Integrated laminating process
AssigneeE. I. Du Pont de Nemours and Company
InventorsYvan P. Pilette, Daniel D. Johnson
Life of this patent
Estimating the term…
Abstract
An integrated process for laminating a continuous layer of photosensitive composition to the surface of each member of a series of substrate elements and automatically trimming the layer from the leading and trailing edges of the laminated substrate elements.
Claims12
An integrated process for laminating a continuous layer of photosensitive composition to a surface of each member of a series of substrate elements and trimming the layer from at least one of the transverse edges of the laminated substrate elements comprising the sequential steps of:
- (1) advancing a continuous layer of photosensitive organic polymeric composition, the layer being supported on one side only by a strippable polymeric film, and advancing the continuous supported layer and a first substrate element to the nip of a set of laminating rolls;
- (2) contacting the unsupported surface of the supported layer with a surface of the substrate element within the nip under pressure to effect lamination of the layer to the surface of the substrate element;
- (3) pulling on the laminated substrate element along its longitudinal axis in the direction of advancement by which the breaking strength of the laminated layer and, if present, the support film is exceeded at a trailing edge of the substrate transversely to the direction of advancement;
- and
- (4) repeating the sequence of steps (2) through (3) with respect to subsequent substrate elements in the series.
An integrated process for laminating a continuous layer of photosensitive composition to a surface of each member of a series of substrate elements and trimming the layer from at least one of the transverse edges of the laminated substrate elements comprising the sequential steps of:
- (1) advancing a continuous layer of photosensitive organic polymeric composition, the layer being supported on one side only by a strippable polymeric film, and advancing the continuous supported layer and a first substrate element to the nip of a set of laminating rolls;
- (2) contacting the unsupported surface of the supported layer with a surface of the substrate element within the nip under pressure to effect lamination of the layer to the surface of the substrate element;
- (3) removing the support film from the layer as the laminated substrate element emerges from the nip of the laminating rolls and continuing advancement of the laminated substrate element until the support film is completely removed from the laminated layer;
- (4) pulling on the laminated substrate element along its longitudinal axis in the direction of advancement by which the breaking strength of the laminated layer and the support film is exceeded at a trailing edge of the substrate transversely to the direction of advancement;
- and
- (5) repeating the sequence of steps (2) through (4) with respect to subsequent substrate elements in the series.
Dependencies are inferred from the claim text.