Cellulosic fibers having enhanced reversible thermal properties and methods of forming thereof
AssigneeOutlast Technologies, Inc.
InventorsMark H. Hartmann, James B. Worley, Matthew North
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Abstract
A viscose fiber comprises a fiber body including a regenerated cellulosic material and a plurality of microcapsules dispersed in the regenerated cellulosic material. The regenerated cellulosic material is derived from an organic plant material and the plurality of microcapsules containing a phase change material has a transition temperature in the range of 0° C. to 100° C., the phase change material providing thermal regulation based on at least one of absorption and release of latent heat at the transition temperature.
Claims17
A lyocell-type cellulosic fiber having enhanced reversible thermal properties, comprising:
- a fiber body formed of one or more elongated members, at least one elongated member including a cellulosic material and a temperature regulating material including a phase change material contained by a containment structure, the temperature regulating material being dispersed substantially uniformly within the cellulosic material and the phase change material having a transition temperature in the range of 22° C. to 40° C.
A lyocell-type cellulosic fiber having enhanced reversible thermal properties, comprising:
- a plurality of island members, at least one Island member of the plurality of Island members including
- a phase change material contained In a containment structure, the phase change material having a transition temperature in the range of 16° C. to 45° C.;
- and
- a sea member surrounding each of the plurality of Island members and forming an exterior of the cellulosic fiber, the sea member including a sea cellulosic material.
A cellulosic fiber comprising:
- a fiber body including a cellulosic material and a plurality of microcapsules dispersed in the cellulosic material, the plurality of microcapsules containing a phase change material having a latent heat of at least 40 J/g and a transition temperature in the range of 0° C. to 100° C., the phase change material providing thermal regulation based on at least one of absorption and release of the latent heat at the transition temperature, wherein the cellulosic fiber has a cross-section that is generally X-shaped, generally Y-shaped, generally T-shaped or generally H-shaped, wherein the cellulosic material includes one of cellulose and cellulose acetate.
Dependencies are inferred from the claim text.