Process and apparatus for continuously shrinking a non-woven she

Details Process and apparatus for continuously shrinking a non-woven she Process and apparatus for continuously shrinking a non-woven she

1974-04-16

1977-09-27

Bashore, S. Leon

Paper making and fiber liberation

Processes and products

26 185, 68175, 68202, 162157R, 162202, 162207, 162289, D21D 300

Patent

active

040509826

ABSTRACT:
The invention relates to a process and an apparatus for continuously shrinking a fibrous sheet containing heat-shrinkable fibers by means of a hot liquid wherein a sheet is driven by a continuous, stable film formed on the emerged surface of a series of aligned cylinders with parallel axes rotated in the direction of the advance of the sheet and partially immersed in a hot liquid without the sheet being in contact with the cylinders. The invention makes it possible to shrink uniformly and at a high speed heat-shrinkable fibers obtained from an aqueous dispersion thereof by a paper-making method.

REFERENCES:
patent: 1686388 (1928-10-01), Lorenz
patent: 2128516 (1938-08-01), Graham
patent: 2866254 (1958-12-01), Ball
patent: 3032465 (1962-05-01), Selke et al.
patent: 3086275 (1963-04-01), Pritchard
patent: 3253317 (1966-05-01), Such
patent: 3826178 (1974-07-01), Taylow

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