#two color screw cap test tube mold

[yueyimold]

two color test tube mold

China 2k mold maker, offer multi shot screw cap test tube mold, 2 component testing tube mold, bi material lab tubes mold, double colour centrifuge tube mold

[longzhuang-blog]

Basic knowledge of lotion pump

Understanding of lotion pump

It is a kind of liquid dispenser that uses the principle of atmospheric balance to pump out the liquid inside the bottle by pressing the pressure, and fill the outside atmosphere into the bottle. The main performance indicators of the lotion pump: the number of air pressure, pumping volume, under pressure, the plunger to open the torque, rebound speed, water intake indicators.

Dispenser is divided into two kinds of tie-mouth type and screw-mouth type, in terms of function is divided into spray, foundation cream, lotion pump, aerosol valve, vacuum bottle.

The size of the pump head is determined by the caliber of the matching bottle, the size of the spray 12.5mm-24mm, the water output is 0.1ml/time - 0.2ml/time, generally used for perfume, gel and other products on the packaging with the same caliber, the length of the tube can be based on the height of the bottle.

The lotion pump head has a wide range of specifications from 16ml to 38ml, with water output of 0.28ml/3.1ml/time, which is generally used for creams and washing products. china-packaging-factory.com

Special distributors such as foam pump head and hand-button nozzle, foam pump head is a non-irrigation type hand-pressure pump head, no need to irrigate to produce foam, just press lightly to produce a quantitative high quality foam. It is usually supplied with a special bottle. Hand-button spray nozzle is usually used for cleaning agents and other products.Find good lotion dispenser pump manufacturer does help a lot.

Dispenser composition is more complex, generally includes: dust cover, press stud, press rod, gasket, piston, spring, valve, cap, pump body, straw, valve ball (steel ball, glass ball). Lids, dust caps can be made colored, can be electroplated, can be set of galvanized aluminum ring.

Airless bottle is usually cylindrical, specifications 15ml-50ml, individual 100ml, the overall capacity is smaller, by the principle of atmospheric pressure, to avoid the use of cosmetics in the process of causing pollution, vacuum bottles have aluminum electrolysis, plastic plating and colored plastic, the price is more expensive than other general containers, ordinary order quantity is not high. Distributor customers rarely open their own mold, to the mold to pay more, the cost is higher.

Second, the working principle of the pump head.

Press the handle down manually, the volume in the spring chamber decreases, the pressure rises, the liquid enters the nozzle chamber through the hole of the spool, and then squirts out the liquid through the nozzle, then release the handle, the volume in the spring chamber increases, forming a negative pressure, the ball opens under the effect of negative pressure, the liquid in the bottle enters the spring chamber, a certain amount of liquid has been stored in the valve body, when the handle is pressed again, the liquid stored in the valve body will be rushed upwards. (a) Sprayed out through nozzles.

From the above working principle, a good pump head in the following key areas of special attention: 1, the spring under the glass or steel ball, the seal here is very important, related to the liquid in the spring chamber to the strength of the upward pressure, if the leak here when you press the handle when the liquid will have part of the leakage to the bottle inside and affect the liquid to the effect of the spray; 2, the valve body is the upper seal, if the leak here, when the pressure handle, if the pressure to the bottle, the liquid will be the liquid to the effect of the spray; 2, the valve body is the upper seal, if the leak, when the handle to the bottle, the liquid will be the liquid to the bottle to the effect of the upward pressure. Let go of the liquid to pump up the force of the bottom to reduce, and the amount of liquid stored in the valve body is very small, will also affect the spray effect; 3, the pressure handle and spool with the valve, here with if there is a leakage of more loose words, when the liquid up to the nozzle will have some resistance, the liquid will flow back, if the leakage here will also affect the spray effect; 4, the design of the nozzle, the design of the nozzle is directly related to the design of the spray Effectiveness, see next page for detailed explanation of nozzle design issues.

So the general function of the pump head is also tested in these four locations, and other appearance and fit issues are routinely tested.