CN211970241U

CN211970241U - Microwave packing bag

Info

Publication number: CN211970241U
Application number: CN202020452541.9U
Authority: CN
Inventors: 刘松
Original assignee: Yangzhou Dayun Food Co ltd
Current assignee: Yangzhou Dayun Food Co ltd
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2020-11-20
Anticipated expiration: 2030-04-01

Abstract

The utility model discloses a microwave packaging bag, the bag body that can supply to heat food is equipped with including a splendid attire, the bag body is including skin and inlayer, wherein, the inlayer of the bag body includes two first strip layers that the interval set up and is located two second strip layers between the first strip layer, first strip layer and second strip layer all extend to the bag bottom from the sack, first strip layer adopts the material that the heat-seal temperature is greater than the heat-seal temperature on second strip layer, be formed with the bottom sealing edge of involution at the bottom of the bag, the bottom sealing edge is in first strip bottom is formed with the release mouth. The utility model provides a problem of the internal fluid of original wrapping bag can't effectively release bag when microwave oven heating.

Description

Microwave packing bag

Technical Field

The utility model belongs to a sack suitable for splendid attire food and heatable, concretely relates to microwave package bag.

Background

Packages suitable for heating are known, which contain food and thus can be heated in a microwave oven.

At present, a common microwave packaging bag is made of a plastic film material, food is filled into the packaging bag from a mouth inlet, water exists in the packaging bag in order to prevent the food from being dried, so that the food is kept moist, and the taste is better.

How to let the fluid in the bag naturally flow out to the bag body when heating is the technical problem that needs to solve at present.

SUMMERY OF THE UTILITY MODEL

Based on the above-mentioned defect that exists among the prior art, the utility model aims at providing a microwave packaging bag of improvement to solve the problem that original wrapping bag can't effectively release the internal fluid of bag when microwave oven heating.

The utility model adopts the technical scheme as follows:

the utility model provides a microwave packaging bag, includes that a splendid attire has the bag body that can supply to heat food, the bag body is including skin and inlayer, its characterized in that, the inlayer of the bag body includes two first strip layers that the interval set up and is located two second strip layers between two first strip layers, first strip layer and second strip layer all extend to the bag bottom from the sack, first strip layer adopts the heat-seal temperature to be greater than the material of the heat-seal temperature on second strip layer, be formed with the bottom sealing edge of involution at the bottom of the bag, the bottom sealing edge is in first strip layer bottom is formed with the release mouth.

Further, the first strip layer is an OPP plastic film or a PET polyester film, and the second strip layer is a CPP plastic film.

Further, the first strip layer and the second strip layer are combined into a whole along the longitudinal edge from the bag opening to the bag bottom.

Further, the width of the first strip layer is smaller than the width of the second strip layer.

Furthermore, a joint line for tearing is arranged on the bag body, and the joint line is arranged at the joint of the first layer and the adjacent second layer.

Further, the bonding line is provided with a notch at the bag mouth.

Furthermore, the outer layer of the bag body is made of an OPP plastic film material.

Furthermore, a printing layer and an anti-skid oil layer are arranged outside the outer layer of the bag body.

Compared with the prior art, the utility model provides a microwave packaging bag through set up release passage in bag body bottom involution edge, and food is heated and when pressure increases in the packaging bag, this release passage can open to make expanded fluid flow out naturally from the release passage export.

Drawings

Fig. 1 is a schematic perspective view of a microwave packaging bag according to an embodiment of the present invention.

Fig. 2 is the schematic view of the bag body in the embodiment of the present invention when tiled.

Fig. 3 is a schematic cross-sectional view of the bag body in the embodiment of the present invention.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail with reference to the accompanying drawings. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

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

Referring to fig. 1 to 3, a microwave packing bag disclosed in an embodiment of the present invention includes a bag body having a cavity for containing food in advance and being sealed, the bag body includes at least two layers, i.e., an outer layer 2 and an inner layer 1, the inner layer 1 of the bag body includes two first strips 11 spaced apart from each other and two second strips 12 located between the two first strips 11, the first strips 11 and the second strips 12 both extend from a mouth of the bag to a bottom of the bag, i.e., are formed in a longitudinal direction, the first strips 11 and the second strips 12 are combined into a whole along longitudinal edges from the mouth of the bag to the bottom of the bag, and may be formed by heat-sealing, similar to assembly and fixation, or may be formed by bonding two longitudinal edges of the first strips and the second strips to form a certain overlapping area, a width of the first strip 11 is smaller than a width of the second strip 12, and an area occupied by the first strip 11 is smaller, the second strip layer 12 is a rectangular strip, and occupies a larger area, and is a rectangular surface. The first strip layer 11 is made of a material with a heat sealing temperature higher than that of the second strip layer 12, wherein the temperature difference between the first strip layer and the second strip layer, which can be subjected to heat sealing, is preferably 40-60 degrees or more than 50 degrees, so that the second strip layer 12 can be subjected to heat sealing by setting certain temperature and time control when the bag body is manufactured and sealed, and the first strip layer 11 cannot be subjected to heat sealing. The bottom of the bag body is provided with a sealed bottom sealing edge 3, the bottom sealing edge 3 is formed in the transverse direction and has a certain height (the height is the longitudinal direction of the bag body), the bottom sealing edge 3 is provided with a release opening 4 at the bottom of the first layer 11, the bottom sealing edge 3 is heat-sealed at other areas except the release opening 4, the release passage is positioned between the inner layer and the outer layer, the first layer 11 and the release passage are intersected with a line and are provided with openings, and the openings can be sewn through spaced knitting threads or are not sewn at all. When the food in the bag is heated, the air therein will expand to a certain extent, and before the bag is completely ruptured, the release opening 4 will be opened, so that the fluid expanded in the bag can flow out of the channel, for example, into the steaming tray, and even if the second strip 12 of the inner layer is ruptured, the outer layer is not easily ruptured. For convenience of illustration, the sealing rim 3 is not shown in fig. 1 and 3 in the present embodiment, but it should be understood by those skilled in the art that the bottom sealing rim 3 can be formed by bonding the two sides of the bottom together. In a natural state, the release opening 4 is basically adhered together by the fact that certain viscosity exists on the upper surface and the lower surface, the release opening is sealed to a certain degree and cannot be opened easily, the channel can be opened only when the pressure in the packaging bag is increased and expanded to a certain degree, and the release opening looks like a plane body in appearance when no pressure exists.

In this embodiment, the number of the first strips 11 is only two, but is not limited to two. In addition, one or two or even more release channels may be provided.

Preferably, in this embodiment, the first layer 11 is an OPP plastic film or a PET polyester film, and the second layer 12 is a CPP plastic film. CPP (cast polypropylene) materials can be heat-sealed to each other at temperatures of about 120-130 ℃ or higher, but at temperatures below 180 ℃, the OPP material cannot be heat-sealed to itself or to the CPP material, while PET polyester films are less likely to be heat-sealed at temperatures below 180 ℃. The other areas of the bottom sealing edge 3 except the first strip layer 11 are all heat-sealed, the overlapped part of the second strip layer 12 of the inner layer 1 of the bottom sealing edge 3 is heat-sealed, and the overlapped area where the first strip layer 11 is located cannot be sealed, so that a heat-sealed edge cannot be formed. Fig. 2 is the schematic diagram of the utility model discloses when the bag body is spread out, during the preparation, form the tubulose with the longitudinal margin superpose of this bag body together to make the first layer 11 and the second layer 12 of inlayer 1 be located the bag inboard, then with the longitudinal margin seal together, probably form a sealing strip in the longitudinal direction, as shown by reference numeral 5 in the figure, the bottom of the bag body is heat-sealed again afterwards, form bottom sealing edge 3, owing to set up predetermined heat-seal temperature (preferably about 130 degrees, but need be less than 180 degrees) and time control, the release 4 region that middle first layer 11 provided then can't be sealed. The heat sealing of the bottom sealing edge 3 of the bag body can be realized by using a heat sealing bar.

In this embodiment, the bag body is further provided with a bonding line for tearing, the bonding line is a straight line of a dotted line, the bonding line is arranged at the joint of the first strip layer 11 and the adjacent second strip layer 12 so that a user can open the bag along the longitudinal direction, and in addition, the bonding line is provided with a notch 5 at the bag opening so as to be convenient for tearing.

In this embodiment, the outer layer 2 of the bag body can be made of OPP plastic film or other plastic materials.

In addition, a printing layer and an anti-skid oil layer (not shown in the figure) are arranged outside the outer layer of the bag body. The printing layer can adopt a polyethylene terephthalate (PET) film with the thickness of 10-20 um, corresponding printing ink patterns are printed in advance according to design requirements, and the anti-skid gloss oil layer can adopt GP65AE gloss oil to play an anti-skid effect, so that the packaging bag is stored and transported to be stacked and is not easy to slip. Adopts a multilayer structure, has high strength and is not easy to break.

The above is only the preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed as above by the preferred embodiment, but not limited to the present invention, and those skilled in the art can make some changes or modifications to equivalent embodiments using the above disclosed technical content without departing from the technical scope of the present invention, but all the simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still belong to the technical scope of the present invention.

Claims

1. The utility model provides a microwave packaging bag, includes that a splendid attire has the bag body that can supply to heat food, the bag body is including skin and inlayer, its characterized in that, the inlayer of the bag body includes two first strip layers that the interval set up and is located two second strip layers between two first strip layers, first strip layer and second strip layer all extend to the bag bottom from the sack, first strip layer adopts the heat-seal temperature to be greater than the material of the heat-seal temperature on second strip layer, be formed with the bottom sealing edge of involution at the bottom of the bag, the bottom sealing edge is in first strip layer bottom is formed with the release mouth.

2. The microwave package bag of claim 1, wherein the first layer is an OPP plastic film or a PET polyester film and the second layer is a CPP plastic film.

3. The microwave package of claim 1, wherein the first and second strips are integrally joined along a longitudinal edge from the mouth to the bottom of the bag.

4. A microwave package according to claim 2, wherein the width of the first strip is less than the width of the second strip.

5. The microwave package bag according to claim 1, wherein the bag body is further provided with a joint line for tearing, and the joint line is arranged at the joint of the first layer and the adjacent second layer.

6. A microwave package according to claim 5, wherein the join line is notched at the mouth of the bag.

7. The microwave package bag according to claim 1, wherein the outer layer of the bag body is made of OPP plastic film.

8. The microwave package bag according to claim 1 or 7, wherein a printed layer and an anti-slip varnish layer are further disposed outside the outer layer of the bag body.