Abstract: A method is disclosed of making a polymerizable printing ink which comprises mixing a powdered polymer with a liquid composition comprising at least one polymerizable monomer or oligomer, said oligomer or monomer being polymerizable and the powdered polymer being soluble in said liquid composition at elevated temperature.

Abstract: A decalcamania or dry transfer is disclosed in which a design indicium is supported on a flexible carrier sheet and a pressure sensitive adhesive is applied to the indicium and to the surrounding surface of the carrier sheet. The adhesive is distributed over the indicium and also on the carrier sheet, at least in the vicinity of the perimeter of the indicium in a pattern of discrete dots. By applying the adhesive as a pattern of dots, the adhesive shears cleanly around the perimeter of the indicium when the indicium is transferred from the carrier sheet to a receptor surface.

Abstract: A decalcamania or pressure-sensitive dry transfer is described in which at least one design indicium is supported on a temporary carrier sheet from which it is releasable by manipulation of the carrier sheet. The indicium carries a pressure-sensitive adhesive coating, the tack level of which is substantially reduced by the application of a tack-reducing substance so that the multiple sheets of the transfer material can be stacked without blocking. The adhesive can be re-activated prior to use by treatment with a solvent for the tack-reducing substance, such solvent being a non-solvent or poor solvent for the adhesive.

Abstract: A decalcamania or pressure-sensitive dry transfer is described in which a transferable design or indicium is supported on a heat-resistant flexible carrier sheet. The design is formed, at least in part, from a heat-fused plastisol ink and has a pressure-sensitive adhesive coating covering the design and extending onto the carrier sheet. An intrinsically low tack adhesive is employed which is susceptible to plasticiser migration from the plastisol, so that the adhesive tack level is increased only in the part of the adhesive which is in contact with the plastisol. In an alternative embodiment, the adhesive coating is applied first to the carrier sheet and the design printed onto the adhesive coating, the design being releasable by manipulation of the carrier sheet.