CZ36654U1 - Textile composite for producing personal hygiene aids, especially personal hygiene aids for urine collection - Google Patents

Description

In the registration procedure, the Industrial Property Office does not determine whether the subject of the utility model meets the conditions of eligibility for protection according to § 1 of Act. E. 478/1992 Coll.

CZ 36654 UI

Textile composite for the production of personal hygiene aids, especially personal hygiene aids for urine collection

Field of technology

The technical solution relates to a textile composite for the production of personal hygiene aids, especially hygiene aids for urine capture.

Current state of the art

Currently, various products are used as personal hygiene aids for children suffering from nocturnal leakage of urine, or for patients with incontinence, etc., such as diaper panties, special underwear with a layer of absorbent material, special bed mats, etc., with different material composition and construction. Their disadvantage is that the functional part of these products is too bulky to achieve the required absorption capacity and therefore uncomfortable and unaesthetic. Another disadvantage is that these are always products intended for single use, which are therefore quite uneconomical and non-ecological.

In addition, various types of enuretic alarms are also known to deal with nocturnal urine leakage, especially in children; however, these do not solve urine retention in any way - their purpose is to wake the user up at the moment when urine leakage begins.

The goal of the technical solution is to design a textile composite for the production of personal hygiene aids, which, thanks to its design, would be comfortable for normal use, and at the same time it would be possible to use it repeatedly without losing its absorbent properties.

In addition, the goal of the technical solution is also a personal hygiene aid based on this composite.

The essence of the technical solution

The goal of the technical solution is achieved by a textile composite for the production of personal hygiene aids, the essence of which is that it contains an absorbent layer formed by a non-woven fabric with an area weight of 50 to 200 g/m ² , which contains 10 to 20 wt.%. superabsorbent fibers, while on one surface of this absorbent layer there is a reverse layer formed by a non-woven fabric with an area weight of 30 to 80 g/m ² and on the opposite surface of the absorption layer there is an impermeable face layer impermeable to the captured liquid with an area weight of 5 to 30 g/m ² , whereby these layers are connected by lamination by means of bicomponent fibers in the absorption layer and the back layer.

In a preferred version, the reverse layer is formed by a mixture of synthetic fibers with a fineness of 3.3 to 17 dtex and bicomponent fibers with a fineness of 1.7 to 2.2 dtex in a weight ratio of 80 to 95: 20 to 5. Synthetic fibers of the reverse layer are e.g. polyester and/or polypropylene. The bicomponent fibers of the reverse layer are preferably core-sheath fibers formed by a combination of polyester/copolyester and/or polypropylene/polyester. Polyester fibers can be provided with a hydrophilic surface treatment if necessary.

In a preferred version, the absorbent layer is made up of a mixture of superabsorbent fibers (SAF), synthetic fibers with a fineness of 3.3 to 17 dtex, natural fibers with a fineness of 1 to 4 dtex and bicomponent fibers with a fineness of 1.7 to 2.2 dtex in a weight ratio 10 to 20:30 to 50:30 to 40:10 to 30. The synthetic fibers of the absorbent layer are, for example, polyester fibers and/or polypropylene fibers, possibly in combination with viscose fibers. The bicomponent fibers of the absorbent layer are preferably core-sheath type fibers formed by a combination

-1 CZ 36654 UI polyester/copolyester and/or polypropylene/polyester. In a preferred embodiment, bicomponent fibers of the same type are contained in the reverse layer and the absorption layer.

The natural fibers of the absorbent layer are preferably cotton fibers, hemp fibers or bamboo fibers, or a combination of at least two of them.

The facing layer then consists of a non-porous hydrophilic membrane, an impermeable film or a non-woven fabric provided with an impermeable coating, e.g. based on polyurethane.

In addition to this composite, the goal of the technical solution is also achieved by a personal hygiene aid that contains a textile composite according to the technical solution.

Clarification of drawings

In the attached drawing, Fig. 1 shows a schematic cross-section of one variant of a textile composite for the production of personal hygiene aids according to the technical solution, and Fig. 2A shows an exemplary variant of a personal hygiene aid - boys' underwear containing a replaceable insert made of this composite from the front, and Fig. 2B shows an A-A section of this underwear.

Examples of implementing a technical solution

The basis of the textile composite 1 for the production of personal hygiene aids according to the technical solution is a trio of layers 2, 3, 4 connected to each other by lamination, formed from top to bottom by reverse layer 2, absorption layer 3 and face layer 4 - see Fig. 1.

The reverse layer 2, which is oriented towards the user when using the textile composite 1, is made of a non-woven fabric with an area weight of 30 to 80 g/m ² , preferably, for example, a transversely laid carded fleece, which is strengthened by thermal bonding. In a preferred embodiment, the reverse layer 2 is formed by a mixture of synthetic fibers with a fineness of 3.3 to 17 dtex and bicomponent fibers with a fineness of 1.7 to 2.2 dtex in a weight ratio of 80 to 95: 20 to 5. A suitable material of synthetic fibers for the reverse layer 2 is mainly polyester or polypropylene, etc. or a mixture thereof; a suitable variant of bicomponent fibers are bicomponent fibers of the core-sheath type consisting of a combination of polyester/copolyester or polypropylene/polyester, or their mixture. If necessary, the fibers of the reverse layer 2, especially polyester, can be provided with a hydrophilic surface treatment.

The reverse layer 2 is designed to capture and quickly remove moisture away from the user's body into the absorption layer 3 of the composite 1 and distribute it over the entire surface of the absorption layer 3.

The absorption layer 3 is formed by a non-woven fabric with a surface weight of 50 to 200 g/m ² , preferably, for example, transversely laid carded fleece strengthened by thermal bonding. The absorbent layer contains 10 to 20% mass, so-called superabsorbent fibers (SAF). Superabsorbent fibers are made of polymers that have a significant ability to absorb liquids and increase their weight and volume several times by swelling. Individual molecules of these polymers are connected to molecules of other compounds by means of cross-linkers into spatial networks. At the same time, the liquid is fixed in these networks by strong hydrogen bonds and cannot be released back even when compressed. E.g. when absorbing urine, superabsorbent fibers are able to absorb up to 50 times their own weight. At the same time, these fibers retain their fibrous character and are able to absorb the trapped liquid repeatedly after drying. Most superabsorbent polymers are polymers based on polyacrylic acid, or mixture of polyacrylic acid and sodium hydroxide. Superabsorbent fibers typically have a fineness of 1 to 10 dtex.

-2 CZ 36654 UI

In a preferred embodiment, the absorbent layer 3 consists of a mixture of superabsorbent fibers, synthetic fibers with a fineness of 3.3 to 17 dtex, natural fibers with a fineness of 1 to 4 dtex and bicomponent fibers with a fineness of 1.7 to 2.2 dtex in a weight ratio of 10 to 20: 30 to 50: 30 to 40: 10 to 30. Polyester fibers and/or polypropylene fibers can be used as synthetic fibers, preferably in combination with viscose fibers (up to 40% by weight); bicomponent fibers can be used, for example, core-sheath bicomponent fibers formed by a combination of polyester/copolyester or polypropylene/polyester, or their mixture; natural fibers can be cotton fibers, hemp fibers or bamboo fibers, etc. or any combination of at least two types of natural fibers. Natural fibers are an advantageous, but not necessary part of the absorbent layer 3.

In a preferred embodiment, bicomponent fibers of the same type are contained in the back layer 2 and the absorption layer 3.

The absorbent layer 3 is designed to retain and store liquid, e.g. urine. At the same time, its superabsorbent fibers retain this liquid in its structure and at the same time prevent its rapid evaporation and thus the formation and release of odors.

Synthetic fibers, bi-component fibers and possibly natural fibers of the absorbent layer 3 form a so-called structural network in which the superabsorbent fibers are evenly distributed and anchored. Thanks to this, the absorbent layer 3 retains its textile character when in contact with liquid - this arrangement prevents the clumping and joining of superabsorbent fibers into non-fibrous formations.

Viscose fibers and natural fibers, if used, then increase the absorbency of the absorbent layer 3 and help retain liquid in its internal structure.

The face layer 4 placed on the opposite surface of the absorption layer 3 than the reverse layer 2 is made of a material impermeable to the captured liquid, and its function is to prevent the liquid trapped in the absorption layer 3 from escaping outside the composite L. The face layer 4 is made up of either a non-porous hydrophilic membrane, e.g. based on polyurethane, an impermeable film, e.g. based on polyethylene, or a non-woven fabric, preferably e.g. of the spunbond type, consisting of e.g. polyester and/or polypropylene fibers, provided with an impermeable coating e.g. based on polyurethane. The surface weight of the outer layer 4 is 5 to 30 g/m ² .

All three layers 2, 3, 4 of composite 1 according to the technical solution are connected by lamination, which takes place, depending on the type of bicomponent fibers in the back layer 2 and absorption layer 3, at a temperature of 120 to 140 °C, either spontaneously - by hot air bonding or pressing under increased pressure. During pressing, a pressure of 5 to 20 N/cm ² is applied. In addition to connecting layers 2, 3, 4 of composite 1, the binder component of bicomponent fibers also connects the fibers in the structure of the reverse layer 2 and the absorbent layer 3 and thereby strengthens these layers 2, 3 internally and, in the case of the absorbent layer 3, simultaneously anchors the superabsorbent fibers in its structure.

If necessary, it is possible to increase the resistance of the connection of the reverse layer 2 and the absorption layer 3 by additional needling or stitching, either in their entire surface or only in part of their surface, or around the perimeter.

If necessary, it is possible to connect layers 2, 3, 4 of composite 1 around the perimeter to increase its resistance by sewing, preferably with cotton thread or other suitable technology.

The composite ]_ according to the technical solution reaches a surface weight of 100 to 300 g/m ² at a thickness of 3 to 6 mm. At the same time, it is able to absorb 1.5 to 4 liters of liquid per 1 m ² . These parameters ensure high comfort of its use. Due to the fact that Composite 1 is composed of a mixture of superabsorbent fibers and other types of fibers, it is capable of being reused in up to five cycles.

CZ 36654 UI

Textile composite 1 according to the technical solution can be used for the preparation of a number of different hygiene aids, such as baby diapers, incontinence aids, e.g. in the form of underwear, various absorbent aids (e.g. absorbent bed pads, etc.), feminine hygiene products, etc. At the same time, the part formed by this composite 1 can be stored in this tool 5 firmly or with the possibility of removal and replacement.

Figs. 2A and 2B show an exemplary variant of a boy's underwear for a user suffering from nocturnal enuresis, which includes a replaceable absorbent pad 7 formed from this composite 1, and a section of this underwear. In its structure, the underwear in the crotch ίο is provided with an internal pocket 6 in which an absorbent insert 7 made of composite 1 according to the technical solution is removably stored. The upper edge and the legs are preferably equipped with textile elastics. The entrance to the inner pocket 6 can be located outside or inside the underwear as needed.

Claims (11)

PROTECTION CLAIMS 1. Textile composite (1) for the production of personal hygiene aids, characterized in that it contains an absorbent layer (3) formed by a non-woven fabric with an area weight of 50 to 200 g/m ² , which contains 10 to 20% by mass of superabsorbent fibers, while on one surface of this absorbent layer (3) is placed a reverse layer (2) consisting of a non-woven fabric with an area weight of 30 to 80 g/m ² and on the opposite surface of the absorbent layer (3) is placed a face layer (4) impermeable to the captured liquid with with an area weight of 5 to 30 g/m ² , while the reverse layer (2), the absorbent layer (3) and the front layer (4) are connected by lamination by means of bicomponent fibers in the absorbent layer (3) and the reverse layer (2). 2. Textile composite (1) according to claim 1, characterized in that the reverse layer (2) is formed by a mixture of synthetic fibers with a fineness of 3.3 to 17 dtex and bicomponent fibers with a fineness of 1.7 to 2.2 dtex, while the ratio of these fibers is 80 to 95 : 20 to 5. 3. Textile composite (1) according to claim 2, characterized in that the synthetic fibers of the reverse layer (2) are polyester and/or polypropylene fibers. 4. Textile composite (1) according to claim 2, characterized in that the bicomponent fibers of the reverse layer (2) are bicomponent fibers of the core-sheath type formed by a combination of polyester/copolyester and/or polypropylene/polyester. 5. Textile composite (1) according to claim 2 or 3, characterized in that the polyester fibers of the reverse layer (2) are provided with a hydrophilic surface treatment. 6. Textile composite (1) according to claim 1, characterized in that the absorbent layer (3) is formed by a mixture of superabsorbent fibers (SAF), synthetic fibers with a fineness of 3.3 to 17 dtex, natural fibers with a fineness of 1 to 4 dtex and bicomponent fibers with a fineness of 1.7 to 2.2 dtex in a weight ratio of 10 to 20 : 30 to 50 : 30 to 40 : 10 to 30. 7. Textile composite (1) according to claim 6, characterized in that the synthetic fibers of the absorbent layer (3) are polyester fibers and/or polypropylene fibers. 8. Textile composite (1) according to claim 6, characterized in that the absorbent layer (3) is formed by a mixture of polyester fibers and/or polypropylene fibers and viscose fibers. 9. Textile composite (1) according to claim 6, characterized in that the bicomponent fibers of the absorbent layer (3) are core-sheath type fibers formed by a combination of polyester/copolyester and/or polypropylene/polyester. 10. Textile composite (1) according to claim 6, characterized in that the natural fibers of the absorbent (3) layer are cotton fibers, hemp fibers or bamboo fibers, or a combination of at least two of them. 11. Textile composite (1) according to claim 1, characterized in that the facing layer (4) is formed by a non-porous hydrophilic membrane, an impermeable foil or a non-woven fabric provided with an impermeable coating.