How is the sealing performance of plastic lotion pump bottle
The importance of sealing performance
For liquid products such as lotion, essence, hand cream, shampoo, etc., the primary function of packaging is to prevent leakage of contents and external contamination. Good sealing performance can:
Prevent leakage and volatilization of the contents during transportation;
Block air, moisture and microorganisms from invading, and extend the shelf life of the product;
Avoid blurring of labels and deformation of packaging due to liquid leakage, which affects the brand image;
Ensure that every time the user presses to pump liquid, it can be smoothly discharged without residual blockage.
From design to process, the whole process guarantees sealing performance
At Shaoxing Roman Plastic Co., Ltd., sealing performance is not the performance of a single component, but the result of a full-process system guarantee from structural design, raw material selection, mold accuracy to assembly process.
1. High-precision pump head structure design
The pump head of the plastic lotion pump bottle consists of multiple core components: pump core, piston, spring, sealing ring, etc. Shaoxing Roman adopts a multi-layer sealing structure, and introduces double sealing rubber rings in the pump core and piston to enhance air tightness and liquid tightness. In common rotary lock pumps and push lock pumps, the pump head can be fully sealed after being locked, effectively preventing accidental opening and leakage.
2. Material selection and chemical compatibility
Another key to sealing performance lies in the material. The company uses a large number of PP (polypropylene), PE (polyethylene) and optional PET materials. These plastics not only have good mechanical strength and toughness, but also have excellent chemical corrosion resistance. The spring part uses 304 stainless steel or plastic-coated stainless steel to effectively prevent the contents from contacting the metal to produce chemical reactions and avoid damaging the sealing ring structure.
3. Precision molds and injection molding process
The company has more than 50 high-performance injection molding machines, using imported steel and high-precision CNC processing molds to ensure that each batch of components has stable dimensions and consistent fit. The control accuracy error of the joint is kept within ±0.02mm, eliminating the sealing failure caused by excessive tolerance from the root.
4. Automated assembly and full inspection and testing
In a modern factory covering 13,000 square meters, Shaoxing Roman has more than 15 automated assembly and packaging lines, equipped with online vacuum detection and pressure sealing test equipment, and conducts random sampling inspection on each batch of pump heads to ensure that the sealing performance meets the standards before leaving the factory.
Customization and compatibility with international standards
Shaoxing Roman Plastic Co., Ltd. not only provides standard lotion pump bottles, but also accepts OEM/ODM orders. We support pump volume setting (such as 0.2ml~2.0ml), pump head thread interface specifications (24/410, 28/410, etc.) and appearance customization according to customer product characteristics to ensure both sealing and ease of use.
Currently, the company's products are sold well in the United States, Australia, Germany, Canada, New Zealand and the Middle East markets, and are widely used in cosmetics, washing and care, maternal and child, cleaning and antibacterial product packaging, in compliance with international safety standards such as FDA and EU REACH.
What is the applicable product range of plastic lotion pump bottle
Cosmetics industry: the first choice for daily skin care and makeup packaging
In the cosmetics industry, plastic lotion pump bottles are widely used in the packaging of daily skin care products, essences, lotions, creams, facial cleansers and other products. Its notable feature is that it can provide precise dosage control, ensuring that consumers can easily control the amount of product used each time to avoid waste. In addition, the design of the lotion pump bottle makes the product more leak-proof and can effectively prevent the entry of air, thereby helping the product maintain a longer shelf life.
With more than 50 injection molding machines and advanced automated assembly production lines, Shaoxing Roman Plastic Co., Ltd. can customize the material, capacity, pump head design and other characteristics of the pump bottle according to customer needs to ensure that each product meets the customer's brand positioning and user experience. At the same time, we also provide personalized customization services such as surface spraying, UV coating, screen printing, and hot stamping to help customers create unique visual effects on packaging.
Personal care products: ideal choice from shampoo to shower gel
In the field of personal care, the packaging of products such as shampoo, conditioner, shower gel, hand cream, etc. is crucial to the consumer experience. Plastic Lotion Pump Bottle has the characteristics of easy opening and easy pressing, which is particularly suitable for large-volume liquid products. The design of its pump head not only facilitates quick access to products, but also effectively prevents air from entering the bottle, thereby reducing the possibility of product deterioration.
Shaoxing Roman's plastic lotion pump bottle is made of high-quality food-grade materials such as PP, PE, and PET, and is made through precision molds to ensure that the bottle has good corrosion resistance and fall resistance. Whether in a hot and humid environment or in the cold winter, the pump bottle can maintain excellent sealing and pumping performance to meet the long-term storage needs of personal care products.
Household cleaning products: efficient, safe and environmentally friendly packaging solutions
As people's awareness of environmental protection gradually increases, the household cleaning products market has gradually paid attention to the environmental protection and safety of packaging. Plastic Lotion Pump Bottle is widely used in household cleaners, dishwashing liquids, air fresheners and other cleaning products due to its excellent sealing and recyclability. Compared with traditional bottles with open caps, lotion pump bottles can effectively control the flow of liquids, reduce waste, and reduce the contact between the contents of the bottle and the external environment to prevent bacterial contamination.
Shaoxing Roman Plastic Co., Ltd. uses a strict quality inspection system to ensure that the sealing, durability and non-toxicity of each pump bottle meet international standards. We not only provide customers with customized design services, but also make a lot of efforts in the environmental protection of products to ensure that the products comply with global environmental regulations and meet the needs of green packaging.
Pharmaceutical industry: safe and reliable pharmaceutical packaging containers
In the pharmaceutical industry, Plastic Lotion Pump Bottle is widely used in the packaging of various disinfectants, medicinal hand sanitizers, ointments, antibacterial liquids and other products. Compared with traditional bottle cap packaging, the pump bottle design can not only reduce the exposure of drugs, but also avoid bacterial contamination caused by frequent opening of the cap.
Shaoxing Roman Plastic Co., Ltd. provides high-standard production processes and strict quality management systems for customers in the pharmaceutical industry to ensure that the packaging of products meets international regulations such as FDA and EU REACH. The high-precision injection molding and automated assembly processes used by the company ensure the sealing, durability and safety of the pump bottles, which are widely used by major pharmaceutical companies and disinfectant manufacturers.
Other industry applications: Diverse needs from food to pet care
In addition to the cosmetics, personal care, household cleaning and pharmaceutical industries, the scope of application of lotion pump bottles also covers more industries. For example, the packaging of salad dressings, condiments and beverages in the food industry can also be in the form of pump bottles to ensure that the liquid used each time is accurate and avoid waste. In addition, pet care products such as pet bath gel, pet spray, etc. are also often packaged in plastic lotion pump bottles, which can not only ensure the hygiene of the products, but also facilitate consumers to use.