Method of forming an embossed pattern

Details Method of forming an embossed pattern Method of forming an embossed pattern

1976-07-01

1977-11-22

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156659, 156905, C23F 102

Patent

active

040594793

ABSTRACT:
A method of forming an embossing pattern in which, on the working surface of the first of a pair of steel rolls, an acid-resistant coating corresponding to the pattern intended for embossing is formed on the positive or convex form, and on the working surface of the second steel roll, an acid-resistant coating is placed thereover except on the part that will be the negative or concave form, where the second steel roll is identical in size to the first and symmetrical thereto; and then the surface part not covered by the acid-resistant coating on each roll is corroded by etching to form a concavity and convexity on the respective working surfaces thereof, causing the predetermined side etching to take place on each side surface of the concavity and convexity, so that an appropriate clearance may be formed between the side surfaces of the concavity and the convexity facing each other, as both working surfaces are coincidentally fitted together.

REFERENCES:
patent: 2662002 (1953-12-01), Sunderhauf et al.
patent: 2816025 (1957-12-01), Dahlberg
patent: 2926076 (1960-02-01), Guenst
patent: 3198111 (1965-08-01), Ellis et al.
patent: 3309984 (1967-03-01), Mackay

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