APPARATUS AND PROCESS FOR APPLYING DISCRETE PORTIONS OF A WEB MATERIAL ONTO A RECEIVING WEB

• Main Authors: SCHMITZ, CHRISTOPH, JOHANN, SCHNEIDER, UWE
• Format: Patent
• Language: English; French; German
• Published: 24.09.2003
• Edition: 7
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; CONVEYING; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HANDLING THIN OR FILAMENTARY MATERIAL; HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PACKING; PERFORMING OPERATIONS; PROSTHESES; STORING; TRANSPORTING; TREATMENT OR PROTECTION OF EYES OR EARS

The present invention relates to an apparatus for applying discrete portions (10) of a web material onto a receiving web (7), comprising: a primary axis of rotation and an attachment zone at an average radial distance, R1, from the primary axis of rotation; transfer elements (6) rotatable about the primary axis, the transfer elements receiving a second web (2) at a radial distance, R2, from the primary axis wherein the radial distance R1 is greater than the radial distance R2; a means for displacing the transfer elements (6) so that the second web (2) is moved immediately adjacent to the attachment zone; and an attachment surface (10) rotatable about the primary axis and through the attachment zone, for transporting the receiving web (7) about the primary axis, whereby discrete portions (10) of the second web (2) are attached to the receiving web (7) in the attachment zone, forming a composite web comprising the receiving web (7) and discrete portions (10) of the second web (2). The present invention also relates to a process for applying discrete portions (10) of a web material onto a receiving web (7), using said apparatus.