Surface treatment technology of lipstick tube for cosmetic packaging

Lipstick tube is the most complex of all cosmetic packaging materials. Lipstick tube is composed of multiple components. Different materials constitute functional packaging. From the aspect of material body, it is also divided into volatile and non-volatile (airtight / non airtight). In addition, most of filling is automatic machine filling (pre filling, post filling, direct filling, etc.), including the filling method of lipstick tube, which is different The combination of parts, poor tolerance control, or unreasonable design, even if the way of lubricating oil coating is wrong, will cause shutdown or abnormal function.


1. Basic materials

Lipstick pipes are divided into plastic lipstick pipes and aluminum plastic composite pipes. The commonly used plastic materials are PC, ABS, PMMA, ABS + San, San, PCTA, PP, etc., while aluminum models are commonly 1070, 5657, etc. Some users use zinc alloy, sheepskin and other materials as materials for lipstick tube accessories in order to show that the product temperament is consistent with the brand tonality.


2. Forming process

The plastic material of lipstick tube is mainly injection molding process, such as cover, base and relevant accessories in the middle core.


3. Surface treatment

There are many surface treatment processes available for lipstick tube. For plastic accessories, surface treatment processes such as spraying, electroplating, evaporation, laser engraving, inserts, etc. can be used, while for aluminum products, oxidation electroplating, anode treatment process, etc.


4. Graphic printing

The cover and base of the lipstick tube can be used for the processing of image and text information based on the user's requirements by using the processes of silk screen printing, bronzing / silver, pad printing, heat transfer printing, water transfer printing, etc.