CN214825541U

CN214825541U - Food packaging bag

Info

Publication number: CN214825541U
Application number: CN202121506224.1U
Authority: CN
Inventors: 计峰; 吉娟; 何松挺; 曾文明; 马治锋; 霍亚芳
Original assignee: Zhejiang Goldstone Packing Co ltd
Current assignee: Zhejiang Goldstone Packing Co ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2021-11-23
Anticipated expiration: 2031-07-02

Abstract

The utility model discloses a food packaging bag, which comprises a front bag wall and a back bag wall, wherein the front bag wall and the back bag wall enclose a food accommodating cavity; the front bag wall is provided with front side edge heat-sealing areas at two sides and a front bottom heat-sealing area at the bottom; the back bag wall is provided with back side edge heat-sealing areas at two sides and a back bottom heat-sealing area at the bottom; the front side edge heat-sealing area and the back side edge heat-sealing area are correspondingly heat-sealed; the front bottom heat-sealing area and the back bottom heat-sealing area are correspondingly heat-sealed; wherein, perforation holes penetrating through the front bag wall and the back bag wall are formed on the side edges of the heat seal, and the periphery of the perforation holes is surrounded by the front bag wall and the back bag wall. The food packaging bag realizes air exhaust in the bag in the heating process, is not easy to expand to generate bag frying, and can be suitable for microwave heating.

Description

Food packaging bag

Technical Field

The utility model relates to a ventilative encapsulation technical field, concretely relates to food package bag.

Background

In life, some fast food can be quickly eaten by using a microwave oven to quickly heat. The reason for the storage and sealing of the common packaging bag is complete sealing, so that the gas in the bag is rapidly expanded after the microblog is heated, and the bag is easy to explode, thereby causing dangerous accidents. The packaging bag must be torn open, the food in the bag can be taken out, and the air pressure container is additionally selected to contain the food in the bag, and then microwave heating is carried out.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a but, direct microwave heating for the food package bag.

The utility model provides a food packaging bag, which comprises a front bag wall and a back bag wall, wherein the front bag wall and the back bag wall enclose a food accommodating cavity; the front bag wall is provided with front side edge heat-sealing areas at two sides and a front bottom heat-sealing area at the bottom; the back bag wall is provided with back side edge heat-sealing areas at two sides and a back bottom heat-sealing area at the bottom; the front side edge heat-sealing area and the back side edge heat-sealing area are correspondingly heat-sealed; the front bottom heat-sealing area and the back bottom heat-sealing area are correspondingly heat-sealed; wherein, the side edges of the heat sealing are provided with through holes penetrating through the front bag wall and the back bag wall.

Optionally, the perforated periphery is surrounded by the front and back bag walls.

Optionally, the front and back bag walls are heat sealed at the perforated periphery.

Optionally, the food packaging bag is made of a BOPP/PET/PE composite film; wherein the BOPP layer faces the outside surface and the PE layer faces the inside surface.

Optionally, the thickness of the BOPP layer is 18-50 μm; the thickness of the PET layer is 7-50 μm.

Optionally, the food packaging bag is made of a PET/BOPA/PE composite film; wherein the PET layer faces the outside surface and the PE layer faces the inside surface.

Optionally, the thickness of the PET layer is 7-50 μm; the thickness of the BOPA layer is 15-30 μm.

Optionally, the food packaging bag is made of a BOPA/PE composite film; wherein the BOPA layer faces the outside surface and the PE layer faces the inside surface.

Optionally, the thickness of the BOPA layer is 15 μm to 30 μm.

Optionally, the top end of the front bag wall and the top end of the back bag wall are adapted for heat sealing.

The beneficial effects of the utility model reside in that:

the utility model discloses a food package bag through the fenestrate setting in side heat-seal district for food holds the gas in the chamber and can be at the heating process, because food holds the inside atmospheric pressure increase of intracavity, gaseous natural outside inflation can be from the perforation department effusion, thereby reduces the interior food of bag and holds the atmospheric pressure in the chamber. Therefore, the food packaging bag of the utility model is not easy to generate fried bag and can be suitable for microwave heating.

The food packaging bag of the utility model has the perforation periphery completely surrounded by the front bag wall and the back bag wall, and the front bag wall and the back bag wall are heat sealed at the perforation periphery, namely, the perforation does not completely break the side heat sealing area, and the side heat sealing area still has a section of heat sealing film layer; the respective front and back bag walls on the side facing the food-holding cavity are also heat sealed to maintain the air-tightness of the bag when unheated. Meanwhile, as the heat sealing area at the periphery of the perforation is small, the perforation is easy to be broken by gas when the air pressure rises after being heated, and an exhaust hole is formed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, the drawings of the air pressure can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of the front side of the food packaging bag of the present invention.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all the embodiments of the air pressure obtained by the ordinary skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

Referring to fig. 1, the present embodiment provides a food packaging bag 100, the food packaging bag 100 includes a front bag wall and a back bag wall, and the front bag wall and the back bag wall enclose a food accommodating cavity. The front bag wall has front side heat seal areas on both sides and a front bottom heat seal area at the bottom. The back bag wall has two side back side edge heat-seal areas and a bottom back heat-seal area. The front side edge heat-seal area and the back side edge heat-seal area are correspondingly heat-sealed. The front bottom heat-sealing area and the back bottom heat-sealing area are correspondingly heat-sealed; wherein, the side edges of the heat sealing are provided with through holes penetrating through the front bag wall and the back bag wall.

The front bag wall and the back bag wall have the same structure. Taking the front structure view of fig. 1 as an example, the front bag wall has a front side edge heat-seal land 110 and a front bottom heat-seal land 120. The side heat-seal lands 110 and the bottom heat-seal land 120 enclose a receiving area 130. The receiving area 130 of the front pocket wall and the corresponding receiving area of the back pocket wall enclose a food receiving cavity. The side heat-seal lands 110 are provided with perforations 111, the perforations 111 penetrating the front and back bag walls.

The utility model discloses a food package bag through the perforation 111's in side heat-seal district setting for food holds the gas in the chamber and can be at the heating process, because food holds the inside atmospheric pressure increase of intracavity, gaseous natural outside inflation can be from the perforation department effusion, thereby reduces the interior food of bag and holds the atmospheric pressure in the chamber. Therefore, the food packaging bag of the utility model is not easy to generate fried bag and can be suitable for microwave heating.

Specifically, the periphery of the perforation 111 is surrounded by the front and back bag walls. The front and back bag walls are heat sealed at the periphery of the perforation 111. That is, the perforation 111 does not completely break the side heat-seal land, and a section of heat-seal film layer remains in the side heat-seal land; the respective front and back bag walls on the side facing the food-holding cavity are also heat sealed to maintain the air-tightness of the bag when unheated. Meanwhile, as the heat sealing area at the periphery of the perforation is small, the perforation is easy to be broken by gas when the air pressure rises after being heated, and an exhaust hole is formed.

Further, the top end of the front bag wall and the top end of the back bag wall are adapted for heat sealing. In this way, the front and rear walls can be sealed to form a complete pocket after the food product is placed in the cavity. When in use, the utility model can be inverted to be used as a bottom surface and is used in a vertical way.

In some embodiments, the material of the food packaging bag can be a BOPP/PET/PE composite film; wherein the BOPP (biaxially oriented polypropylene) layer is oriented towards the outer side surface and the PE (polyethylene) layer is oriented towards the inner side surface. The BOPP has good printing capacity and good transparency, is arranged on the outer side, and the ink can be printed on the inner side; the PET (polyethylene terephthalate) has good high-temperature resistance and is not easy to deform by heating, and is arranged in the middle of the composite film as a supporting layer; the PE layer has good heat sealing properties and is disposed on the inside.

Specifically, the thickness of the BOPP layer is 18 μm to 50 μm, and may be 18 μm, 25 μm, 30 μm, 38 μm, or 50 μm, for example. The thickness of the PET layer is 7 to 50 μm, and may be, for example, 7, 12, 15, 20, 25, 30 or 50 μm.

In some embodiments, the material of the food packaging bag can be a PET/BOPA/PE composite film; wherein the PET layer faces the outside surface and the PE layer faces the inside surface. The BOPA (biaxially oriented polyamide) layer has high toughness and strength and is resistant to stamping; and the one-way straight line in BOPA layer easily tears, uses the BOPA layer to set up as the main part in the middle in the complex film, tears the back opening and levels. The PET layer is transparent, is suitable for printing, is arranged on the outer side, and is printed by ink on the inner side, and is not easy to deform when heated due to good temperature resistance. The PE layer has good heat sealing properties and is disposed on the inside.

Specifically, the thickness of the PET layer is 7 to 50 μm, and may be, for example, 7, 12, 15, 20, 25, 30 or 50 μm. The thickness of the BOPA layer is 15 μm to 30 μm, and may be, for example, 15 μm, 20 μm, 25 μm, or 30 μm.

In some embodiments, the food packaging bag material may be a BOPA/PE composite film; wherein the BOPA layer faces the outside surface and the PE layer faces the inside surface. The BOPA layer has high toughness and strength and is resistant to stamping; and the BOPA rete is one-way straight line easily tears, uses the BOPA layer as the main part in the complex film, and the back opening of tearing is level and smooth. And the BOPA is also a transparent material, is suitable for printing and can print ink on the inner side. The BOPA layer can be used as a printing layer and a main body layer at the same time, so that the arrangement of one layer of film is reduced, the process procedures in the processing process are reduced, and the cost is saved. The PE layer has good heat sealing properties and is disposed on the inside.

The technical solution disclosed in the present invention has been described above by way of examples. It is believed that one skilled in the art can, using the preceding description of the embodiments, appreciate the present invention. It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A food packaging bag is characterized in that,

the food packaging bag comprises a front bag wall and a back bag wall, and a food accommodating cavity is defined by the front bag wall and the back bag wall; the front bag wall is provided with front side edge heat-sealing areas at two sides and a front bottom heat-sealing area at the bottom; the back bag wall is provided with back side edge heat-sealing areas at two sides and a back bottom heat-sealing area at the bottom; the front side edge heat-sealing area and the back side edge heat-sealing area are correspondingly heat-sealed; the front bottom heat-sealing area and the back bottom heat-sealing area are correspondingly heat-sealed;

wherein the heat-sealed side edges are formed with perforations that penetrate the front and back bag walls.

2. The food packaging bag according to claim 1,

the perforated periphery is surrounded by a front bag wall and a back bag wall.

3. The food packaging bag according to claim 2,

the front and back bag walls are heat sealed at the periphery of the perforations.

4. The food packaging bag according to claim 1,

the food packaging bag is made of a BOPP/PET/PE composite film; wherein the BOPP layer faces the outside surface and the PE layer faces the inside surface.

5. The food packaging bag according to claim 4,

the thickness of the BOPP layer is 18-50 mu m; the thickness of the PET layer is 7-50 μm.

6. The food packaging bag according to claim 1,

the food packaging bag is made of a PET/BOPA/PE composite film; wherein the PET layer faces the outside surface and the PE layer faces the inside surface.

7. The food packaging bag according to claim 6,

the thickness of the PET layer is 7-50 μm; the thickness of the BOPA layer is 15-30 μm.

8. The food packaging bag according to claim 1,

the food packaging bag is made of a BOPA/PE composite film; wherein the BOPA layer faces the outside surface and the PE layer faces the inside surface.

9. The food packaging bag according to claim 8,

the thickness of the BOPA layer is 15-30 μm.

10. The food packaging bag according to any one of claims 1 to 9,

the top end of the front bag wall and the top end of the back bag wall are adapted for heat sealing.