CN211570530U

CN211570530U - Processing procedure protection film for polaroid die cutting

Info

Publication number: CN211570530U
Application number: CN201922336064.XU
Authority: CN
Inventors: 徐凌; 华小龙; 郑子能
Original assignee: Weisi New Material Taizhou Co ltd
Current assignee: Weisi New Material Taizhou Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-09-25
Anticipated expiration: 2029-12-23

Abstract

The utility model discloses a polaroid is processing procedure protection film for cross cutting relates to protection film technical field, and this protection film includes substrate layer, gluing layer and leaves the type layer, the substrate layer includes first substrate layer, second substrate layer and third substrate layer, gluing layer includes first gluing layer, second gluing layer and third gluing layer, first substrate layer, second substrate layer and third substrate layer and first gluing layer, second gluing layer and third gluing layer set up at the interval in proper order, leave the type layer laminating in third gluing layer bottom surface. The protective film disclosed by the application is a base material multi-layer composite and colored design, and not only has high air exhaust performance and stable viscosity (low climbing), but also has low pollution and static resistance, and can be repeatedly used.

Description

Processing procedure protection film for polaroid die cutting

Technical Field

The utility model relates to a protection film technical field, in particular to processing procedure protection film is used to polaroid cross cutting.

Background

In the die cutting process of the polaroid, in order to prevent the pollution or damage of the surface of the polaroid, a protective film is attached to the back surface of the polaroid to serve as a bearing film, and the polaroid is stripped and sucked away from the protective film after the die cutting of the polaroid is completed. The existing protective film adhesive layer has high resistance value and can generate static voltage, most protective films can not be repeatedly used for many times, the environment is not protected, and even if the protective films can be repeatedly used, the viscosity attenuation value of the protective films is reduced, and the viscosity is not stable.

SUMMERY OF THE UTILITY MODEL

For the resistance value of overcoming the current protection film adhesive layer that exists among the prior art is high, can produce electrostatic voltage, and most protection films all can not used repeatedly many times, and environmental protection not, even can repetitious usage, the viscous force attenuation value of this protection film reduces, the also unstable problem of viscidity, the utility model provides a polaroid is processing procedure protection film for cross cutting.

The specific technical scheme is as follows:

the utility model provides a polaroid is processing procedure protection film for cross cutting, includes substrate layer, gluing layer and leaves the type layer, the substrate layer includes first substrate layer, second substrate layer and third substrate layer, gluing layer includes first gluing layer, second gluing layer and third gluing layer, first substrate layer, second substrate layer and third substrate layer and first gluing layer, second gluing layer and third gluing layer set up in proper order at an interval, it laminates in third gluing layer bottom surface to leave the type layer.

Preferably, the first substrate layer and the second substrate layer are both polyethylene terephthalate films, and the third substrate layer is a white colored polyethylene terephthalate film.

Preferably, first gluing layer and second gluing layer are compound gluing layer, the third gluing layer is polyurethane gluing layer.

Preferably, the polyurethane adhesive layer comprises a multilayer composite polyethylene terephthalate film coated with an antistatic polyurethane pressure sensitive adhesive.

Preferably, the release layer is a polyethylene terephthalate release film.

Compared with the prior art, the utility model following beneficial effect has:

the process protection film for the polaroid die cutting is a multi-layer composite and colored design of a base material, and has the advantages of high air exhaust performance, stable viscosity (low climbing), low pollution, static resistance and repeated use.

Drawings

Fig. 1 is a schematic structural view of the process protection film for die cutting of the polarizer of the present invention.

In the figure, 1-a first substrate layer, 2-a second substrate layer, 3-a third substrate layer, 4-a first adhesive layer, 5-a second adhesive layer, 6-a third adhesive layer, and 7-a release layer.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The utility model discloses a processing procedure protection film is used in polaroid cross cutting, as shown in figure 1, including the substrate layer, glue the layer and leave type layer 7, the substrate layer includes first substrate layer 1, second substrate layer 2 and third substrate layer 3, and glue the layer and include first gluing layer 4, second gluing layer 5 and third gluing layer 6, and first substrate layer 1, second substrate layer 2 and third substrate layer 3 and first gluing layer 4, second gluing layer 5 and third gluing layer 6 interval in proper order set up, and the laminating is in 6 bottom surfaces of third gluing layer 7 from type layer.

Preferably, the first substrate layer 1 and the second substrate layer 2 are both polyethylene terephthalate films, and the third substrate layer 3 is a white colored polyethylene terephthalate film. The multilayer composite polyethylene terephthalate base material is formed by compounding a white colored base material and a double-layer PET (polyethylene terephthalate) through an adhesive layer, so that the base material has bearing property, and the flexibility of the base material is reserved.

The first adhesive layer 4 and the second adhesive layer 5 are both composite adhesive layers, and the third adhesive layer 6 is a polyurethane adhesive layer. The polyurethane adhesive layer comprises a multilayer composite polyethylene terephthalate film, and the antistatic polyurethane pressure-sensitive adhesive is coated on the multilayer composite polyethylene terephthalate film. The polyurethane adhesive layer is formed by coating antistatic polyurethane pressure-sensitive adhesive on a multilayer composite polyethylene glycol terephthalate (one or more of lithium bis (trifluoromethyl) sulfonyl imide, polydimethylsiloxane containing polyether modified acrylic acid functional groups, polyether modified hydroxyl functional polydimethylsiloxane solution and bis (trifluoromethyl) sulfonyl imide salt are added into the polyurethane pressure-sensitive adhesive) to realize high air-release property, stable viscosity (low climbing), low pollution, antistatic property and repeated use.

The release layer 7 is a polyethylene terephthalate release film. The polyethylene glycol terephthalate release film has the advantages of special release force selection, stable structure, good weather resistance and capability of ensuring the process feasibility of products.

The above-mentioned polarizer die-cutting process protective film can use the known method for manufacturing double-sided tape. There may be a doctor blade coating, roll coating, gravure coating, slot extrusion coating, spray coating, die coating, etc. In the present invention, slit extrusion coating or blade coating is preferable, and slit extrusion coating is more preferable.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. The utility model provides a processing procedure protection film is used in polaroid cross cutting which characterized in that: including substrate layer, gluing layer and from the type layer, the substrate layer includes first substrate layer, second substrate layer and third substrate layer, gluing layer includes first gluing layer, second gluing layer and third gluing layer, first substrate layer, second substrate layer and third substrate layer and first gluing layer, second gluing layer and third gluing layer set up at the interval in proper order, from the laminating of type layer in third gluing layer bottom surface.

2. The process protection film for die cutting of polarizer according to claim 1, wherein: the first base material layer and the second base material layer are both polyethylene terephthalate films, and the third base material layer is a white colored polyethylene terephthalate film.

3. The process protection film for die cutting of polarizer according to claim 2, wherein: the first adhesive layer and the second adhesive layer are composite adhesive layers, and the third adhesive layer is a polyurethane adhesive layer.

4. The process protection film for die cutting of polarizer according to claim 3, wherein: the polyurethane adhesive layer comprises a multilayer composite polyethylene terephthalate film, and the multilayer composite polyethylene terephthalate film is coated with an antistatic polyurethane pressure-sensitive adhesive.

5. The process protection film for die cutting of polarizer according to claim 3, wherein: the release layer is a polyethylene terephthalate release film.