| 摘要 |
<p>Thermally-responsive record material comprises a support having provided thereon a thermally-sensitive color-forming composition comprising, in substantially contiguous relationship, an electron-donating dye precursor, an acidic developer material, a sensitizer compound of the formula
<Chemistry id="chema01" num="0001"><Image id="ia01" he="38" wi="85" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" /></Chemistry> and a suitable binder therefor. The presence of the compound of formula (I) enhances the stability, intensity and speed of formation of an image produced in the record material in response to thermal energy input.</p> |
