With the development of plastic film materials, composite film materials, and technological advances in automated weighing and packaging equipment, cosmetic tubes will become the main packaging form for pharmaceuticals and cosmetics in pharmaceutical and cosmetic packaging bottles. Flexible packaging is a form of packaging that has developed rapidly in recent years. There are very obvious advantages in the packaging industry:
1. The selection of materials is rich and diverse. Traditional single-layer films mainly include: regenerated fiber film, cellophane, and acetate film. In recent years, polyethylene, polypropylene, PET, nylon, vinylon, polystyrene, polycarbonate, shrink film, elastic film, aluminum foil and the like have been developed. The composite film overcomes the shortcomings of the single layer film and is an ideal new packaging material. The basic structure is paper, aluminum foil, cellophane, nylon, polyester, stretched polypropylene, etc., non-thermoplastic high-melting material is the outer layer, unstretched polypropylene, polyethylene, polyvinylidene chloride, ion crosslinking polymerization The thermoplastic material such as the material is the inner layer. A six-layer structure of high moisture-proof multilayer composite film has appeared abroad.
2. Advanced manufacturing technology and high degree of packaging automation. It can be completed at one time from feeding, film making, printing and packaging to ensure the quality of packaging. The use of single-layer film and composite film for pharmaceutical packaging is increasing rapidly. It is applied to blister packaging and ribbon packaging of tablets and capsules, single-layer medicine bags and composite film medicine bags, and outer packaging of paper packaging. Pads, etc. Suitable for single-dose packaging of tablets, powders, solutions.
