Apparatus for feeding foil of printing machine with tension

[0022]FIG. 2 is a schematic view illustrating a printing machine according to the present invention. As shown, a foil F wound in a storage reel 10 is unwound as a storage reel 10 is rotated. The unwound foil F moves to a blower 30 in accordance with guide of a tension adjustment shaft 20. The foil F, which has passed through the tension adjustment shaft 20, is blown by compressed air of the blower 30 at a given length. The foil, which has passed through the blower 30, passes through a suction shaft 40 and then reaches a printing part marked with a dotted line. In the printing part, a die 111 of an impression roller 110 performs printing while the impression roller 110 is rotated in a state that it is engaged with a lower roller 120. Feed rollers 130 and 140 at the rear of the printing part are rotated by being synchronized with the impression roller 110. A die 131 of the feed roller 130 has an arc greater than that of a die 111 of the impression roller 110, and moves the foil F without