The invention relates to a method for biologically and ultrasonically preparing
textile fibers, which effectively solves the problem of
pollution and the problem on how to save energy and water, reduce emission, reduce production cost and increase the
utilization rate of materials. The method includes the following steps: brown-rot fungi,
acinetobacter lwoffii,
pseudomonas fluorescens and
rheinheimera tangshanensis are mixed together and added with water, so that a compound
bacteria liquid is prepared; a material is
cut up, washed with water, steamed to be softened, dehydrated and added with the compound
bacteria liquid for
biodegradation, the material is then bailed out, drained and sterilized by steam under normal pressure, defibering agent is then added to defiber the material into
fiber bundles, the
fiber bundles are ultrasonically processed, so that the
fiber bundles become single fibers, pulp in the form of the single fibers is sent into a pulp
washer, washed, purified, then screened and filtered, so that purified single fibers are obtained, and the purified single fibers are soaked in
warm water, then dried, carded and drawn, so that the fibers are further straightened into
textile fibers. The method disclosed by the invention is advanced, easy to operate, high in production efficiency, energy-saving, environment-friendly, low in cost and easy to popularize and apply.