@Article{JPM.2023.40.1-2.3,
AUTHOR = {SIVARAJ SUDHAHAR, UMAMAHESWARI G, JAYA PRAKASH ALLA, RAGHAVA RAO
JONNALAGADDA, SUGUNA LAKSHMI, SANJEEV GUPTA},
TITLE = {Acrylic Finished Leather Upgraded with Thermoplastic Polyurethane Filament using 3D Printing – A New Generation Hybrid Leather of Synthetic and Natural Polymer},
JOURNAL = {Journal of Polymer Materials},
VOLUME = {40},
YEAR = {2023},
NUMBER = {1-2},
PAGES = {33--45},
URL = {http://www.techscience.com/jpm/v40n1-2/55971},
ISSN = {0976-3449},
ABSTRACT = {Leather manufacturing process involves a lot of waste disposal which pollutes environment,
some of the processes are inevitable. In the present investigation, 3D printing technology was
used to reduce the wastage and to cover defective regions in leather. The present study focuses
on synthesis of acrylic binder using emulsion polymerization technique. These binders were
analysed for solid content for better optimisation of the amount of binder to be utilised for
finishing operation. The experimental binder was prepared with 26% solids. Particle size and
thermogravimetric analyses were carried out to understand the size and shape of the particles
and their thermal resistance. These binders were used for leather finishing and the performance
of leather was studied. Surface morphology changes of leathers were studied using Scanning
Electron Microscopy (SEM). Wet and dry rub fastness, finish film adhesion, light fastness and
organoleptic properties were studied and found to be superior compared with control leathers.
The acrylic finished leather with minor defects was taken for 3D printing and designed using
Thermoplastic Polyurethane (TPU) as filament. The acrylic finished leather shows good adhesion
for TPU and it results in numerous designs in short duration. The new additive was added to
leather using 3D printing technology to produce a tailor-made valuable design without any waste disposal and chemical discharge. This invention may convert the rejected waste leather into
valuable material and lead to the new generation hybrid leather for use.},
DOI = {10.32381/JPM.2023.40.1-2.3}
}