Original plate for lithographic printing plate, lithographic printing plate manufacturing method, and lithographic printing method
A lithographic printing plate, original plate technology, applied in lithographic printing equipment, printing surface preparation, printing, etc., to achieve the effect of excellent ink retention
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Embodiment 1~ Embodiment 33 and comparative example 1~ comparative example 3
[1001]
[1002] The lithographic printing plate precursors of Examples 1 to 33 and Comparative Examples 1 to 3 were prepared by the following methods.
[1003] On the aluminum support described in Table 4 or Table 6, the dry coating amount is 20 mg / m 2 The undercoat layer coating solution described below was applied in the same manner to form an undercoat layer. On the undercoat layer, the following image recording layer coating solution (1) was bar-coated, and dried at 120° C. for 40 seconds to form a dry coating weight of 1.0 g / m 2 image recording layer.
[1004] Regarding a lithographic printing plate precursor having a protective layer (described as "non-outermost layer (with OC)" in the column of the position of the image recording layer in Table 3 or Table 5), the following protective layer was bar-coated on the image recording layer coating solution, and dried at 120°C for 60 seconds to form a dry coating weight of 0.15g / m 2 protective layer.
[1005]
[1006] A...
Embodiment 34~ Embodiment 39
[1134]
[1135] As the undercoat layer coating liquid, the coating liquid described in Table 8, the hydrophilic compound described in Table 8 and its addition amount were used. The infrared absorber of the counter anion described in , the electron-accepting polymerization initiator with the counter anion described in Table 8, the polymerizable compound described in Table 8, and the coupler described in Table 8, in addition , In the same manner as in Example 23, the lithographic printing plate precursors of Examples 34 to 39 were produced, respectively.
[1136]
[1137] Luxel PLATESETTER T-6000III manufactured by Fujifilm Corporation equipped with an infrared semiconductor laser, under the conditions of outer drum rotation speed 1,000rpm (revolutions per minute), laser output 70%, and resolution 2,400dpi (dot per inch) The obtained lithographic printing plate precursor was exposed. After the exposure treatment, the obtained lithographic printing plate was scratched by a s...
Embodiment 40~ Embodiment 45
[1152]
[1153] The lithographic printing plate precursors of Examples 40 to 45 were prepared by the following methods.
[1154] On the aluminum supports described in Table 10, the dry coating amount was 20 mg / m 2 The above-mentioned undercoat layer coating liquid was applied in a manner to form an undercoat layer. The following image recording layer coating solution (2) was bar-coated on the undercoat layer, and dried at 120°C for 40 seconds to form a dry coating weight of 1.0g / m 2 image-recording layer, thereby obtaining a lithographic printing original plate.
[1155] Using the obtained planographic printing plate precursor, various evaluations were performed in the same manner as in Example 23. Table 10 shows the evaluation results.
[1156]
[1157] ・Addition polymerization type resin described in Table 9: 0.240 parts (the amount that becomes the amount described in Table 9 in the obtained image recording layer)
[1158] ・Infrared absorber having a counter anion d...
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