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Our spouts are injection-molded from food-grade PE/PP materials, with dimensional accuracy controlled by precision molds to ensure seamless compatibility with various flexible packages such as stand-up pouches, composite bags, and aluminum foil bags. The one-piece sealing structure, combined with a leak-proof lip design, effectively prevents liquid leakage. Whether for fruit juice, sauces, liquids, or condiments, they deliver the convenient experience of "ready to suck with one opening, no leakage when inverted." Available in custom calibers (16mm-38mm), lengths, and thread specifications, they support surface treatments like matte or transparent finishes, balancing practicality with brand recognition—making them a core accessory for liquid flexible packaging.
Flexible packaging is made from materials such as plastic films, aluminum foil laminates, and paper composites that can be formed into pouches, bags, or roll films. Compared with rigid packaging, it offers lower transportation costs, excellent barrier protection, and greater design flexibility.
SL Packaging manufactures a complete range of flexible packaging solutions, including:
Stand Up Pouches | Flat Bottom Bags | Side Gusset Bags |
Vacuum Bags | Spout Pouches | Zipper Bags |
Three Side Seal Bags | Roll Film | Plastic Packaging Bags |
Composite Packaging Bags | ||
All products can be fully customized to meet your packaging requirements.
Yes. We provide complete OEM and ODM flexible packaging services, including customization of:
Bag type and dimensions | Material structure | Film thickness |
Gravure printing | Matte or glossy finish | Zippers, valves, spouts, tear notches, hang holes, and other functional features |
Our engineering team can also recommend the most suitable packaging structure based on your product, filling process, storage conditions, transportation requirements, and desired shelf life.
We offer a wide range of laminated material structures, including:
PET/PE | PET/AL/PE | PET/VMPET/PE |
BOPP/CPP | Nylon/PE | Kraft Paper/PE |
Mono-material recyclable structures | ||
Material selection is customized according to barrier performance, product characteristics, shelf-life requirements, and packaging equipment.
Our flexible packaging solutions are widely used in:
Food and snacks | Coffee and tea | Frozen foods |
Pet food | Spices and seasonings | Powder products |
Agricultural products | Health supplements | Cosmetics |
Household chemicals | Industrial products |
We also manufacture packaging compatible with both manual filling and automatic packaging systems.
The minimum order quantity depends on the bag type, dimensions, material structure, and printing design.
We can provide existing samples for quality evaluation, and customized samples can be produced before mass production when required.
Quality control is implemented throughout the entire production process, including raw material inspection, gravure printing, lamination, bag making, and final inspection.
Every production stage is carefully monitored to ensure consistent quality, reliable sealing performance, and compliance with customer specifications.
Yes. SL Packaging exports flexible packaging products worldwide, serving customers across North America, Europe, Southeast Asia, the Middle East, South America, Africa, and other global markets.
To receive a quotation, simply provide:
Product to be packed | Bag or pouch type | Dimensions |
Material preference | Thickness | Printing artwork |
Estimated order quantity |
Our packaging specialists will recommend the most suitable solution and provide a competitive quotation promptly.
Laundry detergent refill packaging is becoming an important option for brands that want to offer convenient, lightweight, and customizable packaging for household cleaning products. Compared with conventional rigid detergent containers, a flexible refill pouch can be designed in different capacities, material structures, shapes, and closure configurations according to the detergent formulation and filling process.
Pet food packaging is not simply a container for holding dog food or cat food. The packaging needs to protect the contents during transportation and storage while providing practical opening, closing, filling, and branding functions. For pet food brands, distributors, wholesalers, and private-label companies, choosing the right pet food packaging bags can directly affect product presentation and packaging performance.
Liquid detergent brands are increasingly looking for packaging formats that are easier to handle, store and refill while reducing the amount of rigid packaging used per unit of product. A detergent refill spout pouch combines flexible film packaging with a functional spout, providing a practical option for liquid laundry detergent, concentrated detergent, fabric softener and other household cleaning products.
Resealable plastic packaging bags offer convenience, freshness protection, and reusability. They are used in food, consumer goods, ecommerce, and industry. Closure design, material choice, and quality control affect performance. Shenlong Packaging Products Co., Ltd. exports resealable plastic packaging bags from China. With over 20 years of experience, the company provides custom and OEM packaging solutions for global buyers.
Transparent plastic bags for packaging are widely used in food, retail, ecommerce, and industrial sectors. These bags allow users to see the product without opening the package. This feature supports quick inspection, inventory control, and retail display.
