Environment-friendly flushable high-wet-strength antibacterial toilet paper pulp composition and preparation method thereof

By using surface charge regulation and polyelectrolyte self-assembly technology, a cross-linked network is constructed by mixing pulp fibers and specific polymer materials, which solves the technical contradiction between wet strength, flushability, and antibacterial properties of wet toilet paper, and realizes an environmentally friendly wet toilet paper product with high wet strength, rapid flushability, and long-lasting antibacterial properties.

CN122406579APending Publication Date: 2026-07-17BAZHOU YOULIYA ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BAZHOU YOULIYA ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2026-06-02
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing wet toilet paper products struggle to balance wet strength and flushability, and traditional antibacterial agents pose environmental and health risks, making it difficult to achieve both environmentally friendly and biodegradable properties as well as long-lasting antibacterial effects.

Method used

By mixing softwood pulp, hardwood pulp and viscose fiber, and adding sodium carboxymethyl cellulose, cationic modified maleicylated hydroxypropyltrimethylammonium chloride chitosan quaternary ammonium salt and guanidine butylamine modified poly(acrylamide-acryloyloxyethyltrimethylammonium chloride-acrylic acid) copolymer, a physical cross-linking network with surface charge regulation and polyelectrolyte layer-by-layer self-assembly is constructed, giving wet toilet paper high wet strength and long-lasting antibacterial properties.

Benefits of technology

It achieves high wet strength and rapid flushing properties in a wet state, while providing a long-lasting antibacterial effect, avoiding the leaching of chemical additives and environmental pollution, and meeting environmental protection requirements.

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Abstract

The application discloses an environment-friendly flushable high-wet-strength bacteriostatic toilet paper pulp composition and a preparation method thereof in the technical field of papermaking chemicals. The composition is composed of coniferous wood pulp, broadleaf wood pulp, viscose fiber, sodium carboxymethyl cellulose, cationic modified maleated hydroxypropyl trimethyl ammonium chloride chitosan quaternary ammonium salt and guanidyl butylamine modified poly(acrylamide-acryloyloxyethyl trimethyl ammonium chloride-acrylic acid) copolymer. In the preparation, the wood pulp and the viscose fiber are first defibrated and dispersed, the sodium carboxymethyl cellulose is added, deionized water is added for dilution to a low concentration state, and then the cationic modified maleated hydroxypropyl trimethyl ammonium chloride chitosan quaternary ammonium salt and the guanidyl butylamine modified poly(acrylamide-acryloyloxyethyl trimethyl ammonium chloride-acrylic acid) copolymer are added in sequence and stirred to form a polyelectrolyte complex network. The composition has the advantages of good flushability, high wet strength, long-lasting bacteriostasis and environmental protection and biodegradation.
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