Method for the in situ covering of large diameter process rolls with heat shrinkable films of fluorinated ethylene polymers and the like
Abstract
Abstract A METHOD OF COVERING LARGE DIAMETER ROLLS WITH A HEAT SHRINKABLE COVERING MATERIAL, PARTICULARLY HIGH MOLECULAR WEIGHT, HIGH VISCOSITY, THERMOPLASTIC MATERIALS, SUCH AS TEFLON FEP FILM, IS DISCLOSED, WHICH INCLUDES IN SITU HEAT SEAL JOINING OF AN ORIENTED FILM TO FORM A HEAT SHRINKABLE TUBE. THE NEW METHOD PROVIDES FOR A COMPLETE CIRCUMFERENTIAL ADHESIVE BOND BETWEEN THE ROLL SURFACE AND THE RELATIVELY NON-ADHERENT COVERING MATERIAL, SPECIFICALLY INCLUDING THE REGION OF THE HEAT SEAL JOINT, BY UTILIZING A NARROW SEALING STRIP ALONG THE LONITUDINAL JOINT OF THE COVERING MATERIAL. THE SEALING STRIP IS HEAT SEALABLE ON ONE SIDE TO THE COVERING MATERIAL AND ADHESIVELY JOINABLE TO THE ROLL SURFACE OF ITS OTHER SIDE.
Inventors
- 👤 Robert Roberts
Bibliographic Details
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