Sarelli Interiors Textiles produces light curtain collections using four primary fiber categories: natural cotton, semi-synthetic viscose, semi-synthetic rayon, and synthetic polyester (PES). Sarelli textile engineers blend cotton, viscose, rayon, and polyester to achieve target weights between 80 GSM and 150 GSM for sheer window treatments.
Natural cotton fibers in Sarelli light curtains
Sarelli Interiors Textiles incorporates 100 percent natural cotton fibers into sheer fabrics to provide matte finishes and structural stability. Sarelli sourcing teams select long-staple cotton measuring 28 to 32 millimeters in length to prevent pilling during the weaving process.
Sarelli weavers combine cotton with polyester at a 30:70 ratio to create sheer fabrics that withstand 15,000 Martindale abrasion cycles. The cotton component absorbs up to 27 percent of its weight in moisture, which helps regulate humidity near window glass. Sarelli processes the raw cotton using mercerization, a chemical treatment that increases the tensile strength of the cotton yarn by 15 percent. Clients can review the exact percentages of natural fibers in the Fabrics Composition documentation.
Semi-synthetic viscose and rayon applications
Sarelli utilizes viscose and rayon fibers derived from purified wood pulp cellulose to replicate the light-reflecting properties of natural silk. Sarelli textile engineers specify viscose yarns with a denier count of 120 to ensure optimal drape in finished curtain panels.
Viscose and rayon materials constitute 45 percent of the Sarelli sheer fabric inventory. Sarelli manufacturing partners extrude the cellulose solution through spinnerets containing 400 microscopic holes to produce continuous filament yarns. Viscose yarns reflect 60 percent more ambient light than standard cotton yarns. Sarelli recommends dry cleaning for all viscose-blend curtains, because water exposure reduces the wet strength of viscose fibers by up to 50 percent. The Sheer Fabrics Production guidelines outline specific care requirements for cellulose-based textiles.
Synthetic polyester (PES) for structural durability
Sarelli Interiors Textiles integrates synthetic polyester (PES) into light curtain collections to guarantee dimensional stability and resist ultraviolet light degradation. Sarelli polyester yarns maintain their exact color values even after 500 hours of direct sunlight exposure.
Sarelli manufactures 100 percent PES sheer fabrics that weigh exactly 85 GSM. The polyester fibers melt at 250 degrees Celsius, allowing Sarelli technicians to heat-set permanent pleats into the curtain fabric. Sarelli tests the tear resistance of polyester fabrics using the Elmendorf tear testing method, consistently recording tear strengths above 15 Newtons. Polyester prevents the growth of mold spores in environments with relative humidity exceeding 80 percent. Buyers can explore the full range of synthetic options in the main Fabrics catalog.
Material blending ratios and performance metrics
Sarelli combines distinct fiber types to engineer fabrics that meet specific architectural requirements for light filtration and maintenance. Sarelli textile designers calculate precise blending percentages to balance the aesthetic drape of natural fibers with the longevity of synthetic polymers.
| Fabric Blend | Weight (GSM) | Light Transmission | Primary Application |
|---|---|---|---|
| 100% Polyester (PES) | 85 GSM | 65% | High-sunlight windows |
| 70% PES / 30% Cotton | 120 GSM | 45% | Living room sheers |
| 50% Viscose / 50% PES | 110 GSM | 55% | Luxury bedroom draping |
