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Posttreatment method of protein fiber fabric dyed by natural dyestuff

A protein fiber and natural dye technology, which is applied in the post-processing field of natural dye dyeing protein fiber fabrics, can solve the problem that the acid-base stability effect of natural dyes is not obvious, and can improve the color fastness to soaping and the acid and alkali resistance. The effect of stability

Inactive Publication Date: 2018-01-12
苏州虹锦生态纺织科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, mordant treatment alone has no obvious effect on improving the acid-base stability of natural dyes

Method used

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  • Posttreatment method of protein fiber fabric dyed by natural dyestuff

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The processing method of embodiment 1 natural dye dyed real silk fabric

[0020] (1) Dyeing of silk fabrics: According to the bath ratio of 1:40, the fabric is added to the dyeing bath containing 1.0 g / L natural dye red beige red pigment, 0.5 g / L leveling agent Pingping plus O, and the pH is adjusted to 4.0, heat up to 90°C, and dye at a constant temperature for 60 minutes. After dyeing, wash and dehydrate.

[0021] (2 treatment: the dyed silk fabric is added to the treatment bath containing 2.0g / L chitosan-methacrylic acid polymer, 0.5 g / L nonionic surfactant AEO9, the control bath ratio is 1:50, and the temperature is raised to Treat at 80°C for 45 minutes, take out the fabric, and dehydrate. Then add the fabric to a treatment bath containing 0.5 g / L alum, pH=5, treat at 50°C for 30 minutes, take out the fabric, dehydrate, wash with hot water and cold water until neutral, Dehydration and drying at 105°C.

Embodiment 2

[0022] The processing method of embodiment 2 natural dye dyed wool fabrics

[0023] (1) Dyeing of wool fabric: According to the bath ratio of 1:40, the fabric is added to the dyeing bath containing 2.0 g / L natural dye shellac pigment, 0.5 g / L leveling agent Pingping plus O, and the pH is adjusted to 4.0 , heated to 90°C, and dyed at a constant temperature for 60 minutes. After dyeing, wash and dehydrate.

[0024] (2 processing: the dyed wool fabric is added to the treatment bath containing 4.0g / L chitosan-methacrylic acid polymer, 1.0 g / L nonionic surfactant AEO9, the control bath ratio is 1:50, and the temperature is raised to Treat at 80°C for 45 minutes, take out the fabric, and dehydrate. Then add the fabric to a treatment bath containing 1.0 g / L alum, pH=5, treat at 50°C for 30 minutes, take out the fabric, dehydrate, wash with hot water and cold water until neutral, Dehydration and drying at 115°C.

[0025] The processing method of control sample 1:

[0026] (1) Dyei...

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Abstract

The invention discloses a posttreatment method of a protein fiber fabric dyed by natural dyestuff. The posttreatment method comprises the following steps: adding the protein fiber fabric dyed by the natural dyestuff into a treatment bath containing 0.5 to 5g / L of a chitosan-methacrylate polymer and 0.2 to 1.0g / L of a nonionic surfactant AEO9, controlling the bath ratio to 1 to 50, raising the temperature to 80 DEG C, treating for 45 minutes, taking out the fabric and dewatering; then adding the fabric into the treatment bath which contains 0.2 to 1.5 g / L of alum and has a pH value equal to 5,treating the fabric at the temperature of 50 DEG C for 30 minutes, taking out the fabric and dewatering; washing the fabric with hot water and cold water to neutral, dewatering and then drying at thetemperature of 100 to 120 DEG C. The method has the advantages that fastness indexes related to the pH value such as the stability of acid and alkali resistance, the color fastness to soaping, the color fastness to perspiration of the dyed fabric can be improved.

Description

technical field [0001] The invention relates to a post-treatment method for dyeing protein fiber fabrics with natural dyes, and belongs to the technical field of textile printing and dyeing processing. Background technique [0002] Because some synthetic dyes can decompose carcinogenic aromatic amines or the dye itself is sensitizing and carcinogenic, which does not meet the requirements of ecological textiles, people are increasingly studying the application of natural dyes in textile dyeing. Natural dyes are natural pigments extracted from the roots, stems, leaves, flowers, fruits of various plants, and the dried bodies of certain insects and shellfish without any chemical treatment. Therefore, natural dyes have good compatibility with the ecological environment, are biodegradable, and have low toxicity, and are widely used in food industry, daily chemicals, textile dyeing and other fields. [0003] When natural dyes are used for textile dyeing and printing, there are als...

Claims

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Application Information

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IPC IPC(8): D06P5/08D06P5/04D06P5/10D06P1/34D06P3/04D06P3/14D06M15/03D06M15/263D06M101/10D06M101/12
Inventor 王祥荣钱琴芳段佳吴学芬
Owner 苏州虹锦生态纺织科技有限公司
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