Unveiling the World of Doctor Blades: Materials and Parameters by JCTPRINT

    Doctor blades, though seemingly unassuming, hold a pivotal role in the realms of printing and coating. They are the unsung heroes, responsible for regulating the ink and coating application onto substrates, ensuring impeccable print quality and smooth coatings. In this article, we will delve into the various materials used in doctor blades and explore the key parameters that make JCTPrint's doctor blades stand out.

    Materials Used in Doctor Blades:

1. Carbon Steel Doctor Blades: Carbon steel doctor blades stand as the most common and cost-effective option. They find their application in general printing and coating with various inks, pigments, and coatings. However, when handling specialty inks or coatings, carbon steel blades might experience faster wear.

2. Stainless Steel Doctor Blades: Stainless steel doctor blades boast exceptional corrosion resistance and wear resistance, making them ideal for handling corrosive coatings and solvents. They outlast carbon steel blades but come at a slightly higher cost.

3. High-Speed Steel Doctor Blades: High-speed steel doctor blades exhibit superior wear resistance, making them suitable for high-speed coating processes with more abrasive coatings and inks. They shine in handling specialty effect inks and pigments.

4. Polyurethane Doctor Blades: Polyurethane doctor blades feature a flexible material, catering to irregular or uneven surfaces. They adapt well to curved surfaces, ensuring a uniform coating application.

5. Ceramic Doctor Blades: Ceramic doctor blades boast remarkable hardness and wear resistance, ideal for high-viscosity and abrasive coatings and inks. They find their niche in specialized ink and coating applications.

6. Polyurethane Coated Doctor Blades: These blades consist of a layer of polyurethane material coated over carbon steel or stainless steel blades, providing enhanced wear resistance and improved coating effectiveness.

7. PTFE Doctor Blades: PTFE (Polytetrafluoroethylene) doctor blades possess a non-stick material property, making them suitable for handling sticky coatings and adhesives, preventing unwanted adhesion.

8. Doctor Blade Strips: Doctor blade strips, usually made from rubber or polyurethane materials, are designed for narrower areas or applications that require high precision coating.

Key Parameters of JCTPrint's Doctor Blades:

• • Material: SK4/C100/20C/20CA Stainless Steel
  • Hardness: 1960N (580HV±15)
  • Width (Height): 10-60mm
  • Thickness: 0.152mm/0.20mm
  • Edge Width: 1.3mm/1.4mm
  • Edge Thickness: 0.07mm/0.09mm/0.10mm
  • Length per Box: 100 meters
  • Unevenness: 0.04-0.06 mm/m
  • Surface Roughness: Ra≤0.2
  • Working Speed: 0-180 meters/minute

    These parameters outline the essential characteristics of JCTPrint's doctor blades, encompassing material composition, hardness, size, thickness, edge width, and thickness. Hardness values determine the blades' wear resistance and ink scraping efficiency, while edge width and thickness dictate the blades' ink scraping effect. Unevenness and surface roughness serve as indicators of blade surface quality. The length per box denotes the supplied length of doctor blades, customizable to meet production demands. The working speed indicates the suitable speed range of the blades during coating or printing processes.

    The world of doctor blades unfolds with a multitude of materials and key parameters that cater to diverse printing and coating applications. Understanding the strengths and applications of each material empowers industry professionals to optimize their processes, enhance efficiency, and prolong the lifespan of doctor blades. JCTPrint's doctor blades, characterized by their high-quality materials and precise parameters, serve as the ideal companions for achieving exceptional results in printing and coating applications.

    If you have any questions about doctor blade, JCTPRINT can provide you with professional answers for free.