Fifty-fourth of the terminology for carton forming and printing in the corrugated box industry

Also known as square degrees. The maximum allowable deviation of the long edge or short edge of the plane paper from the long or short edge of the corresponding rectangle. The result is expressed in millimeters of deviation or percent deviation. National standards stipulate that: the size is less than 150mm, the skewness is ±1.5mm; the skewness of the size is 150mm~600mm is ±2.0mm; the size is greater than 600mm, the skewness is ±3.0mm.

Knife

One of the special units of measure for paper. 100 pieces of handmade paper of various sizes are used as a knife. According to the requirements of ISO (International Organization for Standardization), one in 20 papers, namely 25 single-sheet papers, is used as a knife.