Static electricity has a serious impact on the production of composite bags
(Summary description)
In the process of producing products in flexible packaging factories, it is easy to generate static electricity. However, these static electricity have a serious impact and harm on the production of plastic composite bag packaging bags, which often leads to packaging bag printing failures and even personnel hazards. The reason for the loud tearing of plastic bags? Today we will explain to you, or is it just because the sound of plastic bags is particularly easy to feel? Is it the characteristics of the plastic bag itself? So what is the harm of static electricity to flexible packaging manufacturing? The following editor of composite bag manufacturers will tell you about it.
Composite bag
1. The static electricity generated on the printing surface of the cutting metal wire composite film will be transferred to the ink through the printing plate. The ink contains a lot of unsaturated groups and particulate fillers. The static electricity will be adsorbed on the ink particles and further absorb more particles to become larger ink particles. Finally, due to the electrostatic adsorption characteristics, the ink particles become larger, leading to the appearance of printed cutting lines. Therefore, static electricity is also one of the main reasons for printing cutting lines.
2. Make flexible packaging products adhere to each other-static electricity will cause the printed materials to adhere to each other, making it difficult to separate. For paper printing, there will be unfavorable consequences, such as double sheets, blank paper, irregular paper collection, inaccurate overprinting, and increased losses. For plastic printing, there are phenomena such as sticky bags, poor openings, and dust absorption.
3. Lead to missing printing-if the surface of the printed matter is electrostatic, they will absorb the dust floating in the air, which hinders the transfer of ink and causes the printed matter surface to lack printing spots.
4. Make the winding end surface irregular-when the film static electricity is not completely eliminated, due to the winding characteristics of winding, when hundreds or even multiple layers of film are wound together, the static electricity on the film repels each other, and the interlayer film repels each other, resulting in Irregular winding. When the horizontal parallel accuracy of the equipment is low, this is also the main reason for the irregular winding.
5. A large amount of static electricity generated by the winding causes a fire-the winding is a multilayer winding structure, the electrostatic field energy accumulated in each layer is not large, and the static electricity per layer may be only a few hundred volts. However, when hundreds or even multiple layers of films are wound together, the voltage and energy of its electrostatic power plant are very large. In severe cases, the voltage can reach more than 20 kV and reach more than 100 kV. The winding is close to the final color printing unit. When high-voltage static discharges solvent-based ink, it is easy to cause a fire. Many fires prove that the collected static electricity is the most important cause of fire.
6. Lead to ink spots and beards-static electricity on the substrate of the printed matter will be transferred to the ink through the printing plate, causing the ink to carry static electricity. When the ink is transferred to the surface of the printed matter, since the ink has static electricity and the printed matter substrate has static electricity, static electricity or neutralizing discharge or the same sex repel each other, and normal printing cannot be realized. In light screen printing and hanging screen printing, the phenomenon of "dots lost" often occurs, which seems to be uneven ink application, which seems to be caused by the poor fluidity of the ink, but is actually caused by static electricity. This is called "electrostatic ink spots". In solid printing, the electrostatic ink will discharge at the edge of the solid on the printed product, and there will be hairy printing defects on the edge of the solid, which is called "electrostatic ink whisker".
7. Electronic equipment damage-The current and electromagnetic field during electrostatic discharge will interfere with the normal use of electronic equipment, and in severe cases will cause damage to the electronic equipment. In actual production, the tension controller and peach computer installed in the winding and unwinding are easily damaged. The root cause is static electricity.
8. Electric shock to the operator-when the static electricity accumulates to a certain level, it will cause harm to the operator, and it is not convenient for the operator to perform normal production.
Information
In the process of producing products in flexible packaging factories, it is easy to generate static electricity. However, these static electricity have a serious impact and harm on the production of plastic composite bag packaging bags, which often leads to packaging bag printing failures and even personnel hazards. The reason for the loud tearing of plastic bags? Today we will explain to you, or is it just because the sound of plastic bags is particularly easy to feel? Is it the characteristics of the plastic bag itself? So what is the harm of static electricity to flexible packaging manufacturing? The following editor of composite bag manufacturers will tell you about it.
Composite bag
1. The static electricity generated on the printing surface of the cutting metal wire composite film will be transferred to the ink through the printing plate. The ink contains a lot of unsaturated groups and particulate fillers. The static electricity will be adsorbed on the ink particles and further absorb more particles to become larger ink particles. Finally, due to the electrostatic adsorption characteristics, the ink particles become larger, leading to the appearance of printed cutting lines. Therefore, static electricity is also one of the main reasons for printing cutting lines.
2. Make flexible packaging products adhere to each other-static electricity will cause the printed materials to adhere to each other, making it difficult to separate. For paper printing, there will be unfavorable consequences, such as double sheets, blank paper, irregular paper collection, inaccurate overprinting, and increased losses. For plastic printing, there are phenomena such as sticky bags, poor openings, and dust absorption.
3. Lead to missing printing-if the surface of the printed matter is electrostatic, they will absorb the dust floating in the air, which hinders the transfer of ink and causes the printed matter surface to lack printing spots.
4. Make the winding end surface irregular-when the film static electricity is not completely eliminated, due to the winding characteristics of winding, when hundreds or even multiple layers of film are wound together, the static electricity on the film repels each other, and the interlayer film repels each other, resulting in Irregular winding. When the horizontal parallel accuracy of the equipment is low, this is also the main reason for the irregular winding.
5. A large amount of static electricity generated by the winding causes a fire-the winding is a multilayer winding structure, the electrostatic field energy accumulated in each layer is not large, and the static electricity per layer may be only a few hundred volts. However, when hundreds or even multiple layers of films are wound together, the voltage and energy of its electrostatic power plant are very large. In severe cases, the voltage can reach more than 20 kV and reach more than 100 kV. The winding is close to the final color printing unit. When high-voltage static discharges solvent-based ink, it is easy to cause a fire. Many fires prove that the collected static electricity is the most important cause of fire.
6. Lead to ink spots and beards-static electricity on the substrate of the printed matter will be transferred to the ink through the printing plate, causing the ink to carry static electricity. When the ink is transferred to the surface of the printed matter, since the ink has static electricity and the printed matter substrate has static electricity, static electricity or neutralizing discharge or the same sex repel each other, and normal printing cannot be realized. In light screen printing and hanging screen printing, the phenomenon of "dots lost" often occurs, which seems to be uneven ink application, which seems to be caused by the poor fluidity of the ink, but is actually caused by static electricity. This is called "electrostatic ink spots". In solid printing, the electrostatic ink will discharge at the edge of the solid on the printed product, and there will be hairy printing defects on the edge of the solid, which is called "electrostatic ink whisker".
7. Electronic equipment damage-The current and electromagnetic field during electrostatic discharge will interfere with the normal use of electronic equipment, and in severe cases will cause damage to the electronic equipment. In actual production, the tension controller and peach computer installed in the winding and unwinding are easily damaged. The root cause is static electricity.
8. Electric shock to the operator-when the static electricity accumulates to a certain level, it will cause harm to the operator, and it is not convenient for the operator to perform normal production.
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