Smart Textile Coatings and Laminates (Woodhead Publishing by William C Smith

By William C Smith

Coatings and laminates let for the creation of clever functionalities for fabric items. they're compatible for a variety of cloth functions and will give a contribution to enhancing product functionality. This pioneering publication is a precious reference and stimulus for constructing and enhancing lined and laminated cloth items. the 1st part of the ebook covers the basics of coatings and laminates. topics variety from coating and laminating processing and creation recommendations to checking out and caliber coverage. the rest of the publication covers types of clever coatings and laminates akin to clever weatherproof coatings, section switch coatings, and nanotechnology dependent coatings.

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14 Curtain coating. 11 Powder coating Powder coating is the one of the methods that used 100% solid coating material. In powder coating, pre-prepared coating powder in the solid form is deposited directly onto the substrate. This is an environmentally friendly process compared with fluid-based coating methods since it does not use solvent, releases very low amounts of VOC, and generates few waste materials or hazardous chemicals. No drying is necessary since no water is used, which may result in energy savings (Waelde, 2001).

1999). Textile substrates are not just rough but porous, so penetration through the structure can occur, governed by the kinetics of wetting. If the coating liquid penetrates into fibrous structures, this results in a larger interface area and also produces mechanical locking. Consequently, interlayer adhesion in coated and laminated fabrics is a combination of mechanical anchoring and interfacial interactions (Yosomiya, 1990; Dartman & Shishoo, 1993), and adhesion is therefore a function of coating material penetrations (Wake, 1973; Yosomiya, 1990; Dartman & Shishoo, 1993).

A hot melt dot coating can be done using screen coating. It is sometimes referred to as hot melt printing. Pre-melted hot melt resin is transferred to the substrate through the screen. This method has advantages over engraved roll coating due to the screen being cheaper, shorter exchange times, ease of controlling the amount of coating applied, and lower friction (Goossens, 2001; Anon, 2002a). Screen coating is also used for electrical applications, such as circuit board printing, because it provides good pattern definition with a properly masked screen and precise coating thickness control (Matthews, 1993; Licari, 2003).

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