BLOOD BAG AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a blood bag having improved anti-blocking property by forming a fine ruggedness on an inner surface of the bag by inflation molding even without executing embossing. SOLUTION: The blood bag 1 is formed by inflation molding a resin composition obtained by adding 10 to 60 pts.wt. of a partially crosslinked polyvinyl chloride having poor compatibility with a polyvinyl chloride to 90 to 40 pts.wt. of the polyvinyl chloride. The bag 1 comprises the fine ruggedness formed on an inner surface of a body 1A due to the partially crosslinked polyvinyl chloride.