Product Development History In the mid-2000s, an Army General challenged the Soldier Research Center to develop a “self-cleaning” uniform Small Business Innovation Research (SBIR) Team: US Army Soldier RD&E Center (Natick, MA) Luna Innovations, Inc. (Blacksburg, VA) 6 years and over $2M of SBIR funding (Phases I – IIB)
Product Development History Goals: Highly repellent, durable coated textiles that resist attraction of liquid and solid contaminants Minimize battlefield logistics burden - less laundering; detergents unnecessary
Product Development History Coating was lab and field-tested by US Army Mid 2013 – Product is determined to be ready for commercialization November 2013 - UltraTech International, Inc. obtained the worldwide, exclusive commercial rights September 2014 – Product is optimized for standard applications and commercial production commences.
EverShield’s Place in Fabric Finished Goods Supply Chain Cotton/Synthetic Raw Material Thread/Yarn Virgin Fabric Dyed Fabric Finished Fabric Retail Outlets Finished Goods
Fabric Finishing Process Dip/Pad Stage Dry/Cure Stage Dip/Pad Stage Dry/Cure Stage
EverShield™ the first Durable Omni Repellent A new category of High Performance Textile Treatments: Durable Omni Repellent (DOR) Omniphobic = Hydrophobic + Oleophobic Water, 155o Octane, 133o Dual structured coated Nomex fabric showing resistance to water and octane (oil/hydrocarbon).
DOR vs DWR Durable Water Repellent (DWR) treatments repel water and few other liquids (but have limited durability). Durable Omni Repellent (DOR) exceed DWRs by producing performance in textiles that: Are superhydrophobic Are oleophobic Repel debris and resist staining Retains most performance after numerous washings (50+)
Key Performance Results
Conformal Fabric Coating EverShield™ establishes a polymer coating that encapsulates each fiber of the material and creates durability through cross-linking the individual polymers in a protective matrix.
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Appendix SBIR Program Test Results for Army Combat Uniform (ACU) 50/50 NYCO - Unclassified
Key Performance Results Property Control Fabric (Current Capability) Performance Goals Status Contact Angle ACU: 90° to 120° 100° to 150° (water & chemicals) Achieved (>150°) Moisture Vapor Permeability ACU: MVTR Minimal affect after UES treatment Laundering ACU: Current laundering requirement Minimal to no laundering required Achieved Minimal field laundering is required Wash Durability ACU: DWR wears off after repeated washings Durable and abrasion resistant coating Achieved Durable @ 20 repeated washes Abrasion Resistance ACU: DWR wears off after repeated abrasion Retains omniphobic properties after 3000 abrasion cycles (but with reduced omniphobicity than pre-abrasion) Tensile Strength ACU <10% reduction (<5% NYCO fabric) Air Permeability Minimal to no reduction after UES treatment Flexibility <5% in stiffness Colorfastness Minimal to no change after UES treatment (Moderate change)
Additional Performance Specifications TESTS/ MEASUREMENTS TEST METHOD PERFORMANCE SPECIFICATIONS (All Passed) Surface Tension (Contact Angle) ASTM D5946 21.6 dynes/cm (water, and organic solvents, & oil) Roll off Contact Angle < 5° Oil Resistance AATCC 118 7A Surface Topography (SEM) NSRDEC’s SEM Surface and cross-section Wicking Resistance NSRDEC’s in-house method > 30 min. Drop Roll-Off Permeation < 10 g.m-2/24 h Spray Rating AATCC 22 100 Abrasion Resistance ASTM D3884 > 5000 cycles Durability AATCC 135 Pass after 5 launderings. (No contact angle reduction) Tensile Strength ASTM D 5034; @break Warp> 200 lb.; fill> 125 lb.; Elongation: Warp/Fill > 35 % Air Permeability ASTM D 737 < 0.2 ft3 of air/min./ft2 Weight ASTM D 3776 < 0.1 oz./yd2 Stiffness ASTM D 747 Warp/Fill: < 0.01 lb. max. Dimensional Stability < 3% for both W and F directions , 1x and 5x Thickness ASTM D 1777 < 12.5 µm Colorfastness AATCC 61 2A (1x) Minimal to no color changes Torsional Flexibility ASTM F 392 >2000 cycles Hydrostatic Resistance ASTM D 751, Proc. B > 32 cm of water Moisture Vapor Transmission Rate ASTM E96-2007, Proc B & BW B > 700 g.m2/24 hrs., BW > 5000 g.m2/24 hrs. Drying* < 30 min. *Air Drying time required for fabric’s weight % to be < 1%