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What is the difference between plastic bottles and glass bottles for cosmetics

Update: 21-06-2019

Cosmetic glass bottles: Glass bottles are traditional p […]

Cosmetic glass bottles:
Glass bottles are traditional packaging products, which are characterized by bright and transparent, good chemical stability, non-breathable and easy to form, but they are heavy and fragile. 80%-90% of glass packaging containers are glass bottles and cans. Soda-lime glass bottles are usually used in a density of 2.5-2.6 g/cm3, which is brittle and has low thermal conductivity. It can be made into emerald green, dark green, light cyan, amber glass with metal ion colorant. Advantages of glass packaging container: (1) good chemical stability, non-toxic and tasteless, hygienic and clean, no adverse effect on packaging; (2) good barrier property, can provide good quality conditions; (3) good transparency, The contents are clearly visible; (4) the rigidity is good and the deformation is not easy; (5) the molding processability is good, and can be processed into various shapes; (6) the temperature tolerance is good, the temperature can be sterilized, and the storage can be low temperature; (7) ) It is rich in raw materials, can be recycled and reused, and has no pollution to the environment. Disadvantages of glass packaging containers; (1) large brittleness, easy to break; (2) heavy weight, high transportation costs; (3) high energy consumption during processing, serious environmental pollution; (4) poor printing performance.
Cosmetic plastic bottle:
Plastic is a polymer synthetic material with many types. The advantages are: (1) good mechanical properties, light weight, convenient storage and transportation, easy to carry and use; (2) good barrier, good sealing and high transparency; (3) processing Good performance, can be made into bottles, covers, films, bags and composite packaging materials of various sizes; (4) decorative coloring and printing performance. Drug identification, instructions, signs, barcodes can be directly inkjet or printed on plastic materials, and will not fall off; (5) good chemical stability, weak toxicity, health and safety. The lid of the medicine can be made into a safety cover or a pressure cover, as well as an anti-counterfeit mark and the like. The disadvantage of the plastic packaging container is that it is easy to carry static electricity, the surface is easily contaminated, and the discarded materials may cause environmental pollution, and the recycling process is difficult.
It can be seen from the above comparison that both have advantages and disadvantages, but on the whole, cosmetic glass bottles have good sealing performance, stable chemical properties, and high-grade materials, which can effectively ensure that the contents are not deteriorated for a long time, and are also cosmetic packaging. Ideal.