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Fundamental studies on the improvement of dyeing properties of the wild silk

野蚕丝染色性能改善的基础研究

基本信息

批准号：
62560053
负责人：
KIMURA Mitsuo
金额：
$ 1.22万
依托单位：
MIE UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1987
资助国家：
日本
起止时间：
1987 至 1988
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-62560053/
关键词：
Wild silk Chinese tusser silk Acid dye Disperse dye Reactive disperse dyes Metal complex dye Oxidation dye 等温吸着平衡標準親和力等温初期吸着速度酸化染色

项目摘要

This project was concerned with the fundamental studies for the improvement of dyeabilities and the color fastness to washing of the wild silk(chinese tusser and yamamayu).Thermodynamic data(standard affinity, heat of adsorption, entropy change and diffusion coefficient) were obtained by the measurement of the adsorption isotherm and the rate of dyeing with the typical acid dye, disperse dye and reactive disperse dye on the chinese tusser silk and domestic silk. Standard affinities and rate of dyeing obtained of acid dye and disperse dye on chinese tusser silk were smaller than that of domestic silk. From results obtained, it was estimated that the fine structure of amorphous region of the chinese tusser silk was differed from that of the domestic silk.For getting fast black dyeings of the chinese tusser silk, dyeing with several metal complex dyes, milling type acid azo dyes and oxidation dyes were discussed. In these dyes, chromium or cobalt metal complex dyes which have 4 6 condensed aromatic rings and 2 4 sulfonic acid groups had very good dyeabilities and excellent color fastness to washing. Milling type acid azo dyes consist of nonlinear tris or tetrakis azo melecules also had good dyeabilities, but the color fastness to washing was improved by the aftertreatment with tannic acid. Oxidation dyes gave fast black dyeings by using p-phenylenediamine as oxidant group and the addition of reactive dyes into dye bath. From these results, it can be concluded that the cobalt complex dyes which have condensed aromatic rings as hydrophobic group and sulfonic acid group as hydrophilic group are the most suitable for the dyeing of chinese tusser silk.

本项目针对提高野蚕丝（中国蚕丝、山蚕丝）的染色性和耐水洗色牢度的基础研究。通过测定典型酸性染料、分散染料、活性分散染料的吸附等温线和上染率，得到热力学数据（标准亲和力、吸附热、熵变、扩散系数）。中国丝和国产丝。酸性染料和分散染料对国产丝的标准亲合力和上染率均小于国产丝。从所得结果来看，推测蚕丝非晶区的精细结构与国产蚕丝有所不同。为了使蚕丝快速黑色染色，讨论了几种金属络合染料、缩绒型酸性偶氮染料和氧化染料的染色方法。在这些染料中，具有4 6 个稠合芳环和2 4 个磺酸基的铬或钴金属络合物染料具有非常好的染色性和优异的耐洗色牢度。由非线性三或四偶氮分子组成的研磨型酸性偶氮染料也具有良好的染色性能，但通过单宁酸后处理提高了耐洗色牢度。氧化染料以对苯二胺为氧化剂基团，在染浴中添加活性染料，实现快速黑色染色。由此可见，以稠合芳环为疏水基团、以磺酸基为亲水基团的钴络合染料最适合用于蚕丝的染色。