Prinsip Desain Kantong Plastik

Kantong plastik dapat dilihat di mana -mana dalam kehidupan sehari -hari . sebenarnya ada banyak prinsip halus di balik desain mereka yang tampaknya sederhana .

First of all, in terms of material selection, plastic bags are mostly made of high molecular polymers such as polyethylene. Polyethylene has good flexibility and ductility, which allows plastic bags to be made into various shapes and sizes without breaking easily. At the same time, it also has a certain chemical stability, is not easy to react with common substances, and can adapt well to different use environments, such as Mampu menampung berbagai item dengan nilai pH yang berbeda .

Dalam hal desain struktural, kantong plastik umumnya merupakan struktur double-piece, dan mulut tas disegel oleh proses penyegelan panas . di satu sisi, desain struktural ini memfasilitasi pemuatan dan pembongkaran barang, dan di sisi lain dan memanaskan barang-barang di dalam hal-hal yang disegel di dalam kantong . yang baik dapat mencegah kantung di dalam kantung di dalam kantong yang dapat dipahami, dapat mencegah kantung di dalam kantong, dan menyegel. Kelembaban, debu, dll . dari memasuki tas dari luar, memperpanjang umur simpan item .

From a mechanical point of view, plastic bags are designed with load-bearing capacity in mind. Its bag wall has a certain thickness, and the appropriate strength is achieved by reasonably distributing the amount of plastic material in the bag body. When filled with items, all parts of the bag can be evenly stressed to avoid rupture due to excessive local stress.

In addition, plastic bags also focus on portability design. Many plastic bags are designed with handles, and the shape and connection method of the handles are carefully considered. For example, the handles are usually wider, which is done to increase the mechanical action area and reduce the force per unit area, making it easier and more comfortable for people to lift, and convenient for people to use plastic bags in shopping, transportation and other skenario .