Nanhui oily ink defoamer solution

Customer question

Oil-based inks are mainly used in the printing industry. Oil-based inks have the advantages of fast drying, water resistance, softness, and good light resistance. Oil-based inks use organic solvents as solvents, and various chemical additives need to be added during the production process, which also causes the oil-based inks to be prone to foam during use, which affects the production process. Aiming at the foaming problem of oil-based inks, oil-based ink defoamers can be used to solve the problem. The following are the oily ink defoaming solutions provided by Nanhui for customers.

(Picture: Ink printer for ink application)

1. Customer information: Thailand Chemical Co., Ltd. is a professional chemical company. When encountering the problem of oil-based ink foaming, I found Nanhui on the Internet, and hoped that Nanhui could provide a suitable oil-based ink defoaming solution.

2. Sample information: oily ink sample

Customer request

1. It requires fast defoaming, good defoaming effect and favorable price.

2. Adding to the ink can not affect the quality of the ink.

3. It cannot affect the transparency of oil-based inks.

(Picture: Nanhui ink defoamer sample)

Solution

1. The cause of oily ink blistering

(1) The bubbles in the ink are mostly caused by improper blending in the ink. When we add additives or solvents for stirring, a few bubbles will be mixed in the ink, and the ink with high viscosity cannot be naturally defoamed.

(2) Poor pre-treatment of the substrate, that is, the substrate has not been cleaned before, so that the surface is rich in dust or oil stains and other stains that cause blisters.

(3) For some transparent red, transparent blue, and transparent green inks. Because the amount of organic pigments in the microparticles is reduced, the bonding material of this type of ink has the characteristics of easy foaming.

(4) The printing speed is too fast or uneven, which is also the cause of bubbles.

(Picture: Use scene of oil-based ink)

2. The hazard of oily ink blistering

(1) Affect normal operation: cause printing surface defects and production printing is difficult, the foam in the tank overflows and the foam flows into the reel, wets the printing paper, the printing machine cannot work normally, and the ink foaming reduces the production efficiency.

(2) Affect product quality: the blistering is easy to be uneven, and the ink texture is uniform to ensure the printing quality. Causes printing surface defects, resulting in incomplete printing of patterns on the printing paper.

3. Recommend oily ink defoamer

Nanhui oil-based ink defoamer is a liquid oil-based defoamer, specially designed for various oil-water systems, with outstanding defoaming, especially in oily systems, high temperature and acid-base resistance, at high temperatures of 200 degrees The above, about 20% acid-base system can achieve better defoaming effect. It is suitable for the defoaming and anti-foaming treatment of oily ink, crude oil distillation, mud-blue device, oil and gas separation, lubricating oil, hydraulic oil and other industries.

4. Suggestions for the use of oil-based ink defoamers

The defoamer for oil-based ink is added in the high-speed dispersion and grinding stage to suppress the generation of bubbles, and a part of it is added in the other stage to remove the bubbles. The increase in these two stages depends on the situation. The recommended dosage is 0.1～0.8% of the ink. Please test the exact dosage.

(1) Before determining the dosage, you need to know the parameters first, understand all the pharmaceutical parameters used in the oily ink, and match according to the parameter indicators in proportion.

(2) Calculate the theoretical dosage of oil-based ink. Take the national standard oil-based ink as an example. The specific gravity is about 1 kg, which is approximately used in the area of ​​sewage foam.

(3) Find out the corresponding loss coefficient of the bubbling area, you can know the actual amount per kilogram.

(4) According to the actual foam situation, take the actual amount of the corresponding proportion.

Targeted oil-based ink defoaming experimental program

Formulation selection

Name of defoamer: oil-based ink defoamer

Formulation: please consult Nanhui defoamer technical service specialist (0086-134-2860-1010)