Wholesale Tea & Coffee Liquid Bag-In-Box(BIB) Packaging

What are the specific characteristics of multi-layer film inner bags used in BIB packaging for tea and coffee liquids (such as those used by the "Fuchitai Na" brand)? Including their thickness, strength, moisture resistance and oxygen barrier properties, to ensure that tea and coffee liquids can maintain freshness and extend shelf life?

At our company, continuous exploration and innovation are the core driving forces for business development. We are committed to providing excellent products and comprehensive solutions to local and global customers. Through close customer cooperation, we not only deeply understand market needs, but also actively explore emerging market opportunities. This commitment is fully reflected in our production practices, especially when we talk about BIB (bag in box) packaging for tea and coffee liquids. The use of multi-layer film inner bag technology, such as that used by the "Fuchitai Na" brand, is the best example of our pursuit of quality and technology.
As tea and coffee liquids are extremely sensitive to oxygen, moisture and light, the choice of packaging materials is crucial and directly related to the flavor retention, freshness and shelf life of the product. Our company has introduced and optimized multi-layer film inner bag technology, which is specially designed for such sensitive products to ensure that the original flavor and quality of the product can be protected to the maximum extent during transportation, storage and consumer use.
The thickness of the multi-layer film inner bag is carefully calculated to balance strength and cost-effectiveness. For tea and coffee liquid, thicker materials can provide better physical protection against damage caused by external pressure or puncture. At the same time, the multi-layer composite materials we use, such as high-strength polyethylene (PE), nylon, aluminum foil and ethylene-vinyl alcohol copolymer (EVOH), not only ensure the structural strength of the bag, but also achieve lightweight through the optimized combination of each layer of materials, while maintaining excellent tear resistance and pressure resistance. This design allows the packaging to remain intact when it withstands physical challenges such as squeezing and falling during daily transportation and storage, ensuring product safety. Moisture resistance is one of the important indicators for evaluating the performance of packaging materials, especially for tea and coffee liquid products that contain a lot of water or need to avoid water penetration. The EVOH layer plays a vital role in our multi-layer film inner bags. EVOH is a high barrier material with extremely high barrier properties to water molecules, which can effectively prevent moisture intrusion and keep the environment inside the bag dry. In addition, through precise process control, the layers of materials are closely fitted to avoid water seepage channels caused by interlayer separation, further improving the overall moisture-proof performance. This design not only extends the shelf life of the product, but also ensures that consumers taste pure, odorless products.
Oxygen is one of the main factors that cause food oxidation and deterioration. For tea and coffee liquid, oxidation can cause aroma loss, color change and taste deterioration. Therefore, we selected materials with high barrier layers, such as aluminum foil and special nylon layers, which can significantly reduce the oxygen permeability. Aluminum foil, with its nearly perfect oxygen barrier performance, becomes the first line of defense to block the intrusion of external oxygen; while the specific type of nylon layer achieves efficient oxygen barrier by adjusting the molecular structure. This multi-layer structure design ensures that the oxygen concentration in the inner bag is maintained at an extremely low level, effectively inhibiting the occurrence of oxidation reactions, thereby maintaining the original flavor and color of tea and coffee liquid and extending the shelf life of the product.
According to the characteristics of different tea and coffee liquid products, we also provide customized BIB packaging services. Whether it is ordinary BIB packaging, standard barrier BIB packaging, high barrier or even ultra-high barrier BIB packaging, we can flexibly adjust the material composition, thickness and barrier properties according to the specific needs of customers to achieve the best protection effect. For example, for concentrated tea juice rich in volatile aroma components, we will use a combination of materials with a higher barrier level to ensure that the aroma is locked for a long time; for extracted coffee liquid, we will focus on the material's stability to oil and flavor retention ability, and adjust the formula to ensure that the coffee liquid does not produce adverse flavor changes during storage.
Throughout the manufacturing process, we implement a strict quality control process, from raw material procurement, production and processing to finished product inspection, and every step follows international standards and industry best practices. This not only ensures the stable quality of the product, but also provides a solid foundation for us to continuously optimize and upgrade packaging technology. At the same time, we continue to pay attention to industry development trends, invest in research and development, and explore new materials and technologies, such as the application of bio-based materials, aiming to provide customers with more environmentally friendly and efficient packaging solutions.
The multi-layer film inner bag technology used by our company, with its excellent thickness design, high strength, excellent moisture resistance and oxygen barrier properties, provides all-round protection for tea and coffee liquid products, ensuring the freshness, flavor and shelf life of the products. Combined with our team's deep industry experience, customized service capabilities and strict quality control system, we are confident that we can provide customers with packaging solutions that exceed expectations and jointly promote the sustainable development of the food industry.