测试方法：足够的染色液被向球囊包装袋内注入，使能覆盖包装袋最长边，深约

Test method: Enough staining solution is injected into the balloon packaging bag to cover the longest side of the packaging bag with a depth of about 5mm, so that the staining solution is kept in contact with the sealed edge for 5-20s. The packaging bag is rotated as needed to seal all sides in contact with the dyeing solution. The sealed area is inspected by transparency.

Test method: enough dyeing fluid is injected into the balloon bag to cover the longest side of the bag, about 5mm deep, so that the dyeing fluid is kept in contact with the sealing edge 5-20s. The bag rotates as needed so that each side is sealed in contact with the dyeing fluid. The sealing area is inspected by transparent face force.

Test method: enough dye was injected into the balloon bag to cover the longest side of the bag with a depth of about 5mm. The dye solution was kept in contact with the sealing edge for 5-20s. The packaging bag is rotated as required to make all sides of the package seal contact with the dye solution. Visual inspection of sealing area by transparent surface.<br>