A METHOD AND A MACHINE FOR HEAT-SHRINKING HEAT-SHRINK SLEEVES ENGAGED INDIVIDUALLY ON ARTICLES SUCH AS BOTTLES

摘要

A method of heat-shrinking sleeves made from a film of heat-shrink plastics material and engaged individually on articles such as bottles, the method being .characterized in that it comprises the following successive steps a) placing a single article on a moving support, a sleeve being engaged on said article; b) transferring the article together with its sleeve into a pre-heater chamber at a controlled temperature, and maintaining said article in said chamber for a predetermined duration so as to prepare the film constituting the sleeve in o}?timum manner for subsequently shrinking the sleeve onto the article; c) passing the article together with its sleeve, by displacement at a controlled ! i speed along a single vertical direction, through a shrinkage chamber at ' controlled temperature, the shrinkage chamber being adjacent to the pre-heater chamber, thereby causing the sleeve to shrink onto the article; and d) removing I the article coated in its shrunk-on sleeve from the support.