发明名称 |
Magnetic liquid application method and apparatus |
摘要 |
A method and apparatus for applying a magnetic liquid to a moving web by using an extruder head for ejecting the magnetic liquid onto the web. A by-pass line for returning the liquid to a feed source through a changeover valve is provided immediately upstream to the extruder head. The liquid is supplied to the by-pass line through the valve after the extruder head is filled with the liquid before the first starting of the application or the resumption thereof. The position of the valve is shifted at the time of the first starting of the application or the resumption thereof so as to supply the liquid to the head to perform the application.
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申请公布号 |
US4729858(A) |
申请公布日期 |
1988.03.08 |
申请号 |
US19860899357 |
申请日期 |
1986.08.22 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
CHINO, NAOYOSHI;TANAKA, YASUNORI;FUKUMURA, KENICHI;HIRAKI, YASUHITO |
分类号 |
B05C5/02;B05C11/10;B05D1/26;B05D5/12;B05D7/00;G11B5/848;(IPC1-7):B05D5/12;B29C47/06;B29C47/74;B32B31/30 |
主分类号 |
B05C5/02 |
代理机构 |
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地址 |
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