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Preparation method of water-based leather release paper

A release paper and leather technology, applied in special paper, paper, papermaking and other directions, can solve the problems of insufficient pattern haze, unguaranteed quality stability of synthetic leather, poor anti-curling effect of release paper, etc. Guaranteed quality stability, avoiding curling, good anti-curling effect

Pending Publication Date: 2021-06-01
SHENZHEN WANJI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The anti-curling effect of the release paper obtained by the existing leather release paper preparation method is poor, and the haze of the pattern is insufficient, so that the quality stability of the synthetic leather cannot be guaranteed

Method used

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  • Preparation method of water-based leather release paper
  • Preparation method of water-based leather release paper
  • Preparation method of water-based leather release paper

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] The invention provides a kind of preparation method of water-based leather release paper, comprises the steps:

[0027] S1: provide base paper 10, coating materials and a coating machine, the coating machine includes a patterned roller 20, an auxiliary roller in contact with the surface of the patterned roller 20, a coating head 30 located at the upper end of the patterned roller 20, and A cooling roll 40 positioned at the rear end of the patterned roll 20;

[0028] S2: Put the base paper 10 between the pattern roller 20 and the auxiliary roller, pour the coating material through the coating head 30 to the middle of the pattern roller 20 and the base paper 10, and apply the coating material to the base paper 10 through the pattern roller 20 Pressure, so that the surface of base paper 10 forms a layer of coating material with a pattern structure to obtain a semi-cured release paper, wherein the coating direction of the coating head 30 is tangential to the contact point o...

Embodiment 1

[0037] A preparation method of water-based leather release paper, comprising the steps of:

[0038] S1: provide base paper 10, coating materials and a coating machine, the coating machine includes a patterned roller 20, an auxiliary roller in contact with the surface of the patterned roller 20, a coating head 30 located at the upper end of the patterned roller 20, and A cooling roll 40 positioned at the rear end of the patterned roll 20;

[0039]S2: Put the base paper 10 between the pattern roller 20 and the auxiliary roller, pour the coating material through the coating head 30 to the middle of the pattern roller 20 and the base paper 10, and apply the coating material to the base paper 10 through the pattern roller 20 pressure, so that the surface of the base paper 10 forms a coating material layer with a textured structure, the temperature of the patterned roller 20 is 10°C-15°C, the pressing speed is 10r / min-15r / min, and the pressing force is 1N-3N, Obtain semi-cured rele...

Embodiment 2

[0042] A preparation method of water-based leather release paper, comprising the steps of:

[0043] S1: provide base paper 10, coating materials and a coating machine, the coating machine includes a patterned roller 20, an auxiliary roller in contact with the surface of the patterned roller 20, a coating head 30 located at the upper end of the patterned roller 20, and A cooling roll 40 positioned at the rear end of the patterned roll 20;

[0044] S2: Put the base paper 10 between the pattern roller 20 and the auxiliary roller, pour the coating material through the coating head 30 to the middle of the pattern roller 20 and the base paper 10, and apply the coating material to the base paper 10 through the pattern roller 20 pressure, so that the surface of the base paper 10 forms a coating material layer with a textured structure, the temperature of the patterned roller 20 is 10°C-15°C, the pressing speed is 10r / min-15r / min, and the pressing force is 1N-3N, Obtain semi-cured rel...

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Abstract

The invention discloses a preparation method of water-based leather release paper, which comprises the following steps: placing body paper between a pattern roller and an auxiliary roller, spraying a film spraying material between the pattern roller and the body paper through a film spraying head, applying pressure to the body paper sprayed with the film spraying material through the pattern roller so as to form a film spraying material layer with a pattern structure on the surface of the body paper, so as to obtain semi-cured release paper, wherein the film spraying direction of the film spraying head does not coincide with the tangential direction of a contact point of the body paper on the pattern roller, and the film spraying head is arranged on the side away from the pattern roller; and cooling the semi-cured release paper through a cooling roller to obtain the water-based leather release paper. By adjusting the positions of the film spraying head and the pattern roller, the curing of resin on paper can be more uniformly heated, and then through the step-by-step cooling cooperation of the pattern roller and the cooling roller, the temperature is slowly reduced, so that the obtained release paper has a better anti-curling effect, and the gloss and haze of patterns meet the requirements; and 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 water-based leather release paper. Background technique [0002] Release paper is a kind of coated paper, which is usually composed of a paper base layer and a release coating layer. Compared with the structure of general coated paper, the main difference is that the coating surface has a concave-convex pattern structure. [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 leat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H23/46D21H23/78D21H25/06D21H25/00D21H27/00
CPCD21H23/46D21H23/78D21H25/06D21H25/005D21H27/001Y02P70/62
Inventor 曾冲林张锋
Owner SHENZHEN WANJI TECH CO LTD
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