Patent ID: 8469868

Claim:
A method for bleed control on a packaging layout having a plurality of packaging decoration patterns for making a plurality of packaging boxes comprising: setting a bleed width; obtaining bleed lines based on the bleed width from cutting lines of each packaging decoration pattern for each packaging box; irradiating light beams toward the packaging layout in four directions substantially perpendicular to each side of the packaging layout to form irradiated bleed line segments, wherein the packaging layout is substantially rectangular-shaped; calculating a ratio of the projection length of each of irradiated bleed line segments to a respective projection length of a respective bleed line for each packaging decoration pattern in a respective irradiating direction; comparing the ratio with a threshold; excluding the irradiated bleed line segments for releasing bleed limit if the ratio is less than the threshold; and releasing bleed limit for the irradiated bleed line segments facing the four directions if the ratio is equal or greater than the threshold.