Heat dissipating fabric

The double-layer fabric with polyethylene terephthalate and polyethylene layers addresses the inadequacy of existing sportswear fabrics in heat dissipation, enhancing evaporative cooling and thermal conductivity for improved comfort and performance in intense conditions.

WO2025132343A1PCT designated stage expired Publication Date: 2025-06-26ON CLOUDS GMBH
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Patent Information

Application Number
PCT/EP2024/086775
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-12-20
Filing Date
2024-12-17
Publication Date
2025-06-26

AI Technical Summary

Technical Problem

Existing sportswear fabrics are insufficient for high-intensity workouts or hot weather conditions, leading to a risk of hyperthermia due to inadequate heat dissipation.

Method used

A double-layer fabric construction with an outer layer of polyethylene terephthalate for superior moisture management and an inner layer of polyethylene for high thermal conductivity, enhancing evaporative cooling and heat dissipation.

Benefits of technology

The fabric achieves more efficient heat dissipation through an asymmetric structure, improving sweat evaporation and thermal conductivity, thus providing better comfort and performance during intense physical activity or in hot environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

A fabric comprises a first surface (1) and a second surface (2) opposite to the first surface. At least 50% of the first surface (1) is occupied by polyethylene. At least 50% of the second surface (2) is occupied by polyethylene terephthalate.
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Description

[0001] Heat Dissipating Fabric

[0002] FIELD OF THE INVENTION

[0003] The present invention relates to a fabric, a method for manufacturing the same and to a garment comprising such a fabric.

[0004] BACKGROUND OF THE INVENTION

[0005] For sportswear garments, it is very important that the fabric of which the garment is made supports heat dissipation from the wearer’s body to enable heat management. Dissipation of heat is a critical factor for both performance of athletes and the wearer’s overall feeling of comfort.

[0006] Much effort has been made in the prior art to develop improved textile fabrics which allow for better heat management. By way of example, WO 2022 / 236076 A1 proposes a cooling yarn and fabrics for use in apparels. This yarn includes a plurality of filaments. At least one of these filaments includes polyethylene (PE), a material that is known to be transparent for infrared (IR) radiation and to show high thermal conductivity. Polyethylene thus allows for heat loss, both through radiation and thermal conduction.

[0007] However, while the above-mentioned fabrics allow for sufficient heat management in everyday situations, especially in a moderately air-conditioned environment, they are not sufficient high intensity workouts or hot weather conditions, where there is a risk for the human body to suffer from hyperthermia. It is therefore a problem underlying the present invention to provide an improved fabric, which allows for sufficient heat dissipation during intense physical activity or in hot environments. Furthermore, the fabric shall be economic in manufacture and provide a good handfeel.

[0008] SUMMARY OF THE INVENTION

[0009] The above-mentioned problems are solved by a fabric according to the present invention. In a first aspect, the fabric comprises a first surface and a second surface opposite to the first surface. At least 50% of the first surface is occupied by polyethylene. At least 50% of the second surface is occupied by polyethylene terephthalate.

[0010] The present invention is based on the finding that evaporative cooling is the principal cooling mechanism during high intensity workouts or under hot weather conditions. Radiative cooling, on the other hand, plays a subordinate role.

[0011] The present invention proposes a double layer fabric construction. An outer layer is mainly made of polyethylene terephthalate, a polymer that shows superior moisture management properties (good wicking of sweat I fast evaporation of sweat). When sweat evaporates from this layer, this causes the fabric layer to cool down.

[0012] The inner layer (next to the skin) is made from polyethylene, a material with high thermal conductivity. When the fabric cools down, due to the evaporation of sweat from the outer layer, a temperature gradient is created between the cold outside layer of the fabric and the warmer skin. Because of the high thermal conductivity of polyethylene, more heat from the skin can travel through the inner layer than through a material with lower thermal conductivity. This results in more efficient heat dissipation.

[0013] The present invention thus makes heat dissipation through the fabric more efficient by employing an asymmetric fabric structure, which improves the evaporation of sweat, compared with existing solutions.

[0014] At least 60%, preferably at least 70%, more preferably at least 80%, even more preferably at least 90%, of the first surface can be occupied by polyethylene. At least 60%, preferably at least 70%, more preferably at least 80%, even more preferably at least 90%, of the second surface can be occupied by polyethylene terephthalate. Generally, it is beneficial to have a higher percentage of a respective polymer at a given surface. However, the percentage of polymer depends on several parameters, most importantly the type of fabric (e.g. woven vs. knitted), as will be explained further herein below. But also the presence of additives of other components can influence the percentage of polymer.

[0015] In a particular embodiment of the present invention, the fabric is a multilayer fabric, in particular a double layer fabric. A first layer of the fabric comprises by at least 50 wt.-% of polyethylene, preferably at least 60 wt.-%, more preferably at least 70 wt.-%, even more preferably at least 80 wt.-%, even still more preferably at least 90 wt.-%. A second layer of the fabric comprises by at least 50 wt.-% of polyethylene terephthalate, preferably at least 60 wt.-%, more preferably at least 70 wt.-%, even more preferably at least 80 wt.-%, even still more preferably at least 90 wt.-%.

[0016] The polyethylene and / or the polyethylene terephthalate can be present as at least one yarn, in particular a multifilament yam. The polyethylene yarn and / or the polyethylene terephthalate yam can have a strength of 10-300 Denier, preferably 15-200 Denier, more preferably 20-100 Denier.

[0017] The polyethylene yam and / or the polyethylene terephthalate yam can have a filament count of 1 to 100, preferably 10 to 50. The fabric can have a nominal weight of 50-300 g / m2, preferably 60-250 g / m2, more preferably 70-200 g / m2. Such strengths have proven to provide good wicking properties and a good handfeel. They also result in a lightweight garment, which is generally preferred for sportswear, and show low resistance to water vapor, which will result in a better feeling of breathability of the fabric.

[0018] The polyethylene can have a density of greater than or equal to 0.941 g / cm3Such polyethylene is also referred to as high-density polyethylene (HDPE). In a preferred embodiment, the density can be between 0.95 and 0.96 g / cm3, in particular 0.956 g / cm3. Such kind of polyethylene has a high thermal conductivity.

[0019] Additionally, the polyethylene can have a molecular weight of less than 3 ■ 106g / mol, preferably less than 2 ■ 106g / mol, even more preferably less than 106g / mol. Such kind of polyethylene can be spun more easily into fine yams and is less expensive than those with higher molecular weights. The amount of polyethylene and / or the polyethylene terephthalate in the fabric can be 20-80 wt.-%, preferably 30-70 wt.-%. This creates a good balance of moisture management contributed by polyethylene terephthalate (wicking + evaporation) vs. the thermal conductivity contributed by the polyethylene.

[0020] The fabric can be a plaited fabric. Plated fabrics are fabrics that have different types of face and back. These fabrics are formed by using different kinds of yam on each side, both to be invisible on the other side. Different properties of several textile fibers can thus be exploited to obtain various surface interests and patterns. In other words, plated fabrics are a combination of two separate yarns of different properties, in the present context in particular a polyethylene yam and a polyethylene terephthalate yam.

[0021] Knitted plated fabrics can be produced by an arrangement of needles that do not bring the back yam to the face (also called right side of the fabric) or the face yam to the back. Particular knitting machines known in the prior art allow the selective knitting of separate yams on the face and back to form plated fabrics.

[0022] The fabric can be a knitted, woven or non-woven fabric, preferably a knitted fabric, in particular a plaited single jersey knit or a double knit. The double knit can include interlock and / or rib structures. The double knit can also include a spacer, where either connecting yams or the face or back side are polyethylene. Alternatively, a warp knit can be used, including a double layer jacquard, a tricot, raschel, spacer or lace as well as spacer warp knitted fabrics. Weft insertion of polyethylene yams is also possible. If the fabric is a woven fabric, it can be a satin or twill weave, where the polyethylene yams are either only in the warp or only in the weft. An alternative is double layer weaving, using one or more warps, including spacer or 3D weaving.

[0023] Further alternatives include embroidery and tailored fiber placement.

[0024] The fabric, in particular the at least one yarn, more particularly at least one filament, further can comprise an additive. The additive can be selected from the group consisting of a dyestuff, an ultraviolet (UV) blocking agent, an anti-micro- bial agent, a flame retardant and a filler.

[0025] The dyestuff can be present in form of a pigment.

[0026] The anti-microbial agent can be selected from the group consisting of silver, zinc, copper and other metals.

[0027] The filler can be a nucleating agent selected from the group consisting of BaSCM, CaCOs and clay.

[0028] The ultraviolet (UV) blocking agent can be selected from the group consisting of ZnO, TiO2, BaSCM and one or more organic compounds (e.g. heterocyclic compounds).

[0029] The fabric can further comprise a coating on the first surface and / or the second surface, preferably on the second surface. The coating can be applied by a printing technique, in particular screen printing. The coating can at least partially impregnate the fabric. It has surprisingly been found that heat dissipation through the asymmetric fabric structure is more efficient, if the fabric carries a coating, such as a screen print. Although this effect is currently not fully understood, it is surmised that the coating impregnates the fabric to a certain degree to glue the polyethylene and polyethylene terephthalate yarns together, thus creating larger interface areas between both polymers. This is assumed to increase heat dissipation, as most of the evaporation is happening from the polyethylene terephthalate.

[0030] The coating can comprise a binder, in particular an acrylate binder, preferably based on acrylic acid. Additionally or alternatively, the binder can be selected from the group consisting of polyurethane dispersions, vinyl polymers, epoxy resins and natural or synthetic rubber binders.

[0031] The coating can additionally comprise a pigment. Further additives can be selected from the group consisting of dyestuffs, crosslinking agents, plasticizers, surfactants and dispersants.

[0032] The printing technique may be selected from the group consisting of rotary screen printing, flat-bed screen printing and digital printing.

[0033] Alternatively, a coating technology may be used selected from the group consisting of knife coating, roll coating, padding, screen coating, spray coating, gravure coating and foam coating.

[0034] Other application methods may include but are not limited to exhaustion. Furthermore, the fabric by be subjected to post-processing, such as calendaring (hot and / or cold) and / or steaming.

[0035] Typically, 20-100 % of the surface of the fabric is coated.

[0036] A second aspect of the present invention relates to a garment comprising a fabric as described herein above, in particular a next to skin garment, especially a sportswear (e.g. a shirt, a long sleeve, a pair of shorts, tights or socks). The described fabric may form an entire garment, such as a shirt, or be strategically integrated into garments where extra cooling is needed, such as near the shoulders and / or underarms of a wearer. However, the present invention is by no means limited to applications in apparel and could in principle also find use in footwear (e.g. as a component of the upper part of a shoe), hats, caps, socks, sleeping bags or bedding.

[0037] A third aspect of the present invention relates to a method for manufacturing a fabric as described herein above. The method comprises the steps of: a. Providing at least one first yarn of polyethylene; b. Providing at least one second yarn of polyethylene terephthalate; c. Interlacing the first yarn and the second yam to obtain the fabric. The method may further comprise the step of coating the first surface and / or the second surface of the fabric obtained, preferably the second surface. The coating may be applied by a printing technique, in particular screen printing.

[0038] The material applied may comprise a binder, in particular an acrylate binder, preferably acrylic acid. The material additionally applied may comprise a pigment.

[0039] With regard to further aspects of the coating, reference is made to the above paragraphs referring to the fabric.

[0040] It is to be understood that both the foregoing general description and the following detailed description present embodiments, and are intended to provide an overview or framework for understanding the nature and character of the disclosure. The accompanying drawings are included to provide a further understanding, and are incorporated into and constitute a part of this specification. The drawings illustrate various embodiments, and together with the description serve to explain the principles and operation of the concepts disclosed.

[0041] BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The herein described invention will be more fully understood from the detailed description given herein below and the accompanying drawings which should not be considered limiting to the invention described in the appended claims. The drawings are showing:

[0043] Fig. 1 a-c A schematic representation of the working principle of a fabric according to the present invention; Fig. 2 A knitting process for manufacture of a fabric according to the present invention;

[0044] Fig. 3 A knitting pattern of a fabric according to the present invention;

[0045] Fig. 4 Heating power vs. time curves from the WATson tests described herein below (Series 1 ), for assessing a fabric according to the present invention;

[0046] Fig. 5 A garment according to the present invention from the front side;

[0047] Fig. 6 The garment according to Fig. 5 from the back side;

[0048] Fig. 7 Heating power vs. time curves from the WATson tests described herein below (Series 2), for assessing a fabric according to the present invention;

[0049] Fig. 8 Heating power vs. time curves from the WATson tests described herein below (Series 3), for assessing a fabric according to the present invention;

[0050] Fig. 9 A first printing pattern for a fabric according to the present invention;

[0051] Fig. 10 A second printing pattern for a fabric according to the present invention. DESCRIPTION OF THE EMBODIMENTS

[0052] Reference will now be made in detail to certain embodiments, examples of which are illustrated in the accompanying drawings, in which some, but not all features are shown. Indeed, embodiments disclosed herein may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements. Whenever possible, like reference numbers will be used to refer to like components or parts.

[0053] Figure 1a displays that the working principle of a fabric according to the present invention is based on the sweating of a person wearing a garment made of this fabric. The sweat passes through the first surface 1 , in the present example made of polyethylene, and is taken up by the second surface 2, in the present example made of polyethylene terephthalate. The sweat distributes over the second surface 2, in order to have a higher surface for evaporation. This process is also called “wicking”. Figure 1b shows the actual evaporation of the sweat from the second surface 2, which leads to a cooling of the same. As indicated in Figure 1c, cooling of the second surface 2 leads to a heat transfer from the skin 3 to the second surface 2. This heat transfer is facilitated by the first surface 1 , which shows a high heat conduction.

[0054] As shown in Figure 2, a fabric according to the present invention can be made by knitting, where a yam 4 made of polyethylene is combined with a yam 5 made of polyethylene terephthalate. Figure 3 shows a respective knitting pattern. Figures 5 and 6 show a garment, specifically a T-shirt 6, according to the present invention. The T-shirt 6 comprises a functional zone 7 of a fabric as described herein above. The remaining part of the T-shirt 6 can consist of the same or different fabric. Figures 9 and 10 show printing patterns for printing a fabric according to the present invention. These are usually applied by screen printing.

[0055] WATson Test Samples

[0056] Series 1

[0057] * Comparative Example Series 2

[0058] Series 3

[0059] * Comparative Example

[0060] In Series 3, for printing the fabrics of Samples 14-17, a binder composition was used consisting of methacrylic acid (35-40 wt.-%) and water (60-65 wt.-%). Con- ventional black pigments were added, where required. The printing technique employed was screen printing. The printing patterns were as shown in Figure 9 (Dot Print) or Figure 10 (Full Print). In all cases, the PET-occupied surface of the fabric was printed. All samples were washed once prior to testing.

[0061] In the WATson Tests, the PE-occupied surface of the fabrics was facing inwards toward the Watson measuring plate, unless stated otherwise.

[0062] Measurement Parameters

[0063] Measurement Device: WATson

[0064] Measurement Protocol: Apparel

[0065] The testing was conducted according to DIN SPEC 60015 with the following pa rameters:

[0066] Temperature of the WATson measuring head: Ts = 32°C (89.6°F)

[0067] Area of the WATson measuring head: Aw = 400 cm2(20 x 20 cm) (60.84 in2(7.8 x 7.8 in))

[0068] Ambient climate in the climate chamber: Ta= 30 °C, RHa = 70 % r.h. (86 °F, RHa = 70% r.h.)

[0069] Environmental condition 1 : Wind (light breeze @ 1 m / s) (2.2 mph)

[0070] Environmental condition 2: IR radiation (simulating sunlight @ 13.2 W)

[0071] Sweat rate: 8 g / h

[0072] Sweat glands: 4 (inner glands)

[0073] The temperature of the WATson measuring head is held constant at the set temperature by controlled electrical heating. This electrical heating power is stated as “Pheating" in Watts. So the higher this heating power the higher is the cooling effect i.e. the cooler the fabric is perceived on the skin. All samples were pre-conditioned in the climatic chamber for 12 h under the above mentioned test conditions.

[0074] The procedure of the “Apparel Protocol” was as follows: The samples were put on the WATson measuring head in dry state. Sweating was switched on at t = 10 min for 60 minutes and turned off at t = 70 min. The last step was the drying phase that ran until the samples were in dry condition for 10 minutes (steady state).

[0075] The electrical heating power to maintain the set temperature of the WATson measuring head was recorded. As a link to reality this heating power equates the heat loss of the skin due to evaporation of sweat - which is identical with the heat loss of the fabric - and can be described as the ability to lose evaporative heat when wearing this kind of clothing.

[0076] Results

[0077] Series 1

[0078] * Comparative Example

[0079] ** Average over 3 measurements

[0080] Series 2

[0081] ** Average over 3 measurements Series3

[0082] * Comparative Example

[0083] ** Average over 3 measurements

[0084] Conclusion

[0085] Based on the measurement protocol performed, sports / cooling fabrics should show a steep increase of WATson heating power (i.e. fabric cooling power) after starting sweating, a high WATson heating power (fabric evaporative heat loss / cooling) during sweating and fast drying.

[0086] Series 1

[0087] All samples of Series 1 showed a steep increase of WATson heating power (i.e. fabric cooling power) and a fast drying. Sample 1 (comparative example), only consisting of polyester, showed the lowest WATson heating power. Sample 2 (comparative example), an asymmetric fabric consisting of polyethylene and polyamide demonstarted a slightly increased WATson heating power compared to Sample 1. The highest WATson heating power was achieved with Samples 3 and 4 (according to the present invention), an asymmetric fabric consisting of polyethylene and polyethylene terephthalate. Interestingly, for this fabric, the direction of use was essentially inconsequential. Series 2

[0088] All samples of Series 2 were asymmetric fabrics consisting of polyethylene and polyethylene terephthalate according to the present invention. They all showed a steep increase of WATson heating power (i.e. fabric cooling power) and a fast drying. The fabrics all performed similarly, independent of their color or whether recycled polyethylene terephthalate (rPET) was used.

[0089] Series 3

[0090] Also all samples of Series 3 showed a steep increase of WATson heating power (i.e. fabric cooling power) and a fast drying. Sample 9 (comparative example), consisting of an unprinted fabric of 100 % polyethylene terephthalate, showed a moderate WATson heating power. Samples 10-13 (comparative examples), all fabrics consisting of 100 % polyethylene terephthalate with different kinds of prints on them, showed decreased WATson heating powers. This demonstrates that printing of the fabric generally has a negative effect on evaporative heat loss.

[0091] However, the highest WATson heating powers were achieved with Samples 14- 17 (according to the present invention), all asymmetric fabrics consisting of polyethylene and polyethylene terephthalate with different kinds of prints them. Interestingly, the asymmetric fabrics even over-compensated the negative effect of the printing, with some printed fabrics even showing higher WATson heating powers than unprinted asymmetric ones (e.g. Sample 5 vs. Samples 15 and 17 {white} or Samples 7 and 8 vs. Sample 16 {black}).

[0092] Moisture Absorbency and Drying Time

[0093] Samples

[0094] * Comparative Example Measurement Methods

[0095] Moisture Absorbency: Test according to AATCC TM79, Method A

[0096] Moisture Drying Time: Test according to ISO 17617:2014-12A, Method B (horizontal drying)

[0097] Both measurements were conducted on new fabrics.

[0098] Results

[0099] * Comparative Example

[0100] Conclusion

[0101] Under the described test conditions, Comparative Sample 18 shows longer wetting and drying time than Sample 19, according to the present invention.

[0102] In both fabrics, either the PET or PA mainly take over the moisture management function (wicking + evaporation), as the PE portion is essentially unable to take up water. As apparent, even though in the PET fabric there is more PET in g per square meter than the PA fabric (namely 71 g / m2vs. 62 g / m2), it still dries quicker.

[0103] A quick drying time is good to prevent wet feeling on the skin after the workout. It is also an indicator for high rate of evaporation, resulting in higher cooling power. Water Vapor Resistance Ret

[0104] Measurement Parameters

[0105] Measurement Device: Hohenstein Skin Model

[0106] The testing was conducted according to DIN EN ISO 11092:2014-12Awith the following parameters:

[0107] Test Climate: 35 °C, 40 % r.h.

[0108] Aim of Test: Mean value of 3 single measurements with 3 different specimens per sample.

[0109] Precision of the test: 7 % (variation coefficient)

[0110] Results

[0111] Series 3

[0112] * Comparative Example Conclusion

[0113] The results in the above table show that printing of a fabric leads to an increase in water vapor resistance (Sample 9 vs. Samples 10-17). On the other hand, whether a symmetric or asymmetric fabric is used, appears to be inconsequential on this parameter.

[0114] Buffering Capacity of Liquid Sweat - Buffering Index Kf, Liquid Sweat Transport and Sweat Uptake G2

[0115] For the clothing physiological properties of textiles worn next to the skin, not only their stationary thermophysiological properties are important, but also the capacity to buffer sweat pulses, which are occurring quite frequently with higher physical activity in the practical use of textiles and clothing, and to keep moisture and temperature in the microclimate next to the skin on values allowing a subjective wear comfort.

[0116] With the buffering capacity of liquid sweat Kf, a wear condition is comprehended where the wearer is sweating so heavily that there is liquid sweat on his skin. Under the assumption of a specific climate condition (e.g. 25 °C, 50 % r.h.) from the F1 -value, the amount of liquid sweat F in g can be deduced which can be transported away from the skin by the fabric over an area of 1 m2during 1 hour.

[0117] Measurement Device: Hohenstein Skin Model

[0118] Test conditions: According to SOP-QM 11 .CP.03.041

[0119] Test climate: 35°C; 30 % r.h.

[0120] Aim of test: Mean value of 3 single measurements with 3 different specimens per sample.

[0121] Precision of the test (standard-deviation):

[0122] Buffering index Kr 0.02

[0123] Moisture transport F: 19.4 g / m2h

[0124] Sweat uptake G2: 0.3 g Results

[0125] Series 3

[0126] Conclusion

[0127] If the wearer sweats heavily, a high sweat transport F is particularly important for the wear comfort of textiles. Together with the sweat uptake G2 it determines the textile's buffering capacity of liquid sweat, expressed by the buffering index Kf. Physiologically viewed it is the better, the higher the sweat transport and the more sweat is passed on to the outer textile layers. The textile layer next to the skin should stay as dry as possible.

[0128] For a more differentiated judgment of the buffering capacity against liquid sweat out of experience the following criteria can be applied:

[0129] Kf> 0,95 very good

[0130] 0,95 > Kf> 0,85 good

[0131] 0,85 > Kf> 0,78 satisfactory

[0132] Kf < 0,78 unsatisfactory As apparent, all of Samples 9-17 show a buffering index Kf which can be considered as good. Printing of the fabric does therefore not negatively affect sweat transport. Rather, the words used in the specification are words of description rather than limitation, and it is understood that various changes may be made without departing from the spirit and scope of the invention.

[0133] LIST OF DESIGNATIONS 1 First surface

[0134] 2 Second surface

[0135] 3 Skin

[0136] 4 Yarn made of polyethylene

[0137] 5 Yarn made of polyethylene terephthalate 6 T-shirt

[0138] 7 Functional zone

Claims

CLAIMS1 . A fabric comprising a first surface (1 ) and a second surface (2) opposite to the first surface, wherein at least 50% of the first surface (1 ) is occupied by polyethylene and at least 50% of the second surface (2) is occupied by polyethylene terephthalate.

2. The fabric according to claim 1 , wherein at least 60%, preferably at least 70%, more preferably at least 80%, even more preferably at least 90%, of the first surface (1 ) is occupied by polyethylene.

3. The fabric according to one of claims 1 or 2, wherein at least 60%, preferably at least 70%, more preferably at least 80%, even more preferably at least 90%, of the second surface (2) is occupied by polyethylene terephthalate.

4. The fabric according to one of claims 1 to 3, wherein the polyethylene and / or the polyethylene terephthalate are / is present as at least one yarn, in particular a multifilament yarn.

5. The fabric according to one of claims 1 to 4, wherein the polyethylene yarn and / or the polyethylene terephthalate yam have / has a strength of 10-300 Denier, preferably 15-200 Denier, more preferably 20-100 Denier.

6. The fabric according to one of claims 1 to 5, wherein the fabric has a nominal weight of 50-300 g / m2, preferably 60-250 g / m2, more preferably 70-200 g / m2.

7. The fabric according to one of claims 1 to 6, wherein the polyethylene has a density of greater than or equal to 0.941 g / cm3, preferably between 0.95 and 0.96 g / cm3.

8. The fabric according to one of claims 1 to 7, wherein the amount of polyethylene and / or the polyethylene terephthalate is 20-80 wt.-%, preferably 30- 70 wt.-%.

9. The fabric according to one of claims 1 to 8, wherein the fabric is a plaited fabric.

10. The fabric according to one of claims 1 to 9, wherein the fabric is a knitted, woven or non-woven fabric, preferably a knitted fabric, in particular a plaited single jersey knit or a double knit.11 . The fabric according to one of claims 1 to 10, wherein the fabric, in particular the at least one yam, more particularly at least one filament, further comprises an additive.

12. The fabric according to claim 11 , wherein the additive is selected from the group consisting of a dyestuff, an ultraviolet (UV) blocking agent, an antimicrobial agent, a flame retardant and a filler.

13. The fabric according to one of claims 1 to 12, further comprising a coating on the first surface (1 ) and / or the second surface (2), preferably on the second surface (2).

14. The fabric according to claim 13, wherein the coating is applied by a printing technique, in particular screen printing.

15. The fabric according to one of claims 13 or 14, wherein the coating at least partially impregnates the fabric.

16. The fabric according to one of claims 13 to 15, wherein the coating comprises a binder, in particular an acrylate binder, preferably based on acrylic acid.

17. The fabric according to one of claims 13 to 16, wherein the coating additionally comprises a pigment.

18. A garment comprising a fabric according to one of claims 1 to 16, in particular a next to skin garment, especially a sportswear.

19. A method for manufacturing a fabric according to one of claims 1 to 18, the method comprising the steps of: a. Providing at least one first yarn of polyethylene; b. Providing at least one second yarn of polyethylene terephthalate; c. Interlacing the first yarn and the second yam to obtain the fabric.

20. The method according to claim 19, further comprising the step of coating the first surface (1 ) and / or the second surface (2) of the fabric obtained, preferably the second surface (2).21 . The method according to claim 20, wherein the coating is applied by a print- ing technique, in particular screen printing.

22. The method according to one of claims 20 or 21 , wherein the material applied comprises a binder, in particular an acrylate binder, preferably acrylic acid.

23. The method according to one of claims 20 to 22, wherein the material ap- plied additionally comprises a pigment.

Citation Information

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