Durable antibacterial finish on cotton fabric by using chitosan‐based polymeric core‐shell particles

Abstract

Cotton fabric with excellent antibacterial durability was obtained when treated with chitosan-containing core-shell particles without any chemical binders. These amphiphilic nanosized particles with antibacterial chitosan shells covalently grafted onto polymer cores were prepared via a surfactant-free emulsion copolymerization in aqueous chitosan. Herein, two core-shell particles, one with poly (n-butyl acrylate) soft core and another with crosslinked poly(N-isopropylamide) hard core, were synthesized and applied to cotton fabric by a conventional pad-dry-cure process. Antimicrobial activity was evaluated quantitatively using a Shake Flask Method in which the reduction of the number of Staphylococcus aureus cells was counted. The results showed that treated fabric had an excellent antibacterial property with bacterial reduction higher than 99%. The antibacterial activity maintained at over 90% reduction level even after 50 times of home laundering. The fabric surface morphology as well as the effect of latex particles with different core flexibilities on fabric hand, air permeability, break tensile strength, and elongation was investigated.

Preparation and characteristics of nanocapsules containing essential oil for textile application

“…[11][12][13] Fragrance encapsulated in small particles (nanometer range) and narrow dispersion are preferred for use in textiles as they can provide a strong adhesive force and interact with the fibre due to their large surface area. [14] Furthermore, the smaller the capsules the greater the covering of the product and the longer the fragrance will last because it takes longer for the capsules to be ruptured by physical pressure. [15] Up to now, predominantly the formation of capsules with a size of 1 μm and larger is described, while there are few instances of the use of nanocapsules.…”

Durable Superomniphobic Surface on Cotton Fabrics via Coating of Silicone Rubber and Fluoropolymers

“…Cotton fabrics are flexible with a bending length of 2.2 cm and flexural rigidity 0.12 mg/cm, and this is due to the loose woven structure as shown in Figure 2b. Padding has ended up with a compact fabric structure for cotton fabrics as suggested by the SEM photos, thus the padded fabrics become inflexible, hard and more stiff [34,35]. As a result, the bending length and flexural rigidity for fluoropolymers padded cotton fabrics (samples C, D and E) are around 2.3 cm and 0.17 mg/cm, respectively.…”

Regenerable Antibacterial Cotton Fabric by Plasma Treatment with Dimethylhydantoin: Antibacterial Activity against S. aureus

“…To achieve safety and health properties, antibacterial cotton fabric is grafted or coated with bactericides (e.g., chitosan, quaternary ammonium salts, chlorine and chloramines, etc.) [7][8][9][10][11], or loaded with heavy metal ions (silver, copper, zinc) [12][13][14][15]. However, it is found that the uptake and durability of these compounds are difficult to manage because they leach from the textiles easily [7].…”