Cloth-based tape and preparation method thereof

Abstract

The present invention discloses a cloth-based tape and a preparation method thereof, wherein the cloth-based tape comprises a laminated adhesive layer, a substrate layer and a release layer, wherein the substrate layer comprises a cloth-based substrate bonded to the adhesive layer and an acrylic coating disposed between the cloth-based substrate and the release layer. The cloth-based tape and the preparation method thereof of the present invention obtain the release layer by coating the substrate layer with a release agent, thereby solving the problem that the self-wound cloth-based tape is laborious to unroll and is easily deformed after unrolling.

Description

Technical Field

[0001] The invention belongs to the technical field of cloth-based tapes, and in particular relates to a cloth-based tape and a preparation method thereof. Background Art

[0002] At present, there are mature plugging tape products for the automotive industry on the market, which have a good plugging effect. There are two types of tapes for winding, one is to use release paper (or release film) for isolation and the other is self-winding. Products with isolation winding can be used for die-cutting, but are not easy to use for slitting. The slippage problem cannot be solved during slitting, and the size and cutting edges are prone to abnormalities; self-winding products can be used for slitting, but it is not easy to peel off the release paper (release film) again to make an isolation winding die-cut product, because the peeling force is too strong, which will cause the tape to deform, narrow, and other abnormalities. These have a certain impact on the tape production end.

[0003] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0004] The object of the present invention is to provide a cloth-based tape and a preparation method thereof, which can solve the problem that the self-reeled cloth-based tape is laborious to unroll and easily deformed after unrolling.

[0005] In order to achieve the above-mentioned purpose, a technical solution provided by a specific embodiment of the present invention is as follows: a cloth-based tape, comprising a stacked adhesive layer, a substrate layer and a release layer, wherein the substrate layer comprises a cloth-based substrate bonded to the adhesive layer and an acrylic coating arranged between the cloth-based substrate and the release layer.

[0006] In one or more embodiments of the present invention, the adhesive layer is made of an adhesive, and the adhesive is a rubber-type pressure-sensitive adhesive.

[0007] In one or more embodiments of the present invention, the dry coating weight of the adhesive is 50 to 150 g / m 2 .

[0008] In one or more embodiments of the present invention, the release layer is prepared by coating a release agent.

[0009] In one or more embodiments of the present invention, the coating dry weight of the release agent is 0.5 to 20 g / m 2 .

[0010] In one or more embodiments of the present invention, the mesh size of the substrate layer is 100-160 meshes.

[0011] A specific embodiment of the present invention further provides a method for preparing the cloth-based tape as described above, comprising the following steps:

[0012] obtaining a substrate layer;

[0013] Applying a release agent on the acrylic coating on the substrate layer, and obtaining a release layer on the substrate layer after drying;

[0014] An adhesive is coated on the side of the substrate layer that is away from the release layer, and after drying, an adhesive layer is obtained on the substrate layer, which is the cloth-based tape of the present invention.

[0015] In one or more embodiments of the present invention, in the step of obtaining a release layer on the substrate layer after drying, the drying temperature is 80 to 180° C. and the drying time is 0.1 to 5 min.

[0016] In one or more embodiments of the present invention, in the step of obtaining the adhesive layer on the substrate layer after drying, the drying temperature is 30 to 190° C. and the drying time is 1 to 5 min.

[0017] In one or more embodiments of the present invention, the preparation method further comprises the following steps:

[0018] The dried release layer is subjected to a curing treatment, the curing temperature is 30 to 100° C., and the curing time is 1 to 30 days.

[0019] Compared with the prior art, the cloth-based tape and preparation method thereof of the present invention obtains a release layer by coating a release agent on a substrate layer, thereby solving the problem that the self-wound cloth-based tape is difficult to peel off and is easily deformed after peeling off. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0021] The cloth-based tape in one example of the present invention includes an adhesive layer, a substrate layer and a release layer that are stacked, wherein the substrate layer includes a cloth-based substrate bonded to the adhesive layer and an acrylic coating disposed between the cloth-based substrate and the release layer.

[0022] The cloth-based adhesive tape of the present invention obtains a release layer by coating a release agent on a substrate layer, thereby solving the problem that the self-wound cloth-based adhesive tape is laborious to unroll and is easily deformed after unrolling.

[0023] Specifically, the substrate layer may be a JH-02 coated cloth base produced by Zhangjiagang Free Trade Zone Fiber International Trading Co., Ltd., which has an acrylic coating thereon.

[0024] Specifically, the mesh size of the substrate layer is 100 to 160 meshes.

[0025] Specifically, the adhesive layer is made of an adhesive, and the adhesive is a rubber-type pressure-sensitive adhesive. Preferably, the adhesive is M164 pressure-sensitive adhesive produced by Jiangsu Jinghua New Materials Technology Co., Ltd.

[0026] Specifically, the dry coating weight of the adhesive is 50 to 150 g / m 2 .

[0027] Specifically, the release layer is prepared by coating a release agent. Preferably, the release agent is Omnofa EU127.

[0028] Specifically, the coating dry weight of the release agent is 0.5 to 20 g / m 2 .

[0029] A specific embodiment of the present invention further provides a method for preparing the cloth-based tape as described above, comprising the following steps:

[0030] S1, obtaining a substrate layer;

[0031] S2, coating a release agent on the acrylic coating on the substrate layer, and obtaining a release layer on the substrate layer after drying;

[0032] S3. Apply adhesive on the side of the substrate layer facing away from the release layer, and after drying, obtain an adhesive layer on the substrate layer, which is the cloth-based tape of the present invention.

[0033] Specifically, in step S2, the drying temperature is 80-180°C, and the drying time is 0.1-5 minutes.

[0034] Specifically, in step S3, the drying temperature is 30 to 190° C., and the drying time is 1 to 5 minutes.

[0035] Specifically, the preparation method further comprises the following steps:

[0036] The dried release layer is subjected to a curing treatment, the curing temperature is 30 to 100° C., and the curing time is 1 to 30 days.

[0037] The aging treatment can enhance the bonding force between the release layer and the substrate layer. The aging treatment can be performed before or after the adhesive is applied, or both before and after the adhesive is applied, that is, twice aging.

[0038] Preferably, the preparation method further comprises the following steps:

[0039] The obtained cloth-based adhesive tape is subjected to a self-reeling process to obtain a finished cloth-based adhesive tape.

[0040] It can be understood that, in the preparation method of the present invention, the drying temperature or the aging temperature refers to the average temperature.

[0041] The cloth-based adhesive tape and the preparation method thereof of the present invention will be described in detail below in conjunction with specific embodiments and comparative examples.

[0042] Example 1

[0043] A substrate layer is obtained, and a layer of release agent is coated on one side of the acrylic coating on the substrate layer. The coating dry weight of the release agent is 3 g / m 2 , and then a heating and drying treatment is performed, the heating temperature is 140° C., the heating time is 0.2 min, and after heating and drying, a release layer is obtained on the substrate layer.

[0044] A layer of adhesive is applied on the side of the substrate layer away from the release layer, and the dry coating weight of the adhesive is 100 g / m 2 , and then a heating and drying treatment is performed, the heating temperature is 120° C., the heating time is 5 min, and after heating and drying, an adhesive layer is obtained on the substrate layer, that is, the cloth-based tape of the present invention is obtained.

[0045] Example 2

[0046] A substrate layer is obtained, and a layer of release agent is coated on one side of the acrylic coating on the substrate layer, and the coating dry weight of the release agent is 10 g / m 2 , and then a heating and drying treatment is performed, the heating temperature is 130° C., the heating time is 1 min, and after heating and drying, a release layer is obtained on the substrate layer.

[0047] A layer of adhesive is applied on the side of the substrate layer away from the release layer, and the dry coating weight of the adhesive is 100 g / m 2 , and then a heating and drying treatment is performed, the heating temperature is 130° C., the heating time is 4 minutes, and after heating and drying, an adhesive layer is obtained on the substrate layer, that is, the cloth-based tape of the present invention is obtained.

[0048] Example 3

[0049] A substrate layer is obtained, and a layer of release agent is coated on one side of the acrylic coating on the substrate layer. The coating dry weight of the release agent is 15 g / m 2 , and then a heating and drying treatment is performed, the heating temperature is 120° C., the heating time is 3 min, and after heating and drying, a release layer is obtained on the substrate layer.

[0050] A layer of adhesive is applied on the side of the substrate layer away from the release layer, and the dry coating weight of the adhesive is 100 g / m 2, and then a heating and drying treatment is performed, the heating temperature is 130° C., the heating time is 5 min, and after heating and drying, an adhesive layer is obtained on the substrate layer, that is, the cloth-based tape of the present invention is obtained.

[0051] Example 4

[0052] A substrate layer is obtained, and a layer of release agent is coated on one side of the acrylic coating on the substrate layer. The coating dry weight of the release agent is 0.5 g / m 2 , and then a heating and drying treatment is performed, the heating temperature is 180°C, the heating time is 0.1 min, and after heating and drying, a release layer is obtained on the substrate layer.

[0053] A layer of adhesive is applied on the side of the substrate layer away from the release layer, and the dry coating weight of the adhesive is 50 g / m 2 , and then a heating and drying treatment is performed, the heating temperature is 170° C., the heating time is 1 min, and after heating and drying, an adhesive layer is obtained on the substrate layer, that is, the cloth-based tape of the present invention is obtained.

[0054] Example 5

[0055] A substrate layer is obtained, and a layer of release agent is coated on one side of the acrylic coating on the substrate layer. The coating dry weight of the release agent is 20 g / m 2 , and then a heating and drying treatment is performed, the heating temperature is 80°C, the heating time is 5 minutes, and after heating and drying, a release layer is obtained on the substrate layer.

[0056] A layer of adhesive is applied on the side of the substrate layer away from the release layer, and the dry coating weight of the adhesive is 150 g / m 2 , and then a heating and drying treatment is performed, the heating temperature is 180° C., the heating time is 5 min, and after heating and drying, an adhesive layer is obtained on the substrate layer, that is, the cloth-based tape of the present invention is obtained.

[0057] Comparative Example 1

[0058] Obtain a substrate layer, and apply a layer of adhesive on the side of the substrate layer away from the acrylic coating, with the dry coating weight of the adhesive being 100 g / m 2 , and then a heating and drying treatment is performed, the heating temperature is 120°C, the heating time is 5 minutes, and after heating and drying, an adhesive layer is obtained on the substrate layer, that is, a cloth-based tape is obtained.

[0059] Comparative Example 2

[0060] Obtain a substrate layer, and apply a layer of adhesive on the side of the substrate layer away from the acrylic coating, with the dry coating weight of the adhesive being 150 g / m 2 , and then a heating and drying treatment is performed, the heating temperature is 180°C, the heating time is 5 minutes, and after heating and drying, an adhesive layer is obtained on the substrate layer.

[0061] A release film is attached to the adhesive layer to obtain a cloth-based tape.

[0062] It should be noted that in the above embodiments and comparative examples: the adhesive is: M164 pressure-sensitive glue of Jiangsu Jinghua New Materials Technology Co., Ltd.; the substrate layer is JH-02 coated cloth base (145 mesh) of Zhangjiagang Free Trade Zone Fiber International Trade Co., Ltd.; the release agent is Omnofa EU127; and the release film is HMX50T10S30 of Jiangyin Huamei Optoelectronics Technology Co., Ltd.

[0063] The cloth-based tapes in Examples 1 to 5 and Comparative Examples 1 and 2 were tested as follows:

[0064] (1) Hole blocking test: puncture resistance, waterproofness, paint compatibility, corrosion resistance and sound insulation and noise reduction.

[0065] (2) Self-unwinding test: According to the national standard "Determination of low-speed unwinding strength of pressure-sensitive adhesive tapes" GB / T 4850-2002.

[0066] The results are shown in the following table:

[0067]

[0068]

[0069] It can be seen from the above table that the cloth-based tape of the present invention can meet the use requirements of the automotive industry and solve the problems of the cloth-based tape being difficult to peel off after being rolled up and being easily deformed after being peeled off.

[0070] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0071] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A cloth-based tape, characterized in that: The invention comprises an adhesive layer, a substrate layer and a release layer which are stacked. The substrate layer comprises a cloth-based substrate bonded to the adhesive layer and an acrylic coating arranged between the cloth-based substrate and the release layer.

2. The cloth-based tape according to claim 1, characterized in that: The adhesive layer is made of an adhesive, and the adhesive is a rubber-type pressure-sensitive adhesive.

3. The cloth-based tape according to claim 2, characterized in that: The dry coating weight of the adhesive is 50 to 150 g / m 2 .

4. The cloth-based tape according to claim 1, characterized in that: The release layer is prepared by coating a release agent.

5. The cloth-based tape according to claim 4, characterized in that: The coating dry weight of the release agent is 0.5 to 20 g / m 2 .

6. The cloth-based tape according to claim 1, characterized in that: The mesh number of the substrate layer is 100 to 160 meshes.

7. A method for preparing a cloth-based tape according to any one of claims 1 to 6, characterized in that: The following steps are involved: obtaining a substrate layer; Applying a release agent on the acrylic coating on the substrate layer, and obtaining a release layer on the substrate layer after drying; An adhesive is coated on the side of the substrate layer that is away from the release layer, and after drying, an adhesive layer is obtained on the substrate layer, which is the cloth-based tape of the present invention.

8. The method for preparing a cloth-based tape according to claim 1, characterized in that: In the step of obtaining a release layer on the substrate layer after drying, the drying temperature is 80-180° C. and the drying time is 0.1-5 min.

9. The method for preparing a cloth-based tape according to claim 1, characterized in that: In the step of obtaining an adhesive layer on the substrate layer after drying, the drying temperature is 30-190° C. and the drying time is 1-5 min.

10. The method for preparing a cloth-based tape according to claim 1, characterized in that: The preparation method further comprises the following steps: The dried release layer is subjected to a curing treatment, the curing temperature is 30 to 100° C., and the curing time is 1 to 30 days.

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