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Method for improving brightness and cleanliness of secondary fibers for paper and paperboard manufacture 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • D21H-017/64
출원번호 US-0375026 (1995-01-19)
발명자 / 주소
  • Srivatsa Narendra R. (Ramsey NJ) Patnaik Sanjay (Westwood NJ) Hart Paul (Georgetown SC) Amidon Thomas E. (Highland Mills NY) Renard Jean J. (Mobile AL)
출원인 / 주소
  • International Paper Company (Purchase NY 02)
인용정보 피인용 횟수 : 25  인용 특허 : 0

초록

A high level of calcium carbonate filler is added to secondary fiber pulp by in situ attachment to the secondary fibers. The secondary fiber pulp is mixed with an alkaline salt such as calcium oxide or calcium hydroxide and contacted with a reaction gas such as carbon dioxide in a gas-liquid contact

대표청구항

A method for adding filler to secondary fibers pulp for manufacture of paper or paperboard products, comprising the steps of: introducing secondary fiber pulp slurry into a gas-liquid contactor apparatus at a location upstream of a contact zone thereof, and also introducing an alkaline salt slurry a

이 특허를 인용한 특허 (25)

  1. Doelle, Klaus; Heise, Oliver U., Apparatus and method for chemically loading fibers in a fiber suspension.
  2. Rheims, J{overscore (o)}rg; Doelle, Klaus; Heise, Oliver; Witek, Werner, Apparatus for loading fibers with calcium carbonate.
  3. Fukuoka, Moe; Nakatani, Toru; Goto, Shisei, Calcium carbonate microparticles and processes for preparing them.
  4. Petri Silenius FI; Markku Leskela FI, Filler for use in paper manufacture and procedure for producing a filler.
  5. Silenius, Petri; Leskela, Markku, Filler for use in paper manufacture and procedure for producing a filler.
  6. Xu, Yufeng; Weinberger, Renee J., Gypsum wallboard with improved nail pull strength and the method for making same.
  7. Mathur Vijay K., High speed manufacturing process for precipitated calcium carbonate employing sequential perssure carbonation.
  8. Withiam Michael C. ; Conley Donald P., Method ABD preparation of pigmented paper fibers and fiber products.
  9. Mathur,Vijay K.; Mathur,Varun K., Method and apparatus for production of precipitated calcium carbonate and silicate compounds in common process equipment.
  10. Henricson,Kaj, Method and apparatus for treating pulp with filler.
  11. Rheims,Joerg; Heise,Oliver; Doelle,Klaus; Sigl,Ronald; Witek,Werner, Method for fiber stock preparation.
  12. Richard F. Palmer ; Mike S. D. Juang ; James S. Johnson ; Barbara R. Atha ; David T. Lee ; Larry L. Malcom, Method for manufacturing paper products comprising polymerized mineral networks.
  13. Markham, Larry Derwood, Method of deinking recycled paper employing centrifigal cleaners.
  14. Koukoulas, Alexander A.; Altman, Thomas E.; Matthew, M. C.; Amidon, Thomas E.; Mora, Fernand, Method to manufacture paper using fiber filler complexes.
  15. Hansen, James K.; Munson, Jr., Richard L.; Balaguer, Jr., Roberto; Leitinger, Jeffrey M.; Barton, Thomas F., Multi-ply paperboard prepared from recycled materials and methods of manufacturing same.
  16. Hansen, James K.; Munson, Jr., Richard L.; Balaguer, Jr., Roberto; Leitinger, Jeffrey M.; Barton, Thomas F., Multi-ply paperboard prepared from recycled materials and methods of manufacturing same.
  17. Rheims,J?rg; Doelle,Klaus; Heise,Oliver; Witek,Werner; Flanigan,Shawn; Matz,Robert J., Process and a fluffer device for treatment of a fiber stock suspension.
  18. Rheims, Jorg; Doelle, Klaus; Heise, Oliver; Witek, Werner, Process for loading fibers with calcium carbonate.
  19. Rheims, J?rg; Doelle, Klaus; Heise, Oliver; Witek, Werner, Process for loading fibers with calcium carbonate in a plurality of reactors.
  20. Rheims, Jorg; Doelle, Klaus; Heise, Oliver; Witek, Werner, Process for loading fibers with calcium carbonate in a plurality of reactors.
  21. Virtanen, Pentti; Saastamoinen, Sakari, Process for manufacturing paper or board.
  22. Richard Christian FR, Process for obtaining fibers integral with calcium carbonate particles.
  23. Lunden, Klaus Akilles; Attrup, Ib; Madsen, Jens Toftelund, Process for regulating the porosity and printing properties of paper by use of colloidal precipitated calcium carbonate, and paper containing such colloidal precipitated calcium carbonate.
  24. Nystrom Tommy,SEX ; Ali Hyder ; Lembke Fritz,DEX, Process for sanitizing post-consumer paper fibers using heat and hydrogen peroxide.
  25. Holik, Herbert, Process for the formation of a multi-ply and/or multilayer fiber web.
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