CZ34674U1 - Textile composite with antibacterial effect and hygienic absorbent device containing this composite - Google Patents
Textile composite with antibacterial effect and hygienic absorbent device containing this composite Download PDFInfo
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- CZ34674U1 CZ34674U1 CZ2020-38245U CZ202038245U CZ34674U1 CZ 34674 U1 CZ34674 U1 CZ 34674U1 CZ 202038245 U CZ202038245 U CZ 202038245U CZ 34674 U1 CZ34674 U1 CZ 34674U1
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/728—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/51113—Topsheet, i.e. the permeable cover or layer facing the skin comprising an additive, e.g. lotion or odour control
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/5116—Topsheet, i.e. the permeable cover or layer facing the skin being formed of multiple layers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
- B32B5/265—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary characterised by one fibrous or filamentary layer being a non-woven fabric layer
- B32B5/266—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary characterised by one fibrous or filamentary layer being a non-woven fabric layer next to one or more non-woven fabric layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4282—Addition polymers
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4282—Addition polymers
- D04H1/4318—Fluorine series
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/4334—Polyamides
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4374—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/5116—Topsheet, i.e. the permeable cover or layer facing the skin being formed of multiple layers
- A61F2013/51178—Topsheet, i.e. the permeable cover or layer facing the skin being formed of multiple layers with the combination of nonwoven webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0253—Polyolefin fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0261—Polyamide fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2555/00—Personal care
- B32B2555/02—Diapers or napkins
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Epidemiology (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Materials Engineering (AREA)
- Nanotechnology (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Composite Materials (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Hematology (AREA)
- Laminated Bodies (AREA)
- Nonwoven Fabrics (AREA)
Description
Textilní kompozit s antibakteriálním účinkem a hygienická absorpční pomůcka obsahující tento kompozitTextile composite with antibacterial effect and hygienic absorbent device containing this composite
Oblast technikyField of technology
Technické řešení se týká textilního kompozitu s antibakteriálním účinkem.The technical solution concerns a textile composite with an antibacterial effect.
Technické řešení se dále týká také hygienické absorpční pomůcky, zejména pleny pro děti nebo dospělé, která obsahuje tento kompozit.The technical solution also relates to a hygienic absorbent device, in particular a diaper for children or adults, which contains this composite.
Dosavadní stav technikyPrior art
Nežádoucím průvodním jevem při dlouhodobém používání stávajících hygienických absorpčních pomůcek, jako např. dětských plen nebo pomůcek určených k řešení inkontinence u dospělých, je iritativní dermatitida, známá také jako plenková dermatitida. Její příčinou je zejména kontakt pokožky s močí nebo stolicí v kombinaci s lokálním zvýšením teploty pokožky a jejím pocením v prostředí uzavřeném neprodyšnou plenou. Tímto způsobem zvlhčená a znečištěná pokožka je náchylnější k poškození mechanickým třením a oděrem. Prostředí pleny, resp. absorpční pomůcky současně podporuje růst některých mikroorganismů obsažených v lidském trávicím traktu, v moči nebo stolici, které mohou vyvolat druhotnou bakteriální nebo kvasinkovou infekci narušené pokožky.An irritative dermatitis, also known as diaper dermatitis, is an undesirable side effect of long-term use of existing hygienic absorbent devices, such as baby diapers or adult incontinence devices. It is mainly caused by skin contact with urine or stool in combination with a local increase in skin temperature and sweating in an environment closed by an airtight diaper. In this way, moisturized and dirty skin is more susceptible to damage by mechanical friction and abrasion. The environment of the diaper, resp. At the same time, it promotes the growth of certain microorganisms contained in the human digestive tract, urine or stool, which can cause secondary bacterial or yeast infection of the disrupted skin.
V současné době neexistuje vhodný materiál, který by hygienickým absorpčním pomůckám poskytoval dostatečné antibakteriální vlastnosti, a přitom nebránil pohybu kapaliny do jejich absorpční vrstvy, a který by se tak dal využít jako jejich součást snižující nebezpečí vzniku iritativní dermatitidy, případně jiných dermatologických defektů a kožních problémů, a jejich komplikací bakteriální nebo kvasinkovou infekcí.At present, there is no suitable material that would provide hygienic absorbent devices with sufficient antibacterial properties, while not preventing the movement of liquid into their absorbent layer, and which could be used as part of them reducing the risk of irritant dermatitis or other dermatological defects and skin problems. , and their complications by bacterial or yeast infections.
Cílem technického řešení je navrhnout takový materiál.The aim of the technical solution is to design such a material.
Kromě toho je cílem technického řešení také navrhnout hygienickou absorpční pomůcku, která obsahuje tento materiál.In addition, the aim of the technical solution is also to design a hygienic absorbent device which contains this material.
Podstata technického řešeníThe essence of the technical solution
Cíle technického řešení se dosáhne textilním kompozitem s antibakteriálním účinkem, jehož podstata spočívá v tom, že obsahuje nosnou textilní vrstvu s plošnou hmotností 10 až 40 g/m2, na které je uložená vrstva nanovláken z hydrofilního polymeru s plošnou hmotností 0,1 až 10 g/m2, v jejíchž nanovláknech je zakomponována alespoň jedna látka s antibakteriálním účinkem, a to v množství 0,5 až 30 % hmoto, této vrstvy. Nosná textilní vrstva přitom tomuto kompozitu poskytuje potřebné mechanické vlastnosti, vrstva nanovláken pak antibakteriální vlastnosti.The aim of the technical solution is achieved by a textile composite with antibacterial effect, the essence of which consists in that it contains a supporting textile layer with a basis weight of 10 to 40 g / m 2 , on which a layer of nanofibres of hydrophilic polymer with a basis weight of 0.1 to 10 g / m 2 , in the nanofibers of which at least one substance with antibacterial effect is incorporated in an amount of 0.5 to 30% by weight of this layer. The carrier textile layer provides this composite with the necessary mechanical properties, while the nanofiber layer provides antibacterial properties.
Ve výhodné variantě provedení má nosná textilní vrstva plošnou hmotnost 12 až 30 g/m2.In a preferred embodiment variant, the carrier textile layer has a basis weight of 12 to 30 g / m 2 .
Nejvhodnějším materiálem nosné vrstvy je zejména polypropylenová nebo polyetylenpropylenovou netkaná textilie typu spunbond.The most suitable material of the carrier layer is in particular a polypropylene or polyethylene-propylene nonwoven fabric of the spunbond type.
Vrstva nanovláken má ve výhodné variantě provedení plošnou hmotnost 0,1 až 2 g/m2.In a preferred embodiment variant, the nanofiber layer has a basis weight of 0.1 to 2 g / m 2 .
Nejvhodnějším materiálem vrstvy nanovláken je polyamid 6 (PA6), polyvinylbutyral (PVB) nebo polyvinylidenfluorid (PVDF).The most suitable material for the nanofiber layer is polyamide 6 (PA6), polyvinyl butyral (PVB) or polyvinylidene fluoride (PVDF).
- 1 CZ 34674 UI- 1 CZ 34674 UI
Ve výhodné variantě provedení je alespoň jedna látka s antibakteriálním účinkem v nanovláknech vrstvy nanovláken zakomponována v množství 1 až 27 % hmota.In a preferred variant of the embodiment, the at least one substance with an antibacterial effect is incorporated in the nanofibers of the nanofiber layer in an amount of 1 to 27% by weight.
Vhodnou látkou s antibakteriálním účinkem je např. dodecyltrimethylamonium bromid (DTAB), nebo chlorhexidin (CHX). V případě dodecyltrimethylamonium bromidu je jeho optimální množství v nanovláknech vrstvy nanovláken 8 až 27 % hmota., v případě chlorhexidinu pak 1 až 12 % hmota.Suitable substances with antibacterial action are, for example, dodecyltrimethylammonium bromide (DTAB) or chlorhexidine (CHX). In the case of dodecyltrimethylammonium bromide, its optimal amount in the nanofibers of the nanofiber layer is 8 to 27% by weight, in the case of chlorhexidine 1 to 12% by weight.
Kromě toho se cíle technického řešení dosáhne také hygienickou absorpční pomůckou, která obsahuje vnější textilní vrstvu, absorpční vrstvu a vnitřní textilní vrstvu určenou pro kontakt s pokožkou uživatele, jejíž podstata spočívá v tom, že vnitřní textilní vrstva je tvořená textilním kompozitem podle technického řešení, který je uspořádaný svou nosnou textilní vrstvou směrem ven ze struktury této pomůcky a svou vrstvou nanovláken směrem k absorpční vrstvě.In addition, the object of the technical solution is also achieved by a hygienic absorbent device comprising an outer textile layer, an absorbent layer and an inner textile layer intended for contact with the user's skin, the essence of which is that the inner textile layer is formed by a textile composite according to the technical solution. it is arranged with its supporting textile layer towards the outside of the structure of this device and with its layer of nanofibers towards the absorbent layer.
Objasnění výkresůExplanation of drawings
Na přiložených výkresech je na obr. la fotografie Petriho misky s kulturou Staphylococcus aureus inhibovanou textilním kompozitem podle technického řešení v jedné variantě provedení, na obr. 1b fotografie Petriho misky s kulturou Staphylococcus aureus. Na obr. 2 je fotografie Petriho misky s kulturou Staphylococcus aureus inhibovanou textilním kompozitem podle technického řešení ve druhé variantě provedení. Na obr. 3a je fotografie Petriho misky s kulturou Staphylococcus aureus inhibovanou textilním kompozitem podle technického řešení ve třetí variantě provedení, na obr. 3b fotografie Petriho misky s kulturou Staphylococcus aureus. Na obr. 4a je fotografie Petriho misky s kulturou Klebsiella pneumoniae inhibovanou stejným textilním kompozitem podle technického řešení jako na obr. 3a, na obr. 4b fotografie Petriho misky s kulturou Klebsiella pneumoniae.In the accompanying drawings, Fig. 1a is a photograph of a Petri dish with a culture of Staphylococcus aureus inhibited by a textile composite according to the technical solution in one variant embodiment, Fig. 1b is a photograph of a Petri dish with a culture of Staphylococcus aureus. Fig. 2 is a photograph of a Petri dish with a culture of Staphylococcus aureus inhibited by a textile composite according to the technical solution in a second variant embodiment. Fig. 3a is a photograph of a Petri dish with a culture of Staphylococcus aureus inhibited by a textile composite according to the technical solution in a third variant embodiment, Fig. 3b is a photograph of a Petri dish with a culture of Staphylococcus aureus. Fig. 4a is a photograph of a Petri dish with a culture of Klebsiella pneumoniae inhibited by the same textile composite according to the technical solution as in Fig. 3a, and Fig. 4b is a photograph of a Petri dish with a culture of Klebsiella pneumoniae.
Příklady uskutečnění technického řešeníExamples of technical solution
Textilní kompozit s antibakteriálním účinkem podle technického řešení obsahuje nosnou textilní vrstvu libovolného typu, na které je uložená vrstva polymemích nanovláken, v jejíchž nanovláknech je zakomponována alespoň jedna látka s antibakteriálním účinkem.The textile composite with antibacterial effect according to the technical solution comprises a carrier textile layer of any type, on which a layer of polymeric nanofibres is deposited, in the nanofibers of which at least one substance with antibacterial effect is incorporated.
Nosná textilní vrstva je s výhodou tvořená zejména polypropylenovou nebo polyetylenpropylenovou netkanou textilií typu spunbond s plošnou hmotností 10 až 40 g/m2, s výhodu 12 až 30 g/m2.The carrier textile layer is preferably formed in particular of a polypropylene or polyethylene-propylene spunbond nonwoven fabric with a basis weight of 10 to 40 g / m 2 , preferably 12 to 30 g / m 2 .
Vrstva polymemích nanovláken je s výhodou tvořená nanovlákny z hydrofilního polymeru s dobrou stabilitou v kapalinách, jako například polyamidu 6 (PA6), póly viny Ibutyralu (PVB), polyvinylidenfluoridu (PVDF), apod. Její plošná hmotnost je 0,1 až 10 g/m2, s výhodou 0,1 až 2 g/m2. Tato vrstva přitom ve svých nanovláknech obsahuje zakomponovanou alespoň jednu látku s antibakteriálním účinkem. Při použití textilního kompozitu jako součásti hygienické absorpční pomůcky, jako např. pleny, jsou vhodnými látkami s antibakteriálním účinkem zejména látky, které inhibují bakterie nacházející se v lidském trávicím traktu nebo v moči nebo stolici, tj. zejména Enterococcus faecis, Bacteroides fragilis, Escherichia coli. K takovými látkám patří např. dodecyltrimethylamonium bromid (DTAB) nebo chlorhexidin (CHX), apod. V závislosti na konkrétní použité látce s antibakteriálním účinkem je její obsah ve vrstvě polymemích nanovláken 0,5 až 30 % hmota. V případě použití dodecyltrimethylamonium bromid je výhodným množstvím 8 až 27 % hmota., v případě chlorhexidinu 1 až 12 % hmota. - při nižší koncentraci nepůsobí vrstva nanovláken jako celek s antibakteriálními vlastnostmi, při vyšších koncentracích se její antibakteriální vlastnosti již dále nezlepšují, zhoršují se však mechanické vlastnosti nanovláken a roste jejich cena.The polymer nanofiber layer is preferably formed of hydrophilic polymer nanofibers with good stability in liquids, such as polyamide 6 (PA6), ibutyral poly (PVB), polyvinylidene fluoride (PVDF), etc. Its basis weight is 0.1 to 10 g / m 2 , preferably 0.1 to 2 g / m 2 . This layer contains at least one substance with an antibacterial effect in its nanofibers. When using a textile composite as part of a hygienic absorbent device, such as a diaper, suitable substances with antibacterial effect are in particular substances which inhibit bacteria found in the human digestive tract or urine or stool, i.e. in particular Enterococcus faecis, Bacteroides fragilis, Escherichia coli . Such substances include, for example, dodecyltrimethylammonium bromide (DTAB) or chlorhexidine (CHX), etc. Depending on the particular antibacterial substance used, its content in the layer of polymeric nanofibers is 0.5 to 30% by weight. In the case of dodecyltrimethylammonium bromide, the preferred amount is 8 to 27% by weight, in the case of chlorhexidine 1 to 12% by weight. - at lower concentrations the layer of nanofibers does not act as a whole with antibacterial properties, at higher concentrations its antibacterial properties no longer improve, but the mechanical properties of nanofibers deteriorate and their price increases.
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Textilní kompozit s antibakteriálním účinkem podle technického řešení má řadu využití. Jedním z nich je např. jeho uložení ve struktuře stávajících hygienických absorpčních pomůcek, např. pomůcek určených k řešení inkontinence - plenách. V jejich struktuře je tento kompozit uložen jako nej svrchnější vrstva s vrstvou nano vláken orientovanou směrem dovnitř - tj. jako kontaktní vrstva s pokožkou uživatele slouží nosná textilní vrstva tohoto kompozitu. Díky své struktuře a hydrofilním vlastnostem přitom nebrání odvodu kapaliny do absorpčních vrstev pleny, přitom ale této pleně poskytuje antibakteriální vlastnosti, čímž brání vzniku dermatologických defektů a dalších kožních problémů souvisejících s dlouhodobým používáním těchto absorpčních pomůcek.Textile composite with antibacterial effect according to the technical solution has many uses. One of them is, for example, its storage in the structure of existing hygienic absorbent devices, such as devices intended for the solution of incontinence - diapers. In their structure, this composite is deposited as the uppermost layer with the layer of nano-fibers oriented inwards - i.e., as the contact layer with the user's skin, the supporting textile layer of this composite serves. Due to its structure and hydrophilic properties, it does not prevent the drainage of liquid into the absorbent layers of the diaper, but at the same time provides the diaper with antibacterial properties, thus preventing dermatological defects and other skin problems associated with long-term use of these absorbent devices.
Typická struktura hygienické absorpční pomůcky podle technického řešení tak obsahuje vnější textilní vrstvu, tvořenou např. polypropylenovou nebo polyesterovou netkanou textilií, absorpční vrstvu, tvořenou např. vrstvou buničiny s obsahem tzv. superabsorbéru, jako např. polyakrylátu sodného, a vnitřní textilní vrstvu určenou pro kontakt s pokožkou uživatele. Vnitřní textilní vrstva je přitom tvořená výše popsaným textilním kompozitem, který je uspořádaný svou nosnou textilní vrstvou směrem ven ze struktury absorpční pomůcky, tj. k pokožce uživatele, a svou vrstvou nanovláken směrem k absorpční vrstvě absorpční pomůcky. V případě potřeby může tato struktura obsahovat další textilní vrstvy.A typical structure of a hygienic absorbent device according to the technical solution thus comprises an outer textile layer consisting of e.g. polypropylene or polyester nonwoven fabric, an absorbent layer consisting of e.g. a pulp layer containing a so-called superabsorbent such as sodium polyacrylate and an inner textile layer intended for contact with the user's skin. The inner textile layer is formed by the textile composite described above, which is arranged with its supporting textile layer outwards from the structure of the absorbent device, i.e. towards the wearer's skin, and with its layer of nanofibers towards the absorbent layer of the absorbent device. If necessary, this structure can contain additional textile layers.
Při výrobě vrstvy polymemích nanovláken se látka/látky s antibakteriálním účinkem rozpustí ve stejném rozpouštědle jako polymeru a při zvlákňování elektrostatickým zvlákňováním se strhává/strhávají do proudů tohoto roztoku, ze kterých se následně formují jednotlivá nanovlákna. V důsledku toho tato látka/látky s antibakteriálním účinkem tvoří část/části průřez a/nebo délky jednotlivých nanovláken.In the production of a layer of polymeric nanofibers, the substance (s) with antibacterial activity are dissolved in the same solvent as the polymer, and in electrospinning they are entrained in the streams of this solution, from which the individual nanofibers are subsequently formed. As a result, this substance (s) with an antibacterial effect form part (s) of the cross-section and / or lengths of the individual nanofibers.
Vhodný roztok pro přípravu vrstvy nanovláken obsahuje 10 až 14 % hmota, polymeru a 0,1 až 4 % hm. látky/látek s antibakteriálním účinkem.A suitable solution for preparing the nanofiber layer contains 10 to 14% by weight of polymer and 0.1 to 4% by weight. substances / substances with antibacterial effect.
Pokud se vrstva nanovláken při své výrobě elektrostatickým zvlákňováním ukládá přímo na textilii představující nosnou vrstvu budoucího kompozitu, získává k ní dostatečnou adhezi pro uvažované použití pouze tím, že se řada nanovláken na tuto textilii ukládá v ne zcela zatuhlém stavu a dosychá a tuhne až na ní. V případě potřeby je však možné obě vrstvy kompozitu spojit v celé ploše nebo po alespoň části jejich obvodu některou ze známých technologií, např. ultrazvukovým svařováním, bodovým pojením tavným pojivém, např. na bázi polyuretanu (PU), apod.If the layer of nanofibers is deposited directly on the fabric representing the carrier layer of the future composite during its production by electrospinning, it obtains sufficient adhesion to it for the intended use only by depositing a number of nanofibers on this fabric in a not completely solidified state and dries and solidifies only on it. . However, if necessary, it is possible to join the two layers of the composite over the entire surface or over at least part of their circumference by any of the known technologies, e.g. ultrasonic welding, spot bonding with a hot melt binder, e.g. based on polyurethane (PU), etc.
Příklad 1Example 1
Elektrostatickým zvlákňováním s využitím stejnosměrného elektrického napětí se zvláknil roztok, který obsahoval polyamid 6 (PA6) v množství 10 % hmota, a dodecyltrimethylamonium bromid (DTAB) v množství 0,5 % hmota, rozpuštěné v technickém lihu. Vytvářená nanovlákna se ukládala na polypropylenovou netkanou textilii typu spunbond s plošnou hmotností 20 g/m2, a vytvořila na ní vrstvu s plošnou hmotností 2 g/m2. V nanovláknech této vrstvy byl zakomponován dodecyltrimethylammonium bromid v množství 4,8 % hmota.A solution containing polyamide 6 (PA6) in an amount of 10% by weight and dodecyltrimethylammonium bromide (DTAB) in an amount of 0.5% by weight dissolved in technical alcohol was spun by electrostatic spinning using direct voltage. The formed nanofibers were deposited on a polypropylene spunbond nonwoven fabric having a basis weight of 20 g / m 2 , and a layer having a basis weight of 2 g / m 2 was formed thereon. Dodecyltrimethylammonium bromide in an amount of 4.8% by weight was incorporated in the nanofibers of this layer.
Takto vytvořený textilní kompozit se uložil do Petriho misky s živným médiem, ve kterém byla v pruzích zaočkovaná modelová kultura Staphylococcus aureus. Do druhé Petriho misky se stejným živným médiem a stejnou kulturou se uložil textilní kompozit stejné struktury, avšak bez dodecyltrimethylamonium bromidu. V prvním případě došlo k rychlé inhibici kultury Staphylococcus aureus, a to nejen tam, kde tato kultura byla v přímém kontaktu s textilním kompozitem obsahujícím dodecyltrimethylamonium bromid, ale i v těsném okolí tohoto kompozitu - viz obr. la; ve druhém případu neměl textilní kompozit na kulturu Staphylococcus aureus žádný vliv - viz obr. 1b.The textile composite thus formed was placed in a petri dish with a nutrient medium in which a model culture of Staphylococcus aureus was inoculated in strips. A textile composite of the same structure, but without dodecyltrimethylammonium bromide, was placed in a second petri dish with the same nutrient medium and the same culture. In the first case, a culture of Staphylococcus aureus was rapidly inhibited, not only where the culture was in direct contact with a textile composite containing dodecyltrimethylammonium bromide, but also in the immediate vicinity of this composite - see Fig. 1a; in the second case, the textile composite had no effect on the culture of Staphylococcus aureus - see Fig. 1b.
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Příklad 2Example 2
Elektrostatickým zvlákňováním s využitím stejnosměrného elektrického napětí se zvláknil roztok, který obsahoval polyvinylbutyral (PVB) v množství 10% hmoto, a dodecyltrimethylamonium 5 bromid (DTAB) v množství 2 % hmota, rozpuštěné v technickém lihu. Vytvářená nanovlákna se ukládala na polypropylenovou netkanou textilii typu spunbond s plošnou hmotností 20 g/m2, a vytvořila na ní vrstvu s plošnou hmotností 2 g/m2. V nanovláknech této vrstvy byl zakomponován dodecyltrimethylammonium bromid v množství 16,7 % hmota.A solution containing polyvinyl butyral (PVB) in an amount of 10% by weight and dodecyltrimethylammonium 5 bromide (DTAB) in an amount of 2% by weight dissolved in technical alcohol was spun by electrostatic spinning using direct voltage. The formed nanofibers were deposited on a polypropylene spunbond nonwoven fabric having a basis weight of 20 g / m 2 , and a layer having a basis weight of 2 g / m 2 was formed thereon. Dodecyltrimethylammonium bromide in an amount of 16.7% by weight was incorporated in the nanofibers of this layer.
ίο Díky vyšší koncentraci dodecyltrimethylamonium bromidu docházelo k rychlejší inhibici Staphylococcus aureus než v příkladu 1, s přibližně stejným přesahem mimo vzorek kompozitu.Due to the higher concentration of dodecyltrimethylammonium bromide, Staphylococcus aureus was inhibited more rapidly than in Example 1, with approximately the same overlap outside the composite sample.
Příklad 3Example 3
Elektrostatickým zvlákňováním s využitím stejnosměrného elektrického napětí se zvláknil roztok, který obsahoval polyamid 6 (PA 6) v množství 12 % hmota, a dodecyltrimethylamonium bromid (DTAB) v množství 2,5 % hmota, rozpuštěné v rozpouštědlovém systému tvořeném kyselinou octovou a kyselinou mravenčí v hmotnostním poměru 2:1. Vytvářená nanovlákna se ukládala na polypropylenovou netkanou textilii typu spunbond s plošnou hmotností 26 g/m2, a vytvořila na ní 20 vrstvu s plošnou hmotností 3 g/m2. V nanovláknech této vrstvy byl zakomponován dodecyltrimethylammonium bromid v množství 17,2 % hmota.A solution containing polyamide 6 (PA 6) in an amount of 12% by weight and dodecyltrimethylammonium bromide (DTAB) in an amount of 2.5% by weight dissolved in a solvent system consisting of acetic acid and formic acid in the electrostatic spinning using direct voltage was spun. weight ratio 2: 1. The formed nanofibers were deposited on a polypropylene spunbond nonwoven fabric having a basis weight of 26 g / m 2 , and formed a layer thereon with a basis weight of 3 g / m 2 . Dodecyltrimethylammonium bromide in an amount of 17.2% by weight was incorporated in the nanofibers of this layer.
Díky vyšší koncentraci dodecyltrimethylamonium bromidu docházelo k rychlejší inhibici Staphylococcus aureus než v příkladu 1, s přibližně stejným přesahem mimo vzorek kompozitu.Due to the higher concentration of dodecyltrimethylammonium bromide, Staphylococcus aureus was inhibited more rapidly than in Example 1, with approximately the same overlap outside the composite sample.
Příklad 4Example 4
Elektrostatickým zvlákňováním s využitím stejnosměrného elektrického napětí se zvláknil roztok, který obsahoval polyvinylbutyral (PVB) v množství 10 % hmota, a dodecyltrimethylamonium 30 bromid (DTAB) v množství 4 % hmota, rozpuštěné v technickém lihu. Vytvářená nanovlákna se ukládala na polyetylen-propylenovou netkanou textilii typu spunbond s plošnou hmotností 32 g/m2, a vytvořila na ní vrstvu s plošnou hmotností 2 g/m2. V nanovláknech této vrstvy byl zakomponován dodecyltrimethylammonium bromid v množství 28,6 % hmota.A solution containing polyvinyl butyral (PVB) in an amount of 10% by weight and dodecyltrimethylammonium 30 bromide (DTAB) in an amount of 4% by weight dissolved in technical alcohol was spun by electrostatic spinning using direct voltage. The formed nanofibers were deposited on a spunbond polyethylene-propylene nonwoven fabric having a basis weight of 32 g / m 2 , and a layer having a basis weight of 2 g / m 2 was formed thereon. Dodecyltrimethylammonium bromide in an amount of 28.6% by weight was incorporated in the nanofibers of this layer.
Díky vyšší koncentraci dodecyltrimethylamonium bromidu docházelo k rychlejší inhibici Staphylococcus aureus než v příkladu 1, s přibližně stejným přesahem mimo vzorek kompozitu.Due to the higher concentration of dodecyltrimethylammonium bromide, Staphylococcus aureus was inhibited more rapidly than in Example 1, with approximately the same overlap outside the composite sample.
Příklad 5Example 5
Elektrostatickým zvlákňováním s využitím stejnosměrného elektrického napětí se zvláknil roztok, který obsahoval polyamid 6 (PA 6) v množství 14 % hmota, a dodecyltrimethylamonium bromid (DTAB) v množství 0,5 % hmota, rozpuštěné v rozpouštědlovém systému tvořeném kyselinou octovou a kyselinou mravenčí v hmotnostním poměru 2:1. Vytvářená nanovlákna se ukládala na polypropylenovou netkanou textilii typu spunbond s plošnou hmotností 20 g/m2, a vytvořila na ní 45 vrstvu s plošnou hmotností 8 g/m2. V nanovláknech této vrstvy byl zakomponován dodecyltrimethylammonium bromid v množství 3,5 % hmota.Electrostatic spinning using direct current voltage spun a solution containing polyamide 6 (PA 6) in an amount of 14% by weight and dodecyltrimethylammonium bromide (DTAB) in an amount of 0.5% by weight, dissolved in a solvent system consisting of acetic acid and formic acid in weight ratio 2: 1. The formed nanofibers were deposited on a polypropylene nonwoven fabric of the spunbond type with a basis weight of 20 g / m 2 , and formed a layer with an basis weight of 8 g / m 2 thereon. Dodecyltrimethylammonium bromide in an amount of 3.5% by weight was incorporated in the nanofibers of this layer.
Díky nižší koncentraci dodecyltrimethylamonium bromidu docházelo k pomalejší inhibici Staphylococcus aureus než v příkladu 1, v podstatě bez přesahu mimo vzorek kompozitu. I přesto so je však inhibice dostatečná pro uvažované praktické využití.Due to the lower concentration of dodecyltrimethylammonium bromide, Staphylococcus aureus was inhibited more slowly than in Example 1, essentially without overlapping the composite sample. Nevertheless, the inhibition is sufficient for the intended practical use.
Příklad 6Example 6
Elektrostatickým zvlákňováním s využitím stejnosměrného elektrického napětí se zvláknil roztok, 55 který obsahoval polyamid 6 (PA 6) v množství 10 % hmota, a dodecyltrimethylamonium bromidA solution containing 10% by weight of polyamide 6 (PA 6) and dodecyltrimethylammonium bromide was spun by electrostatic spinning using direct current.
-4CZ 34674 UI (DTAB) v množství 3 % hmota, rozpuštěné v rozpouštědlovém systému tvořeném kyselinou octovou a kyselinou mravenčí v hmotnostním poměru 2:1. Vytvářená nanovlákna se ukládala na polypropylenovou netkanou textilii typu spunbond s plošnou hmotností 20 g/m2, a vytvořila na ní vrstvu s plošnou hmotností 2 g/m2. V nanovláknech této vrstvy byl zakomponován dodecyltrimethylammonium bromid v množství 23,1 % hmota.-4GB 34674 UI (DTAB) in an amount of 3% by weight, dissolved in a solvent system consisting of acetic acid and formic acid in a weight ratio of 2: 1. The formed nanofibers were deposited on a polypropylene spunbond nonwoven fabric having a basis weight of 20 g / m 2 , and a layer having a basis weight of 2 g / m 2 was formed thereon. Dodecyltrimethylammonium bromide in an amount of 23.1% by weight was incorporated in the nanofibers of this layer.
Takto vytvořený textilní kompozit se uložit do Petriho misky s živným médiem, ve kterém byla v pruzích zaočkovaná modelová kultura Staphylococcus aureus. Přitom došlo velmi rychle k inhibici kultury Staphylococcus aureus, a to nejen tam, kde tato kultura byla v přímém kontaktu s textilním kompozitem obsahujícím dodecyltrimethylamonium bromid, ale i v těsném okolí tohoto kompozitu - viz obr. 2.The textile composite thus formed is placed in a petri dish with a nutrient medium in which a model culture of Staphylococcus aureus has been inoculated in strips. The culture of Staphylococcus aureus was inhibited very rapidly, not only where this culture was in direct contact with the textile composite containing dodecyltrimethylammonium bromide, but also in the immediate vicinity of this composite - see Fig. 2.
Příklad 7Example 7
Elektrostatickým zvlákňováním s využitím stejnosměrného elektrického napětí se zvláknil roztok, který obsahoval polyvinylbutyral (PVB) v množství 12 % hmota, a chlorhexidin (CHX) v množství 0,1 % hmota, rozpuštěné v technickém lihu. Vytvářená nanovlákna se ukládala na polypropylenovou netkanou textilii typu spunbond s plošnou hmotností 10 g/m2, a vytvořila na ní vrstvu s plošnou hmotností 0,5 g/m2. V nanovláknech této vrstvy byl zakomponován chlorhexidin v množství 0,83 % hmota.A solution containing 12% by weight of polyvinyl butyral (PVB) and 0.1% by weight of chlorhexidine (CHX) dissolved in technical alcohol was spun by direct current electrostatic spinning. The formed nanofibers were deposited on a polypropylene spunbond nonwoven fabric having a basis weight of 10 g / m 2 , and a layer having a basis weight of 0.5 g / m 2 was formed thereon. Chlorhexidine was incorporated in the nanofibers of this layer in an amount of 0.83% by weight.
I při této koncentraci chlorhexidinu docházelo k inhibici Staphylococcus aureus dostatečné pro uvažované praktické využití.Even at this concentration of chlorhexidine, Staphylococcus aureus was inhibited sufficient for the intended practical use.
Příklad 8Example 8
Elektrostatickým zvlákňováním s využitím stejnosměrného elektrického napětí se zvláknil roztok, který obsahoval polyamid 6 (PA 6) v množství 12 % hmota, a chlorhexidin (CHX) v množství 0,7 % hmota, rozpuštěné v rozpouštědlovém systému tvořeném kyselinou octovou a kyselinou mravenčí v hmotnostním poměru 2:1. Vytvářená nanovlákna se ukládala na polypropylenovou netkanou textilii typu spunbond s plošnou hmotností 20 g/m2, a vytvořila na ní vrstvu s plošnou hmotností 3 g/m2. V nanovláknech této vrstvy byl zakomponován chlorhexidin v množství 5,5 % hmota.A solution containing polyamide 6 (PA 6) in an amount of 12% by weight and chlorhexidine (CHX) in an amount of 0.7% by weight dissolved in a solvent system consisting of acetic acid and formic acid by weight was spun by electrostatic spinning using direct voltage. 2: 1 ratio. The formed nanofibers were deposited on a polypropylene spunbond nonwoven fabric having a basis weight of 20 g / m 2 , and a layer having a basis weight of 3 g / m 2 was formed thereon. Chlorhexidine was incorporated in the nanofibers of this layer in an amount of 5.5% by weight.
Díky vyšší koncentraci chlorhexidinu docházelo k rychlejší inhibici Staphylococcus aureus než v příkladu 7, s přesahem mimo vzorek kompozitu.Due to the higher concentration of chlorhexidine, Staphylococcus aureus was inhibited more rapidly than in Example 7, with an overlap outside the composite sample.
Příklad 9Example 9
Elektrostatickým zvlákňováním s využitím stejnosměrného elektrického napětí se zvláknil roztok, který obsahoval polyvinylbutyral (PVB) v množství 10 % hmota, a chlorhexidin (CHX) v množství 1,2% hmota, rozpuštěné v technickém lihu. Vytvářená nanovlákna se ukládala na polypropylenovou netkanou textilii typu spunbond s plošnou hmotností 20 g/m2, a vytvořila na ní vrstvu s plošnou hmotností 1 g/m2. V nanovláknech této vrstvy byl zakomponován chlorhexidin v množství 10,7 % hmota.A solution containing polyvinyl butyral (PVB) in an amount of 10% by weight and chlorhexidine (CHX) in an amount of 1.2% by weight, dissolved in technical alcohol, was spun by electrostatic spinning using direct voltage. The formed nanofibers were deposited on a polypropylene nonwoven fabric of the spunbond type with a basis weight of 20 g / m 2 , and formed a layer therewith with a basis weight of 1 g / m 2 . Chlorhexidine was incorporated in the nanofibers of this layer in an amount of 10.7% by weight.
Díky vyšší koncentraci chlorhexidinu docházelo k podstatně rychlejší inhibici Staphylococcus aureus než v příkladu 8, s přesahem mimo vzorek kompozitu.Due to the higher concentration of chlorhexidine, Staphylococcus aureus was inhibited significantly faster than in Example 8, with an overlap outside the composite sample.
Příklad 10Example 10
Elektrostatickým zvlákňováním s využitím stejnosměrného elektrického napětí se zvláknil roztok, který obsahoval polyamid 6 (PA 6) v množství 14 % hmota, a chlorhexidin (CHX) v množství 0,5 % hmota, rozpuštěné v rozpouštědlovém systému tvořeném kyselinou octovou a kyselinou mravenčí v hmotnostním poměru 2:1. Vytvářená nanovlákna se ukládala na polyetylenA solution containing polyamide 6 (PA 6) in an amount of 14% by weight and chlorhexidine (CHX) in an amount of 0.5% by weight dissolved in a solvent system consisting of acetic acid and formic acid by weight was spun by electrostatic spinning using direct voltage. 2: 1 ratio. The formed nanofibers were deposited on polyethylene
-5CZ 34674 UI propylenovou netkanou textilii typu spunbond s plošnou hmotností 40 g/m2, a vytvořila na ní vrstvu s plošnou hmotností 10 g/m2. V nanovláknech této vrstvy byl zakomponován chlorhexidin v množství 3,5 % hmota.-5CZ 34674 UI propylene nonwoven fabric of the spunbond type with a basis weight of 40 g / m 2 , and formed a layer thereon with a basis weight of 10 g / m 2 . Chlorhexidine was incorporated in the nanofibers of this layer in an amount of 3.5% by weight.
Díky nižší koncentraci chlorhexidinu docházelo k pomalejší inhibici Staphylococcus aureus než v příkladu 9, s menším přesahem mimo vzorek kompozita.Due to the lower concentration of chlorhexidine, Staphylococcus aureus was inhibited more slowly than in Example 9, with less overlap outside the composite sample.
Příklad 11Example 11
Elektrostatickým zvlákňováním s využitím stejnosměrného elektrického napětí se zvláknil roztok, který obsahoval polyvinylidenfuorid (PVDF) v množství 12 % hmota, a dodecyltrimethylamonium bromid (DTAB) v množství 2 % hmota, rozpuštěné v technickém lihu. Vytvářená nanovlákna se ukládala na polypropylenovou netkanou textilii typu spunbond s plošnou hmotností 20 g/m2, a vytvořila na ní vrstvu s plošnou hmotností 2 g/m2. V nanovláknech této vrstvy byl zakomponován dodecyltrimethylammonium bromid v množství 14,3 % hmota.A solution containing 12% by weight of polyvinylidene fluoride (PVDF) and 2% by weight of dodecyltrimethylammonium bromide (DTAB) dissolved in technical alcohol was spun by electrostatic spinning using direct voltage. The formed nanofibers were deposited on a polypropylene spunbond nonwoven fabric having a basis weight of 20 g / m 2 , and a layer having a basis weight of 2 g / m 2 was formed thereon. Dodecyltrimethylammonium bromide in an amount of 14.3% by weight was incorporated in the nanofibers of this layer.
Takto vytvořený textilní kompozit se uložil do Petriho misky s živným médiem, ve kterém byla v pruzích zaočkovaná modelová kultura Staphylococcus aureus. Do druhé Petriho misky se stejným živným médiem a stejnou kulturou se uložil textilní kompozit stejné struktury, avšak bez dodecyltrimethylamonium bromidu. V prvním případě došlo k rychlé inhibici kultury Staphylococcus aureus, a to nejen tam, kde tato kultura byla v přímém kontaktu s textilním kompozitem obsahujícím dodecyltrimethylamonium bromid, ale i v těsném okolí tohoto kompozitu - viz obr. 3a; ve druhém případu neměl textilní kompozit na kulturu Staphylococcus aureus žádný vliv - viz obr. 3b.The textile composite thus formed was placed in a petri dish with a nutrient medium in which a model culture of Staphylococcus aureus was inoculated in strips. A textile composite of the same structure, but without dodecyltrimethylammonium bromide, was placed in a second petri dish with the same nutrient medium and the same culture. In the first case, there was a rapid inhibition of the culture of Staphylococcus aureus, not only where this culture was in direct contact with the textile composite containing dodecyltrimethylammonium bromide, but also in the immediate vicinity of this composite - see Fig. 3a; in the second case, the textile composite had no effect on the culture of Staphylococcus aureus - see Fig. 3b.
Poté se jiný vzorek tohoto textilního kompozita uložil do Petriho misky s živným médiem, ve kterém byla v pruzích zaočkovaná modelová kultura Klebsiella pneumoniae. Do druhé Petriho misky se stejným živným médiem a stejnou kulturou se uložil textilní kompozit stejné struktury, avšak bez dodecyltrimethylamonium bromidu. V prvním případě došlo k rychlé inhibici kultury Klebsiella pneumoniae tam, kde tato kultura byla v přímém kontaktu s textilním kompozitem obsahujícím dodecyltrimethylamonium bromid - viz obr. 4a; ve druhém případu neměl textilní kompozit na kulturu Staphylococcus aureus žádný vliv - viz obr. 4b.Then, another sample of this textile composite was placed in a petri dish with nutrient medium in which a strip culture of Klebsiella pneumoniae was inoculated in strips. A textile composite of the same structure, but without dodecyltrimethylammonium bromide, was placed in a second petri dish with the same nutrient medium and the same culture. In the first case, there was a rapid inhibition of the culture of Klebsiella pneumoniae where this culture was in direct contact with the textile composite containing dodecyltrimethylammonium bromide - see Fig. 4a; in the second case, the textile composite had no effect on the culture of Staphylococcus aureus - see Fig. 4b.
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