Stencils from plastics

In recent years, there has been increased interest in stencils produced from plastics such as acetal and polyethylene. The prime benefit in using plastic stencils is the thicknesses that can be used (greater than 1 mm up to 8 mm). By drilling apertures of various sizes, adhesive deposits of different heights ranging from 0.2 to 2 mm were... 

To obtain the desired print pattern from a photo image, parts of the screen must be blocked. For example, the photoimage process is important for screen-printing-type stencil making. A photosensitive plastic emulsion is ap-... 

Figure 62 (a) Bonding a transparent plastic window onto an envelop with typographic stencil, (b) Stencil wheel apphcator working with Hot melt adhesive (RA 80 wheel applicator from Nordson) width upto 800 mm (by courtesy of Nordson). 

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