What is the sealing type of bamboo airless pump bottle?
Overview of the structure of bamboo airless pump bottle
The bamboo airless pump bottle is an airless pump bottle made of environmentally friendly bamboo and plastic. It is favored by high-end skin care brands for its natural appearance and advanced functional structure. It is mainly composed of the following parts:
External bamboo shell (or coating layer)
Internal PP or PET plastic bottle body (vacuum chamber)
Piston bottom structure
Sealed pump head (Airless Pump)
Anti-leakage cover (Cap)
The core lies in its "Airless Pump" system, which effectively prevents air from entering the bottle through a precise sealing structure to achieve "vacuum" protection of the product.
Sealing type analysis: multi-layer sealing + vacuum piston system
The sealing of the bamboo airless pump bottle mainly adopts a multi-layer sealing structure combined with a vacuum piston sealing system, as follows:
1. Vacuum sealing system (Airless Sealing System)
The bottle adopts a piston-driven airless sealing structure, that is, the bottom piston gradually rises with use to avoid air residue in the bottle, thereby achieving the purpose of oxygen blocking and pollution prevention. This structure has the following sealing features:
Zero backflow design: After each press of the pump head, no air backflow will occur in the bottle to avoid oxidation contamination.
Negative pressure drive: The bottom piston is driven up by air pressure difference to achieve continuous output of internal lotion or essence without exposure to the air.
Internal air barrier: The close fit between the piston and the bottle wall forms a physical barrier to further improve the sealing.
2. External pump head and bottle mouth seal
The pump head structure adopts high-precision injection molding technology, with internal sealing gasket (usually PE or rubber material), and its sealing design includes:
Screw neck structure (Screw Neck)
Thickened sealing ring (Silicone/PE Ring)
Double-layer pump core closure system: prevent leakage and external contaminants from penetrating
3. Cap sealing (Cap Sealing)
The cap part is usually a rotating cap or a snap cap with a leak-proof design. Its tightness has been repeatedly tested to ensure that there is no leakage during transportation. At the same time, the structure of the cap fits perfectly with the pump head, further strengthening the overall sealing.
Shaoxing Roman Plastic Co., Ltd.'s professional advantages in sealing technology and manufacturing
As a professional cosmetic packaging solution provider, Shaoxing Roman Plastic Co., Ltd. has been committed to the design, production and quality inspection of high-quality plastic packaging products since its establishment in 2016. The company is headquartered in Shangyu, Zhejiang, adjacent to Ningbo and Shanghai ports, with significant geographical advantages.
1. Process and equipment guarantee sealing quality
The company currently has more than 50 injection molding equipment, which can finely manufacture high-precision parts such as pump heads, bottles and pistons. At the same time, 15 assembly and packaging production lines ensure the accuracy of seal installation in each link and reduce human errors.
The precision of injection molding pump heads can be controlled within ±0.01mm
Strictly control the assembly position and pressure of gaskets
Each batch of pump bottles passes the sealing test (pressure resistance test & leakage detection) before leaving the factory
2. Surface treatment technology ensures structural stability
Shaoxing Roman can not only provide high-quality bottle structure, but also has surface treatment technologies such as UV spraying, silk screen printing, thermal transfer, labeling, etc., which can improve the beauty of packaging while ensuring that the sealing structure will not be damaged. For example:
When using spraying and UV, strictly avoid heat deformation of the pump head interface
The printing area avoids the key parts of the bottle mouth seal to ensure that the sealing is not affected
3. Strong customer customization and sealing adaptation capabilities
The company provides flexible OEM/ODM customization services, and can adjust key parameters such as pump head output, piston rebound force, and sealing pad thickness according to the different content characteristics of customers (such as lotions, essences, and oils), so as to achieve more adaptive sealing performance.
For example:
Provide a reinforced version of the sealing pump head for high-viscosity products
Optimize the reflux system for low-viscosity products to prevent dripping
What are the use scenarios of bamboo airless pump bottle?
The Bamboo Airless Pump Bottle is made of natural bamboo and polymer plastics. It adopts an airless pump structure to effectively prevent direct contact between air and contents, extend service life, and prevent the contents from being oxidized and contaminated. Its natural bamboo shell is in line with today's environmental protection and naturalistic consumption trends, and is an ideal packaging choice for high-end skin care and health products.
Typical usage scenario analysis
1. High-end skin care product packaging
This is one of the main application scenarios of Bamboo Airless Pump Bottle. Since skin care products contain a large number of active ingredients, such as phospholipids, peptides, vitamin C, retinol, etc., they are extremely sensitive to air and light. Traditional bottle packaging is prone to active ingredients becoming ineffective due to contact with air.
The "vacuum isolation" mechanism of the airless pump bottle just meets the high requirements of this type of product for sealing, and the environmental protection and high-end visual sense of the bamboo shell also enhance the brand tone. Commonly used for:
Serum
Facial Lotion
Anti-aging Cream
Firming and lifting products
Shaoxing Roman Plastic Co., Ltd. has nine years of packaging development experience and provides OEM/ODM services for dozens of European and American brands among skin care customers. It can flexibly customize key parameters such as liquid output, pump pressure, and sealing degree according to different formula requirements.
2. Organic/natural ingredient cosmetics
Environmental protection and sustainable packaging have become key trends in the global beauty market, especially in the European and Australian markets, where consumers prefer natural cosmetics without preservatives, and have set higher environmental standards for packaging.
Bamboo Airless Pump Bottle uses natural bamboo as the outer material to reduce the use of plastics, and it can be recycled and decomposed. In addition, the structure without air residue in the bottle provides strong support for the formula without adding preservatives, making it the preferred packaging solution for natural beauty brands.
Shaoxing Roman is located in Shangyu, Zhejiang, with a 13,000 square meter factory and more than 50 injection molding machines, which can efficiently process the composite structure of polymers and natural materials to ensure the stability of product quality and the achievement of environmental protection standards.
3. Baby and sensitive skin skin care products
Skin care products used by infants or people with sensitive skin must ensure that the ingredients are pure and pollution-free, which places extremely high demands on the sealing and hygiene standards of the packaging.
Since the airless pump bottle is a fully enclosed system, no external air is required to enter, which can effectively prevent the invasion of pollutants and bacteria. It is very suitable for sensitive skin care products, such as:
Baby lotion
Eczema repair cream
Sensitive skin soothing gel
Shaoxing Roman strictly controls the accuracy of the bottle mouth in the product structure design. All products pass the leakage test and pressure resistance test to provide long-term and stable supply for such high-standard customers.
4. Men's care products and travel packages
Men's skin care and travel scenarios require portable, leak-proof and durable packaging. Bamboo Airless Pump Bottle is compact and lightweight, not easy to break, and the pump head design prevents accidental leakage. It is very suitable for:
Men's after-shave care
Facial refreshing gel
Travel skin care three-piece set
Shaoxing Roman has more than 15 assembly and packaging production lines, which can meet the production needs of small portable pump bottles of different capacities (15ml, 30ml, 50ml), and can be customized with UV spraying, silk screen printing and labels according to brand requirements.
5. High-end fragrance and essential oil products
Fragrance and essential oil products require extremely high sealing to prevent the volatilization of fragrance and oxidation of oil. Traditional glass droppers often have shortcomings in terms of sealing and convenience, and the airless output structure of the Bamboo Airless Pump Bottle perfectly solves this problem.
In addition, the bamboo bottle is natural and fresh, which complements the natural temperament of the fragrance. Commonly used for:
Fragrance lotion
Compound essential oil
Nourishing care oil
Shaoxing Roman provides a complete one-stop customization service, including the selection of liner materials (PET, PP, etc.), pump strength adjustment, and diversified appearance design, etc., to meet the unique and personalized packaging needs of fragrance brands.
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