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Constructing a durable spout pouch involves laminating multiple specialized material layers together based on product protection requirements. The outermost layer typically consists of PET or oriented nylon, offering excellent printability and high puncture resistance. An inner barrier layer, often made of aluminum foil or specialized EVOH resin, blocks light, oxygen, and moisture from degrading sensitive ingredients. The innermost layer is generally made of food-grade polyethylene, which provides strong seals and remains chemically inert when contacting the packaged liquid. These combined materials ensure long shelf stability and physical durability under varying environmental conditions.
Read More – https://www.singhalglobal.com/products/spout-pouch