Detecting method for flexible packing products air tightness

A detection method and flexible packaging technology, which are applied in the direction of liquid/vacuum measurement for liquid tightness, etc., can solve the problems of fragile sensitivity and fragile sensitivity of flexible packaging batteries.

Active Publication Date: 2008-03-12
ZHENGZHOU BAK BATTERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem in the prior art that the airtightness of flexible packaging products is easily damaged and the sensitivity is poor, and to provide a method for detecting the airtightness of flexible packaging products that is not easy to be damaged and has high precision when testing airtightness
[0004] Another object of the present invention is to solve the problem of easy damage and poor sensitivity of flexible packaging batteries in the prior art when testing the airtightness, and provide a detection method for the airtightness of flexible packaging batteries that is not easy to be damaged and has high precision when testing airtightness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] This example takes soft-packaged food as an example to state the detection method of the present invention:

[0023] First place one or more soft-packaged foods to be tested in an airtight container, then fill the airtight container with helium and keep it for 10 seconds; then place the soft-packaged food to be tested in an airtight container, and vacuumize the container To 0.1Mpa and keep it for 10s, at the same time, use a helium detection device to detect the inside of the airtight container. The detection is a detection device that is purchased on the market and is sensitive to helium detection. After the detection of the detection device, see if there are helium atoms in the airtight container and whether the content in the air exceeds the content in the air; if it exceeds, it means that the soft package battery leaks, otherwise it does not leak; if there is a leak, put more than one of the above The flexible packaging food to be tested is tested repeatedly, and th...

Embodiment 2

[0025] This example takes the flexible package battery as an example to state the detection method of the present invention:

[0026] First place one or more soft-packaged batteries to be tested in an airtight container, and evacuate the airtight container to 0.1MPa for 10s; then fill the airtight container with helium and keep it for 10s; then use the helium in the airtight container Air or other gases without helium impurities completely exhaust the helium and then seal the container, and vacuum the container to 0.1Mpa and keep it for 10s. At the same time, use a helium detection device to detect the inside of the airtight container. The detection is A detection device that is sensitive to helium detection is purchased on the market. After the detection of the detection device, see if there are helium atoms in the airtight container and whether the content in the air exceeds the content in the air; if it exceeds, it means that the soft package battery leaks, otherwise it doe...

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PUM

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Abstract

The invention provides a detection method for the air-tightness of a flexible packaging product and a flexible packaging battery; the flexible packaging product or battery is placed in a closed container and filled with detection gas, the product or battery to be detected is placed in the other closed container and vacuumized, the air-tightness of the flexible packaging product or battery to be detected can be determined by a detection device, and therefore this kind of method can implement the high-precision detection for the air-tightness of the flexible packaging product or battery; even though the flexible packaging product or battery has the slight air leakage, to select the appropriate detection gas and the sensitive detection device can implement the accurate detection for the air-tightness of the flexible packaging product or battery.

Description

technical field [0001] The invention relates to the field of product packaging, in particular to a method for detecting air tightness of soft-packaged products and soft-packaged batteries. Background technique [0002] Sealed flexible packaging products are widely used because of their small size, light weight, easy storage and many other advantages. However, there is no effective detection method for the airtightness of this flexible package. At present, there are mainly two methods for judging the airtightness of soft-packaged batteries: one is the method of visual judgment by artificial vision, which is simple, but the error is large and slight air leakage cannot be identified; the other method is that the soft-packed product is placed Pressurization or decompression in a sealed container is detected. For example, the Chinese patent publication No. CN1719218A discloses a rapid detection method for the sealing performance of a closed flexible packaging bag. Simultaneous ...

Claims

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Application Information

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IPC IPC(8): G01M3/02
Inventor 刘付勇丁景刚
Owner ZHENGZHOU BAK BATTERY CO LTD
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