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Natural dye dyeing method based on non-damaging modification of real silk fabrics

A technology for silk fabrics and natural dyes, applied in the field of natural dyes dyeing, can solve the problems of poor color fastness and low dyeing rate, and achieve the effects of convenient operation, uniform dyeing, good washing fastness and rubbing fastness

Inactive Publication Date: 2012-05-02
ZHEJIANG SCI-TECH UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems of low dyeing rate and poor color fastness of natural dyes on real silk fabrics, the object of the present invention is to provide a natural dyeing method based on non-damaging modification of real silk fabrics. Modification, so that the modifier is mainly combined with the silk fabric through physical adsorption, will not cause damage to the silk fabric, avoids the use of acid and alkali reagents in the modification process, and enhances the silk fabric without affecting the excellent physical and chemical properties of the silk fabric. Improve the binding ability of natural dyes to silk fabrics, and without adding mordants in the dyeing process, natural dyes can achieve higher dyeing uptake, color fastness and level dyeing on silk fabrics

Method used

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  • Natural dye dyeing method based on non-damaging modification of real silk fabrics

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Experimental program
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Effect test

Embodiment 1

[0021] The present embodiment selects real silk fabric to carry out dyeing treatment, and concrete steps are as follows:

[0022] (1) Modified liquid treatment:

[0023] The formula of dioctadecyldimethylammonium bromide modified liquid is as follows: dioctadecyldimethylammonium bromide consumption 0.5 g / L, liquor ratio 1: 20, under normal temperature condition, real silk fabric is treated in In the dioctadecyldimethylammonium bromide finishing solution, the temperature was raised to 60 °C at a rate of 1 °C / min, and after being treated at 60 °C for 10 min, the fabric was washed with cold water.

[0024] (2) Dyeing with natural dyes

[0025] The above-mentioned non-damaging modified silk fabrics were dyed with natural dyes copper sodium chlorophyllin, annatto, cochineal or gardenia yellow; meanwhile, the unmodified silk fabrics were dyed with the same dyeing process. The dyeing process was carried out as it is. The formula of the dyeing solution is: dye dosage 1% (o.w.f), ba...

Embodiment 2

[0029] (1) Modified liquid treatment:

[0030] The formula of dioctadecyldimethylammonium bromide modified liquid is as follows: dioctadecyldimethylammonium bromide consumption 5 g / L, bath ratio 1: 40, under normal temperature condition, real silk fabric is treated in In the dioctadecyldimethylammonium bromide finishing solution, the temperature was raised to 80 °C at a rate of 2 °C / min, and after being treated at 80 °C for 30 min, the fabric was washed with cold water.

[0031] (2) Dyeing with natural dyes:

[0032] The silk fabrics treated by the above non-damaging modification were dyed with natural dyes copper sodium chlorophyllin, annatto, cochineal red or gardenia yellow; at the same time, the unmodified cotton fabrics were dyed with the same dyeing process. The dyeing process was carried out as it is. The formula of the dyeing solution is: dye dosage 5% (o.w.f), liquor ratio 1: 40, dye the cotton fabric treated with the above treatment solution at room temperature for...

Embodiment 3

[0036] (1) Modified liquid treatment:

[0037] The formula of lauryl dimethyl benzyl ammonium chloride modified liquid is as follows: the dosage of lauryl dimethyl benzyl ammonium chloride is 2 g / L, the bath ratio is 1: 30, and the real silk fabric is treated under normal temperature conditions. Place in lauryl dimethyl benzyl ammonium chloride finishing solution, raise the temperature to 70 °C at a rate of 1 °C / min, treat at 70 °C for 20 min, and wash the fabric with cold water.

[0038] (2) Dyeing with natural dyes:

[0039] The above-mentioned non-damaging modified silk fabrics were dyed with natural dyes copper sodium chlorophyllin, annatto, cochineal or gardenia yellow; meanwhile, the unmodified silk fabrics were dyed with the same dyeing process. The dyeing process was carried out as it is. The formula of the dyeing solution is: dye dosage 2% (o.w.f), bath ratio 1: 20, first at room temperature, dye the silk fabric treated with the above treatment solution for 10 minut...

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Abstract

The invention discloses a non-invasive modified anion dyeing method of natural dye on real silk fabrics, comprising the following steps: adding a non-damaging modifier containing long-chain quaternary ammonium cations to prepare a modifying liquid, and using the modifying liquid to carry out non-damaging modification on real silk fabrics; processing the real silk fabrics modified by non-damaging modification in a natural dye liquor at normal temperature; and after dyeing, carrying out color fixation on the real silk fabrics dyed by the natural dye. According to the invention, by modifying the real silk fabrics in advance, the electropositivity of the real silk fabric is enhanced, the bonding capability of real silk fabrics to the anionic natural dye is improved, the dye uptake, color depth and dyeing uniformity of the natural dye on the real silk fabrics are effectively increased, and the washing resisting fastness and antifriction fastness of the real silk fabrics dyed by the natural dye are obviously improved by the subsequent processes. The method has the advantages of uniform dyeing, simple process, and convenient operation, and especially can use dyeing machines for large scale production, thus the invention has a wide application prospect.

Description

technical field [0001] The invention relates to a natural dye dyeing method for real silk fabrics, in particular to a natural dye dyeing method based on non-damaging modification of real silk fabrics. Background technique [0002] Silk fiber is a protein fiber composed of 18 kinds of amino acids. It has soft luster, moisture absorption and breathability, and has a good affinity with human skin. It is known as the "fiber queen". Silk garments made of silk fibers are naturally draped, light and elegant, elegant and luxurious, and have always been treasures in clothing consumption. Natural dyes originate from nature and mainly exist in the flowers, fruits, skins, stems, leaves and roots of plants. They are harmless to human health, have high wearing safety, are biodegradable, and have good compatibility with the environment. It will pollute the environment and meet the requirements of modern people for their own health and environmental protection. Therefore, the ecological d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/34D06P3/04D06P5/00D06M13/463D06M101/12
Inventor 周岚林声伟邵建中柴丽琴
Owner ZHEJIANG SCI-TECH UNIV