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CPAM Emulsion + Cationic Starch (High-filler White Cardboard, Southeast Asian Paper Mill)

CPAM Emulsion + Cationic Starch (High-filler White Cardboard, Southeast Asian Paper Mill)

2026-01-04
CPAM Emulsion + Cationic Starch
 (High-filler White Cardboard, Southeast Asian Paper Mill)
latest company case about [#aname#]
Mill Overview

A packaging paper mill equipped with a 2000mm paper machine running at a speed of 700m/min. The pulp consists of 50% hardwood pulp and 50% recycled pulp, with GCC filler dosage reaching 30%. The original CPAM + bentonite system suffered from low filler retention and insufficient paper strength.

Binary System Solution
  • Cationic starch: Dosage of 0.8% (based on oven-dry pulp), added into the mixed pulp chest to neutralize surface charges first.
  • CPAM Emulsion: Cationic degree of 50%, molecular weight of 12 million, dosage of 0.06% (based on oven-dry pulp), added 30 seconds after starch dosing.
  • Process Control: Cationic starch → CPAM emulsion in sequence, with pH maintained at 6.5–7.0 to match the high-ash pulp system.
Application Results
  • Filler retention increased by 18%, with the paper ash content stably controlled at 28–30%.
  • Tensile index improved by 10% and burst index by 8%, resolving the strength reduction issue caused by high filler loading.
  • Auxiliary agent cost per ton of paper was reduced by 1 USD, while the paper stiffness was also enhanced.
Latest company case about
Solutions Details
Created with Pixso. Home Created with Pixso. Solutions Created with Pixso.

CPAM Emulsion + Cationic Starch (High-filler White Cardboard, Southeast Asian Paper Mill)

CPAM Emulsion + Cationic Starch (High-filler White Cardboard, Southeast Asian Paper Mill)

CPAM Emulsion + Cationic Starch
 (High-filler White Cardboard, Southeast Asian Paper Mill)
latest company case about [#aname#]
Mill Overview

A packaging paper mill equipped with a 2000mm paper machine running at a speed of 700m/min. The pulp consists of 50% hardwood pulp and 50% recycled pulp, with GCC filler dosage reaching 30%. The original CPAM + bentonite system suffered from low filler retention and insufficient paper strength.

Binary System Solution
  • Cationic starch: Dosage of 0.8% (based on oven-dry pulp), added into the mixed pulp chest to neutralize surface charges first.
  • CPAM Emulsion: Cationic degree of 50%, molecular weight of 12 million, dosage of 0.06% (based on oven-dry pulp), added 30 seconds after starch dosing.
  • Process Control: Cationic starch → CPAM emulsion in sequence, with pH maintained at 6.5–7.0 to match the high-ash pulp system.
Application Results
  • Filler retention increased by 18%, with the paper ash content stably controlled at 28–30%.
  • Tensile index improved by 10% and burst index by 8%, resolving the strength reduction issue caused by high filler loading.
  • Auxiliary agent cost per ton of paper was reduced by 1 USD, while the paper stiffness was also enhanced.