CN219256649U

CN219256649U - Waterproof release film

Info

Publication number: CN219256649U
Application number: CN202223108880.3U
Authority: CN
Inventors: 钱晓春
Original assignee: Suzhou Meiailun New Material Technology Co ltd
Current assignee: Suzhou Meiailun New Material Technology Co ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-06-27
Anticipated expiration: 2032-11-23

Abstract

The application discloses waterproof type is from type membrane belongs to from type membrane field, including the membrane body, wherein, the membrane body is formed by top layer, intermediate level and inlayer combination, the bottom surface in intermediate level is along its length direction and the equidistant long indent of last semicircle pillar type of pressing respectively, and go up the long indent of semicircle pillar type and go up the intermediate level department intermediate level at semicircle pillar type long indent top and go up the semicircle pillar type and press there is the indentation, the top surface in inlayer is along its length direction and equidistant pressing respectively of width direction have with last semicircle pillar type wide indent and the long indent of last semicircle pillar type assorted down. This application can make the air flow in the passageway through the passageway of length and the ascending cylinder of width direction, has improved waterproof effect, utilizes the passageway of cylinder type simultaneously, can follow the arbitrary direction on four limits and tear the limit as, is convenient for tear the membrane body fast from required laminating thing.

Description

Waterproof release film

Technical Field

The application relates to the field of release films, in particular to a waterproof release film.

Background

The release film is a film with a distinguishing surface energy, and has no viscosity or slight viscosity after being contacted with a specific material under a limited condition, and in order to increase the release force of the plastic film, the plastic film is subjected to plasma treatment, fluorine-coated treatment or silicon (silicone) release agent on the surface layer of the film material in general, so that the release film can show extremely light and stable release force for various different organic pressure sensitive adhesives (such as hot melt adhesives, acrylic adhesives and rubber pressure sensitive adhesives). According to the release force of the release film required by different types, the viscosity of the isolation product adhesive is different, and the release force is correspondingly adjusted, so that the release force is extremely light and stable during stripping.

The existing release film generally adopts a waterproof layer with a waterproof effect on the surface of the release film, but if water vapor corrodes the release film from the side surface of the release film so as to enter the release film, the effect of the inner layer of the release film is easily caused under the long-time corrosion effect, so that the waterproof release film is provided.

Disclosure of Invention

The main aim at of this application provides a waterproof type from type membrane, through the passageway of length and the ascending cylinder type of width, can make the air flow in the passageway inside, improved waterproof effect, utilize the passageway of cylinder type simultaneously, can follow the arbitrary direction on four limits and as tearing the limit, be convenient for tear the membrane body fast from required laminating thing.

In order to achieve the above-mentioned purpose, the application provides a waterproof type is from type membrane, including the membrane body, wherein, the membrane body is formed by top layer, intermediate level and inlayer combination, the bottom surface in intermediate level is along its length direction and the equidistant long indent of last semicircle pillar type of pressing respectively, and go up the long indent of semicircle pillar type and go up the intermediate level department intermediate level at semicircle pillar type long indent top and go up the semicircle pillar type and press there is the indentation, the top surface in inlayer is along its length direction and equidistant pressing respectively with last semicircle pillar type wide indent and the long indent of last semicircle pillar type long indent assorted lower semicircle pillar type.

Preferably, the surface layer is a polyvinyl alcohol film or a PDMS film.

Preferably, the intermediate layer is a waterproof breathable film.

Preferably, the inner layer is formed by mutually attaching a transparent finishing agent layer and a release layer.

Preferably, the release layer is a fluorine release layer or a silicon release layer.

The beneficial point of the application lies in: firstly, a cylindrical channel can be formed along the length direction of a film body by utilizing an upper semi-cylindrical long pressing groove and a lower semi-cylindrical long pressing groove, and meanwhile, the upper semi-cylindrical wide pressing groove and the lower semi-cylindrical wide pressing groove form a cylindrical channel along the width direction of the film body, and the channels are communicated with each other, so that air can flow in the channels, and even if water vapor stays in the film body, the water vapor can be discharged through the circulation of the air, so that the waterproof effect is further improved;

then, can also utilize the channel of cylinder type on the length direction and the channel of cylinder type on the width direction for when tearing the membrane body from required laminating thing, can follow arbitrary direction on four limits and regard as tearing the limit, be convenient for tear the membrane body from required laminating thing fast.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application and to provide a further understanding of the application with regard to the other features, objects and advantages of the application. The drawings of the illustrative embodiments of the present application and their descriptions are for the purpose of illustrating the present application and are not to be construed as unduly limiting the present application. In the drawings:

fig. 1 is an enlarged sectional view of the present utility model.

FIG. 2 is an enlarged schematic view of the connection between the middle layer and the inner layer according to the present utility model.

Fig. 3 is an enlarged schematic view of the structure at a in fig. 1.

In the above figures, 100, a film body; 110. a surface layer; 120. an intermediate layer; 121. indentation; 122. an upper semicircular column type long pressing groove; 123. an upper semi-cylindrical wide pressing groove; 130. an inner layer; 131. a lower semi-cylindrical long pressing groove; 132. a lower semi-cylindrical wide pressing groove; 133. a transparent finish layer; 134. and (5) a release layer.

Detailed Description

In order to enable those skilled in the art to better understand the present application, the following description will make clear and complete descriptions of the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are merely some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present application herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Examples

Referring to fig. 1-3, this embodiment provides a waterproof release film, including film body 100, wherein, film body 100 is formed by top layer 110, intermediate layer 120 and inlayer 130 combination, the bottom surface of intermediate layer 120 is along its length direction and equidistant pressing respectively have last semi-cylindrical wide indent 123 and last semi-cylindrical long indent 122 to go up semi-cylindrical wide indent 123 and the intermediate layer 120 of the intermediate position department at last semi-cylindrical long indent 122 top are pressed respectively and are had indentation 121, the top surface of inlayer 130 along its length direction and equidistant pressing respectively with last semi-cylindrical wide indent 123 and last semi-cylindrical long indent 122 assorted lower semi-cylindrical wide indent 132 and lower semi-cylindrical long indent 131, and the channel that can be a cylinder along the length direction of film body 100 utilizes last semi-cylindrical wide indent 122 and lower semi-cylindrical long indent 131, and can also make the inner channel can be used simultaneously to remove the channel that can make the inner side can be used in the air-stream from the inner side of film body 100 along the length direction through last semi-cylindrical wide indent 123 and lower semi-cylindrical wide indent 132 along the length direction, can also make the inner channel can be further removed from the inner side of the channel of film body along the length direction to the inner side of film body 100, and can make the inner side can be further removed from the channel along the inner side of film body 100 to the side, and can be used as the air stream to the side is further tearing effect.

The surface layer 110 is preferably a polyvinyl alcohol film having a thickness of 20 microns; it has excellent film flexibility, high tensile strength and tear resistance. Elongation at break (%): 350-600, light transmittance (%) >90, can be arbitrarily bent due to its superior flexibility, enhances the flexibility of the composite material, and simultaneously has superior tensile properties allowing elastic recovery after being stretched for a distance. In other embodiments, the surface layer 110 may also be a PDMS film that has the characteristics of temperature resistance, elasticity, high light transmittance, thermo-chemical stability, no silica filler, no toxicity, no odor, physiological inertia, high tear resistance, high elongation, and flexibility; has high elastic elongation at break (%): 300-700, allowing it to recover elastically after stretching for a distance.

The middle layer 120 is a waterproof and breathable film, which has a small surface tension and is not easy to adhere to water and other impurities, such as polytetrafluoroethylene film.

In this embodiment, the inner layer 130 is formed by attaching the transparent finishing agent layer 133 and the release layer 134 to each other, where the transparent finishing agent layer 133 includes water-repellent oil-repellent and hydrophilic groups, and is capable of water-repellent, oil-repellent and anti-fouling, so that the water-repellent and oil-repellent properties of the release film can be effectively ensured.

In this embodiment, the release layer 134 is a fluorine release layer or a silicon release layer.

To sum up:

when using membrane body 100, can tailor membrane body 100 according to the length and the width of required laminating thing through indentation 121, be convenient for cut according to the size of required laminating thing, make membrane body 100 can better each other laminate with required laminating thing, simultaneously in the use, on the one hand through the intermediate level 120 (waterproof ventilated membrane) and the inner layer 130 (transparent finishing agent layer 133) between mutually supporting, can effectively guarantee from the waterproof and the grease proofing performance of type membrane, on the other hand utilize the long indent 122 of semicircle pillar type and the long indent 131 of lower semicircle pillar type can be along the passageway of a cylinder type of membrane body 100 length direction, simultaneously be the passageway of a cylinder type through the wide indent 123 of last semicircle type and the wide indent 132 of lower semicircle type along membrane body 100 width direction, and make intercommunication each other between the passageway, can make the air flow in the passageway inside, even stop in the inside of membrane body 100 also can be discharged through the circulation of air, further increased waterproof effect, can also utilize the passageway that the width on the length direction is upwards to be along with the one side of a cylinder type of film body 100 can be used as the passageway of required to tear away from the quick release from the body on the required side of the body, tear away from the required passageway of cylinder type is convenient for tearing off the body from the body on the side of the direction of the cylinder type of film body 100.

Claims

1. The utility model provides a waterproof type is from type membrane, includes membrane body (100), wherein, membrane body (100) is formed by top layer (110), intermediate level (120) and inlayer (130) combination, its characterized in that, the bottom surface of intermediate level (120) is along its length direction and equidistant pressing respectively have last semicylindrical wide indent (123) and last semicylindrical long indent (122) to it has indentation (121) to go up the intermediate level (120) of semicylindrical wide indent (123) and last semicylindrical long indent (122) top to the intermediate level department intermediate level (120), the top surface of inlayer (130) is along its length direction and equidistant pressing respectively have with last semicylindrical wide indent (123) and last semicylindrical long indent (122) assorted lower semicylindrical wide indent (132) and lower semicylindrical long indent (131) with width direction.

2. The waterproof release film according to claim 1, wherein the surface layer (110) is a polyvinyl alcohol film or a PDMS film.

3. The waterproof release film according to claim 1, wherein the intermediate layer (120) is a waterproof breathable film.

4. The waterproof release film according to claim 1, wherein the inner layer (130) is formed by attaching a transparent finishing agent layer (133) and a release layer (134) to each other.

5. The waterproof release film according to claim 4, wherein the release layer (134) is a fluorine release layer or a silicon release layer.