CN217023642U

CN217023642U - Stretch-resistant heat shrinkable film

Info

Publication number: CN217023642U
Application number: CN202220273187.2U
Authority: CN
Inventors: 邓俊芳; 麦顺燕; 邹锦娟; 梁杰勇; 邓俊苹; 肖芳煊
Original assignee: Foshan Shunde Jina Packaging Products Co ltd
Current assignee: Foshan Shunde Jina Packaging Products Co ltd
Priority date: 2022-02-10
Filing date: 2022-02-10
Publication date: 2022-07-22
Anticipated expiration: 2032-02-10

Abstract

The utility model provides a stretch-resistant heat shrinkable film which comprises a film body, wherein a buffer bulge is arranged on the surface of the film body, a buffer layer is arranged on the inner side of the buffer bulge, a first film body inner layer, a first elastic layer, a first mixed layer, a second elastic layer, a second film body inner layer and an abrasion-resistant layer are fixedly arranged inside the film body, and the first film body inner layer, the first elastic layer, the first mixed layer, the second elastic layer, the second film body inner layer and the abrasion-resistant layer are sequentially and adjacently arranged from top to bottom. The first film body inner layer and the second film body inner layer have more excellent performance than the original film body surface layer homopolymerization or copolymerization olefin, have lower melting point and obvious melting zone, and have good toughness, transparency, hot adhesiveness, heat sealing temperature, low odor and the like.

Description

Stretch-proofing heat shrinkable film

Technical Field

The utility model relates to the technical field of packaging materials, in particular to a stretch-resistant heat shrinkable film.

Background

The food industry is the largest market of heat-shrinkable packages, and heat-shrinkable films are widely applied to packages of various fast food, lactic acid food, beverage, snack food, wine products, agricultural and sideline products, dry food, local specialty products and the like, wherein the heat-shrinkable films are most widely applied to packages of beer.

When beer packaged by the existing heat-shrinkable film is transported by using a vehicle body, when the vehicle body vibrates in the driving process, the buffer effect of the heat-shrinkable film is not good, so that the bottom of a bottle body is easy to vibrate and collide with a carrying plate of the vehicle body, and the bottle body in the heat-shrinkable film is easy to damage due to vibration and collision.

To above-mentioned problem, application number is 202020555281.8's utility model, has provided an anticollision stretch-proofing heat shrink film, and this novel stay cord mechanism and hand carrying pole of being equipped with are convenient for carry the transport to the heat shrink film body that is equipped with the bottle, and stay cord mechanism and hand carrying pole be convenient for with heat shrink film body aggregate erection, are equipped with first buffer film post and second buffer film post, lead to and can prevent that the bottle from receiving the damage.

Above-mentioned utility model provides a set up buffering mode post structure among the membrane body structure, cooperate the inside glass fiber silk layer that sets up, cushion the external force, but this membrane body structure and material are when receiving external force, the external force that the buffering mode post that the surface set up can bear is very limited, and the tensile effect that does not have fine stretch-proofing to the tensile force that produces the membrane body structure in external force, and the glass fiber silk layer of inside setting, when receiving concentrated external force, area of contact's reduction, lead to the pressure reinforcing between external force and the membrane body, it can not reach fine stretch-proofing and anti puncture effect to singly lean on inside glass fiber silk layer, the in-service use effect is not good.

Therefore, a new stretch resistant heat shrinkable film is needed.

SUMMERY OF THE UTILITY MODEL

The purpose of the stretch-resistant heat shrinkable film of the embodiment is achieved by the following specific technical means:

the utility model provides an anti-tensile heat shrinkable film, including the membrane body, the surface of membrane body is provided with the buffering arch, the bellied inboard of buffering is provided with the buffer layer, the inside fixed first membrane body inlayer that is provided with of membrane body, first elastic layer, first mixed layer, the second mixes the layer, the second elastic layer, second membrane body inlayer and abrasionproof layer, first membrane body inlayer, first elastic layer, first mixed layer, the second mixes the layer, the second elastic layer, second membrane body inlayer and abrasionproof layer are adjacent setting from last to bottom in proper order, the whole bottom outermost layer structure that is located the membrane body of abrasionproof layer, be provided with the central layer between first mixed layer and the second mixed layer, first elastic layer and second elastic layer are including the third elastic layer, first mixed layer and second mixed layer all include first fibrous layer and second fibrous layer and third fibrous layer.

Further preferred embodiments: the buffer bulges are arranged in a plurality of groups on the surface layer of the membrane body in a protruding manner and are arranged in a circular protruding manner.

Further preferred embodiments: the buffer layer is arranged at the inner side of the buffer bulge and is a sponge layer.

Further preferred embodiments: the central layer is a glass fiber layer, and the whole central layer is formed by mutually crossing and overlapping two glass fiber layers.

Further preferred embodiments: the first film body inner layer and the second film body inner layer are arranged to be metallocene polyethylene layers and located at the bottom of the film body surface layer, and polyethylene net layers are arranged on the first film body inner layer and the film body surface layer.

Further preferred embodiments: the third elastic layer is provided as a double-layer urethane acrylate-based polymer, and the plasticizer is glycerin.

Further preferred embodiments: the first fiber layer, the second fiber layer and the third fiber layer which are arranged in the first mixed layer and the second mixed layer are respectively arranged as a graphene modified glass fiber layer, a flax fiber layer and a carbon fiber layer.

Has the beneficial effects that:

1. when the stretch-resistant heat shrinkable film is used for packaging or other purposes, the buffer bulges of the built-in buffer layer achieve the effect of buffering and dispersing external force when the film body is subjected to the external force, reduce the external force applied to the film body and enable the film body to have higher recovery capability after being subjected to the external force.

2. The stretch-resistant heat shrinkable film effectively enhances the resistance effect of the film body layer structure to external force through the central layer, and achieves the effect of avoiding over-stretching.

3. Compared with the original homopolymerization or copolymerization olefin of the film surface layer, the first film body inner layer and the second film body inner layer of the stretch-resistant heat shrinkable film have more excellent performance, lower melting point and obvious melting zone, and have good toughness, transparency, hot adhesiveness, heat-sealing temperature, low odor and the like.

4. According to the stretch-resistant heat shrinkable film, the toughness and elasticity of the whole film body structure are enhanced through the first elastic layer and the second elastic layer, and the stretch resistance of the whole film body structure is improved through the first mixed layer and the second mixed layer.

Drawings

Fig. 1 is a plan view of the overall structure of the present invention.

Fig. 2 is an enlarged view of the structure a in fig. 1 according to the present invention.

FIG. 3 is a sectional view of the membrane structure of the present invention.

Fig. 4 is a cross-sectional view of an elastic layer structure of the present invention.

FIG. 5 is a cross-sectional view of a hybrid layer structure of the present invention.

In FIGS. 1-5: the anti-abrasion film comprises a film body 1, a buffer protrusion 2, a buffer layer 3, a first film body inner layer 4, a first elastic layer 5, a first mixed layer 6, a second mixed layer 7, a second elastic layer 8, a second film body inner layer 9, an anti-abrasion layer 10, a central layer 11, a third elastic layer 12, a first fiber layer 13, a second fiber layer 14 and a third limiting layer 15.

Detailed Description

As shown in figures 1 to 5:

the utility model provides an anti-tensile heat shrinkable film, which comprises a film body 1, wherein the surface of the film body 1 is provided with a buffer bulge 2, the inner side of the buffer bulge 2 is provided with a buffer layer 3, the inside of the film body 1 is fixedly provided with a first film body inner layer 4, a first elastic layer 5, a first mixed layer 6, a second mixed layer 7, a second elastic layer 8, a second film body inner layer 9 and an anti-abrasion layer 10, the first film body inner layer 4, first elastic layer 5, first mix layer 6, the second mixes layer 7, second elastic layer 8, second membrane body inlayer 9 and abrasionproof layer 10 are adjacent setting from last to bottom in proper order, abrasionproof layer 10 wholly is located the outermost layer structure of the bottom of membrane body 1, be provided with central layer 11 between first mixed layer 6 and the second mixed layer 7, first elastic layer 5 and second elastic layer 8 are including third elastic layer 12, first mixed layer 6 and second mixed layer 7 all include first fibrous layer 13 and second fibrous layer 14 and third fibrous layer 15.

Wherein, buffer protrusion 2 sets up the multiunit in the surperficial arch of membrane body 1, is circular protruding setting.

Wherein, buffer layer 3 is located the protruding 2 inboard positions of buffering, sets up to the sponge layer, is used for the membrane body to pack or other usage, and through the protruding 2 of buffering of built-in buffer layer 3, when the membrane body 1 receives external force, reach and cushion the effect of dispersion to external force, reduce the external force that the membrane body received, make the membrane body after receiving external force simultaneously, have very fast recovery ability.

Wherein, the centre layer 11 sets up to glass fiber silk layer, and centre layer 11 is whole to be overlapped by two-layer glass fiber layer intercrossing, through centre layer 11, and the effectual resistance effect of reinforcing membrane body layer body structure to external force reaches the effect of avoiding excessive tensile.

The first film body inner layer 4 and the second film body inner layer 9 are arranged to be metallocene polyethylene layers and located at the bottom of the film body surface layer, polyethylene net layers are arranged on the first film body inner layer 4 and the film body surface layer, and the first film body inner layer 4 and the second film body inner layer 9 have more excellent performance than the original homopolymerization or copolymerization olefin of the film body surface layer, have lower melting point and obvious melting zone, and have good toughness, transparency, hot adhesiveness, heat sealing temperature, low odor and the like.

The third elastic layer 12 is a double-layer urethane acrylate-based polymer, and the plasticizer is glycerin, so that the toughness and elasticity of the whole film body structure are enhanced through the first elastic layer 5 and the second elastic layer 8.

The first fiber layer 13, the second fiber layer 14 and the third fiber layer 15 which are arranged in the first mixed layer 6 and the second mixed layer 7 are respectively arranged as a graphene-modified glass fiber layer, a flax fiber layer and a carbon fiber layer, and the tensile resistance of the whole membrane body structure is improved through the first mixed layer 6 and the second mixed layer 7.

The working principle is as follows:

the specific using mode and action of the embodiment, when the film body is used, the buffer bulge 2 arranged at the outermost side and the buffer layer 3 arranged at the inner side firstly buffer and disperse external force, reduce the external force applied to the film body, the inner layer 4 of the film body has more excellent performance than homopolymerization or copolymerization olefin of the surface layer of the original film body, has lower melting point and obvious melting zone, is obviously superior to the traditional polyethylene material in the aspects of toughness, transparency, hot adhesiveness, heat sealing temperature, low odor and the like, simultaneously, the elastic layer 5 arranged at the bottom is matched to enhance the toughness and elasticity of the film body when in use, the mixed layer 6 at the bottom of the elastic layer 5 is matched, wherein the glass fiber, flax fiber and carbon fiber structures arranged in the film body effectively enhance the stability and the support of the external force applied to the film body from the position of the inner layer of the film body, the damage of the film body caused by the external force is avoided, the central layer 11 is arranged in the middle layer structure of the film body, strengthen the external force resisting effect of the layer body structure.

Claims

1. A stretch-resistant heat shrinkable film comprising a film body (1), characterized in that: the surface of the membrane body (1) is provided with a buffer bulge (2), the inner side of the buffer bulge (2) is provided with a buffer layer (3), the interior of the membrane body (1) is fixedly provided with a first membrane body inner layer (4), a first elastic layer (5), a first mixed layer (6), a second mixed layer (7), a second elastic layer (8), a second membrane body inner layer (9) and an abrasion-proof layer (10), the first membrane body inner layer (4), the first elastic layer (5), the first mixed layer (6), the second mixed layer (7), the second elastic layer (8), the second membrane body inner layer (9) and the abrasion-proof layer (10) are sequentially arranged from top to bottom adjacently, the abrasion-proof layer (10) is integrally positioned at the outermost bottom end structure of the membrane body (1), a central layer (11) is arranged between the first mixed layer (6) and the second mixed layer (7), the first elastic layer (5) and the second elastic layer (8) comprise a third elastic layer (12), the first mixed layer (6) and the second mixed layer (7) each comprise a first fiber layer (13), a second fiber layer (14), and a third fiber layer (15).

2. The stretch resistant heat shrink film of claim 1, wherein: the buffer bulges (2) are arranged in a plurality of groups on the surface layer of the membrane body (1) in a protruding mode and are arranged in a circular protruding mode.

3. The stretch resistant heat shrink film of claim 1, wherein: the buffer layer (3) is positioned at the inner side of the buffer bulge (2) and is arranged as a sponge layer.

4. The stretch resistant heat shrink film of claim 1, wherein: the central layer (11) is arranged to be a glass fiber layer, and the whole central layer (11) is formed by mutually crossing and overlapping two glass fiber layers.

5. The stretch resistant heat shrink film of claim 1, wherein: the first film body inner layer (4) and the second film body inner layer (9) are arranged to be metallocene polyethylene layers and located at the bottom of the film body surface layer, and the first film body inner layer (4) and the film body surface layer are provided with polyethylene net layers.

6. The stretch resistant heat shrink film of claim 1, wherein: the third elastic layer (12) is provided as a double layer urethane acrylate based polymer and the plasticizer is glycerol.

7. The stretch resistant heat shrink film of claim 1, wherein: the first fiber layer (13), the second fiber layer (14) and the third fiber layer (15) arranged in the first mixed layer (6) and the second mixed layer (7) are respectively arranged as a graphene modified glass fiber layer, a flax fiber layer and a carbon fiber layer.