冷封包装是在包装材料表面涂覆自然乳胶而形成的包装形式。把带有乳胶涂层的两片基材沿涂层面相互压紧,基材不需热封就能牢固粘接。人们对冷封包装的了解开始于自粘接现象。这就是在压力或应力下,同类材料的粘接作用。当材料具有自粘力时,压力越大,其连结力(两片材料间的接合力)也就越强。粘接概念是理解冷封包装原理的基 Cold-sealed packaging is the surface of the packaging material coated with natural latex form of packaging. The two substrates with latex coating are pressed against each other along the coating surface, and the substrate can be firmly adhered without heat sealing. People’s understanding of cold-sealed packaging starts with self-bonding. This is the pressure or stress, the bonding of similar materials. When the material has self-adhesive force, the greater the pressure, the stronger its joining force (the bonding force between the two sheets of material). The concept of bonding is to understand the basis of cold-sealed packaging principle