Unlock instant, AI-driven research and patent intelligence for your innovation.

Reduced dye blending process

A dye and blending technology, applied in the direction of organic dyes, etc., can solve the problem of uneven dyeing and achieve the effect of accelerating the reduction rate

Inactive Publication Date: 2013-03-20
WUJIANG DINGJIA TEXTILE
View PDF8 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, this vat dyeing process requires multiple additions of reducing agents, and requires more precise control of the dosage, otherwise uneven dyeing will occur

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
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0012] A vat dye blending process described in the present invention comprises the following steps: firstly adjust the dye into a slurry with a small amount of water and a blender, then add warm water twice the weight of the dye and an appropriate amount of alkali powder, and then mix the dye under the condition of 40°C After the dye is fully reduced, it is filtered and added to the dye vat containing caustic soda and sodium hydrosulfite solution, and diluted to the required concentration for dyeing.

[0013] It has been proved by many tests that the effect is the best when the ratio of caustic soda and hydrosulfite in the dye vat is 3:2.

[0014] In order to increase the versatility of the present invention, the color of the vat dye is black, red...

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a reduced dye blending process. The process comprises the following steps of: firstly blending a dye, a little water and a blender to prepare thin pulp, then adding defined amount of warm water and defined amount of alkaline powder, then reducing the materials at 40 DEG C for 5-10 minutes, filtering the product after the dye is fully reduced, adding the filtered product to a vat containing caustic soda and sodium hydrosulfite solution and diluting the materials to the required concentration for dyeing. The process has the beneficial effects that as little water is used during reduction, that is, the concentrations of the caustic soda and sodium hydrosulfite are increased, the dye reduction rate is improved and the reduction reaction is normally completed.

Description

technical field [0001] The invention relates to the field of garment dyes, in particular to a vat dye blending process. Background technique [0002] Dyes are substances that can color fibers and other materials, and are divided into two categories: natural and synthetic. Dyes are colored substances. But a colored substance is not necessarily a dye. As a dye, it must be able to attach a certain color to the fiber. And it is not easy to fall off and change color. In 1856, Perkin invented the first synthetic dye - horsetail purple, which made organic chemistry separate into a new discipline - dye chemistry. 1950s. Pattee and Stephen discovered that dyes containing dichloro-s-triazine groups bonded to hydroxyl groups on fibers under alkaline conditions, which marked the development of dyes from physical processes to chemical processes in fiber coloring, and created a period for the synthesis and application of reactive dyes . At present, dyes are not limited to the dyein...

Claims

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/30
Inventor 沈月红
Owner WUJIANG DINGJIA TEXTILE