Melamine impregnated paper with high color fastness to light

Abstract

The utility model discloses melamine impregnated paper with high color fastness to light, and particularly relates to the technical field of melamine impregnated paper, which comprises a central layer, a lower protective layer is arranged at the top end of the central layer, an upper protective layer is arranged at the top end of the lower protective layer, the upper protective layer comprises light-proof shading paper, and the light-proof shading paper is arranged at the top end of the central layer. A plurality of adhesive tapes easy to tear are fixedly arranged at the bottom end of the shading paper, the shading paper is adhered to the lower protective layer through the adhesive tapes easy to tear, a plurality of observation openings are formed in the shading paper, a cover curtain is arranged in each observation opening, and the central layer comprises upper base paper. According to the melamine impregnated paper, the upper protective layer is arranged on the surface of the lower protective layer, and the shading paper has a shading effect and can isolate light rays in an external environment, so that the central layer and the lower protective layer are not influenced by the external light rays before being used, the color fastness to light of the melamine impregnated paper is further improved, and the service life of the melamine impregnated paper is further prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to melamine impregnated paper technical field, concretely relates to a melamine impregnated paper with high light fastness. BACKGROUND

[0002] Melamine impregnated paper is also called melamine paper, which is formed by impregnating ordinary paper with amino resin and drying to a certain extent;

[0003] In the prior art, decorative paper with patterns is made into melamine paper, which is then compounded on artificial board through hot pressing. The board thus made can be used as wallboard, furniture, etc.

[0004] Melamine impregnated paper needs to have sufficient light fastness, which refers to the ability of an object to maintain its color and luster under sunlight. The level of light fastness determines the service life of melamine impregnated paper and its related products. For example, the melamine impregnated paper with high light fastness disclosed in CN215662339U.

[0005] The prior art improves light fastness by blocking a part of ultraviolet rays. However, once melamine impregnated paper is produced and processed, it will be exposed to external light. Therefore, even if it is not used, its service life is still decreasing. Thus, the light fastness of melamine impregnated paper in the prior art needs to be further improved. SUMMARY

[0006] The utility model aims to provide a melamine impregnated paper with high light fastness. The light-blocking paper can block external light, so that the central layer and the lower protective layer are not affected by external light before use, further improving the light fastness and service life of melamine impregnated paper.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a melamine impregnated paper with high light fastness, comprising a central layer, wherein the top end of the central layer is provided with a lower protective layer, and the top end of the lower protective layer is provided with an upper protective layer.

[0008] The upper protective layer comprises light-blocking paper, and the bottom end of the light-blocking paper is fixedly provided with a plurality of tearable adhesive strips. The light-blocking paper is adhered to the lower protective layer through the tearable adhesive strips. The tearable adhesive strips can be easily torn off without leaving any traces.

[0009] A plurality of observation openings are formed in the light-blocking paper, and a curtain is arranged in each observation opening. One end of the curtain is fixedly connected to the inner wall of the observation opening, and the outline of the curtain matches that of the observation opening.

[0010] Further, the center layer comprises an upper base paper, the upper base paper is fixed with a flame-retardant fiber mesh cloth at the top end, the flame-retardant fiber mesh cloth is made of aramid fiber or chlorofiber, and a flame retardant is added inside, the upper base paper is fixed with a tensile fiber mesh cloth at the bottom end, the main component of the tensile fiber mesh cloth is polypropylene fiber, the tensile fiber mesh cloth can improve the strength of the whole center layer, and the flame-retardant fiber mesh cloth is fixed with a printed paper layer printed with patterns at the top end.

[0011] Further, the lower protective layer comprises an anti-ultraviolet membrane, the anti-ultraviolet membrane can be selected as a UV film, ultraviolet radiation is filtered and absorbed by using the special structure of the anti-ultraviolet membrane, the anti-ultraviolet membrane is fixed at the top end of the printed paper layer, and the anti-ultraviolet membrane is fixed with a PVC film at the top end.

[0012] Further, the PVC film is fixed with a protective film at the top end, the protective film is a polyurethane film, has the characteristics of scratch resistance, yellowing resistance and super toughness, can isolate water and oxygen, and protects the anti-ultraviolet membrane and the PVC film, the protective film is sprayed with a fluoride coating at the top end, the fluoride coating can avoid oil stains from being attached to the surface, and the easy-to-tear adhesive tape is attached to the surface of the fluoride coating.

[0013] Further, the center layer is provided with a bottom layer at the bottom end, the bottom layer comprises a hot melt fiber mesh fixed at the bottom end of the tensile fiber mesh cloth, the main component of the hot melt fiber mesh is EVA resin, the hot melt fiber mesh melts at 70 DEG C, the hot melt fiber mesh is fixed with a lower base paper at the bottom end, a plurality of micro through holes are formed in the lower base paper, and the diameter of the micro through holes is 3mm.

[0014] Further, the lower base paper is fixed with a glue layer at the bottom end, the glue layer does not block the micro through holes, and the glue layer is attached with release paper at the bottom end.

[0015] In the above technical solution, the technical effects and advantages of the utility model are provided.

[0016] By arranging the upper protective layer on the surface of the lower protective layer, the shading paper has the effect of shading light, can isolate light in the external environment, so that the center layer and the lower protective layer are not affected by external light before use, and the light fastness and service life of the melamine impregnated paper are further improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the utility model, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0018] Figure 1It is a sectional view of the utility model;

[0019] Figure 2 It is a center layer structure diagram of the utility model;

[0020] Figure 3 It is an explosion view of the bottom layer of the utility model;

[0021] Figure 4 It is a lower protective layer structure diagram of the utility model;

[0022] Figure 5 It is an explosion view of the upper protective layer of the utility model.

[0023] Mark explanation:

[0024] 1, center layer;101, upper base paper;102, tensile fiber mesh;103, flame-retardant fiber mesh;104, printing paper layer;2, bottom layer;201, lower base paper;202, micro via hole;203, hot melt fiber mesh;204, adhesive layer;205, release paper;3, lower protective layer;301, ultraviolet-resistant diaphragm;302, PVC film;303, protective film;304, fluoride coating;4, upper protective layer, 401, shading paper;402, observation port;403, cover curtain;404, easy-to-tear adhesive tape. Specific implementation

[0025] In order to make the technical personnel in the art better understand the technical scheme of the utility model, the utility model will be further introduced in detail below in conjunction with the drawings.

[0026] The utility model provides a kind of melamine impregnated paper with high light fastness as shown in Figures 1-5 The center layer 1 top is equipped with lower protective layer 3, and the lower protective layer 3 top is equipped with upper protective layer 4;

[0027] The upper protective layer 4 includes light-tight shading paper 401, and the shading paper 401 bottom is fixed with a plurality of easy-to-tear adhesive strips 404, and the shading paper 401 is adhered to the lower protective layer 3 by easy-to-tear adhesive strip 404, and the easy-to-tear adhesive strip 404 can be conveniently torn off without leaving traces;

[0028] A plurality of observation ports 402 are formed on the shading paper 401, the observation port 402 is equipped with cover curtain 403 inside, one end of the cover curtain 403 is fixedly connected with the inner wall of the observation port 402, and the cover curtain 403 is matched with the contour of the observation port 402.

[0029] The main part of the melamine impregnated paper is adhered with the upper protective layer 4 after production and processing, the main part of the upper protective layer 4 is the light shielding paper 401, the light shielding paper 401 has the function of shielding light, can isolate the light in the external environment, so that the central layer 1 and the lower protective layer 3 are not affected by the external light before use, further improve the light fastness and service life of the melamine impregnated paper, the light shielding paper 401 is adhered to the lower protective layer 3 through the easy-to-tear adhesive tape 404, when used formally, the light shielding paper 401 can be torn off from the surface of the lower protective layer 3 together with the easy-to-tear adhesive tape 404, which does not affect the normal use of the melamine impregnated paper;

[0030] An observation port 402 is formed on the light shielding paper 401, and a cover curtain 403 is arranged inside the observation port 402, the cover curtain 403 covers the observation port 402 and is not adhered to the lower protective layer 3, in the daily state, the cover curtain 403 closes the observation port 402, and has the function of shielding light, when it is necessary to check the pattern of the melamine impregnated paper, the cover curtain 403 is lifted upwards, and the pattern of the melamine impregnated paper can be observed through the observation port 402.

[0031] The melamine impregnated paper needs to have sufficient strength, as shown in Figure 1 , 2 The central layer 1 includes the upper base paper 101, the upper end of the upper base paper 101 is fixedly provided with the flame-retardant fiber mesh cloth 103, the flame-retardant fiber mesh cloth 103 can be made of aramid or chlorofiber, and an internal flame retardant is added, the bottom end of the upper base paper 101 is fixedly provided with the tensile fiber mesh cloth 102, the main component of the tensile fiber mesh cloth 102 is polypropylene fiber, which can improve the strength of the whole central layer 1, the top end of the flame-retardant fiber mesh cloth 103 is fixedly provided with the printed paper layer 104 printed with patterns, which improves the aesthetics of the melamine impregnated paper.

[0032] The flame-retardant fiber mesh cloth 103 and the tensile fiber mesh cloth 102 are arranged on the upper and lower sides of the upper base paper 101 respectively, the flame-retardant fiber mesh cloth 103 will not produce open flame after ignition, and the flame-retardant fiber mesh cloth 103 adds a flame retardant, which will decompose nitrogen, carbon dioxide and other gases after heating, these gases can dilute oxygen in the air, which can inhibit combustion, and improve the safety of the melamine impregnated paper, the main component of the tensile fiber mesh cloth 102 is polypropylene fiber, which has high elasticity and strength, can resist external pulling force, and improve the strength of the whole melamine impregnated paper.

[0033] In order to protect the central layer 1, as shown in Figure 1 , 4As shown, the lower protective layer 3 comprises an anti-ultraviolet diaphragm 301, which can be selected as a UV film, and uses its special structure to filter and absorb ultraviolet radiation. The anti-ultraviolet diaphragm 301 is fixed at the top end of the printed paper layer 104, and a PVC film 302 is fixed at the top end of the anti-ultraviolet diaphragm 301.

[0034] A protective film 303 is fixed at the top end of the PVC film 302. The protective film 303 is a polyurethane film, which has the characteristics of scratch resistance, yellowing resistance, and super toughness, and can isolate moisture and oxygen to protect the anti-ultraviolet diaphragm 301 and the PVC film 302. A fluoride coating 304 is sprayed at the top end of the protective film 303. The fluoride coating 304 can avoid oil stains from adhering to its surface. The easy-to-tear adhesive tape 404 is adhered to the surface of the fluoride coating 304.

[0035] When the melamine impregnated paper is in formal use, the upper protective layer 4 has been removed, and the lower protective layer 3 on the surface of the center layer 1 will protect the center layer 1. The fluoride coating 304 at the outermost side directly contacts with the external environment. The fluoride coating 304 has hydrophobicity and chemical inertness, which can avoid stains from adhering to its surface. The protective film 303 has the characteristics of toughness and wear resistance, which reduces the wear during use. The PVC film 302 covers the anti-ultraviolet diaphragm 301. The PVC film 302 has high transparency and corrosion resistance, which protects the anti-ultraviolet diaphragm 301. The anti-ultraviolet diaphragm 301 can filter ultraviolet rays, reducing the influence of sunlight on the center layer 1, so that the melamine impregnated paper has sufficient light fastness.

[0036] The melamine impregnated paper generally needs to be hot-pressed and combined with a board. Figure 1 3 As shown, the center layer 1 is provided with a bottom layer 2 at the bottom end. The bottom layer 2 comprises a hot melt fiber mesh 203 fixed at the bottom end of the tensile fiber mesh 102. The main component of the hot melt fiber mesh 203 is EVA resin, which will melt at 75°C. A lower base paper 201 is fixed at the bottom end of the hot melt fiber mesh 203. A plurality of micro through holes 202 are formed in the lower base paper 201, and the diameter of the micro through holes 202 is 3mm.

[0037] A glue layer 204 is fixed at the bottom end of the lower base paper 201. The glue layer 204 does not block the micro through holes 202. A release paper 205 is adhered to the bottom end of the glue layer 204.

[0038] ​When the melamine impregnated paper needs to be hot-pressed with the board, the release paper 205 is torn off, and the melamine impregnated paper is adhered to the surface of the clean and flat board through the adhesive layer 204, so as to preliminarily fix the melamine impregnated paper and the board, avoid deviation of the two in the hot-pressing process, and then hot-press the board, the hot-pressing temperature is 75-80℃, at this temperature, the hot-melt fiber net 203 melts and flows downward to the lower base paper 201 and the board through the micro through hole 202, and plays a bonding role between the two, and improves the connection strength of the melamine impregnated paper and the board.

[0039] The above only describes certain exemplary embodiments of the present application by way of illustration, and it is needless to say that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application for those skilled in the art. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A melamine impregnated paper with high light fastness, comprising a central layer (1), the top end of which is provided with a lower protective layer (3), characterized in that: The lower protective layer (3) is provided with an upper protective layer (4) at the top end. The upper protective layer (4) comprises an opaque shading paper (401), and a plurality of tearable adhesive strips (404) are fixedly arranged at the bottom end of the shading paper (401), and the shading paper (401) is adhered to the lower protective layer (3) through the tearable adhesive strips (404). A plurality of observation openings (402) are arranged on the shading paper (401), and a cover curtain (403) is arranged in each observation opening (402).

2. The melamine impregnated paper with high color fastness to light according to claim 1, characterized in that: The center layer (1) comprises an upper base paper (101), a flame-retardant fiber mesh cloth (103) is fixedly arranged at the top end of the upper base paper (101), a tensile fiber mesh cloth (102) is fixedly arranged at the bottom end of the upper base paper (101), and a printed paper layer (104) printed with patterns is fixedly arranged at the top end of the flame-retardant fiber mesh cloth (103).

3. The melamine impregnated paper with high color fastness to light according to claim 2, characterized in that: The lower protective layer (3) comprises an anti-ultraviolet diaphragm (301), the anti-ultraviolet diaphragm (301) is fixedly arranged at the top end of the printed paper layer (104), and a PVC film (302) is fixedly arranged at the top end of the anti-ultraviolet diaphragm (301).

4. The melamine impregnated paper with high color fastness to light according to claim 3, characterized in that: A protective film (303) is fixedly arranged at the top end of the PVC film (302), a fluoride coating (304) is sprayed at the top end of the protective film (303), and the tearable adhesive strips (404) are adhered to the surface of the fluoride coating (304).

5. The melamine impregnated paper with high color fastness to light according to claim 1, characterized in that: The center layer (1) is provided with a bottom layer (2) at the bottom end, the bottom layer (2) comprises a hot melt fiber mesh (203) fixedly arranged at the bottom end of the tensile fiber mesh cloth (102), a lower base paper (201) is fixedly arranged at the bottom end of the hot melt fiber mesh (203), a plurality of micro through holes (202) are arranged on the lower base paper (201), and the diameter of the micro through holes (202) is 3 mm.

6. The melamine impregnated paper with high color fastness to light according to claim 5, characterized in that: A glue layer (204) is fixedly arranged at the bottom end of the lower base paper (201), and a release paper (205) is adhered to the bottom end of the glue layer (204).

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