Method for preparing regenerated cellulose fibers having anti-bacteria, anti-mite and anti-mould functions and the use thereof

  • US 10,563,322 B2
  • Filed: 01/04/2018
  • Issued: 02/18/2020
  • Est. Priority Date: 12/29/2017
  • Status: Active Grant
First Claim
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1. A method for preparing a regenerated cellulose fiber having anti-bacterial, anti-mite and anti-mould functions, comprising the steps of:

  • (1) preparing a composite slurry;

    (2) blending the composite slurry and a denatured cellulose spinning dope to prepare a blended spinning dope; and

    (3) spinning the blended spinning dope and performing a post-treatment, thereby producing the regenerated cellulose fiber,wherein the composite slurry is prepared by a process comprising;

    i) blending a Fructus Foeniculi extract and a Litsea cubeba extract to obtain a blended powder;

    ii) mixing the blended powder obtained in step i) with a Thymus mongolicus Ronn essential oil to prepare an oily blended powder slurry and further emulsifying the oily blended power slurry to obtain an emulsion; and

    iii) reacting the emulsion obtained in step ii) with a urea-formaldehyde resin prepolymer to obtain the composite slurry.

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