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Flame-retardant superfine fiber suede leather with excellent dyeing performance and preparation method thereof

A dyeing performance and ultra-fine fiber technology, applied in the direction of textiles and papermaking, can solve the problems of hard hand feeling, poor civil performance, poor dyeing performance, etc., and achieve the effect of high color depth, soft hand feeling and high color fastness

Active Publication Date: 2020-01-17
江苏华峰超纤材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the expansion of application fields, ordinary flame-retardant synthetic leather has been successfully used in automobiles, furniture and other fields, but the requirements for high-end markets, such as the SFI (Auto Parts Trade Organization) certification that must be obtained for the equipment used in American competitions , is still far from being satisfied, especially the traditional flame-retardant treatment process has poor dyeing performance, and the back-coating process uses acrylate as a carrier, which feels hard and has poor civilian performance. Therefore, it is necessary to further improve the flame-retardant properties of microfiber suede. Performance, dyeing performance and civil performance are the inevitable trend of market development

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) Using modified polyurethane as a starting material to prepare a superfine fiber suede flame-retardant base cloth, and then performing sheeting and grinding successively to obtain an initial flame-retardant suede base cloth;

[0036] The modified polyurethane is polyether polyurethane, which contains secondary and tertiary amino groups in the structure,

[0037] Then, the initial flame-retardant suede base cloth is super-dyed and finished. For details, please refer to the disclosed method of the Chinese patent, application number CN201510801187.X, for drying and buffing.

[0038] (2) Finishing after dyeing of microfiber suede

[0039] For the dyeing of microfiber suede, refer to the patent application number: CN201510801187.X, drying and smoothing.

[0040] (3) Impregnation and flame retardant finishing of superfine fiber suede

[0041] The flame-retardant base cloth obtained in step (1) is impregnated with the first flame retardant, dipped and rolled, the content ...

Embodiment 2

[0053] The preparation of the superfine fiber suede flame-retardant base cloth is the same as in Example 1, and the modified polyurethane is polyester polyether copolymerized polyurethane, which contains secondary and tertiary amino groups in the structure;

[0054] The obtained flame retardant base cloth is impregnated with the first flame retardant, dipping and rolling, the content of the first flame retardant is 15%, the liquid retention rate is 60%, and the temperature is 140°C, and the flame retardant suede base is prepared. Cloth, the first flame retardant described is a decabromodiphenylethane structure, and commercial products can be used, such as Doher-6502 of Doyle Chemical;

[0055] The second fire retardant is coated with the flame retardant suede roller of gained, and described second fire retardant is made up of the weight fraction of following components:

[0056] Flame retardant 2·································· 55

[0057] Silica gel························...

Embodiment 3

[0065] The preparation of the superfine fiber suede flame-retardant base cloth is the same as in Example 1, wherein the modified polyurethane is polyether polyurethane and polyester polyether copolymer polyurethane, and the structure contains secondary amino, tertiary amino and quaternary amino groups. Amino.

[0066] The obtained flame retardant base cloth is impregnated with the first flame retardant, dipping and rolling, the content of the first flame retardant is 8%, the liquid retention rate is 45%, and the temperature is 135 ℃, and the flame retardant suede base is prepared. Cloth, the first flame retardant described is a decabromodiphenylethane structure, and commercial products can be used, such as Doher-6502 of Doyle Chemical;

[0067] The second fire retardant is coated with the flame retardant suede roller of gained, and described second fire retardant is made up of the weight fraction of following components:

[0068] Flame retardant 2 50 parts

[0069] Silica ge...

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Abstract

The invention discloses flame-retarding superfine fiber suede leather with excellent dyeing property and a preparation method of the flame-retarding superfine fiber suede leather. The preparation method comprises the following steps: (1) suede leather base cloth with primary flame retardance is prepared from modified polyurethane as a starting material; then the suede leather base cloth with primary flame retardance is subjected to finishing after super dyeing, and flame-retarding base cloth is obtained; (2) the flame-retarding base cloth obtained in the step (1) is impregnated with a first flame retardant and dried, and flame-retarding suede leather base cloth is prepared, wherein the first flame retardant is of a decabromodiphenyl ethane structure; (3) the flame-retarding suede leather is coated with a second flame retardant in a rolling manner, flame-retarding superfine fiber suede leather with excellent dyeing property is obtained, and the second flame retardant contains a flame retardant 2 which is prepared from the decabromodiphenyl ethane structure and antimony(III) oxide by compounding. The dye-uptake of the base cloth is increased, the dyed base cloth is uniform in color, and the K / S value and the color fastness are high.

Description

technical field [0001] The invention relates to the resin synthesis, dyeing and flame retardant finishing process of suede leather. Background technique [0002] Microfiber synthetic leather is a new type of high-grade artificial leather made of extremely fine nylon fibers, which has the characteristics of genuine leather and has superior indicators than genuine leather. Polyurethane synthetic leather based on three-dimensional network structure superfine fiber nonwoven fabric is a new generation of synthetic leather developed in recent years. Some people call it the fourth generation of artificial leather. It is comparable to high-grade natural leather and has the inherent characteristics of natural leather. Excellent moisture absorption and breathability, and surpasses natural leather in terms of chemical resistance, waterproof, and mildew resistance. With the expansion of application fields, ordinary flame-retardant synthetic leather has been successfully used in automob...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/00D06N3/14
CPCD06N3/0004D06N3/004D06N3/0059D06N3/14D06N3/141
Inventor 胡忠杰张其斌韩芹孙向浩杜明兵梁柱王立国
Owner 江苏华峰超纤材料有限公司
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