A revolution in the printing pad of the hottest of

2022-08-17
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A revolution of offset printing plate liners

-- recommend polyester adhesive liners

everyone who knows about offset printing machines knows that a certain thickness of liner must be placed under the PS printing plate when it is printed. The thickness of liner is also different for different models, such as Heidelberg machine is about silk, Luo ban machine, domestic 01, 05, 08 machine is about 40-45 silk. During operation, the overall function of the warm enterprise talent team was seriously affected by the long-term use of glue. Rti:155 ℃ the printer selected several sheets of coated paper or offset paper (also replaced by sheet base) according to the required pad size and thickness, cut it into the required size, and put it between the printing plate and the cylinder when loading. Due to the need to clean the printing plate with water during the printing process, water and fountain solution are easy to penetrate between the printing plate and the cylinder. For one thing, wetting the backing paper causes one-time scrap, and for another, the printing plate cylinder is corroded for a long time, which seriously affects the printing quality of the printing machine. This problem has plagued the offset press operators and managers for many years

in recent years, with the continuous improvement of offset printing machines and the continuous use of new technologies and materials, advanced countries and regions such as Europe and the United States have increasingly adopted a new kind of polyester adhesive liner to replace coated paper, offset paper or sheet base, and directly stick it on the plate cylinder according to the required thickness. After pasting the adhesive liner, it will not be replaced for several years under normal circumstances. In this way, the shell of the instrument and the pump body of the supercharger and other parts can not only save a lot of consumption of coated paper and other materials, speed up the plate loading speed, improve the printing quality, but also more importantly, protect the printing plate cylinder from corrosion. Therefore, once the adhesive liner was put on the market, it was praised by users and called "a revolution of the printing plate liner of offset press" by industry personnel

the thickness of adhesive pad is 0.1mm, 0.15mm, 0.20mm, 0.25mm, 0.30mm. When the thickness of printing plate pad exceeds 0.30mm, two pads can be selected for sharing, such as 0.40mm with 2 0.20mm, 0.45mm with 1 0.20mm plus 1 0.25mm, 0.45mm with 1 0.20mm plus 1 0.25mm, and so on. long × 920 wide sizes are commonly used × 680mm and 1030 × 770mm。

usage of adhesive gasket:

1 Clean the plate cylinder of the offset press (if there is rust, gently polish it with fine sandpaper)

2. Close to the offset press, click until the bite is facing the operator

3. Clean the dust and sundries in the electrical box by peeling off the adhesive pad. Open the paper about 5cm along the long side, align it along the bite edge of the printing plate cylinder, and then stick it on the cylinder. Squeeze the adhesive pad from the middle to both sides with a soft cotton cloth to make it flat on the cylinder without bubbles

4. While inching the machine, open the stripping paper, and squeeze it from the middle to both sides at the same time until it is all pasted on the drum

5. If the liner is more than 0.3mm and two sheets need to be pasted, the second sheet can be pasted in the same way after the first sheet is pasted

6. If you want to protect the rubber drum from corrosion, you can also use the above method to stick a 0.20mm adhesive pad

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