PROCESS FOR TREATING AND SIZING PAPER SUBSTRATES

摘要

2130922 9318228 PCTABS00025 Process for strengthening and sizing paper with isocyanate characterized in that the isocyanate does not contain water and the isocyanate is applied to the paper by means of a linear electrostatic spraying device. The process is an efficient way to apply water-free isocyanate to paper at low percentage levels in an environmentally safe manner.