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Polyurethane pu synthetic leather semi-finished product line

A synthetic leather and polyurethane technology, applied in textiles and papermaking, etc., can solve the problems of troublesome waste water treatment, a large amount of acid waste water, and high treatment costs, and achieve the effect of reducing treatment costs, avoiding acid waste water, and reducing process flow.

Active Publication Date: 2017-12-19
HUAIAN KAIYUE TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process is cumbersome, and a large amount of acidic wastewater will be generated during the production process. The treatment of wastewater is troublesome and the treatment cost is relatively high.

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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  • Polyurethane pu synthetic leather semi-finished product line
  • Polyurethane pu synthetic leather semi-finished product line
  • Polyurethane pu synthetic leather semi-finished product line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] combine figure 2 and image 3 As shown, the top and the bottom in the oven 7 are respectively fixed with a hot air pipe 12, and the side of the hot air pipe 12 facing the cloth 11 is respectively provided with an air outlet pipe 13, and the air outlet 17 of the air outlet pipe 13 The wind direction of the hot blast that blows out is horizontal direction; Described air outlet 17 is located at an end of air outlet pipe 13 facing cloth 11, is provided with windshield 18 between the air outlet 17 of described air outlet pipe 13 and beep 11; The two side edge portions of above-mentioned wind deflector 18 are horizontal.

Embodiment 2

[0044] combine figure 2 and Figure 4 As shown, the top and the bottom in the oven 7 are respectively fixed with a hot air pipe 12, and the side of the hot air pipe 12 facing the cloth 11 is respectively provided with an air outlet pipe 13, and the air outlet 17 of the air outlet pipe 13 The hot air that blows out is blown to the side away from cloth 11; Described air outlet 17 is arranged on the end of air outlet pipe 13 facing cloth 11, is provided with windshield 18 between the air outlet 17 of described air outlet pipe 13 and cloth 11 ; The two sides of the windshield 18 are inclined to the side away from the cloth 11 .

Embodiment 3

[0046] combine figure 2 and Figure 5 As shown, the top and the bottom in the oven 7 are respectively fixed with a hot air pipe 12, and the side of the hot air pipe 12 facing the cloth 11 is respectively provided with an air outlet pipe 13, and the air outlet 17 of the air outlet pipe 13 The wind direction of the blown hot air is horizontal; the air outlet 17 is arranged on the side wall of the air outlet pipe 13 .

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 discloses a polyurethane PU synthetic leather semi-finished product production line. An unwinding device, an impregnation device, a first coating device, a first drying box, a second coating device, a second drying box and a winding device are sequentially arranged. The portions, located above and below a cloth conveying device, in the drying box are provided with hot air pipe respectively. One side, facing a cloth, of each hot air pipe is provided with an air outlet pipe. Hot air is blown out of an air outlet of each air outlet pipe in the horizontal direction or towards the side away from the cloth. According to the polyurethane PU synthetic leather semi-finished product production line of the structure, air blown out of the air outlet of the air outlet pipe in the drying box does not directly blow the cloth, it is ensured that water in a water-borne coating is rapidly evaporated, and the water-borne coating on the surface of the cloth is prevented from damaging surface quality under the wind effect when unconsolidated; meanwhile, compared with infrared lamp heating, energy consumption is low.

Description

technical field [0001] The invention relates to the production field of synthetic leather, in particular to a semi-finished production line of polyurethane PU synthetic leather. Background technique [0002] The prior art synthetic leather production line drying equipment is specially designed for oily resin coatings. Oleoresin contains a large amount of toxic and harmful gases, which will cause great harm to the environment and operators, and the synthetic leather made of oleoresin paint will also contain toxic and harmful substances, which will also cause harm to consumers. Therefore, people are gradually beginning to use non-toxic and harmless water-based resins for the production of synthetic leather. The oven equipment in the prior art directly blows the cloth, because the oily resin has a high viscosity, so even if the air pipe blows directly to the oily resin coating when the oily resin coating is not solidified, it will not cause The surface of the oil-based resin ...

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): D06N3/00D06N3/14
CPCD06N3/0077D06N3/14D06N2211/28
Inventor 李桂军向以俊金叶玲陈静陈权
Owner HUAIAN KAIYUE TECH DEV
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