Today, the manufacturer of cosmetic tube will talk to you about the some knowledge of cosmetic plastic tubes.
Mechanical properties of plastic cosmetic tubes:
Impact resistance, puncture resistance, flexibility, tensile strength above 10MPa.
Chemical stability of cosmetic plastic tube:
A. Not affected by water at room temperature;
B, resistant to most dilute acids;
C. Generally not affected by alcohols, aldehydes, ketones and esters;
D. It is less affected by halogen at room temperature;
E. At room temperature, it will cause a certain degree of expansion due to the action of aromatic hydrocarbons, aliphatic hydrocarbons and halogen hydrocarbons;
F. Slight absorption of oil, mineral oil and essential oil will dissipate through polyethylene;
G. Stress cracking may occur under the action of stress cracking agent. Common stress cracking agents are detergents, soaps, oils, fats, hydroxides of alkali metals, etc.
Weather resistance of cosmetic plastic tube:
Under the action of ultraviolet rays and high-energy radiation, it will degrade in the air, resulting in discoloration, surface cracking or even embrittlement, loss of strength and loss of use value. A weather-resistant formula should be used, that is, adding ultraviolet absorbers, light shielding agents or light quenching. Killer etc.
Cosmetic plastic tube barrier properties:
It has excellent barrier properties for the transmission of water vapor, and the higher the density, the stronger the barrier properties.
Hygienic performance of plastic cosmetic tube:
Comply with food hygiene standards. Non-toxic, odorless, can be directly contacted with cosmetics, food and medicine.
Cosmetic plastic tube molding performance:
Can be extruded, easy to heat seal, good thermal stability, good fluidity, excellent molding performance (any common plastic molding processing methods can be used).
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