CN217671574U - High-barrier food packaging bag - Google Patents

Abstract

The utility model belongs to the technical field of the wrapping bag, concretely relates to high resistant separates food package bag, include the bag body that is formed by the heat-seal of complex film, the complex film is by outer to interior skin, barrier layer and inlayer of including in order, the barrier layer is by outer to interior outer high resistant separates aluminized film layer, first adhesive layer, aluminium foil layer, second adhesive layer and interior high resistant separate aluminized film layer, first adhesive layer and second adhesive layer are anti ultraviolet layer. The utility model discloses in, utilize first adhesive layer and second adhesive layer to realize taking place the friction and damage between outer high resistant separates aluminized film layer, aluminium foil layer and the interior high resistant separates aluminized film layer's restraint to outer high resistant separate aluminized film layer, aluminium foil layer and interior high resistant separate aluminized film layer, improve the life of wrapping bag. In addition, the first adhesive layer and the second adhesive layer can effectively block outside ultraviolet rays, so that the food is prevented from deteriorating under the irradiation of the ultraviolet rays, the shelf life of the food is prolonged, and the waste of the food is reduced.

Description

High-barrier food packaging bag

Technical Field

The utility model belongs to the technical field of the wrapping bag, concretely relates to high resistant separates food package bag.

Background

The existing food packaging bag is usually formed by heat sealing of two composite films, each composite film adopts an aluminized film as a high-barrier film, so that the food packaging bag has moisture and gas barrier properties by utilizing the air and water permeation prevention properties of the aluminized film. However, the barrier property of a single aluminized film is not ideal, so in order to improve the moisture and gas barrier properties of the packaging bag, a barrier layer is formed by combining two layers of high-barrier aluminized films and an aluminum foil, and the aluminum foil is arranged between the two layers of high-barrier aluminized films. However, in the above barrier layer, no effective constraint method is adopted between the high-barrier aluminum-plated film and the aluminum foil, and during the use process, friction is generated between the high-barrier aluminum-plated film and the aluminum foil, which easily causes a damage problem, thereby affecting the moisture and air resistance of the packaging bag.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high resistant separates food package bag to solve between high resistant separates aluminized film and the aluminium foil easy damaged problem because of the friction.

In order to achieve the above purpose, the utility model discloses a scheme does: high resistant separates food package bag includes the bag body that is formed by the heat-seal of complex film, the complex film is by outer to interior skin, barrier layer and the inlayer of including in order, the barrier layer is by outer to interior outer high resistant separates aluminized film layer, first adhesive layer, aluminium foil layer, second adhesive layer and interior high resistant separate aluminized film layer of including in order, first adhesive layer and second adhesive layer are anti ultraviolet layer.

The working principle and the beneficial effects of the scheme are as follows: in this scheme, utilize first adhesive layer to bond outer high resistant separation aluminized film layer and aluminium foil layer, utilize the second adhesive layer to bond aluminium foil layer and interior high resistant separation aluminized film layer to the realization is to the restraint of barrier layer, avoids taking place the friction and appearing damaged problem between outer high resistant separation aluminized film layer, aluminium foil layer and the interior high resistant separation aluminized film layer, effectively ensures the wet gas barrier performance that hinders of wrapping bag. Moreover, first adhesive layer and second adhesive layer in this scheme all prevent the ultraviolet layer, contain the ultraviolet absorber in it, therefore, first adhesive layer and second adhesive layer can absorb the ultraviolet ray, and then effective separation ultraviolet ray avoids the inside of ultraviolet irradiation wrapping bag to avoid the food in the wrapping bag to suffer ultraviolet irradiation and deteriorate, prolong the shelf life of food, reduce the waste of food.

Optionally, the outer layer comprises an outer BOPA layer and a third adhesive layer in sequence from outside to inside.

In the scheme, BOPA is a short for biaxially oriented nylon film, and the biaxially oriented nylon film has excellent toughness and puncture resistance, excellent smell barrier property and wide application temperature range. In addition, in the scheme, the third adhesive layer is used for bonding the outer BOPA layer and the blocking layer, so that friction between the outer BOPA layer and the blocking layer is avoided. In addition, the adhesive in the third adhesive layer can also be an ultraviolet-proof layer, so that the ultraviolet-proof performance of the packaging bag is improved.

Optionally, the inner layer comprises an inner fourth adhesive layer, an inner BOPA layer, a fifth adhesive layer and a PE layer in sequence from outside to inside.

In the scheme, PE is a polyethylene film for short, namely a food-grade film, and can be used as an inner layer of a packaging bag to ensure food safety. Moreover, in this scheme, utilize the fourth adhesive layer to bond barrier layer and interior BOPA layer, utilize the fifth adhesive layer to bond interior BOPA layer and PE membrane, avoid taking place the friction between interior BOPA layer and the barrier layer, also avoid taking place the friction between interior BOPA layer and the PE layer. In addition, the fourth adhesive layer and the fifth adhesive layer can also be ultraviolet-proof layers, so that the ultraviolet-proof performance of the packaging bag is improved.

Optionally, the left and right both sides of the one end of the bag body all are equipped with easily tears the breach.

In this scheme, easily tear the breach and can be convenient for the consumer and tear the wrapping bag.

Optionally, the internal subassembly of proclaiming oneself that is equipped with of bag, proclaiming oneself the subassembly including locating the sand grip on the inner wall of bag one side and locating the concave strip on the inner wall of bag opposite side, concave strip supplies the sand grip card to go into.

In this scheme, the back is opened to the bag body, and the usable subassembly of proclaiming oneself is sealed the bag body again.

Optionally, all be equipped with the sign line on the both sides face of the bag body, two easy tears breach are connected to the sign line.

In this scheme, the sign line on the bag body can indicate the consumer to tear or cut the bag body along the sign line, avoids proclaiming oneself the subassembly impaired.

Optionally, the identification line comprises a straight segment and a protruding segment.

In this scheme, the consumer tears or cuts the bag body back along the sign line, can form protrudingly on the bag body, so, when the internal food of bag is not eaten up, utilizes to seal the back from the sealing assembly, and the consumer of being convenient for gets and puts the bag body.

Optionally, a through hole is formed in the bag body, and the through hole is located between the protruding section and the self-sealing assembly.

In this scheme, the through-hole on the bag body can be convenient for the consumer to hang the bag body and store, increases the mode of depositing of wrapping bag.

Optionally, four corners of the bag body are rounded chamfers.

In this scheme, the four corners of the bag body are round chamfers, avoid having sharp-pointed angle on the bag body and cut the consumer.

Optionally, the adhesive in the first adhesive layer and the second adhesive layer is a phenyl salicylate-containing polyacrylate adhesive.

In the scheme, the phenyl salicylate is used as an ultraviolet absorbent, so that ultraviolet rays can be well absorbed, and the packaging bag has ultraviolet-proof performance.

Drawings

Fig. 1 is a schematic structural view of a medium-high barrier food packaging bag according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a composite membrane according to a first embodiment of the present invention;

FIG. 3 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;

FIG. 4 is an enlarged view of A in FIG. 3;

fig. 5 is a schematic structural view of a medium-high barrier food packaging bag according to an embodiment of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

the reference numbers in the drawings of the specification include: the bag body comprises a bag body 1, a through hole 101, an outer layer 2, an outer BOPA layer 201, a third adhesive layer 202, a barrier layer 3, an outer high-barrier aluminum-plated film layer 301, a first adhesive layer 302, an aluminum foil layer 303, a second adhesive layer 304, an inner high-barrier aluminum-plated film layer 305, an inner layer 4, a fourth adhesive layer 401, an inner BOPA layer 402, a fifth adhesive layer 403, a PE layer 404, an easy-tear notch 5, a mark line 6, a straight line segment 601, a protruding segment 602, a protruding strip 7 and a concave strip 8.

Example one

This embodiment is substantially as shown in fig. 1 and 2: high resistant separates food package bag, including the bag body 1 that is formed by the heat-seal of complex film, the complex film is from outer to interior including outer 2 in order, barrier layer 3 and inlayer 4, outer 2 is from outer to interior including outer BOPA layer 201 and third adhesive layer 202 in order, barrier layer 3 is from outer to interior including outer high resistant separates aluminized film layer 301, first adhesive layer 302, aluminium foil layer 303, second adhesive layer 304 and interior high resistant separates aluminized film layer 305 in order, inlayer 4 is from outer to interior including fourth adhesive layer 401, interior BOPA layer 402, fifth adhesive layer 403 and PE layer 404 in order.

The first adhesive layer 302, the second adhesive layer 304, the third adhesive layer 202, the fourth adhesive layer 401, and the fifth adhesive layer 403 are all ultraviolet-proof layers, and specifically, the adhesive in the first adhesive layer 302, the second adhesive layer 304, the third adhesive layer 202, the fourth adhesive layer 401, and the fifth adhesive layer 403 is a polyacrylate adhesive containing phenyl salicylate.

Wherein, the inner high-barrier aluminum plating film layer 305 and the outer high-barrier aluminum plating film layer 301 are both obtained by evaporating 200 to 900A aluminum layers on a polyolefin or polyester substrate with a thickness of 15 to 35 μm. The aluminum foil layer 303 is a soft aluminum foil having a thickness of 5 to μm.

The preparation method of the composite membrane comprises the following steps: a) Adding an ultraviolet absorbent phenyl salicylate into a polyacrylate adhesive to obtain an adhesive;

b) Flatly laying the PE layer 404, uniformly coating the adhesive in the step a) on the PE layer 404 to form a fifth adhesive layer 403, and drying the fifth adhesive layer 403 to completely volatilize the solvent in the fifth adhesive layer 403;

c) Laying the inner BOPA layer 402 on the fifth adhesive layer 403, uniformly coating the adhesive in the step a) on the inner BOPA layer 402 to form a fourth adhesive layer 401, and drying the fourth adhesive layer 401;

d) Spreading the inner high-barrier aluminum-plated film layer 305 on the fourth adhesive layer 401, uniformly coating the adhesive in the step a) on the inner high-barrier aluminum-plated film layer 305 to form a second adhesive layer 304, and drying the second adhesive layer 304;

e) Spreading the aluminum foil layer 303 on the second adhesive layer 304, uniformly coating the aluminum foil layer 303 with the adhesive in the step a) to form a first adhesive layer 302, and drying the first adhesive layer 302;

f) Spreading the outer high-barrier aluminized film layer 301 on the first adhesive layer 302, uniformly coating the adhesive in the step a) on the outer high-barrier aluminized film layer 301 to form a third adhesive layer 202, and drying the third adhesive layer 202;

h) The outer BOPA layer 201 is laid flat on the third adhesive layer 202, and hot-pressed to melt the first adhesive layer 302, the second adhesive layer 304, the third adhesive layer 202, the fourth adhesive layer 401, and the fifth adhesive layer 403, so that the six layers of the outer BOPA layer 201, the outer high-barrier aluminum-plated film layer 301, the aluminum foil layer 303, the inner high-barrier aluminum-plated film layer 305, the inner BOPA layer 402, and the PE layer 404 are closely adhered to obtain a composite film.

The left and right both sides on the top of the bag body 1 are all provided with easy-tearing notches 5, and the two side surfaces of the bag body 1 are all provided with identification lines 6, wherein the identification lines 6 are dotted lines in the embodiment. The mark line 6 is connected with two easy-tearing gaps 5 to prompt a consumer to tear or cut the bag body 1 according to the mark line 6, so that food in the bag body 1 can be taken out.

In addition, as shown in fig. 3 and 4, a self-sealing assembly is disposed in the bag body 1, the self-sealing assembly includes a protruding strip 7 disposed on one inner sidewall of the bag body 1 and a concave strip 8 disposed on the other inner sidewall of the bag body 1, and the concave strip 8 is used for the protruding strip 7 to be inserted into, so as to seal the bag body 1.

When the bag is used, food is put into the bag body 1, and the opening of the bag body 1 (namely the part of the bag body 1 above the heat-seal self-sealing component) is heat-sealed, so that the food is packaged. During the storage period of the food, the outer high-barrier aluminum-plated film layer 301, the aluminum foil layer 303 and the inner high-barrier aluminum-plated film layer 305 can effectively play a role in moisture and air barrier, effectively block external oxygen and moisture, and prolong the shelf life of the food. The first adhesive layer 302, the second adhesive layer 304, the third adhesive layer 202, the fourth adhesive layer 401, and the fifth adhesive layer 403 can restrain the six layers of the outer BOPA layer 201, the outer high-barrier aluminum-plated film layer 301, the aluminum foil layer 303, the inner high-barrier aluminum-plated film layer 305, the inner BOPA layer 402, and the PE layer 404, prevent the six layers from rubbing against each other and being damaged, and prolong the service life of the packaging bag. Furthermore, the first adhesive layer 302, the second adhesive layer 304, the third adhesive layer 202, the fourth adhesive layer 401, and the fifth adhesive layer 403 can absorb ultraviolet rays, thereby effectively blocking ultraviolet rays, preventing the food in the bag body 1 from being irradiated with ultraviolet rays, and further preventing the food in the bag body 1 from being deteriorated by the ultraviolet rays. Moreover, the five ultraviolet-proof layers in the embodiment can block 99% of ultraviolet rays in the environment, and effectively prolong the shelf life of food.

In addition, after the consumer tears or cuts off the bag body 1 along the easy-to-tear notch 5, only part of the food in the bag body 1 is eaten, at this moment, the consumer can utilize the self-sealing assembly to seal the bag body 1 again, specifically, the convex strip 7 is clamped into the concave strip 8, thereby avoiding wasting food.

Example two

The difference between the present embodiment and the first embodiment is: as shown in fig. 5, in this embodiment, the identification line 6 includes a straight section 601 and a protruding section 602, a through hole 101 is provided on the bag body 1, and the through hole 101 is located between the protruding section 602 and the self-sealing assembly.

In this embodiment, after the consumer tears or cuts off the bag body 1 according to the identification line 6, can form the arch on the top of the bag body 1 to the consumer gets and puts the bag body 1. Moreover, the consumer can hang and store the bag body 1 through the through hole 101 on the bag body 1, and the desk space is not occupied.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the schemes is not described herein. It should be pointed out that to those skilled in the art, without departing from the structure of the present invention, a plurality of modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the utility of the present invention. The descriptions in the embodiments and the like in the specification can be used to explain the contents of the claims.

Claims (9)

1. High resistant separates food package bag, includes the bag body that is formed by the complex film heat-seal, the complex film is by outer to interior including skin, barrier layer and inlayer, its characterized in that in order: the barrier layer comprises an outer high-barrier aluminum-plated film layer, a first adhesive layer, an aluminum foil layer, a second adhesive layer and an inner high-barrier aluminum-plated film layer in sequence from outside to inside, and the first adhesive layer and the second adhesive layer are ultraviolet-proof layers.

2. The high barrier food packaging bag according to claim 1, wherein: the outer layer comprises an outer BOPA layer and a third adhesive layer from outside to inside in sequence.

3. The high barrier food packaging bag according to claim 1, wherein: the inner layer sequentially comprises an inner fourth adhesive layer, an inner BOPA layer, a fifth adhesive layer and a PE layer from outside to inside.

4. The high barrier food packaging bag according to claim 1, wherein: the left and right both sides of the one end of the bag body all are equipped with and easily tear the breach.

5. The high barrier food packaging bag according to claim 4, wherein: the bag is internally provided with a self-sealing assembly, the self-sealing assembly comprises a convex strip arranged on the inner wall of one side of the bag body and a concave strip arranged on the inner wall of the other side of the bag body, and the concave strip is used for the convex strip to be clamped in.

6. The high barrier food packaging bag according to claim 5, wherein: all be equipped with the sign line on the both sides face of the bag body, two easy breachs of connecting are easily torn to the sign line.

7. The high barrier food packaging bag according to claim 6, wherein: the identification line includes a straight segment and a protruding segment.

8. The high barrier food packaging bag according to claim 7, wherein: the bag body is provided with a through hole, and the through hole is positioned between the protruding section and the self-sealing assembly.

9. The high barrier food packaging bag according to claim 1, wherein: the four corners of the bag body are round chamfers.

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