Abstract: A double-surface printing apparatus, which is small-sized and has a simple construction to make it impossible to take out a sheet, of which one surface has been subjected to printing, from outside. The apparatus includes a paper discharge tray, to which sheets having been subjected to printing are discharged; a sheet reversing mechanism including a reversal/temporary storage unit for guiding a sheet in a direction different from a discharge direction toward the paper discharge tray, once exposing the sheet outside of the apparatus, and rotating conveying rollers in an opposite direction to thereby reverse the sheet; and a protective cover, which covers the sheet conveyed to the reversal/temporary storage unit so that a sheet, of which one-surface has been subjected to printing, cannot be taken out from outside.

Abstract: The present invention provides a thermal transfer image-receiving sheet with a dye receiving layer formed from a powder composition, the thermal transfer image-receiving sheet having a dye receiving layer which gives high-quality transfer images and has satisfactory printing sensitivity, as well as production process whereby the thermal transfer image-receiving sheet can be consistently obtained; the thermal transfer image-receiving sheet 1 has a dye receiving layer 3 formed from a powder composition composed mainly of a dye-tingible resin on a base 2 made of a paper, and the dye receiving layer 3 is formed to a substantial thickness of 7 &mgr;m or greater.

Abstract: A probe card including a plurality of probe blocks can be easily put together substantially in a lattice-like form, and four chips adjoining around the intersection portion of imaginary boundary lines intersecting at right angle each other form a cross-like shape to be tested simultaneously. A plurality of probe blocks with the first and second probe group including a plurality of probes are set up on a base plate substantially in the lattice-like form by a probe set-up means. The needle points of the first and second probe groups are respectively located across the imaginary line so as to oppose to each other. A probe blocks located around the lattice intersection portion are fitted to the base plate such that the needle point parts of the probes located in the vicinity of the lattice intersection portion are positioned on the same side with respect to their needle rear part.

Abstract: Thermal transfer image-receiving sheet comprising paper as a substrate sheet and provided on the substrate sheet in the following order, and expanded layer and a receptive layer, and undercoat layer being provided between the substrate sheet and the expanded layer. Also disclosed is a thermal transfer image-receiving sheet including a substrate sheet of paper composed mainly of pulp and, provided on the substrate sheet in the following order, and expanded layer, an intermediate layer and a receptive layer, the intermediate layer having been formed by coated an aqueous coating solution.

Abstract: A method of manufacturing a thermal transfer image receiving sheet which comprises a substrate made of a paper comprising essentially pulp, an intermediate layer disposed on said substrate and a receptor layer disposed on said intermediate layer, comprising steps of: forming said intermediate layer having a structure comprising fine pores on said substrate, and forming said receptor layer on said intermediate layer.

Abstract: A thermal transfer image-receiving sheet is provided which causes none of a dimensional change, curling, misregistration of image and can produce a printed image having satisfactory image quality and density. The thermal transfer image-receiving sheet comprises: a paper substrate; and a dye-receptive layer provided on one side of the substrate, a water vapor barrier layer composed mainly of a resin being provided on at least the side of the thermal transfer image-receiving sheet remote from the dye-receptive layer.

Abstract: A thermal transfer-receiving sheet of the present invention comprise a substrate made of a plain paper and a receptor layer formed by applying, on the substrate, a powdery composition containing a dyeable resin. The receptor layer has a coated amount in a range of 6 g/m.sup.2 or more and 22 g/m.sup.2 or less, or alternately has a substantial thickness in a range of 7 .mu.m or more, which is defined by excluding a portion of the receptor layer infiltrating the substrate. A surface of the substrate may has physical properties in which a surface texture is in a range of 471 or less in terms of a roughness index, and a surface roughness is in a range of less than 2.1 .mu.m in terms of an arithmetical mean deviation of profile(Ra), less than 23.2 .mu.m in terms of a maximum height (Rmax) and less than 20.8 .mu.

Abstract: A thermal transfer image-receiving sheet is provided which does not cause destruction of a heat-insulating, porous layer at the time of formation of a dye-receptive layer, has no fear of the dye-receptive layer being separated, and in addition can produce a printed image having satisfactory image quality and density. The thermal transfer image-receiving sheet comprise: a paper substrate; and, provided on the substrate in the following order, a heat-insulating, porous layer composed mainly of a resin, a barrier layer, and a dye-receptive layer, the barrier layer comprising at least a mixture of polyvinyl alcohol with a polyurethane resin, the weight ratio on solid basis of polyvinyl alcohol to polyurethane resin being 10:100 to 80:100.

Abstract: An image receiving sheet comprises a paper substrate, a foamed layer formed on a paper substrate and a color receptor layer formed on the foamed layer. The image receiving sheet and an ink sheet are attached to each other in an overlapped fashion so that a printing energy from the thermal head is applied to all printing area at a time of image forming, the printing energy including an image-wise energy corresponding to image data and a background energy being applied to all printing area of the image receiving sheet and being defined in a look-up table, the image data is controlled by the look-up table.According to a thermal transfer recording method of the present invention, a good quality image can be formed on the image receiving sheet.

Abstract: A thermal transfer image-receiving sheet including a substrate sheet and a dye-receptive layer provided directly or through an intermediate layer on one surface of the substrate sheet, the dye-receptive layer having a surface roughness of center line average height Ra=1.0-4.0 .mu.m, maximum height R.sub.max =15.0-37.0 .mu.m and 10-point average height Rz=10.0-30.0 .mu.m. Also disclosed is a thermal transfer image-receiving sheet comprising paper as a substrate sheet and, provided on the substrate sheet in the following order, an expanded layer and a receptive layer, an undercoat layer being provided between the substrate sheet and the expanded layer. Also disclosed is a thermal transfer image-receiving sheet comprising a substrate sheet of paper composed mainly of pulp and, provided on the substrate sheet in the following order, an expanded layer, an intermediate layer and a receptive layer, the intermediate layer having been formed by coating an aqueous coating solution.

Abstract: A roll-type heat transfer image-receiving sheet comprising a wind-up cylinder and a heat transfer image-receiving sheet which comprises at least a substrate and a coloring material-receiving layer provided thereon, the heat transfer image-receiving sheet being wound around the wind-up cylinder, wherein the maximum surface roughness of the wind-up cylinder in the longitudinal direction thereof is controlled to 40 micrometers or less; the wind-up cylinder is prepared by using pulp as a main component, and a cushioning material is provided between the wind-up cylinder and the heat transfer image-receiving sheet; a lead sheet is provided to the leading end of the heat transfer image-receiving sheet so that the image-receiving sheet can be easily led through a printer; and the heat transfer image-receiving sheet is wound around the wind-up cylinder with the coloring material-receiving sheet outside so that curl will not remain in the image-receiving sheet and that curl will not be developed during a printing proce

Abstract: The present invention provides the process for treating the animal hairs by solubilization wherein the animal hairs can be treated in a short time without any complicated operations and special apparatuses, and the process for recovering the solubilized product of the animal hairs wherein said product can be recovered simply and efficiently from the solution thereof. The former is the process for treating animal hairs by solubilization which comprises solubilizing the animal hairs in a weak alkaline liquid medium in the presence of an oxidizing agent whose concentration is high. The latter is the process for recovering a solubilized product of animal hairs which comprises admixing a solution of said product with an organic acid or an aqueous solution thereof to precipitate said product.