阅读说明：本技术 一种水性凹印哑光光油及其制备方法 (Water-based gravure matte gloss oil and preparation method thereof ) 是由 李广海 于 2019-11-11 设计创作，主要内容包括：本发明公开了一种水性凹印哑光光油,属于油墨领域,由以下组分按重量百分比组成：30-40％水性丙烯酸乳液、25-35％水性丙烯酸树脂、0.5-1.5％水性分散剂、0.1-0.5％水性消泡剂、5-10％消光粉、15-20％去离子水、1-1.5％水性流平润湿剂、2-2.5％水性蜡乳液、0.5-1％水性滑爽助剂。上述水性凹印哑光光油的制备方法,包括配料；分散：先低速搅拌分散,再高速搅拌分散15-30min,直至完全分散均匀；磨砂：2-3遍,细度控制在10μm之内,磨砂后高速分散,调整粘度,检验其色相、干燥速度、附着牢度指标。本发明解决了现有技术中毒性大、气味大、附着性低等问题,可以满足凹版印刷的要求。(The invention discloses water-based gravure matte gloss oil, which belongs to the field of printing ink and comprises the following components in percentage by weight: 30-40% of water-based acrylic emulsion, 25-35% of water-based acrylic resin, 0.5-1.5% of water-based dispersing agent, 0.1-0.5% of water-based defoaming agent, 5-10% of matting powder, 15-20% of deionized water, 1-1.5% of water-based leveling wetting agent, 2-2.5% of water-based wax emulsion and 0.5-1% of water-based slip additive. The preparation method of the water-based gravure matte gloss oil comprises the steps of mixing materials; dispersing: firstly stirring and dispersing at low speed, and then stirring and dispersing at high speed for 15-30min until the dispersion is completely uniform; sanding: 2-3 times, controlling the fineness within 10 μm, grinding, dispersing at high speed, adjusting viscosity, and testing hue, drying speed, and adhesion fastness index. The invention solves the problems of high toxicity, strong smell, low adhesiveness and the like in the prior art, and can meet the requirements of gravure printing.)

1. The water-based gravure matte gloss oil is characterized by comprising the following components in percentage by weight: 30-40% of water-based acrylic emulsion, 25-35% of water-based acrylic resin, 0.5-1.5% of water-based dispersing agent, 0.1-0.5% of water-based defoaming agent, 5-10% of matting powder, 15-20% of deionized water, 1-1.5% of water-based leveling wetting agent, 2-2.5% of water-based wax emulsion and 0.5-1% of water-based slip additive.

2. The aqueous gravure matte gloss oil according to claim 1, which is characterized by comprising the following components in percentage by weight: 35% of water-based acrylic emulsion, 32% of water-based acrylic resin, 1.3% of water-based dispersing agent, 0.3% of water-based defoaming agent, 8.5% of matting powder, 18.5% of deionized water, 1.3% of water-based leveling wetting agent, 2.3% of water-based wax emulsion and 0.8% of water-based slip additive.

3. A method for preparing the aqueous gravure matte gloss oil according to claim 1 or 2, characterized in that: the method comprises the following steps:

(1) preparing materials: putting the raw materials into a stirring reaction kettle according to the proportion, and reserving ten percent of deionized water for a sanding process;

(2) dispersing: firstly stirring and dispersing at a low speed until the extinction powder is completely wet, wherein the rotating speed is 100-;

(3) sanding: sanding for 2-3 times, flushing the sanding machine with deionized water reserved in the step (1) in the sanding process, controlling the fineness within 10 mu m, dispersing at high speed after sanding, and stirring at the rotation speed of 1000-1500r/min until the mixture is completely and uniformly dispersed; adjusting viscosity, and inspecting hue, drying speed and adhesion fastness indexes.

Technical Field

The invention belongs to the field of printing ink, and particularly relates to water-based gravure matte gloss oil and a preparation method thereof.

Background

With the development of social culture, science and technology and economy, the printing industry is developing at an unprecedented speed, and gravure printing is an important component in the printing process and forms four printing process systems with offset printing, flexo printing and silk printing. With the development of printing technology and the revolution of technology, the gravure printing is expanded from plane printing to curved surface three-dimensional printing, and particularly has very great development potential on decoration printing. The gravure process has the outstanding advantages of bright printing pattern, rich layer reproduction capability, strong printing endurance of the printing plate and wide range of base materials suitable for printing.

The volatilization of the organic solvent has great influence on human health. Since the international environmental protection law is issued, developed countries successively put forward three preconditions of pollution-free (pollution-free), resource-saving and energy-saving and four major principles of economy, efficiency, ecology and energy for developing coating industry, develop towards low organic volatile compounds (VOC), and pay attention to environmental protection, and have become a common cause of human beings. VOC emitted from paint is one of the main environmental pollution sources. Therefore, reduction of VOC content has become a general trend in the development of domestic and foreign coating materials.

Chinese patent publication No. CN1948406, entitled "high temperature curing aqueous inkjet ink containing inorganic pigments", discloses an environment-friendly pigment at least comprising an inorganic pigment, a water-soluble synthetic resin, an organic monomer and a copolymer, the inorganic pigment comprising: a single type or solid solution type pigment comprising a single metal oxide and a sulfide, or a filled type pigment comprising at least two metal oxides and sulfides, and of course, various kinds of fine metal powders; the water-soluble synthetic resin is one or more of alkyd resin, vinyl resin, acrylic resin and urea resin, and the modified substances of the resins are also included; the organic monomer and the copolymer comprise acrylate polymers such as tripropylene glycol diacrylate, 1, 6-ethylene glycol diacrylate, trimethylpropane triacrylate, pentaerythritol triacrylate and the like. Although the environmental-friendly pigment has less pollution, the environmental-friendly pigment does not reduce the generation of volatile matters.

Disclosure of Invention

The invention aims to provide water-based gravure matte gloss oil and a preparation method thereof, solves the problems of high toxicity, strong smell, low adhesiveness and the like in the prior art, can meet the requirements of gravure printing and achieves a good printing effect.

In order to achieve the purpose, the invention adopts the following technical scheme:

the water-based gravure matte gloss oil comprises the following components in percentage by weight: 30-40% of water-based acrylic emulsion, 25-35% of water-based acrylic resin, 0.5-1.5% of water-based dispersing agent, 0.1-0.5% of water-based defoaming agent, 5-10% of matting powder, 15-20% of deionized water, 1-1.5% of water-based leveling wetting agent, 2-2.5% of water-based wax emulsion and 0.5-1% of water-based slip additive.

Preferably, the water-based gravure matte gloss oil consists of the following components in percentage by weight: 35% of water-based acrylic emulsion, 32% of water-based acrylic resin, 1.3% of water-based dispersing agent, 0.3% of water-based defoaming agent, 8.5% of matting powder, 18.5% of deionized water, 1.3% of water-based leveling wetting agent, 2.3% of water-based wax emulsion and 0.8% of water-based slip additive.

The preparation method of the water-based gravure matte gloss oil comprises the following steps:

(1) preparing materials: putting the raw materials into a stirring reaction kettle according to the proportion, and reserving ten percent of deionized water for a sanding process;

(2) dispersing: firstly stirring and dispersing at a low speed until the extinction powder is completely wet, wherein the rotating speed is 100-;

(3) sanding: sanding for 2-3 times, flushing the sanding machine with deionized water reserved in the step (1) in the sanding process, controlling the fineness within 10 mu m, dispersing at high speed after sanding, and stirring at the rotation speed of 1000-1500r/min until the mixture is completely and uniformly dispersed; adjusting viscosity, and inspecting hue, drying speed and adhesion fastness indexes.

Compared with the prior art, the invention has the following advantages:

the water-based acrylic emulsion and the water-based acrylic resin are used as ink binders, so that the ink is environment-friendly, non-toxic, low in VOC volatilization and beneficial to safe production and environment protection; the gravure matte gloss oil has the characteristics of high viscosity, low viscosity and high adhesiveness, improves the fixation speed and the drying speed of the ink, also improves the rheological property of the ink, enables the ink to present better glossiness and bright color, and meets the requirement of high-speed gravure printing of customers. The preparation method is simple, low in production cost, low in air pollution and suitable for large-scale industrial production.

Detailed Description

The present invention will be described in further detail with reference to examples.