Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting
Patent
1995-03-22
1997-02-11
Woo, Jay H.
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
28267, 25055912, 25055941, 356430, 264143, 264151, 264168, 264203, 425169, 425296, D01D 1302, D02G 112
Patent
active
056017650
ABSTRACT:
Crimped fibres of solvent-spun cellulose are made and checked for damage in a method in which:
i) cellulose is dissolved in an amine oxide solvent to form a hot cellulose solution,
ii) the hot cellulose solution is extruded through a die assembly to form a tow of continuous filaments,
iii) the tow is passed through a water bath to leach out the amine oxide
iv) the tow is crimped by passing through a stuffer box in which it is compressed to apply crimp,
v) dry steam being injected into the stuffer box during the crimping process, and
vi) the crimped tow leaving the stuffer box is passed through detection means in which
vii) a beam is projected across the path of travel of the tow and is received by receiving means on the opposite side of the tow, the receiving means being calibrated to initiate a signal if obscurement of the beam by the tow varies beyond a predetermined amount.
REFERENCES:
patent: 2346258 (1944-04-01), Hooper
patent: 2968857 (1961-01-01), Swerdloff et al.
patent: 3044345 (1962-07-01), Schottler
patent: 3128147 (1964-04-01), Kenyon et al.
patent: 3174046 (1965-03-01), Lindemann et al.
patent: 3447213 (1969-06-01), Sieme Dost et al.
patent: 3618168 (1971-11-01), Mukai et al.
patent: 3767360 (1973-10-01), Singh
patent: 3911539 (1975-10-01), Hughes et al.
patent: 4145391 (1979-03-01), Rodier
patent: 4367191 (1983-01-01), Cuculo et al.
patent: 4416698 (1983-11-01), McCorsley, III
patent: 4634280 (1987-01-01), Paulson, Jr.
patent: 4692799 (1987-09-01), Saitoh et al.
patent: 4739176 (1988-04-01), Allen et al.
patent: 5130559 (1992-07-01), Leifeld et al.
"Warping Yarn Inspector," of Meiners-del Control, published in Mar. 1988.
"Technical Manual" of Meiners-Del, pp. 11-12.
"Dethroning King Cotton" by Daniel Green, published in Financial Times, Jan. 5, 1993.
Bluckert Neville P.
Letts Penny E.
Payne Ronald D.
Sellars Alan
Courtaulds Fibres (Holdings) Limited
Leyson Joseph
Woo Jay H.
LandOfFree
Method for manufacturing crimped solvent-spun cellulose fibre of does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for manufacturing crimped solvent-spun cellulose fibre of, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for manufacturing crimped solvent-spun cellulose fibre of will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-339381