FUNCTIIONAL PAPER USED IN HEAT EXCHANGER OF VENTILATOR

摘要

The present invention discloses functional paper for a heat exchanger of a ventilator prepared by putting an inner sheet made of 10 to 40 % of bleached wood chemical pulp having freeness of 200 to 300 mL CSF and 60 to 90 % of bleached wood chemical pulp fine powder having freeness below 100 mL CSF between outer sheets made of mulberry fibers. The functional paper has excellent air resistance, water vapor transmission efficiency and heat transfer efficiency.