Release paper with high water absorption

Abstract

The utility model discloses release paper with high water absorption, which relates to the technical field of release paper and comprises a water absorption layer, a release paper base layer, a silicone oil layer, a waterproof layer, an isolating layer, a water absorption filling layer and a sealing insertion strip. The waterproof layer is subjected to waterproof treatment on the outer side of the isolating layer, so that the release paper can be effectively prevented from absorbing water accidentally when the release paper does not need to absorb water; after the sealing insertion strip is pulled out, water liquid can penetrate through the insertion hole in the isolation layer to enter the water absorption filling layer to carry out water absorption work; after the waterproof layer is torn off, the isolating layer makes contact with water on the surface of the car window, the water penetrates through the isolating layer and enters the water-absorbing filling layer, the water-absorbing filling layer conducts water-absorbing treatment on the water, the high water-absorbing polymer in the water-absorbing filling layer can effectively guarantee the high water-absorbing performance of the release paper, and the utilization rate of the release paper can be effectively increased; the vehicle window film pasting convenience can be effectively improved, and the release paper is convenient and fast to absorb water.

Description

Technical Field

[0001] The utility model relates to the technical field of release paper, in particular to highly water-absorbent release paper. Background Art

[0002] Release paper, also known as silicone paper and anti-stick paper, is mainly used to isolate sticky objects, such as tape, and generally needs to be peeled off and discarded when used. Car film is a thin film-like object pasted on the front and rear windshields, side windows and sunroofs of vehicles. This thin film-like object is also called solar film or thermal insulation film; release paper is a major component of thermal insulation film. When using it, tear off the release paper and then stick the thermal insulation film on the car window glass.

[0003] Patent (CN218660880U) discloses an anti-freezing release paper, including a release paper body, the release paper body including a bottom paper layer, a release paper base layer and a silicone oil layer, the release paper base layer including an enhanced thermal insulation layer, an EVA film layer and a polyester film layer, the enhanced thermal insulation layer including a polycarbonate film layer, a polyvinyl chloride film layer and a PE film layer, and the top of the bottom paper layer is fixedly connected to the bottom of the release paper base layer. The utility model provides a silicone oil layer, and methyl silicone oil has good chemical stability, insulation, and good hydrophobicity. Through the coordination of the release paper body, the bottom paper layer, the release paper base layer, the silicone oil layer, the enhanced thermal insulation layer, the EVA film layer, the polyester film layer, the polycarbonate film layer, the polyvinyl chloride film layer and the PE film layer, the problem of the release paper not having an antifreezing function, resulting in damage and separation in a low temperature environment, resulting in the problem of being unable to be used at work.

[0004] When the release paper in the above patent document is used on a car film, it is discarded after being torn off, just like other car film release papers, and the utilization rate is not high. Utility Model Content

[0005] The purpose of the utility model is to provide a highly absorbent release paper to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: highly water-absorbent release paper, comprising a water-absorbent layer, a release paper base layer and a silicone oil layer, wherein the release paper base layer is arranged between the water-absorbent layer and the silicone oil layer, the water-absorbent layer comprises a waterproof layer, an isolation layer and a water-absorbent filling layer, the isolation layer is arranged between the waterproof layer and the water-absorbent filling layer, the water-absorbent filling layer is arranged between the isolation layer and the release paper base layer, the water-absorbent filling layer is filled with a highly water-absorbent polymer, and a plurality of sealing strips are arranged on the surface of the waterproof layer, and the sealing strips penetrate through the isolation layer and extend to the inside of the water-absorbent filling layer.

[0007] Furthermore, a first highly water-absorbent polymer layer is disposed on a side of the inner wall of the water-absorbent filling layer close to the isolation layer, and a second highly water-absorbent polymer layer is disposed on a side of the inner wall of the water-absorbent filling layer away from the isolation layer.

[0008] Furthermore, the distance between the first super absorbent polymer layer and the second super absorbent polymer layer is greater than the sum of the thicknesses of the first super absorbent polymer layer and the second super absorbent polymer layer.

[0009] Furthermore, a sealing ball is provided on one end of the outer wall of the sealing strip close to the waterproof layer, and a sealing groove matching the sealing ball is provided on one side of the outer wall of the isolation layer close to the waterproof layer.

[0010] Furthermore, the isolation layer and the water-absorbing filling layer are both provided with insertion holes matching the sealing insert strips, and the sealing groove is connected with the insertion holes.

[0011] Furthermore, a plurality of protrusions are provided on the outer wall of the waterproof layer close to the isolation layer, and a groove matching the protrusions is provided on the outer wall of the isolation layer; the cross section of the protrusions is a regular hexagonal structure.

[0012] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0013] 1. The utility model is provided with a water-absorbing layer, a release paper base layer, a silicone oil layer, a waterproof layer, an isolation layer, a water-absorbing filling layer and a sealing insert. The waterproof layer is waterproofed on the outside of the isolation layer, which can effectively prevent the release paper from accidentally absorbing water when it is not needed to absorb water. The isolation layer is isolated between the waterproof layer and the water-absorbing filling layer, which can effectively prevent the water from directly passing through the waterproof layer and contacting the water-absorbing filling layer. The sealing insert passes through the isolation layer and penetrates the isolation layer, so that after the sealing insert is pulled out, the water can pass through the jack on the isolation layer and enter the water-absorbing filling layer to absorb water. When in use, after the release paper is torn off the window film, the window needs to be sprayed with water for cleaning during the film application process. At this time, the waterproof layer of the release paper can be torn off, and the isolation layer is directly in contact with the external environment. At the same time, the sealing strip is torn off together with the waterproof layer, and the sealing strip is pulled out from the isolation layer and the water-absorbing filling layer, so that the water-absorbing filling layer is in contact with the external environment through the perforations caused by the sealing strip being pulled out to absorb water. After tearing off the waterproof layer, the isolation layer is brought into contact with the water on the surface of the vehicle window, and the water passes through the isolation layer into the water-absorbing filling layer, and the water-absorbing filling layer absorbs the water. The highly absorbent polymer inside the water-absorbing filling layer can effectively ensure the high water absorption performance of the release paper, effectively improve the utilization rate of the release paper, effectively improve the convenience of window film, and the release paper water absorption operation is convenient and quick.

[0014] 2. In the utility model, the design of the sealing ball and the sealing groove can effectively improve the sealing performance between the sealing strip and the insertion hole, further strengthen the sealing performance between the waterproof layer and the isolation layer, and further improve the waterproof performance of the release paper during normal use; the first highly absorbent polymer layer absorbs water on the side of the inner wall of the absorbent filling layer close to the isolation layer, and the second highly absorbent polymer layer absorbs water on the side of the inner wall of the absorbent filling layer away from the isolation layer; after the protrusion with a regular hexagonal structure is inserted into the groove, the waterproof layer and the isolation layer can be effectively limited and pressed to connect, which ensures the connection effect between the waterproof layer and the isolation layer and makes it easier to peel off the waterproof layer and the isolation layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is the front view of the utility model as a whole;

[0017] Figure 2 It is a front cross-sectional view of the utility model as a whole;

[0018] Figure 3 This utility model Figure 2 The enlarged schematic diagram of point A in the middle;

[0019] Figure 4 This utility model Figure 2 The enlarged schematic diagram of point B in the middle;

[0020] In the figure: 1. water-absorbing layer; 2. release paper base layer; 3. silicone oil layer; 4. waterproof layer; 5. isolation layer; 6. water-absorbing filling layer; 7. sealing insert; 8. first highly water-absorbing polymer layer; 9. second highly water-absorbing polymer layer; 10. insertion hole; 11. sealing ball; 12. sealing groove; 13. bump; 14. groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4The utility model provides a technical solution: a highly water-absorbent release paper, comprising a water-absorbent layer 1, a release paper base layer 2 and a silicone oil layer 3, wherein the release paper base layer 2 is arranged between the water-absorbent layer 1 and the silicone oil layer 3, the water-absorbent layer 1 comprises a waterproof layer 4, an isolation layer 5 and a water-absorbent filling layer 6, the isolation layer 5 is arranged between the waterproof layer 4 and the water-absorbent filling layer 6, the water-absorbent filling layer 6 is arranged between the isolation layer 5 and the release paper base layer 2, the water-absorbent filling layer 6 is filled with a highly water-absorbent polymer, a plurality of sealing inserts 7 are arranged on the surface of the waterproof layer 4, the sealing inserts 7 penetrate the isolation layer 5 and extend to the inside of the water-absorbent filling layer 6; a sealing ball 11 is arranged on the outer wall of the sealing insert 7 close to the waterproof layer 4, and a sealing groove 12 matching the sealing ball 11 is arranged on the outer wall of the isolation layer 5 close to the waterproof layer 4; a plug hole 10 matching the sealing insert 7 is opened on the isolation layer 5 and the water-absorbent filling layer 6, and the sealing groove 12 is connected with the plug hole 10.

[0023] A first super absorbent polymer layer 8 is provided on the side of the inner wall of the water-absorbing filling layer 6 close to the isolation layer 5, and a second super absorbent polymer layer 9 is provided on the side of the inner wall of the water-absorbing filling layer 6 away from the isolation layer 5. The first super absorbent polymer layer 8 absorbs water on the side of the inner wall of the water-absorbing filling layer 6 close to the isolation layer 5, and the second super absorbent polymer layer 9 absorbs water on the side of the inner wall of the water-absorbing filling layer 6 away from the isolation layer 5; the distance between the first super absorbent polymer layer 8 and the second super absorbent polymer layer 9 is greater than the sum of the thicknesses of the first super absorbent polymer layer 8 and the second super absorbent polymer layer 9, and the thicknesses of the first super absorbent polymer layer 8 and the second super absorbent polymer layer 9 are limited, so that the first super absorbent polymer layer 8 and the second super absorbent polymer layer 9 can fully absorb water and swell inside the water-absorbing layer 1.

[0024] The outer wall of the waterproof layer 4 is provided with a plurality of protrusions 13 on the side close to the isolation layer 5, and the outer wall of the isolation layer 5 is provided with grooves 14 matching the protrusions 13; the cross-section of the protrusions 13 is a regular hexagonal structure, and the waterproof layer 4 and the isolation layer 5 are connected by the protrusions 13 and the grooves 14. After the protrusions 13 with the regular hexagonal structure are inserted into the grooves 14, the waterproof layer 4 and the isolation layer 5 can be effectively limited and pressed to achieve a connection effect, which ensures the connection effect between the waterproof layer 4 and the isolation layer 5 and makes it easier to peel off the waterproof layer 4 and the isolation layer 5.

[0025] The working principle of this utility model:

[0026] Refer to the instruction manual Figure 1-Figure 4The utility model is provided with a water-absorbing layer 1, a release paper base layer 2, a silicone oil layer 3, a waterproof layer 4, an isolation layer 5, a water-absorbing filling layer 6 and a sealing insert 7. The water-absorbing layer 1 provides high water-absorbing performance for the release paper, the release paper base layer 2 provides basic support for the release paper, and the silicone oil layer 3 ensures the easy peeling performance of the release paper; the waterproof layer 4 is waterproofed on the outside of the isolation layer 5, which can effectively prevent the release paper from accidentally absorbing water when it is not needed to absorb water, and the isolation layer 5 is isolated between the waterproof layer 4 and the water-absorbing filling layer 6, which can effectively prevent the water from directly crossing the waterproof layer 4 and contacting the water-absorbing filling layer 6, and the sealing insert 7 passes through the isolation layer 5 and penetrates the isolation layer 5, so that after the sealing insert 7 is pulled out, the water can pass through the insertion hole 10 on the isolation layer 5 and enter the water-absorbing filling layer 6 to absorb water; when in use, after the release paper is torn off from the window film, during the process of film pasting, the window needs to be sprayed with water for cleaning, at this time, the waterproof layer of the release paper can be 4 is torn off, the isolation layer 5 is directly in contact with the external environment, and the sealing strip 7 is torn off together with the waterproof layer 4, and the sealing strip 7 is pulled out from the isolation layer 5 and the water-absorbing filling layer 6, so that the water-absorbing filling layer 6 contacts the external environment through the perforations caused by the sealing strip 7 being pulled out to absorb water. After the waterproof layer 4 is torn off, the isolation layer 5 is in contact with the water on the surface of the vehicle window, and the water passes through the isolation layer 5 into the water-absorbing filling layer 6, and the water-absorbing filling layer 6 absorbs the water. The highly absorbent polymer inside the water-absorbing filling layer 6 can effectively ensure the high water absorption performance of the release paper, effectively improve the utilization rate of the release paper, and effectively improve the convenience of the vehicle window film, and the release paper water absorption operation is convenient and quick; the design of the sealing ball 11 and the sealing groove 12 can effectively improve the sealing performance between the sealing strip 7 and the insertion hole 10, can further strengthen the sealing performance between the waterproof layer 4 and the isolation layer 5, and further improve the waterproof performance of the release paper during normal use.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A highly water-absorbent release paper comprising a water-absorbent layer (1), a release paper base layer (2) and a silicone oil layer (3). Features: The release paper base layer (2) is arranged between the water-absorbing layer (1) and the silicone oil layer (3); the water-absorbing layer (1) comprises a waterproof layer (4), an isolation layer (5) and a water-absorbing filling layer (6); the isolation layer (5) is arranged between the waterproof layer (4) and the water-absorbing filling layer (6); the water-absorbing filling layer (6) is arranged between the isolation layer (5) and the release paper base layer (2); the water-absorbing filling layer (6) is filled with a highly water-absorbing polymer; a plurality of sealing strips (7) are arranged on the surface of the waterproof layer (4); the sealing strips (7) penetrate the isolation layer (5) and extend into the water-absorbing filling layer (6).

2. The highly absorbent release paper according to claim 1, Features: A first highly water-absorbent polymer layer (8) is provided on the inner wall of the water-absorbent filling layer (6) on the side close to the isolation layer (5), and a second highly water-absorbent polymer layer (9) is provided on the inner wall of the water-absorbent filling layer (6) on the side away from the isolation layer (5).

3. The highly absorbent release paper according to claim 2, Features: The distance between the first super absorbent polymer layer (8) and the second super absorbent polymer layer (9) is greater than the sum of the thicknesses of the first super absorbent polymer layer (8) and the second super absorbent polymer layer (9).

4. The highly absorbent release paper according to claim 1, Features: A sealing ball (11) is provided on one end of the outer wall of the sealing insert (7) close to the waterproof layer (4), and a sealing groove (12) matching the sealing ball (11) is provided on one side of the outer wall of the isolation layer (5) close to the waterproof layer (4).

5. The highly absorbent release paper according to claim 4, Features: The isolation layer (5) and the water-absorbing filling layer (6) are both provided with an insertion hole (10) matching the sealing insert strip (7), and the sealing groove (12) is connected to the insertion hole (10).

6. The highly absorbent release paper according to claim 1, Features: A plurality of protrusions (13) are provided on the outer wall of the waterproof layer (4) close to the isolation layer (5), and a groove (14) matching the protrusions (13) is provided on the outer wall of the isolation layer (5); the cross section of the protrusion (13) is a regular hexagonal structure.

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