AKD neutral sizing agent is a white emulsion made of alkyl ketene dimer (AKD for short) and cationic surfactant as raw materials, emulsified by a homogenization process. It is a white emulsion suitable for medium alkaline (pH 7.5) ~8.5) Reactive sizing agent made under paper conditions. It is widely used in the production of various medium-sized paper, photographic base paper, fruit bag paper, packaging paper and cardboard.
AKD emulsion has become the most used paper sizing agent in China.
How to make it?
1.Raw materials:
(1)Alkyl Ketene Dimer(CAS No.:84989-41-3),90.0% purity;
(2)AKD emulsifier:25.0% purity;
(3)Stabilizer:CAS No.:13520-92-8,36.0% purity;
(4)Biocide:CAS No.:26172-55-4/2682-20-4,14.0% purity.
2.Process flow chart for making AKD emulsion:
3.Equipment for making AKD emulsion by glass lined reactor:
1)1# wax melting tank:you can choose the glass lined tank or stainless steel tank,with heating jacket:500L;
2)2# Emulsifying tank:you can choose the glass lined tank or stainless steel tank,it should be equipped with high shearing emulsifying machine(7.5KW/11KW),with heating jacket:500L;
3)3# Storage tank:you can choose the glass lined tank or stainless steel tank,with heating jacket:500L;
4)High pressure homogenizer;
5)plate heat exchanger
6)4# finished product tank:you can choose the glass lined tank or stainless steel tank,with heating jacket:2/3000L;
7)Filter:
8)Cooling system.