Method for testing resin fastness of color-woven pure cotton fabric for ready-made garment

Abstract

This invention belongs to the field of textile printing and dyeing technology, specifically relating to a method for testing the resin fastness of wrinkle-free yarn-dyed pure cotton fabrics for garments. The fabric to be tested is a white-based, dark-striped or dark-colored pure cotton fabric for wrinkle-free garments. The method includes the following steps: Sample preparation: Take the fabric to be tested and sew it into a sample to form a composite sample; Testing process: Place the composite sample in a stainless steel cup, add 20-25g of resin mixture and 80-100 stainless steel beads, and place it in a wash fastness testing machine, running it at 35-45℃ for 40-50 minutes; Rating: Remove the composite sample, rinse with room temperature water, air dry, and use the AATCC EP2 staining grey scale to rate the staining of the multi-fiber interlining. This invention realistically simulates the wrinkle-free resin rolling process, which is closer to actual production than traditional soap washing testing, and the judgment results are more reliable. Early screening before garment processing avoids rework and waste caused by unqualified finished products.

Description

Technical Field , ,

[0001] The present invention belongs to the technical field of textile printing and dyeing, and specifically relates to a method for detecting the resin fastness of yarn-dyed pure cotton fabrics for ready-to-wear anti-wrinkle Background Art

[0002] With the development of society and the improvement of people's living standards, people's requirements for the comfort of clothing are increasing day by day. Ready-to-wear anti-wrinkle technology, as the name implies, means that after wearing and washing, the clothing can maintain a flat and new appearance without or only with simple finishing. While endowing the fabric with wrinkle resistance, anti-wrinkle treatment also often enhances the mechanical properties of its fibers, making the clothing more resistant to wear and washing. It is not easy to deform after repeated washing; whether it is taken out of the suitcase and worn immediately during business trips or in the rainy and humid seasons, anti-wrinkle clothing can show its excellent adaptability. It solves the pain points of traditional shirts and trousers being easy to wrinkle and difficult to take care of, allowing the wearer to remain decent and calm in various scenarios.

[0003] However, the requirements for indicators such as strength and fastness before making ready-to-wear anti-wrinkle are strict. For fastness, the soaping fastness test can be used to detect fastness before making ready-to-wear anti-wrinkle, but it cannot meet the fastness situation of simulating ready-to-wear anti-wrinkle. There is a situation where the fabric fastness test is qualified, but it is still unqualified after making ready-to-wear anti-wrinkle. If it is not detected in time before processing ready-to-wear anti-wrinkle and is unqualified, after making ready-to-wear clothes and after the resin rolling process, the fastness is unqualified and it is difficult to improve. There are also some cases where dark and light varieties are color-matched for production, and for varieties with white backgrounds and dark stripes or checks. During the processing of ready-to-wear anti-wrinkle, due to poor resin fastness, accidents of color bleeding and staining occur, and the resin fastness cannot be improved, resulting in the situation of re-production. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a method for detecting the resin fastness of yarn-dyed pure cotton fabrics for ready-to-wear anti-wrinkle. For ready-to-wear anti-wrinkle fabrics of dark colors and white stripe or check varieties, before making ready-to-wear anti-wrinkle, the resin fastness is detected. If unqualified is found, rework is carried out in time to avoid the situation of being unqualified after making ready-to-wear clothes and avoid waste.

[0005] The method for detecting the resin fastness of yarn-dyed pure cotton fabrics for ready-to-wear anti-wrinkle according to the present invention includes the following steps: The fabric to be tested is a yarn-dyed pure cotton fabric with a white background and dark stripes or checks or a dark color-matched pure cotton fabric for ready-to-wear anti-wrinkle; (1) Specimen preparation: Take the fabric to be tested for specimen sewing, where: The specimen sewing method for the dark color-matched pure cotton fabric is: Sew the undyed white body fabric of the same size and the dark color-matched pure cotton fabric face to face, and sew an AATCC multi-fiber lining on the dark color-matched pure cotton fabric to make a combined specimen; The method for sewing a sample of white-based dark striped pure cotton fabric is as follows: Sew the white-based dark striped pure cotton fabric with AATCC multifiber lining to make a combined sample. (2) Test procedure: Place the combined sample into a stainless steel cup, add resin mixture and 80-100 stainless steel beads, place it in a wash fastness tester, and run it at 35-45℃ for 40-50 minutes. (3) Rating: Take out the combined sample, rinse it with clean water at room temperature 2-3 times, air dry it naturally, and use the AATCCEP2 staining gray card to rate the staining of the multi-fiber lining.

[0006] The weight of the fabric to be tested is 5-10g.

[0007] The combined sample weighs 10-12g.

[0008] The AATCC multifiber liner measures 5cm x 5cm. This 5cm x 5cm AATCC multifiber liner (NO. 10) is used to receive dye shed from the fabric being tested, serving as a carrier for stain monitoring and rating.

[0009] This multi-fiber lining is a standard testing lining containing various fibers such as cotton, wool, silk, nylon, polyester, and acrylic. As a dedicated staining monitoring carrier, it is used to receive dyes shed from the fabric during the resin finishing process, directly reflecting the risk of color fading and staining. At the same time, it provides a unified and standardized judgment interface for the AATCC EP2 staining grey card rating, ensuring that the test results are quantifiable, comparable, and repeatable.

[0010] The amount of resin mixture added is 20-25g.

[0011] The resin mixture has the following composition: CR-E: 80~90 g / L, CT-C: 24~27 g / L. Both CR-E and CT-C are commercially available products from Zibo Lurui Fine Chemical Co., Ltd.

[0012] The stainless steel beads have a diameter of 5-8 mm.

[0013] The stainless steel cup has a capacity of 800~1200mL.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1) This invention realistically simulates the non-iron-washing resin rolling process, which is closer to actual production than traditional soap washing testing, and the judgment results are more reliable.

[0015] 2) This invention is designed to screen products in advance before garment processing, avoiding rework and waste caused by unqualified finished products; no new equipment is required, and the test can be completed using existing wash fastness testing machines.

[0016] 3) The detection method described in this invention is simple to operate, has controllable conditions, and good repeatability, making it suitable for batch testing in factories. Detailed Implementation

[0017] The present invention will be further described below with reference to the embodiments.

[0018] Unless otherwise specified, all raw materials used in the examples were commercially available.

[0019] CR-E and CT-C are both commercially available products of Zibo Lurui Fine Chemical Co., Ltd.

[0020] Example 1 The fabric to be tested is 100% cotton, with specifications of CPT80 / 2×CPT50×144×75×62, a weave of 1 / 1, and a white base with navy blue and light blue plaid patterns. The method for testing the resin fastness of the yarn-dyed pure cotton fabric for wrinkle-free garments includes the following steps: (1) Sample preparation: Take 8g of the fabric to be tested and sew a 5cm×5cm AATCC multifiber lining (NO.10) on the fabric to form a 10g combined sample.

[0021] (2) Test process: Use a wash fastness tester, set the temperature to 35℃, put the sewn combination sample into a 1200ml stainless steel cup, pour in 20g of resin mixture, add 100 stainless steel beads with a diameter of 5mm, put the stainless steel cup into the tester and run for 50 minutes; the composition of the resin mixture is: CR-E: 80g / L, CT-C: 24g / L.

[0022] (3) Rating: After completion, take out the combined sample, rinse it twice with room temperature water, air dry it naturally, and use the AATCC EP2 textile staining gray card to evaluate and rate it.

[0023] Example 2 The fabric to be tested is 100% cotton, with specifications of CPT80 / 2×CPT76 / 2×160×72×62, a weave of 2 / 2CP, and a navy blue color scheme. The main body fabric is white. The method for testing the resin fastness of the yarn-dyed pure cotton fabric for wrinkle-free garments includes the following steps: (1) Sample preparation: Take 5g of the color matching fabric to be tested and 5g of the body fabric and sew them together. Sew a 5cm×5cm AATCC multifiber lining (NO.10) on the color matching fabric to form a 12g combined sample.

[0024] (2) Test process: Use a wash fastness tester, set the temperature to 45℃, put the sewn combination sample into a 1200ml stainless steel cup, pour in 25g of resin mixture, add 80 stainless steel beads with a diameter of 8mm, put the stainless steel cup into the tester and run for 40 minutes; the composition of the resin mixture is: CR-E: 80g / L, CT-C: 24g / L.

[0025] (3) Rating: After completion, take out the combined sample, rinse it three times with room temperature water, air dry it naturally, and use the AATCC EP2 textile staining grey card to evaluate and rate it.

[0026] Example 3 The fabric used is 100% cotton, with specifications of CPT80 / 2×CPT76 / 2×160×72×62, 2 / 2CP weave, and a navy blue fabric with white stripes. The method for testing the resin fastness of the yarn-dyed pure cotton fabric for wrinkle-free garments includes the following steps: (1) Sample preparation: Take 8g of the fabric to be tested and sew a 5cm×5cm AATCC multifiber lining (NO.10) on the fabric to form a 10g combined sample.

[0027] (2) Test process: Use a wash fastness tester, set the temperature to 40℃, put the sewn combination sample into a 1200ml stainless steel cup, pour in 20g of resin mixture, add 90 stainless steel beads with a diameter of 6mm, put the stainless steel cup into the tester and run for 45 minutes; the composition of the resin mixture is: CR-E: 90g / L, CT-C: 27g / L.

[0028] (3) Rating: After completion, take out the combined sample, rinse it twice with room temperature water, air dry it naturally, and use the AATCC EP2 textile staining gray card to evaluate and rate it.

[0029] The fabrics prepared in Examples 1-3 were subjected to performance tests, and the test methods are as follows: Resin fastness testing: The resin fastness testing method described in this invention; Wash fastness test: color fastness to washing is tested according to AATCC 61. The test was conducted using procedure 3A of the 2013E (2020) standard "Color fastness to washing: accelerated method". The test results are shown in Table 1.

[0030] Table 1 Performance Test Results

[0031] Based on the above test results, it can be seen that the test method of the present invention is more reliable than the AATCC61 soap wash fastness test for testing the resin finishing fastness of wrinkle-free garments.

Claims

1. A method for testing the resin fastness of yarn-dyed pure cotton fabric for wrinkle-free garments, characterized in that, Includes the following steps: The fabric to be tested is a white-based dark-striped pure cotton fabric or a dark-colored pure cotton fabric for wrinkle-free garments. (1) Sample preparation: Take the fabric to be tested and sew the sample, wherein: The method for sewing a sample of dark-colored pure cotton fabric is as follows: Sew undyed white body fabric of the same size and dark-colored pure cotton fabric together with their right sides facing each other, and sew AATCC multifiber interlining onto the dark-colored pure cotton fabric to make a combined sample. The method for sewing a sample of white-based dark striped pure cotton fabric is as follows: sew the white-based dark striped pure cotton fabric with AATCC multifiber lining to make a combined sample. (2) Test procedure: Place the combined sample into a stainless steel cup, add resin mixture and 80-100 stainless steel beads, place it in a wash fastness tester, and run it at 35-45℃ for 40-50 minutes. (3) Rating: Take out the combined sample, rinse with clean water at room temperature, air dry naturally, and use the AATCCEP2 staining gray card to rate the staining of the multi-fiber lining.

2. The method for testing the resin fastness of wrinkle-free yarn-dyed pure cotton fabric for garments according to claim 1, characterized in that, The weight of the fabric to be tested is 5-10g.

3. The method for testing the resin fastness of wrinkle-free yarn-dyed pure cotton fabric for garments according to claim 2, characterized in that, The combined sample weighs 10-12g.

4. The method for testing the resin fastness of wrinkle-free yarn-dyed pure cotton fabric for garments according to claim 1, characterized in that, The dimensions of the AATCC multifiber liner are 5cm × 5cm.

5. The method for testing the resin fastness of wrinkle-free yarn-dyed pure cotton fabric for garments according to claim 1, characterized in that, The amount of resin mixture added is 20-25g.

6. The method for testing the resin fastness of wrinkle-free yarn-dyed pure cotton fabric for garments according to claim 5, characterized in that, The resin mixture has the following composition: CR-E: 80~90g / L, CT-C: 24~27g / L.

7. The method for testing the resin fastness of wrinkle-free yarn-dyed pure cotton fabric for garments according to claim 1, characterized in that, The stainless steel beads have a diameter of 5-8 mm.

8. The method for testing the resin fastness of wrinkle-free yarn-dyed pure cotton fabric for garments according to claim 7, characterized in that, The stainless steel cup has a capacity of 800~1200mL.

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