Pearl Coating
Uses optical particles to control reflectivity and improve transparency
Products
Smart agriculture, made possible by Yuk-il Co., Ltd.’s technology
High-performance shading solutions
to optimize greenhouse lighting:
YI-ALS/PH Series
Pearl Coating Overview
A technology that coats micro pearl particles on high-transparency films or screens to adjust reflectivity and improve light transmission.
Principle of Pearl Coating- Uniformly applies optical particles or metal oxides (not real pearls) to the film surface
- Controls light transmission and diffusion to optimize the light environment
High Light Transmission
Excellent light penetration, ideal for crop photosynthesis
Thermal Retention
Maintains indoor temperature for improved energy efficiency
Crop Growth Acceleration
Enhances photosynthesis to improve growth rate and quality
Screen Comparison
Other Brands
(Diffused Light Type)
(Diffused Light Type)
Medium (diffused)
Promotes even photosynthesis
Stable growth
Heat suppression (cooling effect)
Effective shading (reduces heat stress)
Lower thermal retention
Leafy greens (lettuce, spinach, etc.)
VS
Light Transmission
Photosynthesis Effect
Growth Speed
Greenhouse Temperature Control
Summer Effect
Winter Effect
Recommended Crops
YI Woven Screens
(High Transmission)
(High Transmission)
High (direct)
Boosts strong photosynthesis
Faster growth
Supports higher internal temps
Risk of overheating in high temps
Excellent thermal retention
Fruit vegetables (tomato, cucumber, strawberry, etc.)
YI Screen vs. LS (EU) Screen
Which is better?
LS (EU) Screen
Best for uniform growth and cooling during summer
PH (YI) Screen
Ideal for winter insulation and fast crop growth
Why Choose YI Screens?
Our proprietary weaving method includes 15 strands of acrylic yarn spaced at 20cm intervals for superior humidity control, thermal retention, and durability
YI-ALS/PH15 (Flame Retardant, Horizontal Installation)
- Woven PET film + acrylic yarn
- Highly durable and excellent in thermal retention and dehumidification
- 15% shading, 47% thermal retention (flame retardant)
- Maintains greenhouse temperature by increasing light transmission in winter
- Enhances crop growth with light diffusion, ideal for smart greenhouses
Heat Retention
72%
Tensile Strength (M/5cm)
Lengthwise 240, Widthwise 88
Light Fastness
Grade 4 or higher
Light Transmittance
22.6%
Shading Rate
85%
YI-ALS/PH55 (Fire-Retardant, Internal Horizontal Type)
- PET Film + Acrylic Yarn + 1:1 Combination with Aluminum Film
- 55% Shading Rate, 60% Heat Retention (Fire Retardant)
- Reduces greenhouse temperature in summer by reflecting sunlight
- Maximizes shading and insulation by preserving radiant heat in winter
Heat Retention
60%
Tensile Strength (M/5cm)
Lengthwise 230, Widthwise 54
Light Fastness
Grade 4 or higher
Light Transmittance
39.8%
Shading Rate
55%
YI-ALS/PH85 (Fire-Retardant, Internal Horizontal Type)
- PET Film + 1:3 Combination with Aluminum Film
- 85% Shading Rate, 72% Heat Retention (Fire Retardant)
- Maximizes sunlight reflection to lower greenhouse temperature
- Minimizes radiant heat loss at night, enhancing insulation effect
- Excellent dehumidifying and shape retention with reinforcing tapes
Heat Retention
72%
Tensile Strength (M/5cm)
Lengthwise 240, Widthwise 88
Light Fastness
Grade 4 or higher
Light Transmittance
22.6%
Shading Rate
85%