What is an airless pump bottle?

In the market, you must have seen many airless pump bottles on the shelves, and you may be wondering what an airless pump bottle is. I believe you can find the answer below.

How do airless pump bottles work?

Airless pump bottles work by converting pressure changes into gas flow, achieving the effect of dispensing liquid upon pressing. Specifically, the pump head contains a piston and a vacuum valve. When the user presses the pump head, the piston moves downward, releasing a certain amount of gas from the pump head and creating a low-pressure zone below the pump head. At this point, a pressure difference is established between the high and low pressures, causing the liquid to naturally flow towards the low-pressure area. Under the action of hydraulic pressure, the liquid smoothly exits the pump head. When the user releases the pump head, the vacuum valve automatically closes, eliminating the low-pressure zone inside the pump head. Utilizing hydraulic pressure prevents the liquid from flowing back, fundamentally preventing product contamination and ensuring the product’s activity and safety.

What sets airless pump bottles apart?

Compared to plastic lotion pump bottles, the design of airless pump bottles lacks a general tube, meaning there is no pump tube. This design not only reduces waste but also minimizes cross-contamination, effectively guaranteeing product quality and freshness. When using an airless pump bottle, there’s no need to invert the bottle because the liquid won’t dispense properly if air enters one side. After expelling the air from the bottle, each press will dispense the liquid normally. The specific operation method involves grasping the bottom of the airless pump bottle, flicking it towards the nozzle direction, then pressing the pump head to expel the air, allowing the liquid to rise automatically.

Why do cosmetic brands favor airless pump bottles?

With airless pump bottles, the contents are completely isolated from the outside environment, preventing product oxidation, bacterial growth, and material degradation due to air exposure. Many skincare products contain amino acids, proteins, and easily oxidizable components such as vitamin C, vitamin E, and squalane, which are sensitive to dust, bacteria, and contamination. For top cosmetic brands, a good packaging bottle enhances the product’s appeal.

FAQs

1, Can airless pump bottles be refilled?

Airless pump bottles are typically designed with snap-on or twist-open openings. If it’s a snap-on type, it cannot be reopened for refilling. However, if it’s a twist-open airless pump bottle, you can manually rotate the bottle to open and refill its contents.

2,How many times can I refill the airless pump bottle?

While airless pump bottles can be reused, they also require regular cleaning or disinfection. Prolonged disassembly and reassembly may lead to loose pistons or pump heads, which can easily introduce air and breed bacteria.

3,Can I bring the airless pump bottle on the plane?

Lotions can be carried on the plane, but the lotion or the container containing the lotion must not exceed 100 milliliters, with clear product labeling on the container. If your lotion is 120 milliliters, it must be transferred to a 100-milliliter bottle. Additionally, even if your lotion bottle is 120 milliliters but you have already used half, making it effectively only 60 milliliters, is it permissible? Note that it is not. The regulation of a single bottle not exceeding 100 milliliters is not just for lotions but mainly for bottles.

4,Can I use the airless pump bottle for thick cream?

Airless pump bottles are not suitable for filling with oils. They are suitable for flowable liquids without particles or sandy textures, with low viscosity and not too viscous, making them unsuitable for thick creams.

5,How do I use the airless pump bottle when I receive it?

When you get it, please press it several times. The air may also enter when cosmetics are filled. Press out all the air before squeezing out the product. When pressing the airless pump bottle, the bottom vacuum plug uses pressure to push upward. Press multiple times to expel the air, then you can press smoothly to dispense the liquid.