| 摘要 |
PROBLEM TO BE SOLVED: To provide a buffering material for packaging, which retains capabilities like lubricity, antiblocking property, etc., even if an additive like lubricant, antiblocing agent, antistatic agent, etc., is eliminated from the buffering material, and also retains a compressive breakage resistant strength and pinhole resistance while causes no transfer of cell marks to an article to be packaged. SOLUTION: The buffering material 10 for packaging consists of a cell layer 14, on which a plurality of projections 16 are formed, and a film layer 12 sticking to the cell layer 14. The film layer 12 and/or the cell layer 14 contain (A) an ethylene-α-olefin copolymer of 35 to 65 wt.%, which has a density of 0.91 to less than 0.94 g/cm<SP>3</SP>and a melt flow rate (MFR) of 0.1 to 10 g/10min., (B) a high-density polyethylene of 0 to 30 wt.%, which has a density of 0.94 to 0.97 g/cm<SP>3</SP>and a MFR of 0.1 to 10 g/10min., and (C) a high-pressure radical method ethylene copolymer of 35 to 65 wt.%, which has a MFR of 0.1 to 10 g/10min. The film layer 12 and/or the cell layer 14 is made of a resin composition having a density of 0.93 to 0.96 g/cm<SP>3</SP>and a MFR of 1 to 10 g/10min., and shows an oxygen induction time of 3 minutes or longer. COPYRIGHT: (C)2005,JPO&NCIPI
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