FIELD: light-sensitive materials. SUBSTANCE: invention relates to radiographic materials for recording x-ray radiation and crack detection. Material consists of support, gelatin sublayer, light-sensitive layer, and protective gelatin layer consecutively applied on both sides of support. Light-sensitive layer contains 3 stabilizers: sulfur-containing compound of formula I: (I), wherein R denotes hydrogen or alkyl and X alkali metal or residue
; mercaptotetrazole derivative of formula II:
(II), wherein R' denotes hydrogen, amino, methoxycarbonylamino group; and compound of formula III:
(III), wherein R2 and R3 are hydrogen or group SO3M (M is alkali metal); flooding additive; polymer latex; butyl acrylate/styrene/methacrylic acid terpolymer depicted by general formula IV:
(IV), wherein n : m : q = 7 : 0.5 : 0.5, or methacrylic acid/ethyl acetate copolymer with general formula V:
(V), in which x : y = 70 : 30. Light-sensitive layer is made from silver iodobromide emulsion with average size of silver bromide microcrystals 1.0-2.0 mcm and AgI content 3-8 mol %. Protective gelatin layer contains silicon gel, polymethylmethacrylate and/or polymer latex. EFFECT: facilitated manufacture technology, increased stability, reduced degree of latent image regression, improved physico-mechanical characteristics, and improved antistatic protection. 1 tbl, 16 ex
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Authors
Dates
2002-12-20—Published
2001-07-02—Filed