| 摘要 |
PROBLEM TO BE SOLVED: To allow a tableware on a tray to be difficult to slide, to easily clean a spilled and adhered food, and to eliminate a trace of adhered food by providing a slip-proof sheet joined with a surface of a bottom plate of a tray body which is formed of a polymer containing polyolefine of at least a specified wt.%. SOLUTION: A synthetic resin tray body 15 for service which is injection- molded of polypropylene comprises an edge 15a and a bottom plate 15b, and a slip-proof sheet 10 is joined with a surface of this bottom plate 15b through the heat bonding during the pressing. This slip-proof sheet 10 is formed of a polypropylene as polyolefine and water-added SBR for other resin, and these components are mixed at the weight ratio of at least 40/60 to form a polymer of 50A-70D in surface hardness which is not melted at 150 deg.C. A sheet of 0.2-0.5 mm in thickness is formed using this polymer, and cut to a desired size to form the slip-proof sheet 10. The tray is difficult to slip, and free from any adhesion of food, and excellent for service purpose.
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