Method of forming heat activated transfer for improved adhesion

Details Method of forming heat activated transfer for improved adhesion Method of forming heat activated transfer for improved adhesion

1997-10-24

1999-12-28

Dixon, Merrick

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156272, 156555, 156380, B65C 925

Patent

active

060076704

ABSTRACT:
A laminate suitable for formation of athletic lettering and other decoratives which has improved adhesion and reduced curling is formed by forming a laminate from a pigmented polyurethane and a polyester adhesive layer. Either the individual lamina prior to lamination, or the formed laminate are annealed for 1 to 100 hours at a temperature from 100.degree. to 250.degree. F. to relieve stress and prevent curling. Preferably, the polyurethane layer does not include any external lubricants and has a high durometer which, in turn, permits formation of letters on letters without bleedthrough and with improved adhesion.

REFERENCES:
patent: 3660212 (1972-05-01), Liebe, Jr.
patent: 4069081 (1978-01-01), Drower et al.
patent: 4302495 (1981-11-01), Marra
patent: 4533592 (1985-08-01), Bingham
patent: 4548857 (1985-10-01), Galante
patent: 4755246 (1988-07-01), Monia

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