CN208930867U

CN208930867U - A kind of coextruding two-way extension polypropylene self-adhesive foil

Info

Publication number: CN208930867U
Application number: CN201821230307.0U
Authority: CN
Inventors: 杨东
Original assignee: Shandong Shun Kai Composite Material Co Ltd
Current assignee: Shandong Shun Kai Composite Material Co Ltd
Priority date: 2018-08-01
Filing date: 2018-08-01
Publication date: 2019-06-04
Anticipated expiration: 2028-08-01

Abstract

The utility model discloses a kind of coextruding two-way extension polypropylene self-adhesive foils, belong to technical field of polymer materials, including release layer, sandwich layer and self-adhesion function layer, it is characterized in that being inlaid with the anti-sticking grain structure I of PMMA in phenylethylene elastic construction body with the structure type of semi-surrounding, Polypropylene structural body is inlaid with the anti-sticking grain structure II of PMMA with the structure type of semi-surrounding, the release layer, sandwich layer and self-adhesion function layer are coextruded structure, the beneficial effects of the utility model are: the structure type with semi-surrounding being arranged in this full mold is inlaid with the anti-sticking grain structure of PMMA, form matte structure, it is obviously improved adhesion of the self-adhesion function layer to release layer after film crimps, it is alleviated during coiled simultaneously, tension and curvature difference between inside and outside volume, improve thin-film transparent；The anti-sticking grain structure of PMMA replaces traditional inorganic silicon dioxide antitack agent, guarantees that antistick characteristic improves thin-film transparent simultaneously, improves the tack of film.

Description

A kind of coextruding two-way extension polypropylene self-adhesive foil

Technical field:

The utility model belongs to technical field of polymer materials, relate more specifically to a kind of coextruding two-way extension polypropylene from Viscous film.

Background technique:

BOPP is the abbreviation of " Biaxially Oriented Polypropylene ", i.e. bidirectional stretching polypropylene film. The production of BOPP film is polypropylene masterbatch by extruder melting extrusion formation melt, sheet is made by long and narrow head, so Afterwards respectively by longitudinal stretching, cross directional stretch, and through film made of cooling or heat treatment.

Plain edition BOPP self-adhesive film is usually that BOPP and viscose glue coating processing are made, the product on the one hand repeatedly processing Cost increase, and due to BOPP original film timeliness surface variations tension decay, cause coating adhesion poor in the processing of rear road gluing Hidden danger is obtained, and if processing workshop lustration class is inadequate, unreeled with gluing in the process due in the big absorption air of PP material electrostatic Dust granule, film surface forms small flake defect point after gluing.General adhesive transparency is all poor, causes finished product jaundice hair Mist, high-end product are unsatisfactory for harsh demand.

Summary of the invention:

To solve the above problems, overcome the deficiencies in the prior art, the utility model provide it is a kind of thin film mechanics intensity, Superior polypropylene self-adhesive foil in the performances such as the thickness uniformity, wide degree can be effectively solved product mist degree height, the transparency Poor problem.

It is that the utility model solves above-mentioned technical problem the specific technical proposal is: the coextruding two-way extension polypropylene from Viscous film, including release layer, sandwich layer and self-adhesion function layer, it is characterised in that the sandwich layer uses polypropylene material, with a thickness of 15- Self-adhesion function layer is arranged in 30um, the upper surface of sandwich layer, and release layer is arranged in the lower end surface of sandwich layer, and the self-adhesion function layer includes benzene second Alkenes elastic structure, phenylethylene elastic construction body is interior to be inlaid with the anti-sticking grain structure I of PMMA with the structure type of semi-surrounding, The phenylethylene elastic structure with a thickness of 1-4um, the partial size of the anti-sticking grain structure I of PMMA is 3-6um, the release layer Including Polypropylene structural body, Polypropylene structural body is inlaid with the anti-sticking grain structure II of PMMA, PMMA with the structure type of semi-surrounding The partial size of anti-sticking grain structure II be 3-6um, Polypropylene structural body with a thickness of 1-1.5um.

Further, linear low density polyethylene structure is evenly arranged with inside the phenylethylene elastic structure.

Further, the linear low density polyethylene structure and the weight ratio of phenylethylene elastic structure are 100: 0.1-15。

Further, the weight ratio of the phenylethylene elastic structure and the anti-sticking grain structure I of PMMA is 100:1-4.

Further, the external side of the Polypropylene structural is provided with fluorochemical layer.

Further, the weight ratio of the Polypropylene structural body and fluorochemical layer is 100:2-10.

Further, the weight ratio of the Polypropylene structural body and the anti-sticking grain structure II of PMMA is 100:0.5-2.

Further, the release layer, sandwich layer and self-adhesion function layer are coextruded structure.

The beneficial effects of the utility model are: this full mold setting membrane structure be suitable for Lap Technology, setting with semi-surrounding Structure type be inlaid with the anti-sticking grain structure of PMMA, form matte structure, hence it is evident that self-adhesion function layer is right after improving film curling The adhesion of release layer, while tension during coiled, between inside and outside volume and curvature difference are alleviated, improve thin-film transparent Property；The anti-sticking grain structure of PMMA replaces traditional inorganic silicon dioxide antitack agent, guarantees that antistick characteristic improves thin-film transparent simultaneously, mentions The tack of film is risen.

Detailed description of the invention:

Attached drawing 1 is the utility model structure diagram；In attached drawing:

1. release layer, 2. sandwich layers, 3. self-adhesion function layers, 4. linear low density polyethylene structures, 5. phenylethylene elasticity knots The anti-sticking grain structure I of structure body, 6.PMMA, 7. Polypropylene structural bodies, the anti-sticking grain structure II of 8.PMMA, 9. fluorochemical layers.

Specific embodiment:

To keep the purposes, technical schemes and advantages of the utility model implementation clearer, 1 is more complete with reference to the drawings Describe to face.In the description to the utility model, it is to be understood that term " center ", "upper", "lower", "left", "right", The orientation or positional relationship of the instructions such as " rear ", " lower-left ", " upper right ", "outside" is to be based on the orientation or positional relationship shown in the drawings, It is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must have Specific orientation is constructed and operated in a specific orientation, therefore should not be understood as the limitation to scope of protection of the utility model.This Outside, term " first ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

Specific embodiment of the present utility model: the coextruding two-way extension polypropylene self-adhesive foil, including release layer 1, sandwich layer 2 and self-adhesion function layer 3, it is characterised in that the sandwich layer 2 uses polypropylene material, with a thickness of 15-30um, sandwich layer 2 Self-adhesion function layer 3 is arranged in upper surface, and release layer 1 is arranged in the lower end surface of sandwich layer 2, and the self-adhesion function layer 3 includes phenylethylene bullet Property structural body 5, the anti-sticking grain structure I 6 of PMMA is inlaid with the structure type of semi-surrounding in phenylethylene elastic structure 5, institute State phenylethylene elastic structure 5 with a thickness of 1-4um, the partial size of the anti-sticking grain structure I 6 of PMMA is 3-6um, described release Layer 1 includes Polypropylene structural body 7, and Polypropylene structural body 7 is inlaid with the anti-sticking grain structure II of PMMA with the structure type of semi-surrounding The partial size of 8, PMMA anti-sticking grain structures II 8 be 3-6um, Polypropylene structural body 7 with a thickness of 1-1.5um.

Further, linear low density polyethylene structure is evenly arranged with inside the phenylethylene elastic structure 5 4。

Further, the linear low density polyethylene structure 4 and the weight ratio of phenylethylene elastic structure 5 are 100:0.1-15。

Further, the weight ratio of the phenylethylene elastic structure 5 and the anti-sticking grain structure I 6 of PMMA is 100:1- 4。

Further, fluorochemical layer 9 is provided on the outside of the Polypropylene structural body 7.

Further, the weight ratio of the Polypropylene structural body 7 and fluorochemical layer 9 is 100:2-10.

Further, the Polypropylene structural body 7 with and the weight ratio of the anti-sticking grain structure II 8 of PMMA be 100:0.5- 2。

Further, the release layer 1, sandwich layer 2 and self-adhesion function layer 3 are coextruded structure.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims

1. a kind of coextruding two-way extension polypropylene self-adhesive foil, including release layer (1), sandwich layer (2) and self-adhesion function layer (3), The sandwich layer (2) are characterized in that using polypropylene material, with a thickness of 15-30um, self-adhesion function layer is arranged in the upper surface of sandwich layer (2) (3), release layer (1) is arranged in the lower end surface of sandwich layer (2), and the self-adhesion function layer (3) includes phenylethylene elastic structure (5), The anti-sticking grain structure I (6) of PMMA, the benzene second are inlaid with the structure type of semi-surrounding in phenylethylene elastic structure (5) Alkenes elastic structure (5) with a thickness of 1-4um, the partial size of the anti-sticking grain structure I (6) of PMMA is 3-6um, the release layer It (1) include Polypropylene structural body (7), Polypropylene structural body (7) is inlaid with the anti-sticking particle knot of PMMA with the structure type of semi-surrounding Structure II (8), the partial size of the anti-sticking grain structure II (8) of PMMA are 3-6um, Polypropylene structural body (7) with a thickness of 1-1.5um.

2. coextruding two-way extension polypropylene self-adhesive foil according to claim 1, it is characterised in that the phenylethylene Linear low density polyethylene structure (4) are evenly arranged with inside elastic structure (5).

3. coextruding two-way extension polypropylene self-adhesive foil according to claim 2, it is characterised in that described is linear low close The weight ratio for spending polyethylene structure (4) and phenylethylene elastic structure (5) is 100:0.1-15.

4. coextruding two-way extension polypropylene self-adhesive foil according to claim 2, it is characterised in that the phenylethylene bullet Property structural body (5) and the anti-sticking grain structure I (6) of PMMA weight ratio be 100:1-4.

5. coextruding two-way extension polypropylene self-adhesive foil according to claim 1, it is characterised in that the Polypropylene structural Fluorochemical layer (9) are provided on the outside of body (7).

6. coextruding two-way extension polypropylene self-adhesive foil according to claim 5, it is characterised in that the Polypropylene structural The weight ratio of body (7) and fluorochemical layer (9) is 100:2-10.

7. coextruding two-way extension polypropylene self-adhesive foil according to claim 5, it is characterised in that the Polypropylene structural The weight ratio of body (7) and the anti-sticking grain structure II (8) of PMMA is 100:0.5-2.

8. coextruding two-way extension polypropylene self-adhesive foil described in -7 any one claims according to claim 1, feature It is that the release layer (1), sandwich layer (2) and self-adhesion function layer (3) are coextruded structure.