CN215970537U

CN215970537U - Anti-leakage strip-shaped packaging film

Info

Publication number: CN215970537U
Application number: CN202121777593.4U
Authority: CN
Inventors: 周明; 高保华; 骆艳琼
Original assignee: Guangzhou Tonglimei Rubber & Plastic Packaging Co ltd
Current assignee: Guangzhou Tonglimei Rubber & Plastic Packaging Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-03-08
Anticipated expiration: 2031-07-30

Abstract

The utility model discloses an anti-leakage strip-shaped packaging film which comprises a base layer, a first elastic layer, a blocking layer, a water absorbing layer and a second elastic layer, wherein the first elastic layer is glued to the bottom of the base layer; water absorption holes are uniformly distributed in the middle of the second elastic layer, and water absorption salient points which correspondingly pass through the water absorption holes are arranged on the water absorption layer; first extrusion salient points which are distributed closely are symmetrically arranged at two ends of the first elastic layer, and second extrusion salient points which are distributed closely are symmetrically arranged at two ends of the second elastic layer; through the cooperation of first elastic layer, second elastic layer and barrier layer, realize improving the tensile properties of packaging film, improve the leakproofness after the packing, through the barrier layer, absorb water the layer and absorb water the cooperation of bump, realize the active absorption weeping, delay the weeping infiltration, avoid the direct infiltration of weeping and flow out the membrane outside.

Description

Anti-leakage strip-shaped packaging film

Technical Field

The utility model relates to an anti-leakage strip-shaped packaging film.

Background

The winding packaging film is called a stretching film and a heat shrinkage film, and the PVC winding film is produced by taking PVC as a base material and DOA as a plasticizer at home at first and has self-adhesion function. Due to environmental protection problems, high cost (compared with PE, the specific gravity is large, the unit packaging area is small), poor stretchability and the like, PE stretch films are gradually eliminated when being produced in 1994-1995 at home. The PE stretch film uses EVA as self-adhesive material, but has high cost and taste, and PI B and VLDPE as self-adhesive material are developed later, and the base material mainly uses LLDPE, including C4, C6, C8 and Metallocene PE (MPE).

The existing winding packaging film is easy to cause internal body fluid leakage or liquid formation when packaging fruits, beverages and other foods, and after the general packaging film is packaged, the film is not tightly attached to the film, and gaps are large, so that the internal liquid is easy to quickly leak out, and pollution and odor are caused.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention aims to provide a leakproof strip packaging film with active leakage absorption, leakage delay and good sealing performance.

In order to solve the technical problems, the technical scheme of the utility model is as follows: an anti-leakage strip-shaped packaging film comprises a base layer, a first elastic layer, a barrier layer, a water absorbing layer and a second elastic layer, wherein the first elastic layer is glued to the bottom of the base layer; the middle part of the second elastic layer is uniformly distributed with water absorption holes, and the water absorption layer is provided with water absorption salient points correspondingly passing through the water absorption holes.

Preferably, the first elastic layer is symmetrically provided with first extrusion bumps at two ends, wherein the first extrusion bumps are closely distributed at two ends.

Preferably, the two ends of the second elastic layer are symmetrically provided with second extrusion bumps which are closely distributed.

Preferably, the base layer is a linear low density polyethylene film layer.

Preferably, the first elastic layer and the second elastic layer are polyurethane mesh film layers.

Preferably, the barrier layer is a HDPE/SELAR-RB copolymer film.

The technical effects of the utility model are mainly embodied as follows: through the cooperation of first elastic layer, second elastic layer and barrier layer, realize improving the tensile properties of packaging film, improve the leakproofness after the packing, through the barrier layer, absorb water the layer and absorb water the cooperation of bump, realize the active absorption weeping, delay the weeping infiltration, avoid the direct infiltration of weeping and flow out the membrane outside.

Drawings

Fig. 1 is a structural view of a leakage-proof strip packaging film of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.

In the present embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left", "above", "back", "middle", 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 describing the present invention, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a bolt fixing manner, a pin connecting manner, or the like, which is commonly used in the prior art, and therefore, details thereof are not described in the present embodiment.

An antiseep strip packaging film, as shown in figure 1, comprises a base layer 1, wherein the base layer 1 is a linear low-density polyethylene film layer, a first elastic layer 2 which is adhered to the bottom of the base layer 1 is used for improving the elasticity of the packaging film and facilitating the winding of the packaging film, a blocking layer 3 which is fixed to the top of the base layer 1 in a hot-pressing mode is used for blocking liquid and avoiding liquid leakage, a water absorbing layer 4 which is adhered to the blocking layer 3 is used for absorbing liquid leaked in the initial step and caching the liquid by the water absorbing layer 4, so that the liquid is prevented from forming water pressure and increasing the risk of permeation, and a second elastic layer 5 which is adhered to the top of the water absorbing layer 4 is used for improving the elasticity of the packaging film and facilitating the winding of the packaging film; the middle part of the second elastic layer 5 is uniformly distributed with water absorption holes 51, the water absorption layer 4 is provided with water absorption salient points 41 correspondingly passing through the water absorption holes 51 and used for absorbing and transferring the water leakage on the second elastic layer 5 to the water absorption layer 4, and the water absorption rate of the water absorption layer 4 is slowed down, so that the liquid can conveniently permeate and extend in the water absorption layer 4, and the water absorption capacity is improved; the two ends of the first elastic layer 2 are symmetrically provided with first extrusion salient points 21 which are distributed closely, the two ends of the second elastic layer 5 are symmetrically provided with second extrusion salient points 52 which are distributed closely, and the first extrusion salient points 21 and the second extrusion salient points 52 are extruded and stretched in the winding and packaging process, wherein the first extrusion salient points 21 and the second extrusion salient points 52 are in contact with each other before other objects are extruded, so that the first extrusion salient points 21 and the second extrusion salient points 52 are close to each other and compress the two sides of the water absorbing layer 4, and the side surface of the water absorbing layer 4 is prevented from leaking; the first elastic layer 2 and the second elastic layer 5 are polyurethane reticular film layers, and the barrier layer 3 is a HDPE/SELAR-RB copolymer film.

The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.

Claims

1. The utility model provides a antiseep bar packaging film which characterized in that: the water absorption type elastic water absorption device comprises a base layer, a first elastic layer, a blocking layer, a water absorption layer and a second elastic layer, wherein the first elastic layer is glued to the bottom of the base layer; the middle part of the second elastic layer is uniformly distributed with water absorption holes, and the water absorption layer is provided with water absorption salient points correspondingly passing through the water absorption holes.

2. The anti-leakage strip packaging film as claimed in claim 1, wherein: and first extrusion salient points which are distributed closely are symmetrically arranged at two ends of the first elastic layer.

3. The anti-leakage strip packaging film as claimed in claim 1, wherein: and second extrusion salient points which are distributed closely are symmetrically arranged at two ends of the second elastic layer.

4. The anti-leakage strip packaging film as claimed in claim 1, wherein: the base layer is a linear low-density polyethylene film layer.

5. The anti-leakage strip packaging film as claimed in claim 1, wherein: the first elastic layer and the second elastic layer are polyurethane reticular film layers.

6. The anti-leakage strip packaging film as claimed in claim 1, wherein: the barrier layer is an HDPE/SELAR-RB copolymer film.