Dynamic ventilation structure for clothing

A moisture-responsive composite laminate in clothing dynamically adjusts ventilation based on sweat, enhancing comfort by adapting to activity levels without human intervention.

JP7863192B2Active Publication Date: 2026-05-20NIKE INNOVATE CV
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
NIKE INNOVATE CV
Filing Date
2023-01-06
Publication Date
2026-05-20

AI Technical Summary

Technical Problem

Conventional clothing ventilation structures require human operation or are statically open, lacking dynamic response to environmental conditions.

Method used

A composite laminate structure with a moisture-responsive film layer and slits that expand to form ventilation passages upon exposure to sweat, returning to a closed state when moisture is removed, integrated with a support layer for structural support and insulation.

Benefits of technology

Provides adaptive ventilation that enhances cooling during exercise and warmth retention during rest without manual operation, improving comfort and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

An aspect of the invention is a composite laminate having a substrate layer (e.g., knit, woven, nonwoven, etc.) and a film layer secured or bonded to the substrate layer. The film layer, with a plurality of slits extending through both the substrate layer and the film layer, is formed of a material that changes dimensions when exposed to an external stimulus, such as moisture. When exposed to moisture, the film layer swells such that flaps formed by the plurality of slits extend from the film layer in the z-direction. The openings in the flaps form a through passage through the thickness of the composite structure.
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Description

Technical Field

[0001] Aspects of this specification relate to a ventilation structure for clothing that dynamically transitions from a closed state to an open state in response to an external stimulus.

Background Art

[0002] Conventional ventilation structures for clothing generally exist in mechanical structures that require human operation, such as those that open and close by using zippers or fasteners, passively open and close according to the air entering and leaving the ventilation structure, or static structures that are always open.

Summary of the Invention

[0003] The following items represent exemplary aspects of the concepts contemplated in this specification. Any of the following items can be combined in multiple dependent forms and can depend on one or more other items. Furthermore, any combination of dependent items (items that explicitly depend on the previous item) can be combined while being within the scope of the aspects contemplated in this specification. The following items are merely examples and are not limiting.

[0004] Item 1. A trim piece for clothing, comprising a composite structure including a base material layer and a film layer that changes dimensions when exposed to moisture, the film layer being fixed to a first surface of the base material layer, the composite structure including a plurality of slits extending across the thickness of the composite structure.

[0005] Item 2. The trim piece according to claim 1, further comprising a support layer fixed to the composite structure, the support layer being in a face-sharing relationship with the film layer.

[0006] Item 3. The trim piece according to claims 1 and 2, wherein the base material layer includes one of a knit textile or a woven textile.

[0007] Item 4. The trim piece according to any one of claims 1 to 3, wherein the film layer is a thermoplastic material.

[0008] Item 5. The trim piece according to claim 4, wherein the thermoplastic material is a thermoplastic polyester elastomer (TPEE).

[0009] Item 6. The trim piece according to any one of items 1 to 5, wherein the entire film layer is fixed to the first surface of the substrate layer.

[0010] Item 7. The trim piece according to any one of items 1 to 6, wherein the film layer is bonded to the substrate layer.

[0011] Item 8. The trim piece according to any one of items 1 to 7, wherein the support layer is fixed to the composite structure along one or more peripheries of the support layer.

[0012] Item 9. The support layer comprises one of a mesh material or a spacer mesh material, as described in any one of items 1 to 8.

[0013] Item 10. The support layer is a trim piece according to any one of items 1 to 9, comprising fleece material.

[0014] Item 11. The trim piece according to item 10, wherein the fleece material includes one or more openings, the one or more openings being axially aligned with at least a portion of the plurality of slits.

[0015] Item 12. A garment item comprising a trim piece fixed to at least a first portion of the garment item, wherein the trim piece comprises a composite structure comprising a base layer and a film layer that changes dimensions when exposed to moisture, the film layer being fixed to a first surface of the base layer, and the composite structure comprising a plurality of slits extending over the thickness of the composite structure.

[0016] Item 13. The garment item according to item 12, further comprising a support layer fixed to the composite structure, wherein the first surface of the support layer is in a surface-sharing relationship with the film layer.

[0017] Item 14. The garment item according to items 12 and 13, wherein the garment item is a bra, and the trim piece is fixed to the lower front margin of the bra such that the trim piece forms the underband of the bra.

[0018] Item 15. The clothing item described in items 12 and 13, wherein the clothing item is a jacket.

[0019] Item 16. The garment item according to Item 15, wherein the trim piece is fixed spaced apart between a first baffle containing thermal insulation and a second baffle containing thermal insulation.

[0020] Item 17. The garment item according to any one of items 12 to 16, wherein the second surface opposite to the support layer is configured to share a surface with the wearer's body surface when the garment item is worn.

[0021] Item 18. The garment according to any one of items 12 to 17, wherein when the film layer is exposed to moisture, one or more flaps formed by the plurality of slits extend from the support layer in the z direction.

[0022] Item 19. The garment item according to any one of items 12 to 18, wherein the base material layer comprises one of knitted textiles or woven textiles.

[0023] Item 20. The clothing item according to any one of items 12 to 19, wherein the film layer is made of a thermoplastic material.

[0024] Item 21. The garment item according to Item 20, wherein the thermoplastic material is a thermoplastic polyester elastomer (TPEE).

[0025] Item 22. The clothing item according to any one of items 12 to 21, wherein the film layer is bonded to the base material layer.

[0026] Item 23. A method for forming a trim piece for clothing, comprising the step of forming a plurality of slits through the thickness of a composite structure including a substrate layer and a film layer whose dimensions change when exposed to moisture, the film layer being fixed to the first surface of the substrate layer, and the step of fixing the support layer to the composite structure such that the first surface of the support layer is in a face-sharing relationship with the film layer.

[0027] Item 24. The method for forming a trim piece according to item 23, wherein the support layer includes one of a mesh material, a spacer mesh material, or a fleece material.

[0028] Item 25. A composite laminate, comprising a base material layer, a film layer bonded to the base material layer and whose dimensions change when exposed to moisture, and slits that completely penetrate the film layer, the slits forming at least a part of a through-passage that penetrates at least the film layer, and one side of the composite laminate being in fluid communication with the other side of the composite laminate through the through-passage.

[0029] Item 26. The composite laminate according to item 25, wherein when the film layer is exposed to moisture, a portion of the film layer near the slit migrates from a first position to a second position, and the through-passage becomes larger at the second position than when the portion is at the first position.

[0030] Item 27. The composite laminate according to item 26, wherein at the second position, the through-passage increases the air flow between the first side and the second side of the composite laminate as compared to when the portion is at the first position.

[0031] Item 28. The composite laminate according to any one of items 26 and 27, wherein when moisture is removed from the film layer, the size of the through-passage decreases.

[0032] Item 29. The composite laminate according to any one of items 26 to 28, wherein when the film layer is exposed to moisture, one or more flaps formed by the plurality of slits extend away from the support layer.

[0033] Item 30. The composite laminate according to any one of items 25 to 29, wherein the slit has a portion of the edge of the composite laminate, and the film layer is at least partially bonded to the substrate layer along the edge.

[0034] Item 31. The composite laminate according to any one of items 25 to 30, wherein the film layer includes a longitudinal direction and a transverse direction, and the slits are arranged on the film so as not to be parallel to the transverse direction of the film.

[0035] Item 32. The composite laminate according to item 31, wherein the slit is a first slit, and the composite laminate further includes a second slit that penetrates at least the film and intersects the first slit at an angle.

[0036] Item 33. The composite laminate according to item 32, wherein the first slit is perpendicular to the transverse direction of the film and the second slit is parallel to the transverse direction of the film.

[0037] Item 34. The composite laminate according to item 33, wherein the slits form a plurality of portions that move substantially the same amount when the film layer is exposed to moisture.

[0038] Item 35. The composite laminate according to any one of items 32 to 34, wherein when exposed to moisture, the edge of the composite laminate associated with the first slit moves greater in the z direction than the edge of the composite laminate associated with the second slit.

[0039] Item 36. The composite laminate according to any one of items 31 to 35, wherein the base material layer is a textile, including a longitudinal and transverse direction, and the longitudinal direction of the film layer is parallel to the longitudinal direction of the textile.

[0040] Item 37. The composite laminate according to any one of items 31 to 35, wherein the base material layer is a textile, including a longitudinal and transverse direction, and the longitudinal direction of the film layer is parallel to the transverse direction of the textile.

[0041] Item 38. The composite laminate according to any one of items 31 to 35, wherein the base material layer is a textile, including a longitudinal and transverse direction, and the longitudinal direction of the film layer is angled with respect to the longitudinal direction of the textile.

[0042] Item 39. A composite laminate according to any one of items 25 to 38, wherein the textile includes a knitted material.

[0043] Item 40. A composite laminate according to any one of items 25 to 38, wherein the textile includes a nonwoven material.

[0044] Item 41. The composite laminate according to any one of items 25 to 38, wherein the textile includes a woven material.

[0045] Item 42. The composite laminate according to any one of items 32 to 41, wherein the first slit and the second slit have shapes selected from T-shaped, L-shaped, plus sign-shaped, X-shaped, and any combination thereof.

[0046] Item 43. The composite laminate according to any one of items 25 to 42, wherein the slit has a curved shape.

[0047] Item 44. A garment for the upper body, comprising: a base layer including an inner surface and an outer surface; a composite laminate including a film layer fixed to the inner surface of the base layer and whose dimensions change when exposed to moisture; a plurality of slits extending at least over the thickness of the film layer; and an outer layer adjacent to the outer surface of the base layer.

[0048] Item 45. The upper body garment according to item 44, wherein the upper body garment has a back portion configured to cover the wearer's back when the upper body garment is worn, and the composite laminate is positioned in the upper region of the back portion.

[0049] Item 46. The upper body garment according to any one of items 44 to 45, further comprising an inner lining adjacent to the film layer and configured to be positioned between the film layer and the wearer when the upper body garment is worn.

[0050] Item 47. The outer layer is treated with a durable water-repellent (DWR) surface treatment on its outer surface, the upper body garment as described in any one of items 44 to 46.

[0051] Item 48. The upper body garment according to any one of items 44 to 47, wherein the outer layer includes a bottom edge, and the bottom edge includes at least segments located below the plurality of slits.

[0052] Item 49. Clothing comprising a base layer and a film layer whose dimensions change when exposed to moisture, wherein the film layer is a composite structure fixed to a first surface of the base layer, and the composite structure includes a plurality of slits extending over the thickness of the composite structure, and a support layer fixed to the composite structure, wherein the support layer is in a surface-sharing relationship with the film layer.

[0053] Item 50. The garment according to item 49, wherein the film layer is made of a thermoplastic material.

[0054] Item 51. The garment according to item 50, wherein the thermoplastic material is thermoplastic polyester elastomer (TPEE).

[0055] Item 52. The garment is an upper body garment, and the composite structure is located on the upper back, as described in any one of items 49 to 51.

[0056] Item 53. The garment according to any one of items 49 to 52, wherein the support layer comprises one of a mesh material or a spacer mesh material.

[0057] Item 54. The garment according to any one of items 49 to 53, wherein the support layer includes one or more openings, and at least a portion of the one or more openings is axially aligned with at least a portion of the plurality of slits. [Brief explanation of the drawing]

[0058] Examples of embodiments of this specification are described in detail below with reference to the accompanying drawings. [Figure 1] This shows a perspective view of the first surface of a part of a trim piece having a dynamic ventilation structure, before the trim piece according to an aspect of the present invention is exposed to external stimuli. [Figure 2] This shows a cross-section of the trim piece in Figure 1, cut along the cutting line 2-2 in Figure 1, according to an embodiment of the present invention. [Figure 3] Figure 1 shows a perspective view of the first surface of the trim piece after the trim piece according to an embodiment of the present invention has been exposed to an external stimulus. [Figure 4] Figure 1 shows a perspective view of the opposite side of the second surface of the trim piece according to an aspect of the present invention, as in the first example. [Figure 5] Figure 1 shows a perspective view of a second example of the trim piece opposite the second surface according to an aspect of the present invention. [Figure 6] This shows a cross-section of the trim piece of Figure 5, cut along the cutting line 6-6 in Figure 5, according to an embodiment of the present invention. [Figure 7] Figure 1 shows the trim piece according to an aspect of the present invention applied to a garment item in the form of a bra, before it is exposed to external stimuli. [Figure 8] Figure 7 shows a bra after a trim piece according to an embodiment of the present invention has been exposed to external stimuli. [Figure 9] Figure 1 shows a trim piece according to an embodiment of the present invention, applied to a garment item in the form of upper body clothing, before it is exposed to external stimuli. [Figure 10]This shows a cross-section of a baffle containing a thermal insulation filling material according to an embodiment of the present invention. [Figure 11] Figure 9 shows the upper body garment after the trim piece according to an embodiment of the present invention has been exposed to external stimuli. [Figure 12] Figure 1 shows a perspective cross-sectional view of an example of a ventilation structure incorporating the trim piece and cover piece shown in Figure 1, before the trim piece according to an embodiment of the present invention is exposed to external stimuli. [Figure 13] Figure 12 is a side view of an exemplary ventilation structure according to an embodiment of the present invention. [Figure 14] Figure 12 shows a side view of an exemplary ventilation structure of a trim piece according to an aspect of the present invention after it has been exposed to external stimuli. [Figure 15] This diagram shows an exemplary method for forming a trim piece, such as the trim piece shown in Figure 1, according to an aspect of the present invention. [Figure 16A] This shows an upper body garment including a composite layer panel according to an aspect of the present invention. [Figure 16B] This shows an upper body garment including a composite layer panel according to an aspect of the present invention. [Figure 16C] This shows an upper body garment including a composite layer panel according to an aspect of the present invention. [Figure 17A] The image shows a top view of an example with a different slit shape according to an embodiment of the present invention. [Figure 17B] The image shows a top view of an example with a different slit shape according to an embodiment of the present invention. [Figure 17C] The image shows a top view of an example with a different slit shape according to an embodiment of the present invention. [Figure 17D] The image shows a top view of an example with a different slit shape according to an embodiment of the present invention. [Figure 17E] The image shows a top view of an example with a different slit shape according to an embodiment of the present invention. [Figure 17F] The image shows a top view of an example with a different slit shape according to an embodiment of the present invention. [Figure 17G] The image shows a top view of an example with a different slit shape according to an embodiment of the present invention. [Figure 17H] The image shows a top view of an example with a different slit shape according to an embodiment of the present invention. [Figure 17I] The image shows a top view of an example with a different slit shape according to an embodiment of the present invention. [Figure 17J] The image shows a top view of an example with a different slit shape according to an embodiment of the present invention. [Figure 18A] This is a top view of a group of slits, which have one slit perpendicular to the longitudinal direction of the film layer and one slit parallel to the longitudinal direction of the film layer, before being exposed to a stimulus. [Figure 18B] This is a top view of a group of slits, which are orthogonal to each other and form a 45-degree angle with respect to the longitudinal direction of the film layer, before being exposed to stimulation. [Figure 18C] This is a top view of the slit group in Figure 18A after exposure to stimulation. [Figure 18D] This is a top view of the slit group in Figure 18B after exposure to stimulation. [Figure 19A] This is a top view of a single slit parallel to the longitudinal direction of the film layer before it is exposed to stimulation. [Figure 19B] This is a top view of a single slit perpendicular to the longitudinal direction of the film layer before it is exposed to stimulation. [Figure 19C] Figure 19A shows a top view of the single slit after exposure to stimulation. [Figure 19D] Figure 19B shows a top view of the single slit after exposure to stimulation. [Modes for carrying out the invention]

[0059] The subject matter of the present invention is described in detail herein in order to satisfy legal requirements. However, the description itself is not intended to limit the scope of this disclosure. Rather, the inventors have considered that the claimed or disclosed subject matter may be embodied in other ways in combination with other current or future technologies, including different steps or combinations of steps similar to those described herein. Also, the terms “step” and / or “block” may be used herein to suggest different elements of the method used, but should not be construed as suggesting any particular order between the steps disclosed herein unless the order of the individual steps is explicitly indicated.

[0060] Conventional clothing ventilation structures generally exist as mechanical structures that require human intervention, such as those that open and close using zippers or fasteners, those that open and close passively in response to air entering and exiting the ventilation structure, or static structures that are always open.

[0061] Aspects of this specification provide a ventilation structure that dynamically transitions from a closed state to an open state (e.g., manually or without operation) in response to exposure to an external stimulus, such as moisture in the form of sweat. When the external stimulus is removed, the ventilation structure dynamically returns to the closed state. This allows for the necessary ventilation when the wearer is exercising, for example, and reduces ventilation without any operation of the ventilation structure when the wearer is resting.

[0062] In exemplary embodiments, the ventilation structure is adapted to be applied to or fixed to the garment.

[0063] The trim piece may be in the form of a composite textile (e.g., a textile panel). The trim piece may include a composite structure which may be a laminate having a base layer which may include a knitted material, a nonwoven material, or a woven material, and a film layer fixed or bonded to the base layer. One or more slits penetrate both the base layer and the film layer. The film layer is formed of a material which changes dimensions when exposed to external stimuli such as moisture. In an exemplary embodiment, the film layer expands, and a flap formed by one or more slits extends from the film layer in the Z direction. When the flap opens, a passage is formed that penetrates the thickness of the composite structure. Water vapor and / or heat generated by the wearer dissipates through the passage, and air from the external environment passes through the passage through the composite structure to further aid in cooling the wearer.

[0064] In exemplary embodiments, an optional support layer is fixed to the composite structure, with a first surface of the support layer sharing a surface with the film layer. The support layer can provide structural support to the trim piece. In exemplary embodiments, the support layer may be a mesh material or spacer mesh material that is permeable to air and / or water vapor. In other exemplary embodiments, the support layer may be a fleece material to provide warmth and / or insulation to the trim piece. In this example, since fleece is not as permeable to air and / or water vapor as mesh material or spacer mesh material, the fleece material may include one or more openings aligned axially with at least some of a plurality of slits formed through the composite structure. Thus, when the flaps formed by the slits are opened, air and / or water vapor can move through the openings in the fleece material and through passages in the composite structure.

[0065] In exemplary embodiments, the trim piece may be incorporated into support garments such as bras, including sports bras. For example, the trim piece may form the underband portion of a bra and be configured to extend around the wearer's torso. In this example, the support layer may be made of a lightweight mesh or spacer mesh material. The support layer is positioned adjacent to the wearer's skin surface, the substrate layer faces outward or externally, and the film layer is positioned between the support layer and the substrate layer. When the wearer begins to exercise and sweats, sweat and / or water vapor passes through the mesh or spacer mesh material and comes into contact with the film layer. The film layer expands, and a flap formed by one or more slits extends outward away from the support layer. The resulting passage facilitates the movement of water vapor and / or heat from the wearer's body to the external environment, helping to cool the wearer. When the wearer finishes exercising, the film layer returns to a resting state and the flap closes.

[0066] In exemplary embodiments, the trim piece may be incorporated into a body garment, including a body garment designed to be worn in a variety of weather conditions, including precipitation (e.g., rain, snow), cold, and / or all-weather conditions. In this example, the body garment includes baffles filled with insulating filler to provide warmth to the body garment. The trim piece may be positioned between one or more adjacent baffles. In this example, the support layer is a fleece material that provides further warmth to the body garment, and the fleece material includes multiple slits formed through the composite structure and axially aligned openings. In exemplary embodiments, the base layer may be a tightly woven material to provide windproofness. In exemplary embodiments, a durable water repellent may be applied to the base layer to impart water repellency to the trim piece. As described above, the support layer is positioned adjacent to the wearer's skin surface, the base layer faces outward or outward, and the film layer is positioned between the support layer and the base layer. When the wearer sweats or produces water vapor, the sweat and water vapor pass through the openings in the fleece material and come into contact with the film layer. The film layer expands, and the flap, formed by multiple slits, extends outward away from the supporting layer. The resulting passages facilitate the transfer of water vapor and / or heat from the wearer's body to the external environment, helping to cool the wearer. When the wearer rests and stops producing sweat and / or water vapor, the flap closes, retaining heat and increasing the wearer's warmth.

[0067] In exemplary embodiments, the cover piece is positioned outside the trim piece and may be fitted to partially or completely cover the trim piece with multiple slits. The cover piece can prevent precipitation from the external environment from entering the article incorporating the trim piece through the multiple slits. When the flap of the trim piece is opened, the flap mechanically pushes the cover piece outward, so the cover piece does not obstruct the movement of air or water vapor through the passage and prevents precipitation from the external environment from entering the article through the passage.

[0068] For example, a composite structure (including a film, substrate, and support layer) can be incorporated into one or more panels of a garment, such as the upper back of a jacket. In this example, the jacket may be formed with a multilayer structure and include an outer layer that acts as a cover for the composite panel. The outer layer is designed to include draping properties and act as a shield to prevent precipitation or other environmental elements from entering the jacket through the panel's passages, while fitting loosely enough to allow the composite panel's flaps to open and allow ventilation.

[0069] As used herein, the terms “article” or “garment” include all products intended to be worn by a wearer, such as upper body garments (shirts, jackets, hoodies, pullovers, etc.), lower body garments (pants, shorts, leggings, etc.), footwear such as shoes and socks, hats (hat, etc.), gloves, sleeves (arm sleeves, calf sleeves, etc.). Positional terms used when describing garments, such as front, back, inner surface, outer surface, top, bottom, proximal, distal, inner, and lateral, refer to garments worn as intended by a wearer in an upright position. Thus, if a garment is in the form of upper body garments or lower body garments, the front of the garment is configured to cover, for example, the front region of the wearer's torso, forearm region, or forelimb region, and the back of the garment is configured to cover the wearer's rear region of the torso, hindarm region, or hindlimb region. Similarly, the inner surface of a garment is configured to be positioned adjacent to the wearer's skin surface or base layer, and the outer surface of a garment is configured to face the external environment. The term “innermost surface” means the layer of the article that is positioned closest to the wearer's skin surface relative to the other layers of the article, and the term “outermost surface” means the layer of the article that is positioned furthest from the wearer's skin surface relative to the other layers of the article.

[0070] As used herein, the term “trim piece” means a structure adapted to be applied to a garment when forming the garment. A trim piece may generally be in the form of a strip having a length longer than the strip width. A trim piece may also be in a different shape, such as a panel. Any aspect and all forms, as well as any variations thereof, are intended to be included within the scope of this specification.

[0071] As used herein, the term “Z direction” refers to the direction extending in a positive or negative direction from the surface of the trim piece and / or garment. The terms “X direction” and “Y direction” refer to the direction extending along the surface of the trim piece and / or garment.

[0072] As used herein, the term “dimensional change” means a change or alteration of one or more dimensions, such as in the X direction or axis, the Y direction or axis, and / or the Z direction or axis. For example, an object may undergo a dimensional change by expanding, contracting, folding, bending, curling, lifting, slackening, and / or straightening along its length, width, and / or height.

[0073] As used herein, the term “axially aligned” means that the axes of one feature are parallel to or collinear with the axes of another feature, as the term is understood in the art.

[0074] As used herein, the term “external stimulus” encompasses any number of stimuli, such as temperature, pressure, humidity, electrical energy, magnetic energy, light, and sound. In one exemplary embodiment, the external stimulus is humidity, which can take the form of liquid water, water or water vapor, sweat, etc.

[0075] As used herein, the term “through passage” means an opening formed in a trim piece and / or garment that provides a pathway for fluids (such as vapors, gases, or liquids) to communicate between the external environment and the interior of the garment (the space between the inner surface of the garment and the wearer’s body). The terms “dynamic” or “dynamically” used when describing a transition of a ventilation structure from a closed state to an open state, or vice versa, generally mean a self-generating mechanical action of the ventilation structure that occurs without human intervention or manipulation.

[0076] As used herein, the term “composite material” means a material comprising two or more constituent materials. These constituent materials may have different properties, and when combined, they create a material with properties distinct from those of the individual materials.

[0077] As used herein, the term “laminated structure” means a structure in which at least two layers are bonded together (for example, two or more layers of the same or different materials). Bonding of the layers may be achieved in a variety of ways, such as by chemical adhesives, ultrasonic welding, thermal bonding, mechanical fastening (e.g., stitching) or other known techniques. In some examples, the laminate may include composite materials and vice versa.

[0078] In exemplary embodiments, the “film layer” described herein may include a thermoplastic material, and may include one or more of thermoplastic polymer materials and thermoplastic elastomer materials. For example, the film layer may include a thermoplastic polyester elastomer (TPEE). In exemplary embodiments, the film layer may include a hygroscopic material embedded in or mixed with the thermoplastic material. For example, the TPEE film layer may include polyethylene glycol, sodium polyacrylate, and the like. Due to the presence of the hygroscopic material, the film layer expands in one or more of the z, x, and y directions when exposed to moisture.

[0079] As used herein, the term “mesh material” means any textile having a permeable texture. The permeable texture may be imparted by a loose weave, loose knit, or by creating holes in the textile. The resulting textile has a large number of holes per inch and is highly permeable to air. As used herein, the term “spacer mesh material” means a material (knit or woven) in which the surface layer and back layer are connected by threads extending in a direction substantially perpendicular to the surface and back layers. As used herein, the term “fleece material” generally means a textile with a napped surface that provides good insulation.

[0080] Unless otherwise noted, all measurements provided herein are taken with the trim piece and / or garment in an unworn, stationary state, at standard ambient temperature and pressure.

[0081] Figure 1 is a perspective view of the first surface 110 of a portion of the trim piece 100. In some examples, the trim piece 100 can be constructed as a multilayer composite textile of different materials in the form of rolls or sheets. Furthermore, portions can be cut from the trim piece 100 and incorporated into garments. For example, a portion cut from the trim piece 100 can be attached along edges, openings, cuffs, etc. Furthermore, a portion can be attached to another panel or part of the garment. In some examples, a portion can form a wall or panel of the garment (for example, it does not necessarily have to overlap with another textile panel). In some examples, the trim piece 100 can include textiles (for example, a multilayer composite textile).

[0082] The trim piece 100 includes a composite structure 112 comprising a base layer 114 and a film layer 116 fixed to a first surface of the base layer 114 (better illustrated in Figure 2). The second surface 118 opposite the base layer 114 forms the first surface 110 of the trim piece 100. In exemplary embodiments, the base layer 114 may include a knitted structure, a woven structure, a nonwoven structure, a braided structure, and the like. In some exemplary embodiments, the base layer 114 may include one or more coatings or finishes applied to the opposite second surface 118, such as a durable water-repellent finish. In exemplary embodiments, the entire film layer 116 (i.e., the entire surface) is fixed to the base layer 114 by bonding. For example, the film layer 116 may be fixed to the base layer 114 by melting so that the film layer 116 penetrates or at least partially penetrates at least the first surface of the base layer 114. Other methods for fixing the film layer 116 to the substrate layer 114, including the use of adhesives, point bonding, and the like, are discussed herein. In some exemplary embodiments, the thickness of the film layer is uniform. In other exemplary embodiments, the film layer 116 may have one or more gaps in a uniform, gradient, or random pattern. In yet another exemplary embodiment, the film layer 116 may include a plurality of separate nodes fixed to the substrate layer 114. The nodes may be located in the same place along the substrate layer 114 having one or more slits as described herein (for example, circular, elliptical, square, rectangular, etc., nodes of the film may at least partially overlap the slit(s)).

[0083] The multiple slits 120 extend across the thickness of the composite structure 112. In exemplary embodiments, the multiple slits 120 may include a pattern having a first straight slit 121 and a second straight slit 123 that bisects or intersects the first straight slit 121 to form a “plus” shape. This specification envisions other exemplary shapes including a single slit, other patterns or shapes of two intersecting slits, and / or other patterns or shapes of two or more intersecting slits. In some examples, the slits may be straight, bent, or curved. In some examples, slits extending across the entire thickness of the composite material are associated with (e.g., form) a portion of the edge of the composite material, resulting in the formation of flaps (e.g., multiple flaps). In at least some examples, when the film layer 116 is exposed to moisture, the edges of the flaps lift or curl from the intersections of the slits and / or multiple slits, as described below and shown in Figure 3. The spacing and number of the multiple slits 120 shown in Figure 1 are for illustrative purposes only, and other spacing arrangements and different numbers of slits have also been considered and are within the scope of this specification. The rigidity of the substrate 114, and the introduction of areas of strength or weakness and / or lines (e.g., reinforcing ribs or score lines) in the substrate 114 may alter the curling properties of the flap 310, or cause it to fold along the hinge at the base of the flap, resulting in a behavior that appears to curl significantly along its length.

[0084] Figures 1–3 show several examples of slit configurations. In various examples, the slit 120 can include a variety of configurations. For example, Figure 17 shows several other slit “shapes” that illustrate the various configurations that can be used. For example, as shown in Figures 17A–B, one or more slits 120 are connected at only one end of the slits 120 to form a “T” or “L” shape (or an “I” or “H” shape – not shown). In at least some examples, as shown in Figures 17C–E, the slit configuration includes ear or tab shapes, which can be formed by a single curved slit 120 (e.g., a C-shape or an S-shape) or can include multiple slits 120 from end to end in different directions. Figures 17F–H show shapes formed by three, four, or five slits 120 intersecting or connecting to form a “star” pattern. Figures 17I–J show other configurations such as X-shapes and Y-shapes. In these examples as well, the flaps formed by one or more slits 120 may change dimensions when exposed to moisture or other external stimuli. In at least some examples, the slit configuration includes a single linear slit 120 (e.g., Figure 17K), where at least one edge on either side of the slit 120 (e.g., a portion of the composite structure associated with that edge) changes in dimension, such as by wrinkles or gaps, when the film layer 116 is exposed to a stimulus (e.g., moisture). In the above examples, the slit 120 may be formed in the composite structure 112 shown in Figure 1, which has a substrate layer 114 and a film layer 116, or any other composite structure described in the subject of this disclosure or equivalent.

[0085] The spacing between slit shapes may be determined based on a balance of several factors, including durability and desired airflow. For example, narrowing the spacing between slit groups may maximize airflow per unit area, but may increase the fragility of the composite structure 112. In exemplary embodiments, the spacing between slit groups may be between 0.2 inches and 0.5 inches.

[0086] Multiple slits 120 can be formed using a variety of techniques. For example, in some cases, multiple slits can be formed by cutting slits into the composite structure 112 using a laser or other heating device. In some cases, the heat from the laser or other heating device may at least partially soften (e.g., melt) one or more of the film layer 116 and / or substrate layer 114, and when the layer(s) reharden, the film layer 116 and substrate layer 114 may be at least partially bonded (e.g., cauterized) along the edges. Multiple slits 120 can be formed using one or more other techniques such as dies, stamps, blades, etc.

[0087] The trim piece 100 optionally includes a support layer 122, which may be in a face-sharing relationship with the film layer 116. As used herein, the term “face-sharing relationship” means that the plane of the film layer is in contact with, near contact with, or at least face-to-face with the plane of the support layer (e.g., there is no intervening structure between them). The support layer 122 can operate in a variety of ways to provide one or more different functions. In some examples, the support layer 122 may be configured to provide a surface facing the wearer. As previously mentioned, the support layer 122 includes mesh material, spacer mesh material, fleece material with openings, and the like.

[0088] Figure 2 shows a cross-section of the trim piece 100 at cutting line 2-2, which is aligned along the axis of some of the multiple slits 120. Figure 2 shows a film layer 116 fixed to the first surface 210 of the substrate layer 114. In some examples, the film layer 116 and the substrate layer 114 constitute a composite structure 112. In at least some examples, the film layer 116 is a separate layer applied to the surface of the substrate layer 114. In at least some examples, the film layer 116 may be incorporated at least partially into the substrate layer 114, for example, by melting. In some cases, the extent to which the film layer 116 is incorporated into the substrate layer 114 may affect the swelling time and / or reset time associated with the composite material 112. For example, a composite material 112 in which the film layer 116 is less incorporated into the substrate layer 114 (e.g., when the film layer 116 is coated on the surface) may behave differently from a composite material 112 in which the film layer 116 is more incorporated into the substrate layer 114 (e.g., when the film layer 116 is at least partially melted). Therefore, in some cases, the degree to which the film layer 116 penetrates into the substrate layer 114 can be controlled to achieve a desired effect. The slit 120 can include a variety of dimensions. For example, in some cases, the slit 120 may include lengths 121 ranging from 1 / 8 inch to 5 / 8 inch. In some examples, the length 121 is 0.5 inches.

[0089] In exemplary embodiments, the support layer 122 is fixed to the composite structure 112 along one or more peripheries of the support layer 122. In one example, the support layer 122 may be fixed to the composite structure 112 by stitching, as shown by stitch 212, but other fixing techniques, including bonding, adhesives, etc., are also considered here. In this example, a potential space 214 may be formed between the support layer 122 and a portion of the composite structure 112. In embodiments of this specification, it is also considered that the support layer 122 may be fixed to the composite structure 112 in an area inside the periphery of the support layer 122. Any and all embodiments, as well as modifications thereof, are assumed to be included in each embodiment of the present application.

[0090] Figure 3 shows a perspective view of a portion of the first surface 110 of the trim piece 100 after the trim piece 100 of Figure 1 has been exposed to an external stimulus. In exemplary embodiments, the external stimulus may be moisture in the form of sweat and / or water vapor generated by the wearer, for example. The sweat and / or water vapor comes into contact with the film layer 116 and dimensionally deforms the film layer 116, such as by expanding in one or more of the x, y, and / or z directions. The dimensional change of the film layer 116 causes the flap 310 formed by the multiple slits 120 to extend in the Z direction away from the support layer 122. More specifically, at least the apex of the flap 310, for example, apex 312, curls away from the intersection of the slits 120. The curling of the flap 310 forms a through-passage, for example, a through-passage 314, that penetrates the thickness of the composite structure 112. When the film layer 116 is exposed to moisture, the flap 310 changes dimensions, and the size of the through-passage 314 may increase further. Whether the size of the through-passage 314 has increased can be determined based on whether the distance between the two points on opposite sides of the through-passage 314 has increased. In some cases, as the saturation rate of the film layer 116 increases, the expansion rate of the film layer 116 may decrease. For example, when the film layer 116 reaches its maximum saturation, the expansion associated with the film layer 116 may slow down or stop.

[0091] As mentioned above, when the film layer 116 is exposed to moisture, the flap 310 may deform dimensionally, potentially increasing the size of the through-passage 314. In some cases, the enlarged through-passage 314 allows additional airflow to pass from one side of the composite structure 112 to the other. Increased airflow can improve the breathability or cooling effect of the garment, including the composite structure 112. Conversely, when moisture is removed from the film layer 116, the size of the through-passage 314 may decrease, potentially restricting airflow between the sides of the composite structure 112.

[0092] When the film layer 116 is no longer exposed to sweat or water vapor, moisture is removed from the film layer (by evaporation, etc.), and the flap 310 transitions to a closed state as shown in Figure 1, so the film layer 116 returns to a dormant state (i.e., its dimensions decrease in one or more directions of the x, y, and / or z directions). In this state, the flaps 310 are substantially planar to each other.

[0093] In various cases, the operation of the flap 310 (e.g., the speed of opening and closing, the degree to which the flap 310 opens) may depend on a variety of factors. In some cases, the operation may depend, at least in part, on the amount and nature of moisture in contact with the film layer, or conversely, on the intensity of external stimuli such as the evaporation rate. Furthermore, different flap configurations (e.g., the number and size of flaps) may affect the absorption / evaporation rate. For example, if the flap is small, it may be related to the smaller surface area (compared to a larger flap), which means less moisture needs to evaporate, resulting in a shorter refeed time (e.g., relaxation, curl removal, straightening, etc.). Based on this, a plus-shaped slit configuration (e.g., two intersecting slits) may, in some cases, have a slower reset than a star-shaped slit configuration with three intersecting slits, and the slit configuration can be adjusted to speed up or slow down the reset time for various applications.

[0094] Furthermore, the operation of the flaps 310 varies depending on the composition and properties of the substrate layer 114 and the thickness and orientation of the film layer 116. For example, the film layer 116 may tend to expand more rapidly or more in one or more of the x, y, and / or z directions, depending on its manufacturing method. For example, in a film manufactured by blow extrusion, the arrangement of the crystalline structure within the film may cause the film to expand more in the transverse or weft direction (perpendicular to the extrusion direction) than in the longitudinal direction (parallel to the extrusion direction). In exemplary embodiments, the orientation of such a film layer 116 relative to the directions of the multiple slits 120 may affect the nature, shape, speed, and / or degree of curling of the various flaps 310 when the film layer is exposed to external stimuli. For example, as shown in Figures 18A to 18D, when one of the slits 120 is oriented in a "plus" group parallel to the longitudinal direction of the film, which has greater lateral expansion (Figure 18A), the flap 320 tends to open more uniformly (Figure 18C) than when the slits 120 are oriented at a 45-degree angle to the longitudinal and transverse directions (Figures 18B and 18D). In the latter case, flaps opening in the transverse direction 320A often curl more or curl faster than flaps opening in the longitudinal direction 320B. In another example shown in Figures 19A to 19D, a single slit 120 parallel to the longitudinal direction of the film layer (Figure 19A) often shows more wrinkles (Figure 19C) than slits 120 parallel to the transverse direction of the film (Figures 19B and 19D). In at least some examples, the slits 120 are oriented in a direction not parallel to the transverse direction of the film layer 116 (a direction greater than 0 degrees and less than 180 degrees). The properties of the film 116 and the substrate layer 114 can also be selected such that the opening of the flap 310 is delayed until a certain amount of external stimulus (e.g., moisture) is reached. This can be achieved, for example, by selecting a substrate layer 114 with a stiffness level sufficient to initially resist bending due to the initial expansion of the film layer 116. In the above example, the slit 120 can be formed in the composite structure 112 of the example in Figure 1 having the substrate layer 114 and the film layer 116, or in any other composite structure described in the subject of this disclosure or equivalent thereto.

[0095] There are several different methods to determine whether a film layer exhibits greater expansion in one or more dimensions. This suggests which direction is the longitudinal direction and which direction is the transverse direction (e.g., of the film layer). For example, a baseline can be marked on the composite material, and then a sample can be cut from the composite material so that the sample or swatch includes the first segment of the baseline, with the second segment remaining on the composite material. Moisture can then be applied to the sample, and the sample can be observed to determine the direction in which it curls. Since the longitudinal axis of the curled portion is generally aligned with the longitudinal direction, it can be recorded (e.g., marked), and by aligning the first segment with the second segment, the longitudinal direction of the composite material can be determined.

[0096] Figure 4 shows a first example of the opposite side of the second surface 410 of the trim piece 100, which is formed from a support layer 122. The support layer 122 is shown to be fixed to the composite structure 112 by fixing regions 412 (e.g., stitches, adhesives, joints) extending along the periphery of the support layer 122, but in other exemplary embodiments, the fixing regions may be provided on one or more portions other than the periphery of the support layer 122. In exemplary embodiments, the multiple slits 120 do not penetrate the support layer 122. In the example shown in Figure 4, the support layer 122 is formed from a mesh material or spacer mesh material, as shown in the enlarged view showing the opening or aperture 414. The structure shown in Figure 4 may be useful for lightweight athletic wear such as bras, tights, support tanks, or tops.

[0097] Figure 5 shows a second example of the opposite side of the second surface 510 of the trim piece 100, which is formed from a support layer 122. The support layer 122 is shown to be fixed to the composite structure 112 by fixing areas 512 (e.g., stitches, adhesives, joints) extending along the periphery of the support layer 122. In the exemplary embodiment, the slits 120 do not penetrate the support layer 122. In the example shown in Figure 5, the support layer 122 is formed from fleece material. The support layer 122 includes the slits 120 and the axially aligned openings 514. This is because fleece is not as permeable as mesh or spacer mesh materials, which are structurally permeable. The axial alignment of the slits 120 and the openings 514 allows sweat and / or water vapor to come into contact with the film layer 116. The structure shown in Figure 5 may be useful for thermal clothing items such as jackets, coats, and mid-layers.

[0098] Figure 6 is a cross-sectional view of the trim piece 100 cut along the cutting line 6-6 in Figure 5. Figure 6 is provided to show the axial alignment of the multiple slits 120 of the composite structure 112 and the multiple openings 514 of the support layer 122. For example, the multiple slits 120 are aligned with the multiple openings 514 along the axis 610.

[0099] Figures 7 and 8 show a first use example of the trim piece 100 in the form of a bra 700. Figure 7 shows the bra 700 before exposure to external stimuli, and Figure 8 shows the bra 700 after exposure to external stimuli. The depiction of the bra 700 is illustrative, and it is assumed herein that the bra 700 may include configurations other than those illustrated. The bra 700 includes a front section 710 including a first chest cover section 712 and a second chest cover section 714, each chest cover section configured to cover the wearer's right and left breasts, respectively. Shoulder straps 716 extend from the upper margin of the front section 710 and are configured to extend over the wearer's shoulders. An underband 718 extends from the lower margin of the front section 710 and is configured to surround the wearer's torso area.

[0100] In an exemplary embodiment, the underband 718 is a trim piece 100 having a plurality of slits 120. A base layer 114 forms the outer surface of the underband 718, and a support layer 122 forms the inner surface of the underband 718 (not shown). In an exemplary embodiment, the base layer 114 may include a lightweight knitted or woven material suitable for use in athletic wear, and the support layer 122 may include a mesh material or spacer mesh material that further contributes to the lightweight function of the bra 700. The plurality of slits 120 are shown to extend along the length of the underband 718.

[0101] Figure 8 shows the underband 718 after being exposed to moisture in the form of sweat and / or water vapor generated by the wearer. The moisture passes through the support layer 122 and comes into contact with the film layer 116, causing the film layer 116 to expand and change dimensions. The flap 310 curls outward from the inner surface of the underband 718 to form a passage 314, which facilitates the dissipation of heat and / or water vapor generated by the wearer and helps to cool the wearer. When the wearer is not sweating, the film layer 116 returns to its non-expanded state and the flap 310 closes.

[0102] Figure 9 shows a second example of using the trim piece 100 in the form of a torso garment 900. Although shown as a vest, this specification assumes that the article includes all types of torso garments, such as jackets, coats, hoodies, and pullovers. The torso garment 900 includes a front torso section 910 and a rear torso section (not shown), which together define a neck opening 912, a waist opening 914, and arm openings 916.

[0103] The upper body garment 900 includes, in exemplary embodiments, a plurality of baffles 918 containing insulating filler such as down, loose synthetic fibers, or nonwoven sheets. An example of a baffle is shown in Figure 1. It is shown in Figure 10 and is indicated by reference numeral 1000. The baffle 1000 includes an outer layer 1010 and an inner layer 1012 that define a chamber or pocket 1014 containing insulating filler 1016.

[0104] The upper body garment 900 further includes a plurality of trim pieces 920 positioned between adjacent baffles 918, each trim piece 920 separating adjacent baffles 918. The trim pieces 920 may be fixed to the baffles 918 by various fastening techniques such as stitching, joining, or adhesive. The trim piece 920 may be a trim piece 100 having a base layer 114, a film layer 116 fixed to the base layer 114, and a support layer 122. Although Figure 9 shows the trim pieces 920 positioned between adjacent baffles 918, it is conceivable herein that the trim pieces 920 may be positioned at individual locations on the garment item 900. For example, the trim pieces 920 are positioned primarily in the front upper chest region and the upper back region of the garment 900. When the garment 900 is worn by a wearer, these regions may correspond to the wearer's high-temperature and / or high-sweating areas based on the body's heat and sweat map.

[0105] Figure 9 shows the upper body garment 900 before exposure to external stimuli, with multiple slits 120 closed to help retain heat. In exemplary embodiments, to give the upper body garment 900 additional warmth and / or thermal insulation properties, a support layer 122 may be formed from a fleece material having openings, as shown in Figure 5.

[0106] Figure 11 shows the upper body garment 900 after exposure to external stimuli in the form of sweat and / or water vapor generated by the wearer, for example. The sweat and / or water vapor passes through the openings in the support layer 122 and comes into contact with the film layer 116, causing the film layer 116 to expand, and the flaps 310 extend outward from the support layer 122 to form a passage 314 through which the water vapor dissipates. In exemplary embodiments, depending on where the sweating or water vapor is generated, only a portion of the flaps 310 may open while the other flaps remain closed. For example, as shown in Figure 11, the trim piece 920 in the upper chest area of ​​the upper body garment 900 may be exposed to more water vapor and / or sweat because this area corresponds to the wearer's high heat and / or sweating area. Therefore, the flaps 310 in this area open, while the flaps 310 near the waist opening 914 remain closed, which helps to retain more warmth / heat in this area. As a result, dynamic and customized ventilation is achieved based on the wearer's individual perspiration and moisture generation.

[0107] Figures 9 and 11 show upper body garments, but aspects of this specification also consider other uses of the trim piece 100. For example, the trim piece 100 may form a waistband and / or cuff of an upper body garment, or a waistband and / or cuff of a lower body garment. The trim piece 100 may also be inserted as a panel into an upper body garment or a lower body garment to provide ventilation to desired areas of each garment. Any and all forms, as well as any variations thereof, are intended to be included within the scope of this specification.

[0108] Figures 12-14 show configuration examples that can be optionally used with respect to, for example, the upper body garment 900 or any other garment or article described herein. Figure 12 shows a perspective cross-sectional view of a portion of the upper body garment 900 before the trim piece 920 is exposed to external stimuli. Figure 12 shows two adjacent baffles 918a and 918b separated by the trim piece 920. The cover piece 1210 includes a first linear edge 1212 that is fixed or assembled to the baffle 918a using a fastening technique such as stitching, bonding, or adhesive. The opposite second linear edge 1214 is not fixed or assembled to the upper body garment 900. The second linear edge 1214 extends along the longitudinal length of the trim piece 920.

[0109] In exemplary embodiments, the cover piece 1210 may be formed of a tightly woven material resistant to water and / or wind penetration. Optionally, the cover piece 1210 may be treated with a durable water repellent to provide enhanced water resistance. The cover piece 1210, more specifically the second linear edge 1214, is positioned to partially or completely cover or conceal the trim piece 920 containing the multiple slits 120. This prevents moisture or precipitation from the external environment from entering the upper body garment 900 through the slits 120.

[0110] A side view of this structure is shown in Figure 13. The flap 310 is laid flat because the trim piece 920 is not exposed to external stimuli. The second linear edge 1214 of the cover piece 1210 covers the outer surface of the trim piece 920, and the first linear edge 1212 is shown fixed to the baffle 918a.

[0111] Another side view of this structure after the trim piece 920 has been exposed to moisture such as sweat and water vapor from the wearer is shown in Figure 14. The flap 310 is shown in an outward-extended position. The flap 310 mechanically pushes the cover piece 1210 outward so that the cover piece 1210 does not obstruct the movement of air or water vapor through the passage 314 and at the same time prevents precipitation from the external environment from entering the upper body garment 900 through the passage 314. The cover piece may be sized and configured such that the second straight edge continues to cover the trim piece while the flap 310 is in the extended position.

[0112] Figure 15 shows a flow chart of a method 1500 for forming a trim piece, such as a trim piece 100 used in clothing. In step 1510, multiple slits, such as a slit 120, are formed to the thickness of a composite structure, such as a composite structure 112 of the trim piece 100. The composite structure includes a base layer, such as a base layer 114, and a film layer, such as a film layer 116 fixed to the first surface of the base layer. The film layer is formed of a material that changes dimensions when exposed to moisture. For example, the film layer may expand when exposed to moisture.

[0113] In step 1512, a support layer, such as support layer 122, is fixed to the composite structure such that the first surface of the support layer shares a surface with the film layer. In exemplary embodiments, the support layer may include a mesh material, a spacer mesh material, or another material with high permeability. In other exemplary embodiments, the support layer may be formed from a fleece material having multiple slits formed through the composite structure and axially aligned openings.

[0114] As shown above, in some examples, composite materials including a film layer and a substrate layer can be incorporated into panels or parts of various types of garments. For example, referring to Figures 16A–16C, the composite material can be incorporated into a torso garment 1610 (e.g., a jacket, windbreaker, etc.), for example, in the upper back portion of the torso garment 1610. In some examples, the torso garment 1610 may include a multilayer structure including an outer layer 1612. Furthermore, as shown in the cross-sectional views of Figures 16B and 16C (e.g., with a portion of the outer layer 1612 cut off), a composite layer panel 1614 including a film layer and a substrate layer can be placed beneath the outer layer 1612. The film layer and substrate layer may include all the features described throughout this disclosure. In some examples, the torso garment 1610 may include a mesh layer or other inner lining beneath the composite layer panel 1614 (e.g., between the composite layer panel 1614 and the wearer when the torso garment 1610 is being worn).

[0115] In some examples, the outer layer 1612 may include a bottom edge 1616 that extends below the bottom row of slits 1618 (for example, the bottom edge 1616 is positioned further away from the collar of the upper body garment 1610 and closer to the hem of the upper body garment 1610 compared to the bottom row of slits 1618). Thus, the outer layer 1612 may, in some cases, reduce the possibility of precipitation (e.g., from the external environment) or other environmental elements (e.g., debris) entering the upper body garment 1610 through the passage 1620. In at least some examples, the outer layer 1612 may be treated with a DWR (durable water repellent or other surface treatment), which can also contribute to keeping environmental elements away from the composite layer panel 1614.

[0116] In various examples, the outer layer 1612 is related to draping properties, so that it functions as an effective shield against environmental elements (for example, by opening the through-hole 1620) while also allowing sufficient ventilation. That is, as described in relation to the cover piece 1210 in Figure 14, the outer layer 1612 fits loosely enough over the composite layer panel 1614, allowing the flap exposed to stimuli to open.

[0117] The embodiments of this disclosure are described for illustrative purposes only, not limiting purposes. Those skilled in the art will see alternative embodiments that do not deviate from the scope thereof. Those skilled in the art may develop alternative means to implement the aforementioned improvements without departing from the scope of this disclosure.

[0118] Certain features and subcombinations may be useful and may be used without reference to other features and subcombinations, and it will be understood that these are intended within the scope of the claims. It is not necessary to perform all steps described in the various figures in the specific order described.

Claims

1. A garment trim piece (100), the trim piece (100) comprises a composite structure (112) including a base layer (114) and a film layer (116) whose dimensions change when exposed to moisture, the film layer (116) being fixed to a first surface of the base layer (114), the composite structure (112) including a plurality of slits (120) extending over the thickness of the composite structure (112), the trim piece (100) further comprising a support layer (122) fixed to the composite structure (112), the support layer (122) sharing a surface with the film layer (116), the support layer (122) including a napped surface and a textile having thermal insulation properties, and including one or more openings (514), at least a portion of the one or more openings being axially aligned and collinear with at least a portion of the plurality of slits (120).

2. The trim piece (100) according to claim 1, wherein the base material layer (114) includes one of a knitted textile, a nonwoven textile, or a woven textile.

3. The trim piece (100) according to claim 1, wherein the film layer (116) is made of a thermoplastic material.

4. The trim piece (100) according to claim 3, wherein the thermoplastic material is a thermoplastic polyester elastomer (TPEE).

5. The trim piece (100) according to claim 1, wherein the entire film layer (116) is fixed to the first surface of the base material layer (114).

6. The trim piece (100) according to claim 1, wherein the film layer (116) is bonded to the base material layer (114).

7. The trim piece (100) according to claim 1, wherein the support layer (122) is fixed to the composite structure (112) along one or more periphery edges of the support layer (122).

8. The trim piece (100) according to claim 1, wherein the support layer (122) includes a fleece material.