Fragrant Microcapsules Based On β-Cyclodextrin for Cosmetotextile Application

Abstract

Microencapsulation of neroline inside microcapsules having a polyurethane shell based on β-cyclodextrin (β-CD) and hexane diisocyanate was performed by interfacial polycondensation. The polyol nature of β-CD caused tight crosslinking of microcapsules wall. Microcapsules of neroline were characterized for their chemical composition and structure of the polyurethane shell by FTIR spectroscopy, thermogravimetric analysis, optical and electron microscopy, light scattering and electrophoresis measurements. Core content and encapsulation yield were 15% and 60%, respectively. Spherical microcapsules of mean diameter 29 μm were slightly cationic with an isoelectric point of 6.3. Neroline-loaded microcapsules were fixed on cotton fabric using an impregnation technique. The functionalized fabric showed improved resistance to washing cycles in comparison with previously reported diol-based microcapsules. Such microcapsules display great potential for the long-lasting release of fragrance in the framework of cosmetotextile.

Improving the structural and physical properties of boric acid-doped rigid polyurethane materials

“…The formation of -N¼C¼O is confirmed by the two peaks at 2350 cm À1 and 2278 cm À1 , while the peaks at 1716 cm À1 and 1710 cm À1 suggest the presence of C¼O. 27,28 The peaks at 1598 cm À1 and 1650 cm À1 assign to the NHC¼O aromatic double bond, 26 while 1413 cm À1 to 1406 cm À1 bands respond to the presence of polyol. The peaks at around 1250 cm À1 and 1270 cm À1 are typical for the stretching vibration of esters.…”

“…The formation of -N¼C¼O is confirmed by the two peaks at 2350 cm À1 and 2278 cm À1 , while the peaks at 1716 cm À1 and 1710 cm À1 suggest the presence of C¼O. 27,28 The peaks at 1598 cm À1 and 1650 cm À1 assign to the NHC¼O aromatic double bond, 26 while 1413 cm À1…”

Microencapsulation for Functional Textile Coatings with Emphasis on Biodegradability—A Systematic Review

“…The durability of the microcapsules and the maintenance of the functionality of the textile during its lifetime depend on the resistance of the binder layer to washing, dry and wet cleaning, rubbing and light. It should be emphasised that all washfastness properties in textiles are standardised by the standards ISO 105-C01 [131,139], ISO 105-C10 [141], ISO 105-C06, ISO 6330 or AATCC TM61 [77,89,121,136,145]. The standard ISO 105-C01 is no longer valid anymore and is replaced by ISO 105-C10.…”

Optimisation of fragrance finishing on cotton by grafting of β-cyclodextrin based microcapsules: Application of the experimental design methodology

“…In a previous study, the functionalisation of cotton fabric by fragrant β -cyclodextrin-based microcapsules using an impregnation process was studied using a polyurethane (PU) binder [23]. The adhesion to cotton fabric was quite good.…”