| Abstract:The application of enzyme converted starch to take place of oxidized starch in carbonless base paper production was studied. The optimum enzyme conversion conditions were as follows, the amylase dosage was 500 mL/t starch, reaction time was 15~20 minutes, inactivation temperature was 95℃, inactivation time was 10 minutes. The preparation process conditions of the enzyme converted starch were determined as well. The pilot plant test showed that compared with using oxidized starch, the longitudinal stiffness increased about 30 mN·mm, the surface strength increased about 0.1 m/s, the cost of the paper per ton saved 53.5 yuan when the enzyme converted starch was used as surface sizing agent. |
