TWM449699U - Stripping paster for release film - Google Patents

Description

Release film for release film

The present invention relates to a release sheet for a release film, and more particularly to a release sheet for a release film which can be attached to a release film to help separate the release film from the polarizing plate.

The liquid crystal display panel mainly injects liquid crystal between two glass substrates, one of which has a color filter attached to the inner side of the glass substrate, and the other side of the glass substrate is inlaid with a transistor, and the outer side of the two glass substrate is attached with Polarizer. One side of the polarizing plate has a pressure sensitive adhesives (PSA) layer, and the pressure sensitive adhesive layer has adhesiveness and is attached to the glass substrate, and the feeling is prevented before the polarizing plate is bonded to the glass substrate. The adhesive layer is stained with dust. A layer of release film is attached to the pressure sensitive adhesive layer before use. To assemble the polarizing plate and the glass substrate, the release film on the polarizing plate must be removed first. In this case, the polarizing plate to which the release film is attached is usually fixed to a fixing platform, and then a strip-shaped peeling adhesive sheet is attached to a corner of the release film, and the peeling adhesive sheet is lifted up. And the release film is pulled away from the polarizing plate.

Referring to FIG. 1 , it is a schematic view of a conventional adhesive sheet for peeling. The conventional adhesive sheet 9 has opposing planes, wherein a plane is provided with an adhesive portion 91 and a holding portion 92. The portion 91 is disposed at one end of the plane, and the viscous portion 91 is coated with an adhesive.

Referring to FIG. 2, the adhesive sheet conveying device 80 for picking up the conventional peeling adhesive sheet 9 is provided. The adhesive sheet conveying device 80 is provided with a rotatable operation. a rotating wheel 81, the rotating wheel 81 is wound with a film 82 for carrying the conventional peeling adhesive sheet 9; thereby, when the rotating wheel 81 is driven to rotate, the roller 81 can be matched with a plurality of rollers The peeling adhesive sheet 9 is conveyed to a discharge end 83 to take the peeling adhesive sheet 9.

Referring to FIG. 3, a fixing platform 84 for removing the release film 93 to which the conventional peeling adhesive sheet 9 is attached is disclosed. The fixing platform 84 is provided with a release film 93 attached thereto. The polarizing plate 94, and the polarizing plate 94 is fixed to the fixing platform 84. This is a conventional technical means in the art, which can be understood by those skilled in the art, and will not be described again; when the peeling adhesive sheet 9 is taken After that, the adhesive sheet 9 can be adhered to the corner of a release film 93 by the adhesive portion 91. When the release film 93 is removed, the adhesive sheet 9 is lifted by the holding portion 92. The release film 93 can be easily removed. At this time, since the polarizing plate 94 is fixed to the fixing platform 84, the pressure sensitive adhesive layer which is originally protected by the release film 93 and can be combined with the glass substrate can be exposed.

However, the adhesive portion 91 has a square shape, and when used, the peeling adhesive sheet 9 is peeled off, and when the release adhesive sheet 9 is attached to the release film 93, the peeling adhesive sheet is used. 9 is attached to one corner of the release film 93. Accordingly, as shown in FIGS. 3 and 4, the adhesive portion 91 has a portion of the adhesive portion 95 exposed on the outer side of the release film 93, thereby causing coating. The adhesive disposed in the adhesive region 95 is not attached to the release film 93, so that the adhesive is applied to fix the release film 93 during the process of removing the release film. Fixing the platform 84 causes residue, which may cause the residual glue to adhere to the polarizing plate 94 which is next fixed to the fixed platform 84, causing contamination of the polarizing plate 94, and in order to remove the residual glue on the fixed platform 84, Artificial cotton Dip the alcohol or remove the oil to wipe the platform, causing a lot of manpower waste.

The present invention provides a release sheet for release film, and when the release adhesive sheet is used, the adhesive for the release adhesive sheet can be reduced by the machine for fixing and peeling, thereby reducing the cleaning machine. The waste caused by the stains.

In order to achieve the above-mentioned creative purposes, the technical means used in the present invention includes: a release film for a release film, comprising: a substrate sheet having a corresponding two surfaces, and the substrate sheet a first end edge and a second end edge are disposed, and a first outer peripheral edge and a second outer peripheral edge are disposed between the first end edge and the second end edge; and an adhesive The adhesive portion is disposed on a surface of the substrate sheet, and the adhesive portion is provided with a corresponding first circumference and a second circumference, and the first circumference and the second circumference surround the adhesive portion. The first peripheral edge is adjacent to the first end edge of the substrate sheet, and the second peripheral edge extends from the first end edge of the substrate sheet toward the second end edge, and the second peripheral edge is not adjacent to the base The first outer circumference and the second outer circumference of the material sheet, and the second circumference forms at least one exposed portion between the first outer circumference and the second outer circumference of the substrate sheet.

In the adhesive sheet for peeling off the release film of the present invention, the second peripheral edge of the adhesive portion is a transition line composed of two line segments, and the adhesive portion has a triangular shape.

In the adhesive sheet for peeling off the release film of the present invention, the second circumference is a continuous curve, and the adhesive portion has a semicircular shape or a semi-elliptical shape.

In the adhesive sheet for peeling off the release film of the present invention, the second circumference is A turning line composed of three line segments, and the adhesive portion has a quadrangular shape.

The above and other objects, features and advantages of the present invention will become more apparent and obvious. The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings: FIG. A three-dimensional appearance of the preferred embodiment of the present invention, the release film of the release film comprises a substrate sheet 1 and an adhesive portion 2, the substrate sheet 1 having a corresponding two planes, and the adhesive portion 2 is disposed on one of the planes of the substrate sheet 1.

The substrate sheet 1 is preferably a one-piece structure, but not limited thereto, the substrate sheet 1 has a corresponding first end edge 11 and a second end edge 12, the first end edge 11 and the second end A corresponding first outer periphery 13 and a second outer periphery 14 are disposed between the edges 12, and the substrate sheet 1 is selected from the group consisting of polypropylene (PP), polyethylene (PE), and polyvinyl chloride (polyvinylchluride). A sheet composed of a plastic material such as PVC) or polyethylene terephthalate, and the thickness of the release sheet is 0.02 to 0.3 mm, preferably 0.08 to 0.15 mm.

The adhesive portion 2 is disposed on a plane of the substrate sheet 1, and the adhesive portion 2 has a corresponding first peripheral edge 21 and a second peripheral edge 22, and the second peripheral edge 22 can be composed of one or several line segments. (See the description below), the first peripheral edge 21 is adjacent to the first end edge 11 of the substrate sheet 1, and the second peripheral edge 22 is from the first end edge 11 of the substrate sheet 1 to the substrate sheet. a second end edge 12 of the 1 extends, and the first peripheral edge 21 and the second peripheral edge 22 surround the adhesive layer Department 2. The second peripheral edge 22 is not adjacent to the first outer peripheral edge 13 or the second outer peripheral edge 14 of the substrate sheet 1, and the second peripheral edge 22 of the adhesive portion 2 and the first substrate sheet 1 are At least one exposed portion 15 is formed between the outer peripheral edge 13 and the second outer peripheral edge 14. The adhesive portion 2 is coated with a glue, and the adhesive is selected from the group consisting of an aqueous acrylic adhesive, an oily acrylic adhesive or a thermal adhesive, and the adhesive may have a thickness of 0.02 to 0.3 mm. Preferably, it is 0.08 to 0.15 mm.

The adhesive portion 2 of the release sheet for the release film of the present invention may preferably be in the following several embodiments: as shown in FIG. 5, the second peripheral edge 22 of the adhesive portion 2 is composed of a first line segment 221 and a a second line segment 222 is formed, the first line segment 221 and the second line segment 222 are connected to form a turning line, and the second peripheral edge 22 and the first peripheral edge 21 are formed to form a triangular shaped adhesive portion 2, and the first line segment A second peripheral portion 22 forms a second exposed portion 15 between the first peripheral edge 22 and the first outer peripheral edge 13 and the second outer peripheral edge 14 of the base material sheet 1.

As shown in FIG. 6, the second peripheral edge 22a of the adhesive portion 2a has a line segment which is a continuous curve, and the second peripheral edge 22a and the first peripheral edge 21a form a semi-circular or semi-elliptical shape. The portion 2a and the second peripheral edge 22a form a second exposed portion 15 between the first outer peripheral edge 13 and the second outer peripheral edge 14 of the base material sheet 1.

As shown in FIG. 7, the second peripheral edge 22b of the adhesive portion 2b is composed of a first line segment 221b, a second line segment 222b and a third line segment 223b, the first line segment 221b and the third line segment 223b. And the second line segment 222b is connected to form a turning line having a continuous turning section, and the second peripheral edge 22b and the first peripheral edge 21b are formed to form a quadrangular shape of the adhesive portion 2b, and the second peripheral edge 22b is associated with the The first outer periphery 13 of the substrate sheet 1 A second exposed portion 15 is formed between the second outer periphery 14 and the second outer periphery 14 .

Referring to Fig. 8, when the release film of the release film is attached to the corner of the release film 3 by the adhesive portion 2, since the release adhesive sheet has at least one exposed portion 15, the adhesion is reduced when it is adhered. In the range of the adhesive portion 2 on the outer side of the release film 3, the adhesive exposed on the outer side of the release film 3 is further reduced.

Referring to Fig. 9, a schematic view of the use of the release film 3 and the polarizing plate 4 for separating the release film of the present release film is used, since the adhesive film is attached to the adhesive portion 2 by the adhesive portion 2 Since the peeling adhesive sheet is lifted up, the release film 3 adhering to the polarizing plate 4 can be easily removed, and the pressure sensitive adhesive layer of the polarizing plate 4 can be exposed. The pressure sensitive adhesive layer adheres the polarizing plate 4 to the glass substrate.

In summary, the present invention has a bare portion formed by the second peripheral edge of the adhesive portion and the first outer peripheral edge and the second outer peripheral edge of the base sheet, thereby reducing the area of the adhesive portion, so that the peeling is used for the peeling When the adhesive sheet is attached to the corner of the release film, the adhesive portion exposed on the outer side of the release film can be reduced, thereby preventing excess adhesive from being exposed on the outside of the release film, and even being infiltrated with the machine during use, causing inconvenience .

Although the present invention has been disclosed by the above-described preferred embodiments, it is not intended to limit the present invention, and it is still within the spirit and scope of the present invention to make various changes and modifications to the above embodiments. The technical scope of the protection is created, so the scope of protection of this creation is subject to the definition of the patent application scope attached.

[this creation]

1‧‧‧Substrate sheet

11‧‧‧First end edge

12‧‧‧second edge

13‧‧‧First outer periphery

14‧‧‧Second outer periphery

15‧‧‧Bare department

2‧‧‧Adhesive

2a‧‧‧Adhesive

2b‧‧‧Adhesive

21‧‧‧First Week

21a‧‧‧First Week

21b‧‧‧First Week

22‧‧‧second circumference

22a‧‧‧second circumference

22b‧‧‧second circumference

221‧‧‧First line

221b‧‧‧first line segment

222‧‧‧second line

222b‧‧‧second line

223b‧‧‧ third line segment

3‧‧‧ release film

4‧‧‧Polar plate

[study]

80‧‧‧Conveyor

81‧‧‧Runner

82‧‧‧film

83‧‧‧Drawing end

84‧‧‧Fixed platform

9‧‧‧ peeling adhesive sheet

91‧‧‧Adhesive

92‧‧‧ Holding Department

93‧‧‧ release film

94‧‧‧Polar plate

95‧‧‧Stained area

Figure 1: Schematic diagram of a conventional adhesive sheet for peeling.

Fig. 2 is a schematic view showing a conveying device for taking a conventional peeling adhesive sheet.

Fig. 3 is a schematic view showing a release film adhered to a fixed platform by a conventional adhesive sheet.

Figure 4: An enlarged view of the adhesive area of Figure 3.

Figure 5: The first aspect of the adhesive sheet for the release film of the present invention.

Fig. 6 is a perspective view showing the second aspect of the peeling adhesive sheet of the present invention.

Figure 7: The third aspect of the adhesive sheet for the release film of the present invention.

Fig. 8 is a schematic view showing the state of the release film attached to the release film of the release film.

Figure 9: Schematic diagram of the use of the adhesive sheet for the release film of the present invention.

1‧‧‧Substrate sheet

11‧‧‧First end edge

12‧‧‧second edge

13‧‧‧First outer periphery

14‧‧‧Second outer periphery

15‧‧‧Bare department

2‧‧‧Adhesive

21‧‧‧First Week

22‧‧‧second circumference

221‧‧‧First line

222‧‧‧second line

Claims (8)

A release sheet for a release film, comprising: a substrate sheet having a corresponding two surfaces, wherein the substrate sheet is provided with a corresponding first end edge and a second end edge Between the first end edge and the second end edge, a first outer peripheral edge and a second outer peripheral edge are disposed; and an adhesive portion is disposed on a surface of the substrate sheet. And the adhesive portion is provided with a corresponding first circumference and a second circumference, wherein the first circumference and the second circumference surround the adhesive portion, and the first circumference is coupled to the first substrate sheet An end edge extending from the first end edge of the substrate sheet toward the second end edge, the second periphery not being adjacent to the first outer circumference and the second outer circumference of the substrate sheet, and the first circumference At least one exposed portion is formed between the two peripheral edges and the first outer periphery and the second outer periphery of the substrate sheet. The peeling adhesive sheet for a release film according to claim 1, wherein the second peripheral edge of the adhesive portion is a turning line composed of two line segments. The release sheet for a release film according to the second aspect of the invention, wherein the adhesive portion has a triangular shape. The peeling adhesive sheet for a release film according to claim 1, wherein the second peripheral edge of the adhesive portion is a continuous curve. The adhesive sheet for release film of the release film according to Item 4, wherein the adhesive portion has a semicircular shape. The release sheet for a release film according to the invention of claim 4, wherein the adhesive portion has a semi-elliptical shape. The release sheet for a release film according to claim 1, wherein the second peripheral edge of the adhesive portion is a transition line composed of three line segments. The adhesive sheet for release film of the release film according to Item 7, wherein the adhesive portion has a quadrangular shape.