TWI770584B - Protective film, curved structure and method for attaching protective film - Google Patents

Protective film, curved structure and method for attaching protective film Download PDF

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TWI770584B
TWI770584B TW109128320A TW109128320A TWI770584B TW I770584 B TWI770584 B TW I770584B TW 109128320 A TW109128320 A TW 109128320A TW 109128320 A TW109128320 A TW 109128320A TW I770584 B TWI770584 B TW I770584B
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protective layer
center
periphery
main body
strip
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TW109128320A
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TW202208176A (en
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舒童
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大陸商業成科技（成都）有限公司
大陸商業成光電（深圳）有限公司
英特盛科技股份有限公司
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B33/00—Packaging articles by applying removable, e.g. strippable, coatings
    • B65B33/02—Packaging small articles, e.g. spare parts for machines or engines
    • 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
    • C09J7/24—Plastics; Metallised plastics based on macromolecular compounds obtained 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
    • 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
    • C09J7/24—Plastics; Metallised plastics based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/241—Polyolefin, e.g.rubber
    • C09J7/243—Ethylene or propylene 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
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C09J7/24—Plastics; Metallised plastics based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/245—Vinyl resins, e.g. polyvinyl chloride [PVC]
    • 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
    • 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
    • C09J7/403—Adhesives in the form of films or foils characterised by release liners characterised by the structure of the release feature
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/14—Protective coatings, e.g. hard coatings
    • 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
    • C09J2423/00—Presence of polyolefin
    • C09J2423/04—Presence of homo or copolymers of ethene
    • C09J2423/046—Presence of homo or copolymers of ethene in the substrate
    • 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
    • C09J2427/00—Presence of halogenated polymer
    • C09J2427/006—Presence of halogenated polymer in the substrate
    • 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
    • C09J2433/00—Presence of (meth)acrylic polymer
    • C09J2433/006—Presence of (meth)acrylic polymer in the substrate
    • 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
    • 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
    • C09J2469/00—Presence of polycarbonate
    • C09J2469/006—Presence of polycarbonate in the substrate

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Adhesive Tapes (AREA)

Abstract

One embodiment of the present disclosure provides a protective film. The protective film includes a release layer and a protective layer attached to the release layer. The protective layer includes a strip extending in a spiral shape. One embodiment of the present disclosure also provides a curved structure. The curved structure has a curved surface. A protective layer is attached to the curved surface, and the protective layer includes a strip extending in a spiral shape. One embodiment of the present disclosure also provides a method for attaching a protective film.

Description

保護膜、曲面結構及保護膜貼附方法 Protective film, curved surface structure and protective film attaching method

本發明涉及保護膜技術領域，尤其涉及一種保護膜、曲面結構及保護膜貼附方法。 The invention relates to the technical field of protective films, in particular to a protective film, a curved surface structure and a method for attaching the protective film.

習知，將保護膜貼附於產品表面時，存在氣泡、褶皺等問題。另，在後續製程中，在將保護膜在產品上撕下時，還存在殘留膜附著在產品上的問題。 Conventionally, when the protective film is attached to the surface of the product, there are problems such as air bubbles and wrinkles. In addition, in the subsequent process, when the protective film is torn off from the product, there is still a problem that the residual film adheres to the product.

本發明一實施例提供一種保護膜，其包括：一離型層；以及一保護層，貼附於該離型層上；其中，該保護層包括呈螺旋狀延伸的條形。 An embodiment of the present invention provides a protective film, which includes: a release layer; and a protective layer attached to the release layer; wherein the protective layer includes a strip extending in a spiral shape.

由於該保護膜的保護層包括呈螺旋狀延伸的條形，其貼附在產品表面上時，與產品接觸的面積較小，進而可保證平整貼附而不產生褶皺及氣泡。另，保護層包括的條形呈螺旋狀延伸，使得後續製程中，將保護層在產品上撕 下時，該保護層可以由條形的一端拉拔後，呈螺旋狀拉伸進而被撕下，而不會有殘留膜的存在。 Since the protective layer of the protective film includes strips extending in a spiral shape, when it is attached to the surface of the product, the contact area with the product is small, thereby ensuring smooth attachment without generating wrinkles and air bubbles. In addition, the strips included in the protective layer extend in a spiral shape, so that in the subsequent process, the protective layer is torn on the product. When the protective layer is pulled down, the protective layer can be pulled from one end of the strip, then stretched in a spiral shape and then torn off without the existence of residual film.

本發明一實施例還提供一種曲面結構，其具有彎曲表面，其中，該彎曲表面上貼附有一保護層，該保護層包括呈螺旋狀延伸的條形。 An embodiment of the present invention further provides a curved surface structure having a curved surface, wherein a protective layer is attached to the curved surface, and the protective layer includes a strip extending in a spiral shape.

由於該曲面結構上的保護層包括呈螺旋狀延伸的條形，使得後續製程中，將保護層在產品上撕下時，該保護層可以由條形的一端拉拔後，呈螺旋狀拉伸進而被撕下，而不會有殘留膜的存在。 Since the protective layer on the curved structure includes a strip that extends in a spiral shape, in the subsequent process, when the protective layer is torn off from the product, the protective layer can be pulled from one end of the strip and then stretched in a spiral shape. It is then torn off without the presence of a residual film.

本發明一實施例還提供一種保護膜貼附方法，其包括：提供上述的保護膜；使該離型層與該保護層相剝離；以及將該保護層與該離型層相剝離的一面貼附於一待貼合物上。 An embodiment of the present invention also provides a method for attaching a protective film, which includes: providing the above-mentioned protective film; peeling the release layer from the protective layer; Attached to a to-be-applied object.

由於上述的保護膜具有呈螺旋狀延伸的條形，使得該貼附方法中，保護層可平整貼附於待貼合物的表面而不產生褶皺及氣泡。另，由於上述的保護膜之保護層包括的條形呈螺旋狀延伸，使得後續製程中，將保護層在待貼合物上撕下時，該保護層可以由條形的一端拉拔後，呈螺旋狀拉伸進而被撕下，而不會有殘留膜的存在。 Since the above-mentioned protective film has a strip shape extending in a spiral shape, in this attaching method, the protective layer can be flatly attached to the surface of the object to be attached without generating wrinkles and air bubbles. In addition, since the strips included in the protective layer of the above-mentioned protective film extend in a spiral shape, in the subsequent process, when the protective layer is torn off from the object to be attached, the protective layer can be pulled from one end of the strips, It is helically stretched and then torn off without the presence of residual film.

10:保護膜 10: Protective film

11:離型層 11: Release layer

12:第一離型膜 12: The first release film

121:第一主體部 121: The first main body

122:第一拉拔頭 122: The first pulling head

13:第二離型膜 13: The second release film

131:第二主體部 131: Second main body

132:第二拉拔頭 132: Second pulling head

14:保護層 14: Protective layer

142:起撕頭 142: Tear off the head

15:定位孔 15: Positioning hole

20:曲面結構 20: Surface Structure

21:彎曲表面 21: Curved Surface

圖1為本發明第一實施例的保護膜的平面示意圖。 FIG. 1 is a schematic plan view of a protective film according to a first embodiment of the present invention.

圖2為圖1中第一離型膜的平面示意圖。 FIG. 2 is a schematic plan view of the first release film in FIG. 1 .

圖3為圖1中第二離型膜的平面示意圖。 FIG. 3 is a schematic plan view of the second release film in FIG. 1 .

圖4為本發明第二實施例的保護層的平面示意圖。 FIG. 4 is a schematic plan view of a protective layer according to a second embodiment of the present invention.

圖5為本發明第三實施例的保護層的平面示意圖。 FIG. 5 is a schematic plan view of a protective layer according to a third embodiment of the present invention.

圖6為本發明第四實施例的保護層的平面示意圖。 FIG. 6 is a schematic plan view of a protective layer according to a fourth embodiment of the present invention.

圖7為本發明第五實施例的保護層的平面示意圖。 FIG. 7 is a schematic plan view of a protective layer according to a fifth embodiment of the present invention.

圖8為本發明第六實施例的保護層的平面示意圖。 FIG. 8 is a schematic plan view of a protective layer according to a sixth embodiment of the present invention.

圖9為本發明第七實施例的保護層的平面示意圖。 FIG. 9 is a schematic plan view of a protective layer according to a seventh embodiment of the present invention.

圖10為本發明第八實施例的保護層的平面示意圖。 FIG. 10 is a schematic plan view of a protective layer according to an eighth embodiment of the present invention.

圖11為本發明一實施例的曲面結構立體示意圖。 FIG. 11 is a three-dimensional schematic diagram of a curved surface structure according to an embodiment of the present invention.

圖12為本發明一實施例的保護膜貼附方法的流程圖。 FIG. 12 is a flowchart of a method for attaching a protective film according to an embodiment of the present invention.

為了能夠更清楚地理解本發明的上述目的、特徵和優點，下面結合附圖和具體實施例對本發明進行詳細描述。需要說明的是，在不衝突的情況下，本申請的實施例及實施例中的特徵可以相互組合。 In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments may be combined with each other in the case of no conflict.

在下面的描述中闡述了很多具體細節以便於充分理解本發明，所描述的實施例僅是本發明一部分實施例，而不是全部的實施例。基於本發明中的實施例，本領域普通技術人員在沒有做出創造性勞動前提下所獲得的所有其他實施例，都屬本發明保護的範圍。 In the following description, many specific details are set forth in order to facilitate a full understanding of the present invention, and the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

除非另有定義，本文所使用的所有的技術和科學術語與屬本發明的技術領域的技術人員通常理解的含義相同。本文中在本發明的說明書中所使用的術語只是為了描述具體的實施例的目的，不是旨在於限制本發明。 Unless otherwise defined, 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 terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.

圖1為本發明第一實施例的保護膜10的平面示意圖。如圖1所示，保護膜10包括離型層11以及貼附於該離型層11上的保護層14。其中，該保護層14包括呈螺旋狀延伸的條形，且螺旋狀延伸的條形自中心處往外擴散延伸。 FIG. 1 is a schematic plan view of the protective film 10 according to the first embodiment of the present invention. As shown in FIG. 1 , the protective film 10 includes a release layer 11 and a protective layer 14 attached to the release layer 11 . Wherein, the protective layer 14 includes a bar shape extending in a spiral shape, and the bar shape extending in a spiral shape diffuses and extends outward from the center.

由於保護層14包括被切割出的條形，使得其貼附在產品表面上時，與產品接觸的面積較小，進而可保證平整貼附而不產生褶皺及氣泡。另，保護層14包括的條形呈螺旋狀延伸，使得後續製程中，將保護層14在產品上撕下時，該保護層14可以由條形的一端(起撕頭142)拉拔後，呈螺旋狀拉伸進而被撕下，而不會有殘留膜的存在。 Since the protective layer 14 includes a cut strip, when it is attached to the surface of the product, the contact area with the product is small, thereby ensuring smooth attachment without generating wrinkles and air bubbles. In addition, the strips included in the protective layer 14 extend in a spiral shape, so that in the subsequent process, when the protective layer 14 is torn off from the product, the protective layer 14 can be pulled from one end of the strip (tear head 142 ), It is helically stretched and then torn off without the presence of residual film.

圖1中，保護層14包括一條呈螺旋狀延伸的條形，定義條形的外部的一端為起撕頭142，其用於在將保護層14在產品上撕下時起頭。於其他實施例中，保護層14可包括多條呈螺旋狀延伸的條形，定義每一條形的外部的一端為起撕頭142。即，保護層14可包括複數起撕頭142。 In FIG. 1 , the protective layer 14 includes a strip extending in a spiral shape, and one end defining the outer portion of the strip is a tear-off head 142 , which is used to start when the protective layer 14 is torn off from the product. In other embodiments, the protective layer 14 may include a plurality of strips extending in a spiral shape, and an outer end of each strip is defined as a tearing head 142 . That is, the protective layer 14 may include a plurality of tear-off heads 142 .

於一實施例中，保護層14藉由刀模裁切方式被分割為螺旋狀延伸的條形。其中，為保證精確裁切，模切時採用圓刀加工。於一實施例中，保護層14被分割成的螺旋狀延伸的條形之間為完全斷開的。圖1中，條形之間的分割線自中心發散並延伸至周邊，且條形之間雖然為斷開的，但整體上條形之間為緊密排列的，無明顯間隙。於其他實施例中，保護層14被打孔線模切成螺旋狀延伸的條形，即，保護層14分割成的條形之間保留有一些易斷的連接點，而非是完全斷開的。該打孔線為具有複數通孔的線段。該易斷的連接點尺寸儘量縮小，以利於後續保護層14從產品上去除。 In one embodiment, the protective layer 14 is cut into spirally extending strips by die cutting. Among them, in order to ensure accurate cutting, a circular knife is used for die cutting. In one embodiment, the helically extending strips into which the protective layer 14 is divided are completely disconnected. In Fig. 1, the dividing line between the bars diverges from the center and extends to the periphery, and although the bars are disconnected, the bars are closely arranged on the whole without obvious gaps. In other embodiments, the protective layer 14 is die-cut into spirally extending strips by punching wires, that is, some fragile connection points remain between the divided strips of the protective layer 14, rather than being completely disconnected. of. The punched line is a line segment with a plurality of through holes. The size of the breakable connection point is reduced as much as possible to facilitate subsequent removal of the protective layer 14 from the product.

該保護膜10僅包括離型層11和保護層14兩層結構，保護層14的一側貼附於離型層11上，另一側無需再貼附一層離型層11，在進行保護膜 10貼附時，直接將保護層14從離型層11上剝離，貼附到產品上即可。相較於將保護層夾設於兩層離型層之間的三層結構，該保護膜10降低了離型膜原物料成本，貼附過程操作時間短，提高了貼附效率。 The protective film 10 only includes a two-layer structure of a release layer 11 and a protective layer 14. One side of the protective layer 14 is attached to the release layer 11, and another layer of the release layer 11 does not need to be attached to the other side. 10 When attaching, the protective layer 14 can be directly peeled off from the release layer 11 and attached to the product. Compared with the three-layer structure in which the protective layer is sandwiched between two release layers, the protective film 10 reduces the raw material cost of the release film, shortens the operation time of the attachment process, and improves the attachment efficiency.

於一實施例中，該離型層11未被該保護層14覆蓋的區域設置有用於與組裝治具(圖未示)上的定位柱相配合的定位孔15。在保護膜10貼附過程中，將待貼合物放置於一治具中，然後將保護膜10藉由定位孔15固定於與放置有該待貼合物的治具相對的另一組裝治具中。然後，將離型層11和保護層14剝離，再採用半自動機台將保護層14與該離型層11相剝離的一面貼附於該待貼合物的表面上。 In one embodiment, a region of the release layer 11 not covered by the protective layer 14 is provided with positioning holes 15 for matching with positioning posts on an assembly jig (not shown). During the attaching process of the protective film 10 , the object to be attached is placed in a fixture, and then the protective film 10 is fixed to another set of fixtures opposite to the fixture on which the object to be attached is placed through the positioning holes 15 . in the tool. Then, peel off the release layer 11 and the protective layer 14, and then use a semi-automatic machine to attach the peeled side of the protective layer 14 and the release layer 11 to the surface of the object to be pasted.

於一實施例中，定位孔15可以為圓孔、橢圓孔等，在此對其形狀不作限制。另，圖1中，定位孔15設置於離型層11的邊緣位置，共三個。於其他實施例中，定位孔15的數量不作限制。 In one embodiment, the positioning hole 15 may be a circular hole, an oval hole, or the like, and the shape thereof is not limited herein. In addition, in FIG. 1 , there are three positioning holes 15 arranged at the edge position of the release layer 11 . In other embodiments, the number of the positioning holes 15 is not limited.

保護層14和離型層11之間具有黏合膠，圖1中，保護層14的整個表面均貼附於離型層11，使得該黏合膠能夠得到良好的保護。當保護膜10中，離型層11被剝離後，黏合膠留在保護層14上，使得保護層14能夠藉由該黏合膠貼附於待貼合物的表面。 There is an adhesive between the protective layer 14 and the release layer 11 . In FIG. 1 , the entire surface of the protective layer 14 is attached to the release layer 11 , so that the adhesive can be well protected. In the protective film 10, after the release layer 11 is peeled off, the adhesive remains on the protective layer 14, so that the protective layer 14 can be attached to the surface of the object to be attached by the adhesive.

於一實施例中，保護層14的材料可以為聚碳酸酯、聚甲基丙烯酸甲酯、聚乙烯、聚氯乙烯或者聚對苯二甲酸乙二醇酯。上述材料化學性質穩定並且透明度高，使得保護層14貼附於待貼合物(如，鏡頭或曲面玻璃)的表面上不會影響產品的光學特性等。 In one embodiment, the material of the protective layer 14 may be polycarbonate, polymethyl methacrylate, polyethylene, polyvinyl chloride or polyethylene terephthalate. The above materials have stable chemical properties and high transparency, so that the protective layer 14 is attached to the surface of the object to be attached (eg, lens or curved glass) without affecting the optical properties of the product.

於一實施例中，該離型層11包括相拼接的第一離型膜12和第二離型膜13。該保護層14的一部分貼附於第一離型膜12上，另一部分貼附於第二離型膜13上。 In one embodiment, the release layer 11 includes a first release film 12 and a second release film 13 that are joined together. A part of the protective layer 14 is attached to the first release film 12 , and the other part is attached to the second release film 13 .

如圖2所示，該第一離型膜12包括第一主體部121以及由該第一主體部121延伸的第一拉拔頭122。其中，該保護層14的一部分貼附於第一主體部121上，該第一拉拔頭122不與該保護層14貼附，其用於在將該第一離型膜12和該保護層14剝離時起頭。當需要剝離第一離型膜12和該保護層14時，只需拉起第一拉拔頭122，即可將第一離型膜12揭起，進而使第一主體部121和該保護層14分開。圖2中，第一離型膜12大致呈“T”字型。 As shown in FIG. 2 , the first release film 12 includes a first main body portion 121 and a first pulling head 122 extending from the first main body portion 121 . Wherein, a part of the protective layer 14 is attached to the first main body portion 121, and the first pulling head 122 is not attached to the protective layer 14, which is used for the first release film 12 and the protective layer 14 Start when peeling off. When the first release film 12 and the protective layer 14 need to be peeled off, only the first pulling head 122 can be pulled up, the first release film 12 can be lifted up, and then the first main body 121 and the protective layer can be pulled up. 14 separate. In FIG. 2 , the first release film 12 is approximately in a "T" shape.

如圖3所示，該第二離型膜13包括第二主體部131以及由該第二主體部131延伸的第二拉拔頭132。同樣，保護層14的一部分貼附於第二主體部131刪，該第二拉拔頭132不與該保護層14貼附，其用於在將該第二離型膜13和該保護層14剝離時起頭。當需要剝離第二離型膜13和該保護層14時，只需拉起第二拉拔頭132，即可將第二離型膜13揭起，進而使第二主體部131和該保護層14分開。圖3中，第二離型膜13大致呈“T”字型。 As shown in FIG. 3 , the second release film 13 includes a second main body portion 131 and a second pulling head 132 extending from the second main body portion 131 . Similarly, a part of the protective layer 14 is attached to the second main body portion 131 , and the second pulling head 132 is not attached to the protective layer 14 , which is used for the second release film 13 and the protective layer 14 Start when peeling. When the second release film 13 and the protective layer 14 need to be peeled off, only the second pulling head 132 can be pulled up, the second release film 13 can be lifted up, and the second main body 131 and the protective layer can be pulled up. 14 separate. In FIG. 3 , the second release film 13 is approximately in a "T" shape.

請繼續參閱圖1，該第一主體部121和該第二主體部131拼接大致呈矩形，沿該保護膜10的厚度方向上，該第一主體部121的投影和該第二主體部131的投影不重疊，且該第一主體部121的投影和該第二主體部131的投影完全覆蓋該保護層14。另，該第一拉拔頭122朝向該第二離型膜13延伸，該第二拉拔頭132朝向該第一離型膜12延伸。沿該保護膜10的厚度方向上，該第一拉拔頭122的投影落入該第二主體部131上，該第二拉拔頭132的投影落入該第一主體部121上。 Please continue to refer to FIG. 1 , the first body portion 121 and the second body portion 131 are spliced into a substantially rectangular shape. Along the thickness direction of the protective film 10 , the projection of the first body portion 121 and the projection of the second body portion 131 The projections do not overlap, and the projection of the first body portion 121 and the projection of the second body portion 131 completely cover the protective layer 14 . In addition, the first pulling head 122 extends toward the second release film 13 , and the second pulling head 132 extends toward the first release film 12 . Along the thickness direction of the protective film 10 , the projection of the first pulling head 122 falls on the second main body part 131 , and the projection of the second pulling head 132 falls on the first main body part 121 .

圖1中，該第一拉拔頭122自該第一主體部121的中部延伸而出，該第二拉拔頭132自該第二主體部131的中部延伸而出。藉此，可以使得第一離型膜12或第二離型膜13與保護層14剝離時，受到的力較為均勻。 In FIG. 1 , the first pulling head 122 extends from the middle of the first body portion 121 , and the second pulling head 132 extends from the middle of the second body portion 131 . In this way, when the first release film 12 or the second release film 13 is peeled off from the protective layer 14, the force received is relatively uniform.

圖1中，沿該保護膜10的厚度方向上，該第一拉拔頭122的投影和該第二拉拔頭132的投影不重疊。即，第一拉拔頭122和第二拉拔頭132為交錯設置。沿該保護膜10的厚度方向上，對應於第一拉拔頭122的位置，由上至下依次為第一拉拔頭122、第一離型膜12的第一主體部121以及保護層14；對應於第二拉拔頭132的位置，由上至下依次為第二拉拔頭132、第二離型膜13的第二主體部131以及保護層14。 In FIG. 1 , along the thickness direction of the protective film 10 , the projection of the first drawing head 122 and the projection of the second drawing head 132 do not overlap. That is, the first pulling head 122 and the second pulling head 132 are staggered. Along the thickness direction of the protective film 10 , corresponding to the position of the first pulling head 122 , from top to bottom are the first pulling head 122 , the first main body portion 121 of the first release film 12 and the protective layer 14 . ; Corresponding to the position of the second pulling head 132 , from top to bottom are the second pulling head 132 , the second main body portion 131 of the second release film 13 and the protective layer 14 .

圖1中，第一拉拔頭122和第二拉拔頭132緊鄰設置，均為矩形條狀，且數量均為1個。於其他實施例中，第一拉拔頭122和第二拉拔頭132亦可以間隔設置，形狀亦不限，數量亦不作限制。 In FIG. 1 , the first pulling head 122 and the second pulling head 132 are arranged next to each other, both are rectangular strips, and the number is one. In other embodiments, the first pulling head 122 and the second pulling head 132 can also be arranged at intervals, and the shape and quantity are not limited.

圖1中，保護層14整體上大致呈圓形，其與待貼合物的表面相適配。於其他實施例中，保護層14整體形狀不作限制，例如，圖4中，保護層14整體上大致呈矩形。 In FIG. 1 , the protective layer 14 is substantially circular as a whole, which is adapted to the surface to be attached. In other embodiments, the overall shape of the protective layer 14 is not limited. For example, in FIG. 4 , the protective layer 14 is substantially rectangular as a whole.

圖1中，保護層14包括一條螺旋狀延伸的條形。即，在後續製程中，如果將保護層14從產品上撕下時，只需要拉起該條形的一端，即可將保護層14從產品上剝離，操作簡單，方便。於其他實施例中，保護層14亦可以被模切為多條螺旋狀延伸的條形，例如，圖5和圖6中，保護層14包括兩條螺旋狀延伸的條形。即，在後續製程中，如果將保護層14從產品上撕下時，需要分別提起兩條條形的端部(起撕頭142)，從而將保護層14從產品上剝離。 In FIG. 1, the protective layer 14 includes a helically extending strip. That is, in the subsequent process, if the protective layer 14 is to be torn off from the product, it is only necessary to pull up one end of the strip to peel the protective layer 14 from the product, which is simple and convenient to operate. In other embodiments, the protective layer 14 can also be die-cut into a plurality of helically extending strips. For example, in FIG. 5 and FIG. 6 , the protective layer 14 includes two spirally extending strips. That is, in the subsequent process, if the protective layer 14 is to be torn off from the product, it is necessary to lift up the ends of the two strips (tear heads 142 ) respectively, so as to peel the protective layer 14 from the product.

其中，圖5中，保護層14被模切為類似“蚊香”的形狀。圖6中，保護層14被模切為類似“回”字形的形狀。由於保護層14被模切為條形，使得其貼附在產品的表面上，尤其是產品的曲面上時，與曲面的接觸面積變小，故，可以保證平整貼附而不產生褶皺和氣泡。另，由於保護層14的螺旋形設計，使得其在產品上拉拔撕下時，可以順著保護層14的分割線螺旋形撕下，而不會有殘留膜的存在。 Among them, in FIG. 5 , the protective layer 14 is die-cut into a shape similar to a "mosquito coil". In FIG. 6, the protective layer 14 is die-cut into a "back"-like shape. Since the protective layer 14 is die-cut into a strip shape, when it is attached to the surface of the product, especially the curved surface of the product, the contact area with the curved surface becomes smaller, so it can ensure smooth attachment without generating wrinkles and air bubbles . In addition, due to the spiral design of the protective layer 14, when it is pulled off the product, it can be torn off spirally along the dividing line of the protective layer 14 without the existence of residual film.

圖1、圖4、圖5及圖6所示的保護層14中，條形自中心到外圍的寬度基本一致。即，條形的寬度基本不會隨其曲率變化。 In the protective layer 14 shown in FIG. 1 , FIG. 4 , FIG. 5 and FIG. 6 , the widths of the strips from the center to the periphery are basically the same. That is, the width of the bar does not substantially change with its curvature.

圖7為本發明第五實施例的保護層14的平面示意圖。如圖7所示，保護層14包括複數螺旋狀延伸的條形，每一條形包括一個起撕頭142。每一條形的寬度由中心至外圍逐漸增大，即，每一條形的寬度隨其曲率的變小而增大。 FIG. 7 is a schematic plan view of the protective layer 14 according to the fifth embodiment of the present invention. As shown in FIG. 7 , the protective layer 14 includes a plurality of strips extending spirally, and each strip includes a tearing head 142 . The width of each strip increases gradually from the center to the periphery, that is, the width of each strip increases as its curvature decreases.

圖8為本發明第六實施例的保護層14的平面示意圖。如圖8所示，保護層14包括一個螺旋狀延伸的條形，該條形的寬度由中心至外圍逐漸增大，即，該條形的寬度隨其曲率的變小而增大。其中，條形在起撕頭142處的寬度最大，靠近中心處的寬度較小。於另一實施例中，該條形的寬度由中心至外圍逐漸變小，即，該條形的寬度隨其曲率的變小而變小。其中，條形在起撕頭142處的寬度最小，靠近中心處的寬度較大。 FIG. 8 is a schematic plan view of the protective layer 14 according to the sixth embodiment of the present invention. As shown in FIG. 8 , the protective layer 14 includes a strip that extends in a spiral shape, and the width of the strip increases gradually from the center to the periphery, that is, the width of the strip increases as its curvature decreases. Among them, the width of the strip is the largest at the tearing head 142, and the width near the center is smaller. In another embodiment, the width of the bar decreases gradually from the center to the periphery, that is, the width of the bar decreases as the curvature of the bar decreases. Among them, the width of the strip shape is the smallest at the tearing head 142, and the width near the center is larger.

圖9為本發明第七實施例的保護層14的平面示意圖。如圖9所示，保護層14包括兩個螺旋狀延伸的條形，該兩個條形為同心圓螺旋，每一條形的寬度由中心至外圍大致不變，而兩個條形的寬度不同。於另一實施例中，保護層14可包括複數螺旋狀延伸的條形，該複數為同心圓螺旋，且條形的數量不限 於兩個，每一條形的寬度由中心至起撕頭142處大致不變，但各個條形的寬度可以為不同的，亦可以為相同的。 FIG. 9 is a schematic plan view of the protective layer 14 according to the seventh embodiment of the present invention. As shown in FIG. 9 , the protective layer 14 includes two strips extending in a spiral shape, the two strips are concentric spirals, the width of each strip is substantially constant from the center to the periphery, and the widths of the two strips are different . In another embodiment, the protective layer 14 may include a plurality of strips extending in a spiral shape, the plurality of which are concentric spirals, and the number of the strips is not limited. For the two, the width of each strip is substantially unchanged from the center to the tearing head 142, but the width of each strip can be different or the same.

圖10為本發明第八實施例的保護層14的平面示意圖。如圖10所示，保護層14包括兩個螺旋狀延伸的條形，每一條形由中心處擴散開，且每一條形在同一圈的寬度為不斷變化的。圖10中，每一條形在某些圈中，寬度由窄到寬再到窄。 FIG. 10 is a schematic plan view of the protective layer 14 according to the eighth embodiment of the present invention. As shown in FIG. 10 , the protective layer 14 includes two spirally extending strips, each strip is spread out from the center, and the width of each strip is constantly changing in the same circle. In Figure 10, each bar is in certain circles, from narrow to wide to narrow in width.

本發明實施例提供的上述保護膜10可應用於曲面結構20上。如圖11所示，該曲面結構20具有彎曲表面21。圖11中未示出保護層14。當保護膜10應用於曲面結構20上時，需將離型層11去除，使保護層14貼附離型層11的一面，貼附於曲面結構20的彎曲表面21上。由於該保護層14包括呈螺旋狀延伸的條形，一方面，其與曲面的接觸面積較小，故，可以保證平整貼附而不產生褶皺和氣泡。另，由於保護層14的螺旋形設計，使得在後續製程中，若需將該保護層14在曲面結構20上去除時，可以將保護層14順著分割線螺旋形撕下，而不會有殘留膜的存在。 The protective film 10 provided in the embodiment of the present invention can be applied to the curved structure 20 . As shown in FIG. 11 , the curved structure 20 has a curved surface 21 . The protective layer 14 is not shown in FIG. 11 . When the protective film 10 is applied on the curved structure 20 , the release layer 11 needs to be removed, so that the protective layer 14 is attached to one side of the release layer 11 and attached to the curved surface 21 of the curved structure 20 . Since the protective layer 14 includes a strip shape extending in a spiral shape, on the one hand, its contact area with the curved surface is small, so that it can ensure smooth attachment without generating wrinkles and air bubbles. In addition, due to the spiral design of the protective layer 14, in the subsequent process, when the protective layer 14 needs to be removed from the curved structure 20, the protective layer 14 can be torn off spirally along the dividing line without any Presence of residual film.

於一實施例中，該曲面結構20包括一鏡頭，該鏡頭具有該彎曲表面21。由於該保護層14貼附於該曲面結構20上後，不會產生褶皺和氣泡，使得鏡頭可以得到良好的保護，進而避免鏡頭被刮傷或者是防止外界異物，如灰塵或懸浮粒子等進入保護層14和鏡頭之間，而影響鏡頭的光學特性。 In one embodiment, the curved structure 20 includes a lens having the curved surface 21 . Since the protective layer 14 is attached to the curved structure 20, no wrinkles and air bubbles will be generated, so that the lens can be well protected, thereby preventing the lens from being scratched or preventing external foreign objects such as dust or suspended particles from entering the protection. between the layer 14 and the lens, thereby affecting the optical properties of the lens.

於一實施例中，該彎曲表面21亦可以為不規則的曲面。該曲面結構20亦可以為例如，觸控面板中的蓋板玻璃，該蓋板玻璃具有彎曲表面21。當然，該保護膜10亦可以適用於平面結構中，例如，貼附於觸控面板中的平面蓋板玻璃上。 In one embodiment, the curved surface 21 can also be an irregular curved surface. The curved structure 20 can also be, for example, a cover glass in a touch panel, and the cover glass has a curved surface 21 . Of course, the protective film 10 can also be used in a flat structure, for example, attached to a flat cover glass in a touch panel.

如圖12所示，本發明實施例還提供一種保護膜10的貼附方法，其包括以下步驟。 As shown in FIG. 12 , an embodiment of the present invention further provides a method for attaching the protective film 10 , which includes the following steps.

步驟S1：提供上述的保護膜10。 Step S1 : providing the above-mentioned protective film 10 .

步驟S2：使該離型層11與該保護層14相剝離。 Step S2 : peel off the release layer 11 from the protective layer 14 .

步驟S3：將該保護層14與該離型層11相剝離的一面貼附於一待貼合物上。 Step S3: attaching the peeled-off side of the protective layer 14 and the release layer 11 to an object to be attached.

於一實施例中，步驟S1包括提供一組裝治具(圖未示)，該組裝治具上設置有定位柱。將該保護膜10上設置的定位孔15與該定位柱一一對齊，並套設至該定位柱上，以使該保護膜10固定至該組裝治具。 In one embodiment, the step S1 includes providing an assembly jig (not shown), and the assembly jig is provided with a positioning column. The positioning holes 15 provided on the protective film 10 are aligned with the positioning post one by one, and sleeved on the positioning post, so that the protective film 10 is fixed to the assembling jig.

於一實施例中，該離型層11上設置有第一拉拔部和第二拉拔部。將該保護膜10固定於該組裝治具上後，步驟S2中，藉由拉拔該第一拉拔部，使第一離型膜12和保護層14剝離，藉由拉拔第二拉拔部，使第二離型膜13和保護層14剝離。另，第一離型膜12、第二離型膜13和保護層14剝離後，離型層11和保護層14之間的黏合膠會留著保護層14上，而不會被離型層11帶走。 In one embodiment, the release layer 11 is provided with a first drawing part and a second drawing part. After the protective film 10 is fixed on the assembly jig, in step S2, the first release film 12 and the protective layer 14 are peeled off by pulling the first pulling part, and the second pulling part, the second release film 13 and the protective layer 14 are peeled off. In addition, after the first release film 12, the second release film 13 and the protective layer 14 are peeled off, the adhesive between the release layer 11 and the protective layer 14 will remain on the protective layer 14 and will not be affected by the release layer. 11 Take away.

於一實施例中，步驟S3中，還包括採用蘸取酒精的無塵布清理該待貼合物和治具，然後將該待貼合物放置於該治具內的步驟。另，步驟S3中，可採用半自動機台將該保護層14貼合至該待貼合物上。 In one embodiment, step S3 further includes a step of cleaning the object to be attached and the fixture with a clean cloth dipped in alcohol, and then placing the object to be attached in the fixture. In addition, in step S3, a semi-automatic machine can be used to attach the protective layer 14 to the object to be attached.

於一實施例中，該待貼合物為具有彎曲表面21的曲面結構20，該保護層14貼附於該彎曲表面21上。該曲面結構20可包括一鏡頭，該鏡頭具有該彎曲表面21。 In one embodiment, the object to be attached is a curved surface structure 20 having a curved surface 21 , and the protective layer 14 is attached to the curved surface 21 . The curved structure 20 may include a lens having the curved surface 21 .

以上實施方式僅用以說明本發明的技術方案而非限制，儘管參照較佳實施方式對本發明進行了詳細說明，本領域的普通技術人員應當理解，可 以對本發明的技術方案進行修改或等同替換，而不脫離本發明技術方案的精神及範圍。 The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should The technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

10:保護膜 10: Protective film

11:離型層 11: Release layer

12:第一離型膜 12: The first release film

13:第二離型膜 13: The second release film

14:保護層 14: Protective layer

142:起撕頭 142: Tear off the head

15:定位孔 15: Positioning hole

Claims (7)

一種保護膜，其改良在於，包括：一離型層；以及一保護層，貼附於該離型層上；其中，該保護層包括呈螺旋狀延伸的條形；該離型層包括第一離型膜和第二離型膜；該第一離型膜包括第一主體部以及由該第一主體部延伸的第一拉拔頭，該第一拉拔頭未與該保護層貼附，以用於在將該第一離型膜和該保護層剝離時起頭；該第二離型膜包括第二主體部以及由該第二主體部延伸的第二拉拔頭，該第二拉拔頭未與該保護層貼附，以用於在將該第二離型膜和該保護層剝離時起頭；該保護層的一部分貼附於該第一主體部上，另一部分貼附於該第二主體部上；沿該保護膜的厚度方向上，該第一主體部的投影和該第二主體部的投影不重疊，且該第一主體部的投影和該第二主體部的投影完全覆蓋該保護層；該第一拉拔頭自該第一主體部的中部延伸朝向該第二離型膜延伸，該第二拉拔頭自該第二主體部的中部朝向該第一離型膜延伸；沿該保護膜的厚度方向上，該第一拉拔頭的投影落入該第二主體部上，該第二拉拔頭的投影落入該第一主體部上，該第一拉拔頭的投影和該第二拉拔頭的投影不重疊；該保護層包括一個自中心到外圍延伸的該條形，該條形的寬度由中心至外圍逐漸增大；或者，該保護層包括兩個自中心到外圍延伸的該條形，該保護層為蚊香的形狀或回字形的形狀，每個該條形自中心到外圍的寬度一致；或者，該保護層包括兩個自中心到外圍延伸的該條形，每個該條形由中心處擴散開，且每個該條形在同一圈的寬度為不斷變化的；或者，該保護層包括複數自中心 到外圍延伸的該條形，該複數條形為同心圓螺旋，每個該條形的寬度由中心至外圍不變。 A protective film, which is improved by comprising: a release layer; and a protective layer attached to the release layer; wherein, the protective layer comprises a strip extending in a spiral shape; the release layer comprises a first a release film and a second release film; the first release film includes a first main body part and a first pulling head extending from the first main body part, the first pulling head is not attached to the protective layer, for starting when the first release film and the protective layer are peeled off; the second release film includes a second main body part and a second drawing head extending from the second main body part, the second drawing The head is not attached to the protective layer, so as to start when the second release film and the protective layer are peeled off; a part of the protective layer is attached to the first main body part, and the other part is attached to the first body part. two main body parts; along the thickness direction of the protective film, the projection of the first main body part and the projection of the second main body part do not overlap, and the projection of the first main body part and the projection of the second main body part completely cover the protective layer; the first pulling head extends from the middle of the first main body portion toward the second release film, and the second pulling head extends from the middle of the second main body portion toward the first release film along the thickness direction of the protective film, the projection of the first drawing head falls on the second main body part, the projection of the second drawing head falls on the first main body part, the first drawing head The projection of the second drawing head does not overlap with the projection of the second drawing head; the protective layer includes a bar extending from the center to the periphery, and the width of the bar increases gradually from the center to the periphery; or the protective layer includes two The strip extending from the center to the periphery, the protective layer is in the shape of a mosquito coil or a zigzag shape, and each strip has the same width from the center to the periphery; or, the protective layer includes two extending from the center to the periphery The strips, each strip is spread out from the center, and the width of each strip in the same circle is constantly changing; or, the protective layer includes a plurality of self-centering The strips extending to the periphery, the plurality of strips are concentric spirals, and the width of each strip is unchanged from the center to the periphery. 如請求項1所述的保護膜，其中，該離型層未被該保護層覆蓋的區域設置有用於與組裝治具上的定位柱相配合的定位孔。 The protective film according to claim 1, wherein a region of the release layer not covered by the protective layer is provided with positioning holes for matching with the positioning posts on the assembly jig. 一種曲面結構，其具有彎曲表面，其中，該彎曲表面上貼附有一保護層，該保護層包括呈螺旋狀延伸的條形；該保護層包括一個自中心到外圍延伸的該條形，該條形的寬度由中心至外圍逐漸增大；或者，該保護層包括兩個自中心到外圍延伸的該條形，該保護層為蚊香的形狀或回字形的形狀，每個該條形自中心到外圍的寬度一致；或者，該保護層包括兩個自中心到外圍延伸的該條形，每個該條形由中心處擴散開，且每個該條形在同一圈的寬度為不斷變化的；或者，該保護層包括複數自中心到外圍延伸的該條形，該複數條形為同心圓螺旋，每個該條形的寬度由中心至外圍不變。 A curved surface structure with a curved surface, wherein a protective layer is attached to the curved surface, the protective layer comprises a strip extending in a spiral shape; the protective layer comprises a strip extending from the center to the periphery, the strip The width of the shape gradually increases from the center to the periphery; or, the protective layer includes two strips extending from the center to the periphery, and the protective layer is in the shape of a mosquito coil or a zigzag shape, and each of the strips extends from the center to the periphery. The width of the periphery is the same; or, the protective layer includes two strips extending from the center to the periphery, each strip spreads out from the center, and the width of each strip in the same circle is constantly changing; Alternatively, the protective layer includes a plurality of strips extending from the center to the periphery, the strips are concentric spirals, and the width of each strip is unchanged from the center to the periphery. 如請求項3所述的曲面結構，其中，該曲面結構包括一鏡頭，該鏡頭具有該彎曲表面。 The curved structure of claim 3, wherein the curved structure comprises a lens, and the lens has the curved surface. 一種保護膜貼附方法，其中，包括：提供如請求項1或2所述的保護膜；使該離型層與該保護層相剝離；以及將該保護層與該離型層相剝離的一面貼附於一待貼合物上。 A protective film attaching method, comprising: providing the protective film as described in claim 1 or 2; peeling off the release layer from the protective layer; and peeling off the protective layer from the release layer Attached to an object to be attached. 如請求項5所述的保護膜貼附方法，其中，該待貼合物為具有彎曲表面的曲面結構，該保護層貼附於該彎曲表面上。 The protective film attaching method according to claim 5, wherein the object to be attached is a curved surface structure having a curved surface, and the protective layer is attached on the curved surface. 如請求項6所述的保護膜貼附方法，其中，該曲面結構包括一鏡頭，該鏡頭具有該彎曲表面。 The protective film attaching method according to claim 6, wherein the curved structure includes a lens, and the lens has the curved surface.
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