Paper Machine Chemicals

  Spray Starches


  • Spray starches are used to impart z-directional strength to the paper.
  • It helps in reducing the delamination of the plys of the board.
  • These are applied on the paper machine wire through the spray bars while the web is formed.
  • Used for improving the Ply bond of the board.
  • In special cases it is used for improving the Z-directional strength or to reduce the de lamination tendency between plys.
  • The gel temperature is a very important factor for the performance of the starch.
  • The stability and the settling rate are the other factors decides the trouble free operation in using this starch.
  • By using this starch the spring-back tendency of the board improves.This is a important parameter requirement in Cigarette board.