Liquid composition for ink jet, ink set for ink jet, ink jet recording method and ink jet recording apparatus
A technology of liquid composition and ink set, applied in the direction of copying/marking method, ink, application, etc., which can solve the problems of stability and impossibility at the same time
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Examples
Embodiment 1-1～1-5 and comparative example 1-1～1-5
[0324] Printing was performed using the ink sets shown in Tables 1 and 2. Printing was performed by jetting the second liquid (liquid composition for inkjet) onto FX-P paper ( produced by Fuji Xerox Co., Ltd.), and the first liquid (liquids 1 to 4 in the table) was sprayed thereon. The printing is carried out in a normal environment (temperature is 23±0.5° C., humidity is 55±5% R.H (relative humidity)), and the mass ratio of the first liquid and the second liquid used to form one pixel is set to 1:0.2. according to Figure 5 Printed patterns A to C shown in ~7 were evaluated on samples left in a normal environment for 24 hours after printing (excluding drying time and long-term storage stability).
[0325] "Optical Density"
[0326] The optical density of the printed portion of each printed pattern was measured using X-Rite 404 (manufactured by X-Rite Co., Ltd.). In the case where the printed part of any printed pattern does not meet the criteria, it will be set as a "lower...
Embodiment 2-1～2-5 and comparative example 2-1～2-5
[0504] By using the ink sets shown in Tables 1 to 2, printing and evaluation were performed in the same manner as in Examples 1-1 to 1-5 and Comparative Examples 1-1 to 1-5.
[0505]
[0506] The evaluation results are summarized in Table 7 and Table 8. As shown in Table 7 and Table 8, optical density, blurring, intercolor blurring, drying time, and long-term storage stability are excellent in Examples 2-1 to 2-5. In these examples, acid an organic acid with a dissociation constant pKa equal to or less than 4.5 and an organic amine compound, and applying both the first liquid and the liquid composition to the recording medium so that they are in contact with each other.
Embodiment 3-1
[0508] Printing was performed in the same manner as in Examples 1 and 2 by using the liquid composition 3-A in Table 9 and the ink set. The results are summarized in Table 10.
[0509] (Liquid 3-A)
[0510] -composition-
[0511] ●Diethylene glycol: 30% by mass
[0512] 2-furancarboxylic acid (pKa=2.41): 5% by mass
[0513] ●Magnesium nitrate hexahydrate: 4% by mass
[0514] ●Sodium hydroxide: 1.1% by mass
[0515] ●Triethanolamine: 1% by mass
[0516] Acetylene glycol ethylene oxide adduct: 1% by mass
[0517] ●Ion-exchanged water: balance
[0518] The liquid had a pH of 3.8, a surface tension of 31 mN / m, and a viscosity of 3.2 mPa·s. Each physical property value is measured at 20°C.
[0519]
[0520]
[0521] [Table 7]
[0522] optical density
[0523] [Table 8]
[0524] optical density
[0525]
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Abstract
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