CN215476854U

CN215476854U - Microwave exhaust bag

Info

Publication number: CN215476854U
Application number: CN202121381833.9U
Authority: CN
Inventors: 高虎; 蒋建中; 刘明武; 朱妙清
Original assignee: Amco Huizhou New Material Technology Co ltd
Current assignee: Amco Huizhou New Material Technology Co ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2022-01-11
Anticipated expiration: 2031-06-21

Abstract

The utility model relates to the technical field of food packaging, and discloses a microwave exhaust bag which comprises a bag body, wherein an accommodating cavity is arranged in the bag body, a side edge sealing edge is arranged on the side edge of the bag body, a pressure exhaust structure used for being communicated with the accommodating cavity is arranged on the bag body, the pressure exhaust structure comprises a cutting and a sealing part, the cutting is arranged at an opening of the accommodating cavity, the sealing strength of the cutting is smaller than that of the side edge sealing edge, the sealing part is arranged at the side edge sealing edge, an exhaust port is formed in one side of the sealing part, which is far away from the accommodating cavity, the width of the sealing part is smaller than that of the side edge sealing edge, and the sealing strength of the sealing part is smaller than that of the side edge sealing edge. The microwave exhaust bag can automatically exhaust when the interior of the bag body is expanded at high temperature, and has the high-temperature explosion-proof effect.

Description

Microwave exhaust bag

Technical Field

The utility model relates to the technical field of food packaging, in particular to a microwave exhaust bag.

Background

Packaged food often uses microwave oven, steamer etc. to heat, however, ordinary food packaging bag can't self-bleeding, and in heating process, food makes the wrapping bag inflation blasting because of high temperature vapor makes the wrapping bag, not only scalds the user easily, causes harm to safety, still can make food splash in heating container, is difficult to clean.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide a microwave exhaust bag which can automatically exhaust when the interior of the bag body expands at high temperature and has the high-temperature explosion-proof effect.

The purpose of the utility model is realized by the following technical scheme:

the utility model provides a microwave exhaust bag, includes the bag body, the internal holding chamber that is provided with of bag, the side of the bag body is provided with the side banding, the bag body be provided with be used for with the pressure exhaust structure of holding chamber intercommunication, the pressure exhaust structure includes cutting and involution portion, the cutting set up in the opening part in holding chamber, the involution intensity of cutting department is less than the involution intensity of side banding, involution portion set up in side banding department, involution portion keeps away from the gas vent has been seted up to one side in holding chamber, the width of involution portion is less than the width of side banding, just the involution intensity of involution portion is less than the involution intensity of side banding.

In one embodiment, the ratio of the width of the sealing part to the width of the side sealing edge is 1: (1.5-2.5).

In one embodiment, the exhaust port has an arcuate configuration.

In one embodiment, the cutting comprises a first CPP layer, a PET layer and a second CPP layer, the first CPP layer is attached to the inner wall of the bag body, the PET layer is attached to a side face, away from the bag body, of the first CPP layer, and the second CPP layer is attached to a side face, away from the first CPP layer, of the PET layer.

In one embodiment, an easy-to-tear opening is formed in one side of the side sealing edge, which is far away from the accommodating cavity, and the easy-to-tear opening is formed below the exhaust port.

In one embodiment, one end of the easy-tearing opening close to the accommodating cavity is a sharp-angled end.

In one embodiment, the pouch body is a free-standing pouch.

In one embodiment, the bag bottom of the bag body is provided with a bottom sealing edge, and one side of the bottom sealing edge, which is close to the accommodating cavity, is downwards sunken to form an arc-shaped surface.

In one embodiment, a side of the bottom sealing edge away from the accommodating cavity is provided with a heat sealing hole.

In one of them embodiment, the bag body is by the banding shaping of overlapping plastic film side, the plastic film includes polypropylene layer, nylon layer and the dacron resin layer that sets gradually from inside to outside.

Compared with the prior art, the utility model has at least the following advantages:

the pressure exhaust structure is arranged, the sealing strength of the cutting part is smaller than that of the side sealing edge, the sealing part can be opened due to the fact that the sealing strength of the sealing part is smaller than that of the side sealing edge due to food evaporation in heating, the sealing part can be opened due to the fact that the sealing strength of the sealing part is smaller than that of the side sealing edge, when high-pressure steam in the bag body expands to a certain degree, the sealing part can be opened, the pressure exhaust structure is communicated with the containing cavity, the steam in the bag body is exhausted through the exhaust port, and therefore the purpose of automatic exhaust is achieved, and the high-temperature explosion-proof effect is good.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a microwave exhaust bag according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a slip of a microwave exhaust pocket according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of a plastic film of a microwave exhaust bag according to an embodiment of the present invention.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

An embodiment, please refer to fig. 1, a microwave exhaust bag, includes a bag body 110, a receiving chamber 111 is provided in the bag body 110, a side sealing edge 112 is provided at a side edge of the bag body 110, a pressure exhaust structure 113 for communicating with the receiving chamber 111 is provided at the bag body 110, the pressure exhaust structure 113 includes a cutting 1131 and a sealing portion 1132, the cutting 1131 is provided at an opening of the receiving chamber 111, a sealing strength of the cutting 1131 is smaller than a sealing strength of the side sealing edge 112, the sealing portion 1132 is provided at the side sealing edge 112, an exhaust port 1133 is provided at a side of the sealing portion 1132 far away from the receiving chamber 111, the width of the sealing portion 1132 is smaller than the width of the side sealing edge 112, and the sealing strength of the sealing portion 1132 is smaller than the sealing strength of the side sealing edge 112.

It should be noted that the cutting 1131 is used for sealing the mouth of the bag body 110, and has the functions of separation and easy tearing, because the sealing strength of the cutting 1131 is less than that of the side sealing edge 112, during heating, the bag body 110 is rapidly expanded due to food evaporation, and the cutting 1131 is broken, because the width of the sealing portion 1132 is less than that of the side sealing edge 112, and the sealing strength of the sealing portion 1132 is less than that of the side sealing edge 112, when the high-pressure steam inside the bag body 110 expands to a certain extent, the sealing portion 1132 is broken, so that the pressure exhaust structure 113 is communicated with the accommodating cavity 111, and the steam inside the bag body 110 is exhausted through the exhaust port 1133, thereby achieving the purpose of automatic exhaust, and having a good high-temperature explosion-proof effect.

Further, when the width size ratio of the sealing portion 1132 to the side sealing edge 112 is 1: (1.5-2.5), more preferably 1: in case 2, the opening pressure of the sealing portion 1132 is preferably set. For example, the sealing portion 1132 has a width of 4mm, and the side sealing edge 112 has a width of 7.5 mm.

Further, the exhaust port 1133 has an inwardly concave arc structure, so that the formed arc sealing portion 1132 is easily broken.

Further, referring to fig. 2, the insert 1131 includes a first CPP layer 1131a, a PET layer 1131b, and a second CPP layer 1131c, the first CPP layer 1131a is attached to the inner wall of the bag body 110, the PET layer 1131b is attached to a side of the first CPP layer 1131a away from the bag body 110, and the second CPP layer 1131c is attached to a side of the PET layer 1131b away from the first CPP layer 1131 a. The first CPP layer 1131a and the second CPP layer 1131c are the same, are made of cast polypropylene film (short for CPP) materials, and the PET layer 1131b is made of polyethylene terephthalate (short for PET) materials, so that the insert 1131 has the characteristics of good barrier property, excellent high-temperature steaming resistance, easiness in heat sealing and the like through the first CPP layer 1131a, the PET layer 1131b and the second CPP layer 1131 c.

Further, an easy-to-tear opening 114 is formed in one side of the side sealing edge 112, which is away from the accommodating cavity 111, and the easy-to-tear opening 114 is disposed below the air outlet 1133 and is used for tearing open the bag body 110. Preferably, one end of the easy-tearing opening 114 close to the receiving cavity 111 is provided with a sharp-angled end 1141 so as to facilitate straight-line easy tearing.

Further, the bag body 110 is a self-standing bag.

Further, the bottom of the bag body 110 is provided with a bottom sealing edge 115, and one side of the bottom sealing edge 115 close to the accommodating cavity 111 is recessed downwards to form an arc surface 1151, so that the bottom of the accommodating cavity 111 is in a downward recessed arc shape, and the center of gravity of the standing bag is downward, thereby facilitating stable standing.

Further, a heat sealing hole 1152 is formed in a side of the bottom sealing edge 115 away from the accommodating cavity 111. Preferably, the heat sealing holes 1152 are arc-shaped structures which are sunken inwards, so that standing stability of the self-standing bag can be improved.

Further, referring to fig. 3, the bag body 110 is formed by edge sealing the side edges of the overlapped plastic film 116, and the plastic film 116 includes a polypropylene layer 1161, a nylon layer 1162 and a polyester resin layer 1163 which are sequentially disposed from inside to outside. The polypropylene layer 1161 is made of polypropylene (abbreviated as PP), the nylon layer 1162 is made of nylon (abbreviated as NY), and the polyester resin layer 1163 is made of polyethylene terephthalate (abbreviated as PET), so that the WCPP layer, the nylon layer and the SPET layer enable the bag body 110 to have the advantages of being good in barrier property, good in heat deformation resistance, easy to tear and the like. Preferably, the polypropylene layer is made of a water-based chlorinated polypropylene-acrylic acid copolymer (WCPP for short). Preferably, the material of the polyester resin layer is a special PET (SPET for short) material.

the pressure exhaust structure 113 is arranged, because the sealing strength of the cutting 1131 is smaller than that of the side sealing edge 112, when the bag body 110 is heated, the interior of the bag body 110 expands rapidly due to food evaporation, the cutting 1131 can be broken, because the width of the sealing portion 1132 is smaller than that of the side sealing edge 112, and the sealing strength of the sealing portion 1132 is smaller than that of the side sealing edge 112, when high-pressure steam in the bag body 110 expands to a certain degree, the sealing portion 1132 can be broken, so that the pressure exhaust structure 113 is communicated with the accommodating cavity 111, and the steam in the bag body 110 is exhausted through the exhaust port 1133, thereby achieving the purpose of automatic exhaust, and having good high-temperature explosion-proof effect.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a microwave exhaust bag, includes the bag body, the internal holding chamber that is provided with of bag, the side of the bag body is provided with the side banding, a serial communication port, the bag body be provided with be used for with the pressure exhaust structure of holding chamber intercommunication, the pressure exhaust structure includes cutting and involution portion, the cutting set up in the opening part in holding chamber, the involution intensity of cutting department is less than the involution intensity of side banding, involution portion set up in side banding department, involution portion is kept away from the gas vent has been seted up to one side in holding chamber, the width of involution portion is less than the width of side banding, just the involution intensity of involution portion is less than the involution intensity of side banding.

2. A microwave exhaust pocket according to claim 1, wherein the ratio of the width of the seal to the side seal is 1: (1.5-2.5).

3. A microwave exhaust pocket according to claim 1, wherein the exhaust port is of arcuate configuration.

4. The microwave exhaust bag according to claim 3, wherein the insert comprises a first CPP layer, a PET layer and a second CPP layer, the first CPP layer is attached to the inner wall of the bag body, the PET layer is attached to one side of the first CPP layer away from the bag body, and the second CPP layer is attached to one side of the PET layer away from the first CPP layer.

5. The microwave exhaust bag according to claim 1, wherein an easy-to-tear opening is formed in a side of the side sealing edge away from the accommodating cavity, and the easy-to-tear opening is disposed below the exhaust opening.

6. The microwave venting bag of claim 5, wherein an end of the tear-off opening adjacent to the receiving cavity is a sharp-angled end.

7. A microwave exhaust bag according to claim 1, wherein the bag body is a free-standing bag.

8. A microwave exhaust bag according to claim 7, wherein the bag bottom of the bag body is provided with a bottom sealing edge, and one side of the bottom sealing edge close to the containing cavity is recessed downwards to form an arc-shaped surface.

9. The microwave exhaust bag according to claim 8, wherein the bottom seal has a heat seal hole on a side thereof remote from the receiving cavity.

10. The microwave exhaust bag according to claim 1, wherein the bag body is formed by edge sealing the side edges of overlapping plastic films, and the plastic films comprise a polypropylene layer, a nylon layer and a polyester resin layer which are arranged in sequence from inside to outside.