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CN-224225676-U - Packaging bag convenient for exhausting and used for microwave oven

CN224225676UCN 224225676 UCN224225676 UCN 224225676UCN-224225676-U

Abstract

The packaging bag for the microwave oven convenient to exhaust comprises a bag body, wherein an inner cavity is formed in the bag body, a sealing unit is arranged at the end part of the bag body, the sealing unit comprises a first sealing bag layer and a second sealing bag layer which are in sealing connection with each other, the sealing unit is divided into a first sealing area and a second sealing area by areas, a first transverse ventilation channel and a first longitudinal ventilation channel are arranged in the first sealing area, the first longitudinal ventilation channel is respectively communicated with the first transverse ventilation channel and the inner cavity, a second longitudinal ventilation channel is arranged in the second sealing area, the second longitudinal ventilation channel is respectively communicated with the first transverse ventilation channel and the outside, a first adhesive layer which is invalid at a high temperature is arranged between the first sealing bag layer or the second sealing bag layer corresponding to the first longitudinal ventilation channel or the second longitudinal ventilation channel, and the high temperature is above 80 ℃.

Inventors

  • Sun Zuofan
  • Fu Huabang
  • Fu Juanwei

Assignees

  • 浙江文久包装科技有限公司

Dates

Publication Date
20260512
Application Date
20250520

Claims (7)

  1. 1. The packaging bag for the microwave oven convenient to exhaust comprises a bag body (1), wherein an inner cavity (2) is formed in the bag body (1), a sealing unit is arranged at the end part of the bag body (1), the sealing unit comprises a first sealing bag layer (3) and a second sealing bag layer (4) which are in sealing connection with each other, and the packaging bag is characterized in that the sealing unit is divided into a first sealing area (5) and a second sealing area (6) according to areas, a first transverse ventilation channel (7) and a first longitudinal ventilation channel (8) are arranged in the first sealing area (5), the first longitudinal ventilation channel (8) is respectively communicated with the first transverse ventilation channel (7) and the inner cavity (2), the second sealing area (6) is provided with a second longitudinal ventilation channel (10), the second longitudinal ventilation channel (10) is respectively communicated with the first transverse ventilation channel (7) and the outside, a first sealing bag layer (3) or the second sealing bag layer (4) corresponding to the first longitudinal ventilation channel (8) is provided with a high-viscosity high-temperature failure layer (11) between the first sealing bag layer (3) and the second sealing bag layer (4), and the high-temperature failure temperature is 80 DEG; The first longitudinal ventilation channel (8) or the second longitudinal ventilation channel (10) is in a closed state in a normal state, when the temperature is higher than 80 ℃, the first adhesive layer (11) fails, and the inner cavity (2), the first longitudinal ventilation channel (8), the first transverse ventilation channel (7), the second longitudinal ventilation channel (10) and the outside are sequentially communicated to form an exhaust structure for ventilation of the inner cavity (2).
  2. 2. The packaging bag for the microwave oven convenient to exhaust according to claim 1, wherein the second sealing area (6) is further provided with a second transverse ventilation channel (9) which is correspondingly communicated and matched with the first transverse ventilation channel (7), and one or more of the first transverse ventilation channel (7), the first longitudinal ventilation channel (8), the second transverse ventilation channel (9) and the second longitudinal ventilation channel (10) are arranged.
  3. 3. The packaging bag for the microwave oven convenient to exhaust according to claim 2, wherein the first transverse ventilation channel (7), the first longitudinal ventilation channel (8), the second transverse ventilation channel (9) and the second longitudinal ventilation channel (10) are all multiple, and the multiple ventilation channels of the same type are mutually isolated through hot pressing or bonding.
  4. 4. The packaging bag for the microwave oven convenient to exhaust according to claim 1, wherein the first longitudinal ventilation channels (8) are composed of a plurality of ventilation modules, the ventilation modules are arranged between the adjacent first transverse ventilation channels (7), the ventilation modules are used for communicating the inner cavities (2) with the first transverse ventilation channels (7), the adjacent inner cavities (2) with the first transverse ventilation channels (7), the ventilation modules are formed by uniformly arranging a plurality of ventilation openings, and the ventilation openings of the adjacent ventilation modules are staggered.
  5. 5. The packaging bag for the microwave oven convenient to exhaust according to claim 1, wherein the first adhesive layer (11) is arranged in the second longitudinal ventilation channels (10), the number of the second longitudinal ventilation channels (10) is one, when the bag body (1) is positioned at a high temperature above 80 ℃, the first adhesive layer (11) loses viscosity, and the inner cavity (2), the first longitudinal ventilation channels (8), the first transverse ventilation channels (7), the second longitudinal ventilation channels (10) and the outside are sequentially communicated to form an air exhaust structure for ventilation of the inner cavity (2).
  6. 6. A packaging bag for a microwave oven having a convenient evacuation function as set forth in claim 1, wherein said first adhesive layer (11) is made of any one of a low-density polyethylene material, an ethylene-vinyl acetate copolymer, an aqueous acrylic adhesive and polyvinyl acetate.
  7. 7. The packaging bag for the microwave oven convenient to exhaust according to claim 1, wherein a sponge body layer (12) is arranged between a first sealing bag layer (3) and a second sealing bag layer (4) corresponding to the first longitudinal ventilation channel (8), the sponge body layer (12) is adhered to the first sealing bag layer (3) and the second sealing bag layer (4) through a second adhesive layer, the sponge body layer (12) adopts natural wood cellulose sponge, food-grade PU sponge, food-grade silica gel sponge or PE foaming sponge, and high-temperature activated carbon odor removing particles are adhered to the sponge body layer (12).

Description

Packaging bag convenient for exhausting and used for microwave oven Technical Field The utility model relates to the field of packaging bags, in particular to a packaging bag for a microwave oven, which is convenient for exhausting. Background The packaging bag is used for packaging various articles, so that the materials are convenient to transport in the production and circulation processes and easy to transport. At present, food is packaged by adopting a packaging bag, when the food needs to be heated by using a microwave oven, if the packaging bag is not opened and is directly placed in the microwave oven for heating, although the water loss can be prevented, the explosion can be generated due to the internal steam pressure, so that a consumer needs to take out the food before heating and place the food on a dinner plate, and then the food is heated by using the microwave oven. The utility model provides a portable wrapping bag for microwave oven convenient to exhaust among the prior art in application number 2021222706065, includes the outer wrapping bag body and the inner bag body, the outer wrapping bag body includes adventitia layer and resin adhesive layer, the internal surface of adventitia layer is provided with resin adhesive layer, and both ends are provided with circular hole about the surface of adventitia layer, resin adhesive layer is located the bottom outside in circular hole, the internal surface of resin adhesive layer is provided with the inner bag body, the inner bag body includes internal connection rete and interior barrier layer. The prior technical proposal realizes the heating and exhausting effect of the microwave oven of the packaging bag by frying the low-density easy-to-tear film layer under the expansion pressure of the gas after heating to a certain extent and exhausting the gas through the circular holes, but the technical proposal has the following technical problems that firstly, the low-density easy-to-tear film layer is required to be expanded and exploded during exhausting, and corresponding explosion risks exist; finally, if the strength of the low-density easy-to-tear film layer of the packaging bag is too low, the rupture of the low-density easy-to-tear film layer in the transportation process is easy to cause the pollution to the food in the packaging bag, and if the strength of the low-density easy-to-tear film layer is too strong, the explosion difficulty of the low-density easy-to-tear film layer is easy to cause the influence on the ventilation effect. Disclosure of Invention In order to solve the above problems, the present utility model provides a packaging bag for a microwave oven which facilitates air discharge: The packaging bag for the microwave oven convenient to exhaust comprises a bag body, wherein an inner cavity is arranged in the bag body, a sealing unit is arranged at the end part of the bag body, the sealing unit comprises a first sealing bag layer and a second sealing bag layer which are in sealing connection with each other, the sealing unit is divided into a first sealing area and a second sealing area by areas, a first transverse ventilation channel and a first longitudinal ventilation channel are arranged in the first sealing area, the first longitudinal ventilation channel is respectively communicated with the first transverse ventilation channel and the inner cavity, a second longitudinal ventilation channel is arranged in the second sealing area, the second longitudinal ventilation channel is respectively communicated with the first transverse ventilation channel and the outside, a first adhesive layer with high temperature failure is arranged between the first sealing bag layer or the second sealing bag layer corresponding to the first longitudinal ventilation channel or the second longitudinal ventilation channel, and the high temperature is more than 80 ℃; the first longitudinal ventilation channel or the second longitudinal ventilation channel is in a closed state in a normal state, when the temperature is higher than 80 ℃, the first adhesive layer fails, and the inner cavity, the first longitudinal ventilation channel, the first transverse ventilation channel, the second longitudinal ventilation channel and the outside are sequentially communicated to form an exhaust structure for ventilation of the inner cavity. Preferably, the second sealing area is further provided with a second transverse ventilation channel correspondingly communicated and matched with the first transverse ventilation channel, and one or more of the first transverse ventilation channel, the first longitudinal ventilation channel, the second transverse ventilation channel and the second longitudinal ventilation channel are arranged. Preferably, the first transverse ventilation channels, the first longitudinal ventilation channels, the second transverse ventilation channels and the second longitudinal ventilation channels are all multiple, and the multiple ventila