Dyeing post-treatment method, application and preparation method of three-proofing fabric

Abstract

The invention provides a dyeing post-treatment method and application and a preparation method of a three-proofing fabric. The dyeing post-treatment method comprises the step of carrying out dipping treatment on the dyed and cleaned fabric by utilizing a three-proofing treatment solution, wherein the three-proofing treatment solution comprises a waterproof agent and an antifouling agent. Water resistance, oil resistance, stain resistance and easy cleaning can be completed in dyeing post-treatment, the treatment agent is firmly combined with the fabric, the performance retention time can be prolonged, the performance is superior to the coating treatment level, and meanwhile extra processing time does not need to be increased.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of fabric dyeing, and particularly relates to a dyeing post-treatment method and application and a preparation method of a three-proofing fabric. BACKGROUND

[0002] As a kind of synthetic fiber with excellent performance, polyester is widely used in the field of textile shoes and clothes due to its high strength, excellent wear resistance, good wrinkle resistance, fast drying and other basic properties, and becomes an important raw material for making various clothes, shoe materials and home textile products. With the continuous improvement of the functional requirements of textile shoes and clothes, waterproof performance has become a key indicator, and the application scenarios of waterproof polyester fabric are gradually expanding.

[0003] At present, the waterproof treatment of polyester fabric mainly adopts:

[0004] 1) Coating or dipping process, which blocks the penetration of water by forming a waterproof coating on the surface of the fabric. However, such waterproof coating is mostly fluorine or silicon-based material, which has poor compatibility with other functional additives, making it difficult to further endow the fabric with additional properties such as stain resistance and easy cleaning after completing the waterproof treatment. Even if secondary coating or dipping treatment is attempted, the combination between coatings is often weak, and the distribution of functional components is uneven, resulting in unsatisfactory stain resistance and limited improvement in easy cleaning performance, which cannot meet the comprehensive demand for waterproof and oil-proof fabric with easy cleaning.

[0005] 2) Fiber modification technology, which introduces functional groups into the polyester molecular chain or fiber structure through grafting copolymerization, blending spinning and other methods, so as to realize long-term improvement of waterproof, stain-resistant and other properties; but this method needs to adjust the fiber production process deeply, which not only significantly increases the raw material cost and equipment investment, but also greatly prolongs the production cycle and makes the process stability difficult to control, which is not conducive to large-scale industrial production and popularization and application.

[0006] Therefore, how to simultaneously improve the waterproof, oil-proof, stain-resistant and easy-to-clean performance of polyester fabric in a simple, low-cost and industrialized production manner while ensuring its original high strength, wear resistance and other basic properties has become a technical problem to be solved in the current textile industry. SUMMARY

[0007] In view of the deficiencies of the prior art, the purpose of the present application is to provide a dyeing post-treatment method and application and a preparation method of a three-proofing fabric.

[0008] To achieve this purpose, the technical scheme adopted by the present application is as follows:

[0009] On the one hand, the present application provides a dyeing post-treatment method, which comprises: immersing the fabric after dyeing and cleaning with a three-proofing treatment liquid, wherein:

[0010] The waterproof agent and the antifouling agent are included in the tri-proof treatment liquid.

[0011] The application can improve the waterproof, oil-proof and antifouling performance of the fabric, reduce the cleaning difficulty, improve the cleaning effect, and the protection effect is durable and not affected by time by introducing waterproof and antifouling treatment in the dyeing post-treatment process.

[0012] In the application, the functional protection and easy-to-clean treatment process of the fabric are integrated with the dyeing post-treatment process, without the need to increase additional processing time, and the waterproof, oil-proof, antifouling and easy-to-clean can be completed in the dyeing post-treatment process, the treatment agent is firmly combined with the fabric, and the performance maintenance time can be prolonged.

[0013] Preferably, the waterproof agent includes a fluorine-free waterproof agent, preferably including ZJ221 (3M PM-3705) and / or ZJ239 (3M 2688), and further preferably including ZJ239 and ZJ221. TM PM-3705) and / or ZJ239 (3M 2688), and further preferably including ZJ239 and ZJ221.

[0014] The preferred waterproof agent of the application includes ZJ221, which can be in full contact with the fabric, and can promote the cross-linking reaction between the active ingredients in the treatment liquid and the fabric, so that it can be firmly adsorbed on the fabric fibers, not only making the fabric have good waterproofness, but also having high water washing durability.

[0015] In the application, ZJ239 not only has good waterproofness, but also has good oil-proof and antifouling properties, and when used together with ZJ221, the fabric can not only obtain waterproof, oil-proof and antifouling effects, but also has high water washing durability.

[0016] Preferably, the mass ratio of ZJ239 and ZJ221 is (5-8):1, which can be 5:1, 5.2:1, 5.5:1, 5.6:1, 5.8:1, 6:1, 6.2:1, 6.5:1, 6.8:1, 7:1, 7.2:1, 7.5:1, 7.8:1, 8:1, etc.

[0017] By using ZJ239 and ZJ221 together, the application can give the fabric excellent waterproof, oil-proof and antifouling effects, if the addition amount of ZJ239 is too large, the oil-proof performance of the fabric is poor, and if the addition amount of ZJ239 is small, the fabric cannot obtain excellent waterproof performance.

[0018] Preferably, the antifouling agent includes ZJ320 NR-99 (Hangzhou Yanlin Technology Co., Ltd.).

[0019] Preferably, the concentration of the water-proofing agent in the three-proofing treatment liquid is 5-10 g / L, for example, 5 g / L, 6 g / L, 7 g / L, 8 g / L, 9 g / L, 10 g / L, etc.

[0020] Preferably, the concentration of the water-proofing agent in the three-proofing treatment liquid is 5-10 g / L, for example, 5 g / L, 6 g / L, 7 g / L, 8 g / L, 9 g / L, 10 g / L, etc.

[0021] In the present application, if the amount of the water-proofing agent or the stain-proofing agent is low, the water-proofing, oil-proofing and stain-proofing performance of the fabric will be poor; if the amount of the water-proofing agent or the stain-proofing agent is high, the water-washing durability of the fabric will be reduced, and the fabric will also become white and the hand feeling will be poor.

[0022] Preferably, the temperature of the impregnation treatment is 40-60℃, for example, 40℃, 42℃, 45℃, 48℃, 50℃, 52℃, 55℃, 58℃, 60℃, etc., and the time is 30-60 min, for example, 30 min, 35 min, 40 min, 45 min, 50 min, 55 min, 60 min, etc.

[0023] If the temperature of the impregnation is too low or too high, the water-proofing, oil-proofing and stain-proofing performance of the fabric will be poor.

[0024] In the second aspect, the present application provides an application of the post-treatment method in the preparation of the three-proofing fabric.

[0025] In the third aspect, the present application provides a preparation method of a three-proofing fabric, which comprises the following steps: performing setting, oil removal, dyeing, cleaning, post-treatment and drying on a grey fabric to obtain the three-proofing fabric.

[0026] Preferably, the post-treatment method is the post-treatment method in the first aspect.

[0027] The present application shortens the additional processing time through the integrated process, and the water-proofing, stain-proofing and easy cleaning performance of the fabric provided by the present application is superior to the coating treatment level.

[0028] The three-proofing fabric obtained by the present application meets the requirements of water-proofing, oil-proofing, stain-proofing and easy cleaning, and fully meets the market demand.

[0029] The preparation method of the present application can be applied to polyester fabric.

[0030] The present application also provides a dyeing method of polyester fabric or a method for improving the water-proofing, stain-proofing and cleaning performance of polyester fabric, which comprises the following steps: performing setting, oil removal, dyeing, cleaning, post-treatment and drying on a grey fabric to obtain the three-proofing fabric.

[0031] The post-processing method is the post-processing method of the first aspect.

[0032] In the present application, the preparation method, or the method comprises:

[0033] S1. Embodiment: using a finishing machine to perform surface shaping treatment on the gray fabric, so that the fabric surface is fully unfolded, preferably the shaping temperature is 180-220°C, for example 180°C, 185°C, 190°C, 195°C, 200°C, 205°C, 210°C, 215°C, 220°C, etc., preferably the fabric feeding speed is 10-30 m / min, for example 15 m / min, 18 m / min, 20 m / min, 22 m / min, 24 m / min, 25 m / min, 26 m / min, 28 m / min, 30 m / min, etc.;

[0034] S2. Oil removal: using a washing machine to add 2% oil removal agent to remove oil stains on the surface of the fabric, which is beneficial to subsequent dyeing, preferably the oil removal temperature is 80-100°C, for example 80°C, 85°C, 90°C, 95°C, 100°C, etc., preferably the fabric feeding speed is 10-30 m / min, for example 15 m / min, 18 m / min, 20 m / min, 22 m / min, 24 m / min, 25 m / min, 26 m / min, 28 m / min, 30 m / min, etc.;

[0035] S3. Dyeing: preparing a dyeing solution according to different colors and setting the bath ratio for dyeing, preferably the dyeing temperature is 120-140°C, for example 120°C, 125°C, 130°C, 135°C, 140°C, etc., preferably the dyeing time is 20-30 min, for example 20 min, 22 min, 24 min, 25 min, 26 min, 28 min, 30 min, etc., preferably the pH value of the dyeing solution is between 4-7, for example 4, 4.5, 5, 5.5, 6, 6.5, 7, etc.;

[0036] S4. Cleaning surface color: adding hydrosulfite 2-4 g / L, for example 2 g / L, 2.5 g / L, 3 g / L, 3.5 g / L, 4 g / L, etc., sodium hydroxide 1-3 g / L, for example 1 g / L, 1.5 g / L, 2 g / L, 2.5 g / L, 3 g / L, etc., buffer acid 0.1-1 g / L, for example 0.1 g / L, 0.2 g / L, 0.4 g / L, 0.5 g / L, 0.6 g / L, 0.8 g / L, 1 g / L, etc., to the cleaning liquid, and cleaning the dyed fabric to remove the surface color, preferably the cleaning temperature is 20-30 min, for example 20 min, 22 min, 24 min, 25 min, 26 min, 28 min, 30 min, etc.

[0037] S5. Post-treatment: adding water repellent 5-10 g / L and anti-fouling agent 1-5 g / L in deionized water to prepare a three-proofing treatment liquid, and immersing the dyed and cleaned fabric in the three-proofing treatment liquid, preferably the immersion temperature is 40-60℃, and the time is 30-60 min.

[0038] S6. Dehydration: removing excess water from the fabric.

[0039] S7. Fabric arrangement: re-arranging the fabric to keep the processing surface flat and free of twisting and rolling.

[0040] S8. Forming: fabric product forming, controlling the width and weight, etc.

[0041] In the present application, the embryo setting, oil removal, dyeing, cleaning, dehydration, fabric arrangement and forming are all conventional methods, and the present application does not make excessive limitations, any method that can achieve the purpose of the present application can be applied to the present application, and the present application will not be described in detail.

[0042] Compared with the prior art, the present application has the following beneficial effects:

[0043] (1) In the present application, water-repellent, oil-repellent, anti-fouling and easy-to-clean can be completed in the dyeing post-treatment, the treatment agent is firmly combined with the fabric, and the performance maintenance time can be prolonged.

[0044] (2) The present application integrates the fabric water-repellent, oil-repellent, anti-fouling and easy-to-clean treatment process with the dyeing post-treatment process, without the need to increase additional processing time.

[0045] (3) The water-repellent, oil-repellent, anti-fouling, easy-to-clean ability of the fabric provided by the present application is superior to the coating treatment level. DETAILED DESCRIPTION

[0046] The technical solutions of the present application are further illustrated by specific embodiments. Those skilled in the art should understand that the embodiments are only used to help understand the present application, and should not be regarded as specific limitations on the present application.

[0047] Unless otherwise specified, the raw materials involved in the following specific embodiments of the present application are all conventional materials in the art, and can be purchased through commercially available products. Some raw material information is as follows:

[0048] Oil removal agent: purchased from Jinjiang Nan Kai New Material Technology Co., Ltd.;

[0049] Chelating dispersant: purchased from Jinjiang Nan Kai New Material Technology Co., Ltd.;

[0050] Disperse blue: SHW-EBLNN, Sato Source Dye Co., Ltd.;

[0051] Disperse violet: HFRL, purchased from Zhejiang Longsheng Dye Chemical Co., Ltd.;

[0052] Disperse red: NP-5B, purchased from Zhejiang Longsheng Dye Chemical Co., Ltd.;

[0053] Disperse orange: NP-4R, purchased from Zhejiang Longsheng Dye Chemical Co., Ltd.;

[0054] Disperse blue: NP-2G, purchased from Zhejiang Longsheng Dye Chemical Co., Ltd.;

[0055] Dye T64: purchased from Zhejiang Longsheng Dye Chemical Co., Ltd.;

[0056] T190 yellow: purchased from Shaoxing Rongyue Chemical Co., Ltd.;

[0057] T14: purchased from Zhejiang Longsheng Dye Chemical Co., Ltd.;

[0058] Disperse leveling agent: SKR-P830, purchased from Quanzhou Silkao Textile Auxiliaries Co., Ltd.;

[0059] Waterproof agent ZJ239: purchased from 3M 2688;

[0060] Waterproof agent ZJ221: purchased from 3M TM PM-3705;

[0061] Stain repellent agent ZJ320 NR-99: purchased from Hangzhou Yanlin Technology Co., Ltd.

[0062] Example 1

[0063] This embodiment provides a method for preparing a three-proofing fabric from a polyester gray fabric (100g D798 polyester dyeing (white) card number: F2503010741), as follows:

[0064] (1) Embryo: The cloth is shaped at high temperature 200℃ x 25 m / min to keep the cloth surface flat;

[0065] (2) Oil removal: using a washing machine, 2% oil removal agent is used to remove surface oil stains, oil removal temperature 90℃, cloth feeding speed 25 m / min;

[0066] (3) Dyeing: adding disperse blue lotus SHW-EBLNN 0.0021 g / L, disperse purple HFRL 0.001 g / L, disperse leveling agent SKR-P830 0.5 g / L, citric acid 1 g / L, chelating dispersant 1 g / L, bath ratio 10, pH = 6.5~7, 130℃ for 30 min;

[0067] (4) Washing (washing surface float color): adding sodium hydrosulfite 3 g / L, citric acid 0.5 g / L, sodium hydroxide 2 g / L, 70℃ for 20 min, and washing off the surface float color;

[0068] (5) Post-treatment: adding waterproof agent ZJ239 8 g / L, waterproof agent ZJ221 1 g / L and antifouling agent ZJ320 NR-99 2 g / L in deionized water, pH value between 4~5, 45℃ for 30 min after the cylinder is taken out;

[0069] (6) Dehydration, cloth sorting and setting.

[0070] Example 2-5

[0071] The embodiment provides a method for preparing a three-proofing fabric from a polyester gray cloth.

[0072] The difference from example 1 is that in the embodiment, the concentration of waterproof agent ZJ239 is changed, so that the ratio of ZJ239:ZJ221 is 5:1 (example 2), 6:1 (example 3), 4:1 (example 4), and 9:1 (example 5).

[0073] Example 6-9

[0074] The embodiment provides a method for preparing a three-proofing fabric from a polyester gray cloth.

[0075] The difference from example 1 is that in the embodiment, the concentration of ZJ320 NR-99 is 1 g / L (example 6), 5 g / L (example 7), 0.5 g / L (example 8), and 7 g / L (example 9).

[0076] Example 10-13

[0077] The embodiment provides a method for preparing a three-proofing fabric from a polyester gray cloth.

[0078] The difference from Example 1 is that, in the present example, the ratio of ZJ239:ZJ221 is kept unchanged, and the amount of the two is changed so that the total concentration of the waterproofing agent is 5 g / L (Example 10), 10 g / L (Example 11), 3 g / L (Example 12), and 12 g / L (Example 13).

[0079] Example 14

[0080] The present example provides a method for preparing a three-proofing fabric from a polyester gray fabric.

[0081] The difference from Example 1 is that, in the present example, the waterproofing agents ZJ239 and ZJ221 are replaced with Texnology® MS330 fluorine-free waterproofing agent, 8 g / L.

[0082] Example 15

[0083] The present example provides a method for preparing a three-proofing fabric from a polyester gray fabric.

[0084] The difference from Example 1 is that, in the present example, the stain-proofing agent is replaced with DuPont OLEOPHOBOL CP-SLA three-proofing finishing agent, 2 g / L.

[0085] Example 16

[0086] The present example provides a method for preparing a three-proofing fabric from a polyester gray fabric (100 g D798-03 polyester dyeing (khaki green) card number: F2504070615), as follows:

[0087] (1) Embryo setting: the gray fabric is set at high temperature 190℃ x 15 m / min to keep the fabric surface flat;

[0088] (2) Oil removal: a washing machine is used, 2% oil removal agent is used to remove oil stains on the surface of the fabric, the oil removal temperature is 80℃, and the fabric feeding rate is 15 m / min;

[0089] (3) Dyeing: add dye Disperse Red NP-5B 0.025%, Disperse Orange NP-4R 0.285%, Disperse Blue NP-2G 0.14%, Disperse Levelling Agent GS301 0.5 g / L, citric acid 0.5 g / L, bath ratio 10, pH 4~5, 130℃ for 30 min;

[0090] (4) Washing (washing surface float color): add sodium hydrosulfite 3 g / L, citric acid 0.5 g / L, sodium hydroxide 2 g / L, 70℃ for 20 min, and wash off the surface float color;

[0091] (5) Post-treatment: Add waterproofing agent ZJ239 8 g / L, waterproofing agent ZJ221 1 g / L, and antifouling agent ZJ320 NR-992 g / L, with pH value between 4-5, and keep the temperature at 45°C for 30 min before taking out of the cylinder;

[0092] (6) Dehydration, cloth sorting, and setting.

[0093] Example 17

[0094] This example provides a method for preparing a three-proofing fabric from a polyester gray fabric (100g D798F-03 polyester dyeing (fluorescent light green) card number: F2504070614), as follows:

[0095] (1) Embryo setting: The gray fabric is set at high temperature 190°C x 15 m / min to keep the fabric surface flat;

[0096] (2) Oil removal: Use a washing machine with 2% oil removal agent to remove surface oil stains, with oil removal temperature 80°C and cloth feeding speed 15 m / min;

[0097] (3) Dyeing: Add dyes T64 0.0045%, T190 yellow 0.0015%, T14 0.007%, dispersion leveling agent GS301 0.5 g / L, citric acid 0.5 g / L, bath ratio 10, pH 4-5, and keep the temperature at 130°C for 30 min;

[0098] (4) Washing (to remove surface float color): Add sodium hydrosulfite 3 g / L, citric acid 0.5 g / L, and sodium hydroxide 2 g / L, keep the temperature at 70°C for 20 min, and then wash away the surface float color;

[0099] (5) Post-treatment: Add waterproofing agent ZJ239 8 g / L, waterproofing agent ZJ221 1 g / L, and antifouling agent ZJ320 NR-992 g / L, with pH value between 4-5, and keep the temperature at 45°C for 30 min before taking out of the cylinder;

[0100] (6) Dehydration, cloth sorting, and setting.

[0101] Comparative Example 1

[0102] This comparative example provides a method for preparing a three-proofing fabric from a polyester gray fabric.

[0103] The difference from Example 1 is that in this comparative example, no waterproofing agent ZJ239 is added.

[0104] Comparative Example 2

[0105] This comparative example provides a method for preparing a three-proofing fabric from a polyester gray fabric.

[0106] The difference from Example 1 is that, in the present comparative example, no waterproofing agent ZJ221 is added.

[0107] Comparative Example 3

[0108] The present comparative example provides a method for preparing a three-proofing fabric from a polyester gray fabric.

[0109] The difference from Example 1 is that, in the present comparative example, no waterproofing agent ZJ320 NR-99 is added.

[0110] Comparative Example 4

[0111] The present comparative example provides a method for preparing a fabric from a polyester gray fabric.

[0112] The difference from Example 1 is that, in the present comparative example, no waterproofing agent and no stain-proofing agent are added in the post-treatment, and the fabric is only taken out of the cylinder after being kept in warm water at 45℃ for 30 min.

[0113] Performance test

[0114] The fabric provided by Examples 1-17 and Comparative Examples 1-4 is subjected to performance test, and the method is as follows:

[0115] (1) The test is performed according to the detection standard of GB / T30159.1-2013, and the stain resistance grade of the fabric to peanut oil, dark soy sauce, fruit juice and milk is tested.

[0116] (2) Easy stain removal: the test is performed according to the detection standard of FZ / T 01118-2012 “Textiles - Determination of the antistaining properties - Easy stain removal method”.

[0117] The test results are as follows:

[0118] Table 1

[0119]

[0120] As shown in Table 1, the fabric obtained by the method provided by the present application is resistant to stains (water-based and oil-based) and easy to clean, and has a long performance retention time.

[0121] As shown by the comparison between Example 1 and Examples 2-13, in the present application, when the concentration of the waterproofing agent is 5-10 g / L, the concentration of the stain-proofing agent is 1-5 g / L, and the ratio of ZJ239:ZJ221 in the waterproofing agent is in the range of (5-8):1, the fabric prepared by the method provided by the present application has excellent waterproof, oil-proof and stain-proof properties, is easy to clean, and has excellent water washing resistance.

[0122] As shown by the comparison between Example 1 and Comparative Examples 1-4, in the present application, the waterproofing agent and the stain-proofing agent are indispensable.

[0123] Applicants declare that the technical solutions of the present application are illustrated by the above-mentioned examples, but the present application is not limited to the above-mentioned examples, i.e. it does not mean that the present application must rely on the above-mentioned examples to be implemented. It should be understood by those skilled in the art that any improvement of the present application, equivalent replacement of each raw material of the product of the present application, addition of auxiliary ingredients, selection of specific modes, etc. fall within the protection scope and disclosure scope of the present application.

Claims

1. A post-staining treatment method, characterized in that, The post-dyeing treatment method includes: immersing the dyed and washed fabric in a three-proof treatment solution, wherein: The three-proof treatment liquid includes a waterproofing agent and a stain-resistant agent.

2. The post-staining treatment method according to claim 1, characterized in that, The waterproofing agent includes a fluorine-free waterproofing agent, preferably ZJ239 and / or ZJ221.

3. The post-staining treatment method according to claim 2, characterized in that, The waterproofing agents include ZJ239 and ZJ221.

4. The post-staining treatment method according to claim 3, characterized in that, The mass ratio of ZJ239 to ZJ221 is (5-8):

1.

5. The post-staining treatment method according to any one of claims 1-4, characterized in that, The antifouling agent includes ZJ320 NR-99.

6. The post-staining treatment method according to any one of claims 1-5, characterized in that, In the three-proof treatment solution, the concentration of the waterproofing agent is 5-10 g / L.

7. The post-staining treatment method according to any one of claims 1-6, characterized in that, In the three-proof treatment solution, the concentration of the antifouling agent is 1-5 g / L.

8. The post-staining treatment method according to any one of claims 1-7, characterized in that, The immersion treatment is performed at a temperature of 40-60℃ for a time of 30-60 minutes.

9. The application of a post-processing method as described in any one of claims 1-8 in the preparation of three-proof fabrics.

10. A method for preparing a three-proof fabric, characterized in that, The preparation method includes: pre-setting, degreasing, dyeing, washing, post-treatment and drying of the greige fabric to obtain the three-proof fabric. The post-processing method is the post-processing method according to any one of claims 1-8.

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