Apparatus and method for applying heat-sensitive adhesive tape to a web moving at high speed

摘要: Apparatus (10, 10A) and method for applying heat-sensitive adhesive tape (12), such as frontal diaper tape, of the type having a layer (13) heat sensitive material to web moving at high speed, (14) water-resistant designed use outer disposable diapers. The apparatus comprises tape-feed wheel (16, 16A) preheating feeding (12) from supply (18, 18A) generally continuous tape-applying (20, 20A) in rolling engagement with fed it (14). includes vacuum passageways (26, 26) providing suction through cylindrical surface (22, 22A) hold thereon, heating mechanism (46, 56, 58) an elevated temperature which is tacky maintaining until applied Successive end portions are cut against into pieces (11) be (14), each successive piece accelerated by relatively slow velocity fast