Photolithographic receptor base

Details Photolithographic receptor base Photolithographic receptor base

G - Physics

03

F

96/27

G03F 7/07 (2006.01)

Patent

CA 1060695

ABSTRACT A photolithographic receptor base for silver salt diffusion transfer imaging comprising a substrate with a layer of hydrophilic colloidal silica containing silver precipitating nuclei thereon, the silica layer being formed from a mixture of two colloidal silica solutions of substantially uniform particle size, one having a particle size of about 2.5 times that of the other. The photolithographic base of the present invention has a longer useful life than those Known in the prior art. This is believed to be the result of forming the base from two colloidal silicas rather than the single colloidal silica of the prior art.

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