Abstract: A photosensitive printing element having an overall layer of powder material and a process for making a flexographic printing plate from such an element are disclosed. The photosensitive element includes a support, a photopolymerizable layer, and a layer of powder material on the photopolymerizable layer. The layer of powder material can be opaque or transparent depending upon desired use.

Abstract: The invention is directed to a laminate for the preparation of printed circuits by electroless plating of conductive metal thereon which comprisesa. an electrically insulative substrate bearingb. an adherent layer of crosslinked polymeric adhesive, which is insoluble in photodielectric developing solutions, having partially embedded therein finely divided particles of adsorbent which protrude from the adhesive surface away from the substrate, the protrusive surfaces of which are adsorptive with respect to electroless plating catalysts or reductive precursors thereof, andc. a solid layer of photodielectric adherently overlying the layer of adhesive and adsorbent particles.

Abstract: An improved photosensitive litho element comprises, in order, a support, a non-photosensitive solvent-soluble contiguous layer having an optical density of at least 3.0 in the visible region of the spectrum and a maximum thickness of 0.015 mm, and a solvent-processable photosensitive layer. Dot-etchable contact litho negatives and positives are provided.

Abstract: An improved photosensitive element for producing reverse solvent developed images comprising a cover sheet, a photoadherent layer, and a solvent-soluble, non-tonable contiguous layer for photomechanical applications.

Abstract: An improved photosensitive element comprises a cover sheet, a photoadherent layer, and a tonable contiguous layer receptive to colorant or particulate material for applications such as color proofing. Such elements are capable of producing duplicate images.

Abstract: Process for preparation of multicolor surprint proofs from a composite photoimaged element, e.g., photopolymer element, having, in order, a sheet support, at least two colored photoimaged elements, and a layer of colloidal silica applied thereon, said colloidal silica being coated from a substantially aqueous dispersion wherein the colloidal silica has an average particle diameter of less than 500 nm and wherein at least 75% of the solids of said dispersion are silica, the silica layer being at least 20 mg/dm.sup.2 when dried. The multicolor proofs obtained contain a sharp image free from any three-dimensional effects and have a delustered, matte appearance which simulates printed press sheets.