Due to the fierce competition in the market, there are more and more short-form tasks in gravure plastic printing. In this way, the proportion of plate-making fees in the entire cost often exceeds 50%. As a result, there is a need to save platemaking costs.
If you further analyze the composition of plate-making costs, you will find that there are full-bottom white plates in each set of printing plates. So, can we start from saving plate-making costs and use four full-plate white plates together?
Four schemes of "saving" full white version
Theoretically, the role of the white background is to be used as a background color, to increase the opacity of the plastic film, so that other colors can be better expressed; therefore, the white background can be used as a single. However, in actual use, due to the limitations of the supplier's printing machine structure, printing plates of different diameters cannot be used in one printing machine at the same time, so each set of printing plates must have its own full white plate. How to "save" the white version with full background? From a practical point of view, there are the following options:
1. Change the structure of the printing press: from the current motor drive of the printing press, the shaft drive between the units, to the independent motor drive of the last unit, so that the surface linear speed of the plate cylinders of different diameters are the same.
2. Use white inner composite material.
3. Add equipment: install a white plate coating device behind the existing printing machine.
4. Change the printing process. After printing other colors, the film is printed on the machine and then printed in white.
Feasibility analysis of four schemes
From a technical perspective, the advantages and disadvantages of each program are as follows:
1. Change the structure of the printing machine
Advantages: It does not change the original process and does not add equipment.
Disadvantages: there are risks, high requirements on the mechanical and electrical level of the printing plant.
2. Use white inner composite material
Technical feasibility: proved feasible after small-scale trial production.
Advantages: No risk, no investment, indirectly increase the number of colors that can be printed by the printing press.
Disadvantages: high requirements for white inner composite materials, increasing costs; it is more difficult to control colors during printing.
3. Install white plate coating device behind the existing printing machine
Technical feasibility: no difference with current technology.
Advantages: Indirectly increase the number of colors that can be printed by the printing press, without increasing the material cost.
Disadvantages: There is equipment investment; it is difficult to control the color when printing.
4. After printing other colors, the film is printed white on the machine for the second time
Technical feasibility: no difference with current technology.
Advantages: Indirectly increase the number of colors that can be printed by the printing press, without increasing the material cost.
Disadvantages: high equipment loss and long printing time; difficult to control during the first printing.
After synthesizing the above schemes, it is recommended to adopt the combination of scheme 2 and scheme 4, and decide the specific method in production according to the task and the actual situation of the printing press. According to relevant personnel test, after adopting the plan, in the subsequent production, similar short-term tasks can save 6% of the total cost.
Product
- Step wheel 80x32 bearing 6203 for escalator spare part
- Step wheel 80x25 bearing 6304 for escalator spare part
- Step wheel 70x25 bearing 6204 for escalator spare part
- Step wheel 76x25 bearing 6204 for escalator spare part
- Step wheel 80x25 bearing 6006 for escalator spare part
Specifications
- Long life & stable
- Factory made
Rollers for Escalator Spare Part, Escalator Reversing Chainwheel, Escalator Step Chainwheel, Step Wheel Bearing
Ningbo Xinda Elevator Traction Technology Co., Ltd. , https://www.xinda-elevator.com