EP3436629A1

EP3436629A1 - Item with a compressive effect and method of manufacturing the said item

Info

Publication number: EP3436629A1
Application number: EP17720184.5A
Authority: EP
Inventors: Jérémy DUCREUX; Alain Cotte; Laurent DECHELETTE
Original assignee: Thuasne SA
Current assignee: Thuasne SA
Priority date: 2016-03-29
Filing date: 2017-03-29
Publication date: 2019-02-06
Anticipated expiration: 2037-03-29
Also published as: WO2017168095A1; EP3436629B1; FR3049619A1; FR3049619B1

Abstract

One subject of the present invention is an item with a compressive effect (1) comprising a fully knitted component (3) comprising at least a first knitted tubular element (4) and a second knitted tubular element (5), each one having an upper end (4a, 5a) and an open lower end (4b, 5b), the first tubular element (4) being joined to the second tubular element (5) at their lower ends (4b, 5b). Advantageously, the said at least first (4) and second (5) tubular elements each comprise a number of wales of stitches and, possibly of rows of stitches, per centimetre, that is greater than or equal to 8. Another subject of the invention is a method of manufacturing the said item with a compressive effect (1).

Description

ARTICLE WITH COMPRESSIVE EFFECT AND METHOD OF MANUFACTURING THE SAID ARTICLE

The present invention relates to the technical field of compressive effect articles, in particular for therapeutic use, comprising an integrally knitted piece comprising at least a first knitted tubular element and a second knitted tubular element, such as compression-effect gloves, seamlessly obtained. by knitting.

The present invention also relates to the technical field of methods for obtaining such articles.

Background of the invention

The articles with compressive effect, sock or mid-low, low, sticky or sleeve, are used to prevent or treat problems of venous circulation especially in the lower limb or higher, as well as pathologies related to dysfunctions of the lymphatic system and reduce edema. Venous disorders can have several origins, among which we find in particular: a stiffening of the venous wall, an alteration of the valves, an increase in the diameter of the veins, or a congenital malformation, such as for example an angioma.

The compressive effect articles comprising an integrally knitted piece comprising at least a first knitted tubular element and a second knitted tubular element, in particular the compression effect hand gloves, may be used in the context of the applications mentioned above but also in treatment of burn victims, and in particular to avoid the appearance of hypertrophic scars and retractile bridles, or to improve the appearance. The compressive effect articles can be used in the treatment of thermal, chemical or electrical burns, the fight against the functional or unsightly complications of scars (keloids, hypertrophic, bridles, ...) and the treatment of cutaneous graft areas.

The local pressure exerted on a limb by a compressive effect article is a function in particular of the force-elongation characteristics of said article.

The pressure exerted on a limb is calculated by the following Laplace law: P [Pa] = (T [N] X n / (L [m] X R [m]).

P represents the pressure, expressed in Pascals, exerted at a given point of the member considered, 1 mmHg is about 133 pascals. L is the width, expressed in meter, of the considered zone of the member and n represents the number of layers of the compressive effect article disposed on said zone.

T is the tension, expressed in Newtons, exerted by said article when it is threaded on the lower or upper limb.

R is the radius of curvature, expressed in meters, at the considered point of the lower or upper limb.

US 2006/0021390 relates to a seamless compressive effect hand glove obtained by knitting at least one elastic mesh yarn and at least one elastic weft yarn on a straight knitting machine in which the tubes corresponding to the fingers and palm are joined when knitting the glove. Modeling and / or transfer techniques and / or varying mesh size and / or thread tension are used to make the glove but it is not precisely described how these techniques are implemented. It is not described also mesh scheme.

EP 2,075,361 A1 discloses the manufacture of a knit compressive effect hand glove on a straight knitting machine comprising two needle beds in which two tubular elements are connected by knitting by stitching of the front needle bed on the needle bed rear (see fig.l, passage from line 1 to line 2). Each tubular element is knitted in jersey with one needle out of two or more in order to leave free needles on the back or front needle bed, which will receive the meshes of the front or back needle bed. In the example illustrated in FIG. 1, once all the stitches of the two adjacent tubular elements have been plotted on the needles of the back needle bed, the stitches of the second tubular element are transferred to the front needle bed and then the needle bed is moved (or ) of five needles so that five meshes of the first tubular element, carried on the back needle bed, are facing five of the stitches of the second tubular element all carried on the front needle bed. Then the five stitches of the second tubular element facing the five stitches of the first tubular element seem to be carried on the back needle bed to overlap five stitches of the first tubular element, which would allow the knitting connection of the first and second tubular elements.

The knitting connection between two tubular elements is thus performed by overlapping all the meshes of the first and second tubular elements arranged on the front and back needle beds so that the junction obtained would be thick and uncomfortable, particularly in this example in which link would be made by overlapping on five meshes. In addition, to obtain the forward stitches of the front needle bed on the needles of the back needle bed, the tubular elements must be knitted in an out-of-the-way fashion, that is to say, knitted every other needle, out of three or more, which generates tubular elements of large gauge, for example of the order of 6 columns of mesh per centimeter or 15 columns of mesh per inch (1 inch is 2.54 cm). The compressive hand glove obtained is therefore in a knit with "large" stitches, to the detriment of the precision of the desired compressive effect and the comfort of the wearer. In addition, the knitted fabric does not make it possible to manufacture gloves of small size in a precise manner, that is to say limited in circumference, for example intended for children.

There is therefore a need for a compressive effect article, particularly a compression glove, which is comfortable, aesthetic, seamless, and can be adapted to a wide variety of sizes.

Object and summary of the invention

The present invention overcomes the aforementioned problems in that it has as its object, according to a first aspect, a compressive effect article, in particular a compression effect glove, comprising an integrally knitted piece comprising at least a first knitted tubular element and a second tubular tubular member, each having an upper end and an open lower end, the first tubular member being joined to the second tubular member at their lower ends.

Advantageously, said at least first and second tubular elements each comprise a number of mesh columns, and possibly rows of stitches, per centimeter greater than or equal to 8.

The knitting method according to the invention selected, and described hereinafter with reference to a second aspect of the invention, makes it possible to knit tubular elements on all the needles of the first and second needle of a straight knitting machine, and not one needle out of two or more, as is necessary in the state of the art to join two tubular elements.

This arrangement contributes to obtaining a "fine" gauge for the knitted tubular elements, that is to say a number of columns of stitches, and possibly rows of stitches, per centimeter greater than or equal to 8, of preferably greater than or equal to 10. Still preferably, each of said first and second tubular elements have a number of columns of stitches, and possibly rows of stitches, per cm less than or equal to 15, more particularly less than or equal to 13.

Advantageously, said at least first and second tubular elements according to the invention are thin, aesthetic, comfortable while providing the desired compressive effect. The gauge is fine, it is also possible while maintaining the properties described below to obtain tubular elements of very varied sizes.

Advantageously, said integrally knitted part is knitted on a straight knitting machine.

The number of stitches per centimeter (or recalculated per inch) and / or the number of stitches per centimeter (or recalculated per inch) can be measured on the compressive article, at rest, according to NF EN 14971 April 2006 "Textiles - Knitted fabrics - Determination of number of stitches per unit length and unit area".

It is understood by "at rest" that the measurements made on the compressive effect article are performed without exerting tension on the latter which could lengthen it in one direction and thus reduce the number of columns or rows counted.

The compressive effect article according to the invention may be a hand glove or a hand mitten, or a finger-cover, possibly comprising, in the extension of the wrist, a sleeve covering all or part of the forearm and / or the arm; or a glove of foot arranged in a sock, a stocking, a knee-high, a hemi-adhesive, a pantyhose or a panty, or even a finger-cover; or a jersey comprising at least a sleeve portion and optionally at least a second sleeve portion; or in a combination of these.

In the present text, "glove with compressive effect" is understood to mean a glove of the hand or the foot.

The knitted piece according to the invention, and therefore at least the first tubular element and the second tubular element, can thus cover, according to the construction of the compression article, one or more zones of the body, chosen in particular from the or the following areas, independently of each other, alone or in combination: one or more finger (s) of the hand, at least in part the hand (back and palm), wrist, forearm and / or arm, one or more toes, foot, ankle, leg, thigh, waist, and torso. Preferably, when the compressive effect article is a hand glove or a hand mitten, the first and second tubular elements are intended to cover each at least partially a finger, in particular respectively the index and the middle finger, the fastening ( or junction) by knitting between the first and second tubular elements at their lower ends is found at the commissure between said fingers covered by the first and second tubular elements.

When the compressive effect article is a compression glove and also comprises third, fourth and fifth tubular elements and a main tubular element, the knitting interlockings between said tubular elements are found at the commissures between the fingers.

In one embodiment, the compression effect glove comprises a first knitted tubular element (in particular intended to cover at least part of the index finger or a first toe), a second tubular knitted element (especially intended to cover at least part of the middle finger or a second toe), and possibly a tubular main knitted element (in particular intended to cover at least partly the back and the palm of the hand or at least partly the foot), and / or a third element tubular knitted (in particular for covering the annular or a third toe), and / or a fourth knitted tubular element (in particular for covering the little finger or a fourth toe), and / or a fifth knitted tubular element (Especially intended to cover the thumb or a fifth toe, especially the little finger).

Each of said tubular knitted elements comprises an upper end, which may be open or closed, and an open lower end for the passage of the finger or the hand, or alternatively, a toe or foot. Preferably, the main tubular knitted element comprises an upper end and a lower end. The upper end of the main tubular element is in connection with the openings of the lower ends of the knitted tubular elements and is secured to them. The lower end of the main knitted tubular element is open to let the hand or foot.

Optionally, the compression effect glove comprises a portion of a wrist or tubular ankle knitted in the extension of the main knitted element.

This tubular portion knitted can be knitted along a side edge and / or comprises a yarn adhering to the knitted skin so as to be found on the inner face of the wrist or ankle portion (and therefore in order to come into contact with the skin at door). The skin-adhering yarn may be an elastic monofilament yarn, as defined hereinafter, in particular forming floats on the inner face of the wrist or ankle portion to improve adhesion.

Preferably, the integrally knitted piece comprises, in addition to first and second knitted tubular members, a knitted tubular main member, and / or a third knitted tubular member and / or a fourth knitted tubular member and / or a fifth knitted tubular member.

Preferably, when the compressive effect article is a hand mitten, the first tubular member (upper and lower ends open) is intended to cover at least part of the palm and the back of the hand, and the second tubular member is intended to cover at least part of the thumb (upper end closed or open).

The main tubular element is, in this case, in the extension of the first and second tubular knitted and bonded elements, and covers at least partly the back and the palm of the hand.

In general, the open end (s) of the knitted tubular element (s) can be closed during knitting, or in a conventional manner using a seam.

The upper end of a tubular element is closed during knitting, for example by starting with the knitting of the closed upper end, for example with the help of rib 1 * 1, then continuing by forming the tube of the tubular element by knitting on the front and back needle beds using knit stitches for example.

It is understood that the piece according to the invention is integrally knitted in that the tubular elements that it comprises are obtained by knitting and joined together by knitting, this arrangement does not exclude that finishing by sewing can be performed on said piece, such as for example the closure of an upper end of a tubular element.

Preferably, the integrally knitted piece, and therefore the first and second tubular elements, and / or the third and / or fourth and / or the fifth knitted tubular element (s) and / or the element main tubular, comprise a first wire mesh (preferably elastic) and a second wire mesh (preferably inelastic).

An elastic yarn is understood to mean a yarn having an elongation at break greater than or equal to 100%, preferably greater than or equal to 200%, and even more preferably greater than or equal to 300%. These values can be determined for example using the NF EN ISO 2062 standard of January 2010.

The titles (dtex) indicated in this text can be measured using the standard NF EN ISO 2060 of June 1995.

One understands by charged mesh, the disposition of a thread on a loop without this thread itself forming a loop.

In the present text, the term "yarn" denotes a yarn spun of fibers, a m ultiflamentary yarn, a gimped yarn, a monofilament yarn, or a combination thereof, in particular that can undergo a knitting step.

Preferably, the at least one elastic yarn (s) is / are one or monofilament yarn (s) elastic (s), possibly covered (s) with one or more thread (s) cover. The at least one monofilament yarn (s) is / are preferably elastane, that is to say based on polyurethane, for example such as those sold under the brand name Dorlastan®, Glospan®, Linel® or Lycra®. The elastic monofilament yarn (s) may also be made of latex, that is to say based on natural or synthetic gum, such as for example elastodiene, or in any other equivalent material known from the state of the art.

The at least one cover wire may be arranged around an elastic core wire by wrapping, twisting or braiding, or with the aid of a nozzle by a technique called "Air Jet". preferably by wrapping or by "jet air".

The at least one cover yarn (s) is / are preferably one or more multifilament yarn (s).

The at least one cover yarn (s) has a titer three times, preferably at least five times, less than the title of the elastic core yarn.

Preferably, the second (especially inelastic) mesh yarn and / or the cover yarn (s) is / are in one or more materials selected from the group consisting of: polyamide 6, polyamide 6- 6, polyamide 12, polyamide 4-6, polypropylene, polyethylene, polyester such as polyethylene terephthalate, cotton, viscose, silk, wool, polyacrylic, and a mixture thereof.

Preferably, the title of the first elastic mesh yarn is between 350 dtex and 1500 dtex, in particular between 800 dtex and 1500 dtex, in particular monofilament elastic core yarn with a titer of between 22 dtex and 1250 dtex.

Preferably, the one or more cover yarns have a titer of between 22 dtex and 220 dtex. Preferably, the first elastic mesh yarn comprises at least two cover wires.

Preferably, the title of the second mesh, in particular non-elastic, is between 22 dtex and 500 dtex. Preferably, the second wire may comprise several ends, including at least three ends.

Preferably, the compressive effect article according to the invention does not comprise an elasticized raster thread.

The phrase "fit for" or "arranged / sorted" in this text is equivalent to the following expressions considered independently of each other: "intended for", "configured for", "adapted to allow" and "adapted" to comply with ".

In a variant, the first tubular element comprises a first front portion and a first posterior portion, at its lower end, and the second tubular member comprises a second anterior portion and a second posterior portion at its lower end. The first anterior portion and the second anterior knitted portion overlap on at least one stitch, preferably at least three stitches, and said first and second anterior portions are not overlapped by the first and second posterior portions. Preferably, each tubular element in the compression article comprises a posterior face and an anterior face, said anterior portion being disposed on the anterior face and said posterior portion being disposed on the posterior face. Still preferably, the posterior portion is distinct from the anterior portion, and is disposed facing the anterior portion.

In a variant, the first knitted rear portion and the second knitted posterior portion overlap on at least one stitch, preferably at least three stitches, and said first and second posterior portions are not overlapped by the first and second anterior portions.

The process according to the invention described below advantageously makes it possible to put on hold meshes of a given needle bed without transferring them to the needles of the opposite needle bed, by means of transfer members, known in the technical field of knitting under the name of "sliders".

Each of said transfer members being coupled to a needle so that the mesh that supports a particular needle is put on hold on the transfer member of the needle disposed on the opposite needle.

In particular, this transfer member thus advantageously serves as a valve and allows a mesh to be put on hold for this mesh on a needle of a needle given to a needle of another needle or a needle of the same needle.

Advantageously, the joining or junction between the first tubular element and the second tubular element is made by overlapping two anterior portions between them on the one hand and by the overlap of two posterior portions on the other hand, the anterior portions being not overlapped by the posterior portions so that the knitting bonding comprises only a knitted layer which provides a thin bond and improving comfort.

The overlap can be performed on at least one stitch or two stitches or more. The overlap is preferably carried out on at least three stitches (in particular at most five stitches), which makes it possible to obtain solid attachment and a compressive effect article that is comfortable to wear.

It is understood by "the first / second knitted posterior / anterior portion and the second / first knitted posterior / posterior portion overlap" that said first / second posterior / anterior portion is indifferently above or below said second / first portion. posterior / anterior.

It is understood by said first and second anterior portions are not overlapped by the first and second posterior portions that the first and second posterior portions are not disposed above or below said first and second anterior portions.

Indeed, on the knitting machine during the manufacture of the article according to the invention, the first and second anterior portions are supported on a first needle bed and are superimposed (overlapped) on one another on this needle needle without being superimposed with the first and second posterior portions while the first and second posterior portions are supported on a second needle needle (different from the first needle bed) and are superimposed (overlapped) one on the other. other without being also superimposed with the first and second anterior portions (which remain on the first needle bed).

In a variant, the first tubular element and the second tubular element are joined according to a first knitted connection zone, and a second knitted connection zone, distinct from the first knitted connection zone, each of said first and second knitted zones consist of a knitted layer.

In a variant, said integrally knitted piece comprises a main knitted tubular element, configured to cover worn at least partly the palm and the back of the hand having an upper end, which upper end is joined to the first and second tubular members at their lower ends, said main tubular member comprising an open lower end.

In a variant, the upper end of the first tubular element, and possibly the upper end of the second tubular element, is / are closed (s) or open (s).

In a variant, said integrally knitted part comprises a number of columns of stitches, and possibly rows of stitches, per centimeter greater than or equal to 8, preferably greater than or equal to 10, more preferably less than or equal to 15, in particular less than or equal to 13.

In a variant, said at least first and second tubular elements, and possibly the main tubular element, comprise at least one first elastic mesh yarn and a second non-elastic mesh yarn.

It is understood in the sense of the present text by "wire mesh" that a wire forms meshes which may be loaded meshes and / or looped meshes.

Alternatively, said at least first tubular knitted element, and / or the second tubular member, and / or the main tubular member, comprises (d) (n) a first elastic mesh yarn forming meshes loaded onto a column of mesh on two or more. In a sub-variant, the first elastic mesh yarn forms at least two consecutive filled stitches, preferably at least three consecutive stitches.

It is understood by "two consecutive charged meshes" that the yarn forms two stitches loaded one after the other (in a row) without it being necessary for the yarn to form a looped stitch between said two meshes loaded for that these meshes loaded are properly related to the knitted structure.

Advantageously, in the method according to the invention described hereinafter, the needle beds each comprise holding members arranged between the needles, designated in the state of the art by the term "sinkers". These organs maintain the mesh that has been loaded until the formation of the next charge which allows the mesh charged to be retained in the knitted structure without the need to form a looped mesh.

This arrangement advantageously allows better control of the elasticity of the knitted piece, which may be more elastic, while maintaining the level of desired compression. This arrangement also contributes to obtaining a higher gauge, that is to say more "fine" meshes.

The knitted piece thus obtained advantageously has a great fineness of mesh which allows better control of the pressure imparted.

In one embodiment, the first elastic mesh yarn forms meshes loaded one column of two stitches, on a row of stitches n, and then stitches loaded, on a row of stitches n + p, on the stitches of stitches which have not supported meshes loaded on the row of meshes n, with n and p which are integers different from 0, in particular p is 1 or more.

This arrangement advantageously allows to balance the knitted structure of the knitted piece and to avoid a locking effect related to the first elastic mesh yarn, which improves the aesthetics.

In a variant, said at least one first tubular element, and / or the second tubular element, and / or the main tubular element, comprise a non-elastic mesh yarn forming jersey stitches, in particular corresponding to the second stitch yarn cited above.

The subject of the present invention is, according to a second aspect, a method of manufacturing an article with a compressive effect, such as a glove (hand or foot) compressive, in particular according to any of the variant embodiments described in reference to a first aspect, comprising the following steps:

(i) knitting on a straight knitting machine, comprising first and second needle beds, a first tubular member and then a second tubular member, each of said first and second tubular members comprising an upper end and a lower end opened ; and

(ii) bonding the second tubular member to the first tubular member on the knitting machine at their lower ends;

(iii) optionally knitting on said third and fourth tubular flat knitting machine, each having an upper end and an open lower end, and then connecting the third tubular member to the second tubular member at their lower ends on the knitting machine , then connecting the fourth tubular element to the third tubular element at their lower ends on the knitting machine;

(iv) optionally knitting a main tubular element in the extension of the first and second joined tubular elements, and optionally third and fourth tubular elements joined, said main tubular element is intended to be worn to cover at least in part, the back and the palm of the hand, or the foot;

(v) optionally knitting a fifth tubular member having an upper end and an open lower end and then knitting bonding the fifth tubular member to the main tubular member at its lower end,

the knitting steps (i) and (ii), and optionally (iii) and / or (iv) and / or (v), make it possible to form an integrally knitted part and said at least first and second tubular elements comprise a number of column of stitches, and possibly rows of stitches, per centimeter greater than or equal to 8.

The knitted piece obtained has fine mesh, which allows to control the pressure exerted on the patient.

The method according to the invention also advantageously makes it possible to manufacture articles with a compressive effect.

In one embodiment, in a step (vi), the knitting of the main tubular element, once secured to the fifth tubular element, continues to cover the back and the palm of the hand according to the desired configuration or the foot .

In one embodiment, when the third tubular member is joined to the second tubular member on the knitting machine, a plurality of rows of knit stitches are knitted, thereby forming an intermediate tubular member in the extension of the first, second and third tubular members, the fourth tubular element is secured by knitting to this intermediate tubular element, in the extension of the lower end of the third tubular element.

In one embodiment, in the case of a glove (hand or foot) with compressive effect, the number of needles supporting the first, second, third and fourth tubular elements on a given needle bed, front or rear, is greater than the number of needles supporting the main tubular element on a given bed, front or rear.

Alternatively, the bonding step on the knitting machine (ii), and optionally the bonding step (iii) and / or the step (v), comprises (d) (nent):

a step of waiting for the meshes of the second, or of the first, tubular element supported by a first needle bed, then the displacement (also referred to as the "headpiece") on at least one needle of the first needle bed, also supporting meshes of the first, or second, tubular element, so that once the meshes of the second, or the first, tubular element put on hold carried on the first needle bed, the second, or first, tubular element overlaps the first, or second, tubular element, on the first needle bed, on at least one mesh;

a step of waiting for the meshes of the second, or of the first, tubular element supported by the second needle bed then the displacement (also referred to as the "headpiece") on at least one needle of the first needle bed, also supporting meshes of the first and second tubular elements, so that, once the meshes of the second, or the first, tubular element put on hold are transferred to the second needle bed, the second, or first, tubular element overlaps the first, or second, tubular element on the second needle bed, on at least one mesh.

The first needle bed may be the front or back bed, preferably within the scope of the invention, the first bed is the back bed.

In a variant, the knitting steps (i) and optionally (iii) and / or (iv), and / or (v), comprise (d) (nent) knitting of a first elastic mesh thread forming meshes charged at least one needle out of two, and the first elastic mesh wire forms at least two consecutive charges, preferably at least three consecutive charges.

In one embodiment, the first elastic mesh yarn forms stitches loaded every second needle, on a row of stitches n, and then stitches loaded, on a row of stitches n + p, on the needles which do not have supported with meshes loaded on the row of meshes n, with n and p which are integers different from 0, in particular p is 1 or more.

Detailed description of the invention

The present invention will be better understood on reading the following exemplary embodiments, given by way of non-limiting example, and illustrated by the following figures, appended hereto, and in which:

- Figure 1 is a schematic representation of a first example of a compressive effect article according to the invention, in particular a glove with compressive effect; FIG. 2 is a schematic representation of an alternative embodiment of the first example of a compressive effect article represented in FIG. 1;

FIG. 3 is a schematic representation of a second example of a compressive effect article according to the invention;

- Figure 4 schematically shows three compressive effect articles according to the invention to illustrate the different sizes of possible items within the scope of the present invention;

FIG. 5 is a schematic representation of the mesh diagram of the tubular elements of the compressive effect article represented in FIG. 1; FIG. 6 is a diagrammatic representation of the mesh diagram permitting connection (junction) on the knitting machine of a first tubular element with a second tubular element of the compressive effect article represented in FIG.

The first example of a compressive effect article 1 shown in FIG. 1 is in this specific example a compressive effect hand glove 2. This article 1 comprises an integrally knitted piece 3 comprising a first knitted tubular element 4 (intended to cover index), a second tubular knitted element 5 (intended to cover the middle finger), a third knitted tubular element 6 (intended to cover the annular), a fourth tubular knitted element 7 (intended to cover the little finger), a fifth tubular knitted element 8 (intended to cover the thumb) and a tubular main knitted element 9 (intended to cover the palm and the back of the hand), each of said elements (4,5,6,7,8,9) having, an upper end (4a, 5a, 6a, 7a, 8a, 9a) and an open lower end (4b, 5b, 6b, 7b, 8b, 9b). The first 4, second 5, third 6 and fourth 7 tubular elements are joined at their lower ends (4b, 5b, 6b, 7b) which are in the extension of the main tubular element 9.

In this specific example, the number of columnar columns per cm in the first, second, third, fourth and fifth tubular elements is between 8 and 10, and the number of mesh columns per cm in the main tubular element is included between 10 and 12.

The upper ends (4a, 5a, 6a, 7a, 8a) of the first 4, second 5, third 6, fourth 7 and fifth 8 tubular elements of the first example of compressive article 1 are closed, these ends (4a, 5a, 6a , 7a, 8a) can be closed when knitting the integrally knitted piece 3, or by sewing in a conventional manner. In particular, each tubular element, whose upper end is closed, is knitted starting by knitting said closed end in 1 * 1 rib, and then continue knitting the tube with knit stitches.

In the compressive article variant 10 shown in FIG. 2, the compressive article 10 is a compressive-effect hand glove 11 comprising an integrally knitted piece 18, all of whose upper ends (12a, 13a, 14a, 15a, 16a). first 12, second 13, third 14, fourth 15 and fifth 16 tubular elements are open. The upper ends 17a and lower 17b of the main tubular element 17 are open.

The second example of a compressive effect article 20 shown in FIG. 3 is a mitten comprising an integrally knitted piece 25, which knitted piece 25 comprises a first tubular member 21 intended to cover at least part of the back and the palm of the hand and a second tubular member 22 for at least partially covering the thumb. The upper (21a, 22a) and lower (21b, 22b) ends of the first 21 and second 22 tubular elements are open. The first 21 and second 22 tubular elements are extended by the main tubular knitted element 23.

FIG. 4 represents three different sizes of compressive effect articles (26, 27, 28) in order to illustrate that, thanks to the fine gauge that can be achieved for the compressive articles according to the invention, very varied or even very large sizes may be obtained, for example compression gloves corresponding to the size of children's gloves.

The integrally knitted pieces (3, 18, 25) of the compressive effect articles (1, 10, 20) shown in FIGS. 1 to 3 may comprise a knitted wrist portion for covering the wrist, which knitted portion may comprise a knit rib edge and / or a knitted adherent yarn on the inner side of the wrist portion so as to come into contact with the skin.

The method of manufacturing the compressive effect article 1, shown in Figure 1, will be described below to better understand its construction.

Each tubular element (4,5,6,7,8,9) of the compressive effect hand glove 2 shown in FIG. 1 is knitted according to the mesh diagram shown in FIG. 5. The mesh diagram of FIG. is read from the bottom to the top, the first tubular element 4 is knitted on a straight knitting machine comprising two needle beds (front and back needle beds). In the first rows of stitches, a second, non-elastic, knit yarn 30 is knitted in jersey on all needles of the front and back needle beds 31 32 as shown in lines 12 and 14, and a first elastic warp 33 is knitted, forming meshes loaded on odd needles on the front needle bed, at line 11, so every other needle, and on the needles pairs on the back needle bed, line 13.

In the second rows of stitches, the second stitching yarn 30, inelastic, is knitted in stocking stitch on all needles of the front 31 and back 32 as shown in lines 16 and 18, and the first elastic stitch 33 is knitted, forming meshes loaded on the even needles on the front needle bed 31, at line 15, therefore every second needle, and on the odd needles on the back needle bed, at line 17.

Said loaded meshes are consecutive, that is to say that they follow each other without the first stitch 33 forming loops.

For the sake of simplicity, the stitches on the front and back needle-nosed 32 are shown separately, but they form the first tubular element 4 as represented on the line 19.

The first elastic mesh yarn 33 comprises an elastic core monofilament yarn, for example polyurethane, having a titer of the order of 350 dtex to 940 dtex, and two yarns of covers arranged by wrapping around the core; said cover wires each having a title in the range of 22 dtex to 78 dtex. Preferably, said cover wires are of polyamide (6-6).

The second non-elastic mesh yarn 30 is a yarn with three simple ends, each end having a title of 156 dtex, the total title of the second yarn is thus of the order of 468 dtex, preferably the second yarn is polyamide (6-6).

The second tubular element 5 is knitted in the same way as the first tubular element 4 and then the first 4 and second 5 tubular elements are joined during a knitting bonding step at their lower ends (4b, 5b) according to the mesh diagram shown in Figure 6.

In FIG. 6, the first 5 and second 4 tubular elements are arranged side by side, without being separated by needles, on the needles of the front needle 31 and the rear 32 on the line 11. The FIG. also reads from the bottom up.

The back needle 32 is a right-hand knuckle, that is to say moved a needle to the right (+1) on the line 12. The stitches of the second tubular element 5 arranged on the back needle bed 32 (also called first needle in this text) are then transferred to the sliders of the front needle bed at line 13. The stitches of the second tubular element 5 supported by the needles of the back bed 32 are thus put on hold. Then the back needle 32 is saddled with three needles to the left (-3) so that two meshes supported by the rear needle 32 of the first tubular element 4 are found opposite two meshes of the second tubular element 5 arranged on the front needle bed 31 , as shown in line 14.

Then, the meshes of the second tubular element 5 supported by the rear needle 32 and which were put on hold, are carried on the rear needle 32, as shown in the line 15, so that three meshes of the second tubular element 5 overlap three mesh of the first tubular element 4 on the rear needle 32, as shown in line 16.

The meshes of the second tubular element 5 supported by the front needle bed 31 (also called second needle in this text) are put on hold on the transfer members of the needles of the opposite needle bed, as shown in line 17, then the needle bed rear 32 is to the right of three needles (+3), as shown in line 18, and the meshes of the second tubular element 5 put on hold are reported on the front needle bed 31, as shown in line 19, in so that three stitches of the second tubular element 5 of the front needle bed 31 overlap three stitches of the first tubular element 4 supported by the front needle bed 31, as shown in line 110. Finally, the back needle 32 is topped to the left of a needle (-1), as shown in line 111.

The junction between the first tubular element 4 and the second tubular element 5 is thus performed. Once the third tubular knitted element 6, it will be joined to the second tubular element 5 according to the same method and so on for the fourth tubular element 7 on the third tubular element 6. After the junction of the third tubular element 6 to the second element 5 , a few rows of knit stitches are knitted so that the junction of the fourth tubular element 7 in the extension of the third tubular element 6 is shifted and thus follows the natural disposition of the fingers. Once the first tubular element 4 to the fourth tubular element 7 joined, the main tubular element 9 is knitted in the extension of the (first 4 up to fourth 7) tubular elements joined. The number of needles (and therefore of stitches) on which the main tubular element 9 is knitted is equal to the number of needles (and therefore of stitches) of each of the first to fourth tubular elements minus the number of stitches required for the junctions . The fifth tubular element 8 is knitted separately and then joined to the main tubular element 9 according to the same process junction than that described above to knit together the first 4 and second 5 tubular elements at their lower ends (4b, 5b).

Once the fifth tubular element 8 joins the main tubular element 9, the main tubular element 9 is continued to knit so that the latter covers the back and the palm of the hand in the desired manner.

On the obtained compression glove 2, the first tubular element 4 thus comprises a first front portion 4c corresponding to at least one mesh, preferably at least three stitches arranged on the front needle bed 31 (see line 111), and a first posterior portion 4d corresponding to at least one mesh, preferably at least three meshes disposed on the rear bed 32 (see line 111), said first portions 4c and posterior 4d being arranged at the lower end 4b of the first tubular element 4 as shown in Figure 6. In parallel, the second tubular element 5 comprises a second front portion 5c corresponding to at least one mesh, preferably at least three meshes, disposed (s) on the front needle bed 31; and a second posterior portion 5d corresponding to at least one mesh, preferably at least three meshes disposed on the rear needle 32, said second portions 5c and posterior 5d being disposed at the lower end 5b of the second element tubular 5 as shown in Figure 6.

Following the junction of the first 4 and second 5 tubular elements, the first anterior portion 4c and the second anterior portion 5c knitted overlap on at least one mesh, in this specific example on three meshes, said first 4c and second 5c anterior portions n not being overlapped by the first 4d and second 5d posterior portions.

In addition, the first posterior portion 4d knitted and the second posterior portion 5d knitted overlap on at least one mesh, in this specific example on three meshes, and said first 4d and second 5d posterior portions are not overlapped by the first 4c and second 5c anterior portions.

A compression glove 2 is thus obtained in which the first tubular element 4 and the second tubular element 5 are joined according to a first knitted connection zone (4c, 5c) and a second knitted connection zone (4d, 5d), which is distinct. of the first knitted connection zone (4c, 5c), each of said first and second knitted zones consist of a knitted layer. The junction between the tubular elements of the compressive effect article is thin and comfortable for the user. In addition, the tubular elements can be knitted in jersey "all hands", which allows to obtain a thin gauge, and thus a better control of the pressure exerted and the size of the article 1.

Finally, the charged meshes formed with the second elastic thread 33 are consecutive without forming looped meshes, which advantageously makes it possible to control the elasticity of the knitted piece 3.

In addition, the arrangement of loads alternately on the even and odd needles between the needle beds improves the appearance of the knitted piece and to avoid a barrage effect.

The compression articles according to the invention thus advantageously have a fine gauge, that is to say a number of columns of mesh per cm greater than or equal to 8 and less than or equal to 15, in particular less than or equal to 13 while allowing to control the desired elasticity and compression. Compression articles according to the invention can also be made to measure and in various sizes, or very small, for compression items for children or even young children.

Claims

1. Article with compressive effect (1,2,10,11,20,26,27,28) characterized in that it comprises an integrally knitted piece (3,18,25) comprising at least a first tubular knitted element (4, 12, 21) and a second knitted tubular element (5, 13, 22), each having an upper end (4a, 5a, 12a, 13a, 21a, 22a) and a lower end (4b, 5b, 12b). , 13b, 21b, 22b) open, the first tubular element (4) being joined to the second tubular element (5) at their lower ends (4b, 5b), characterized in that said at least first (4) and second (5) tubular elements each comprise a number of columns of mesh, and possibly rows of stitches, per centimeter greater than or equal to 8.

2. Article (1,2,10,11,20,26,27,28) according to claim 1, characterized in that the first tubular element (4) comprises a first anterior portion (4c) and a first posterior portion ( 4d), at its lower end (4b), in that the second tubular element (5) comprises a second anterior portion (5c) and a second posterior portion (5d) at its lower end (5b), in the first knitted front portion (4c) and the second knitted front portion (5c) overlap on at least one stitch, preferably at least three stitches, and in that said first (4c) and second (5c) front portions do not are not overlapped by the first (4d) and second (5d) posterior portions.

3. Article (1,2,10,11,20,26,27,28) according to claim 2, characterized in that the first knitted rear portion (4d) and the second knitted rear portion (5d) overlap on at at least one mesh, preferably at least three meshes, and in that said first (4d) and second (5d) posterior portions are not overlapped by the first (4c) and second (5c) anterior portions.

4. Article (1,2,10,11,20,26,27,28) according to any one of claims 1 to 3, characterized in that the first tubular element (4) and the second tubular element (5) are joined according to a first knitted bonding zone, and a second knitted bonding zone, distinct from the first knitted bonding zone, each of said first and second knitted zones consist of a knitted layer.

5. Article (1,2,10,11,20,26,27,28) according to any one of claims 1 to 4, characterized in that said piece (3,18,25) integrally knitted comprises a tubular element (9,17,23) main knitted fabric configured to cover, at least in part, the palm and back of the hand, or at least part of the foot, having an upper end (9a), which upper end ( 9a) is joined to the first (4) and second (5) tubular members at their lower ends (4b, 5b), said main tubular member (9) comprises an open bottom end (9b).

6. Article (1,2,10,11,20,26,27,28) according to any one of claims 1 to 5, characterized in that the upper end (4a) of the first tubular element

(4), and possibly the upper end (5a) of the second tubular element

(5), is / are closed (s) or open (s).

7. Article (1,2,10,11,20,26,27,28) according to any one of claims 1 to 6, characterized in that said integrally knitted piece (3,18,25) comprises a number of columns of stitches, and possibly rows of stitches, per centimeter greater than or equal to 8.

8. Article (1,2,10,11,20,26,27,28) according to any one of claims 1 to 7, characterized in that said at least first (4) and second (5) tubular elements, and optionally the main tubular element (9,17,23), comprise at least a first elastic mesh yarn (33) and a second non-elastic mesh yarn (30).

9. Article (1,2,10,11,20,26,27,28) according to any one of claims 1 to 8, characterized in that said at least first knitted tubular element (4), and / or the second tubular element (5), and / or the main tubular element (9,17,23), comprising (d) (nent) a first elastic mesh yarn (33) forming meshes loaded with one column out of two or more.

10. Article (1,2,10,11,20,26,27,28) according to claim 9, characterized in that the first elastic mesh wire (33) forms at least two consecutive charged meshes, preferably at minus three consecutive charged meshes.

11. Article (1,2,10,11,20,26,27,28) according to any one of claims 1 to 10, characterized in that said at least first tubular element (4), and / or the second tubular element (5), and / or the main tubular element (9,17,23), comprising (d) (nent) a non-elastic mesh thread (30) forming knit stitches.

12. Article (1,2,10,11,20,26,27,28) according to any one of the preceding claims, characterized in that the first tubular element (4), and / or the second tubular element (5). ), and / or the main tubular element (9,17,23), comprises (d) (nent) a number of columns of mesh per centimeter greater than or equal to 10, preferably less than or equal to 15.

13. A method of manufacturing an article with a compressive effect (1,2,10,11,20,26,27,28), in particular a glove with a compressive effect (2,11,20,26,27,28), according to any one of claims 1 to 12, characterized in that it comprises the following steps:

(i) knitting on a straight knitting machine comprising first and second needle needles of a first tubular member (4) and a second tubular member (5), each of said first (4) and second (5) tubular elements comprising an upper end (4a, 5a) and an open lower end (4b, 5b); and

(ii) bonding the second tubular member (5) to the first tubular member (4) on the knitting machine at their lower ends (4b, 5b);

(iii) optionally knitting on said straight knitting loom of third (6) and fourth (7) tubular members, each having an upper end (6a, 7a) and an open lower end (6b, 7b), and then bonding to the loom knitting the third tubular member (6) to the second tubular member (5) at their lower ends (5b, 6b), and then connecting the fourth tubular member (7) to the third tubular member (6) at their lower ends (6b, 7b) on the knitting machine;

(iv) optionally knitting a main tubular element (9,17,23) in the extension of the first (4) and second (5) joined tubular elements, and possibly third (6) and fourth (7) tubular elements joined said main tubular member (9) is intended to be worn to cover, at least in part, the back and the palm of the hand, or the foot;

(v) optionally knitting a fifth tubular member (8) having an upper end (8a) and an open lower end (8b) and then connecting the fifth tubular member (8) to the main tubular member (9) at the level of its lower end (8b) on the knitting machine;

the knitting steps (i) and (ii), and optionally (iii) and / or (iv) and / or (v), making it possible to form an integrally knitted part and in that said at least first (4) and second (5) tubular elements each comprise a number of columns of mesh, and possibly rows of stitches, per centimeter greater than or equal to 8.

14. Method according to claim 13, characterized in that the knitting loom (ii), and optionally the binding step (iii) and / or (v), comprises (d) (nent):

a step of waiting for the meshes of the second (5), or the first (4), tubular element supported by the first needle bed (32), then the displacement on at least one needle of the first bed (32), supporting also meshes of the first (4), or the second (5), tubular element, so that once the meshes of the second (5), or first (4), tubular element put on hold reported on the first needle (32), the second (5), or first (4), tubular element overlaps the first (4), or second (5), tubular element, on the first needle bed (32), on at least one mesh;

a step of storing the stitches of the second (5) or first (4) tubular element supported by the second needle bed (31) and then moving on at least one needle of the first needle bed (32), also supporting meshes of the first (4) and second (5) tubular elements, so that once the meshes of the second (5), or the first (4), tubular element put on hold carried on the second needle bed (31) the second (5), or first (4), tubular element overlaps the first (4), or second (5), tubular element on the second needle bed (31), on at least one mesh.

15. Method according to either of claims 13 and 14, characterized in that the knitting steps (i), and optionally (iii) and / or (iv) and / or (v), comprise (d) ) (nent) the knitting of a first elastic mesh yarn (33) forming charges at least every second needle and in that the first elastic mesh yarn (33) forms at least two consecutive loads, preferably at least three consecutive charges.