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Cosmetic color cosmetic packaging material surface spraying

The coatings required for plastic bottles have the following elements:
1. Resin;

2. Pigment;

3. Solvent;

4. Other additives.

The types of paint drying are as follows:
1. Volatile drying (evaporative drying with diluent);

2. Fusion drying (molecules and molecules are polymerized due to volatilization);

3. Oxidative drying (unsaturated fatty acids combine with oxygen in the air);

4. Drying by bridging reaction (using bridging agent, so-called hardener to form bridging and hardening);

5. Ultraviolet hardening (unsaturated polyesters are added to the agent and then irradiated by ultraviolet wavelengths of 300-400mn, and then the molecules are polymerized and hardened).