Preparation method of release paper with double-sided film

A release paper and coating technology, applied in paper, papermaking, paper coating and other directions, can solve the problems of non-wear resistance, poor moisture resistance, limited use range of release paper, etc. Effect

Pending Publication Date: 2021-05-07
SHENZHEN WANJI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the existing release papers are coated on one side, because the range of use of the release paper obtained by one-sided coating is relatively limited, it cannot be used in the fields of Erlang fur, PVC, microfiber leather, etc. Moreover, the release paper obtained by laminating on one side also has the disadvantages of poor moisture resistance and non-wear resistance, which greatly limits the scope of use of the release paper.

Method used

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  • Preparation method of release paper with double-sided film

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preparation example Construction

[0026] The invention provides a method for preparing a release paper with double-sided coating, comprising the following preparation steps:

[0027] S1: Provide the base paper 10, the first coating material, the second coating material and the coating machine; the base paper 10 has a front surface and a back surface; The first coating head 30 on the upper end of the patterned roller 20, the first auxiliary roller 40 in contact with the surface of the first patterned roller 20, the second patterned roller 50 positioned at the rear end of the first patterned roller 20, and the first patterned roller 50 connected to the first patterned roller 20. The second auxiliary roller 70 that the surface of the two embossed rollers 50 contacts, and the second coating head 60 positioned at the upper end of the second embossed rollers 50, such as figure 1 As shown; the first coating material includes the following components by weight: 90-94 parts of polypropylene, 3-5 parts of polyethylene, ...

Embodiment 1

[0034] A preparation method of a release paper with a double-sided coating, comprising the following preparation steps:

[0035] S1: Provide the base paper 10, the first coating material, the second coating material and the coating machine; the base paper 10 has a front surface and a back surface; The first coating head 30 on the upper end of the patterned roller 20, the first auxiliary roller 40 in contact with the surface of the first patterned roller 20, the second patterned roller 50 positioned at the rear end of the first patterned roller 20, and the first patterned roller 50 connected to the first patterned roller 20. The second auxiliary roller 70 contacted by the surface of the second patterned roller 50, and the second coating head 60 located at the upper end of the second patterned roller 50;

[0036] S2: Place the base paper 10 between the first patterned roller 20 and the first auxiliary roller 40, pour the first coating material between the first patterned roller ...

Embodiment 2

[0039] A preparation method of a release paper with a double-sided coating, comprising the following preparation steps:

[0040] S1: Provide the base paper 10, the first coating material, the second coating material and the coating machine; the base paper 10 has a front surface and a back surface; The first coating head 30 on the upper end of the patterned roller 20, the first auxiliary roller 40 in contact with the surface of the first patterned roller 20, the second patterned roller 50 positioned at the rear end of the first patterned roller 20, and the first patterned roller 50 connected to the first patterned roller 20. The second auxiliary roller 70 contacted by the surface of the second patterned roller 50, and the second coating head 60 located at the upper end of the second patterned roller 50;

[0041] S2: Place the base paper 10 between the first patterned roller 20 and the first auxiliary roller 40, pour the first coating material between the first patterned roller ...

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Abstract

The invention discloses a preparation method of release paper with a double-sided film. The method comprises the following preparation steps: spraying a first film material between a first pattern roller and the front surface of body paper through a first film head, so that a first film material layer with a first pattern structure is formed on the front surface of the body paper, and the body paper with the first film material layer is obtained; and spraying a second film material between a second pattern roller and the back surface of the body paper through a second film head, so that a second film material layer with a second pattern structure is formed on the back surface of the body paper, and the release paper with a double-sided film is obtained. According to the invention, the release paper with a double-sided film is obtained by using different lamination processes on the two sides of the body paper, and the release paper is wrapped by the double-sided film to form 360-degree dead-corner-free protection, so that the release paper has the advantages of better dust prevention, moisture prevention, wear resistance and the like, the application range of the release paper is greatly expanded, and the release paper can be applied to various fields.

Description

technical field [0001] The invention relates to the technical field of production technology of release paper, in particular to a preparation method of release paper with double-sided coating. 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] Most of the existing release papers are coated on one side, because the range of use of the release paper obtained by one-sided coating is relatively limited, it cannot be used in the fields of Erlang fur, PVC, microfiber leather, etc. Moreover, the release paper obtained by laminating on one side also has disadvantages such as poor moisture resistance and non-wear resistance, which greatly limits the scope of use of the release paper. Contents of the invention [0004] In order to overcome...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H23/50D21H19/84
CPCD21H23/50D21H19/84
Inventor 曾冲林张锋
Owner SHENZHEN WANJI TECH CO LTD
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