1. Gram weight: no more than 3% deviation

2. supporting: flexible rotation, moderate elasticity; no sliding teeth. The gap between the nozzle and the neck is ≤1.5mm.

3. Straw: suitable length, not easy to loose.

4. Pump-up times: liquids, emulsions ≤ 5 times; cream-like ≤ 10 times.

5. Ejection effect: The spray head needs to be fogged, and the maximum range of the spray head and the indenter must be more than 1m.

6. Weight: Generally according to the contract

7. size: contract size

8. Thickness: contracted thickness

9. Adhesion for printing / hot stamping: immersion in water for 0.5h, ozone fumigation for 0.5h, UV irradiation for 1h without printing off. 3M-810 / 3M-600 peel test, the peeling area is less than 10%. Alcohol wiping test, the inner material is swabbed for 1H, no obvious discoloration

10. Electroplating / painting adhesion: ① 3M-810 / 3M-600 100 grid test, the falling area is less than 10%. ② Alcohol wiping test, the inner material was swabbed for 1H, no obvious discoloration.

11. cooperation: tight cooperation, smooth, no loosening, smooth teeth.

https://www.yyyazi.com/