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Active energy ray curable composition, cured product, composition storage container, image forming apparatus, and image forming method

一种活性能量射线、硬化型的技术，应用在油墨、家里用具、应用等方向，能够解决过敏反应、皮肤有过敏性等问题

Inactive Publication Date: 2017-11-21
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, many of the acrylates and the polymer initiators are allergic to the skin, and when the ink containing these components is mistakenly attached to the skin, it may cause an allergic reaction

Method used

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  • Active energy ray curable composition, cured product, composition storage container, image forming apparatus, and image forming method
  • Active energy ray curable composition, cured product, composition storage container, image forming apparatus, and image forming method
  • Active energy ray curable composition, cured product, composition storage container, image forming apparatus, and image forming method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0108]

[0109] 99.1% by mass of acryloylmorpholine ("ACMO" produced by KJ Chemical Co., Ltd.) and 0.9% by mass of (2,4,6-trimethylbenzoyl)diphenylphosphine oxide (BASF Japan Co., Ltd. produced "irugakyuaTPO") and stirred for one hour. After visually confirming that there was no dissolved residue, the coarse particles were removed by filtration through a membrane filter, and an active energy ray-curable composition 1 was prepared.

Embodiment 2～8 and comparative example 1～3

[0111]

[0112] In the aforementioned Example 1, active energy ray-curable compositions 2 to 11 were produced in the same manner as in Example 1 except that the composition and content in Table 2 below were changed.

[0113]

[0114] As an evaluation of the curability of the aforementioned active energy ray-curable compositions 1 to 11, the active energy ray-curable compositions were measured by the following method using a viscoelasticity measuring device (“MCR302” manufactured by Anton Paar Co., Ltd.) The amount of light exposure required for hardening and the results are shown in Table 2.

[0115] (Measurement methods)

[0116] Planar measurement jigs with a diameter of 20 mm were provided on a glass platform at intervals of 10 μm, and an active energy ray-curable composition was sandwiched between the intervals to form a liquid film with a thickness of 10 μm. From the lower side of the glass platform, an LED light source ("point light source (LIGHTNINGCURE LC-L1)" pro...

Embodiment 9～13

[0123] In the aforementioned Examples 1 to 8, the curability of the ink was evaluated by measuring the viscoelasticity.

[0124] In Examples 9 to 13, the ink was applied to the base material by inkjet, and it was hardened by ultraviolet irradiation to form a printed image, and then the image quality and adhesiveness of the printed image were evaluated.

[0125]

[0126] In the aforementioned Example 1, active energy ray-curable compositions 12 to 16 were produced in the same manner as in Example 1 except that the composition and content in Table 3 below were changed.

[0127]

[0128] The active energy ray-curable compositions 12 to 16 were respectively filled into composition storage containers made of plastic and loaded into an image forming apparatus including an inkjet nozzle (manufactured by Ricoh Co., Ltd. MH5440"), an ultraviolet irradiation machine ("LH6" manufactured by Fusion Systems Japan Co., Ltd.) as an active energy ray irradiation mechanism, a controller for...

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PUM

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Abstract

The invention relates to an active energy ray curable composition, cured product, composition storage container, image forming apparatus, and image forming method, and provides an active energy ray curable composition which causes no sensitization to the skin, and can be cured with less energy. The active energy ray curable composition includes a polymerizable monomer (A) and a polymerization initiator (B). The polymerization initiator (B) includes a skin-sensitizing polymerization initiator (B1) in an amount less than 1.0% by mass but not less than 0.1% by mass of the active energy ray curable composition, and 99.0% by mass or more of the active energy ray curable composition consists of non-skin-sensitizing constituents.

Description

technical field [0001] The present invention relates to an active energy ray curable composition, a cured product, a composition storage container, an image forming apparatus, and an image forming method. Background technique [0002] In the inkjet recording method of the active energy ray curing type, radical polymerization inks or cationic polymerization inks are used, and even among these, radical polymerization inks are widely used in terms of ink production costs and storage stability . [0003] As the radical polymerization ink of the active energy ray hardening type, since the viscosity of the ink can be reduced and the ink can be cured with less energy, it is known that a polymerizable monomer represented by acrylate is used as a main component, and the ink is cured by active energy. A composition compounded with a polymer initiator that generates free radicals by irradiation with radiation. [0004] However, many of the acrylates and the polymer initiators are all...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F126/06C08F222/14C08F220/58C08F226/06C09D11/101C09D11/30
CPCC08F126/06C08F222/1006C08F226/06C09D11/101C09D11/30C08F222/102C08F220/58C08F2/48C09D11/38C08F22/14C08F26/06C09D11/107
Inventor 山田裕章
Owner RICOH KK
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