EP3082674A1

EP3082674A1 - Textile for sportswear having improved properties

Info

Publication number: EP3082674A1
Application number: EP14828021.7A
Authority: EP
Inventors: Yvonne NEUMANN; Katja Warnke; Anja Eitrich; Juliane Schade
Original assignee: Beiersdorf AG
Current assignee: Beiersdorf AG
Priority date: 2013-12-18
Filing date: 2014-12-17
Publication date: 2016-10-26
Also published as: WO2015091599A1; WO2015091608A1; EP3082673A1

Abstract

A textile for the production of sportswear, said textile being loaded with breakable microcapsules made of polyurethane, wherein the textile is a knitted fabric made of a nylon-elastane mixture, and the microcapsules are designed in such a way that they break as a result of the application of mechanical force and release their contents in the textile, the contents comprising a skin care composition, characterized in that the microcapsules have a tensile stress at break of 50 to 150 µN and a diameter of 5 to 15 µm.

Description

TEXTILE FOR SPORTS CLOTHING WITH IMPROVED PROPERTIES

FIELD OF THE INVENTION

The invention relates to textiles for the production of sportswear with improved properties, in particular with improved sun protection, improved comfort and with skin care properties. The production of sportswear with improved properties is also part of the present invention. STATE OF THE ART

Textiles that are particularly suitable for sportswear, are known.

In particular, clothing for the pursuit of recreational sports in the fresh air should provide the wearer with sunscreen, since during sports activity applied to the skin sunscreen creams, lotions, gels or the like can cope with friction or sweating and so your protection against UV radiation of sunlight can not or only insufficiently unfold.

US 2013/0209744 A1 discloses a composite textile of at least three layers, consisting of an outer elastane layer, a middle foam layer and an inner artificial leather or nylon layer. The manufacturing process is complicated and the resulting composite textile heavy and not suitable for sportswear.

Furthermore, sportswear becomes sportier when exercising

Activity slightly moist due to perspiration. For the comfort of close-up worn textiles, it is crucial to what extent they retain their heat-insulating effect even if they have become moist due to heavy sweating of the wearer on the body. Textiles, which fall in this case very strong and long-lasting in their heat insulation, lead after physical exertion to a local hypothermia, which can be perceived by the wearer not only as unpleasant, but may also be harmful to health under certain circumstances.

Furthermore, textiles are known which can have positive effects on the skin by releasing skin-care active ingredients.

DE 20 2013 005 558 U1 discloses a saturated with an active elastic sock. Here, the impregnation by dipping, spraying or Roll up done. It is applied by simply wearing the sock an active ingredient on the foot.

WO 2010/006442 A1 discloses loaded with microparticles

Textiles, wherein the microparticles consist of an organic vehicle impregnated with an active substance and a surface agent and a binder. When rubbed, the microparticles erode and release the active ingredient gradually.

[009] WO 2005/005712 A2 discloses compositions for the application of microcapsules containing active ingredients to textiles. In the process, the active ingredients are gradually released when the textiles are worn by diffusing through the shells of the microcapsules.

[010] DE 20 2007 013 384 U1 discloses laundry and

Corsetry with microcapsules containing different amounts of skin-tightening active substance "glued" to the microcapsules to break open during movement and heat and release the active ingredient.

[011] It is an object of the present invention to provide textiles for

To provide sportswear that provide good UV protection at the same time that maintain their heat-insulating effect in the wet state, or dehydrate quickly, and from which active ingredients can be released over a long time and reliable.

BRIEF DESCRIPTION OF THE INVENTION

[012] In one aspect, the invention provides a textile loaded with fragile microcapsules of polyurethane, wherein the textile is a nylon-elastane blend knitwear, and the microcapsules are designed to break under mechanical force and release their content in the fabric, and wherein the content of the microcapsules comprises a skin care composition. The microcapsules preferably have a breaking stress between 50 and 150 μΝ, and a diameter between 5 and 15 μηη.

The invention is based on the idea that with the above composition of knitwear, on the one hand, good protection against UV or sunlight is obtained, and at the same time the wearing comfort is increased by a short drying time and associated low loss of heat insulation. At the same time with the microcapsules described above, a long-term and uniform action of Skin care composition achieved. This allows a particularly effective action on and in the skin and the skin sustainably improved. Due to the nature of the microcapsules in fracture stress and diameter in the areas according to the invention is advantageously and surprisingly achieved that the active ingredient over many wearing and washing operations remains available and is released only gradually when worn to the skin. This allows a long use of the textile according to the invention. The above-described microcapsules according to the invention advantageously enable a stable release rate of the active ingredient, so that the release of the active ingredient can be relatively well established and adequately dosed over a period of time and, above all, evenly distributed. Advantageously, skin care is provided by wearing apparel made from a textile loaded with microcapsules according to embodiments of the present invention containing a skin care composition. Preferably, the content of the microcapsules is lipophilic.

[014] In a preferred embodiment, the

Microcapsules as active substance at least one of the following: Aloe Vera (CAS 85507-69-3) and / or almond oil (CAS 8007-69-0). Advantageously, a particularly good skin care is achieved by the permanent action of aloe vera and / or almond oil achieved by the microcapsules according to the invention.

The content of aloe vera is preferably from 0.1 to

100 μg / cm ² textile, for example from 0.1 to 10 μg / cm ² textile. The content of almond oil is preferably from 0.1 to 500 μg / cm ^{2 of} textile, for example from 1 to 100 μg / cm ^{2 of} textile. In these content ranges of the different ingredients, a particularly good skin care has been shown, but the invention is not limited to these ranges.

In a preferred embodiment, the

Skin care composition of at least one triglyceride. Advantageously, it is achieved that the skin care active ingredients can dissolve particularly well and can penetrate into the skin. The one or more triglycerides may be selected from caprylic and / or capric acid derived triglycerides, such as CAS number 65381 -09-1 / 73398-61 -5.

In a preferred embodiment, the textile according to the invention contains from 15 to 25% by weight of elastane. In a further preferred embodiment, the textile according to the invention contains from 75 to 85% by weight of nylon. Advantageously, a particularly comfortable carrying is possible. Furthermore, such a mixture supports a mechanical tightening of the skin.

In a preferred embodiment, the textile according to the invention has a basis weight of 150 to 250 g / m ² . The advantage of this is that at such basis weights of the UV protection is pronounced, while at the same time wearing is comfortable to exercise, and the textile is given a sufficiently short drying time to ensure comfort.

In a preferred embodiment, the textile of the invention has an Ultraviolet Protection Factor (UPF) of 40 or greater. As a result, the skin covered by the textile during sports is accordingly

Protected against UV radiation.

In a preferred embodiment, the textile according to the invention has a drying time according to BPI 1.3: 2009-01 of 30 minutes or less. The short drying time ensures that during sports the sportswear produced from the textile does not lose its heat-insulating or only slightly. This ensures comfort and possible health restrictions by cooling the skin during exercise are avoided.

In another aspect, the invention relates to

Sportswear and other articles made of the textile according to the invention. In particular, aspects of the present invention relate to elastic sports apparel made of a textile that can exert compression on the skin when worn.

In a further aspect, the invention relates to a

Use of a textile and / or sportswear made of the textile of the invention for improving UV protection, cold protection and / or appearance of the skin.

The above-described embodiments may be arbitrarily combined with each other and with the aspects described above to achieve advantages of the present invention.

BRIEF DESCRIPTION OF THE FIGURES

[024] The invention will now be described by way of example with reference to preferred embodiments thereof with reference to the attached figures. [025] It shows:

Fig. 1 is an electron micrograph of an inventive with

Microcapsules of loaded textile;

Fig. 2 is an electron micrograph of an inventive with

Microcapsules laden textile after 30 washes;

Fig. 3 is an electron micrograph of an intact microcapsule on a textile according to the invention; and

Fig. 4 is an electron micrograph of a broken microcapsule on a textile according to the invention after release of the contents.

DETAILED DESCRIPTION OF THE INVENTION

According to the present invention, textiles are provided which provide UV protection of the skin, increase wearing comfort and release active ingredients.

[027] According to the invention, the textiles can have an elastane content of

15% to 25%, for example from 18 to 22%, such as about 20%. According to the invention, the textiles may have a nylon content of 75% to 85%, for example from 78 to 82%, such as about 80%. In some embodiments, other fibrous materials such as natural or synthetic fibers may be present in small amounts without significantly affecting the properties of the product.

In one embodiment, the inventive

Textiles have a basis weight of 150 to 250 g / m ² . Depending on the requirements, heavier textiles may have improved UV protection properties, while lighter textiles may have improved drying times. The textiles of the invention may have a basis weight of 160 to 240 g / m ² , for example from 180 to 220 g / m ² , such as about 190 g / m ² or about 200 g / m ² .

In one embodiment, the textiles of the invention may have an Ultraviolet Protection Factor (UPF) of 40 or greater. As described herein, the UPF is measured according to UV Standard 810. In one embodiment, the UPF may be equal to 50 or higher, or 60 or higher, such as about 70 or about 80.

In one embodiment, the textiles of the invention may have a drying time of 30 minutes or less. The drying time is calculated according to BPI 1.3: 2009-01, as of the Germans Accreditation Body GmbH, and as described on https://www.vumpu.com/de/document/view/9451551/deutsche-akkreditierungsstelle- gmbh-anlaqe-zum-dakks / 15. The low drying time improves wearing comfort, as it prevents sweating during sweating. Accordingly, according to the present invention, the drying time of BPI 1 .3: 2009-01 in embodiments may be 25 minutes or less, such as 22 minutes or less, for example, about 21 minutes or about 18 minutes. This can be partially made possible by the fact that the textiles according to the invention have a low water retention capacity. At the same time, the wearing comfort can be further improved by improving the heat insulation of the wet textile.

[031] Furthermore, the textiles with drug-releasing

Loaded microcapsules of polyurethane. Fig. 1 shows an electron micrograph of a textile according to the invention, in which the microcapsules are clearly visible.

Preferably, the microcapsules are made of polyurethane prepared by polymerizing toluene-2,4-diisocyanate with polyols. The preparation process may be designed to obtain polyurethane microcapsules having a diameter of 5 to 15 μm and a fracture stress between 50 and 150 μΝ. The preparation of the microcapsules and their loading with ingredients and the application to textile are known to the person skilled in the art. For example, the microcapsules are applied as an aqueous emulsion together with a second polyurethane as a binder to the textile, whereby the binder covalently binds to the microcapsules and the textile fibers, and thus charges the microcapsules on the textile. In such an emulsion are, for example, 20 to 30 wt .-% of caprylic and / or capric acid derived triglycerides, 1 to 6 wt .-% of an active ingredient combination, and water, polymer and preservative. 3 and 4 show a microcapsule present in the textile according to the invention before and after its breakage.

The breaking strength of the microcapsules can be measured by axisymmetric deformation using optical microscopy. The mechanical deformation is carried out with a Nanolndenter on an atomic force microscope. Test head is a spherical sapphire whose size (800 μηη in diameter) allows a quasi-planar contact surface with the much smaller capsules (diameter, for example, 1 1 μηη). The microcapsules themselves are immobilized on a transparent glass slide. [034] Preferably, the capsule contents include almond oil and aloe vera.

The aloe vera content may preferably be between 0.1 and 1% by weight and the almond oil content may preferably be between 1 and 5% by weight.

[035] The microcapsules further contain a skin care composition, such as one or more triglycerides, such as triglycerides derived from caprylic and / or capric acid (CAS Nos. 538-23-8 / 65381 -09-1 / 73398-61- 5). Other skin care components known to those skilled in the art, such as coenzyme ubiquinone, avocado oil, dexpanthenol, glyceryl-glucose, cucumis sativus juice, tocophenol, tocopheryl acetate, corn oil, jojoba oil or mixtures thereof, may be included in the microcapsules.

It has been shown that 15 to 25% of the starting concentration active ingredients can be released from the textile by wearing 6 to 8 hours wearing skin-fitting sportswear from the textile according to the invention. By transferring to the skin, for example, the content of triglycerides derived from caprylic acid and / or capric acid can be increased by 200% to 300%.

[037] Furthermore, it has been shown that the release of the in the

Microcapsules containing active ingredients also after hand or machine washing of a garment made from the textile according to the invention stops. In particular, as shown in Table I, even after 25 to 30 washes, a release of almond oil could still be detected.

TABLE I

The data shown in Table I relate to text samples of embodiments according to the invention having an initial content of almond oil of 5 μg / cm ^{2 of} textile. The samples had an average weight of 1.80 g at one Size of about 50 cm ² (Karl Schröder KG) and were washed in a commercial washing machine with commercial detergent with standard washes and then extracted with acetone, centrifuged and analyzed by HPLC-MS / MS. FIG. 2 shows a corresponding electron microscope photograph of a textile loaded with microcapsules according to the invention after 30 washes, wherein the active substance remaining on the textile can be recognized.

Preferred embodiments of the present invention relate to sportswear and other textile articles for use on the skin for improving skin elasticity, as well as for protection against UV radiation and cooling of the skin. These garments or articles may consist of the above-described inventive fabric, such as a nylon / spandex blend, for example having a nylon content of about 75 to 85% and an elastane content of about 15 to 25%, such as a nylon content of about 78% and an elastane content of about 22%, or a nylon content of about 80% and an elastane content of about 20%, or a nylon content of about 82% and an elastane Share of about 18%.

[040] Possible items of clothing from the invention

Textile includes trousers, long and short panties, briefs, panties, singlets, camisoles, sports bras, tops, bodysuits, bathing suits and pants, sports jerseys, biker pants, leotards, muscle shirts, socks, stockings, tights, leggings, leggings, T-shirts Shirts, thermal shirts, thermal underwear, corsetry, armwarmers, leg warmers, leg warmers, leggings, leggings, pajamas, corsets, sleeping masks, face masks, gloves and the like. Other textile articles of the textile according to the invention include dressings, support bandages, protective bandages, envelopes, bandages, support bandages, sweatbands and diaper wraps.

By using the active substance-releasing textile according to the invention additional effects can be achieved, for example if the released active ingredients contain a skin care component and / or Q-10 and / or almond oil and / or aloe vera and / or menthol. In addition, depending on the desired additional effects, the following active ingredients may be present in the capsules alone or in combination: vitamin C, caffeine, carnitine, carotene, avocado oil, dexpanthenol, glyceryl-glucose, Cucumis sativus juice, tocopherol, tocopheryl acetate, corn oil, jojoba oil. Furthermore, in the capsules fragrances, flavorings or

Perfumes are present. These may be selected from the group methyl dihydrojasmonate, phenethyl alcohol, linalyl acetate, 1, 3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopenta-gamma-2-benzopyran, methyl cedryl ketone, hexyl salicylate , 4-t-butylcyclohexyl acetate, tetrahydrolinalool, orange terpene, heliotropin, terpinyl acetate, omega-pentadecalactone, methyl-alpha-ionone, lavandin oil, lemon oil, 7-acetyl-1,1,1,4,4,6-hexamethyltetralin, coumarin, Amyl salicylate, 2-tert-pentylcyclohexyl acetate, 3-methyl-5-phenyl-1-pentanol, cedrole, benzyl benzoate, cashmeran, hexyl cinnamaldehyde, butylphenyl methyl propional, 4- (4-hydroxy-4-methylpentyl) -3-cyclohexene-1-carboxaldehyde, Benzyl salicylate, hydroxycitronellal, amyl cinnamal, limonene, benzyl alcohol, eugenol, isoeugenol, cinnamyl alcohol, farnesol, cinnamaldehyde, anisalcohol, Evernia prunastri (extract), benzyl cinnamate, methyl 2-octynoate, amyl cinnamyl alcohol, evernia furfuracea (extract), linalool, 2, 6-dimethyl-7-octene-2-ol, dipropylene glycol, decanal, ethylvanilin, 2-acetone-1-pentane, 2,3 , 4,5,6,7,8-octahydro-2,3,8,8-tetramethyl, butylphenylmethylpropional, benzyl acetate, ethylene brassylate, orange oil, alpha-isomethylionone, patchouli oil, geraniol, citronellol, heliotropin, bergamot oil, ethyllinalool, vanillin, 2 isobutyl-4-hydroxy-4-methyltetrahydropyran, terpineol, lavender oil, citral, cis-3-hexenol, anisaldehyde, nerol, triethyl citrate, 3- (4-tert-butylphenyl) propanal, vetiver essential oil, geranium oil, 2-ethyl 4- (2 ', 2', 3'-trimethylcyclopent-3'-enyl) but-2-enol,

2- (2'-methylpropyl) -4-hydroxy-4-methyltetrahydropyran, 3-hexenylacetate, rose oxide, ambroxan, bourgeonal, silvial, cyclemax, florhydral, floralozone, hydratropic aldehydes, methyl N-methylanthranilate, styrax, celestolide, phantolide, tontalide , Traseolide, HHCB (galaxolide), camphor, eucalyptol, cyclamenaldehyde, adipic diester, alpha-amylcinnamaldehyde, alpha-methylionone, benzoin, hydroxy

3-cyclohexene carboxaldehyde, methyl benzoate, nutmeg oil, rosemary oil.

The garments or textile articles may according to the invention be wholly or partly made of the textile according to the invention.

EXAMPLES

[044] For the following series of experiments were three different

Text samples used. Samples A and B are used in the embodiments, while sample C is used in the comparative examples. The properties of samples A, B and C are shown in Table II: TABLE II

drying time

Samples A, B and C were according to the standard test procedure

BPI 1.3-2009-01 tested for drying time (At). A thermoregulatory model of the human skin was used as a test device, with a test climate of temperature (T _a ) = 20 ° C, and a relative humidity (cp _a ) = 65%. In addition, water retention (AG) and heat insulation of the wet textile (Ret ^* ) were measured. The results shown in Table III are averages of three different measurements for samples A, B and C.

TABLE III

The samples A and B according to the invention show consistently improved properties over comparison sample C for drying time and water retention, without the heat insulation of the wet textile being significantly impaired. Sample A absorbs only very little water, whereby the drying time on the body is very short. Samples A and B have a drying time of 21 minutes or less, while sample C has by far the highest water retention, and a drying time that is more than twice as long as in samples A and B according to the invention.

UV protection

[047] The UPF for samples A, B and C was measured under different practical conditions, the load during use and care Do we have a more precise indication of the composition? consider. The measurements were carried out according to UV Standard 801. The different test conditions are set forth in Table IV.

TABLE IV

The results of samples A, B and C under the different practical conditions are listed in Table V. The results concern average values from three different measurements for samples A, B and C.

TABLE V

[049] It turns out that Samples A and B consistently achieve the best values for the UPF. Furthermore, it should be emphasized that the results for the samples according to the invention are largely independent of whether the sample was moistened or not, in contrast to comparison sample C.

[050] In addition, part of the present innovation are any

Combinations of features and / or demarcations described herein, insofar as they are not mutually exclusive. The description of the invention relates to certain embodiments of the invention with the aim of illustrating them. The person skilled in the art will recognize that further modifications and equivalents of the embodiments described herein are possible. Such modifications and equivalents also form part of the full scope of the invention described.

Claims

P A T E N T A N S P R E C H E

Textile for the production of sports clothing loaded with fragile microcapsules of polyurethane, wherein

the textile is a knitwear made of a nylon-elastane mixture, and

the microcapsules are such that they break under mechanical force and release their content in the textile, the content comprising a skin care composition,

characterized in that the microcapsules have a breaking stress of 50 to 150 μΝ and a diameter of 5 to 15 μηη.

The textile according to claim 1, wherein the content of the microcapsules is lipophilic.

The textile according to claim 1 or 2, wherein the content of the microcapsules comprises aloe vera and / or almond oil.

The textile according to claim 3, wherein the amount of almond oil is from 0.1 to 500 μg / cm ^{2 of} textile and / or the amount of aloe vera is from 0.1 to 100 μg / cm ^{2 of} textile.

A textile according to any one of the preceding claims, wherein the skin care composition comprises one or more triglycerides.

The textile according to claim 5, wherein the triglycerides are selected from triglycerides derived from caprylic acid and / or capric acid, such as CAS number 65381 -09-1 / 73398-61 -5.

A textile according to any one of the preceding claims, having an elastane content of 15 to 25% by weight and / or a nylon content of 75 to 85% by weight.

Textile according to any one of the preceding claims, having a weight of 150 to 250 g / m ² .

A textile according to any one of the preceding claims having an Ultraviolet Protection Factor according to UV Standard 801 of 40 or greater. A textile according to any one of the preceding claims, wherein the textile has a drying time according to BPI 1: 3: 2009-01 of 30 minutes or less.

Sportswear made of a textile according to any one of claims 1 to 10.

Use of a textile or sportswear of any of the preceding claims for improving UV protection, cold protection and / or appearance of the skin.