How The Bag-On-Valve Packaging Machine Work

In today's packaging field, the Bag-On-Valve (B.O.V.) technology stands out with its unique design and outstanding performance, providing innovative packaging solutions for numerous products.

B.O.V., as a cutting-edge barrier packaging technology, is custom-tailored for liquid and viscous products. Its essence lies in erecting a solid barrier between the product and the propellant, completely isolating them. The product is hermetically sealed within a specially crafted packaging bag, while the propellant fills the space between the bag and the outer packaging container. When commonly used aluminum cans are employed for packaging, a one-inch opening at the top of the can is utilized for precisely crimping the valve, which is firmly welded to a foil packaging bag made of multi-layer composite films. After crimping, compressed air or nitrogen is injected into the gap between the bag and the can. This "under the cup gassing" process guarantees that the product remains free from propellant interference throughout, eradicating any chance of impurity infiltration from the source and vigorously safeguarding the purity and quality stability of the product.

The four-layer composite bag constructs an almost flawless protective shield, effectively fending off oxygen attacks and building a "preservation fortress" for oxidation-sensitive products, significantly prolonging the product's shelf life and freshness period.

The absolute separation of the product from the propellant (air or nitrogen), combined with the hermetic sealing of the product within the bag, forms a tight protection network that comprehensively safeguards the integrity of the product, averting risks such as leakage and deterioration. Simultaneously, the utilization of non-flammable propellants completely eliminates explosion hazards and inhalation risks, substantially elevating the safety level.

Possessing the characteristic of being capable of high-temperature sterilization treatment, it ensures that the packaging system remains in a sterile and clean state at all times, meeting the requirements of high hygiene standards. The nearly 99.5% high product discharge rate minimizes residual waste. It enables 360° all-round spraying with precisely controllable spray patterns, eliminating the need for cumbersome pressing operations. A simple press triggers a smooth and accurate spray. The efficient filling process is adaptable to various production lines, flexibly compatible with liquid and some viscous products, offering simple operation and excellent efficiency.

As an implementer of environmental protection concepts, the B.O.V. packaging adheres to green principles throughout the entire process. It is 100% recyclable, minimizing environmental impacts from raw material selection to post-use disposal. It serves as an ideal green alternative to traditional aerosol systems, spearheading the environmental protection trend in the packaging industry.

From the lightweight protection of sunscreen sprays (SPF series) and the nourishing moisture of skincare lotions and creams to the refreshing cleansing of facial washes and the even tanning effect of self-tanning sprays, the B.O.V. technology injects innovative vitality into cosmetics and personal care products, optimizing the user experience and enhancing product texture and competitiveness.

In the fields of medicine and over-the-counter products, wound cleaning solutions, nasal sprays, ear and eye rinses, and first aid sprays utilize B.O.V. to achieve precise dose spray administration, ensuring stable drug efficacy, safety, and hygiene, providing patients with efficient and reliable treatment support.

In the realm of automotive maintenance and cleaning, automotive paint protection sprays, leveraging B.O.V. technology, evenly coat the vehicle body, forming a long-lasting protective film that resists the erosion of ultraviolet rays, acid rain, etc., maintaining the paint's luster over an extended period. Interior cleaning sprays can penetrate deep into the gaps of fabric fibers and plastic surfaces, effectively removing stains and odors without damaging the materials. Tire care sprays, through precise atomization, adhere uniformly to the sidewalls of tires, nourishing the rubber and delaying aging while imparting a bright luster. Brake system cleaning sprays can reach the interior of complex components, powerfully removing oil and impurities and ensuring stable braking performance. The B.O.V. technology offers efficient, safe, and environmentally friendly packaging solutions for various spray products in the automotive industry, facilitating the improvement of quality and performance of automotive care and maintenance products.