Water Based Red Ink

Water based red ink is mainly produced and processed by compound grinding of water-soluble resin, organic pigment, water and related additives. Water based red ink is mainly based on waterborne polymer emulsion, organic pigment, resin, surface active agent and related additives, which are made of water based printing ink by organic chemical operation process and physical mixing. In view of the fact that it uses water to replace 30% to 70% of the harmful organic solvent in the traditional ink, the ink will no longer contain volatile organic solvents.

Gravure red ink: this type of ink that can be used for gravure printing. During printing, ink is applied to the pattern part recessed in the plate, and the ink in the non pattern part is wiped or scraped off, and then printing is carried out. There are engraving gravure ink and photographing gravure ink.

Manufacturing Process

1. First, put the acrylic resin solution, ethanol and part of deionized water into the dispersion kettle according to the formula requirements, and mix them sufficiently and disperse them evenly.

2. The formula needs to weigh the quasi red pigment and 0.3 parts of defoamer into the dispersion kettle, fully disperse and stir evenly.

3. Move the dispersed materials to the sanding mill for grinding, grind for 3-4 times, and measure the fineness below 15um. Otherwise, grind again until the fineness meets the requirements.

4. Move the grinded materials into the dispersing kettle, According to the formula, the emulsion, water wax, toner, the remaining defoaming and deionized water are put into the disperse kettle, and after sufficient dispersing and balancing.

Several advantages of aqueous water based red ink defoamer

At present, with the diversification of the selection rate of water based red ink, the market share is also higher and higher. There are many kinds of water-based defoamers, and their uses are very different； Water based ink defoamer is one of them. Water based ink defoamer is a uniform slurry composed of binder, pigment, additives and other substances. Common organic pigments and inorganic pigments can be used for water-based inks. Because most of the resins of water-based ink are alkali soluble, when selecting pigments, you must use alkaline pigments.

Water based red ink defoamer is a polyether defoamer, which has no effect on gloss, good transparency, no silicon and no mineral oil. It is recommended for water-based ink, water-based glazing oil and water-based high gloss coating.

Characteristic

1. High solid content, low dosage, fast defoaming, long foam inhibition, good water solubility, can be diluted and used;

2. Good heat resistance, chemical stability, non combustible and non explosive;

3. High temperature resistance, acid and alkali resistance, no floating and oil bleaching;

Application: suitable for polyurethane dispersion, epoxy, alkyd resin, waterborne printing ink and elastic coating;

Use: it needs to be stirred evenly before use. It can be added directly or diluted with water. Generally, the initial dosage is 0.2 - 0.4.

Water based red ink is an important material for printing. Patterns and words are expressed on the substrate through printing or spray painting. As a project with high cost of consumables in carton production, improper use of ink will cause a lot of waste. In daily production, using some tips will help to save ink and make carton production more lean.

Tips for using water based red ink

1. Do not mix ink with solvent ink. Add water properly during use. When it is really necessary to adjust the viscosity or drying speed, add an appropriate amount of additives such as alcohols or esters.

2. Before use, the ink should be mixed evenly and then poured into the ink tank. The viscosity can be adjusted properly with water before use. The unused packaging barrel shall be covered to prevent the ink from volatilizing in nature.

3. Before use, the technical indexes, especially the hue, shall be tested to see whether they meet the production requirements. If the hue deviation is large, please inform the ink manufacturer to make appropriate allocation to avoid disputes caused by hue error.

4. In the printing process, due to the volatilization of water, the original viscosity and pH value of ink will be affected. The viscosity and pH value must be tested frequently. If necessary, purified tap water or pH value stabilizer should be added appropriately.

5. After printing, the ink remaining on the printing equipment shall be washed with clean water. The ink on the anilox roller of the printing machine shall be cleaned with cleaning agent to serve the next printing.

Water based red ink is an important material for packaging material printing. It is widely used in various printing such as books and periodicals, packaging decoration, architectural decoration and so on.

The basic components of water-based red ink are: pigment + binder + auxiliary additives

The physical properties such as pigment particle size and surface have a great impact on the dispersion process. The smaller the pigment particle size, the larger the specific surface area, the stronger the color, and the greater the influence of pigment particle size on color intensity. If this degree of dispersion cannot be achieved, printing problems will occur. In order to obtain the best effect of pigment, it is necessary to completely reduce it to the original particle size as much as possible. The main characteristic particle size is 0.5 μ m or the specific surface area is 30 to 100 m²/g.

To meet the requirements of water-based red ink, its manufacturing process is a complex process. Basically, ink manufacturing is the combination of pigments, carriers, additives and other alkaline substances. Today, let's learn about its manufacturing process.

Varnish is a transparent liquid that solidifies into a thin film. It combines the pigment with the printing surface, provides the printability of the ink, and moistens the pigment particles. There are two main types of varnish: oleoresin varnish (which includes dry oil 8, such as flaxseed oil) and non oleoresin varnish. The manufacturing temperature of oily varnish is much higher than that of non oily varnish, and the conditions are much stricter.

Production Process

1. Make connecting material, add auxiliary additives and pigment for mixing; After mixing and stirring, pigment particles usually agglomerate together to form a polymer

Such as varnish manufacturing

Varnishes are usually manufactured in closed pots, where oil and solvents are heated to allow rapid dissolution or transesterification. The temperatures involved in the process will vary, but may be between 120 ° C and 260 ° C. The cooking time may be between a few minutes and a few hours. Temperature control is very important in this process. Closely monitor the temperature change rate, the maximum temperature reached and the cooking time. Condensers are usually used to prevent solvent loss. Since varnish contains a dry oil, oxygen in the atmosphere must be removed to prevent its polymerization.

In the production of a typical oily ink varnish, dry oil, alkyd and other solvents are added to the container under nitrogen before cooking. When the correct temperature is reached, hard resin is added. The cooking process continues until the reactants are completely consumed in the transesterification process or sufficient solubility is reached in the solvent. Additives such as chelating agent are added after batch cooling. Finally, the varnish mixture is reheated to obtain the target rheological properties, and the produced varnish is tested before being sent to the storage tank.

2. Pigment dispersion; The raw materials mixed in the first step are ground by a grinder to evenly disperse the pigment polymer to meet the ideal fineness requirements

Once the varnish (containing solvents, resins and additives) is produced, the pigment is mixed. At this time, the pigment particles gather together, and these agglomerates must be broken by a pulverizer to make the pigment evenly dispersed in the resin.

Hot Tags: water based red ink, China water based red ink manufacturers, suppliers, white water based screen printing ink, water based screen printing ink for fabric, Water Based Gravure Ink, water based printing ink, water based dye ink, water based block printing ink