EP3560609A1 - Method for coating a knitted fabric, and coated knitted fabric - Google Patents

Abstract

Method for producing a knitted part (1) which is knitted from at least one thread (11) and which is provided with a coating (10) in one or more areas (13) on the outside of the knitted fabric and / or on the inside of the knitted fabric Coating (10) is applied to the knitted part (1) in the region of a free-flowing particle (7) comprising material (4), which is then melted or melted by heating, after which the material is cooled to form the coating (10).

Description

The invention relates to a method for producing a knit part, which is knitted from at least one thread and which is equipped in one or more areas on the fabric outer side and / or the fabric inside with a coating.

Knitted parts with coatings, e.g. in the form of anti-slip devices, for example, in the form of gloves, which are equipped, for example, on the knitted outside in the area of the palm or the fingers with an anti-slip device, or in the form of socks, which are equipped for example on the sole of the foot with an anti-slip device known. These anti-slip devices make it possible to achieve better adhesion with the knitted part on a contact surface or underlay in order, for example, to better grip an object with a glove without the risk of it slipping through the glove or, in the case of a sock, around one to have a better footing on the ground.

So far, such coatings such as the aforementioned anti-slip devices in the form of mostly applied to the knitted outside, relatively thick coatings are usually applied based on a silicone, which are usually printed in the stencil printing. These printed anti-slip zones usually have a thickness of one to several millimeters, resulting from the use of a relatively viscous material which forms the elastic anti-slip device after curing. The cured material has, without being tacky or acting, a correspondingly high adhesion, ie does not slip on the corresponding surface of the gripped or ground-forming covering. Although a functional anti-slip device on the fabric can be provided on this, but this is usually considerably thick and often misshapen, on the other hand it affects the knit properties due to the high amount of material applied to the fabric.

The invention is therefore based on the problem to provide a contrast improved method.

To solve this problem is provided according to the invention in a method of the type mentioned that the formation of the coating on the knitted part in the area a flowable particles comprehensive material is applied, which is then on by heating or melted, after which the material to form the Coating cools down.

In the method according to the invention, to form the coating, e.g. an anti-slip device comprising a free-flowing particles or consisting of such existing material, preferably in the form of a powder or granules. These particles settle on the knitted part, which is knitted according to the type of knit according to dense or open. The application of the particles takes place only in the area in which the coating is to be formed. After application of the material, this is heated, so that the particles on or melt, so that they form a firm connection with the fabric, so that or the thread, that is, they are virtually melted onto the thread or threads. Depending on the application density of the particles, the particles can also adhere to one another and form a larger coating layer. By the melting or melting of the particles, these thus wet the thread or the fabric, so that there is a firm adhesion of the material to the thread or the fabric. Depending on the application density of the particles, the adhesion quality of the coating can be varied, since it can be used to control how many particles ultimately form the antislip device, that is to say how large-area or contiguous the applied coating, e.g. the anti-slip coating is. This means that the formation of thin coatings, e.g. have a sufficiently high adhesion or grip or stiffness is possible.

The material is suitably a powder or granules are used with appropriate fine grain. A fine powder or granules can easily penetrate into thread spaces during application, so that Also, a certain proportion of free-flowing particles can be introduced quasi into the knitted fabric and there it also comes to an adhesion when on or melting, these adhesive particles, if the fabric is inevitably stretched when wearing partially or completely uncovered and eg increase grip or adhesion.

According to an expedient first alternative of the invention, the free-flowing material can be applied in an amount such that a surface coating which forms the coating in the region of the threads results. According to this alternative of the invention, therefore, a relatively large amount of free-flowing material is applied, so that the individual filaments of the adjacent meshes connecting or bridging surface coating results from the on or melting, which can nevertheless be made very thin by the particles not in excessive quantity be applied.

A very expedient alternative, on the other hand, provides that the particles of the free-flowing material are bonded to the threads to form a thread coating without connecting them. According to this alternative of the invention, so much or so little is applied to free-flowing material, that the individual particles only the thread or threads that make up the fabric, ie attach to this, but not the adjacent threads and thus connect the stitches of the knitted fabric. This embodiment of the invention is particularly useful in that it does not or does not appreciably change the elastic properties inherent in the fabric. In the case of a surface coating described above, that is, when the amount of material is high and forms a closed coating surface bridging or connecting threads and stitches, forms, the fabric can not stretch or deform accordingly, as without the coating. Because the knitted inherent elasticity is impaired or prevented in the coating area, since the individual meshes can not move relative to each other. However, differently according to the second alternative of the invention, according to which only so much material is applied that only results in a thread coating, the shape that, although the grip-or adhesion-increasing particles are connected via the melt connection to the thread or the individual stitches, but do not connect the thread to the adjacent thread section or the meshes with each other. Consequently, the elastic properties of the knitted fabric remain as far as possible since the stitches can still move relative to one another. This advantage is particularly useful especially in compression knits, so knitted parts that have a special, possibly also quantitatively normalized compression property, for example medical compression articles or the like. Because despite applying the anti-slip device in the form of very thin thread coating, the compression properties remain virtually unaffected, nevertheless, the compression article, so the compression fabric in the appropriate area has a sufficiently high adhesion or grip.

Another advantage of this thread coating is that it is designed only as a very thin coating, since it is just on the thread adherent respectively partially incorporated into the fabric, that is, results in a very flat coating that is barely visible, nonetheless but haptic is very beneficial.

As a result of the applied coating, it is evident that the properties of the knitted part can be directly influenced. If the coating or the material used is an adhesive or slightly sticky material, then purely local or large-area anti-slip coating can be formed. However, it is also conceivable to use a material which has only a slight elasticity as a coating, so that the elasticity of the knitted fabric itself does not come into play, ie the knitted fabric is relatively inelastic locally or over a large area or the elongation is limited. As a result, for example, so-called reins or bands, ie longer narrower coating sections can be formed on the fabric itself, for example on stockings or bandages, in order to impart special mechanical properties to the fabric, eg for pronation or supination protection in the case of a stocking over the stocking for correction the foot position. Depending on the material used so can areas with different mechanical properties are generated. It is also conceivable to use a dilatant material which changes its elastic properties as a function of the strain rate. If a band-like or rein-type coating of such a material is stretched very quickly on a stocking, as is the case, for example, when the foot is bent over, the coating can develop a blocking effect due to the decreasing elasticity due to the rapid elongation, thus thus counteract the Umknickbewegung or stabilize the joint.

In a further development of the invention, it is conceivable that a plurality of layers of different materials are applied, which are then on to form a multilayer coating by co-heating or melted, after which the material is cooled to form the coating, or that on a first coating layer another layer of another material is applied, which is subsequently fused or melted by heating, after which the other material is cooled to form another layer of the coating. Accordingly, the formation of a coating in sandwich form is provided, ie a multilayer coating whose layers are made of different materials. In turn, the property of the coating as a whole can be varied or adjusted by the combination of materials or the mechanical properties of the different coating layers. Thus, e.g. the one layer has or provide a desired elasticity, while the other layer causes a restriction of elasticity or expansion in the sense of a movement barrier.

The formation of the sandwich coating can be done in two ways. On the one hand, the coating can be produced by applying two or more layers of powder or granules one above the other, after which the knitted part or the material layers are heated and melted together. Alternatively, a first coating layer can also be produced by applying the powder or granules and heating, after which the second coating layer is produced in just this way, subsequently, if appropriate, a third coating layer etc. Here, therefore, the thermal conversion takes place after each material application.

By such a sandwich construction not only the formation of thin coatings is possible, but also the construction of thicker functional coatings, ie of coatings, which has a function resulting from their thickness. Such a functional coating is e.g. a pad, or the like in the manner according to the invention on a bandage. can be trained. For this purpose, several coating layers of the same or different materials are applied one above the other until the desired thickness and optionally also the shape (for example slightly curved) results. This functional element is firmly connected to the fabric because it is melted. But also the formation of thicker holding or fastening sections to which a third object attached, in particular can be melted, is conceivable. For example, can be applied to a bandage on opposite sides of two mutually spaced along the bandage carrier coatings of sufficiently rigid material to which the legs of a joint structure attached, in particular can be melted so that they can be firmly and captively connected to the knitted part and an orthosis results. In addition, the carrier coating can also be used to hold a pad, e.g. also by melting, serve.

In a further embodiment it can be provided that a second coating layer made of a water-soluble material is applied in sections to a first coating layer, after which a third coating layer is applied to the first and the second coating layer. This makes it possible to produce two superimposed but not interconnected coating layers. On the fabric, a first coating layer is applied in the manner described. Subsequently, an intermediate layer of a water-soluble material is applied in sections to the first coating layer, which serves as a quasi-release layer for a subsequently applied further coating layer, both on the first coating layer and on the water-soluble layer is tethered. Now, if the knit part is washed, the water-soluble layer dissolves and the two coating layers are separated from each other, but connected together at their ends. Thus, defined band structures can be created.

The material itself is preferably sprinkled onto the knit part, for which purpose a corresponding scattering device can be used, from which the flowable material trickles, for example, onto the fabric underneath or an already applied material or an already applied coating layer. On the part of this spreading device or, for example, the throughput time of the knitted part moved underneath, a very accurate metering of the applied powder or granulate on the knitted part or the material or the coating layer can be set with a correspondingly set discharge amount.

The free-flowing material itself can be scattered only locally on the outside of the fabric or the fabric inside or an already applied material or an already applied coating, that is, only selectively equipped areas with a coating, such as a non-slip device. In the case of a glove, for example, this may be the area of the palm, as well as the area of the inside of the fingers. In the case of a sock, this may be, for example, the sole in some areas, possibly also the toes or the like locally. Of course, depending on the field of application or embodiment of the knitted part, a coating of the knitted interior side is also conceivable, for example in the case of a sock in the area of the upper edge, so that the anti-slip device serves as a binding edge, which prevents slipping of the stocking or the like. As an alternative to the only local application of the material, which of course can also be applied in several individual, spaced-apart areas, it is also conceivable that the knitted outer side or the fabric inner side or an already applied material or an already applied coating is completely sprinkled with the flowable material , so that consequently forms over the entire knitted outer or inner surface, the coating. In this way can be a very large-scale improvement, for example, the adhesion or grip in the case of an anti-slip coating. This improved adhesion or improved grip is in any case unpleasant, as, as stated above, the layer or the adhesive coating can be made very thin and therefore of course the adhesion or grip feel can be varied accordingly. For example, in the case of a sock, the fabric inner side can be covered over a large area or over the entire surface, wherein a layer which is as thin as possible is preferably produced only in the form of the thread coating. This ensures that the stocking can not slide down, since he just large-scale inside the leg rests grippy, at the same time this gripping concerns haptically not disadvantageous, since on the inside only very little grip or adhesion-promoting coating is provided. As stated, however, coatings with other properties than an anti-slip property are conceivable.

In order to delimit the region (s), it is preferable to use a template when sprinkling the material, which allows a simple, locally accurate application of the material.

To apply or sprinkle the knitted part can for example lie on a grid and the material are sprinkled from above, wherein laterally next to the knitted part scattered material is collected below the grid. For example, in the case of a glove, the glove may be conveyed over the grille by moving the grate below the spreader, from which the material trickles out as it moves past. The material that impinges, for example, on the palm and the inner surface of the finger, remains on it, next trickling material is collected below the grid again, during which scattering of the not scattered on the fabric part material can be done to dissipate this immediately and immediately and also Material that impinges in the edge region, for example, the finger where a coating, for example in the form of anti-slip device is not desired, can be sucked off.

After application of the material, this is sufficiently heated so that it comes to the melting or melting, whereby the adhesion to the actual knitted part is achieved, after which it is cooled, resulting in the final formation of the coating.

The material used is preferably a thermoplastic or elastomeric polymer, and any polymer can be used which, upon cooling of the coating, bonds the desired properties, e.g. still sufficiently flexible and elastic, at the same time sufficient adhesion. Preference is given here to using a polymer in the form of a polyurethane, although this list is not exhaustive. Such a polyurethane melts, for example, at a temperature of about 120 ° C, it has a good wetting property, so that a firm connection to the thread or the fabric is possible, at the same time it also has good grip and adhesive properties. Should the knit be given other properties than improved adhesive properties, e.g. a local stiffness or strain limitation or the like., As appropriate polymers are used as a material which form the coating, the desired coating properties in the molten state, the coating.

Overall, the inventive method provides the application, for example, a sufficiently thin coating, for example, a sufficiently thin anti-slip or adhesive coating, which can be partially integrated into the knitted fabric and either as a quasi-thin, but closed coating or adhesive coating can be performed, or as the individual adjacent threads not connecting thread coating. Depending on the material used and coating thickness, the force / elongation behavior or the corresponding elasticity properties of the fabric is far less or not appreciably affected by this applied coating, compared with previously known, very thick printed adhesive coating, as well as the main physiological properties change only relatively small , Especially when only very little material is scattered and it comes to a thread assignment. In addition, with relatively thin coatings but also extensive changes in the force / strain behavior can be achieved, thus the elasticity properties of the knitted fabric can be changed or reduced locally or globally.

As already described, the knitted part can be a glove which is provided with the coating at least on the inner outside of one or more knitted finger sections. Alternatively, the knitted part may be a sock, which is provided on the inside with the coating at least on the outside and / or inside of the sole and / or in the region of the upper open sock end. Also, the knit part may be a bandage, which is provided at least partially on the inside or the outside with the coating. This list is not exhaustive but merely exemplary, therefore not restrictive.

The knit itself may be a flat or a circular knit.

In addition to the method, the invention further relates to a knitted part, which is knitted from at least one, usually a plurality of threads and which is provided in one or more areas on the fabric outside and / or the fabric inside with a coating, said knitted part according to the invention according to the method described above is made.

According to a first alternative of the invention, the knit part is further distinguished by the fact that the coating is designed either as a surface coating which connects the threads and forms the coating. Alternatively, it is conceivable that the coating is designed as a thread coating not connected to the threads and connected only to the threads. In this embodiment, the individual fine-grained particles of the powder or granules are consequently connected only to one thread, that is to say they are attached via the melting and not simultaneously to two or more threads.

The coating itself consists of a thermoplastic or elastomeric polymer, in particular a polyurethane.

It can be a glove which is provided with the anti-slip device at least on the inner outside of one or more knitted finger sections. Alternatively, the knitted fabric may also be a stocking that is provided on the inside with the coating on the outside and / or on the inside and / or on the inside of the upper open stocking end. Finally, the knitted part can also be a bandage, which is provided at least in regions on the inside with the coating.

Fig. 1

eine Prinzipdarstellung zur Erläuterung des erfindungsgemäßen Verfahrens,

Fig. 2

eine Prinzipdarstellung eines Teils eines Gestricks mit darauf aufgebrachten rieselförmigen Partikeln in Pulverform vor der Temperaturbehandlung,

Fig. 3

eine Schnittansicht durch das Gestrick aus Fig. 2 als Prinzipdarstellung nach der Temperaturbehandlung,

Fig. 4

eine Prinzipdarstellung einer Teilansicht eines Gestricks entsprechend Fig. 2 mit darauf aufgebrachten rieselförmigen Partikeln in Form eines gröberen Granulats vor der Temperaturbehandlung,

Fig. 5

eine Schnittansicht durch das Gestrick aus Fig. 4 nach der Temperaturbehandlung,

Fig. 6

eine Aufsicht auf das Gestrick aus Fig. 4 nach der Temperaturbehandlung,

Fig. 7

eine Prinzipdarstellung eines außenseitig an mehrere Bereichen mit einer Beschichtung in Form einer Antirutscheinrichtung versehenen Handschuhs,

Fig. 8

eine Ansicht vergleichbar zu Fig. 7 mit großflächig mit einer Beschichtung in Form einer Antirutscheinrichtung versehenem Handschuh,

Fig. 9

eine Prinzipdarstellung eines auf links, also die Innenseite nach außen gedrehten Sockens mit großflächiger Beschichtung,

Fig. 10

die Außenseite der Sohle des Sockens aus Fig. 9 mit lokaler Beschichtung in Form einer Antirutscheinrichtung,

Fig. 11

eine Prinzipdarstellung einer Bandage mit Beschichtung in Form einer Antirutscheinrichtung

Fig. 12

eine Schnittansicht durch ein Gestrick mit mehrschichtigem Besch ichtungsaufbau,

Fig. 13

eine Prinzipdarstellung eines Strumpfes mit lokalen band- oder zügelförmigen, relativ steifen Beschichtungen, und

Fig. 14

eine Prinzipdarstellung einer Bandage mit daran angeordneten Träger-Beschichtungen für eine Gelenkmechanik.

Further advantages and details will become apparent from the embodiments described below and with reference to the drawings. Showing:

Fig. 1

a schematic diagram for explaining the method according to the invention,

Fig. 2

a schematic representation of a part of a knitted fabric with applied thereon shaped particles in powder form before the temperature treatment,

Fig. 3

a sectional view through the fabric Fig. 2 as a schematic representation after the temperature treatment,

Fig. 4

a schematic representation of a partial view of a knit according Fig. 2 with free-flowing granules in the form of coarser granules applied before the treatment with heat,

Fig. 5

a sectional view through the fabric Fig. 4 after the temperature treatment,

Fig. 6

a view of the fabric Fig. 4 after the temperature treatment,

Fig. 7

a schematic representation of an externally provided on several areas with a coating in the form of anti-slip device glove,

Fig. 8

a view similar to Fig. 7 with a glove provided with a coating in the form of an anti-slip device over a large area,

Fig. 9

a schematic representation of an on the left, so turned the inside outward sock with large-scale coating,

Fig. 10

the outside of the sole of the sock Fig. 9 with local coating in the form of anti-slip device,

Fig. 11

a schematic diagram of a bandage with coating in the form of anti-slip device

Fig. 12

a sectional view through a knitted fabric with multilayer Besch ichtungsaufbau,

Fig. 13

a schematic representation of a sock with local band or rein, relatively stiff coatings, and

Fig. 14

a schematic representation of a bandage with arranged thereon carrier coatings for a joint mechanism.

Fig. 1 shows a schematic diagram for explaining the various process steps of the manufacturing method according to the invention.

A fabric part 1, for example a glove or the like, shown in this way according to the principle is transported on a grid 2 to a spreading device 3 in which a material 4 consisting of free-flowing particles is received. Via a bottom-side opening 5, which can be reversibly closed and opened by means of a closing device 6, the free-flowing particles 7 trickle downwards. The knitted fabric 1, which, as shown by the arrow P, is conveyed to the Aufrereueinrichtung 3, is conveyed below the same, so that the free-flowing particles are sprinkled on top of the knitted part 1. The scattering process is supported by a suction, as shown by the arrows P ', that is, that not falling onto the knitted part 1 particles can be sucked and reused at the same time.

After completion of the Aufstreuvorgangs, see sub-figure b), the knitted part 1 is provided with a very thin particle coating 8, wherein the individual particles 7 are on the fabric part 1 forming threads.

Then, see sub-step c, the knitted part 1 sprinkled with the particles 7 is placed in a furnace 9, where it is heated at a corresponding temperature until the particles 7 melt or melt and, as easily or completely fluid, the threads of the knitted part 1 or knit fabric part 1. After a corresponding holding period, the knitted fabric 1 is removed from the oven 9 and cooled so that it is superficially provided with an anti-slip device 10, formed from the particles 7 adhering or fused to the knitted fabric 1 respectively.

Depending on how large the particles 7 are or how much they are used up, different configurations of the corresponding coating 10, e.g. conceivable in the form of a non-slip device.

Fig. 2 shows in the form of a schematic representation of a knitted part 1, which is knitted in the example shown from a thread 11 which is knitted mesh forming. The Fig. 2 shows the knitted part 1, which is knitted from a thread 11, wherein Of course, the knitted part 1 can be knitted from several threads. The schematic diagram shows the knitted part 1 immediately after the scattering of the material 5, in which case the free-flowing particles 7 are in powder form, ie very fine-grained. Obviously, the fine powder particles 7 lie on the thread 11. The degree of coverage is very low, which means that the individual particles 7 are quasi isolated or lie on the thread 11 in a very low density. With increasing occupancy, the number of particles per thread would also increase, which would lead to a corresponding increase in the amount of adhesive or grip-promoting coating.

After scattering of the particles 7, the knitted fabric 1 is heated so that they are on or melted, and then cooled again, so that the particles 7 and the material solidifies again. Fig. 3 1 shows a schematic representation of a section through the knitted part 1. It can be seen that the individual molten particles 7 are present only locally on the thread 1, the plurality of individual particles 7 providing the coating 10, for example the anti-slip coating 10, which is embodied here as a pure thread coating. since the individual particles 7 and / or the individual gripping and / or adhesion points are only provided locally on the thread 11, they are not, however, melted as a large-area coating which bridges the threads of the adjacent courses I, II and III. The coating 10 produced thereby is thus extremely thin, partially incorporated into the knitted part 1 and almost invisible, in particular when a powder is used which is similar in color to the thread color or which is transparent. Although there are virtually only local detention centers, formed over the individual particles 7, there is nevertheless a clear improvement in adhesion or grip in comparison to the uncovered knit part 1. If the application amount is increased, significantly more powder particles 7 are present on the thread or the thread single stitches. The particles 7 also melt on heating, but due to the fineness, the individual, molten particles 7 form only a possibly closed thread coating within the individual courses, a connection of the threads of the adjacent ones Mesh rows do not take place even with higher bulk density of the fine powder particles 7.

An example with a closed, overarching coating is in the Fig. 4-6 shown. Shown is again the knitted part 1, also here consisting of the single thread 11, whereby here also several threads can be used. Shown again are the three courses I, II, III. The material is also scattered here but not melted. It is applied only to the upper fabric half, the lower fabric half shown in the figure is unoccupied. The particles 7 shown here are formed by means of a significantly coarser powder or granules, the bulk density is relatively large. Due to the size of the particles, it happens that the particles 7 not only accumulate on the thread 11, but also close the spaces between the thread 11 and the courses I, II and III. If now this knitted part 1 is heated, the particles 7 in turn melt, but due to the high particle density it forms, see the sectional view in FIG Fig. 5 , a closed surface coating, which, see also Fig. 6 , the knit 1 also over the courses I - III overlapping occupied. Although the coating 10 here in the form of an anti-slip device due to the material used 4 elastic, nevertheless the intrinsic elasticity of the fabric 1 is changed due to this surface coating at least in the corresponding area, that is, the force-strain behavior in this area is different than in the pure textile surface.

The material 4 or the particles 7 are, for example, a plastic or elastic polymer, for example a polyurethane, which melts at a temperature which does not affect the properties of the yarn or yarns, but which polymer has sufficient elastic properties and good haptic properties at room temperature Improvement of grip or adhesion shows.

Fig. 7 shows a first example of a finished knitted part 1 in the form of a glove, wherein here in the region of the individual fingers 12 corresponding Areas 13 are provided with local coating 10 in the form of anti-slip devices, so where appropriate material was scattered and finally melted. Also in the region of the palm 14, a corresponding region 13, in which the coating 10 is formed, is provided.

Fig. 8 also shows a knitted part 1 in the form of a glove, in which case the glove inside, ie the area of the palm 14 and the inside of the fingers 12, with the coating 10 in the form of anti-slip device, as indicated by the gepünktelte representation, on the scattered and melted Powder or granules is provided.

Fig. 9 shows a knitted part 1 in the form of a stocking, which is shown here "turned to the left", that is, here the stocking outside or inside side is shown. As shown by the puncture, provided a large area coverage with the coating 10 in the form of anti-slip device, which is provided here only in the region of the shaft 15 of the sock.

Fig. 10 shows the outside of the sock with the sole 16. This knitted outer side is provided in the region of the heel 17 as well as in the area of the bale 18, as represented by the puncture, in each case with the coating or antislip device according to the invention.

Finally shows Fig. 11 an embodiment of a knitted part 1 in the form of a bandage, said bandage in addition to the actual knitted part 1 also has corresponding tensioning or pulling means 19 in order to fix them in accordance with the leg. Although here the knitted outer side is shown, is indicated by the puncturing that the coating 10, also here, for example, an anti-slip device formed again formed on the scattered powder or granules on the fabric inside, so the side facing the skin of the leg side, so that towards the leg the corresponding good adhesion is given.

Fig. 12 shows a partial view, cut, of a knitted part 1 with arranged thereon coating 10, which is designed here as a sandwich coating. It consists in the example shown of a first coating layer or layer 10a of a first material, said coating layer or layer 10a was prepared in the manner described above, ie by applying a corresponding powdered material was subsequently heated. A second coating layer or layer 10b is applied to the first coating layer or layer 10a, likewise by controlling a powdery or granular material and subsequent heating, wherein the materials used of the two coating layers or layers 10a, 10b are different, so that consequently the individual Coating layers or layers 10a, 10b are given different mechanical properties. As indicated by dashed lines, it is of course conceivable to apply a further or more further coating layers or layers 10c in a corresponding manner in order to further increase or thicken the sandwich structure.

As an alternative to applying respectively producing individual, respectively heated coating layers or layers, it is also conceivable to produce them by successively scattering corresponding material layers from the various powders or granules, which are then heated together and then melted or melted, so that the corresponding sandwich composite results.

By means of such a multi-layer structure, it is conceivable, for example, to obtain an expansion limit with the inner, ie, near-knit, coating layer or layer 10a, while the outer coating layer or layer 10b is, for example, an adhesive layer which, for example, adheres to the skin. On the one hand, a good adhesion is achieved, but at the same time also prevents excessive stretching, for example as pronation or supination protection or the like. Of course, other layer properties are conceivable.

However, such a multilayer sandwich construction also makes it possible to form correspondingly thick coating structures in order, for example, to form a correspondingly thick pad, with a correspondingly geometric shape, by the application of a plurality of such layers. This pad is due to the melting firmly connected to the knitted part, but can be adjusted according to their properties, for example, by using again different layers of material accordingly.

Fig. 13 shows a knitted part 1 in the form of a stocking, in which two band-shaped or rein-shaped coatings 10 'and 10 "are provided.These two coatings 10', 10" are made, for example, of a polymer which is relatively stiff in the coating form, ie Reduced elasticity of the knitted fabric to which they are applied. This means that the knitted part 1 is preferably stiffer in the longitudinal direction of the band-shaped or rein-shaped coatings 10 ', 10 ", but also in the transverse direction, and therefore can not stretch or only slightly stretch Such a protective coating is expediently designed to be somewhat thicker, for example by a sandwich structure described above, preferably when using the same materials of the individual coating layers or plies.

Finally shows Fig. 14 a knitted part 1 in the form of a bandage, in which two coatings 10 ', 10 "are respectively applied to the outside of the knitted fabric, based on the support position on the outside of the leg and the inside of the leg .. The coatings 10', 10" are elongated and sufficiently stiff, So from a corresponding, relatively inelastic material. Because they serve as carrier coatings for fastening a hinge mechanism 20 shown here only in dashed lines, which are fastened with their two legs 21a, 21b to a coating 10 ', 10 ", respectively. The hinge mechanism can be a plastic component, that is to say the two legs 21a, 21b welded by plastic welding to the coatings 10 ', 10 "respectively can be melted. The two legs 21a, 21b are hinged together in a hinge point 22.

After corresponding articulated mechanisms 20 are provided on both sides of the knitted part 1, an orthosis can be formed over this, which makes possible a movement guidance or movement limitation of the knee, via which the knitted part 1 engages.

Claims (16)

Method for producing a knitted part (1) which is knitted from at least one thread (11) and which is provided with a coating (10) in one or more regions (13) on the outside of the fabric and / or the fabric inside, characterized in that for forming the coating (10) on the knitted part (1) in the region of a flowable particles (7) comprising material (4) is applied, which is then on by heating or melted, after which the material to form the coating (10) is cooled. A method according to claim 1, characterized in that as a material (4) a powder or granules is used. A method according to claim 1 or 2, characterized in that the free-flowing material (4) is applied in an amount that either in the region (13) the threads (11) connecting, the coating (10) forming surface coating results, or the particles of the flowable material (4) are connected to form a thread coating only at the threads (11), without connecting them. Method according to one of the preceding claims, characterized in that a plurality of layers of different materials are applied, which are then to form a multilayer coating by co-heating or melted, after which the material is cooled to form the coating (10), or a further layer of another material is applied to a first coating layer, which is subsequently fused or melted by heating, after which the other material is cooled to form a further layer of the coating (10). A method according to claim 4, characterized in that on a first coating layer, a second coating layer of a water-soluble material is applied in sections, after which a third coating layer is applied to the first and the second coating layer. Method according to one of the preceding claims, characterized in that the material (4) is sprinkled onto the knitted part (1) or an already applied material or an already applied coating layer. A method according to claim 6, characterized in that the material (4) is scattered only locally on the knitted outside or the fabric inner side or an already applied material or an already applied coating, or that the material (4) on the outside of the fabric or the fabric inside or a already applied material or an already applied coating is spread over the entire surface. A method according to claim 7, characterized in that for local delimitation of the area or a template is used in scattering the material (4). Method according to one of claims 6 to 8, characterized in that the knitted part (1) on a grid (2) and the material (4) is sprinkled from above, wherein laterally next to the knitted part (1) scattered material (4) below of the grid (2) is caught. A method according to claim 9, characterized in that during the Aufstreuens an extraction of not on the knitted part (1) scattered material (4). Method according to one of the preceding claims, characterized in that a thermoplastic or elastomeric polymer is used as the material (4), wherein preferably a polyurethane is used as the polymer. Method according to one of the preceding claims, characterized in that the knitted part (1) used is a glove which is provided with the coating (10) at least on the inner outside of one or more knitted finger sections (12), or as a knitted part (1 ) a stocking is used, which is provided at least on the outside and / or inside of the sole (16) and / or in the region of the upper open sock end on the inside with the coating (10), or that as a knitted part (1) a bandage is used , which is at least partially provided on the inside or on the outside with the coating (10). Knitted piece which is knitted from at least one thread (11) and which is provided in one or more regions (13) on the outer side of the fabric and / or the fabric inner side with a coating (10) produced by the method according to one of the preceding claims. Knitted piece according to claim 13, characterized in that the coating (10) is formed either as a thread connecting the threads (11), the coating (10) forming surface coating, or as a only at the threads (11) tailed, the threads (11) non-connecting thread coating is formed. Knitted piece according to claim 13 or 14, characterized in that the coating (10) consists of a thermoplastic or elastomeric polymer, in particular a polyurethane. Knitted piece according to one of claims 13 to 15, characterized in that the knitted fabric (1) is a glove, which is provided at least on the inner outside of one or more knitted finger portions (12) with the coating (10), or that the knitted part ( 1) is a sock which is provided at least on the outside and / or inside of the sole (16) and / or in the region of the upper open sock end on the inside with the coating (10), or in that the knitted part (1) is a bandage, which is at least partially provided on the inside or the outside with the coating (10).

Images