Title:
紙及び板紙の製造
Document Type and Number:
Japanese Patent JP2004530808
Kind Code:
A
Abstract:
Process for making paper or paper board comprising, forming an aqueous cellulosic suspension, adding a retention system to the cellulosic suspension, draining the suspension on a screen to form a sheet and drying the sheet, wherein the retention system comprises a swelling clay which has a TAPPI brightness of at least 70.
Inventors:
Chen, Gordon Chen
Williams, Stephanie Kane
Williams, Stephanie Kane
Application Number:
JP2003507355A
Publication Date:
October 07, 2004
Filing Date:
June 18, 2002
Export Citation:
Assignee:
Ciba Specialty Chemicals Water Treatments Limited
International Classes:
D21H17/00; D21H17/67; D21H17/68; D21F11/00; D21H21/10; (IPC1-7): D21H21/10; D21H17/67
Attorney, Agent or Firm:
Hajime Tsukuni
Fumio Shinoda
Koshiro Tsukuda
Fumio Shinoda
Koshiro Tsukuda