Elastic band heat activation system

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor

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Details

156282, 156498, B32B 3100

Patent

active

053686667

ABSTRACT:
An elastic band activation apparatus for activating a heat-sensitive thermal film attached to an edge of a body of an article to form an elastic band along the edge of the article. The apparatus has at least one chamber with a heating zone having a shrinkage atmosphere at a first temperature sufficiently elevated to activate the heat-sensitive thermal film to shrink the film to form the elastic band. The chamber may also have a cooling zone with a quench atmosphere at a second temperature which is less than the first temperature to arrest the shrinkage of the heat-sensitive thermal film. An article transporter transports the article through the heating zone and then through the cooling zone. The apparatus may also include two lateral compression bars for spreading apart first and second adjacent edges of an article when transported through the chamber to expose the article interior region to activate first and second heat-sensitive thermal films, thereby forming first and second elastic bands. Alternate methods of forming elastic bands along an edge of an article are also provided.

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