Paper Technology

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  • Optical Brightening Agent in paper making
    Contents: Summary: Ways to Increase Whiteness WET END: Addition Points FWA & Colorants WET END: Factors influencing the FWA performance SIZE PRESS: Factors influencing the FWA performance COATING: Factors influencing the FWA performance Light Stability of White Paper
  • Retention and Drainage Aid
    Retention / Drainage Aids & Wet End Chemistry What is retention aid •It is a water soluble polymeric substance that when added to the thin stock it promotes and maximizes the retention of the furnish on the sheet. •It minimize losses of the furnish in the backwater and promotes
  • Coagulation & Flocculation
    Coagulation: Promoting the natural aggregation of fine particles during inter-particle collisions by enhancing naturally occurring, short range attractive forces between particles. Typically coagulation aggregates particles in the 0.1 – 1 μm range to 1 – 10 μm. The aggregates formed are dens
  • Optical Brightening Agents in Paper Making
    Optical brighteners, optical brightening agents (OBAs), fluorescent brightening agents (FBAs) or fluorescent whitening agents (FWAs) are dyes that absorb light in the ultraviolet and violet region (usually 340-370 nm) of the electromagnetic spectrum, and re-emit light in the blue region (typically 4
  • Retention Aid in Paper Making
    A retention agent is a process chemical that improves the retention of a functional chemical in a substrate. The result is that totally less chemicals are used to get the same effect of the functional chemical and less chemicals goes to waste.

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