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Near-infrared-curable ink composition, near-infrared-curable film, method for producing them, and optical modeling method

An ink composition, near-infrared technology, applied in the direction of ink, processing and manufacturing, manufacturing tools, etc., can solve problems such as hindering curing

Active Publication Date: 2022-06-07
SUMITOMO METAL MINING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when UV absorbers are added to UV-curable inks or coatings, there is a technical problem of hindering curing by UV irradiation.

Method used

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  • Near-infrared-curable ink composition, near-infrared-curable film, method for producing them, and optical modeling method
  • Near-infrared-curable ink composition, near-infrared-curable film, method for producing them, and optical modeling method
  • Near-infrared-curable ink composition, near-infrared-curable film, method for producing them, and optical modeling method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0300] Dissolve cesium carbonate (Cs 2 CO 3 ) 7.43kg to obtain a solution. This solution was added to tungstic acid (H 2 WO 4 ) 34.57kg and mix well with stirring, then stir and dry (the molar ratio of W to Cs is equivalent to 1:0.33). N is supplied to the dried product 2 5 vol% H with gas as carrier 2 The gas was fired at a temperature of 800°C for 5.5 hours while heating, and thereafter, the supply gas was switched to N only 2 The gas was cooled to room temperature to obtain composite tungsten oxide particles (hereinafter referred to as particles a).

[0301] A mixture was obtained by mixing 20 parts by mass of particles a, 65 parts by mass of methyl isobutyl ketone, and 15 parts by mass of an acrylic dispersant. The mixture was filled with 0.3 mmφZrO added 2 A bead paint disperser (manufactured by Asada Iron Works Co., Ltd.) was subjected to pulverization and dispersion treatment for 7 hours to obtain a fine particle dispersion liquid (hereinafter referred to as a f...

Embodiment 2

[0312]Except for weighing predetermined amounts of tungstic acid and cesium carbonate, except that the molar ratio of W and Cs was 1:0.31, the same operation as in Example 1 was carried out to obtain Cs tungsten oxide fine particles of Example 2 (hereinafter referred to as Particles b).

[0313] Except having used the fine particle b instead of the fine particle a, it carried out similarly to Example 1, and obtained the dispersion liquid of the fine particle b (hereinafter, referred to as the fine particle dispersion liquid b).

[0314] Next, except that the fine particle dispersion liquid b was used instead of the fine particle dispersion liquid a, the same operation as in Example 1 was carried out to prepare a near-infrared curable ink of Example 2 (hereinafter referred to as ink B).

[0315] Except having used ink B instead of ink A, it carried out similarly to Example 1, and obtained the cured film of Example 2 (referred to as a cured film B hereinafter).

[0316] The fin...

Embodiment 3

[0319] Except that the tungstic acid and cesium carbonate of the predetermined amount were weighed to make the molar ratio of W and Cs 1:0.35, the same operation as in Example 1 was carried out to obtain Cs tungsten oxide fine particles of Example 3 (hereinafter referred to as Particles c).

[0320] Except having used the fine particle c instead of the fine particle a, it carried out similarly to Example 1, and obtained the dispersion liquid of the fine particle c (hereinafter referred to as the fine particle dispersion liquid c).

[0321] Next, except that the fine particle dispersion liquid c was used instead of the fine particle dispersion liquid a, the same operation as in Example 1 was carried out to prepare a near-infrared curable ink of Example 3 (hereinafter referred to as ink C).

[0322] Except having used ink C instead of ink A, it carried out similarly to Example 1, and obtained the cured film of Example 3 (referred to as a cured film C hereinafter).

[0323] The ...

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Abstract

The present invention provides an infrared curable ink composition containing composite tungsten oxide fine particles having sufficient infrared absorbing ability and excellent adhesion to substrates, a near infrared curable film, and an ink composition using the near infrared ink composition light modeling method. A near-infrared-curable ink composition, which contains composite tungsten oxide particles with near-infrared absorption capability and uncured thermosetting resin, wherein the composite tungsten oxide particles are composites containing a hexagonal crystal structure. Tungsten oxide fine particles, the a-axis of the lattice constant of the composite tungsten oxide fine particles is above and below, and the c-axis is above and below, and the average particle diameter of the composite tungsten oxide fine particles is 100 nm or less.

Description

technical field [0001] The present invention relates to a near-infrared-curable ink composition, a near-infrared-curable film, a method for producing the same, and a photomodeling method. Background technique [0002] UV-curable coatings that are cured using UV rays can be printed without heating. Therefore, in recent years, it has been widely known as an environmentally compatible paint, and has been proposed or disclosed in Patent Documents 1 to 6, for example. [0003] However, according to the discussion of the inventors of the present invention, when a composition that undergoes radical polymerization by ultraviolet irradiation is used as an ultraviolet curable ink or coating material, the presence of oxygen inhibits polymerization (curing). On the other hand, in the case of using a composition that undergoes cationic polymerization by ultraviolet irradiation, there is a technical problem in that a strong acid is generated during the polymerization. [0004] In additi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/037B29C64/106B29C64/264B29C64/295C09D11/101B33Y10/00B33Y70/10
CPCB29C64/106B29C64/264B29C64/295B33Y10/00C09D11/037C09D11/101B33Y70/10
Inventor 冈田美香常松裕史长南武
Owner SUMITOMO METAL MINING CO LTD
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