Title:
紙及び板紙の製造
Document Type and Number:
Japanese Patent JP3713018
Kind Code:
B2
Abstract:
According to the present invention a process is provided for making paper or paper board comprising forming a cellulosic suspension, flocculating the suspension, draining the suspension on a screen to form a sheet and then drying the sheet, characterised in that the suspension is flocculated using a flocculation system comprising a siliceous material and organic microparticies which have an unswollen particle diameter of less than 750 nanometers.
Inventors:
Chen, Gordon Chen First
Richardson, Gary Peter
Richardson, Gary Peter
Application Number:
JP2002536137A
Publication Date:
November 02, 2005
Filing Date:
October 04, 2001
Export Citation:
Assignee:
Ciba Specialty Chemicals Water Treatments Limited
International Classes:
D21H17/68; D21H21/10; D21H21/54; D21F11/00; D21H23/14; D21H17/13; D21H21/52; D21H23/76; (IPC1-7): D21H21/10; D21H17/68; D21H21/54; D21H23/14
Domestic Patent References:
| JP4241197A | ||||
| JP2002509587A | ||||
| JP2003514140A | ||||
| JP2003514142A | ||||
| JP3689042B2 |
Foreign References:
| WO2000017450A1 |
Attorney, Agent or Firm:
Hajime Tsukuni
Fumio Shinoda
Koshiro Tsukuda
Fumio Shinoda
Koshiro Tsukuda