Embossing rolls and product thereof

Claim 1

THE PROCESS OF PREPARING A PAIR OF MATED FEMALE AND MALE EMBOSSING STEEL ROLLS FROM A PHOTOENGRAVED POLISHED FEMALE STEEL ROLL HAVING DEPRESSION OF A DEPIN OF ABOUT ONE THOUSANDTH OF AN INCH COMPRISING HEATING SAID PHOTOENGRAVED ROLL, COATING SAID ROLL, WITH A HOT ASPHALT-LATEX ACID RESISTANT COMPOSITION OF ABOUT .001 TO .003 INCH THICK WITHOUT DEPOSITING AND COMPOSITION IN SAID DEPRESSIONS, COOLING SAID COATED ROLL, ETCHING SAID COATED ROLL WITH AQUEOUS ACID SOLUTION IN THE UNCOATED DEPRESSIONS AND FORMING CHEMICALLY UNDERCUT CAVITATED DEPRESSIONS OF ABOUT 30 MIL DEPTH HAVING A UNIFORM PERIPHERAL KNIFE EDGE, COATING A POLISHED MALE STEEL ROLL WITH ACID RESISTANT WAAX COMPOSITION, CONTACTING WITHOUT PRESSURE SAID FEMALE CAVITATED ROLL TO THE SURFACE OF THE COATED MALE ROLL TO FORCE THE COMPOSITION INTO THE CAVITIES OF SAID FEMALE ROLL, REMOVING SAID FEMALE ROLL FROM CONTACT WITH SAID MALE ROLL LEAVING THE CAVITIES OF THE FEMALE ROLL DESIGN ON SAID MALE ROLL AS A PLURALITY OF WAX PROTUBERANCES SURROUNDED BY MALE ROLL BRIGHT METAL, ETCHING SAID MALE ROLL BRIGHT METAL AREAS WITH ACID SOLUTION TO PRODUCE CAVITIES IN SAID MALE ROLL, RECOATING SAID ETCHED CAVITATED MALE ROLL WITH ACID-RESISTANT COMPOSITION, CONTACTING WITHOUT PRESSURE SAID RE-COATED MALE ROLL IN MATING RELATIONSHIP TO SAID FEMALE ROLL, INSERTING SAID MALE PROTUBERANCES INTO SAID FEMALE DEPRESSIONS SO THAT THE LEADING AND RETREATING WAX COATED PROTUBERANCE WALLS ARE WIPED BY THE RESPECTIVE KNIFE EDGES OF THE FEMALE CAVITY TO EXPOSE BRIGHT METAL LEADING AND RETREATING PROTUBERANCE WALLS, AND ETCHING SAID MALE ROLL AND ITS BRIGHT METAL AREAS EXPOSED ON THE PROTUBERANCE WALLS WITH AN ACID SOLUTION TO PRODUCE PROTUBERANCE HAVING A ROTATIVE PITCH ANGLE ON SAID LEADING AND RETREATING WALLS.