CN214294840U

CN214294840U - Antibacterial fresh-keeping type plastic film for food

Info

Publication number: CN214294840U
Application number: CN202022571782.8U
Authority: CN
Inventors: 余建仁
Original assignee: Hangzhou Golden Flame Packaging & Multi Color Printing Co ltd
Current assignee: Hangzhou Golden Flame Packaging & Multi Color Printing Co ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-09-28
Anticipated expiration: 2030-11-09

Abstract

The utility model belongs to the material field for food relates to a be used for antibiotic fresh-keeping type plastic film for food, including the film body, the film body includes from interior to exterior the anti oil reservoir in inside that sets up, freshness protection layer, weaving layer and can stereotype anticorrosive isolation layer, the inboard in inside anti oil reservoir has antibiotic layer. The utility model discloses an antibiotic layer, inside anti oil reservoir, fresh-keeping layer, weaving layer and can stereotype anticorrosive isolation layer compound reach long-term antibiotic fresh-keeping effect, and mechanical properties is stronger, has good moulding ability to longer life has.

Description

Antibacterial fresh-keeping type plastic film for food

Technical Field

The utility model belongs to the material field for the food relates to the plastic wrap for food, especially relates to an antibiotic preservation type plastic film for food.

Background

The film for the fresh-keeping food is used for packaging and sealing the food, and the traditional film for the fresh-keeping food is usually made of materials such as LDPE (low-density polyethylene), PVC (polyvinyl chloride) or PVDC (polyvinyl dichloride). Although convenient to use, the products are mostly disposable and are not environment-friendly. At present, an environment-friendly preservation bag made of cotton cloth and beeswax in a composite mode appears on the market, but the air isolation is carried out only by means of the beeswax layer, and the ideal antibacterial preservation effect cannot be achieved.

Disclosure of Invention

The purpose of the application is to provide an antibacterial and fresh-keeping type plastic film for food in order to solve the problems;

in order to achieve the above purpose, the utility model adopts the following technical proposal:

the application creatively provides an antibiotic plastic film for fresh-keeping type food, including the film body, the film body includes the inside anti oil reservoir, freshness protection layer, weaving layer and the anticorrosive isolation layer of can stereotyping that from interior to exterior set up, the inboard of inside anti oil reservoir has antibiotic layer.

In the above-mentioned antibacterial fresh-keeping type plastic film for food, the internal oil-resistant layer is made of aluminum foil.

In the antibacterial and refreshing type plastic film for food, the refreshing layer is made of low-density polyethylene, polylactic acid or nylon.

In the above antibacterial and refreshing type plastic film for food, the woven layer is made of cotton cloth or non-woven fabric.

In the antibacterial and refreshing plastic film for food, the shapeable antiseptic isolation layer is made of beeswax.

In the antibacterial and refreshing type plastic film for food, the film body is provided with point breaking lines at intervals, the point breaking lines are formed by a plurality of point breaking holes which are arranged in a linear array manner at the same position of the internal oil-resistant layer, the refreshing layer and the weaving layer, and the shapeable anticorrosive isolation layer covers the point breaking holes.

In the antibacterial and fresh-keeping type plastic film for food, the antibacterial layer is an antibacterial coating.

In the antibacterial and fresh-keeping type plastic film for food, the internal oil-resistant layer and the fresh-keeping layer are adhered through the first adhesive layer; the woven layer and the fresh-keeping layer are bonded through the second bonding layer.

In foretell antibiotic fresh-keeping type plastic film for food, the weaving layer includes that cloth is woven to first weaving cloth and second, the square check cavity that rectangular array arranged has between cloth is woven to first weaving cloth and second, it has dampproofing granule to fill in the square check cavity.

In the antibacterial and fresh-keeping type plastic film for food, the moisture-proof particles are bamboo charcoal moisture-proof particles.

Compared with the prior art, the utility model has the advantages of:

1) the utility model discloses an antibiotic layer, inside anti oil reservoir, fresh-keeping layer, weaving layer and can stereotype anticorrosive isolation layer compound reach long-term antibiotic fresh-keeping effect, and mechanical properties is stronger, has good moulding ability to longer life has.

2) The utility model discloses can be applied to long-term sealing of food container and keep, also can fold and carry out the food bag as packaging structure.

3) The utility model also provides a point broken line structure to this product characteristics, the size of the film of being convenient for is tailor to the point broken line position that does not have the requirement of tailorring still has the effect of isolated air.

4) In one embodiment, a film structure with a moisture-proof function is further provided, moisture-proof particles are added in the woven layer to further enhance the moisture-proof effect, dry goods or nut food is easy to preserve, and the fresh-keeping life of the food is prolonged.

Drawings

Fig. 1 is a partial structural view of a film body provided in the present application.

Fig. 2 is a sectional structure view of a film body provided in the present application.

FIG. 3 is a cross-sectional view of a film body at a point cut-off location provided herein.

Fig. 4 is a cross-sectional structural view of another film body provided by the present application.

In the figure, a film body 1, a point breaking line 10, a point breaking hole 101, an internal oil-resistant layer 11, a fresh-keeping layer 12, a woven layer 13, a first woven cloth 131, a second woven cloth 132, a settable antiseptic isolation layer 14, an antibacterial layer 15, a first adhesive layer 16, a second adhesive layer 17 and moisture-proof particles 18.

Detailed Description

Further illustrated by the following specific examples;

example one

As shown in fig. 1, the plastic film for antibacterial and fresh-keeping food comprises a film body 1, wherein the film body 1 comprises an internal oil-resistant layer 11, a fresh-keeping layer 12, a woven layer 13 and a shapeable antiseptic isolation layer 14 which are arranged from inside to outside, and an antibacterial layer 15 is arranged on the inner side of the internal oil-resistant layer 11. The utility model discloses an antibiotic layer 15, inside anti oil reservoir 11, fresh-keeping layer 12, weaving layer 13 and can stereotype anticorrosive isolation layer 14 compound reach long-term antibiotic fresh-keeping effect, and mechanical properties is stronger, has good moulding ability to longer life has.

Specifically, the inner oil-repellent layer 11 is made of aluminum foil. The inner oil-repellent layer 11 has a sealing property, high oil-repellent property, and prevents oil exudation of food. And has a certain shaping effect.

The inner side surface of the inner oil-resistant layer 11 is coated with an antibacterial layer 15, the antibacterial layer 15 is formed by an antibacterial coating, in this embodiment, the antibacterial coating is a silver nano metal antibacterial coating, and the specific preparation method thereof is specifically disclosed and explained in a chinese patent with patent number CN200710016018.0, namely a preparation method and application of a silver nano metal antibacterial coating, and is not described herein again. Of course, other coatings with antimicrobial functions may be used in other embodiments of the present application. Thereby playing an antibacterial role for the food enclosed inside.

The fresh-keeping layer 12 is a film structure made of low-density polyethylene, polylactic acid or nylon by extrusion. On one hand, the toughness of the film is increased, and on the other hand, the film can effectively play a role in keeping fresh as an intermediate layer.

The woven layer 13 is made of cotton cloth or non-woven fabric. The cotton is preferably organic cotton, and the non-woven fabrics adopt food level non-woven fabrics, for example food level polypropylene non-woven fabrics for but support design anticorrosive isolation layer 14 and further strengthen mechanical strength such as tensile strength of film, make film body 1 have longer life.

The settable preservative barrier layer 14 is made of beeswax. The beeswax has the effect of thermal deformation, can laminate the container surface under human temperature effect to the reconversion of being convenient for, and the beeswax can be isolated the air to a certain extent and contact with food in getting into the container, has fine isolation air effect in the skin.

The inner oil-resistant layer 11 is adhered to the fresh-keeping layer 12 through a first adhesive layer 16; the woven layer 13 and the freshness retaining layer 12 are bonded by a second adhesive layer 17. The first adhesive layer 16 and the second adhesive layer 17 serve to adhere the upper and lower layers, and for example, a commercially available food grade silicone glue may be used.

As shown in fig. 1, 2 and 3, the film body 1 may be sold in a roll package or may be sold as a sheet. The film body 1 is provided with point broken lines 10 at intervals, and the point broken lines 10 are composed of a plurality of point broken holes 101 which are processed in a linear array at the same position of the internal oil-resistant layer 11, the fresh-keeping layer 12 and the braided layer 13. Two ends of the point breaking holes 101 of the braided layer 13 are triangular, the triangular tips of the two adjacent point breaking holes 101 are arranged oppositely, and the interval between the two adjacent point breaking holes 101 on the braided layer 13 is not more than 0.3mm, so that the braided layer 13 is not easy to tear. The interval between two adjacent point breaking holes 101 on the internal oil-resistant layer 11 and the fresh-keeping layer 12 is 1-1.5 mm. The spot-breaking hole 101 is a cutting line so that beeswax adheres. The length of the point-breaking holes 101 along the array direction is 2-3mm, wherein the length of the point-breaking holes 101 on the braided layer 13 is larger than that of the point-breaking holes 101 on the internal oil-resistant layer 11 and the freshness-keeping layer 12.

The settable anticorrosion isolation layer 14 covers the spot-broken hole 101. Thus, under the condition that the spot-breaking line 10 of the film body 1 is not torn, the spot-breaking hole 101 is still covered with the settable anticorrosion isolation layer 14, so that the external air is sufficiently isolated.

Example two

This embodiment is substantially the same as the first embodiment, except that:

as shown in fig. 1 and 4, the woven layer 13 includes a first woven cloth 131 and a second woven cloth 132, the first woven cloth 131 and the second woven cloth 132 are connected by sewing or an adhesive to form a mechanism having a rectangular grid-shaped cavity 130 arranged in a rectangular array, and the adhesive may be food-grade silica gel glue commercially available. The sewing or bonding portion between the adjacent two of the tessellated cavities 130 has a width of 3-6 mm.

The lattice-shaped cavities 130 are filled with moisture-proof particles 18. The moisture-proof particles 18 are bamboo charcoal moisture-proof particles. The grain size of the bamboo charcoal moisture-proof particles is 0.5-1 mm. The moisture barrier particles 18 are filled to a thickness of no more than 2 mm. The first woven cloth 131 and the second woven cloth 132 are cotton cloth or non-woven cloth, which is required to be capable of covering the bamboo charcoal moisture-proof particles so as not to leak.

The position of the dot-broken line 10 of the film body 1 is selectively arranged between two rows of the square-lattice-shaped cavities 130 of the woven layer 13.

The weaving layer 13 in this embodiment has increased dampproofing effect, can further strengthen dampproofing effect, easily preserves dry goods or nut class food, makes the fresh-keeping life-span extension of food.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the film body 1, the spot-breaking line 10, the spot-breaking hole 101, the inner oil-resistant layer 11, the freshness-retaining layer 12, the woven layer 13, the first woven cloth 131, the second woven cloth 132, the settable corrosion-resistant isolating layer 14, the antibacterial layer 15, the first adhesive layer 16, the second adhesive layer 17, the moisture-resistant particles 18, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims

1. Antibiotic preservation type plastic film for food, including film body (1), its characterized in that: the film body (1) comprises an internal oil-resistant layer (11), a fresh-keeping layer (12), a woven layer (13) and a shapeable anticorrosive isolation layer (14) which are arranged from inside to outside, and an antibacterial layer (15) is arranged on the inner side of the internal oil-resistant layer (11);

the settable anticorrosion isolation layer (14) is made of beeswax;

the film comprises a film body (1), wherein point breaking lines (10) are arranged on the film body (1) at intervals, the point breaking lines (10) are formed by a plurality of point breaking holes (101) which are arranged in a linear array mode at the same position of an internal oil-resistant layer (11), a fresh-keeping layer (12) and a weaving layer (13), and the settable anticorrosive isolating layer (14) covers the point breaking holes (101).

2. The antibacterial and refreshing type plastic film for food as claimed in claim 1, wherein: the inner oil-resistant layer (11) is made of aluminum foil.

3. The antibacterial and refreshing type plastic film for food as claimed in claim 1, wherein: the fresh-keeping layer (12) is made of low-density polyethylene, polylactic acid or nylon.

4. The antibacterial and refreshing type plastic film for food as claimed in claim 1, wherein: the woven layer (13) is made of cotton cloth or non-woven fabric.

5. The antibacterial and refreshing type plastic film for food as claimed in claim 1, wherein: the antibacterial layer (15) is an antibacterial coating.

6. The antibacterial and refreshing type plastic film for food as claimed in claim 1, wherein: the inner oil-resistant layer (11) is bonded with the fresh-keeping layer (12) through a first bonding layer (16); the woven layer (13) and the fresh-keeping layer (12) are bonded through a second bonding layer (17).

7. The antibacterial and refreshing type plastic film for food as claimed in claim 1, wherein: weaving layer (13) include first cloth (131) of weaving and second cloth (132) of weaving, square check cavity (130) that rectangular array arranged have between first cloth (131) of weaving and second cloth (132), it has dampproofing granule (18) to fill in square check cavity (130).

8. The antibacterial freshness-retaining type plastic film for food according to claim 7, characterized in that: the moisture-proof particles (18) are bamboo charcoal moisture-proof particles.