We all know that tin case commonly known as tin, tin box, which is made of tin cans. Tin is the tin on the surface of the iron cross, in order to protect. In general, for the sake of exquisite packaging, printed tinplate cans will adopt, commonly known as the printing tins. Another tin case according to the classification can be divided into round shape tank containers, rectangle, square cans, oval, heart-shaped and special-shaped cans (car form/cartoon animal form), etc.
Requires a high degree of tinplate cans for the closure, because of the packaging container of air and other volatile gas barrier property of nutrition and sensory quality of preservation is very important. Comparing all kinds of fruit juice packaging container can prove, containers of oxygen transmittance directly affect the Browning of fruit juice and vitamin C. Low oxygen transmittance of metal cans, glass bottles and aluminum foil adhesive laminated, good cartons to the preservation of vitamin C in tinplate cans best again among them.