Precision Coating

• Strong ultra-thin coating capability
  It can be coated to extremely thin thicknesses, typically ranging from 1 to 20 µm, making it suitable for thin-layer applications such as optical films and protective films.
• High uniformity and stability
  It has excellent coating consistency and minimal film thickness variation, making it suitable for products requiring large-area coating.
• Suitable for low viscosity liquids
  It can stably coat functional liquids such as optical adhesives, protective layers, anti-fouling agents, and anti-fog agents.
• High resolution and patterned coating capabilities
  The coating area can be flexibly adjusted according to the design of the Gravure Roll, supporting non-overall coating and enabling various coating modes such as dot, line, and block coatings, with extremely high resolution and accuracy.
• High continuity, suitable for high-speed mass production
  It integrates well with roll-to-roll systems and has a high degree of automation in production lines.
• Simple structure and easy operation and maintenance
  The equipment has a straightforward design, operates stably, and is relatively easy to maintain.

• High-precision film thickness control
  Utilizing a precise slit coating head design and flow control, the coating thickness can be accurately controlled, typically ranging from 30 to 40 µm, with excellent thickness consistency.
• Full coverage uniform coating
  Suitable for achieving full coverage, uniform coating, and no edge or streak issues, especially suitable for large-sized substrates.
• High material utilization rate, no material waste
  It is a closed system (sealed liquid supply), which can reduce material waste and lower costs.
• Suitable for medium to high viscosity liquids
  Suitable for coating medium to high viscosity liquids, such as optical adhesives, conductive adhesives, and other adhesives, to avoid flow marks or unevenness.
• Suitable for continuous automated production
  It can be integrated with roll-to-roll systems, offering high efficiency and stability.
• Non-contact coating is suitable for pressure-sensitive substrates
  If the substrate is sensitive to mechanical stress, non-contact slot die coating technology is a better choice, avoiding any stress or damage to the substrate.

Treating volatile organic compounds (VOCs) generated during the coating process.
In precision coating processes, the use of solvent-based coating solutions often generates volatile organic compounds (VOCs). If these substances are not properly handled, they may affect product quality, human health, and even violate environmental regulations. Common treatment methods for effectively controlling VOC emissions are as follows:

• Hot air drying and exhaust system
  By configuring a dryer (such as a hot air dryer) and an exhaust system, the solvent components are rapidly evaporated after coating, and volatile gases are immediately discharged to prevent accumulation in the working environment. Hot air drying helps accelerate the evaporation of volatiles in the coating solution while maintaining the stability of other components, ensuring coating quality and compliance with environmental regulations.
• Organic waste gas treatment equipment
  • Activated carbon adsorption:VOCs with low adsorption concentration.
  • Thermal oxidizer:It efficiently decomposes organic gases into CO₂ and water.
  • Catalytic oxidation:Using catalysts to lower the decomposition temperature is energy-efficient and effective.
  • Condensation recovery:Suitable for the recovery of high-concentration, high-boiling-point solvents.
• Closed coating and drying system
  Enclosing the coating and drying areas helps to centrally collect and treat volatile gases, improving safety and recycling efficiency.
• Use low-VOC or solvent-free formulations
  Using water-based coatings, UV curing systems, or 100% solids formulations can reduce VOCs generation at the source.
• Process and material condition optimization
  By adjusting parameters such as solution formulation, substrate transfer speed, drying temperature, and air velocity, the effects of reducing VOCs release and improving coating quality can be achieved.