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Final finishing technique for superfine fibre chemical leather

A technology of ultra-fine fiber and synthetic leather, applied in the direction of fiber type, fiber treatment, dyeing method, etc., can solve the problem of insignificant functional finishing effect, and achieve the effect of prolonged color maintenance time, low pollution, and convenient operation and maintenance.

Inactive Publication Date: 2010-08-04
浙江元新实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a post-finishing process for superfine fiber synthetic leather, to solve the shortcomings of the prior art that the functional finishing effect is not obvious

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
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1: After the base fabric is washed with hot water for 10 minutes, the dyeing step is carried out. In this step, the initial temperature of the water is normal temperature, the bath ratio is 10, and then the base fabric mass 4% acid dye is added, the pH is 6, and the low temperature leveling section The temperature was gradually increased to 60°C within 50 minutes, and the temperature of the high-temperature dyeing section was gradually increased to 90°C within 50 minutes. Then, 1% of the base fabric mass of cationic oil was added, stirred evenly, and the temperature gradually decreased to 50°C within 30 minutes. After washing with water, the finishing process is carried out, the bath ratio is 10, the fiber treatment agent is 15% anionic synthetic leather hand-feeling agent sulfated castor oil, the treatment time is 30min, the temperature is 40℃, adjusted with formic acid, so that the end point PH is 3 . Hang to dry after washing.

Embodiment 2

[0019] Example 2: After the base fabric is washed with hot water for 15 minutes, the dyeing step is carried out. In this step, the initial temperature of the water is normal temperature and the bath ratio is 30. Then a neutral dye of 10% of the base fabric mass is added, and the pH is adjusted to 4 with formic acid. The temperature in the low-temperature leveling section gradually increased to 50°C within 20 minutes, and the temperature in the high-temperature dyeing section gradually increased to 110°C within 30 minutes, and then added a reactive formaldehyde-free fixing agent of 5% by weight of the base fabric, stirred evenly, and the temperature was at 50 minutes The temperature gradually dropped to 30°C. After washing with water, the finishing process is carried out, the bath ratio is 20, the fiber treatment agent is 30% organic silicon fiber treatment agent, the treatment time is 50min, the temperature is 60℃, and the end point PH is adjusted with formic acid. Hang to dry ...

Embodiment 3

[0020] Example 3: After the base fabric was washed with hot water for 10 minutes, the dyeing step was performed. In this step, the initial temperature of the water was normal temperature and the bath ratio was 20. Then, 5% of the base fabric mass was added with disperse dyes, and the pH was adjusted to 5.5 with formic acid. The temperature in the leveling section was gradually increased to 80°C within 35 minutes, and the temperature in the high-temperature dyeing section was gradually increased to 100°C within 10 minutes, and then added a quaternized formaldehyde-free fixing agent of 5% by weight of the base fabric, stirred evenly, and the temperature was at 40 minutes The temperature gradually dropped to 40°C. After washing with water, the finishing process is carried out, the bath ratio is 30, the fiber treatment agent is a 5% non-ionic synthetic leather handle treatment agent, the treatment time is 80min, the temperature is 20℃, and the end point PH is 7. Hang to dry after w...

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
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Abstract

The invention relates to a synthetic leather finishing technique, in particular relates to an ultra-thin fiber synthetic leather finishing technique. The invention aims at solving the problems that functional finishing effect is not obvious in the prior art, the invention adopts the technical proposal that the ultra-thin fiber synthetic leather finishing technique includes the steps that the substrate fabric undergoes the processes of bathing in water, dyeing, bathing in water, finishing, bathing in water again and drying; in the dyeing process, the amount of dye is 1%-10%of the mass of the substrate fabric; the mass ratio of substrate fabric and bath water is 1:10-30; the amount of fixing agent used is 1%-5%of the mass of the substrate fabric; the pH value is adjusted to 3-7; and the dyeing temperature is controlled to be 30-110 DEG C, including a low temperature level dyeing period, a high temperature dye uptake period and a temperature falling period. The ultra-thin fiber syntheticleather finishing technique has the advantages of obvious functional finishing effect, high efficiency, low pollution and low cost.

Description

Technical field: [0001] The invention relates to a finishing process of synthetic leather, in particular to a finishing process of superfine fiber synthetic leather. Background technique: [0002] Microfiber synthetic leather resembles real leather in structure and performance. Its main features and advantages are: ①It is suitable for large-scale continuous industrial production; ②The formation of bundled microfiber and continuous mesh polyurethane structure make it partly close to The structure and feel of natural leather; ③Excellent physical and chemical properties. It is superior to natural leather in terms of mechanical strength, water resistance, oil resistance, weather resistance, etc., and is especially suitable for use in harsh environments, high strength, high humidity, and heavy exercise conditions; ④The processing methods are diverse, and there are many varieties of colors; ⑤Uniform leather body Poor parts, adjustable in thickness, adapt to the needs of a variety of p...

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
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/00D06P3/24D06P5/02D06M15/643D06M101/30
Inventor 罗晓民曲建波强涛涛任龙芳
Owner 浙江元新实业有限公司
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