Nitto-denko Corporation

Katsuyuki Okazaki

Katsuya Kume

Mitsuo Kuramoto

Hidetoshi Itou

Makoto Kai

Yutaka Tosaki

Itsuroh Takenoshita

Kihachi Suzuki

A laser beam writing material having: silicon dioxide; and a titanium-containing compound fixed with the silicon dioxide and capable of being changed in color by irradiation with a laser beam; wherein when a color-changed portion in the laser beam writing material is formed by irradiation with the laser beam and exposed to the air at 600&#xb0; C. for 30 minutes, contrast between the color-changed portion and a color-unchanged portion in the laser beam writing material is not lower than 0.60; a material for forming the laser beam writing material, having a mixture at least including the titanium-containing compound and an MQ resin; and a display body having a color-changed portion formed by irradiation with the laser beam in the laser beam writing material.

Laser beam writing material, material for forming the same, and display body

A printing sheet is disclosed from which burned sheets, such as, e.g., a management label effectively utilizable from the production of Braun tubes to the salvage thereof, which are excellent in chemical resistance, heat resistance, weatherability, hiding power or reflectance, etc., can be formed while satisfying advantages such as the bondability to curved surfaces which enables the printing sheet, after having been printed according to circumstances to impart information thereto, to be tightly bonded to adherends with heating, the suitability for expedient printed-sheet formation in which a variety of printed sheets necessary for the production of small quantities of many kinds of products can be formed therefrom in situ, etc. according to circumstances, and the ability to be easily and tightly bonded to adherends. The printing sheet ( ) comprises a sheet made of a mixture comprising inorganic particles, an MQ resin, and a silicone rubber. Also disclosed is a printed sheet obtained by imparting ink information ( ) to the printing sheet by thermal transfer printing.

Printing sheet and printed sheet

A process which is for efficiently producing a silicone-based printing sheet and capable of forming an ink-receiving layer which is excellent in the fixability of a thermal transfer ink thereto and can be peeled off easily. The process comprises spreading a coating liquid containing at least a cellulosic polymer and a silicone resin as components on a carrier film wherein at least a surface layer on the side to be coated with the coating liquid is made of poly(vinylidene fluoride), and drying the coating to form an ink-receiving layer.

Process for producing printing sheet

Sheet for forming burned pattern

A sheet for printing, which comprises an ink-receiving layer comprising a fluoropolymer film, optionally having property to absorb or scatter ultraviolet rays; an ink comprising a fluoropolymer and a colorant; and a printed sheet comprising the sheet for printing and information comprising the ink formed on the ink-receiving layer of the sheet by thermal transfer printing. With the sheet for printing and the ink, it is possible to form a printed sheet having so high weatherability that the ink information, even upon outdoor weathering, does not disappear and retains satisfactory readability over long period of time without the necessity of forming a coating layer thereon, by imparting ink information in situ, etc. by thermal transfer printing according to circumstances. Ink information can be imparted according to circumstances even with a commercial thermal transfer printer, and the ink information formed is excellent in fixability and weatherability because the ink, during the thermal transfer, was satisfactorily fused and contact-bonded to the ink-receiving layer through the fluoropolymers.

Sheet for printing, ink, and printed sheet

Disclosed are (1) an adhesive sheet for printing comprising a layer to be printed having no release coat, and at least an adhesive layer having an adhesive strength of 1 to 5000 gf/50 mm to the layer to be printed, and (2) a label having a heat transfer pattern comprising a heat fixing ink comprising a polyolefin and a colorant on the layer to be printed of the adhesive sheet for printing.

Adhesive sheet for printing and label

A pattern-forming sheet or label which is so flexible as to be expediently patterned, can provide a heat resistant or chemical resistant pattern to a product to be labeled, and can be subjected to high temperature atmosphere without burning treatment is provided, comprising a bonded laminate of a base layer obtained by shaping a low-melting glass powder into a sheet with a low-temperature decomposable acrylic polymer, and an ink-receptive layer made of a silicone resin layer containing an inorganic powder. Further, a novel label is provided, having a transfer pattern made of an ink containing an inorganic colorant formed on the ink-receptive layer of the pattern-forming sheet.

Growing community of inventors

Osaka, Japan

Katsuyuki Okazaki