Bleaching and dyeing; fluid treatment and chemical modification – Fluid treatment – Manipulation of liquid
Patent
1995-06-07
1996-04-30
Coe, Philip R.
Bleaching and dyeing; fluid treatment and chemical modification
Fluid treatment
Manipulation of liquid
D06F 4308
Patent
active
055112641
ABSTRACT:
The present invention provides a method for deodorizing and refreshing petroleum group solvent used in a dry cleaning apparatus, and a dry cleaning apparatus using such a method, which can maintain the circulating solvent in a fresh condition for a long time, eliminate a bad smell of the solvent, provide highly stable cleaning ability and good cleaning finish, and prevent ignition and explosion of the solvent to ensure safety. In the dry cleaning apparatus, the petroleum group solvent in a solvent storage tank 2 is pumped by a circulating pump 5, is supplied to a cleaning bath 8 through a filter 6 and carbon absorbent 7 and then is returned from the cleaning bath 8to the solvent storage tank 2 through a button trap 3, and an ozone generating device 10 is provided for generating ozone gas and a diffuser 11 for pouring the ozone gas produced by the ozone generating device 10 into the petroleum group solvent as fine bubbles are arranged to be contacted with a bottom surface of the solvent storage tank 2 or the button trap 3.
REFERENCES:
patent: 3291562 (1966-12-01), Anderson
patent: 4277336 (1981-07-01), Henschel, Jr.
Ishii Yoshihiro
Kamiya Ichiro
Kosaka Koichi
Nishioka Yukiko
Shinjo Ryoichi
Coe Philip R.
Ebara Corporation
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