Loading patent…
AssigneeDai Nippon Insatsu Kabushiki Kaisha
InventorsMasayuki Nakamura, Katsuyuki Oshima, Jitsuhiko Ando
Estimating the term…
In a heat transfer sheet wherein an image of a dye layer (2a, 2b, 2c and 2x) is transferred to an image receiving sheet (11), such as a card, according to an image signal applied to the dye layers (2a, 2b, 2c and 2x) by thermal heads, the dye layer is applied to only a specific local area of a substrate film (1) corresponding to an area of the image receiving sheet in which the image is to be formed. Accordingly, the dye layer is not caused to contact the area of the image receiving sheet (11) where the transferred image is not present, and a field contamination produced in the peripheral portion of the transferred image is prevented. In addition, the dye layer is locally provided whereby the dye layer is saved. A protective layer (2p) to be transferred to the surface of the image on the image receiving sheet (11) can be provided on the heat transfer sheet. The protective layer (2p) imparts resistance to wear and resistance to contamination to the transferred image on the image receiving sheet (11).
A method of heat transfer printing, comprising the steps of providing a heat transfer sheet which comprises a substrate film and heat migratable dye layers of at least one color provided on one surface of said substrate film;
A heat transfer sheet comprising a substrate film, and heat-migratable dye layers of at least one color provided in a spaced relation on one surface of the substrate film, each of said dye layers being provided in a specific local area of the substrate film corresponding to a local area of an image receiving sheet in which a transferred image is to be formed, said dye layers comprising sublimable dye layers of at least one color and a hot melt ink layer of at least one color.
A method of heat transfer printing, comprising the steps of providing a heat transfer sheet which comprises a substrate film and heat migratable dye layers, for transfer printing of at least one color, applied to successively adjacent areas on one surface of said substrate film at predetermined pitches;
A heat transfer sheet comprising a substrate film, and heat migratable dye layers, for transfer printing of at least one color, applied to successively adjacent areas on one surface of the substrate film at predetermined pitches, each of said dye layers extending solidly and uniformly in a specific local area within each of said adjacent areas on the substrate film, said specific local area having an extent to cover only a local area of an image receiving sheet in which a transferred image is to be formed.
Dependencies are inferred from the claim text.