As an important material for die cutting after printing, the indentation line has an important influence on the indentation and forming of the carton. How to distinguish the quality of products, we teach you four tricks: Identify the indentation line of the carton. There is one way: Identify the error of the width and height of the indentation groove Most of the inferior creasing lines are produced by small factories. These small factories generally do not have professional laboratories for product development and quality monitoring. Therefore, the products produced are not uniform, with poor accuracy and large errors. If the model is 0.5X1.5mm indentation line, according to strict laboratory tests, the width of the indentation groove of the inferior indentation line is actually 1.6mm-1.8mm, and the actual measured value is completely outside its nominal value of 7.5mm Inside. The high-quality indentation lines of the same type have an indentation groove width of 1,48mm to 1.53mm, and the error can be controlled within 2%. Another example is the height of the indentation groove, the measured value of the inferior indentation groove height is 0.52mm ~ O. 55mm, the maximum error reached 10%. For high-quality products of the same model, the measured value of the height of the indentation groove is between 0.50mm and 0.51mm, and the error is completely controlled within 2%. It can be seen that the indentation groove error of inferior indentation lines is very large, and it is easy to produce a series of quality problems. There are two ways to identify the creasing line of the carton: the difference between the materials In addition to poor accuracy and large errors, inferior products also cut corners in many important parts, resulting in a decline in product quality. In order to seize market share, inferior indentation line production plants mostly use methods of cutting corners to reduce product costs, so that their products can enter the market at relatively low prices. For example, the width of the bottom mold of the indentation line is taken as an example of the indentation line with a model of 0,5x7.5mm. The width of the bottom mold of inferior products is generally only 1.82mm, while that of high-quality products reaches 2.5mm. The wider bottom mold width means a larger contact area, which is conducive to the bottom mold to be more firmly adhered to the lance die cutting base plate. Another example is the tape used to protect the bottom mold. The width of the tape used for inferior products is even narrower than that of the bottom mold. The consequence is that some bottom molds have lost the protection of the protective glue before use, and it is easy to lose tackiness when used. When the die-cutting machine runs at high speed, the bottom die easily falls out, resulting in damage to the die-cutting machine. The losses caused by downtime and machine maintenance will be even greater. The bottom mold protection tape of high-quality indentation line can completely wrap the bottom mold, so that the entire bottom mold has strong adhesion when used, which effectively prevents the indentation line from falling off and causing damage to the machine, and also improves the accuracy of die cutting . There are three ways to identify the creasing line of the carton: raw material identification The high-quality indentation line is produced with higher quality raw materials, and the products are more uniform. Inferior indentation lines use inferior raw materials, making it difficult to improve product performance. For example, the protective tape of the bottom mold, in order to ensure that the quality of the protective tape can meet strict requirements, the high-quality indentation line production plant has not been purchased from the tape production plant, because the general tape is not suitable for the production of indentation line, and the tape The error range cannot meet the requirements. Therefore, the strong indentation line production plant will specially set up an adhesive tape production line, specializing in the production of adhesive tape for indentation lines. The general indentation line production plant obviously does not have the strength to invest in a professional tape production line. It often buys ordinary tape from the market for the production of indentation lines. The indentation line produced using such materials One can imagine the quality. There are four ways to identify the creasing line of the carton: product development identification High-quality indentation line manufacturers pay more attention to product development, while inferior indentation line manufacturers only focus on local interests. The lack of research and development has made these inferior indentation line production plants lose their thrust to continue to move forward, but just wait for other manufacturers to develop newer products and change them to copy them, but they often get it because they know it but they do n’t know why. The product is nondescript. For example, the positioning rubber strip of the indentation line, each size of the indentation line should use different sizes of positioning rubber strips to ensure that the positioning of the indentation line is completely aligned. However, the general indentation line manufacturers may not be able to get the secrets of the pupils. All indentation lines use the same type of positioning rubber strips, so the indentation lines often appear inaccurate and easy to shift. . Poor quality indentation lines can easily reduce the quality of the indentation and also cause great harm to the die-cutting machine. If carton manufacturers buy these inferior creasing lines, they seem to be cheap and can reduce production costs. However, these products have low precision, large specification errors, and no quality assurance. Instead, they are likely to cause production efficiency to drop and products to be uneven. If the delivery is not timely, the customer returns, etc., the loss is even greater. As the old saying goes: Workers who want to do their best must first sharpen their tools. Choosing a good supplier and purchasing high-quality indentation lines will definitely become your weapon for producing perfect products. 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There are four ways to identify the creasing line of the carton