阅读说明：本技术 一种高芳纶含量阻燃面料印花工艺 (printing process for flame-retardant fabric with high aramid fiber content ) 是由 邱双林 刘贤红 陈军 曹盼盼 吕明国 张彬 姚静静 于 2019-09-23 设计创作，主要内容包括：一种高芳纶含量阻燃面料印花工艺,主要包括染料优选、色浆配置、花型印制、织物焙烘、快速蒸化还原、第一次水洗、皂煮、第二次水洗、烘干、拉幅、预缩、成品检验工艺步骤；在高芳纶含量阻燃纺织面料印花时,优选市场易购的还原染料及涂料,对还原染料及耐还原液涂料进行配伍性和配比性能试验,按不同颜色选择还原染料与优选涂料的配置比例,制成印花时所需不同颜色色浆,对高芳纶含量阻燃面料进行还原料与涂料同浆印花；成功改善了目前印染行业中对高芳纶含量阻燃织物面料印花工艺路线繁琐,生产周期长,成本高,质量差,解决了芳纶织物产品印花的技术难题；降低了生产成本,提升企业的经济效益。(a printing process for a flame-retardant fabric with high aramid fiber content mainly comprises the process steps of dye optimization, color paste preparation, pattern printing, fabric baking, rapid evaporation reduction, primary washing, soaping, secondary washing, drying, tentering, preshrinking and finished product inspection; when the high-aramid-content flame-retardant textile fabric is printed, a commercially available vat dye and a commercially available paint are selected, compatibility and proportioning performance tests are carried out on the vat dye and the reduction-resistant liquid paint, the preparation proportion of the vat dye and the selected paint is selected according to different colors, color pastes with different colors required during printing are prepared, and the reducing material and the paint are printed in the same size on the high-aramid-content flame-retardant fabric; the printing process for the flame-retardant fabric with high aramid fiber content in the current printing and dyeing industry is complicated in route, long in production period, high in cost and poor in quality, and the technical problem of printing aramid fiber fabric products is solved; the production cost is reduced, and the economic benefit of enterprises is improved.)

1. a production process for printing flame-retardant fabric with high aramid fiber content is characterized by comprising the following steps: the method comprises the following steps:

(1) Preferred dye compatibility selection test: through laboratory sample color simulation, selecting vat dyes, paints, additives and the like respectively to test the compatibility of the vat dyes and the reduction-resistant liquid paints to obtain the optimal dye compatibility; among the vat dyes selected are: the reduced black GM, the reduced blue VB, the reduced red F3B, the reduced khaki 2G, the reduced blue CLF, the reduced brown BR, the reduced yellow 3RT, the reduced olive T and the industrial olive green B, wherein the selected reduction-resistant liquid coating comprises the following components: coating black T-, coating navy T-, coating yellow T-, coating red T-E and coating green T-, and auxiliaries comprise printing super-soft adhesive WH, adhesive WH-3, chemical paste KG-1, thickening agent KG-301 and tap water;

(2) when the printing color paste is prepared, the types and the use amounts of vat dyes and coatings are selected according to the hand sample formulas of color pastes with different colors, and the same color paste with different color spots is prepared, wherein the use amount of the same color paste is adjustable according to the color sample depth and the color light of a user sample (see an embodiment for specific use amount parameters); meanwhile, the dosage of various vat dyes and paints in the same paste can be adjusted according to the requirements of users, so that the same paste has an anti-infrared curve and achieves the anti-infrared effect required by users;

(3) Uniformly stirring the prepared vat dye/pigment printing paste, and inputting the mixture into a printing machine to print the flame-retardant fabric with high aramid fiber content; the printing can be carried out by adopting a rotary screen or a flat screen, and the high aramid fiber content flame-retardant fabric can be simultaneously or respectively printed with various colors and patterns and combined patterns and colors;

Wherein, the vat dye dyes other flame-retardant fibers except the aramid fiber, and the paint dyes the aramid fiber; the selected paint is a preferable reduction-resistant liquid novel paint T series, is different from a conventional common paint, can not Be damaged by 50-80gL of NaOH (28-degree Be') and 60-90gL of sodium hydrosulfite Na2S2O4 in a reduction liquid under an alkaline condition, and ensures dyeing of aramid fibers;

(4) A baking process: after the textile printing is finished, baking is carried out, wherein the baking temperature and technological parameters are optimized to be 170-175 ℃, and the time is 80-90 seconds;

(5) a rapid steamer reduction process: mixing 350L of caustic soda NaOH (28-degree Be') with 150L of sodium hydrosulfite Na2S2O 450 kg and tap water to prepare 500L of reducing solution; steaming the fabric padded with the reducing liquid in a steaming box of a steamer, wherein the steam in the steaming box is superheated steam, the temperature of the steaming box is 130-135 ℃, the pressure is 0.15Mpa, and the time is 20-30 seconds;

(6) A first water washing procedure: washing the fabric in a plain washing tank with more than 3 grids at 40-45 ℃; oxidizing in an oxidizing solution;

(7) Soap boiling procedure: soaping in a soaping box with the temperature of 90-95 ℃ and the dosage of 25KG/300L of detergent, and keeping continuous feeding;

(8) and a second water washing procedure: washing the fabric in hot water with more than 3 lattices in a open washing tank, wherein the temperature of a first lattice is 90-95 ℃, the temperature of a second lattice and a third lattice is 80-85 ℃, and the water in the open washing tank flows backwards;

(9) And (3) drying: drying the washed fabric in a steam drying cylinder;

(10) a tentering step: the tentering width is determined according to the requirements of users;

(11) pre-shrinking process: and (3) pretreating the shrinkage rate of the fabric according to the requirements of a user, and inspecting the finished product after ensuring that the warp shrinkage rate and the weft shrinkage rate of the fabric meet the standard requirements of the user.

2. The production process for printing the flame-retardant fabric with the high aramid content as claimed in claim 1, which is characterized in that: in the process of the working procedures, the printed flame-retardant fabric with high aramid fiber content is a semi-finished product which is subjected to pretreatment and finishing.

Technical Field

the invention relates to the technical field of textile printing and dyeing, in particular to a printing process of a flame-retardant fabric with high aramid fiber content.

Background

Aramid fiber is called poly benzene two phenylene terephthalamide fiber entirely, and English is Aramid fiber, is a novel high-tech synthetic fiber, has super high strength, high modulus and high temperature resistance, acid and alkali resistance, light weight, insulation, ageing resistance, long life cycle and other excellent performances, the strength of the Aramid fiber is 5-6 times of that of a steel wire, the modulus of the Aramid fiber is 2-3 times of that of the steel wire or glass fiber, the toughness of the Aramid fiber is 2 times of that of the steel wire, the weight of the Aramid fiber is only about 1/5 of that of the steel wire, and the Aramid fiber is not decomposed and melted at the temperature of 560 degrees. It has good insulating property and ageing resistance, and has long life cycle. The discovery of aramid fibers is considered to be a very important historical process in the material world. The composite material is widely applied to the fields of composite materials, bulletproof products, building materials, special protective clothing, electronic equipment and the like.

in the textile field, aramid fibers can be made into body armor, bulletproof helmets, bulletproof vests, individual protective articles such as fire uniforms, fire masks, military and police training clothes, cutting-proof gloves and the like; in the civil field, the aramid fiber can be made into flame-retardant interior decorations and fabrics of airplanes, automobiles and high-speed rails, and can be made into fire blankets, escape ropes, flame-retardant curtains, bedspreads, pajamas, tablecloths, aprons, microwave oven gloves and the like. Aramid fiber is an important national defense and military material, in order to meet the requirements of modern wars, body armor of developed countries such as America, English and the like is made of aramid fiber, and the aramid fiber body armor and helmets are light in weight, so that the rapid response capability and the killing power of military are effectively improved. According to the report, the aramid products used for body armor, helmets and the like account for about 7-8% of the aramid fiber market application. Besides military applications, the material is also widely applied to various aspects of national economy such as aerospace, electromechanics, buildings, automobiles, sports goods and the like.

however, due to the non-coloring characteristic of the aramid fiber, at present, in the process of developing aramid fiber textile fabrics, the best method is to prepare colored aramid filaments by a stock solution coloring mode, but the color is single, and the prepared aramid fiber-containing fabrics or ready-made clothes have single color and large limitation, so that the fabrics or ready-made clothes are not widely applied enough and are not beneficial to the development of an aramid fiber industrial chain; the prior carrier dyeing method for printing and dyeing aramid fiber textile fabric has the problems of high production cost, poor reproducibility and unstable dyeing quality. For example, in patent number ZL201310542101.7 (printing method of aramid viscose blended camouflage printed fabric), the disclosed production process method is to sequentially perform pretreatment, dyeing, pigment printing and after-finishing on the aramid viscose blended fabric to obtain the aramid viscose blended camouflage printed fabric, and the printing method plays a positive role. However, the printing method still has certain defects, and the printing method needs to respectively carry out dyeing (vat dye priming), printing (pigment printing) and infrared-proof after-finishing on the aramid viscose blended fabric, and has the problems of complicated process route, long production period, high cost, unstable dyeing quality and the like. Therefore, a printing process of the flame-retardant fabric with high aramid fiber content needs to be researched and explored.

Disclosure of Invention

the invention aims to provide a printing process of a high-aramid-content flame-retardant fabric, aiming at the defects of the existing printing process technology of the high-aramid-content fabric, the printing process utilizes the existing dyes which are easily obtained in the market, selects a paint series of reducing-resistant liquid through optimizing and screening the paint, mixes the paint series with the reducing dye, and prints pattern patterns and colors on the high-aramid-content flame-retardant fabric by using the reducing dye and the reducing-resistant liquid paint in the same size, can print and print various colors and patterns (required by a user) on the high-aramid-content flame-retardant garment fabric made of primary-color aramid filaments, and can obtain different infrared-proof curves by optimizing and adjusting the using amounts of various reducing dyes and paints in a color paste formula to achieve the infrared-proof effect required by the user.

The technical scheme of the invention is as follows: a printing process for a flame-retardant fabric with high aramid fiber content mainly comprises the steps of dye optimization (compatibility of a reducing material and a reducing liquid resistant coating), color paste preparation (the same color of the reducing material and the coating), pattern (color) printing, fabric baking, rapid evaporation reduction, primary washing, soap boiling, secondary washing, drying, tentering, preshrinking and finished product inspection. When the high-aramid-content flame-retardant textile fabric is printed, a commercially available vat dye and a commercially available paint (wherein the paint is of a reduction liquid resistant type) are preferably selected, compatibility and proportioning performance tests are carried out on the vat dye and the reduction liquid resistant paint, the preparation ratio of the vat dye and the preferred paint is selected according to different colors, color pastes with different colors required during printing are prepared, the reduction material and the paint are printed in the same size on the high-aramid-content flame-retardant fabric, and the high-aramid-content flame-retardant textile fabric has an infrared-proof effect.

a production process for printing flame-retardant fabric with high aramid fiber content is characterized by comprising the following steps: the method comprises the following steps:

1. Preferred dye compatibility selection test: through laboratory sample color simulation, selecting vat dyes, paints, additives and the like respectively to test the compatibility of the vat dyes and the reduction-resistant liquid paints to obtain the optimal dye compatibility; among the vat dyes selected are: the reduced black GM, the reduced blue VB, the reduced red F3B, the reduced khaki 2G, the reduced blue CLF, the reduced brown BR, the reduced yellow 3RT, the reduced olive T and the industrial olive green B, wherein the selected reduction-resistant liquid coating comprises the following components: coating black T-, coating navy T-, coating yellow T-, coating red T-E and coating green T-, and auxiliaries comprise printing super-soft adhesive WH, adhesive WH-3, chemical paste KG-1, thickening agent KG-301 and tap water;

2. When the printing color paste is prepared, the types and the use amounts of vat dyes and coatings are selected according to the hand sample formulas of color pastes with different colors, and the same color paste with different color spots is prepared, wherein the use amount of the same color paste is adjustable according to the color sample depth and the color light of a user sample (see an embodiment for specific use amount parameters); meanwhile, the dosage of various vat dyes and paints in the same paste can be adjusted according to the requirements of users, so that the same paste has an anti-infrared curve and achieves the anti-infrared effect required by users;

3. uniformly stirring the prepared vat dye/pigment printing paste, and inputting the mixture into a printing machine to print the flame-retardant fabric with high aramid fiber content; the printing can be carried out by adopting a rotary screen or a flat screen, and the high aramid fiber content flame-retardant fabric can be simultaneously or respectively printed with various colors and patterns and combined patterns and colors;

wherein, the vat dye dyes other flame-retardant fibers except the aramid fiber, and the paint dyes the aramid fiber; the selected paint is a preferable reduction-resistant liquid novel paint T series, is different from a conventional common paint, and can not Be damaged by a reduction liquid (the content of NaOH [ 28-degree Be' ] in the general reduction liquid is 50-80gL, and the content of sodium hydrosulfite Na2S2O4 in the general reduction liquid is 60-90 gL) under an alkaline condition so as to ensure the dyeing of aramid fibers;

4. A baking process: after the textile printing is finished, baking is carried out, wherein the baking temperature and technological parameters are optimized to be 170-175 ℃, and the time is 80-90 seconds;

5. a rapid steamer reduction process: mixing 350L of caustic soda NaOH (28-degree Be') with 150L of sodium hydrosulfite Na2S2O 450 kg and tap water to prepare 500L of reducing solution; steaming the fabric padded with the reducing liquid in a steaming box of a steamer, wherein the steam in the steaming box is superheated steam, the temperature of the steaming box is 130-135 ℃, the pressure is 0.15Mpa, and the time is 20-30 seconds (specifically determined by the speed of the vehicle);

6. A first water washing procedure: washing the fabric in a plain washing tank with more than 3 grids at 40-45 ℃; oxidizing in an oxidizing solution;

7. soap boiling procedure: soaping in a soaping box with the temperature of 90-95 ℃ and the dosage of 25KG/300L of detergent, and keeping continuous feeding;

8. And a second water washing procedure: washing the fabric in hot water with more than 3 lattices in a open washing tank, wherein the temperature of a first lattice is 90-95 ℃, the temperature of a second lattice and a third lattice is 80-85 ℃, and the water in the open washing tank flows backwards;

9. and (3) drying: drying the washed fabric in a steam drying cylinder;

10. a tentering step: the tentering width is determined according to the requirements of users;

11. pre-shrinking process: and (3) pretreating the shrinkage rate of the fabric according to the requirements of a user, and inspecting the finished product after ensuring that the warp shrinkage rate and the weft shrinkage rate of the fabric meet the standard requirements of the user.

In the process of the working procedures, the printed flame-retardant fabric (fabric) with high aramid fiber content is a semi-finished product which is subjected to pretreatment and finishing.

the invention has the beneficial effects that: the invention utilizes the existing dyes which are easily obtained in the market, adopts different proportions of the vat dye and the coating to mix through the optimization of the coating, and optimizes the corresponding process parameters, successfully improves the defects of complicated process route, long production period, high cost and poor quality of the (anti-infrared) printing of the flame-retardant fabric with high aramid fiber content in the current printing and dyeing industry, and solves the technical problem of printing of aramid fiber fabric products; the production cost is reduced, and the economic benefit of enterprises is improved.

Drawings

The invention is further illustrated by the following figures and examples.

FIG. 1 is a schematic representation of the method steps of the present invention.

Detailed Description

in the method steps shown in fig. 1, 14 × 14 flame-retardant viscose/aramid (30D) thickened forest camouflage grid cloth is taken as an example; the method comprises the following specific steps:

1. And (3) dye compatibility selection: through laboratory hand sample color simulation, vat dyes, paints, auxiliaries and the like are respectively selected for color paste preparation of printing various color spots, and the selected vat dyes comprise: reduced black GM, reduced blue VB, reduced red F3B, reduced khaki 2G, reduced blue CLF, reduced brown BR, reduced yellow 3RT, reduced olive T and industrial olive green B, wherein the selected coatings comprise: coating black T-, coating navy T-, coating yellow T-, coating red T-E and coating green T-, and auxiliaries comprise printing super-soft adhesive WH, adhesive WH-3, chemical paste KG-1, thickening agent KG-301 and tap water;

2. The color matching formula of the prepared color spots is shown in the following table 1:

3. weighing, mixing and stirring uniformly according to the types and the use amounts of the dyes used for various color spot numbers on the table to prepare various color spot slurries, and then respectively inputting the color spot slurries into a rotary screen printing machine corresponding to the color spot numbers to print the flame-retardant fabric with high aramid fiber content; the adopted rotary screen printing machine can simultaneously print 6 different colors and patterns on the high aramid fiber content flame-retardant fabric according to the requirements of users;

4. a baking process: after the textile printing is finished, baking is carried out, wherein the baking temperature is 170-175 ℃, and the baking time is 80-90 seconds;

5. a rapid steamer reduction process: mixing 350L of caustic soda NaOH (28-degree Be') with Na2S2O 450 kg sodium hydrosulfite and 150L of tap water to prepare 500L of solution with the pH value of 8-9; steaming the fabric padded with the reducing liquid in a steaming box of a steamer, wherein the steam in the steaming box is superheated steam, the temperature of the steaming box is 130-135 ℃, the pressure is 0.15Mpa, and the time is 20-30 seconds (specifically determined by the speed of the vehicle);

6. a first water washing procedure: washing the fabric in a plain washing tank with water at 60-70 ℃ for more than 3 grids; oxidizing in an oxidizing solution;

7. Soap boiling procedure: soaping in a soaping box with the temperature of 90-95 ℃ and the dosage of 25KG/300L of detergent, and keeping continuous feeding;

8. and a second water washing procedure: washing the fabric in hot water with more than 3 lattices in a open washing tank, wherein the temperature of a first lattice is 90-95 ℃, the temperature of a second lattice and a third lattice is 80-85 ℃, and the water in the open washing tank flows backwards;

9. and (3) drying: drying the washed fabric, generally by adopting a steam drying cylinder mode;

10. a tentering step: the tentering width is determined according to the requirements of users;

11. Pre-shrinking process: and (3) preprocessing the shrinkage rate of the fabric according to the requirements of users, and performing finished product inspection and infrared-proof curve test after ensuring that the warp and weft shrinkage rates of the fabric meet the standard requirements of the users.

in the process of the working procedures, the printed high-aramid-content fabric is a semi-finished product which is subjected to pretreatment and finishing.