Three-layer air sealing body

A technology of air sealing body and air chamber, which is applied in the direction of preventing mechanical damage to containers, containers, transportation and packaging, etc. It can solve problems such as uneven air intake, difficult air intake, and affecting the opening of the air intake port, and achieves the reduction of wrinkles , fast air intake speed, uniform air intake effect

Inactive Publication Date: 2017-01-25
广东艾贝克新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The disadvantages of the above-mentioned technical solution are: two layers of outer film and two layers of inner film are used, and the number of layers is large, resulting in waste of materials; when air intake, four layers of film need to be washed away from the middle, resulting in difficult and slow air intake; four layers Membrane structure products are heavy in weight and need to be improved in terms of lightness; the four-layer membrane produces many folds when inflated, resulting in uneven air intake when inflated, and even one air inlet is not opened, and the unopened part is surrounded by wrinkles together, affect the opening of subsequent air intakes

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0034] like Figure 1 to Figure 3 , the three-layer air-sealed body in this embodiment includes the front outer membrane 1a, the rear outer membrane 1b and the inner membrane 2, an air-filled channel 3, a plurality of air chambers 4, a top heat-sealing line 5, a middle heat-sealing line 6, and a bottom Heat seal line 7, longitudinal heat seal line 8 and air intake channel 9.

[0035] The anterior adventitia 1a and the posterior adventitia 1b overlap up and down.

[0036] The intima 2 is located between the anterior adventitia 1a and the posterior adventitia 1b, and the top edge line 2c of the intima 2 is lower than the top edge lines 1c of the anterior and posterior adventitia. In this embodiment, the size of the anterior and posterior adventitia is the same, and the width of the intima is the same as that of the adventitia.

[0037] The top heat sealing line 5 bonds the top of the front outer film 1a and the rear outer film 1b.

[0038] An inflatable channel 3 is formed be...

Embodiment 2

[0049] This embodiment is similar to Embodiment 1, the difference is that it adopts another air valve opening method: a heat seal point 10 is applied on the anterior adventitia and the heat-resistant block, so that the anterior adventitia is in the airway when the inflation port is inflated. The inner membrane bonded to it is pulled apart due to swelling.

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Abstract

The invention provides a three-layer air-sealed body, which includes two layers of outer films on the outside, and a layer of inner film between the two layers of outer films; it also includes: a plurality of air chambers, an inflatable channel, and a heat-sealed middle part line and longitudinal heat-sealing line; the upper inner wall of the inner film is provided with heat-resistant blocks coated with heat-resistant materials; the middle heat-sealing line spans each heat-resistant block and the longitudinal heat-sealing line, and the two outer films It is bonded to the part of the inner film that is not provided with a heat-resistant block, and separates the inflatable channel and the air chamber; the inflatable channel is formed between the two outer films on the side of the heat-sealing line in the middle; the air inlet is set on the inner film At the heat-resistant block between two adjacent longitudinal heat-sealing lines between one layer of the outer film, the air inlet connects the air-inflating passage with the air chamber. The invention replaces the traditional four-layer membrane structure with a three-layer membrane structure, saves materials, has faster air intake speed, smaller self-weight, less wrinkles during air intake, and uniform air intake.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of packaging consumables, in particular to a novel air sealing body, which is composed of three layers of film. [0003] 【Background technique】 [0004] The air-tight body is widely used because of its good anti-shock and anti-drop performance. The prior art is: an air-tight body, including an anterior adventitia, a posterior adventitia, an anterior intima and a posterior intima between the anterior adventitia and the posterior adventitia, a plurality of air chambers, an air-filled channel, The middle heat-sealing line and the longitudinal heat-sealing line; the upper inner wall of the anterior intima and / or the posterior intima is provided with heat-resistant blocks at intervals, and the heat-resistant blocks are coated with heat-resistant materials; the middle heat-sealing line spans each heat-resistant block and Longitudinal heat-sealing line, bonding the anterior outer membrane, anterior inner m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D81/03
CPCB65D81/03
Inventor 谢德
Owner 广东艾贝克新材料有限公司
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