Abstract: A process of forming burned patterns and a burning pattern sheet for use in the process are disclosed, the process comprising forming patterns composed of a burning ink on one surface of a tacky member composed of a flexible base material and an adhesive layer or between both the layers, adhering the tacky member to an article through the adhesive layer, and burning the assembly to form a burned pattern product fixed to the surface of the article.

Abstract: A reversible heat-sensitive recording material, a method of recording and erasing information using the recording material, and a magnetic card using the recording material, the recording material comprising a reversible heat-sensitive recording material comprising a heat-sensitive layer containing a resin matrix and an organic low molecular weight material, said organic low molecular weight material containing at least one higher fatty acid having 16 or more carbon atoms and a sulfide represented by the formulaHOOC(CH.sub.2).sub.m --S--(CH.sub.2).sub.n COOH [I]wherein m and n each independently means an integer of 1 to 5, the ratio of the amount of said at least one higher fatty acid to that of said sulfide being from 90:10 to 10:90 by weight.

Abstract: A method of producing a burned pattern by bonding a burning pattern to a substrate through an inorganic powder sheet obtained by shaping an inorganic powder such as glass and a ceramic material into a sheet with a resin binder and burning the bonded body, characterized in that the inorganic powder sheet is bonded to the substrate by heating and/or pressurizing or an adhesive force.

Abstract: A sheet for formation of a burned pattern, which comprises a laminated layer structure comprising a glass powder-containing layer comprising glass powder and a resin binder, an adhesive layer and a combustible substrate layer, the combustible substrate layer being provided on the surface and/or in the interior of the glass powder-containing layer in the laminate layer structure, or the combustible substrate layer being provided on the glass powder-containing layer having a pattern when the glass powder-containing layer is provided with a pattern comprising heat-resistant ink. A burning label is also disclosed, the burning label comprising a sheet for formation of a burned pattern, the sheet being provided with a pattern comprising heat-resistant ink, or a pattern made of pores or irregularities or obtained by punching the sheet.