PACKAGING MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a packaging material with which a load applied to environments in disposal after unsealing is reduced to prevent environmental pollution by making an advantage of easiness in disposal of a biodegradable resin. SOLUTION: The heat-shrinkable packaging material 4 is made by fusion- sealing ends of a film to each other into a bag form for packaging a product with the bag-formed film. A base 10 comprises a biodegradable film. A print layer 16 is formed on the film by ink of a binder mainly containing an aliphatic polyester comprising poly-lactic segments and poly-glycerin segments. The packaging material 4 includes an overcoat layer 14 comprising a mixture of a poly- lactic-acid-based resin having the poly-lactic segments and the poly-glycerin segments, and a polysaccharide soluble in an organic solvent for coating the print layer 16 to prevent adhesion due to heat. COPYRIGHT: (C)2003,JPO