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Method for preparing polyamine-epichlorohydrin color fixing agent

A technology of epichlorohydrin and color-fixing agent, applied in the field of textile dyeing and finishing, can solve problems such as poor color-fixing effect, and achieve the effect of maintaining the feel of fabrics

Active Publication Date: 2012-06-13
AOMYA DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of preparation method of polyamine-epichlorohydrin color-fixing agent, solve the color-fixing effect of the color-fixing agent prepared by the existing method to dark-colored cotton fabrics and fabrics such as silk, wool, nylon etc. good question

Method used

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  • Method for preparing polyamine-epichlorohydrin color fixing agent

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preparation example Construction

[0018] The preparation method of polyamine-epichlorohydrin color fixing agent of the present invention, specifically implement according to the following steps:

[0019] Option One:

[0020] Step 1: Weighing triethylenetetramine, epichlorohydrin, triethylamine and distilled water respectively according to the molar ratio of 1-3:6-10:1-3:20-40.

[0021] Step 2: Put the triethylenetetramine weighed in step 1 into the reactor, turn on the agitator, add the distilled water weighed in step 1, add the epichlorohydrin weighed in step 1 dropwise using a constant pressure dropping funnel, and control the drop Add the speed to keep the temperature in the reactor at 15-20°C. After the dropwise addition, keep it warm for 1h, then add the triethylamine weighed in step 1, control the reaction temperature at 15-20°C for 1h, and then gradually increase the temperature Heat to 60-65°C, keep warm for 4-5 hours, cool to room temperature and discharge.

[0022] Alternatively, add the triethylen...

Embodiment 1

[0033]Put 0.2 mol of triethylenetetramine into the reactor, start the agitator, add 4 mol of distilled water, add 1.2 mol of epichlorohydrin dropwise through a constant pressure dropping funnel, and control the rate of dropping to keep the temperature in the reactor at 15~ Insulate and react at 20°C for 1h, then add 0.2mol of triethylamine dropwise, control the reaction temperature at 15-20°C for 1h, then gradually raise the temperature to 60-65°C, keep warm for 4-5h, then cool to room temperature After discharge.

Embodiment 2

[0035] Put 0.4 mol of triethylenetetramine into the reactor, start the agitator, add 6 mol of distilled water, add 1.6 mol of epichlorohydrin dropwise through a constant pressure dropping funnel, and control the rate of dropping to keep the temperature in the reactor at 15~ Insulate and react at 20°C for 1h, then add 0.4mol of triethylamine dropwise, control the reaction temperature at 15-20°C for 1h, then gradually raise the temperature to 60-65°C, keep warm for 4-5h, then cool to room temperature After discharge.

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Abstract

The invention discloses a method for preparing a polyamine-epichlorohydrin color fixing agent. The color fixing agent is obtained by controlling the mixing ratio of triethylenetetramine or tetraethylenepentamine or a mixture of the triethylenetetramine and the tetraethylenepentamine, epichlorohydrin, triethylamine and distilled water, and the parameters of hybrid reaction. The color fixing agent is used for dyeing after-treatment of textiles, can improve the washing fastness and color fastness to dry and wet crocking of the dyeing of various anionic dyes and keep the handfeel of the textiles soft, and solves the problem that a color fixing agent prepared by the conventional method has bad effects of fixing the colors of fabrics such as dark cotton fabrics, silk, wool, nylon and the like.

Description

technical field [0001] The invention belongs to the technical field of textile dyeing and finishing, and relates to a preparation method of a color-fixing agent, in particular to a preparation method of a polyamine-epichlorohydrin color-fixing agent. Background technique [0002] The dyed fabric must have a certain level of fastness to soaping, water washing, and rubbing resistance. However, because anionic dyes contain water-soluble groups such as carboxylic acid groups and sulfonic acid groups, the dyed fabrics are especially deep-colored. Fabrics have poor wet fastness. my country's accession to WTO has brought great opportunities to the textile industry, but also made the textile industry face huge challenges. In the inspection of export textiles, the unqualified rate of dyeing fastness accounts for 20% to 30%, especially the washability and friction resistance. The fastness does not meet the requirements. Therefore, the research and development of color-fixing agents f...

Claims

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Application Information

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IPC IPC(8): C08G73/02D06P5/08
Inventor 樊增禄李庆唐文锋
Owner AOMYA DIGITAL TECH CO LTD
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