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US 12,501,954 B2Granted
Multilayered multifunctional heat-management material
AssigneeColumbia Sportswear North America, Inc.
InventorsHaskell Beckham, Rebecca Lynn Johnson, David Milton Anderson
Life of this patent
Estimating the term…
Abstract
A heat-management material that includes a base fabric having an externally facing surface and an internally facing surface; and a plurality of multilayered multifunctional heat-management elements coupled to the externally facing surface of the base material wherein the heat-management material has weighted average thermal emittance of less than 0.8 (or 80%). The multilayered multifunctional heat-management elements include a low thermal emittance layer and a high solar absorptance layer.
Claims16
A heat-retention material, comprising:
- a base fabric having an externally facing surface and an internally facing surface;
- and
- a plurality of individualized multilayered multifunctional heat-retention elements disposed discontinuously on the externally facing surface of the base fabric, wherein placement and spacing of the plurality of individualized multilayered multifunctional heat-retention elements leaves a portion of the base fabric uncovered between the elements, each of the plurality of multilayered multifunctional heat-retention elements comprising:
- a low thermal emittance layer directly attached to the base fabric, wherein the low thermal emittance layer restricts heat transmission outward through the externally facing surface of the base fabric;
- and
- a high solar absorptance layer disposed on top of the low thermal emittance layer to form an outermost surface of the multilayered multifunctional heat-retention elements, wherein the high solar absorptance layer comprises a polymeric overlayer that traps solar radiation, and wherein the polymeric overlayer comprises a colorant that increases the solar absorption of the high solar absorptance layer,
- wherein the heat-retention material has a weighted average thermal emittance that is between 0.1 and 0.8.
4 more elements
An article of bodywear comprising:
- a heat-retention material, the heat-retention material having:
- a base fabric having an externally facing surface and an internally facing surface;
- and
- a plurality of individualized multilayered multifunctional heat-retention elements disposed discontinuously on the externally facing surface of the base fabric, wherein placement and spacing of the plurality of individualized multilayered multifunctional heat-retention elements leaves a portion of the base fabric uncovered between the elements, each of the plurality of multilayered multifunctional heat-retention elements comprising:
- a low thermal emittance layer directly attached to the base fabric, wherein the low thermal emittance layer restricts heat transmission outward through the externally facing surface of the base fabric;
- and
- a high solar absorptance layer disposed on top of the low thermal emittance layer to form an outermost surface of the multilayered multifunctional heat-retention elements, wherein the high solar absorptance layer comprises a polymeric overlayer that traps solar radiation, and wherein the polymeric overlayer comprises a colorant that increases the solar absorption of the high solar absorptance layer,
- wherein the heat-retention material has a weighted average thermal emittance that is between 0.1 and 0.8.
5 more elements
Dependencies are inferred from the claim text.