silk thread dyeing method

Abstract

A dyeing method of silk thread is characterized by comprising steps of preparing the silk thread and a dyeing solution and successively carrying out steps of color blending, dyeing, dehydration, water steam processing, water washing, softening and drying, wherein the dyeing process is performed at normal temperature so that the molecular structure of the silk thread is free from being damaged. During the dyeing process, the silk thread is repeatedly subjected to operations of dyeing and wring so that the silk thread is dyed more transparently and uniformly. During the water steam processing step, the dehydrated silk thread is wrapped by a clean white cloth and then is processed in a steam box by water steam, so that the silk thread is free from being directly contacted with the high-temperature steam box, thereby further protecting the molecular structure of the silk thread is free from being damaged by the high temperature. The invention can greatly improve following indexes of the dyed silk thread: color fastness to water, color fastness to dry friction, color fastness to wet friction, color fastness to light and the like. The silk thread is bright in color, is significantly improved in glossiness, has a silk-like smooth handfeel, is smooth in silk splitting, is clear in monofilament, is significantly enhanced in tension fastness and is not liable to fracture.

Description

technical field [0001] The invention relates to the field of dye printing, in particular to a method for dyeing silk threads. Background technique [0002] Suzhou is the capital of silk, the home of silk brocade, the place of planting mulberry and sericulture, unique geographical resources, natural animal fibers, and Suzhou's exquisite silk reeling and silk dyeing technology. The best material for weaving and embroidery. [0003] Silk thread dyeing includes skein dyeing and package dyeing. Twisted silk dyeing is more traditional. It winds the silk thread into a frame of twisted silk thread through a twisting machine, and then puts it in a special twisted dyeing machine for dyeing liquid dipping or spraying to color the silk thread. Skein dyeing is characterized by simple equipment, relatively low automation and technical requirements, which also brings problems such as long production process, high labor intensity, high consumption and difficult quality control. Compared ...

AI Technical Summary

Problems solved by technology

The package dyeing has a high degree of automation and strict dyeing process, so the labor intensity is greatly reduced, the energy consumption and the loss of dyeing materials are also greatly reduced, and the dyeing quality is better controlled. However, when the package dyeing is used to dye silk threads, There are problems such as degumming and dyeing of silk packages, such as very serious layer difference, decanting and entanglement, which affect the printing and dyeing effect of silk threads. Good hand feeling, gloss, color fastness and pilling resistance of silk thread