阅读说明：本技术 一种丝巾及其加工工艺 (Scarf and processing technology thereof ) 是由 张瑾 张保柴 刘敬英 王子璇 于 2021-09-01 设计创作，主要内容包括：本申请涉及纺织制品领域,具体公开了一种丝巾及其的加工工艺,其加工工艺包括以下步骤：棉质坯布前处理、预定型、染色、皂洗、烘干、开幅、定型和裁剪加工；其中染色步骤如下：在水中加入活性染料0.6-1.5%owf,匀染剂0.2-0.6g/L,固色剂0.2-0.8g/L,搅拌均匀后,将预定型后的棉质坯布放入水中,浴比为1：(10-14),然后升温至75-85℃,保温30-50min,将废水排出,然后水洗即可；其中,固色剂由二甲基二烯丙基氯化铵、乙二醇单烯丙基醚和丙烯酸共聚制得；本申请具有使棉质布料的色牢度较高,表面不易发黄的优点。(The application relates to the field of textile products, and particularly discloses a scarf and a processing technology thereof, wherein the processing technology comprises the following steps: pretreating cotton grey cloth, presetting, dyeing, soaping, drying, scutching, shaping and cutting; wherein the dyeing steps are as follows: adding 0.6-1.5% owf of reactive dye, 0.2-0.6g/L of leveling agent and 0.2-0.8g/L of color fixing agent into water, uniformly stirring, putting the cotton grey cloth after presetting into water, wherein the bath ratio is 1: (10-14), heating to 75-85 ℃, preserving heat for 30-50min, discharging the wastewater, and then washing with water; wherein the color fixing agent is prepared by copolymerizing dimethyl diallyl ammonium chloride, ethylene glycol monoallyl ether and acrylic acid; this application has the colour fastness that makes cotton cloth higher, and the difficult advantage that yellows in surface.)

1. The processing technology of the scarf is characterized by comprising the following steps of: pretreating cotton grey cloth, presetting, dyeing, soaping, drying, scutching, shaping and cutting;

wherein the dyeing steps are as follows: adding 0.6-1.5% owf of reactive dye, 0.2-0.6g/L of leveling agent and 0.2-0.8g/L of color fixing agent into water, uniformly stirring, putting the cotton grey cloth after presetting into water, wherein the bath ratio is 1: (10-14), heating to 75-85 ℃, preserving heat for 30-50min, discharging the wastewater, and then washing with water;

wherein the color fixing agent is prepared by copolymerizing dimethyl diallyl ammonium chloride, ethylene glycol monoallyl ether and acrylic acid.

2. The process for producing a silk scarf according to claim 1, wherein said process further comprises the steps of: the pretreatment of the cotton grey cloth comprises the following steps:

adding a cationic modifier into water to obtain a modifying solution, wherein the mass concentration of the cationic modifier is 0.5-2g/L, and then putting the cotton grey cloth into the modifying solution, wherein the bath ratio is 1: (8-15), then heating to 55-65 ℃, washing with water, and drying;

the cationic modifier is prepared from the following raw materials in parts by weight: 10-15 parts of fatty alcohol-polyoxyethylene ether, 7-10 parts of sodium dodecyl benzene sulfonate, 5-9 parts of sodium citrate, 8-10 parts of sodium hydroxide, 3-6 parts of sodium lignosulfonate and 150 parts of water 140-.

3. The process for producing a silk scarf according to claim 2, wherein said process further comprises the steps of: the addition amount of the color fixing agent is 0.4-0.6 g/L.

4. The process for producing a silk scarf according to claim 2, wherein said process further comprises the steps of: the mass concentration of the added cation modifier is 1-1.5 g/L.

5. The process for producing a silk scarf according to claim 1, wherein said process further comprises the steps of: the preparation method of the color fixing agent comprises the following steps: taking water as a reaction solvent, adding 4-6 parts by weight of dimethyldiallylammonium chloride, 1-2 parts by weight of ethylene glycol monoallyl ether and 0.4-0.7 part by weight of acrylic acid, then adding 0.02-0.04kg of ammonium persulfate under the protection of nitrogen, and reacting for 15-18h at 70 ℃.

6. The process for producing a silk scarf according to claim 2, wherein said process further comprises the steps of: the cation modifier is a cation quaternary ammonium salt high molecular polymer.

7. The process for producing a silk scarf according to claim 1, wherein said process further comprises the steps of: the presetting step comprises the following steps: pre-setting the pre-treated cotton grey cloth at the temperature of 160-170 ℃ and the speed of 20-25 m/min.

8. A scarf, characterized in that: the scarves are made by the process of any one of claims 1-7.

Technical Field

The application relates to the field of textile products, in particular to a scarf and a processing technology thereof.

Background

The scarf is a dress ornament which is worn around the neck of a woman. However, with the development of social aesthetics, the use of the scarves is becoming widespread, such as for bag decoration, hair accessories, and the like. Meanwhile, the scarves are made of various materials, including silk, hemp, cotton, wool, and the like. The cotton scarves are light and can well resist cold wind, and the cotton scarves are popular when the weather is cool.

When the cotton scarf is dyed, the fading phenomenon is easy to occur when the cotton scarf is cleaned due to the weak molecular acting force between the dye and the cotton fiber. Usually, soda ash is added as a fixing agent to fix color when cotton fiber is dyed, so as to reduce the fading degree of the cotton fiber. After dyeing, soaping and sizing the cotton cloth, cutting the cotton cloth, and making the scarf.

In view of the above-mentioned related technologies, the inventor believes that the soda ash cannot be completely removed after soaping the cotton cloth, the temperature required in the subsequent setting process is often high, and the residual soda ash can cause the surface of the cotton cloth to yellow and even become oxidized and brittle.

Disclosure of Invention

In order to enable the color fastness of cotton cloth to be high and the surface of the cotton cloth not to be prone to yellowing, the application provides a scarf and a processing technology thereof.

In a first aspect, the processing technology of the scarf provided by the application adopts the following technical scheme:

a processing technology of a scarf comprises the following steps: pretreating cotton grey cloth, presetting, dyeing, soaping, drying, scutching, shaping and cutting;

wherein the dyeing steps are as follows: adding 0.6-1.5% owf of reactive dye, 0.2-0.6g/L of leveling agent and 0.2-0.8g/L of color fixing agent into water, uniformly stirring, putting the cotton grey cloth after presetting into water, wherein the bath ratio is 1: (10-14), heating to 75-85 ℃, preserving heat for 30-50min, discharging the wastewater, and then washing with water;

wherein the color fixing agent is prepared by copolymerizing dimethyl diallyl ammonium chloride, ethylene glycol monoallyl ether and acrylic acid.

By adopting the technical scheme, the color fixing agent with a good color fixing effect can be prepared by copolymerizing dimethyl diallyl ammonium chloride, ethylene glycol monoallyl ether and acrylic acid, the ethylene glycol monoallyl ether can increase the hydrophilicity of molecules of the color fixing agent through ether bonds of the ethylene glycol monoallyl ether while exerting the color fixing effect, the acrylic acid is added, the hydrophilicity of the molecules of the color fixing agent can be increased by utilizing carboxyl groups on the acrylic acid, and the color fixing agent has good solubility in water and good contact with cotton fibers by increasing the hydrophilicity of the molecules of the color fixing agent, so that the color fixing effect is excellent; soda is not used as a color fixing agent, and detection results also prove that the color fixing agent does not cause the phenomenon that the silk scarf turns yellow and becomes crisp.

Preferably, the pretreatment of the cotton grey cloth comprises the following steps:

adding a cationic modifier into water to obtain a modifying solution, wherein the mass concentration of the cationic modifier is 0.5-2g/L, and then putting the cotton grey cloth into the modifying solution, wherein the bath ratio is 1: (8-15), then heating to 55-65 ℃, washing with water, and drying;

the cationic modifier is prepared from the following raw materials in parts by weight: 10-15 parts of fatty alcohol-polyoxyethylene ether, 7-10 parts of sodium dodecyl benzene sulfonate, 5-9 parts of sodium citrate, 8-10 parts of sodium hydroxide, 3-6 parts of sodium lignosulfonate and 150 parts of water 140-.

By adopting the technical scheme, the cationic modifier is prepared, so that the cationic modification of the cotton fiber is better, the fiber surface of the cotton fiber is provided with more positive charges, the adsorption force between the cotton fiber and the active dye is stronger, the fatty alcohol-polyoxyethylene ether and the sodium dodecyl benzene sulfonate can increase the permeation of the cationic modifier, and the contact between the cationic modifier and the cotton fiber is more excellent; when other parameters are taken within the range, the experimental result is not obviously influenced.

Preferably, the addition amount of the color fixing agent is 0.4-0.6 g/L.

By adopting the technical scheme, the color fixing agent is too little, the color fixing effect is insufficient, and when the color fixing agent is too much, the color fastness to washing is reduced to some extent.

Preferably, the mass concentration of the cation modifier is 1-1.5 g/L.

By adopting the technical scheme, when the addition amount of the cationic modifier is in the range, the rubbing color fastness and the washing color fastness of the cationic modifier reach 4 grades, which are optimal values.

Preferably, the preparation method of the color fixing agent comprises the following steps: taking water as a reaction solvent, adding 4-6 parts by weight of dimethyldiallylammonium chloride, 1-2 parts by weight of ethylene glycol monoallyl ether and 0.4-0.7 part by weight of acrylic acid, then adding 0.02-0.04kg of ammonium persulfate under the protection of nitrogen, and reacting for 15-18h at 70 ℃.

By adopting the technical scheme, the three monomers are copolymerized according to a certain proportion by taking ammonium persulfate as an initiator to obtain the color fixing agent; when the preparation parameters and the addition amount of the raw materials are in the range, the experimental results are not obviously influenced.

Preferably, the cationic modifier is a cationic quaternary ammonium salt high molecular polymer.

By adopting the technical scheme, the cation adopts a commercially available cation quaternary ammonium salt high molecular polymer, the color fixing agent is prepared by the method, and the friction color fastness and the washing color fastness of the prepared silk scarf can reach level 4.

Preferably, the pre-setting step is as follows: pre-setting the pre-treated cotton grey cloth at the temperature of 160-170 ℃ and the speed of 20-25 m/min.

Through adopting above-mentioned technical scheme, the presetting parameter all can obtain better presetting effect under this scope, can not cause the influence to the performance of the scarf of this application preparation.

In a second aspect, the present application provides a scarf, which adopts the following technical scheme:

a scarves produced by the process of any one of claims 1-7.

In summary, the present application has the following beneficial effects:

1. through copolymerizing dimethyl diallyl ammonium chloride, ethylene glycol allyl ether and acrylic acid three, can make the better fixing agent of fixation effect, ethylene glycol allyl ether is in exerting its fixation effect, can increase the hydrophilicity of fixing agent molecule through the ether linkage of self, add acrylic acid simultaneously, utilize the carboxyl on the acrylic acid, can increase the hydrophilicity of fixing agent molecule, through increasing its hydrophilicity, it is better to make the solubility of fixing agent molecule in aqueous, and good with cotton fiber's contact nature, it is excellent to make its fixation effect, and after drying, the condition of discolouring does not appear.

2. The cationic modifier and the color fixing agent prepared by the method are adopted in the application, so that the friction color fastness and the washing color fastness of the cotton silk scarf can reach 5 levels at the same time, the appearance reaches 1 level, and the phenomena of yellowing, brittleness and the like can not be generated after drying.

Detailed Description

The present application will be described in further detail with reference to examples.

Raw materials

The leveling agent in the application adopts alkyl polyoxyethylene ether; the soaping agent adopts ethylenediamine di-o-phenyl sodium acetate; the cation modifier adopts cation quaternary ammonium salt high molecular polymer, and the manufacturer is constant auxiliary agent company of Dongguan city; reactive dyes: the model is reactive red M-88; the rest raw materials are all commercial products.

Preparation example

Preparation example 1

A cationic modifier is prepared by the following steps:

12kg of fatty alcohol-polyoxyethylene ether, 8kg of sodium dodecyl benzene sulfonate, 9kg of sodium hydroxide, 4kg of sodium citrate and 7kg of sodium lignin sulfonate are added into 145kg of water and stirred until dissolved, thus obtaining the cationic modifier.

Preparation example 2

The color fixing agent is prepared by the following steps:

adding 5kg of dimethyldiallylammonium chloride, 1.5kg of ethylene glycol monoallyl ether and 0.5kg of acrylic acid into 7kg of distilled water, stirring the mixture under the nitrogen atmosphere until the mixture is dissolved, then adding 0.03kg of ammonium persulfate, heating the mixture to 70 ℃, stirring the mixture for reaction for 16 hours, then dropwise adding acetone until the precipitate is not increased any more, stopping dropwise adding, then carrying out centrifugal separation, and drying the mixture for 2 hours at 60 ℃ to obtain the color fixing agent.

Examples

Example 1

A processing technology of a scarf comprises the following specific steps:

1) pretreatment of cotton grey cloth: adding a cationic modifier into water to obtain a modifying solution, wherein the mass concentration of the cationic modifier is 0.5g/L, and then putting the cotton grey cloth into the modifying solution, wherein the bath ratio is 1: 8, heating to 60 ℃, washing with water, and drying;

2) presetting: pre-setting the pre-treated cotton grey cloth by a pre-setting machine at the pre-setting temperature of 160 ℃ and the vehicle speed of 25 m/min;

3) dyeing: adding 1.0% owf of reactive dye, 0.4g/L of leveling agent and 0.2g/L of color fixing agent into water, uniformly stirring, putting the cotton gray fabric subjected to presetting into the water, wherein the bath ratio is 1: 10, heating to 80 ℃, preserving heat for 40min, discharging the wastewater, and then washing;

4) soaping: adding a soaping agent into water to prepare a soaping solution, wherein the mass concentration of the soaping agent is 2g/L, then putting the dyed cotton gray fabric into the soaping solution for soaping, controlling the bath ratio to be 1:15 and the temperature to be 75 ℃, keeping the temperature for 10min, and washing for 5min after soaping;

5) drying: drying the soap-washed cotton grey cloth by a dryer at the drying temperature of 85 ℃;

6) scutching: scutching the dried cotton grey cloth by a scutching machine;

7) shaping: setting the cotton grey cloth after scutching on a setting machine, wherein the setting temperature is 95 ℃, and the speed is 25 m/min;

8) cutting and processing: cutting the cotton grey cloth obtained in the step 7) according to a set drawing, and then performing overlocking and ironing to obtain the silk scarf.

Wherein, the cation modifier is prepared by the preparation example 1; the fixing agent is prepared from preparation example 2.

Example 2

A process for preparing a silk scarf is different from that in the example 1 in that the mass concentration of a cation modifier in the step 1) is 1g/L, and the rest steps are the same as the example 1.

Example 3

A process for preparing a scarf, which is different from the process of example 1 in that the mass concentration of a cationic modifier in the step 1) is 1.5g/L, and the rest of the steps are the same as those in the step 1.

Example 4

A process for preparing a scarf, which is different from the process of example 1 in that the mass concentration of a cationic modifier in the step 1) is 2g/L, and the rest of the steps are the same as those in the step 1.

Example 5

The difference between the process technology of a scarf and the process technology of the embodiment 3 is that the mass concentration of the color fixing agent in the step 3) is 0.4g/L, and the rest steps are the same as the step 1.

Example 6

The difference between the process technology of a scarf and the process technology of the embodiment 3 is that the mass concentration of the color fixing agent in the step 3) is 0.6g/L, and the rest steps are the same as the step 1.

Example 7

The difference between the process technology of a scarf and the process technology of the embodiment 3 is that the mass concentration of the color fixing agent in the step 3) is 0.8g/L, and the rest steps are the same as the step 1.

Example 8

A process for preparing a silk scarf is different from that in the example 1 in that a cation modifier in the step 1) is a commercial cation quaternary ammonium salt high molecular polymer, and the rest steps are the same as the example 1.

Comparative example

Comparative example 1

A process for producing a silk napkin, which is different from that of example 1 in that the amount of the cationic modifier added in step 1) is 0, and the rest of the steps are the same as those of example 1.

Comparative example 2

The difference between the processing technology of a scarf and the processing technology of the scarf in the embodiment 1 is that the addition amount of the color fixing agent in the step 1) is 0, and the other steps are the same as the step 1.

Comparative example 3

A process for processing a silk scarf is different from the process of example 1 in that the addition amount of dimethyl diallyl ammonium chloride of the color fixing agent in the step 1) is 0 during preparation, corresponding proportion of distilled water and ammonium persulfate is reduced, and the rest steps are the same as the process of example 1.

Comparative example 4

A process for processing a scarf is different from that in example 1 in that the addition amount of ethylene glycol monoallyl ether in the color fixing agent in step 1) is 0 during preparation, corresponding proportion of distilled water and ammonium persulfate is reduced, and the rest steps are the same as those in example 1.

Comparative example 4

The difference between the process technology of a scarf and the example 1 is that the addition amount of acrylic acid of the color fixing agent in the step 1) is 0 during preparation, the corresponding proportion of distilled water and ammonium persulfate is reduced, and the other steps are the same as the example 1.

Performance test

Detection method/test method

Scarves were prepared according to the scarves processing techniques of examples 1-8 and comparative examples 1-5 and then tested according to the following test methods, the test procedures of which are shown in table 1.

Color fastness to rubbing: the color fastness of the color is detected according to the method in GB/T3920-2008, and the higher the grade number is, the better the color fastness to rubbing is.

Color fastness to washing: the color fastness of the product is detected according to the method in GB/T3921-2008, and the higher the grade number is, the better the color fastness to washing is.

Appearance: the appearance of the knitted fabric is scored according to the method in GB T22846-2009 knitted fabric (four-component system) appearance inspection, and the higher the score is, the worse the surface appearance is.

TABLE 1 test results of examples 1 to 8 and comparative examples 1 to 5

	Colour fastness to rubbing	Color fastness to washing	Whether color changes after drying	Appearance of the product
					Example 1	Grade 3	Grade 3	Whether or not	2 is divided into
Example 2	Grade 3	4 stage	Whether or not	2 is divided into
					Example 3	4 stage	4 stage	Whether or not	2 is divided into
Example 4	4 stage	4 stage	Whether or not	1 minute (1)
					Example 5	Grade 5	Grade 5	Whether or not	1 minute (1)
Example 6	Grade 5	Grade 5	Whether or not	1 minute (1)
					Example 7	Grade 5	Grade 3	Whether or not	1 minute (1)
Example 8	4 stage	4 stage	Whether or not	1 minute (1)
					Comparative example 1	Stage 2	Stage 2	Whether or not	3 points of
Comparative example 2	Stage 2	Stage 2	Whether or not	3 points of
					Comparative example 3	Stage 2	Stage 2	Whether or not	3 points of
Comparative example 4	Stage 2	Grade 3	Whether or not	3 points of
					Comparative example 5	Stage 2	Grade 3	Whether or not	3 points of

In combination with the detection data of example table 1, it can be seen that the scarves prepared by the method have both rubbing fastness and washing fastness of above grade 3, the appearances of the scarves are 1-2 minutes, and no color change occurs after drying.

As can be seen from the test data of example 1 and examples 2-4, increasing the addition amount of the cationic modifier increases both the color fastness to rubbing and the color fastness to washing; as can be seen from the test data of example 3 and examples 5-7, the rubbing fastness of the scarves remained at 5 grade with the increasing amount of the fixing agent, but the washing fastness showed a decreasing trend when the increasing amount of the fixing agent reached 0.8 g/L.

As can be seen from example 1 and comparative examples 1-2, the crocking fastness and washfastness of the scarves were reduced when the cationic modifier or the dye fixative was added alone, indicating a synergistic effect.

The hydrophilicity of the color fixing agent molecules can be increased by the ethylene glycol monoallyl ether and the acrylic acid, the color fixing agent molecules can be well dissolved and dispersed in the aqueous solution, the ethylene glycol monoallyl ether also has a color fixing effect, and if one of the ethylene glycol monoallyl ether and the acrylic acid is lacked, the color fixing effect of the color fixing agent is reduced. From the test data of example 1 and comparative examples 3-5, it can be seen that in the preparation of the dye-fixing agent, the addition of two of dimethyldiallylammonium chloride, ethylene glycol monoallyl ether and acrylic acid reduced both the crocking and washing fastness, indicating that the effect of the dye-fixing agent is through the synergistic effect of the three comonomers.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.