CN112938140A

CN112938140A - Low-cost packaging bag capable of removing internal gas

Info

Publication number: CN112938140A
Application number: CN202110246182.0A
Authority: CN
Inventors: 魏中洪
Original assignee: Huajing Micro Nano Technology Suzhou Co ltd
Current assignee: Huajing Micro Nano Technology Suzhou Co ltd
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2021-06-11

Abstract

The invention discloses a packaging bag capable of exhausting internal gas at low cost. The packaging bag comprises a composite leakage-proof bag, wherein a plurality of bag holes are formed in the side face of the composite leakage-proof bag, an elastic membrane is arranged on the outer side of the composite leakage-proof bag, the elastic membrane covers all the bag holes, and a membrane hole is formed in the elastic membrane; wherein, the end of the composite leakage-proof bag is provided with a sealing groove. According to the packaging bag capable of removing the internal gas at low cost, the elastic membrane is arranged on the packaging bag, so that the gas in the packaging bag can be discharged during high-temperature disinfection, manual contact is avoided, the safety of sterilization is guaranteed, the cost consumption of manpower and material resources is reduced, and the production and processing efficiency is improved.

Description

Low-cost packaging bag capable of removing internal gas

Technical Field

The invention relates to the field of packaging bags, in particular to a packaging bag capable of exhausting internal gas at low cost.

Background

In the production and manufacturing processes of foods, medicines and the like, high-temperature sterilization is often required to be performed in a packaging bag, and during the sterilization, the gas temperature in the packaging bag rises to expand, and if the gas cannot be removed in time, the material performance and the service life of the packaging bag are affected, so that the gas generated in the packaging bag needs to be discharged in time.

In a traditional sterilization process, holes are generally reserved on a packaging bag to timely remove gas, and manual sealing treatment needs to be performed on the holes after sterilization is completed, wherein in the manual sealing process, bacteria are easily brought into the packaging bag due to imprecise manual operation to cause pollution, so that production accidents are caused. Therefore, the method for exhausting the gas in the packaging bag without human contact has important significance and practicability.

Disclosure of Invention

In order to solve the problems, the invention provides a packaging bag which is low in cost and can exhaust internal gas.

According to one aspect of the invention, the packaging bag for removing internal gas at low cost comprises a composite leakage-proof bag, wherein a plurality of bag holes are formed in the side surface of the composite leakage-proof bag, an elastic membrane is arranged on the outer side of the composite leakage-proof bag and covers all the bag holes, and a membrane hole is formed in the elastic membrane; wherein, the end of the composite leakage-proof bag is provided with a sealing groove.

According to the packaging bag capable of removing the internal gas at low cost, the elastic membrane is arranged on the packaging bag, so that the gas in the packaging bag can be discharged during high-temperature disinfection, manual contact is avoided, the safety of sterilization is guaranteed, the cost consumption of manpower and material resources is reduced, and the production and processing efficiency is improved.

In some embodiments, the membrane aperture is no less than 5mm from each of the pouch apertures. Therefore, the film holes and the bag holes are generally staggered and have a certain distance, and the effective blocking effect on bacteria and the like can be achieved.

In some embodiments, the area of the pocket hole is no more than 10% of the area of the elastic film sheet. Therefore, the elastic membrane can be ensured to fully cover the bag hole.

In some embodiments, the pouch aperture is a circular aperture and has a diameter of no more than 2 mm. Thus, the appropriate shape and size of the pocket holes are provided, and in addition, other appropriate sizes may be provided as desired.

In some embodiments, the membrane pores are round holes or slits. Thereby, a suitable shape of the membrane pores is provided, but also other suitable shapes, such as cross-shaped slits, etc., may be provided as desired.

In some embodiments, the elastic membrane is made of silicone. Thus, a suitable material for the elastic membrane is provided.

In some embodiments, the composite leakage-proof bag is provided with the bag holes at a plurality of positions, and the outside of each position of the bag hole is covered with one piece of the elastic membrane. Therefore, when the composite leakage-proof bag is large, the bag holes and the elastic membranes can be arranged at a plurality of positions on the composite leakage-proof bag according to actual conditions so as to ensure timely exhaust.

In some embodiments, each of the elastic membrane has a plurality of membrane pores disposed therein. This can further improve the exhaust efficiency.

Drawings

FIG. 1 is a schematic diagram of a front view of a low-cost bag for venting internal gases, in accordance with an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the low-cost bag shown in FIG. 1 with the inside gas removed;

fig. 3 is a cross-sectional view schematically illustrating a low-cost inside air-excluding packaging bag according to another embodiment of the present invention.

In the figure: the composite leakage-proof bag comprises a composite leakage-proof bag 1, a bag hole 2, an elastic membrane 3, a membrane hole 4 and a sealing groove 5.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 schematically shows a front structure of a low-cost internal gas elimination packaging bag according to the present invention, and fig. 2 shows a cross-sectional structure of the low-cost internal gas elimination packaging bag of fig. 1. As shown in fig. 1-2, the food bag mainly comprises a composite leakage-proof bag 1, a plurality of bag holes 2 are arranged on the side surface of the composite leakage-proof bag 1, and the gas in the composite leakage-proof bag 1 can be discharged to the outside through the bag holes 2 as required. In order to ensure that the gas can be smoothly discharged and prevent external bacteria and the like from entering the composite leakage-proof bag 1, an elastic membrane 3 is fixedly connected to the outer side of the composite leakage-proof bag 1, and the elastic membrane 3 completely covers all the bag holes 2.

The elastic membrane 3 is breathable and bacteria-proof because it has a membrane hole 4, and the membrane hole 4 can let dry air pass through but not pass through bacteria.

Furthermore, in order to ensure an effective blocking effect against bacteria and the like, the film holes 4 are generally staggered from the respective bag holes 2 and have a distance of not less than 5 mm.

Preferably, the area of the pocket 2 does not exceed 10% of the area of the elastic membrane 3, it is ensured that the elastic membrane 3 covers the pocket 2 sufficiently.

The bag hole 2 is preferably a circular hole, and the diameter thereof is generally not more than 2mm, and can be set to other suitable sizes according to practical situations.

It is further preferable that the membrane holes 4 are circular holes or slits, which are small in size so as not to pass bacteria easily, and may be formed in other suitable shapes, such as cross-shaped slits, as needed.

Preferably, the elastic membrane 3 is made of silicone rubber, which can float when subjected to an inflation pressure, and the elastic membrane 3 is fixedly connected to the outside of the composite leakage-proof bag 1, typically by means of bonding or welding, and other suitable fixing connection means may be selected according to actual circumstances.

Further, a sealing groove 5 is provided at an end of the composite leakage preventing bag 1, which can be manually opened or closed, thereby opening the composite leakage preventing bag 1 to put or take out foods or medicines.

When food or medicine is packaged and disinfected, the sealing groove 5 is manually opened to place the food or medicine into the composite leakage-proof bag 1, and then the sealing groove 5 is closed to carry out high-temperature disinfection. And during the disinfection, because temperature rising in the compound leak-proof bag 1, atmospheric pressure wherein rises to the atmospheric pressure that is higher than the external environment, then can make elastic diaphragm 3 float to the outside, the air in the compound leak-proof bag 1 can flow out to the outside through bag hole 2 and the membrane hole 4 on the elastic diaphragm 3 above that to reduce the inside pressure of compound leak-proof bag 1 and until it is not higher than the atmospheric pressure of external environment, elastic diaphragm 3 resets and covers bag hole 2, plays sealed effect. Therefore, under the action of the elastic membrane 3, the gas in the composite leakage-proof bag 1 can only flow out from the inside to the outside, and the bacteria outside cannot enter the composite leakage-proof bag 1.

Fig. 3 schematically shows a cross-sectional structure of another low-cost inside gas exhausting packaging bag according to the present invention. As shown in fig. 3, when the composite leakage-proof bag 1 is large and the bag hole 2 and the elastic membrane 3 are not enough to exhaust air in time, the bag hole 2 can be arranged at a plurality of different positions on the composite leakage-proof bag 1, and the elastic membrane 3 covers the outer side of each bag hole 2, so that air can be exhausted from a plurality of different positions, and the air exhaust efficiency is improved.

Furthermore, if the venting efficiency is still not satisfactory, it is also possible to provide a plurality of film holes 4 per elastic membrane 3, which further increases the venting efficiency, wherein it is noted that the film holes 4 should all be offset from the bag holes 2.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a low-cost wrapping bag of inside gas of getting rid of which characterized in that: the anti-leakage bag comprises a composite anti-leakage bag (1), wherein a plurality of bag holes (2) are formed in the side face of the composite anti-leakage bag (1), an elastic membrane (3) is installed on the outer side of the composite anti-leakage bag (1), the elastic membrane (3) covers all the bag holes (2), and a membrane hole (4) is formed in the elastic membrane (3); wherein, the end part of the composite leakage-proof bag (1) is provided with a sealing groove (5).

2. The low-cost inside-gas-excluding packaging bag according to claim 1, wherein: the distance between the membrane hole (4) and each bag hole (2) is not less than 5 mm.

3. The low-cost inside-gas-excluding packaging bag according to claim 1, wherein: the area of the bag hole (2) is not more than 10% of the area of the elastic membrane (3).

4. The low-cost inside-gas-excluding packaging bag according to claim 1, wherein: the bag hole (2) is a round hole, and the diameter of the bag hole is not more than 2 mm.

5. The low-cost inside-gas-excluding packaging bag according to claim 1, wherein: the film holes (4) are round holes or thin slits.

6. The low-cost inside-gas-excluding packaging bag according to claim 1, wherein: the elastic membrane (3) is made of silica gel.

7. A low-cost inside-gas-excluding packaging bag according to any one of claims 1 to 6, wherein: the composite leakage-proof bag (1) is provided with the bag holes (2) at a plurality of positions, and the outer side of each position of the bag hole (2) is covered with one elastic membrane (3).

8. The low-cost inside-gas-excluding packaging bag according to claim 7, wherein: each elastic membrane (3) is provided with a plurality of membrane holes (4).