CN219055578U

CN219055578U - Composite film capable of blocking water vapor

Info

Publication number: CN219055578U
Application number: CN202221646187.9U
Authority: CN
Inventors: 章澄
Original assignee: Nanjing Huhui Packaging Technology Co ltd
Current assignee: Nanjing Huhui Packaging Technology Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2023-05-23
Anticipated expiration: 2032-06-29

Abstract

The utility model discloses a composite membrane capable of blocking water vapor, relates to the technical field of composite membranes, and aims to solve the problems that the environment of the composite membrane is complex, particularly the membrane body is easy to influence in a wet environment, and the water vapor blocking effect cannot be achieved. The membrane body is provided with a membrane, the surface of the membrane is provided with a ventilation layer, the upper surface of the membrane body is provided with a particle layer, and the lower surface of the membrane is provided with an adhesive layer. This can separation water vapor's complex film can be favorable to the function improvement through dividing into two parts of the membrane body and diaphragm with the complex film, and use more nimble, and the membrane body is connected through gluing the layer with the diaphragm, because the membrane body surface is equipped with the particle layer and consequently makes both glue more firm, is equipped with upper and lower both sides first water blocking layer and second water blocking layer in the diaphragm, can effectively play the effect of separation water vapor, and the ventilative layer on diaphragm surface can make the steam that absorbs the diaphragm surface be open state under the environment that has the steam, is favorable to the evaporation of steam to avoid the steam infiltration.

Description

Composite film capable of blocking water vapor

Technical Field

The utility model relates to the technical field of composite films, in particular to a composite film capable of blocking water vapor.

Background

The composite film is a film with a multi-layer structure formed by combining various plastics with paper, metal or other materials through lamination extrusion coating, coextrusion molding and other process technologies, and generally consists of a substrate, a laminating adhesive, a barrier material, a heat sealing material, printing and protective layer coating and the like.

The composite membrane is widely used in the field, so that the environment where the composite membrane is located is complex, particularly the membrane body is easily affected in a wet environment, and the function of water vapor isolation cannot be achieved.

Disclosure of Invention

The utility model aims to provide a composite membrane capable of blocking water vapor, and aims to solve the problems that the prior art brings forward that the environment of the composite membrane is complex, particularly the membrane body is easily affected in a wet environment, and the water vapor blocking effect cannot be achieved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the composite membrane capable of blocking water vapor comprises a membrane body, wherein a membrane is arranged on the membrane body, a breathable layer is arranged on the surface of the membrane, and a particle layer is arranged on the upper surface of the membrane body.

By adopting the technical scheme, the composite membrane is divided into the membrane body and the membrane, which is beneficial to the improvement of functions and more flexible in use.

Further, a first water-resistant layer and a second water-resistant layer are arranged in the diaphragm and are respectively distributed on the upper layer and the lower layer.

Through adopting above-mentioned technical scheme, be equipped with the first water blocking layer of upper and lower both sides and second water blocking layer in the diaphragm, can effectively play the effect of separation steam.

Further, the lower surface of the diaphragm is provided with an adhesive layer, and the second water blocking layer is positioned above the adhesive layer.

Through adopting above-mentioned technical scheme, the membrane body is connected through gluing the layer with the diaphragm, because the membrane body surface is equipped with the granule layer so make both glue and glue more firm.

Further, the particle layer is movably connected with the adhesive layer, and the diaphragm is connected with the diaphragm body through the adhesive layer.

By adopting the technical scheme, the diaphragm is connected with the diaphragm body under the action of the adhesive layer.

Compared with the prior art, the utility model has the beneficial effects that:

1. this can separation steam's complex film can be favorable to the function improvement through dividing into two parts of the complex film body and diaphragm, and uses more in a flexible way, and the body is connected through gluing the layer with the diaphragm, because the body surface is equipped with the particle layer so makes both glue more firm.

2. This can separation water vapor's complex film through be equipped with the first water-blocking layer of upper and lower both sides and second water-blocking layer in the diaphragm, can effectively play separation water vapor's effect, and the ventilative layer on diaphragm surface can be under the environment that has steam, makes the steam that absorbs the diaphragm surface be open state, is favorable to the evaporation of steam to avoid steam infiltration.

Drawings

FIG. 1 is a schematic view of the external structure of the present utility model;

fig. 2 is a schematic cross-sectional structure of the present utility model.

In the figure: 1. a membrane body; 2. a diaphragm; 3. a ventilation layer; 4. a first water blocking layer; 5. a second water blocking layer; 6. an adhesive layer; 7. a particle layer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. 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.

As in fig. 1-2: be equipped with diaphragm 2 on the diaphragm body 1, diaphragm 2 surface is equipped with ventilative layer 3, diaphragm 1 upper surface is equipped with particle layer 7, be equipped with first water-blocking layer 4 and second water-blocking layer 5 in the diaphragm 2, it is two-layer about to distribute respectively, diaphragm 2 lower surface is equipped with glues the layer 6, second water-blocking layer 5 is located glues the layer 6 top, particle layer 7 and glues layer 6 swing joint, diaphragm 2 is connected with diaphragm body 1 through glueing the layer 6, divide into two parts of diaphragm body 1 and diaphragm 2 with the complex film can be favorable to the function to improve, and use more nimble, diaphragm body 1 and diaphragm 2 are connected through glueing layer 6, because diaphragm body 1 surface is equipped with particle layer 7 consequently make both glues more firm, be equipped with first water-blocking layer 4 and second water-blocking layer 5 of upper and lower both sides in diaphragm 2, can effectively play the effect of separation steam.

Working principle: when the composite membrane is required to have the function of isolating water vapor, one surface of the membrane 2 with the adhesive layer 6 is adhered to the particle layer 7 above the membrane body 1, and the two surfaces are adhered more firmly due to the arranged particle layer 7, so that the water vapor isolation function is achieved, the first water blocking layer 4 and the second water blocking layer 5 are arranged in the membrane 2 and can be isolated through two layers, and the ventilation layer 3 on the surface of the membrane 2 can enable the water vapor absorbed on the surface of the membrane 2 to be in an open state in the environment with the water vapor, so that the evaporation of the water vapor is facilitated, and the water vapor permeation is avoided.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a can separate composite film of steam, includes the membrane body (1), its characterized in that: the membrane body (1) is provided with a membrane (2), the surface of the membrane (2) is provided with a ventilation layer (3), and the upper surface of the membrane body (1) is provided with a particle layer (7).

2. A composite film capable of blocking water vapor according to claim 1, wherein: a first water-resistant layer (4) and a second water-resistant layer (5) are arranged in the diaphragm (2) and are respectively distributed on an upper layer and a lower layer.

3. A composite film capable of blocking water vapor according to claim 1, wherein: the lower surface of the diaphragm (2) is provided with an adhesive layer (6), and the second water-resistant layer (5) is positioned above the adhesive layer (6).

4. A composite film capable of blocking water vapor according to claim 1, wherein: the particle layer (7) is movably connected with the adhesive layer (6), and the diaphragm (2) is connected with the diaphragm body (1) through the adhesive layer (6).