METHOD FOR DISPERSING OIL-DROPLET TYPE EMULSION IN FEED LIQUID SYSTEM AND COATING METHOD USING THE SAME

Japanese Patent JP3788642

B2

PROBLEM TO BE SOLVED: To further uniformize the particle size of oil droplets without adversely affecting the oil droplets by passing a dispersion medium which contains an oil-droplet type emulsion having specified particle size, at a specified flow rate through a filter provided with plural pores having pore size sufficient to pass the emulsion through the pores or larger.
SOLUTION: In this method, a filter section 8 consists of two housing members 10 and 11 sealed with sealers 12 and connecting parts 14 for connecting the filter section 8 to a flow passage. A filter medium 9 is placed in the space between the housing members 10 and 11 so that the filter medium 9 is inserted between two ring members 13. A coating liquid contg. coarse oil droplets is supplied to the inside of the filter section 8 from a flow passage of the coating liquid and passed through the filter medium 9. At this time, the coating liquid, i.e., the dispersion medium contg. oil droplets is passed through the filter medium 9 at a 5 to 700cc/(cm2.min) flow velocity to further disperse the oil droplets in the dispersion medium and to reduce the particle size of coarse particles of the oil-droplet type emulsion to that below a prescribed value. Thus, the oil droplet particle size of the emulsion can further be uniformized at a low cost and without adversely affecting the required droplets.

Iskanda Gandasa Sumita
Mori Fuyuhiko
Kazuya Sano
Yeah Way Engelen

JP26464796A

June 21, 2006

October 04, 1996

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Fuji Photo Film Co., Ltd.

B01F3/08; B01F5/06; B01J13/00; G03C1/005; G03C1/74; G03C7/388; (IPC1-7): B01F3/08; B01F5/06; B01J13/00; G03C1/74; G03C7/388

JP60054726A
JP7100347A
JP7047253A

Hagino Taira
Kiyotaka Sasaki
Toshio Fukasawa
Zenichi Soeda

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