Thermal transfer sheet
AssigneeDai Nippon Printing Co., Ltd.
InventorHiroto MATSUI
Life of this patent
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Abstract
To provide a thermal transfer sheet capable of preventing print omission from occurring on a transfer layer to be transferred and producing of a print having a good gloss. A back face layer 20 is provided on one surface of the substrate 1 and a transfer layer 10 is provided on the other surface of the substrate, the transfer layer 10 has a single-layer or layered structure including a protective layer 5, the back face layer contains spherical particles 25, and when the surface of the back face layer is observed using a scanning electron microscope (SEM) at a magnification of 5000 times, the proportion of the total of the projected areas of the spherical particles is 1.8% or more and 20% or less based on the area of the entire observed surface.
Claims7
A thermal transfer sheet, wherein
- a back face layer is provided on one surface of a substrate and a transfer layer is provided on the other surface of the substrate,
- the transfer layer has a single-layer structure or a layered structure comprising a protective layer,
- the back face layer contains spherical particles, and
- when the surface of the back face layer is observed using a scanning electron microscope (SEM) at a magnification of 5000 times, a proportion of a total of the projected areas of the spherical particles is 1.8% or more and 20% or less based on an area of an entire observed surface.
Dependencies are inferred from the claim text.