Leather manufactures – Machines
Reexamination Certificate
2005-11-15
2005-11-15
Welch, Gary L. (Department: 3765)
Leather manufactures
Machines
C069S027000, C069S028000
Reexamination Certificate
active
06964182
ABSTRACT:
A mechanism, giving less environmental load, for treating animal fibers of a continuous web form so as not to spoil inherent properties of the animal fibers such as hand-feeling and water repellency, so as to improve resistance to felting (shrinkage) and pilling. The mechanism includes: a tank filled with a treatment liquid; a net-conveyor having upper and lower mesh belts put one upon the other to sandwich the continuous web form therebetween for conveying the web form through the liquid of the tank; a treating-liquid circulation system including a gas-liquid mixing pump connected to a suction-port in the tank and pumping out the liquid, a static mixer connected downstream of the pump, and a discharge nozzle placed at a position in the tank facing the suction-port with the mesh belts therebetween, the discharge nozzle being connected downstream of the mixer; and an ozonizer for supplying ozone gas into the system.
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“Continuous Shrink-Resist Process of Wool Top Silver With Ozone I Performance”, Tadashi Karakawa et al, published in “Sen'I Gakkaishi” 2002, vol. 58-4, issued on Apr. 10, 2002 (English Abstract and partial translation).
Ichimura Hisashi
Karakawa Tadashi
Oshima Masataka
Sakoda Kazuyoshi
Umehara Ryo
Kurabo Industries Ltd.
Nagoya Oshima Machinery Co., Ltd.
Welch Gary L.
Wenderoth , Lind & Ponack, L.L.P.
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