CN220788461U - Removable adhesive tape - Google Patents
Removable adhesive tape Download PDFInfo
- Publication number
- CN220788461U CN220788461U CN202322230693.0U CN202322230693U CN220788461U CN 220788461 U CN220788461 U CN 220788461U CN 202322230693 U CN202322230693 U CN 202322230693U CN 220788461 U CN220788461 U CN 220788461U
- Authority
- CN
- China
- Prior art keywords
- pressure
- sensitive adhesive
- adhesive layer
- sap particles
- removable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002390 adhesive tape Substances 0.000 title claims abstract description 40
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims abstract description 69
- 239000002245 particle Substances 0.000 claims abstract description 59
- 239000010410 layer Substances 0.000 claims abstract description 56
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 229920002799 BoPET Polymers 0.000 claims description 7
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 28
- 239000000853 adhesive Substances 0.000 abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 11
- 239000003595 mist Substances 0.000 abstract description 7
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000005507 spraying Methods 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 230000001603 reducing effect Effects 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
A removable tape includes a substrate, a pressure-sensitive adhesive layer laminated on the substrate, and SAP particles dispersed within and/or on the surface of the pressure-sensitive adhesive layer. According to the removable adhesive tape disclosed by the utility model, the SAP particles are dispersed in the pressure-sensitive adhesive layer, when the adhesive tape attached to an object to be attached needs to be removed, the adhesive tape is sprayed with water or water mist, the SAP particles rapidly absorb water and expand, the adhesive tape and the surface to be attached are pushed away, the viscosity is reduced, the effect of easy removal is achieved, and meanwhile, the residual adhesive on the surface of the object to be attached can be reduced.
Description
Technical Field
The utility model relates to the technical field of adhesive tapes, in particular to a removable adhesive tape.
Background
The adhesive tape is generally prepared from special base materials such as textured paper, PET (polyethylene terephthalate), MOPP (metal-oxide-polypropylene) films, cloth bases and other coated rubber pressure-sensitive adhesives or acrylic acid and other pressure-sensitive adhesives, is widely used in home decoration, automobile paint shielding, industrial paint shielding, fixing and other scenes, and is divided into two types of removable and non-removable modes according to requirements, wherein the removable mode needs to be firmly attached, residual adhesive is not needed to be left when the adhesive is removed, high requirements are provided for designers, most of the adhesive is attached for a long time or the users do not remove the adhesive in time, time and labor are wasted when the adhesive is removed again, the phenomenon of paper breakage of the residual adhesive is easy to occur, and the residual adhesive needs to be slightly buckled or is wiped by using an organic solvent, so that the adhesive tape is quite unfriendly.
In addition, although some thermal adhesive tapes are available on the market, not all surfaces of the objects to be adhered are suitable for heating, and the thermal adhesive tapes have limitations.
The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
The utility model aims to provide a removable adhesive tape, which can effectively reduce the viscosity between a pressure-sensitive adhesive layer and the surface of an attached object when the adhesive tape is removed.
To achieve the above object, embodiments of the present utility model provide a removable tape including a substrate, a pressure-sensitive adhesive layer laminated on the substrate, and SAP particles dispersed in and/or on the pressure-sensitive adhesive.
In one or more embodiments of the utility model, the SAP particles have a particle size of less than or equal to 50 μm.
In one or more embodiments of the utility model, the SAP particles have a particle size of less than or equal to 10 μm.
In one or more embodiments of the utility model, the SAP particles are spherical.
In one or more embodiments of the present utility model, the pressure-sensitive adhesive layer has a thickness of 10 μm to 100 μm.
In one or more embodiments of the present utility model, the pressure-sensitive adhesive layer has a thickness of 15 μm to 30 μm.
In one or more embodiments of the present utility model, the substrate is any one of a textured paper, a PP film, and paper and plain paper.
In one or more embodiments of the utility model, the substrate has a thickness of 15 μm to 30 μm.
In one or more embodiments of the utility model, the removable tape further comprises a release layer disposed on the pressure sensitive adhesive layer, the pressure sensitive adhesive layer being adhered between the release layer and the substrate.
In one or more embodiments of the present utility model, the release layer is any one of silicone paper, release paper, PET release film, and PE release film.
Compared with the prior art, according to the removable adhesive tape provided by the embodiment of the utility model, the SAP particles arranged in and/or on the pressure-sensitive adhesive layer are dispersed, when the adhesive tape attached to an object to be attached needs to be removed, the adhesive tape is subjected to water spraying or water mist treatment, the SAP particles rapidly absorb water and expand to push the adhesive tape away from the surface to be attached, the viscosity is reduced, the effect of easy removal is achieved, and meanwhile, the residual adhesive on the surface of the object to be attached can be reduced.
Drawings
FIG. 1 is a schematic view of a removable adhesive tape according to an embodiment of the present utility model when attached to an adherend;
FIG. 2 is a schematic diagram of the removable adhesive tape according to an embodiment of the present utility model when the removable adhesive tape is attached to an object after spraying water or mist;
FIG. 3 is a schematic view of a removable tape according to an embodiment of the present utility model.
The main reference numerals illustrate:
1. a substrate; 2. a pressure-sensitive adhesive layer; 3. SAP particles; 4. a release layer; 5. and (5) sticking the object.
Detailed Description
The following detailed description of embodiments of the utility model is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the utility model is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated element or component without excluding other elements or components.
As shown in fig. 1 and 2, the removable tape according to the preferred embodiment of the present utility model includes a substrate 1, a pressure-sensitive adhesive layer 2 laminated on the substrate 1, and SAP particles 3 dispersed inside and/or on the surface of the pressure-sensitive adhesive.
It will be appreciated that the SAP particles 3 in the present utility model, that is, SAP particles made of a super absorbent resin (also called super absorbent resin), are capable of absorbing water of several hundred times to thousands times its own weight and are generally insoluble in solvents such as toluene, ethyl acetate, etc. Specifically, the SAP particles may be AQUALIC CS of the japan catalyst, but may be SAP particles 3 purchased from other sources.
It should be noted that the tackiness of the adhesive tape (i.e., tackiness of the pressure-sensitive adhesive layer 2) is mainly determined by the tackiness of the pressure-sensitive adhesive layer 2 or the pressure-sensitive adhesive (the pressure-sensitive adhesive layer 2 is made of a pressure-sensitive adhesive), and thus a pressure-sensitive adhesive having a high tackiness can be selected, which can have good tackiness when the adhesive tape is attached to the adherend 5. When the adhesive tape and the object to be adhered 5 are required to be separated (as shown in fig. 2), water spraying or water mist treatment can be carried out before the adhesive tape is removed, SAP particles 3 in the pressure-sensitive adhesive layer 2 and/or on the surface can quickly absorb water and expand, the adhesive tape and the surface of the object to be adhered 5 are pushed away, the adhesive property of the adhesive tape is reduced, the effect of easy removal is achieved, and residual adhesive is avoided as far as possible; in addition, even if a small amount of residual glue exists, the residual glue can be well cleaned after water spraying or water mist treatment.
The removable adhesive tape provided by the utility model has the viscosity reducing property under certain conditions by dispersing the SAP particles 3 in the pressure-sensitive adhesive layer 2 and/or on the surface, and has the effect of being convenient to remove, so that the pressure-sensitive adhesive layer is modified in the prior art, namely, the formula of the pressure-sensitive adhesive layer is not required to be improved, and the existing pressure-sensitive adhesive can be purchased in the market directly.
The SAP particles 3 in the removable tape of the present utility model may be added and uniformly mixed during the process of preparing the pressure-sensitive adhesive or before coating the pressure-sensitive adhesive on the substrate 1.
In a specific embodiment, the SAP particles 3 have a particle size of less than or equal to 50 μm. Under other conditions, the larger the particle size of the SAP particles 3, the lower the tackiness of the pressure-sensitive adhesive layer 2, and when the particle size of the SAP particles 3 is 50 μm, the pressure-sensitive adhesive layer 2 is already affected to some extent. Thus, the particle size of the SAP-particles 3 is less than or equal to 50 μm. In the present embodiment, the particle size of the SAP particles 3 refers to the D97 particle size of the SAP particles 3.
It will be appreciated that the particle size of SAP particles 3 (e.g., AQUALIC CS of japan catalyst) available directly on the market may not be within the above-described requirements, that a sieve may be used to screen SAP particles 3 of a suitable size before use, and that SAP particles 3 available directly on the market may be crushed or broken to a size that meets our standards.
Preferably, the particle size of the SAP particles 3 may be less than or equal to 10 μm in order to have both the tackiness of the pressure-sensitive adhesive layer 2 and the effect of post-debonding.
In one embodiment, the SAP particles 3 are spherical, and the spherical SAP particles 3 change more uniformly when absorbing water and expanding, so as to control the reduction of the viscosity of the pressure-sensitive adhesive layer 2 after water spraying or water mist treatment before the removal of the adhesive tape.
In one embodiment, the thickness of the pressure-sensitive adhesive layer 2 is 10 μm to 100 μm. The thicker the thickness of the pressure-sensitive adhesive layer 2, the smaller the effect of the SAP particles 3 on the decrease in the tackiness of the pressure-sensitive adhesive layer 2, and the decrease in the tackiness-reducing effect at the time of the later tackiness reduction, under other conditions; the thinner the thickness of the pressure-sensitive adhesive layer 2 is, the greater the effect of the SAP particles 3 on the decrease in the tackiness of the pressure-sensitive adhesive layer 2 is, and the effect of the tack reduction at the time of the post-tack reduction is increased.
Preferably, the thickness of the pressure-sensitive adhesive layer 2 is 15 μm to 30 μm. When the thickness of the pressure-sensitive adhesive layer 2 is within this range, it is possible to combine the tackiness before tape peeling and the effect of reducing tackiness by the SAP particles 3 when tape peeling is required.
In one embodiment, the pressure-sensitive adhesive layer 2 may be formed by coating a pressure-sensitive adhesive selected from the group consisting of a solvent rubber pressure-sensitive adhesive, an oily acrylic pressure-sensitive adhesive and a hot-melt pressure-sensitive adhesive. In order to avoid the decrease in the tackiness of the adhesive tape of the present utility model caused by the absorption of water in the pressure-sensitive adhesive by the superabsorbent resin, the solvent for preparing the pressure-sensitive adhesive is usually an organic solvent such as toluene, ethyl acetate, etc., and the organic solvent does not dissolve the superabsorbent resin. Specifically, the pressure-sensitive adhesive can be a crystal oil adhesive W-906 or other products which can be directly purchased in the market.
Specifically, the pressure-sensitive adhesive can be directly purchased in the market or prepared according to the requirement.
In one embodiment, the substrate 1 is any one of a textured paper, a PP film, a PET film, and paper and plain paper.
In one embodiment, as shown in fig. 3, the removable tape further comprises a release layer 4 disposed on the pressure sensitive adhesive layer 2, the pressure sensitive adhesive layer 2 being bonded between the release layer 4 and the substrate 1. Specifically, the release layer 4 may be any one of a common silicone paper, a release paper, a PET release film and a PE release film.
The removable tape of the present utility model will be described in detail with reference to specific examples.
Example 1
The high-viscosity oil-based acrylic pressure-sensitive adhesive A (the wafer oil-based adhesive W-906) is added with 1% of dry SAP particles (AQUALIC CS of Japanese catalyst with the particle diameter of 10 mu m) with the dry weight of the adhesive (namely the solid content (mass)) and uniformly stirred, then the mixture is coated on a 25 mu m PET film, the adhesive coating thickness is 25 mu m (namely the thickness of the pressure-sensitive adhesive layer), and the mixture is adhered to release paper for standby after being dried, so that the removable adhesive tape is obtained.
Example 2
The high-viscosity oil-based acrylic pressure-sensitive adhesive A (the wafer oil-based adhesive W-906) is added with 1% of dry SAP particles (AQUALIC CS of Japanese catalyst with the particle diameter of 20 μm) with the dry weight of the adhesive (i.e. the solid content (mass)) and uniformly stirred, then the mixture is coated on a 25 mu m PET film with the adhesive coating thickness of 25 mu m (i.e. the thickness of the pressure-sensitive adhesive layer), and the mixture is dried and attached to release paper for standby, so that the removable adhesive tape is obtained.
Example 3
The high-viscosity oil-based acrylic pressure-sensitive adhesive A (the wafer oil-based adhesive W-906) is added with 3% of dry SAP particles (AQUALIC CS of Japanese catalyst with the particle diameter of 10 mu m) with the dry weight of the adhesive (namely the solid content (mass)) and uniformly stirred, coated on a 25 mu m PET film with the adhesive coating thickness of 25 mu m (namely the thickness of the pressure-sensitive adhesive layer), and the adhesive is adhered to release paper for standby after drying, so that the removable adhesive tape is obtained.
Example 4
The high-viscosity oil-based acrylic pressure-sensitive adhesive A (the wafer oil-based adhesive W-906) is added with 1% of dry SAP particles (AQUALIC CS of Japanese catalyst with the particle diameter of 20 mu m) with the dry weight of the adhesive (namely the solid content (mass)) and uniformly stirred, then the mixture is coated on a 25 mu m PET film, the adhesive coating thickness is 40 mu m (namely the thickness of the pressure-sensitive adhesive layer), and the mixture is adhered to release paper for standby after being dried, so that the removable adhesive tape is obtained.
Comparative example 1
And (3) coating the high-viscosity oil acrylic pressure-sensitive adhesive A (the Jinghua oil adhesive W-906) on a 25 mu m PET film, coating the adhesive with the thickness of 25 mu m (namely the thickness of the pressure-sensitive adhesive layer), and attaching release paper after drying for later use to obtain the adhesive tape.
The tapes obtained in examples 1 to 4 and comparative example 1 were subjected to the following performance test:
the testing method comprises the following steps: the above samples were each cut out to a length of 20cm and a width of 25mm, and the peel force, the initial tack and the holding power were measured, and the residual glue was removed from the painted steel plate after 1 hour and 7 days, to obtain the data of the following table.
In summary, according to the removable adhesive tape of the embodiment of the present utility model, the SAP particles dispersed in the pressure-sensitive adhesive layer and/or on the surface of the pressure-sensitive adhesive layer are used to spray water or mist to the adhesive tape when the adhesive tape attached to the object needs to be removed, so that the SAP particles rapidly absorb water and expand to push the adhesive tape away from the surface to be attached, thereby reducing the viscosity, achieving the effect of easy removal, and reducing the residual adhesive on the surface of the object to be attached.
The foregoing descriptions of specific exemplary embodiments of the present utility model are presented for purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the utility model and its practical application to thereby enable one skilled in the art to make and utilize the utility model in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.
Claims (10)
1. A removable adhesive tape comprising a substrate, a pressure-sensitive adhesive layer laminated on the substrate, and SAP particles dispersed in and/or on the pressure-sensitive adhesive layer.
2. The removable tape of claim 1, wherein the SAP particles have a particle size of less than or equal to 50 μm.
3. The removable tape of claim 2, wherein the SAP particles have a particle size of less than or equal to 10 μm.
4. The removable tape of claim 1, wherein the SAP particles are spherical.
5. The removable tape of claim 1, wherein the pressure sensitive adhesive layer has a thickness of 10 μm to 100 μm.
6. The removable tape of claim 5, wherein the pressure sensitive adhesive layer has a thickness of 15 μm to 30 μm.
7. The removable tape of claim 1, wherein the substrate is any one of textured paper, PP film, PET film, and paper, and plain paper.
8. The removable tape of claim 1, wherein the substrate has a thickness of 15 μm to 30 μm.
9. The removable tape of claim 1, further comprising a release layer disposed on the pressure sensitive adhesive layer, the pressure sensitive adhesive layer being adhered between the release layer and the substrate.
10. The removable tape of claim 9, wherein the release layer is any one of silicone paper, release paper, PET release film, and PE release film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322230693.0U CN220788461U (en) | 2023-08-18 | 2023-08-18 | Removable adhesive tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322230693.0U CN220788461U (en) | 2023-08-18 | 2023-08-18 | Removable adhesive tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220788461U true CN220788461U (en) | 2024-04-16 |
Family
ID=90635844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322230693.0U Active CN220788461U (en) | 2023-08-18 | 2023-08-18 | Removable adhesive tape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220788461U (en) |
-
2023
- 2023-08-18 CN CN202322230693.0U patent/CN220788461U/en active Active
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