Invention Application
WO2014174155A1 A METHOD OF PROVIDING FIBER WEB MAKING FURNISH WITH FILLER, AND PAPER OR PAPER BOARD
审中-公开
一种提供纤维网的方法，包括填充物，纸和纸板
- Patent Title: A METHOD OF PROVIDING FIBER WEB MAKING FURNISH WITH FILLER, AND PAPER OR PAPER BOARD
- Patent Title (中): 一种提供纤维网的方法，包括填充物，纸和纸板
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Application No.: PCT/FI2014/050299Application Date: 2014-04-25
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Publication No.: WO2014174155A1Publication Date: 2014-10-30
- Inventor: HEISKANEN, Isto , IMPPOLA, Olavi , MATULA, Jouni , MATULA, Jussi , RÄSÄNEN, Jari , TAHKOLA, Karri , VÄKEVÄINEN, Matti
- Applicant: WETEND TECHNOLOGIES OY , STORA ENSO OYJ
- Applicant Address: Kaartilantie 7 FI-57230 Savonlinna FI
- Assignee: WETEND TECHNOLOGIES OY,STORA ENSO OYJ
- Current Assignee: WETEND TECHNOLOGIES OY,STORA ENSO OYJ
- Current Assignee Address: Kaartilantie 7 FI-57230 Savonlinna FI
- Agency: GENIP OY
- Priority: FI20135433 20130426
- Main IPC: D21H17/30
- IPC: D21H17/30 ; C01F11/02 ; D21H17/67 ; D21H17/70 ; D21H17/00 ; D21H21/10 ; D21H21/18 ; D21H23/04
Abstract:
The present invention relates toa method of producing precipitated calcium carbonate (PCC) where a retention/strength enhancing chemical is added to milk of lime to form a mixture thereof prior to adding the mixture of the retention/strength enhancing chemical and milk of lime to paper making stock in a pipeline leading to a headbox of a paper making machine, whereafter carbon dioxide is introduced to the paper making stock, and the carbonation reaction between milk of lime and carbon dioxide is allowed to proceed in the presence of both fibres and the retention/strength enhancing chemical.
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