What is a Airless Pump Bottle?
The Working Process of Airless Bottle
Airless bottles extract liquids through the pressure difference between the inside and outside of the bottle: in the initial state, the inside of the bottle is a vacuum or low-pressure environment. When the pump head is pressed, the internal space expands to form a lower pressure, and the liquid in the bottle enters the pump chamber through the straw under the action of atmospheric pressure; after the pump head is released, the spring returns to compress the pump chamber, and the liquid is discharged from the nozzle under high pressure. At the same time, the vacuum in the bottle is maintained by the sealing structure to ensure that the remaining liquid is continuously squeezed out, avoiding contact with the air throughout the process, and keeping the contents hygienic and stable.(REF: Airless Pump Working)
Types of Airless Pump Bottles
- PET Plastic Airless Bottle:It is highly transparent and stable, and the contents of the bottle are readily visible through it. It is commonly used in the packaging of items with high transparency requirements, such as essences and toners.
- PP Plastic Airless Bottle:It is easy to recycle, has high toughness, corrosion and heat resistance, can sustain temperature changes, and is difficult to distort. It is commonly used to package products that must remain stable at varying environmental temperatures.
- Acrylic Airless Bottle:It has a high level of transparency and glossiness and appears to be of good quality. It is commonly used in high-end cosmetics packaging, such as some face cream and essence vacuum bottles, where it can improve the product’s visual quality and grade.
- PCTG and PETG Pastic Airless Bottles:The characteristics of these two materials are extremely comparable. They offer great transparency, hardness, and chemical resistance, as well as strong processing performance and the ability to be formed into complex-shaped containers. They are appropriate for packaging products with distinct look design needs, such as specially shaped emulsions and gel products.
- AS Plastic Airless Bottle:It has good transparency and hardness, and it is frequently used to make bottles that demand high transparency and strength, such as miniature perfume vacuum bottles, which enable greater perfume display and protection.
Which Cosmetic Products are Suitable for Airless Pump Bottles?
- Essence: Essence usually contains high concentrations of active ingredients, such as vitamin C, hyaluronic acid, peptides, etc. These ingredients will lose their effectiveness when exposed to air. Vacuum bottles can effectively block air, ensure the stability of the essence ingredients, extend the shelf life of the product, and accurately control the amount used each time.
- Lotion: Lotion is relatively light and thin, and has moisturizing and hydrating effects. Using a vacuum bottle can not only prevent the lotion from being contaminated by the outside world during use, but also keep the lotion in a good condition in the bottle, making it easier to squeeze out and avoid waste.
- Facial Cream: Especially some high-end facial creams containing precious ingredients, such as plant extracts, collagen, etc., vacuum bottles can provide a good sealing environment to prevent the facial cream from deteriorating. At the same time, the press-type or squeeze-type vacuum bottle design makes it easy to take thicker facial creams.
- Liquid Foundation: Liquid foundation needs to maintain a delicate texture and uniform color. The vacuum bottle can prevent the liquid foundation from sedimentation and stratification during storage, ensuring that a uniform amount of liquid foundation can be taken out each time it is used, and can effectively prevent the growth of microorganisms.
Advantages and Disadvantages of Airless Bottles
Advantage
- Good Sealing: The special design and structure of the vacuum bottle can effectively block the air and provide an independent and stable storage environment for the products in the bottle, preventing the products from oxidation and deterioration due to contact with air. For some products that are easily oxidized, their shelf life is extended.
- Precisely Control Dosage: Most vacuum bottles adopt a press-type or squeeze-type design. Users can easily control the amount of product taken each time according to their needs. This is not only convenient to use, but also effectively reduces product waste.
- Easy to Use: The vacuum bottle is easy to operate and use, and the pressing or squeezing action is easy and convenient, even for users with weak hand strength. For some viscous products, such as creams, sauces, etc., the vacuum bottle can also squeeze out the product smoothly, which is more convenient to use than traditional open bottles or cans.
- Environmental Protection and Energy Saving: Vacuum bottles can basically use up the product in the bottle, reduce the residue of the product in the bottle, improve the utilization rate of the product, and to a certain extent reduce the generation of packaging waste, which is in line with the concept of environmental protection.
- Maintain Stable Product Performance: For some environmentally sensitive products, such as cosmetics and biological products containing active ingredients, vacuum bottles can effectively maintain the stability of the products, prevent the ingredients in the products from being degraded or inactivated due to external factors, and ensure that the products always maintain good performance and effects during use.
Disadvantages
- Higher Cost: The manufacturing process of vacuum bottles is complex, requiring special materials and technology to achieve vacuum sealing, and the production cost is higher than that of ordinary packaging containers. This will increase the overall cost of the product and raise the market price, which is a factor that needs to be considered for price-sensitive consumers and companies that strictly control costs.
- Limited Capacity: Due to the limitations of structure and design, the capacity of vacuum bottles is generally small, with common capacities ranging from tens of milliliters to hundreds of milliliters. For products that require large-scale storage and frequent use, vacuum bottles need to be replaced frequently, which is extremely inconvenient. Therefore, in scenarios with large-capacity packaging requirements, the application of vacuum bottles will be subject to certain restrictions.
- Difficulty in Recycling: Vacuum bottles are generally made of a variety of materials such as plastic bottles, metal pump heads, rubber seals, etc., and the recycling methods of different materials are different, which makes them more difficult to recycle. In some areas, due to the constraints of recycling facilities and technical conditions, vacuum bottles are difficult to recycle effectively, which puts a certain pressure on the environment.
How to Choose a Good Airless Pump Bottle?
Vacuum Performance
- High Vacuum Degree: High-quality vacuum bottles rely on advanced technology and materials to maintain a high vacuum degree for a long time, reduce the air in the bottle, inhibit product oxidation, reduce air pressure, and extend the shelf life.
- Good Vacuum Retention: A good vacuum bottle relies on precise structure and durable material to maintain vacuum even when opened frequently, and the sealing effect is stable.
Sealing Effect
- No Leakage: The key to a vacuum bottle is sealing. All joints must be seamless. You can test this by filling it with water and shaking it upside down.
- Strong Material Ddaptability: high-quality sealing materials are compatible with various products, resistant to corrosion, and can also seal stably even when in contact with oily cosmetics
Discharging Function
- Smooth Discharge: When pressing or squeezing, the product should be squeezed out evenly and stably, and thick products can also be discharged smoothly. This depends on the smooth flow of the bottle design and the pump head.
- Accurate Dosage: A good vacuum bottle has a fixed output. For example, a vacuum bottle for skin care products has a fixed output. The amount of material pressed at one time is suitable for single use, which is convenient for controlling the amount and preventing waste.
- Anti-drip: After stopping operation, the pump head does not drip and remains clean, thanks to the valve design and the timely and tight closing.
- High Safety: High-quality vacuum bottles are made of food-grade and cosmetic-grade safe materials, such as PET, PP, etc. They are non-toxic, odorless, and non-irritating. They meet the standards and do not harm health and product quality.
- Strong Stability: high-quality vacuum bottle materials are corrosion-resistant, heat-resistant, and anti-aging, adaptable to a variety of environments, and will not soften or deform at high temperatures, with stable performance
- Appropriate Transparency: Check the remainder and select highly transparent materials. Light-sensitive products require the material to have light-shielding properties or be designed to be light-shielding to prevent photolysis of components.
Appearance and Design
- Exquisite Appearance: The bottle is smooth and flawless, the shape is beautiful and generous, the high-quality appearance highlights the craftsmanship and improves the product grade.
- Reasonable Design: ergonomic design, comfortable and labor-saving pump head, easy to hold the bottle. Portable and compact, non-slip for special environments.
Final Words
The airless pump bottle isolates the air through excellent sealing, effectively preventing the product from oxidation and deterioration, and greatly extending the shelf life. The discharge design is precise, which is convenient for controlling the dosage and reducing waste. The material is safe and stable, and the transparent or light-shielding design meets different needs. When selecting, it is necessary to combine the product characteristics, focusing on the vacuum degree, sealing and other properties. It is widely used in cosmetics, medicines, food and other fields, which greatly facilitates the storage and use of products.
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