Heat shrinkable tube of polyvinyl chloride for protecting...

B - Operations – Transporting – 65 – D

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18/978

B65D 85/50 (2006.01) A01G 5/06 (2006.01) B29C 61/00 (2006.01)

Patent

CA 1231821

ABSTRACT A heat shrinkable tube of polyvinyl chloride for covering the stem of cut flowers, said heat shrinkable tube having the following properties: (a) a shrinkage at 60°C of 8% or less in the lengthwise direction, and from 10% to 20% in the circumferential direction; (b) a shrinkage at 80°C of 20% or less in the lengthwise direction, and from 35% to 45% in the circumferential direction; (c) a shrinkage-initiating temperature in the circumferential direction of from 40°C to 55°C; (d) a softening temperature of from 40°C to 55°C; and (e) a thickness of from 50 µm to 100 µm.

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