Arc-protective fabric

Abstract

The present application relates to fabrics for use in arc-protective garments. For example, an exemplary arc-protective garment fabric includes an outer gradient layer, a middle gradient layer, and an inner gradient layer. In some examples, the outer gradient layer is formed from a first yarn interwoven with a third yarn, the middle gradient layer is formed from a second yarn, and the inner gradient layer is formed from the second yarn interwoven with a fourth yarn. In some examples, the fourth yarn is more hydrophobic than the first yarn, the second yarn, and the third yarn.

Description

Technical Field

[0001] This invention relates to fabrics for arc flash protection clothing. Background Technology

[0002] There are many technical challenges and difficulties associated with fabrics used in arc flash protection clothing. For example, many fabrics used in arc flash protection clothing do not provide sufficient breathability. Summary of the Invention

[0003] The various embodiments described herein relate to fabrics for arc flash protection clothing. For example, exemplary embodiments of this disclosure provide exemplary fabrics for arc flash protection clothing that improve breathability and comfort, reduce weight and thickness, and enhance protection against environmental hazards caused by arc flash events.

[0004] Exemplary arc flash protection fabrics are provided according to various embodiments of this disclosure. In some embodiments, the exemplary arc flash protection fabrics include an outer gradient layer, a middle gradient layer, and an inner gradient layer.

[0005] In some implementations, the outer gradient layer comprises multiple first yarns interwoven with multiple third yarns.

[0006] In some implementations, the intermediate gradient layer contains multiple second yarns.

[0007] In some implementations, the inner gradient layer comprises multiple second yarns interwoven with multiple fourth yarns.

[0008] In some implementations, the multiple fourth yarns are more hydrophobic than the multiple first yarns, multiple second yarns, and multiple third yarns.

[0009] In some implementations, the percentage of first hydrogen bonds in the first material associated with the plurality of first yarns is higher than the percentage of second hydrogen bonds in the second material associated with the plurality of second yarns.

[0010] In some implementations, the percentage of third hydrogen bonds in the third material associated with multiple third yarns is higher than the percentage of second hydrogen bonds in the second material associated with multiple second yarns.

[0011] In some implementations, multiple third yarns contain elastic fiber material.

[0012] In some implementations, the multiple second yarns are more hydrophobic than the multiple first yarns and multiple third yarns.

[0013] In some implementations, multiple first yarns and multiple third yarns form a plain weave pattern.

[0014] In some implementations, multiple second yarns and multiple fourth yarns form a plain weave.

[0015] In some implementations, the inner gradient layer includes multiple rib portions that form multiple gaps between the inner gradient layer and the outer gradient layer.

[0016] In some implementations, the exemplary arc-resistant clothing fabric further includes a membrane layer attached to the outer surface of the outer gradient layer.

[0017] In some implementations, the exemplary arc-resistant clothing fabric further includes an abrasion protection layer attached to the outer surface of the membrane layer.

[0018] The foregoing illustrative overview of this disclosure and other exemplary purposes and / or advantages, as well as the ways in which they are achieved, are further explained in the following detailed description and accompanying drawings. Attached Figure Description

[0019] The description of the illustrative embodiments can be read in conjunction with the accompanying drawings. It should be understood that, for the sake of simplicity and clarity, unless otherwise described, the elements shown in the figures are not necessarily drawn to scale. For example, unless otherwise described, the dimensions of some elements may be enlarged relative to other elements. Embodiments incorporating the teachings of this disclosure are shown and described in conjunction with the accompanying drawings presented herein.

[0020] Figure 1A This is an exemplary perspective view of an exemplary arc-resistant clothing fabric according to some embodiments of the present disclosure.

[0021] Figure 1B It is based on some implementation schemes of this disclosure. Figure 1A An exemplary side view of an exemplary arc-proof clothing fabric is shown in the image.

[0022] Figure 2 This is an exemplary top view showing exemplary yarns associated with exemplary arc-resistant clothing fabrics according to some embodiments of this disclosure.

[0023] Figure 3 This is an exemplary block diagram illustrating exemplary hydrogen bonds associated with an exemplary gradient layer of an exemplary arc-resistant garment fabric according to some embodiments of the present disclosure.

[0024] Figure 4A This is an exemplary exploded view of an exemplary arc-resistant clothing fabric according to some embodiments of this disclosure.

[0025] Figure 4B It is based on some implementation schemes of this disclosure. Figure 4A An exemplary enlarged view of an exemplary arc-resistant clothing fabric is shown in the image.

[0026] Figure 5 This is an exemplary exploded view of an exemplary arc-resistant clothing fabric according to some embodiments of this disclosure. Detailed Implementation

[0027] Some embodiments of this disclosure will now be described more fully below with reference to the accompanying drawings, which illustrate some, but not all, of the embodiments of this disclosure. In fact, this disclosure may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to enable this disclosure to meet applicable legal requirements. The same numerals consistently refer to the same elements.

[0028] As used herein, terms such as “front,” “rear,” “top,” etc., in the examples provided below, are used for illustrative purposes to describe the relative position of certain components or portions of components. Furthermore, as will be apparent to those skilled in the art based on this disclosure, the terms “substantially” and “approximately” indicate that the referenced element or related description is accurate within applicable engineering tolerances.

[0029] As used herein, the term “comprising” means including but not limited to, and should be interpreted in the manner commonly used in the patent context. The use of broader terms (e.g., “comprising,” “including,” and “having”) should be understood to be supported by narrower terms (e.g., “consisting of,” “substantially of,” and “comprising substantially of”).

[0030] The phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally mean that a particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of this disclosure and may be included in more than one embodiment of this disclosure (importantly, such phrases do not necessarily refer to the same embodiment).

[0031] The terms “example” or “exemplary” are used herein to mean “serving as an instance, example, or illustration.” Any implementation described herein as “exemplary” is not necessarily to be construed as being more preferred or advantageous than other implementations.

[0032] If the specification states that a component or feature "may," "can," "is able to," "should," "will," "preferably," "may," "usually," "optionally," "for example," "often," or "may" (or other such language) be included or have that feature, then the particular component or feature is not required to be included or have that feature. Such a component or feature may be optionally included in some embodiments, or it may be excluded.

[0033] As described above, exemplary embodiments of this disclosure generally relate to fabrics for arc flash protection clothing. In this disclosure, the term "arc flash protection clothing" refers to a class of personal protective equipment (PPE) in the form of protective clothing (e.g., but not limited to jackets, trousers, gloves, etc.) that protects workers from hazards associated with arc flash events (e.g., but not limited to electrical hazards, thermal hazards, etc.).

[0034] In this disclosure, the term "arc flash event" refers to a sudden release of strong electrical energy that can produce an electric arc or flame. For example, an exemplary arc flash event may be caused by a short circuit or equipment failure in an electrical system. When an arc flash event occurs, bursts of heat and light may be released into the environment, causing burns or injuries to nearby personnel. Therefore, workers at risk of exposure to arc flash events may choose to wear arc flash suits to protect themselves from the hazards associated with arc flash events. Examples of such workers may include, but are not limited to, electricians, utility linemen, construction workers, industrial equipment maintenance technicians, etc.

[0035] However, there are many technical challenges and difficulties associated with arc flash protection clothing.

[0036] For example, many arc flash suits use thick, heavy fabrics to provide insulation and protection against the intense heat released from arc flash events. However, such thick, heavy fabrics restrict the movement of workers wearing the suits, potentially leading to less efficient task performance, especially when such tasks require frequent movement. Furthermore, thick, heavy fabrics are less breathable. In this disclosure, the term "breathability" refers to the ability of a fabric to allow air and moisture to pass through it. The thick, heavy fabrics in many arc flash suits can trap body heat and lack proper ventilation, leading to discomfort and potential heat exhaustion for workers after prolonged wear.

[0037] The various embodiments disclosed herein overcome these technical challenges and difficulties, and provide various technical improvements and advantages.

[0038] For example, various exemplary embodiments of this disclosure provide exemplary arc flash protection fabrics comprising an outer gradient layer, an intermediate gradient layer, and an inner gradient layer. In some embodiments, the intermediate gradient layer is located between the outer and inner gradient layers. In some embodiments, the percentage of hydrogen bonds gradually increases from the inner gradient layer to the outer gradient layer, resulting in unidirectional moisture transfer from the inner gradient layer to the outer gradient layer. In some embodiments, arc flash protection clothing using exemplary fabrics according to some embodiments of this disclosure is suitable for prolonged and frequent wear because it transfers moisture from the wearer's skin to the outer surface of the arc flash protection clothing. Therefore, exemplary arc flash protection fabrics according to some embodiments of this disclosure provide technical improvements and advantages, such as, but not limited to, improved breathability and comfort, reduced weight and thickness, and enhanced protection against hazards caused by arc flash events.

[0039] Now for reference Figure 1A and Figure 1B An exemplary view of an exemplary arc-proof clothing fabric according to some embodiments of the present disclosure is shown.

[0040] In particular, Figure 1A An exemplary perspective view 100A is shown of an exemplary arc-resistant clothing fabric 101 according to some embodiments of the present disclosure. Figure 1B Some embodiments according to this disclosure are shown. Figure 1A An exemplary side view 100B of an exemplary arc-resistant clothing fabric 101 is shown in the figure.

[0041] According to some embodiments of this disclosure, exemplary arc flash protection clothing fabrics comprise multiple gradient layers. In this disclosure, the term "gradient layer" refers to a layer or region of fabric that provides a certain level of hydrophilicity and / or exhibits a specific level of affinity for water. For example, an exemplary fabric may comprise multiple regions associated with different degrees of hydrophilicity. In such instances, the exemplary fabric comprises multiple gradient layers, each gradient layer corresponding to one of multiple regions.

[0042] exist Figure 1B In the example shown, the exemplary arc-proof clothing fabric 101 includes multiple gradient layers, such as, but not limited to, an outer gradient layer 103, a middle gradient layer 105, and an inner gradient layer 107.

[0043] In some embodiments, the inner gradient layer 107 corresponds to the layer of the exemplary arc flash protection fabric 101 that is closest to the wearer's skin when the exemplary arc flash protection fabric 101 is used in the exemplary arc flash protection garment, and the outer gradient layer 103 corresponds to the layer of the exemplary arc flash protection fabric 101 that is furthest from the wearer's skin when the exemplary arc flash protection fabric 101 is used in the exemplary arc flash protection garment. Figure 1B As shown, the intermediate gradient layer 105 is located between the inner gradient layer 107 and the outer gradient layer 103.

[0044] In some embodiments, the hydrophilicity of the exemplary arc flash fabric 101 increases from the inner gradient layer 107 to the outer gradient layer 103, resulting in unidirectional moisture transfer from the inner gradient layer 107 to the outer gradient layer 103, thereby improving the breathability of the exemplary arc flash fabric 101. In some embodiments, the hydrophilicity variation between the inner gradient layer 107, the intermediate gradient layer 105, and the outer gradient layer 103 can be achieved by interweaving different yarns with different hydrophilic properties.

[0045] For example, the outer gradient layer 103 is formed by and / or contains multiple first yarns interwoven with multiple third yarns, the middle gradient layer 105 is formed by and / or contains multiple second yarns, and the inner gradient layer 107 is formed by and / or contains multiple second yarns interwoven with multiple fourth yarns.

[0046] Continuing with this type of example, the fourth yarn is the most hydrophobic (e.g., more hydrophobic than the first, second, and third yarns). In some instances, the second yarn is more hydrophobic than the first yarn and also more hydrophobic than the third yarn. Thus, the outer gradient layer 103 (which contains the first and third yarns) is more hydrophilic than the middle gradient layer 105 (which contains the second yarn), and the middle gradient layer 105 is more hydrophilic than the inner gradient layer 107 (which contains the second and fourth yarns).

[0047] This document describes additional details associated with exemplary arc-resistant clothing fabrics according to some embodiments of this disclosure, including but not limited to those combining... Figure 2 The details described.

[0048] Reference Figure 2 An exemplary top view 200 is provided, which shows exemplary yarns associated with an exemplary arc-resistant clothing fabric 202 according to some embodiments of the present disclosure.

[0049] exist Figure 2 In the example shown, the exemplary arc-proof clothing fabric 202 is formed by interlacing multiple warp yarns with multiple weft yarns and / or includes interlacing multiple warp yarns with multiple weft yarns.

[0050] In this disclosure, the term "warp" refers to the direction that extends longitudinally along the length of the fabric. Figure 2 In the example shown, the warp direction of the exemplary arc flash protection fabric 202 is indicated by arrow 204. In this disclosure, the warp yarn is also referred to as "warp thread".

[0051] In this disclosure, the term "weft" refers to the direction that extends laterally across the width of the fabric. Figure 2 In the example shown, the weft direction of the exemplary arc flash protection fabric 202 is indicated by arrow 206. In this disclosure, the weft yarn is also referred to as "weft thread".

[0052] In some embodiments, the exemplary arc flash protection fabric 202 comprises yarns with different hydrophilic properties. For example, the exemplary arc flash protection fabric 202 comprises a plurality of first yarns, a plurality of second yarns, a plurality of third yarns, and a plurality of fourth yarns. In some embodiments, the plurality of first yarns and the plurality of second yarns are warp yarns in the warp direction, and the plurality of third yarns and the plurality of fourth yarns are weft yarns in the weft direction.

[0053] exist Figure 2 In the shown example, the multiple first yarns include, but are not limited to, first yarn 208A, first yarn 208B, first yarn 208C, first yarn 208D, and first yarn 208E. The multiple second yarns include, but are not limited to, second yarn 210A, second yarn 210B, second yarn 210C, and second yarn 210D. The multiple third yarns include, but are not limited to, third yarn 212A, third yarn 212B, and third yarn 212C. The multiple fourth yarns include, but are not limited to, fourth yarn 214A, fourth yarn 214B, and fourth yarn 214C.

[0054] Similar to the above combination Figure 1A and Figure 1B The exemplary arc flash protection fabric 101 and exemplary arc flash protection fabric 202 (shown in the description) Figure 2 The (middle) layer contains multiple gradient layers, such as an outer gradient layer, a middle gradient layer, and an inner gradient layer. In some embodiments, each of the outer gradient layer, the middle gradient layer, and the inner gradient layer is formed by and / or contains multiple yarns.

[0055] For example, the outer gradient layer of the exemplary arc flash protection fabric 202 includes, and / or is formed therefrom, multiple first yarns (including but not limited to, first yarns 208A, first yarn 208B, first yarn 208C, first yarn 208D, and first yarn 208E) interwoven with multiple third yarns (including but not limited to, third yarns 212A, third yarn 212B, and third yarn 212C).

[0056] exist Figure 2 In the example shown, multiple first yarns and multiple third yarns interweave with each other in an alternating sequence to form a plain weave in the outer gradient layer. For example, each of the multiple third yarns interweaves above a first yarn and then below the next first yarn, forming a uniform and consistent crsscross pattern throughout the outer gradient layer.

[0057] For example, third yarn 212A is interwoven above first yarn 208A, below first yarn 208B, above first yarn 208C, below first yarn 208D, and above first yarn 208E. Third yarn 212B is interwoven below first yarn 208A, above first yarn 208B, below first yarn 208C, above first yarn 208D, and below first yarn 208E. Third yarn 212C is interwoven above first yarn 208A, below first yarn 208B, above first yarn 208C, below first yarn 208D, and above first yarn 208E.

[0058] In some implementations, the plain weave structure forming the outer gradient layer provides various technical benefits and advantages. For example, interlacing multiple first yarns with multiple third yarns in a plain weave improves the tensile strength and structural consistency of the exemplary arc flash protection fabric 202, thereby improving protection against hazards caused by arc flash events. As another example, the plain weave structure of the outer gradient layer improves air circulation within the outer gradient layer, thereby improving the breathability of the exemplary arc flash protection fabric 202 and making it more comfortable to wear.

[0059] Alternatively, the intermediate gradient layer of the exemplary arc flash fabric 202 may include or be formed of multiple second yarns (including but not limited to second yarns 210A, 210B, 210C and 210D).

[0060] exist Figure 2 In the illustrated example, multiple second yarns are interwoven beneath multiple third yarns, such that the intermediate gradient layer is fixed beneath the outer gradient layer of the exemplary arc-resistant fabric 202. For example, second yarn 210A is interwoven beneath third yarns 212A, 212B, and 212C. Second yarn 210B is interwoven beneath third yarns 212A, 212B, and 212C. Second yarn 210C is interwoven beneath third yarns 212A, 212B, and 212C. Second yarn 210D is interwoven beneath third yarns 212A, 212B, and 212C.

[0061] Alternatively, the inner gradient layer of the exemplary arc flash fabric 202 may include or be formed of multiple second yarns (including but not limited to second yarns 210A, second yarns 210B, second yarns 210C and second yarns 210D) interwoven with multiple fourth yarns (including but not limited to fourth yarns 214A, fourth yarns 214B and fourth yarns 214C).

[0062] exist Figure 2In the example shown, multiple second yarns and multiple fourth yarns interweave with each other in an alternating sequence to form a plain weave in the inner gradient layer. For example, each of the multiple fourth yarns interweaves above a second yarn and then below the next second yarn, forming a uniform and consistent cross-shaped weave throughout the inner gradient layer.

[0063] For example, fourth yarn 214A is interwoven above second yarn 210A, below second yarn 210B, above second yarn 210C, and below second yarn 210D. Fourth yarn 214B is interwoven below second yarn 210A, above second yarn 210B, below second yarn 210C, and above second yarn 210D. Fourth yarn 214C is interwoven above second yarn 210A, below second yarn 210B, above second yarn 210C, and below second yarn 210D.

[0064] In some implementations, the plain weave structure forming the inner gradient layer provides various technical benefits and advantages. For example, interlacing multiple second yarns with multiple fourth yarns improves the tensile strength and structural consistency of the exemplary arc flash fabric 202, thereby improving protection against hazards caused by arc flash events. As another example, the plain weave structure of the inner gradient layer improves air circulation within the inner gradient layer, thereby improving the breathability of the exemplary arc flash fabric 202 and making it more comfortable to wear.

[0065] As described above, the exemplary arc flash protection fabric 202 comprises yarns with different hydrophilic properties.

[0066] In some embodiments, multiple second yarns (including but not limited to second yarns 210A, 210B, 210C, and 210D) are more hydrophobic than multiple first yarns (including but not limited to first yarns 208A, 208B, 208C, 208D, and 208E). In some embodiments, multiple second yarns (including but not limited to second yarns 210A, 210B, 210C, and 210D) are more hydrophobic than multiple third yarns (including but not limited to third yarns 212A, 212B, and 212C).

[0067] In some implementations, multiple fourth yarns (including but not limited to fourth yarn 214A, fourth yarn 214B, and fourth yarn 214C) are hydrophobic. In other words, the multiple fourth yarns are more hydrophobic than the multiple first yarns, multiple second yarns, and multiple third yarns.

[0068] In some implementations, the difference in hydrophilicity between different yarns may be due to the different materials forming the different yarns. For example, multiple first yarns (including but not limited to first yarns 208A, 208B, 208C, 208D, and 208E) contain or are composed of a first material; multiple second yarns (including but not limited to second yarns 210A, 210B, 210C, and 210D) contain or are composed of a second material; multiple third yarns (including but not limited to third yarns 212A, 212B, and 212C) contain or are composed of a third material; and multiple fourth yarns (including but not limited to fourth yarns 214A, 214B, and 214C) contain or are composed of a fourth material. Continuing this example, the second material is the most hydrophobic of the first, second, and third materials.

[0069] In some embodiments, the hydrophilicity (or hydrophilicity) of a material can be measured by its hydrogen bond percentage. In this disclosure, the term "hydrogen bond percentage" refers to the proportion of available sites on the material that can form intermolecular hydrogen bonds. In some embodiments, the hydrogen bond percentage represents the percentage of hydrophilic functional groups capable of forming hydrogen bonds (which may be represented as "-XH" and may include, but are not limited to, hydroxyl (-OH), amino (-NH2), carboxyl (-COOH), etc.). Since water molecules (H2O) are polar and contain both positive and negative charges, the more -XH groups present in the material that attract and contact the water molecule interface, the more absorbent the material is. In other words, the higher the hydrogen bond percentage, the more hydrophilic the material.

[0070] Continuing with the examples above, the first material may comprise or consist of a blend of hydrophilic yarns (including but not limited to viscose, lyocell, cotton, and superabsorbent polymer (SAF)) and hydrophobic fibers (including but not limited to polypropylene (PP), polyethylene (PE), polylactic acid (PLA), polybutylene adipate terephthalate (PBAT), aramid, fire-retardant acrylic, chitosan, etc.). In some embodiments, the percentage of hydrogen bonds in the first material is in an exemplary range of approximately 30% to approximately 60%. In some embodiments, this exemplary range provides technical benefits and advantages, such as, but not limited to, improved hydrophilicity of the outer gradient layer and the generation of unidirectional water transfer from the inner gradient layer to the outer gradient layer, further details of which are described herein.

[0071] Alternatively, the second material may comprise or consist of a blend of hydrophilic yarns (including but not limited to viscose, lyocell, cotton, SAF) and hydrophobic fibers (including but not limited to PP, PE, PLA, PBAT, aramid, flame-retardant acrylic, chitosan, etc.). In some embodiments, the percentage of hydrogen bonds in the second material is in an exemplary range of about 20% to about 50%. In some embodiments, this exemplary range provides technical benefits and advantages, such as, but not limited to, reducing the hydrophilicity of the intermediate gradient layer and generating unidirectional water transfer from the intermediate gradient layer to the outer gradient layer, the additional details of which are described herein.

[0072] Alternatively, the third material may comprise or consist of a blend of hydrophilic yarns (including but not limited to viscose, lyocell, cotton, SAF) and hydrophobic fibers (including but not limited to PP, PE, PLA, PBAT, aramid, flame-retardant acrylic, chitosan, etc.). In some embodiments, the percentage of hydrogen bonds in the third material is in an exemplary range of about 30% to about 60%. In some embodiments, this exemplary range provides technical benefits and advantages, such as, but not limited to, improved hydrophilicity of the outer gradient layer and unidirectional water transfer from the intermediate gradient layer to the outer gradient layer, further details of which are described herein.

[0073] Alternatively or concurrently, the third material may comprise an elastic fiber material (e.g., but not limited to spandex). For example, the third material may comprise 2% by weight of spandex. In some embodiments, blending the elastic fiber material into the third material provides technical benefits and advantages, such as, but not limited to, resulting in the formation of multiple rib portions on the inner gradient layer, further details of which are described herein.

[0074] Alternatively, the fourth material may comprise or be composed of hydrophobic fibers (including but not limited to PP, PE, PLA, PBAT, aramid, flame-retardant acrylic, chitosan, etc.), providing technical benefits and advantages, such as, but not limited to, reducing the hydrophilicity of the inner gradient layer and generating unidirectional water transfer from the inner gradient layer to the outer gradient layer, the additional details of which are described herein.

[0075] In some implementations, the hydrogen bond percentages of the first material and the third material can be the same or close to each other.

[0076] In some implementations, the hydrogen bond percentage of the second material is lower than that of the first material and also lower than that of the third material.

[0077] Because the outer gradient layer contains multiple first yarns (first material) and multiple third yarns (third material), while the middle gradient layer contains multiple second yarns (second material), the outer gradient layer is more hydrophilic than the middle gradient layer, resulting in a unidirectional water transfer from the middle gradient layer to the outer gradient layer.

[0078] In some implementations, the hydrogen bond percentage of the second material is higher than that of the fourth material (which may consist only of hydrophobic fibers). Because the intermediate gradient layer comprises multiple second yarns (second material), while the inner gradient layer comprises multiple second yarns (second material) and multiple fourth yarns (fourth material), the intermediate gradient layer is more hydrophilic than the inner gradient layer, resulting in a unidirectional water transfer from the inner gradient layer to the intermediate gradient layer.

[0079] Therefore, according to some embodiments of this disclosure, the hydrophilicity of the exemplary arc-resistant fabric 202 gradually increases from the inner gradient layer to the outer gradient layer, resulting in unidirectional moisture transfer from the inner gradient layer to the middle gradient layer and subsequently to the outer gradient layer. At least in combination Figure 3 Additional details are described.

[0080] Now for reference Figure 3 An exemplary block diagram 300 is provided, illustrating exemplary hydrogen bonds associated with an exemplary gradient layer of an exemplary arc-resistant garment fabric according to some embodiments of the present disclosure.

[0081] Similar to the above, at least combined Figure 1A , Figure 1B and Figure 2 The described example, Figure 3 The exemplary arc flash protection fabric shown in the image comprises three gradient layers: an outer gradient layer 301, a middle gradient layer 303, and an inner gradient layer 305.

[0082] In some implementations, of the three gradient layers, the inner gradient layer 305 is located closest to the wearer's skin. Figure 3 In the example shown, water molecules 307 (e.g., from sweat or moisture released from the wearer's skin) are in contact with the inner gradient layer 305. Because the intermediate gradient layer 303 is more hydrophilic than the inner gradient layer 305, the water molecules 307 are absorbed and diffuse from the inner gradient layer 305 to the intermediate gradient layer 303 due to hydrogen bonding, as indicated by arrow 309.

[0083] Similar to those described above, water molecule 307 contains negatively charged oxygen (O), and intermediate gradient layer 303 contains hydrophilic functional groups (-XH) from the material forming intermediate gradient layer 303 (e.g., a second material) (e.g., but not limited to -OH, -NH2, and -COOH, such as...). Figure 3(As shown). In such an example, hydrogen bonds are formed between the oxygen (O) in water molecule 307 and the hydrophilic functional groups (-XH) of the intermediate gradient layer 303, causing the intermediate gradient layer 303 to absorb water molecule 307 from the inner gradient layer 305.

[0084] In some embodiments, the enhanced moisture absorption capacity of the intermediate gradient layer 303 (compared to the inner gradient layer 305) creates a pressure difference and capillary effect between the intermediate gradient layer 303 and the inner gradient layer 305, providing technical benefits and advantages, such as, but not limited to, increasing the rate at which water molecules 307 are absorbed from the inner gradient layer 305 to the intermediate gradient layer 303 without allowing water molecules 307 to diffuse within the inner gradient layer 305. Because there are more hydrogen bonds in the intermediate gradient layer 303 (compared to the inner gradient layer 305), water molecules 307 do not return from the intermediate gradient layer 303 to the inner gradient layer 305, thereby keeping the surface of the inner gradient layer 305 (which may come into contact with the wearer's skin) dry.

[0085] Similarly, because the outer gradient layer 301 (which can be exposed to the external environment) is more hydrophilic than the intermediate gradient layer 303, water molecules 307 are absorbed and diffuse from the intermediate gradient layer 303 to the outer gradient layer 301 due to hydrogen bonding, as shown by arrow 309.

[0086] In some embodiments, the enhanced moisture absorption capacity of the outer gradient layer 301 (compared to the intermediate gradient layer 303) creates a pressure difference and capillary effect between the outer gradient layer 301 and the intermediate gradient layer 303, providing technical benefits and advantages, such as, but not limited to, increasing the absorption rate of water molecules 307 from the intermediate gradient layer 303 to the outer gradient layer 301 without allowing water molecules 307 to diffuse within the intermediate gradient layer 303. Because there are more hydrogen bonds in the outer gradient layer 301 (compared to the intermediate gradient layer 303), water molecules 307 do not return from the outer gradient layer 301 to the intermediate gradient layer 303, thereby improving moisture ventilation to the external environment.

[0087] In some embodiments, after a predetermined amount of wearing time (e.g., but not limited to four hours), inorganic salts (e.g., but not limited to sodium chloride (NaCl), lithium chloride (LiCl), etc.) are sprayed onto the inner gradient layer 305 (e.g., the inner surface of the inner gradient layer 305 in contact with the wearer's skin) to further enhance unidirectional moisture transfer from the inner gradient layer 305 to the outer gradient layer 301 as indicated by arrow 309.

[0088] Now for reference Figure 4A and Figure 4B An exemplary view is shown associated with an exemplary arc-resistant clothing fabric according to some embodiments of the present disclosure.

[0089] In particular, Figure 4A An exemplary exploded view 400A is shown of an exemplary arc-resistant fabric 402 according to some embodiments of the present disclosure. Figure 4B Some embodiments according to this disclosure are shown. Figure 4A An exemplary enlarged view 400B of the exemplary arc-resistant fabric 402 shown in the figure.

[0090] Similar to the above combination Figure 1A , Figure 1B , Figure 2 and Figure 3 The exemplary arc-proof clothing fabric described herein, Figure 4A The exemplary arc flash protection fabric 402 shown includes an outer gradient layer 404, a middle gradient layer 406, and an inner gradient layer 408.

[0091] In some embodiments, the outer gradient layer 404 corresponds to the outer layer of the exemplary arc-resistant fabric 402. Figure 4A In the illustrated example, the outer gradient layer 404 of the exemplary arc flash protection fabric 402 includes an outer surface 410 exposed to the external environment. In some embodiments, the outer gradient layer 404 includes and / or is formed of a plurality of first yarns interwoven with and / or formed therefrom, similar to the above-described combination. Figure 1A , Figure 1B , Figure 2 and Figure 3 Various examples described.

[0092] In some embodiments, the intermediate gradient layer 406 corresponds to the intermediate base layer of the exemplary arc flash fabric 402. In some embodiments, the intermediate gradient layer 406 comprises multiple second yarns, similar to those described above. Figure 1A , Figure 1B , Figure 2 and Figure 3 Various examples described.

[0093] In some embodiments, the inner gradient layer 408 corresponds to the inner layer of the exemplary arc flash fabric 402 that can come into contact with the wearer's skin. In some embodiments, the inner gradient layer 408 comprises a plurality of second yarns and a plurality of fourth yarns, similar to those described above. Figure 1A , Figure 1B , Figure 2 and Figure 3 Various examples described.

[0094] In some embodiments, an intermediate gradient layer 406 is located between an inner gradient layer 408 and an outer gradient layer 404. For example, both the intermediate gradient layer 406 and the inner gradient layer 408 contain or share a plurality of second yarns. In such instances, the plurality of second yarns serve as connecting yarns to connect the intermediate gradient layer 406 and the inner gradient layer 408. Alternatively or additionally, the outer gradient layer 404 can be attached to the intermediate gradient layer 406 by an exemplary fabric manufacturing method, such as, but not limited to, heat setting, the additional details of which are described herein.

[0095] Similar to the above combination Figure 1A , Figure 1B , Figure 2 and Figure 3 In the described example, multiple first yarns comprise a first material, multiple second yarns comprise a second material, multiple third yarns comprise a third material, and multiple fourth yarns comprise a fourth material. In some embodiments, the first, second, and third materials each comprise a blend of hydrophilic yarns and hydrophobic fibers, while the fourth material comprises only hydrophobic fibers and no hydrophilic yarns. In some embodiments, the hydrogen bond percentage of the first and third materials is in an exemplary range of 30% to 60%, while the hydrogen bond percentage of the second material is in an exemplary range of 20% to 50%. In some embodiments, the hydrogen bond percentage of the second material is lower than that of the first and third materials. Therefore, the hydrophilicity of the exemplary arc flash fabric 402 gradually increases from the inner gradient layer 408 to the outer gradient layer 404 to allow moisture and air to pass through the exemplary arc flash fabric 402 as indicated by arrow 412, providing technical advantages and benefits, such as, but not limited to, improved breathability and comfort of the exemplary arc flash fabric 402.

[0096] refer to Figure 4B This disclosure provides some implementation schemes based on this disclosure. Figure 4A An exemplary enlarged view of an exemplary arc-protective clothing fabric 402 is shown. Specifically, Figure 4B Parts of the intermediate gradient layer 406 and inner gradient layer 408 according to some embodiments of the present disclosure are shown.

[0097] exist Figure 4B In the illustrated example, the inner gradient layer 408 includes a plurality of ribbed portions, such as, but not limited to, ribbed portion 408A. In some embodiments, each of the plurality of ribbed portions corresponds to a raised, circular portion between two portions of the intermediate gradient layer 406 and protrudes toward the wearer's skin away from the intermediate gradient layer 406. For example, ribbed portion 408A is located between a first intermediate gradient layer portion 406A and a second intermediate gradient layer portion 406B of the intermediate gradient layer 406. Figure 4BIn the example shown, the first intermediate gradient layer portion 406A and the second intermediate gradient layer portion 406B are parallel to each other.

[0098] In some embodiments, the multiple rib portions of the inner gradient layer 408 can be formed by an exemplary heat-setting method. For example, as described above, the third material (which may form multiple third yarns of the outer gradient layer 404) may comprise an elastic fiber material (e.g., but not limited to spandex). During the exemplary heat-setting process, the exemplary arc-resistant fabric 402 may be exposed to an environment where its temperature rises to 190°C, causing the third material (and the multiple third yarns) to shrink. This is because the inner gradient layer 408 includes multiple fourth yarns parallel to the multiple third yarns (e.g., ...). Figure 2 As shown), the shrinkage of the elastic fiber material causes the inner gradient layer 408 to arch and form multiple ribbed sections (e.g., as shown). Figure 4A and Figure 4B The ribbed portion 408A is shown, and the outer gradient layer 404 is fixed to the middle gradient layer 406.

[0099] In some implementations, multiple threaded portions of the inner gradient layer 408 (such as threaded portion 408A) provide various technical benefits and advantages. For example, as Figure 4A and Figure 4B As shown, the multiple ribbed portions of the inner gradient layer 408 form multiple gaps between the inner gradient layer 408 and the outer gradient layer 404, further preventing moisture from returning from the outer gradient layer 404 to the inner gradient layer 408. Furthermore, the multiple gaps formed by the multiple ribbed portions provide a protective buffer between the wearer's skin and the external environment, further isolating the wearer from dangers caused by arc flash events.

[0100] refer to Figure 5 An exemplary exploded view 500 of an exemplary arc-resistant clothing fabric 501 according to some embodiments of the present disclosure is provided.

[0101] In some embodiments, the exemplary arc flash protection fabric 501 includes an outer gradient layer 503, a middle gradient layer 505, and an inner gradient layer 507, similar to the combination described above. Figure 4A and Figure 4B The exemplary arc-proof clothing fabric 402 described includes an outer gradient layer 404, a middle gradient layer 406, and an inner gradient layer 408.

[0102] In some embodiments, the arc-proof fabric 501 includes a membrane layer 511. In some embodiments, the membrane layer 511 is attached to the outer surface of the outer gradient layer 503.

[0103] In some embodiments, the membrane layer 511 may contain a waterproof material, such as, but not limited to, polyurethane (PU), thermoplastic polyurethane (TPU), etc. In some embodiments, the membrane layer 511 provides technical benefits and advantages, such as, but not limited to, preventing external moisture from the environment from entering the outer gradient layer 503 (e.g., as shown by arrow 515), while allowing internal moisture (e.g., from the wearer) to be released into the environment (e.g., as shown by arrow 517).

[0104] In some embodiments, the arc-resistant fabric 501 includes an abrasion-resistant protective layer 509. In some embodiments, the abrasion-resistant protective layer 509 is attached to the outer surface 513 of the membrane layer 511.

[0105] In some embodiments, the abrasion-resistant protective layer 509 may comprise an abrasion-resistant material, such as, but not limited to, nylon, aramid, etc. In some embodiments, the abrasion-resistant protective layer 509 provides technical benefits and advantages, such as, but not limited to, protecting the film layer 511 (and the exemplary arc-resistant fabric 501) from abrasion and tearing.

[0106] It should be understood that this disclosure is not limited to the specific embodiments disclosed, and that modifications and other embodiments are intended to be included within the scope of the appended claims. Although specific terms are used herein, they are used in a general and descriptive sense only, and not for limiting purposes, unless otherwise described.

Claims

1. An arc-proof clothing fabric, comprising: An outer gradient layer comprising multiple first yarns interwoven with multiple third yarns; An intermediate gradient layer comprising a plurality of second yarns; and An inner gradient layer comprising the plurality of second yarns interwoven with a plurality of fourth yarns. The plurality of fourth yarns are more hydrophobic than the plurality of first yarns, the plurality of second yarns, and the plurality of third yarns.

2. The arc-resistant clothing fabric according to claim 1, wherein the percentage of first hydrogen bonds in the first material associated with the plurality of first yarns is higher than the percentage of second hydrogen bonds in the second material associated with the plurality of second yarns.

3. The arc-resistant clothing fabric according to claim 1, wherein the percentage of third hydrogen bonds in the third material associated with the plurality of third yarns is higher than the percentage of second hydrogen bonds in the second material associated with the plurality of second yarns.

4. The arc-proof clothing fabric according to claim 1, wherein the plurality of third yarns comprise an elastic fiber material.

5. The arc-proof clothing fabric according to claim 1, wherein the plurality of second yarns are more hydrophobic than the plurality of first yarns and the plurality of third yarns.

6. The arc-proof clothing fabric according to claim 1, wherein the plurality of first yarns and the plurality of third yarns form a plain weave.

7. The arc-proof clothing fabric according to claim 1, wherein the plurality of second yarns and the plurality of fourth yarns form a plain weave.

8. The arc-proof clothing fabric according to claim 1, wherein the inner gradient layer comprises a plurality of ribbed portions, the ribbed portions forming a plurality of gaps between the inner gradient layer and the outer gradient layer.

9. The arc-proof clothing fabric according to claim 1, further comprising: A film layer attached to the outer surface of the outer gradient layer.

10. The arc-proof clothing fabric according to claim 9, further comprising: A wear-resistant protective layer is attached to the outer surface of the film.

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