Download - Ultra-Ever Shield - 2-13-14
ULTRA-EVER SHIELD™FABRIC PROTECTION
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• 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
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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
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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.
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Ever Shield’s Place in Fabric Finished Goods Supply Chain
Cotton/Synthetic Raw MaterialThread/Yarn Virgin Fabric
Finished FabricDyed Fabric
Finished GoodsRetail Outlets
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Fabric Finishing Process
Dry/Cure StageDip/Pad Stage
Dip/Pad Stage Dry/Cure Stage
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Ultra-Ever Shield™ 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).
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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+)
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Key Performance Results
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Conformal Fabric Coating
Ultra-Ever Shield™ 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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NYCO Quarpel 50/50 NYCO NOMEX Nylon NYCO Blend Polyester0
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40
60
80
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Water Repellency (AATCC 22)
Initial10 Washes20 Washes30 Washes
CommercialC8 DWR Ultra-Ever Shield™ DORCommercialC8 DWR
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NYCO Quarpel 50/50 NYCO NOMEX Nylon NYCO Blend Polyester0
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Oil Repellency (AATCC 118)
Initial
10 Washes
20 Washes
30 Washes
CommercialC8 DWR
CommercialC8 DWR Ultra-Ever Shield™ DOR
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Ultra-Ever Shield™ - Yahoo! News
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AppendixSBIR Program Test Results for Army Combat Uniform (ACU) 50/50 NYCO - Unclassified
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Key Performance ResultsProperty Control Fabric
(Current Capability) Performance Goals Status
Contact Angle ACU: 90° to 120° 100° to 150° (water & chemicals)
Achieved(108°-140°)
Moisture Vapor Permeability ACU: MVTR Minimal affect after UES
treatmentAchieved
(<5% reduction)
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 cyclesAchieved
(but with reduced omniphobicity than pre-abrasion)
Tensile Strength ACU <10% reduction Achieved (4% NYCO fabric; 9.4% Nomex fabric after 20 washes)
Air Permeability ACUMinimal to no
reduction after UES treatment
Achieved (Increased air permeability 9-22 CFM)
Flexibility ACU <5% in stiffness Achieved (4% stiffer, but same stiffness as DWR after 20 washes)
Colorfastness ACU Minimal to no change after UES treatment
Achieved(Moderate change)
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*Air Drying time required for fabric’s weight % to be < 1%
TESTS/ MEASUREMENTS TEST METHOD PERFORMANCE SPECIFICATIONS (All Passed)Surface Tension (Contact Angle) ASTM D5946 5 dynes/cm (water and organic solvents, & oil)Surface Tension (Contact Angle) ASTM D5946 21.6 dynes/cm (water, and organic solvents, & oil)Roll off Contact Angle ASTM D5946 < 5°Oil Resistance AATCC 118 8.00Surface Chemistry Analyses Bruker Quantex 200 Not determined yet. Surface Topography (SEM) NSRDEC’s SEM Surface and cross-sectionWicking Resistance NSRDEC’s in-house method > 30 min.Drop Roll-Off Permeation NSRDEC’s in-house method < 10 g.m-2/24 hSpray Rating AATCC 22 100.00Abrasion Resistance ASTM D3884 > 5000 cycles
Durability AATCC 135Pass after 5 launderings. (No contact angle reduction)
Tensile Strength ASTM D 5034; @breakWarp> 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./yd2Stiffness ASTM D 747 Warp/Fill: < 0.01 lb. max.
Dimensional Stability AATCC 135< 3% for both W and F directions , 1x and 5x
Thickness ASTM D 1777 < 12.5 µmColorfastness AATCC 61 2A (1x) Minimal to no color changesTorsional Flexibility ASTM F 392 >2000 cyclesHydrostatic Resistance ASTM D 751, Proc. B > 32 cm of waterMoisture Vapor Transmission Rate ASTM E96-2007, Proc B & BW B > 700 g.m2/24 hrs., BW > 5000 g.m2/24 hrs.Drying* NSRDEC’s in-house method < 30 min.
Additional Performance Specifications