Thermal transfer sheet

Details Thermal transfer sheet Thermal transfer sheet

1991-11-27

1994-12-27

Ryan, Patrick J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

4284231, 428484, 4284884, 428913, B32B 300

Patent

active

053764323

ABSTRACT:
There is used, as a substrate film, a polypropylene film having a tear strength in the range of 15 to 40 Kg with respect to an MD direction and a TD direction thereof; an elongation in the range of 40 to 200 with respect to the MD direction and the TD direction thereof; and a Young's modulus in the range of 200 to 600 Kg/mm.sup.2 with respect to the MD direction and the TD direction thereof, and a transferable ink layer is formed on a surface of such a substrate film. When the resultant thermal transfer sheet having such a structure is used, a printing pressure based on a thermal head is sufficiently transmitted to a transfer receiving material, and therefore it is possible to form an image of good quality on the transfer receiving material even when the transfer receiving material comprises a plain paper having a relatively rough texture (or relatively coarse grain).

REFERENCES:
patent: 4961997 (1990-10-01), Asano et al.
patent: 4965239 (1990-10-01), Henzel
patent: 4999335 (1991-03-01), Mruk et al.

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