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Natural plant dyestuff dyeing and finishing processing method for loose cellulose fiber

A technology of natural vegetable dyes and processing methods, applied in dyeing, textile and papermaking, etc., can solve the problems of increasing processes, affecting the coloring rate of natural vegetable dyes, low production efficiency, etc. The effect of color fastness to rubbing and improvement of coloring rate

Active Publication Date: 2014-07-23
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

At present, the commonly used biological deoxygenase has a good deoxygenation effect and has no effect on chemical dyes, but the remaining deoxygenase affects the coloring rate of natural plant dyes, so it must be fully washed
Increase the process, the production efficiency is not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Dyeing and finishing of hemp fiber, carded or combed net cotton with natural vegetable dyes:

[0034] After oxygen bleaching, the hemp fiber, carded or combed net cotton is directly dyed after washing, adding natural plant auxiliaries with antioxidant effect, preferably natural auxiliaries and natural plant auxiliaries containing glycyrrhetinic acid and glycyrrhizin The dye is dyed in the same bath. The natural plant dyes are selected from pigments or pigment compositions extracted from Chinese herbal medicine plants such as comfrey, rhubarb, gardenia, pomegranate, navy blue fruit, tara, lotus shell, geranium, knotweed, Sophora japonica, schisandra, madder.

[0035] 1. Direct dyeing: After oxygen bleaching, hemp fiber, carded or combed net cotton is directly dyed without oxygen removal after washing. The bath ratio is 1: (3~18). The company's (http: / / www.cairunkj.cn / ) natural dyeing auxiliaries CR1-5 g / L in the same bath or adding 2-5 g / L of natural auxiliaries contain...

Embodiment 2

[0040] Dyeing and finishing of natural plant dyes for cellulose loose fibers such as Tencel and Modal:

[0041] Cellulose loose fibers such as Tencel and Modal do not need pre-treatment degreasing and washing processes, and are directly dyed with natural auxiliaries and natural dyes in the same bath. When dyeing, add natural plant auxiliaries with degreasing effect, preferably containing natural auxiliaries such as sapindus saponin, tea saponin, water extract of hibiscus leaves, water extract of acacia and natural plant dyes in the same bath for dyeing. The natural plant dyes are selected from the pigments extracted from Chinese herbal plants such as comfrey, rhubarb, gardenia, pomegranate, Tibetan green fruit, tara, lotus pod shell, geranium, knotweed, Sophora japonica, Schisandra chinensis, turmeric, madder, red vine, etc. Composition of pigments.

[0042] 1. Direct dyeing: the liquor ratio is 1: (3~20), first add the natural same-bath dyeing auxiliaries CR1~4 g / L of Hangzh...

Embodiment 3

[0047] Low-temperature dyeing and finishing processing of finely modified hemp fiber, carded or combed net cotton with natural vegetable dyes:

[0048] The finely modified hemp fiber and carded net cotton are directly dyed, and the natural additive AQ of Hangzhou Cairun Technology Co., Ltd. is added to dye in the same bath as the natural plant dye. Natural plant dyes are preferably plant pigment dyes extracted from plants of Salvia miltiorrhiza and Radix Radix.

[0049] 1. Direct dyeing: After oxygen bleaching, hemp fiber, carded or combed net cotton is directly dyed without oxygen removal after washing. The bath ratio is 1: (5-20). The company's natural one-bath dyeing auxiliaries CR1 ~ 5 g / liter, then add natural plant dyes, the dyeing temperature is 32 ~ 48 degrees, and the dyeing holding time is 32 ~ 75 minutes.

[0050] 2. After dyeing, it can be dehydrated, and after the dyeing residue is removed, it can be washed with water to reduce the number of cleanings. Dyeing ...

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Abstract

The invention relates to a natural plant dyestuff dyeing and finishing processing method for a loose cellulose fiber. Loose cotton and hemp fibers are processed by the following steps: oxygen bleaching, hot washing, directly dyeing in a same bath, soaping, fixing and softening, dewatering, baking and packaging into a product, wherein the cotton and hemp fibers after oxygen bleaching are added to a natural additive and natural plant dyestuff to be directly dyed in the same bath and then are directly soaped and fixed; regenerated loose cellulose fibers are processed by the following steps: directly dyeing in the same bath, soaping, fixing and softening, dewatering, baking and packaging into the product, wherein the regenerated loose cellulose fiber from which spinning oil is not removed is added to the natural additive and the natural plant dyestuff to be directly dyed in the same bath, and then are directly soaped and fixed. The natural plant dyestuff dyeing and finishing processing method has the advantages that the method does not need uncoiling and washing procedures for pretreatment, the natural additive and the natural dyestuff are adopted to dye in the same bath, direct dyeing can be carried out by simple washing after oxygen bleaching, and the colorized light and the dyeing rate are not affected.

Description

technical field [0001] The invention belongs to the field of textile printing and dyeing, in particular to a method for dyeing and finishing natural plant dyes with natural plant dyes to cellulose loose fibers such as hemp fiber, cotton, tencel and modal. Background technique [0002] At present, the dyeing process of natural vegetable dyes used for dyeing hemp, viscose and other fibers is environmentally friendly, but the color yield is low, the level dyeing property is poor, the color fastness is poor, especially the production efficiency is too low, and large-scale batches have not been achieved in the textile industry. Production. [0003] The dyeing and finishing process of traditional cotton, linen and other textiles using natural plant dyes is: oxygen bleaching—hot water washing—cold water washing—acid neutralization and oxygen removal processing—water washing—dyeing—mordant dyeing—water washing—soaping—hot water washing—cold water washing— Color fixing and soft proc...

Claims

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Application Information

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IPC IPC(8): D06P1/34D06P1/653D06P3/60D06P5/02
Inventor 祝一鸣
Owner 苏州麻朵纺织科技有限公司
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