CN112143394B - Fingerprint-proof adhesive tape for wireless charger - Google Patents

Fingerprint-proof adhesive tape for wireless charger Download PDF

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Publication number
CN112143394B
CN112143394B CN201910571326.2A CN201910571326A CN112143394B CN 112143394 B CN112143394 B CN 112143394B CN 201910571326 A CN201910571326 A CN 201910571326A CN 112143394 B CN112143394 B CN 112143394B
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parts
layer
fingerprint
black ink
adhesive tape
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CN112143394A (en
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夏厚君
涂大记
潘华
杨晓明
向建军
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Zhejiang Ouren New Materials Co ltd
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Zhejiang Ouren New Materials Co ltd
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Priority to CN202210185841.9A priority Critical patent/CN114828603A/en
Priority to CN202210271552.0A priority patent/CN114716929A/en
Priority to CN202210279589.8A priority patent/CN115260932B/en
Priority to CN201910571326.2A priority patent/CN112143394B/en
Priority to PCT/CN2019/120163 priority patent/WO2020258699A1/en
Publication of CN112143394A publication Critical patent/CN112143394A/en
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/255—Polyesters
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/10—Printing inks based on artificial resins
    • C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
    • C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2467/00—Presence of polyester
    • C09J2467/006—Presence of polyester in the substrate

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Adhesive Tapes (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention discloses an anti-fingerprint adhesive tape for a wireless charger, which comprises a black ink layer, a base material layer and an adhesive layer, wherein the black ink layer and the adhesive layer are respectively positioned on the upper surface and the lower surface of the base material layer; the black ink layer is obtained by drying black ink, and the black ink comprises the following components in parts by weight: 60-80 parts of waterborne polyurethane, 1-5 parts of carbon black, 1' -methylene tri (4-isocyanic acid) benzene 1-5 parts, 1-1.5 parts of sodium silicate, 1-1.5 parts of carboxymethyl cellulose, 0.1-0.3 part of sodium tripolyphosphate, 1-5 parts of polyethyleneimine, 0.5-2 parts of octadecyl dimethyl benzyl ammonium chloride, 2-4 parts of a light absorbing agent, 0.5-1.5 parts of a coupling agent, 0.5-1 part of chitosan and 15-25 parts of deionized water. The fingerprint-proof adhesive tape for the wireless charger has fingerprint-proof performance, fingerprint traces can not be left after the adhesive tape is used for many times in various environments, and the adhesive tape can be prevented from being corroded by fingerprint sweat stains.

Description

Fingerprint-proof adhesive tape for wireless charger
Technical Field
The invention belongs to the technical field of adhesive tapes, and particularly relates to an anti-fingerprint adhesive tape for a wireless charger.
Background
The wireless charging technology, also known as inductive charging and non-contact charging, is a new charging technology generated by wireless power transmission technology. The wireless charging technology has rapidly developed in recent years, but also meets a plurality of technical difficulties, such as improving the charging efficiency, reducing the cost and shortening the effective charging distance. In order to obtain higher charging efficiency and reduce or eliminate the influence of an electromagnetic field on the mobile phone during charging, an electromagnetic shielding film is required for shielding. The electromagnetic shielding film is used for isolating the influence of an electromagnetic field on the mobile phone, preventing materials such as metal and the like from absorbing the electromagnetic wave emitted by the transmitting terminal equipment and generating a magnetic field in the opposite direction. In the wireless charging receiving end of the mobile phone, if the electromagnetic shielding film is not arranged, the wireless charging equipment cannot complete short-distance charging work. The electromagnetic shielding film needs to be fixed on the interference source through an adhesive tape.
At present, the adhesive tape does not have anti-fingerprint performance, and the residual fingerprint traces after multiple uses not only affect the appearance, but also have certain influence on the performance of the film material. Therefore, how to develop a fingerprint-proof adhesive tape becomes an effort for those skilled in the art.
Disclosure of Invention
The invention aims to provide a fingerprint preventing adhesive tape for a wireless charger, which has fingerprint preventing performance, can not leave fingerprint traces after being used for many times in various environments, and can avoid the corrosion of fingerprint sweat stains on the adhesive tape.
In order to achieve the purpose, the invention adopts the technical scheme that: the anti-fingerprint adhesive tape for the wireless charger comprises a black ink layer, a base material layer and an adhesive layer, wherein the black ink layer and the adhesive layer are respectively positioned on the upper surface and the lower surface of the base material layer, and a release layer is arranged on one side, opposite to the base material layer, of the adhesive layer;
the black ink layer is obtained by drying black ink, and the black ink comprises the following components in parts by weight:
60-80 parts of water-based polyurethane,
1 to 5 parts of carbon black,
1 to 5 parts of 1, 1' -methylene tri (4-isocyanic acid) benzene,
1 to 1.5 parts of sodium silicate,
1 to 1.5 parts of carboxymethyl cellulose,
0.1 to 0.3 part of sodium tripolyphosphate,
1-5 parts of polyethyleneimine,
0.5 to 2 parts of octadecyl dimethyl benzyl ammonium chloride,
2-4 parts of a light absorbing agent,
0.5 to 1.5 parts of a coupling agent,
0.5 to 1 part of chitosan,
15-25 parts of deionized water.
The technical scheme of further improvement in the technical scheme is as follows:
1. in the above scheme, the light absorbent is selected from nano Al/Al2O3Core-shell material, nano nickel powder or nickel powder/carbon nano tube compound.
2. In the scheme, the coupling agent is selected from one of a coupling agent KH-580, a coupling agent KH-561 and a coupling agent KBM 403.
3. In the scheme, the base material layer is a 2-4 mu m PET polyester film.
4. In the scheme, the thickness of the black ink layer is 1-2 mu m.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the fingerprint-proof adhesive tape for the wireless charger, the polyethyleneimine and the octadecyl dimethyl benzyl ammonium chloride are added into the waterborne polyurethane, the carbon black and the 1, 1' -methylene tri (4-isocyanic acid) benzene, so that the fingerprint-proof adhesive tape has fingerprint-proof performance, fingerprint traces cannot be remained after repeated use in various environments, and the adhesive tape can be prevented from being corroded by fingerprint sweat stains; meanwhile, the anti-stain performance of the anti-fingerprint adhesive tape is enhanced, namely stain on the adhesive tape can be easily wiped off without residue after being left for a period of time in a high-temperature and high-humidity environment, so that the attachment of stains is reduced, and the cleaning difficulty is greatly reduced.
Drawings
FIG. 1 is a schematic diagram of an anti-fingerprint adhesive tape structure for a wireless charger according to the present invention.
In the above drawings: 1. a black ink layer; 2. a substrate layer; 3. an adhesive layer; 4. and a release layer.
Detailed Description
In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.
The invention is further described below with reference to the following examples:
examples 1 to 4: the anti-fingerprint adhesive tape for the wireless charger comprises a black ink layer 1, a base material layer 2 and an adhesive layer 3, wherein the black ink layer 1 and the adhesive layer 3 are respectively positioned on the upper surface and the lower surface of the base material layer 2, and a release layer 4 is arranged on one side, opposite to the base material layer 2, of the adhesive layer 3;
the black ink layer 1 is obtained by drying black ink, and the black ink comprises the following components in parts by weight, as shown in table 1:
TABLE 1
Components Example 1 Example 2 Example 3 Example 4
Aqueous polyurethane 60 portions of 75 portions of 80 portions 65 portions of
Carbon black 1 part of 5 portions of 3 portions of 2 portions of
1, 1' -methine tris (4-isocyanato) benzene 1.5 parts of 2 portions of 1 part of 5 portions of
Sodium silicate 1.5 parts of 1.2 parts of 1 part of 1.3 parts of
Carboxymethyl cellulose 1.2 parts of 1.5 parts of 1.4 parts of 1 part of
Sodium tripolyphosphate 0.1 part 0.2 part 0.3 part 0.25 part
Polyethylene imine 1 part of 5 portions of 3 portions of 2 portions of
Octadecyl dimethyl benzyl ammonium chloride 2 portions of 0.5 portion 1 part of 1.5 parts of
Light absorber 2 portions of 3 portions of 2.5 parts of 4 portions of
Coupling agent 1 part of 0.5 portion 0.8 portion of 1.5 parts of
Chitosan 0.8 portion of 0.6 part 0.5 portion 1 part of
Deionized water 18 portions of 25 portions of 15 portions of 16 portions of
Example 1 the light absorber was selected from nano Al/Al2O3The core-shell material is characterized in that the coupling agent is selected from a coupling agent KH-580, the base material layer 2 is a PET layer with the thickness of 2 mu m, and the thickness of the black ink layer 1 is 1 mu m.
In example 2, the light absorbing agent is selected from nano nickel powder, the coupling agent is selected from coupling agent KBM403, the base material layer 2 is a PET layer with a thickness of 2.5 μm, and the thickness of the black ink layer 1 is 1.3 μm.
In example 3, the light absorbing agent is selected from nickel powder/carbon nanotube composite, the coupling agent is selected from KH-561, the base material layer 2 is a PET layer with a thickness of 4 μm, and the black ink layer 1 has a thickness of 2 μm.
In example 4, the light absorbing agent is selected from nickel powder/carbon nanotube composite, the coupling agent is selected from coupling agent KH-580, the substrate layer 2 is a PET layer with a thickness of 3.5 μm, and the thickness of the black ink layer 1 is 1.5 μm.
The preparation method of the anti-fingerprint adhesive tape for the wireless charger comprises the following steps: adding 60-80 parts of waterborne polyurethane, 15-25 parts of deionized water, 1-5 parts of 1, 1' -methylene tri (4-isocyanic acid) benzene, 0.01-0.03 part of sodium tripolyphosphate, 1-5 parts of carbon black, 1-1.5 parts of sodium silicate, 1-5 parts of polyethyleneimine, 0.5-2 parts of octadecyl dimethyl benzyl ammonium chloride, 0.5-1.5 parts of coupling agent, 1-1.5 parts of carboxymethyl cellulose, 2-4 parts of light absorbent and 0.5-1 part of chitosan into a high-speed stirring dispersing agent for stirring, and uniformly mixing to obtain black ink;
and coating the black ink on the substrate layer 2, and drying to obtain the anti-fingerprint adhesive tape for the wireless charger.
Comparative examples 1 to 2: the anti-fingerprint adhesive tape for the wireless charger comprises a black ink layer 1, a base material layer 2 and an adhesive layer 3, wherein the black ink layer 1 and the adhesive layer 3 are respectively positioned on the upper surface and the lower surface of the base material layer 2, and a release layer 4 is arranged on one side, opposite to the base material layer 2, of the adhesive layer 3;
the black ink layer 1 is obtained by drying black ink, and the black ink comprises the following components in parts by weight, as shown in table 2:
TABLE 2
Components Comparative example 1 Comparative example 2
Aqueous polyurethane 60 portions of 80 portions
Carbon black 1 part of 5 portions of
1, 1' -methine tris (4-isocyanato) benzene 1.8 parts of 2 portions of
Sodium silicate 1.5 parts of 1.2 parts of
Carboxymethyl cellulose 1.2 parts of 1.5 parts of
Sodium tripolyphosphate 0.1 part 0.2 part
Polyethylene imine - 5 portions of
Octadecyl dimethyl benzyl ammonium chloride 2 portions of -
Light absorber 2.5 parts of 3 portions of
Coupling agent 0.8 portion of 0.5 portion
Chitosan 0.8 portion of 0.6 part
Deionized water 18 portions of 20 portions of
Comparative example the procedure was as in example.
Comparative example 1 light absorber selected from nano Al/Al2O3The core-shell material is characterized in that the coupling agent is selected from a coupling agent KH-580, the base material layer 2 is a PET layer with the thickness of 2 mu m, and the thickness of the black ink layer 1 is 1 mu m.
In comparative example 2, the light absorbing agent is selected from nano nickel powder, the coupling agent is selected from coupling agent KBM403, the base material layer 2 is a PET layer with the thickness of 2.5 μm, and the thickness of the black ink layer 1 is 1.3 μm.
The properties of the anti-fingerprint adhesive tapes for wireless chargers prepared in the above examples 1 to 4 and comparative examples 1 to 2 are shown in table 3:
TABLE 3
Figure 14095DEST_PATH_IMAGE002
The test method is as follows:
fingerprint prevention test: the appearance of the black ink layer was observed by pressing 10 times with a finger on the black ink layer, and the meanings indicated by the relevant symbols in table 3 were as follows:
o: without fingerprint
X: a fingerprint exists;
and (3) dirt resistance test: and (3) using a ZEBRA oil pen, wherein the angle between the oil pen and the surface of the film layer is about 90 degrees, applying a force of about 1N to draw 5 10mm handwriting on the surface of the film layer at a constant speed, then placing the sample in an environment with the temperature of 60 ℃ and the humidity of 95 percent for 2 hours, taking out the sample, and wiping the surface with alcohol, wherein no trace residue is left on the surface of the sample, and the sample is qualified.
As shown in the evaluation results of table 3, the fingerprint prevention performance of the fingerprint prevention tape for a wireless charger of the examples was excellent, no trace remained in the case of multiple finger presses, and the stain on the tape could be easily wiped off without remaining after being left for a certain period of time under a high temperature and high humidity environment, whereas the fingerprint prevention performance of comparative example 1 was relatively poor and the stain resistance performance of comparative example 2 was much worse; therefore, the fingerprint-proof adhesive tape for the wireless charger has the advantages that the fingerprint-proof performance is improved, the stain resistance of the fingerprint-proof adhesive tape for the wireless charger is improved, namely, the stains on the adhesive tape can be easily wiped off and do not remain for a period of time under the high-temperature and high-humidity environment, the attachment of stains is reduced, and the cleaning difficulty is greatly reduced.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (5)

1. The utility model provides an prevent fingerprint sticky tape for wireless charger which characterized in that: the adhesive comprises a black ink layer (1), a base material layer (2) and an adhesive layer (3), wherein the black ink layer (1) and the adhesive layer (3) are respectively positioned on the upper surface and the lower surface of the base material layer (2), and a release layer (4) is arranged on one side, opposite to the base material layer (2), of the adhesive layer (3);
the black ink layer (1) is obtained by drying black ink, and the black ink comprises the following components in parts by weight:
60-80 parts of water-based polyurethane,
1 to 5 parts of carbon black,
1 to 5 parts of 1, 1' -methylene tri (4-isocyanic acid) benzene,
1 to 1.5 parts of sodium silicate,
1 to 1.5 parts of carboxymethyl cellulose,
0.1 to 0.3 part of sodium tripolyphosphate,
1-5 parts of polyethyleneimine,
0.5 to 2 parts of octadecyl dimethyl benzyl ammonium chloride,
2-4 parts of a light absorbing agent,
0.5 to 1.5 parts of a coupling agent,
0.5 to 1 part of chitosan,
15-25 parts of deionized water.
2. The anti-fingerprint adhesive tape for a wireless charger according to claim 1, wherein: the above-mentionedThe light absorbing agent is selected from nano Al/Al2O3Core-shell material, nano nickel powder or nickel powder/carbon nano tube compound.
3. The anti-fingerprint adhesive tape for a wireless charger according to claim 1, wherein: the coupling agent is selected from one of a coupling agent KH-580, a coupling agent KH-561 and a coupling agent KBM 403.
4. The anti-fingerprint adhesive tape for the wireless charger according to any one of claims 1 to 3, wherein: the substrate layer (2) is a PET polyester film with the thickness of 2-4 microns.
5. The anti-fingerprint adhesive tape for the wireless charger according to any one of claims 1 to 3, wherein: the thickness of the black ink layer (1) is 1-2 mu m.
CN201910571326.2A 2019-06-28 2019-06-28 Fingerprint-proof adhesive tape for wireless charger Active CN112143394B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN202210185841.9A CN114828603A (en) 2019-06-28 2019-06-28 Electromagnetic shielding film
CN202210271552.0A CN114716929A (en) 2019-06-28 2019-06-28 Easy-to-clean electromagnetic shielding film
CN202210279589.8A CN115260932B (en) 2019-06-28 2019-06-28 Adhesive tape with fingerprint prevention function
CN201910571326.2A CN112143394B (en) 2019-06-28 2019-06-28 Fingerprint-proof adhesive tape for wireless charger
PCT/CN2019/120163 WO2020258699A1 (en) 2019-06-28 2019-11-22 Anti-fingerprint tape for wireless charger

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Application Number Priority Date Filing Date Title
CN201910571326.2A CN112143394B (en) 2019-06-28 2019-06-28 Fingerprint-proof adhesive tape for wireless charger

Related Child Applications (3)

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CN202210185841.9A Division CN114828603A (en) 2019-06-28 2019-06-28 Electromagnetic shielding film
CN202210271552.0A Division CN114716929A (en) 2019-06-28 2019-06-28 Easy-to-clean electromagnetic shielding film
CN202210279589.8A Division CN115260932B (en) 2019-06-28 2019-06-28 Adhesive tape with fingerprint prevention function

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CN112143394B true CN112143394B (en) 2022-02-11

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CN202210185841.9A Pending CN114828603A (en) 2019-06-28 2019-06-28 Electromagnetic shielding film
CN201910571326.2A Active CN112143394B (en) 2019-06-28 2019-06-28 Fingerprint-proof adhesive tape for wireless charger
CN202210271552.0A Pending CN114716929A (en) 2019-06-28 2019-06-28 Easy-to-clean electromagnetic shielding film

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CN115181509A (en) * 2022-08-15 2022-10-14 江苏伊诺尔新材料科技有限公司 Manufacturing method of novel ultra-soft PI (polyimide) composite adhesive tape
CN115820139A (en) * 2022-12-14 2023-03-21 江苏伊诺尔新材料科技有限公司 Magnetic conduction double sticky tape suitable for wireless field of charging
CN116075059B (en) * 2023-02-27 2023-07-07 健鼎（湖北）电子有限公司 Coated aluminum sheet for PCB drilling and preparation method thereof

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