Valves Are the Crucial Fitment For Bag In Box
The bag-in-box valve closure is an essential component in bag-in-box packaging systems. The valve allows the contents of the bag to be dispensed while preventing air from entering and spoiling the contents.
They provide an airtight seal to maintain the freshness and quality of the packaged product, which is typically a liquid or semi-liquid substance.
The valve opens when pressure is applied to dispense the contents, and then automatically closes to prevent air ingress when the pressure is released.
Common valve closure types used in bag-in-box include pinch, twist, flip-top, and other specialized designs optimized for different product viscosities and dispensing requirements.
Features Of Bag In Box Closures
The airtight bag and valve closure help preserve the quality and freshness of liquid products for an extended shelf life compared to other packaging formats. The bag-in-box design allows for controlled, measured dispensing of the contents, making it well-suited for products that need to be portioned out over time.

More Than 20 Types
The choice of the right valve closure is critical to ensuring the bag-in-box packaging system functions reliably and delivers the desired performance.

Bag In Box (BIB) Bags
Bag-in-box bags have a multilayer construction to provide the necessary strength, flexibility, and barrier protection.
They often have an innermost layer in contact with the product, outer protective layers, and adhesive/sealant layers.
The bags are typically rectangular or cubic in shape to fit standard box sizes.

Custom Bag In Box System
The flexible bag material allows for custom printing of logos, branding, instructions, and other graphics.
Common custom shapes include triangular, hexagonal, or even contoured bags to fit unique box designs.
The bag’s material layers can be customized with different plastics, foils, and barrier coatings.
Why Choose Ouma As Your Packaging Partner

Real Manufacturer
Ouma is a leading flexible packaging manufacturer that has been serving the industry since 2000, with 100% self-owned plants.
With years of experience and expertise, Ouma is committed to providing high-quality and innovative packaging solutions to meet the unique needs of our customers.
Ouma offers a wide range of flexible packaging products, including Mylar bags, stand-up pouches, flat bottom pouches, retort pouches, flat pouches, and more.
These products are available in a variety of sizes, shapes, and colors, and can be customized to fit the specific needs of each customer.
At Ouma, quality and customer satisfaction are top priorities. Ouma uses only the highest quality materials and employs strict quality control measures to ensure that our products meet the highest standards of excellence.
Related Stand Up Pouches For Your Reference
If you’re interested in stand up pouches, be sure to check out the wide range of products offered by Ouma. In addition to stand-up pouches, Ouma also produces a variety of packaging solutions to meet your needs. Ouma offers flat pouches, gusseted bags, side-seal pouches, and more. To browse other products, click the following links and explore other product categories.