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 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 is the oil-based ink defoaming solution provided by Nanhui for customers.

(Picture: Ink printer for ink application)

1. Customer information: Chinese Academy of Sciences Guangzhou Chemical Co., Ltd. is a company specializing in chemical engineering. When encountering the problem of oily ink foaming, I found Nanhui on the Internet, and hoped that Nanhui could provide a suitable oily 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 cannot affect the quality of the ink.

3. Can not affect the transparency of oil-based ink.

(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 into the ink, and the ink with high viscosity cannot be naturally defoamed.

(2) The pre-treatment of the substrate is poor, 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 is easy to foam.

(4) Too fast or uneven printing speed is also the cause of bubbles.

(Picture: Use scene of oil-based ink)

2. The hazards of oily ink foaming

(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: 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 oil-based systems, high temperature and acid-base resistance, 200 degrees at high temperature More than 20% acid-base system can achieve better defoaming effect. It is suitable for defoaming and anti-foaming treatment in industries such as oil-based ink, crude oil distillation, mud-blue device, oil and gas separation, lubricating oil, hydraulic oil, etc.

4. Suggestions for using oily ink defoamer

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 another stage to remove bubbles. The increase in the 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 amount 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 loss coefficient corresponding to 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.

5. Targeted oil-based ink defoaming experimental program

Nanhui metalworking fluid defoamer is added in the production, which can control the foam from the production source, optimize the formula of the metalworking fluid, reduce the surface tension of the system, and reduce the foaming power. The defoaming agent can also be added during the use of metalworking fluids, generally about three thousandths of the foaming system. The addition amount is small, which can quickly defoam the foam and inhibit foam regeneration for a long time.

The source manufacturer of Nanhui defoamer can solve various industrial foam problems in a targeted manner. If you encounter bubble problems in related industries, you can call Nanhui technical specialist Yoyo +86 134 28601010