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Basic quality requirements of pump head

Basic quality requirements of the pump head: The pump head is a main container accessory in cosmetic packaging materials. Its main function is to absorb the contents for application by cooperating with containers such as plastic bottles, glass bottles, and hoses. Therefore, the quality of the pump head It directly determines the consumer's experience of the product.
Basic requirements for the appearance of the pump head: Cloak/burr: Cloak and burr do not affect the use function, and the appearance and feel of the dust cover are well matched, not easy to fall off, no scratches, and no mottled spots. Noise: No obvious chromatic aberration and noise points or noise lines.
Dirt/foreign matter: foreign matter cannot be removed, product contact area: dirt and foreign matter can be wiped off, non-product contact area: dirt and foreign matter can be wiped off, smooth and complete, uniform in thickness, no obvious skew, defect, or missing parts.
The basic structure of the spray pump head product: gram weight: no more than 3% deviation of gram weight, matching: flexible with rotation, moderate tightness; no slippery teeth. The gap between the nozzle and the bottle neck is less than or equal to 1.5mm. Straw: The length is suitable, and it is not easy to loosen. Number of pumping times: ≤5 times for liquid and lotion; ≤10 times for cream. Spray effect: The nozzle should be in the form of a mist, and the range of the nozzle and the pressure head should be more than 1m. Weight: Generally according to the contract Weight Size: The contract size Thickness: The contract thickness, printing/hot stamping adhesion: immersion in water for 0.5h, ozone fumigation for 0.5h, and UV irradiation for 1h without falling off during printing. 3M-810/3M-600 peel test, the peeling area is less than 10%. Alcohol wiping test, the inner material is wiped for 1H, there is no obvious fading. ②Alcohol wipe test, the inner material is wiped for 1H, and there is no obvious fading. Fit: Fit tightly and smoothly, without loosening or slipping teeth.