2. The basic quality requirements of flexible packaging.(1) BagNo obvious wrinkles, scratches, air bubbles should be applied to the bag. The color of the bag should be uniform. The sealing of the bag should be firm, and there should be no openings, perforations, or leakage (paste). The composite bag
READ MORECosmetic packaging materials are divided into internal packaging and outsourcing, and can also be divided into soft packaging and hard packaging. The quality of packaging materials directly determines the brand image of the product. Therefore, I specially focus on packaging materials and integrate t
READ MORE