WO2018188286A1 - 易撕贴以及保护膜组件 - Google Patents

易撕贴以及保护膜组件 Download PDF

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Publication number
WO2018188286A1
WO2018188286A1 PCT/CN2017/104813 CN2017104813W WO2018188286A1 WO 2018188286 A1 WO2018188286 A1 WO 2018188286A1 CN 2017104813 W CN2017104813 W CN 2017104813W WO 2018188286 A1 WO2018188286 A1 WO 2018188286A1
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WO
WIPO (PCT)
Prior art keywords
tear
protective film
adhesive layer
angled
tearing
Prior art date
Application number
PCT/CN2017/104813
Other languages
English (en)
French (fr)
Inventor
王连韬
宁培桓
魏广超
黄晶
王胜男
潘成龙
陈光林
Original Assignee
京东方科技集团股份有限公司
合肥鑫晟光电科技有限公司
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 京东方科技集团股份有限公司, 合肥鑫晟光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/765,389 priority Critical patent/US10508223B2/en
Priority to EP17849860.6A priority patent/EP3611238A4/en
Publication of WO2018188286A1 publication Critical patent/WO2018188286A1/zh

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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
    • 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
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/08—Fastening or securing by means not forming part of the material of the label itself
    • G09F3/10—Fastening or securing by means not forming part of the material of the label itself by an adhesive layer
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B32B7/14—Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
    • 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
    • C09J2203/334—Applications of adhesives in processes or use of adhesives in the form of films or foils as a label
    • 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/20—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive itself
    • C09J2301/204—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive itself the adhesive coating being discontinuous
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/14—Layer or component removable to expose adhesive
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer

Definitions

  • Embodiments of the present disclosure are directed to a tear-off sticker and a protective film assembly.
  • At least one embodiment of the present disclosure provides an easy-to-tear sticker comprising: a body layer and a first adhesive layer, the body layer comprising an attachment portion and a tearing portion, the first adhesive layer being disposed on the attachment portion .
  • the attaching portion includes a first attaching area and a second attaching area, the first attaching area is a right triangle, and the second attaching area is a strip shape; the tearing part passes through the first right angle side of the right triangle and the attaching part Connected, and the tear hand is configured to be bent toward the attachment portion along the first right angle to cover the surface of the attachment portion facing away from the first adhesive layer.
  • the strip extends in the same direction as the angle bisector of the right angle of the right triangle.
  • the right-angled triangle is an isosceles right-angled triangle, and the center line of the extending direction of the strip coincides with the vertical bisector of the oblique side of the right-angled triangle.
  • the tearing hand portion includes a first tearing hand region connected to the first right-angled side of the right-angled triangle, and the tearing portion covers the attaching portion away from the first adhesive layer.
  • the edge of the first tear region does not exceed the second right angle of the right triangle.
  • the first tear region and the first attachment region are opposite to each other. Symmetrical at the first right angle.
  • the tearing hand portion further includes a second tearing hand region, in a state where the tearing hand portion covers the surface of the attaching portion facing away from the first adhesive layer, and second The tear area is at least partially covered on the second attachment area.
  • the second tear region and the second attachment region are symmetrical with respect to the first right angle side.
  • the tear-off sticker provided by the embodiment of the present disclosure further includes: a second adhesive layer.
  • the second adhesive layer is disposed on at least one of the tearing portion and the attaching portion, and the first adhesive layer and the second adhesive layer are respectively disposed on the two surfaces of the main body layer opposite to each other in the unfolded state.
  • the second adhesive layer is located at the hand tearing portion and the attaching portion in a state where the hand tearing portion covers the surface of the attaching portion facing away from the first adhesive layer. between.
  • the second adhesive layer covers only a portion of the tear portion and/or the attachment portion near the first right-angled side.
  • the second adhesive layer covers a portion of the second attachment region near the first right-angled edge.
  • the adhesion of the first adhesive layer is greater than the adhesion of the second adhesive layer.
  • At least one embodiment of the present disclosure provides a protective film assembly comprising: a tear-off sticker provided by any embodiment of the present disclosure, and a protective film.
  • the protective film includes a right-angled area; the easy-to-tear paste is adhered to the right-angled area, and the two right-angled sides of the right-angled triangle are flush with the edges of the two right-angled sides of the right-angled area.
  • the strip extends in the same direction as the angle bisector of the right angle of the right triangle.
  • the strip extends in the same direction as the diagonal direction of the protective film.
  • the attaching portion is adhered to the inner side of the edge of the protective film.
  • the tearing hand portion is located inside the edge of the protective film in a state where the tearing portion covers the surface of the attaching portion facing away from the first adhesive layer.
  • At least one embodiment of the present disclosure provides an easy-to-tear sticker and a protective film assembly that can be attached to a right-angled area of a protective film.
  • the force-receiving position of the protective film can extend from a right-angled apex thereof.
  • the direction of the protective film can extend substantially along the direction of the bisector of its right angle, thereby The direction and position of the protective film are more scientific and effective, and the success rate of the protective film being peeled off is improved, and the working efficiency is improved.
  • Figure 1a is a schematic plan view of a tear-off patch
  • Figure 1b is a schematic cross-sectional view of the easy tearing strip along the line W-W' in Figure 1a;
  • FIG. 2a is a schematic plan view showing the structure of a tear-off protective film
  • Figure 2b is a schematic cross-sectional view of the tear-off protective film along the line A-A' of Figure 2a;
  • 2c is a schematic plan view showing another easy-to-peel protective film
  • Figure 2d is a schematic cross-sectional view of the tear-resistant protective film along the line BB' of Figure 2c;
  • FIG. 3 is a schematic diagram of a planar structure of an easy-to-tear sticker according to an embodiment of the present disclosure
  • Figure 3b is a schematic cross-sectional view showing the tearable patch shown in Figure 3a;
  • FIG. 4a is a schematic plan view showing a protective film assembly according to an embodiment of the present disclosure.
  • Figure 4b is a schematic cross-sectional view of the protective film assembly taken along line C-C' of Figure 4a;
  • FIG. 5 is a flowchart of a method for operating a peeling protective film according to an embodiment of the present disclosure
  • 6a to 6c are process flow diagrams of a method of operating a peeling protective film according to an embodiment of the present disclosure.
  • FIG. 1a is a schematic view of a planar structure of a tear-off patch
  • FIG. 1b is a schematic cross-sectional view of the easy-to-tear strip along the line W-W' of FIG. 1a.
  • the tear-off sticker 7 is a rectangular structure including a substrate 71, an adhesive 70, and a release film 72.
  • the easy-to-tear strip 7 is divided into a patching area T2 and a tearing hand area T1, and the adhesive 70 is disposed on the attaching area T2, and the release film 72 is disposed on the adhesive 70 and aligned with the edge of the adhesive 70, the release film 72 can protect the adhesive 70 from contamination.
  • FIG. 2a is a schematic plan view of a tear-resistant protective film
  • FIG. 2b is a schematic cross-sectional view of the easy-to-peel protective film along the line AA' of FIG. 2a
  • FIG. 2c is a plan view of another easy-to-peel protective film
  • Figure 2d is a schematic cross-sectional view of the tear-resistant protective film taken along line BB' of Figure 2c.
  • the tear-off protective film may include a tear-off sticker 7 and a protective film 8, which may be attached to the protective film 8 by the adhesive 70.
  • the protective film 8 When the protective film 8 is peeled off, the user holds the tearing hand region T1, and applies a force to the protective film 8 from the boundary between the tearing region T1 and the attaching region T2, thereby peeling off the protective film 8.
  • the easy-to-tear sticker 7 can be attached to the protective film 8 by two attachment means.
  • Figures 2a and 2b show the first attachment method.
  • the first attachment method is attached to the edge of the protective film 8 by the attachment region T2 of the easy-to-tear sticker 7.
  • the force point of the protective film 8 is located in the tear region T1 and the attachment region T2.
  • the second attachment method is that the attachment area T2 of the easy-to-peel sticker 7 is attached to the middle of the film surface of the protective film 8, and the tearing area T1 is located at the edge of the protective film 8, and when the protective film 8 is peeled off, the attachment area T2 is There is a gap at the edge of the protective film 8, and therefore, the second attachment method is also disadvantageous in that the protective film 8 is peeled off from the edge, and the protective film 8 cannot be effectively peeled off.
  • At least one embodiment of the present disclosure provides an easy-to-tear sticker comprising: a body layer and a first adhesive
  • the layer includes a patching portion and a tearing portion, and the first adhesive layer is disposed on the attaching portion.
  • the attaching portion includes a first attaching area and a second attaching area, the first attaching area is a right triangle, and the second attaching area is a strip shape; the tearing part passes through the first right angle side of the right triangle and the attaching part Connected, and the tear hand is configured to be bent toward the attachment portion along the first right angle to cover the surface of the attachment portion facing away from the first adhesive layer.
  • At least one embodiment of the present disclosure further provides a protective film assembly comprising: a tear-off sticker provided by any embodiment of the present disclosure, and a protective film.
  • the protective film includes a right-angled area; the easy-to-tear paste is adhered to the right-angled area, and the two right-angled sides of the right-angled triangle of the first attachment area are flush with the edges of the two right-angled sides of the right-angled area.
  • the easy-to-tear sticker provided by the embodiment of the present disclosure can be adhered to the right-angled area of the protective film.
  • the force-receiving position of the protective film can extend from the right-angled apex to the two right-angled sides, and the direction of the protective film can be approximated.
  • the direction of the bisector of the corner along the right angle makes the direction and position of the protective film more scientific and effective, improves the success rate of the peeling of the protective film, and improves work efficiency.
  • the “expanded state” refers to a state in which the tearing portion is not adhered to the attaching portion; the “folded state” refers to the tearing of the hand covering portion away from the first adhesive in the attached portion
  • the state on the surface of the adhesive layer may be a state in which the tear portion is adhered to the surface of the attached portion facing away from the first adhesive layer by the second adhesive layer.
  • the same direction means that the two extending directions are substantially the same.
  • the two directions are completely parallel; or the two directions are approximately parallel.
  • FIG. 3a is a schematic view showing the planar structure of an easy-to-tear sticker provided by an embodiment of the present disclosure
  • FIG. 3b is a schematic cross-sectional structural view of the easy-to-tear sticker shown in FIG. 3a.
  • the tear-off patch 100 includes a body layer 10 and a first adhesive layer 11.
  • the main body layer 10 includes an attaching portion R1 and a tearing portion R2, and the first adhesive layer 11 is disposed on the attaching portion R1.
  • the attaching portion R1 includes a first attaching area R11 and a second attaching area R12, the first attaching area R11 is a right-angled triangle, and the second attaching area R12 is a strip shape, and the extending direction of the strip shape can be, for example, a right-angled triangle The right angle bisector extends in the same direction.
  • the tearing portion R2 is connected to the attaching portion R1 through the first right-angled side 101 of the right-angled triangle, and the tearing portion R2 is configured to be bendable along the first right-angled side 101 toward the attaching portion R1 to cover the attaching portion.
  • R1 faces away from the surface of the first adhesive layer 11.
  • Figures 3a and 3b are schematic views of the tear-off patch 100 in an unfolded state. In the folded state, for example, the tearing portion R2 can be bent to the left along the first right-angled edge 101 in FIG. 3a and covered in the attachment portion R1 facing away from the first adhesive layer 11. On the surface.
  • the first attachment area of the easy-to-tear sticker provided by the embodiment of the present disclosure may be adhered to the right-angled area of the protective film and flush with the edge of the two right-angled sides of the right-angled area, and the force-receiving position of the protective film when the protective film is peeled off It can extend from its right-angled apex to two right-angled edges, and the direction of the force of the protective film can extend along the direction of the bisector of the right angle, so that the direction, position, and the like of the protective film are more scientific and effective; the second attachment area
  • the adhesion area can be increased to increase the adhesion between the easy-to-tear paste and the protective film, and when the protective film is peeled off, the easy-to-tear sticker is prevented from being detached from the protective film, and the success rate of the protective film being peeled off is improved.
  • the tear-off sticker 100 provided by the embodiment of the present disclosure can be applied to various types of protective films.
  • the protective film may be a functional protective film or a non-functional protective film.
  • the functional protective film may include an anti-reflection protective film, an anti-reflective protective film, a peep protection film, a high-definition scratch-resistant protective film, and the like, which are not limited in the embodiment of the present disclosure.
  • an antireflection layer may be formed on the protective film, and the antireflection layer may be a multilayer film composed of a high refractive index layer and a low refractive index layer, so that the protective film may have an antireflection function.
  • the material of the main body layer 10 may be a polyethylene terephthalate (PET) substrate, a polyethylene (PE) substrate, or a polyvinyl chloride (PVC) substrate or the like.
  • PET polyethylene terephthalate
  • PE polyethylene
  • PVC polyvinyl chloride
  • first right angled edge 101 and the second right angled edge 102 of the right triangle are perpendicular to each other, and the vertical direction includes strictly vertical, or approximately vertical.
  • the right angle of the right triangle may be, for example, a rounded right angle, so that the easy tearing 100 can be applied to the peeling of the rounded protective film.
  • the right triangle may be an isosceles right triangle
  • the strip may be a rectangle
  • the center line of the strip extending direction coincides with the vertical bisector of the hypotenuse 103 of the right triangle, that is, the center of the strip extending direction
  • the line coincides with the angle bisector of the right angle of the right triangle, so that the shape of the attaching portion R1 is a symmetrical pentagon, and the symmetrical structure can make the direction of the force of the protective film more uniform when the protective film is peeled off.
  • “coincident” means substantially coincident or strictly coincident.
  • the two side edges of the second attaching area R12 that are opposite to each other in a direction perpendicular to the extending direction may be a straight line, an arc shape, a polygonal line shape, or other regular or irregular shapes, so that the second attaching area R12
  • the shape may be a polygon, a semi-ellipse or an arc, etc., and the polygon may include a quadrangle (for example, a rectangle, a trapezoid) or the like.
  • the first adhesive layer 11 may completely cover one surface of the attaching portion R1, so that the attaching portion R1 can be completely adhered to the protective film, and the attached portion R1 is prevented from being deformed by folding, lifting, or the like.
  • the material of the first adhesive layer 11 may be an organic adhesive, and the organic adhesive may, for example, be packaged. Including natural polymer, silicone, epoxy, polyurethane, polyester fiber, polypropylene resin, polyethylene resin or acrylic resin.
  • the material of the first adhesive layer 11 may further include an inorganic adhesive, and the inorganic adhesive may include, for example, water glass, a phosphate adhesive, a silicate adhesive, a sulfate adhesive, or a borate adhesive.
  • the tear portion R2 may include a first tear region R21 connected to the first right angle side 101 of the right triangle, and the tear portion R2 covers the attachment portion R1 away from the first adhesive layer 11 In the state on the surface, the edge of the first tear region R21 does not exceed the second right angle edge 102 of the right triangle.
  • the first tear-hand region R21 of the tear-off portion R2 completely falls into the region of the first attachment region R11 of the attaching portion R1.
  • the first tear region R21 and the first attachment region R11 may be symmetrical with respect to the first right angle side 101, such that the shape of the first tear region R21 is the same as the first attachment region R11, that is, the first tear region R21 Also in the right triangle, the first tear region R21 and the first attachment region R11 are completely overlapped in a state where the tear portion R2 covers the surface of the attaching portion R1 facing away from the first adhesive layer 11.
  • the shape of the first tear region R21 may also be different from the first attachment region R11.
  • the shape of the first tear region R21 may also be an acute triangle, a rectangle, or the like.
  • the tearing portion R2 may further include a second tearing region R22, and in a state where the tearing portion R2 covers the surface of the attaching portion R1 facing away from the first adhesive layer 11, the second tearing region R22 may be at least partially Covered on the second attachment area R12.
  • the operator can hold the second tearing region R22 to conveniently control the direction and position of the protective film.
  • the second tear region R22 and the second attachment region R12 may also be symmetrical with respect to the first right angle side 101 such that the shape of the second tear region R22 is the same as the second attachment region R12.
  • the shape of the second tear region R22 and the second attachment region R12 may also be different.
  • the second tear region R22 may have a T-shape, and a cross-sectional area of a side away from the first tear region R21 is larger than a cross-sectional area near a side of the first tear region R21, thereby increasing an operator's grip.
  • the area of the easy-to-tear sticker 100 is convenient for the operator to hold the easy-to-tear sticker 100, thereby improving the efficiency of the tear film.
  • first tear region R21 and the first attachment region R11 are symmetrical with respect to the first right angle side 101
  • second tear region R22 and the second attachment region R12 are also symmetrical with respect to the first right angle side 101, thereby attaching
  • the portion R1 and the tearing portion R2 are symmetrical with respect to the first right-angled side 101, that is, the tearing portion R2 can be bent toward the attaching portion R1 along the first right-angled side 101 to completely overlap the attached portion R1.
  • the color of the tearing portion R2 and the attaching portion R1 may be the same or different.
  • the attaching portion R1 may be colorless and transparent, and the tearing portion R2 may be red, thereby improving the identification of the tearing portion R2. Degree, so that the operator quickly and accurately find the hand R2, improve work efficiency.
  • the color of the attaching portion R1 and the tearing portion R2 may be specifically set according to actual conditions, and the embodiment of the present disclosure does not limit this.
  • the tear-off sticker 100 further includes a second adhesive layer 12.
  • the second adhesive layer 12 may be disposed on at least one of the tear portion R2 and the attaching portion R1.
  • the first adhesive layer 11 and the second adhesive layer 12 are disposed on both surfaces of the body layer 10 opposed to each other.
  • the second adhesive layer 12 may be located between the tearing portion R2 and the attaching portion R1, and the second adhesive layer 12 may have the tearing portion R2. It is fixed to the attaching portion R1 to prevent the hand tear portion R2 from being deformed such as lifting or bending.
  • the second adhesive layer 12 covers only the portion of the first straight side 101 that is adjacent to the tear portion R2 and/or the attachment portion R1.
  • the tearing portion R2 can leave a portion not fixed by the second adhesive layer 12, thereby facilitating the operator to hold the uncovered portion.
  • a portion of the second adhesive layer 12 is fixed to separate the tear portion R2 and the attaching portion R1.
  • the second adhesive layer 12 may cover the second tear region R22 and/or the second attachment region R12 near a portion of the first right angled edge 101. As shown in FIG. 3a, the second adhesive layer 12 may be disposed on a side of the second tear region R22 adjacent to the first tear region R21.
  • a portion of the second tearing region R22 away from the first tearing region R21 is not fixed to the attaching portion R1 through the second adhesive layer 22, so that the operator can hold the second tearing
  • the hand region R22 is away from a portion of the first tear region R21 to separate the tear portion R2 and the attachment portion R1.
  • the adhesion of the first adhesive layer 11 is greater than the adhesion of the second adhesive layer 12.
  • the tearing portion R2 is adhered to the attaching portion R1 through the second adhesive layer 12, and the easy-to-tear sticker 100 is attached to the protective film through the first adhesive layer 11, thereby separating the tearing portion R2 and the attaching portion R1.
  • the easy-to-peel sticker 100 can be firmly adhered to the protective film.
  • the material of the second adhesive layer 12 may be the same as or different from the first adhesive layer 11.
  • the parameters of the material can be controlled to ensure that the adhesion of the first adhesive layer 11 is greater than the adhesion of the second adhesive layer 12.
  • the parameters of the material may include, for example, the polarity of the molecular surface, the degree of polymerization of the molecule, the crystallinity of the molecule, or a filler.
  • the surface of the polyethylene resin of the first adhesive layer 11 may be subjected to plasma treatment to produce polar groups on the surface thereof. (e.g., a hydroxyl group, a carbonyl group, a carboxyl group, etc.), thereby improving the bonding strength of the polyethylene resin, and further improving the adhesion of the first adhesive layer 11.
  • the tear-off sticker 100 further includes a release film 13.
  • the release film 13 can completely cover the first adhesive layer 11 and be flush with the edge of the first adhesive layer 11, thereby isolating and protecting the first adhesive layer 11 and preventing the first adhesive layer 11 from being contaminated by foreign matter. Loss of adhesion.
  • the release film 13 may be a PE release film or the like, and the release film 13 may be provided with a different color (for example, yellow or the like).
  • the easy-to-tear sticker 100 is attached, the operator can quickly and accurately find the position of the first adhesive layer 11 and improve work efficiency.
  • the release film 13 may also be disposed on the second adhesive layer 12 to isolate and protect the second adhesive layer 12 from contamination of the second adhesive layer 12.
  • the easy-to-peel sticker 100 may be in an unfolded state or a folded state.
  • the second adhesive layer 12 may be disposed on the tearing portion R2 and the attaching portion R1. In between, the tearing portion R2 is fixed to the attaching portion R1, and therefore, it is not necessary to provide the release film 13 on the second adhesive layer 12.
  • a release film 13 is required on the second adhesive layer 12 to protect the second adhesive layer 12.
  • the embodiment of the present disclosure further provides a protective film assembly, which is simple in structure, convenient in operation, and easy to tear off.
  • 4a is a schematic view showing the planar structure of a protective film assembly provided by an embodiment of the present disclosure
  • FIG. 4b is a schematic cross-sectional view showing the protective film assembly along the line C-C' of FIG. 4a.
  • the protective film assembly includes the tear-off sticker 100 provided in the above embodiment, and the protective film 200.
  • the protective film 200 includes a right-angled area; the easy-to-tear sticker 100 is adhered in the right-angled area, and the two right-angled sides of the right-angled triangle are flush with the edges of the two right-angled sides of the right-angled area of the protective film 200.
  • the strip shape of the easy tear strip 100 extends in the same direction as the angle bisector of the right angle of the right triangle.
  • the shape of the protective film 200 may be a rectangle, a sector or a chevron or the like.
  • the angle bisector of the right angle of the right angle region of the protective film 200 may extend in the same direction as the angle bisector of the right angle of the right triangle of the tear-off patch 100, so that the second attachment region of the easy-to-peel sticker 100 may be along The direction in which the angle bisector of the right angle of the right angle region of the protective film 200 extends is attached.
  • the direction of the force of the protective film 200 may extend from the right angle apex of the right angle region to the two right angle sides, and the direction of the force of the protective film may be substantially along the direction of the right angle bisector of the right angle region, the protective film
  • the two right-angled sides of the right-angled area can be more evenly and balanced, and the force direction and position are more favorable for peeling off the protective film, improving the success rate of the protective film being peeled off, and improving work efficiency.
  • the material of the protective film 200 may be polypropylene (PP), polyvinyl chloride (PVC), polyethylene (PE), polyester (PET), o-phenylphenol (OPP) or optical adhesive (OCA).
  • PP polypropylene
  • PVC polyvinyl chloride
  • PE polyethylene
  • PET polyester
  • OPP o-phenylphenol
  • OCA optical adhesive
  • the protective film 200 can be prepared by a method such as a blow molding method, a casting method, or a calendering method.
  • the protective film 200 includes a third adhesive layer.
  • the protective film 200 may be attached to the panel through a third adhesive layer to protect the panel.
  • the adhesion of the first adhesive layer 11 needs to be greater than the adhesion of the third adhesive layer, so that when the protective film 200 is peeled off, the easy-to-tear sticker 100 can be firmly adhered to the protective film 200 to prevent easy tearing.
  • the sticker 100 is detached from the protective film 200, and the success rate of the protective film 200 being peeled off is improved.
  • the attaching portion is adhered to the inner side of the edge of the protective film 200.
  • the tearing portion may be located inside the edge of the protective film 200, so that the easy-to-tear sticker 100 does not affect the protective film. 200 peripheral processing.
  • the tearing portion may be adhered to the surface of the attaching portion facing away from the first adhesive layer 11 by the second adhesive layer 12, thereby preventing deformation of the tearing portion, such as lifting, bending, and the like.
  • different functions are required for different regions on the surface of the product, so different types of protective films are needed to protect the different regions in stages.
  • a letter type protective film or the like can be used.
  • the back-type protective film may include an inner ring protective film and an outer ring protective film surrounding the inner ring protective film, and the outer ring protective film and the inner ring protective film are disposed apart from each other, and the protection in the protective film assembly provided by the embodiment of the present disclosure
  • the film 200 may be an inner ring protective film.
  • the attaching portion and the tearing portion of the easy-to-tear sticker 100 may be located inside the edge of the inner ring protective film, and the tearing portion thereof may be adhered to the attached by the second adhesive layer 12.
  • the easy tearing 100 can not affect the peeling of the outer protective film;
  • the easy-to-peel sticker 100 may not affect the process operation.
  • the protective film component may be a plastic protective film, an electronic product protective film or an automobile protective film.
  • Electronic products can include televisions, digital cameras, mobile phones, watches, tablets, laptops, navigators, and the like.
  • Embodiments of the present disclosure also provide a protective film assembly.
  • the protective film assembly includes: a protective film and a tear-off sticker.
  • the protective film includes a right angle area.
  • the easy-to-tear sticker includes a main body layer and a first adhesive layer, the main body layer includes an attaching portion and a tearing portion, the first adhesive layer is disposed on the attaching portion, and the attaching portion includes the first attaching region and the second sticker
  • the first attachment area is a right-angled triangle
  • the second attachment area is a strip shape
  • the tearing hand is connected to the attachment portion through the first right-angled side of the right-angled triangle, and is configured to be attached along the first right-angle side
  • the attachment portion is bent to cover the surface of the attachment portion facing away from the first adhesive layer.
  • the easy-to-tear patch is attached to the right-angled area, and the two right-angled sides of the right-angled triangle are flush with the edges of the two right-angled sides of the right-angled area of the protective film.
  • the extending direction of the strip of the easy-to-tear strip and the extension of the diagonal of the protective film The same direction; or, the extending direction of the strip is the same as the direction in which the angle bisector of the right angle of the right angle region of the protective film extends.
  • the extending direction of the strip of the easily tearable strip may be the same as the extending direction of the diagonal of the protective film.
  • the strip shape of the easy-to-tear strip may extend in the same direction as the diagonal direction of the protective film, so that the second attaching region of the easily peelable strip may be along the diagonal of the protective film. Attached in the extension direction. When the protective film is peeled off, the direction of the force of the protective film may be along its diagonal direction.
  • the extending direction of the diagonal of the protective film or the extending direction of the angle bisector of the right angle of the right angle region may be different from the extending direction of the angle bisector of the right angle of the right triangle.
  • the angle bisector of the right angle of the right angle region of the protective film extends in the same direction as the angle bisector of the right angle of the right triangle, and the diagonal direction of the protective film extends perpendicularly to the oblique side of the hypotenuse of the right triangle.
  • the extension direction is the same.
  • the “diagonal line” may be a straight line extending from a right-angled vertex of the right-angled area to a midpoint of the arc corresponding to the right-angled area; “diagonal” It may also be a diagonal of a rectangle defined by the two right-angled sides of the right-angled area.
  • the type of the protective film, the manufacturing method, and the relationship between the protective film and the easy-to-tear paste can be referred to the related description in the embodiment of the protective film assembly.
  • FIG. 5 is a flow chart showing a method of operating a peeling protective film provided by an embodiment of the present disclosure
  • FIGS. 6a to 6c are process flow diagrams showing a method of operating a peeling protective film provided by the implementation of the present disclosure.
  • the operation method of the embodiment of the present disclosure includes the following steps:
  • the protective film assembly may be disposed on the panel 300.
  • the easy-to-tear sticker 100 is attached to the right-angled area of the protective film 200, and the tearing portion of the easy-to-peel sticker 100 is adhered to the attaching portion through the second adhesive layer, for example, the tearing hand portion and the attaching portion may be mirror-symmetrical. Thereby the tearing hand portion and the attaching portion completely overlap.
  • the tear-off patch 100 may be attached to the protective film 200 along the extending direction of the diagonal of the protective film 200 or the extending direction of the angle bisector of the right angle of the right-angled region.
  • the panel 300 may be a metal panel or a non-metal panel.
  • the non-metal panel may be, for example, a glass panel, a quartz panel, a ceramic panel, a plastic panel, or a silicone panel.
  • the panel may be a panel formed with a functional component, such as a liquid crystal display panel.
  • the organic light emitting diode display panel or the like; the metal panel may be, for example, an electrogalvanized steel sheet, a hot dip galvanized steel sheet, an galvanized steel sheet or a copper plate.
  • the gripping hand pulls the tearing hand in a first direction to separate the tearing hand and the applicator.
  • the gripping hand portion pulls the tearing hand portion in the second direction, so that the tearing hand portion applies a force to the protective film 200 from the right-angled vertex of the protective film 200, and the force receiving position of the protective film 200 is from a right angle.
  • the apex extends to the two right angle sides to peel the protective film 200 from the panel 300.
  • the second direction may be the extending direction of the diagonal of the protective film 200, and the second direction may also be the extending direction of the angle bisector of the right angle of the right angle region of the protective film 200.
  • the tear-off sticker 100 in the protective film assembly and the protective film 200 are integrated.
  • the operation method may further include attaching the easy-to-tear sticker.
  • the easy-to-peel sticker 100 when the easy-to-peel sticker 100 is in a folded state, firstly, the release film on the first adhesive layer is peeled off, and the two right-angled sides of the right-angled triangle are aligned with the edges of the two right-angle sides of the right-angled area of the protective film 200, and then The attaching portion is attached to the right-angled area to form the protective film assembly; for example, when the easy-to-tear sticker 100 is in the unfolded state, the release film on the first adhesive layer is first peeled off, and the two right-angled sides of the right-angled triangle are Aligning with the edges of the two right-angled sides of the right-angled area of the protective film 200, and then attaching the attaching portion to the right-angled area; then peeling off the release film on the second adhesive layer, and cutting the hand-drawn portion along the first right-angled side
  • the attachment portion is bent to cover the attachment portion, and finally the tear portion and the attachment portion are adhered together by the second adhesive layer

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Abstract

一种易撕贴和保护膜组件。该易撕贴(100)包括：主体层(10)和第一粘胶层(11)，主体层(10)包括贴附部(R1)和撕手部(R2)，第一粘胶层(11)设置在贴附部(R1)上，贴附部(R1)包括第一贴附区(R11)和第二贴附区(R12)，第一贴附区(R11)为直角三角形，第二贴附区(R12)为条形；撕手部(R2)通过直角三角形的第一直角边(101)与贴附部(R1)相连接，且被配置为沿第一直角边(101)向贴附部(R1)弯折以覆盖在贴附部(R1)背离第一粘胶层(11)的表面上。该易撕贴(100)可贴附在保护膜(200)的直角区，在剥离保护膜(200)时，保护膜(200)的受力位置可从其直角顶点延伸至两直角边，保护膜(200)的受力方向可大致沿其直角的角平分线的延伸方向，使保护膜(200)的受力方向、位置等更加科学有效，提高保护膜(200)被剥离的成功率。

Description

易撕贴以及保护膜组件
本申请要求于2017年04月14日递交的中国专利申请第201720390211.X号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。
技术领域
本公开的实施例涉及一种易撕贴以及保护膜组件。
背景技术
随着科学技术的不断发展，电子设备在日常生活中的应用日渐广泛。在电子设备的制造或出货过程中，为防止屏幕表面被污染或划伤等，需要在电子设备的屏幕上设置一层保护膜。当需要将保护膜从屏幕上分离时，需要采用易撕贴将保护膜撕除。易撕贴一般采用矩形结构设计。然而，当保护膜采用回字形设计时，矩形结构的易撕贴无法有效剥离回字形保护膜的内圈保护膜，甚至出现剥离失败的现象，导致产品性能下降或者产生废品。
发明内容
本公开至少一实施例提供一种易撕贴，该易撕贴包括：主体层和第一粘胶层，主体层包括贴附部和撕手部，第一粘胶层设置在贴附部上。贴附部包括第一贴附区和第二贴附区，第一贴附区为直角三角形，第二贴附区为条形；撕手部通过直角三角形的第一直角边与贴附部相连接，且该撕手部被配置为沿第一直角边向贴附部弯折以覆盖在贴附部背离第一粘胶层的表面上。
例如，在本公开的实施例提供的易撕贴中，条形的延伸方向与直角三角形的直角的角平分线的延伸方向相同。
例如，在本公开的实施例提供的易撕贴中，直角三角形为等腰直角三角形，条形的延伸方向的中心线与直角三角形的斜边的垂直平分线重合。
例如，在本公开的实施例提供的易撕贴中，撕手部包括与直角三角形的第一直角边相连的第一撕手区，在撕手部覆盖在贴附部背离第一粘胶层的表面上的状态下，第一撕手区的边缘不超过直角三角形的第二直角边。
例如，在本公开的实施例提供的易撕贴中，第一撕手区和第一贴附区相对 于第一直角边对称。
例如，在本公开的实施例提供的易撕贴中，撕手部还包括第二撕手区，在撕手部覆盖在贴附部背离第一粘胶层的表面上的状态下，第二撕手区至少部分覆盖在第二贴附区上。
例如，在本公开的实施例提供的易撕贴中，第二撕手区和第二贴附区相对于第一直角边对称。
例如，本公开的实施例提供的易撕贴，还包括：第二粘胶层。第二粘胶层设置在撕手部和贴附部至少之一上，且第一粘胶层与第二粘胶层分别设置在主体层在展开状态下彼此相对的两个表面上。
例如，在本公开的实施例提供的易撕贴中，在撕手部覆盖在贴附部背离第一粘胶层的表面上的状态下，第二粘胶层位于撕手部和贴附部之间。
例如，在本公开的实施例提供的易撕贴中，第二粘胶层仅覆盖撕手部和/或贴附部靠近第一直角边的一部分。
例如，在本公开的实施例提供的易撕贴中，第二粘胶层覆盖第二贴附区靠近第一直角边的一部分。
例如，在本公开的实施例提供的易撕贴中，第一粘胶层的粘附力大于第二粘胶层的粘附力。
本公开至少一实施例提供一种保护膜组件，该保护膜组件包括：本公开任一实施例提供的易撕贴，以及保护膜。保护膜包括一直角区；易撕贴粘附在直角区上，且直角三角形的两直角边与直角区的两直角边的边缘平齐。
例如，在本公开的实施例提供的保护膜组件中，条形的延伸方向与直角三角形的直角的角平分线的延伸方向相同。
例如，在本公开的实施例提供的保护膜组件中，条形的延伸方向与保护膜的对角线的延伸方向相同。
例如，在本公开的实施例提供的保护膜组件中，贴附部粘附在保护膜的边缘内侧。
例如，在本公开的实施例提供的保护膜组件中，在撕手部覆盖在贴附部背离第一粘胶层的表面上的状态下，撕手部位于保护膜的边缘内侧。
本公开的至少一实施例提供一种易撕贴和保护膜组件，该易撕贴可贴附在保护膜的直角区，在剥离保护膜时，保护膜的受力位置可以从其直角顶点延伸至两直角边，保护膜的受力方向可大致沿其直角的角平分线的延伸方向，从而 使保护膜的受力方向、位置等更加科学有效，提高保护膜被剥离的成功率，提升工作效率。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本公开的一些实施例，而非对本公开的限制。
图1a为一种易撕贴的平面结构示意图；
图1b为沿图1a中线W-W'方向该易撕贴的截面结构示意图；
图2a为一种易撕保护膜的平面结构示意图；
图2b为沿图2a中线A-A'方向该易撕保护膜的截面结构示意图；
图2c为另一种易撕保护膜的平面结构示意图；
图2d为沿图2c中线B-B'方向该易撕保护膜的截面结构示意图；
图3a为本公开一实施例提供的一种易撕贴的平面结构示意图；
图3b示出了图3a所示的易撕贴的截面结构示意图；
图4a为本公开一实施例提供的一种保护膜组件的平面结构示意图；
图4b示出了沿图4a中线C-C'方向该保护膜组件的截面结构示意图；
图5为本公开一实施例提供的一种剥离保护膜的操作方法的流程图；以及
图6a至6c为本公开一实施例提供的一种剥离保护膜的操作方法的工艺流程图。
具体实施方式
为了使得本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者 物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
附图中各个部件或结构并非严格按照比例绘制，为了清楚起见，可能夸大或缩小各个部件或结构的尺寸，但是这些不应用于限制本公开的范围。为了保持本公开实施例的以下说明清楚且简明，本公开省略了已知功能和已知部件的详细说明。
图1a为一种易撕贴的平面结构示意图，图1b为沿图1a中线W-W'方向该易撕贴的截面结构示意图。
例如，如图1a和1b所示，该易撕贴7为矩形结构，其包括基材71、粘胶70和离型膜72。易撕贴7被划分为贴附区T2和撕手区T1，粘胶70设置在贴附区T2上，离型膜72设置在粘胶70上且与粘胶70的边缘对齐，离型膜72可以保护粘胶70不被污染。
图2a为一种易撕保护膜的平面结构示意图，图2b为沿图2a中线A-A'方向该易撕保护膜的截面结构示意图；图2c为另一种易撕保护膜的平面结构示意图；图2d为沿图2c中线B-B'方向该易撕保护膜的截面结构示意图。
例如，如图2a至2d所示，易撕保护膜可以包括易撕贴7和保护膜8，易撕贴7可以通过粘胶70贴附在保护膜8上。在剥离保护膜8时，用户手持撕手区T1，从撕手区T1和贴附区T2的交界处向保护膜8施加力，从而剥离保护膜8。
例如，易撕贴7可以采用两种贴附方式贴附在保护膜8上。图2a和2b示出了第一种贴附方式。第一种贴附方式为易撕贴7的贴附区T2贴附在保护膜8的边缘上，在剥离保护膜8时，保护膜8的受力点位于撕手区T1和贴附区T2的交界处，即在保护膜8的膜面中部，从而第一种贴附方式不利于保护膜8的边缘起角剥离；另一方面，在剥离保护膜8时，保护膜8的受力方向沿X方向，即沿保护膜8的外侧方向受力，因此无法有效剥离保护膜8；又例如，图2c和2d示出了第二种贴附方式。第二种贴附方式为易撕贴7的贴附区T2贴附在保护膜8的膜面中部，撕手区T1位于保护膜8的边缘，在剥离保护膜8时，贴附区T2与保护膜8的边缘存在间隙，因此，第二种贴附方式也不利于保护膜8从边缘起角剥离，无法有效剥离保护膜8。
本公开至少一实施例提供一种易撕贴，该易撕贴包括：主体层和第一粘胶 层，主体层包括贴附部和撕手部，第一粘胶层设置在贴附部上。贴附部包括第一贴附区和第二贴附区，第一贴附区为直角三角形，第二贴附区为条形；撕手部通过直角三角形的第一直角边与贴附部相连接，且该撕手部被配置为沿第一直角边向贴附部弯折以覆盖在贴附部背离第一粘胶层的表面上。
本公开至少一实施例还提供一种保护膜组件，该保护膜组件包括：本公开任一实施例提供的易撕贴，以及保护膜。保护膜包括一直角区；易撕贴粘附在直角区上，且第一贴附区的直角三角形的两直角边与直角区的两直角边的边缘平齐。
本公开实施例提供的易撕贴可粘附在保护膜的直角区，在剥离保护膜时，保护膜的受力位置可以从其直角顶点延伸至两直角边，保护膜的受力方向可大致沿其直角的角平分线的延伸方向，从而使保护膜的受力方向、位置等更加科学有效，提高保护膜被剥离的成功率，提升工作效率。
下面对本公开的几个实施例进行详细说明，但是本公开并不限于这些具体的实施例。
在本公开实施例的以下说明中，“展开状态”指的是撕手部未粘附在贴附部上的状态；“折叠状态”指的是撕手部覆盖在贴附部背离第一粘胶层的表面上的状态，例如，可以为撕手部通过第二粘胶层粘附在在贴附部背离第一粘胶层的表面上的状态。
在本公开实施例的以下说明中，“方向相同”是指两个延伸方向大致相同。例如，两个方向完全平行；或者两个方向近似平行。
本公开实施例提供一种易撕贴。图3a示出了本公开实施例提供的一种易撕贴的平面结构示意图，图3b示出了图3a所示的易撕贴的截面结构示意图。
例如，如图3a和3b所示，该易撕贴100包括：主体层10和第一粘胶层11。主体层10包括贴附部R1和撕手部R2，第一粘胶层11设置在贴附部R1上。贴附部R1包括第一贴附区R11和第二贴附区R12，第一贴附区R11为直角三角形，第二贴附区R12为条形，条形的延伸方向例如可以与直角三角形的直角的角平分线的延伸方向相同。撕手部R2通过直角三角形的第一直角边101与贴附部R1相连接，且该撕手部R2被配置为可沿第一直角边101向贴附部R1弯折以覆盖在贴附部R1背离第一粘胶层11的表面上。图3a和图3b为易撕贴100在展开状态下的示意图。在折叠状态下，例如，撕手部R2可以沿图3a中的第一直角边101向左弯折，并覆盖在贴附部R1背离第一粘胶层11的 表面上。
本公开实施例提供的易撕贴的第一贴附区可以粘附在保护膜的直角区且与直角区的两直角边的边缘平齐，在剥离保护膜时，使保护膜的受力位置可以从其直角顶点延伸至两直角边，保护膜的受力方向可大致沿其直角的角平分线的延伸方向，从而使保护膜的受力方向、位置等更加科学有效；第二贴附区可以增大粘附面积，从而增大易撕贴与保护膜之间的粘附力，在剥离保护膜时，防止易撕贴从保护膜上脱离，提高保护膜被剥离的成功率。
例如，本公开实施例提供的易撕贴100可以应用于各种类型的保护膜上。保护膜可以为功能型保护膜，也可以为非功能型保护膜。功能型保护膜可以包括防反射保护膜、防反光保护膜、防窥保护膜膜、高清防刮保护膜等，本公开实施例对此不作限制。例如，在保护膜上可以形成防反射层，防反射层可以为由高折射率层和低折射率层组成的多层薄膜，从而保护膜可以具有防反射的功能。
例如，主体层10的材料可以为聚对苯二甲酸乙二醇酯(PET)基材、聚乙烯(PE)基材或聚氯乙烯(PVC)基材等。
例如，直角三角形的第一直角边101和第二直角边102相互垂直，垂直包括严格垂直，或近似垂直。直角三角形的直角例如可以为圆角直角，从而易撕贴100可以适用于圆角型保护膜的剥离。
例如，直角三角形可以为等腰直角三角形，条形可以为矩形，且条形的延伸方向的中心线与直角三角形的斜边103的垂直平分线重合，也就是说，条形的延伸方向的中心线与直角三角形的直角的角平分线重合，从而贴附部R1的形状为对称的五边形，在剥离保护膜时，对称的结构可以使保护膜的受力方向更加均匀。需要说明的是，在本公开实施例中，“重合”表示大致重合或严格重合。
例如，第二贴附区R12的在与延伸方向垂直的方向上彼此相对的两个侧边可以为直线形、弧形、折线形或其他规则或不规则形状，从而第二贴附区R12的形状可以为多边形、半椭圆形或弓形等，多边形可以包括四边形(例如矩形、梯形)等。
例如，第一粘胶层11可以完全覆盖贴附部R1的其中一个表面，从而使贴附部R1可以完全粘附在保护膜上，防止贴附部R1产生翻折、翘起等变形。
例如，第一粘胶层11的材料可以为有机粘胶剂，有机粘胶剂例如可以包 括天然高分子、有机硅胶、环氧树脂、聚氨酯、聚酯纤维、聚丙烯树脂、聚乙烯树脂或丙烯酸树脂等。第一粘胶层11的材料还可以包括无机粘胶剂，无机粘胶剂例如可以包括水玻璃、磷酸盐胶粘剂、硅酸盐胶粘剂、硫酸盐胶粘剂或硼酸盐胶粘剂等。
例如，如图3a所示，撕手部R2可以包括与直角三角形的第一直角边101相连的第一撕手区R21，在撕手部R2覆盖在贴附部R1背离第一粘胶层11的表面上的状态下，第一撕手区R21的边缘不超过直角三角形的第二直角边102。例如，在易撕贴100处于折叠状态下，撕手部R2的第一撕手区R21完全落入贴附部R1的第一贴附区R11的区域内。
例如，第一撕手区R21和第一贴附区R11可以相对于第一直角边101对称，从而第一撕手区R21的形状与第一贴附区R11相同，即第一撕手区R21也为直角三角形，在撕手部R2覆盖在贴附部R1背离第一粘胶层11的表面上的状态下，第一撕手区R21和第一贴附区R11完全重叠。需要说明的是，第一撕手区R21的形状还可以与第一贴附区R11不同，例如第一撕手区R21的形状还可以为锐角三角形、矩形等。
例如，撕手部R2还可以包括第二撕手区R22，在撕手部R2覆盖在贴附部R1背离第一粘胶层11的表面上的状态下，第二撕手区R22可以至少部分覆盖在第二贴附区R12上。当剥离保护膜时，操作人员可以握持第二撕手区R22，以方便地控制保护膜的受力方向和位置。
例如，第二撕手区R22和第二贴附区R12也可以相对于第一直角边101对称，从而第二撕手区R22的形状和第二贴附区R12相同。第二撕手区R22的形状和第二贴附区R12也可以不同。例如，第二撕手区R22可以为T字形状，其远离第一撕手区R21的一侧的横截面积大于靠近第一撕手区R21一侧的横截面积，从而增大操作人员握持易撕贴100的面积，方便操作人员握持易撕贴100，进而提高撕膜的效率。
例如，第一撕手区R21和第一贴附区R11相对于第一直角边101对称，第二撕手区R22和第二贴附区R12也相对于第一直角边101对称，从而贴附部R1和撕手部R2相对第一直角边101对称，即撕手部R2可以沿第一直角边101向贴附部R1弯折从而与贴附部R1完全重叠。
例如，撕手部R2和贴附部R1的颜色可以相同，也可以不相同。例如，贴附部R1可以无色透明，撕手部R2可以为红色，从而提高撕手部R2的辨识 度，使操作人员快速准确的找出撕手部R2，提高工作效率。需要说明的是，贴附部R1和撕手部R2的颜色可以根据实际情况具体设置，本公开实施例对此不作限制。
例如，如图3b所示，该易撕贴100还包括第二粘胶层12。第二粘胶层12可以设置在撕手部R2和贴附部R1至少之一上。当主体层10处于展开状态下，第一粘胶层11与第二粘胶层12设置在主体层10彼此相对的两个表面上。
例如，在撕手部R2覆盖在贴附部R1上的状态下，第二粘胶层12可以位于撕手部R2和贴附部R1之间，第二粘胶层12可以将撕手部R2固定在贴附部R1上，防止撕手部R2产生翘起、弯折等变形。
例如，第二粘胶层12仅覆盖撕手部R2和/或贴附部R1靠近第一直角边101的一部分。当撕手部R2通过第二粘胶层12粘附在贴附部R1上时，撕手部R2可以留下未被第二粘胶层12固定的一部分，进而方便操作人员握持该未被第二粘胶层12固定的一部分以分离撕手部R2和贴附部R1。
例如，第二粘胶层12可以覆盖第二撕手区R22和/或第二贴附区R12靠近第一直角边101的一部分。如图3a所示，第二粘胶层12可以设置在第二撕手区R22靠近第一撕手区R21的一侧。当主体层10处于折叠状态下，第二撕手区R22远离第一撕手区R21的一部分未通过第二粘胶层22固定在贴附部R1上，因此，操作人员可以握持第二撕手区R22远离第一撕手区R21的一部分，以分离撕手部R2和贴附部R1。
例如，第一粘胶层11的粘附力大于第二粘胶层12的粘附力。撕手部R2通过第二粘胶层12粘附在贴附部R1上，易撕贴100通过第一粘胶层11贴附在保护膜上，从而当分离撕手部R2和贴附部R1时，易撕贴100可以牢固地粘附在保护膜上。
例如，第二粘胶层12的材料可以与第一粘胶层11相同，也可以不相同。当第二粘胶层12的材料与第一粘胶层11相同时，可以通过控制材料的参数，从而保证第一粘胶层11的粘附力大于第二粘胶层12的粘附力。例如，对于聚合物材料，材料的参数例如可以包括分子表面的极性、分子的聚合度、分子的结晶性或填料等。例如，当第一粘胶层11和第二粘胶层12都为聚乙烯树脂时，可以对第一粘胶层11的聚乙烯树脂的表面进行等离子处理，在其表面上产生极性基团(例如羟基、羰基或羧基等)，从而提高聚乙烯树脂的粘接强度，进而可以提高第一粘胶层11的粘附力。
例如，如图3b所示，该易撕贴100还包括：离型膜13。离型膜13可以完全覆盖在第一粘胶层11上且与第一粘胶层11的边缘平齐，从而隔离并保护第一粘胶层11，防止第一粘胶层11被异物污染而失去粘附性。
例如，离型膜13可以为PE离型膜等，离型膜13可以设置不同的颜色(例如黄色等)。在贴附易撕贴100时，操作人员可以快速准确地找出第一粘胶层11的位置，提高工作效率。
例如，离型膜13还可以设置在第二粘胶层12上，从而隔离并保护第二粘胶层12，防止第二粘胶层12被污染。需要说明的是，在出货时，易撕贴100可以处于展开状态或折叠状态，当易撕贴100处于折叠状态下，第二粘胶层12可以设置在撕手部R2和贴附部R1之间，以将撕手部R2固定在贴附部R1上，因此，在第二粘胶层12上不需要设置离型膜13。但是，如图3a和3b所示，当易撕贴100处于展开状态下，在第二粘胶层12上则需要设置离型膜13，以保护第二粘胶层12。
本公开实施例还提供一种保护膜组件，该保护膜组件结构简单、操作方便、易于撕除。图4a示出了本公开实施例提供的一种保护膜组件的平面结构示意图，图4b示出了沿图4a中线C-C'方向该保护膜组件的截面结构示意图。
例如，如图4a和4b所示，该保护膜组件包括：上述实施例提供的易撕贴100，以及保护膜200。保护膜200包括一直角区；易撕贴100粘附在直角区内，且其直角三角形的两直角边与保护膜200的直角区的两直角边的边缘平齐。易撕贴100的条形的延伸方向与直角三角形的直角的角平分线的延伸方向相同。
例如，保护膜200的形状可以为矩形、扇形或回字形等。
例如，保护膜200的直角区的直角的角平分线的延伸方向可以与易撕贴100的直角三角形的直角的角平分线的延伸方向相同，从而易撕贴100的第二贴附区可沿保护膜200的直角区的直角的角平分线的延伸方向贴附。在剥离保护膜200时，保护膜200的受力方向可从其直角区的直角顶点延伸至两直角边，保护膜的受力方向可大致沿其直角区的直角平分线的延伸方向，保护膜的直角区的两直角边可以受力更加均匀、平衡，受力方向、位置等均更加有利于保护膜的剥离，提高保护膜被剥离的成功率，提升工作效率。
例如，保护膜200的材料可以为聚丙烯(PP)、聚氯乙烯(PVC)、聚乙烯(PE)、聚酯(PET)、邻苯基苯酚(OPP)或光学胶(OCA)等。
例如，保护膜200可以采用吹塑法、流延法或压延法等方法制备。
例如，保护膜200包括第三粘胶层。保护膜200可以通过第三粘胶层贴附在面板上，从而保护面板。例如，第一粘胶层11的粘附力需要大于第三粘胶层的粘附力，从而在剥离保护膜200时，易撕贴100可以牢固地粘附在保护膜200上，防止易撕贴100从保护膜200上脱落，提高保护膜200被剥离的成功率。
例如，贴附部粘附在保护膜200的边缘内侧。如图4a所示，在撕手部覆盖在贴附部背离第一粘胶层11的表面上的状态下，撕手部可以位于保护膜200的边缘内侧，从而易撕贴100不影响保护膜200外围的工艺处理。
例如，如图4b所示，撕手部可以通过第二粘胶层12粘附在贴附部背离第一粘胶层11的表面上，从而防止撕手部产生翘起、弯折等变形。需要说明的是，在产品制作过程中，因产品表面各区域的功能不同，从而需要对不同的区域进行不同的工艺处理，因此需要不同类型的保护膜，以对不同的区域进行阶段性保护，例如可以采用回字型保护膜等。回字型保护膜可以包括内圈保护膜和围绕内圈保护膜的外圈保护膜，外圈保护膜和内圈保护膜之间相互分离设置，本公开实施例提供的保护膜组件中的保护膜200可以为内圈保护膜，易撕贴100的贴附部和撕手部都可以位于内圈保护膜的边缘内侧，且其撕手部可通过第二粘胶层12粘附在贴附部上，以防止撕手部产生翘起、弯折等变形，从而避免撕手部位于内圈保护膜所限定的区域以外的空间，因此易撕贴100可以不影响外圈保护膜的剥离；另一方面，在对外圈保护膜对应的区域进行工艺处理时，易撕贴100也可以不影响其工艺操作。
例如，该保护膜组件可以为塑胶保护膜，电子产品保护膜或汽车保护膜等。电子产品可以包括电视、数码相机、手机、手表、平板电脑、笔记本电脑、导航仪等。
本公开实施例还提供一种保护膜组件。
例如，该保护膜组件包括：保护膜和易撕贴。该保护膜包括一直角区。该易撕贴包括主体层和第一粘胶层，主体层包括贴附部和撕手部，第一粘胶层设置在贴附部上，贴附部包括第一贴附区和第二贴附区，第一贴附区为直角三角形，第二贴附区为条形；撕手部通过直角三角形的第一直角边与贴附部相连接，且被配置为沿第一直角边向贴附部弯折以覆盖在贴附部背离第一粘胶层的表面上。易撕贴贴附在直角区上，且其直角三角形的两直角边与保护膜的直角区的两直角边的边缘平齐。易撕贴的条形的延伸方向与保护膜的对角线的延伸方 向相同；或者，其条形的延伸方向与保护膜的直角区的直角的角平分线的延伸方向相同。
与上述实施例所述的保护膜组件不同，本实施例中，易撕贴的条形的延伸方向还可以与保护膜的对角线的延伸方向相同。
例如，当保护膜为矩形时，易撕贴的条形的延伸方向可以与保护膜的对角线的延伸方向相同，从而易撕贴的第二贴附区可沿保护膜的对角线的延伸方向贴附。在剥离保护膜时，保护膜的受力方向可沿其对角线方向。
例如，保护膜的对角线的延伸方向或直角区的直角的角平分线的延伸方向可以与直角三角形的直角的角平分线的延伸方向不同。例如，保护膜的直角区的直角的角平分线的延伸方向与直角三角形的直角的角平分线的延伸方向相同，而保护膜的对角线的延伸方向与直角三角形的斜边的垂线的延伸方向相同。
需要说明的是，本公开实施例中，当保护膜为扇形时，“对角线”可以为从直角区的直角顶点延伸到直角区对应的圆弧的中点的直线；“对角线”还可以为由该直角区的两直角边所限定的矩形的对角线。
在本公开实施例中，保护膜的类型、制作方法以及保护膜与易撕贴的设置关系等可参考上述保护膜组件的实施例中的相关描述，易撕贴的详细说明可以参考上述易撕贴的实施例中相关描述。重复之处不再赘述。
本公开实施例还提供一种剥离上述保护膜组件的实施例提供的保护膜组件的操作方法。图5示出了本公开实施提供的一种剥离保护膜的操作方法的流程图；图6a至6c示出了本公开实施提供的一种剥离保护膜的操作方法的工艺流程图。
例如，如图5所示，本公开实施例的操作方法包括如下步骤：
S1、分离贴附部和撕手部；
S2、剥离保护膜。
下面以保护膜为矩形结构为例对本公开实施例的操作方法进行详细说明。
例如，如图6a所示，该保护膜组件可以设置在面板300上。易撕贴100贴附在保护膜200的直角区，且易撕贴100的撕手部通过第二粘胶层粘附在贴附部上，例如撕手部和贴附部可以呈镜像对称，从而撕手部与贴附部完全重叠。
例如，易撕贴100可以沿保护膜200的对角线的延伸方向或直角区的直角的角平分线的延伸方向贴附在保护膜200上。
例如，面板300可以为金属面板或非金属面板，非金属面板例如可以为玻璃面板、石英面板、陶瓷面板、塑料面板或硅胶面板等，又例如可以为形成有功能部件的面板，例如液晶显示面板、有机发光二极管显示面板等；金属面板例如可以为电镀锌钢板、热浸锌钢板、镀铝锌钢板或紫铜板等。
例如，如图6b所示，握持撕手部沿第一方向拉扯撕手部，以分离撕手部和贴附部。
例如，如图6c所示，握持撕手部沿第二方向拉扯撕手部，使撕手部从保护膜200的直角顶点开始对保护膜200施加力，保护膜200的受力位置从直角顶点延伸至两直角边，从而将保护膜200从面板300上剥离。
例如，第二方向可以为保护膜200的对角线的延伸方向，第二方向还可以为保护膜200的直角区的直角的角平分线的延伸方向。
需要说明的是，在上述保护膜组件的实施例中，保护膜组件中的易撕贴100与保护膜200为一体结构。当易撕贴100与保护膜200不为一体结构时，该操作方法还可以包括贴附易撕贴。例如，当易撕贴100处于折叠状态下，首先撕除第一粘胶层上的离型膜，将直角三角形的两直角边与保护膜200的直角区的两直角边的边缘对齐，然后将贴附部贴附在直角区上，从而形成保护膜组件；又例如，当易撕贴100处于展开状态下，首先撕除第一粘胶层上的离型膜，将直角三角形的两直角边与保护膜200的直角区的两直角边的边缘对齐，然后将贴附部贴附在直角区上；接着撕除第二粘胶层上的离型膜，将撕手部沿第一直角边向贴附部弯折以覆盖在贴附部上，最后通过第二粘胶层将撕手部和贴附部粘附在一起，形成保护膜组件。
对于本公开，还有以下几点需要说明：
(1)本公开实施例附图只涉及到与本公开实施例涉及到的结构，其他结构可参考通常设计。
(2)为了清晰起见，在用于描述本公开的实施例的附图中，层或区域的厚度被放大或缩小，即这些附图并非按照实际的比例绘制。
(3)在不冲突的情况下，本公开的实施例及实施例中的特征可以相互组合以得到新的实施例。
以上所述仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，本公开的保护范围应以所述权利要求的保护范围为准。

Claims (17)

  1. 一种易撕贴，包括：主体层和第一粘胶层，所述主体层包括贴附部和撕手部，所述第一粘胶层设置在所述贴附部上，
    其中，所述贴附部包括第一贴附区和第二贴附区，所述第一贴附区为直角三角形，所述第二贴附区为条形；所述撕手部通过所述直角三角形的第一直角边与所述贴附部相连接，且被配置为沿所述第一直角边向所述贴附部弯折以覆盖在所述贴附部背离所述第一粘胶层的表面上。
  2. 根据权利要求1所述的易撕贴，其中，所述条形的延伸方向与所述直角三角形的直角的角平分线的延伸方向相同。
  3. 根据权利要求1或2所述的易撕贴，其中，所述直角三角形为等腰直角三角形，所述条形的延伸方向的中心线与所述直角三角形的斜边的垂直平分线重合。
  4. 根据权利要求1-3任一项所述的易撕贴，其中，所述撕手部包括与所述直角三角形的第一直角边相连的第一撕手区，在所述撕手部覆盖在所述贴附部背离所述第一粘胶层的表面上的状态下，所述第一撕手区的边缘不超过所述直角三角形的第二直角边。
  5. 根据权利要求4所述的易撕贴，其中，所述第一撕手区和所述第一贴附区相对于所述第一直角边对称。
  6. 根据权利要求4或5所述的易撕贴，其中，所述撕手部还包括第二撕手区，在所述撕手部覆盖在所述贴附部背离所述第一粘胶层的表面上的状态下，所述第二撕手区至少部分覆盖在所述第二贴附区上。
  7. 根据权利要求6所述的易撕贴，其中，所述第二撕手区和所述第二贴附区相对于所述第一直角边对称。
  8. 根据权利要求1-7任一项所述的易撕贴，还包括：第二粘胶层，
    其中，所述第二粘胶层设置在所述撕手部和所述贴附部至少之一上，且所述第一粘胶层与所述第二粘胶层分别设置在所述主体层在展开状态下彼此相对的两个表面上。
  9. 根据权利要求8所述的易撕贴，其中，在所述撕手部覆盖在所述贴附部背离所述第一粘胶层的表面上的状态下，所述第二粘胶层位于所述撕手部和所述贴附部之间。
  10. 根据权利要求8或9所述的易撕贴，其中，所述第二粘胶层覆盖所述撕手部和/或所述贴附部靠近所述第一直角边的一部分。
  11. 根据权利要求8-10任一项所述的易撕贴，其中，所述第二粘胶层覆盖所述第二贴附区靠近所述第一直角边的一部分。
  12. 根据权利要求8-11任一项所述的易撕贴，其中，所述第一粘胶层的粘附力大于所述第二粘胶层的粘附力。
  13. 一种保护膜组件，包括：
    权利要求1-12任一项所述的易撕贴；
    保护膜，所述保护膜包括一直角区；
    其中，所述易撕贴粘附在所述直角区上，且所述直角三角形的两直角边与所述直角区的两直角边的边缘平齐。
  14. 根据权利要求13所述的保护膜组件，其中，所述条形的延伸方向与所述直角三角形的直角的角平分线的延伸方向相同。
  15. 根据权利要求13所述的保护膜组件，其中，所述条形的延伸方向与所述保护膜的对角线的延伸方向相同。
  16. 根据权利要求13-15任一项所述的保护膜组件，其中，所述贴附部粘附在所述保护膜的边缘内侧。
  17. 根据权利要求13-16任一项所述的保护膜组件，其中，在所述撕手部覆盖在所述贴附部背离所述第一粘胶层的表面上的状态下，所述撕手部位于所述保护膜的边缘内侧。
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