Peking University

Founder International Co. Ltd.

Founder International Co., Ltd. (beijing)

Jianjun Jiang

Min Liu

Qin Qiong Zhang

Pingli Li

Kaiming Xu

Wenhua Jia

Hanguang Yuan

An automatic trapping method and system is used for packaging printing. The method includes translating trapping objects into simple color blocks, scanning all of the blocks and attaining trapping boundaries, determining whether the color blocks on both sides of the trapping boundaries meet the trapping rule depending on the ink dots percentage and luminance, connecting trapping boundaries by analyzing regions, creating trapping zone and filling ink into the zone and reducing color.

Automatic trapping method and system

Methods and systems are provided for bleed control in a packaging layout having a plurality of packaging decoration patterns for making a plurality of packaging boxes. The method includes obtaining bleed lines based on a bleed width from cutting lines of each packaging decoration pattern for each packaging box. The method also includes 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. The method further includes 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. The method also includes excluding the irradiated bleed line segments for releasing bleed limit if the ratio is less than the threshold, and otherwise releasing bleed limit for the irradiated bleed line facing the four directions.

Method and system for bleed control on packaging layout

Growing community of inventors

Beijing, China

Jianjun Jiang