CN213800886U

CN213800886U - Fresh-keeping box

Info

Publication number: CN213800886U
Application number: CN202022500163.XU
Authority: CN
Inventors: 罗洋德
Original assignee: Zhejiang Zhongbang Plastic Co ltd
Current assignee: Zhejiang Zhongbang Plastic Co ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-07-27
Anticipated expiration: 2030-11-02

Abstract

The utility model belongs to the technical field of the packing, refer in particular to a preservation box, preservation box comprises the fresh-keeping piece, the fresh-keeping piece includes the plastic layer, it forms the PVDC layer to coat PVDC liquid medicine on the plastic layer, the PVDC level is in the inner wall of preservation box. The utility model discloses hinder oxygen nature, hinder moist and choke nature good, the hyposmosis, the separation is effectual, and food is fresh-keeping effectual, can satisfy the long-time fresh-keeping demand of food.

Description

Fresh-keeping box

The technical field is as follows:

the utility model belongs to the technical field of the packing, refer in particular to a preservation box.

Background art:

the plastic packing box formed by the plastic sheets is used for storing food, but the existing plastic sheets have poor barrier property, are easy to permeate oxygen molecules and water molecules, have poor food preservation effect and cannot meet the long-time preservation requirement of the food.

The invention content is as follows:

the utility model aims at providing a preservation box, it hinders oxygen nature, hinders moist and hinder the gas nature good, and the hyposmosis, the separation is effectual, and food is fresh-keeping effectual, can satisfy the long-time fresh-keeping demand of food.

The utility model discloses a realize like this:

one of the purposes of the utility model is to provide a fresh-keeping sheet, including the plastic layer, it forms the PVDC layer to coat with PVDC liquid medicine on the plastic layer.

In one of the above freshness-retaining sheets, the thickness of the PVDC layer 2 is 2 to 3 μm.

In one of the above freshness protection sheets, the plastic layer has a thickness of 0.1 to 0.3 mm.

In the above fresh-keeping sheet, the plastic layer is made of PE, PET, PP, PVC or PS.

Another object of the present invention is to provide a preservation box comprising the above-mentioned preservation sheet, wherein the PVDC layer is located on the inner side wall of the preservation box. The plastic layer forms a plastic box, and PVDC liquid medicine is coated on the inner side wall of the plastic box to form the preservation box.

In the above-mentioned preservation box, the shape of preservation box is hollow cuboid, including bottom plate, apron, left panel, right panel, front panel and rear panel, PVDC layer is located bottom plate upside, apron downside, left panel right side, right panel left side, front panel rear side and rear panel front side.

In the above preservation box, the cover plate is detachably covered on the left panel, the right panel, the front panel and the rear panel to form a sealing structure.

In the above-mentioned preservation box, the shape of preservation box is hollow cylinder, including bottom plate, apron and tube-shape side board, PVDC layer is located bottom plate upside, apron downside, tube-shape side inboard board.

In the above preservation box, the cover plate is detachably covered above the cylindrical side panel to form a sealing structure.

Compared with the prior art, the utility model outstanding advantage is:

the PVDC liquid medicine of the utility model is coated on the plastic layer to form the PVDC layer, and the fresh-keeping sheet consisting of the plastic layer and the PVDC layer has good oxygen resistance, moisture resistance and air resistance, low permeability, good separation effect and good food fresh-keeping effect, and can meet the long-time fresh-keeping requirement of food; the preservation box formed by the preservation sheet has good oxygen resistance, moisture resistance and air resistance, low permeability, good blocking effect and good food preservation effect, and can meet the long-time preservation requirement of food.

Description of the drawings:

FIG. 1 is a cross-sectional view of a freshness protection sheet of the present invention;

fig. 2 is a perspective view of a first embodiment of the present invention;

fig. 3 is a perspective view of a second embodiment of the present invention.

Reference numerals: 1. a plastic layer; 2. a PVDC layer.

The specific implementation mode is as follows:

the invention will now be further described with reference to specific embodiments, with reference to figures 1 to 3:

one of the purposes of the utility model is to provide a fresh-keeping sheet, including plastic layer 1, it forms PVDC layer 2 to have coated PVDC liquid medicine on the plastic layer 1.

The PVDC has strong intermolecular cohesive force and high crystallinity, chlorine atoms in PVDC molecules have hydrophobicity, hydrogen bonds cannot be formed, oxygen molecules and water molecules move in the PVDC molecules, so that the PVDC has excellent oxygen resistance and moisture resistance, and the oxygen resistance is not influenced by the humidity of the surrounding environment. That is, under any temperature or humidity condition, the composite material has excellent capability of blocking water vapor, oxygen, smell and fragrance.

As shown in figure 1, the PVDC liquid medicine is coated on the plastic layer 1 to form the PVDC layer, and the preservation sheet consisting of the plastic layer 1 and the PVDC layer 2 has good oxygen resistance, moisture resistance and air resistance, low permeability, good blocking effect and good food preservation effect, and can meet the long-time preservation requirement of food.

Preferably, the thickness of the PVDC layer 2 is 2 to 3 micrometers. In this example, the thickness of the PVDC layer 2 is 2.5 microns.

Preferably, the thickness of the plastic layer 1 is 0.1 to 0.3 mm. In the present embodiment, the thickness of the plastic layer 1 is 0.2 mm.

Preferably, the plastic layer 1 is made of PE, PET, PP, PVC or PS.

Another object of the present invention is to provide a preservation box composed of the above-mentioned preservation sheet, wherein the PVDC layer 2 is located on the inner side wall of the preservation box. The plastic layer 1 forms a plastic box, and PVDC liquid medicine is coated on the inner side wall of the plastic box to form the preservation box. The utility model discloses a preservation box hinders oxygen nature, hinders moist and choke nature good, hyposmosis, and the separation is effectual, and food is fresh-keeping effectual, can satisfy the long-time fresh-keeping demand of food of preserving in preservation box inside.

The air barrier property of the preservation box is good, the food oxidative deterioration phenomenon can be delayed, the shelf life of the product is greatly prolonged, and meanwhile, the fragrance of the contents can be prevented from being dispersed and the invasion of external bad smell can be prevented; the moisture resistance of the preservation box is good, the phenomena of dehydration and drying of the product and poor taste can be prevented, the packaging prototype can not be damaged due to the water absorption of the product, and the natural loss (weightlessness) of the quantitative product can be prevented; the low permeability of the crisper prevents loss of aroma and does not absorb residual odors and off-notes, which ensures odor integrity.

The first embodiment is as follows: as shown in fig. 2, the shape of the crisper can be a hollow cuboid, which comprises a bottom plate, a cover plate, a left panel, a right panel, a front panel and a back panel, wherein the PVDC layer 2 is located on the upper side of the bottom plate, the lower side of the cover plate, the right side of the left panel, the left side of the right panel, the back side of the front panel and the front side of the back panel. The plastic layer 1 forms a hollow cuboid plastic box, and PVDC liquid medicine is coated on the inner side wall of the plastic box to form the hollow cuboid preservation box.

Furthermore, the cover plate is detachably covered on the left panel, the right panel, the front panel and the rear panel to form a sealing structure.

Example two: as shown in fig. 3, the shape of the crisper can also be a hollow cylinder, which comprises a bottom plate, a cover plate and a cylindrical side plate, wherein the PVDC layer 2 is located on the upper side of the bottom plate, on the lower side of the cover plate and on the inner side of the cylindrical side plate. The plastic layer 1 forms a hollow cylindrical plastic box, and PVDC liquid medicine is coated on the inner side wall of the plastic box to form the hollow cylindrical preservation box.

Furthermore, the cover plate detachable cover is arranged above the cylindrical side panel to form a sealing structure.

The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A crisper, comprising: the preservation box is composed of a preservation sheet, the preservation sheet comprises a plastic layer (1), PVDC liquid medicine is coated on the plastic layer (1) to form a PVDC layer (2), and the PVDC layer (2) is located on the inner side wall of the preservation box.

2. The crisper of claim 1, wherein: the shape of preservation box is hollow cuboid, including bottom plate, apron, left panel, right panel, front panel and rear panel, PVDC layer (2) are located bottom plate upside, apron downside, left panel right side, right panel left side, front panel rear side and rear panel front side.

3. The crisper of claim 2, wherein: the cover plate is detachably covered above the left panel, the right panel, the front panel and the rear panel to form a sealing structure.

4. The crisper of claim 1, wherein: the shape of preservation box is hollow cylinder, including bottom plate, apron and tube-shape side board, PVDC layer (2) are located bottom plate upside, apron downside, tube-shape side inboard board.

5. The crisper of claim 4, wherein: the cover plate is detachably covered above the cylindrical side panel to form a sealing structure.