Rubber-to-steel mated embossing

Details Rubber-to-steel mated embossing Rubber-to-steel mated embossing

1992-01-09

1993-12-14

Lowe, James

Boots, shoes, and leggings

162109, 162117, 264154, 264219, 264284, B29C 5904

Patent

active

052699838

ABSTRACT:
A mated pair resilient and rigid embossing rolls are disclosed for achieving the advantages of conventional rubber to steel embossing, while avoiding the problems of conventional embossing approaches. In particular, a laser can be utilized to form recesses in a resilient roll such that the resilient roll receives protuberances of a rigid male embossing roll when the rolls are placed in contact. By providing recesses on the resilient roll, the pressure or force required for causing the rubber to flow around the protuberances can be significantly decreased as compared to conventional rubber to steel embossing. As a result, wear on the rolls is reduced, and smaller diameter rolls may be utilized, thereby reducing the cost of the embossing equipment. In addition, since less pressure is required to cause the rubber to flow about the protuberances, roll deflection is not a problem, and an embossed pattern can be imparted having a consistent, high degree of definition across the width of a web.

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