1) Welding at an oblique angle is a popular method in the European market. It has the characteristics of convenient dumping, filling, and good-looking shelf placement. It is generally used for supplementary packaging of more than 300 ml.
2) Welded on the top, generally used for small packages of less than 100ml.
3) Welding on a flat surface is very common in the United States. It is mainly used for large-volume industrial product packaging. There are usually cartons outside.
According to the function, the capped flexible packaging used in daily chemical products can be divided into refill and final packaging. Refilling refers to the packaging that uses bottle packaging as the used packaging and uses the capped flexible packaging as the packaging for the second or multiple replenishment of the contents. The final packaging refers to: there is no other packaging used, and the flexible packaging with a cover is the packaging used by the consumer.