What Are the Common Types of Spout Stand-Up Pouches?
Based on the design of the suction nozzle and the cover, it is mainly divided into:
Screw-on nozzle: The most common type, it opens and closes by rotating the cap. It has the best sealing performance and is often used for beverages, detergents, etc.
Flip-top nozzle: The nozzle is activated by flipping the cap. The operation is faster and it is often used in sports drinks, infant food, etc. which require quick consumption.
Hole-covered nozzle: The inside of the cap has holes. After opening, it can be directly squeezed for use. It is suitable for sauces, cosmetics, etc.
High-barrier nozzle: For products sensitive to oxygen or water vapor (such as juice, edible oil), the nozzle itself has a special barrier.
Material Structure of Spout Stand-Up Pouches
The body of the bag is usually made of multiple layers of composite materials to meet the requirements of different products:
Outer layer: PET or BOPP, providing excellent printing adhesion, high glossiness and wear resistance.
Middle layer (barrier layer): AL (aluminum foil) offers the highest barrier performance; VMPET (aluminum-coated polyester) provides good barrier properties and metallic luster; EVOH offers excellent oxygen barrier properties.
Inner layer (heat sealing layer): PE or CPP, providing good heat sealing performance to ensure a secure seal at the bag edge and the suction nozzle area.
Example: An upscale bottled fresh juice might adopt a structure of PET/AL/PE, while a sauce sensitive to oxygen might use a structure of PET/EVOH/PE.
Application Fields of Spout Stand-Up Pouches?
The application of Spout Stand Up Pouch is extremely extensive:
Food and beverages: Juice, fruit puree, yogurt, cooking oil, soy sauce, vinegar, honey, syrup, tomato sauce, baby food.
Daily care products: Laundry detergent, fabric softener, shampoo, body wash, hand sanitizer, toothpaste (supplemental pack).
Industrial and automotive: Engine oil, lubricating oil, antifreeze, cleaning agent.
Pet supplies: Pet snacks, nutritional liquid.
Advantages and Challenges of Spout Stand-Up Pouches?
1. Advantages:
Consumer experience first: Easy to pour and reliable sealing have greatly enhanced user satisfaction.
Brand differentiation: Unique shape and exquisite printing enable it to stand out in the competition.
High supply chain efficiency: The cost of transporting and storing empty bags is much lower than that of empty bottles.
Product preservation: Excellent barrier properties and repeatable sealing ensure the quality of the contents.
2. Challenge:
Higher cost: The use of nozzles, caps and complex bag-making processes results in higher costs compared to ordinary self-standing bags or bottles.
Filling speed: The filling production line requires specialized nozzle positioning and sealing equipment, which may result in a slower filling speed than ordinary bottle lines.
Standing stability: For bags with contents that are too light or too heavy, the bottom structure and material strength need to be carefully designed to prevent tipping.
Environmental pressure: The combination of multi-layer composite materials and hard plastic nozzles poses challenges for recycling. The industry is actively developing single-material (all PE or all PP) recyclable solutions.
