Abstract: A milk beverage of the present invention comprises a polyglycerol fatty acid ester having a cloud point of not less than 90° C. when measured at a concentration of 1% by weight in a 20% sodium chloride aqueous solution containing said ester.

Abstract: A solubilizing agent of the present invention comprises a polyglycerol fatty acid ester, an ester-constituting polyglycerol of the polyglycerol fatty acid ester comprising polyglycerol having a degree of polymerization of not less than 8 in an amount of not less than 70% by weight based on the weight of the ester-constituting polyglycerol. Such a solubilizing agent capable of solubilizing an oil-soluble material such as colorants, perfumes, vitamins, anti-oxidants, preservatives, germicides or fats and oils in an aqueous solvent, and a hydrosol composition containing the oil-soluble material solubilized in the aqueous solvent.

Abstract: Method for producing a picture on the surface of a substrate by laser-printing comprising the steps of:generating still video information consisting of a series of gradational signals each of which corresponds to each of picture elements within a predetermined frame;preparing a substrate having a surface carbonizable or discolorable with heating;generating a laser beam having a sufficient energy to cause the carbonizing or discoloring of said surface;modulating the laser beam in accordance with said video information;scanning the modulated laser beam in accordance with said video information within said frame; anddirecting and focusing said scanned laser beam to form a sweeping spot over the surface area of said substrate corresponding to said predetermined frame, thereby producing a graphic pattern consisting of picture elements individually gradationally carbonized or discolored.