阅读说明：本技术 一种高性能耐碱性红色活性染料及其制备方法 (High-performance alkali-resistant red reactive dye and preparation method thereof ) 是由 刘儒初 高超 徐鹏 张坤明 张怡 于 2020-12-21 设计创作，主要内容包括：本发明公开了一种高性能耐碱性红色活性染料,所述红色活性染料由结构通式Ⅰ所示。本发明红色活性染料中有两个不同结构的发色体组成,属于分子内配色,克服了现有红色活性染料分子间配色时存在直接性、竭染率、反应性等不一致的问题,此外,本发明提供的红色活性染料含有一氯均三嗪活性基、2-氯乙基砜基活性基和(2-磺酸氧乙基砜基)乙基氨甲酰基活性基,具有较高的耐碱性水解稳定性,因此,本发明活性红色染料不仅具有高的提升力,还具有优良的耐碱性水解温度性,提高了染料的固色率,减少了有色废水的产生,使得染料的环保性提升了。(The invention discloses a high-performance alkali-resistant red reactive dye which is shown by a structural general formula I. The red reactive dye provided by the invention comprises monochlorotriazine active groups, 2-chloroethyl sulfonyl active groups and (2-sulfooxyethyl sulfonyl) ethylcarbamoyl active groups, and has high alkali-resistant hydrolysis stability, so that the reactive red dye not only has high lifting power, but also has excellent alkali-resistant hydrolysis temperature, the color fixing rate of the dye is improved, the generation of colored wastewater is reduced, and the environmental protection property of the dye is improved.)

1. A high-performance alkali-resistant red reactive dye is characterized in that: the red reactive dye is a compound shown in a structural general formula I:

in the general formula I, X is F or Cl; m is-H or an alkali metal;

the R is₁is-H or-OCH₃(ii) a The R is₂is-H, -CH₃or-CH₂SO₃H。

2. The high performance alkali-resistant red reactive dye according to claim 1, wherein: r in the structural general formula I₁is-H or-CH₃(ii) a The R is₂is-H, -CH₃or-CH₂SO₃H; x is Cl; m is Na.

3. The high performance alkali-resistant red reactive dye according to claim 2, wherein: in the structural general formula I, R₁is-H; the R is₂is-H, -CH₃or-CH₂SO₃H; x is Cl; m is Na.

4. The high performance alkali-resistant red reactive dye according to claim 3, wherein: in the structural general formula I, R₁is-H; the R is₂is-H or-CH₂SO₃H; x is Cl; m is Na.

5. The high performance alkali-resistant red reactive dye according to claim 4, wherein: in the structural general formula I, R₁is-H, said R₂is-H, X is Cl, and M is Na.

6. A commercial colorant prepared from a high performance alkali-resistant red reactive dye according to any one of claims 1 to 5, wherein: the commercial coloring agent comprises 75-85% of red reactive dye, 5-15% of dispersing agent, 0.1-0.5% of dustproof agent and 5-15% of anhydrous sodium sulphate.

7. The commercial stain of claim 6, wherein: the dispersing agent is a methyl naphthalene sulfonic acid formaldehyde condensate, and the dustproof agent is a water-soluble high molecular compound.

8. Use of a commercial colorant according to claim 7, wherein: the commercial dyeing agent is used for dyeing cellulose fibers, and the cellulose fibers are cellulose fibers containing hydroxyl and/or nitrogen.

9. Use of a commercial colorant according to claim 8, wherein: the cellulose fiber is one or more blended fiber fabrics of cotton, viscose and hemp.

10. A method for preparing a high performance alkali-resistant red reactive dye according to any one of claims 1 to 5, wherein: the preparation method of the compound with the general formula I comprises the following specific steps:

step one, preparing an H acid monoazo red reactive dye:

adding 100% of 4-amino- (2 '- ((2' - (sulfuric ester) ethyl) sulfonyl) ethyl) benzamide compound a, crushed ice and a small amount of crushed ice into a beaker, grinding the ice for 2 hours, then adding HCl solution, continuously stirring and reacting for 1 hour, then slowly dropwise adding sodium nitrite solution, continuously reacting for 30-60 minutes after dropwise adding is finished, detecting that no compound a is used as a reaction end point through an Ehrlich reagent, and removing excessive nitrous acid through sulfamic acid to prepare the diazonium salt of the compound a;

pulping cyanuric chloride or cyanuric fluoride for half an hour, slowly dripping an H acid solution into the pulping liquid of the cyanuric chloride or the cyanuric fluoride, controlling the pH value of the reaction to be between 2 and 3, keeping the temperature to be between 0 and 5 ℃, keeping the reaction for 1 to 2 hours under the condition, detecting no H acid as the reaction end point through an Elephrine reagent to prepare a reaction liquid of a polycondensation product of the cyanuric chloride or the cyanuric fluoride and the H acid, slowly adding a diazonium salt of the compound a into the reaction liquid of the polycondensation product of the cyanuric chloride or the cyanuric fluoride and the H acid, adjusting the pH value of the solution to be between 6 and 7 by baking soda at the temperature of 5 to 10 ℃ for 2 to 4 hours, detecting that both diazo components and coupling components disappear as the reaction end point through a ring penetration method, preparing the H acid monoazo red reactive dye after the reaction is finished, wherein the molar ratio of the compound a to sodium nitrite is 1:1.01 to 1.03, the molar ratio of the compound a to the hydrochloric acid is 1:1.05-1.1, and the molar ratio of the cyanuric chloride or the cyanuric fluoride to the H acid is 1:1-1.03: 1;

step two, preparing diazo salt c of monoazo red reactive dye containing H acid:

dissolving 100% of 2, 4-diaminobenzene sulfonic acid in water, slowly adding the solution into the H acid monoazo red reactive dye solution prepared in the first step, heating to 30-35 ℃, controlling the reaction pH to be 3-3.5, keeping the reaction condition for continuously reacting for 2-3 hours, taking the disappearance of the 2, 4-diaminobenzene sulfonic acid as a reaction end point through thin layer chromatography and liquid phase detection, cooling to below 10 ℃ after the reaction is finished, adjusting the pH value of a reaction system to 7.0 by baking soda, adding sodium nitrite, stirring and dissolving to obtain a mixed solution, slowly dropwise adding the mixed solution into a hydrochloric acid aqueous solution cooled to 0-5 ℃, continuously reacting for 1-1.5 hours after the dropwise adding is finished to obtain a diazonium salt c containing the H acid monoazo red reactive dye, wherein the molar ratio of the 2, 4-diaminobenzene sulfonic acid to the H acid monoazo red reactive dye is 0.98:1-1:1, the molar ratio of the 2, 4-diaminobenzene sulfonic acid to the hydrochloric acid is 1:2.5-1:2.8, and the molar ratio of the 2, 4-diaminobenzene sulfonic acid to the sodium nitrite is 1:1.01-1: 1.03;

step three, preparation of a compound g:

pulping cyanuric chloride or cyanuric fluoride for half an hour, slowly dripping a 2, 4-diaminobenzene sulfonic acid solution into the pulping liquid of cyanuric chloride or cyanuric fluoride, controlling the pH value of the reaction to be between 2 and 3, keeping the temperature to be between 0 and 5 ℃, keeping the reaction for 1 to 2 hours under the condition, detecting the reaction end point by thin layer chromatography, the disappearance of the 2, 4-diaminobenzene sulfonic acid is taken as the reaction end point to prepare the reaction liquid of the polycondensation product of the cyanuric chloride or the cyanuric fluoride and the 2, 4-diaminobenzene sulfonic acid, then adjusting the pH value of the reaction solution to about 7 by using baking soda, adding hydrochloric acid, then adding a sodium nitrite solution, carrying out diazotization reaction for 2-3 hours, detecting that no 2, 4-diaminobenzene sulfonic acid first condensation product is used as an end point by using an Ehrlich reagent, and preparing a diazonium salt compound d after the reaction is finished;

adding a 100% J acid compound e into the solution of the compound d, keeping the reaction temperature at 0-5 ℃, keeping the pH value below 2, continuing to react for 4-6 hours, detecting the reaction end point of no diazonium salt and coupling components by a ring penetration method, and preparing a monoazo reactive dye f containing J acid after the reaction is finished;

adding [2- (2-aminoethoxy) -2' -chloro ] -diethyl sulfone hydrochloride into the solution of the monoazo reactive dye f containing the J acid, heating to 30-40 ℃, adjusting the pH value of the reaction to 5-6 by using baking soda, keeping the reaction condition for continuing to react for 1.5-2 hours, and detecting the reaction end point by thin layer chromatography or liquid phase chromatography to obtain a compound g after the reaction is finished;

the molar ratio of the 2, 4-diaminobenzene sulfonic acid to the sodium nitrite is 1:1.01-1.03, the molar ratio of the 2, 4-diaminobenzene sulfonic acid to the hydrochloric acid is 1:2.5-1:2.8, the molar ratio of cyanuric chloride or cyanuric fluoride to the 2, 4-diaminobenzene sulfonic acid is 1:1-1.03:1, and the molar ratio of the J acid compound e to the compound d is 1:1-0.98: 1; the molar ratio of the [2- (2-aminoethoxy) -2' -chloro ] -diethyl sulfone hydrochloride to the monoazo reactive dye f containing J acid is 1:1 to 1.01: 1;

step four, preparing the alkali-resistant red reactive dye I:

dropwise adding the solution containing diazonium salt c of the H acid monoazo red reactive dye prepared in the step two into the solution of the compound g prepared in the step three, controlling the pH value of the reaction to be between 7 and 8, keeping the pH value of the reaction solution to be between 7 and 8, reacting at the temperature of 5 to 10 ℃ for 2 to 4 hours, detecting that no diazonium salt and a coupling component are reaction end points through a ring infiltration method, drying at 75 ℃ after the reaction is finished to prepare a reactive dye solid, and then grinding the reactive dye solid through a grinding device to prepare the final reactive dye solid powder shown as the compound I, wherein the molar ratio of the diazonium salt c to the compound g is 0.98:1-1.01: 1;

the grinding device comprises a base (1), wherein a grinding plate (3) is arranged at the top of the base (1), a sliding mechanism (2) is arranged at the top of the base (1) and positioned on the outer side of the grinding plate (3), a mounting plate (4) is arranged at the bottom of the grinding plate (3), a material conveying mechanism (5) is arranged at the top of the mounting plate (4), and a collecting mechanism (6) is arranged at the top of the base (1) and positioned on the mounting plate (4);

the sliding mechanism (2) comprises a Z shaft (201) positioned at the top of the base (1), first sliding blocks (202) are connected to the outer side of the Z shaft (201) in a sliding mode, the number of the first sliding blocks (202) is four, one end of each two groups of the first sliding blocks (202) is fixedly connected through an X shaft (203), a second sliding block (204) is connected to the outer side of the X shaft (203) in a sliding mode, the number of the second sliding blocks (204) is two, one end of each two groups of the second sliding blocks (204) is fixedly connected through a Y shaft (205), a third sliding block (206) is connected to the outer side of the Y shaft (205) in a sliding mode, an air cylinder (208) is installed on one side of the Z shaft (201), the top of the air cylinder (208) is fixedly connected with the first sliding blocks (202), and the second sliding blocks (204) and the third sliding blocks (206) are controlled to slide through a sliding control unit (207;

the bottom of the third sliding block (206) is fixedly connected with a fixing plate (7), the bottom of the fixing plate (7) is provided with a servo motor (8), the output end of the servo motor (8) is fixedly connected with an installation frame (9), and the inner wall of the installation frame (9) is hinged with a grinding block (10) through a pin shaft;

the top of the grinding plate (3) is provided with a groove (304), the groove (304) comprises an arc-shaped surface (301) and a flat bottom (302), and the top of the flat bottom (302) is provided with a through hole (303);

the material conveying mechanism (5) comprises a sleeve rod (501) located at the top of the mounting plate (4), a telescopic rod (502) penetrating through the top of the sleeve rod (501) is arranged inside the sleeve rod (501), a magnetic block (503) is fixedly connected to the top of the telescopic rod (502), a sliding block (507) is fixedly connected to the bottom of the telescopic rod (502), a sealing ring (508) is arranged outside the sliding block (507), the outer side of the sealing ring (508) is in contact with the inner wall of the sleeve rod (501), a sealing gasket is arranged at the joint of the outer side of the telescopic rod (502) and the inner wall of the sleeve rod (501), a vent hole (505) is arranged inside the telescopic rod (502), a branch hole (504) is arranged inside the magnetic block (503), the branch hole (504) is communicated with the vent hole (505), a spring (509) is welded at the bottom of the sliding block (507), and the bottom end of the spring (509) is welded with the top of the mounting plate (4), a blanking hole (506) is formed in the outer side of the loop bar (501);

collect mechanism (6) including being located collecting box (601) at base (1) top, the figure of collecting box (601) is the same with the figure of defeated material mechanism (5) and is thirty groups at least, the top of collecting box (601) is provided with and runs through to feeding pipe (603) of collecting box (601) inside, one side of collecting box (601) is provided with and runs through to inside discharging pipe (602) of collecting box (601), the top of mounting panel (4) is provided with the bottom fixed connection of the top of fixed pipe (12) and abrasive disc (3), mounting panel (4) top is located every two sets of the inside of loop bar (501) all is provided with hole (11), and hole (11) bottom and feeding pipe (603) intercommunication.

Technical Field

The invention relates to the technical field of reactive dyes, in particular to a high-performance alkali-resistant red reactive dye and a preparation method thereof.

Background

The reactive dye has complete chromatogram and rich varieties, and is widely applied to dyes of cellulose fibers and protein fibers, the reactive dye contains reactive groups in the molecular structure, and can react with hydroxyl on the cellulose fibers or amino on the protein fibers under the alkaline condition to be covalently bonded on the fibers, so the wet rubbing fastness performance of the fibers dyed by the reactive dye is excellent, meanwhile, the reactive dye is water-soluble dye, and the dyeing medium is water, so the hydrolysis of the reactive dye under the alkaline condition is inevitable, the hydrolyzed dye cannot further react with the fibers, and the residual water causes a large amount of colored wastewater, generally, the fixation rate of the traditional reactive dye on the fibers is generally 60-70%, which causes a large amount of resource waste and environmental pollution, and the reasons are two main points: firstly, because the traditional reactive dye contains 1-2 reactive groups, and the active group taking the traditional p- (beta-ethyl sulfone sulfate) aniline as the raw material has poor alkali-resistant hydrolysis stability; secondly, because the diffusivity of the dye is not good enough, the diffusivity of the dye is better, the larger the diffusivity is, the more uniform the distribution of the dye on the fiber is, the higher the probability of bonding between the dye and the fiber is, the higher the reaction rate and the fixation efficiency are, the better the level dyeing and the penetration degree are, and the good and bad of the diffusivity performance are, depending on the structure and the size of the solid powder of the dye, the larger the molecules are, the more difficult the molecules are to diffuse, so how to improve the fixation performance and the alkali resistance of the dye are always the key points of research in the dye and printing and dyeing industries.

The compounding of reactive dyes is an important technology for the application of reactive dyes, at present, many of the commercially available reactive dye varieties are compounded by dye molecules with different structures, however, the compatibility of dyes with different molecular structures needs to be considered when the dyes are compounded, so that the aspects of the substantivity, the reactivity, the exhaustion degree and the like of the dye molecules need to be considered, and the problem that the compounding of the dye molecules with different structures cannot be compounded due to the difference of the structures and the performances is solved, the compounding of the dye molecules with different chromophoric systems is further expanded, and the development of unique color and light is still a difficult problem in the dye and printing and dyeing industries.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a high-performance alkali-resistant red reactive dye and a preparation method thereof, wherein the reactive red dye consists of two color bodies with different structures, belongs to intramolecular color matching, and overcomes the problem of inconsistency of directness, exhaustion rate, reactivity and the like in intermolecular color matching of the existing reactive red dye, in addition, the reactive red dye provided by the invention contains monochlorotriazine active group, 2-chloroethyl sulfuryl active group and (2-sulfooxyethyl sulfuryl) ethylcarbamoyl active group, and has higher alkali-resistant hydrolytic stability, so the reactive red dye not only has high lifting power, but also has excellent alkali-resistant hydrolysis temperature, improves the color fixing rate of the dye, reduces the generation of colored wastewater, and improves the environmental protection of the dye, has wide application prospect.

In order to achieve the purpose, the invention provides the following technical scheme: a high-performance alkali-resistant red reactive dye is a compound shown in a structural general formula I:

in the general formula I, X is F or Cl; m is-H or an alkali metal;

the R is₁is-H or-OCH₃(ii) a The R is₂is-H, -CH₃or-CH₂SO₃H。

Preferably, the structural formulaIn I, R is as defined in₁is-H or-CH₃(ii) a The R is₂is-H, -CH₃or-CH₂SO₃H; x is Cl; m is Na.

Preferably, in the structural formula I, R is₁is-H; the R is₂is-H, -CH₃or-CH₂SO₃H; x is Cl; m is Na.

Preferably, in the structural formula I, R is₁is-H; the R is₂is-H or-CH₂SO₃H; x is Cl; m is Na.

Preferably, in the structural formula I, R is₁is-H, said R₂is-H, X is Cl, and M is Na.

Preferably, the commercial coloring agent comprises the following raw materials in percentage by mass: 75-85% of red reactive dye, 5-15% of dispersing agent, 0.1-0.5% of dust-proof agent and 5-15% of anhydrous sodium sulphate.

Preferably, the diffusing agent is a methyl naphthalene sulfonic acid formaldehyde condensate, and the dustproof agent is a water-soluble polymer compound.

Preferably, the commercial dyeing agent is used for dyeing cellulose fibers, which are hydroxyl-and/or nitrogen-containing cellulose fibers.

Preferably, the cellulose fiber is one or more blended fiber fabrics of cotton, viscose and hemp.

Preferably, the preparation method of the compound of the general formula I comprises the following specific steps:

step one, preparing an H acid monoazo red reactive dye:

adding 100% of 4-amino- (2 '- ((2' - (sulfuric ester) ethyl) sulfonyl) ethyl) benzamide compound a, crushed ice and a small amount of crushed ice into a beaker, grinding the ice for 2 hours, then adding HCl solution, continuously stirring and reacting for 1 hour, then slowly dropwise adding sodium nitrite solution, continuously reacting for 30-60 minutes after dropwise adding is finished, detecting the reaction end point by an Ehrlich reagent, and removing excessive nitrous acid by sulfamic acid to prepare the diazonium salt of the compound a;

pulping cyanuric chloride or cyanuric fluoride for half an hour, slowly dripping H acid solution into the pulping liquid of cyanuric chloride or cyanuric fluoride, controlling the pH value of the reaction to be between 2 and 3, keeping the temperature to be between 0 and 5 ℃, keeping the reaction for 1 to 2 hours under the condition, detecting the reaction end point by an Ehrlich reagent to prepare reaction liquid of a polycondensate of cyanuric chloride or cyanuric fluoride and H acid, slowly adding the diazonium salt of the compound a into the reaction liquid of the polycondensate of cyanuric chloride or cyanuric fluoride and H acid, adjusting the pH value of the solution to be between 6 and 7 by baking soda, reacting for 2 to 4 hours at the temperature of 5 to 10 ℃, detecting the reaction end point by a permeation ring method, preparing the H acid monoazo red reactive dye after the reaction is finished, wherein the molar ratio of the compound a to sodium nitrite is 1:1.01 to 1.03, the molar ratio of the compound a to the hydrochloric acid is 1:1.05-1.1, and the molar ratio of the cyanuric chloride or the cyanuric fluoride to the H acid is 1:1-1.03: 1;

step two, preparing diazo salt c of monoazo red reactive dye containing H acid:

dissolving 100% of 2, 4-diaminobenzene sulfonic acid in water, slowly adding the solution into the H acid monoazo red reactive dye solution prepared in the first step, heating to 30-35 ℃, controlling the reaction pH to be 3-3.5, keeping the reaction condition for continuously reacting for 2-3 hours, detecting the reaction end point through thin layer chromatography and liquid phase, cooling to below 10 ℃ after the reaction is finished, adjusting the pH value of the reaction system to be about 7.0 by baking soda, adding sodium nitrite, stirring and dissolving to obtain a mixed solution, slowly dropwise adding the mixed solution into a hydrochloric acid aqueous solution cooled to 0-5 ℃, continuously reacting for 1-1.5 hours after the dropwise adding is finished to obtain the diazonium salt c containing the H acid monoazo red reactive dye, wherein the molar ratio of the 2, 4-diaminobenzene sulfonic acid to the H acid monoazo red reactive dye is 0.98:1-1:1, the molar ratio of the 2, 4-diaminobenzene sulfonic acid to the hydrochloric acid is 1:2.5-1:2.8, and the molar ratio of the 2, 4-diaminobenzene sulfonic acid to the sodium nitrite is 1:1.01-1: 1.03;

step three, preparation of a compound g:

pulping cyanuric chloride or cyanuric fluoride for half an hour, slowly dripping a 2, 4-diaminobenzene sulfonic acid solution into the pulping liquid of cyanuric chloride or cyanuric fluoride, controlling the reaction pH value to be between 2 and 3, keeping the temperature to be between 0 and 5 ℃, keeping the reaction for 1 to 2 hours under the condition, detecting the reaction end point through thin-layer chromatography to prepare a reaction liquid of a polycondensation product of cyanuric chloride or cyanuric fluoride and 2, 4-diaminobenzene sulfonic acid, adjusting the pH value of the reaction liquid to be about 7 by using baking soda, adding hydrochloric acid, adding a sodium nitrite solution, carrying out diazotization for 2 to 3 hours, detecting the reaction end point through an Ehrlich reagent, and preparing a diazonium salt compound d after the reaction is finished;

adding a 100% J acid compound e into the compound d solution, keeping the reaction temperature at 0-5 ℃, keeping the pH value below 2, continuing to react for 4-6 hours, detecting the reaction end point by a ring permeation method, and after the reaction is finished, preparing a monoazo reactive dye f containing J acid;

adding [2- (2-aminoethoxy) -2' -chloro ] -diethyl sulfone hydrochloride into the solution of the monoazo reactive dye f containing the J acid, heating to 30-40 ℃, adjusting the pH value of the reaction to 5-6 by using baking soda, keeping the reaction condition for continuing to react for 1.5-2 hours, and detecting the reaction end point by thin layer chromatography or liquid phase chromatography to obtain a compound g after the reaction is finished;

the molar ratio of the 2, 4-diaminobenzene sulfonic acid to the sodium nitrite is 1:1.01-1.03, the molar ratio of the 2, 4-diaminobenzene sulfonic acid to the hydrochloric acid is 1:2.5-1:2.8, the molar ratio of cyanuric chloride or cyanuric fluoride to the 2, 4-diaminobenzene sulfonic acid is 1:1-1.03:1, and the molar ratio of the J acid compound e to the compound d is 1:1-0.98: 1; the molar ratio of the [2- (2-aminoethoxy) -2' -chloro ] -diethyl sulfone hydrochloride to the monoazo reactive dye f containing J acid is 1:1 to 1.01: 1;

step four, preparing the alkali-resistant red reactive dye I:

dropwise adding the solution containing H acid monoazo red reactive dye diazonium salt c prepared in the step two into the solution of the compound g prepared in the step three, controlling the pH value of the reaction to be between 7 and 8, keeping the pH value of the reaction solution to be between 7 and 8, reacting at the temperature of 5 to 10 ℃ for 2 to 4 hours, detecting the reaction end point by a ring infiltration method, drying at 75 ℃ after the reaction is finished to prepare a reactive dye solid, and then grinding the reactive dye solid by a grinding device to prepare the final reactive dye solid powder shown as the compound I, wherein the molar ratio of the diazonium salt c to the compound g is 0.98:1-1.01: 1.

The grinding device comprises a base, wherein a grinding plate is arranged at the top of the base, a sliding mechanism is arranged on the outer side, located on the grinding plate, of the top of the base, a mounting plate is arranged at the bottom of the grinding plate, a material conveying mechanism is arranged at the top of the mounting plate, and a collecting mechanism is arranged on the top of the base, located on the mounting plate.

Slide mechanism is including the Z axle that is located the base top, the outside sliding connection of Z axle has first slider, the figure of first slider is four groups, every two sets of X axle fixed connection is passed through to the one end of first slider, the outside sliding connection of X axle has the second slider, and the figure of second slider is two sets of, and is two sets of Y axle fixed connection is passed through to the one end of second slider, the outside sliding connection of Y axle has the third slider, the cylinder is installed to one side of Z axle, and the top and the first slider fixed connection of cylinder, the second slider all slides through the slip control unit control with the third slider.

The bottom fixedly connected with fixed plate of third slider, and the bottom of fixed plate installs servo motor, servo motor's output fixedly connected with mounting bracket, and the inner wall of mounting bracket is connected with the grinding piece through the round pin axle is articulated.

The grinding plate is characterized in that a groove is formed in the top of the grinding plate and comprises an arc-shaped surface and a flat bottom, and a through hole is formed in the top of the flat bottom.

Defeated material mechanism is including being located the loop bar at mounting panel top, and the inside of loop bar is provided with the telescopic rod that rises that runs through to the loop bar top, the top fixedly connected with magnetic path of telescopic rod rises, and the bottom fixedly connected with slider of telescopic rod, the outside of slider is provided with the sealing washer, and the outside of sealing washer contacts with the inner wall of loop bar, it is sealed to rise the junction of the telescopic rod outside and loop bar inner wall to be provided with sealed the pad, the inside of rising the telescopic rod is provided with the air vent, the inside of magnetic path is provided with a hole, and just props up hole and air vent intercommunication, the bottom welding of slider has the spring, and the bottom of spring and the top welded connection of mounting panel, the outside of loop bar is provided with the unloading hole.

The collecting mechanism comprises a collecting box located at the top of the base, the number of the collecting box is the same as that of the conveying mechanism, and is at least thirty groups, the top of the collecting box is provided with an inlet pipe penetrating to the inside of the collecting box, one side of the collecting box is provided with a discharging pipe penetrating to the inside of the collecting box, the top of the mounting plate is provided with a fixed pipe, the top of the fixed pipe is fixedly connected with the bottom of the grinding plate, the top of the mounting plate is located in every two groups, holes are formed in the inside of the sleeve rods, and the bottoms of the holes are communicated with the.

Compared with the prior art, the invention has the beneficial effects that:

(1) the red reactive dye provided by the invention contains two different color bodies and four reactive groups, wherein the H acid monoazo dye is a red color body, the maximum absorption wavelength is 520-550 and is brilliant blue red, the disazo color body taking J acid as a coupling component has the maximum absorption wavelength of 500-520 and is bright red, the red reactive dye belongs to intramolecular color matching between the different color bodies, and the color light of the final red reactive dye can be adjusted, and the red reactive dye is a monomolecular dye, so that the red reactive dye has the remarkable advantage that the problems of reactivity, directness, exhaustion rate and the like existing between the two different color bodies do not need to be considered;

(2) the invention has the advantages that four reactable groups are respectively two monochlorotriazine reactable groups, namely a 2-chloroethyl sulfonyl reactable group and a (2-sulfooxyethyl sulfonyl) ethylcarbamoyl reactable group, the monochlorotriazine reactable group has high alkali hydrolysis resistance, the 2-chloroethyl sulfonyl reactable group is derived from [2- (2-aminoethoxy) -2' -chloro ] -diethylsulfone, belongs to a fatty chain reactable group, and is different from the traditional (beta-ethyl sulfone sulfate) aniline vinylsulfonyl reactable group, the fatty chain reactable group has no electron-donating effect of a benzene ring, the density of the 2-chloroethyl sulfone electron cloud is further reduced, the reaction activity is reduced, and the nucleophilic addition reaction capability of water molecules to the fatty chain is reduced under the alkaline condition, therefore, the alkali resistance of the 2-chloroethyl sulfonyl reactive group is increased, the sulfone ethyl group and the benzene ring in the (2-sulfooxyethyl sulfonyl) ethylcarbamoyl reactive group are connected together through an amide group, the electronic effect of the benzene ring on the active group is reduced, the active dye containing the (2-sulfooxyethyl sulfonyl) ethylcarbamoyl has higher alkali resistance hydrolysis stability, meanwhile, the positions of the four reactive groups are regulated and controlled at different parts of a dye molecule through structural design, and the left, middle and right positions of the whole dye molecule all have the reactive groups, so that the reaction probability of the final dye and fibers can be effectively improved, and more importantly, the color fixing rate of the dye on the fibers can be obviously improved;

(3) the active red dye prepared by the invention has high solubility, and the cotton staining fastness and the light fastness are good and reach more than 4 grades; the reactive red dye has the color fixation rate of more than 87 percent, which is higher than that of the traditional reactive dye by more than 15 percent, and after the innovative design of the molecular structure of the reactive dye, the reactive red dye has good alkali resistance, the dye printing paste is placed for 1 week and then prints and dyes the cloth sample, and compared with the cloth sample dyed without the printing paste, the dyed cloth sample only reduces the relative strength by less than 3 percent, effectively improves the color fixation rate, reduces the generation of colored wastewater, and improves the environmental protection property of the dye;

(4) the invention can drive the grinding block to change the angle in the direction of one hundred eighty degrees for grinding through the arranged sliding mechanism, simultaneously, the material conveying mechanisms independently operate, the material conveying mechanism corresponding to the bottom of the grinding block is only operated when the grinding block arrives at the right position, when the grinding block moves to the right position corresponding to the top of the material conveying mechanism, the magnetic force of the magnetic force area just attracts the magnetic block upwards and drives the lifting and contracting rod to ascend, the wave crest at the top of the magnetic block can be meshed with the wave trough on the grinding unit at the moment, the wave trough at the top of the magnetic block is meshed with the wave crest on the grinding unit, therefore, the magnetic block and the grinding unit can form mutual friction and grind the solid dye, meanwhile, the rising of the lifting and contracting rod can compress the air in the sleeve rod, and when the grinding block continues to move to the right, the wave crest at the top of the magnetic block can be corresponding to the wave crest on, the wave troughs on the top of the magnetic block correspond to the wave troughs on the grinding unit, the wave crests on the top of the magnetic block and the wave crests on the grinding unit can form a group of cavities, compressed air can be released so that dye powder in the cavities is blown, larger powder is prevented from being pressed down and cannot be ground, meanwhile, the grinding block is designed in a partition mode, the mutual influence among various material conveying mechanisms can be effectively avoided, the lifting and contracting rod can be lifted or lowered, the powder is blown during lifting, the moving rod is driven to descend during descending, the powder can be absorbed and stored in the collecting box, various mechanisms are matched, dye solid can be precisely ground, the dye diffusivity is effectively improved, the dye fixation rate is higher, and meanwhile, the material can be automatically collected, the red reactive dye has better use effect, thus having excellent alkali hydrolysis temperature resistance and wide application prospect.

Drawings

FIG. 1 is a schematic diagram of the reaction of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic structural view of the sliding mechanism of the present invention;

FIG. 4 is a schematic top view of the polishing plate of the present invention;

FIG. 5 is a diagram illustrating a state in which the grinding block of the present invention is rotated forty-five degrees;

FIG. 6 is a partial schematic view of the present invention;

FIG. 7 is an enlarged view of the present invention A;

FIG. 8 is an enlarged view of invention B;

fig. 9 is a schematic structural view of the collecting mechanism of the present invention.

In the figure: 1. a base; 2. a sliding mechanism; 201. a Z axis; 202. a first slider; 203. an X axis; 204. a second slider; 205. a Y axis; 206. a third slider; 207. a slide control unit; 208. a cylinder; 3. a grinding plate; 301. an arc-shaped surface; 302. a flat bottom; 303. a through hole; 304. a groove; 4. mounting a plate; 5. a material conveying mechanism; 501. a loop bar; 502. lifting and shrinking the rod; 503. a magnetic block; 504. supporting a hole; 505. a vent hole; 506. a blanking hole; 507. a slider; 508. a seal ring; 509. a spring; 6. a collection mechanism; 601. a collection box; 602. a discharge pipe; 603. a feed pipe; 604. a piston; 605. a travel bar; 7. a fixing plate; 8. a servo motor; 9. a mounting frame; 10. grinding blocks; 101. a grinding unit; 102. wave crest; 103. a trough of a wave; 104. a magnetic field; 105. a blank area; 11. a hole; 12. and fixing the tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

In this example, the commercial reactive red dye includes a reactive red dye I-2, a diffusing agent (a methylnaphthalenesulfonic acid formaldehyde condensate, degree of condensation 4, degree of sulfonation 2), 85% by mass of the reactive red dye, 5% by mass of the diffusing agent, 0.1% by mass of an aqueous polymer dustproof agent, and 9.9% by mass of anhydrous sodium sulfate.

Taking 2g of the commercial dye, adding 8g of urea, 2.5g of baking soda, 60g of sodium alginate paste, 1g of anti-dyeing salt and 26.5g of water to prepare active red printing paste, printing the cotton fabric, drying at 85 ℃, steaming for 7 minutes (relative humidity of 70%) by steam at 100 ℃, washing and drying to obtain the dyed fabric, wherein the product performance test result is shown in table 1.

The preparation method of the active red dye I-1 comprises the following steps:

the method comprises the following steps: 35.2g of 4-amino- (2' - ((2 "- (sulfate) ethyl) sulfonyl) ethyl) benzamide, 200g of ice and 20mL of water, which had a 100% reduction, were added to a 1000mL beaker, ice-milled for 2 hours, 12.2g of industrial hydrochloric acid (30%) is added, the reaction is continued for 1 hour with stirring, 7.1g of sodium nitrite solid with a volume of 100% is dissolved in 30mL of water and then slowly added dropwise to the system, keeping the reaction solution to be congo red test paper in slight blue and KI test paper in slight blue in the dripping process, after the dripping is finished, keeping the temperature of the reaction system at 0-5 ℃, continuing the reaction for 1 hour, detecting the reaction end point by the Ehrlich reagent, after the reaction is finished, removing excessive nitrous acid by sulfamic acid to prepare a diazonium salt solution of 4-amino- (2 '- ((2' - (sulfuric ester) ethyl) sulfuryl) ethyl) benzamide;

adding 19.2g of cyanuric chloride which is 100 percent folded, 200g of ice and 20mL of water into a 1000mL beaker, stirring and pulping for 45 minutes, adding 40.1g H acid monosodium salt (85 percent) into 400mL of water, adding 20 percent NaOH solution under stirring, adjusting the pH value to 7.8 to dissolve the sodium tripolyphosphate, cooling to 5 ℃, then slowly adding the H acid solution into the cyanuric chloride pulping solution, controlling the reaction condition to be between 0 and 5 ℃ and the pH value to be between 3 and 4, and continuing to react for 60 minutes under the condition after the addition is finished to prepare a primary condensation product solution of cyanuric chloride and H acid;

slowly adding the prepared diazonium salt solution of 4-amino- (2 '- ((2' - (sulfuric ester) ethyl) sulfuryl) ethyl) benzamide into a primary condensation product solution of cyanuric chloride and H acid, controlling the pH value of a reaction system to be about 6-7, keeping the pH value to be 6-7, reacting for 3 hours at the temperature of 8 ℃, detecting the reaction end point by a ring penetration method, and preparing a red monoazo reactive dye solution of the H acid after the reaction is finished;

step two: adding 18.8g of 2, 4-diaminobenzene sulfonic acid with the volume of 100 percent and 400mL of water into a 1000mL beaker, adding baking soda to adjust the pH value to 5-6, stirring and dissolving, then slowly adding the mixture into the H acid monoazo red reactive dye solution prepared in the step one, heating to 30-35 ℃, controlling the reaction pH value to 3-3.5, keeping the reaction condition for continuous reaction for 2-3 hours, detecting the reaction end point through thin layer chromatography and liquid phase, cooling to below 10 ℃ after the reaction is finished, adjusting the pH value of the reaction system to about 7.0 by using the baking soda, adding 100 percent of 7.1g of sodium nitrite solid, stirring and dissolving to obtain a mixed solution, slowly dropwise adding the mixed solution into a hydrochloric acid aqueous solution (34.1g of industrial hydrochloric acid (30 percent) which is cooled to about 5 ℃ and dissolving in 100mL of water, continuously carrying out diazotization reaction for 1 hour after the dropwise addition is finished, after the reaction is finished, removing excessive nitrous acid by sulfamic acid to prepare diazo salt of monoazo red reactive dye containing H acid;

step three: adding 100% 19.2g cyanuric chloride, 200g ice and 20mL water into a 1000mL beaker, beating for 45 minutes under stirring, adding 100% 18.8g 2, 4-diaminobenzene sulfonic acid (2, 4-diaminobenzene sulfonic acid) and 400mL water into the 1000mL beaker, adding sodium bicarbonate to adjust the pH value to 5-6, stirring and dissolving, then slowly adding into the cyanuric chloride beating solution, controlling the reaction condition at 0-5 ℃ and pH 3-4, continuing to react for 60 minutes under the condition after the addition is finished, preparing a primary condensation product solution of cyanuric chloride and 2, 4-diaminobenzene sulfonic acid, cooling to below 10 ℃ after the reaction is finished, adjusting the pH value of the reaction system to about 7.0 with sodium bicarbonate, adding 100% 7.1g sodium nitrite solid, stirring and dissolving to obtain a mixed solution, slowly dropping the mixed solution into a hydrochloric acid solution (34.1g industrial hydrochloric acid) (30%) cooled to about 5 ℃, after the dropwise addition is finished, diazotization reaction is continuously carried out for 1 hour, an Ehrlich reagent detects the reaction end point, and after the reaction is finished, excessive nitrous acid is removed by sulfamic acid to prepare a diazonium salt solution of a primary condensation product of cyanuric chloride and 2, 4-diaminobenzene sulfonic acid;

adding 23.9g of J acid with the concentration of 100% into 400mL of water, adding 20% NaOH solution while stirring, adjusting the pH value to about 6.8 to dissolve the J acid solution, cooling to 5 ℃, adding the J acid solution into a diazonium salt solution of a primary condensation product of cyanuric chloride and 2, 4-diaminobenzene sulfonic acid, keeping the reaction temperature at 0-5 ℃, reacting for 6 hours under the condition, detecting the reaction end point by a ring penetration method, and obtaining a monoazo reactive dye containing the J acid after the reaction is finished;

slowly adding 25.1g of [2- (2-aminoethoxy) -2' -chloro ] -diethyl sulfone hydrochloride solution which is 100 percent into the prepared monoazo reactive dye solution containing the J acid, slowly heating to 35 ℃, regulating the pH value of a reaction system to be about 5 by using baking soda, keeping the reaction condition for continuously reacting for 2 hours, detecting the reaction end point by thin-layer chromatography or liquid phase chromatography, and after the reaction is finished, preparing the monochlorotriazine monoazo reactive dye containing the J acid;

step four: dropwise adding the solution containing the diazonium salt of the H acid monoazo red reactive dye prepared in the step two into the solution containing the J acid monochlorotriazine monoazo reactive dye prepared in the step three, controlling the pH value of the reaction to be about 7, keeping the pH value of the reaction solution to be about 7, reacting at 5-10 ℃ for 3 hours, detecting the reaction endpoint by a permeation ring method, drying at 75 ℃ until the dye solid is obtained after the reaction is finished, placing the dried dye solid into the groove 304, starting a switch of a sliding mechanism 2, and controlling a third slide block 206 outside a Y shaft 205 and a second slide block 204 outside an X shaft 203 to simultaneously slide and the sliding speed of the third slide block 206 to be higher than that of the second slide block 204, so that the grinding block 10 at the bottom of the second slide block 204 is changed in a certain direction due to the change of the speed ratio, and a user can enable the grinding block 10 to be changed in a one hundred eighty degree direction by changing the ratio of the sliding speed of the third slide block 206 to the sliding speed of the second slide block 204 The angle is changed continuously, the servo motor 8 can match with the sliding direction of the grinding block 10 and changes along with the angle change of the grinding block 10, so that the grinding block 10 can be ground in multiple directions better, because each material conveying mechanism 5 operates independently, if the grinding block 10 moves rightwards at the moment, when the grinding block 10 moves rightwards to the right corresponding to the top of the material conveying mechanism 5, the magnetic area 104 just attracts the magnetic block 503 upwards and drives the lifting and contracting rod 502 to ascend, the wave crest 102 at the top of the magnetic block 503 can be meshed with the wave trough 103 on the grinding unit 101 at the moment, the wave trough 103 at the top of the magnetic block 503 is meshed with the wave crest 102 on the grinding unit 101, so that mutual friction can be formed between the magnetic block 503 and the grinding unit 101, meanwhile, the lifting of the lifting and contracting rod 502 can compress the air in the sleeve rod 501, and when the grinding block 10 moves rightwards continuously, the wave crest 102 at the top of the magnetic block 503 gradually corresponds to the wave crest 102 on the grinding unit 101, the dye solid is continuously ground in the corresponding process, the wavy grinding unit 101 continuously "pulls" the powder, so that the powder is continuously ground in the process of being pulled, the grinding effect is better, meanwhile, the wave trough 103 at the top of the magnetic block 503 also gradually corresponds to the wave trough 103 on the grinding unit 101, when the wave trough 103 at the top of the magnetic block 503 corresponds to the wave trough 103 on the grinding unit 101, the wave crest 102 at the top of the magnetic block 503 and the wave crest 102 on the grinding unit 101 can form a group of cavities, the compressed air starts to jet air into the cavities after having a release space, the air blows the dye powder in the cavities, the problem that the larger powder is always pressed at the bottom and cannot be ground is solved, and the pore size at the top of the branch pore 504 is exactly the same as or smaller than the qualified pore size required for grinding the powder (for example, the pore size is the pore size of the qualified filter Aperture is one hundred meshes or more than one hundred meshes), therefore only qualified dye powder can enter the inside of the branch hole 504, and similarly, the grinding block 10 can achieve the same effect by changing angles and grinding more thoroughly, meanwhile, because the grinding block 10 is designed in a partition mode, when the blank area on the grinding block 10 just corresponds to the magnetic block 503 after the grinding block 10 moves a certain distance, at this time, the lifting and shrinking rod 502 can descend when no magnetism exists between the magnetic block 503 and the grinding block 10 and the spring 509 can pull the sliding block 507 downwards, the lifting and shrinking rod 502 descends the front half part, the air inside the sleeve rod 501 is expanded, at this time, the powder can enter the inside of the sleeve rod 501 through the branch hole 504 and the vent hole 505, when the lifting and shrinking rod 502 descends to the maximum position, the blanking hole 506 is communicated with the upper half part of the inside of the sleeve rod 501, at this time, the powder slides to the cavity formed by the top of the mounting plate 4 and the inside of the fixed pipe 12 through the blanking hole 506, meanwhile, when the telescopic rod 502 descends, the movable rod 605 can be driven to descend, the movable rod 605 descends to expand the air in the upper half part of the collecting box 601 (a one-way valve is arranged inside the discharge pipe 602, the air only can not enter and exit, and a one-way valve is arranged inside the feed pipe 603, the powder and the air only can not enter and exit), at the moment, the powder in the cavity at the top of the mounting plate 4 can be absorbed through the feed pipe 603 and stored inside the collecting box 601, and finally, the alkali-resistant red reactive dye I-1 solid powder is prepared.

Example 2

In this example, the commercial reactive red dye includes a reactive red dye I-2, a diffusing agent (a methylnaphthalenesulfonic acid formaldehyde condensate, degree of condensation 4, degree of sulfonation 2), 85% by mass of the reactive red dye, 5% by mass of the diffusing agent, 0.1% by mass of an aqueous polymer dustproof agent, and 9.9% by mass of anhydrous sodium sulfate;

taking 2g of the commercial dye, adding 8g of urea, 2.5g of baking soda, 60g of sodium alginate paste, 1g of anti-dyeing salt and 26.5g of water to prepare active red printing paste, printing the cotton fabric, drying at 85 ℃, steaming for 7 minutes (relative humidity of 70%) by steam at 100 ℃, washing and drying to obtain the dyed fabric, wherein the product performance test result is shown in table 1.

In this example, the reactive dye I-2 was prepared in the same manner as in example 1 except that N-methyl J acid was used in place of J acid in step III of I-1 preparation to prepare the corresponding reactive red dye.

Example 3

The present embodiment is different from embodiment 1 in that:

in this embodiment, the commercial coloring agent includes 75% by mass of a reactive red dye, 5% by mass of a diffusing agent, 0.1% by mass of a dust-proofing agent, and 5% by mass of anhydrous sodium sulfate.

In the embodiment, the molar ratio of the compound a to the sodium nitrite is 1: 1.01-1.03; the molar ratio of the compound a to the hydrochloric acid is 1: 1.05-1.1; the molar ratio of cyanuric chloride or cyanuric fluoride to H acid is 1:1-1.03: 1;

in the embodiment, the molar ratio of the 2, 4-diaminobenzene sulfonic acid to the H acid monoazo red reactive dye is 0.98:1-1: 1; the molar ratio of the 2, 4-diaminobenzene sulfonic acid to the hydrochloric acid is 1:2.5-1: 2.8; the molar ratio of the 2, 4-diaminobenzene sulfonic acid to the sodium nitrite is 1:1.01-1: 1.03;

in the embodiment, the molar ratio of the 2, 4-diaminobenzene sulfonic acid to the sodium nitrite is 1: 1.01-1.03; the molar ratio of the 2, 4-diaminobenzene sulfonic acid to the hydrochloric acid is 1:2.5-1: 2.8; the molar ratio of cyanuric chloride or cyanuric fluoride to 2, 4-diaminobenzene sulfonic acid is 1:1-1.03: 1; the molar ratio of the J acid compound e to the compound d is 1:1-0.98: 1; the molar ratio of [2- (2-aminoethoxy) -2' -chloro ] -diethyl sulfone hydrochloride to the monoazo reactive dye f containing J acid is 1:1-1.01: 1;

in this example, the molar ratio of diazonium salt c to compound g is 0.98:1 to 1.01: 1.

Example 4

The present embodiment is different from embodiment 1 in that:

in this embodiment, the commercial coloring agent includes 85% by mass of a reactive red dye, 15% by mass of a diffusing agent, 0.5% by mass of a dust-proofing agent, and 15% by mass of anhydrous sodium sulfate.

In the embodiment, the molar ratio of the compound a to the sodium nitrite is 1: 1.01-1.03; the molar ratio of the compound a to the hydrochloric acid is 1: 1.05-1.1; the molar ratio of cyanuric chloride or cyanuric fluoride to H acid is 1:1-1.03: 1;

in the embodiment, the molar ratio of the 2, 4-diaminobenzene sulfonic acid to the H acid monoazo red reactive dye is 0.98:1-1: 1; the molar ratio of the 2, 4-diaminobenzene sulfonic acid to the hydrochloric acid is 1:2.5-1: 2.8; the molar ratio of the 2, 4-diaminobenzene sulfonic acid to the sodium nitrite is 1:1.01-1: 1.03;

in the embodiment, the molar ratio of the 2, 4-diaminobenzene sulfonic acid to the sodium nitrite is 1: 1.01-1.03; the molar ratio of the 2, 4-diaminobenzene sulfonic acid to the hydrochloric acid is 1:2.5-1: 2.8; the molar ratio of cyanuric chloride or cyanuric fluoride to 2, 4-diaminobenzene sulfonic acid is 1:1-1.03: 1; the molar ratio of the J acid compound e to the compound d is 1:1-0.98: 1; the molar ratio of [2- (2-aminoethoxy) -2' -chloro ] -diethyl sulfone hydrochloride to the monoazo reactive dye f containing J acid is 1:1-1.01: 1;

in this example, the molar ratio of diazonium salt c to compound g is 0.98:1 to 1.01: 1.

Example 5

In this example, the commercial reactive red dye includes a reactive red dye I-2, a diffusing agent (a methylnaphthalenesulfonic acid formaldehyde condensate, degree of condensation 4, degree of sulfonation 2), 85% by mass of the reactive red dye, 5% by mass of the diffusing agent, 0.1% by mass of an aqueous polymer dustproof agent, and 9.9% by mass of anhydrous sodium sulfate;

taking 2g of the commercial dye, adding 8g of urea, 2.5g of baking soda, 60g of sodium alginate paste, 1g of anti-dyeing salt and 26.5g of water to prepare active red printing paste, printing the cotton fabric, drying at 85 ℃, steaming for 7 minutes (relative humidity of 70%) by steam at 100 ℃, washing and drying to obtain the dyed fabric, wherein the product performance test result is shown in table 1.

In this example, the reactive dye I-3 was prepared in the same manner as in example 1 except that N-sulfomethyl J acid was used in place of J acid in step III of I-1 preparation to prepare the corresponding reactive red dye.

TABLE 1

Note: the alkali resistance performance is evaluated and tested by placing the printing paste for 1 week and then carrying out printing and dyeing, and comparing and testing the relative reduction degree of the integer value of the cloth sample after printing and dyeing with the cloth sample without the printing paste.

As can be seen from the data in Table 1, the active red dye provided by the invention not only has high solubility, but also has good cotton staining fastness and light fastness, and reaches more than grade 4; this active red dyestuff has high fixation rate, reaches more than 87%, more than 15% than current traditional active dyestuff fixation rate, and after active dyestuff molecular structure innovative design, active red dyestuff has good alkali resistance, and the printing paste is placed 1 week back and is carried out the printing dyeing to the cloth appearance, and the cloth appearance after dyeing compares with not placing the printing paste dyeing cloth appearance, and relative strength has only reduced less than 3%.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.