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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: 2012-09-05
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] A wet rubbing fastness enhancer for dyed fabrics, which is characterized in that it is a non-ionic polymer, and the main component is polyether water-containing compound. The wet rubbing fastness enhancer is composed of 10-30 parts of low-hydrogen silicone oil, polyurethane 30-60 parts of prepolymer and 20-40 parts of polyacrylate copolymer are copolymerized through the following steps (the parts are parts by weight):

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

[0029] Gradually raise the temperature to 100°C for a two-hour reaction step, with a heating rate of 1.5°C / min;

[0030] Cool to 80°C and add the polypropylene ester copolymer to react for 2-4 hours; and

[0031] The temperature is lowered to 40-50°C for discharging step.

[0032] The obtained dyed fabric wet rubbing fastness enhancer has a pH value of 6-7.

[0033] In a specific embodiment:

[0034] The catalyst is an organotin catalyst with 0.5-2 p...

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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 enhancer for the rubbing fastness of dyed fabrics. Background technique [0002] For a long time, the wet rubbing fastness of water-soluble dyes such as direct dyes, reactive dyes, acid dyes, etc. cannot meet customer requirements and has been concerned, especially when cellulose fibers are dyed with reactive dyes in deep and concentrated colors (above 7% owf) Outstandingly, the amount of reactive dyes that are not fixed because they are not covalently bonded to the fiber. 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 the fixing agent with good fixing effect and high wet rubbing fastness has the greatest impact on the shade of the dye, and wet rubbing The fastness rarely reaches level 3. [0003] As customers demand higher and higher wet rubbing fastness of fabrics, it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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