CLOTHING ITEM TO PROTECT A DAMAGED AREA OF SKIN

FR3157073B1Active Publication Date: 2026-07-31DESCLAUX BARBARA
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Patent Information

Authority / Receiving Office
FR · FR
Patent Type
Patents
Current Assignee / Owner
DESCLAUX BARBARA
Filing Date
2023-12-26
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Current textile materials, particularly synthetic fibers, fail to effectively manage body moisture, leading to bacterial proliferation and compromised skin integrity in individuals with sensitive skin or eczema.

Method used

A clothing article made from composite yarns with an elastic central core coated with a sheath of cellulose fibers, which absorbs excess moisture and reduces bacterial proliferation, while avoiding direct contact with the skin.

Benefits of technology

The clothing article provides a compressive, moisture-absorbing, and antibacterial environment that promotes skin health and comfort, reducing irritation and supporting the natural regeneration of the skin.

✦ Generated by Eureka AI based on patent content.
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Abstract

CLOTHING ITEM FOR PROTECTING A DAMAGED SKIN AREA The invention relates to a clothing item (1) intended to be worn by a subject (30) in contact with the skin, comprising at least one composite yarn or a first set of composite yarns; said composite yarn comprising an elastic central core covered with a sheath composed of cellulosic fibers. Figure for the abstract: Fig. 1
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Description

Title of the invention: CLOTHING ARTICLE FOR PROTECTING AN INJURED AREA OF SKIN Field of invention

[0001] The invention relates to an article of clothing, in particular intended to cover an area of ​​damaged skin, preferably of the atopic type such as atopic dermatitis. State of the art

[0002] Eczema, a common and often chronic skin condition, affects millions of people worldwide. Symptoms such as itching, redness and skin irritation can significantly impair the quality of life of those affected.

[0003] Currently, many skin care products require the user to wait patiently for the applied cream to dry, thus limiting their ability to dress or handle objects during this period. This time constraint can represent a significant obstacle in the daily routine of users, resulting in a loss of time and efficiency, as well as a potential decrease in user satisfaction.

[0004] In today's textile industry, the widespread use of unsuitable materials often compromises the natural hygiene of the skin. Among these materials, synthetic fibers occupy a prominent place, frequently integrated into sportswear for their ability to dry quickly. Unfortunately, these synthetic fibers, whether used pure or mixed with other materials, also dominate the composition of ready-to-wear clothing. This predominance poses a major challenge for subjects with sensitive skin, especially those suffering from eczema.

[0005] One of the main concerns related to the use of synthetic fibers is their propensity to irritate sensitive skin. Indeed, when a person sweats, these fibers promote bacterial proliferation due to the inability to absorb moisture emitted by the body. This accumulation of moisture on the surface of the skin creates an environment conducive to maceration, thus compromising skin comfort and hygiene. In addition, synthetic fibers, as inert elements, do not contribute favorably to the environment necessary for the natural regeneration of the skin.

[0006] Textile materials commonly used in the manufacture of clothing, particularly synthetic fibers, do not adequately meet the needs of subjects with sensitive skin, particularly those suffering from eczema. The main An identified gap is the inability of these synthetic fibers to effectively manage body moisture, thus promoting bacterial proliferation and compromising skin integrity. It becomes imperative to develop an innovative solution that mitigates these problems inherent to synthetic fibers, thus providing a textile garment that actively supports the health and well-being of subjects suffering from skin sensitivities, while promoting an environment conducive to epidermal regeneration.

[0007] The invention therefore aims to provide an article of clothing intended to be worn on the surface of the skin of a subject overcoming the limitations of the prior art. Summary of the invention

[0008] According to a first aspect, the invention relates to a clothing item intended to be worn by a subject in contact with the skin comprising at least one composite yarn or a first group of composite yarns; said composite yarn comprising an elastic central core coated with a sheath composed at least of cellulose fibers.

[0009] One advantage is to provide a compressive clothing article in which the elastic threads cannot be in contact with the subject.

[0010] In one embodiment, the sheath of the first composite yarn or group of yarns completely covers the elastic central core.

[0011] In one embodiment, cellulosic fibers of the sheath comprise a viscose or a viscose derivative.

[0012] In one embodiment, the first composite yarn is a covered yarn formed from the elastic central core and at least one first covering yarn, made of cellulosic fiber material, covered around the elastic central core and forming the sheath.

[0013] In one embodiment, the first composite yarn further comprises at least one second covering yarn wrapped around the central core.

[0014] In one embodiment, the second covering yarn is a silk yarn.

[0015] In one embodiment, the elastic central core of the first composite yarn or of the first group of composite yarns includes elastane yarn.

[0016] In one embodiment, said article is obtained by knitting the first composite yarn or the first group of yarns with a second silk yarn or a second group of silk yarns.

[0017] In one embodiment, the first composite yarn and the second yarn have, relative to each other, a position defined such that only the second yarn or the second group of yarns is visible on a first face of the article.

[0018] In one embodiment, the first face of the article is the inner face of the article intended to be in contact with the skin of a subject when the clothing article is worn by said subject.

[0019] In one embodiment, said article is composed of between 20% and 40% of the first thread or the first group of threads and between 60% and 80% of the second thread or the second group of threads.

[0020] In one embodiment, said article is obtained by knitting the first yarn or the first group of yarns with a second yarn or a second group of yarns.

[0021] In one embodiment, said article is designed to form a compression garment to be worn by a subject.

[0022] In one embodiment, said article of clothing does not include a seam. In one embodiment, said article does not include a button or zipper type closure.

[0023] According to a second aspect, the invention relates to a method for therapeutic treatment of an injured area of ​​the skin of a subject comprising the following steps: providing an article according to the invention and placing the article on the subject so as to completely cover the injured area.

[0024] According to one embodiment, the method further comprises wearing said posed article for at least a predetermined duration.

[0025] According to an embodiment, in which the predetermined duration is at least 1 hour

[0026] According to an embodiment, in which the predetermined duration is at least 6 hours or 8 a.m.

[0027] According to one embodiment, the method further comprises a step of cleaning the damaged area before the laying step.

[0028] According to one embodiment, the method further comprises applying a medicated cream or a medicated preparation to said injured area of ​​the subject.

[0029] According to one embodiment, said medicated cream comprises a cream for the treatment of atopic dermatitis or eczema such as a cream comprising a corticosteroid, also called corticosteroid cream. Brief descriptions of the figures

[0030] [Fig-1]: [Fig.l] represents a schematic representation of a composite wire according to one embodiment of the invention comprising two covering threads wound around an elastic central core in a disjointed manner.

[0031] [Fig.2]: [Fig.2] represents a schematic representation of a composite yarn according to an embodiment of the invention comprising a single covering yarn wound around an elastic central core in a disjointed manner.

[0032] [Fig.3]: [Fig.3] represents an example of a two-dimensional knitting structure of an article according to an embodiment of the invention in which a second silk yarn is used in knitting and the composite yarn is used as a weft yarn for every other row of the knitting.

[0033] [Fig.4]: [Fig.4] represents a schematic sectional view of an article of clothing according to an embodiment of the invention in which said article is designed such that at least one face is designed with a layer of second wire.

[0034] [Fig.5]: [Fig.5] represents a schematic view of a subject wearing an article of clothing according to an embodiment of the invention in which said article is an elbow protector.

[0035] [Fig.6]: [Fig.6] represents a flowchart representing the steps of a method according to an embodiment of the invention. Description of the invention

[0036] The aforementioned technical problem is solved in accordance with the invention by means of a composite yarn 10 comprising an elastic central core 11 coated with a sheath composed of cellulose fibers. Preferably, cellulose fibers are understood to mean plastic materials of plant origin obtained by subjecting the cellulose to chemical and physical treatments aimed at dissolving and shaping it. The elastic central core 11 advantageously provides the clothing item 1 with elastic properties, thus making it possible to design compressive garments intended to stick to the skin of the subject 30.

[0037] The sheath composed of cellulose fibers makes it possible to avoid contact between the elastic central core 11 and the skin of the subject 30 and also allows rapid absorption of excess moisture, reducing bacterial proliferation on the injured areas.

[0038] By “item of clothing” is meant all or part of a garment intended to be worn by a subject 30.

[0039] The clothing item 1 may comprise all or part of an item 1 such as an undergarment, a hat, a sock, an undershirt, a cuff, an elbow protector, a leg warmer, tights, a balaclava, pajamas, gloves, mittens.

[0040] [Fig. 5] represents a subject 30 wearing an item of clothing 1 of the elbow protector type, particularly advantageous if the subject 30 has an injured area at the elbow or the elbow crease.

[0041] In one embodiment, the clothing item 1 is all or part of a compression garment.

[0042] By “compression garment” is meant an elastic and extensible garment in all directions which locally exerts continuous pressure on the surface of the skin of the subject 30 wearing said garment.

[0043] The compressive aspect is advantageously provided by the elastic central core 11 of the composite wire 10. Composite yarn

[0044] An example of a composite yarn 10 intended to constitute at least a part of a clothing item 1 in accordance with the invention is described below with reference to FIGS. 1 and 2.

[0045] In these examples, the composite yarn 10 is a covered yarn. By "covered yarn" is meant a yarn formed by the regular helical winding of one or more covering yarns 12, 13 or around another yarn (the central core), preferably by covering it completely, that is to say that the windings are present over the entire length of the central core or partially, that is to say that the windings are present over a portion of the length of the central core. In one embodiment, the successive windings of the covering yarn around the core are then contiguous. The contiguous windings then cover the entire surface of the central core over all or part of the length of the yarn by contact between two successive turns. In another embodiment, the successive windings are said to be “disjoint” when the successive turns are not in contact with each other, revealing the central core.

[0046] The composite wire 10 is a wire composed of at least two different materials. The composite wire 10 comprises an elastic central core 11 and at least one covering wire 12, 13 forming the sheath.

[0047] In [Fig.l], the composite yarn 10 comprises 2 covering yarns 12, 13 wound in opposite helices, in accordance with a double wrapping technique. In [Fig.2], a variant of a composite yarn 10 comprising a single covering yarn 12 is shown, in accordance with a single wrapping technique.

[0048] The covering thread(s) 12, 13 are wrapped around the elastic central core 11 by helically winding around the elastic central core 11. Other variants of the wrapping technique not shown, such as wrapping by intermingling, may be envisaged.

[0049] For reasons of clarity, figures 1 and 2 represent the covering wire(s) 12, 13 covering the elastic central core 11 with “disjoint” turns: the successive windings of the covering wire(s) 12, 13 around the elastic central core 11 are disjoint and are not in contact with each other, revealing the elastic central core 11.

[0050] In a preferred embodiment, the covering thread(s) 12, 13 completely cover the elastic central core 11 and the successive windings of the covering thread(s) 12, 13 around the elastic central core 11 are contiguous. Each turn is in contact with the previous turn and the next turn.

[0051] An advantage of a mode where the cover threads 12, 13 completely cover the elastic central core 11 is to guarantee that the elastic central core 11 will not be in contact with the subject's skin.

[0052] The thread(s) constituting the elastic central core 11 may be made of elastane, or any other material having similar mechanical properties.

[0053] The cover thread(s) 12, 13 are preferably composed of cellular fibers losiques.

[0054] Preferably, the cover thread(s) 12, 13 are composed of viscose or a viscose derivative. For example, the cover thread(s) 12, 13 are composed of Lyocell. Lyocell is a viscose produced from wood pulp, in particular eucalyptus. Viscose advantageously allows effective absorption and rapid drying.

[0055] The cover thread(s) 12, 13 may also be composed of any other fiber or material capable of absorbing moisture.

[0056] In one embodiment, the cover yarn(s) 12, 13 comprise a mixture of cellulose fibers with an animal fiber. The animal fiber may comprise chitin. The chitin may be extracted from crab shell. It may be reduced to powder form and then spun by a process similar to the process for manufacturing viscose and then mixed with the cellulose fibers in a variable proportion (from 1% m to 99% m) to form the cover yarn.

[0057] Such a covering fiber comprising a mixture of chitin fibers and cellulose fibers (such as lyocell) is particularly advantageous in that it has a high moisture absorption capacity and is hypoallergenic. The covering of the elastic central core 11 with a sheath of cellulose fiber, in particular lyocell, advantageously allows good moisture absorption, such a sheath allows good mechanical resistance of the clothing item 1.

[0058] In particular, the combination of a central core 11 made of elastane and a sheath made of lyocell-type cellulose fibers has demonstrated good elasticity properties making it possible to produce compressive clothing items on the one hand, good moisture absorption and a capacity to dry quickly, in particular superior to cotton and silk, providing a clothing item with good antibacterial properties, as well as low abrasion with the skin. These advantages advantageously allow better comfort when said clothing item is worn on an injured area, in particular an area of ​​the skin subject to atopic dermatitis (or eczema).

[0059] In an embodiment where several cover threads 12, 13 are wound around the elastic central core 11, one of the cover threads may be made of a silk protein fiber thread (called “silk thread” in the remainder of the description).

[0060] Preferably, the covering yarns comprise a first covering yarn 12 made of cellulosic fibers and a second covering yarn 13 made of silk.

[0061] Silk provides the article of clothing 1 with soft, non-slip texture properties, unlike synthetic fibers. This advantageously reduces the abrasive aspect of the article of clothing 1 against the injured surface of the subject's skin. The use of silk is advantageous for its lubricating (anti-abrasive), thermoregulatory (to regulate humidity in contact with the skin) and lipophobic properties. (to avoid absorbing cream applied to the subject's skin). Clothing item

[0062] In one embodiment, the clothing item 1 comprises at least one portion made from the composite yarn 10 as described above.

[0063] In one embodiment, said portion is made by knitting the composite yarn 10. Said portion may be entirely made from the composite yarn 10.

[0064] In one embodiment, said portion of the clothing item 1 is made from a composite yarn 10 or a group of composite yarns 10 as described above and from a second yarn or a second group of yarns. Preferably, the second yarn 20 is a silk yarn.

[0065] The use of silk is advantageous for its biocompatibility, lubricating (anti-abrasive), thermoregulating (to reduce humidity in contact with the skin) and lipophobic (to avoid absorbing a cream applied to the subject's skin) properties.

[0066] In an example illustrated in [Fig. 3], the clothing article portion 1 is made by knitting the second yarn 20. The weft yarn, which is inserted into the knitting made with the second yarn 20, is constituted by a composite yarn 10 as described above. Preferably, the weft yarn is inserted into the knitting formed by the second yarn 20 without entering the stitch of said knitting.

[0067] In this case, a weft thread is provided for every other row of the knit. This example is not limiting and a weft thread may be provided for each row or for every third or fourth row.

[0068] The covered composite yarn 10 shown in [Fig.3], for simplicity of representation, has been shown with a single, separate cover yarn 12 wound around the elastic central core 11, but any composite yarn 10 described above may be considered, for example a covered yarn with two cover yarns and / or joined turns.

[0069] Finally, still for the sake of simplicity of representation, a 2D knitting has been represented in [Fig.3], but it is understood that the portion of clothing item 1 can comprise any type of three-dimensional knitting.

[0070] In one embodiment, the clothing article portion 1 comprises between 60% and 80% of the second yarn 20 or group of second yarns 20 such as silk yarn and comprises between 20% and 40% of composite yarn 10.

[0071] The percentages are expressed in wire distance in said article 1.

[0072] Preferably, the clothing item does not include seams or closure means such as buttons or zippers. Preferably, the thickness of the clothing item is constant along the length and width of said item. By constant, it is ideally meant that the item includes a constant number of stitches in thickness over the entire surface of the item. Vanishing

[0073] In one embodiment, the portion of clothing item 1 comprises a plating on one of these faces, preferably the face intended to be in contact with the subject's skin.

[0074] Vanishing is a knitting method known to those skilled in the art in which two different yarns are knitted together in such a way that one covers the other. In one embodiment, the composite yarn 10 and the second yarn 20 are knitted in such a way that the second yarn 20 covers the first composite yarn 10 on the surface of the clothing item 1.

[0075] In one embodiment, the composite yarn 10 is used on one side with the needles in the front bed which positions it at the front of the knit and the second yarn such as a silk yarn is knitted with the back bed, so the yarns are brought back to the back side of the knit or vice versa. In one embodiment, the composite yarn is used in rib, that is to say it is knitted together with the second yarn in a partial manner, that is to say every other stitch, every third stitch, or less.

[0076] Generally, as illustrated in [Fig.4], the portion comprises a first face 21 as described above and a second face 22 made so that the skin of the subject in contact with the second face 22 is in contact only with the second thread 20 or the second group of threads.

[0077] An advantage, when the second thread is a silk thread, is to improve the comfort of the subject at the level of the injured area, in particular when the injured area is very dry eczema, while retaining the moisture absorption and elasticity properties of the composite thread 10.

[0078] Another advantage is to allow the application of a medicated cream for the treatment of the injured area and the placement of the clothing item 1 on said area. Indeed, the silk fibers, thanks to their lipophobic properties, will have reduced absorption of the cream, in particular in comparison with fibers such as lyocell or cellulosic fibers.

[0079] Other knitting or design techniques may be envisaged so as to obtain a clothing item 1 comprising a face composed of the second yarn.

[0080] In one embodiment, the article of clothing 1 is designed to be reversible, for example so that when turned inside out, the first face 21 is then in contact with the skin of the subject. An advantage is to have a single article of clothing 1 to use either to have its surface more lubricating, thermoregulating and lipophobic (second face 22), or to have a more absorbent surface (first face 21) in contact with the skin of the subject wearing the article of clothing 1. The improvement in the absorbency of the first face 21 is particularly advantageous when the subject sweats, for example during physical exertion, or when the injured area has itchy or itchy discharge. exudates.

[0081] In one embodiment, the article of clothing 1 or said portion of article of clothing 1 is made from a single seamless textile piece. The seamless textile advantageously makes it possible to reduce discomfort due to seams on the skin. Therapeutic method

[0082] Another aspect of the invention consists of a therapeutic method 100 for treating an injured area.

[0083] A damaged area may be understood as an area of ​​the skin surface having at least one lesion. Preferably, a lesion comprises atopic dermatitis. In one embodiment, said lesion may comprise a burn of the skin and / or any change produced on the skin by a disease or an accident.

[0084] The therapeutic method comprises the use 110 of a therapeutic article 1 according to the invention to cover the injured area. By "injured area" is meant an area of ​​the surface of the subject's skin comprising at least one atopic lesion as previously described.

[0085] In one embodiment, the method comprises a step of cleaning (110) the injured area. The cleaning can be carried out with any type of cleaning product suitable for cleaning or rinsing the injured area such as water, a disinfectant product, shower oil. Preferably, the cleaning step is carried out without soap or a product resulting from saponification. Preferably, the method comprises the application 120 of a cream or a medicated solution to the injured area of ​​the skin before covering said area with the clothing item 1. The cream or the medicated solution preferably comprises a moisturizing cream, a cream comprising a corticosteroid, or any medication allowing the treatment of dermatitis such as atopic dermatitis.

[0086] The clothing item 1 is then put on 130 so as to be worn by the subject in such a way that said item 1 (preferably its second face 22) covers said injured area, preferably in full.

[0087] Preferably, the clothing item 1 is then worn by the subject for at least a predetermined duration.

[0088] The predetermined duration may be at least 1 hour. An advantage is that it allows the application of the drug to the epidermis of the subject.

[0089] Preferably, the clothing item 1 is worn by the subject for a minimum duration of 6 hours or 8 hours. The advantage is to make it possible to obtain the beneficial effects of compression and the non-abrasive surface on the injured area as well as the antibacterial properties of the item 1 according to the invention. General benefits

[0090] The article 1 according to the invention advantageously allows the injured area of ​​the subject to be compressed. The compression initially provides a feeling of relief by providing a constant sensation of the body's limit as well as a sensation of pressure. In addition, such compression reduces the damage caused by the subject's scratching of the injured area. Wearing a compressive article 1 thus allows the reduction of the signs (pain, itching, pruritus, erythema) of inflammation.

[0091] Another advantage is the non-contact between the skin and synthetic fibers, reducing abrasion of the injured areas with the clothing. In addition, the clothing article 1 and the silk face advantageously allow the application of cream to the injured area which will be covered thanks to the low absorption property of silk. An advantage is to promote contact between the cream and the injured area of ​​the subject by reducing the risk of absorption of the cream by the clothing. In addition, such an article 1 makes it possible to reduce the risk of removal of the cream by contact of the injured area by contact with another part of the body or an object. This aspect is particularly advantageous when the clothing article 1 is a glove for covering an injured area on the hand. The subject can then move or handle objects after applying a cream without fear of the cream being deposited on the objects handled.

[0092] The article of clothing 1 according to the invention thus also makes it possible to overcome the disadvantages of applying a cream (drying time, time constraints) by proposing a device allowing a more efficient application of cream and adapted to the constraints of daily life.

[0093] Finally, the article of clothing 1 advantageously makes it possible to combine the aspects of non-abrasive surface, elasticity and absorption and evacuation of moisture at the surface of the skin.

Claims

Claims

1. Clothing article (1) intended to be worn by a subject (30) in contact with the skin comprising at least one composite yarn (10) or a first group of composite yarns (10); said composite yarn (10) comprising an elastic central core (11) coated with a sheath composed at least of cellulose fibers.

2. Article (1) according to claim 1 wherein the sheath of the first composite yarn (10) or of the first group of yarns entirely covers the elastic central core (11).

3. An article (1) according to claim 1 or claim 2 wherein the cellulosic fibers of the sheath comprise a viscose or a viscose derivative.

4. Article (1) according to one of claims 1 to 3 in which the first composite yarn (10) is a covered yarn formed • From an elastic central core (11), and • from at least one first covering yarn (12), made of cellulosic fiber material, covered around the elastic central core (11) and forming the sheath.

5. Article (1) according to claim 4 wherein the first composite yarn (10) further comprises at least one second covering yarn (13) wrapped around the central core.

6. Article (1) according to claim 5, wherein the second covering yarn (13) is a silk yarn.

7. Article (1) according to one of claims 1 to 6, wherein the elastic central core (11) of the first composite yarn (10) or of the first group of composite yarns comprises an elastane yarn.

8. Article (1) according to one of claims 1 to 7, wherein said article (1) is obtained by knitting the first composite yarn (10) or the first group of yarns with a second silk yarn (20) or a second group of silk yarns (20).

9. Article (1) according to claim 8, characterized in that the first composite yarn (10) and the second yarn (20) have a defined position relative to each other, such that only the second yarn (20) or the second group of yarns is visible on a first face (22) of the article (1).

10. Article (1) according to claim 9 in which the first face (22) of the article (1) is the inner face of the article (1) intended to be in contact with the skin of a subject when the clothing article (1) is worn by said subject.