METHOD OF MANUFACTURING MEDICAL SCOTCH TAPE Russian patent published in 2001 - IPC

FIELD: chemical and pharmaceutical industry. SUBSTANCE: tape is manufactured from thin and elastic reticulate, porous, fibrous or transparent film materials, adhesive being acrylic glue with viscosity 5-3 thousand mPa.s or rubber glue without fillers with viscosity 5-20 thousand mPa.s. Adhesive is applied on inadhesive transferring paper by doctor technique leaving gap of 20 to 100 mcm between ledge of spreading knife and paper. Drying is accomplished by multi-step lowering of temperature of heated air maintaining each temperature level for 1 to 5 min. Adhesive layer dried to moisture content 15% is joined to support and pressed at pressure at pressure rolls 3-6 atm. Resulting ensemble is wound and kept during 2-3 days, while adhesive layer of dried glue transfers onto support providing satisfactory adhesion to material. Then, material consisting of support, adhesive, and inadhesive coating (release layer) is cut into pieces with required dimensions, which are ready to use and put over skin by their adhesive layer. EFFECT: increased viability and avoided irritation for human skin. 3 cl