Multifunctional Ultra-fine Silky PET Fabrics; Nanofunctionalization via an Ultrasound-assistant Nanocolloidal Preparation

Providing an even nano-finishing via pad-dry process as the simplest finishing method on ultra-fine silky PET fabrics is difficult due to low absorption potential, extremely low friction resulting in pad mangles and the low thickness. This research aims to develop a procedure of continuous nano-functionalization of ultra-fine silky PET fabrics and examines their properties. An as-prepared TiO ₂ nano-colloidal solution was applied to fabrics by means of a continuous pad-dry process. To stabilize the nanostructures on the fabric surfaces, the samples were subjected to a simple and fast aftertreatment. The effects of this treatment were assessed on washing stability, water repellency (contact angle and droplet absorption time), handle (bending length), wrinkle resistance, UV protection properties and wear properties. An even nano finish on the ultra-fine silky PET fabric was confirmed by SEM micrographs with different magnifications. Results indicate an enhancement of water droplet absorption time as well as the contact angle of droplets on the treated samples which corroborates increased hydrophobicity. Additionally, the treatment enhanced softness, wrinkle resistance and particularly washing fastness of the nanofunctionalized fabrics. The results demonstrate that the functionalization improves the wear properties and the UV stability of the treated fabrics.