Abstract: A material for making a lithographic printing plate is provided comprising on a glass support a surface capable of being differentiated in ink accepting and ink repellant areas in accordance with an image pattern, characterised in that the glass support has a thickness of not more than 0.5 mm, a failure stress of at least 107 Pa and a Youngs modulus of not more than 1011 Pa.

Abstract: An optical recording material comprising (I) a substrate, (II) a recording layer provided on said substrate, the recording layer consisting of light transmissive portions and light screening portions, and (III) a reflective metallic thin film layer provided on the recording layer; as well as a process therefor. The invention also includes an optical card comprising the optical recording material provided on a card substrate. In the cases of the optical recording material and the optical card, it is possible to readily carry out high density recording, the alternation of written informaton is difficult, and the written information can be read out on a basis of the difference in light reflectivity.

Abstract: An optical recording material comprising (I) a substrate, (II) a recording layer provided on said substrate, the recording layer consisting of light transmissive portions and light screening portions, and (III) a reflective metallic thin film layer provided on the recording layer; as well as a process therefor. The invention also includes an optical card comprising the optical recording material provided on a card substrate. In the cases of the optical recording material and the optical card, it is possible to readily carry out high density recording, the alternation of written information is difficult, and the written information can be read out on a basis of the difference in light reflectivity.

Abstract: A translucent antibacterial soap is made by a process which includes dissolving a normally solid antibacterial material which is resistant to heat and alkali, e.g., 2,4,4'-trichloro-2'-hydroxy diphenyl ether (THDE), in a mixture of components for making such translucent antibacterial soap, which components include soaps of higher fatty acids in liquid form, such as with water in kettle soap, and converting said mixture to transparent soap cakes, preferably by a process which includes partially drying the mixture, working it and extruding it to a bar form, which bar may be cut to length and pressed into the final desired translucent antibacterial soap cakes.Preferably, the antibacterial compound, in powder form, is dissolved in a superfatting agent, such as mixed tallow fatty acids and coconut oil fatty acids and/or lanolin fatty acids, and then admixed at elevated temperature with the soaps of higher fatty acids that are a major constituent of the soap cakes to be made.

Abstract: An optical recording material comprising (I) a substrate, (II) a recording layer provided on said substrate, the recording layer consisting of light transmissive portions and light screening portions, and (III) a reflective metallic thin film layer provided on the recording layer; as well as a process therefor. The invention also includes an optical card comprising the optical recording material provided on a card substrate. In the cases of the optical recording material and the optical card, it is possible to readily carry out high density recording, the alternation of written information is difficult, and the written information can be read out on a basis of the difference in light reflectivity.

Abstract: An image forming material comprises an image forming layer disposed on a support and comprising (a) aqueous composition comprising a hydrophilic binder layer containing metal developing nuclei or their precursor compound, and water and (b) an organic composition comprising an oil-soluble development inhibitor which is a compound having a diazo group or azide group and a water-miscible organic solvent. An image is formed by exposing the image forming layer to patternized light and then contacting it with a developer containing reducible metal ions and a reducing agent thereby to form an image constituted by metal particles grown at the light-exposed parts.

Abstract: A method of making an electrically conducting metal pattern on a superficially non-conducting support which comprises imagewise exposing to light a photosensitive material containing either a diazosulfide or a diazosulfonate, which produces a light reaction product which is capable of forming free silver and mercury metal from water-soluble silver and mercurous compounds. A mixture of water and at least one solvent from the group consisting of chloroform, toluene, ethylacetate, liquid alcohols and ketones is used in the treatment of the exposed photosensitive material to form a latent image.