Ladies spray perfume, air freshener with the spray, spray in the cosmetic industry is very widely used, the spray effect of the different, directly determine the user's experience, spray pumps, the main tool, play a vital role. In this article, we briefly describe the spray pump this package category of basic knowledge, for your reference only:
Spray pump, also known as sprayer, it is the main supporting products of cosmetic containers, but also one of the contents of the distributor, it is a use of atmospheric equilibrium principle, through the press will be sprayed out of the bottle of material, high-speed flow of the liquid will also drive the nozzle mouth of the gas flow near the mouth of the nozzle, making the nozzle mouth of the gas near the speed of the nozzle becomes larger, the pressure becomes smaller, the formation of a localised negative pressure zone. Thus, the surrounding air is mixed into the liquid, forming a gas-liquid mixture, so that the liquid produces an atomisation effect.
Manufacturing process
1. Moulding process
Spray pump on the bayonet (half bayonet aluminium, full bayonet aluminium), screw mouth are plastic, just some on the top of a layer of aluminium cover, a layer of electrochemical aluminium. Most of the internal parts of the spray pump are made of PE, PP, LDPE and other plastic materials, through injection moulding.
2. Surface treatment
The main components of the spray pump can be applied to vacuum plating, electrified aluminium, spraying, injection moulding colour and so on.
3. Picture treatment
Spray pumps can be printed on the surface of the nozzle and the surface of the tooth sleeve, you can use hot stamping, silkscreen and other processes to operate, but in order to maintain simplicity, generally in the nozzle will not be printed.
Product structure
1. Main accessories
Conventional spray pumps are mainly composed of press nozzle/push head, diffusion nozzle, centre conduit, locking cap, sealing pad, piston core, piston, spring, pump body, suction pipe and other accessories, of which the piston is an open piston, by connecting with the piston seat, to achieve the effect that when the compression rod moves upwards, the pump body is open to the outside, and when it moves upwards, the studio is closed. According to the structural design requirements of different pumps, the relevant accessories will be different, but the principle and the ultimate purpose are the same, that is, to effectively take the contents.
2. Water discharge principle
Exhaust process:
Assume that there is no liquid in the base studio in the starting state. Press the press head, the compression rod drives the piston, the piston pushes the piston seat down, the spring is compressed, the volume in the studio is compressed, the air pressure increases, the stop valve seals the upper port of the water drawer. As the piston and piston seat are not completely closed, the gas squeezes through the gap between the piston and the piston seat, separating them and allowing the gas to escape.
Suction process:
After exhausting the gas, release the press head, the compressed spring is released, pushing the piston seat upward, the gap between the piston seat and the piston is closed, and pushing the piston as well as the compression rod to move upward together. The volume in the studio increases, the air pressure decreases, approximate vacuum, making the stop valve open the container above the liquid surface of the air pressure will be pressed into the pump body, complete the suction process.
Water discharge process:
Principle with the exhaust process. The difference is that at this time, the pump body has been filled with liquid. When the press head is pressed, on the one hand, the stop valve seals the upper end of the draw-off tube, preventing the liquid from the draw-off tube back to the container; on the other hand, due to the liquid (incompressible fluid) by the extrusion, the liquid will be rushed away from the gap between the piston and the piston seat, flowing into the compression tube. And out of the nozzle.
3, atomisation principle
As the nozzle mouth is very small, if pressed smoothly (i.e., in the compression tube with a certain flow rate), then when the liquid from the small hole out, the liquid flow rate is very large, that is to say, at this time, the air relative to the liquid there is a very large flow rate, equivalent to the high-speed air impact on the droplets of the problem. Therefore, after the atomisation principle analysis and ball pressure nozzle is exactly the same, the air will be a large droplet impact into a small droplet, step by step to refine the droplet. At the same time, the high-speed flow of the liquid will also drive the gas flow near the nozzle mouth, so that the velocity of the gas near the nozzle mouth becomes larger, the pressure becomes smaller, forming a local negative pressure zone. Thus, the surrounding air is mixed into the liquid, forming a gas-liquid mixture, so that the liquid produces atomisation effect.
Cosmetic applications
Spray pump products are more widely used in cosmetic products, such as perfume, gel water, air freshener and other aqueous and serum products.
Post time: Mar-14-2025