Method of forming patterns of luminescent materials for color kinescopes

Claim 1

IN THE ART OF FORMING ON A HARD SURFACE OF A COLOR KINESCOPE PLATE A PLURALITY OF PATTERNS OF COLOR-EMITTING PHOSPHOR PARTICLES HAVING RESPECTIVELY DIFFERENT COLOREMITTING CHARACTERISTICS, EACH PATTERN CONSISTING OF A PLURALITY OF SPACED, MINUTE ELEMENTAL AREAS OF THE OTHER WITH DISTINCT SPACED, MINUTE ELEMENTAL AREAS INTERMESHED PATTERN OR PATTERNS AND WHEREIN SUBSTANTIALLY ALL OF THE PHOSPHOR PARTICLES ARE EXPOSED AT THE SURFACE OF THE PLATE; THE IMPROVED PROCESS WHICH COMPRISES, DEPOSITING BY AN OFFSET PRINTING PROCEDURE OF A SUITABLE ADHESIVE MATERIAL ON THE ELEMENTAL AREAS OF THE PLATE SURFACE WHICH ARE RECEIVED A FIRST PATTERN, SAID PROCEDURE INCLUDING THE STEPS OF DEPOSITING ADHESIVE MATERIAL DEFINING SAID PATTERN ON A RESILIENT COMPRESSIBLE BLANKET AND TRANSFERRING THE PATTERN TO THE HARD SURFACE OF THE PLATE BY PRESSING THE BLANKET CARRYING SAID PATTERN ON THE PLATE, LEAVING THE ELEMENTAL AREAS OF SAID SURFACE WHICH ARE TO RECEIVE THE OTHER PATTERN OR BARE, THEN DUSTING ON TO THE RESULTING ADHESIVE COATED ELEMENTAL AREAS WHILE IN A TACKY CONDITION A FIRST COLOR EMITTING PHOSPHOR IN THE FORM OF DRY PARTICLES, THEN REMOVING THE NON-ADHERING PHOSPHOR PARTICLES,DRYING THE ADHESIVE UNDERLYING THE ADHERING PARTICLES TO SECURELY BOND THEM TO THE PLATE, THE CHANGING THE REGISTRY BETWEEN SAID RESILIENT COMPRESSIBLE BLANKET AND THE PLATE, THEN DEPOSITING ON THE SAME RESILIENT COMPRESSIBLE BLANKET A SECOND PATTERN OF ADHESIVE MATERIAL AND TRANSFERRING SAID PATTERN FROM SAID BLANKET TO BARE AREAS OF SAID PLATE, THEN APPLYING TO SAID SECOND TRANSFERRED PATTERN OF ADHESIVE MATERIAL PHOSPHORS IN DRY POWDER FROM HAVING DIFFERENT COLOR-EMITTING CHARACTERISTICS AND REPEATING SAID STEPS OF REMOVING NON-ADHERING PARTICLES AND DRYING THE ADHESIVE MATERIAL UNDERLYING THE SECOND PATTERN OF PHOSPHORS,