Post-press processing: four ways to identify carton indentation lines (1)

Indentation line as an important material for die cutting after printing, has an important impact on the indentation and molding of the carton. How to identify the quality of the product, we teach you four strokes:

Identifying the carton creasing line has a move: the width of the creasing groove and height error discrimination

Inferior indentation lines are mostly produced by small factories. These small factories generally do not have specialized laboratories for product R&D and quality control. As a result, the products produced are not uniform and have poor accuracy and errors. If the model is 0.5X1.5mm indentation line, according to the laboratory strict test, the width of the indentation groove of the inferior quality indentation line is actually 1.6mm-1.8mm, and the actual measurement value is completely out of the range of 7.5mm. Inside. The quality of the same type of indentation line, indentation groove width range of 1,48mm ~ 1.53mm, the error can be controlled within 2%. Another example is the height of the indentation trough, the measured value of the inferior indentation trough height is 0.52mm~O. 55mm, the maximum error reached 10%. For high-quality products of the same type, the measured 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 of the inferior creasing line has a very large error and it is easy to produce a series of quality problems.

Identifying the carton indentation line moves two: the difference in the material

In addition to the poor accuracy and the large error, inferior products are still cutting corners at many important sites, resulting in a decline in product quality. In order to seize the market share, low-quality indentation line manufacturers use cutting-edge methods to reduce product costs, so that their products can enter the market at a relatively low price. For example, the width of the indentation line bottom mold is based on an indentation line of model number 0,5x7.5mm. For example, the bottom mold width of a poor quality product is generally only 1.82mm, while that of a high quality product is 2.5%. A wider width of the bottom mold means a larger contact area, which facilitates the bottom mold to be more firmly attached to the spear cutting base plate.

Another example is to protect the bottom mold tape. The tape used in inferior products is even narrower than the bottom mold. The consequence of this is that parts of the bottom mold have lost the protection of the protective rubber before use and can easily lose its viscosity when used. When the die-cutting machine runs at a high speed, the bottom mold easily falls out, resulting in damage to the die-cutting machine. Losses caused by downtime, machine maintenance, etc. will be even greater. The bottom mold protection tape of the high-quality indentation line can completely cover the bottom mold, so that the entire bottom mold has strong adhesiveness during use, effectively avoids the indentation line from falling off and causes damage to the machine, and at the same time, improves the accuracy of die cutting. .