Method and apparatus for printing
A printing method and printing device technology, applied to printing devices, printing, printing machines, etc., can solve the problems of reduced printability, foreign matter mixing, pollution, etc., and achieve the effect of improved printing characteristics and stable wettability
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Embodiment 1
[0091] Using the gravure offset printing method, on the surface of the front panel of the PDP (diagonal distance 42 inches type), electrode patterns made of conductive paste ink were printed. The components used in printing are shown below.
[0092] As a blanket, a support film layer made of polyethylene terephthalate with a thickness of 350 μm and a silicone rubber with a thickness of 300 μm (manufactured by Sumitomo Rubber Industries, Ltd. , rubber hardness (JIS A) 40) of the surface rubber layer of the blanket (average roughness of 10 points of the surface is 0.1 μm), which was wound on a metal cylinder for use. The outer diameter of the blanket was 500 mm, and the length in the axial direction was 1000 mm.
[0093] As the conductive ink, an ink prepared by mixing acrylic resin, silver powder, glass frit, and diethylene glycol monobutyl ether acetate (solvent), and mixing and dispersing with a roll mixer (Sanbenrol) was used. In addition, when the surface rubber layer (si...
Embodiment 2
[0100] A color filter pattern made of liquid crystal color filter ink is printed on the surface of a glass substrate by the reverse printing method. Members used in printing are as follows.
[0101] As the blanket, the same thing as in Example 1 was used.
[0102] The ink was applied to the surface of the blanket using a slit die coater (slit interval: 50 μm), and was applied over the entire printing area on the surface of the blanket.
[0103] The ink for liquid crystal color filters uses an ink that is mixed and dispersed with a polyester melamine resin, an organic pigment, a dispersant, and a solvent (PGMEA; propylene glycol monomethyl ether acetate).
[0104] The printed pattern was a striped pattern with a line width of 80 μm and a pitch of 360 μm, and a glass intaglio plate (32-inch type) in which concave portions corresponding to the above-mentioned printed pattern were formed was used as the concave-convex plate used in the removing step.
[0105] printing devices su...
Embodiment 3
[0110] As a printing device, the same device as that used in Example 1 was used.
[0111] In the suction process, first, the blanket is kept at 23° C. (the same temperature as the room temperature in the clean room) from the gas nozzle 17 while rotating the blanket so that the peripheral speed of the blanket becomes 10 mm / s. After passing through a membrane filter with a mesh size of 0.3 μm, the nitrogen gas is blown to the surface of the blanket 10 at a wind speed of 10 m / s, and then the suction nozzle 15 is used to make the vacuum near the surface of the blanket 10 reach about 1333.22 Pa ( 10 Torr).
[0112] As a result, even after continuous printing on the front panel of 10,000 PDPs, the printed shape of the electrode pattern was extremely good, and basically no disturbance of the printed shape was observed. In addition, stable quality can be obtained in any of the line width of the electrode pattern, the film thickness, and the resistance of the electrode after pattern f...
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