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Method for producing environment-friendly type spunlace non-woven fabric shoe lining leather

A spunlace non-woven, environmentally friendly technology, used in footwear, textiles, papermaking, apparel, etc., can solve problems such as high energy consumption, serious production process pollution, and excessive volatile organic compounds.

Inactive Publication Date: 2017-08-25
上海自见新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Release paper---coating (PU and DMF, MEK)---pre-drying---lamination---drying (1, waste gas---DMF recovery 2, finished product) adopt harmful and easy-to-use Volatile organic solvents produce a large amount of waste water and waste gas, the process is complicated, the energy consumption is high, the residual volatile organic compounds in the finished product exceed the standard, and the production process is seriously polluted

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

[0012] Embodiment 1: produce 0.6mm imitation sheepskin pattern soft shoe lining leather:

[0013] 1. Soak 60g of spunlace cloth in water-based PU, roll it dry, dry it in an oven, wind it up after cooling, set the temperature at 100°C--140°C and control the width at 142cm. A number of color pastes.

[0014] 2. Imitation sheepskin pattern release paper--water-based PU coating (15 wires)--drying (80--140 ° C) --- solvent-free primer coating (15 wires) --- drying (80-- 100°C) --- laminating with spunlace cloth --- aging (100--130°C) --- cooling --- peeling --- winding (finished product);

[0015] Among them, the water-based ratio: 30% soft PU 100 parts, water 50 parts, thickener 0.5% solvent 0.2% color paste.

[0016] Among them, the proportion of solvent-free materials: 100 parts of soft solvent-free two-component PU, 0.3% of catalyst, and several color pastes.

Embodiment 2

[0017] Embodiment 2: produce 0.7mm imitation pigskin pattern breathable shoe lining;

[0018] 1. Use 70g spunlace cloth, and refer to the above for others;

[0019] 2. Use pigskin pattern release paper, water-based PU coating with 20 filaments, and punch holes in the finished product. Others refer to the above.

Embodiment 3

[0020] Embodiment 3: production of hard water-absorbing shoes at the bottom of 0.8mm

[0021] For 80g of spunlace cloth, refer to the above for others, use medium hard water-absorbent water-based PU and solvent-free two-component PU, refer to the above for others.

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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PUM

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Abstract

The invention provides a method for producing environment-friendly type spunlace non-woven fabric shoe lining leather. The method comprises the following steps of 1, soaking 45g-80g of spunlace non-woven fabric into a mixed solution of waterborne polyurethane and waterborne color paste; 2, conducting mangling and drying; 3, then conducting compounding on a waterborne polyurethane surface layer and a solvent-free foamed polyurethane bottom layer through a release paper method to obtain the needed spunlace non-woven fabric shoe lining leather of all colors and patterns. According to the material matching ratio, the spunlace non-woven fabric shoe lining leather is prepared from, by volume, 100 parts of 30% waterborne polyurethane, 100 parts of the water and several parts of the color paste. According to an improved technology, the method comprises the steps of taking the spunlace non-woven fabric; conducting impregnation (waterborne PU); conducting drying; obtaining a semi-finished product; conducting adhering; conducting ripening (discharge-free); obtaining a product; taking the release paper; conducting waterborne PU coating; conducting drying; conducting solvent-free foamed PU coating; conducting adhering; conducting ripening (no discharge); obtaining a finished product. In the method for producing the environment-friendly type spunlace non-woven fabric shoe lining leather, a processing method is adopted that waterborne polyurethane is subjected to impregnation and coloring, foamed polyurethane is used as a bottom material, and waterborne polyurethane is used as a surface layer. No additive is added, and greenness and environment protection in the production process and the final product are guaranteed.

Description

technical field [0001] The invention relates to a method for making spunlace non-woven shoe inner leather. Background technique [0002] Original process: spunlace cloth----pre-impregnation (PU and DMF)---pre-solidification (water)---coating (PU and DMF)----coagulation (water)---washing--- Drying (1. Waste water DMF---DMF recovery 2. Semi-finished product---lamination---drying---①waste gas---DMF recovery ②finished product). [0003] Release paper---coating (PU and DMF, MEK)---pre-drying---lamination---drying (1, waste gas---DMF recovery 2, finished product) adopt harmful and easy-to-use Volatile organic solvents produce a large amount of waste water and waste gas, the process is complicated, the energy consumption is high, the residual volatile organic compounds in the finished product exceed the standard, and the production process is seriously polluted. Contents of the invention [0004] The invention provides a method for producing environment-friendly spunlace non-wo...

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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IPC IPC(8): D06N3/14D06N3/00
CPCD06N3/145D06N3/0011D06N3/0043D06N3/0077D06N3/0086D06N3/0097D06N2211/106D06N2211/28
Inventor 蒋月明
Owner 上海自见新材料科技有限公司
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