自封袋雖十分便利，但密封性也同樣主要，在設(shè)計濟(jì)南自封袋時須要充足斟酌每層資料的機(jī)能、厚度，以取得足夠的阻隔機(jī)能，常見檢測自封袋密封性的方式有以下三種：

Although the self-sealing bag is very convenient and efficient, its sealing is also important. When designing the Jinan self-sealing bag, it is necessary to fully consider the function and thickness of each layer of data to obtain sufficient barrier function. There are three common ways to test the sealing of the self-sealing bag:

一、無水滲透法

1、 Anhydrous infiltration method

自封袋通常實用于在水的作用下，外層資料的機(jī)能在實驗期間會明顯下降的包裝件，如外層采取紙質(zhì)資料的包裝件。將要試樣內(nèi)充人實驗液體(如與濾紙有顯明色差的著色水溶液)，封口后將要試樣置于濾紙上，察看實驗液體從試樣內(nèi)向外的泄露情形。應(yīng)正反兩面都測。也能夠置于真空室內(nèi)，在負(fù)壓狀況下測試。

Self-sealing bags are usually used for packaging with the function of the outer layer of data significantly reduced during the experiment under the action of water, such as the packaging with the outer layer of paper data. Fill the test sample with test liquid (such as colored water solution with obvious color difference from the filter paper). After sealing, place the test sample on the filter paper and observe the leakage of the test liquid from the inside to the outside of the sample. It should be measured on both sides. It can also be placed in a vacuum chamber and tested under negative pressure.

二、水中城壓

2、 Urban water pressure

自封袋通常實用于在水的作用下，外層資料的機(jī)能在實驗期間不會明顯下降的包裝件，如外層采取塑料薄膜的包裝件。通過對真空室抽真空，使浸在水中的試樣發(fā)生內(nèi)外壓差，觀測實驗內(nèi)氣體外逸或水向內(nèi)滲透情形，以此測定試樣的密封機(jī)能。測定密封機(jī)能常用的手腕就是帶真率的實驗安裝。

Self-sealing bags are usually used for packaging with the function of the outer layer of data not significantly decreased during the experiment under the action of water, such as packaging with the outer layer of plastic film. By vacuuming the vacuum chamber, make the sample immersed in water have internal and external pressure difference, observe the gas escape or water penetration in the experiment, and determine the sealing function of the sample. The wrist commonly used to measure the sealing function is the experimental installation with authenticity.

三、真空察看法

3、 Vacuum observation

自封袋實用資料同上。通過對真空空抽真空，使試樣發(fā)生內(nèi)外壓差，觀測試樣膨脹及開釋真空后試樣外形的恢復(fù)情形，以此斷定試樣的密封機(jī)能。

The practical information of self-sealing bag is the same as above. The sealing function of the sample is determined by vacuuming the sample to make the internal and external pressure difference, observing the recovery of the sample shape after the expansion and release of the vacuum.

自封袋

Self-sealing bag

以上內(nèi)容便是自封袋檢測密封性的方法，希望能夠?qū)Υ蠹矣兴鶐椭?。如果想要了解更多關(guān)于自封袋的相關(guān)內(nèi)容，歡迎關(guān)注我們網(wǎng)站http://www.673338.com.cn！

The above contents are the methods for testing the sealing of self-sealing bags. I hope they can help you. If you want to know more about self-sealing bags, please visit our website http://www.673338.com.cn ！