Ladies spray perfume and air freshener with spray. Spray is widely used in the cosmetics industry. The difference of spray effect directly determines the user experience.In this paper, we briefly describe the basic knowledge of the packaging material category of the spray pump.For your reference only:https://www.gaooupackage.com/product-category/mist-pump-sprayer/
Spray pump, also called atomizer, it is a major product of form a complete set of cosmetic containers, it is also one of the content distributor, it is a kind of using atmospheric balance principle, through the press material liquid in the bottle, high-speed flow of liquid near the mouth of the gas flow will also drive the nozzle, the nozzle mouth near the speed of the gas, the pressure decreases, the formation of local negative pressure zone.Thus, the surrounding air is mixed into the liquid, forming a gas-liquid mixture, so that the liquid has the effect of atomization.
1.Forming Process
Spray pump on the bayonet (half bayonet aluminum, full bayonet aluminum), screw are plastic, but some on the above covered with a layer of aluminum cover, a layer of anodized aluminum.Spray pump most of the internal accessories, PE, PP, LDPE and other plastic materials, through injection molding.
2.Surface Treatment
The main components of the spray pump can be applied to vacuum electroplating, anodized aluminum, spraying, injection color, etc.
3.Graphic Processing
The mouth surface of the spray pump and the surface of the braces can be used for graphic printing, which can be operated by bronzing, silk screen printing and other processes, but in order to maintain simplicity, there is generally no printing on the nozzle.
4.Primary Attachments
Conventional spray pump is mainly composed by mouth/according to the head, diffusion mouth, central catheter, capping, sealing gasket, piston, piston, spring, pump body, straw and other accessories, which is suitable for opening the pistons, piston with piston connection, achieve when compressed rod upward movement, pump body foreign open, upward movement, the effect of the studio closed.According to the structural design requirements of different pumps, the relevant accessories will be different, but its principle and the ultimate purpose are consistent, that is to effectively take the content.
5.Product structure reference
6.Principle of the water
exhaust process:
Let’s assume that in the initial state, there is no liquid in the base chamber.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 workshop is compressed, the air pressure is increased, and the water stop valve seals the upper end of the drawing pipe.Because the piston and the piston seat are not completely closed, the gas squeezes the gap between the piston and the piston seat, making it separate and escaping.
The water absorption process:
After the exhaust, release the press head, the compressed spring is released, push the piston seat up, the gap between the piston seat and the piston is closed, and push the piston and the compression rod together to move up.In the studio, the volume increases and the pressure decreases, which is similar to vacuum, so that the water stop valve opens the pressure above the liquid level in the container and presses the liquid into the pump body, completing the water absorption process.
The water process:
The principle is the same as the exhaust process.The difference is that at this time, the pump body has been filled with liquid.When the head is pressed, on the one hand, the water stop valve seals the upper end of the drawpipe to prevent the liquid from returning from the drawpipe to the container;On the other hand, as the liquid (incompressible fluid) is squeezed, it will break through the gap between the piston and the piston seat and flow into the compression tube.And come out of the nozzle.
7.Atomization principle
Because the nozzle mouth is very small, if the press is smooth (that is, it has a certain flow rate in the compression tube), when the liquid flows out of the hole, the flow rate of the liquid is very large, that is to say, the air at this time has a very large flow rate relative to the liquid, which is equivalent to the problem of high-speed airflow impacting water droplets.Therefore, the subsequent atomization principle analysis is exactly the same as that of the ball pressure nozzle. The air will impact the large water drop into small water drop and refine the water drop step by step.At the same time, the high-speed flow of liquid will also drive the gas flow near the nozzle mouth, making the velocity of the gas near the nozzle mouth larger, the pressure smaller, forming a local negative pressure area.Thus, the surrounding air is mixed into the liquid, forming a gas-liquid mixture, so that the liquid has the effect of atomization
8.The distributor is divided into two kinds: tie mouth type and screw mouth type
9.The size of the pump head is determined by matching the caliber of the bottle body. The specification of the spray is 12.5mm — 24mm, and the water output is 0.1ml/ time — 0.2ml/ time. It is generally used on the packaging of products such as perfume and gel water, and the length of the pipe with the same caliber can be determined according to the height of the bottle body
10.Sprinkler head measurement method, a spray of liquid dose, peeling measurement method, absolute value measurement method of two.The error is within 0.02g.Also use the pump body size to distinguish measurement
11.Spray pump mold is more, the cost is higher
