First, the size of the collapse plane or the surface of the object varies greatly. On a per square meter basis, the size of the collapse plane or surface of the object is as small as several square centimeters, and as many as thousands of square centimeters.
The second is that there is periodic collapse, along the production direction of the single-sided machine, corrugated board reveals cyclical collapses that are not absolutely the same;
The third is that the size of the collapse plane or the surface of the object is half along the middle of the corrugated medium and the width of the waist is small, and the shape of the collapse is irregular;
Fourth, the size of the collapsed surface or surface of the surface within the surface degumming, corrugated board thickness of some of the surface of the thinning, and some only the standard thickness of 30 percent of the standard.
In a large amount of production, this lack of partial collapse will affect the quality of production, resulting in a number of multiple scrap, resulting in a substantial increase in the system, the company suffered. Such a three-layer, five-layer or seven-layer corrugated cardboard will surely cause the size of the degumming plane or the surface of the object to be larger than the national standard 20cm2/m2, the side pressure strength is greatly reduced, the thickness of the cardboard is lower than that of the country village, and the printing pattern is inconspicuous. Differences between wastes, such as books and books, seriously affect the entire health level of cartons.
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