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Bio-based high gloss vegan leather and manufacturing method thereof

A manufacturing method and high gloss technology, applied in pulp beating method, paper making, calender and other directions, can solve the problems of high gloss, surface smoothness of vegan leather, gloss not as good as genuine leather, inability to make texture, etc. To achieve the effect of simple preparation process, improved gloss and smoothness, and tight integration

Active Publication Date: 2019-10-18
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface smoothness and gloss of the current vegan leather are far inferior to genuine leather, and it is impossible to make leather products with good texture and high gloss

Method used

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  • Bio-based high gloss vegan leather and manufacturing method thereof

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Comparison scheme
Effect test

Embodiment 1

[0032] A method for manufacturing bio-based high-gloss vegan leather, comprising the following steps:

[0033] (1) Select coniferous wood pulp to be beaten by disc grinding until its beating degree is 30 ° SR, then transported to the headbox, and then sent to the wire section of the paper machine for dehydration and molding through the headbox to obtain vegan leather sheets, quantitatively 150 g / m 2 , pressed after dehydration, the pressing pressure is 500KN / m, dried in the dryer after pressing, the drying temperature is 70°C, and the vegan leather base is obtained after drying;

[0034] (2) Transport the vegan leather base described in step (1) to a sizing machine for sizing, select polylactic acid as the sizing agent, and the sizing amount is 100g / m 2 , after drying with hot air at 60°C, perform the first polishing treatment, the pressure of the polishing roller in the first polishing treatment is 30KN / m, and the rolling speed of the polishing roller in the first polishing ...

Embodiment 2

[0037] A method for manufacturing bio-based high-gloss vegan leather, comprising the following steps:

[0038] (1) Select the coniferous wood pulp and beat it through disc grinding until its beating degree is 60 ° SR, then transport it to the headbox, and then spray it to the wire part of the paper machine for dehydration and forming to obtain vegan leather sheets, quantitatively 450 g / m 2 , pressed after dehydration, the pressing pressure is 800KN / m, dried in the dryer after pressing, the drying temperature is 120°C, and the vegan leather base is obtained after drying;

[0039] (2) Transport the vegan leather base described in step (1) to a sizing machine for sizing, select alkyd resin as the sizing agent, and the sizing amount is 200g / m 2 , after drying with hot air at 80°C, perform the first polishing treatment, the polishing roller pressure of the first polishing treatment is 40KN / m, and the polishing roller speed of the first polishing treatment is 350r / min; then transpo...

Embodiment 3

[0042] A method for manufacturing bio-based high-gloss vegan leather, comprising the following steps:

[0043] (1) Select coniferous wood pulp to be beaten by disc grinding until its beating degree is 45°SR, then transported to the headbox, and then sent to the wire section of the paper machine for dehydration and forming through the headbox to obtain vegan leather sheets, quantitatively 300 g / m 2 , pressed after dehydration, the pressing pressure is 650KN / m, after pressing, the dryer is dried at a drying temperature of 95°C, and the vegan leather base is obtained after drying;

[0044] (2) Transport the vegan leather substrate described in step (1) to a sizing machine for sizing, and select polyhydroxy fatty acid ester as the sizing agent, and the sizing amount is 150g / m 2 After drying with hot air at 70°C, perform the first polishing treatment, the pressure of the polishing roller for the first polishing treatment is 50KN / m, and the rolling speed of the polishing roller for...

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Abstract

Relating to the technical field of light industry, the invention discloses a bio-based high gloss vegan leather and a manufacturing method thereof. The method includes: subjecting a fiber slurry to pulping by a disc mill, then conveying the slurry to a flow slurry tank, and spraying the slurry to a paper machine net part through the flow slurry tank for dehydration and molding to obtain a vegan leather sheet, and conducting pressing and drying to obtain a vegan leather base; conveying the vegan leather base to a sizing machine for sizing, conducting drying and polishing, conveying the productto a coater for coating, firstly coating a lower coating agent, performing drying and polishing, and then coating an upper coating agent, and conducting drying and polishing to obtain a vegan leatheroriginal base; and conducting calendaring treatment on the vegan leather original base to obtain the bio-based high gloss vegan leather. The vegan leather adopts plant fiber, resin and other bio-basedmaterials as the raw materials, is prepared by wet-process molding, and has the characteristics of green and environmental protection, and high gloss; and with high surface gloss and smooth surface,the vegan leather can be applied to fashion bags, cover binding and other fields, and the products are beautiful and diverse.

Description

technical field [0001] The invention relates to the technical field of light industry, in particular to a bio-based high-gloss vegan leather and a manufacturing method thereof. Background technique [0002] At present, most of the artificial leathers on the market are based on fabrics, and the surface is coated with synthetic resins such as polyvinyl chloride, polyamide, and polyurethane. Usually, the cost of artificial leather is much lower than that of real leather, and the manufacturing process is relatively simple. It is used in clothing signs, leather bags, and covers. Binding, shoe materials, art and other fields. However, since the raw materials used are synthetic chemical raw materials such as polyurethane, polyvinyl chloride, and polyamide, such chemical raw materials will release toxic and harmful gases such as formaldehyde and styrene during preparation or use, pollute the environment and damage human health. In recent years, under the influence of vegetarianism ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21D1/02D21F3/02D21F5/00D21G1/00D21H23/34D21H23/56
CPCD21D1/02D21F3/02D21F5/00D21H23/56D21H23/34D21G1/00D06N3/00
Inventor 王习文董凯辉李仁坤
Owner SOUTH CHINA UNIV OF TECH
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