Nippon Paper Industries Co., Ltd.

Kabushiki Kaisha Toshiba

Isao Onodera

Keigo Watanabe

Toshio Shimizu

Takahiro Imai

Shisei Goto

Takeshi Iimori

Hiroki Sekiya

Hisayuki Hirai

Tamon Ozaki

Takanori Miyanishi

Yasuyuki Kamijo

Susumu Kojima

Yohji Tuji

A papermaking raw material processor capable of reforming pulp in papermaking a process using cavitation includes a first pumpjets jet liquid and second pumpjets suspension containing; e.g., pulp fibers into a processing unit inside which cavitation is generated by generation of a jet stream. Inside processing unit, a jet stream generates cavitation to carry out a reforming processing in which ink, or the like, is removed from the fibers by a blast resulting from collapse of cavitation bubbles generated there. The liquid after reforming processing is returned to second tank, except for a part of it fed to downstream steps, while the suspension is processed, as circulated between processing unitand second tank

Apparatus for treating papermaking feedstock

Wood chips having low bleachability are impregnated with a chemical liquor at a pH range of 7-12 in aqueous solution and the chemical liquor from the impregnated chips is drained, whereby extractives contained in the chips and consuming bleaching agents can be removed to improve the effect of bleaching agents in a subsequent bleaching step. Bleached mechanical pulp is prepared by defibration by primary refining&#x2014;bleaching&#x2014;beating by secondary refining wherein pulp fibers are washed after defibrating wood chips having low bleachability and before bleaching the pulp fibers, whereby the amount of bleaching agents used can be reduced and bleached mechanical pulp having a Hunter brightness of 45-65% after secondary refining can be obtained.

Process for impregnating, refining, and bleaching wood chips having low bleachability to prepare mechanical pulps having high brightness

An enameled wire capable of improving withstand lifetime with respect to the application of surge voltage of an inverter and thermal degradation thereof while restricting an amount of an inorganic filler material is provided. The enameled wire includes an electrically conductive wire () and a coating () formed of a high molecular compound uniformly mixed with an inorganic filler material in the form of fine flat particles provided around the electrically conductive wire (). The enameled wire may include an electrically conductive wire (), a coating () formed of a polyester imide resin solution mixed with an inorganic filler material in the form of fine flat particles and provided on the conductive wire and a coating () formed of polyamide imide and provided on the coating ().

Enameled wire

Growing community of inventors

Tokyo, Japan

Isao Onodera