Is the smell of printing ink harmful to the body?

The smell of the printing plant is harmful to the human body, because the printing ink is composed of pigments, binders, solvents, and auxiliaries, among which organic solvents and heavy metal elements are seriously harmful to the human body.

1. Organic solvents such as ethanol, isopropanol, butanol, propanol, methyl ethyl ketone, ethyl acetate, butyl acetate, toluene and xylene are often used in printing inks. While these solvents can be removed by drying, residual solvents can migrate into food and cause harm to humans.

2. Some organic pigments contain biphenyl gum, which contains carcinogenic ingredients and should not be used.

3. Composite packaging materials use a lot of ink, organic solvents and adhesives in printing. Although these accessories do not come into direct contact with food, some toxic substances can migrate into food during food packaging and storage, which can harm people's health.

4. There are two kinds of pigments in the ink - inorganic pigments and organic pigments, both of which are insoluble in water and other media, and the colors are bright and stable. Some inorganic pigments contain heavy metals such as lead, chromium, copper, mercury, etc., which have certain toxicity and cannot be used for printing food packaging and children's toys;

5. Organic solvents can dissolve many natural resins and synthetic resins, which are important components of various inks, but some of them will damage the human body and subcutaneous fat. It is sucked into the trachea, bronchi, lungs, or transmitted to other organs through blood vessels and lymphatic vessels, and may even cause chronic poisoning of the body.

6. Some inks have the toxicity of heavy metal ions, and pigments and dyes contain carcinogenic ingredients, which are very harmful to human health.

7. The solvents used in gravure inks generally include butanone, xylene, toluene, butanol, etc. In particular, the residual smell of butanone is strong.

8. Because the pigment particles in the ink are very small and the adsorption force is strong, although it has been heated and dried during printing, it is often not completely dried due to the short time and fast speed, especially the printed matter with a large inking area and a thick ink layer, and its residual solvent is more.

9. These residual solvents are brought to the compounding process, which is more difficult to run away after compounding, and will slowly migrate and penetrate.

Long-term smell of printing ink is harmful to the human body is to cause blood system diseases.

Engaging in the printing industry has an impact on the body, because the printing house is harmful to the human body. The volatile organic solvents in the ink are more harmful, including ethanol, isopropanol, toluene and other organic solvents, which are absorbed by the human body after volatilization and can cause blood diseases.

Heavy metal elements such as lead, chromium, cadmium, and mercury contained in printing pigments are also toxic. When the amount of lead in the human body accumulates to a certain level, chronic poisoning symptoms such as mental disorders, nightmares, insomnia, and headaches will occur.

The main components and uses of inks:

The ink consists of a primary and auxiliary component, which are homogeneously mixed and repeatedly rolled to form a viscous gelatinous fluid. It is composed of binders (resins), pigments, fillers, additives and solvents. It is used for various printing of books, packaging and decoration, architectural decoration and electronic circuit boards.

With the increase of social demand, the variety and output of inks have also expanded and increased accordingly.

Ethanol, isopropanol, butanol, propanol, butanone, ethyl acetate, butyl acetate, toluene, xylene and other organic solvents are often used in inks. Although most of these organic solvents will be eliminated after drying, the residual part will still cause harm to the human body.

In particular, the printed matter with a large inking area and a thick ink layer has more residual solvents, and the toxic substances released during use pollute the air and endanger people's health. One of the major problems with ink contamination is pigments. These pigment particles are very fine and have strong adsorption capacity, which contain heavy metal elements such as lead, chromium, cadmium, and mercury, all of which are toxic.