<P> In the US and Japan, plastic wrap is sometimes produced using polyvinylidene chloride (PVdC), though some brands, such as Saran wrap, have switched to other formulations due to environmental concerns . </P> <Ul> <Li> Wrapping premature babies in plastic wrap immediately after birth helps prevent low temperature before arrival to the neonatal intensive care unit . </Li> <Li> Plastic wrap is used to contain the external organs of babies with rare medical conditions prior to surgery . </Li> </Ul> <Li> Wrapping premature babies in plastic wrap immediately after birth helps prevent low temperature before arrival to the neonatal intensive care unit . </Li> <Li> Plastic wrap is used to contain the external organs of babies with rare medical conditions prior to surgery . </Li>

When was cling film first used in the uk