Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Dispersion liquid of colored resin fine particles for aqueous inks, and aqueous ink composition for writing utensils using same

A fine-grained, water-based ink technology, applied in home appliances, inks, applications, etc., can solve problems such as non-existence, and achieve the effect of improving the dryness of tracing lines

Pending Publication Date: 2017-12-01
MITSUBISHI PENCIL CO LTD
View PDF13 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Each of the coloring materials described in the above-mentioned Patent Documents 1 to 4 has excellent effects in terms of color rendering, weather resistance, stability, etc., but there is no information on performances other than the above-mentioned effects.

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
  • Dispersion liquid of colored resin fine particles for aqueous inks, and aqueous ink composition for writing utensils using same
  • Dispersion liquid of colored resin fine particles for aqueous inks, and aqueous ink composition for writing utensils using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 to 17 and comparative example 1 to 4

[0075] Dispersions of colored resin fine particles for each aqueous ink were prepared in Examples 1 to 17 and Comparative Examples 1 to 4 by the following production methods.

Embodiment 1

[0077] A 2-liter flask equipped with a stirrer, a reflux condenser, a thermometer, a nitrogen inlet tube, and a 1000-ml separatory funnel for adding monomers was placed in a hot water bath, and 500 g of distilled water, 50 g of a polymerizable surfactant (ADECA REASOAPSE-10N, manufactured by ADECA CORPORATION) and 3 g of ammonium persulfate, and heated to an internal temperature of 50° C. while introducing nitrogen gas.

[0078] On the other hand, 40 g of a water-soluble basic dye (AIZEN CTVTHILON RED BLH200%, manufactured by Hodogaya Chemical Co., Ltd.) was mixed with 300 g of 2-methacryloxyethyl phthalate (AcrylEster PA, Solubility in water: 0.08% by mass, manufactured by Mitsubishi Rayon Co., Ltd.) 500 g of mixed monomers as component (A) and 200 g of n-butyl methacrylate as component (B) were mixed to prepare a solution.

[0079] The above-prepared solution was added from a separatory funnel into a flask maintained at a temperature of about 50° C. under stirring within 3 h...

Embodiment 2

[0081] A dispersion of colored resin fine particles for aqueous ink was obtained in the same manner as in Example 1 above except that in Example 1, 150 g of n-butyl acrylate was used as the component (B).

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
The average particle sizeaaaaaaaaaa
Login to View More

Abstract

Provided are: a dispersion liquid of colored resin fine particles for aqueous inks, which has a property for improving drawn line dryability in addition to colorant functions such as color developability, weather resistance and stability; and an aqueous ink composition for writing utensils, which uses this dispersion liquid of colored resin fine particles for aqueous inks. This dispersion liquid of colored resin fine particles for aqueous inks is characterized by being obtained by dispersing colored resin fine particles in water, said colored resin fine particles being configured at least of (A) a vinyl monomer that contains a carboxyl group as an acidic functional group and has a solubility in water of 10% by mass or less, (B) an ester monomer of an acrylic acid or methacrylic acid and a linear or cyclic alcohol having 2-18 carbon atoms, and a basic dye or an oil-soluble dye. In addition, this aqueous ink composition for writing utensils is characterized by containing: a dispersion liquid of colored resin fine particles for aqueous inks having the above-described composition; a water-soluble organic solvent; and water.

Description

technical field [0001] The present invention relates to a dispersion liquid of colored resin fine particles for aqueous ink, which has improved drying properties of the drawn lines in addition to properties of colorants such as color developability, weather resistance, and stability ), and an aqueous ink composition for writing implements prepared by using the dispersion and suitable for writing implements such as felt-tip pens, marker pens and ballpoint pens. Background technique [0002] Hitherto, it has been known that a resin emulsion having a specific polymer composition colored with a dye is used as a colorant called a quasi-pigment. [0003] Known, for example, 1) an aqueous dispersion of colored resin fine particles for aqueous ink, which is obtained by dissolving a water-soluble basic dye in a vinyl monomer having an acidic functional group in the presence of a polymerizable surfactant; 2) an aqueous dispersion of colored resin fine particles for ink, which is prep...

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): C09D11/16C09B67/46
CPCC09D11/17C09B69/10C09D11/16
Inventor 羽贺久人岩佐敦
Owner MITSUBISHI PENCIL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
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