Near Infrared Reflecting Composition and Coverings for Architectural Openings Incorporating Same
Assignee3G Mermet Corporation
InventorsNilmini K. Abayasinghe, Philippe E. Paugois
Life of this patent
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Abstract
Disclosed are compositions that can be used in forming products with increased near infrared (IR) reflective capability. A composition can include IR reflective and/or IR transmissive non-white pigments and can be formed with suitable viscosity so as to successfully coat substrates, e.g., yarns, suitable for use in forming coverings for architectural openings, e.g., window coverings. Also disclosed are textile substrates coated with the compositions, including textile substrates coated with compositions that include abrasive, inorganic IR reflective dark pigments.
Claims20
A window covering comprising:
- a strand;
- an inner coating covering the strand, the inner coating being formed of a first plastisol that includes a first polyvinyl chloride, a first non-phthalate plasticizer, a first lubricant, a first stabilizer, a first viscosity reducing agent, and a first non-white infrared transparent pigment at a first concentration, wherein the inner coating is free of titanium dioxide;
- an outer coating covering the inner coating, the outer coating being formed of a second plastisol that includes a second polyvinyl chloride, a second non-phthalate plasticizer, a second lubricant, a second stabilizer, a second viscosity reducing agent, and a second non-white infrared transparent pigment at a second concentration, wherein the outer coating is free of titanium dioxide, wherein the second concentration is greater than the first concentration;
- and wherein
- the window covering reflects more than 30% of total impinging solar radiation, the window covering reflects more than 50% of the impinging solar radiation having a wavelength between about 700 nm and about 2500 nm, and the textile has a CIELAB L* value of about 50 or less.
A window covering comprising:
- first strands, the first strands comprising a first fiber or yarn, an inner coating covering the first fiber or yarn, the inner coating comprising a first polyvinyl chloride, a first non-phthalate plasticizer, a first lubricant, a first stabilizer, a first viscosity reducing agent, and a first non-white infrared transparent pigment at a first concentration, and an outer coating covering the inner coating, the outer coating comprising a second polyvinyl chloride, a second non-phthalate plasticizer, a second lubricant, a second stabilizer, a second viscosity reducing agent, and a second non-white infrared transparent pigment at a second concentration, wherein the second concentration is greater than the first concentration;
- second strands woven with the first strands;
- and
- wherein the window covering is free of titanium dioxide, reflects more than 30% of total impinging solar radiation, reflects more than 50% of impinging solar radiation having a wavelength between about 700 nm and about 2500 nm, and has a CIELAB L* value of about 50 or less.
Dependencies are inferred from the claim text.