Four aspects teach you to judge the pros and cons of composite gray cardboard
Judging the pros and cons of a product,we can judge from many aspects,its details,and its appearance,can be used as evidence for our judgment,there are many types of gray cardboard,composite gray cardboard is also One of them,then we can teach you the advantages and disadvantages of composite gray cardboard from four aspects?
1.Thickness is the thickness of the paperboard directly measured by the constant pressure between the measuring faces on both sides,expressed in millimeters or micrometers.At this moment,the thickness of the double gray board is every hundred grams.
2.The scale is the first goal of the board quality standard.The double gray board is of the length and width,the web is only the width,and the cardboard scale is indicated by the millimeter m.Cardboard allows the scale error to not exceed±3 mm;quantification refers to the amount of paper in a square meter area,generally indicated in g/m2.
3.Moisture refers to the water content of the fibers in the double ash board,indicated by%.
4.Skewness,also known as squareness,refers to the maximum value of diagonal error of flat paper,generally expressed in millimeters.At this moment,the skewness cannot exceed three millimeters as required.