Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Reshaping running or indefinite-length work
Patent
1975-10-03
1976-12-28
Bashore, S. Leon
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Reshaping running or indefinite-length work
29113AD, 100163R, 100170, 100211, 101 23, 156220, 162117, 162362, 425368, B31F 100
Patent
active
040002420
ABSTRACT:
A system for treating paper webs and the like including a platen roller and a plurality of support rollers angularly spaced thereabout. At least one of the support rollers is an embossing roller cooperative with the platen roller to emboss a web advanced between the facing juxtaposed surfaces of the platen and embossing rollers. The platen roller is floatingly confined by the support rollers and has no rigidly fixed axis of rotation. Such platen roller is also hollow, including a cylindrical wall component defining a gaseous fluid pressurized chamber. The cylindrical wall component of the roller is of resilient construction and is inwardly depressible by the support rollers against the force of the gaseous pressure fluid acting outwardly thereagainst within the pressurized chamber. The web material to be treated is passed through the nips defined by one or more support rollers, including at least one embossment roller, and the platen roller. While passing through and between said nips the web material is continuously supported over substantially the entire surface area along one side thereof without application thereto of tensile stress of a magnitude tending to tear the same. Besides treating the web material to provide an embossed appearance thereto the system otherwise treats it to provide for increased absorbency, softness and apparent bulk.
REFERENCES:
patent: 3129457 (1964-04-01), Carter et al.
patent: 3610137 (1971-10-01), Brafford
patent: 3611919 (1971-10-01), Thomas
patent: 3699621 (1972-10-01), Clarke et al.
patent: 3707749 (1973-01-01), Henley
patent: 3841963 (1974-10-01), Schlunke
Bashore S. Leon
Crown Zellerbach Corporation
Fisher Richard V.
Horton Corwin R.
Lampe Thomas R.
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