CN215514934U

CN215514934U - Compound moisture-proof gasket attached with PP (polypropylene) breathable film

Info

Publication number: CN215514934U
Application number: CN202120752924.2U
Authority: CN
Inventors: 戴旭强; 姚立
Original assignee: Guangzhou Jiaxu Packaging Material Co ltd
Current assignee: Guangzhou Jiaxu Packaging Material Co ltd
Priority date: 2021-04-14
Filing date: 2021-04-14
Publication date: 2022-01-14
Anticipated expiration: 2031-04-14

Abstract

The utility model discloses a compound moisture-return-preventing gasket attached with a PP (polypropylene) breathable film, and relates to the technical field of packaging materials. The gasket comprises a gasket body, wherein an upper PP breathable film is arranged above the gasket body, a moisture-proof layer is arranged on the lower surface of the upper PP breathable film, a lower PP breathable film is arranged on the lower surface of the moisture-proof layer, a one-way breathable film is arranged on the lower surface of the lower PP breathable film, a wear-resistant layer is arranged on the periphery of the upper surface of the upper PP breathable film, and a sealing ring is arranged on the periphery of the lower surface of the upper PP breathable film, which is positioned on the moisture-proof layer. The sealing ring with the structure that the outer side is inclined towards the middle part extends into the inlet of the bottle, the inlet of the bottle is sealed, the unidirectional breathable films arranged on the surface and the bottom of the sealing ring are used for preventing air in the bottle from leaking to the outside, and the sealing ring made of the rubber-silica gel material has good elasticity and can seal the opening of the bottle more tightly.

Description

Compound moisture-proof gasket attached with PP (polypropylene) breathable film

Technical Field

The utility model belongs to the technical field of packaging materials, and particularly relates to a compound moisture-return-preventing gasket attached with a PP (polypropylene) breathable film.

Background

The gasket is a material made of paper, rubber or copper sheet, placed between two planes to enhance sealing, and a sealing element disposed between the static sealing surfaces to prevent fluid leakage.

In daily life, many fields all can relate to the packing that seals, for example food, cosmetics and medicine field etc, and the kind of gasket that seals has multiple form, to the different packing content, need select different gaskets that seal, the gasket that seals that adopts on the market, use colloidal sol to paste gasket and bottle jar opening mostly, in order to reach the closing cap effect, nevertheless along with the time lapse, can cause gasket and bottle jar opening to drop after the colloidal sol oxidation, and then make the gasket effect reduce, and the material that some gaskets adopted can only prevent that great hydrone from getting into inside the packing, in the great environment of pressure temperature change, its dampproofing and waterproofing effect reduces, and then the article that makes the packing damages.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the related art, the utility model provides a composite moisture-return-preventing gasket attached with a PP (polypropylene) breathable film, so as to overcome the technical problems in the prior related art.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a compound moisture-return-preventing gasket attached with a PP (polypropylene) breathable film, which comprises a gasket body, wherein the upper PP breathable film is arranged above the gasket body, a moisture-proof layer is arranged on the lower surface of the upper PP breathable film, a lower PP breathable film is arranged on the lower surface of the moisture-proof layer, a one-way breathable film is arranged on the lower surface of the lower PP breathable film, a wear-resistant layer is arranged on the periphery of the upper surface of the upper PP breathable film, and a sealing ring is arranged on the periphery of the moisture-proof layer on the lower surface of the upper PP breathable film.

Furthermore, the upper PP breathable film adopts breathable resin mixed by high-density polyethylene as an upper film of the gasket body.

Further, the dampproof course adopts the rubber silica gel material, the dampproof course hug closely in go up the PP ventilated membrane lower surface, down the PP ventilated membrane hug closely in the dampproof course lower surface makes the dampproof course is located go up the PP ventilated membrane with the PP ventilated membrane forms in the intermediate layer down.

Further, the wearing layer paste establish with go up PP ventilated membrane upper surface week side, the wearing layer middle part is cyclic annular structure, the wearing layer cover in go up the edge of PP ventilated membrane and it is just right to go up the PP ventilated membrane seal the inboard region of ring.

Further, seal the ring with go up PP ventilated membrane lower fixed surface connection, seal the ring and adopt the rubber silica gel material, seal the ring outside and be to middle part slope structure, seal the ring and be located PP ventilated membrane bottom down, and wrap up in seal ring outside bottom, one-way ventilated membrane subsides are located seal the ring with the lower surface of PP ventilated membrane down.

The utility model has the following beneficial effects:

when the gasket is used, the sealing ring at the bottom of the gasket body is aligned with the inlet of the bottle, so that the sealing ring completely enters the bottle inlet, the screw cap is screwed on, the wear-resistant layer arranged on the upper peripheral side of the upper PP breathable film is utilized to prevent the damage of the screw cap to the upper surface of the upper PP breathable film when the screw cap is used for sealing the bottle, when the bottle stores articles, the breathable resin mixed by high-density polyethylene is used as the upper layer film of the gasket body, the gasket has excellent heat sealing performance, tear strength, impact strength, puncture resistance and high fluidity, when encountering liquid such as solution and the like, the liquid is prevented from permeating into the bottle, the moisture in the air introduced into the bottle is prevented from entering through the moisture-proof layer arranged between the upper PP breathable film and the lower PP breathable film, the air inside of the bottle is prevented from leaking to the outside through the one-way breathable film arranged on the surface and the bottom of the sealing ring, and the sealing ring made of silica gel material, the rubber silica gel material has good elasticity, and is tighter when the opening of the bottle is sealed. The breathable resin mixed by the high-density polyethylene is used as the upper layer film of the gasket body, has excellent heat sealing performance, tear strength, impact strength, puncture resistance and high fluidity, prevents liquid from permeating into a bottle and a can when encountering liquid such as solution and the like, and can prevent a moisture-proof layer from generating other harmful substances by utilizing the physiological inertia of the silicon rubber in the moisture-proof process; the sealing ring which is of an inclined structure towards the middle part is arranged on the outer side and extends into the bottle inlet to seal the bottle inlet, the surface of the one-way breathable film and the bottom of the one-way breathable film are recycled to prevent air inside the bottle from leaking to the outside, the sealing ring made of the rubber silica gel material is used for having good elasticity, and the sealing of the opening of the bottle is tighter.

Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive work.

FIG. 1 is an overall perspective view of the present invention;

FIG. 2 is a schematic diagram of the overall explosion of the present invention;

FIG. 3 is a plan view of the utility model in cross section in plan view as a whole;

fig. 4 is a partially enlarged view of the point a of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a gasket body; 2. a PP breathable film is arranged; 3. a moisture barrier; 4. a PP breathable film is arranged; 5. a unidirectional breathable film; 6. a wear layer; 7. and (4) sealing rings.

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. All other embodiments obtained by a person skilled in the art without any inventive work based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open", "upper", "lower", "top", "middle", "inner", and the like, indicate positional or orientational relationships and are used merely for convenience in describing the utility model and for simplicity in description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

Referring to fig. 1-4, the utility model relates to a composite moisture-return-preventing gasket attached with a PP breathable film, which comprises a gasket body 1, wherein an upper PP breathable film 2 is arranged above the gasket body 1, a moisture-proof layer 3 is arranged on the lower surface of the upper PP breathable film 2, a lower PP breathable film 4 is arranged on the lower surface of the moisture-proof layer 3, a one-way breathable film 5 is arranged on the lower surface of the lower PP breathable film 4, a wear-resistant layer 6 is arranged on the periphery of the upper surface of the upper PP breathable film 2, and a sealing ring 7 is arranged on the periphery of the lower surface of the upper PP breathable film 2, which is positioned on the periphery of the moisture-proof layer 3.

In one embodiment, for the upper PP breathable film 2, the breathable resin mixed with high density polyethylene is used as the upper film of the gasket body 1 for the upper PP breathable film 2, and the breathable resin mixed with high density polyethylene is used as the upper film of the gasket body 1, so that the gasket has excellent heat sealing performance, tear strength, impact strength, puncture resistance and high fluidity, and can prevent liquid from permeating into a bottle when encountering liquid such as solution.

In an embodiment, to above-mentioned dampproof course 3, dampproof course 3 adopts the rubber silica gel material, dampproof course 3 hugs closely in last PP ventilated membrane 2 lower surface, lower PP ventilated membrane 4 hugs closely in dampproof course 3 lower surface, make dampproof course 3 be located PP ventilated membrane 2 and lower PP ventilated membrane 4 form the intermediate layer, utilize the dampproof course 3 that sets up between last PP ventilated membrane 2 and the lower PP ventilated membrane 4, prevent the entering of the moisture in the air that lets in the jar, the rubber silica gel material that dampproof course 3 adopted, utilize the silicone rubber to have physiological inertia, can be in dampproofing process, avoid dampproof course 3 to produce other harmful substance.

In one embodiment, for the above wear-resistant layer 6, the wear-resistant layer 6 is attached to the periphery of the upper surface of the upper PP breathable film 2, the middle part of the wear-resistant layer 6 is of an annular structure, the wear-resistant layer 6 covers the edge of the upper PP breathable film 2 and the inner side area of the upper PP breathable film 2, which is just opposite to the sealing ring 7, and the wear-resistant layer 6 arranged on the periphery of the upper PP breathable film 2 is used to prevent the screw cap from damaging the upper surface of the upper PP breathable film 2 when the screw cap is used to seal the bottle.

In one embodiment, for the sealing ring 7, the sealing ring 7 is fixedly connected with the lower surface of the upper PP breathable film 2, the sealing ring 7 is made of a rubber silica gel material, the outer side of the sealing ring 7 is in a structure inclined towards the middle, the sealing ring 7 is positioned at the bottom of the lower PP breathable film 4 and wraps the bottom of the outer side of the sealing ring 7, the one-way breathable film 5 is attached to the lower surfaces of the sealing ring 7 and the lower PP breathable film 4, the sealing ring 7 which is in the structure inclined towards the middle is used for extending into the inlet of the bottle, the inlet of the bottle is sealed, the one-way breathable film 5 arranged on the surface and the bottom is used for preventing air inside the bottle from leaking to the outside, the sealing ring 7 made of the rubber silica gel material has good elasticity, and the bottle opening is sealed more tightly.

In conclusion, by means of the above technical solution of the present invention, when in use, the sealing ring 7 at the bottom of the gasket body 1 is aligned with the inlet of the bottle, so that the sealing ring 7 completely enters the bottle inlet, then the screw cap is screwed on, the wear layer 6 disposed around the upper side of the upper PP breathable film 2 is used to prevent the screw cap from damaging the upper surface of the upper PP breathable film 2 when the screw cap is used to seal the bottle, when the bottle stores the article, the breathable resin mixed by the high density polyethylene is used as the upper layer film of the gasket body 1, which has excellent heat sealing performance, tear strength, impact strength, puncture resistance and high fluidity, so as to prevent the liquid from penetrating into the bottle when encountering the liquid such as solution, and prevent the moisture in the air introduced into the bottle from entering through the moisture-proof layer 3 disposed between the upper breathable film 2 and the lower PP breathable film 4, and through the one-way breathable film 5 disposed on the surface and the bottom of the sealing ring 7, prevent the inside air leakage of bottle to the outside to seal ring 7 that the rubber silica gel material was made, the rubber silica gel material has good elasticity, and is tighter when sealing the bottle mouth.

Through above-mentioned technical scheme, 1, the ventilative resin that mixes through high density polyethylene is as the upper strata membrane of gasket body 1, its outstanding heat sealability, tear strength, shock strength, puncture resistance and high mobility, when preventing to meet liquid such as solution, during liquid permeates the bottle, recycle silicon rubber has physiological inertia, can avoid dampproof course 3 to produce other harmful substance.

2. The sealing ring 7 which is of an inclined structure towards the middle part is arranged on the outer side and extends into the bottle inlet to seal the bottle inlet, the surface of the one-way breathable film 5 and the bottom of the one-way breathable film are reused to prevent air inside the bottle from leaking to the outside, the sealing ring 7 made of the rubber silica gel material is used for having good elasticity, and the bottle opening is sealed and sealed more tightly.

In the description of the present specification, reference to the description of "one embodiment," "an example," "a specific example" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended only to help illustrate the utility model. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and its practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides an adhere to compound of PP ventilated membrane and prevent returning damp gasket, includes gasket body (1), its characterized in that: the top of gasket body (1) is provided with PP ventilated membrane (2), it is provided with dampproof course (3) to go up PP ventilated membrane (2) lower surface, dampproof course (3) lower surface is provided with down PP ventilated membrane (4), PP ventilated membrane (4) lower surface is provided with one-way ventilated membrane (5) down, it is provided with wearing layer (6) to go up PP ventilated membrane (2) upper surface week side, it is located to go up PP ventilated membrane (2) lower surface week side of dampproof course (3) is provided with seals ring (7).

2. The composite moisture-proof gasket with attached PP gas-permeable membrane as claimed in claim 1, wherein said upper PP gas-permeable membrane (2) is made of gas-permeable resin mixed by high density polyethylene as the upper membrane of said gasket body (1).

3. The compound moisture-proof gasket attached with the PP breathable film as claimed in claim 1, wherein the moisture-proof layer (3) is made of silicone rubber, the moisture-proof layer (3) is tightly attached to the lower surface of the upper PP breathable film (2), and the lower PP breathable film (4) is tightly attached to the lower surface of the moisture-proof layer (3), so that the moisture-proof layer (3) is located in an interlayer formed by the upper PP breathable film (2) and the lower PP breathable film (4).

4. The composite moisture-proof gasket attached with the PP breathable film as claimed in claim 1, wherein the wear-resistant layer (6) is attached to the upper surface of the upper PP breathable film (2), the middle portion of the wear-resistant layer (6) is of an annular structure, and the wear-resistant layer (6) covers the edge of the upper PP breathable film (2) and the inner side region of the sealing ring (7) opposite to the upper PP breathable film (2).

5. The compound moisture-proof gasket attached with the PP breathable film as claimed in claim 1, wherein the sealing ring (7) is fixedly connected to the lower surface of the upper PP breathable film (2), the sealing ring (7) is made of rubber-silica gel, the outer side of the sealing ring (7) is inclined toward the middle, the sealing ring (7) is located at the bottom of the lower PP breathable film (4) and wraps the bottom of the outer side of the sealing ring (7), and the one-way breathable film (5) is attached to the lower surfaces of the sealing ring (7) and the lower PP breathable film (4).