Process for softening webs

Details Process for softening webs Process for softening webs

1989-09-08

1990-04-24

Schor, Kenneth M.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Reshaping running or indefinite-length work

264283, 162280, 162281, 156183, B31F 114

Patent

active

049198777

ABSTRACT:
A microcreping process is improved by using a razor sharp retarder blade positioned such that its razor edge is overlapped by either the primary blade or a back-up blade, whichever extends the furthest downstream. Preferably, pressure is applied to the primary blade through one or more back-up blades arranged in a stepwise configuration.

REFERENCES:
patent: 3260778 (1966-07-01), Walton
patent: 3507745 (1970-04-01), Fuerst
patent: 3810280 (1974-05-01), Walton et al.
patent: 4432927 (1984-02-01), van Tilburg et al.

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