CN216373623U

CN216373623U - Biodegradable transparent preservative film

Info

Publication number: CN216373623U
Application number: CN202122869981.1U
Authority: CN
Inventors: 曾兵
Original assignee: Chongqing Meichen New Material Technology Co ltd
Current assignee: Chongqing Meichen New Material Technology Co ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-04-26
Anticipated expiration: 2031-11-22

Abstract

The utility model discloses a biodegradable transparent preservative film, which comprises a base film, wherein a middle film is arranged on the outer surface of the upper end of the base film, an upper film is arranged on the outer surface of the upper end of the middle film, a lower film is arranged on the outer surface of the lower end of the base film, an electrostatic adsorption film is arranged on the outer surface of the lower end of the lower film, and notches are formed in the outer surfaces of two ends of the base film, the middle film, the upper film, the lower film and the electrostatic adsorption film. According to the biodegradable transparent preservative film, the base film, the middle film, the upper film, the lower film, the electrostatic adsorption film and the notch are arranged, so that the preservative film has good safety, is harmless to human bodies, has good degradability, is fully available in high-permeability raw materials, can be regenerated and is environment-friendly, meanwhile, bacterial breeding caused by the preservative film in use is avoided, the safety of food is guaranteed, the device is simple in structure and convenient to operate, and a better use prospect is brought.

Description

Biodegradable transparent preservative film

Technical Field

The utility model relates to the field of preservative films, in particular to a biodegradable transparent preservative film.

Background

The preservative film is a plastic packaging product, is usually prepared by taking ethylene as a master batch through polymerization reaction, is mainly used for occasions such as microwave oven food heating, refrigerator food preservation, fresh and cooked food packaging and the like, is widely applied in the field of food packaging of family life, supermarket stores, hotels and restaurants and industrial production, is divided into a plurality of types according to different materials and plasticizers, and can be suitable for different occasions. The preservative film is favored by people due to the characteristics of convenience, economy and attractiveness, the use requirement of people on the preservative film is higher and higher along with the occurrence of the society, the requirement is nontoxic, the degradability and environmental protection property of the preservative film are emphasized, and the existing preservative film cannot meet the requirements of people.

At present, chinese patent application No. CN201620298618.5 discloses a degradable plastic wrap for packing fruits and vegetables, this utility model though can play the degradation, but it can cause food to remain when using, the security is relatively low, this utility model's plastic wrap does not distinguish the separation to its use face simultaneously, influence its security, and breed the bacterium easily when using, certain adverse effect has been brought for people's use, for this reason, we provide a biodegradable transparent plastic wrap.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a biodegradable transparent preservative film which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a biodegradable's transparent plastic wrap, includes the base film, the upper end surface of base film is provided with the mesolamella, the upper end surface of mesolamella is provided with the epitomia, the lower extreme surface of base film is provided with down the membrane, the lower extreme surface of membrane is provided with the electrostatic absorption membrane down, the both ends surface of base film, mesolamella, epitomia, lower membrane and electrostatic absorption membrane all sets up jaggedly.

Preferably, the outer surface of the upper end of the base membrane is fixedly connected with the outer surface of the lower end of the middle membrane, and the middle membrane is made of polylactic acid.

Preferably, the outer surface of the upper end of the middle membrane is fixedly connected with the outer surface of the lower end of the upper membrane, and the upper membrane is made of polyvinylidene chloride.

Preferably, the outer surface of the lower end of the base film is fixedly connected with the outer surface of the upper end of the lower film, and the lower film is made of chitosan.

Preferably, the outer surface of the lower end of the lower film is detachably connected with the outer surface of the upper end of the electrostatic adsorption film, and the electrostatic adsorption film is made of a one-way food-grade sterile plastic electrostatic film.

Preferably, the notches at the two ends of the base film, the middle film, the upper film and the lower film are formed by slotting the slotting device, and the base film is made of thermoplastic starch plastic.

Compared with the prior art, the utility model has the following beneficial effects: through the arranged base film, the middle film, the upper film, the lower film, the electrostatic adsorption film and the notch, the protective film is separated through the characteristic of the electrostatic adsorption film when in use, the electrostatic adsorption film can distinguish the use surface of the protective film, the lower film is directly contacted with food after separation, the lower film made of chitosan has better compatibility with human organs, higher safety and better degradability, the lower film made of chitosan is contacted with the food and is harmless to human bodies, the use safety of the fresh-keeping film is ensured, the upper film is contacted with air, the upper film made of polyvinylidene chloride has the advantages of moisture resistance, oxygen resistance, moisture resistance, acid and alkali resistance, oil immersion resistance and multiple chemical solvents resistance, can provide outer surface protection for the fresh-keeping film, the service life of the fresh-keeping film is ensured, the fresh-keeping film is cut through the notch according to the use length, and has better safety, harmless to human body, has better degradability and high transparent raw materials source abundant and can regenerate simultaneously, comparatively environmental protection, whole biodegradable transparent plastic wrap simple structure, convenient operation, the effect of using is better for traditional mode.

Drawings

FIG. 1 is a schematic view of the overall structure of a biodegradable transparent plastic wrap according to the present invention;

FIG. 2 is a schematic cross-sectional structure view of a biodegradable transparent plastic wrap of the present invention;

fig. 3 is an enlarged schematic structural view of a in fig. 2 of a biodegradable transparent plastic wrap according to the present invention.

In the figure: 1. a base film; 2. a middle membrane; 3. coating a film; 4. film laying; 5. an electrostatic adsorption film; 6. and (4) a notch.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

as shown in fig. 1, a biodegradable transparent plastic wrap comprises a base film 1, wherein an upper outer surface of the base film 1 is provided with a middle film 2, an upper outer surface of the middle film 2 is provided with an upper film 3, a lower outer surface of the base film 1 is provided with a lower film 4, a lower outer surface of the lower film 4 is provided with an electrostatic adsorption film 5, and notches 6 are respectively arranged on outer surfaces of two ends of the base film 1, the middle film 2, the upper film 3, the lower film 4 and the electrostatic adsorption film 5.

Example two:

on the basis of the first embodiment, as shown in fig. 2 and 3, the outer surface of the upper end of the base film 1 is fixedly connected with the outer surface of the lower end of the middle film 2, the middle film 2 is made of polylactic acid, and the middle film 2 made of polylactic acid has good degradability and high permeability, is abundant in raw material source and can be regenerated, is relatively environment-friendly, and can improve the transparency of the preservative film.

Example three:

on the basis of the first embodiment, as shown in fig. 2 and 3, the outer surface of the upper end of the middle film 2 is fixedly connected with the outer surface of the lower end of the upper film 3, the upper film 3 is made of polyvinylidene chloride, and the upper film 3 made of polyvinylidene chloride has the advantages of moisture resistance, oxygen resistance, moisture resistance, acid and alkali resistance, oil immersion resistance and multiple chemical solvent resistance, can provide outer surface protection for the preservative film, and can ensure the service life of the preservative film.

Example four:

on the basis of the first embodiment, as shown in fig. 2 and 3, the outer surface of the lower end of the base film 1 is fixedly connected with the outer surface of the upper end of the lower film 4, the lower film 4 is made of chitosan, the lower film 4 made of chitosan has better compatibility with human organs, higher safety and better degradability, and the lower film 4 made of chitosan is in contact with food, so that the lower film is harmless to human bodies and ensures the use safety of the preservative film.

Example five:

on the basis of the first embodiment, as shown in fig. 1-3, the outer surface of the lower end of the lower film 4 is detachably connected with the outer surface of the upper end of the electrostatic adsorption film 5, the electrostatic adsorption film 5 is made of a one-way food-grade sterile plastic electrostatic film, the use surface of the preservative film can be distinguished by the one-way food-grade sterile plastic electrostatic film, and meanwhile, the breeding of bacteria can be avoided.

Example six:

on the basis of the first embodiment, the second embodiment and the third embodiment, as shown in fig. 1-3, the notches 6 at two ends of the base film 1, the middle film 2, the upper film 3 and the lower film 4 are formed by slotting through slotting devices, the base film 1 is made of thermoplastic starch plastic, so that the preservative film can be conveniently cut and used when in use, and meanwhile, the base film 1 has better safety and degradability.

The utility model is a biodegradable transparent preservative film, before use, the base film 1, the middle film 2, the upper film 3, the lower film 4, the electrostatic adsorption film 5 and the gap 6 are arranged, when in use, the electrostatic adsorption film 5 is separated according to the characteristics of the electrostatic adsorption film 5, the electrostatic adsorption film 5 can distinguish the use surface of the protective film, the lower film 4 is directly contacted with food after separation, the lower film 4 made of chitosan has better compatibility with human organs, higher safety and better degradability, the lower film 4 made of chitosan is contacted with food, the preservative film is harmless to human body, the use safety of the preservative film is ensured, the upper film 3 is contacted with air, the upper film 3 made of polyvinylidene chloride has the functions of moisture resistance, oxygen resistance, moisture resistance, acid and alkali resistance, oil resistance and multiple chemical solvents resistance, and can provide external surface protection for the preservative film, guarantee the life of plastic wrap, cut out the use through breach 6 to the plastic wrap according to use length, this plastic wrap not only has better security, and is harmless to the people health, has better degradability and high raw materials source of going through simultaneously and abundant and can regenerate, comparatively environmental protection, comparatively practical.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A biodegradable transparent plastic wrap, comprising a base film (1), characterized in that: the utility model discloses a film electrostatic adsorption device, including base film (1), well membrane (2), the upper end surface of well membrane (2) is provided with upper film (3), the lower extreme surface of base film (1) is provided with down membrane (4), the lower extreme surface of membrane (4) is provided with electrostatic adsorption membrane (5) down, breach (6) have all been seted up to the both ends surface of base film (1), well membrane (2), upper film (3), lower membrane (4) and electrostatic adsorption membrane (5).

2. The biodegradable transparent plastic wrap according to claim 1, wherein: the outer surface of the upper end of the base film (1) is fixedly connected with the outer surface of the lower end of the middle film (2), and the middle film (2) is made of polylactic acid.

3. The biodegradable transparent plastic wrap according to claim 1, wherein: the outer surface of the upper end of the middle membrane (2) is fixedly connected with the outer surface of the lower end of the upper membrane (3), and the upper membrane (3) is made of polyvinylidene chloride.

4. The biodegradable transparent plastic wrap according to claim 1, wherein: the outer surface of the lower end of the base film (1) is fixedly connected with the outer surface of the upper end of the lower film (4), and the lower film (4) is made of chitosan.

5. The biodegradable transparent plastic wrap according to claim 1, wherein: the outer surface of the lower end of the lower film (4) is detachably connected with the outer surface of the upper end of the electrostatic adsorption film (5), and the electrostatic adsorption film (5) is made of a one-way food-grade sterile plastic electrostatic film.

6. The biodegradable transparent plastic wrap according to claim 1, wherein: the base film (1), the middle film (2), the upper film (3) and the notches (6) at the two ends of the lower film (4) are formed by slotting the slotting device, and the base film (1) is made of thermoplastic starch plastic.