Lotus leaf extract functionalized lyocell fiber, and preparation method and application thereof

By combining lotus leaf extract/porous starch composite microcapsules with enzyme-modified cellulose pulp through a dry-jet wet spinning process, the problem of easy degradation and loss of lotus leaf extract in lyocell fiber is solved, achieving stable encapsulation and sustained release of active ingredients, and improving the anti-inflammatory and repairing effects of the mask base fabric.

CN122279776APending Publication Date: 2026-06-26EAST CHINA UNIV OF SCI & TECH +1
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Patent Information

Application Number
CN202610756066.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-29
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing mask base fabrics have limited functionality. The active ingredients of lotus leaf extract are easily degraded during high-temperature spinning processes, making it difficult to disperse evenly in NMMO solvent systems. Furthermore, the surface adhesion method leads to easy loss of active ingredients and poor washability.

Method used

Lotus leaf extract-functionalized lyocell fibers were prepared using a dry-jet wet spinning process. By adding lotus leaf extract/porous starch composite microcapsules to N-methylmorpholine-N-oxide solvent, combined with enzyme-modified cellulose pulp and sericin protection, stable encapsulation of active ingredients and low-temperature spinning were achieved.

Benefits of technology

It improves the retention rate of active ingredients in lotus leaf extract, achieves long-lasting sustained release, gives the mask base fabric anti-inflammatory and repairing effects, and enhances the functionality and comfort of the fibers.

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Abstract

This invention discloses a functionalized lyocell fiber based on lotus leaf extract, its preparation method, and its application, belonging to the field of functional regenerated cellulose fiber technology. The method first prepares porous starch microcapsules from lotus leaf extract, then pre-treats cellulose pulp with enzymes, subsequently mixing it with N-methylmorpholine-N-oxide, sericin, and nano-zinc oxide to form a spinning solution. The solution is then spun using a dry-jet wet spinning method, coagulated, washed, and dried to obtain the target fiber, which can be further processed into an anti-inflammatory and repairing mask base fabric. This invention significantly improves the retention rate of active ingredients in lotus leaves through microcapsule encapsulation and low-temperature gentle spinning, achieving long-lasting sustained release. The resulting fiber possesses excellent mechanical properties, skin-friendliness, and anti-inflammatory and soothing effects, making it suitable for high-end mask base fabrics, medical dressings, and intimate textiles.
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