US 5,397,683 AGranted

Photochemical method of making decorative designs

OwnerGerald Rolandinventor

Life of this patent

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Abstract

A photochemical method of making a tactile design comprises the steps of exposing to light a selected portion of photo-sensitive layer-supported by a substrate; applying a decorative coating to the photo-sensitive layer; applying a photo-sensitive emulsion over the decorative coating; exposing to light the same selected portion of the photo-sensitive emulsion; and removing the photo-sensitive emulsion, the decorative coating, and the photo-sensitive layer from the non-selected portions. The tactile design comprises a layer of photo-sensitive material fixedly attached to a selected portion of a substrate wherein the layer has been exposed to light and the layer projects away from the surface of the substrate a sufficient distance to be sensitive to the touch. At least one decorative coating is fixedly attached to the photo-sensitive layer.

Claims13

Dependent claims

A photochemical method of making a tactile design comprising the steps of:

(a) providing at least one photosensitive layer fixedly attached to a substrate;
(b) exposing a selected portion of the at least one photo-sensitive layer to light;
(c) applying, after step (b), a decorative coating to the at least one photo-sensitive layer;
(d) drying the decorative coating;
(e) applying a prep-coat powder over the decorative coating;
(f) applying a photo-sensitive emulsion over the prep-coat powder;
(g) drying the photo-sensitive emulsion;
(h) then exposing the photo-sensitive emulsion to light over the same selected portion;
(i) removing the photo-sensitive emulsion from areas unexposed in step (h);
(j) then drying residual moisture from step (i);
(k) then removing the decorative coating from areas left unprotected by the removing of the photo-sensitive emulsion in step (i);
(l) then drying residual moisture from step (k);
(m) then removing the photo-sensitive emulsion from areas exposed in step (h);
(n) then removing the photo-sensitive layer from areas unexposed in step (b) and thereby forming the tactile design;
(o) then applying a dispersant to the tactile design;
(p) then drying residual moisture from steps (n) and (o);
(q) then exposing the tactile design to light until all areas of the tactile design are hardened.

14 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/036,315Filed 24 Mar 1993
Granted: 14 Mar 1995
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

G03F 7/2022
Exposure; Apparatus therefor: multi-step exposure, e.g. hybrid; backside exposure; blanket exposure, e.g. for image reversal; edge exposure, e.g.…
Y10S 430/153
Radiation imagery chemistry: process, composition, or product thereof: multiple image producing on single receiver
G03F
Photomechanical production of textured or patterned surfaces
Y10S
Technical subjects covered by former uspc cross-reference art collections [xracs] and digests