Fixing
Fixing Agent
Improved fixation and retention of sizing chemistry in papermaking.
Overview
Fixing Agent is a cationic polyelectrolyte solution designed to improve adsorption and retention of paper-making additives on pulp fibers. It can support retention of AKD, ASA and rosin sizing agents, helping improve sizing efficiency and reduce sizing-related deposits. Cationic polyelectrolytes used for this purpose, such as polyDADMAC, carry a permanent positive charge independent of pH, which lets them bind the dissolved and colloidal anionic material (often called anionic trash) that would otherwise consume the capacity of a mill's more expensive retention and sizing chemicals.
Applications
Where it is used
- Paper wet-end systems
- AKD sizing systems
- ASA sizing systems
- Rosin sizing systems
- Paper and board manufacturing
Benefits
Why mills choose it
Improved retention of sizing agents
Can support lower sizing-agent consumption
Improved sizing efficiency
Helps reduce deposits associated with sizing chemistry
Strong cationic interaction with pulp fibers
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