Principle, course and development of the most popu

2022-07-26
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The principle, process and development of non horizontal printing

principle

the unique pre sensitive printing plate can be printed on the machine without wetting water. The non image part is covered by the silicone layer for ink discharge, while the image part is slightly sunken and forms a polymer surface layer for acceptable ink. The non horizontal version is characterized by high quality, simple printing operation, pollution-free high-efficiency production, and unique printing process of anhydrous and alcohol

process

1.in 1798, alosi sencfeloler, an Austrian, invented the method of making oil-free ink and non image stone contain water in porous... And then distributing the ink that will only stick to the oil-free ink image part to complete the lithographic printing method with image and non image on the same plane

2. In East Asia, lithography occupies about 75% of the total printing production, which is the most convenient and widely used format. The advantages are that plate making is easy and cheap, and indirect printing is not picky about the paper

3. Due to the use of moistening water to keep the non image clean, the concentration of ink emulsion printing is unstable. In addition, the temperature, degree, image, ink layer thickness and printing speed make it difficult to control the supply of moistening water evaporation and consumption changes. In particular, the whole surface 3 is a problem of uneven in innovative fields such as new materials, and the production technology is complex

4. In 1964, Heidelberg used letterpress to use letterpress for indirect printing, known as lattcrsct, with lattcrprcss prefix and offsct character. Therefore, the material performance requirements are representative. It can be used for long plate stable printing, especially for thick cards and rough paper surface, which is very beneficial

5. In the late 1960s, 3M applied for a patent in the form of water-free and ink repellent printing with Teflon and other low thermal coefficient materials, but it has been unable to operate commercially

6. In 1972, Toray Toyo Co., Ltd., a large company of synthetic fiber and chemical products, bought the patent of 3M silicone adhesive non horizontal printing for commercial research and development

ray was first introduced in drupa 77. Tap positive type water free printing plate was introduced in 79 and Tan negative type water free printing plate was introduced in 1983, but it still can not solve the problem of long plate printing stability

8.1985 printing press:

1. Improvement of ink roller cooling system

2. Ink improvement

3. With the improvement of ink roller adjustment technology, non horizontal printing has gradually stepped into a smooth path, which has attracted the attention of the printing industry

ray was introduced in 1986 with anhydrous UV drying ink, in 1988 with commercial thermosetting non horizontal printing, in 1990 with high durability positive non horizontal printing, and in 1999 with CTP non horizontal printing

10. GTD Di was introduced by Heidelberg in 1990 by prcsstck of the United States. It established the world's leading computer to press status by using tungsten steel needle discharge imaging without horizontal printing and laser thermal imaging in 1995. Because pressek is completely free of development and plate making on a horizontal printing machine, it has achieved the characteristics of both a printing machine and a digital plate making machine

11. At present, the prcsstck Di technologies used include Heidelberg qm-46di, Adast, karat, Sakurai, akyama, imation, nilmeter, Alcoa, omso, etc

ray plate structure consists of 1 aluminum substrate, 2 bonding layer, 3 photosensitive layer (thermal layer), 4 silicone layer and 5 protective layer. The photosensitive layer and the positive film type are photosensitive combined types, while the negative film type is a different functional structure of the photosensitive decomposition type

13. Development steps: 1 remove the protective film, 2 pre swell, 3 brush hair development to remove the silicone layer of the peeled image, 4 dye and develop the image. It can also be printed without dyeing, but dyeing can be recognized and scanned by the image scanner. The silicone film should be removed from the plate mouth and plate tail. The positive film should not be sensitive, and the negative film should be sensitive, so that the plate clamp has astringent resistance and does not slide and clamp the printing plate

14. With anhydrous special ink, it can produce a very thin liquid layer on the silicone surface to prevent the ink from persisting non adhesion. Previously, silicone oil was used, but now it is not used because of its unfavorable catalyst afterburning system

15. No horizontal printing because there is no cooling effect of moistening and steaming heat, the ink roller may rise by 15 ℃ when printing more than 10000 copies on the leaf tensioning machine, which is higher than 8 ~ 10 ℃ with water. It is unfavorable to keep the silicone non stick ink in the non image part during printing. The ink has four anti splitting forces, h.n.l. and L.L., and also adapts to different printing machine speed and temperature conditions

16. It is necessary to control the temperature of the plate and ink roller within the range of ± 1.5 ℃. Some inks have only a tolerance of ± 0.8 ℃, while others have a tolerance of ± 1.5 ℃. Too high a temperature will cause dirt, too low a temperature will cause poor ink movement, and the full plate is not really white. Therefore, the ink balance technology without horizontal printing conversion becomes a more data manageable temperature control. In principle, warm water and chilled water facilities shall be provided to maintain the smooth progress of startup and printing works

17. No horizontal printing advantages 1 printing is easy without the trouble of ink balance. 2. The ink concentration is high and stable. 3. Good reproduction of fine points of image. 4. It can print about 400 lines and high fax copies. 5 reduce the occurrence of waste paper. 6. Work efficiency can be improved. 7 small size printing is easy. 8. Printing organization document making and purification. The 9th edition has strong tone and large contrast. 10 less paper stretch. 11 talent training is easy

18. Can not lithography disadvantage 1 patent version and ink are more expensive. The structure of the printing press has changed and must be cooled. 3. The printing plate has protective film and cannot be developed automatically. 4. The silicone layer is not resistant to friction. It is not easy to revise and fill. Non photosensitive plates are prone to aging and dark reaction. The 7 version is hard and not suitable for skin color and light color printing. 8 large ink consumption

19. Waterless leaf printing machines are easy to find, because many leaf printing machines have ink roller cooling systems to maintain the constant temperature of the printing plate and inking system, but different considerations are made for the printing of plate materials

20. There is Mn rolancl polymer KBA corona, no water wheel transfer printer

21. The single fluid non wetting system printing method uses the traditional water printing plate, but the flexible packaging enterprises must keep up with the pace of market recovery and the mixing of water and ink emulsion printing ink, but the evaporation water supplement is very important

the plate making on the machine is changed into a horizontal printing plate, which is more convenient when other external plate making methods are available

23. There is no horizontal printing inside the non absorbable surface with UV in the plastic surface. Credit cards and CD ROMs are widely used, and the development prospect is very good

24. Thermal CTP non horizontal printing plate will become the mainstream, and the leading development of non horizontal printing is mainly due to the advantages of short engineering, good quality, high printing capacity and low technical difficulty of personnel

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