CN110893703A - Adhesive film and device with same - Google Patents

Adhesive film and device with same Download PDF

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Publication number
CN110893703A
CN110893703A CN201811083875.7A CN201811083875A CN110893703A CN 110893703 A CN110893703 A CN 110893703A CN 201811083875 A CN201811083875 A CN 201811083875A CN 110893703 A CN110893703 A CN 110893703A
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CN
China
Prior art keywords
adhesive film
grooves
area
film
base layer
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.)
Pending
Application number
CN201811083875.7A
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Chinese (zh)
Inventor
黄秋逢
游象岳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Usun Technology Co Ltd
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Usun Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Usun Technology Co Ltd filed Critical Usun Technology Co Ltd
Publication of CN110893703A publication Critical patent/CN110893703A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • 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
    • C09J7/40—Adhesives in the form of films or foils characterised by release liners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • 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
    • C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
    • C09J2203/326—Applications of adhesives in processes or use of adhesives in the form of films or foils for bonding electronic components such as wafers, chips or semiconductors
    • 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
    • C09J2301/18—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet characterized by perforations in the 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
    • C09J2301/312—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier parameters being the characterizing feature

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Adhesive Tapes (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

The invention provides an adhesive film, which comprises a membrane, a flexible base layer and a through hole, wherein the flexible base layer is positioned on one side of the membrane; a plurality of grooves are formed in one side, opposite to the diaphragm, of the flexible base layer; the flexible base layer comprises a first area and a second area, the through holes are located in the first area, and the average interval of the grooves in the first area is smaller than that of the grooves in the second area. The pasting film is good in exhaust effect and good in pasting effect.

Description

Adhesive film and device with same
Technical Field
The invention relates to the technical field of adhesive films, in particular to an adhesive film and a device with the same.
Background
When the adhesive film is attached to the surfaces of devices such as electronic products and light sources, the adhesive film and the surfaces of the devices are required to achieve the effect of attaching without wrinkles and bubbles. However, the conventional adhesive film has problems that it is difficult to exhaust air and air bubbles are easily left, particularly when the area of the adhesive film is large. The operation difficulty of attaching the adhesive film is large, and the attaching effect is not perfect.
Disclosure of Invention
The invention aims to provide an adhesive film which is easy to exhaust and can ensure better bonding effect and a device with the adhesive film.
In order to achieve the above object, the present invention provides an adhesive film, including a film, a flexible substrate located at one side of the film, and a through hole penetrating the film and the flexible substrate; a plurality of grooves are formed in one side, opposite to the diaphragm, of the flexible base layer; the flexible base layer comprises a first area and a second area, the through holes are located in the first area, and the average interval of the grooves in the first area is smaller than that of the grooves in the second area.
Further, the width of the groove is 0.06-0.2 mm.
Further, the depth of the groove is greater than 0 and less than or equal to 0.1 mm.
Further, the distance between two adjacent grooves is greater than 0 and less than or equal to 2 mm.
Further, a plurality of the grooves communicate with each other.
Further, the grooves in the first area are radially distributed by taking the through hole as a center.
Further, the first region also comprises a film forming corner region for film forming.
Further, the cross-sectional shape of the groove is any one of a rectangle, a U-shape, and a polygon.
Further, the flexible base layer is made of silica gel or rubber materials.
The invention also provides a device with the adhesive film, and the adhesive film is adhered to the surface of the device.
The pasting film provided by the invention is provided with a plurality of grooves for exhausting on the flexible base layer, and the space between the through holes in the flexible base layer and the grooves in the film forming corner area is smaller than that in other areas according to the actual use condition, so that the exhausting effect is better enhanced. In addition, the size of the groove is controlled, so that the groove can be completely filled under pressure or heat after being smoothly exhausted, and foreign substances are prevented from permeating through the groove.
Drawings
Fig. 1 is a cross-sectional view of a sticky film according to an embodiment of the present invention.
Fig. 2 is a schematic partial structure view of a first region of the adhesive film shown in fig. 1.
Fig. 3 is a schematic partial structure view of a second region of the adhesive film shown in fig. 1.
Description of the main elements
Figure BDA0001802612810000021
Figure BDA0001802612810000031
The following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, the present invention provides an adhesive film 100, which includes a film 10, a flexible substrate 20 disposed on one side of the film 10, and a through hole 30 penetrating the film 10 and the flexible substrate 20. Wherein, a plurality of grooves 21 are disposed on a side of the flexible substrate 20 opposite to the membrane 10.
It is understood that the adhesive film 100 is a film having an attaching function, and can protect the surface of the device to be attached from the external environment. In the attaching process of the adhesive film 100, if the air between the adhesive film 100 and the device surface cannot be completely exhausted, the residual air will form bubbles, resulting in poor attaching effect of the adhesive film 100. Therefore, the grooves 21 formed in the flexible substrate 20 facilitate the gas to be discharged and prevent the formation of bubbles, thereby improving the bonding effect of the adhesive film 100.
Specifically, the flexible base layer 20 is mainly made of, but not limited to, silicone or a rubber material. The flexible substrate 20 has good adhesion and can deform under stress or heat, since the groove 21 needs to be completely filled after the degassing to prevent foreign materials from penetrating from the groove 21 into the space between the film 10 and the device surface.
It should be noted that the cross-sectional dimension of the groove 21 is too small to facilitate the gas discharge, and too large to ensure complete filling after the gas discharge. Therefore, it is necessary to control the sectional size of the grooves 21 and the number of the grooves 21 per unit area so that the grooves 21 are completely filled after being smoothly exhausted.
Preferably, the width of the groove 21 is 0.06-0.2 mm; the depth of the groove 21 is more than 0 and less than or equal to 0.1 mm; the distance between two adjacent grooves 21 is greater than 0 and equal to or less than 2 mm.
In the present embodiment, the cross-sectional shape of the groove 21 is rectangular, and in other embodiments, the cross-sectional shape of the groove 21 may be U-shaped or polygonal, but is not limited thereto.
Further, referring to fig. 2 and fig. 3, the flexible substrate 20 is divided into a first region 201 and a second region 202, in this embodiment, the through hole 30 is located in the first region 201, and the second region 202 is a region of the flexible substrate 20 other than the first region 201 and is adjacent to the first region 201. Specifically, the average pitch of the grooves 21 in the first region 201 is smaller than the average pitch of the grooves 21 in the second region 202, so that the exhaust capacity of the first region 201 is higher than that of the second region 202.
It is understood that the perforations 30 are included in the inner venting edge of the adhesive film 100 to allow the gas to be collected and discharged, thereby improving the venting capability thereof to facilitate rapid venting and improve the adhesion around the perforations 30. In addition, the shape, size and number of the through holes 30 depend on the surface structure of the attached device, for example, when the attached device is a smart phone, the adhesive film 100 opens the through holes 30 for the sound output hole, the key hole and other structures on the surface of one side of the smart phone screen.
Furthermore, the grooves 21 formed in the flexible base layer 20 are communicated with each other, so that gas can be rapidly discharged in multiple directions, and a stronger gas discharge effect is achieved. Specifically, in the present embodiment, the grooves 21 in the first area 201 are radially distributed around the through hole 30, and the grooves 21 in the second area 202 are distributed in a net shape. It is understood that when the number of the through holes 30 is two or more, the grooves 21 located in the vicinity of each through hole 30 are radially distributed centering on the corresponding one of the through holes 30.
In another embodiment, the first region 201 further includes a corner region for releasing the adhesive film, it is understood that the adhesive film 100 is usually attached to the release film before use, and the corner region for releasing the adhesive film 100 is lifted to separate the adhesive film 100 from the release film is finally attached to the device to be laminated, so that a stronger air-releasing capability is required.
Further, the present invention also provides a device having an adhesive film, the adhesive film 100 provided in any of the above embodiments is attached to a surface of the device, and the device may be an electronic product, such as a mobile phone and a computer, or a light source device, but is not limited thereto.
In addition, other modifications within the spirit of the invention may occur to those skilled in the art, and such modifications are, of course, included within the scope of the invention as claimed.

Claims (10)

1. An adhesive film, includes the diaphragm, its characterized in that: the flexible substrate is positioned on one side of the diaphragm, and a through hole penetrating through the diaphragm and the flexible substrate; a plurality of grooves are formed in one side, opposite to the diaphragm, of the flexible base layer; the flexible base layer comprises a first area and a second area, the through holes are located in the first area, and the average interval of the grooves in the first area is smaller than that of the grooves in the second area.
2. The adhesive film of claim 1, wherein: the width of the groove is 0.06-0.2 mm.
3. The adhesive film of claim 1, wherein: the depth of the groove is greater than 0 and less than or equal to 0.1 mm.
4. The adhesive film of claim 1, wherein: the distance between two adjacent grooves is larger than 0 and smaller than or equal to 2 mm.
5. The adhesive film of claim 1, wherein: a plurality of the grooves communicate with each other.
6. The adhesive film of claim 1, wherein: the grooves in the first area are radially distributed by taking the through hole as a center.
7. The adhesive film of claim 1, wherein: the first region further includes a film-raising corner region for raising a film.
8. The adhesive film of claim 1, wherein: the cross-sectional shape of the groove is any one of a rectangle, a U-shape and a polygon.
9. The adhesive film of claim 1, wherein: the flexible base layer is made of silica gel or rubber materials.
10. A device having a sticker, wherein the sticker of any one of claims 1-9 is attached to a surface of the device.
CN201811083875.7A 2018-09-12 2018-09-17 Adhesive film and device with same Pending CN110893703A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW107132146A TWI674196B (en) 2018-09-12 2018-09-12 Adhesive film and device with adhesive film
TW107132146 2018-09-12

Publications (1)

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CN110893703A true CN110893703A (en) 2020-03-20

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KR (1) KR20200031041A (en)
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TW (1) TWI674196B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200609322A (en) * 2004-05-25 2006-03-16 Lintec Corp Readily bondable tacky sheet and process for producing the same
JP2007320153A (en) * 2006-05-31 2007-12-13 Optrex Corp Water-capturing member
CN101233201A (en) * 2005-05-11 2008-07-30 爱若涂层制品有限公司 Self adhesive material with a water soluble protective layer
JP2012082260A (en) * 2010-10-07 2012-04-26 Lintec Corp Adhesive sheet
CN202878830U (en) * 2012-08-13 2013-04-17 温州宝联创新科技服务有限公司 Thin film without attached bubbles
CN203994957U (en) * 2014-07-10 2014-12-10 东莞市纳利光学材料有限公司 A kind of easy location diaphragm of easily tearing

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005075966A (en) * 2003-09-02 2005-03-24 Lintec Corp Method for manufacturing pressure-sensitive adhesive sheet and pressure-sensitive adhesive sheet
JP4540962B2 (en) * 2003-10-10 2010-09-08 リンテック株式会社 Adhesive sheet and method for producing the same
JP2007520623A (en) * 2005-01-28 2007-07-26 エルジー・ケム・リミテッド Adhesive sheet with multi-stage air discharge passage
JP2010083915A (en) * 2008-09-29 2010-04-15 Nichiban Co Ltd Peeling sheet for forming unevenness on adhesive layer surface of adhesive sheet
JP5438408B2 (en) * 2009-07-15 2014-03-12 リンテック株式会社 Manufacturing method of adhesive sheet
CN204622699U (en) * 2015-01-07 2015-09-09 西门子公司 The surface texture that film resistant bubbles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200609322A (en) * 2004-05-25 2006-03-16 Lintec Corp Readily bondable tacky sheet and process for producing the same
CN101233201A (en) * 2005-05-11 2008-07-30 爱若涂层制品有限公司 Self adhesive material with a water soluble protective layer
JP2007320153A (en) * 2006-05-31 2007-12-13 Optrex Corp Water-capturing member
JP2012082260A (en) * 2010-10-07 2012-04-26 Lintec Corp Adhesive sheet
CN202878830U (en) * 2012-08-13 2013-04-17 温州宝联创新科技服务有限公司 Thin film without attached bubbles
CN203994957U (en) * 2014-07-10 2014-12-10 东莞市纳利光学材料有限公司 A kind of easy location diaphragm of easily tearing

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Publication number Publication date
TW202010627A (en) 2020-03-16
JP6741742B2 (en) 2020-08-19
TWI674196B (en) 2019-10-11
JP2020041118A (en) 2020-03-19
KR20200031041A (en) 2020-03-23

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Application publication date: 20200320