Process for developing porosity in air impervious film and articles produced by the process.

摘要

A process for developing porosity in air impervious film. The process is disclosed for fabricating a cushion article having a cover provided with increased air flow capabilities. The process includes providing a cushion body in the shape of the article. A covering is provided for at least part of the cushion article, the covering including an air impervious film having heat absorptive particles thereon in at least a selected area thereof. The particles are subjected to heat at a temperature sufficient to produce holes in the film adjacent the particles and to thereby form air flow passages through the film.