The L1-500 Series represents a cornerstone product family within LEAPKA’s range of solar management textiles, characterized by a precise 5% openness factor designed for balanced environmental control. This article provides a detailed, technical exposition of the entire series, cataloging its standardized parameters and diverse color offerings for architects, specifiers, and fabricators seeking reliable data for project integration. As a premier example of Sunscreen fabrics, this series combines consistent engineering with aesthetic choice.

Product Spectrum: A Color for Every Design Intent

The series is offered in a spectrum curated to address both universal and niche design requirements:

• Pure Neutrals: L1-501 White, L1-505 Light Grey, L1-506 Dark Grey, L1-509 Black. These provide foundational, monochromatic solutions for modern architectural statements where color consistency and subtlety are paramount.

• Warm Tonalities: L1-502 White/Beige, L1-507 Black/Brown. These variants introduce warmth and sophisticated depth, suitable for environments aiming for a residential, welcoming, or organic feel.

• Graphic Contrasts: L1-503 White/Grey, L1-508 Black/Grey, L1-512 Black/White. Engineered for visual impact, these two-tone fabrics add a dynamic, textural layer to interiors.

• Accent Color: L1-510 White/Blue. A distinctive option for projects requiring a specific color cue or thematic expression.

Unified Engineering Foundation

All products within the L1-500 series are manufactured to identical, rigorous physical and mechanical standards, ensuring predictable performance irrespective of color selection.

• Material Architecture: Composed of 30% high-tenacity polyester yarn and 70% PVC coating. This composite structure leverages the tensile strength and stability of polyester, protected and enhanced by a durable PVC layer that provides UV resistance, colorfastness, and soil resistance.

• Grammage & Substance: A surface density of 420 g/m² (±5%). This calibrated weight ensures the fabric possesses sufficient body for smooth operation in roller systems, resistance to billowing in air currents, and overall durability, while remaining manageable for fabrication.

• Standard Format Availability: Produced in industry-standard widths of 200 cm (78”), 250 cm (98”), and 300 cm (118”), each supplied on 35-meter long rolls. This facilitates efficient project planning and material yield optimization.

Defining Performance Metrics: The 5% Openness Paradigm

The series’ core functional identity is its optical specification.

• Openness Factor: Precisely 5% (±0.5%). This is not an arbitrary value but an engineered sweet spot. It allows for significant diffusion of direct sunlight, effectively eliminating problematic glare on work surfaces and digital displays—a key concern in offices and homes. Simultaneously, it maintains a clear, unobstructed outward view and permits the ingress of ample soft, natural light, preventing interiors from feeling dark or enclosed.

• Weave Geometry: Achieved via a 46 x 44 thread count per square inch, using precisely calibrated 0.32mm diameter yarns. This fine, tight plain weave is responsible for the fabric’s uniform appearance, smooth hand, and its ability to consistently deliver the specified optical performance across its entire surface.

• Physical Profile: A thickness of 0.60 mm (±5%) contributes to a compact roll diameter in cassette systems and ensures consistent handling during the cutting and sewing processes.

Compliance & Durability Data

As with all LEAPKA products, the L1-500 series is manufactured to comply with relevant international standards for fire safety (achieving a Class B rating) and is subjected to accelerated aging tests to verify long-term performance, affirming its status as dependable Roller blinds Fabrics.