CN217948015U

CN217948015U - Novel adhesive tape

Info

Publication number: CN217948015U
Application number: CN202220907758.3U
Authority: CN
Inventors: 刘林华; 张子铭; 吴希怡; 马梓芮
Original assignee: Guangdong Medical University
Current assignee: Guangdong Medical University
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-12-02
Anticipated expiration: 2032-04-19

Abstract

The utility model relates to the technical field of papermaking, in particular to a novel adhesive tape, which comprises a substrate layer, a reinforcing layer and an adhesive layer which are arranged in sequence; the substrate layer, the reinforcing layer and the adhesive layer are degradable layers; the reinforcing layer is a net structure formed by enclosing cotton threads, and the net structure comprises a plurality of rhombic meshes. The reinforcing layer of the utility model is a net structure formed by a plurality of diamond meshes enclosed by cotton threads, has strong stability and better strength and recoverability; the base material layer, the reinforcing layer and the adhesive layer are degradable layers, so that the adhesive tape can be recycled and does not pollute the environment; the inner layer of the substrate layer close to the reinforced layer is coated with the base layer treating agent which is used for increasing the adhesive strength among the substrate layer, the reinforced layer and the adhesive layer, so that the substrate layer, the reinforced layer and the adhesive layer are prevented from being separated when the adhesive tape is uncovered; the outer layer of the substrate layer, which is far away from the reinforcing layer, is coated with a back layer treating agent, and the back layer treating agent is used for preventing the adhesive tape from being adhered when the adhesive tape is wound into a roll and also can increase the strength of the substrate.

Description

Novel adhesive tape

Technical Field

The utility model relates to an adhesive tape technical field, concretely relates to novel adhesive tape.

Background

The pressure-sensitive adhesive is commonly called as non-setting adhesive, has the advantages of no pollution to an adherend after being stripped, capability of being corrected again when being mistakenly pasted, capability of being repeatedly used for many times, convenience in operation, capability of greatly improving the production efficiency and the product attractiveness, high elasticity, difficulty in breakage, no toxicity, no odor, suitability for food packaging and the like, and is widely applied to the fields of packaging, decoration, office supplies, electric insulation, medical sanitation, label pasting and the like. At present, with the enhancement of environmental awareness, degradable pressure sensitive adhesive tapes are more and more popularized, but the toughness and the pull resistance of the degradable pressure sensitive adhesive tapes on the market are poorer.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides a novel adhesive tape which is degradable, and has stronger toughness and tensile resistance.

The utility model adopts the following technical proposal:

a novel adhesive tape comprises a base material layer, a reinforcing layer and an adhesive layer which are sequentially arranged; the base material layer, the reinforcing layer and the adhesive layer are degradable layers; the reinforcing layer is a net structure formed by enclosing cotton threads, and the net structure comprises a plurality of rhombic meshes.

Further, the inner layer of the substrate layer close to the reinforcing layer is coated with a base layer treating agent layer.

Further, the outer layer of the base material layer, which is far away from the reinforcing layer, is coated with a back layer treating agent layer, and the back layer treating agent layer is a release coating layer.

Furthermore, the substrate layer is made of south Asia PP synthetic paper.

Further, the adhesive layer is one of a quick-drying starch adhesive layer, a novel corn starch adhesive layer, an LCA-2 starch solid adhesive layer, an oxidized starch adhesive layer, a high-strength water-resistant aqueous polyurethane adhesive layer, a polyurethane thermoplastic elastomer layer and a silicate adhesive layer

Furthermore, the diameter of the cotton thread is 0.6-0.8 mm.

Furthermore, the side length of the diamond mesh is 6-10 mm.

Compared with the prior art, the beneficial effects of the utility model are that:

1) The utility model discloses a network structure setting that the enhancement layer encloses into a plurality of rhombus mesh for the cotton thread and constitutes, stability is strong, and intensity and recoverability are better.

2) The utility model discloses a substrate layer, enhancement layer, adhesive layer are the degradable layer, make the sticky tape can carry out recycle, can not the polluted environment.

3) The utility model discloses an inlayer coating that the substrate layer is close to the enhancement layer has the basic unit treating agent, and the basic unit treating agent is used for increasing the adhesion strength between substrate layer and enhancement layer and the adhesive layer for when revealing the sticky tape, substrate layer and enhancement layer and adhesive layer are unlikely to break away from.

4) The utility model discloses an outer coating that the enhancement layer was kept away from to the substrate layer has back layer processing agent, and back layer processing agent is for releasing type coating, and back layer processing agent is used for preventing the sticky tape from gluing when curling the lapping, can also increase the intensity of substrate simultaneously.

Drawings

For a clearer explanation of the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of a novel adhesive tape of the present invention;

FIG. 2 is a schematic structural view of the reinforcing layer of the present invention;

in the figure: 1-a substrate layer, 2-a reinforcing layer and 3-an adhesive layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the present application, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The present invention will be discussed in detail below with reference to fig. 1 to 2 and specific embodiments:

the embodiment of the utility model provides a novel adhesive tape, as shown in fig. 1-2, comprising a substrate layer 1, a reinforcing layer 2 and an adhesive layer 3 which are arranged in sequence; the substrate layer 1 is a framework part of the adhesive tape and is a carrier of the adhesive layer 3; the adhesive layer 3 is a core part of the adhesive tape; the reinforcing layer 2 is used to improve the toughness and the tear resistance of the adhesive tape. Substrate layer 1, enhancement layer 2, adhesive layer 3 are the degradable layer, make the sticky tape recycle, can not the polluted environment. The reinforcing layer 2 is a net structure formed by enclosing cotton threads, and the net structure comprises a plurality of diamond meshes; the reticular cotton threads enable the toughness of the adhesive tape to be greatly enhanced, compared with the design of square meshes, the stability of the rhombic meshes is stronger, and the strength and recoverability of the rhombic meshes are better after stretching, so that the strength and recoverability of the adhesive tape are better.

Further, the inner layer of the substrate layer 1 close to the reinforcing layer 2 is coated with a base layer treating agent layer which is used for increasing the adhesive strength between the substrate layer 1 and the reinforcing layer 2 and between the substrate layer 1 and the reinforcing layer 3 and between the substrate layer and the reinforcing layer 2 and between the substrate layer and the adhesive layer 3, so that the substrate layer 1, the reinforcing layer 2 and the adhesive layer 3 cannot be separated when the adhesive tape is uncovered.

Further, the outer layer of the substrate layer 1, which is far away from the reinforcing layer 2, is coated with a back layer treating agent layer, and the back layer treating agent layer is a release coating layer; the back layer treating agent layer is used for preventing the adhesive tape from being adhered when the adhesive tape is wound into a roll and simultaneously increasing the strength of the base material; specifically, different substances are added into the back layer treating agent layer, and special functions of water resistance, weather resistance, static electricity prevention and the like can be given to the adhesive tape.

Specifically, the base material layer 1 is formed by adding alginate fibers into a blending modified substance of polycaprolactone and poly adipic acid, so that the toughness of the base material layer 1 is greatly enhanced and the base material layer 1 is degradable.

Furthermore, the substrate layer 1 is made of south Asia PP synthetic paper, the main component of the south Asia PP synthetic paper is polypropylene plastic, the south Asia PP synthetic paper can be repeatedly recycled, the environment-friendly requirement is met, and the south Asia PP synthetic paper also has a waterproof function.

Further, the adhesive layer 3 is one of a quick-drying starch adhesive layer, a novel corn starch adhesive layer, an LCA-2 starch solid adhesive layer, an oxidized starch adhesive layer, a high-strength water-resistant waterborne polyurethane adhesive layer, a polyurethane thermoplastic elastomer layer and a silicate adhesive layer, so that the adhesive layer 3 can be degraded.

Furthermore, the diameter of the cotton thread is 0.6-0.8 mm, and the thickness of the cotton thread can be set on the premise of ensuring that the adhesive tape has enough toughness, and the thickness of the whole adhesive tape is not greatly influenced.

Furthermore, the side length of the diamond meshes is 6-10 mm, the set value of the diamond mesh size can be well adapted to the external dimension of the adhesive tape, and a sufficient number of diamond meshes can be arranged in the external frame of the adhesive tape, so that sufficient toughness and tensile resistance are provided.

In the present invention, unless stated to the contrary, directional terms such as "upper, lower, left, right, top, bottom" are used with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular, or gravitational direction; similarly, "inner and outer" refer to the inner and outer relative to the contours of the components themselves for ease of understanding and description, but the above directional terms are not intended to limit the invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

The present invention has been further described with reference to the specific embodiments, but it should be understood that the specific description should not be construed as limiting the spirit and scope of the invention, and various modifications made to the above embodiments by those skilled in the art after reading the present specification are within the scope of the invention.

Claims

1. A novel adhesive tape is characterized in that: including substrate layer, enhancement layer, the adhesive layer that sets gradually, wherein:

the substrate layer, the reinforcing layer and the adhesive layer are degradable layers;

the reinforcing layer is a net structure formed by enclosing cotton threads, and the net structure comprises a plurality of rhombic meshes;

the substrate layer adopts south Asia PP synthetic paper;

the adhesive layer is one of a quick-drying starch adhesive layer, a novel corn starch adhesive layer, an LCA-2 starch solid adhesive layer, an oxidized starch adhesive layer, a high-strength water-resistant waterborne polyurethane adhesive layer, a polyurethane thermoplastic elastomer layer and a silicate adhesive layer.

2. The novel adhesive tape according to claim 1, characterized in that: and the inner layer of the substrate layer close to the reinforcing layer is coated with a base layer treating agent layer.

3. The novel adhesive tape according to claim 1, characterized in that: the outer coating that the enhancement layer was kept away from to the substrate layer has the back layer processing agent layer, back layer processing agent layer is from the type coating layer.

4. The novel adhesive tape according to claim 1, characterized in that: the diameter of the cotton thread is 0.6-0.8 mm.

5. The novel adhesive tape according to claim 1, characterized in that: the side length of the rhombic meshes is 6-10 mm.