Release paper with water-based coating replacing PE (polyethylene) spraying film
By designing a combined structure of water-based coating, reinforcing layer, heat insulation layer and protective layer on the release paper, the environmental pollution problem caused by the non-degradability of PE film is solved, and the environmental friendliness and strength are improved.
Patent Information
- Application Number
- CN202423165921.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing release paper requires a PE film for protection during the application of release agent, resulting in excessive film usage and non-degradable film, causing environmental pollution.
A water-based coating is used instead of PE film. The structure consists of a base layer, a reinforcing layer, a water-based coating, a release agent layer, a heat insulation layer, and a protective layer. The base layer is made of pure wood pulp paper, the reinforcing layer is made of synthetic fiber paper, the water-based coating is a UV-cured coating, the release agent layer is a silicone oil coating, the heat insulation layer is made of cellulose heat insulation paper, and the protective layer is a matte PE film, which respectively improves structural strength, prevents adhesion, provides heat insulation, and protects the material.
It reduces the amount of PE film used, lowers environmental pollution, improves the structural strength and temperature resistance of release paper, and maintains environmental friendliness.
Smart Images

Figure CN223880095U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of release paper, specifically to a water-based coating replaces PE membrane release paper. BACKGROUND
[0002] Release paper is a special kind of paper that has a layer of release agent coated on its surface to prevent sticking to other materials and facilitate separation. It is commonly used in packaging, food processing, printing, medical devices, construction and other fields to provide isolation and protection.
[0003] In general, release paper has a wide range of applications in various fields. The coating of release agent gives the paper anti-sticking properties, making it easier to produce, package and transport products.
[0004] Currently, release paper needs to be coated with a release agent for use. To prevent the release agent from penetrating into the paper, a PE film is usually used to protect the paper and the coated release agent. However, the use of PE film is excessive and non-degradable, causing environmental pollution. Therefore, improvements are needed. SUMMARY
[0005] The utility model aims to provide a water-based coating replaces PE membrane release paper, solves the problem of excessive use of PE film and non-degradable environmental pollution.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a water-based coating replaces PE membrane release paper, including base layer, the outside of base layer is provided with two symmetrical distribution reinforcing layer, one of reinforcing layer is coated with water-based coating on the outside, the outside of water-based coating is coated with release agent layer, the outside of another reinforcing layer is provided with heat insulation layer, the outside of heat insulation layer is provided with protective layer.
[0007] Preferably, the base layer is made of full wood pulp raw paper material, and the thickness of the base layer is 40 microns. The base layer is the main structure of the release paper.
[0008] Preferably, the reinforcing layer is made of synthetic fiber paper material, and the thickness of the reinforcing layer is 36 microns. The reinforcing layer can improve the structural strength of the release paper and prevent deformation to some extent.
[0009] Preferably, the water-based coating is a UV light-cured coating, and the coating thickness of the water-based coating is 12 microns. The water-based coating can replace PE film to coat the release agent, which is more environmentally friendly.
[0010] Preferably, the release agent layer is a silicone oil coating, and the thickness of the release agent layer is 10 microns. The release paper is designed to achieve the purpose of preventing adhesion.
[0011] Preferably, the heat insulation layer is a cellulose heat insulation paper material, and the thickness of the heat insulation layer is 28 microns. The heat insulation layer is designed to insulate the internal structure of the release paper to avoid deformation caused by temperature changes.
[0012] Preferably, the protective layer is a matte PE film material, and the thickness of the protective layer is 35 microns. The protective layer is designed to protect the outer surface of the release paper.
[0013] Compared with the prior art, the utility model has the beneficial effects as follows:
[0014] The utility model discloses a base layer, and the base layer is the main material of the release paper. The reinforcing layer can improve the structural strength of the release paper. The water-based coating is coated on the outer side of the reinforcing layer, and the release agent layer is directly coated on the outer side of the water-based coating. The water-based coating can prevent penetration, so that the use of PE film is reduced, and environmental pollution is reduced. The water-based coating is degradable and more environmentally friendly. The heat insulation layer can reduce the influence of temperature on the internal structure of the release paper to a certain extent, and the deformation of the release paper does not affect use. The protective layer can protect the outer surface of the release paper. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the overall structure perspective drawing of the utility model;
[0016] Figure 2 It is the front view of the utility model Figure 1 .
[0017] In the drawing: 1, base layer; 2, reinforcing layer; 3, water-based coating; 4, release agent layer; 5, heat insulation layer; 6, protective layer. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0019] Please refer to Figure 1 , Figure 2The utility model provides a water-based coating replaces PE film coated release paper, including base layer 1, base layer 1 is full wood pulp raw paper material quality, the thickness of base layer 1 is 40 mu m, through the design base layer 1, base layer 1 is the main body structure of release paper, the outside of base layer 1 is provided with two symmetrical distribution's reinforcing layer 2, reinforcing layer 2 is synthetic fiber paper material quality, the thickness of reinforcing layer 2 is 36 mu m, through the design reinforcing layer 2, can promote the structural strength of release paper, can prevent the deformation of release paper to a certain extent.
[0020] Please refer to Figure 1 、 Figure 2 Wherein the outside of one reinforcing layer 2 is coated with water-based coating 3, water-based coating 3 is UV photocuring coating, the coating thickness of water-based coating 3 is 12 mu m, through the design water-based coating 3, can replace PE film for coating release agent, more environmental protection, the outside of water-based coating 3 is coated with release agent layer 4, release agent layer 4 is silicone oil coating, the thickness of release agent layer 4 is 10 mu m, through the design release agent layer 4, so that release paper reaches the purpose of anti-adhesion.
[0021] Please refer to Figure 1 、 Figure 2 The outside of another reinforcing layer 2 is provided with heat insulation layer 5, heat insulation layer 5 is cellulose heat insulation paper material quality, the thickness of heat insulation layer 5 is 28 mu m, through the design heat insulation layer 5, can heat insulation to release paper internal structure, avoid temperature change to cause the deformation of release paper, the outside of heat insulation layer 5 is provided with protective layer 6, protective layer 6 is matt PE film material quality, the thickness of protective layer 6 is 35 mu m, through the design protective layer 6, can carry out the protection to the outer surface of release paper.
[0022] The utility model discloses a kind of off-type papers, including base layer 1, reinforcing layer 2, water-based coating 3, release agent layer 4 and heat insulation layer 5, and protective layer 6 is additionally arranged on the outer surface of release agent layer 4, base layer 1 is full wood pulp raw paper material, base layer 1 is the main structure of release paper, reinforcing layer 2 is synthetic fiber paper material, can promote the structural strength of release paper, can prevent the deformation of release paper to a certain extent, water-based coating 3 is UV light solidification coating, can replace PE film for coating release agent, More environmentally friendly, release agent layer 4 is silicone oil coating, so that release paper reaches the purpose of anti-adhesion, heat insulation layer 5 is cellulose heat insulation paper material, can heat insulation is carried out to release paper internal structure, avoid temperature change to cause the deformation of release paper, protective layer 6 is matt PE film material, can carry out protection to release paper outer surface.The effect of base layer 1, base layer 1 is the main material of release paper, the structural strength in release paper can be promoted by the effect of reinforcing layer 2, the effect of water-based coating 3, water-based coating 3 is coated on the outside of reinforcing layer 2, and release agent layer 4 can be directly coated on the outside of water-based coating 3, water-based coating 3 reaches the purpose of anti-permeation, so that PE film is less, reduce environmental pollution, while water-based coating 3 can be degraded, More environmentally friendly, the effect of heat insulation layer 5, can reduce the influence of temperature on release paper internal structure to a certain extent, avoid the deformation of release paper to influence use, and release paper outer surface can be protected under the effect of protective layer 6.
[0023] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A water-based coating instead of PE film-coated release paper, comprising a base layer (1), characterized in that: The outer side of the base layer (1) is provided with two symmetrical reinforcing layers (2), one of which is coated with a water-based coating (3) on the outer side, and the outer side of the water-based coating (3) is coated with a release agent layer (4), and the outer side of the other reinforcing layer (2) is provided with a heat insulation layer (5), and the outer side of the heat insulation layer (5) is provided with a protective layer (6).
2. The water-based coating-replaced PE-laminated release paper according to claim 1, wherein: The base layer (1) is a full wood pulp raw paper material, and the thickness of the base layer (1) is 40μm.
3. The water-based coating-replaced PE-laminated release paper according to claim 1, wherein: The reinforcing layer (2) is a synthetic fiber paper material, and the thickness of the reinforcing layer (2) is 36μm.
4. The water-based coating-replaced PE-laminated release paper according to claim 1, wherein: The water-based coating (3) is a UV light curing coating, and the coating thickness of the water-based coating (3) is 12μm.
5. The water-based coating-replaced PE-laminated release paper according to claim 1, wherein: The release agent layer (4) is a silicone oil coating, and the thickness of the release agent layer (4) is 10μm.
6. The water-based coating-replaced PE-laminated release paper according to claim 1, wherein: The heat insulation layer (5) is a cellulose heat insulation paper material, and the thickness of the heat insulation layer (5) is 28μm.
7. The water-based coating-replaced PE-laminated release paper according to claim 1, wherein: The protective layer (6) is a matte PE film material, and the thickness of the protective layer (6) is 35μm.