Enveloping or filling material - in form of small bodies made of fibres, strips, small chips etc., in natural materials

摘要

An enveloping or filling material takes the form of small bodies shaped as required for use in packaging containers. The small bodies are made of natural products in the form of fibres, strips, small chips or other small particles, which are pressed and/or glued together. Possible materials include: straw, hay, grass, paper, board, sawdust, textile fibres, animal hair etc. ADVANTAGE - Material and mfg. process causes no pollution but is still economical.