increased, formaldehyde emission also increased. The
reduction ratio of form aldehydeemission was much
higher than the reduction ratio of bonding strength,
when 30% of PVAc was added. It is possible to reduce
formaldehyde emission with just small decreasing
bonding strength by adding just 30% of PVAc.
When we blended MF resin and PVAc together,
wheat flour was used as material to increase the quantity
and viscosity