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Title:
EVAPORATIVE COOLING TEXTILE
Document Type and Number:
WIPO Patent Application WO/2019/165556
Kind Code:
A1
Abstract:
A textile comprises an interface layer adapted to be applied against a moist surface, the interface layer made of a hydrophobic material having pores allowing moisture to pass through the interface layer. A moisture-retaining layer may be against the interface layer, the moisture-retaining layer made of a hydrophilic material adapted to retain moisture. A heat-generating layer may be against the moisture-retaining layer, the heat- generating layer made of a material having a capacity of generating heat when exposed to near infrared or to infrared radiation. The heat-generating layer is in a heat-exchange relation with the moisture-retaining layer such that heat generated by the heat-generating layer evaporates moisture retained by the moisture-retaining layer through the heat- generating layer.

Inventors:
PERLINGER, Eric (85 rue De La Burlington, Sherbrooke, Québec J1L 1G9, J1L 1G9, CA)
COUTURE, Sébastien (903 rue des Saules, Saint-Nicolas, Québec G7A 3Y7, G7A 3Y7, CA)
QUINTAL, Dominique (85 rue De La Burlington, Sherbrooke, Québec J1L 1G9, J1L 1G9, CA)
Application Number:
CA2019/050245
Publication Date:
September 06, 2019
Filing Date:
March 01, 2019
Export Citation:
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Assignee:
FILSPEC INC. (85 rue De La Burlington, Sherbrooke, Québec J1L 1G9, J1L 1G9, CA)
International Classes:
B32B7/02; D03D11/00; D04B21/00; D06M17/00; C09K5/00
Attorney, Agent or Firm:
NORTON ROSE FULBRIGHT CANADA LLP S.E.N.C.R.L., S.R.L. (Suite 2500, 1 Place Ville-MarieMontréal, Québec H3B 1R1, H3B 1R1, CA)
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Claims:
CLAIMS:

1. A textile comprising at least:

an interface layer adapted to be applied against a moist surface, the interface layer made of a material that generally repels moisture, a configuration of the interface layer allowing moisture to pass through the interface layer,

a moisture-retaining layer against the interface layer, the moisture-retaining layer made of a material having a capacity of retaining moisture, and

a heat-generating layer against the moisture-retaining layer, the heat generating layer made of a material having a capacity of generating heat when exposed to near infrared or to infrared radiation,

wherein the heat-generating layer is in a heat-exchange relation with the moisture-retaining layer such that heat generated by the heat-generating layer evaporates moisture retained by the moisture-retaining layer through the heat-generating layer.

2. The textile according to claim 1 , wherein the heat-generating layer defines an exposed surface of the textile.

3. The textile according to any one of claims 1 and 2, wherein the interface layer defines moisture passages between a weave configuration or a knit configuration of a yarn thereof.

4. The textile according to any one of claims 1 to 3, wherein the heat-generating layer defines moisture passages between a weave configuration or a knit configuration of a yarn thereof.

5. The textile according to any one of claims 1 to 4, wherein the interface layer includes yarns and/or filaments with polypropylene.

6. The textile according to claim 5, wherein the yarns and/or filaments of the interface layer are a blend combination of the polypropylene with one or more of 50% ZnO- doped polyester, polyester, nylon, acrylic.

7. The textile according to any one of claims 5 and 6, wherein a linear density of the yarns or filaments of the interface layer is between 70 deniers and 700 deniers.

8. The textile according to any one of claims 1 to 7, wherein the moisture- retaining layer includes yarns and/or filaments of viscose, lyocell and/or cotton.

9. The textile according to any one of claims 1 to 8, wherein the material of the moisture-retaining layer has a moisture regain superior to 8%.

10. The textile according to any one of claims 1 to 9, wherein the heat-generating layer includes yarns and/or filaments with ceramic-doped fibers.

11. The textile according to claim 10, wherein the ceramic-doped fibers constitute between 15% and 50% by weight of the heat-generating layer.

12. The textile according to claim 11 , wherein a remainder of the heat-generating layer includes fibers of polyester, wool, acrylic, meta-aramid and/or para-aramid.

13. The textile according to any one of claims 1 and 12, further comprising stitching, laminating and/or bonding between the interface layer and the moisture-retaining layer.

14. The textile according to any one of claims 1 and 13, further comprising stitching, laminating and/or bonding between the moisture-retaining layer and the heat- exchange layer.

15. A textile comprising at least:

an interface layer adapted to be applied against a moist surface, the interface layer made of a hydrophobic material having pores allowing moisture to pass through the interface layer,

a moisture-retaining layer against the interface layer, the moisture-retaining layer made of a hydrophilic material adapted to retain moisture, and

a heat-generating layer against the moisture-retaining layer, the heat generating layer made of a material having a capacity of generating heat when exposed to near infrared or to infrared radiation,

wherein the heat-generating layer is in a heat-exchange relation with the moisture-retaining layer such that heat generated by the heat-generating layer evaporates moisture retained by the moisture-retaining layer through the heat-generating layer.

16. The textile according to claim 15, wherein the heat-generating layer defines an exposed surface of the textile.

17. The textile according to any one of claims 15 and 16, wherein the interface layer defines moisture passages between a weave configuration or a knit configuration of a yarn thereof.

18. The textile according to any one of claims 15 to 17, wherein the heat generating layer defines moisture passages between a weave configuration or a knit configuration of a yarn thereof.

19. The textile according to any one of claims 15 to 18, wherein the interface layer includes yarns and/or filaments with polypropylene.

20. The textile according to claim 19, wherein the yarns and/or filaments of the interface layer are a blend combination of the polypropylene with one or more of 50% ZnO- doped polyester, polyester, nylon, acrylic.

21. The textile according to any one of claims 19 and 20, wherein a linear density of the yarns or filaments of the interface layer is between 70 deniers and 700 deniers.

22. The textile according to any one of claims 15 to 21 , wherein the moisture- retaining layer includes yarns and/or filaments of viscose, lyocell and/or cotton.

23. The textile according to any one of claims 15 to 22, wherein the material of the moisture-retaining layer has a moisture regain superior to 8%.

24. The textile according to any one of claims 15 to 23, wherein the heat generating layer includes yarns and/or filaments with ceramic-doped fibers.

25. The textile according to claim 24, wherein the ceramic-doped fibers constitute between 15% and 50% by weight of the heat-generating layer.

26. The textile according to claim 25, wherein a remainder of the heat-generating layer includes fibers of polyester, wool, acrylic, meta-aramid and/or para-aramid.

27. The textile according to any one of claims 15 and 26, further comprising stitching, laminating and/or bonding between the interface layer and the moisture-retaining layer.

28. The textile according to any one of claims 15 and 27, further comprising stitching, laminating and/or bonding between the moisture-retaining layer and the heat- exchange layer.

29. A method for removing moisture from a textile worn by a user comprising:

allowing moisture from the user wearing the textile to pass through an interface layer facing a body part of the user, the interface layer repelling the moisture;

wetting a moisture-retaining layer with the moisture, the moisture-retaining layer separated from the body part by the interface layer;

generating heat by exposure of a heat-generating layer to near infrared or to infrared radiation; and

conducting the heat from the heat-generating layer to the moisture-retaining layer thereby causing an evaporation of at least some of the moisture of the moisture- retaining layer through the heat-generating layer.

30. The method according to claim 29, wherein causing the evaporation of at least some of the moisture includes preventing the moisture-retaining layer from reaching a humidity saturation level.

31. The method according to claim 29, wherein generating heat by exposure of a heat-generating layer to near infrared or to infrared radiation includes generating heat by exposure to sunlight.

Description:
EVAPORATIVE COOLING TEXTILE

CROSS-REFERENCE TO RELATED APPLICATION

[0001] The present application claims the priority of United States Patent Application

No. 62/637,116, filed on March 1 , 2018 and incorporated herein by reference.

FIELD OF THE APPLICATION

[0002] The present application relates to textiles having cooling properties, and to a construction of such a textile.

BACKGROUND OF THE ART

[0003] Evaporative cooling is a natural phenomenon relying on evaporation to provide cooling. In contrast to refrigeration systems, the use of evaporative cooling is cost effective as less energy and resources - if any - are required than in refrigeration systems. In a known configuration, a liquid such as water wets a surface, and evaporates as it absorbs heat from the surface or its environment. If water is not naturally present at the surface, a water flow may be induced to ensure the surface remains wet when cooling is required. Also, air may be convected onto the wetted surface to assist in causing evaporation.

[0004] In parallel, textiles (a.k.a., fabrics) have evolved drastically for uses in various applications, in which the technical features of the textile perform different functionalities. For instance, expanded polytetra-fluoroethylene (ePTFE) may be used to form a textile that is waterproof or water repellent, yet breathable. Oftentimes, the textiles gain their characteristics from the yarns, fibers and/or layers that constitute them. The non-rigid nature of textiles makes them wearable or usable to conform to different shapes. Hence, if new functionalities are added to textiles by their construction, such textiles may be used in a variety of applications.

SUMMARY OF THE APPLICATION

[0005] It is therefore an aim of the present disclosure to provide a textile with evaporative cooling capacity.

[0006] Therefore, in accordance with an aspect the present application, there is provided a textile comprising at least: an interface layer adapted to be applied against a moist surface, the interface layer made of a material that generally repels moisture, a configuration of the interface layer allowing moisture to pass through the interface layer, a moisture-retaining layer against the interface layer, the moisture-retaining layer made of a material having a capacity of retaining moisture, and a heat-generating layer against the moisture-retaining layer, the heat-generating layer made of a material having a capacity of generating heat when exposed to near infrared or to infrared radiation, wherein the heat generating layer is in a heat-exchange relation with the moisture-retaining layer such that heat generated by the heat-generating layer evaporates moisture retained by the moisture- retaining layer through the heat-generating layer.

[0007] Further in accordance with the aspect of the present disclosure, for example, the heat-generating layer defines an exposed surface of the textile.

[0008] Still further in accordance with the aspect of the present disclosure, for example, the interface layer defines moisture passages between a weave configuration or a knit configuration of a yarn thereof.

[0009] Still further in accordance with the aspect of the present disclosure, for example, the heat-generating layer defines moisture passages between a weave configuration or a knit configuration of a yarn thereof.

[0010] Still further in accordance with the aspect of the present disclosure, for example, the interface layer includes yarns and/or filaments with polypropylene.

[0011] Still further in accordance with the aspect of the present disclosure, for example, the yarns and/or filaments of the interface layer are a blend combination of the polypropylene with one or more of 50% ZnO-doped polyester, polyester, nylon, acrylic.

[0012] Still further in accordance with the aspect of the present disclosure, for example, a linear density of the yarns or filaments of the interface layer is between 70 deniers and 700 deniers.

[0013] Still further in accordance with the aspect of the present disclosure, for example, the moisture-retaining layer includes yarns and/or filaments of viscose, lyocell and/or cotton. [0014] Still further in accordance with the aspect of the present disclosure, for example, the material of the moisture-retaining layer has a moisture regain superior to 8%.

[0015] Still further in accordance with the aspect of the present disclosure, for example, the heat-generating layer includes yarns and/or filaments with ceramic-doped fibers.

[0016] Still further in accordance with the aspect of the present disclosure, for example, the ceramic-doped fibers constitute between 15% and 50% by weight of the heat generating layer.

[0017] Still further in accordance with the aspect of the present disclosure, for example, a remainder of the heat-generating layer includes fibers of polyester, wool, acrylic, meta-aramid and/or para-aramid.

[0018] Still further in accordance with the aspect of the present disclosure, for example, stitching, laminating and/or bonding may be present between the interface layer and the moisture-retaining layer.

[0019] Still further in accordance with the aspect of the present disclosure, stitching, laminating and/or bonding may be present between the moisture-retaining layer and the heat-exchange layer.

[0020] In accordance with another aspect of the present disclosure, for example, there is provided a textile comprising at least: an interface layer adapted to be applied against a moist surface, the interface layer made of a hydrophobic material having pores allowing moisture to pass through the interface layer, a moisture-retaining layer against the interface layer, the moisture-retaining layer made of a hydrophilic material adapted to retain moisture, and a heat-generating layer against the moisture-retaining layer, the heat generating layer made of a material having a capacity of generating heat when exposed to near infrared or to infrared radiation, wherein the heat-generating layer is in a heat- exchange relation with the moisture-retaining layer such that heat generated by the heat generating layer evaporates moisture retained by the moisture-retaining layer through the heat-generating layer.

[0021] Further in accordance with the aspect of the present disclosure, for example, the heat-generating layer defines an exposed surface of the textile. [0022] Still further in accordance with the aspect of the present disclosure, for example, the interface layer defines moisture passages between a weave configuration or a knit configuration of a yarn thereof.

[0023] Still further in accordance with the aspect of the present disclosure, for example, the heat-generating layer defines moisture passages between a weave configuration or a knit configuration of a yarn thereof.

[0024] Still further in accordance with the aspect of the present disclosure, for example, the interface layer includes yarns and/or filaments with polypropylene.

[0025] Still further in accordance with the aspect of the present disclosure, for example, the yarns and/or filaments of the interface layer are a blend combination of the polypropylene with one or more of 50% ZnO-doped polyester, polyester, nylon, acrylic.

[0026] Still further in accordance with the aspect of the present disclosure, for example, a linear density of the yarns or filaments of the interface layer is between 70 deniers and 700 deniers.

[0027] Still further in accordance with the aspect of the present disclosure, for example, the moisture-retaining layer includes yarns and/or filaments of viscose, lyocell and/or cotton.

[0028] Still further in accordance with the aspect of the present disclosure, for example, the material of the moisture-retaining layer has a moisture regain superior to 8%.

[0029] Still further in accordance with the aspect of the present disclosure, for example, the heat-generating layer includes yarns and/or filaments with ceramic-doped fibers.

[0030] Still further in accordance with the aspect of the present disclosure, for example, the ceramic-doped fibers constitute between 15% and 50% by weight of the heat generating layer.

[0031] Still further in accordance with the aspect of the present disclosure, for example, a remainder of the heat-generating layer includes fibers of polyester, wool, acrylic, meta-aramid and/or para-aramid. [0032] Still further in accordance with the aspect of the present disclosure, for example, stitching, laminating and/or bonding may be present between the interface layer and the moisture-retaining layer.

[0033] Still further in accordance with the aspect of the present disclosure, stitching, laminating and/or bonding may be present between the moisture-retaining layer and the heat-exchange layer.

[0034] In accordance with yet another aspect of the present disclosure, for example, there is provided a method for removing moisture from a textile worn by a user comprising: allowing moisture from the user wearing the textile to pass through an interface layer facing a body part of the user, the interface layer repelling the moisture; wetting a moisture- retaining layer with the moisture, the moisture-retaining layer separated from the body part by the interface layer; generating heat by exposure of a heat-generating layer to near infrared or to infrared radiation; and conducting the heat from the heat-generating layer to the moisture-retaining layer thereby causing an evaporation of at least some of the moisture of the moisture-retaining layer through the heat-generating layer.

[0035] Further in accordance with the other aspect, for example, causing the evaporation of at least some of the moisture includes preventing the moisture-retaining layer from reaching a humidity saturation level.

[0036] Still further in accordance with the other aspect, for example, generating heat by exposure of a heat-generating layer to near infrared or to infrared radiation includes generating heat by exposure to sunlight.

DESCRIPTION OF THE DRAWINGS

[0037] Fig. 1 is a schematic sectional view of an evaporative cooling textile in accordance with the present disclosure.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0038] Referring to Fig. 1 , an evaporative cooling textile in accordance with the present disclosure is generally shown at 10. In the illustrated embodiment, the evaporative cooling textile 10 has a flexible (i.e. , non-rigid) panel body. A panel body may be regarded as having substantial length and width relative to a thickness. The evaporation cooling textile 10 is shown as being constituted of three different layers, though the textile 10 may have more than the three different layers described herein. In an embodiment, the textile 10 has at least:

• An interface layer 20 repelling moisture and facing the user’s body;

• A moisture-retaining layer 30 for absorbing and retaining moisture; and

• A heat-generating layer 40 for retaining ambient heat and/or absorbing ambient heat and/or generating heat.

[0039] The interface layer 20 may be against the moisture-retaining layer 30. The moisture-retaining layer 30 may be against the heat-generating layer 40. The expression “be against” may indicate that main surfaces of the layers 20 and 30, and of the layers 30 and 40 are coplanar. While the evaporative cooling textile 10 may not be flat, especially when worn or used, the expression coplanar may be used to indicate that non-flat planes of the surfaces of the layers 20 and 30, and 30 and 40, are in contact regardless of how the evaporative cooling textile 10 is shaped. The interface layer 20 is selected so as be in contact with a user’s skin A, hair and/or other external soft tissue. The interface layer 20 is made of a material that is hydrophobic, allowing moisture to pass through it, yet without absorbing the moisture. In other words, the material repels moisture. In an embodiment, the interface layer 20 is a woven fabric, with yarns having such moisture repellent properties. The weaving is well suited to define moisture passages (i.e., pores). The moisture passages may be for instance in the interstices between the yarns and/or threads constituting the interface layer 20. Moisture diffusion may occur through the fibers and the interstices between the mass of fibers constituting the yarns.

[0040] An exemplary material for the yarn of the interface layer 20 is polypropylene.

However, other materials may be used. The yarn may be composed of 50% ZnO-doped polyester and 50% polypropylene or any blend combination of low moisture absorption fibers like polyester, nylon or acrylic = the 50%/50% given as an example only. The hydrophobic properties of the yarn of the interface layer 20 may also be achieved through the use of hydrophobic coatings. It could be spun yarn, filament, a combination of both woven or knitted in the fabric form. The linear density of the yarn or filament used for this interface layer 20 may be between 70 deniers up to 700 deniers. As an alternative to a woven fabric, the interface layer 20 may be a knitted fabric, for example. The interface layer 20 therefore assists in reducing the amount of moisture on the skin, by allowing moisture to evacuate. In essence, the interface layer 20 plays the role of a relatively dry top sheet, a.k.a., a dry feel layer, that remains relatively dry through its moisture repellent properties, combined to the absorbing properties of the moisture-retaining layer 30. The interface layer 20 may also be qualified as being a non-wetting layer.

[0041] A moisture-retaining layer 30 is laid onto the interface layer 20 by any appropriate arrangement, such as stitching, laminating, bonding, etc, with combinations, thereof. The interconnection between the interface layer 20 and the moisture-retaining layer 30 must not or does not hamper the flow of moisture from the skin A to the moisture- retaining layer 30, via the passages in the interface layer 20. The moisture-retaining layer 30 is made of a material that is for example hydrophilic that absorbs the moisture. The moisture-retaining layer 30 is a wetting layer, in that liquid present has a tendency to remain in contact with the yarns/threads of the moisture-retaining layer 30. In an embodiment, the interface moisture-retaining layer 30 is a woven fabric. Several types of yarn may be used for this task, like viscose, lyocell, cotton or any fibers that has a moisture regain superior to 8%. It can be a knitted or woven fabric, or a non-woven component. The moisture-retaining layer 30 therefore acts as a reservoir for the moisture generated by or circulating on the skin A. The moisture-retaining layer 30 may also assist in wicking or pumping the moisture away from the skin A, through the passages of the interface layer 20. Hence, the combination of the interface layer 20 and the moisture-retaining layer 30 performs some wicking action, with the moisture-retaining layer 30 drawing humidity, for instance by capillary action, with the interface layer 20 serving as a moisture conveyor isolating the skin from the wetted moisture-retaining layer 30.

[0042] A heat-generating layer 40 forms the outer exposed surface of the textile 10. Accordingly, the heat-generating layer 40 may be exposed to the elements, including sunlight, if the textile 10 is part of a garment that is worn outside, without being covered by a protective shell. The heat-generating layer 40 is laid onto the moisture-retaining layer 30 by any appropriate arrangement, such as stitching, laminating, bonding, etc, and any combination thereof provided the interconnection between the moisture-retaining layer 30 and the heat-generating layer 40 does not substantially affect heat exchange between the moisture-retaining layer 30 and the heat-generating layer 40. The heat-generating layer 40 is made of a material that has the capacity of generating heat from infrared or near infrared exposure. In an embodiment, the heat-generating layer 40 is a woven fabric. One type of yarn and/or filament that may be used for its heat generating capacity is a ceramic-doped yarn. A fabric used as the heat-generating layer 40 may contain between 15% and 50% by weight of the ceramic-doped fiber, though the content of ceramic-doped fiber may be higher. A companion fiber or fibers could be any other fiber like a conventional polyester fiber, wool, acrylic, or a high-performance manmade fiber like meta-aramid or para-aramid. In an embodiment, the blending for the yarn used in this layer is an intimate blend to ensure optimal contact between the heat-generating fiber and the other fiber or fibers in the yarn. The layer 40 may be in direct contact with the layer 30 so that the energy is transferred by conduction. The heat-generating layer 40 therefore generates heat to induce the evaporation of moisture retained by the moisture-retaining layer 30. The heat-generating layer 40 may also allow moisture to escape outwardly, i.e. , away from the user’s skin A, also through passages resulting from the weaving or knitting arrangement. The passages may be referred to as pores. As the heat-generating layer 40 generates heat, it will cause a gradual evaporation of the moisture retained in the moisture-retaining layer 30. The evaporation will pass through the passages in the heat-generating layer 40. In doing so, the moisture-retaining layer 30 will lose humidity and more away its humidity saturation point. Moisture diffusion may occur through the fibers and the interstices between the mass of fibers constituting the yarns.

[0043] It is possible to add other functionalities to the evaporative cooling textile 10. For instance, it is contemplated to used stretch yarns (like corespun spandex) or cut-resistant yarn (like glass core or metallic core) in the woven or knitted fabric that compose the layers 30 and/or 40. Other layers beyond the three different layers 20, 30 and 40 described above include fabric construction that would create during weaving or knitting two or even 3 more layers in one single manufacturing operation. Modern knitting machines for example may allow the production of two faces material. It is possible to design a single fabric that may incorporate layer 20 and layer 30 or layer 30 and 40 in the same knitted fabric. The same can be achieve with a weaving machine. A linear density of the yarns or filaments of the layers 30 and 40 may be between 70 deniers and 700 deniers.

[0044] Now that the various layers and the construction of the evaporative cooling textile 10 have been described, a method of operation is set forth.

[0045] The evaporative cooling of the textile 10 works well when the interface layer

20 of the textile 10 is applied against a humid surface requiring cooling, such as human skin generating sweat. Moreover, the evaporation cooling of the textile 10 is enhanced by exposure to infrared and/or infrared radiation, such as exposure to sunlight.

[0046] As moisture is generated, the moisture is drawn to the moisture-retaining layer 30 through the interface layer 20. As the interface layer 20 may be hydrophobic while the moisture-retaining layer 30 pumps the moisture, the interface layer 20 may remain generally dry. In parallel, the heat-generating layer 40 is activated by its exposure to infrared radiations, including sunlight, in such a way that it generates heat. The heat generating layer 40 is in heat-exchange contact with the moisture-retaining layer 30, for example by conduction, such that the moisture in the moisture-retaining layer 30 absorbs the heat from the heat-generating layer 40. The heat absorption causes evaporation of the moisture from the moisture-retaining layer 30 to ambient, through the heat-generating layer 40. Accordingly, by the evaporation of the moisture, the moisture-retaining layer 30 is below saturation level at least in some instances of the evaporation cooling cycle of the textile 10. This enables the moisture-retaining layer 30 to continuously pump the moisture away from surface to be cooled, such as the skin A.

[0047] The textile 10 is well suited for being used as part of athletic garment, worn directly over the skin in warm weather. For example, the textile 10 may be part of a jersey, pants, legging, head wear, etc. For example, localized regions of a jersey that are exposed to sunlight may be made from the textile 10. While the textile 10 is well suited for such garment used, it is contemplated to use the textile 10 in other application as well, including refrigeration and hardware.

[0048] In an embodiment, the textile 10 or a garment with the textile 10 may have at the minimum the interface layer 20 adapted to be applied against a moist surface, the interface layer 20 made of a material that generally repels moisture, a configuration of the interface layer 20 allowing moisture to pass through the interface layer 20. A moisture- retaining layer 30 may be against the interface layer 20, the moisture-retaining layer 30 made of a material having a capacity of retaining moisture. A heat-generating layer 40 may be against the moisture-retaining layer 30, the heat-generating layer 40 made of a material having a capacity of generating heat when exposed to near infrared or to infrared radiation. The heat-generating layer 40 is in a heat-exchange relation with the moisture-retaining layer 30 such that heat generated by the heat-generating layer 40 evaporates moisture retained by the moisture-retaining layer 30 through the heat-generating layer 40.

[0049] In an embodiment, the textile 10 or a garment with the textile 10 may have at the minimum an interface layer 20 adapted to be applied against a moist surface, the interface layer 20 made of a hydrophobic material having pores allowing moisture to pass through the interface layer 20. A moisture-retaining layer 30 may be against the interface layer 20, the moisture-retaining layer 30 made of a hydrophilic material adapted to retain moisture. A heat-generating layer 40 may be against the moisture-retaining layer 30, the heat-generating layer 40 made of a material having a capacity of generating heat when exposed to near infrared or to infrared radiation. The heat-generating layer 40 is in a heat- exchange relation with the moisture-retaining layer 30 such that heat generated by the heat generating layer 40 evaporates moisture retained by the moisture-retaining layer 30 through the heat-generating layer 40.

[0050] The textile 10 or like textile, or garment with such textiles may operate a method for removing moisture from a user comprising: allowing moisture from the user wearing the textile to pass through an interface layer facing a body part of the user, the interface layer repelling the moisture; wetting a moisture-retaining layer with the moisture, the moisture-retaining layer separated from the body part by the interface layer; generating heat by exposure of a heat-generating layer to near infrared or to infrared radiation; and conducting the heat from the heat-generating layer to the moisture-retaining layer thereby causing an evaporation of at least some of the moisture of the moisture-retaining layer through the heat-generating layer. Causing the evaporation of at least some of the moisture may include preventing the moisture-retaining layer from reaching a humidity saturation level. Generating heat by exposure of a heat-generating layer to near infrared or to infrared radiation may include generating heat by exposure to sunlight.