PU protective film adhesive tape capable of automatically changing color and preparation method of adhesive tape

A protective film, discoloration technology, applied in the direction of adhesives, film/sheet adhesives, adhesive types, etc., can solve the problem that the protective film tape cannot be discolored, and achieves vision protection, excellent bubble removal effect, Small effect over time

Inactive Publication Date: 2017-11-24
东莞市古川胶带有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a PU protective film tape that can automatically change color and its preparation method, and its main purpose is to provide a PU protective film tape that can automatically change color and Its preparation method can effectively solve the problem that the existing protective film tape cannot automatically change color with light

Method used

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  • PU protective film adhesive tape capable of automatically changing color and preparation method of adhesive tape

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preparation example Construction

[0023] The present invention also discloses a preparation method of the PU protective film tape that can automatically change color, including the following steps:

[0024] (1) Glue preparation: the curing additives are diluted and dispersed with a solvent in a ratio of 1:1, then added to the polyurethane adhesive for stirring, and finally the coloring additives are added to stir and let it stand for 25-35min. Before adding the coloring additives, an antistatic agent is also added for stirring, and the polyurethane adhesive: solvent: curing additive: antistatic agent: coloring additive = (10-30): (0.1-0.5): (0.1-0.5): (0.5- 1): (1-5). The solvent is ETAC or butanone.

[0025] (2) Coating operation: The direct coating method is used to coat the surface of the transparent base film. The initial drying and curing treatment is carried out in an oven at 95℃-105℃ to form a color-changing polyurethane adhesive layer. The surface of the polyurethane adhesive layer is covered with a singl...

Embodiment 1

[0028] A specific structure of a PU protective film tape capable of changing colors automatically includes a transparent base film 10, a color changeable polyurethane adhesive layer 20, and a single-sided release film 30.

[0029] The color changeable polyurethane glue layer 20 is coated on the surface of the transparent base film 10, and the single-sided release film 30 is laminated on the surface of the color changeable polyurethane glue layer 20. Moreover, the transparent base film 10 is made of PET. The color changeable polyurethane adhesive layer 20 includes the following components by weight percentage: 80% polyurethane adhesive, 8% curing additive, and 12% coloring additive. The thickness of the color changeable polyurethane adhesive layer 20 is 10 μm. The single-sided release film 30 is made of PET.

[0030] The present invention also discloses a preparation method of the PU protective film tape that can automatically change color, including the following steps:

[0031] (1...

Embodiment 2

[0034] A specific structure of a PU protective film tape capable of changing colors automatically includes a transparent base film 10, a color changeable polyurethane adhesive layer 20, and a single-sided release film 30.

[0035] The color changeable polyurethane glue layer 20 is coated on the surface of the transparent base film 10, and the single-sided release film 30 is laminated on the surface of the color changeable polyurethane glue layer 20. Moreover, the transparent base film 10 is made of PET. The color-changing polyurethane adhesive layer 20 includes the following components by weight percentage: 93% polyurethane adhesive, 2% curing additives and 5% coloring additives, and the thickness of the color-changing polyurethane adhesive layer 20 is 5 μm. The single-sided release film 30 is made of PET.

[0036] The present invention also discloses a preparation method of the PU protective film tape that can automatically change color, including the following steps:

[0037] (1)...

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Abstract

The invention discloses a PU protective film adhesive tape capable of automatically changing color and a preparation method of the adhesive tape. The PU protective film adhesive tape comprises a transparent base film, a color-changeable polyurethane adhesive layer and a one-sided release film, wherein the color-changeable polyurethane adhesive layer is coated on the surface of the transparent base film; the one-sided release film is laminated on the surface of the color-changeable polyurethane adhesive layer; the color-changeable polyurethane adhesive layer contains the following components in percentage by weight: 80-93% of a polyurethane adhesive, 2-8% of a curing additive and 3-12% of a coloring additive. The color-changeable polyurethane adhesive layer is prepared by proportioning specific components, so that the adhesive tape absorbs ultraviolet light or sunshine to produce color change while being subjected to ultraviolet light or sunshine irradiation; and moreover, when ultraviolet light or sunshine irradiation is lost, the adhesive tape returns to the original color, the product capable of automatically changing the color effectively prevents sight stimulation of the sunshine on a user, and the comfortableness and visual effect of the sight of the user are effectively ensured. The product is suitable for surface protection of glass lenses of electronic products, panels, touch screen module and other parts.

Description

Technical field [0001] The invention relates to the technical field of adhesive tapes, in particular to a PU protective film adhesive tape that can automatically change color and a preparation method thereof. Background technique [0002] In order to protect the glass lens, panel, touch screen module and other components of electronic products, a protective film tape is usually attached to the outer surface of these components. In the prior art, when sunlight or ultraviolet rays hit the surface of the protective film product, it is strong The sunlight produces a strong stimulus to the user's sight, which greatly affects the comfort of the user's sight and the visual effect. Therefore, it is necessary to improve the performance of traditional tapes. Summary of the invention [0003] In view of this, the main purpose of the present invention is to provide a PU protective film tape that can automatically change color and a preparation method thereof, and its main purpose is to provi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C09J175/04
CPCC09J175/04C09J2203/318C09J2301/122C09J2301/312C09J2301/408C09J2467/005C09J2467/006C09J2475/00
Inventor 王建义徐宏飞王博文黄世锋付江勇杨春吉周雄安吴荣斌罗通化罗焕
Owner 东莞市古川胶带有限公司
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