CN1719218A - Fast detecting method for sealing performance of closed flexible package bag - Google Patents
Fast detecting method for sealing performance of closed flexible package bag Download PDFInfo
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- CN1719218A CN1719218A CN 200510041136 CN200510041136A CN1719218A CN 1719218 A CN1719218 A CN 1719218A CN 200510041136 CN200510041136 CN 200510041136 CN 200510041136 A CN200510041136 A CN 200510041136A CN 1719218 A CN1719218 A CN 1719218A
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- packaging bag
- soft packaging
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- flexible package
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Abstract
The present invention discloses a sealability quick detection method of closed flexible package bag. Said method includes the following steps: placing the completely-closed flexible package bag sample and closed flexible package bag to be detected into a container, closing the container cover, air-inflating said container to reach the rated pressure of package bag and retaining the constant pressure for a certain time, finally quickly opening said sealing cover of container and observing the volume change of two package bags so as to obtain the sealability of the detected package bag.
Description
One, technical field
The present invention relates to a kind of seal of vessel performance detection method, specifically a kind of fast detecting method for sealing performance of closed flexible package bag.
Two, background technology
At present, the use of soft packaging bag is more and more general, and is also more and more higher to the sealing property requirement of closed flexible package bag, thereby the detection of sealing performance of closed flexible package bag is just seemed extremely important.About the flexible packaging Leak Detection, still there is not effective detection method at present, generally be outward appearance by its sealing place of visual inspection, the shortcoming of this detection method is: accuracy of detection and efficient are all very low.
Three, summary of the invention
The purpose of this invention is to provide that a kind of method of operating is simple, testing result fast detecting method for sealing performance of closed flexible package bag accurately.Use the once a plurality of soft packaging bag sealing properties of while fast detecting of this method
The objective of the invention is to be achieved through the following technical solutions:
A kind of fast detecting method for sealing performance of closed flexible package bag is characterized in that it may further comprise the steps:
A) intact soft packaging bag sample and closed flexible package bag to be measured be will seal and container and covered and enclosed placed together.
B) in airtight container, inflate, be forced into the rated pressure and the constant voltage of packaging bag to be measured.Among the present invention, can apply 1 relative atmospheric pressure, and constant voltage, constant voltage time should be greater than 5 times of the leak time under the packaging bag rated pressure, and the computing formula of leak time is: leak time={ (soft packaging bag gas volume to be measured/constant voltage absolute pressure) * 5%}/(predetermined detection minimum leakage amount); At this moment, seal intact soft packaging bag sample volume and then can change 10%, if soft packaging bag to be measured has leakage, volume no change then; Soft packaging bag leakage rate to be measured is little, and then volume only compresses 5%.
C) quick opening container gland bonnet is observed tested soft packaging bag and the intact soft packaging bag volume change difference of sealing, obtains soft packaging bag sealing property to be measured.Among the present invention, during the quick opening container gland bonnet, seal intact soft packaging bag sample and can recover original volume; Soft packaging bag to be measured does not have leakage, then can recover original volume; Soft packaging bag leakage rate to be measured is little, and then volume can expand 10%; Soft packaging bag leakage rate to be measured is big, then the volume no change.
Utilization of the present invention is to sealing the pressurization of soft packaging bag external sync and the decompression of intact soft packaging bag sample and sealing to be measured, relatively tested flexible packaging and the intact soft packaging bag sample volume of sealing changes difference in this process, judges soft packaging bag seal degree to be measured.When practical operation, can be simultaneously to sealing the pressurization of soft packaging bag external sync and the decompression of intact soft packaging bag sample and a plurality of sealing to be measured, relatively a plurality of tested flexible packagings and the intact soft packaging bag volume change difference of sealing in this process are judged each soft packaging bag seal degree to be measured.Compared with prior art, method of operating of the present invention is simple, detection speed is fast, testing result is accurate, once a plurality of soft packaging bag sealing properties of while fast detecting.
Four, embodiment
A kind of fast detecting method for sealing performance of closed flexible package bag of the present invention at first will seal intact soft packaging bag sample and closed flexible package bag to be measured and insert in the container, airtight good container cover; Then to being inflated to packaging bag rated pressure and constant voltage a period of time in the container; Last quick opening container gland bonnet is observed tested soft packaging bag and the intact soft packaging bag volume change difference of sealing, obtains soft packaging bag sealing property to be measured.By the container view window relatively in this process tested soft packaging bag and the intact soft packaging bag sample volume of sealing change difference, the volume change of packaging bag sample can be 10%, i.e. the measures of dispersion that can judge of normal eye.When tested soft packaging bag gas comprises cumulative volume 20%, apply 1 relative atmospheric pressure, seal intact soft packaging bag sample volume and can compress 10% this moment, as soft packaging bag to be measured leakage arranged, then the volume no change; Little as soft packaging bag leakage rate to be measured, then volume only compresses 5%, and when the quick opening container gland bonnet, this soft packaging bag volume can expand 10%, can recover original volume and seal intact soft packaging bag sample.When using sensitiveer cubing equipment then can detect littler leakage rate.Constant voltage time should fully enter in the soft packaging bag of leakage to guarantee gas greater than 5 times of the leak time under the packaging bag rated pressure.
Leak time is determined by following formula: leak time={ (soft packaging bag gas volume to be measured/constant voltage absolute pressure) * 5%}/(predetermined detection minimum leakage amount).
If: predetermined detection minimum leakage amount=0.1 milliliters/second, soft packaging bag to be measured contain gas volume=100 milliliter,
Visual inspection sensitivity=5%, rated pressure=1 atmospheric pressure;
Then: constant voltage absolute pressure=standard air atmospheric pressure+rated pressure=1+1=2;
Leak time={ (100 milliliters/2 absolute pressure) * 0.05}/{ 0.1 (milliliters/second) }=25 seconds.
Claims (3)
1, a kind of fast detecting method for sealing performance of closed flexible package bag is characterized in that it may further comprise the steps:
A) intact soft packaging bag sample and closed flexible package bag to be measured be will seal and container and covered and enclosed placed together;
B) in airtight container, inflate, be forced into the rated pressure and the constant voltage of packaging bag to be measured;
C) quick opening container gland bonnet is observed tested soft packaging bag and the intact soft packaging bag volume change difference of sealing, obtains soft packaging bag sealing property to be measured.
2, fast detecting method for sealing performance of closed flexible package bag according to claim 1, it is characterized in that: at step B) in, apply 1 relative atmospheric pressure, and constant voltage, constant voltage time should be greater than 5 times of the leak time under the packaging bag rated pressure, the computing formula of leak time is leak time={ (soft packaging bag gas volume to be measured/constant voltage absolute pressure) * 5%}/(predetermined detection minimum leakage amount); Seal intact soft packaging bag sample volume and then can change 10%, soft packaging bag to be measured has leakage, then the volume no change; Soft packaging bag leakage rate to be measured is little, and then volume only compresses 5%.
3, fast detecting method for sealing performance of closed flexible package bag according to claim 1 is characterized in that: at step C) in, during the quick opening container gland bonnet, seal intact soft packaging bag sample and can recover original volume; Soft packaging bag to be measured does not have leakage, then can recover original volume; Soft packaging bag leakage rate to be measured is little, and then volume can expand 10%; Soft packaging bag leakage rate to be measured is big, then the volume no change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510041136 CN1719218A (en) | 2005-07-22 | 2005-07-22 | Fast detecting method for sealing performance of closed flexible package bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510041136 CN1719218A (en) | 2005-07-22 | 2005-07-22 | Fast detecting method for sealing performance of closed flexible package bag |
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| Publication Number | Publication Date |
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| CN1719218A true CN1719218A (en) | 2006-01-11 |
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| CN 200510041136 Pending CN1719218A (en) | 2005-07-22 | 2005-07-22 | Fast detecting method for sealing performance of closed flexible package bag |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103026197A (en) * | 2010-06-17 | 2013-04-03 | 日产自动车株式会社 | Air tightness test method and air tightness test device for sealed batteries |
| CN103424235A (en) * | 2013-08-30 | 2013-12-04 | 玉树华王投资有限公司 | Plastic bucket automatic leak detection system and method |
| CN103983405A (en) * | 2014-05-29 | 2014-08-13 | 中船重工(重庆)海装风电设备有限公司 | Sealing performance detection method and device for pivotal bearing |
| CN104568347A (en) * | 2014-12-22 | 2015-04-29 | 浙江中烟工业有限责任公司 | Testing device and testing method for testing leakage of small cigarette case |
| CN104614136A (en) * | 2014-12-22 | 2015-05-13 | 浙江中烟工业有限责任公司 | Vacuum decay method for testing leak of cigarette packaging body |
| CN105841881A (en) * | 2016-03-21 | 2016-08-10 | 张�杰 | Vacuum degree detection structure and detection method of external compound packaged five-layer coextrusion infusion bag |
| CN103026197B (en) * | 2010-06-17 | 2016-12-14 | 日产自动车株式会社 | The airtight inspection method of enclosed cell and airtight inspection device |
| CN106323570A (en) * | 2016-11-09 | 2017-01-11 | 深圳市欧盛自动化有限公司 | Method for detecting liquid leakage of soft-packing battery and leakage detector |
| CN113758638A (en) * | 2021-10-12 | 2021-12-07 | 云南星桥食品有限公司 | Quick detection device and detection method for rice noodle food |
-
2005
- 2005-07-22 CN CN 200510041136 patent/CN1719218A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103026197A (en) * | 2010-06-17 | 2013-04-03 | 日产自动车株式会社 | Air tightness test method and air tightness test device for sealed batteries |
| CN103026197B (en) * | 2010-06-17 | 2016-12-14 | 日产自动车株式会社 | The airtight inspection method of enclosed cell and airtight inspection device |
| CN103424235A (en) * | 2013-08-30 | 2013-12-04 | 玉树华王投资有限公司 | Plastic bucket automatic leak detection system and method |
| CN103983405A (en) * | 2014-05-29 | 2014-08-13 | 中船重工(重庆)海装风电设备有限公司 | Sealing performance detection method and device for pivotal bearing |
| CN103983405B (en) * | 2014-05-29 | 2016-08-24 | 中船重工(重庆)海装风电设备有限公司 | The sealing property detecting method of floating bearing and sealing property detection device |
| CN104568347A (en) * | 2014-12-22 | 2015-04-29 | 浙江中烟工业有限责任公司 | Testing device and testing method for testing leakage of small cigarette case |
| CN104614136A (en) * | 2014-12-22 | 2015-05-13 | 浙江中烟工业有限责任公司 | Vacuum decay method for testing leak of cigarette packaging body |
| CN104568347B (en) * | 2014-12-22 | 2017-05-03 | 浙江中烟工业有限责任公司 | Testing device and testing method for testing leakage of small cigarette case |
| CN105841881A (en) * | 2016-03-21 | 2016-08-10 | 张�杰 | Vacuum degree detection structure and detection method of external compound packaged five-layer coextrusion infusion bag |
| CN106323570A (en) * | 2016-11-09 | 2017-01-11 | 深圳市欧盛自动化有限公司 | Method for detecting liquid leakage of soft-packing battery and leakage detector |
| CN113758638A (en) * | 2021-10-12 | 2021-12-07 | 云南星桥食品有限公司 | Quick detection device and detection method for rice noodle food |
| CN113758638B (en) * | 2021-10-12 | 2022-07-29 | 云南星桥食品有限公司 | Quick detection device and detection method for rice noodle food |
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