Application of highly carboxylate resins in aqueous emulsion for leather coating avoiding the use of isopropyl alcohol

Today, the first stages of the finishing processes of buffed cattle hides or full loose grain – known as impregnation – are largely carried out with acrylic resins and penetrating agents (typically, a mixture of surfactants and solvents). This application aims to strengthen the partially buffed grai...

Full description

Saved in:
Bibliographic Details
Published in:Journal of cleaner production 2016-08, Vol.129, p.23-29
Main Authors: Ollé, Luis, Baquero, Grau, Solé, Mercè, Cuadros, Rosa, Bacardit, Anna
Format: Article
Language:English
Subjects:
Acabat
Acrylic resins
Adoberia
Buffing
Carboxylate resin
Carboxylates
Coating processes
Cuir
Enginyeria tèxtil
Exposure
Finishing
Gomes i resines
Gums and resins
Health
Impregnation
Isopropyl alcohol
Leather
Leather finishing
Resins
Revestiments protectors
Tanning
Teixits i tèxtils
Textile finishing
Àrees temàtiques de la UPC
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Today, the first stages of the finishing processes of buffed cattle hides or full loose grain – known as impregnation – are largely carried out with acrylic resins and penetrating agents (typically, a mixture of surfactants and solvents). This application aims to strengthen the partially buffed grain layer bound to the rest of the dermis. To that end, a composition of emulsified acrylic resins is used, as well as a penetrating agent – usually isopropyl alcohol – and water. The process examined consists in the application of acrylic polymers in an aqueous emulsion that, because of their structure, size, and properties no longer require the use of the isopropyl alcohol contained in the penetrating agents. The use of this alcohol causes adverse effects on the health of workers that are exposed to emanations of isopropanol vapors (irritant to eyes, respiratory tract, and skin) in the work environment. Effects from prolonged exposition and inhalation may lead to headaches, dizziness, drowsiness, nausea and, ultimately, to unconsciousness. By using the new polymers developed in this work, the negative environmental effects of the finishing process can be minimized. At the same time, the use of these highly carboxylate resins avoid the exposure to isopropyl alcohol, which is harmful to the health. In addition, the volatile organic compounds (VOC) are reduced without compromising the appearance, performance and fashion requirements that are expected in the final product. •Development of a new leather impregnation finishing.•The process is free of VOCs.•The system is not classified as hazardous.
ISSN:0959-6526
1879-1786
DOI:10.1016/j.jclepro.2016.04.134