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Preparation method of mirror release paper for leather

A technology for release paper and leather, which is applied in the field of preparation of mirror release paper for leather, and achieves the effects of quality stability assurance, rapid cooling and solidification, and whitening avoidance.

Pending Publication Date: 2021-06-04
SHENZHEN WANJI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies in the prior art, one of the objectives of the present invention is to provide a method for preparing a mirror release paper for leather, the release paper obtained will not have the problems of paper curl and wire drawing during use, and the covered After the leather with mirror release paper passes through the oven, the mirror surface of the leather will not appear white or not bright enough, so that the quality stability of the synthetic leather is guaranteed

Method used

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  • Preparation method of mirror release paper for leather
  • Preparation method of mirror release paper for leather
  • Preparation method of mirror release paper for leather

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Effect test

preparation example Construction

[0025] The present invention provides a kind of preparation method of mirror release paper for leather, comprising the following steps:

[0026] S1: Provide the base paper 10, the coating material and the coating machine, the coating machine includes a mirror roll 20 with a smooth surface, an auxiliary roll 40 in contact with the surface of the mirror roll 20, and an auxiliary roll 40 located at the upper end of the mirror roll 20 Laminating head 30, such as figure 1 As shown; the coating material includes the following components by weight: 58 parts-62 parts of polypropylene, 38 parts-42 parts of polyethylene;

[0027] S2: Place the base paper 10 between the mirror roller 20 and the auxiliary roller 40, pour the coating material between the mirror roller 20 and the base paper 10 through the coating head 30, and pass the mirror roller 20 to the base paper 10 coated with the coating material Apply pressure to form a coating material layer with a smooth surface on the surface o...

Embodiment 1

[0042] A preparation method for mirror surface release paper for leather, comprising the steps of:

[0043] S1: Provide the base paper 10, the coating material and the coating machine, the coating machine includes a mirror roll 20 with a smooth surface, an auxiliary roll 40 in contact with the surface of the mirror roll 20, and an auxiliary roll 40 located at the upper end of the mirror roll 20 Laminating head 30; the laminating material includes the following components by weight: 60 parts of polypropylene and 40 parts of polyethylene; the quality index requirements of the mirror roller 20 are: surface hardness is HRc60-HRc70, and balance is G40 Grade, smoothness is Ra0.02-Ra0.006, roughness is Ra0.8-Ra1.0;

[0044]S2: Place the base paper 10 between the mirror roller 20 and the auxiliary roller 40, pour the coating material between the mirror roller 20 and the base paper 10 through the coating head 30, and pass the mirror roller 20 to the base paper 10 coated with the coatin...

Embodiment 2

[0046] A preparation method for mirror surface release paper for leather, comprising the steps of:

[0047] S1: Provide the base paper 10, the coating material and the coating machine, the coating machine includes a mirror roll 20 with a smooth surface, an auxiliary roll 40 in contact with the surface of the mirror roll 20, and an auxiliary roll 40 located at the upper end of the mirror roll 20 Laminating head 30; The coating material package Comprising the following components by weight: 58 parts of polypropylene, 38 parts of polyethylene; The quality index requirements of the mirror roller 20 are: the surface hardness is HRc60-HRc70, the balance is G40, the smoothness is Ra0.02-Ra0.006, and the roughness is Ra0.8-Ra1.0;

[0048] S2: Place the base paper 10 between the mirror roller 20 and the auxiliary roller 40, pour the coating material between the mirror roller 20 and the base paper 10 through the coating head 30, and pass the mirror roller 20 to the base paper 10 coat...

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Abstract

The invention discloses a preparation method of mirror release paper for leather. The method comprises the following steps of: placing raw paper between a mirror roller and an auxiliary roller, spraying a lamination material between the mirror roller and the raw paper through a lamination head, and applying pressure to the raw paper sprayed with the lamination material through the mirror roller so as to form a lamination material layer with a smooth surface on the surface of the raw paper, and obtain the mirror surface release paper . Through cooperation of the mirror roller, the lamination material and the preparation process, polypropylene has the effect of enhancing the hardness of resin, polyethylene has the effect of enhancing the adhesion degree and elasticity, and the surface of the release paper is appropriate in hardness and has certain elasticity due to the appropriate proportion of polypropylene and polyethylene; the release paper is prevented from curling, and the paper surface is prevented from being scratched in the use process of the release paper, so that the quality stability of the synthetic leather is ensured.

Description

technical field [0001] The invention relates to the technical field of release paper production technology, in particular to a preparation method of a mirror-surface release paper for leather. Background technique [0002] Release paper is a kind of coated paper, usually composed of a paper base layer and a release coating layer. The surface of the coating has a concave-convex pattern structure, but the surface of the mirror release paper has smooth requirements. [0003] Leather can be divided into genuine leather, regenerated leather and synthetic leather according to different manufacturing methods. Due to the scarcity and high price of genuine leather resources, with the rapid improvement and improvement of leather production and processing technology, the production technology of synthetic leather is becoming more and more mature. It is also getting better and better. Synthetic leather is used more and more in our daily life, and is widely used to make various leather p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H23/46D21H25/12D21H25/06D21H19/22D21H27/00
CPCD21H23/46D21H25/12D21H25/06D21H19/22D21H27/001
Inventor 曾冲林张锋
Owner SHENZHEN WANJI TECH CO LTD