The invention discloses a preparation method of raw bamboo fibers for superfine
spinning, and belongs to the technical field of bamboo fibers.The method comprises the following steps of bamboo
chip pretreatment,
steam explosion,
enzyme treatment,
ultrasonic dispersion-
carding refining, strengthening treatment and damp and hot setting. The strengthening treatment method comprises the following steps: immersing
enzyme-treated bamboo fibers into a
sericin aqueous solution, carrying out vacuum impregnation for 40-50 minutes, taking out the
enzyme-treated bamboo fibers, controlling water until discontinuous dripping is realized, then immersing the enzyme-treated bamboo fibers into a CaCl2 solution, oscillating for 10-15 minutes, taking out the enzyme-treated bamboo fibers, controlling water until discontinuous dripping is realized, immersing the enzyme-treated bamboo fibers into a NaHCO3 solution, oscillating for 20-30 minutes, taking out the enzyme-treated bamboo fibers, washing the enzyme-treated bamboo fibers with water for 2-3 times, dehydrating until the
water content is 30-35%, and
drying the enzyme-treated bamboo fibers. Reinforced bamboo fibers are obtained; according to the method, the
fineness of the natural bamboo fibers is reduced, meanwhile, it is guaranteed that the strength performance is not reduced, the average length of the fibers is increased, and meanwhile the natural bamboo fibers have certain
toughness and size stability and high
wet strength retention rate.