CN114231206A

CN114231206A - Adhesive tape and method for producing same

Info

Publication number: CN114231206A
Application number: CN202111532391.8A
Authority: CN
Inventors: 朱惠斌; 张亭; 张家振; 麦启波
Original assignee: Jiangsu Huangguan New Material Technology Co ltd
Current assignee: Jiangsu Huangguan New Material Technology Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-03-25

Abstract

The application provides an adhesive tape and a manufacturing method thereof. The adhesive tape comprises: the adhesive layer is positioned between the substrate layer and the stripping layer; and the side of the stripping layer and/or the substrate layer, which is far away from the glue layer, is provided with a concave-convex structure. Through with the peel off layer with \ or the substrate layer is kept away from one side of glue film and is set up to concave-convex structure, increases the roughness of the surface of sticky tape in order to reduce area of contact to reduce the sticky tape cross cutting between the sheet or the vacuum adsorption's that appears between the sticky tape possibility, and then be favorable to avoiding the sheet adhesion problem that causes by vacuum adsorption, make cross cutting efficiency and yield improve, reduce the processing cost.

Description

Adhesive tape and method for producing same

Technical Field

The application relates to the technical field of adhesive tapes, in particular to an adhesive tape and a manufacturing method thereof.

Background

Because the traditional sticky tape on the market has comparatively smooth surface at present, lead to piling up the sheet with traditional sticky tape mould cutting into in the grinding apparatus storage, vacuum adsorption can appear between sheet and the sheet, lead to sheet and sheet adhesion to be in the same place, cause the manipulator can't snatch the sheet and then lead to unable back end operation of carrying on, make cross cutting efficiency and yield reduce, increased the processing cost.

Disclosure of Invention

In view of this, the present application provides an adhesive tape and a manufacturing method thereof, so as to solve the technical problem of sheet adhesion caused by vacuum adsorption in the prior art, improve the die cutting efficiency and yield, and reduce the processing cost.

According to one aspect of the present application, there is provided an adhesive tape comprising: a substrate layer; a peeling layer; the adhesive layer is positioned between the base material layer and the stripping layer; and the side of the stripping layer and/or the substrate layer, which is far away from the glue layer, is provided with a concave-convex structure.

In a possible implementation manner, the concave-convex structure is arranged in a grid shape and/or a stripe shape and/or a texture shape.

In a possible implementation mode, the stripping layer and/or the base material layer comprises a release layer or an antistatic release layer which is attached to the concave-convex surface of the concave-convex structure.

In a possible implementation manner, the stripping layer and/or the substrate layer comprises a release layer attached to the concave-convex surface of the concave-convex structure, and an antistatic layer attached to the release layer.

In a possible implementation manner, one side of the peeling layer away from the adhesive layer is provided with the concave-convex structure; the peeling layer comprises a base layer and a film coating layer which are attached to each other, and the film coating layer forms the concave-convex structure.

In one possible implementation, the release layer includes a release layer or an antistatic release layer; the opposite two sides of the release layer or the antistatic release layer are respectively attached to the base layer and the adhesive layer.

In one possible implementation, the peeling layer is provided in plurality, and the plurality of peeling layers includes a first peeling layer and a second peeling layer; the number of the glue layers is multiple, and the plurality of glue layers comprise a first glue layer and a second glue layer; the first adhesive layer is positioned between the substrate layer and the first stripping layer, and the second adhesive layer is positioned between the substrate layer and the second stripping layer; wherein, the concave-convex structure is arranged on one side of the first stripping layer far away from the first adhesive layer and one side of the second stripping layer far away from the second adhesive layer.

In one possible implementation manner, the substrate layer is provided as a polyethylene terephthalate layer, and the thickness of the substrate layer is set to be 50 μm; the thickness of the first peeling layer and the second peeling layer were each set to 50 μm; the thickness of the first adhesive layer and the second adhesive layer is set to be 10 micrometers.

In one possible implementation, the adhesive layer is provided as an antistatic adhesive layer or a UV viscosity-reducing adhesive layer or an antistatic UV viscosity-reducing adhesive layer.

According to another aspect of the present application, there is provided a method of manufacturing an adhesive tape, the method including: providing a substrate layer; providing a first adhesive; coating a first adhesive on the substrate layer and drying to form an adhesive layer; providing a release layer; the base material layer is attached to the stripping layer through the adhesive layer; and the side of the stripping layer and/or the substrate layer, which is far away from the glue layer, is provided with a concave-convex structure.

In a possible implementation manner, one side of the peeling layer away from the adhesive layer is provided with the concave-convex structure; wherein the providing a release layer comprises: coating a release agent on the concave-convex structure and drying to obtain a release layer; and coating an antistatic agent on the release layer and drying to obtain the antistatic layer.

In one possible implementation, the providing the first adhesive includes: sequentially mixing 100 parts of acrylic acid adhesive, 20-40 parts of solvent, 3-5 parts of tackifying resin, 5-10 parts of UV resin, 0.5-0.8 part of antistatic agent, 0.5-0.8 part of photoinitiator, 0.5-1 part of cohesion accelerator, 0.5-1 part of cross-linking agent and 0.05-0.2 part of antioxidant according to parts by weight to obtain a mixture; placing the mixture in a stirrer to be stirred under the condition of a yellow light or no light, wherein the stirring speed is set to be 200 and 400r/min, and the stirring time is 30-60 min; and obtaining the first adhesive after stirring.

According to another aspect of the present application, there is provided another method of manufacturing an adhesive tape, the method comprising: providing a substrate layer, wherein the substrate layer comprises a first adhesive surface and a second adhesive surface which are used for coating a first adhesive; coating a first adhesive on the first adhesive surface and drying to form a first adhesive layer; providing a first release layer; attaching the first adhesive surface to the first peeling layer through the first adhesive layer; coating the first adhesive on the second adhesive surface and drying to form a second adhesive layer; providing a second release layer; the second adhesive surface is attached to the second stripping layer through the second adhesive layer; and one side of the first stripping layer, which is far away from the first adhesive layer, and one side of the second stripping layer, which is far away from the second adhesive layer, are both provided with a concave-convex structure.

According to the adhesive tape and the manufacturing method thereof, the stripping layer and/or one side, far away from the adhesive layer, of the base material layer are arranged to be of the concave-convex structure, so that the surface roughness of the adhesive tape is increased to reduce the contact area, the possibility of vacuum adsorption between the die-cutting sheets of the adhesive tape or between the adhesive tapes is reduced, the problem of sheet adhesion caused by vacuum adsorption is further favorably avoided, the die-cutting efficiency and the yield are improved, and the processing cost is reduced.

Drawings

Fig. 1 is a schematic cross-sectional structure view of an adhesive tape provided in one possible implementation manner of the present application, wherein the adhesive tape is a single-sided adhesive;

fig. 2 is a schematic cross-sectional view of an adhesive tape according to yet another possible implementation manner of the present application, wherein the adhesive tape is a single-sided adhesive;

fig. 3 is a schematic cross-sectional view illustrating an adhesive tape according to yet another possible implementation manner of the present application, wherein the adhesive tape is a single-sided adhesive;

FIG. 4 is a schematic cross-sectional view of one possible implementation of the release layer of FIG. 1;

FIG. 5 is a schematic cross-sectional view of yet another possible implementation of the release layer of FIG. 1;

FIG. 6 is a schematic cross-sectional view of yet another possible implementation of the release layer of FIG. 1;

fig. 7 is a schematic cross-sectional view illustrating an adhesive tape according to yet another possible implementation manner of the present application, wherein the adhesive tape is a double-sided adhesive tape;

FIG. 8 is a schematic flow chart of a method for manufacturing an adhesive tape according to one possible implementation of the present disclosure;

FIG. 9 is a schematic flow chart of one possible implementation of the process S4 in FIG. 8;

FIG. 10 is a schematic flow chart of one possible implementation of the process S2 in FIG. 8;

fig. 11 is a schematic flow chart of a method for manufacturing an adhesive tape according to another possible implementation manner of the present application.

Detailed Description

In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise. All directional indicators in the embodiments of the present application (such as upper, lower, left, right, front, rear, top, bottom … …) are only used to explain the relative positional relationship between the components, the movement, etc. in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Furthermore, reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Because traditional sticky tape on the market has comparatively smooth surface at present, lead to piling up the sheet with traditional sticky tape mould cutting into in the cross cutting course of working and storing in the grinding apparatus, vacuum adsorption can appear between sheet and the sheet, lead to sheet and sheet adhesion to be in the same place, cause the manipulator can't snatch the sheet and then lead to can't carry out the back end operation.

According to an aspect of the present application, the present application provides an adhesive tape 100 for the above-mentioned problem of sheet adhesion caused by vacuum adsorption, which reduces the possibility of forming vacuum between sheets when the sheets are stacked by increasing the surface roughness of the adhesive tape 100 to reduce the contact area when the sheets are stacked, so that the die cutting efficiency and yield are improved, and the processing cost is reduced.

Fig. 1, fig. 2 and fig. 3 are schematic cross-sectional structural diagrams of an adhesive tape 100 provided in a possible implementation manner of the present application, where the adhesive tape 100 includes a substrate layer 1, a peeling layer 3, and an adhesive layer 2 located between the substrate layer 1 and the peeling layer 3. Wherein, the stripping layer 3 and/or the substrate layer 1 is set to be the concave-convex structure A away from the side of the glue layer 2, so as to reduce the vacuum adsorption phenomenon generated between the adjacent adhesive tapes 100 when the adhesive tapes 100 are stacked.

Wherein, the stripping layer 3 and/or the side of the substrate layer 1 far away from the glue layer 2 are both the sides contacting with the outside.

Fig. 1 shows that the side of the peeling layer 3 away from the glue layer 2 is provided with the concavo-convex structure a, and the side of the substrate layer 1 away from the glue layer 2 is not provided with the concavo-convex structure a.

Fig. 2 shows that the side of the substrate layer 1 away from the glue layer 2 is provided with the concave-convex structure a, and the side of the peeling layer 3 away from the glue layer 2 is not provided with the concave-convex structure a.

Fig. 3 shows that the substrate layer 1 and the peeling layer 3 are both arranged in a concave-convex structure a on the side far away from the glue layer 2.

In this implementation, one side of contacting the substrate layer 1 and/or the peeling layer 3 with the outside is set as the concave-convex structure a, so as to increase the surface roughness of the adhesive tape 100, reduce the possibility of vacuum adsorption between the adhesive tape 100 and the adhesive tape 100 when a plurality of adhesive tapes 100 are stacked, and solve the problem of sheet adhesion.

Optionally, the concave-convex structure a is arranged in a grid shape and/or a stripe shape and/or a texture shape, and the specific shape and size of the concave-convex structure a are not limited in this implementation manner, so as to increase the surface roughness of the adhesive tape 100 and reduce the possibility of occurrence of vacuum adsorption.

In one possible implementation, the peeling layer 3 is a release film.

Alternatively, as shown in fig. 4, the side of the peeling layer 3 away from the adhesive layer 2 is provided with a concave-convex structure a, and the peeling layer 3 comprises a covering layer attached to the concave-convex surface of the concave-convex structure a.

Specifically, the cover layer is a release layer 32. That is, the release layer 32 is formed by coating a release agent having lubricity on the uneven surface of the uneven structure a to impart the smooth property to the uneven surface, and further, when the adhesive tape 100 is cut and stacked, the sheets are relatively easily slid to each other, and the adhesion of the sheets is not easily caused.

Specifically, the release layer 32 is a polyorganosiloxane layer. The release agent can be solvent type silicone oil or solvent-free type silicone oil.

Alternatively, as shown in fig. 1, 2, 3, and 4, the peeling layer 3 includes a base film 31 forming the above-described concavo-convex structure a and a release layer 32 provided between the base film 31 and the glue layer 2.

Specifically, the peeling layer 3 is formed by coating a release agent on one side of the base film 31 to which the adhesive layer 2 is adhered to form a release layer 32 to obtain a light and stable release force, thereby reducing the peeling strength between the peeling layer 3 and the adhesive layer 2.

It is easily understood that in other possible implementations, the peeling layer 3 may also be a common film that does not include the release layer 32.

During the specific implementation, static electricity is possibly generated in the die cutting process, so that the sheets are adsorbed by the static electricity, and the sheets are adhered. Therefore, in order to further solve the problem of sheet adhesion caused by electrostatic adsorption, another possible implementation of the present application provides an adhesive tape 100, and fig. 4 shows a schematic cross-sectional structure of the release layer 3 of the adhesive tape 100.

Specifically, one side of the peeling layer 3, which is far away from the glue layer 2, is provided with a concave-convex structure a, and the peeling layer 3 comprises a covering layer attached to the concave-convex surface of the concave-convex structure a. Wherein the covering layer is an antistatic layer 33.

The antistatic layer 33 is provided so that the tape 100 is not easily subjected to static electricity during the die cutting process.

Specifically, the antistatic layer 33 is formed by coating an antistatic agent on the uneven surface of the uneven structure a.

Optionally, the antistatic agent is polythiophene conductive liquid, and the polythiophene conductive liquid is diluted with deionized water or isopropanol as a diluent, then coated on the concave-convex surface, and dried by an oven to obtain the antistatic layer 33.

Optionally, the overburden is antistatic release layer 34 so that concave-convex surface of concave-convex structure A has smooth characteristic and antistatic function simultaneously, and then can more effectively solve the technical problem that the sheet is sticky.

Specifically, the antistatic release layer 34 is formed by coating an antistatic release agent on the concavo-convex surface of the concavo-convex structure a.

Optionally, the antistatic release agent is an antistatic silicone release agent.

As can be easily understood, referring to fig. 4, the peeling layer 3 can be formed by coating the above-mentioned antistatic release agent on the side of the base film 31 to be adhered to the adhesive layer 2 to form the antistatic release layer 34, so that not only a light and stable release force can be obtained, but also the tape 100 is not prone to generate static electricity during the die cutting process.

Fig. 5 shows a schematic cross-sectional structure of a peeling layer 3 provided in yet another possible implementation manner of the present application, one side of the peeling layer 3 away from the adhesive layer 2 is provided with a concave-convex structure a, the peeling layer 3 includes a release layer 32 attached to a concave-convex surface of the concave-convex structure a, and an antistatic layer 33 attached to the release layer 32.

Alternatively, the antistatic layer 33 is configured to be prepared by coating a polythiophene conductive solution of 0.2 to 0.8 μm on the release layer 32, and drying it.

It is easily understood that, referring to a composite structure in which the uneven structure a of the peeling layer 3 is laminated with any one of the release layer 32, the antistatic layer 33, and the antistatic release layer 34 in fig. 4, and referring to a composite structure in which the uneven structure a of the peeling layer 3 is laminated with the release layer 32 and the antistatic layer 33 in sequence in fig. 5, in other possible implementations, the uneven structure a of the base material layer 1 in fig. 2 and 3 may also be laminated with any one of the release layer 32, the antistatic layer 33, and the antistatic release layer 34, or the release layer 32 and the antistatic layer 33 in sequence.

Fig. 6 shows a schematic cross-sectional structure of a peeling layer 3 provided in yet another possible implementation manner of the present application, wherein a side of the peeling layer 3 away from the glue layer 2 is provided with a concave-convex structure a; the base film 31 of the peeling layer 3 includes a base layer 311 and a lamination layer 312, which are attached to each other, and the lamination layer 312 forms a concave-convex structure a. In order to improve the adhesion effect between the base layer 311 and the laminated film layer 312, a glue layer 313 may be disposed between the base layer 311 and the laminated film layer 312.

Alternatively, the base layer 311 may be a BOPP layer or a PP layer or a PE layer or a PET (polyethylene terephthalate) layer.

Optionally, the PE layer 312 is a polyethylene layer, specifically a mixture of high density polyethylene and low density polyethylene. The tie layer 312 may also be a polypropylene layer.

Specifically, the peeling layer 3 further includes an antistatic release layer 34, and opposite sides of the antistatic release layer 34 are respectively attached to the base layer 311 and the adhesive layer 2.

Alternatively, the antistatic release layer 34 is configured to be made by coating an antistatic silicone release agent of 0.5 to 0.8 μm on the second side of the base layer 311 and drying it.

Alternatively, the antistatic silicone release agent includes an alkenyl polysiloxane, a hydrogen polysiloxane, a conductive polymer resin, a binder compound, a platinum catalyst, and an ionic surfactant.

Fig. 7 shows a schematic cross-sectional structure of an adhesive tape 100 provided in another possible implementation manner of the present application, where the adhesive tape 100 is a double-sided adhesive tape.

Specifically, the peeling layer 3 is provided in plural, and the plural peeling layers 3 include a first peeling layer 3a and a second peeling layer 3 b; the plurality of adhesive layers 2 are arranged, and the plurality of adhesive layers 2 comprise a first adhesive layer 2a and a second adhesive layer 2 b; the first adhesive layer 2a is positioned between the substrate layer 1 and the first stripping layer 3a, and the second adhesive layer 2b is positioned between the substrate layer 1 and the second stripping layer 3 b; wherein, the side of the first peeling layer 3a far away from the first adhesive layer 2a and the side of the second peeling layer 3b far away from the second adhesive layer 2b are both provided with a concave-convex structure A.

In one possible implementation, the substrate layer 1 is provided as a PET layer, and the thickness of the substrate layer 1 is set to 50 μm; the thickness of each of the first peeling layer 3a and the second peeling layer 3b was set to 50 μm; the thickness of the first glue layer 2a and the second glue layer 2b are each set to 10 μm.

In one possible realization, the glue layer 2 is provided as an antistatic glue layer or a UV-vis-breaking glue layer or an antistatic UV-vis-breaking glue layer.

Specifically, the glue layer 2 is an antistatic UV visbreaker layer.

Specifically, the glue layer 2 is prepared from the following raw materials in parts by weight: 100 parts of acrylic acid adhesive, 5-10 parts of UV resin, 3-5 parts of tackifying resin, 1-2 parts of photoinitiator, 0.5-0.8 part of antistatic agent, 0.5-1 part of cohesion accelerator, 0.5-1 part of crosslinking agent, 0.05-0.2 part of antioxidant and 20-40 parts of solvent.

Wherein, the use of cohesion promoter is in order to improve the cohesion of glue film 2, reduces the mobility of glue film 2 for glue film 2 becomes "hard", so can avoid as far as possible to have gluing agent to spill over from glue film 2 in the knife edge department after the cross cutting, and then is favorable to reducing the sheet adhesion problem of bringing by the excessive glue of cross cutting, simultaneously, still is favorable to protecting the cross cutting cutter not contaminated by gluing agent, prolongs the life of cutter.

The antistatic agent is used for enabling the adhesive layer 2 to have an antistatic function, so that the peeling voltage of the peeling layer 3 which needs to be peeled from the adhesive layer 2 when the adhesive tape 100 is used is reduced, static electricity generated during die cutting is avoided, and the problem of sheet adhesion caused by electrostatic adsorption is reduced.

The photoinitiator is used to provide the adhesive layer 2 with a UV viscosity reducing function.

To more clearly describe the structure of the adhesive tape 100 provided in the present application and the advantageous effects thereof, the following further describes a method for manufacturing the adhesive tape 100.

In accordance with another aspect of the present application, a method of manufacturing an adhesive tape 100 is provided.

Fig. 8 shows a schematic flow chart of a method for manufacturing the adhesive tape 100 according to one possible implementation manner of the present application.

As shown in fig. 1, 2 and 3, the manufacturing method includes the following steps:

step S1: a substrate layer 1 is provided.

In specific implementation, the base material layer 1 is a 50 μm transparent PET base material.

Step S2: and providing a first adhesive.

Step S3: coating a first adhesive on the substrate layer 1 and drying to form an adhesive layer 2;

in specific implementation, one surface of the substrate layer 1 is processed by a corona machine to form a corona surface (corona power of the corona machine is 1.2-1.6kw), a coating machine is used for coating a first adhesive with the thickness of 15 microns and uniformly stirring on the corona surface, and the corona surface is dried by a multi-section oven. The temperature of each section of oven is set to 50 ℃/70 ℃/90 ℃/100 ℃/110 ℃/130 ℃/110 ℃/80 ℃ in sequence, and the speed of the coating machine is 15-25 m/min.

Step S4: a release layer 3 is provided.

Step S5: the base material layer 1 and the peeling layer 3 are bonded through the adhesive layer 2.

In specific implementation, the adhesive layer 2 dried by the oven is attached to the stripping layer 3 and rolled to obtain the single-sided adhesive tape.

The side of the stripping layer 3 and/or the substrate layer 1 far away from the glue layer 2 is provided with a concave-convex structure A so as to weaken the vacuum adsorption effect generated when a plurality of adhesive tapes 100 are stacked or when the adhesive tapes 100 are die-cut into stacked sheets, between adjacent adhesive tapes 100 or between sheets.

In a possible implementation manner, as shown in fig. 9 and 5, the side of the peeling layer 3 away from the glue layer 2 is provided with the concave-convex structure a; step S4 (providing the release layer 3) includes the following steps:

step S41: a release agent is coated on the concavo-convex structure a and dried to obtain a release layer 32.

In specific implementation, the release agent is polyorganosiloxane, and the thickness of the release layer 32 is 0.001-0.003 mm.

Step S42: an antistatic agent is coated on the release layer 32 and a drying process is performed to obtain an antistatic layer 33.

In specific implementation, the antistatic agent is polythiophene conductive liquid, the polythiophene conductive liquid is diluted by deionized water or isopropanol serving as a diluent, the diluted polythiophene conductive liquid is coated on the release layer 32, and the thickness of the antistatic layer 33 is 0.2-0.8 μm.

In one possible implementation manner, as shown in fig. 10, the step S2 (providing the first adhesive) includes the following steps:

step S21: according to parts by weight, 100 parts of acrylic acid adhesive, 20-40 parts of solvent, 3-5 parts of tackifying resin, 5-10 parts of UV resin, 0.5-0.8 part of antistatic agent, 0.5-0.8 part of photoinitiator, 0.5-1 part of cohesion accelerator, 0.5-1 part of cross-linking agent and 0.05-0.2 part of antioxidant are sequentially mixed to obtain a mixture.

The antistatic agent and the photoinitiator in the step S21 are used, so that the first adhesive has the antistatic function and the UV viscosity reduction function, meanwhile, the adhesive layer 2 becomes hard due to the cohesion accelerator, the fluidity of the adhesive layer 2 is reduced, and the problems of sheet adhesion caused by die cutting overflowing and cutter service life shortening caused by the pollution of the adhesive to the die cutting cutter and the like are avoided.

In specific implementation, the main component of the acrylic adhesive is an acrylate copolymer, and the solvent is one or more of ethyl acetate, n-butyl acetate, toluene, dichloroethylene and methyl isobutyl ketone. The UV resin is one or more of epoxy modified acrylate resin, polyurethane modified acrylate resin, polyester acrylate resin and elastic modified acrylic resin. The tackifying resin is one of terpene phenolic resin, maleated rosin and hydrogenated rosin. The photoinitiator is one of Pasteur IRGACURE 651 and IRGACURE 184. The antistatic agent is one of bis (trifluoromethanesulfonimide) lithium, carbon nanotubes and polyether ester amide. The cohesion accelerator is one of butyl acetate cellulose and carboxymethyl cellulose acetate butyrate. The cross-linking agent is one of polyisocyanate, epoxy resin, polyepoxy compound and alkoxy metal compound. The oxidant is one of pentaerythritol tetrakis (beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate), dilauryl thiodipropionate and distearyl thiodipropionate.

Step S22: the mixture was stirred in a stirrer under yellow light or without light.

In specific implementation, the stirring speed is set to be 200-400r/min, and the stirring time is set to be 30-60 min.

Step S23: and obtaining the first adhesive after stirring.

Fig. 11 is a schematic flow chart illustrating a manufacturing method of an adhesive tape 100 according to one possible implementation manner of the present application, and with reference to fig. 7, the manufacturing method includes the following steps:

step B1: providing a substrate layer 1, wherein the substrate layer 1 comprises a first rubber surface and a second rubber surface which are used for coating a first adhesive.

Step B2: and coating a first adhesive on the first adhesive surface and drying to form a first adhesive layer 2 a.

In specific implementation, a corona surface is formed after the first adhesive surface of the substrate layer 1 passes through a corona machine (the corona power of the corona machine is 1.2-1.6kw), a coating machine is used for coating first adhesive with the thickness of 15 microns and uniformly stirring on the corona surface, and the first adhesive is dried through a multi-section drying oven. The temperature of each section of oven is set to 50 ℃/70 ℃/90 ℃/100 ℃/110 ℃/130 ℃/110 ℃/80 ℃ in sequence, and the speed of the coating machine is 15-25 m/min.

Step B3: a first release layer 3a is provided.

Step B4: the first adhesive surface is attached to the first peeling layer 3a via the first adhesive layer 2 a.

In specific implementation, the first adhesive layer 2a dried by the oven is attached to the first peeling layer 3 a.

Step B5: and coating the first adhesive on the second adhesive surface and drying to form a second adhesive layer 2 b.

In specific implementation, the second adhesive surface of the substrate layer 1 is coated with a corona machine to form a corona surface (corona power of the corona machine is 1.2-1.6kw), a coating machine is used for coating a first adhesive with a thickness of 15 μm and uniformly stirring on the corona surface, and the corona surface is dried by a multi-section oven. The temperature of each section of oven is set to 50 ℃/70 ℃/90 ℃/100 ℃/110 ℃/130 ℃/110 ℃/80 ℃ in sequence, and the speed of the coating machine is 15-25 m/min.

Step B6: a second release layer 3b is provided.

Step B7: the second adhesive surface is attached to the second peeling layer 3b via the second adhesive layer 2 b.

In specific implementation, the second adhesive layer 2b dried by the oven is attached to the second peeling layer 3b to obtain a semi-finished product of the adhesive tape 100.

Step B8: the semi-finished product of the adhesive tape 100 is put into a greenhouse for curing.

In specific implementation, the semi-finished product of the adhesive tape 100 is put in a greenhouse for curing for 48-72h to obtain the finished product of the adhesive tape 100, and the curing condition of the greenhouse is 50 ℃ and 40-50% of humidity.

The side of the first release layer 3a away from the first adhesive layer 2a and the side of the second release layer 3b away from the second adhesive layer 2b are both configured to have a concave-convex structure a, so as to reduce the vacuum absorption effect generated when a plurality of adhesive tapes 100 are stacked or when the adhesive tapes 100 are die-cut into stacks of sheets, between adjacent adhesive tapes 100, or between sheets.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modifications, equivalents and the like that are within the spirit and principle of the present application should be included in the scope of the present application.

Claims

1. An adhesive tape, comprising:

a substrate layer;

a peeling layer; and

the adhesive layer is positioned between the base material layer and the stripping layer;

and the side of the stripping layer and/or the substrate layer, which is far away from the glue layer, is provided with a concave-convex structure.

2. The adhesive tape according to claim 1, wherein:

the concave-convex structure is arranged in a grid shape and/or a stripe shape and/or a texture shape.

3. The adhesive tape according to claim 1, wherein:

the peeling layer and/or the substrate layer comprises a release layer or an antistatic release layer which is attached to the concave-convex surface of the concave-convex structure.

4. The adhesive tape according to claim 1, wherein:

the peel ply with/or the substrate layer include with concave convex surface of concave-convex structure is laminated mutually from the type layer, and with from the antistatic layer that the type layer was laminated mutually.

5. The adhesive tape according to claim 1, wherein: one side of the peeling layer, which is far away from the adhesive layer, is provided with the concave-convex structure;

the peeling layer comprises a base layer and a film coating layer which are attached to each other, and the film coating layer forms the concave-convex structure.

6. The adhesive tape according to claim 5, wherein: the peeling layer comprises a release layer or an antistatic release layer; the opposite two sides of the release layer or the antistatic release layer are respectively attached to the base layer and the adhesive layer.

7. The adhesive tape according to claim 1, wherein:

the peeling layers are provided in plurality, and the plurality of peeling layers include a first peeling layer and a second peeling layer; the number of the glue layers is multiple, and the plurality of glue layers comprise a first glue layer and a second glue layer;

the first adhesive layer is positioned between the substrate layer and the first stripping layer, and the second adhesive layer is positioned between the substrate layer and the second stripping layer;

wherein, the concave-convex structure is arranged on one side of the first stripping layer far away from the first adhesive layer and one side of the second stripping layer far away from the second adhesive layer.

8. The adhesive tape according to claim 7, wherein:

the substrate layer is arranged to be a polyethylene terephthalate layer, and the thickness of the substrate layer is set to be 50 micrometers;

the thickness of the first peeling layer and the second peeling layer were each set to 50 μm;

the thickness of the first adhesive layer and the second adhesive layer is set to be 10 micrometers.

9. The adhesive tape according to claim 1, wherein:

the adhesive layer is an antistatic adhesive layer or a UV viscosity-reducing adhesive layer or an antistatic UV viscosity-reducing adhesive layer.

10. A method for manufacturing an adhesive tape, comprising:

providing a substrate layer;

providing a first adhesive;

coating a first adhesive on the substrate layer and drying to form an adhesive layer;

providing a release layer; and

the base material layer is attached to the stripping layer through the adhesive layer;

11. The manufacturing method according to claim 10, wherein a side of the peeling layer away from the adhesive layer is provided as the concavo-convex structure;

wherein the providing a release layer comprises:

coating a release agent on the concave-convex structure and drying to obtain a release layer; and

and coating an antistatic agent on the release layer and drying to obtain the antistatic layer.

12. The manufacturing method according to claim 10,

the providing a first adhesive comprises:

sequentially mixing 100 parts of acrylic acid adhesive, 20-40 parts of solvent, 3-5 parts of tackifying resin, 5-10 parts of UV resin, 0.5-0.8 part of antistatic agent, 0.5-0.8 part of photoinitiator, 0.5-1 part of cohesion accelerator, 0.5-1 part of cross-linking agent and 0.05-0.2 part of antioxidant according to parts by weight to obtain a mixture;

placing the mixture in a stirrer to be stirred under the condition of a yellow light or no light, wherein the stirring speed is set to be 200 and 400r/min, and the stirring time is 30-60 min; and

and obtaining the first adhesive after stirring.

13. A method for manufacturing an adhesive tape, comprising:

providing a substrate layer, wherein the substrate layer comprises a first adhesive surface and a second adhesive surface which are used for coating a first adhesive;

coating a first adhesive on the first adhesive surface and drying to form a first adhesive layer;

providing a first release layer;

attaching the first adhesive surface to the first peeling layer through the first adhesive layer;

coating the first adhesive on the second adhesive surface and drying to form a second adhesive layer;

providing a second release layer; and

attaching the second adhesive surface to the second peeling layer through the second adhesive layer;

and one side of the first stripping layer, which is far away from the first adhesive layer, and one side of the second stripping layer, which is far away from the second adhesive layer, are both provided with a concave-convex structure.