Do watermark cartons, you don’t know about these 20 sets of data

1. The air pressure required for the ink printing slot machine is usually 6-8Kgf/cm2.

2. When the ink printing slotting machine adjusts the position of the feeder, the gap between the front door and the rear baffle is 1-2mm larger than the width of the paperboard, so that the cardboard can be neatly stacked and free fall is suitable.

3. When the ink printing slotting machine adjusts the position of the feeder, the spacing between the left and right baffles is slightly larger than the length of the production board by 2-3 mm.

4. The gap between the feed roller and the feed roller of the ink printing slotting machine is 0.1~0.3mm smaller than the thickness of the paperboard.

5. When adjusting the depth of engagement between the upper knife and the lower knife groove of the slotting knife, it should be controlled within the range of 1.5~2.0mm. In principle, the three layers can be smaller than the five layers.

6. In the maintenance of the die-cutting pad of the ink printing slotting machine, the depth of the cutter is controlled to be about 1.3~1.5mm in normal use, and the surface debris and burrs on the pad are removed in time.

7. The ideal range for ink PH is 8.5-9.2.

8. The thickness of the ink printing press steel scraper is generally 0.15mm.

9. The flexographic printing pressure is generally between 10N/cm2-50 N/cm.
10. The commonly used specification for flexo printing for carton printing is 3.94mm.

11. At present, the number of screens commonly used for printing corrugated boxes in flexographic printing is 40-80 lines/inch.

12. In general, the number of anilox roller lines is 4-5 times the number of line screens for printed products.

13. Flexible resin plates cannot reproduce dots below 5%.

14. The flex print has a print resistance of between 500,000 and 1,000,000 prints.

15. The laser-engraved anilox roller technology enables the engraving line to reach a precision of 1000 lines/in.

16. When the pH is lower than 8.2, the viscosity of the water-based ink will increase and drying will accelerate.

17. The pH range of some special water-based inks is different from ordinary water-based inks. The pH value of gold and silver inks is 7.5~8.0.

18. The usage of general pH stabilizer is to add 1~2% of the total ink volume every 30~40 minutes, or stir the stabilizer into circulating ink pump.

19. In ink printing, the amount of defoamer added is generally not more than 0.5%.

20. When adding surfactants to the ink, the addition rate should not exceed 2%.

Information Processing: Carton Street

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