| 摘要 |
<p>PURPOSE:To improve the preservability of a platelet by forming a container from a soft vinyl chloride resin composition containing 1-30wt.% of crosslinked vinyl chloride resin particles having a mean particle size of 2-3mum so as to provide fine unevenness to the surface of the inner wall of the container. CONSTITUTION:When a platelet preserving container is formed from a soft vinyl chloride resin composition containing 1-30wt.% of crosslinked vinyl chloride resin particles having a mean particle size of 2-30mum, fine unevenness due to the particles having a prescribed particle size of crosslinked polyvinyl chloride is obtained on the surface of the inner wall of the container. Inner surface roughness RMAX (DIN) wherein the surface roughness of the inner wall of the container is substantially rough in a 100-time SEM image and substantially smooth in a 3000-time SEM image becomes 5-30mum. The platelet preserving container having no possibility of the mixing of foreign matter and excellent in platelet preservability can be provided without using an expensive emboss roll.</p> |
