| 摘要 |
<p>A transparent plastic film having a hard-coating layer on one surface, more particularly a plastic film with a hard-coating layer which is used in fabricating a plastic molded article having the hard-coating layer given thereto by the injection molding method and in which no crack is generated after molding, is provided. A transparent plastic film with a hard-coating layer, wherein, with x ( mu m) representing a thickness of a plastic base film, and y (%) representing an elongation percentage at the time when the film with the hard-coating layer is pulled under a condition at 22 DEG C with one side fixed and at a pulling speed of 20 mm/min, no crack is generated in the hard-coating layer in a region satisfying a relationship: y < 5.7 if x ≤ 100, y < -0.018x + 7.5 if 100 ≤ x ≤ 150, y < -0.008x + 6.0 if 150 ≤ x ≤ 200, y < -0.005x + 5.4 if 200 ≤ x ≤ 300, y < -0.003x + 4.8 if 300 ≤ x ≤ 400, y < -0.002x + 4.4 if 400 ≤ x ≤ 500, and y < 3.4 if 500 ≤ x, when a tensile test is carried out under the above-mentioned condition. <IMAGE></p> |
