CN219114974U

CN219114974U - Tear-resistant polyimide film

Info

Publication number: CN219114974U
Application number: CN202223459509.1U
Authority: CN
Inventors: 胡少平; 陈国华
Original assignee: Wuxi Goto New Material Co ltd
Current assignee: Wuxi Goto New Material Co ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-06-02
Anticipated expiration: 2032-12-22

Abstract

The utility model discloses a tearing-resistant polyimide film which comprises a winding roller and a film body, wherein the film body is wound on the outer side of the winding roller, side tearing-resistant strips are fixedly connected to two sides of the film body, an upper tearing-resistant strip is fixedly connected to the top of each side tearing-resistant strip, the side tearing-resistant strips are fixed with the upper tearing-resistant strips, a lower tearing-resistant strip is fixedly connected to the bottom of each side tearing-resistant strip, the lower tearing-resistant strips are fixed with the side tearing-resistant strips, a plurality of filling holes are formed in the film body, and connecting glue columns are arranged in the filling holes. The utility model not only can protect the side surface of the film body by the cooperation of the upper tear-proof strip, the side tear-proof strip and the lower tear-proof strip, and improve the protective effect of the film body, but also can prevent the film body from static electricity by the anti-static layer, and can avoid the film body from being easily torn due to poor toughness by the anti-tearing layer, thereby prolonging the service life of the film body.

Description

Tear-resistant polyimide film

Technical Field

The utility model relates to the technical field of polyimide films, in particular to a tearing-resistant polyimide film.

Background

Polyimide film is one kind of high temperature resistant insulating material suitable for flexible printed circuit board and various high temperature resistant motor and electric appliance, and is collected with winding roller before being processed into various products.

However, in the process of pulling out the polyimide film from the wind-up roll, the polyimide film is easily torn from the side surface, so that the polyimide film is broken, and the polyimide film is difficult to use after the polyimide film is broken, thereby wasting raw materials.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a tearing-resistant polyimide film.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a polyimide film of anti tearing, includes wind-up roll and film body, film body round joint is in the outside of wind-up roll, the equal fixedly connected with side in both sides of film body prevents tearing the strip, and the side is prevented tearing the top fixedly connected with of strip and is prevented tearing the strip and be fixed mutually with last preventing tearing the strip, the bottom fixedly connected with of side is prevented tearing the strip and is prevented tearing the strip down, and is prevented tearing the strip and is fixed mutually with the side down, a plurality of filling holes have been seted up to the inside of film body, are equipped with the connection glue post in the filling hole, and connect the glue post and prevent tearing the strip down and contact with each other.

As a still further scheme of the utility model, the bottom of the film body is fixedly connected with a protective film.

As a still further proposal of the utility model, the film body comprises a wear-resistant layer, and the upper surface of the wear-resistant layer is fixedly connected with a shading coating.

As a still further scheme of the utility model, the upper surface of the shading coating is fixedly connected with an antistatic layer.

As a still further scheme of the utility model, the upper surface of the antistatic layer is fixedly connected with an adhesive layer.

As a still further scheme of the utility model, the upper surface of the adhesive layer is fixedly connected with a polyimide layer.

As a still further scheme of the utility model, the upper surface of the polyimide layer is fixedly connected with a tearing-resistant layer, and the upper surface of the tearing-resistant layer is fixedly connected with a silica gel layer.

The beneficial effects of the utility model are as follows:

1 through going up tear strip, side tear strip and lower tear strip's cooperation use, can protect the side of film body, connect simultaneously and glue the post and make and go up tear strip and lower tear strip and film body between be connected more stable to avoid the film body to tear the waste that leads to raw and other materials from the side easily, improved the protection effect of film body.

2. Through the cooperation of antistatic backing and wearing layer, antistatic backing makes the film body prevent static, avoids unreeling the film body to produce the static absorption together easily, and wearing layer makes the film body more wear-resisting, has improved the result of use of film body.

3. Through the cooperation of tear-resistant layer and protection film, the toughness of tear-resistant layer messenger film body becomes high, avoids the relatively poor easy being torn of toughness of film body, and the protection film can protect the film body, avoids the film body to be scratched easily and lacerates, has improved the life of film body.

Drawings

FIG. 1 is a schematic perspective view of a tear-resistant polyimide film according to the present utility model;

FIG. 2 is a schematic view of a partially cross-sectional structure of a tear-resistant polyimide film according to the present utility model;

fig. 3 is a schematic diagram of a film exploded structure of a tear-resistant polyimide film according to the present utility model.

In the figure: 1. a film body; 2. a wind-up roll; 3. a protective film; 4. an upper tear-off preventing strip; 5. a side tear strip; 6. a lower tear strip; 7. filling the hole; 8. connecting a rubber column; 9. a silica gel layer; 10. a tear resistant layer; 11. a polyimide layer; 12. an adhesive layer; 13. an antistatic layer; 14. a wear-resistant layer; 15. and (3) a light-shielding coating.

Detailed Description

The following description of the embodiments of the present utility model will be made with reference to the accompanying drawings, in which embodiments of the present utility model are shown, and in which embodiments are shown, by way of illustration, only, and not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, a tearing-resistant polyimide film comprises a wind-up roll 2 and a film body 1, the film body 1 is wound on the outer side of the wind-up roll 2, a side tearing-resistant strip 5 is adhered to two sides of the film body 1, an upper tearing-resistant strip 4 is adhered to the top of the side tearing-resistant strip 5, the side tearing-resistant strip 5 is fixed with the upper tearing-resistant strip 4, a lower tearing-resistant strip 6 is adhered to the bottom of the side tearing-resistant strip 5, the lower tearing-resistant strip 6 is fixed with the side tearing-resistant strip 5, the side tearing-resistant strip 6, the side tearing-resistant strip 5 and the lower tearing-resistant strip 4 can protect the side surface of the film body 1, a plurality of filling holes 7 are formed in the inner side of the film body 1, connecting glue columns 8 are arranged in the filling holes 7, the connecting glue columns 8 are in contact with the upper tearing-resistant strip 4 and the lower tearing-resistant strip 6, and the connecting glue columns 8 enable the upper tearing-resistant strip 4 and the lower tearing-resistant strip 6 to be connected more stably, and the waste of raw materials caused by tearing of the side surfaces of the film body 1 is avoided.

In the utility model, the bottom of the film body 1 is adhered with the protective film 3, the protective film 3 can protect the film body 1, the film body 1 is prevented from being scratched and scratched easily, the film body 1 comprises the wear-resistant layer 14, the wear-resistant layer 14 enables the film body 1 to be more wear-resistant, the upper surface of the wear-resistant layer 14 is adhered with the shading coating 15, the upper surface of the shading coating 15 is adhered with the antistatic layer 13, the film body 1 is prevented from being electrostatically adsorbed together, the upper surface of the antistatic layer 13 is adhered with the viscose layer 12, the upper surface of the viscose layer 12 is adhered with the polyimide layer 11, the upper surface of the polyimide layer 11 is adhered with the anti-tearing layer 10, the toughness of the film body 1 is increased by the anti-tearing layer 10, the poor toughness of the film body 1 is prevented from being torn easily, and the upper surface of the anti-tearing layer 10 is adhered with the silica gel layer 9.

Working principle: when a tearing-resistant polyimide film is needed, the side surfaces of the upper tearing-resistant strip 4, the side tearing-resistant strip 5 and the lower tearing-resistant strip 6 are protected against the side surface of the film body 1, and meanwhile, the connecting glue column 8 enables the upper tearing-resistant strip 4, the lower tearing-resistant strip 6 and the film body 1 to be connected more stably, so that waste of raw materials caused by tearing of the side surface of the film body 1 is avoided, the film body 1 is prevented from being electrostatically charged by the antistatic layer 13, the unreeled film body 1 is prevented from being easily electrostatically adsorbed together, the abrasion-resistant layer 14 enables the film body 1 to be more abrasion-resistant, the tearing-resistant layer 10 enables the toughness of the film body 1 to be high, poor toughness of the film body 1 is prevented from being torn easily, the film body 1 is protected by the protecting film 3, and the film body 1 is prevented from being scratched easily.

Finally, it should be noted that: modifications of the embodiments described in the foregoing will be readily apparent to those skilled in the art, and equivalents may be substituted for elements thereof. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a polyimide film of anti tearing, includes wind-up roll (2) and film body (1), film body (1) round joint is in the outside of wind-up roll (2), a serial communication port, tear strip (5) are prevented to the equal fixedly connected with in both sides of film body (1), tear strip (4) are prevented to the top fixedly connected with of tear strip (5) are prevented to the side, and tear strip (5) are prevented tearing with last tear strip (4) and are fixed mutually, tear strip (6) are prevented tearing under the bottom fixedly connected with of strip (5) are prevented tearing in the side, and tear strip (6) are prevented tearing with the side down and are fixed mutually, a plurality of filling holes (7) have been seted up to the inside of film body (1), are equipped with connecting glue post (8) in filling hole (7), and connect glue post (8) and prevent tearing strip (4) and tear strip (6) are prevented tearing down mutually with going up.

2. The tearing-resistant polyimide film according to claim 1, wherein the bottom of the film body (1) is fixedly connected with a protective film (3).

3. A tear-resistant polyimide film according to claim 1, wherein the film body (1) comprises a wear-resistant layer (14), and a light-shielding coating (15) is fixedly connected to the upper surface of the wear-resistant layer (14).

4. A tear-resistant polyimide film according to claim 3, wherein the upper surface of the light-shielding coating (15) is fixedly connected with an antistatic layer (13).

5. The tearing-resistant polyimide film according to claim 4, wherein an adhesive layer (12) is fixedly connected to the upper surface of the antistatic layer (13).

6. The tear-resistant polyimide film according to claim 5, wherein the polyimide layer (11) is fixedly connected to the upper surface of the adhesive layer (12).

7. The tearing-resistant polyimide film according to claim 6, wherein the upper surface of the polyimide layer (11) is fixedly connected with a tearing-resistant layer (10), and the upper surface of the tearing-resistant layer (10) is fixedly connected with a silica gel layer (9).