DE202006017511U1 - Textile fabric for garment with medicinal action contains two different fibers, one with anti-microbial action and one without, knitted in a flat stitch pattern - Google Patents

Abstract

Two yarns, one from a fiber having anti-microbial action (1) and one from a fiber without or little such properties (2), are knitted side by side into a flat fabric, e.g. a jersey stitch. The active fibers, comprising between 18 and 80 %wt of the fabric, lie at least partially on the surface (5) that is worn against the skin. The other fibers are capable of absorbing moisture and conducting perspiration. The two yarns can be of different thickness or extensibility.

Description

The The invention relates to a textile.

Skin irritation, rashes, Inflammation or Allergies are common caused by living organisms such as bacteria or fungi, etc. To step such complaints often and / or over a longer one Period on, can be a permanent treatment with drugs or corresponding ointments or gels undesirable.

Out WO 02/42549 A2 discloses an antimicrobial laundry article, the skin irritations and inflammations can counteract. Accordingly, at least the skin of the User brought in contact side of the garment with a skin contact provided antimicrobial metal coating. It may be this is a metallized tissue that is covered with a copper or preferably silver coating its threads is provided. Such a thing equipped Laundry item shows when worn on the skin, especially during close and prolonged contact antimicrobial action, including killing germs, bacteria, Viruses or fungi is understood. The laundry may be made of a woven, knitted or knitted fabric consist, the threads preferably on all sides are covered with the metal coating.

In However, practice has shown that such textiles, despite the positive effect of germ killing, often are not comfortable to wear. On the skin may be the metal coated surface of the skin Textile by accumulating sweat feel cool and / or damp.

In the US 3,959,556 For example, a yarn is described which comprises a thread of a natural material, eg cotton, and a thread of a plastic, eg nylon. The plastic thread has an antimicrobial chemical agent. In the yarn, the thread of a natural material and the thread of plastic in contact, whereby the antimicrobial agent on the thread of the natural material passes, so that both the thread of plastic and the thread of the natural material have an antimicrobial effect , The plastic thread comprising the antimicrobial chemical agent thereby constitutes a kind of reservoir for the antimicrobial chemical agent. If the antimicrobial chemical agent is washed off the thread from a natural material, for example during the wash, it is replenished from the interior of the thread made of plastic, so that the thread of a natural material again unfolds antimicrobial effect.

From the DE 689 03 582 T2 For example, a yarn with antimicrobial properties is known which has multiple threads. The filaments contain a fiber-forming synthetic polymer. Some yarns of the yarn have anti-microbial properties caused by an antimicrobial agent. The antimicrobial agent can be a chemical compound present in the filaments or an oxidatively stable and non-toxic metal powder, eg a silver powder, with which the surfaces of the filaments are provided.

In the DE 101 27 513 A1 describes the use of antimicrobial polymers for the production of antimicrobial nonwovens, which are understood in particular textile composites and papers. For the production of antimicrobial polymers in the form of fibers can be used. In the production of nonwovens, eg of textile composites and papers, antimicrobial polymers can be added to the fiber mixture.

fleeces can also only later For example, be coated with antimicrobial fiber or threads.

From the DE 20 2005 010 978 U1 For example, there is known an antimicrobial microfiber for use in direct contact with the human body which contains metallic silver particles that are homogeneously distributed in fiber production in at least one polymer component of the fiber. The microfiber may be used alone or in conjunction with other fibers to make fabrics, knits and other fabrics.

In US 2005/0106390 A1 is an antimicrobial synthetic fiber described the various thermoplastic polymers and inorganic having antimicrobial additives. Antimicrobial fibers can with non-antimicrobial fibers, e.g. Cotton, wool, polyester, Acrylic, nylon, etc. are mixed to antimicrobial substances receive.

Out US 2002/0146950 A1 discloses an antimicrobial material, which has two fibers combined together. The one fiber is made of a polyester. The other fiber is one Acetate formed. The acetate fiber is made with an antimicrobial Provided funds.

In the US Pat. No. 6,499,320 B1 a garment is described, which is made of a knitted or woven material. The material has two threads, one of which is provided with an antimicrobial agent. The thread provided with the antimicrobial agent is predominantly on the inside of the garment where the garment contacts the skin of a body part. The antimicrobial thread contains an antimi microbial metal, for example silver or copper.

From the JP 2000064149 A For example, a woven or knitted fabric comprising an acrylic-based fiber and an antimicrobial fiber is known. The antimicrobial fiber has, for example, silver or silver ions.

Of the Invention is based on the object, a textile as possible indicate improved comfort.

To the invention, this object is achieved by a textile with the Features of claim 1. Advantageous embodiments and further developments of the textile result from the dependent of claim 1 claims.

The Textile according to claim 1 comprises at least two different fibers, of which at least a fiber having an antimicrobial, in particular at least one partially metallic, fiber and the at least one other fiber no or less antimicrobial fiber is, at least on one side, preferably one while wearing the textile of Skin-facing side of action, the textile at least in sections essentially only the antimicrobial fiber appears and / or at least in sections both of the at least two different ones Fibers appear, wherein the textile at least partially as plated and / or wendeplattiertes knitted or knitted fabric is executed and wherein at least some of the stitches of the knit or knit the at least two Includes fibers.

If it is said that on the real side of the textile at least In sections, essentially only the antimicrobial acting Fiber appears and / or at least partially both a antimicrobial as well as a no or less antimicrobial appearing fiber, so it means that the fibers on the effect side are visually visible and their intended Unfold their effect. Should the second fiber be a act less antimicrobial fiber, so the ratio of antimicrobial effect of the less antimicrobial fiber on the antimicrobial effect of the antimicrobial fiber for example, about 1/10.

Of the The term "antimicrobial" is intended to be effective against one or more microorganisms such as bacteria or fungi include.

at the clad or Wendeplattierten fiber processing in the course the production of a clad or reversible knitted fabric or knitted fabric is made to the mesh base by another fiber guide an additional Fiber system. So there is a kind of quasi-parallel leadership of antimicrobial and none or less antimicrobial acting fibers and entangling or forking of each other parallel fibers with each other. When plating, the fibers become for example, so processed together that the antimicrobial essentially always on one side of the textile and the non-or less antimicrobial fiber substantially appear on the other side or on both sides of the textile. When turning plating usually appear on both sides the textile antimicrobial and no or less antimicrobial acting fibers. The plating or insert plating can either as complete Deposit each stitch made or patterned controlled. To have to So not all stitches of the knitted or knitted fabric are always antimicrobial acting and a no or less antimicrobial fiber exhibit. With the help of plating or turning plating can So you have the antimicrobial fiber in the desired Way or with the desired Density or pending of the antimicrobial activity to be achieved on one side or bring both sides of a textile and the antimicrobial acting Fiber add a second fiber, another function, such as the removal of moisture, and thus improves the wearing comfort of the textile.

The Invention is based on the finding backed up by tests, that even when mixing a second fiber that is not or less Antimicrobial is effective, through the special measures according to the inven tion nevertheless the antimicrobial or germicidal or germ growth inhibiting Effect of the textile by the antimicrobial fiber completely preserved remains. The special structure of the textile ensures that that on the working side of the textile, which is generally the inside or the skin-facing side of the textile or one of the Textile fabricated laundry or garment is, at least in sections, essentially only surfaces of antimicrobial acting fiber and / or at least partially always both surfaces the antimicrobial fiber as well as surfaces of not or less antimicrobial fiber of the textile occur which are directly opposite the skin. In this way, the antimicrobial fiber can act on the skin surface and at the same time the second non or less antimicrobial fiber increase the wearing comfort and / or the textile functionality influence positively. The higher the proportion of antimicrobial immediately opposite the skin the more effective the fiber is, the better is usually the antimicrobial Effect.

After variants of the invention come in the Carrying the fabric at least partially substantially only surfaces of the antimicrobial fiber, in particular by a corresponding upstream or protruding arrangement of the antimicrobial fiber, on the skin for concern or in contact with the skin. According to further variants of the invention, when the textile is worn, surfaces of the antimicrobial fiber as well as surfaces of the fiber having no or less antimicrobial action on the skin come into contact at least in sections or come into contact with the skin. This contact of the antimicrobial fiber or both fibers with the skin is preferably ensured even with different elongation of the textile.

Especially the non-or less antimicrobial fiber can be a drain of the skin sweat enable, on the one hand already by means of no or less antimicrobial created free space or interruptions in a fiber the antimicrobial surface compared to the state of the art and on the other hand, if the second, no or less antimicrobial fiber the ability has the ability to absorb and dissipate moisture. This will increase the wearing comfort The textile is significantly improved, as it is always pleasantly warm and feels dry. A positive side effect can also be that by the removal the moisture from the skin surface also causes unwanted oxidation or other chemical reaction of the antimicrobial fiber or reduces the antimicrobial substance acting therefrom with the body sweat becomes.

The no or less antimicrobial fiber can be used by others or take over additional functions, for example, the elasticity of the textile. The textile according to the invention can moreover a variety of other no or less antimicrobial acting Fibers comprising the textile in the whole, the working side or give the other side different properties like colors, Pattern, elasticity, Water resistance or other functionalities. It is also in the sense invention, the textile with more than one kind of antimicrobial to provide effective fibers. This could possibly be the effectiveness increase or complement another function.

In an embodiment of the textile according to the invention The at least two fibers in the textile come essentially directly next to each other and / or the at least one not or less antimicrobial fiber and the at least one antimicrobial acting fiber are at least partially superimposed on each other. This means in particular that the fibers are substantially simultaneously are processed. In this case, an arrangement may arise in the the non or less antimicrobial fiber is the basis of the Textile forms and the antimicrobial fiber partially on this or vice versa.

To an embodiment The invention is then, if at least partially both of the at least two different fibers on one side of the textile appear that at least one antimicrobial fiber predominantly on one side of the textile, especially on one while wearing the skin-facing side of the textile, in front. It can then preferably predominantly only the at least one antimicrobial fiber when worn of the textile at least partially rest on the skin or rest or alternatively in addition also the at least one no or less antimicrobial acting Fiber. In this case, you can the advantages already described above, in particular the high wearing comfort, being achieved on the side facing away from the skin Side of the textile, the antimicrobial fiber is not or only partially you can see.

Farther it may be advantageous if the at least one antimicrobial acting fiber and the at least one no or less antimicrobial acting Fiber different fiber thicknesses and / or have a different elongation in the textile. That's how it works For example, make sure both fibers, even if they are overlay each other, appear simultaneously on one side of the textile, be it in the unstretched one Condition or even in the stretched state.

Of the Proportion of antimicrobial fiber in the textile is between 18 wt .-% (mass or weight percent) and 80 wt .-% (as a proportion the antimicrobial fiber in total weight or in total mass of the textile), preferably 18-23% by weight. This proportion can be dependent be of the construction or the kind of the textile. It is always advantageous if a sufficient proportion of the antimicrobial fiber is present on the skin-lying side of the textile. Preferably the antimicrobial fiber is homogeneously distributed throughout the textile, so the antimicrobial effect is essentially at every point the preferred active site occurs. But it can also be beneficial be only certain places or sections in the textile with the antimicrobial effective fiber or specific gravity of the antimicrobial equip effective fiber, for example, to targeted active surfaces create or save costs.

According to one embodiment of the invention, at least one antimicrobial fiber is coated or impregnated with an antimicrobial chemical or biological substance. The at least one antimicrobial fiber may also be an at least partially metallic fiber be. However, it is also possible to use one or more other known antimicrobial substances in fiber form or on a fiber.

To a further embodiment According to the invention, at least one antimicrobial fiber is a plastic fiber, a natural fiber or a mixed fiber with metal coating or metal-containing coating. The plastic or plastic carrier or core of the plastic fiber is preferably a polyester, polyamide, Viscose, polypropylene, nylon or acrylic fiber. The natural fiber In particular, a cellulose fiber or a cotton fiber or a wool fiber. The mixed fiber may include one or more of contain the aforementioned materials. A fiber with metal coating or metal-containing coating can be very well in different Process.

Advantageous but it can also be if at least one antimicrobial fiber a metal fiber or a metal-containing fiber is the fiber so entirely made of a metal or a metal compound or alloy consists. In this case, the antimicrobial effect can not be damage the surface get lost.

At least an antimicrobial fiber, in particular the metallic fiber and / or their metallic or metal-containing coating, contain or contains preferably elemental silver and / or elemental copper and / or elemental gold and / or compounds or alloys of the aforementioned Metals. Silver ions, gold ions and also copper ions are for their antimicrobial Effect known. But also other metals, compounds or alloys, the desired ones Properties may have be used. The metal content of the antimicrobial fiber is preferred between 10% by weight or by weight (% by weight) and 100% by weight (Proportion of the metal in the total weight or in the total mass of the Fiber), preferably between 20% and 80% by weight.

To an embodiment of the textile is the at least one non or less antimicrobial (second) fiber is a natural fiber, in particular a cellulose fiber, preferably a modal fiber, or a cotton fiber or a Wool fiber, but can also be a plastic fiber, preferably a Polyester, polyamide, viscose, polypropylene, nylon or acrylic fiber, or a mixed fiber. The mixed fiber may be one or more contain the aforementioned materials, such as a wool viscose, Wool-acrylic or Wool-cotton-fiber, etc. Can be used in Essentially all fiber types available on the market.

To A variant of the invention is the textile as a right-right knit, as a right-left knit or as a left-and-left knitted fabric, where preferably at least a portion of the meshes the at least two Includes fibers. In this case, the antimicrobial fiber can be homogeneous be distributed in a knitted fabric by not in any stitch with the or less antimicrobial fiber is entangled. But it can also be beneficial if every stitch of knitted fabric at least one non or less antimicrobial fiber and every xth mesh of the trick does not have at least one or less antimicrobial fiber and at least one antimicrobial comprising acting fiber or if any stitch of the knit at least an antimicrobial fiber and every y-th mesh of the trick at least one antimicrobial fiber and at least one no or less antimicrobial fiber. That means either the non or less antimicrobial fiber forms the Base of the knitted fabric and the antimicrobial fiber is regular or irregularly in between knitted or otherwise. Which embodiment is preferred can depend on the fiber size or extensibility or depending on the desired functionality. Farther it may be particularly advantageous if at least one more no or less antimicrobial fiber, especially one or several fibers of different colors, to produce a Pattern knitted is or are.

use The textile is preferred for making clothes or laundry items with the skin come into contact, especially bedding or outerwear or Underwear.

embodiments The invention are in the attached schematic drawings shown. Show it:

1 clad meshes of a knitted fabric according to the invention,

2 a plated mesh,

3 a plating yarn guide,

4 a plated stitched clad knitted fabric and

5 . 6 Images of a scanning electron microscope, which illustrate the position of the fibers of a reversible knitted fabric.

Corresponding parts and sizes are in the 1 to 6 provided with the same reference numerals.

In 1 are stitches of a erfindungsge According right-left plated knitted fabric shown. As an antimicrobial fiber 1 Preferably, a silver-coated polyamide fiber (dtx 78) is used. The adhesion of silver to polyamide has proven to be particularly good. The silver content of the fiber 1 in the exemplary embodiment is about 20 wt .-%, which while keeping costs low, but still develops a sufficient antimicrobial effect. The gravimetric or mass fraction of silver in the fiber 1 but may vary generally from 10% to 100% by weight. The second fiber 2 is a non-or less antimicrobial fiber, preferably a cellulose fiber, in particular a micromodal fiber (Nm 100/1), because of their good moisture removal. However, it is also possible to use a viscose / wool mixed fiber or a fiber made of another suitable material or a suitable combination of materials, in particular a fiber which likewise has good absorption and permeability to moisture and steam, in particular skin or body perspiration.

The silver-coated fiber 1 is distributed homogeneously over the textile. In the present textile, each of the stitches comprises 3 . 4 both the silver-coated fiber 1 as well as the cellulose fiber 2 , The largest surface has the silver-coated fiber 1 on the side of the knit that potentially faces the skin surface, here as the inside or the side of the knit 5 denoted here by the right-hand stitch 3 the silver-coated fiber 1 on top of lies. On the other side of the knit, here as outside 6 denotes superimposed on the cellulose fiber or micromodal fiber 2 the left stitch 4 (see. 1 ). Therefore, when wearing the knitwear, essentially only the silver-coated fiber can be used 1 on the skin.

In 2 is shown to illustrate a larger mesh of right-left plated knit fabric. In 3 a Plattierfadenführer is shown, with which the right-left-clad fabric of the present embodiment can be produced. The silver-coated fiber 1 comes with the plating yarn guide 10 essentially parallel to the micromodal fiber 2 guided. With the indicated knitting needle 11 the respective stitches are produced.

A stitch according to 1 respectively. 2 having right-left clad knitted fabric is in 4 shown, in which on the brighter active side substantially only the antimicrobial fiber appears optically and comes to rest on the skin, although the non-or less antimicrobial fiber is present, but is superimposed by the antimicrobial fiber.

5 shows a scanning electron micrograph of the inside 5 a right-right turn-coated knitted fabric. A right-hand stitch forms a stitch 7 from silver-coated fiber another right-hand stitch forms a micromodal fiber mesh 8th , With the reference number 9 a right-hand stitch is provided which has both a silver-coated fiber and a micromodal fiber. 6 shows the same section again in reflection technique. The mesh 7 made of silver-coated fiber appears darker in this image than the micromodal fiber mesh 8th , In case of in the 5 and 6 As shown, both antimicrobial and non-or less antimicrobial fibers are present on the skin.

The fibers 1 . 2 can be processed or knit into a right-right, right-left, or left-to-left clad or turn-knit fabric using a plating and / or insert plating machine.

If essentially only an antimicrobial fiber is to appear on the active side of a textile, it is possible to produce a clad knitted fabric in which, for example, all meshes have an antimicrobial fiber and a fiber which has no or less antimicrobial action (cf. 1 ) or in which all meshes have an antimicrobial fiber and every y-th mesh has an antimicrobial fiber and a fiber which has no or less antimicrobial action. The antimicrobial fiber effectively superimposes the non or less antimicrobial fiber.

Should on the active side of a textile both an antimicrobial acting Fiber as well as a non or less antimicrobial fiber You can do this by plating or turning to reach. For example, during plating, each stitch has one no or less antimicrobial fiber and every xth mesh a non or less antimicrobial fiber and an antimicrobial acting fiber. The antimicrobial fiber superimposed Actually the non or less antimicrobial effect Fiber. Turning plating shows the on both sides of the fabric antimicrobial fiber as well as not or less antimicrobial acting fiber that is directly or in a desired Alternate shape.

The Density of the antimicrobial fiber in the textile depends on it which, or how many, meshes the antimicrobial fiber alone or in overlay having no or less antimicrobial fiber.

Furthermore, mixed forms are possible. Thus, alternatively or additionally, a textile may have clad or reverse-clad portions of higher and lower density meshes which comprising the antimicrobial fiber.

The Incidentally, the invention is not limited to knitted fabrics. The fibers can also be forfeited together.

1

silver-coated fiber

2

Mikromodalfaser

3

right mesh

4

left mesh

5

inside of the textile

6

outside of the textile

7

mesh made of silver-coated fiber

8th

Mikromodalfasermasche

9

mesh with silver-coated fiber and micromodal fiber

10

Plating

11

knitting needle

Claims (19)

Textile comprising at least two different fibers, of which the at least one fiber is an antimicrobial fiber ( 1 ) and the at least one other fiber is a non-or less antimicrobial fiber ( 2 ), wherein at least on one side, preferably a side of the fabric facing the skin when the textile is being worn, of the textile, at least in sections, essentially only the antimicrobial fiber ( 1 ) and / or at least partially both of the at least two different fibers ( 1 . 2 ), wherein the textile is at least partially embodied as a clad and / or reversible-knitted fabric or knitted fabric and wherein at least a part of the stitches of the knitted or knitted fabric comprises the at least two fibers. The textile of claim 1, wherein the at least two Fibers in the textile essentially occur directly next to each other and / or the at least one non or less antimicrobial fiber and the at least one antimicrobial fiber at least partly superimposed on each other. The textile according to claim 1 or 2, wherein if at least partially both of the at least two different fibers ( 1 . 2 ) appear on one side of the textile, which is present at least one antimicrobial fiber predominantly on one side of the textile, in particular on the active side of the textile facing the skin when it is worn. Textile according to one of the preceding claims, in when carrying the textile at least partially substantially only surfaces directly opposite the antimicrobial fiber of the skin and / or at least partially when carrying the textile surfaces the antimicrobial fiber as well as surfaces of the no or less antimicrobial fiber of the skin immediately are opposite. Textile according to one of the preceding claims, in when carrying the textile at least partially substantially only surfaces the antimicrobial fiber on the skin for concern or come into contact with the skin and / or when wearing the Textile at least partially both surfaces of antimicrobial acting Fiber as well as surfaces the no or less antimicrobial fiber on the skin Plant or come into contact with the skin. Textile according to one of the preceding claims, wherein at least one antimicrobial fiber and at least one no or less antimicrobial fiber different fiber strengths and / or have a different elongation in the textile. Textile according to one of the preceding claims, wherein the proportion of antimicrobial fiber (s) in the textile between 18 wt .-% and 80 wt .-% is. Textile according to one of the preceding claims, wherein at least one antimicrobial fiber having an antimicrobial effect acting chemical or biological substance coated or soaked is. Textile according to one of the preceding claims, wherein at least one antimicrobial fiber at least partially metallic fiber is. Textile according to one of the preceding claims, wherein at least one antimicrobial fiber is a plastic fiber, preferably a polyester, polyamide, viscose, polypropylene-nylon or acrylic fiber, or a natural fiber, especially a cellulose fiber, preferably a modal fiber, or a cotton fiber or a wool fiber, or a Mixed fiber, with metal coating or metalliferous coating is. Textile according to one of the preceding claims, wherein at least one antimicrobial fiber is a metal fiber or a metal-containing fiber. Textile according to one of the preceding claims, wherein at least one antimicrobial we kende fiber elemental silver and / or elemental copper and / or elemental gold and / or compounds or alloys of the aforementioned metals or contains. Textile according to one of claims 9 to 12, wherein the metal portion in the antimicrobial fiber between 10% by weight and 100% Wt .-%, preferably between 20 wt .-% and 80 wt .-%, is. Textile according to one of the preceding claims, wherein at least one non or less antimicrobial fiber a plastic fiber, preferably a polyester, polyamide, viscose, polypropylene, Nylon or acrylic fiber, or a natural fiber, especially one Cellulose fiber or a cotton fiber or a wool fiber, and / or a mixed fiber. Textile according to one of the preceding claims, in the at least one non or less antimicrobial fiber the ability has to absorb and transmit moisture and / or one Removal of the skin sweat allows. Textile according to one of the preceding claims, which is designed as a right-right knit, as a right-left knit or as a left-and-left knit. Textile according to one of the preceding claims, wherein each mesh at least one no or less antimicrobial Fiber and every xth mesh at least one non or less antimicrobial acting fiber and at least one antimicrobial fiber or wherein each mesh has at least one antimicrobial Fiber and every y-th mesh of the fabric at least one antimicrobial acting fiber and at least one non or less antimicrobial comprises acting fiber. Textile according to one of the preceding claims, wherein Mesh only at least one non or less antimicrobial Fiber and mesh only at least one antimicrobial fiber exhibit. Textile according to one of the preceding claims, wherein at least one more non-antimicrobial or less Fiber, in particular one or more fibers of different colors, incorporated is.