The difference between glass cosmetic jar and plastic
Cosmetic glass material:
The glass bottle is a traditional packaging product. Its characteristics are: bright and transparent, good chemical stability, airtight, easy to shape, but heavy and easy to break. 80%-90% of glass packaging containers are glass bottles and cans. Usually, the density of soda lime glass bottle is 2.5-2.6g/cm3, which is brittle and low thermal conductivity. Metal ion colorants can be used to produce emerald green, dark green, light cyan and amber glass.
The advantages of glass packaging containers: (1) Good chemical stability, non-toxic, odorless, hygienic and clean, without any adverse effects on the packaging; (2) Good barrier properties, can provide good quality guarantee conditions; (3) Good transparency, The contents are clearly visible; (4) Good rigidity and not easy to deform; (5) Good molding processability and can be processed into a variety of shapes; (6) Good temperature tolerance, high temperature sterilization, and low temperature storage; (7) ) The raw materials are abundant, can be recycled and reused, and have no pollution to the environment. The shortcomings of glass packaging containers: (1) brittle and easy to break; (2) heavy weight and high transportation costs; (3) high energy consumption during processing and serious environmental pollution; (4) poor printing performance.
Cosmetic plastic material:
Plastic is a high-molecular synthetic material with many types. The advantages are: (1) Good mechanical properties, light weight, convenient storage and transportation, and easy to carry; (2) Barrier, good sealing, and high transparency; (3) Processing It has good performance and can be manufactured into various sizes of bottles, caps, films, bags and composite packaging materials; (4) Good decorative coloring and printing performance. Drug labels, instructions, signs, and bar codes can be directly inkjet or printed on plastic materials, and will not fall off; (5) Good chemical stability, low toxicity, hygiene and safety. The caps of medicines can be made into insurance caps or pressure caps, as well as anti-counterfeiting labels and so on. The disadvantages of plastic packaging containers are that they are easily charged with static electricity, and the surface is easily contaminated. Discarded materials can cause environmental pollution and it is difficult to recycle.
From the above comparison, it can be seen that the two have their own advantages and disadvantages. However, as a whole, the cosmetic glass material has good sealing performance, stable chemical properties, and high-grade materials, which can effectively ensure that the content does not deteriorate for a long time, and it is a cosmetic packaging. Ideal choice.