摘要:
A system for embossing a substantially continuous web (10,16) of material including a supply for supplying at least one substantially continuous web (10,16) of material, feeding the substantially continuous web of material (10,16), an embossing device for embossing a predetermined pattern in the web material (10,16) and a take-up device for taking-up the embossed web material; wherein at least one roll (100) of the system includes an elongated core (107) formed of a substantially rigid material and an elongated sleeve (103) formed of a material less rigid than the elongated core (107) with the elongated sleeve (103) being releasably secured to the core (107) such that the elongated sleeve (103) is axially and circumferentially fixed with respect to the core (107) when in operation and can be selectively axially removed from the core (107). Preferably, the sleeve (103) includes an embossing pattern laser engraved thereon so as to permit the embossing pattern being run by the system to be readily changed.
摘要:
A method and apparatus for pinch perforating multi-ply web material (2) to increase the perforation ply bond and/or perforation ply bond retention by pinching the multiple plies of web material together and then perforating the material using an anvil (25) and perforator blade (7) design provided on a perforating apparatus. Specifically, the apparatus comprises a roll mounted contoured perforator blade (7) which cooperates with a beveled anvil (25) to produce perforation ply bonds perpendicular to the length of the multiple plies of web material (2). The desired anvil/perforator blade interface angle between 0° and 20° is provided by beveling the anvil. A 15° beveled anvil is preferred to provide a 5° anvil/perforator blade interface angle. By pinching and bonding the leading edges and other predetermined points of the multi-ply tissue paper together before cutting, the likelihood of ply separation, missing plies and ply mismatch is greatly reduced.
摘要:
A method and apparatus for pinch perforating multi-ply web material (2) to increase the perforation ply bond and/or perforation ply bond retention by pinching the multiple plies of web material together and then perforating the material using an anvil (25) and perforator blade (7) design provided on a perforating apparatus. Specifically, the apparatus comprises a roll mounted contoured perforator blade (7) which cooperates with a beveled anvil (25) to produce perforation ply bonds perpendicular to the length of the multiple plies of web material (2). The desired anvil/perforator blade interface angle between 0° and 20° is provided by beveling the anvil. A 15° beveled anvil is preferred to provide a 5° anvil/perforator blade interface angle. By pinching and bonding the leading edges and other predetermined points of the multi-ply tissue paper together before cutting, the likelihood of ply separation, missing plies and ply mismatch is greatly reduced.