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Ink

A technology of ink and inkjet printing, applied in the direction of ink, duplication/marking method, printing, etc., can solve the problems of printing quality reduction, printing surface damage, etc., and achieve the effect of excellent rubbing resistance

Pending Publication Date: 2022-05-27
DIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when the above-mentioned single-sided printed matter is reversed, if the transport roller contacts the printed surface of the above-mentioned single-sided printed matter, it may damage the printed surface and cause a decrease in printing quality.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0101] 138 parts by mass of deionized water was put into a reaction vessel equipped with a stirrer, a reflux cooling tube, a nitrogen introduction tube, a thermometer, and a dropping funnel, and the temperature was raised to 80° C. while blowing in nitrogen gas.

[0102] Next, 2 parts by mass of methacrylic acid, 2 parts by mass of sodium styrene sulfonate, and 0.05 part by mass of thiomalic acid were added, and 5 parts by mass of a 10 mass % aqueous sodium persulfate solution was added at 80° C. to initiate polymerization.

[0103] After the temperature in the polymerization vessel was maintained at 80° C. for 1 hour, the contents of the polymerization vessel were cooled, and ammonia water was mixed to obtain an aqueous solution (I-1) of the polymer (A-1).

[0104] Next, 50 parts by mass of n-butyl acrylate, 30 parts by mass of methyl methacrylate, and methyl methacrylate were added dropwise to the aqueous solution (I-1) of the polymer (A-1) adjusted to 80° C. over 4 hours. 1...

Embodiment 2

[0116] 138 parts by mass of deionized water was put into a reaction vessel equipped with a stirrer, a reflux cooling tube, a nitrogen introduction tube, a thermometer, and a dropping funnel, and the temperature was raised to 80° C. while blowing in nitrogen gas.

[0117] Next, 4.5 parts by mass of methacrylic acid, 5.6 parts by mass of sodium styrene sulfonate, and 0.15 part by mass of thiomalic acid were added, and 5 parts by mass of a 10 mass % ammonium persulfate aqueous solution was added at 80° C. to initiate polymerization.

[0118] After the temperature in the polymerization vessel was maintained at 80° C. for 1 hour, the contents of the polymerization vessel were cooled, and ammonia water was mixed to obtain an aqueous solution (I-2) of the polymer (A-2).

[0119] To the aqueous solution (I-2) of the above-mentioned polymer (A-2), 40 parts by mass of ethyl acrylate, 30 parts by mass of methyl methacrylate and 30 parts by mass of 2-hydroxyethyl methacrylate were added dr...

Embodiment 3

[0125] 138 parts by mass of deionized water was put into a reaction vessel equipped with a stirrer, a reflux cooling tube, a nitrogen introduction tube, a thermometer, and a dropping funnel, and the temperature was raised to 80° C. while blowing in nitrogen gas.

[0126] Next, 4.5 parts by mass of methacrylic acid, 5.6 parts by mass of sodium styrene sulfonate, and 0.15 part by mass of thiomalic acid were added, and 5 parts by mass of a 10 mass % ammonium persulfate aqueous solution was added at 80° C. to initiate polymerization.

[0127] After the temperature in the polymerization vessel was maintained at 80° C. for 1 hour, the contents of the polymerization vessel were cooled, and ammonia water was mixed to obtain an aqueous solution (I-3) of the polymer (A-3).

[0128] To the aqueous solution (I-3) of the above-mentioned polymer (A-3), 32 parts by mass of ethyl acrylate, 23 parts by mass of n-butyl acrylate, 5 parts by mass of methyl methacrylate and methacrylic acid were ad...

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Abstract

The present invention addresses the problem of providing an ink which can be mainly used for ink jet printing and which can produce a printed matter having excellent friction resistance and high color emissivity even when the drying time after printing is short. The present invention relates to an ink which is obtained by dispersing a polymer (A) having a carboxyl group and a structure derived from styrene sulfonic acid represented by general formula (1) in water (C), and which is characterized by being obtained by dispersing a polymer (B) different from the polymer (A).

Description

technical field [0001] The present invention relates to inks that can be used in various printing methods including, for example, ink jet printing. Background technique [0002] Inkjet printers are used for printing on various recording media typified by plain paper, for example. As an ink that can be used for printing using the above-described inkjet printer, for example, an ink characterized by an ink containing a pigment, a binder resin, a particulate wax, a moisturizing agent, and water, wherein the wax is known The particle size is a small particle size smaller than the thickness of the dry ink layer formed on the recording surface of the ink, and the particle size is 0.58 to 3 μm (for example, refer to Patent Document 1). [0003] On the other hand, as an ink jet printer, a printer capable of printing on both sides of a recording medium such as paper is widely known. [0004] The above-mentioned double-sided printing is often performed as follows: for example, after ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/30
CPCC09D11/30C09D11/107C09D11/106C09D11/322
Inventor 山口征志饭笹久美子
Owner DIC CORP
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