Regensburg 2016 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 14: Poster: Polymer Networks and Elastomers, Hydrogels, Soft Robotics

CPP 14.3: Poster

Montag, 7. März 2016, 18:15–21:00, Poster B2

Replacement of organic solvents by using a soil-release polymer network — •Florian Szillat¹, Nacera Infed¹, Stephan Dietzel², Hans-Günter Hloch¹, and Jürgen Bohnen¹ — ¹wfk - Cleaning Technology Institute, D-47807 Krefeld, Deutschland — ²Fogra - Forschungsgesellschaft Druck, D-81673 München

Printing machine housings are contaminated during sheet as well as web offset printing by deposition of aerosols (e.g. inkjet colour, moistening agents). These deposits induce printing errors due to carryover of inkjet colours on to be printed areas. We investigate sacrificial polymer network coatings that allow easy removal of adhesive inkjet colour after soaking with water. Further, this approach has the advantage of replacing organic solvents. To obtain a better understanding of their coating behaviour as well as their functionality during cleaning process surface tension, rheology as well as porosity are studied. Moreover, the polymer network's barrier effect is investigated via diffusion by means of finite difference method and scanning electron microscopy (EDX). The influence of polyetheramine composition with different molecular weight on the networks properties will be discussed and results of the practical use of such soil-release polymer networks will be shown.