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LED-UV printing ink initiator, preparation method thereof and LED-UV printing ink containing same

A technology of initiator and ink, which is applied in the field of ink and can solve the problems of poor use effect

Inactive Publication Date: 2018-04-17
长飞光纤潜江有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Because the traditional photoinitiator is only suitable for UV curing system, the effect of using it under LED-UV light source is very poor. Therefore, it is necessary to develop special ink for LED-UV

Method used

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  • LED-UV printing ink initiator, preparation method thereof and LED-UV printing ink containing same
  • LED-UV printing ink initiator, preparation method thereof and LED-UV printing ink containing same
  • LED-UV printing ink initiator, preparation method thereof and LED-UV printing ink containing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A novel LED-UV ink initiator, chemical structure as shown in formula 2, abbreviated as TPO-La(OTf) 2 .

[0034]

[0035] The chemical structure of the LED-UV ink initiator shown in formula 2, its synthesis process is as follows:

[0036] (1) Take a dry 500ml single-mouth ground flask, add a tetrafluoro stirring blade; heat the oil bath to 75°C-80°C, and add 2,4,6-trimethylbenzoylphenylphosphonic acid into the flask 29.9g, NaOH 4g, solvent THF 200g, fully stirred for 30min; then transfer the flask to a rotary evaporator to evaporate the aqueous THF solvent to obtain 2,4,6-trimethylbenzoylphenyl phosphonate sodium, dissolved in 300ml DMF for use;

[0037] (2) in N 2 In the 1000ml three-necked bottle under protection, add La(OTf) 3 64.5g of powder and 500ml of DMF, heated and stirred to dissolve; then, at 60°C, add the DMF solution of sodium 2,4,6-trimethylbenzoylphenylphosphonate obtained in step (1) dropwise to the three-necked flask After adding in about 1 hour,...

Embodiment 2

[0040] A novel LED-UV ink initiator, chemical structure as shown in formula 3, abbreviated as TPO-Tb (PFO) 2 .

[0041]

[0042] The chemical structure of the LED-UV ink initiator shown in formula 3, its synthesis process is as follows:

[0043](1) Take a dry 500ml single-mouth ground flask, add a tetrafluoro stirring blade; heat the oil bath to 75°C-80°C, and add 2,4,6-trimethylbenzoylphenylphosphonic acid into the flask 29.9g, NaOH 4g, solvent THF 200g, fully stirred for 30min; then transfer the flask to a rotary evaporator to evaporate the aqueous THF solvent to obtain 2,4,6-trimethylbenzoylphenyl phosphonate sodium, dissolved in 300ml DMF for use;

[0044] (2) in N 2 In the 1000ml three-neck bottle under protection, add Yb(PF0) 3 154.9g of powder and 500ml of DMF, heated and stirred to dissolve; then, at 60°C, add the DMF solution of sodium 2,4,6-trimethylbenzoylphenylphosphonate obtained in step (1) dropwise to the three-necked flask , Added in about 1 hour, conti...

Embodiment 3

[0047] A kind of LED-UV red ink, comprises the following components by weight percentage: coloring agent P.R.254 red 6%, active monomer tripropylene glycol diacrylate 30%, active monomer trimethylolpropane trimethacrylate 37% , prepolymer polyether acrylate (molecular weight 1000-3000) 15%, LED-UV ink initiator TPO-La (OTf) described in embodiment 1 2 1.5%, antifoaming agent dimethyl polysiloxane 2.5%, solvent butyl acetate 8%.

[0048] The preparation method of above-mentioned LED-UV red ink, concrete steps are as follows:

[0049] 1) Prepare the following raw materials: 6g of pigment P.R.254 red, 30g of tripropylene glycol diacrylate, 37g of trimethylolpropane trimethacrylate, 15g of polyether acrylate, TPO-La(OTf) 2 1.5g, 2.5g dimethyl polysiloxane, 8g butyl acetate.

[0050] 2) Mix and stir 6g of P.R.254 pigment, 12g of tripropylene glycol diacrylate, 37g of trimethylolpropane trimethacrylate, and 15g of polyether acrylate, and pour it into a grinder to grind into a pre...

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Abstract

The invention discloses a novel LED-UV printing ink initiator. The novel LED-UV printing ink initiator is a rare earth derivative of 2,4,6-trimethylbenzoyl phenylphosphonic acid and can be abbreviatedas TPO-MX2, wherein TPO<-> is a 2,4,6-trimethylbenzoyl phenylphosphonate radical, M is a trivalent rare earth metal ion, and X is a monovalent anion. Meanwhile, the invention also provides LED-UV printing ink containing the LED-UV printing ink initiator, complete curing can be realized when the LED-UV printing ink is applied to curing under strict production conditions such as high speed and lowthermal radiation, and the traditional UV curing printing ink can be completely replaced, so that the aims of saving energy and protecting the environment are achieved.

Description

technical field [0001] The invention relates to a novel LED-UV ink initiator, a preparation method thereof, and an LED-UV ink using the initiator, belonging to the field of ink. Background technique [0002] Ultraviolet (UV) curable ink refers to the ink in which the binder in the ink undergoes a crosslinking reaction under the irradiation of ultraviolet light of a certain wavelength, and changes from liquid to solid to complete curing. At present, the used photoinitiator of the ultraviolet curing ink that sees contains aminoalkyl phenyl ketone, aminobenzoic acid ester (CN103613988A), benzophenone, benzo dimethyl ether (CN103788759A), 2-hydroxyl-2 -Dimethyl-1-propanone, 1-hydroxy-cyclohexyl-phenyl ketone (CN103552330A), 2-isopropylthioxanthone, TPO, (CN102558580A), isooctyl dimethylaminobenzoate (CN10449037A )Wait. [0003] However, these initiators are only suitable for traditional UV curing ink systems, and are not effective for emerging LED-UV curing, mainly because the...

Claims

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Application Information

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IPC IPC(8): C09D11/101C08F2/48C07F9/46
CPCC07F9/46C08F2/48C09D11/101
Inventor 杨柳波张宏胜渠驰刘二明王友志徐超谈立君陈刘芳
Owner 长飞光纤潜江有限公司
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