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Homocentric-square-shaped one-way exhaust packaging bag

A one-way exhaust and packaging bag technology, applied in the field of packaging bags, can solve the problems of adding extra space for packaging and transportation costs, complex labor installation costs, etc., and achieve the effect of saving packaging and transportation costs and labor

Inactive Publication Date: 2022-03-25
中山互润天成环保包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, some packaging bags such as coffee and chemical raw materials on the market that require moisture-proof and exhaust air mainly use the form of a single-way exhaust valve for one-way exhaust. In actual use, in addition to the cost of the one-way exhaust valve itself, it also needs more Complicated labor installation costs, as well as packaging and shipping costs for the extra space added to this

Method used

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  • Homocentric-square-shaped one-way exhaust packaging bag
  • Homocentric-square-shaped one-way exhaust packaging bag
  • Homocentric-square-shaped one-way exhaust packaging bag

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0020] To keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of known functions and known components are omitted from the present invention.

[0021] see Figure 1 to Figure 3 As shown, in this embodiment, a return-shaped one-way venting packaging bag is provided, which mainly includes a bag body, and is characterized in that the upper side of the bag body is provided with an upper edge, while the lower side is provided with...

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Abstract

The invention discloses a homocentric-square-shaped one-way exhaust packaging bag, and relates to the technical field of packaging bags. The bag comprises a bag body, sealing edges are arranged on the upper side and the lower side of the bag body, and one side or two sides of the bottom of the bag body are provided with concentric-square-shaped structures. The special structure of the bag body is that a plurality of one-way needle holes are formed in the concentric-square-shaped structure. A plurality of one-way needle holes are formed in the concentric-square-shaped structure of the bag body, so that when the pressure in the bag body is positive, natural exhaust can be achieved through the concentric-square-shaped structure; and when the interior of the bag body is in negative pressure, the supporting material around the one-way needle hole is uniformly stressed, so that the purposes of natural closing, air blocking and prevention of mutual exchange between gas of other components and gas in the bag body are achieved.

Description

technical field [0001] The invention belongs to the technical field of packaging bags, in particular to a round-shaped one-way air-venting packaging bag. Background technique [0002] At present, some packaging bags such as coffee and chemical raw materials on the market that require moisture-proof and exhaust air mainly use the form of a single-way exhaust valve for one-way exhaust. In actual use, in addition to the cost of the one-way exhaust valve itself, it also needs more The cost of complex labor installation, and the packaging and shipping costs for the extra space that this adds. Contents of the invention [0003] The object of the present invention is to provide a return-shaped one-way venting packaging bag. By setting a return-shaped structure with one-way pinholes on the bag body, when the inside of the bag is under positive pressure, it can be naturally discharged through the return-shaped structure. When the inside of the bag is under negative pressure, the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D33/04B65D33/01B65D33/16
CPCB65D33/04B65D33/01B65D33/16
Inventor 张迎波
Owner 中山互润天成环保包装有限公司