Casting paper

Details Casting paper Casting paper

1996-10-18

1998-09-15

Beck, Shrive

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

427278, 427274, 427362, 427361, 427391, 428153, 4285375, B05D 312, B05D 302, B05D 502

Patent

active

058076212

ABSTRACT:
Casting paper of a desired surface texture or finish for use in the manufacture of artificial leather is produced by heating the polymer coating 1 of a polymer-coated paper 2 to a temperature sufficient to melt the polymer and then cooling the polymer coating from its molten state to a solid state as it passes through a nip between an embossing roll 3 having a surface configuration corresponding to said desired surface texture or finish and a backing roll 4, thereby to impart the surface configuration of the embossing roll to the polymer-coated paper. The polymer is preferably polyolefinic, for example poly (4-methyl-1-pentene) or a polypropylene/polyethylene blend. An anti-curl back-coat, for example of polyvinyl alcohol, can be applied after the embossing operation.

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"The Purpose and Methods of the Embossing Process", George W. Zwerver, Paper Film & Foil Converter, Jan. 1980, pp. 66, 68, 70.
"Focus on Embossing/Embossing of Thermoplastic Films", Meccaniche Colombo, Converter, Jun. 1987, pp. 21-24.
"Pragen von Papier und Pappe", J. Schlunke, Wochenblatt Fur Papierfabrikation, 21, 1976, pp. 824-827.
"Elementary Embossing, Dear Watson", Robert B. Kramer, 1984 Polymers, Laminations and Coatings Conference/TAPPI Proceedings, pp. 173 and 174.
"Web Processing and Converting Technology and Equipment", Edited by Donatas Satas, Van Nostand Reinhold Company, 1984, pp. 485-510.
"An Engineering Study of the Film Embossing Process", M.R. Kamal, A. Haber and M.E. Ryan, Polymer Engineering and Science, mid-Aug. 1985, vol. 25, No. 11, pp. 698-713.

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