Processor and process for liquid ammonia treatment of hank yarn

(19)

(11)

EP 1 057 919 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	10.10.2001 Bulletin 2001/41

(43)	Date of publication A2:
	06.12.2000 Bulletin 2000/49

(21)	Application number: 00111714.2

(22)	Date of filing: 31.05.2000

(51)	International Patent Classification (IPC)⁷: D06B 3/08

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
	Designated Extension States:
	AL LT LV MK RO SI

(30)

Priority:

31.05.1999 JP 15257799
31.05.1999 JP 15258399

(71)	Applicants:
	NISSHINBO INDUSTRIES INC. Chuo-ku, Tokyo (JP) SANDO IRON WORKS CO.,Ltd. Wakayama-shi, Wakayama (JP)

(72)	Inventors:
	Yanai, Yuichi, c/o Nisshinbo Industries Inc. Okazaki-shi, Aichi-ken (JP) Okamoto, Kiyoharu, c/o Sando Iron Works, Co., Ltd. Wakayama-shi, Wakayama-ken (JP)

(74)	Representative: Henkel, Feiler, Hänzel
	Möhlstrasse 37 81675 München 81675 München (DE)

(54)	Processor and process for liquid ammonia treatment of hank yarn

(57) It is an object of this invention to provide a liquid ammonia treatment technology for producing hank yarn without a dyeing speck. This invention provides a processor for the liquid ammonia treatment of hank yarn (23) and a method, wherein liquid ammonia is supplied to cellulose fibers, liquid ammonia is removed from the hank yarn (23), the hank yarn (23) is placed under a pressure reduced condition, hot water or steam is supplied to the hank yarn (23), and the hank yarn (23) is placed under the pressure reduced condition again.

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