This article is mainly discuss folding Angle, creaseline, body-board's height of auto-bend tray-type carton, which supplies mathematic model for the development of carton package CAD.
To make clean straight folds in cardboard, first make a crease along the line with a blunt edge such as a spoon handle, then fold against a firm straight edge.
为了使清洁直纸板折叠，先如勺子处理沿钝边行折痕，然后对折直边坚定。
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This paper reported the normal parameter of palmarmiddle crease and healthful line of 460 cases of Man nationality in Liaoning region.