Local collapse of corrugated cartons adversely affects packaging printing

In modern product packaging design, corrugated cartons are often used. Corrugated cartons are popular with many manufacturers due to their light weight, pressure resistance, and ease of advertising and printing, and the widespread use of corrugated cartons is rapidly developing. There has been a mixed situation. Some cartons often suffer from partial collapse, which has a certain impact on the packaging and transportation of products and the printing of packaging. Local collapse characteristics of corrugated cardboard: First, the area of ​​collapse has changed greatly. On a per square meter basis, there are collapsed areas as small as a few square centimeters, and as many as 1,000 square centimeters. Second, there is periodic collapse, along the production direction of the single-sided machine, cyclical but not exactly collapsed on the corrugated board; The third is that the area of ​​collapsing collapses along the middle of the corrugation and the middle is small, and the collapse of the dome is irregular; Fourth, significant degumming within collapsed areas, and the local thickness of corrugated cardboard is significantly reduced, and some are only 30% of the thickness of the standard. In large-scale production, the existence of such local collapse defects will affect the quality of products, resulting in a large number of secondary waste products, resulting in a substantial increase in manufacturing costs, companies suffer from it. Such a three-layer, five-layer or seven-layer corrugated cardboard will inevitably produce a debonded area whose sum is greater than the national standard of 20cm2/m2, the side pressure strength is greatly reduced, and the thickness of the cardboard is lower than that of the country village. In the printing of the package, the printing pattern will cause virtual flowers. Spots, blurred text and other secondary wastes, seriously affect the overall quality of carton products.