Tamper Evident Technique on Closures had been become the topic several times in the past. Recent remarked technical development is on the plastic closures for PET bottle for soft drinks. The material of Plastic closures have the feature of elasticity and thermal depend- ence. Then, it is necessary the different way of technical approach from metal closures like PP cap. This is only demand in Japanese market at present, on the closures for non- carbonated drinks, it is important technique that the opening of closure is clearly indi- cated before breakage of sealing performance.
展开▼
