Binder for jet printing inks, jet printing inks containing same, and printed matter

An inkjet printing and adhesive technology, applied in printing, ink, application and other directions, can solve the problems of fading, deterioration and damage of printed images, and achieve the effect of good storage stability, high-definition and bright printed images

Inactive Publication Date: 2012-05-02
DIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, as inkjet printed matter is widely used and a higher level of rub resistance is required, in the case of a printed image formed using the inkjet recording ink described above, when an extremely strong external force is applied, etc., Still sometimes cause fading, deterioration and damage of the printed image due to the peeling off of the pigment

Method used

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  • Binder for jet printing inks, jet printing inks containing same, and printed matter
  • Binder for jet printing inks, jet printing inks containing same, and printed matter
  • Binder for jet printing inks, jet printing inks containing same, and printed matter

Examples

Experimental program
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Effect test

Embodiment

[0127] Hereinafter, the present invention will be described more specifically using examples and comparative examples.

Synthetic example 1

[0128] [Synthesis Example 1] Preparation of Organic Solvent Solution (a1-1) of Hydrophilic Group-Containing Polyurethane

[0129] 376 parts by mass of polyoxytetramethylene glycol (PTMG-2000 manufactured by Mitsubishi Chemical Co., Ltd.) with a number average molecular weight of 2000 was added to a reaction vessel equipped with a stirrer, a thermometer, a dropping funnel, a condenser tube, and a nitrogen inlet. 93 parts by mass of isophorone diisocyanate (IPDI) was heated up to 100° C. and reacted at the same temperature for 1 hour.

[0130] Next, the temperature was lowered to 80° C., 31 parts by mass of dimethylolpropionic acid (DMPA) and 269 parts by mass of methyl ethyl ketone (MEK) were put into the above-mentioned reaction vessel, and then reacted at 80° C. for 5 hours, and then, 231 parts by mass of isopropanol (IPA) was dropped into the above-mentioned reaction vessel and diluted to obtain an organic solvent solution (a1-1) of 50 mass % of non-volatile components of po...

Synthetic example 2

[0131] [Synthesis Example 2] Preparation of Organic Solvent Solution (a1-2) of Hydrophilic Group-Containing Polyurethane

[0132] Add polycarbonate polyol with a number average molecular weight of 2000 having a 1,6-hexanediol skeleton (manufactured by Ube Industries, Ltd.) UH-200) 376 parts by mass and 93 parts by mass of isophorone diisocyanate were heated up to 100° C. and reacted at the same temperature for 1 hour.

[0133] Next, the temperature was lowered to 80° C., and 31 parts by mass of dimethylolpropionic acid (DMPA) and 269 parts by mass of methyl ethyl ketone (MEK) were charged into the reaction vessel, followed by further reaction at 80° C. for 5 hours.

[0134] Next, 231 parts by mass of isopropyl alcohol (IPA) was poured into the above-mentioned reaction vessel for dilution to obtain an organic solvent having a weight-average molecular weight of 36,000 and a hydrophilic group-containing polyurethane with a non-volatile content of 50% by mass. Solution (a1-2).

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Abstract

The invention provides a binder for jet printing inks which comprises (A) a polysiloxane, (B) a polyurethane that contains hydrophilic groups, and (C) a water-based medium, and is characterized in that the polysiloxane (A) and the polyurethane (B) together form composite resin particles, and the polysiloxane (A) is thus dispersed in the water-based medium (C) by virtue of the polyurethane (B). A jet printing inks and printed matter are also provided.

Description

technical field [0001] The present invention relates to a binder usable in ink for inkjet printing and an ink for inkjet printing comprising the binder. Background technique [0002] In recent years, in the inkjet printing-related industries that have developed significantly, the performance of inkjet printers and the improvement of inks have been rapidly developed, and even ordinary households can easily obtain high gloss and high fine images. [0003] Among them, for inks, the improvement of high image quality and reduction of environmental load such as moving from the current dye ink to pigment ink or from solvent system to water system is rapidly progressing. Currently, the following are actively being carried out. Ink development based on water-based pigment ink. [0004] In addition, with regard to the above-mentioned ink, along with the high performance of inkjet printers, etc., a higher level of performance is required every year. There is a strong demand for scra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/00B41J2/01B41M5/00C09D11/322
CPCC09D11/326C09D11/322C09D11/102C09D11/30B41J2/01
Inventor 永浜定栗山千里
Owner DIC CORP
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