Compression bandage and compression bandage assembly

Description

[0001] The invention relates to a compression bandage and a compression bandage assembly comprising two layers, as well as methods for producing compression bandages and their use.

[0002] Compression bandages are currently used for diabetic ulcers, for example. The problem here is that, due to the clinical picture, various issues must be considered, namely, sufficient compression, but also a cushioning effect on the limb being treated.

[0003] For example, it may be advisable to apply padding and a compression bandage over it. However, conventional wisdom considers this contraindication in the presence of concurrent arterial occlusive disease.

[0004] In compression therapy, a fundamental distinction must be made between so-called working pressure and so-called resting pressure. Resting pressure is the pressure exerted on the limb by the compression device, in this case the compression bandage, when the limb is in a supine position. Working pressure is the pressure exerted on the limb when the muscles are moving. The working pressure should preferably be 20 to 40 mm Hg above the resting pressure.

[0005] It is also known to use different types of bandages. For example, so-called long-stretch bandages are known, which have very high elasticity and often have an extensibility of over 200%. In contrast, short-stretch bandages are known, which have only low extensibility and only low recovery force, but do not allow further stretching very early on and are thus able to build up a comparatively high working pressure. In contrast, short-stretch bandages build up only low resistance over a comparatively long range and then achieve a very high limitation of extensibility. Traditional short-stretch bandage compression therapy is a measure for the treatment of venous diseases. The materials for short-stretch bandages are usually made of non-elastic materials and elasticized through finishing processes. However, the elasticity decreases significantly during treatment.This can lead to a reduction in compression pressure in the application.

[0006] Known compression bandages are described, for example, in EP 2 275 062 A2, which describes an inner elastic bandage facing the skin with a stretched elastic substrate and a stretched foam layer arranged on the skin-facing side of the substrate, as well as a further stretched self-adhesive elastic bandage applied over this.

[0007] Furthermore, a support, fixation, or pressure bandage is known from DE 20 2012 000 529 U1. The bandage in this case comprises at least four layers and a tension layer that generates the restoring force and has holes, with the remaining layers being secured together by the holes. Due to the four layers provided, the bandage is comparatively expensive and complex.

[0008] Furthermore, reference should be made to WO 2014 / 131976 A2, which also relates to an elastic bandage comprising a non-elastic layer which surrounds the elastic band and is connected thereto.

[0009] From DE 10 2015 226 706 A1 a compression bandage is known, with a padding layer and a support layer, which are connected to each other by means of a stitch-bonding process, over which a second compression bandage can be applied.

[0010] Further compression bandages are known from DE19819442 and DE102015226645.

[0011] It is desirable to provide a compression bandage, which can alternatively be referred to as a compression dressing or bandage, as well as a compression bandage combination that offers a high level of application security while at the same time having good therapeutic properties.

[0012] Where the terms layer or position are used, they refer to the same object.

[0013] Based on this prior art, the invention solves the problem by a compression bandage having the features of claim 1 and a compression bandage assembly of claim 8, as well as a method for producing a compression bandage of claim 14 and a compression bandage for use according to claim

[0014] The compression bandage comprises a nonwoven-based bandage layer over which elastic textile threads are stitched using a stitch-bonding process. The textile threads are heat-shrinkable and non-elastomeric, and the compression bandage exhibits elastic extensibility after heat shrinkage of the textile threads by 50-200%. Preferably, the heat shrinkability of the textile threads can be 50-90%, and more preferably, the heat shrinkability can be 50 to 70%. Due to the heat treatment, the heat-shrinkable textile threads, which were incorporated into the nonwoven using the stitch-bonding process, shrink and shorten. As a result, the entire nonwoven construction also shortens, thus maintaining its resilience and stretch-elastic properties. The shrinkage preferably occurs in the longitudinal direction.The heat shrink treatment of the stitchbonded nonwoven is preferably carried out with hot air (130 °C to 200 °C) or steam (saturated steam or pressurized steam at 100 °C to 140 °C).

[0015] The compression bandage is preferably a bandage with retraction values ​​of less than 90% (DIN 61632). According to a first embodiment, the bandage layer can consist of a chemically, thermally, and / or mechanically bonded nonwoven fabric, in particular a thermobonded nonwoven.

[0016] The base nonwoven fabric can preferably be a fiber nonwoven (staple nonwoven) made of cotton, wool, viscose, polyamide, polyester, acrylic, polyolefin, or mixtures of these fibers; in particular, it can be formed from these fibers, with these nonwovens being bonded, in particular, mechanically or chemically. Alternatively, a spunbond made of polyamide, polyester, polyolefin, acrylic, or mixtures thereof can preferably be used.

[0017] The heat-shrinkable textile threads can preferably be textured multifilament yarns, bicomponent polymer fibers, and microfibers. In particular, the textile threads can be textured polyamide yarns and / or textured polyester yarns. In particular, the sewing threads can be 78 dtex to 320 dtex textured multifilament yarns made of polyamide, polyester, polyethylene phthalate, or polybutylene phthalate, or mixtures thereof. In particular, polyamide 6 to 6.6 can be used.

[0018] It can be provided that the nonwoven fabric itself, without the heat-shrinkable textile threads, is inelastic or stretch-elastic.

[0019] The compression bandage can preferably be cohesive.

[0020] The basis weight of the bandage layer is 20 to 40 g / m 2<, whereby both white and colored bandage layers can be used.

[0021] The bandage layer can be smooth or open-pored or perforated or embossed.

[0022] For overstitching, a thread count of 74 to 96 threads per cm of bandage width is used. The preferred stitch length is 2 to 5 mm.

[0023] Both open and closed fringes or tricot weaves, or combinations thereof, are suitable for the stitched bandages. The compression bandage has a basis weight of 25 to 28 g / m² (stretched) without a cohesive coating and 30 to 100 g / m² (stretched) with a cohesive coating.

[0024] The extensibility according to DIN 61632 at a force of 3 N / cm results in an extensibility of 40 to 100% in the longitudinal direction (MD) and 0 to 50% in the transverse direction (CD). The invention also includes a compression bandage assembly according to claim 8 comprising a first inner bandage and a second outer bandage, wherein the second outer bandage can be applied over the first inner bandage during use.

[0025] Such multilayer bandages for use as compression bandages on the human or animal body are well known. These bandages are created by wrapping at least two separate, different bandages over each other on the body part. It is known to design the inner bandage as a cushioning bandage, which is wrapped directly onto the skin of the body part as the inner layer, and to place a compression bandage over it, which is then wrapped over the first inner bandage as the outer layer, with both layers adhering to each other and forming a non-slip bond.

[0026] The first inner bandage preferably comprises a first section (L1) which has a padding layer at least on its side facing the wearer's skin and in particular has a cohesively adhering second section (L2), and the second outer bandage is a compression bandage of the type described above. The compression bandage assembly is in particular a two-layer compression bandage with a fixed compression pressure comprising a first bandage (component A: padding bandage) and a second bandage (component B: compression bandage according to the invention), wherein component A is first applied to the body part and then component B is wrapped over it, and this combination of layers A and B exerts a fixed compression pressure on the body part.In particular, the present invention comprises a compression bandage for the treatment of venous diseases such as chronic venous insufficiency or chronic venous ulcers, but also diseases with arterial involvement such as peripheral arterial occlusive disease (PAD) or so-called mixed ulcers.

[0027] The invention thus solves the further technical problem of a medical multi-component compression bandage consisting of two separate elastic short-stretch bandages with limited and defined therapeutic pressure. Due to the lower recovery force and the resulting limited contact pressure, the combination of the components enables the production of a starting material whose primary function is a compression bandage for the treatment of peripheral arterial occlusive disease.

[0028] Compression therapy of the lower legs is one of the mainstays for the treatment of chronic venous insufficiency (CVI) and even venous leg ulcers (UCV). Many review articles and guidelines confirm the effectiveness of this therapy with level 1 evidence for ulcer healing and recurrence prevention. At the same time, however, this literature also suggests that peripheral arterial occlusive disease (PAD) should be considered a relative contraindication and advanced PAD an absolute contraindication. Some authors specify this information with an absolute contraindication for a Doppler index (ABI) of <0.6 or even <0.8. However, observational studies show no complications and good tolerability for moderate compression (30 mmHg) in patients with leg ulcers and PAD (ABI 0.5-0.8) over 14 days.In cases of CVI with leg ulcers and concurrently diagnosed peripheral arterial disease (PAD) (ABI 0.5-0.8), arterial perfusion is not impaired by the applied short-stretch compression, but the reduced venous pump function is improved, especially during walking. Treatment of PAD with compression <40 mmHg is easily possible despite the presence of PAD (ABI 0.5-0.8), but healing is delayed. In arteriovenous ulcers (ABI >0.6), short-stretch compression up to 40 mmHg leads to an improvement in arterial flow and venous pump function. In summary, compression therapy appears to be readily possible even with concomitant PAD up to a (threshold) ABI of approximately 0.5. A compression bandage and compression bandage combination according to the invention is capable of guaranteeing a maximum compression pressure of less than 40 mmHg, even under maximum stretch.

[0029] The invention therefore also encompasses the use of a compression bandage according to the invention according to claim 15 for the treatment of venous diseases, chronic venous insufficiency, venous leg ulcers, even in the presence of accompanying peripheral arterial occlusive disease.

[0030] It is provided that the two sections (L1, L2) of the first inner bandage are connected to each other and adjoin each other in the longitudinal direction of the bandage or completely or partially cover each other.

[0031] Furthermore, it can be provided that the first bandage comprises a first padding layer and a second support layer, and that the two layers are joined together in the unstretched state by means of a stitch-bonding process using an elastic sewing thread, with the stitch length being 1.5 to 3 mm / rev at a sewing thread tension of no more than 4 cN. The elasticity can be adjusted by incorporating elastic threads, preferably rubber or polyurethane threads. For example, the elasticity can be achieved by sewing a rigid, single-layer nonwoven fabric with permanently elastic elastane threads in the lengthwise direction using the MALIWATT stitch-bonding technique. The MALIWATT stitch-bonding technique is described in Malimo Nähwirktechnologie, Ploch, Böttcher, Scharch, VEB Fachbuchverlag Leipzig, 1978, 1st edition.Using the same technique, two nonwoven fabric surfaces stacked on top of each other (surface structure 1: standard nonwoven, surface structure 2: fluffy cotton fleece) can be sewn together to form an elastic composite nonwoven surface with a fluffy structure.

[0032] The advantage of a stitch-bonding process is that a bond can be created in several places at once, and the two layers cannot be separated once they have been joined. By selecting the stitch length in the longitudinal direction of the fabric from which the compression bandage or inner bandage is then made (stitch length being the distance between two stitches in the longitudinal stitch direction), and the sewing thread tension, the extensibility of the elastic composite can be adjusted. This creates a composite of the two layers that can no longer be separated by hand, yet is still controllably elastic. Depending on the selection of these parameters, the finished fabric contracts when relaxed, and wrinkles are formed in the material.

[0033] The sewing technique and stitch length of the sewing thread for the inner bandage are adjusted so that the fibers on the cushioning layer on one side of the two-layer composite provide skin comfort and balancing functions, thus ultimately resulting in the inner bandage having two distinctly different sides that are highly functional for pressure equalization. Furthermore, the stitch length must be adjusted so that the desired absorbent and skin-friendly properties of the cushioning layer facing the skin are maintained.

[0034] The cushioning layer is the side of the inner bandage facing a limb and the support layer is the second side applied to it.

[0035] The Malimo or Maliwatt process for bonding the layers of the inner bandage or for producing the inner bandage or compression bandage is used, as is known in the art. For example, elasticity can be achieved by longitudinally sewing a rigid nonwoven or woven fabric with permanently elastic elastane threads using the MALIWATT or Malimo stitch-bonding technique. The MALIWATT or Malimo stitch-bonding technique is described in Malimo Nähwirktechnologie (Maelmo Sewing Technology), Ploch, Böttcher, Scharch, VEB Fachbuchverlag Leipzig, 1978, 1st edition.

[0036] The material of the inner bandage and / or the outer bandage, as well as one or both of the bandage layers (if the bandages are multi-layered), can be inelastic, among other things. This allows the elasticity, which is then provided by overstitching, to be adjusted with particular precision. The elasticity can be longitudinal and / or transverse, preferably in the longitudinal direction of the bandage.

[0037] This design also makes it possible, in the case of multi-layer bandages, to ensure that the two layers are joined by means of the stitch-bonding process, preferably a Malimo or Maliwatt process, whereby the layers are joined in the unstretched state by means of the elastic sewing thread.

[0038] Preferably, the compression bandage (outer bandage) and / or the inner bandage, and, if provided, both layers of the inner bandage, i.e. the cushioning layer and the support layer, can be inelastic and are only made elastic by the stitch-bonding process.

[0039] Furthermore, for the inner bandage, at least one of the two layers, namely the cushioning layer and the support layer, is made of a nonwoven material. In particular, the fabric with a fleece structure can be made of a single- or multi-layer cotton-like nonwoven.

[0040] Alternatively, however, other materials can also be used for the inner bandage, and in particular for one or both layers of the inner bandage, such as woven fabrics, knitted fabrics, or foams. For example, the padding layer can be a layer of cotton fleece, particularly a thermofusion fleece layer, which may also be pre-needled.

[0041] In both processes, namely thermobonding and thermofusion, the nonwoven fibers are laid in a specific direction using a combing process. They are then prepared as nonwoven rolls using a textile functionalization process and stabilized for further processing by temperature or by temperature and pressure. During the thermofusion process, fibers with different melting points are fused together using hot-air dryers. In the thermobonding process, the fibers are fused between heated calender rolls using heat and pressure. In both cases, the result is soft, homogeneous nonwovens that are ideal and suitable for technical applications. Due to the lack of pressure, the thermofusion process is more suitable for upholstery layers.

[0042] In order to achieve an optimal cushioning effect, it can preferably be provided that the thickness of the cushioning layer of the inner bandage is 0.3-12 mm, preferably 0.4-6 mm and more preferably 0.5-3 mm, particularly preferably 0.6-1.2 mm.

[0043] The support layer of the inner bandage can be a thermobonded nonwoven. The thermobonded nonwoven preferably has only a low degree of stretch while maintaining the desired stiffness.

[0044] The nonwoven material of the compression bandage (outer bandage) is also preferably a thermobonded nonwoven. For overstitching, the nonwoven material of the respective bandages is fed to a warp knitting machine and overstitched using an elastic sewing thread, which can preferably be selected from a group consisting of spun-cotton crepe threads, twisted-cotton crepe threads, textured polyamide yarns, textured polyester yarns, rubber threads, or polyurethane elastane threads, or a combination thereof. In the case of multiple layers, the nonwoven material is bonded together. The material used to manufacture the compression bandage is made of non-elastic thermoplastics, which are not normally suitable for the production of elastic fabrics. Due to their spinning process, they tend to have a more crystalline structure than elastomers. Their lack of amorphous structure, which, in contrast, ensures good extensibility in elastomers, results in good stretchability.

[0045] The sewing thread can also be referred to as the warp thread. The thread runs in the machine direction of the warp knitting machine and not across it.

[0046] The finished, sewn fabric of the inner bandage and / or compression bandage always exhibits optimized stretch, whereby it can be particularly preferably provided that the maximum extensibility of the inner bandage and / or compression bandage corresponds to a predetermined optimal extensibility, and any stretch beyond this is limited by a stretch threshold. In this way, application security can be significantly increased, since even inexperienced users can stretch the inner bandage and / or compression bandage up to the stretch threshold, whereby not only the maximum extensibility but also the optimal stretch and thus the optimal compression pressure is achieved, and the inner bandage and / or compression bandage can be applied in this maximally stretched state.

[0047] By overstitching using a stitch-bonding process, the inner bandage and / or compression bandage, once the sewn fabric has been further processed lengthwise, are laid in waves in a relaxed state, creating an irregular surface. This irregular surface, in addition to its primary function as a compensating layer and its secondary function of adjustable stretchability and thus increased application security, also achieves a surface pattern formed by the waves, consisting of raised and lowered material. This pattern is not completely eliminated even when fully stretched, thus creating an additional massage or drainage effect during therapy.

[0048] The classification into the categories of short-stretch, medium-stretch, or long-stretch bandages is based on their extensibility and can be found, for example, in P. Asmussen, B. Söllner, Compression Therapy Principles and Practice, Urban & Fischer Publishing in Elsevier, 2004, page 121. The extensibility is determined according to DIN 61632.

[0049] Furthermore, it can be provided that the extensibility of the compression bandage (second outer bandage) measured according to DIN 61632 is D fix >90%, in particular 40%-80%.

[0050] When applying the compression bandage combination, it is advantageous if the first and second bandages overlap completely and, in particular, precisely at the edges and are adhesively bonded to one another over the entire stretch range 0 to Dfix.

[0051] Preferably, both bandages are cohesively adhesive. A non-slip connection can then be provided by the cohesively adhesive second section of the inner bandage and the cohesively adhesive outer bandage.

[0052] Cohesive adhesion means that there is no adhesion to, for example, skin or clothing, but rather the adhesion only exists between the bandage layers (surface to surface).

[0053] The adhesive forces are determined according to the procedure described below: The adhesive force is the determined force required to separate cohesive samples in the so-called 180 ° T-peel test.

[0054] The cohesive-coated textile is laid out without tension and wrinkles. A 10 cm wide and 40 cm long sample is cut from it. The 40 cm long sample strip is cut in half into two 20 cm long strips.

[0055] The two 20 cm long strips are placed on top of each other so that side A of the first strip lies on side B of the second strip. The prepared sample is placed on a heated stainless steel plate (40 °C) and rolled with a heated metal roller (40 °C) a total of 40 times within 30 seconds (20 times back and forth).

[0056] The weight of the metal roller is 8 kg for 10 cm sample width, i.e. 0.8 kg per cm sample width for widths other than 10 cm.

[0057] The force required to separate the layers of the specimen is then determined in a force-strain tester (manufacturer: ZWICK, INSTRON). For this purpose, the end of the first layer is clamped in the lower clamp and the other end of the second layer is clamped in the upper clamp. Care is taken to ensure that the specimen is positioned between the clamps with as little distortion as possible, i.e., with minimal stress, so that no "resting force" is applied. This arrangement corresponds to a 180° T-peel test. For the measurement, the clamps move apart vertically, with the separation force acting (corresponding to the instantaneous adhesive force of the specimen) being continuously recorded. By integrating the force over the distance traveled by the clamps, the separation work and, from this, the average separation force = adhesive force in cN / cm is determined and calculated. This adhesive force corresponds to the numerical values ​​given in the examples.

[0058] It is particularly advantageous if the adhesive force of the cohesively adhering bandage section and the cohesively adhering second bandage is 20-150 cN / cm, more preferably 30-100 cN / cm and more preferably 40-80 cN / cm.

[0059] Preferably, one or both bandages are coated with an open-pore pressure-sensitive adhesive on one side, providing a cohesive adhesive function. For the compression bandage (outer bandage), a cohesive coating on both sides is also conceivable.

[0060] The components (bandages) adhere to each other when applied and exhibit a synergistic compression effect. This refers to the combined compression pressure exerted on the body part. Furthermore, the multi-layer bandage is intended to solve the problem of mild ambulatory hypertension in veins and arteries when worn as a continuous bandage.

[0061] For the production of the inner bandage, an example is a process for producing a nonwoven compression bandage comprising a Thermobond nonwoven layer sewn to a superhydrophilic or superhydrophobic nonwoven layer. The Thermobond nonwoven is fed to a warp knitting machine in an unstretched state together with a water jet nonwoven, which may also be pre-needled. In the warp knitting machine, the nonwoven (Thermobond) and the superhydrophilic or superhydrophobic nonwoven are sewn together with an elastic material to create a bond that is inseparable by hand yet controllably elastic. The cushioning material resulting from the finished, sewn fabric always exhibits optimized stretch.

[0062] Optimized stretch is generally the result of incorporating elastic threads (high-twist cotton threads as spun or twisted crepe threads, textured polyamide or polyester yarns, rubber or polyurethane-elastane threads) into an inelastic nonwoven, e.g., a stiff thermobond nonwoven. The sewing technique of the nonwoven with the elastic material is regulated by the stitch length and tension so that the fibers form a balancing layer (cushioning layer) on one side of the composite, thus providing high skin comfort. The inner bandage itself has two recognizably different sides that are highly functional for pressure equalization. This layer is identical to the cushioning layer disclosed in DE102015226706.

[0063] The invention particularly relates (component B) to a process for producing a nonwoven-based compression bandage according to the invention, comprising, for example, an autogenously bonded fiber surface that is consolidated by a chemical agent or by a thermal or mechanical process, referred to as a thermobond nonwoven layer, and an elastic, non-elastomeric yarn. The thermobond nonwoven layer is sewn with controlled tensile force in a warp knitting machine using non-elastomeric, heat-shrinkable textile threads in a controlled stretched state. The compressible material resulting from the finished sewn fabric always exhibits optimized elongation; the optimized elongation is the result of the incorporation of non-elastomeric threads (textured polyamide or polyester yarns) and an inelastic nonwoven, e.g., a rigid thermobond nonwoven.The sewing technique of the fleece with non-elastomeric materials and the stitch length are regulated so that a limited compression pressure of 10 to 30 mm Hg is safely achieved in later application.

[0064] The sewn fabric can then be further processed into bandages using longitudinal fabrication. These bandages can be used as an aid in compression therapy, preferably as the second (outer) layer of a two-layer compression bandage.

[0065] The compression bandage preferably has two recognizable and different sides.

[0066] As the second (outer) layer, the bandage regulates the overall contact pressure and provides the necessary stiffness. The non-elastomeric and elastic threads ensure that the compression bandage composition according to the invention does not fall below or exceed a pressure of 20–40 mm Hg. This function is not provided by competing products.

[0067] The invention is described in more detail below with reference to a drawing. Further advantages and features of the invention will become apparent from the remaining application documents.

[0068] The drawing shows: Figure 1 a manufacturing process for a compression bandage according to the invention and Figure 2 a manufacturing method for a first bandage of a compression bandage assembly according to the invention.

[0069] Figure 1shows a manufacturing process for a compression bandage according to the invention, which can also serve as an outer bandage for a compression bandage assembly according to the invention. Reference numeral 10 denotes a nonwoven material to be fed, in particular a thermobond nonwoven material, which is fed to a stitch-bonding device via conveyor devices 4. Reference numerals 1, 2, and 3 denote the stitch-bonding device, which is a conventional stitch-bonding device for overstitching using the Maliwat or Malimo process. For this purpose, elastic sewing threads are fed via the rollers designated 6. The overstitched and thus elasticized nonwoven is wound up at reference numeral 5. Following this, the product can then be made into a compression bandage according to the invention.

[0070] A first preferred embodiment is shown in the following table:

[0071] Compression bandage example: Base fleece Nonwoven fabric (staple fiber nonwoven) made of cotton, wool, viscose, polyamide, polyester, acrylic, polyolefin or mixtures of these fibers (mechanically or chemically bonded) Or spunbond made of polyamide, polyester, polyolefin, acrylic or mixtures thereof Basis weight / color base fleece 20 - 40 g / m 2< , white or colored Structure base fleece Smooth or open-pored or perforated or embossed sewing thread 78 dtex to 320 dtex textured Multifilament yarn made of polyamide 6, 6.6, polyester, polyethylene terephthalate, polybutylene terephthalate Color sewing thread White, colorless / transparent or colored Sewing thread density 24 to 96 threads per 10 cm width Sewing thread stitch length 2.0 to 5.0 mm Sewing thread binding Open fringe or closed fringe or jersey Basis weight of component B (DIN 61632) Uncoated: 25 to 80 g / m 2 < stretched Coated: 30 to 100 g / m 2 < stretched Extensibility (DIN 61632 at K = 3 N / cm) 40 to 100% in the longitudinal direction (MD) 0 to 50% in the transverse direction (CD)

[0072] In Figure 2is shown how, on the one hand, a cushioning layer 21 made of a wadding fleece and a support layer 22, here as a thermobonded fleece layer, are fed from a roll of material and joined together in a stitch-bonding process using a warp knitting machine, which is provided with the reference number 24. The two layers are first fixed to one another via a roller guide 25. The stitch-bonding process works with a hook, by means of which the layers are sewn over with the elastic sewing thread. The material joined together via the elastic sewing thread is then guided through a further roller guide 26 and wound onto a roll 27, wherein, if necessary, a final finishing process in the longitudinal direction into bandages can take place beforehand.The sewing thread is an elastically pre-stretched thread which is inserted with a predetermined stitch length and a predetermined sewing thread tension, and thus leads to a contraction of the layer composite (fabric) after the elastic material has been relaxed.

Claims

1. Compression bandage comprising a non-woven-based bandage layer which is overstitched with elastic textile threads by means of a stitch-bonding process, characterized in that the textile threads are heat-shrinkable and not elastomeric and the compression bandage has, after heat shrinkage of the textile threads, an elastic stretchability of 50-200%, in particular from 50% to 90% and in particular 50% to 70%.

2. Compression bandage according to claim 1, characterized in that the bandage layer consists of a chemically, thermally and / or mechanically consolidated non-woven fabric and is in particular a thermobonded non-woven.

3. Compression bandage according to claim 1 or claim 2, characterized in that the non-woven fabric is inelastic or stretch-elastic.

4. Compression bandage according to any of the preceding claims, characterized in that the textile threads are textured polyamide yarns and / or textured polyester yarns and / or polyethylene phthalate and / or polybutylene terephthalate or combinations thereof.

5. Compression bandage according to any of the preceding claims, characterized in that the bandage layer is formed from a fibrous non-woven comprising cotton, wool, viscose, polyamide, polyester, acrylic, polyolefin or mixtures of these fibers and in particular consists thereof and is in particular mechanically or chemically bonded or in that the bandage layer comprises a spin-bonded fabric made of polyamide, polyester, polyolefin, acrylic or mixtures and in particular consists thereof.

6. Compression bandage according to any of the preceding claims, characterized in that the stitch length of the stitch-bonding process is 2 to 5 mm per revolution using a stitching thread tension of at most 10 cN.

7. Compression bandage according to any of the preceding claims, characterized in that the stretchability of the compression bandage, measured according to DIN 61632, is from 40 to 100% in the longitudinal direction (MD).

8. Compression bandage assembly comprising a first inner bandage (12) and a second outer bandage, it being possible to apply the second outer bandage, during use, over the first inner bandage (12),characterized in that the first inner bandage comprises a first portion (L1), which has a cushioning layer at least on its side facing the skin of a wearer, and a cohesively adhering second portion (L2), and the second outer bandage being a compression bandage according to any of claims 1 to 7.

9. Compression bandage assembly according to claim 8, characterized in that the two portions (L1, L2) of the first inner bandage (12) are connected to one another and adjoin one another in the longitudinal direction of the bandage (12) or completely or partially overlap one another.

10. Compression bandage assembly according to either of claims 8 or 9, characterized in that the first bandage comprises a first cushioning layer (1) and a second supporting layer (2), and the two layers (1,2) are connected to one another in the unstretched state via an elastic stitching thread by means of a stitch-bonding process and the stitch length is 1.5 to 3 mm / rev using a stitching thread tension of at most 4 cN.

11. Compression bandage assembly according to any of the preceding claims 8 to 10, characterized in that the material of one or both of the layers (21, 22) of the inner bandage is inelastic.

12. Compression bandage assembly according to any of the preceding claims 8 to 11, characterized in that at least one of the two layers (21,22) consisting of the cushioning layer (21) and the supporting layer (22) consists of a non-woven material and / or in particular the cushioning layer (21) being a thermofusion non-woven.

13. Compression bandage assembly according to any of the preceding claims 8 to 12, characterized in that the first and the second bandage overlap one another completely and particularly with their edges aligned and are adhesively connected to one another over the entire stretch range 0 to Dfix.

14. Method for producing a compression bandage according to any of claims 1 to 7, characterized in that a non-woven-based bandage layer is overstitched by means of elastic textile threads in a stitch-bonding process, the overstitched bandage layer being subjected to heat treatment in a further step, during which heat treatment the textile threads experience a shrinkage of between 50 and 200%, in particular between 50% and 70%.

15. Compression bandage according to any of claims 1 to 7 for use in the treatment of venous diseases, chronic venous insufficiency, ulcus curis venosum, also in the case of accompanying peripheral arterial occlusive disease.