A simple method of simultaneously endowing paper or fluff pulp with both high softness or appropriate fluffing properties and antimicrobial properties

Abstract

As the living standard improve, disposable sanitary and living paper requires not only softness or easy to uff in a dry state, but also good antibacterial property. In this study, a series of alkyl quaternary ammonium salts (AQAS), a kinds of antibacterial-debonding agents, were synthesized by using a twostep process. The SN2 nucleophilic substitution reaction was designed between triethanolamine and sulfoxide chloride, and followed subsequent quaternization by tertiaryamines with different long alkyl chains. The obtained products can be used as an antibacterial and softening/debonding agent for improving the performance of paper or uff pulp. The results showed that these new compounds can endow antibacterial function and high softness to paper or control appropriate burst strength to uff pulp board. These AQAS products can be not only used in daily disposable sanitary products, but also have potential applications in other products such as glass spacer paper, advanced household paper, or antibacterial tissue products to prevent microbial contamination.

Advances in the Synthesis of Biologically Active Quaternary Ammonium Compounds

“…Inhibition zone experiments indicated that the obtained materials exhibit antibacterial properties against S. aureus and E. coli. Therefore, the authors suggest that these materials could have potential applications in antibacterial tissues or daily disposable sanitary products to prevent microbial contamination [124]. Xu and coworkers proposed compounds that were applied as antibacterial softening agents for paper processing.…”

Endowment of Excellent Water Redispersibility for Cellulose Nanocrystals Using the Strategy of Chemical Shielding and Dispersion with Debonding Agent

“…Debonding agents (DAs) are reagents which are typically applied to weaken the bonding force of bers and are usually used in the preparation of uff pulp, they can be categorized as cationic and nonionic (Xu et al 2021). Among them, cationic debonding agents (c-DAs) are composed of cationic groups (=N + =, -S + -, =P + , etc.)…”

“…and hydrophobic groups. Xu et al (Xu et al 2021) synthesized a series of alkyl quaternary ammonium salts (AQAS) antibacterial-bonding agents by a two-step method. The obtained products can endow antibacterial properties and high softness to paper and control the appropriate burst strength, making it suitable for improving the properties of uff pulp.…”