Anti-UV masking paper composite adhesive tape

Abstract

The utility model discloses an anti-UV (ultraviolet) masking paper composite adhesive tape which is formed by hot-pressing and laminating ultraviolet reflection masking paper and ultraviolet absorption masking paper, the ultraviolet reflection textured paper is composed of a first textured paper base material layer, an ultraviolet reflection layer coated on the front surface of the first textured paper base material layer, a release agent layer coated on the surface of the ultraviolet reflection layer and an organic silicon binder layer coated on the back surface of the first textured paper base material layer, the ultraviolet absorption textured paper comprises a second textured paper base material layer, an ultraviolet absorption layer coated on the front surface of the second textured paper base material layer and a pressure-sensitive adhesive layer coated on the back surface of the second textured paper base material layer, and the organic silicon adhesive layer is used for connecting the ultraviolet reflection textured paper and the ultraviolet absorption textured paper. The adhesive tape can thoroughly block ultraviolet rays and prevent the ultraviolet rays from entering the pressure-sensitive adhesive layer to damage the molecular chain structure of the adhesive, so that the adhesive is remained on an adhered object when the adhesive tape is removed and is difficult to clean.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to an anti-UV masking paper composite tape. Background Art

[0002] Masking tape is a roll of adhesive tape made of masking paper and pressure-sensitive glue as the main raw materials. Pressure-sensitive adhesive is coated on the masking paper and the other side is coated with anti-sticking material. It is widely used in packaging, fixing, repairing and other purposes because of its high temperature resistance, good resistance to chemical solvents, high adhesion, softness and adherence, and no residual adhesive left after tearing.

[0003] Masking tape, which plays a shielding and protective role in decoration (spraying) and other operations, needs to be applied outdoors. Masking tape will inevitably be exposed to ultraviolet radiation under sunlight. Ultraviolet rays will penetrate the masking tape substrate and destroy the molecular chain structure of the adhesive, making the aggregation force between the adhesive molecules worse, resulting in glue residue on the object when the tape is removed, which is difficult to clean.

[0004] Chinese patent CN208762790U discloses an anti-ultraviolet masking paper and a masking tape, in which an anti-ultraviolet coating is added between the styrene-butadiene latex surface layer and the styrene-butadiene latex bottom layer, and the anti-ultraviolet coating is an acrylate type, a structural layer formed by nano-titanium dioxide or benzophenone coating. The anti-ultraviolet principles of acrylate, nano-titanium dioxide and benzophenone in the structural layer of the patent are different. For example, titanium dioxide mainly reflects ultraviolet rays, while benzophenone mainly absorbs ultraviolet rays. After mixing them into a coating, its anti-UV effect is not a coupling superposition of two anti-ultraviolet forms. On the contrary, after the two functional raw materials are mixed into the same functional structural layer, the upper part of the structural layer cannot fully reflect the incident ultraviolet rays (due to interference from the absorption component), and the lower part of the structural layer cannot fully absorb the remaining ultraviolet rays that are transmitted (due to interference from the reflection component), thereby reducing the anti-UV effect of the anti-ultraviolet coating. Utility Model Content

[0005] In order to solve the technical problem of poor anti-UV effect of the existing patent CN208762790U, the utility model provides an anti-UV masking paper composite tape.

[0006] The technical solution adopted by the utility model is:

[0007] A UV-resistant masking paper composite tape is formed by hot-pressing and laminating an ultraviolet-reflecting masking paper and an ultraviolet-absorbing masking paper. The ultraviolet-reflecting masking paper consists of a first masking paper substrate layer, an ultraviolet-reflecting layer coated on the front side of the first masking paper substrate layer, a release agent layer coated on the surface of the ultraviolet-reflecting layer, and an organic silicon adhesive layer coated on the back side of the first masking paper substrate layer. The ultraviolet-absorbing masking paper consists of a second masking paper substrate layer, an ultraviolet-absorbing layer coated on the front side of the second masking paper substrate layer, and a pressure-sensitive adhesive layer coated on the back side of the second masking paper substrate layer. The organic silicon adhesive layer is used for connecting the ultraviolet-reflecting masking paper and the ultraviolet-absorbing masking paper.

[0008] The ultraviolet reflection layer is a structural layer composed of an anti-ultraviolet coating, and its thickness is 20-30 μm. In this embodiment, the anti-ultraviolet coating is an acrylic coating added with nano titanium dioxide.

[0009] Furthermore, the ultraviolet absorption layer is a structural layer composed of ultraviolet absorption coating, and its thickness is 20-30 μm.

[0010] Furthermore, the ultraviolet absorption coating is an acrylate type benzophenone coating.

[0011] Furthermore, the first textured paper substrate layer and the second textured paper substrate layer have a grammage of 40 to 100 g / m 2 .

[0012] Furthermore, the thickness of the silicone adhesive layer and the pressure-sensitive adhesive layer are 20 to 50 μm respectively.

[0013] Furthermore, the thickness of the release agent layer is 1 to 2 μm.

[0014] Beneficial effects of the utility model:

[0015] 1. The UV reflecting layer in the UV reflecting masking paper can reflect UV rays, thereby blocking most of the UV rays; the UV absorbing layer in the UV absorbing masking paper can absorb the remaining UV rays that are not reflected by the UV reflecting layer. Therefore, by separately setting the UV reflecting layer and the UV absorbing layer, the UV rays can be completely blocked to prevent the UV rays from entering the pressure-sensitive adhesive layer and destroying its molecular chain structure, resulting in glue remaining on the adhered object when the tape is removed, making it difficult to clean.

[0016] 2. The UV-reflective masking tape and the UV-absorbing masking tape are made by hot pressing. The process is simple and easy. During production, the masking tape does not need to be repeatedly put into the oven for drying. The stability is higher, the number of drying passes is reduced, and the production efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of an anti-UV masking paper composite tape of the present application. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings and a preferred implementation manner.

[0019] A UV-resistant masking paper composite tape comprises an ultraviolet-reflecting masking paper 10 and an ultraviolet-absorbing masking paper 20 connected by hot pressing.

[0020] The ultraviolet reflecting masking paper 10 is composed of a first masking paper substrate layer 13, an ultraviolet reflecting layer 12 coated on the front side of the first masking paper substrate layer 13, a release agent layer 11 coated on the surface of the ultraviolet reflecting layer, and an organic silicone adhesive layer 14 coated on the back side of the first masking paper substrate layer 13; the ultraviolet absorbing masking paper 20 includes a second masking paper substrate layer 22, an ultraviolet absorbing layer 21 coated on the front side of the second masking paper substrate layer, and a pressure-sensitive adhesive layer 23 coated on the back side of the second masking paper substrate layer, and the organic silicone adhesive layer 14 is connected to the ultraviolet absorbing layer 21.

[0021] The ultraviolet reflection layer is a structural layer composed of acrylic ester nano titanium dioxide anti-ultraviolet coating, and its thickness is 25 μm.

[0022] The ultraviolet absorption layer is a structural layer composed of an acrylic ester type benzophenone ultraviolet absorption coating, and its thickness is 25 μm.

[0023] The first and second masking paper substrate layers both have a grammage of 60 g / m 2 .

[0024] The thickness of the silicone adhesive layer was 50 μm.

[0025] The thickness of the pressure-sensitive adhesive layer is 50 μm.

[0026] The thickness of the release agent layer was 2 μm.

[0027] The preparation method of the anti-UV masking paper composite tape of the present application is:

[0028] 1. First, prepare the UV reflective masking paper 10 and the UV absorbing masking paper 20 respectively;

[0029] Preparation of UV reflective masking paper 10:

[0030] (1.1) applying an acrylate-based ultraviolet reflective coating containing nano-titanium dioxide on the front side of the first textured paper substrate layer 13 by a blade coating method, and forming an ultraviolet reflective layer 12 after drying and curing;

[0031] (1.2) A release agent is applied on the ultraviolet reflective layer 12 by means of a knife coating, and an organic silicone adhesive is applied on the back side of the first masking paper substrate layer 13, and after drying and curing, an ultraviolet reflective masking paper 10 is formed.

[0032] Preparation of UV absorbing masking paper 20:

[0033] The acrylate type ultraviolet absorption coating containing benzophenone is coated on the front side of the second masking paper base layer 22 by blade coating, and the pressure-sensitive adhesive is coated on the back side of the second masking paper base layer 22, and the ultraviolet absorption masking paper 20 is formed after drying and curing.

[0034] 2. Then, the back side of the UV-reflecting masking paper 10 is laminated to the front side of the UV-absorbing masking paper 20, and hot-pressed at a high temperature of 120° C. to 150° C. with a pressure of 0.5 MPa to form the UV-resistant masking paper composite tape of the present application.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention, and these improvements and modifications are also within the protection scope of the present invention.

Claims

1. A UV-resistant masking paper composite tape, characterized in that: The invention is formed by hot-pressing and laminating an ultraviolet reflecting masking paper and an ultraviolet absorbing masking paper. The ultraviolet reflecting masking paper comprises a first masking paper substrate layer, an ultraviolet reflecting layer coated on the front side of the first masking paper substrate layer, a release agent layer coated on the surface of the ultraviolet reflecting layer, and an organic silicon adhesive layer coated on the back side of the first masking paper substrate layer. The ultraviolet absorbing masking paper comprises a second masking paper substrate layer, an ultraviolet absorbing layer coated on the front side of the second masking paper substrate layer, and a pressure-sensitive adhesive layer coated on the back side of the second masking paper substrate layer. The organic silicon adhesive layer is used to connect the ultraviolet reflecting masking paper and the ultraviolet absorbing masking paper.

2. The UV-resistant masking paper composite tape according to claim 1, characterized in that: The ultraviolet reflection layer is a structural layer composed of an anti-ultraviolet coating, and its thickness is 20-30 μm.

3. The UV-resistant masking paper composite tape according to claim 2, characterized in that: The anti-ultraviolet coating is an acrylate type nano titanium dioxide coating.

4. A method according to claim 1, characterized in that: The ultraviolet absorption layer is a structural layer composed of ultraviolet absorption coating, and its thickness is 20-30 μm.

5. The UV-resistant masking paper composite tape according to claim 4, characterized in that: The ultraviolet absorption coating is an acrylate type benzophenone coating.

6. The UV-resistant masking paper composite tape according to claim 1, characterized in that: The first textured paper base layer and the second textured paper base layer have a grammage of 40 to 100 g / m 2 .

7. The UV-resistant masking paper composite tape according to claim 1, characterized in that: The thickness of the organic silicon adhesive layer and the pressure-sensitive adhesive layer are respectively 20 to 50 μm.

8. The UV-resistant masking paper composite tape according to claim 1, characterized in that: The thickness of the release agent layer is 1 to 2 μm.

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