Screen printing stencil composition with improved water resistance

The invention resides in a photosensitive composition for screen printing. Preferably, the composition of the invention comprises a polymer comprising a vinylpyridine monomer or polymer having a pyridinium salt character and a photoreactable constituent. The resulting stencil, once dried, exposed, c...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: VANISEGHEM LAWRENCE C, JOHNSON KYLE K, GYBIN ALEXANDER S, KOMATSU TOSHIFUMI
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The invention resides in a photosensitive composition for screen printing. Preferably, the composition of the invention comprises a polymer comprising a vinylpyridine monomer or polymer having a pyridinium salt character and a photoreactable constituent. The resulting stencil, once dried, exposed, cured, and subjected to alkaline treatment obtains enhanced solvent/water resistance but can be reclaimed using an acidic wash. In use, the stencil provides a screen/stencil assembly or blockout utility of high structural integrity through repeated use and screen printing images of high resolution and quality.