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CNY PRINTER

Talk to Us Now
  • HOME
  • PRODUCTS 
    • Screen printing machine
    • Flexographic printing machine
    • Mask Machine
    • Digital printing machine
    • Printing Accessories
  • VIDEOS 
    • Screen Printer
    • Flexo Printer Videos
    • Mask Machines Videos
    • Digital Printer
  • FAQ
  • SAMPLES
  • FEEDBACKS
  • COMPANY GALLARY
  • PRINTING KNOWLEDGE
  • CONTACT US
  • …  
    • HOME
    • PRODUCTS 
      • Screen printing machine
      • Flexographic printing machine
      • Mask Machine
      • Digital printing machine
      • Printing Accessories
    • VIDEOS 
      • Screen Printer
      • Flexo Printer Videos
      • Mask Machines Videos
      • Digital Printer
    • FAQ
    • SAMPLES
    • FEEDBACKS
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How to Improve the Accuracy of Multi-color Overprinting in Screen printing?

 

· Screen Printing Knowledges

There are many screen printing processing companies and many screen printing machinery and equipment, but one of the problems that plague many operators is the issue of overprint accuracy. How to improve the screen printing overprinting accuracy? It is the goal of every screen printing worker pursues.

To improve the multi-color overprinting accuracy of screen printing, we should consider two aspects first.

  • We should consider the screen plate quality and the accuracy of the screen plate.
  • We should consider positioning control when screen printing.

Today we will discuss "How to ensure the accuracy of screen plate when making"

1.Selection of screen frame materials

In the selection of screen frame materials, we generally use LY12, LF2, and other high-class alloy aluminum square tube profiles. Specifications choose width 20mm, length 20mm, thickness up to 2mm or around. We can use special reinforced aluminum alloy materials if necessary. The four corners are processed with argon arc welding. In this case, the frame strength is high, stability is good, and precision is naturally high.

2. The selection of screen mesh

Currently, the most used are nylon screen mesh and polyester screen mesh. The heat resistance of nylon screen mesh is poor, and is prone to thermoplastic deformation when heated, making the tension uneven and affecting the quality of screen printing. The polyester screen mesh has better heat resistance and is dimensionally stable, and the graphics do not change significantly due to changes in temperature and humidity. To ensure the accuracy of screen printing graphics, it is best to use monofilament polyester screen mesh. At the same time, use the screen mesh with big hole numbers, finer yarn diameter, and smaller mesh holes. It is better to choose yellow or brownish yellow mesh, and the pattern will not be haloed.

3. The Mesh Stretch Device.

Mesh stretch is an important step. To make high-precision printing graphics first require mesh stretch to meet the quality requirements. Best use of the pneumatic mesh stretch device. Mesh stretch quality requirements are as follows: mesh stretch tension appropriate and uniform. Keep the vertical warp and weft, the mesh yarn diameter does not bend.

Click Here to Check the Details of Printing Machines

 

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