Title:
APPARATUS FOR TREATING PAPERMAKING FEEDSTOCK
Document Type and Number:
WIPO Patent Application WO/2007/052760
Kind Code:
A1
Abstract:
[PROBLEMS] To provide an apparatus for treating a papermaking feedstock in which
a pulp can be modified based on a cavitation phenomenon in a papermaking step.
[MEANS FOR SOLVING PROBLEMS] A liquid to be injected and a suspension containing
pulp fibers, etc. are injected respectively through a first pump (5) and a second
pump (6) into a treating unit where a jet flow is generated to cause cavitation
therein. In the treating unit (2), cavitation occurs due to the jet flow, and the
ink and the like are removed from the fibers by the impact of the breakage of cavitation
bubbles generated. Thus, modification is conducted. Part of the treated liquid
which has undergone the modification is fed to a subsequent step and the remainder
thereof is returned to a second tank (4). The suspension is circulated through
the treating unit (2) and the second tank (4) and treated.
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Inventors:
ONODERA ISAO (JP)
WATANABE KEIGO (JP)
GOTO SHISEI (JP)
TUJI YOHJI (JP)
IIMORI TAKESHI (JP)
WATANABE KEIGO (JP)
GOTO SHISEI (JP)
TUJI YOHJI (JP)
IIMORI TAKESHI (JP)
Application Number:
PCT/JP2006/321997
Publication Date:
May 10, 2007
Filing Date:
November 02, 2006
Export Citation:
Assignee:
JUJO PAPER CO LTD (JP)
ONODERA ISAO (JP)
WATANABE KEIGO (JP)
GOTO SHISEI (JP)
TUJI YOHJI (JP)
IIMORI TAKESHI (JP)
ONODERA ISAO (JP)
WATANABE KEIGO (JP)
GOTO SHISEI (JP)
TUJI YOHJI (JP)
IIMORI TAKESHI (JP)
International Classes:
D21C5/02; D21B1/32; D21D99/00
Domestic Patent References:
WO2005012632A1 | 2005-02-10 | |||
WO2006085598A1 | 2006-08-17 | |||
WO2001087471A2 | 2001-11-22 | |||
WO1995028521A1 | 1995-10-26 | |||
WO2005012632A1 | 2005-02-10 |
Foreign References:
JPH03199478A | 1991-08-30 | |||
JP2006257589A | 2006-09-28 | |||
JPH0657670A | 1994-03-01 |
Other References:
See also references of EP 1956135A4
Attorney, Agent or Firm:
MOCHIZUKI, Hideto (Sankyo main BLDG. 7-10, Iidabashi 1-chom, Chiyoda-Ku Tokyo 72, JP)
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