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Anticurling agent, ink jet ink, method for ink jet recording and method for reducing curling

A technology of reducing agent and curling, applied in the directions of ink, application, and roll-resistant paper, etc., can solve the problem of inconvenience in saving recorded products, and achieve the effect of easy handling and curly suppression.

Inactive Publication Date: 2006-02-08
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Curl may occur immediately after printing, but it may also appear curled over time and eventually turn into a tube, which brings significant inconvenience to users for keeping records

Method used

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  • Anticurling agent, ink jet ink, method for ink jet recording and method for reducing curling
  • Anticurling agent, ink jet ink, method for ink jet recording and method for reducing curling
  • Anticurling agent, ink jet ink, method for ink jet recording and method for reducing curling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2～11、 comparative example 1 and 2

[0090] In the same manner as in Example 1, using the compounds shown in Table 2, the inks of Examples 2 to 11 and Comparative Examples 1 and 2 were obtained.

Embodiment 12

[0092] Preparation of yellow ink

[0093] A styrene-acrylic acid copolymer (Joncryl 678, manufactured by Jiyon Sompolima Co., Ltd.) was mixed with a prescribed amount of sodium hydroxide and water necessary to neutralize them. Furthermore, these were stirred and mixed with heat-retaining at about 60 degreeC, and the 10% styrene-acrylic acid copolymer aqueous solution was obtained.

[0094] Then, the following ingredients were mixed, stirred for 30 minutes, and then dispersed under the following conditions.

[0095] 30 parts of 10% aqueous solution of styrene-acrylic acid copolymer

[0096] ·Pigment Yellow-74 10 parts

[0097] ·60 parts of ion-exchanged water

[0098] · Dispersing machine: sand mill (manufactured by Aimex Co., Ltd.)

[0099] ·Grinding medium: zirconium flakes with a diameter of 1mm

[0100] ·Filling rate of crushing medium: 50% (volume ratio)

[0101] ·Crushing time: 3 hours

[0102] Further, centrifugation treatment (12000 rpm, 20 minutes) was performed...

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Abstract

A curl reducing agent containing an amide compound having specified structure and molecular weight, an inkjet ink containing such an amide compound, an inkjet recording method for recording an image by ejecting such an ink, and a method for reducing curl of a recording medium employing such an ink. Variation in the shape of a sheet, i.e. curling phenomenon, occurring as time elapses after recording, especially when ink is imparted to the entire surface of a plain sheet, can be reduced without lowering the image quality.

Description

technical field [0001] The present invention relates to a curl reducing agent, an inkjet ink containing the curl reducing agent, an inkjet recording method for recording an image by ejecting the ink, and curl of a recording medium using the ink reduction method. Background technique [0002] The inkjet recording method is a recording method in which ink droplets are flown and directly adhered to some kind of absorbent medium such as paper to record. Since they are small and inexpensive, they are widely used as output devices for personal computers used in homes and offices. In addition, the inkjet recording method is suitable as a recording method for high-speed recording of high-resolution and high-quality images. [0003] The ink used here generally contains water as the main component, and contains a colorant and a polar solvent such as glycerin in order to reduce the fixation on the fine nozzles. The ink also has the advantages of no odor and high ignition point, but b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/14C09D11/00B41J2/01C09D11/38
Inventor 下村真子野口弘道新庄健司仓林丰一之瀬博文河部美奈子
Owner CANON KK
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