Abstract: A method for selective electroless deposition of a metal (Cu, Ni, Au, Ag) onto a polyester substrate, such as poly(ethylene terephthalate) is described. A combination of ultraviolet exposure of wavelengths <220 nm and a pre-treatment step is used to obtain selective electroless deposition. The polyester layer is first irradiated with uv light of wavelengths <220 nm and is then subjected to a pre-plating pre-treatment with a basic solution. After this, the desired metal is deposited by conventional electroless deposition. Substantial deposition will occur only in those areas which were both exposed to the uv light and subjected to the pre-plating treatment.

Abstract: The technology encompassed by the practice of this invention includes apparatus for ink jet printing under the control of electronic circuitry and ink jet printing under the control of an operator, for example, a typewriter. Broadly, the technology presented in accordance with the principles of this invention utilizes an ink eradicator which removes indicia of the ink by chemical reaction. The character of the eradicator fluid is such that another fluid may be utilized either together therewith or separately to neutralize the residue from the chemical reaction so that printing can readily be accomplished in the location where erasure has occurred. Specifically, practice of this invention is contemplated with means that applies the eradicator fluid over the location on a surface where printing has occurred by ink jet droplets as well as over an entire area thereon within which there is ink jet printing for which a change is to be achieved.

Abstract: Four layer resistive ribbon transfer tapes for use in electrothermic printing devices are fabricated. The tapes are comprised of a substrate having a heat transferable ink on one of its surfaces, and on its opposing surface there is disposed a metal layer. Bonded to the metal layer is a resistive layer. This resistive layer is caused to be bonded to the metal layer by a layer of an alkoxysilane compound therebetween.

Abstract: The invention is directed to polymeric materials which undergo deformation upon exposure to actinic radiation. These polymeric materials contain at least one photoionizable group attached to a polymer backbone structure. Typically, photoionizable groups can include N,N-dimethyl-p-phenylenediamine, tetrathiafulvalene, tetraselenafulvalene, ferrocene, tetrathiatetracene and leuco dyes such as leuco methyl violet. Polymer backbone structures which can be used can be chosen from polyacrylics, polyglutamate, polyvinyl amine, polyvinyl alcohol, polystyrene and the like.Films of these materials when exposed to actinic radiation display deformations with dilations of about 35% in each dimension. They are useful for forming relief images for printing, three dimensional photography, photocopy, holographic information storage, information storage and actinometry.

Abstract: A method is described for selectively reinking a resistive ribbon thermal transfer printing ribbon, comprising:(1) positioning a used resistive ribbon thermal transfer printing ribbon in a colloidal dispersion of electrophoretically depositable ink prepared(a) heating a water-insoluble polymeric binder having a melting point in the range of 85.degree. C. to 100.degree. C.

Abstract: The invention is directed to polymeric materials which undergo deformation upon exposure to actinic radiation. These polymeric materials contain at least one photoionizable group attached to a polymer backbone structure. Typically, photoionizable groups can include N,N-dimethyl-p-phenylenediamine, tetrathiafulvalene, tetraselenafulvalene, ferrocene, tetrathiatetracene and leuco dyes such as leuco methyl violet. Polymer backbone structures which can be used can be chosen from polyacrylics, polyglutamate, polyvinyl amine, polyvinyl alcohol, polystyrene and the like.Films of these materials when exposed to actinic radiation display deformations with dilations of about 35% in each dimension. They are useful for forming relief images for printing, three dimensional photography, photocopy, holographic information storage, information storage and actinometry.