Sintered film coated with colored polyimide on two sides

Abstract

The utility model provides a double-sided coated colored polyimide sintered film, which relates to the technical field of polyimide films and comprises a polyimide film main body, a waterproof layer is sprayed on the periphery of the polyimide film main body, colored sintered layers are symmetrically arranged on the periphery of the waterproof layer, adhesive layers are symmetrically sprayed on the peripheries of the colored sintered layers, and the adhesive layers are coated on the periphery of the polyimide film main body. The periphery of the adhesive layer is coated with the protective layer, the waterproof and damp-proof effects of the polyimide film body can be improved through the waterproof layer, the adhesive layer and the protective layer, performance reduction of the polyimide film body caused by damp is prevented, the protective layer can provide double choices of a bright surface and a matte surface for a user, and practicability is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to polyimide film technical field especially relates to a double -faced coating color polyimide sintering film. BACKGROUND

[0002] Polyimide film is one of the earliest polyimide commodities, is used in the slot insulation of motor and cable wrapping material, main product has Dupont Kapton, the Upilex series of Ube Xingchan and Zhong Yuan Apical, transparent polyimide film can be used as soft solar cell bottom version, IKAROS's sail is used polyimide film and fiber to make in the thermal power generation department, polyimide fiber can be used for hot gas filtration, polyimide yarn can separate dust and special chemical substances from waste gas, common polyimide sintering film is sensitive to moisture, is easily damp in actual use process, leads to performance decline, therefore, we propose a double -faced coating color polyimide sintering film. SUMMARY

[0003] The utility model discloses a polyimide film technical field especially relates to a double -faced coating color polyimide sintering film.

[0004] In order to realize the above -mentioned purpose, the utility model discloses a technical scheme as follows:

[0005] A double -faced coating color polyimide sintering film, including polyimide film main part, the periphery of polyimide film main part is sprayed with waterproof layer, the periphery of waterproof layer is provided with color sintering layer symmetrically, the periphery of color sintering layer is sprayed with adhesive layer symmetrically, the periphery of adhesive layer is sprayed with protective layer.

[0006] As the preferred scheme of the utility model, the thickness of polyimide film main part is 0.5mu.

[0007] As the preferred scheme of the utility model, the waterproof layer is polyurea waterproof paint, and the spraying thickness is 0.3mu.

[0008] The technical effect of the further scheme is that the polyurea waterproof coating can resist the influence of ultraviolet radiation, high temperature and extreme weather conditions for a long time, is not easy to age, deteriorate or crack, and has high transparency, thereby effectively preventing the polyimide film body from being damp and improving the use stability.

[0009] As the preferred scheme of the present application, the waterproof layer is constructed by electrostatic spraying process.

[0010] The technical effect of the further scheme is that the coating particles are directionally adsorbed to the surface of the polyimide film body under the action of the electric field by using the electrostatic principle, and the coating layer is uniform and has high processing efficiency.

[0011] As the preferred scheme of the present application, the color sintering layer is formed on the outer surface of the waterproof layer by high-temperature sintering of polyimide resin and polyperfluorohexyl propylene emulsion.

[0012] The technical effect of the further scheme is that the polyimide film body has different or same colors on the front and back surfaces by the color sintering layer on both surfaces, so as to meet different use environments and improve the practicality.

[0013] As the preferred scheme of the present application, the adhesive layer is an environmentally friendly water-based transparent adhesive, and the spraying thickness is 0.3 microns.

[0014] The technical effect of the further scheme is that the environmentally friendly water-based transparent adhesive is an environmentally friendly adhesive with water as a solvent, has the advantages of non-toxicity, odorlessness and non-flammability, is usually composed of water-based resin, thickening agent, humectant and other components, does not contain harmful chemical substances, and is widely used in homes, schools and factories, so that the protective layer can be better fixed by the adhesive layer, and the use stability is improved.

[0015] As the preferred scheme of the present application, the protective layer is made of thermoplastic polyurethane material, and the thickness is 0.5 microns.

[0016] The technical effect of the further scheme is that the thermoplastic polyurethane has the advantages of good wear resistance, oil resistance and water resistance, can provide good protection for the polyimide film body, and improve the service life.

[0017] As the preferred scheme of the present application, the top surface of the protective layer near the top end is a smooth bright surface, and the bottom surface of the protective layer near the bottom is a concave-convex frosted matte surface.

[0018] The technical effect of the further scheme is that the bright surface and the frosted surface of the protective layer can be exchanged according to the actual use, greatly improving the applicability.

[0019] Compared with the prior art, the utility model has the beneficial effects that:

[0020] In the actual use process of the double-sided color polyimide sintering film, the waterproof layer, the adhesive layer and the protective layer can improve the waterproof and moisture-proof effect of the polyimide film main body, prevent the performance of the polyimide film main body from being reduced due to moisture, and the protective layer can also provide the user with the double choices of bright surface and matte surface, effectively improving the practicability. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The utility model provides a whole structure schematic diagram of double-sided color polyimide sintering film;

[0022] Figure 2 The utility model provides a whole structure schematic diagram of double-sided color polyimide sintering film;

[0023] Figure 3 The utility model provides a whole structure schematic diagram of double-sided color polyimide sintering film;

[0024] Figure 4 The utility model provides a whole structure schematic diagram of double-sided color polyimide sintering film.

[0025] Legend explanation: 1, polyimide film main body, 2, waterproof layer, 3, color sintering layer, 4, adhesive layer, 5, protective layer. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the embodiments of the utility model, and 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 the ordinary skill in the art without creative labor belong to the range of the utility model protection.

[0027] In order to facilitate understanding of the utility model, the utility model will be described more fully with reference to related, given several embodiments of the utility model, but, the utility model can be realized in many different forms, and is not limited to the embodiments described in the paper, on the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0028] It is to be understood that where an element such as a layer, region or substrate is described as being "on" another element, it can be directly on the other element or intervening elements can also be present. Where an element such as a layer, region or substrate is described as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0030] Embodiment 1

[0031] As shown in Figures 1-4 The utility model provides a kind of double-sided coating color polyimide sintering film, including polyimide film main body 1, the periphery of polyimide film main body 1 is sprayed with waterproof layer 2, the periphery of waterproof layer 2 is symmetrically provided with color sintering layer 3, the periphery of color sintering layer 3 is symmetrically sprayed with adhesive layer 4, the periphery of adhesive layer 4 is bonded with protective layer 5.

[0032] Embodiment 2

[0033] As shown in Figures 1-4As shown, the thickness of the polyimide film body 1 is 0.5 μm, the waterproof layer 2 is a polyurea waterproof coating, the spraying thickness is 0.3 μm, the polyurea waterproof coating can resist the influence of ultraviolet radiation, high temperature and extreme weather conditions under long-term exposure, is not easy to age, deteriorate or crack, and has high transparency, so it can effectively prevent the polyimide film body 1 from being damp, improve the use stability, the waterproof layer 2 is constructed by an electrostatic spraying process, uses the principle of static electricity to make the coating particles directional adsorption to the surface of the polyimide film body 1 under the action of the electric field, which has the advantages of uniform coating and high processing efficiency, the color sintering layer 3 is sintered on the outer surface of the waterproof layer 2 by polyimide resin and polyperfluorohexyl propylene emulsion, the color sintering layer 3 on both sides can make the polyimide film body 1 have different or same colors on both sides to meet different use environments and improve the practicability, the adhesive layer 4 is an environmentally friendly water-based transparent adhesive with a spraying thickness of 0.3 μm, the environmentally friendly water-based transparent adhesive is an environmentally friendly glue with water as a solvent, which has the advantages of non-toxic, odorless and non-flammable, and is usually composed of water-based resin, thickening agent, humectant and other components, and does not contain harmful chemicals, so it is widely used in homes, schools and factories, and the protective layer 5 is fixed by the adhesive layer 4 to improve the use stability, the protective layer 5 is made of thermoplastic polyurethane with a thickness of 0.5 μm, which has the advantages of good wear resistance, oil resistance and water resistance, and can provide good protection for the polyimide film body 1 to improve the service life, the top surface of the protective layer 5 near the top is smooth and bright, and the bottom surface of the protective layer 5 near the bottom is concave-convex and frosted, the bright surface and the frosted surface of the protective layer 5 can be exchanged according to the actual use, which greatly improves the applicability.

[0034] The working process of the utility model: in the actual use process of double-sided color polyimide sintering film, the waterproof layer 2 can be used to preliminarily waterproof and moisture-proof the polyimide film body 1, the adhesive layer 4 can be used to fix the protective layer 5 and prevent water molecules from entering, and the protective layer 5 can be used to prevent scratching and damage to the polyimide film body 1, and can further improve the waterproof and moisture-proof effect, prevent the performance of the polyimide film body 1 from being reduced due to dampness, and effectively improve the practicability.

[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled 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, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A double-sided coated color polyimide sintered thin film comprising a polyimide film main body (1), characterized in that: The periphery of the polyimide film body (1) is sprayed with a waterproof layer (2), the periphery of the waterproof layer (2) is symmetrically provided with a color sintering layer (3), the periphery of the color sintering layer (3) is symmetrically sprayed with a adhesive layer (4), and the periphery of the adhesive layer (4) is bonded with a protective layer (5).

2. The double-sided coated color polyimide fritted film according to claim 1, wherein: The thickness of the polyimide film body (1) is 0.5 μm.

3. The double-sided coated color polyimide fritted film of claim 1, wherein: The waterproof layer (2) is polyurea waterproof paint, and the spraying thickness is 0.3 μm.

4. The double-sided coated color polyimide fritted film of claim 1, wherein: The waterproof layer (2) is constructed by an electrostatic spraying process.

5. The double-sided coated color polyimide fritted film of claim 1, wherein: The color sintering layer (3) is formed on the outer surface of the waterproof layer (2) by high-temperature sintering of polyimide resin and polyperfluorohexyl propylene emulsion.

6. The double-sided coated color polyimide fritted film of claim 1, wherein: The adhesive layer (4) is an environmentally friendly water-based transparent adhesive, and the spraying thickness is 0.3 μm.

7. The double-sided coated color polyimide fritted film of claim 1, wherein: The protective layer (5) is a thermoplastic polyurethane material, and the thickness is 0.5 μm.

8. The double-sided coated color polyimide fritted film of claim 1, wherein: The top surface of the protective layer (5) near the top end is a smooth bright surface, and the bottom surface of the protective layer (5) near the bottom is a concave-convex frosted matte surface.

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