Method and apparatus for producing sized paper of board

Paper making and fiber liberation – Processes and products – With coating after drying

Reexamination Certificate

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Details

C162S158000, C162S184000, C162S205000, C162S265000, C427S428010, C427S421100, C118S076000, C118S300000, C118S322000

Reexamination Certificate

active

07045036

ABSTRACT:
A method and assembly is disclosed for manufacturing a sized web of paper or paperboard, the method comprising the steps of first forming the web at a headbox (1) from a stock comprising at least water and fiber, then pressing the web for water drainage, and finally drying the web by heating. Size furnish is added to the web so that at least a portion of the overall amount of size is added to the web prior to initiating the drying of the web by heating, and at least a portion of the overall amount of size is applied to the web after initiating the drying of the web.

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