A kind of uv inkjet that can control the end state of ink droplet and its preparation method

A technology of end and state, applied in the field of UV inkjet and its preparation that can control the end state of ink droplets, it can solve the problems of poor compatibility, no ink coming out of the nozzle, easy adsorption on the channel wall, etc., and achieve good compatibility , ink droplet size and speed accurate and stable effect

Active Publication Date: 2022-05-20
TRENDVISION TECH(ZHUHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially the use of high molecular weight oligomers or resins can quickly increase the viscosity of the ink to achieve a perfect ink drop with almost no tailing and no satellites, and the appearance is similar to a sphere, but this method has a fatal problem
The reason is that high-molecular-weight oligomers generally have poor compatibility with monomer solvents. They flow in the nozzle channel of the capillary and are easily adsorbed on the channel wall, which in turn causes the ink to locally thicken and become viscous.
A common phenomenon is that when using high-molecular-weight oligomer or resin ink, there will be problems such as ink breakage or oblique spray after long-term printing, or ink will not come out after the nozzle is left standing.

Method used

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  • A kind of uv inkjet that can control the end state of ink droplet and its preparation method
  • A kind of uv inkjet that can control the end state of ink droplet and its preparation method
  • A kind of uv inkjet that can control the end state of ink droplet and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The diluent includes 12.2 parts of tetrahydrofurfuryl acrylate and 5.0 parts of N,N-dimethylacrylamide; the monomer includes 10.0 parts of N-acryloylmorpholine, 15.0 parts of cyclotrimethylolpropane formal acrylate, 6.0 parts ethoxylated nonylphenol acrylate, 3.0 parts ethoxylated trimethylolpropane triacrylate, 10.0 parts o-phenylphenoxyethyl acrylate; acrylate oligomers including 15.0 parts polyurethane acrylate and 5.0 parts cyclo Oxyacrylates; photoinitiators include 7.0 parts 2,4,6-trimethylbenzoyldiphenylphosphine oxide, 3.0 parts 2,4-diethylthiazolone; additives include 0.5 parts BYK-337 wetting Agent, 0.8 parts of p-hydroxyanisole stabilizer; and 2.5 parts of dispersant Solsperse24000 were stirred until completely dissolved, the stirring speed was 1000rpm, and the stirring time was 4hr to obtain a pre-solution;

[0047] Mix and stir the aforementioned pre-solution with 5.0 parts of red pigment PR-122 until the pigment is completely wetted, the stirring speed is ...

Embodiment 2-6

[0049] The formula of embodiment 2-6 is shown in table 1, and preparation method is the same as embodiment 1.

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PUM

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Abstract

The invention belongs to the field of printing consumables, and discloses a UV inkjet inkjet that can regulate the end state of ink droplets, which is mainly prepared from the following raw materials: monomers, acrylate oligomers, photoinitiators, dispersants and pigments; The body is acrylate and / or acrylic acid; the monomer and the acrylate oligomer meet the following conditions: (1) the Mu value of the monomer <4; (2) the Mu of the acrylate oligomer Value<4; (3) The sum of the Mu value of the monomer and the Mu value of the acrylate oligomer is 4-8; wherein: the arithmetic square root of the viscosity value at Mu=25°C×substances accounting for the total mass of raw materials percentage. The UV inkjet of the present invention can make high-molecular-weight oligomers and monomers have good compatibility; there is no tailing or satellite dots during inkjet, and at the same time, there will be no broken line of the nozzle, oblique spray or ink out, and the printing The ink droplet size and velocity are both accurate and stable.

Description

technical field [0001] The invention belongs to the field of printing consumables, and in particular relates to a UV inkjet capable of regulating the end state of ink droplets and a preparation method thereof. Background technique [0002] UV inkjet is an environmentally friendly and energy-saving inkjet that does not contain volatile organic solvents and does not need to be dried. It is widely used in billboards, literature, signboards, wallpapers, car stickers, packaging, cartons and other places that require high-precision graphics. In addition, the digital printing capability of UV inkjet can achieve on-demand printing, which is easy to customize and beautify, and the output effect is comparable to photo images, which is beyond the reach of traditional printing. In order to achieve high-precision image output, the size of the ink droplet needs to be precisely controlled, including the ejection speed of the ink droplet, the appearance and size of the ink droplet, and the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/322C09D11/101
CPCC09D11/322C09D11/101
Inventor 刘明辉黄健彬陈亮梁文龙杨飞虎
Owner TRENDVISION TECH(ZHUHAI) CO LTD
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