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Finishing method for high-temperature yellowing resistance of whitened polyester-nylon intertexture

A technology of whitening polyester and nylon, high temperature resistance, applied in the treatment of textile materials, fabric surface trimming, heating/cooling of fabrics, etc., can solve the problems of high temperature yellowing resistance, cost loss, overall yellowing of polyester and nylon interwoven fabrics, etc.

Pending Publication Date: 2020-07-07
福建省晋江新德美化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention patent with the publication number CN107503200A discloses a dyeing and finishing process of pure nylon fabric, which can effectively prevent fabric quality problems such as yellowing after the mold, fluorescent flowers, and yellow spots. There is a significant difference in performance. The high temperature yellowing resistance of polyester-nylon interwoven fabrics is much more difficult than that of pure nylon fabrics. In order to maintain the dimensional stability of polyester-nylon fabrics during printing and dyeing, polyester-nylon fabrics need to be set at high temperatures, which will lead to increased Yellowing of white polyester-nylon interwoven fabrics as a whole or partial yellowing and yellow spots appear locally. Once yellowing is difficult to repair, it will cause cost loss. Anti-yellowing of whitened polyester-nylon interwoven fabrics has always been a difficult problem in the printing and dyeing industry. After inquiry, there is no solution yet. The scheme of whitening polyester-nylon interwoven fabric is disclosed

Method used

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  • Finishing method for high-temperature yellowing resistance of whitened polyester-nylon intertexture
  • Finishing method for high-temperature yellowing resistance of whitened polyester-nylon intertexture
  • Finishing method for high-temperature yellowing resistance of whitened polyester-nylon intertexture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: 16.67tex / 72 polyester-nylon interwoven underwear fabric (polyester:nylon ratio=80:20)

[0026] (1) The anti-high temperature yellowing agent DM-2918 2g / L working fluid is subjected to one dip and one rolling, and the shape is predetermined at 160°C for 30 seconds.

[0027] (2) Polyester whitening agent DM-2608 1.5% (owf),

[0028] Nylon brightener DM-2650 0.5% (owf),

[0029] HAc 0.3%(owf),

[0030] Bath ratio 1:10, heating at 2°C / min, treating at 100°C for 30min, out of the tank, washing at room temperature, and drying.

[0031] (4) Finishing with anti-high temperature yellowing agent DM-2918 5g / L, and the finished product is set for 30 seconds at 165°C.

[0032] The high-temperature process of making the bra: add sponge and press the film at 185℃ for 3min using a cup press molding machine. Use a computer tester to test the whiteness of the fabric after whitening, before pressing and after pressing the following table:

[0033]

[0034] It can be seen from the above tab...

Embodiment 2

[0039] Example 2: 82*18 polyester-nylon knitted fabric swimsuit fabric (polyester:nylon ratio=50:50)

[0040] (1) Anti-high temperature yellowing agent DM-2918 2g / L working fluid is subjected to one dip and one rolling, and the shape is predetermined at 165°C for 30 seconds;

[0041] (2) Polyester whitening agent DM-2608 1.0% (owf),

[0042] Nylon brightener DM-2650 1.0% (owf),

[0043] HAc 0.5%(owf),

[0044] Bath ratio 1:8, treat at 100℃ for 30min, take out the vat, wash with water at room temperature, and dry, leaving a 10×10cm cloth sample.

[0045] (4) Anti-high temperature yellowing agent DM-2918 8g / L working solution, one dipping and one rolling, the finished product is set at 170℃ for 30 seconds; after finishing, the fabric is compared with the fabric sample left in the previous step, and the produced whitening is 3000 There is no yellowing of rice swimsuit fabrics, and the color is pure.

Embodiment 3

[0046] Example 3: 96g / m 2 Polyester / Nylon Woven Fabric (Sportswear Outer Fabric) (Polyester:Nylon ratio = 70:30)

[0047] (1) The anti-high temperature yellowing agent DM-2918 1g / L working solution is dipped and rolled, and the shape is predetermined at 165℃ for 30 seconds;

[0048] (2) Polyester brightener DM-2608 0.8% (owf),

[0049] Nylon brightener DM-2650 0.8% (owf),

[0050] HAc 0.3%(owf),

[0051] Liquor ratio 1:10, treated at 100°C for 30 minutes, out of the tank, washed with water at room temperature, and dried.

[0052] (4) Anti-high temperature yellowing agent DM-2918 6g / L working fluid, one dipping and one rolling, the finished product is set at 175℃ for 30 seconds; the whiteness of the fabric after whitening, before pressing and after pressing is tested by the computer tester as follows:

[0053]

[0054] It can be seen from the above table that the whiteness value does not change much after high temperature treatment, indicating that the finishing method of the invention can...

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Abstract

The invention relates to a finishing method for high-temperature yellowing resistance of a whitened polyester-nylon intertexture. The finishing method comprises the following steps of: S1) finishing and pre-shaping a white polyester-nylon intertexture by using a high-temperature yellowing resistance agent DM-2918; S2) performing low-temperature one-bath whitening on the polyester-nylon intertexture by using a whitening working solution, wherein the working solution comprises 0.5-2% of a polyester whitening agent, 0.5-1.0% of a nylon whitening agent, 0.3-0.5% of HAc and the balance water; and whitening in a dye vat, wherein the bath ratio is 1: (8-10), heating at a speed of 2 DEG C / min, treating at 100 DEG C for 30 minutes, taking out of the vat, washing at normal temperature, and drying;and S3) finishing by using a high-temperature yellowing resistance agent DM-2918, and shaping the finished product. According to the finishing method disclosed by the invention, the high-temperature yellowing resistance and low-yellowing whitening agents are selected, and a combined process of pre-shaping of the high-temperature yellowing resistance agent and shaping of the finished product is adopted, so that dual protection is provided for the polyester-nylon intertexture, nylon fibers and polyester fibers are prevented from being oxidized at high temperature, yellow substances are preventedfrom being generated, and the polyester-nylon intertexture is prevented from yellowing. Therefore, an effective finishing method is provided for improving the application value of the polyester-nylonintertexture.

Description

Technical field [0001] The invention belongs to the technical field of fabric finishing, and in particular relates to a finishing method for whitening polyester-nylon mixed fabrics to resist high temperature yellowing. Background technique [0002] Polyester / nylon blended fabric has higher strength and better abrasion resistance, excellent wearability, bright color, soft and smooth feel, and is a high-end fabric; its wear comfort is better than pure polyester fabric, and its color is purer The nylon fabric is bright. Whitening polyester / nylon interlaced fabric is often used in underwear, swimwear, and sportswear fabrics. The invention patent with publication number CN107503200A discloses a dyeing and finishing process of pure nylon fabric, which can effectively prevent fabric quality problems such as post-mold yellowing, fluorescent flowers, and yellow spots. Due to the physical and chemical properties of polyester and nylon fibers There is a significant difference in performan...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06L4/657D06L4/614D06C7/02D06B3/18
CPCD06L4/657D06L4/614D06C7/02D06B3/18
Inventor 黄其智吕小兰李杰国邓东海秦小臣
Owner 福建省晋江新德美化工有限公司