The color printing carton needs to be recovered according to the situation. If the damage just used is not serious, there is no problem. It can be used after treatment, but the condition is relatively strict, that is, there is no obvious wear during the use or the damaged things do not need to exist, As long as such high-quality recovered express cartons may be packaging cartons, they can be directly recovered for use. Most cartons are laborious when they are retrieved. Because they are used carelessly, they are recovered after disassembly. If such cartons are retrieved, they need to be rebuilt. Only the cartons generated from scratch can be used again.

Color printing packaging boxes are mainly used as packaging products, and their appearance requirements are relatively high. When they are used, there will be some influencing factors that will lead to the collapse of the packaging. Once the collapse will affect the overall application effect, and the collapse is often related to many factors, the following will teach you how to prevent this phenomenon. When producing color printing packaging, it is required to control the moisture content inside the packaging box. The moisture content of the paper should not be too high. Everyone knows that too high moisture content will affect the hardness of the product, and then affect the corner orientation of the packaging box after molding.

At present, color printing packaging box is widely used as a kind of packaging product. It not only has a variety of appearances, but also has very good application performance. Waterproofness is a relatively important goal. We need to master the correct measurement method to know whether its waterproof performance is good or bad. When testing, we should pay attention to the correct control of the method, Now let's introduce the method to test the waterproof performance. Test method of Cobb absorption meter: cut the color printing package into 125 mm diameter Round test piece Before placing the corrugated board sample, make sure that the cylinder ring surface and rubber pad in contact with the sample are dry. Use a glass measuring cylinder to measure 100mL of distilled water and pour it into the cylinder, then place the weighed round corrugated board sample on the circular surface of the cylinder, the measured surface is facing the direction of water, and cover the sample with a gland to fix it on the cylinder. Turn the cylinder 180 ° and start the stopwatch together for timing. Every 5 times of measurement, add a certain amount of water according to the water absorption of the corrugated board sample.

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