Non-destructive sealer - a new leak detection solution for bagged milk powder

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With the expansion of the market for bagged milk powder, the standards for packaging testing have also gradually increased, which will help extend the shelf life to ensure the safety of mass production. The use of modified atmosphere packaging (MAP) in milk powder poses a high risk of quality control. Most atmospheric packaging (MAP) uses a nitrogen-filled process, so testing the quality of a package's seal involves the packaged gas content of the sample's milk bag within a few days of packaging. There will be two problems with this:

• The product line is sufficient to produce 100,000 bags of powdered milk before a serious leak is discovered;

• A 50-micron leak point increases the oxygen content of milk powder packaging from 0.5% to 1% within seven days.

Many products based on dairy products allow the bacteria to consume most of the O2 before detecting the increase in O2 content with gas testing instruments. A small 10-micron leak point can make common dairy products with a shelf life of, for example, 12-24 months. The shelf life drops sharply, but these leaks cannot be detected with current gas measurement methods.

Leak testing through "water testing" is being used by more and more direct packaging tests. However, the “water detection method” can detect a leakage of 25 μm in the best case, and during the test, due to the expansion of the packaging in water, the “water detection method” can only detect a leakage of >50 μm in most cases. hole.

Despite the enormous challenges faced in the testing of sealability of dairy products, the cost of testing is high, and the production of other powder products also faces similar testing requirements. Most powder products have a high unit cost and are sensitive to moisture and oxygen. Therefore, the increase of moisture and oxygen in the package will greatly shorten the shelf life of the product.

Non-destructive sealer Veripac-D - specially developed for the detection of bagged milk powder

The Veripac-D series of non-destructive sealers is a practical alternative to destructive testing because it eliminates subjective test results. The "hydrographic method" will also increase the risk of bacterial and water contamination during the packaging process. Related cases have confirmed that vacuum decay test technology provides faster return on investment than destructive testing methods. Qualified packaging will not be discarded, significantly reducing the amount of waste generated during the sealing test. As a result, huge inventories are built up at the production and retail levels, reducing production costs. PTI lossless sealing device Veripac-D includes a series of proven capable of non-destructive testing of packaging ability on the production line, thus reducing waste and improving the ability of the test. This series of seal testers can detect leaks as small as 10 microns and identify leaks before they become severe. The patented flexible film chamber (FLEX-Chamber) does not need to replace the test chamber when testing different sizes of pouches, nor is it affected by the packaging form. At the same time , the Veripac-D series of non-destructive sealers can test multiple packages in the same test cycle. The seal tester Veripac-D series provides qualitative test results: pass/fail and provides data related to leak rate and leak size.