Lipstick is the general term for all lip makeup. Lipsticks include lipsticks, lip sticks, lip glosses, lip glazes, etc., which can make the lips rosy and lustrous, to moisturize, protect the lips, increase the beauty of the face and correct the contours of the lips, and make a lipstick for the lipstick products. Tube packaging materials, because of the complex structure and function, so the quality is also difficult to control. Therefore, the structural quality requirements of the cosmetic packaging material lipstick tube have the following points:
First, the basic structure requirements of lipstick tube
1. Material: It must be processed by the materials determined by the contract of both parties. It should not be used for production and assembly of improper original materials.
2, size: tube height dimension deviation ≤ 0.1mm; with the outer cover under the appropriate torque, the outer cover buckle smooth, the outer cover and tube gap ≤ 0.1mm. Beads (beads, forks, spirals) should be sized to fit the design and seal size.
3. Weight: The weight or seal sample confirmed by both parties shall prevail.
Second, the structural requirements of the lipstick tube
1. Cover/bottom opening tension: The opening force should be between 0.2 and 2 kg force (between 1.96N and 19.6N).
2, the middle beam and the base pull-out force: should be 4 kg force (39.23N).
3. Rotating force: The rotating torque should be between 0.1N.m and 0.5N.m. There should be no obvious sound due to too tight, and if the sliding wire is produced after screwing to the lower end, the torque of the sliding wire should be ≥0.4N.m.
4, the middle beam: rotating the base, the middle beam must not be eccentric (after loading, rotating the base will cause the material body to scratch).
5. Matching of the pipe cover: Compared with the sealing sample, the pipe and the cover are allowed to have a tolerance of 0.5mm, and the pipe diameter and the production mold must be matched properly.
Third, the handle requirements of the lipstick tube
The touch on the surface of the lipstick tube is flat, and it is easy to be elastic, without obvious blockage and step feeling when rotating the lipstick tube.
