Ink cleaning liquid

A technology of washing liquid and surfactant, applied in the field of washing liquid for ink, can solve problems such as nozzle clogging, and achieve the effects of inhibiting aggregation, excellent washing ability, and not easy to corrode

Inactive Publication Date: 2011-08-31
MIMAKI ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, ink agglomerates or dried solids can cause problems such as clogging of nozzles, confusion of characters or images, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] As the cleaning liquid for ink of Example 1 (hereinafter, described as "washing liquid A for ink" according to the case.), prepare and add acetylenic diol (manufactured by Air Products and Chemicals. Inc., trade name: Surfynol 104DPM) Ethylene glycol monobutyl ether acetate. The content of acetylenic diol in the ink washing liquid A was 1.0% by mass relative to the total mass of the ink washing liquid.

[0059] 2 g of ink cleaning solution A and 40 g of ion-exchanged water were stirred for 5 minutes with a stirrer to obtain mixed solution A1.

[0060] After the mixed liquid A1 was filtered with a filter, the pH of the mixed liquid A1 was measured with a pH meter. The results are shown in Table 1.

[0061] Next, thermally accelerated deterioration treatment is performed on the filtered mixed liquid A1. In the heat-accelerated deterioration treatment, the mixed liquid A1 was kept for 12 days in an environment with a temperature of 60° C. and a humidity of 45%. This he...

Embodiment 2a

[0073] Prepare a BS ink containing a pigment, ethylene glycol monobutyl ether acetate as a main solvent, and a dispersant. The BS ink was mixed with the ink washing liquid A to prepare a mixed liquid A2. The mass ratio of the BS ink contained in the mixed liquid A2 to the ink washing liquid A was 1:9.

[0074] The average volume particle size MV, the average number average particle size MN, the average area particle size MA of the particle group contained in the mixed solution A2, and the accumulation time from the small particle size side in the particle size distribution based on the volume of the particle group are respectively measured. Particle diameter D50 at which the cumulative rate is 50%. The measurement results are shown in Table 2. A particle size analyzer (MICROTRAC UPA-EX150) manufactured by Nikkiso Co., Ltd. was used for the measurement of each particle diameter.

[0075] Next, in the same manner as in Example 1, the thermally accelerated degradation treatmen...

Embodiment 2b

[0083] Except for mixing the BS ink and the ink cleaning solution A at a mass ratio of 1:1, the MV, MN, MA, D50 and their values ​​before and after the heat-accelerated degradation treatment were obtained for the mixed solution A2 by the same method as in Example 2a. rate of change. The results are shown in Table 3.

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PUM

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Abstract

Disclosed is an ink cleaning liquid containing ethylene glycol monobutyl ether acetate and a surfactant.

Description

technical field [0001] The invention relates to an ink washing solution. Background technique [0002] In an inkjet recording device, while moving a recording medium such as a sheet or cloth on a platen, or moving a carriage on which a printing head is mounted on a recording medium mounted on a platen, the inkjet head is The nozzle provided at the bottom ejects ink. The ejected ink lands on a predetermined portion of the recording medium in the form of dots. In this manner, characters and images are formed by the collection of dot-shaped inks that have landed on the recording medium. [0003] In the inkjet recording device described above, since ink is ejected from nozzles having micrometer-sized openings, aggregates or dry solids of ink tend to adhere to the vicinity of the tip of the nozzle or in the flow path of the ink. In addition, ink aggregates or dried solids cause problems such as clogging of nozzles, disorder of characters or images, and the like. In order to p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D3/43B41J2/165C09D9/04C11D1/68C11D17/08
CPCB41J2/16552C11D3/2093C09D9/04C11D3/43C11D1/66C11D17/08
Inventor 三石朋子山田竜二
Owner MIMAKI ENG
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