What are the operation points of flat die cutting?

What are the operation points of flat die cutting?

The quality of die-cutting is related to the self-adhesive material itself and the accuracy of the equipment.

1) Do not use die-cutting film materials that have been die-cut through paper-based materials. Since the blade has worn away, it is not suitable for die-cutting films.

2) When flat die cutting, reduce the die cutting area as much as possible: especially for small labels with full plates, the quality is difficult to guarantee due to the large layout and many rows of knives.

3) The backing plate should be replaced frequently during flat-press die-cutting, especially for the processing of long plates, because the cutting marks will affect the die-cutting quality of the new format label.

4) Frequently check the quality of die cutting, especially the automatic labeling. In order to avoid the emergence of quality problems in large quantities. The detailed inspection method is to smear on the backing paper with a signal pen to check the penetration and leakage of the backing paper.

5) Die-cutting large-area labels with complex patterns requires professional manufacturers to produce die-cutting plates, which can ensure the accuracy of die-cutting.

6) To maintain the sharpness of the blade, establish a file and record the use of each die-cutting plate in order to replace the blade in time.

7) Die-cut film adhesive material, especially PET material, should be die-cut with a special blade with small angle and high hardness.

Preliminary exploration of the diversified development of label printing factories. Because of the improvement of film surface printing suitability and the improvement of UV drying technology, the market trend of non-paper labels (N. Paper Label) has gradually formed. Facing the increasingly fiercely competitive label market, label printers should consider diversified development and develop more label varieties, such as film labels, without messing up or expanding their business volume.

The printing material sticker label material is composed of face material, adhesive and backing paper. According to the difference of face material, it can be divided into paper sticker material and film sticker material. The surface materials of film adhesive materials are polyester (PET) film, biaxially oriented polypropylene (BOPP) film, vinyl chloride (PVC) film, polyethylene (hospital) film, low density polyethylene (LDPE) film, etc.

The surface material of the film sticker material is similar or basically the same as the film label material, but the sticker material and the film material are essentially different in terms of printability. If you need to use self-adhesive label printing equipment to print film labels, you should pay attention to the impact of changes in printing materials on the printing process.

1) Because the self-adhesive material is supported by the bottom paper, the stiffness is large and the size is not disordered: the film is small and the size is not disordered. When printing, it is necessary to control the film tension well. The system has a large adjustment range, the tension is too small, the film easily appears horizontal wrinkles during the printing process, and the overprint is not accurate; the tension is too large, which will cause the material roll to be stretched and deformed, and the imprint will not be smooth and even pull. Broken material rolls, affecting the smooth progress of printing.

2) The surface of the film faces poor ink absorption, and the surface of the film should be treated before printing, such as corona treatment, surface coating treatment and other printing methods.

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