| 摘要 |
<p>Heat-treated-in-air high lignin content cellulosic fibers which are free of moieties from crosslinking agents, for use in absorbent structures, are prepared by fluffing high lignin content fibers at a consistency of at least 40 %, and heating in air at atmospheric pressure at a temperature ranging from 120 °C to 280 °C fluffed fiber water admixture having a consistency of at least 60 % of moisture-free fluffed fibers, to remove any moisture content and heat treat the resulting moisture-free high lignin content fibers for at least 5 seconds, or by heating a sheet of dry (0-40 % moisture content) high lignin content fibers utilizing these same heating conditions and then fluffing.</p> |
