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Gas sealing body

A gas-tight, main body technology, applied in the direction of preventing mechanical damage to containers, containers, packaging, etc., can solve problems such as easy to be torn, accelerated air leakage, etc.

Inactive Publication Date: 2017-12-22
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

[0006] To sum up, the existing gas sealing body has the defects that the above-mentioned top 901 is easily torn when it is inflated, and the gas leakage is accelerated at the air inlet after inflation due to the stretching of the inner membrane.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0029] The main improvement of the present invention is on the one hand the shape of the isolation heat-sealing line and its positional relationship with the T-shaped heat-resistant block, and on the other hand the inner film material, so the difference in the first aspect can also be compared image 3 inferred. The following mainly describes the differences in detail, and those skilled in the art can fully implement the present embodiment according to the content introduced in the prior art. see Figure 5 , by the upper heat-sealing line 5, the middle heat-sealing line 6 and Figure 5 In the inflation channel 11 surrounded by the leftmost longitudinal side seal line in the center, there are the top of the T-shaped heat-resistant block and the top of the isolation heat-sealing line, so these two tops are also above the heat-sealing line 6 in the middle.

[0030] see Figure 6 , the isolation heat-sealing line 9 is on the upper part of the longitudinal heat-sealing line 8, a...

no. 2 example

[0035] Only the difference between this example and the first embodiment will be described below. This case is characterized by only one piece of intima, as in Figure 7 When the first step of heat sealing is shown, the T-shaped heat-resistant block 10 on the inner film should be on the surface facing the outer film 1.

Embodiment approach

[0037] The specific form of the gas sealing body of the present invention can be a flat pad as disclosed in CN1903678, or a U-shaped bag as disclosed in CN1903677A, or a C-shaped bag as disclosed in CN1903675A, or a J-shaped bag as disclosed in CN1903676A, or other suitable for being used. The special form of the appearance characteristics of the packaged goods, such as the shockproof sleeve disclosed in CN102107750A, these forms are all gas-tight bodies referred to in the present invention.

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Abstract

The invention relates to a packaging material with shock absorbing performance, and discloses an improved gas sealing body. The gas sealing body comprises a main body which is formed by superposing two outer films and two inner films, wherein T-shaped heat-resistant blocks are arranged on the surface, which faces towards the other inner film, of one inner film in a spaced mode; an upper heat-sealing line, a branched isolating heat-sealing line, a middle heat-sealing line, a lower heat-sealing line and a longitudinal heat-sealing line are arranged on the main body; the tops of the T-shaped heat-resistant blocks and the top of the isolating heat-sealing line are positioned above the middle heat-sealing line; the top end of the isolating heat-sealing line is lower than or flush to the top ends of the T-shaped heat-resistant blocks; and the top end of the isolating heat-sealing line is positioned within an area of the T-shaped heat-resistant blocks. The gas sealing body has the advantages of being smooth in air inflation, high in yield and capable of preventing a gas chamber form leaking gas.

Description

technical field [0001] This invention relates to wrapping materials having shock-absorbing properties, and in particular to gas-tight bodies made of plastic film. Background technique [0002] The gas sealing body referred to in the present invention refers to a gas sealing body composed of a plurality of air column cavities formed by bonding or heat welding of plastic films in terms of structural principles, and the multiple air column cavities are inflated. [0003] Patent document CN105501673A discloses an air sealing body, see figure 1 and figure 2 , the thin solid line in the two figures represents the outline of the parts, the thick solid line represents the heat-sealing line, and the dotted line represents that the two inner films are not bonded after heat sealing, while the outer film and the adjacent intima adhesion. The main body of the air-tight body is composed of an outer membrane 1, an outer membrane 4, an inner membrane 2 and an inner membrane 3 arranged b...

Claims

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Application Information

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IPC IPC(8): B65D81/05
CPCB65D81/052
Inventor 谢德
Owner 广东艾贝克新材料有限公司
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