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Polyurethane or polyvinyl chloride synthetic-leather with nonperiodic pattern and its making process

A polyvinyl chloride leather and polyvinyl chloride technology, applied in textiles and papermaking, can solve the problems of thin color layer, easy to wear off color, unnatural pattern, etc., and achieve the effect of natural color and not easy to fade.

Inactive Publication Date: 2004-07-28
蔡绍清
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the patterns on the surface of polyurethane (PU) or polyvinyl chloride (PVC) synthetic leather are either embossed by flower rollers or released paper. The release paper is actually a casting paper with a pattern master, and its pattern is also It is pressed with flower rollers. Therefore, the patterns on the surface of PU or PVC synthetic leather are directly or indirectly pressed with flower rollers. The patterns produced in this way must have periodic repetitions, and the patterns are very unnatural.
[0003] Moreover, at present, PU or PVC colored synthetic leather is processed by surface coating or printing after being made into semi-finished leather. The color layer of the colored synthetic leather made in this way is very thin, and the color is easy to wear off.

Method used

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  • Polyurethane or polyvinyl chloride synthetic-leather with nonperiodic pattern and its making process
  • Polyurethane or polyvinyl chloride synthetic-leather with nonperiodic pattern and its making process
  • Polyurethane or polyvinyl chloride synthetic-leather with nonperiodic pattern and its making process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: the preparation of polyvinyl chloride crust leather (crust leather can also be purchased from polyvinyl chloride synthetic leather factory, and various polyvinyl chloride crust leathers are all applicable);

[0023] Raw material ratio

[0024] 1. Polyvinyl chloride paste resin P450 (produced by Tianyuan Chemical Factory of Shanghai Tianyuan Chemical Group): 100 parts (quality, the same below)

[0025] 2. Plasticizer: dioctyl phthalate (DOP) (produced by Jinling Petrochemical Co., Ltd.): 80 parts

[0026] 3. Foaming agent azodicarbonamide (AC) (produced by Zhenjiang Resin Factory) 2 parts

[0027] 4. Stabilizer liquid barium zinc (produced by Wuxi Nanfang Fine Chemical Factory) 3 parts

[0028] 5. Pigment (produced by Shanghai Pigment Factory) brown paste 3 parts

[0029] 6. 30 parts of filler light calcium carbonate (produced by Nanjing Tangshan Ash Refinery).

[0030] Preparation of crust leather:

[0031] Feed the above raw materials according to th...

Embodiment 2

[0032] Embodiment 2: the preparation of polyurethane crust leather (crust leather can also be purchased from polyurethane synthetic leather factory, and various polyurethane crust leathers are all applicable)

[0033] Apply the resin glue of dry polyurethane resin UM-40 or UD-45, with or without bridging agent DN-75 (both are produced by Zhangjiagang Dongfang Synthetic Resin Co., Ltd.) On the fine fiber polyurethane leather base cloth (produced by Yantai Wanhua Group), the glue consumption is 150g / m 2 , and dried in a drying tunnel at 120-125°C for about 90-120 seconds to obtain polyurethane crust leather.

Embodiment 3

[0035] 1. Preparation of polyvinyl chloride surface layer compound:

[0036] a. Raw material ratio: 100 parts of polyvinyl chloride paste resin P440 (produced by Tianyuan Chemical Factory of Shanghai Tianyuan Chemical Group);

[0037] Plasticizer DOP 70 parts

[0038] Stabilizer liquid barium zinc 3 parts

[0039] Pigments, appropriate amount of pigments of various colors, to prepare polyvinyl chloride surface layer sizing materials of various colors.

[0040] b. The preparation method is to feed materials according to the proportion, stir, send to a three-roller machine for grinding, and wait for use after stirring.

[0041] 2. Preparation of PVC Synthetic Leather

[0042] Take 8 grams each of the black, red, light brown, dark blue, light blue, yellow, and brown surface rubber materials prepared in step 1 and spread them on 0.5 square meters of polyvinyl chloride crust leather, and place the crust leather on the platform for use. The polyethylene film (0.03mm) is evenly c...

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PUM

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Abstract

The manufacturing method of a kind of PU and PVC compound leather is opened. The cancavo-convex decoration pattern and color on the surface are not periodic repetition. The pattern and color vary naturally and are very beautiful. And the color is under the rubber surface. The color layer is thick, wear-resistant durable and doesn't lose color.

Description

technical field [0001] The invention relates to polyurethane or polyvinyl chloride synthetic leather and its manufacturing process. Background technique [0002] At present, the patterns on the surface of polyurethane (PU) or polyvinyl chloride (PVC) synthetic leather are either embossed by flower rollers or released paper. The release paper is actually a casting paper with a pattern master, and its pattern is also It is pressed with flower rollers. Therefore, the patterns on the surface of PU or PVC synthetic leather are directly or indirectly pressed with flower rollers at present. The patterns produced in this way must have periodic repetitions, and the patterns are very unnatural. [0003] And at present PU or PVC color synthetic leather all is to carry out surface coating or printing process after being made into semi-finished leather, the colored synthetic leather color layer of making like this is very thin, and color wears off easily. Contents of the invention [...

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): D06N3/00
Inventor 蔡绍清
Owner 蔡绍清