RELEASE PAPER

• Main Authors: MORIMOTO KATSUHIKO, KISHIMOTO TAKEHIKO, KATO TOSHIMASA
• Format: Patent
• Language: English
• Published: 29.10.1996
• Edition: 6
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; BANDAGES, DRESSINGS OR ABSORBENT PADS; CHEMISTRY; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; DYES; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; IMPREGNATING OR COATING OF PAPER; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MEDICAL OR VETERINARY SCIENCE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PAINTS; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PERFORMING OPERATIONS; POLISHES; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; PRODUCTION OF CELLULOSE; PROSTHESES; PULP COMPOSITIONS; TEXTILES; TRANSPORTING; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; TREATMENT OR PROTECTION OF EYES OR EARS; USE OF MATERIALS AS ADHESIVES

PURPOSE: To obtain a release paper without causing the deterioration in laminate strength even in preserving the paper for a long period by forming a specific filling layer in the release paper used for protecting the tacky surface such as a plaster. CONSTITUTION: This release paper is obtained by forming a filling layer comprising a polyolefin resin, preferably polyethylene resin, on the surface of a paper substrate having 0.65-0.88g/cm density and further forming a release agent layer thereon in the release paper used for protecting the tacky surface of a tacky sheet containing a volatile component having hydroxyl groups in the tacky agent layer (e.g. a plaster). Furthermore, a method for carrying out the melt extrusion lamination of the resin onto the paper substrate, a method for forming the resin into the shape of a film and carrying out the wet, and method for dry lamination, etc., are used as the method for forming the filling layer on the surface of the paper substrate.