CN214646498U

CN214646498U - Paper sealed plastic container

Info

Publication number: CN214646498U
Application number: CN202120533801.XU
Authority: CN
Inventors: 杨树鑫
Original assignee: Shantou Haihua Printing Industry Co ltd
Current assignee: Shantou Haihua Printing Industry Co ltd
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2021-11-09
Anticipated expiration: 2031-03-15

Abstract

The utility model discloses a paper seals plastic container, including the vessel and seal the diaphragm, the vessel is by plastic raw materials injection moulding, and the opening border of vessel is equipped with seals the cup edge, and the edge lower surface that seals the diaphragm bonds through annular glue film and seals cup edge last, its characterized in that: the sealing membrane comprises a waterproof coating, a paper layer and a protective layer, wherein the waterproof coating is coated on the lower surface of the paper layer, and the protective layer is coated on the upper surface of the paper layer or the lower surface of the waterproof coating. The paper sealing plastic container has good toughness, moisture resistance and ageing resistance, and is not easy to damage in the process of storage and transportation.

Description

Paper sealed plastic container

Technical Field

The utility model relates to an easily tear lid, in particular to paper and seal plastic container.

Background

With the development of society, people are more and more favored with convenient fast food such as instant noodles, instant rice and the like in order to save time, so that safe, environment-friendly and convenient fast food packaging also becomes a popular field. The current convenient fast food package generally adopts a plastic container with a film seal. However, the toughness of the sealing membrane for the plastic container is not enough, moisture-proof and easy to break, so that when a manufacturer produces the plastic container with a membrane seal, after the sealing membrane is heat-sealed on the opening of the plastic container, a layer of polyester film coated with hot melt adhesive is processed by a gluing machine, and the whole plastic container with the membrane seal is adhered in the polyester film. Although the mode that the polyester film wraps the whole plastic container with the film seal plays a role in protecting the whole plastic container with the film seal, and ensures that the sealing film of the plastic container is not easy to be damaged in the storage and transportation processes, the packaging processing steps are complicated, and time and labor are wasted. Therefore, there is a need for a sealing film material with good toughness, moisture resistance and less breakage for heat-sealing the opening of a plastic container, so that the plastic container with the film sealing can be packaged again without using a polyester film.

Disclosure of Invention

The utility model aims to solve the problem that a paper seals plastic container is provided, this kind of paper seals plastic container and has good toughness, humidity resistance and ageing resistance, is difficult for being destroyed in storage and the transportation.

In order to solve the technical problem, the utility model discloses a technical scheme as follows:

the utility model provides a paper seals plastic container, includes the vessel and seals the diaphragm, and the vessel is by plastic raw materials injection moulding, and the opening border of vessel is equipped with seals the cup edge, and the edge lower surface that seals the diaphragm bonds through annular glue film and seals cup edge, its characterized in that: the sealing membrane comprises a waterproof coating, a paper layer and a protective layer, wherein the waterproof coating is coated on the lower surface of the paper layer, and the protective layer is coated on the upper surface of the paper layer or the lower surface of the waterproof coating.

The paper is a paper type from Japan, and is generally made of fibers of barks of three trees, namely a papermulberry tree, a edgeworthia chrysantha tree and a wild goose bark tree, the fibers of the three barks are fine and smooth, mucus components are more, and the manufactured paper is firm, tough, delicate, attractive, soft, mild and waterproof.

The annular adhesive layer can be made of hot melt adhesive and the like. The hot melt adhesive is a plastic adhesive, the physical state of which changes along with the change of temperature within a certain temperature range, and the chemical property of which is unchanged, is nontoxic and tasteless, and belongs to an environment-friendly chemical product.

The waterproof coating is smooth, waterproof and non-sticky, and the waterproof coating is coated on the lower surface of the paper layer, so that the lower surface of the paper layer can be protected, and food in the container body is prevented from being adhered to the paper layer; the paper layer has the characteristic of water tightness, so that the paper-based sealed plastic container has better moisture resistance and ageing resistance; and a protective layer is coated on the upper surface of the paper layer or the lower surface of the waterproof coating, so that the wear resistance of the sealing membrane can be enhanced, and the quality of the sealing membrane is improved.

As a preferable embodiment of the present invention, the waterproof coating layer is polyethylene resin. The polyethylene is abbreviated as PE and is thermoplastic resin prepared by polymerizing ethylene. Polyethylene is odorless, nontoxic, has a wax-like hand feeling, has excellent low-temperature resistance (good chemical stability, can resist corrosion of most acid and alkali (cannot resist acid with oxidation property), is insoluble in common solvents at normal temperature, and has small water absorption.

As the preferred scheme of the utility model, the protective layer is the coating oil.

For the further preferred scheme of the utility model, the dope is waterproof gloss oil. The waterproof gloss oil has the characteristic of non-hydrophilicity, and can prevent water from being accumulated on the sealing film.

As the preferred proposal of the utility model, a PET layer is compounded in the inner cavity of the container body. The PET layer is glossy, has good transparency and air tightness, is compounded in the inner cavity of the container body in a heat sealing mode, can protect the inner cavity of the container body, and ensures the sealing performance of the container body.

As a further preferred scheme of the utility model, the PET layer is the PET film. Because the rigidity of the PET film (polyethylene terephthalate) is better, the PET film is adopted as the PET layer, so that the container body has better rigidity.

As the preferred scheme of the utility model, be equipped with the handle of two relative settings on the outer border of sealing the diaphragm. When a user wants to move the plastic container and the food in the plastic container, the user only needs to hold the handle with hands, and the plastic container is prevented from being scalded or unstable.

Compared with the prior art, the utility model, have following advantage:

the paper sealing plastic container has good toughness, moisture resistance and ageing resistance, and is not easy to damage in the process of storage and transportation.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;

fig. 2 is a schematic structural view of a sealing membrane in embodiment 1 of the present invention;

fig. 3 is a schematic structural view of a sealing membrane in embodiment 2 of the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Example 1

As shown in fig. 1-2, the paper-based sealed plastic container in this embodiment includes a container body 1 and a sealing film 2, the container body 1 is formed by injection molding of plastic raw materials, a sealing cup rim 11 is disposed on an opening edge of the container body 1, a lower surface of an edge of the sealing film 2 is bonded to the sealing cup rim 11 through an annular adhesive layer 3, the sealing film 2 includes a waterproof coating 21, a paper layer 22 and a protective layer 23, the waterproof coating 21 is coated on a lower surface of the paper layer 22, and the protective layer 23 is coated on a lower surface of the waterproof coating 21.

The annular glue layer 3 can adopt hot melt adhesive and the like. The hot melt adhesive is a plastic adhesive, the physical state of which changes along with the change of temperature within a certain temperature range, and the chemical property of which is unchanged, is nontoxic and tasteless, and belongs to an environment-friendly chemical product.

The waterproof coating 21 is polyethylene resin. The polyethylene is abbreviated as PE and is thermoplastic resin prepared by polymerizing ethylene. Polyethylene is odorless, nontoxic, has a wax-like hand feeling, has excellent low-temperature resistance (good chemical stability, can resist corrosion of most acid and alkali (cannot resist acid with oxidation property), is insoluble in common solvents at normal temperature, and has small water absorption.

The protective layer 23 is waterproof gloss oil. The waterproof gloss oil has the characteristic of non-hydrophilicity, and can prevent water from being accumulated on the sealing membrane 2.

The inner cavity of the container body 1 is compounded with a PET layer 12. The PET layer 12 is glossy, has good transparency and air tightness, and is compounded in the inner cavity of the container body 1 in a heat sealing mode, so that the inner cavity of the container body 1 can be protected, and the sealing performance of the container body 1 is ensured.

The PET layer 12 is a PET film. Since the rigidity of the PET film (polyethylene terephthalate) is high, the container body 1 has high rigidity by using the PET film as the PET layer 12.

Two handles 24 which are arranged oppositely are arranged on the outer edge of the sealing membrane 2. When a user wants to move the plastic container and the food therein, the user only needs to hold the handle 24 with the hand, so as to avoid scalding the hand or holding the unstable plastic container.

The waterproof coating layer 21 is smooth, waterproof and non-sticky, and the waterproof coating layer 21 is coated on the lower surface of the paper layer 22 to protect the lower surface of the paper layer 22 from food in the container body 1 adhering to the paper layer 22; the paper sealing plastic container has better moisture resistance and ageing resistance due to the characteristic of water tightness of the paper layer 22; and a protective layer 23 is coated on the upper surface of the paper layer 22 or the lower surface of the waterproof coating 21, so that the wear resistance of the sealing membrane 2 can be enhanced, and the quality of the sealing membrane 2 can be improved.

Example 2

As shown in fig. 3, the paper-sealed plastic container in this embodiment is different from that in embodiment 1 in that:

the above-mentioned protective layer 23 is coated on the upper surface of the paper layer 22.

In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and all the equivalent or simple changes made according to the structure, the features and the principle of the present invention are included in the protection scope of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a paper seals plastic container, includes the vessel and seals the diaphragm, and the vessel is by plastic raw materials injection moulding, and the opening border of vessel is equipped with seals the cup edge, and the edge lower surface that seals the diaphragm bonds through annular glue film and seals cup edge, its characterized in that: the sealing membrane comprises a waterproof coating, a paper layer and a protective layer, wherein the waterproof coating is coated on the lower surface of the paper layer, and the protective layer is coated on the upper surface of the paper layer or the lower surface of the waterproof coating.

2. The paper-based lidded plastic container of claim 1 wherein: the waterproof coating is polyethylene resin.

3. The paper-based lidded plastic container of claim 1 wherein: the protective layer is coating oil.

4. A paper-based lidded plastic container as claimed in claim 3, wherein: the coating oil is waterproof gloss oil.

5. The paper-based lidded plastic container of claim 1 wherein: and a PET layer is compounded in the inner cavity of the container body.

6. The paper-based lidded plastic container of claim 5 wherein: the PET layer is a PET film.

7. The paper-based lidded plastic container of claim 1 wherein: two handles which are oppositely arranged are arranged on the outer edge of the sealing membrane.