The characterization of microcapsules printed by screen printing and coating technology

Abstract

Depending on the microcapsules functionality, i.e. encapsulated core material, nowadays microcapsules are used in various fields of application, such as in medicine, pharmacy, agriculture, construction industry, chemical industry, food industry, biotechnology, electronics, as well as in printing and textile industry. In order to fulfil their basic purpose, microcapsules have to be transferred onto the target areas of the substrate material without damage, using different deposition techniques, mostly coating and printing techniques. The aim of this research is to firstly investigate the physical characteristics of the two selected fragranced microcapsules, applied by screen printing and coating technique, and secondly to determine how their addition in the selected three varnishes affected the basic characteristics of the prints. Fragranced microcapsules were before printing and coating adequately premixed with the selected varnish. The research revealed that the characteristics of the fragranced microcapsules and the varnishes as well as the used application techniques significantly affected the behaviour of the fragranced microcapsules and their deposition in the printed varnish layer as well as on the characteristics of the prints.

Keywords

• fragranced microcapsules
• screen printing
• coating
• varnish
• foil