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Wet friction fastness improving agent for dyeing fabric

A technology of wet rubbing fastness and improving agent, which is applied in textiles, papermaking, fiber treatment, etc.

Inactive Publication Date: 2009-08-12
上海德桑精细化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to overcome the defects of the existing means for improving the wet rubbing fastness of fabrics, and provide a wet rubbing fastness improving agent for dyed fabrics

Method used

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  • Wet friction fastness improving agent for dyeing fabric
  • Wet friction fastness improving agent for dyeing fabric

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Embodiment Construction

[0027] An agent for improving the wet rubbing fastness of dyed fabrics is characterized in that it is a nonionic polymer and its main component is a polyether hydrous compound. The wet rubbing fastness improving agent is composed of 10-30 parts of low hydrogen-containing silicone oil, polyurethane 30-60 parts of prepolymer, 20-40 parts of polypropylene ester copolymer, formed by copolymerization through the following steps (the stated parts are parts by weight):

[0028] The step of mixing the low hydrogen-containing silicone oil, polyurethane prepolymer and catalyst at room temperature;

[0029] Gradually increase the temperature to 100°C for two hours of reaction, the heating rate is 1.5°C / min;

[0030] cooling to 80°C and adding polypropylene ester copolymer to react for 2-4 hours; and

[0031] Cool down to 40-50°C for the discharge step.

[0032] The pH value of the obtained dyed fabric wet rubbing fastness improving agent is 6-7.

[0033] In specific embodiments:

[0...

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Abstract

The invention relates to an auxiliary agent in the printing and dyeing industry, in particular to a wet rubbing fastness improver for dyed fabric, which is characterized in that the wet rubbing fastness improver is nonionic polymer, of which the main component is polyether compound containing water; the wet rubbing fastness improver is formed by copolymerizing 10 to 30 portions of low-hydro silicone oil, 30 to 60 portions of polyurethane prepolymer and 20 to 40 portions of polypropylene ester copolymer under the conditions of catalyzing and heating; and the portion is weight portion. The wet rubbing fastness improver can improve the wet rubbing fastness of the fabric dyed by direct, active, acid and other dyes by 2 to 3 level to reach above 3 level, has no influence on the tone of the dyed fabric basically, does not influence the light fastness and chlorine fastness, and improves the perspiration-light fastness.

Description

technical field [0001] The invention relates to an auxiliary agent in the printing and dyeing industry, in particular to an agent for improving the rubbing fastness of dyed fabrics. Background technique [0002] For a long time, people have been concerned that the wet rubbing fastness of direct dyes, reactive dyes, acid dyes and other water-soluble dyes cannot meet customer requirements, especially when cellulose fibers are dyed with reactive dyes in deep colors (above 7% o.w.f). Outstanding, due to the considerable amount of unfixed reactive dyes that are not covalently bonded to the fibers. Although the color fixing agent is used to fix the color after dyeing, the wet rubbing fastness can be improved to a certain extent, but often the color fixing agent with good color fixing effect and high wet rubbing fastness has the greatest impact on the shade of the dyed goods, and wet rubbing The fastness can rarely reach level 3. [0003] As customers have higher and higher requi...

Claims

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Application Information

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IPC IPC(8): D06M15/643
Inventor 曹万里顾志安
Owner 上海德桑精细化工有限公司
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