The materials of home compostable pouch

2024-07-10

Creating a home compostable pouch typically involves combining materials that can break down naturally in a composting environment. Here's a breakdown of the materials you mentioned:

  1. NK (Natureflex): Natureflex is a brand of cellulose film derived from renewable wood pulp. It is known for its compostability in home composting conditions.

  2. Kraft Paper: Kraft paper is a strong, natural paper that is biodegradable and compostable. It adds strength and structure to the pouch.

  3. PLA (Polylactic Acid): PLA is a bioplastic made from renewable resources like corn starch or sugarcane. It is compostable under industrial composting conditions and some formulations are also home compostable.

Structure Options:

  • Option 1: NK / Kraft Paper Composite

    • Outer Layer: Kraft Paper (for strength and rigidity)
    • Inner Layer: NK (Natureflex) film (provides moisture barrier and compostability)
  • Option 2: NK / PLA Composite

    • Outer Layer: NK (Natureflex) film (for moisture barrier and compostability)
    • Inner Layer: PLA film (provides additional barrier properties and compostability)
  • Option 3: Kraft Paper / PLA Composite

    • Outer Layer: Kraft Paper (provides structure and compostability)
    • Inner Layer: PLA film (provides barrier properties and compostability)

Considerations:

  • Compostability: Ensure all layers of the pouch are certified home-compostable or compostable under industrial conditions, depending on your target market and disposal expectations.

  • Barrier Properties: Depending on the contents of the pouch (e.g., dry goods versus liquids), ensure the inner layers provide adequate barrier properties to maintain product freshness and integrity.

  • Printing and Labeling: Use eco-friendly, water-based inks and adhesives for printing and labeling to maintain the compostability of the overall pouch.

  • Testing: Conduct compostability tests according to relevant standards (e.g., ASTM D6400 for industrial composting or ASTM D6868 for home composting) to verify the suitability of the pouch for composting environments.

By carefully selecting and combining these materials, you can create a home compostable pouch that meets environmental standards while fulfilling functional requirements for packaging your product.

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