Reason (2): Overprinting due to other reasons is not allowed.
1, paper seepage, so that the front gauge, side gauge is not in place, resulting in overprinting is not allowed;
2. When the paper is cut and positioned, the paper in the same paper basket is not aligned because of paper rebound and skew; it is difficult to register during printing;
3, paper creases cause excessive deformation of the paper, causing misprints;
4, caused by electrostatic adsorption overprint is not allowed;
5, when loading, due to the different color version of the tensile deformation, different elasticity, resulting in overprinting is not allowed;
6. Inconsistent rubber blanket lining for each color group, inconsistent deformation, resulting in overprinting;
7. Improper overprint due to incorrect increase or decrease of cylinder liner;
8. The overprinting is not allowed due to the reasons for the paper feeding mechanism and the paper conveying mechanism.
The solution to the problem is:
1. Use adhesive-free, qualified adhesive materials, and apply talcum powder or sticky tape to improve the appearance of glue;
2, improve the accuracy of cutting, if necessary, can be re-cut, and to correct the paper, can not be deformed too large;
3. Install an electrostatic eliminator to control static electricity and install a humidifier to control the temperature and humidity in the workshop;
4, through proofing, so that the upper version, lining, blanket elastic consistency, in order to ensure that the standard;
5, a full set of units to replace the blanket or lining, so that the rubber roller of the various groups of elastic deformation consistent;
6, to improve the accuracy of the press to ensure the correct transfer of paper, paper.
Fault 9 Pattern Ink is inconsistent Cause: The plate pressure is uneven or the amount of ink on the plate is uneven.
The solution to the problem is:
1, adjust the pressure, re-pad plate;
2, adjust the ink fountain or ink system, so that the ink roller to the same amount of ink.
Fault 10 lines or dots at the paste, deformation causes: ink is too large, the contact pressure between the ink roller and the printing plate is too large or the printing pressure is the main reason leading to paste plate, dot distortion.
The solution to the problem is:
1, properly reduce the ink fountain roller ink volume;
2, to reduce the contact pressure between the ink roller and the printing plate;
3. Reduce printing pressure or make local adjustments to the plate table.
Fault 11 The print is dirty, dirty back, and sticking Cause: The ink is not completely dry or the ink is too large.
The solution to the problem is:
1, reduce the printing speed;
2, adjust the ink, add and release the appropriate additives;
3, can be stacked on the paper holder;
4, properly reduce the amount of ink.
Third, the die-cutting fault and troubleshooting 1 flat-press die cutting midsole paper is cut through the reasons: the thickness of the end of the paper is not uniform; a die-cut version of the label too much, the area is too large; die-cut version is not flat, precision Low; Die-cutting mechanism with low precision causes die-cut instability; die-cut liners are uneven or have a convex starting point; die-cutting blades are not selected correctly.
The solution to the problem is:
1, try to use a thicker bottom paper or a better uniformity of material for the bottom paper;
2. Improve the accuracy of die-cutting plates, and if necessary, ask professional manufacturers to manufacture them;
3, the use of a good leveling liner, and regular inspections, cleaning and replacement of material pads;
4, can be used after a large area of ​​printing after the first cut and then a small area die-cutting method;
5, use high-precision special adhesive die-cutting blade to make die-cut version.
Fault 2 When the die is cut in the back row, the edge of the paper is often broken and cannot be turned on normally. Cause: The die-cutting plate or the backing plate is not even, resulting in the partial cut off of the paper edge; the machine speed is too fast or too slow, causing the self-adhesive printing material to drag. The tension is not suitable; the waste edge is too narrow, the label size is too large or too slender, and it is not easy to discharge; the separation force between the label and the backing paper is too large, the paper edge cannot withstand the back tension; the label has a special shape, and the arrangement is unreasonable. Waste is difficult.
The solution to the problem is:
1. Improve die-cut version accuracy and reduce die-cut area;
2, die-cutting floor should be flat and regularly replaced;
3, correctly adjust the waste tension;
4. Set the size of waste paper edge correctly to increase its tensile strength;
5. Replace the label material with suitable peel force;
6, according to the label shape reasonable layout, making it easy to waste. (To be continued)
1, paper seepage, so that the front gauge, side gauge is not in place, resulting in overprinting is not allowed;
2. When the paper is cut and positioned, the paper in the same paper basket is not aligned because of paper rebound and skew; it is difficult to register during printing;
3, paper creases cause excessive deformation of the paper, causing misprints;
4, caused by electrostatic adsorption overprint is not allowed;
5, when loading, due to the different color version of the tensile deformation, different elasticity, resulting in overprinting is not allowed;
6. Inconsistent rubber blanket lining for each color group, inconsistent deformation, resulting in overprinting;
7. Improper overprint due to incorrect increase or decrease of cylinder liner;
8. The overprinting is not allowed due to the reasons for the paper feeding mechanism and the paper conveying mechanism.
The solution to the problem is:
1. Use adhesive-free, qualified adhesive materials, and apply talcum powder or sticky tape to improve the appearance of glue;
2, improve the accuracy of cutting, if necessary, can be re-cut, and to correct the paper, can not be deformed too large;
3. Install an electrostatic eliminator to control static electricity and install a humidifier to control the temperature and humidity in the workshop;
4, through proofing, so that the upper version, lining, blanket elastic consistency, in order to ensure that the standard;
5, a full set of units to replace the blanket or lining, so that the rubber roller of the various groups of elastic deformation consistent;
6, to improve the accuracy of the press to ensure the correct transfer of paper, paper.
Fault 9 Pattern Ink is inconsistent Cause: The plate pressure is uneven or the amount of ink on the plate is uneven.
The solution to the problem is:
1, adjust the pressure, re-pad plate;
2, adjust the ink fountain or ink system, so that the ink roller to the same amount of ink.
Fault 10 lines or dots at the paste, deformation causes: ink is too large, the contact pressure between the ink roller and the printing plate is too large or the printing pressure is the main reason leading to paste plate, dot distortion.
The solution to the problem is:
1, properly reduce the ink fountain roller ink volume;
2, to reduce the contact pressure between the ink roller and the printing plate;
3. Reduce printing pressure or make local adjustments to the plate table.
Fault 11 The print is dirty, dirty back, and sticking Cause: The ink is not completely dry or the ink is too large.
The solution to the problem is:
1, reduce the printing speed;
2, adjust the ink, add and release the appropriate additives;
3, can be stacked on the paper holder;
4, properly reduce the amount of ink.
Third, the die-cutting fault and troubleshooting 1 flat-press die cutting midsole paper is cut through the reasons: the thickness of the end of the paper is not uniform; a die-cut version of the label too much, the area is too large; die-cut version is not flat, precision Low; Die-cutting mechanism with low precision causes die-cut instability; die-cut liners are uneven or have a convex starting point; die-cutting blades are not selected correctly.
The solution to the problem is:
1, try to use a thicker bottom paper or a better uniformity of material for the bottom paper;
2. Improve the accuracy of die-cutting plates, and if necessary, ask professional manufacturers to manufacture them;
3, the use of a good leveling liner, and regular inspections, cleaning and replacement of material pads;
4, can be used after a large area of ​​printing after the first cut and then a small area die-cutting method;
5, use high-precision special adhesive die-cutting blade to make die-cut version.
Fault 2 When the die is cut in the back row, the edge of the paper is often broken and cannot be turned on normally. Cause: The die-cutting plate or the backing plate is not even, resulting in the partial cut off of the paper edge; the machine speed is too fast or too slow, causing the self-adhesive printing material to drag. The tension is not suitable; the waste edge is too narrow, the label size is too large or too slender, and it is not easy to discharge; the separation force between the label and the backing paper is too large, the paper edge cannot withstand the back tension; the label has a special shape, and the arrangement is unreasonable. Waste is difficult.
The solution to the problem is:
1. Improve die-cut version accuracy and reduce die-cut area;
2, die-cutting floor should be flat and regularly replaced;
3, correctly adjust the waste tension;
4. Set the size of waste paper edge correctly to increase its tensile strength;
5. Replace the label material with suitable peel force;
6, according to the label shape reasonable layout, making it easy to waste. (To be continued)
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