Security issues that cannot be ignored in printing

Equipment is an important tool for corporate profits. We only have safety and control it properly. In order to make full use of it. Safe printing includes the safety of operators and the safety of equipment. This article is based on actual experience and describes the safety issues that should be observed during operation.

Correctly judge drum and water roller, ink roller rotation direction

1. When scrubbing the drum, the root of the palm of the hand is toward the inner rotational direction of the gap between the two drums, and the finger is directed toward the gap of the drum rotating toward the outside (the rotational direction of the drum needs to be selected). Otherwise, due to negligence, it is easy to bring the cotton cloth used for scrubbing the blanket into the drum and roll the bad blanket. In severe cases, it will crush the fingers.

2. When scrubbing the ink fountain, wait until the ink fountain roller stops rotating. The finger should always point to the position where the ink fountain roller rotates inward. Scrub ink roller, water roller must see the direction of rotation, the same way as the scrubbing roller. In the printing factory, due to the carelessness and non-standard operation, when the ink roller or roller is scrubbed, the accident that the hand is pinched between the roller or the ink roller often has occurred in these blood lessons, which should particularly attract the attention of the peers!

In order to maintain the personal safety of the operator and better maintain the printing equipment, it is necessary to concentrate on the rigorous, rigorous and careful operation in accordance with the specifications when operating the printing press.

Prevent accidents caused by equipment

Major accidents caused by factors such as the machine itself or the working environment should also cause the management personnel and each operator to attach great importance to it. Operators must be good at observing subtle issues and be able to predict the consequences; managers must adopt a scientific management system to prevent Suffered before it. As the saying goes, a thousand miles of embankment, collapsed in the ant hole, some details of improper management, more likely to lead to accidents, such as wire short circuit is the biggest hidden danger of fire, so the workshop must have adequate fire extinguishing equipment; new machine running (run-in) stage, Due to the inflexible operation of various components, installation and commissioning errors, or lack of oil in the machine, the heating of the oil circuit may result in heat generation, which may lead to accidents.

Understand the chemical and physical properties of printed materials

Many chemical materials are involved in the printing process. In the process of use, we must follow the prescribed procedures and pay attention to the following issues.

1. Cleaning agents can generate explosive mists and flammable gases and are harmful to health. Therefore, cleaning agents should be protected from open flames and sparks.

2. Do not use AI and AI type cleaners. These cleaners are volatile and can generate flammable gases after gasification, causing explosions.

3. The cleaning agent should not be stored in the vicinity of the printing machine, nor should it be stored near the UV drying device and the infrared drying device, and the container for the cleaning solution should be kept away from the heat source.

4. When solvent cleaning agents are used for manual cleaning of printing presses, solvents are not allowed to enter the drying device, and it is not possible to store solvents in or around the drying device. Otherwise, as the temperature of the solvent increases, there is a danger of explosion.

5. Aromatic hydrocarbon cleaning agents, such as benzene, toluene, esters, methyl ketone, and oxygenated hydrocarbon cleaning agents such as trioxyethylene, methyloxy, etc., are not suitable as cleaning agents for the ink roller.

6. In summer, the temperature is high. If the ventilation of the workshop is poor, the solvent in the ink and the cleaning agent of the ink, such as the low ignition point of gasoline and the easy-to-use solvent in the air, may become a fire hazard.