Recently, a carton packaging production enterprise has many problems due to process control and inspection links, resulting in unqualified product adhesive strength.
The bond strength is the main physical property index of the carton. According to investigation, the main reasons for the failure of the bonding strength of the carton products of the enterprise are as follows: First, in the production process of the cardboard assembly line, the oven temperature is low when the cardboard is bonded and dried, and the heat absorbed by the corrugated cardboard is insufficient The high production speed of the upper assembly line affects the drying time, resulting in a high moisture content of the cardboard, which causes the adhesive to gelatinize and cure incompletely, reducing the adhesive strength; second, the paste has a large amount of water, the paste is thin and penetrates quickly, reducing Adhesive strength; The third is that the inspection work is not in place, and the inspection of the adhesive strength of the cardboard has not been strictly implemented, and the abnormality has not been found in time.
"Commodities rely on packaging". The carton packaging of exported products directly affects the overall appearance of the product, and may cause quality problems such as moisture, mildew or rust, and affect the normal trade activities of the product. The inspection and quarantine department reminds relevant carton manufacturers that they must first strengthen the product inspection work, and test the physical properties of the cardboard at a normal frequency to solve abnormal problems in a timely manner to ensure the quality of the cardboard; secondly, strictly control the process temperature of the cardboard production process , While stabilizing the vehicle speed during the operation, ensure that the curing temperature of the paste meets the relevant requirements; Finally, focus on controlling the paste process, rationally adjust the paste ratio and the amount of water, strictly control the paste mixing time and paste amount, to ensure paste Liquid viscosity and overall quality.
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