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Inkjet recording medium and ink set, and inkjet recording method

一种喷墨记录介质、记录介质的技术，应用在复制/标记方法、油墨、涂层等方向，能够解决没有如低定影性能和起皱、高图像密度、难以获得等问题

Inactive Publication Date: 2013-01-02
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, available media are limited to films with high air permeability, i.e. high ink receptivity, and require treatment to provide the film with a solvent absorbing layer on one side and an ink receiving layer on the opposite side
[0010] Therefore, it is difficult to obtain a recorded material having a high image density on the above-mentioned recording medium and free from the above-mentioned problems such as low fixing performance and wrinkling

Method used

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  • Inkjet recording medium and ink set, and inkjet recording method
  • Inkjet recording medium and ink set, and inkjet recording method
  • Inkjet recording medium and ink set, and inkjet recording method

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0422] Preparation of Aqueous Solution A of Waterborne Polymer

[0423] α-olefin-maleic anhydride (T-YP112, olefin chain (R) represented by chemical structure 2 having an acid value of 190 mgKOH / g and a weight-average molecular weight of 10,000: number of carbon atoms: 20 to 24, corresponding to An alkyl group having 18 to 22 carbon atoms in R of II, manufactured by SEIKO PMC CORPORATION): 10 parts

[0424] 1 normality LiOH aqueous solution (having an acid value 1.2 times that of the α-olefin-maleic anhydride copolymer represented by chemical structure 1): 17.34 parts

[0425] · Deionized water: 72.66 parts

[0426] The mixture of the above-indicated formulation was heated and stirred to dissolve α-olefin-maleic anhydride represented by chemical structure 2, followed by filtering trace insoluble matter with a filter having an average opening of 5 μm to prepare an aqueous polymer solution A.

preparation Embodiment 2

[0428] Preparation of liquid dispersions of surface-treated black pigments

[0429] Will 90g have 150m 2 Carbon black having a specific surface area of ​​CTAB / g and a DBP oil absorption of 100ml / 100g was added to 3,000ml of a 2.5N sodium sulfate solution, and an oxidation treatment reaction was performed by stirring at 300rpm at 60°C for 10 hours.

[0430] The reaction solution was filtered and the filtered carbon black was neutralized by sodium hydroxide, followed by ultrafiltration.

[0431] The carbon black thus obtained was washed with water. Carbon black was dried and dispersed in pure water so that the solid portion of carbon black was 30% by weight, followed by sufficient stirring to obtain a liquid dispersion of a black pigment.

[0432] The average particle diameter (D50) of the pigment dispersion in this black pigment liquid dispersion was 103 nm. The average particle diameter (D50) is measured by a particle size distribution measuring instrument (Nanotrac UPA-EX-...

preparation Embodiment 3

[0434] Preparation of liquid dispersions of polymer particles comprising magenta pigments

[0435] Preparation of polymer solution A

[0436] After being fully replaced with nitrogen in a flask equipped with a mechanical stirrer, a thermometer, a nitrogen introduction tube, a reflux tube, and a dropping funnel, 11.2 g of styrene, 2.8 g of acrylic acid, and 12.0 g of lauryl methacrylate were mixed in the flask. ester, 4.0 g of polyethylene glycol methacrylate, 4.0 g of styrene macromer and 0.4 g of mercaptoethanol and heated the system to 65 ° C, and dropped 100.8 g of styrene in the flask within 2.5 hours , 25.2g of acrylic acid, 108.0g of lauryl methacrylate, 36.0g of polyethylene glycol methacrylate, 60.0g of hydroxyethyl methacrylate, 36.0g of styrene macromonomer, 3.6g of A mixture of mercaptoethanol, 2.4 g of azobisdimethylvaleronitrile, and 18 g of methyl ethyl ketone.

[0437] Subsequently, a liquid mixture of 0.8 g of azobisdimethylvaleronitrile and 18 g of methyl et...

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Abstract

A inkjet recording medium and ink set including ink containing water, a hydrosoluble organic solvent comprising an amide compound represented by the following Chemical Structure 1, a surface active agent; and a coloring agent, and a recording medium containing a substrate; and a coated layer on at least one side of the substrate, wherein the transfer amount of pure water to the recording medium having the coated layer is 2 ml / m 2 to 35 ml / m 2 during a contact time of 100 ms and 3 ml / m 2 to 40 ml / m 2 during a contact time of 400 ms when measured by a liquid dynamic absorption tester at 23 DEG C and 50%RH:.

Description

technical field [0001] The present invention relates to an inkjet recording medium and ink set and an inkjet recording method. Background technique [0002] Inkjet recording is known to be an excellent recording method capable of providing a relatively wide selection of recording media. Therefore, research and development of new recording apparatuses, recording methods, recording materials, etc. continue to be extensively performed. [0003] In particular, pigment inks using pigments as colorants have been proposed as inks for inkjet recording. Pigmented inks are preferred over inks that use dyes as colorants when it comes to printing less blurry images on plain paper because of their superior image density, water resistance, and weathering resistance. [0004] However, for recording media with coatings, especially media with poor ink receptivity, images produced with pigmented inks have poor color and gloss. [0005] In addition, it takes time to dry the ink, causing pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/02B41M5/00B41J2/01B41M5/50B41M5/52C09D11/00C09D11/322C09D11/324C09D11/326C09D11/38
CPCB41M5/5218B41M5/52C09D11/38C09D11/328C09D11/30B41M5/5227C09D11/326C09D11/40C09D11/322C09D11/02
Inventor 长岛英文后藤宽
Owner RICOH KK
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