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Suzhou Jingle Packaging Technology Co., Ltd.

Wholesale Dairy Bag-In-Box(BIB) Packaging

Dairy bag in box is an efficient and environmentally friendly liquid packaging solution designed for the dairy industry. It is widely used in the storage and transportation of dairy products such as milk, yogurt, cream, etc. Its design ensures that dairy products remain fresh and safe throughout the shelf life, avoiding deterioration caused by the intrusion of oxygen, light or microorganisms. The bag in box has a tight structure and is made of food-grade materials, which are tear-resistant and pressure-resistant.The bag in box is small in size and light in weight, we can tailor it to the specific needs of customers to meet the needs of different capacities, shapes and uses. 
Suzhou Jingle Packaging Technology Co. Ltd. has advanced production equipment and can provide dairy bag in box products of different specifications and materials according to customer's requirements, and our all products can meet food-grade safety requirements. Our team has more than 15 years of rich experience in the field of liquid flexible packaging. We are able to provide customers with a complete solution from design, production to after-sales, ensuring that the product quality meets international standards.

Supporting Technologies

Dairy BIB Packaging

Jingle BIB packaging is currently widely used in the dairy market including fresh milk, condensed milk, cream, condensed milk, milk pulp, thick milk, etc.

Suzhou Jingle Packaging Technology Co., Ltd.

Dairy BIB Packaging

Technical Specifications & Operational Guidelines for Liquid Dairy Applications

A1
Extended Post-Opening Shelf Life The air-tight tap mechanism prevents oxygen ingress and microbial contamination, maintaining product integrity for 3–6 weeks after opening.
A2
Reduced Product Residue The collapsible bag design allows near-complete evacuation, with residual volumes typically below 1% of total capacity.
A3
Lower Logistics Costs Empty BIB components are shipped and stored flat, reducing storage space requirements by up to 60% compared to rigid bottles or jugs.
A4
Material Efficiency The bag-to-box ratio results in less packaging mass per liter of product, translating to lower material consumption and transport weight.
Parameter
Specification
Bag Film Structure
Co-extruded polyethylene (PE) with EVOH oxygen barrier layer
Box Material
Corrugated cardboard (single or double wall)
Available Capacities
3L, 5L, 10L, 12L, 15L, 20L
Tap Types
Press tap, twist tap, or push-pull tap (food-grade polymers)
Filling Temperature Range
4°C – 40°C (aseptic or non-aseptic filling)
Storage Temperature
2°C – 8°C for fresh dairy; -25°C for frozen dairy applications
01
Foodservice Operations High-volume milk dispensing for coffee shops, hotel breakfast buffets, and cafeteria settings.
02
Dairy Processing Plants Intermediate bulk storage and transport of liquid yogurt, cream, or milk concentrates.
03
Commercial Kitchens Portion-controlled dispensing of dairy-based sauces, custard mixes, or batter preparations.
04
Institutional Catering Schools, hospitals, and care facilities requiring consistent milk access without single-use cartons.

Filling Compatibility

BIB bags are compatible with standard bag filling machines using spout insertion or heat-seal interfaces. Verify bag fitment type (e.g., 25mm or 32mm spout) with your existing filler.

Storage and Handling

Store filled BIB units in a dry environment, stacked no more than 5 units high for 10L+ sizes. Do not freeze dairy BIB unless the bag film is rated for sub-zero temperatures.

Dispensing Setup

Position the tap at least 10 cm above the dispensing area. For gravity dispensing, ensure the box is elevated. For pump systems, confirm outlet pressure rating (typically less than or equal to 0.5 bar).

ISSUE
Tap leakage after first use Resolution: Confirm the tap diaphragm is fully closed by turning clockwise until resistance increases. For press taps, ensure the lever returns to the horizontal locked position.
ISSUE
Bag collapses prematurely or unevenly Resolution: This indicates the box ventilation holes are blocked. Check that the box air holes are not sealed by tape or stacking against a solid surface.
ISSUE
Off-odor in dispensed dairy Resolution: Verify storage temperature remains below 8°C. For opened bags, discard if product has exceeded 4 weeks post-opening. Flush the tap with warm water and mild alkali cleaner between bag changes.
Suzhou Jingle Packaging Technology Co. Ltd.

The company is located at No. 758, Longqiao Road, Wujiang Economic Development Zone, Suzhou, about 5 minutes' drive from the G15W Wujiang South Expressway Exit. The company is committed to providing high-quality products and all-round solutions to domestic and foreign customers, and actively exploring new markets with customers.
We are China Dairy Bag-In-Box(BIB) Packaging Suppliers and Wholesale Dairy Bag-In-Box(BIB) Packaging Company. The company has an advanced bag-in-box production line designed independently, which can produce products of various specifications according to customer requirements to meet customer supply needs.
It mainly develops and produces liquid flexible packaging products suitable for storing food, beverages, and non-food fields, as well as related supporting filling equipment, sells the products produced by the company, and provides corresponding after-sales services.

Suzhou Jingle Packaging Technology Co., Ltd.
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  • The Islamic Food And Nutrition Council Of America
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BIB packaging For Dairy Industry knowledge

In the dairy industry, oxygen is the primary catalyst for spoilage, leading to fat oxidation, vitamin degradation, and off-flavors. Maintaining a rigorous barrier against atmospheric gases is essential for preserving the nutritional profile of milk and cream. Suzhou Jingle Packaging Technology Co., Ltd., based in the Wujiang Economic Development Zone of Suzhou, leverages over 15 years of technical expertise to manufacture specialized Dairy Bag-In-Box (BIB) Packaging. By utilizing advanced production lines and high-performance barrier films, Suzhou Jingle Packaging Technology Co., Ltd. provides comprehensive solutions that satisfy the strict shelf-life requirements of the global dairy market.

The Science of Barrier Selection: EVOH vs. Nylon

Dairy products require specific functional layers within the flexible bag to manage both mechanical stress and gas permeation:

  • EVOH (Ethylene Vinyl Alcohol): Recognized as the industry standard for high-oxygen barrier performance. EVOH layers provide an exceptional shield against oxygen, even at very low thicknesses. It is typically sandwiched between polyethylene (PE) layers to protect it from moisture, which can affect its barrier properties.
  • Nylon (Polyamide/PA): While Nylon provides a moderate gas barrier, its primary strength lies in mechanical durability. It offers excellent puncture resistance and flex-crack resistance, which is vital during the transportation of heavy bulk dairy liquids.
  • Synergistic Co-extrusion: Suzhou Jingle Packaging Technology Co., Ltd. often combines these materials in multi-layer structures to achieve a balance of gas protection and physical toughness.

Technical Parameter Comparison: Barrier Performance Metrics

The technical team at Suzhou Jingle Packaging Technology Co., Ltd. evaluates film performance based on Oxygen Transmission Rates (OTR). The following table compares standard dairy-grade materials:

Material Structure OTR (cc/m²/24h) Mechanical Strength Primary Benefit
Standard PE (Polyethylene) > 2000 Moderate Moisture Barrier / Sealing
Nylon / PE 30 - 50 Very High Puncture Resistance
EVOH / PE (High Barrier) < 2.0 High Maximum Shelf Life
Metalized PET / PE < 1.0 High Light & Oxygen Protection

About Suzhou Jingle Packaging Technology Co., Ltd.

Suzhou Jingle Packaging Technology Co., Ltd. is a dedicated manufacturer of liquid flexible packaging products for the food, beverage, and non-food sectors. Situated strategically in Suzhou, near the Shanghai logistics hub, the company operates advanced bag-in-the-box production lines capable of satisfying fragmented market demands. With a team boasting more than 15 years of industry experience, Suzhou Jingle Packaging Technology Co., Ltd. works closely with customers to provide complete solutions, from self-produced high-barrier bags to supporting filling equipment and professional after-sales services.

Market Applications and Technical Fulfillment

  • How does Suzhou Jingle support the foodservice sector?

    Our Dairy Bag-In-Box (BIB) Packaging is designed for seamless integration with commercial milk dispensers and coffee-making equipment. The precision-molded fitments ensure leak-proof dispensing and prevent oxygen ingress after the seal is broken.

  • Why is OTR critical for UHT dairy products?

    Ultra-High Temperature (UHT) milk is intended for ambient storage. Without the low OTR films provided by Suzhou Jingle Packaging Technology Co., Ltd., oxygen would permeate the bag within weeks, causing the dairy fats to go rancid long before the expiration date.

  • What makes Suzhou Jingle a reliable global partner?

    We combine strong technical knowledge with familiarity across various market applications. By actively exploring new market opportunities with our clients, Suzhou Jingle Packaging Technology Co., Ltd. ensures that the right complete solution—balancing cost, barrier performance, and durability—is delivered to fulfill every customer need.