摘要:
Provided is an article that comprises a substrate comprising an acid-etchable layer, a water-soluble polymer matrix, and a photoacid generator. Also provided is a method for patterning that can provide patterned layers that can be used to form electroactive devices.
摘要:
An aluminum alloy plate for lithographic printing that is capable of obtaining a lithographic printing plate support which is free from appearance defects and has a uniform surface after electrolytic graining treatment and of obtaining a lithographic printing plate having a long press life and an excellent scumming resistance is provided. The aluminum alloy plate for a lithographic printing plate is obtained by continuous casting in which an aluminum alloy melt is fed through a melt feed nozzle between a pair of cooling rollers and rolled as it is being solidified by the pair of cooling rollers, wherein the aluminum alloy plate contains 0.10 to 0.20 wt % of silicon and 0.10 to 0.40 wt % of iron, and wherein the aluminum alloy plate contains in solid solution 200 to 600 ppm of silicon and not more than 250 ppm of iron.
摘要:
The present invention provides an imageable element including a lithographic substrate and an imageable layer disposed on the substrate. The imageable layer includes a radically polymerizable component, an initiator system capable of generating radicals sufficient to initiate a polymerization reaction upon exposure to imaging radiation, and a polymeric binder having a hydrophobic backbone and including both constitutional units having a pendant cyano group attached directly to the hydrophobic backbone, and constitutional units having a pendant group including a hydrophilic poly(alkylene oxide) segment. When the imageable element is imaged and developed, the resulting printing plate may exhibit improved on-press solvent resistance and longer press life.
摘要:
A positive working photosensitive lithographic printing plate comprising an aluminum substrate and a positive working photosensitive layer, the aluminum substrate having been anodized and rendered water-wettable, wherein an intermediate layer containing a polymer comprising (A) a unit interacting with an alumina layer and (B) a unit interacting with a water-wettable layer is provided between the aluminum substrate and the photosensitive layer. The photosensitive layer and the water-wettable aluminum substrate have good adhesion so that the printing plate has a satisfactory press life.
摘要:
When laser light is transmitted by or is reflected by a diffuser onto an object being illuminated, the object is not evenly illuminated, but is speckled with large speckles. The invention uses a moving diffuser which reduces the sizes of the speckles when the object is visually observed, and eliminates the speckles when a photographic film or plate is located at the object position and records the laser light.
摘要:
A photosensitive composition which comprises a resin (A) having urea bonds in its side chains and a photosensitive compound (B), wherein the resin (A) contains at least one resin selected from the group consisting of a vinyl polymer resin and a condensation polymer resin, provides a coating layer with excellent resistance to solvents and abrasion. The photosensitive composition is suitable for use in the production of planographic printing plates, integrated circuits (IC) or photomasks. A photosensitive planographic printing plate produced usig the photosensitive composition has superior press-life.
摘要:
An image-bearing element comprising of a white, translucent, metallized film article wherein the film article comprises a flexible, heat resistant, polymeric film material with opposite sides. The film material has deposited on a first side a metal coating which both reflects and transmits visible light and capable of transmitting from about 1% to about 70% of incident visible light cast thereon. The second side of the film material has a white outermost surface and has a visible light opacity of from about 0.5 to about 0.98.
摘要:
A radiation-sensitive composition especially adapted to prepare a lithographic printing plate that is sensitive to both ultraviolet and infrared radiation and capable of functioning in either a positive-working or negative-working manner is comprised of (1) a resole resin, (2) a novolac resin, (3) a latent Bronsted acid and (4) an infrared absorber. The solubility of the composition in aqueous alkaline developing solution is both reduced in exposed areas and increased in unexposed areas by the steps of imagewise exposure to activating radiation and heating.
摘要:
A photosensitive composition comprising a sensitizing amount of light-sensitive diazonium compound and a polyurethane resin binder in an amount sufficient to improve physical property of the composition, wherein said polyurethane resin has at least one group selected from a phosphonic acid group, a phosphoric acid group and ester groups thereof in an amount sufficient to improve adhesion to a support. The photosensitive composition of the present invention provides an excellent adhesion to a support, an excellent developability with an aqueous alkali developer, and a high printing durability.
摘要:
A photopolymerizable recording material is diclosed comprising a base material, a photopolymerizable layer and a cover layer which comprises a water-soluble polymer which is substantially impermeable to atmospheric oxygen, and a polymer which binds atmospheric oxygen and is virtually completely soluble in water at 20.degree. C. The material displays reduced sensitivity to atmospheric oxygen, even on prolonged storage and at elevated ambient temperatures and elevated atmospheric humidity.