CN217363420U

CN217363420U - Halogen-free cover film with slightly-adhered support film easy to punch holes and align

Info

Publication number: CN217363420U
Application number: CN202220009709.8U
Authority: CN
Inventors: 贾彦军
Original assignee: Zhuhai Hongzheng Technology Co ltd
Current assignee: Zhuhai Hongzheng Technology Co ltd
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2022-09-02
Anticipated expiration: 2032-01-05

Abstract

The utility model discloses a halogen-free cover film with a slightly-adhered support film easy to punch holes and align, which comprises a base film and is characterized in that the lower surface of the base film is provided with a first separation layer, the upper surface of the base film is provided with a second separation layer, the lower surface of the second separation layer is fixed with a protective layer corresponding to the base film, the upper surface of the second separation layer is provided with a plurality of positioning strips, and the fixed ends of the positioning strips are fixed at the edge of the second separation layer; when the cover film provided by the scheme is used, the effect of improving the pasting accuracy of the cover film is realized through the mutual matching of all layers, and the phenomenon that the pasting position of the traditional cover film is easy to make mistakes in the pasting process is further solved, so that the time and the energy consumed by repeatedly pasting the cover film for many times by personnel are saved, and the defect that the viscosity of the cover film is reduced due to repeated pasting is further overcome; meanwhile, the cover film provided by the scheme also has a good protection effect, so that the cover film is low in accidental breakage rate when not used.

Description

Halogen-free cover film with slightly-adhered support film easy to punch holes and align

Technical Field

The utility model relates to a cover membrane technical field, especially relate to a glue a little that supports membrane and do not have halogen and cover membrane with easily punch a hole counterpoint.

Background

Flexible printed circuit boards have been widely used in consumer electronic products such as notebook computers, mobile phones, personal digital assistants, and digital cameras, and cover films are widely used for flexible printed circuit boards. The cover film not only can play a role in solder resist, but also can protect the flexible printed circuit board from being corroded by dust, moisture and chemicals, and can reduce the influence of stress in the bending process.

The separating layer is taken off when using to the present cover film to paste on external board surface through the viscose that base film downside surface set up, thereby reach the effect to the panel cover.

After long-time practice, the cover film is directly adhered, so that the cover film cannot be adhered successfully at one time in the process of adhering the cover film to the surface of the board by personnel, namely the personnel are required to be repeatedly adhered, the adhering speed of the cover film is too low, the viscosity of the adhesive on the lower surface of the cover film is reduced in the repeated adhering process of the cover film, and the defect that the cover film falls off from the surface of the board is further caused, so that the production efficiency of the circuit board is influenced; therefore, in order to solve the above technical problems, we propose a halogen-free cover film with a slightly adhesive support film that is easy to punch holes and align.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and providing a halogen-free cover film with a micro-adhesive support film easy to punch holes and align.

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

the halogen-free cover film with the micro-adhesive support film easy to punch and align comprises a base film, wherein a first separation layer is arranged on the lower surface of the base film, a second separation layer is arranged on the upper surface of the base film, and a protective layer is fixed on the lower surface of the second separation layer corresponding to the base film;

the upper surface of second separation layer is equipped with a plurality of location strips, the stiff end of location strip is fixed at the edge of second separation layer, the one end that the stiff end was kept away from to the location strip is the expansion end and is connected with the pad of pasting, the upper surface of pasting the pad is equipped with the viscose.

Preferably, the lower surface of the protective layer is provided with a weak adhesion layer.

Preferably, a stabilizing layer made of polyether amine is fixed on the lower surface of the base film.

Preferably, the lower surface of stabilizer layer is equipped with the heavy adhesion layer, the base film is connected with first separation layer through stabilizer layer and heavy adhesion layer.

Preferably, the lower surface of the first separation layer is hardened.

Preferably, the lower surface of the sticking pad is provided with viscose, and the sticking pad is connected with the second separation layer through the viscose on the lower surface.

Preferably, the upper surface of the sticking pad is stuck with a separation sheet through viscose.

The utility model provides a pair of glue a little and support halogen-free cover membrane of membrane with easily punch a hole counterpoint, beneficial effect lies in: this scheme is in the use, when covering the membrane and need laminating on external panel, the expansion end of personnel pulling location strip, and then the expansion end of location strip pastes in the outside one side of panel through pasting the pad, takes off first separation layer this moment, then pastes the surface at external panel to covering the membrane through the strong adhesion coating.

And then personnel are covering the in-process of membrane to panel laminating, because the expansion end of location strip is fixed in one side through pasting the pad to make the location strip to covering the membrane and have limiting displacement, personnel's accessible location strip promotes the degree of accuracy when covering the membrane and pasting promptly, if: when the final pasting position of the cover film is different from the preset position in the pasting process, the positioning strip is in a loose or inclined state at the moment, and therefore personnel can limit the pasting position of the cover film according to the state of the positioning strip.

Therefore, in the use process of the cover film, the effect of improving the pasting accuracy of the cover film is realized through the mutual matching of all layers, and the phenomenon that the pasting position of the traditional cover film is easy to make mistakes in the pasting process is further solved, so that the time and the energy consumed by repeatedly pasting the cover film for many times by personnel are saved, and the defect of viscosity reduction caused by repeated pasting of the cover film is further overcome; meanwhile, the cover film provided by the scheme also has a good self-protection effect, so that the cover film is low in accidental breakage rate when not used.

Drawings

Fig. 1 is an isometric view of a halogen-free cover film with a slightly adhesive support film that is easy to punch holes and align;

fig. 2 is a schematic structural view of the halogen-free cover film with the micro-adhesive support film easy to punch a hole and align.

In the figure: 1. a base film; 2. a stabilizing layer; 3. a strongly adhesive layer; 4. a first separation layer; 5. a weakly adherent layer; 6. a protective layer; 7. a second separation layer; 8. sticking a pad; 9. separating the sheet; 10. and (6) positioning the strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, a there is not steamed cover membrane of gluing of declining of counterpoint that easily punches a hole, includes base film 1, and the lower surface of base film 1 is equipped with first separation layer 4, and the upper surface of base film 1 is equipped with second separation layer 7, and the lower surface of second separation layer 7 corresponds base film 1 and is fixed with protective layer 6, and the lower surface of protective layer 6 is equipped with weak adhesion coating 5, weak adhesion coating 5's setting for second separation layer 7 and protective layer 6 take off from base film 1 upper surface more easily.

The upper surface of second separation layer 7 is equipped with a plurality of location strip 10, and the stiff end of location strip 10 is fixed at the edge of second separation layer 7, and the one end that the stiff end was kept away from to location strip 10 is the expansion end and is connected with and pastes pad 8, and the upper surface that pastes pad 8 is equipped with the viscose, pastes the setting that fills up 8 upper surface viscose.

The lower fixed surface of base film 1 has the stable layer 2 of polyetheramine material, and the lower surface of stable layer 2 is equipped with adhesion coating 3 by force, and base film 1 is connected with first separation layer 4 through stable layer 2 and adhesion coating 3 by force, and adhesion coating 3's setting by force for viscidity is better between base film 1 and stable layer 2 and the external panel, thereby has avoided covering the phenomenon that the membrane breaks away from the panel surface.

The lower surface of first separation layer 4 carries out the sclerosis, the lower surface of pasting pad 8 is equipped with the viscose, it is connected with second separation layer 7 through the viscose of lower surface to paste pad 8, the upper surface of pasting pad 8 has separation piece 9 through the viscose laminating, it is equipped with the viscose to paste 8 lower surface of pad, make pasting pad 8 fixed laminating when not using at the upper surface of second separation layer 7, play spacing effect promptly to location strip 10, can not make location strip 10 remove at will, and separation piece 9 can protect pasting the viscose of filling up 8 upper surfaces, in order to avoid pasting the viscidity reduction of pad 8.

The use principle and the advantages are as follows: the utility model discloses in the use, when covering the membrane and need laminating when external panel, personnel cover the upper surface that covers at panel to covering the membrane, after covering the membrane position and confirming, personnel take off release sheet 9 to the expansion end of pulling location strip 10, and then the expansion end of location strip 10 pastes one side outside panel through pasting pad 8, take off first separation layer 4 this moment, then cover the membrane and paste the surface at external panel through strong adhesion coating 3.

And then personnel are covering the in-process of membrane to panel laminating, because the expansion end of location strip 10 is fixed in one side through pasting pad 8 to make location strip 10 to cover the membrane and have limiting displacement, personnel's accessible location strip 10 promotes the degree of accuracy when covering the membrane and pasting promptly, if: when the final pasting position of the cover film is different from the preset position in the pasting process, the positioning strip 10 is in a loose or inclined state at the moment, so that personnel can carry out limiting correction on the pasting position of the cover film according to the state of the positioning strip 10.

Further paste after the panel surface when covering the membrane, the personnel take off second separation layer 7, because

protective layer

6 and 7 fixed connection of second separation layer, make protective layer 6 and weak adhesion coating 5 break away from 1 upper surface of base film in step, cover the membrane this moment and just paste the completion, and weak adhesion coating 5's setting, make between protective layer 6 and the base film 1 viscidity weaker, thereby the convenience when protective layer 6 takes off has been promoted, further protective layer 6's setting, can be when covering the membrane and not using, protect base film 1, cover the membrane accident and receive the clashing and colliding with promptly, when extrusion and scratching, protection through second separation layer 7 and protective layer 6 can not receive the damage, thereby the breakage rate of covering the membrane has been reduced.

And because the lower surface of first separation layer 4 carries out hardening process for when the cover film is not used, its lower surface receives the protection of first separation layer 4, thereby further promotion the protection effect to base film 1, reduced the unexpected breakage rate of cover film when not using promptly.

The further setting of the stabilizing layer 2, that is, the polyetheramine has good compatibility with the base film 1 in the using process of the covering film, that is, the flexibility of the whole covering film can be enhanced while the stability of the covering film is maintained, and the covering film can meet the deflection requirement.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The halogen-free cover film with the micro-adhesive support film easy to punch and align comprises a base film (1), and is characterized in that a first separation layer (4) is arranged on the lower surface of the base film (1), a second separation layer (7) is arranged on the upper surface of the base film (1), and a protective layer (6) is fixed on the lower surface of the second separation layer (7) corresponding to the base film (1);

the upper surface of second separation layer (7) is equipped with a plurality of location strip (10), the stiff end of location strip (10) is fixed at the edge of second separation layer (7), the one end that the stiff end was kept away from in location strip (10) is the expansion end and is connected with and pastes pad (8), the upper surface that pastes pad (8) is equipped with the viscose.

2. The halogen-free cover film with the slightly-adhered support film easy to punch and align is characterized in that the lower surface of the protective layer (6) is provided with a weak adhesion layer (5).

3. The halogen-free cover film with the slightly-adhered support film easy to punch and align as claimed in claim 1, wherein the stabilizing layer (2) made of polyetheramine is fixed on the lower surface of the base film (1).

4. The halogen-free cover film with the slightly-adhered support film easy to punch and align is characterized in that the lower surface of the stabilizing layer (2) is provided with a strong adhesion layer (3), and the base film (1) is connected with the first separation layer (4) through the stabilizing layer (2) and the strong adhesion layer (3).

5. The halogen-free cover film with the slightly-adhesive support film easy to punch and align is characterized in that the lower surface of the first separation layer (4) is hardened according to claim 1.

6. The halogen-free cover film with the micro-adhesive support film easy to punch and align as claimed in claim 1, wherein the lower surface of the adhesive pad (8) is provided with an adhesive, and the adhesive pad (8) is connected to the second separation layer (7) through the adhesive on the lower surface.

7. The halogen-free cover film with the micro-adhesive support film easy to punch and align is characterized in that the upper surface of the adhesive pad (8) is adhered with the separation sheet (9) through adhesive.