Talking about ink cleaner 2

Before and after the 1990s, European countries and European countries passed the Environmental Protection Law (VOC). According to the provisions of the law, all organic fertility must meet the following requirements:
1. There should be no smell of organic solvents outside the job shop.
2. The concentration of volatile substances in the job shop must be lower than:
1) Volatile organic solvents 50 m/m3;
2) Carbon monoxide 100 mg/m3;
3) Nitric oxide 100 mg/m3.
Obviously, this law is closely related to the printing industry.
In the face of VOC law, printing houses in Western countries must strictly abide by it, even at the expense of printing quality and raising costs.
While considering the development of the printing industry, China must also look at the issue from the perspective of environmental protection: In the printing industry, the emission of harmful gases and the use of hazardous liquids and solids and the discharge of waste should be strictly controlled.
In view of the fact that China’s government has already taken environmental protection as a basic national policy and must realize the coordinated development of economic construction and environmental protection and the sustainable development of the national economy, they must consider the issue of environmental protection when formulating plans for the development of the printing industry. Formulate practical and effective measures.
Some of the cleaning agents originally used in the printing industry in China are poisonous in their own right, and all of the solvent's hydrocarbon emissions cause pollution to the atmosphere. At the same time, the cleaning agents used in the offset printing process must be thoroughly reformed.
In order to limit pollution and satisfy the VOC law, printing plants generally use water-in-oil emulsion cleaners to clean rubber rollers and blankets.
Water-in-oil emulsion cleaners can not only completely eliminate the dangers of certain harmful substances in solvent-based cleaning agents to printing workers, prevent organic solvents from polluting the atmosphere, but also greatly increase the flash point of cleaning agents and improve the fire safety of printing workshops. To improve the quality of the overall environment.
The so-called water-in-oil emulsion type cleaning agent means that the cleaning agent is made into an emulsion, and the external phase is oil (oil or solvent); the internal phase is water; and the interface uses a surfactant as a stabilizer. Due to the presence of water, the volatility of the oil or solvent of the external phase is greatly reduced, and the content of organic volatiles in the air is greatly reduced. And the presence of water greatly increases the flash point of the solution; it increases the fire safety of the printing shop.
The key to the study of water-in-oil emulsion cleaners is to find suitable solvents and surfactants to solve the problems of cleaning speed, protection of blankets and rollers, and emulsion stability. This requires a lot of repeated experiments.
Its reference formula is as follows: Solvent and solubilizer: 45% Surfactant: 5% Water: 50%
Although water-in-oil emulsion cleaners have some unsatisfactory qualities, such as the best quality cleaner, the drying rate is not as fast as gasoline, but analyzing the advantages and disadvantages, it should be the cleaning agent of the printing shop. .
There are different grades of cleaning agents in the market. The high-grade cleaning agents should have faster cleaning and drying speeds, and have no impact on the blankets and rollers. The solvents used in them meet the requirements of green environmental protection. Low-grade cleaners are lacking in the impact on the factory's rubber and plastic bottles, or they are slow to clean.