Strong, flexible dry transfers
AssigneeTrip Industries Holding B.V.
InventorsAlan Lennox Lythgoe, Dick J. van Heijningen
Life of this patent
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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.
Claims12
A decalcamania which comprises a heat-fused plastisol ink supported on a heat resistant carrier sheet and having an adhesive layer on the sheet, the adhesive being in contact with the plastisol ink and the ink containing a plasticiser capable of migrating into the adhesive layer and interacting therewith to form a tacky adhesive layer in those parts of the plastisol ink in contact with the adhesive layer.
A method of manufacturing a dry transfer which comprises forming a design in a plastisol ink onto a heat-resistant flexible carrier sheet, curing the ink by heating and applying a pressure-sensitive adhesive layer over the design, said adhesive having a low intrinsic tack but being capable of interacting with plasticiser migrating from the cured plastisol ink to increase the level of tack in areas where the adhesive layer is in contact with the plastisol ink.
Dependencies are inferred from the claim text.