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Blue anti-yellowing dyeing process for polyester knitted fabric

A knitted fabric and anti-yellowing technology, which is applied in the field of polyester fabric dyeing, can solve the problems of affecting the aesthetics of clothes, non-durable anti-yellowing properties, high crystallization and alignment, and achieves improved anti-yellowing and anti-yellowing durability, Excellent durability of anti-yellowing and improvement of dyeing uniformity

Pending Publication Date: 2021-06-15
JIANGSU DINGXIN PRINTING & DYEING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Yellowing of polyester blue fabric, which affects the aesthetics of the entire garment
[0003] Adding an anti-yellowing agent to the dyeing solution is one of the ways to solve the yellowing of polyester blue fabrics. However, due to the characteristics of polyester with strong hydrophobicity, high crystallization and alignment, small fiber gaps, and not easy to wet and expand, it is difficult to disperse blue fabrics. It is difficult for anti-yellowing agent and anti-yellowing agent to enter the void of polyester fiber. It is difficult to dye polyester with conventional dyeing methods, and the anti-yellowing property is not durable.
[0004] Therefore, the present application urgently needs to develop a blue anti-yellowing dyeing process for polyester knitted fabrics, so as to alleviate the problems of low dyeing rate of polyester dyeing and non-durable anti-yellowing properties.

Method used

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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  • Blue anti-yellowing dyeing process for polyester knitted fabric
  • Blue anti-yellowing dyeing process for polyester knitted fabric
  • Blue anti-yellowing dyeing process for polyester knitted fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Embodiments 1-18 provide a blue anti-yellowing dyeing process for polyester knitted fabrics, which will be described below by taking Embodiment 1 as an example.

[0050] The blue anti-yellowing dyeing process of polyester knitted fabric provided by embodiment 1, its steps are:

[0051] a: pre-processing

[0052] a1: put the clean polyester gray cloth into the warehouse;

[0053] a2: The indirect hot air setting machine is used to pre-order polyester gray cloth. The exhaust gas of combustion does not directly contact the gray cloth in the oven, but heats the air in the oven through a heat exchanger, and uses the indirectly heated air to heat treat the gray cloth to control the predetermined temperature. 190°C;

[0054] Wherein, the yarn count of the polyester gray cloth is 50D×50D, and the weight is 49g / m 2 , article number DTF2103, purchased from Jujiu Textile Factory, Yushan Town, Kunshan City;

[0055]a3: Mix 1.5kg of soda ash, 0.6kg of glacial acetic acid, 0.6kg ...

Embodiment 2-3

[0067] Example 2-3 is the same as Example 1, except that the components and process parameters of the pretreatment liquid and the dyeing liquid are different, see Table 1 for details.

[0068] Table 1 Embodiment 1-3 components and process parameters

[0069]

Embodiment 4

[0070] Embodiment 4, with embodiment 3, difference is only: the component of described dyeing liquid is different and b step is different;

[0071] Step b in Example 4 is: disperse blue 0.4kg, level dyeing and repairing agent 0.7kg, anti-yellowing agent 1kg, glacial acetic acid 0.8kg, disperse fluorescent yellow 0.003kg, disperse chelating agent 0.3kg, TF degreasing agent 0.3kg Mix with 1L of deionized water and stir evenly to obtain a dyeing liquid; add the dyeing liquid (dyeing bath ratio: 1:10) to the pre-treated fabric for dyeing, control the dyeing temperature to 120°C, and the dyeing time to 60 minutes to obtain dyeing after the fabric;

[0072] Wherein, the disperse fluorescent yellow is disperse fluorescent yellow 10GFF, purchased from Jize County Shunde Dyestuff Distribution Co., Ltd.;

[0073] The dispersing chelating agent is HT-AL, purchased from Nantong Hantai Chemical Co., Ltd.;

[0074] The TF degreasing agent is TF-1153 (the pH value of 1wt% aqueous solution ...

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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PUM

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Abstract

The invention relates to the technical field of polyester fabric dyeing, in particular to a blue anti-yellowing dyeing process for a polyester knitted fabric. The blue anti-yellowing dyeing process comprises the following steps of a, pretreatment; B, dyeing: adding a dyeing solution for dyeing, wherein the dyeing bath ratio is 1: (8-12); and c, post-treatment, wherein the dyeing solution at least comprises the following components in concentration of 0.2-0.6 g / L of disperse blue, 0.4-1 g / L of a level-dyeing color modifier, 0.5-1.5 g / L of an anti-yellowing agent and 0.6-1 g / L of glacial acetic acid. According to the blue anti-yellowing dyeing process for the polyester knitted fabric, provided by the invention, the anti-yellowing agent reduces the yellowing of the light-color blue fabric, and under the action of the level-dyeing color modifier, the dye-uptake and the anti-yellowing durability of the polyester fabric are effectively improved, dyeing defects are avoided, and the dyeing uniformity and the color fastness are improved.

Description

technical field [0001] The application relates to the technical field of polyester fabric dyeing, in particular to a blue anti-yellowing dyeing process for polyester knitted fabrics. Background technique [0002] During the production process of polyester blue fabric, the treatment process, the use of additives and the pH value during the treatment process will cause the fabric to yellow. During storage, changes in temperature and humidity, especially washing and drying will also cause yellowing, and in the presence of nitrogen oxides, any trace of phenolic antioxidants will transfer to polyester through volatilization or friction. Blue fabric surfaces can also cause yellowing. The yellowing of polyester blue fabric affects the aesthetics of the entire garment. [0003] Adding an anti-yellowing agent to the dyeing solution is one of the ways to solve the yellowing of polyester blue fabrics. However, due to the characteristics of polyester with strong hydrophobicity, high c...

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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IPC IPC(8): D06P1/16D06P1/44D06P1/653D06P3/54D06P5/00D06P5/02D06P5/04
CPCD06P1/16D06P1/445D06P1/6533D06P3/54D06P5/00D06P5/02D06P5/04
Inventor 杨继烈黄逸舟
Owner JIANGSU DINGXIN PRINTING & DYEING