Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Recording ink as well as ink media set, ink cartridge, ink recorded matter, inkjet recording apparatus and inkjet recording method

An inkjet recording method and ink technology, applied in inks, applications, household appliances, etc., can solve the problems of low density on the back, inability to obtain images, slow drying, etc., and achieve low density on the back, good color rendering, and high image density Effect

Inactive Publication Date: 2008-01-02
RICOH KK
View PDF17 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in the example, the amount of humectant in the ink is large, and the solid content is less than 10% by mass. Therefore, it can be inferred that if the heat drying is not performed, the drying will be very slow, and a clean image cannot be obtained.
That is, the solid content of "ink sample 1" described in the above-mentioned Japanese Patent Laid-Open No. 2000-44858 is calculated to be 11% by mass. Although it exceeds 10% by mass, the resin contains a dispersant polymer and is not an emulsion type. , so it can be speculated that a large amount of resin cannot be added
[0018] Therefore, the current situation is that for printing on plain paper, images with high image density, low back density, good color development, and no stains can be obtained, and even for printing paper or plastic films that are smooth and have low water absorption capacity, Non-porous substrates such as plastic-laminated paper and plastic-coated paper have no problem in drying speed, and recording inks that can obtain vivid images close to printed matter, and the use of this recording ink, even when it is not used for a long time Inkjet recording methods, etc., where nozzle clogging occurs, have not yet provided a technology that can sufficiently satisfy the required performance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Recording ink as well as ink media set, ink cartridge, ink recorded matter, inkjet recording apparatus and inkjet recording method
  • Recording ink as well as ink media set, ink cartridge, ink recorded matter, inkjet recording apparatus and inkjet recording method
  • Recording ink as well as ink media set, ink cartridge, ink recorded matter, inkjet recording apparatus and inkjet recording method

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0548] -Preparation of polymer solution A-

[0549]The interior of a 1 L flask equipped with a mechanical stirrer, a thermometer, a nitrogen introduction tube, a reflux tube and a dropping funnel was fully replaced with nitrogen, and then 11.2 g of styrene, 2.8 g of acrylic acid, 12.0 g of lauryl methacrylate, and 4.0 g of polyethylene were mixed. Ethylene glycol methacrylate, 4.0 g of styrene macromolecules and 0.4 g of mercaptoethanol, and the temperature was raised to 65°C. Next, 100.8 g of styrene, 25.2 g of acrylic acid, 108.0 g of lauryl methacrylate, 36.0 g of polyethylene methacrylate, 60.0 g of hydroxyethyl methacrylate, 36.0 g of A mixed solution of styrene macromolecule, 3.6 g mercaptoethanol, 2.4 g azodimethylvaleronitrile and 18 g methyl ethyl ketone. After the dropwise addition, a mixed solution of 0.8 g of azodimethylvaleronitrile and 18 g of methyl ethyl ketone was added dropwise to the flask over 0.5 hours. After aging at 65°C for 1 hour, 0.8 g of azodimethy...

manufacture example 1-1

[0551] -Preparation of Magenta Pigment Polymer Microparticle Aqueous Dispersion-

[0552] Next, 28 g of the obtained polymer solution A, 42 g of C.I. Pigment Red 122, 13.6 g of a 1 mol / L potassium hydroxide aqueous solution, 20 g of methyl ethyl ketone, and 13.6 g of ion-exchanged water were sufficiently stirred, and then kneaded with a roll mill. . The obtained slurry was put into 200 g of pure water, and after stirring sufficiently, methyl ethyl ketone and water were distilled off with an evaporator to prepare a magenta pigment polymerization of Production Example 1-1 containing 15 mass % of pigment and 20 mass % of solids. Aqueous dispersion of microparticles.

manufacture example 1-2

[0554] -Preparation of Cyan Pigment Polymer Microparticle Aqueous Dispersion-

[0555] A cyan pigment polymer fine particle aqueous dispersion of Production Example 1-2 was prepared in the same manner as in Production Example 1-1 except that C.I. Pigment Red 122 was replaced with a copper phthalocyanine pigment in Production Example 1-1. In addition, the solid content was 20 mass % and the pigment coloring agent was 12 mass % at the time of preparation.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Specific surface areaaaaaaaaaaa
The average particle sizeaaaaaaaaaa
Surface tensionaaaaaaaaaa
Login to View More

Abstract

A recording ink containing at least a solid component which contains a colorant and a resin and is a solid at 25 DEG C, a liquid component which has a higher boiling point than that of water and is a liquid at 25 DEG C and water, wherein the total content of the liquid component in the recording ink is 20% by mass or less, the total content of the solid component in the recording ink is 20% by mass or more, and the total content of a resin component in the solid component is 40% by mass to 95% by mass relative to a total amount of the solid component is provided.

Description

technical field [0001] The present invention relates to a recording ink suitable for inkjet recording, and an ink media set, an ink cartridge, an ink recorded matter, an inkjet recording apparatus, and an inkjet recording method using the same. Background technique [0002] The ink jet recording method is a method of printing by making small droplets of ink fly and adhere to a recording medium such as paper. As the ink used in this inkjet recording method, various dyes or pigments are generally used to dissolve or disperse colorants in water or water and a high-boiling organic solvent, and also contain a large amount of a high-boiling organic solvent for maintaining moisture retention. Wetting ink for organic solvents. This humectant, which contains a high boiling organic solvent, helps prevent drying of the nozzle due to its water retention capacity. However, when printing is performed on paper with a high penetration speed, such as plain paper, it is difficult for the hu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C09D11/10B41J2/175C09D11/30C09D11/32
Inventor 有贺保小谷野正行松山彰彦羽桥尚史后藤宽大嶋享诸星直哉永井希世文
Owner RICOH KK
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com