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Radiation-curable inks for flexographic and screen-printing applications from multifunctional acrylate oligomers

一种胶印油墨、环氧丙烯酸酯的技术，应用在油墨、应用、聚酯涂料等方向

Inactive Publication Date: 2007-01-10
ASHLAND LICENSING & INTPROP LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Screen printing ink formulations made from traditional monomers and oligomers often have compatibility issues with some of the above additives

Method used

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  • Radiation-curable inks for flexographic and screen-printing applications from multifunctional acrylate oligomers
  • Radiation-curable inks for flexographic and screen-printing applications from multifunctional acrylate oligomers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Example 1: White UV-curable screen printing ink

[0069] Michael Resin Pigment Dispersion 30-w-051903-05. White pigments were ground using a 3-roll mill in the dispersion resin. A preferred embodiment uses the oligomer Ashland D-30R as the dispersion resin. Other Michael dispersing resins are suitable for use in the inks of the present invention. A preferred Michael resin-pigment dispersion (grind formulation) for white inks comprises 45 parts by weight of Michael oligomer Ashland D-30R and 105 parts of DuPont R-706 white pigment. The resin may suitably comprise from about 10 parts to about 75 parts by weight. The pigment may suitably comprise from about 10 parts to about 90 parts by weight. Michael dispersion resins and pigment dispersions are disclosed in co-pending application Serial No. (not yet assigned, Attorney Docket No. 20435 / 0151), the entire contents of which are incorporated herein by reference for all purposes.

[0070] Non-limiting examples of suitabl...

Embodiment 2

[0083] Example 2: Yellow UV-curable screen printing ink

[0084] Dispersion 30-y-051903-02. Form the Michael resin-pigment dispersion as above for the white ink. A preferred pigment (YE1400DC) was milled in Ashland D-30R resin using a 3-roll mill. The preferred weight ratio is 102 parts resin to 48 parts pigment. For yellow inks, the ratio of resin can vary from about 30 to about 80 parts. The number of parts of pigment can vary from about 20 parts to about 50 parts. As noted above, Ashland D-30R is the preferred dispersion resin, but other Michael dispersion resin formulations are also suitable.

[0085] Yellow Ink Screen-y-052703-01. The dispersion can be thinned or diluted with the appropriate screen let-down resins of the invention and additives to obtain the desired ink formulation. The viscosity of the formulation was measured and considered acceptable as long as it was within 10% of the standard yellow ink formulation. The inks were screen printed onto various su...

Embodiment 3

[0088] Example 3: Red UV-curable screen printing ink

[0089] Dispersion 30-R-051903-04. A preferred dispersion of red ink is formed by grinding red pigment (LR-1392) with Ashland D-30R dispersion resin using a 3-roll mill. A preferred dispersion (30-R-051903-04) comprises, in parts by weight: 97.5 parts of resin 6923-30, 7.5 parts of TMPEOTA (as diluent monomer) and 48 parts of red pigment LR-1392. Suitably, the dispersion of red ink may comprise from about 20 parts to about 75 parts of dispersing resin, from about 0 parts to about 10 parts of diluent monomer, and from about 20 parts to about 50 parts of red pigment.

[0090] The composition of the dispersion resin may vary as described above. Non-limiting examples of suitable diluent monomers include: ethylene glycol diacrylate, propylene glycol diacrylate, diethylene glycol diacrylate, dipropylene glycol diacrylate (DPGDA), triethylene glycol diacrylate, Tripropylene Glycol Diacrylate, Tetraethylene Glycol Diacrylate, Te...

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Abstract

The present invention relates generally to radiation-curable ink formulations, and particularly, but not by way of limitation, to a family of radiation-curable ink formulations specifically for flexographic and screen printing applications. The inventive ink formulations are based on multifunctional acrylate resins formed by the reaction of acrylate monomers and oligomers with ss-keto esters (e.g., acetoacetates), ss-diketones (e.g., 2, 4-pentanedione), ss-keto amides (e.g., acetoacetanilide, acetoacetamide), and / or other ss-dicarbonyl compounds that can participate in Michael addition reactions.

Description

technical field [0001] The present invention relates generally to radiation curable ink formulations and in particular, but not by way of limitation, to a class of radiation curable ink formulations particularly useful in offset printing and screen printing applications. Furthermore, the present invention relates particularly, but not by way of limitation, to a class of radiation curable ink formulations particularly useful in offset printing applications. The ink formulations of the present invention are based on multifunctional acrylate resins obtained by reacting acrylate monomers and oligomers with β-ketoesters (e.g. acetoacetate), β-diketones (e.g. 2,4- pentanedione), β-ketoamides (such as N-acetoacetanilide, acetoacetamide) and / or other β-dicarbonyl compounds that can participate in Michael (Michael) addition reaction to form. Background technique [0002] The information provided below is not believed to be prior art to the present invention, bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F218/02C08F222/10C08L33/04C08L33/14C08L39/00C08G59/00C09D11/10
CPCY10T428/31855C09D167/07C09D11/101C08L75/16C08F2/46C08F8/30C08F222/10C08J3/00
Inventor 斯瑞德威·纳拉扬-萨拉提莉萨·玛丽·哈恩
Owner ASHLAND LICENSING & INTPROP LLC
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