Equipment is an important tool for corporate profits. We can only make full use of it by safely and correctly managing 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 points 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 the ink fountain is scrubbed, wait until the ink fountain roller stops rotating. The finger should always point to the place where the ink fountain roller rotates inward. Scrub ink roller, water roller must see the direction of rotation, the same way with the scrub roller. In the printing factory, due to the carelessness and irregular operation, when the ink roller or the roller is scrubbed, the accident that the hand is caught between the roller or the ink roller often occurs. The lessons of these blood should especially 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 operation of the printing machine and strictly and carefully follow the specifications.
Prevent accidents caused by equipment
The 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 need to be good at observing subtle issues and predicting consequences; managers must prevent problems by developing a scientific management system. As the saying goes, "a thousand miles of embankment, collapsed in the anthills", 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) At the stage, accidents may occur due to the inflexible operation of various components, installation and commissioning errors, or the lack of oil in the machine or the heating of the oil circuit.
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. The cleaning agent can generate explosive mist and flammable gas and is harmful to health. Therefore, it is necessary to prevent the cleaning agent from coming into contact with open flames and sparks.
2. Do not use AI and AII type cleaners. These cleaners are volatile and can generate flammable gas after gasification, causing explosion.
3. The cleaning agent should not be stored in the vicinity of the printing machine, nor can 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 the solvent cleaning agent is used to manually clean the printing machine, the solvent is not allowed to enter the drying device, and it is not possible to store the solvent 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, ketones, 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 ink cleaning agent, such as the low ignition point of the gasoline and the easy-to-use solvent in the air, may become a fire hazard.
Shanghai Donnelly Printing Co., Ltd.
Source: "Printing Technology - Equipment and Special Printing"
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 points 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 the ink fountain is scrubbed, wait until the ink fountain roller stops rotating. The finger should always point to the place where the ink fountain roller rotates inward. Scrub ink roller, water roller must see the direction of rotation, the same way with the scrub roller. In the printing factory, due to the carelessness and irregular operation, when the ink roller or the roller is scrubbed, the accident that the hand is caught between the roller or the ink roller often occurs. The lessons of these blood should especially 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 operation of the printing machine and strictly and carefully follow the specifications.
Prevent accidents caused by equipment
The 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 need to be good at observing subtle issues and predicting consequences; managers must prevent problems by developing a scientific management system. As the saying goes, "a thousand miles of embankment, collapsed in the anthills", 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) At the stage, accidents may occur due to the inflexible operation of various components, installation and commissioning errors, or the lack of oil in the machine or the heating of the oil circuit.
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. The cleaning agent can generate explosive mist and flammable gas and is harmful to health. Therefore, it is necessary to prevent the cleaning agent from coming into contact with open flames and sparks.
2. Do not use AI and AII type cleaners. These cleaners are volatile and can generate flammable gas after gasification, causing explosion.
3. The cleaning agent should not be stored in the vicinity of the printing machine, nor can 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 the solvent cleaning agent is used to manually clean the printing machine, the solvent is not allowed to enter the drying device, and it is not possible to store the solvent 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, ketones, 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 ink cleaning agent, such as the low ignition point of the gasoline and the easy-to-use solvent in the air, may become a fire hazard.
Shanghai Donnelly Printing Co., Ltd.
Source: "Printing Technology - Equipment and Special Printing"
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