Inkjet recording method and inkjet recording medium

An inkjet recording method, inkjet recording medium technology, applied in the direction of copying/marking method, ink, coating, etc., can solve the problems of time-consuming, poor fixability, slow absorption of liquid components, etc., and achieve excellent dryness, high ink The effect of liquid discharge and high printing density

Active Publication Date: 2019-05-17
NIPPON PAPER IND CO LTD +1
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is known that when printing is performed on this low-absorbency recording medium by the inkjet recording method, since the absorption of the liquid component is slow, it takes time to dry, and the fixability at the initial stage of printing is poor.
It is also known that, unlike plain paper and uncoated paper in which pigments permeate into the paper, low-absorbency recording media such as coated paper leave pigment particles on the paper and receive external force directly, so the fixability after drying is also poor.

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
  • Inkjet recording method and inkjet recording medium
  • Inkjet recording method and inkjet recording medium
  • Inkjet recording method and inkjet recording medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0243] Hereinafter, the present invention will be more specifically described using examples and the like. In the following examples and the like, various physical properties were measured by the following methods. In addition, "parts" and "%" are "parts by mass" and "% by mass" unless otherwise indicated.

[0244] (1) Determination of the weight-average molecular weight of the water-insoluble polymer

[0245] With N,N-dimethylformamide respectively according to the concentration of 60mmol / L and 50mmol / L dissolved in the solution of phosphoric acid and lithium bromide as the eluent, using gel permeation chromatography [GPA device manufactured by Tosoh Co., Ltd. ( HLA-8120GPA), Tosoh Corporation column (TSK-GEL, α-M×2 pieces), flow rate: 1 mL / min] The molecular weight of the water-insoluble polymer was measured. In addition, as a standard substance, the monodisperse polystyrene of known molecular weight was used.

[0246] (2) Determination of solid content concentration of a...

manufacture example I

[0253] Production example 1 (production of water-insoluble polymer (a-1) solution)

[0254] In the reaction vessel that possesses 2 dropping funnels 1 and 2, add the monomer, solvent, polymerization initiator (2,2'-azobis(2,4 -Dimethylvaleronitrile)) (manufactured by Wako Pure Chemical Industries, Ltd., trade name: V-65B) and polymer chain transfer agent (2-mercaptoethanol) (manufactured by Kishida Chemical Co., Ltd.) were mixed and replaced with nitrogen to obtain Initially put into the monomer solution.

[0255] Next, the monomer, solvent, polymerization initiator, and polymerization chain transfer agent shown in the "dropping monomer solution 1" of Table 1 are mixed to obtain the dropping monomer solution 1, which is added to the dropping funnel 1, Nitrogen replacement was performed. In addition, the monomer, solvent, polymerization initiator, and polymerization chain transfer agent shown in the "dropping monomer solution 2" of Table 1 were mixed to obtain the dropping mo...

manufacture example II

[0263]Production example II (production of water-insoluble polymer a-2 solution)

[0264] In the "Initial Input Monomer Solution" described in Table 1 of Production Example 1 above, except that BLEMMER PP1000 was replaced by NKESTER TM-40G, water was obtained as shown in Table 2 according to the production method described in Production Example 1. Insoluble polymer (a-2) solution (polymer solid content concentration: 36%). The weight average molecular weight of the water-insoluble polymer (a-2) was 67,000.

[0265] 【Table 2】

[0266]

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
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to view more

Abstract

The present invention provides an inkjet recording method that is excellent in dischargeability and drying property of ink, has high fixability and high color development property, and has an offset printing type feel. In this inkjet recording method, an aqueous pigment ink is used to print an inkjet recording medium having an ink receiving layer comprising an inorganic pigment, starch and copolymer latex on a substrate, and the ink receiving layer contains 10 g of / m 2 More than 35g / m 2 The following inorganic pigments, the content of calcium carbonate in the inorganic pigment is not less than 80% by mass and not more than 100% by mass, the content of silicon dioxide is not less than 0% by mass and not more than 10% by mass, and the inkjet ink contains a self-dispersing pigment and One or more kinds of pigments in water-insoluble polymer particles containing pigments, water-soluble organic solvent A with a boiling point of 230°C or lower: 10% by mass to 48% by mass, water-soluble organic solvent B with a boiling point of 280°C or higher: 0% by mass to 5.0% by mass, and water: 42% by mass to 70% by mass.

Description

technical field [0001] The present invention relates to an inkjet recording method and an inkjet recording medium. Background technique [0002] In the inkjet recording method, droplets of inkjet ink are directly discharged from very fine nozzles onto a recording medium and adhered to obtain characters or images. This method is widely used because it has many advantages, such as being easy to realize full-color printing, being inexpensive, being able to use plain paper as a recording medium, and not contacting a printed object. In addition, recently, pigments are widely used as colorants of inkjet inks in order to impart weather resistance and water resistance to printed matter. [0003] On the other hand, high-speed printing on recording media intended for commercial printing using low liquid-absorbent coated paper such as offset coated paper is required. It is known that, when printing is performed on such a low-absorbency recording medium by an inkjet recording method, ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B41M5/00B41J2/01B41M5/50B41M5/52C09D11/30
CPCB41M5/52B41M5/5218B41M5/5236B41M5/5254C09D11/10C09D11/106C09D11/322C09D11/38B41M2205/34B41M5/0035C09D11/033B41M5/0023C09D11/02C09D11/037B41M5/5227C09D11/30B41J2/01B41M5/502
Inventor 久津轮幸二中野正晶植田泰史福田辉幸光吉要铃木启之
Owner NIPPON PAPER IND 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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap