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Plant dyeing method for polylactic acid fiber fabric and garment

A polylactic acid fiber and plant dyeing technology, applied in the field of textile printing and dyeing, can solve the problems of textiles losing their use value, strength decline, polylactic acid not resistant to high temperature, etc., and achieve the effect of retaining antiviral components

Pending Publication Date: 2021-10-26
苏州麻朵纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current polylactic acid fiber fabrics and garments are dyed with disperse dyes under high temperature and high pressure conditions. Especially dark colors need to be dyed at 120 degrees, but the color depth is not as good as that of polyester fabrics. Increasing the dyeing temperature can increase the coloring rate, but polylactic acid is not good. High temperature resistance, when the dyeing temperature is higher than 100 degrees, the strength will drop and the hand will become hard. After the dyeing temperature exceeds 115 degrees, the strength will drop more, and the textiles dyed by more than 120 degrees will lose their use value

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The plant dyeing method of polylactic acid fiber fabric and ready-made clothes, comprises the following steps:

[0031] 1. Use 30 mature leaves of red-skinned rough fruit, add 69.5 parts of purified water and 0.5 parts of tartaric acid, and ferment in a sealed container at 30°C for 3 days. The temperature is below 35°C. After a period of time, the fermentation solution no longer heats up, and before the leaves only soften and change color and do not rot, the fermented liquid is filtered out with a 200-mesh stainless steel mesh. After fermentation, the leaves are filtered by a filter press to form a cake, and the cake-shaped fermented leaves can be used for subsequent composting. The fermented solution after pressure filtration is filtered again through a 200-mesh stainless steel mesh, and combined with the previous fermented liquid to make a natural dyeing auxiliary for promoting hair color.

[0032] 2. Plant dyeing of polylactic acid fiber fabrics and garments: the p...

Embodiment 2

[0036] The plant dyeing method of polylactic acid fiber fabric and ready-made clothes, comprises the following steps:

[0037] 1. Vegetable dyeing of polylactic acid fiber fabrics and garments: the plant dyeing bath ratio of polylactic acid fiber fabrics and garments is 1:12 (the weight percentage of dyed fabrics and dyeing water). After adding water, polylactic acid fiber fabric and finished garments into the dyeing machine, add natural dyeing auxiliaries DA 2g / l (relative to the volume ratio of the dye liquor), 20g / l of the pigment extracted from hematoxylin water (relative to the volume ratio of the dye liquor), and heat up to 98 ℃, keep warm for 60 minutes, then add natural dyeing auxiliaries ABF 10g / l (relative to the dye liquor volume ratio), raise the temperature to 95 ℃ and keep warm for 30 minutes, drain the liquid after dyeing, and dye it into light pink.

[0038] 2. Washing after dyeing: According to the bath ratio of polylactic acid fiber fabrics and garments to wa...

Embodiment 3

[0042] The plant dyeing method of polylactic acid fiber fabric and ready-made clothes, comprises the following steps:

[0043] 1. Vegetable dyeing of polylactic acid fiber fabrics and garments: the plant dyeing bath ratio of polylactic acid fiber fabrics and garments is 1:10 (weight percentage of dyed fabrics and dyeing water). After adding water, polylactic acid fiber fabrics and finished garments into the dyeing machine, add natural dyeing auxiliaries DA 2g / l (relative to the volume ratio of the dye liquor), and alcohol-water extracts of sweet clover, marigold, and sorghum husks 2-15g / l l (relative to the volume ratio of the dye liquor), raise the temperature to 98°C, and add natural dyeing auxiliaries ABF 12g / l (relative to the volume ratio of the dye liquor) after keeping it warm for 60 minutes, keep it warm at 75°C for 35 minutes, drain the liquid after dyeing, and dye Into brilliant yellow-green.

[0044] 2. Washing after dyeing: According to the bath ratio of polylacti...

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Abstract

The invention relates to a plant dyeing method for a polylactic acid fiber fabric and a garment. Plant dye is adopted for the polylactic acid fiber fabric and the garment. Water, the polylactic acid fiber fabric and the garment are added into a dyeing machine; 0-5 g / l of a natural dyeing aid DA and the plant dye are added; the temperature is increased to 75-98 DEG C and kept for 30-90 minutes; 10-50 g / l of a natural dyeing aid for promoting dyeing is added; the temperature of 75-98 DEG C is kept for 20-40 minutes; and after dyeing, liquid discharging, hot water washing and color fixing are performed to finish normal-pressure and low-temperature plant dyeing. The method has the advantages that the optimized plant dye is adopted to replace petroleum chemical dye to carry out plant dyeing on the polylactic acid fiber fabric and the garment, so that the dyeing process of the polylactic acid fiber fabric and the garment is more environment-friendly and low-carbon.

Description

technical field [0001] The invention belongs to the field of textile printing and dyeing, in particular to a plant dyeing method for polylactic acid fiber fabrics and garments. Background technique [0002] Polylactic acid (PLA) is made from biomass raw materials (corn, cassava, straw cellulose, etc.) through microbial fermentation. After discarded, the products of polylactic acid fiber can be decomposed into carbon dioxide and water by microorganisms in the soil, and return to nature. Naturally degraded, composted and burned, it will not emit poisonous gas and cause pollution. It is a typical low-carbon footprint product and is the best environmentally friendly fiber. Most of the polylactic acid fiber textiles have to go through dyeing, printing and other processes to form colorful textiles, and chemical dyes themselves are petrochemical products with high pollution, high carbon emissions, and refractory degradation. Polylactic acid dyed with chemical dyes Fiber textile lo...

Claims

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Application Information

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IPC IPC(8): D06P1/34D06P1/44D06P3/52D06P5/02C09B61/00C09B67/54
CPCD06P1/34D06P1/445D06P3/52D06P5/02C09B61/00C09B67/0096
Inventor 祝一鸣
Owner 苏州麻朵纺织科技有限公司
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