Classifications

• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
  • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
  • D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
• • 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
  • D04H1/4391—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 characterised by the shape of the fibres
  • D04H1/43918—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 characterised by the shape of the fibres nonlinear fibres, e.g. crimped or coiled fibres
• • 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
  • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
  • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
  • D04H1/5412—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres sheath-core
• • 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
• • 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 of the pads
  • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
  • A61K8/0208—Tissues; Wipes; Patches
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
  • A61K8/34—Alcohols
  • A61K8/345—Alcohols containing more than one hydroxy group
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
  • A61K8/37—Esters of carboxylic acids
  • A61K8/375—Esters of carboxylic acids the alcohol moiety containing more than one hydroxy group
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/60—Sugars; Derivatives thereof
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
  • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
  • A61K8/86—Polyethers
• • 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
  • A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
  • A61L15/26—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
• • 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
  • A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
  • A61L15/34—Oils, fats, waxes or natural resins
• • 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
  • A61L15/48—Surfactants
• • 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
  • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
  • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
• • 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
  • D04H13/00—Other non-woven fabrics
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
  • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
  • D06M13/144—Alcohols; Metal alcoholates
  • D06M13/148—Polyalcohols, e.g. glycerol or glucose
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
  • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
  • D06M13/165—Ethers
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
  • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
  • D06M13/165—Ethers
  • D06M13/17—Polyoxyalkyleneglycol ethers
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
  • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
  • D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
  • D06M13/2243—Mono-, di-, or triglycerides
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
  • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
  • D06M15/03—Polysaccharides or derivatives thereof
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
  • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
  • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • D06M15/53—Polyethers
• • 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
  • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
  • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
  • D04H1/5414—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres side-by-side
• • 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
  • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
  • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
  • D04H1/5416—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres sea-island
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
  • D06M2101/16—Synthetic fibres, other than mineral fibres
  • D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D06M2101/20—Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
  • D06M2101/16—Synthetic fibres, other than mineral fibres
  • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • D06M2101/32—Polyesters

Definitions

• Synthetic fibers, fiber treatment agents, and technologies related to their use are disclosed.
• Synthetic fibers are superior in mechanical properties and chemical resistance compared to natural fibers, so they are mainly in the form of non-woven fabric, liquid-impregnated sheets such as wipers, wet tissues, face masks, and cosmetic / medical patches. It is used as a top sheet for various sanitary products such as disposable diapers and sanitary napkins.
• synthetic fibers particularly synthetic fibers containing polyolefin resins such as polyethylene resins and polypropylene resins (sometimes referred to as polyolefin fibers) are more hydrophilic than cotton, which is natural fiber, and rayon, which is cellulose fiber. Low hydrophobicity and hydrophobicity. Therefore, when synthetic fibers are used as the liquid-impregnated sheet or the sanitary article top sheet, it is necessary to improve the hydrophilicity of the synthetic fibers.
• Various methods have been reported as methods for improving the hydrophilicity of synthetic fibers. One of them is a method of treating fibers with a fiber treatment agent containing lactate and attaching (poly) glycerin to the fiber surface. Yes (Patent Document 1).
• moisture retention may be required to alleviate the drying of the skin where it comes into contact with the skin.
• One problem is to provide a synthetic fiber with improved properties of conventional synthetic fibers and a fiber treatment agent therefor.
• a synthetic fiber with improved hydrophilicity, a synthetic fiber with improved moisture retention, and a fiber treatment agent therefor are provided.
• the present inventors have found that, by using a glycerin compound and mannosyl erythritol lipid (MEL) in a fiber treatment agent and treating the synthetic fiber with this fiber treatment agent, moisture retention, hydrophilicity, etc. can be imparted to the synthetic fiber. . Moreover, it is suggested that the hydrophilicity-imparting effect of the fiber treatment agent is greatly reduced by adding a surfactant having a lipopeptide structure such as surfactin, sophorolipid, rhamnolipid, and MEL to the fiber treatment agent substantially free of lactate.
• a surfactant having a lipopeptide structure such as surfactin, sophorolipid, rhamnolipid, and MEL
• Patent Document 1 Comparative Examples 11 to 16
• MEL MEL
• a fiber treatment agent containing a glycerin compound by adding MEL to a fiber treatment agent containing a glycerin compound, imparting hydrophilicity to the fiber treatment agent even if the fiber treatment agent does not substantially contain lactate. It has been found that the action is improved.
• the present inventors have completed the invention represented by the following.
• Item 1 Mannosyl erythritol lipid (MEL), and (b) (poly) glycerin, (poly) glycerin fatty acid ester, and (poly) glycerin alkylene oxide adduct are selected from the group consisting of at least one glycerin compound. Synthetic fiber adhering to the fiber surface.
• Item 2. Item 2. The synthetic fiber according to Item 1, wherein the fiber adhesion amounts of the components (a) and (b) are 0.05 to 10% by mass and 0.01 to 1% by mass, respectively, with respect to the synthetic fiber mass.
• MEL is mannosyl erythritol lipid A (MEL-A), mannosyl erythritol lipid B (MEL-B), mannosyl erythritol lipid C (MEL-C), mannosyl erythritol lipid D (MEL-D), a triacyl derivative of MEL-A, Item 3.
• the synthetic fiber according to Item 1 or 2 which is at least one selected from the group consisting of a MEL-B triacyl body, a MEL-C triacyl body, and a MEL-D triacyl body.
• MEL Mannosyl erythritol lipid
• the total mass of components (a) and (b) is 40% by mass or more based on the total amount of the fiber treatment agent, and the mass of component (a) is 33 to 99 with respect to the total mass of components (a) and (b). .5% by weight, Synthetic fiber.
• the total mass of components (a) and (b) is 40% by mass or more based on the total amount of the fiber treatment agent, and the mass of component (a) is 33 to 99 with respect to the total mass of components (a) and (b). .5% by weight, Syn
• MEL is mannosyl erythritol lipid A (MEL-A), mannosyl erythritol lipid B (MEL-B), mannosyl erythritol lipid C (MEL-C), mannosyl erythritol lipid D (MEL-D), a triacyl derivative of MEL-A, Item 5.
• Item 6. Item 6. A fiber assembly containing 50% by mass or more of the synthetic fiber according to any one of Items 1 to 5.
• a skin contact product comprising the fiber assembly according to item 6 in a skin contact part of the product, wherein the fiber assembly is a nonwoven fabric.
• Item 8. The skin contact product according to Item 7, wherein the skin contact product is a sanitary product.
• Item 9. (A) Mannosyl erythritol lipid (MEL) and (b) (poly) glycerin, (poly) glycerin fatty acid ester, and at least one glycerin compound selected from the group consisting of alkylene oxide adducts of (poly) glycerin A fiber treatment agent comprising 33 to 99.5% by mass of component (a) with respect to the total mass of components (a) and (b).
• Item 10. Item 10.
• a synthetic fiber having excellent hydrophilicity is provided.
• a synthetic fiber with moisture retention is provided.
• a fiber treatment agent capable of imparting hydrophilicity to a synthetic fiber is provided.
• a fiber treatment agent that can impart hydrophilicity and moisture retention to a synthetic fiber is provided.
• a fiber treatment agent having a hydrophilicity imparting action enhanced by MEL is provided.
• Component (a) is mannosyl erythritol lipid (MEL).
• Component (b) is at least one glycerin compound selected from the group consisting of (poly) glycerin, (poly) glycerin fatty acid ester, and an alkylene oxide adduct of (poly) glycerin.
• the substituent R 1 is the same or different aliphatic acyl group having 2 to 24 carbon atoms, and the substituents R 2 and R 3 may be the same or different.
• An acetyl group or a hydrogen atom is the same or different.
• the substituent R 1 may be the same or different and has 2 to 24 carbon atoms, preferably 2 to 20 or 4 to 24 carbon atoms, more preferably 4 to 18 carbon atoms, still more preferably carbon atoms. 6 to 14 aliphatic acyl groups.
• MEL is based on the presence or absence of acetyl groups at positions 4 and 6 of mannose, mannosyl erythritol lipid A (MEL-A), mannosyl erythritol lipid B (MEL-B), mannosyl erythritol lipid C (MEL-C), and Mannosyl erythritol lipid D (MEL-D) is classified into four types.
• MEL-A in the general formula (1), the substituents R 2 and R 3 are both acetyl groups.
• MEL-B in the general formula (1), the substituent R 2 is an acetyl group, and the substituent R 3 is a hydrogen atom.
• MEL-C in the general formula (1), the substituent R 2 is a hydrogen atom, and the substituent R 3 is an acetyl group.
• MEL-D in the general formula (1), the substituents R 2 and R 3 are both hydrogen atoms.
• the carbon number of the substituent R 1 in the above MEL-A to MEL-D is the number of carbon atoms of fatty acids constituting triglycerides, which are oils and fats to be contained in the MEL production medium, and the utilization of fatty acids of MEL-producing bacteria to be used. Varies with degree.
• the above-mentioned triglyceride has an unsaturated fatty acid residue
• the obtained MEL is usually in the form of a mixture of compounds having different fatty acid residue portions of the substituent R 1 .
• Triacyl form of MEL The structure of the triacyl form of MEL, that is, triacyl mannosyl erythritol lipid (sometimes referred to as triacyl MEL) is shown in general formula (2) or (3).
• the substituent R 1 is an aliphatic acyl group having 2 to 24 carbon atoms which may be the same or different, and the substituent R 2 may be the same or different.
• the substituent R 1 may be the same or different and has 2 to 24 carbon atoms, preferably 2 to 20 or 4 to 24, more preferably 4 to 18 carbon atoms, still more preferably Is an aliphatic acyl group having 6 to 14 carbon atoms
• the substituent R 2 is a hydrogen atom or an acetyl group which may be the same or different
• the substituent R 3 is 2 to 24 carbon atoms, preferably 2 to 20 carbon atoms.
• triacyl MELs are classified into four types of triacyl MEL-A, triacyl MEL-B, triacyl MEL-C, and triacyl MEL-D based on the presence or absence of acetyl groups at the 4th and 6th positions of mannose. .
• the triacyl form of MEL can be obtained from, for example, a culture solution of MEL-producing bacteria. Moreover, the triacyl body of MEL can also be manufactured by making MEL react with various vegetable oils using an enzyme.
• MEL is, for example, mannosyl erythritol lipid A (MEL-A), mannosyl erythritol lipid B (MEL-B), mannosyl erythritol lipid C (MEL-C), mannosyl erythritol lipid D (MEL-D), triacyl of MEL-A , MEL-B triacyl, MEL-C triacyl, and MEL-D triacyl.
• MEL-A mannosyl erythritol lipid A
• MEL-B mannosyl erythritol lipid B
• MEL-C mannosyl erythritol lipid C
• MEL-D mannosyl erythritol lipid D
• Preferred MEL is at least one selected from the group consisting of MEL-A and MEL-B, and MEL-B is more preferred.
• MEL-B MEL-B having a structure represented by the general formula (4) or (5) is preferable.
• the substituent R 1 is the same or different aliphatic acyl group having 4 to 24 carbon atoms
• the substituent R 1 may be the same or different and is an aliphatic acyl group having 4 to 24 carbon atoms, preferably 4 to 18 carbon atoms, more preferably 6 to 14 carbon atoms. It is.
• MEL may be used independently, 2 or more types of MEL can also be used together.
• MEL used in the present invention is not particularly limited, and for example, a commercially available product or a product produced by a conventionally known production method can be used.
• MEL MEL-A, MEL-B, MEL-C
• MEL-producing microorganism for example, Pseudozyma antarctica (NBRC 1073), Pseudozyma tsukubaensis, Pseudozyma hubeiensis, Pseudozyma graminicola according to a conventional method.
• Pseudozyma sp., Etc. can be produced.
• Component (b) is at least one glycerin compound selected from the group consisting of (poly) glycerin, (poly) glycerin fatty acid ester, and an alkylene oxide adduct of (poly) glycerin.
• (poly) glycerin means monoglycerin or polyglycerin, or a mixture of both.
• the polyglycerol those having an average degree of polymerization of 2 to 30 are preferably used, and those having an average degree of polymerization of 2 to 15 are more preferably used.
• Specific examples of polyglycerin include diglycerin, tetraglycerin, hexaglycerin, octaglycerin, and decaglycerin.
• (Poly) glycerin fatty acid ester is an ester of (poly) glycerin and a fatty acid, and includes monoesters, diesters, and triesters.
• the fatty acid component includes, for example, those derived from fatty acids having 10 to 22 carbon atoms, preferably 12 to 18 carbon atoms.
• the fatty acid may be saturated or unsaturated.
• saturated fatty acids such as capric acid, lauric acid, tridecylic acid, myristic acid, pentadecylic acid, palmitic acid, heptadecylic acid, stearic acid, isostearic acid, nonadecanoic acid, arachidic acid and behenic acid, and oleic acid.
• unsaturated fatty acids a polyglycerin monofatty acid ester in which a fatty acid having 10 to 22 carbon atoms is ester-bonded to a polyglycerol having a polymerization degree of 2 to 15 is preferably used, and a polyglycerol having a polymerization degree of 6 to 12 is used.
• Polyglycerin monolaurate in which a fatty acid (lauric acid) is ester-bonded is particularly preferably used.
• (Poly) glycerin used in (poly) glycerin fatty acid ester is generally made from a glycerin-related substance such as (mono) glycerin, glycidol, or epichlorohydrin, and (mono) glycerin is dehydrated and condensed (poly)
• a production method such as a glycidol method, an epichlorohydrin method, or a diglycerin crosslinking method.
• (poly) glycerin When (poly) glycerin is produced by these production methods, not only linear (poly) glycerin having a desired degree of polymerization but also cyclic (poly) glycerin having 6-membered and 8-membered rings are by-produced. It may be contained in polymerized (poly) glycerin produced as a product. In addition, (poly) glycerin having a low polymerization degree and a low polymerization degree, which is different from the target polymerization degree, is also produced as a by-product and may be contained in (poly) glycerin. Among these, cyclic (poly) glycerin is considered to have low hydrophilicity and is considered to be highly irritating to the human body, and therefore its content is preferably smaller.
• the average degree of polymerization of (poly) glycerin refers to the average degree of polymerization determined from the hydroxyl value used in commonly distributed (poly) glycerin. Moreover, content of the cyclic body contained in (poly) glycerin can be analyzed using a liquid chromatograph mass spectrometer (LC / MS) or the like.
• LC / MS liquid chromatograph mass spectrometer
• the average number of added moles of the alkylene oxide is, for example, 2 to 30, preferably 4 to 24, more preferably 8 to 20.
• an alkylene oxide in the alkylene oxide adduct of (poly) glycerin for example, an alkylene oxide having 2 to 4 carbon atoms is used. Specific examples thereof include ethylene oxide, propylene oxide, and butylene oxide.
• an alkylene oxide adduct of (poly) glycerin an alkylene oxide adduct of diglycerin obtained by adding alkylene oxide to diglycerin is preferably used, and a propylene oxide adduct is particularly preferably used.
• the average addition mole number of the propylene oxide adduct is, for example, in the range of the above average addition mole number, and preferably 9 to 14.
• the fiber adhesion amount of the component (a) adhering to the fiber surface of the synthetic fiber can be, for example, 0.05 mass% or more, 0.1 mass% or more, 0.3 mass% or more with respect to the synthetic fiber mass, For example, it can be 10 mass% or less, 5 mass% or less, 3 mass% or less, and 1 mass% or less.
• the fiber adhesion amount of component (a) is, for example, 0.05 to 10% by mass, preferably 0.1 to 5% by mass, more preferably 0.3 to 3% by mass.
• the fiber adhesion amount of the component (b) adhering to the fiber surface of the synthetic fiber is not particularly limited as long as the effect is exhibited, but for example, 0.01% by mass or more, 0.05% by mass or more with respect to the synthetic fiber mass. 0.1% by mass or more, for example, 1% by mass or less, 0.8% by mass or less, and 0.5% by mass or less.
• the fiber adhesion amount of component (b) is, for example, 0.01-1% by mass, preferably 0.05-0.8% by mass, more preferably 0.1-0.5% by mass.
• a fiber adhesion amount means the adhesion amount of a component (a) or (b) with respect to the mass of the synthetic fiber of the dried state finally obtained.
• the synthetic fiber is a synthetic fiber having a fiber treatment agent attached to the fiber surface, wherein the fiber treatment agent comprises (a) mannosyl erythritol lipid (MEL), and (b) (poly) glycerin, ( Poly) glycerin fatty acid ester, and (poly) glycerin alkylene oxide adduct at least one selected from the group consisting of glycerin compounds, and the total mass of components (a) and (b) is based on the entire fiber treatment agent
• a synthetic fiber having a content of 40% by mass or more and a mass of component (a) of 33 to 99.5% by mass with respect to the total mass of components (a) and (b).
• component (a) in the fiber treatment agent containing components (a) and (b), when the total mass of components (a) and (b) is 100% by mass, component (a) is, for example, 33 to 99. It is prepared to be contained in an amount of 0.5% by mass, preferably 50 to 90% by mass, more preferably 60 to 80% by mass.
• the amount of component (b) may be an amount such that the amount of component (a) falls within the above range. For example, when component (a) is 33% by mass, component (b) is 67 When the component (a) is 67% by mass, the component (b) is 33% by mass.
• the amounts of the components (a) and (b) are in the above ranges, hydrophilicity and moisture retention given to the synthetic fiber, fiber workability, for example, performance of suppressing static electricity in the carding process of fiber processing Is advantageous.
• the total mass of the components (a) and (b) is, for example, 40% by mass or more, 50% by mass or more, 60% by mass or more, 70% by mass or more, 80% by mass. It occupies mass% or more, 85 mass% or more, 90 mass% or more, 95 mass% or more, and 97 mass% or more.
• the other components are desired hydrophilicity, moisture retention, fiber processability, etc. in the synthetic fiber to be obtained. Depending on the performance, it may be selected from the components blended in the fiber treatment agent.
• the fiber treatment agent can contain other hydrophilic components, other moisturizing components, fiber processing property improving components and the like as long as they do not impair the effects of the present invention.
• a salt of lactic acid and a metal for example, lactic acid
• lactic acid Lith Generation
• a metal for example, lactic acid
• components other than the components (a) and (b) that can be contained in the fiber treatment agent components usually used in fiber treatment agents can be used.
• various tocopherols such as ⁇ -tocopherol, ⁇ -tocopherol, ⁇ -tocopherol, and ⁇ -tocopherol
• various carotenoids such as ⁇ -carotene, lycopene, lutein, and astaxanthin, ubiquinones (ubiquinol, ubidecarenone, CoQ10)
• Lipophilic antioxidants such as ⁇ -lipoic acid (lipoic acid, thioctic acid), BHT (dibutylhydroxytoluene), and BHA (butylhydroxyanisole), ascorbic acid, isoascorbic acid, catechin, catechin gallate, epigallo
• catechins such as catechin gallate, epigallocatechin, epicatechin gallate, epicatechin, gallocatechin gallate, and gallocatechin, various glycoside
• a surfactant other than the component (a) may be added to the fiber treatment agent.
• the known surfactants are sugar ester type (also called “polyhydric alcohol ester type”), fatty acid ester type, alcohol type, alkylphenol type, polyphenol Nonionic surfactants such as oxyethylene / polyoxypropylene block polymer type, alkylamine type, bisphenol type, polyaromatic ring type, silicone type, fluorine type and vegetable oil type, sulfate type, sulfonate type, carboxylic acid type, 1 or selected from surfactants such as anionic surfactants such as phosphate type, cationic surfactants such as ammonium type and benzalkonium type, and amphoteric surfactants such as betaine type and glycine type A plurality of surfactants may be added.
• biosurfactant that is a surfactant derived from a living body such as a microorganism (however, other than the component (a)).
• a biosurfactant include biosurfactants of glycolipid types (also referred to as glycoforms) such as surfactants having lipopeptide structures (also referred to as amino acid types and acyl peptide types), trehalose lipids, and cellobiose lipids as described above.
• glycolipid types also referred to as glycoforms
• surfactants having lipopeptide structures also referred to as amino acid types and acyl peptide types
• trehalose lipids also referred to as amino acid types and acyl peptide types
• cellobiose lipids as described above.
• phospholipid-based, fatty acid-based and polymer compound-based biosurfactants which can be used alone or in combination of two or more.
• various functional agents that can be used as cosmetics for example, enhancing the synthesis of hyaluronic acid or exerting cell-activating activity, thereby providing an anti-aging effect
• a functional agent that exhibits anti-aging effects a functional agent that suppresses the production of melanin by inhibiting and suppressing the activity of tyrosinase and exerts a whitening effect
• Other functional agents that can be used in cosmetics such as other functional agents with UV protection and UV care effects, functional agents with anti-inflammatory effects, and functional agents with anti-irritant effects, inhibit the effects of the present invention In the range which does not carry out, you may add to a fiber processing agent as components other than a component (a) and (b).
• chitin, chitosan, and chitin and chitosan derivatives derived therefrom are functional agents that can be used in cosmetics, and exhibit antibacterial and moisturizing effects when added. sell.
• the synthetic fibers and fiber aggregates of the present invention directly touch the skin of sanitary articles such as disposable diapers and sanitary napkins, and cosmetic-impregnated sheets. It is possible to increase the added value of a product that takes a long time for contact.
• the fiber treatment agent is used so that the fiber adhesion amount of the components (a) and (b) described above is achieved.
• the synthetic fiber can be made of, for example, a thermoplastic resin.
• a thermoplastic resin include polyethylene (including high density, low density, linear low density polyethylene), polypropylene, polybutene, polybutylene, polymethylpentene resin, polybutadiene, and an ethylene copolymer (for example, ethylene).
• - ⁇ -olefin copolymer propylene-based copolymer (eg, propylene-ethylene copolymer), ethylene-vinyl alcohol copolymer, ethylene-vinyl acetate copolymer, ethylene- (meth) acrylic acid copolymer Or polyolefin resins such as ethylene- (meth) acrylic acid methyl copolymer, polyethylene terephthalate, polybutylene terephthalate, polytrimethylene terephthalate, polyethylene naphthalate, polylactic acid, polybutylene succinate and copolymers thereof, etc.
• propylene-based copolymer eg, propylene-ethylene copolymer
• ethylene-vinyl alcohol copolymer ethylene-vinyl acetate copolymer
• ethylene- (meth) acrylic acid copolymer ethylene- (meth) acrylic acid copolymer
• polyolefin resins such as ethylene- (meth) acrylic acid
• Polyeste Resin polyamide resin such as nylon 66, nylon 12 and nylon 6, acrylic resin, polycarbonate, polyacetal, engineering plastics such as polystyrene and cyclic polyolefin, mixtures thereof, and elastomeric resins thereof. it can.
• the synthetic fiber may be in any form, for example, may be a single fiber made of one resin or a mixture of a plurality of resins, or may be a composite fiber made of two or more components.
• the composite fiber is, for example, a core-sheath type composite fiber, an eccentric core-sheath type composite fiber, a parallel type composite fiber, a sea-island type composite fiber, and a split type composite fiber in which citrus tufted resin components are alternately arranged. It's okay.
• the cross-sectional shape of the synthetic fiber may be any shape.
• the synthetic fiber may be a generally obtained synthetic fiber having a circular (for example, a perfect circle) cross section, or may be a synthetic fiber having a non-circular cross section, that is, a fiber having a so-called irregular cross section.
• the cross-sectional shape of the fiber having an irregular cross-section is, for example, a polygonal shape, an elliptical shape, a flat shape, or a so-called multi-leaf shape having a number of branch portions on the fiber surface (specifically, from 3 to 32 leaves). Multi-leaf shape), star shape, C-shape, Y-shape, W-shape, cross-shape, and well-shape.
• the synthetic fiber is longitudinal in the fiber cross section regardless of whether it is a single fiber or a composite fiber and / or whether the fiber cross-sectional shape is circular or irregular. It may be a so-called solid fiber that does not have a continuous hollow portion, or may be a so-called hollow fiber that has one or more hollow portions that are continuous in the length direction.
• the sheath component and the core satisfy the “melting point of the sheath component” ⁇ “melting point of the core component ⁇ 10 ° C.” It is preferable to select a resin constituting the component. By such a combination, it is possible to obtain a heat-adhesive conjugate fiber that can utilize the sheath component as a heat-adhesive component.
• polyethylene including naphtha and other raw materials derived from crude oil-derived ethylene as well as those derived from natural products, so-called biomass-derived raw materials, high-density polyethylene, Low density polyethylene, linear low density polyethylene, etc., including but not limited to polyethylene polymerized with known catalysts such as Ziegler-Natta catalysts and metallocene catalysts), ethylene copolymers, propylene copolymers , Low-melting resins such as copolyesters, polybutylene succinates and polybutylene succinate adipates (also referred to as polybutylene succinate agitates) can be used.
• Preferred combinations (core / sheath) of the core-sheath composite fiber include polypropylene / high density polyethylene, polypropylene / low density polyethylene, polypropylene / linear low density polyethylene, polyethylene terephthalate / high density polyethylene, polyethylene terephthalate / low density polyethylene, Polyethylene terephthalate / linear low density polyethylene, polypropylene / ethylene-propylene copolymer, polyethylene terephthalate / ethylene-propylene copolymer, polylactic acid / polyethylene, polylactic acid / polybutylene succinate, and polylactic acid / polybutylene succinate Examples include adipate.
• the composite ratio (volume ratio) of the core component / sheath component is 2/8 to 8 in consideration of the spinnability, adhesiveness and processability of the fiber. / 2 is preferable, and 3/7 to 7/3 is advantageous in terms of card passing property and thermal adhesiveness of fibers.
• Fiber treatment agent makes it possible to impart good hydrophilicity to synthetic fibers. Therefore, a fiber whose fiber surface is composed of a hydrophobic thermoplastic resin, in particular, a fiber whose surface is composed of polyethylene, polypropylene, copolymer polyester, ethylene copolymer and / or propylene copolymer. The effect of imparting hydrophilicity can be remarkably obtained.
• the fineness of the fiber is preferably 0.3 to 20 dtex, more preferably 0.3 to 10 dtex.
• the fineness of the synthetic fiber is appropriately selected depending on the use in which the fiber is used. For example, when used for a top sheet of a sanitary product, the fineness is preferably 0.5 to 8 dtex, and 0.7 to 7 dtex. More preferred is 1 to 7 dtex. When using synthetic fibers for wipers and wet tissues, the fineness is preferably 0.5 to 10 dtex. In addition, when synthetic fibers are used for a cosmetic-impregnated sheet such as a face mask and a base fabric of a cosmetic / medical patch, the fineness is preferably 0.3 to 5 dtex. When the fineness is in the above range, it is advantageous in terms of fiber strength and flexibility when a fiber aggregate (for example, non-woven fabric) is used.
• the synthetic fiber is obtained by treating the synthetic fiber with a fiber treatment agent containing components (a) and (b), for example.
• synthetic fibers can also be obtained by treating synthetic fibers with component (b) and then treating with component (a).
• a resin that is a raw material of a synthetic fiber to be treated is melt-spun using a known melt spinning machine using an appropriate spinning nozzle and spinning temperature in accordance with the fiber form to be obtained.
• the spun filament is drawn as necessary.
• the stretching method and stretching conditions used for stretching are not particularly limited, and are appropriately set according to the type of resin, the combination of resins in the case of composite fibers, the fiber performance to be obtained, and the like.
• the film is stretched in warm water, hot air, or a heat medium under conditions of a stretching temperature of 60 to 110 ° C. and a stretching ratio of 2.0 to 8.0.
• the stretching method is not particularly limited, and wet stretching is performed while heating in a high-temperature liquid such as warm water or hot water, dry stretching is performed while stretching in a high-temperature gas or a high-temperature metal roll, 100 ° C.
• a known stretching process such as steam stretching, in which stretching is performed while heating the fiber with the above steam at normal pressure or under pressure, can be performed.
• a fiber treatment agent is attached to the filament.
• a solution obtained by diluting a fiber treatment agent with water or other solvent (hereinafter also referred to as “treatment liquid”) is attached to the surface of the obtained drawn filament, and then the filament is dried and attached. Water (or other solvent) is evaporated from the treated liquid. By this operation, the fiber treating agent adheres to the dried filament.
• the method for attaching the treatment liquid to the fiber surface is not particularly limited, and for example, the treatment liquid can be attached by a known spray method, impregnation method, or roll touch method.
• the dried filament is cut into a predetermined length as necessary, and is provided as short fibers or staple fibers having a fiber length of about 2 to 100 mm, or as long fibers (continuous fibers). Alternatively, the filament can be cut to a desired length and then treated with a fiber treatment agent.
• the drawn filaments are crimped by a crimping device in the range of about 10 to 25 crests / 25 mm of crimps and a crimping rate of about 8 to 25%.
• a crimping device in the range of about 10 to 25 crests / 25 mm of crimps and a crimping rate of about 8 to 25%.
• the synthetic fiber of the present invention is not limited to those obtained by attaching the fiber treatment agent at the fiber production stage, and the fiber treatment agent is attached to the synthetic fiber at the production stage of the fiber assembly using the synthetic fiber. Including things. For example, after obtaining a fiber aggregate such as a non-woven fabric from a synthetic fiber to which an untreated or other fiber treatment agent is adhered by a method described later, the component (a) or (b) is added to the fiber aggregate. This method is performed by a method in which the treatment agent is adhered to the surface of at least a part of the synthetic fibers constituting the fiber assembly, such as a method of spraying the treatment agent obtained by adjusting the content or a method of impregnating the treatment agent. It is also possible to obtain the inventive synthetic fibers. Alternatively, in the stage before taking the form of a fiber aggregate (for example, a fiber web for producing a nonwoven fabric and a spun yarn for woven or knitted fabric obtained by spinning from the fiber), the fiber treatment agent is adhered. May be.
• Synthetic fibers obtained by the above method are known fiber assemblies, For example, it is used after being processed into a woven or knitted fabric, a net-like product, a non-woven fabric or the like.
• the fiber aggregate contains, for example, 50% by mass or more, 75% by mass or more, preferably 90% by mass or more, and more preferably 100% by mass of the synthetic fiber of the present invention.
• the synthetic fiber of the present invention is particularly preferably used for producing a nonwoven fabric. Non-woven fabrics are manufactured by making fiber webs and then bonding and / or entanglement of the fibers together.
• the form of the fiber web is not particularly limited, and parallel web, semi-random web, and cross web made of staple fibers, wet papermaking web made of staple fibers, air-laid web, spunbond web made of long fibers, and meltblown web , As well as any fiber web such as a fiber web obtained by electrospinning (also called electrospinning).
• the nonwoven fabric is preferably produced using a web of staple fibers.
• the method for integrating the fibers of the fiber web is not particularly limited.
• the fiber when the fiber is a heat-adhesive core-sheath type composite fiber, or when the fiber constitutes a nonwoven fabric together with a heat-adhesive fiber (single fiber or core-sheath type composite fiber), a hot air blowing method or a heat embossing method
• the fibers may be integrated by a thermal bond method such as.
• the fibers may be integrated by a mechanical entanglement method such as a needle punch method and a hydroentanglement method.
• the synthetic fiber when the synthetic fiber is a heat-bondable core-sheath type composite fiber, a fiber web containing 50% by mass, 75% by mass or more, preferably 90% by mass or more, more preferably 100% by mass of the fiber of the present invention. It is preferable that fibers are thermally bonded to each other by the sheath component of the composite fiber in the nonwoven fabric after the non-woven fabric is produced and thermally bonded. Specifically, it is preferable that the sheath component of the composite fiber is softened or melted to fix the fibers to each other.
• Thermal adhesion by softening or melting of the sheath component is achieved by heat treatment using a hot embossing roll or hot air having a temperature equal to or higher than the softening point of the sheath component of the composite fiber and less than the melting point of the core component.
• the fiber entanglement method may be adopted to integrate the fibers.
• the hydroentanglement method may be combined with the thermal bond method.
• the conditions for the hydroentanglement treatment are set according to the basis weight, flexibility, and functionality of the nonwoven fabric to be finally obtained. In the case of forming a hole in the nonwoven fabric, it is preferable to set the conditions in consideration of that.
• a columnar water stream having a water pressure of 1 to 20 MPa is applied to one or both sides of a fiber web from a nozzle in which orifices having a hole diameter of 0.05 to 0.5 mm are provided at intervals of 0.5 to 1.5 mm. You may carry out by injecting 1 to 8 times each.
• the fiber assembly including the fiber of the present invention may include other fibers.
• Other fibers are not particularly limited, and include, for example, natural fibers such as cotton, silk and wool, viscose rayon, cupra, and solvent-spun cellulose fibers (for example, lentung lyocell (registered trademark) and tencel (registered trademark)). It may be a recycled fiber.
• the other fiber may be a synthetic fiber in which a fiber treatment agent other than the specific fiber treatment agent is attached to the fiber surface. Since the resin suitable for constituting the synthetic fiber and the form of the synthetic fiber are as described above, description thereof will be omitted here. Only one type of these fibers may be used, or two or more types may be used.
• the nonwoven fabric is preferably a heat-bonded nonwoven fabric.
• the synthetic fiber of the present invention or this and other fibers are mixed to produce a fiber web with a desired basis weight by the card method or air lay method, and then subjected to the entanglement treatment as necessary.
• a heat-bonded nonwoven fabric obtained by thermally bonding fibers is preferably used as a surface material for sanitary goods.
• a nonwoven fabric may be a laminated structure of the fiber web which contains the fiber of this invention (or consists only of this), and the fiber web which consists of another fiber.
• the surface material of the sanitary article contains 50% by mass or more, 75% by mass or more, preferably 90% by mass or more, more preferably 100% by mass,
• the body fluid of a person or animal can be quickly moved from the body to the absorber.
• the basis weight of the fiber aggregate containing the fiber of the present invention is not particularly limited, and is appropriately selected depending on the application.
• the basis weight is preferably 10 to 80 g / m 2 .
• the basis weight is preferably 20 to 100 g / m 2 .
• the basis weight is preferably 20 to 200 g / m 2 .
• the nonwoven fabric is preferably provided by being incorporated into a skin contact product. That is, this invention also provides the product for skin contact which used the said nonwoven fabric for at least one part.
• the “product for skin contact” refers to a product that is used in contact with the skin of a human or an animal other than a human.
• Body fluid absorbent articles specifically baby diapers, adult diapers, sanitary napkins, panty liners, incontinence pads, interlabial pads, breast milk pads, sweat removal sheets, animal excrement disposal materials, animal paper diapers, Animal urine absorption sheet
• Skin cover sheet specifically, face mask, base material for cosmetic / medical patch such as cold / warm patch, wound surface protection sheet, non-woven dressing, hemorrhoid pad, direct contact with skin Heating appliances (for example, disposable warmers), base fabrics for various animal patches, etc.
• Personal wipers makeup removal sheets, antiperspirant sheets, wiping wipes, etc.
• Disposable clothing such as disposable underwear and medical gowns, masks, animal wound protection clothing, and adhesive bandages Parts, bandages, medical gauze, etc.
• the nonwoven fabric containing the fibers of the present invention may constitute part or all of these products.
• the surface material may be composed of a nonwoven fabric containing the fiber of the present invention.
• the skin covering sheet in particular, only the portion covering the sensitive part may be composed of the nonwoven fabric containing the fiber of the present invention, or the entire skin covering sheet may be composed of the nonwoven fabric including the fiber of the present invention.
• a-1 Mannosyl erythritol lipid B (trade name: Ceramela (registered trademark), manufactured by Toyobo Co., Ltd.)
• a-2 Surfactin sodium (trade name: Kaneka Surfactin, manufactured by Kaneka Corporation)
• a-3 Sophoro lipid (trade name: ACS Sohoro, manufactured by Allied Carbon Solution Co., Ltd.)
• b-2 Polyoxypropylene diglycerin ether (average number of moles of propylene oxide added 14) (trade name: SC-P1000, manufactured by Sakamoto Pharmaceutical Co., Ltd.)
• b-3 Polyglycerin (an oil containing about 25% by mass of polyglycerin as a polyglycerin supply source (trade name: TES8327, manufactured by Takemoto Yushi Co., Ltd.
• Example 1 A high-density polyethylene having a melting point before spinning of 130 ° C., a melt flow rate according to JIS K6922-1 at a temperature of 190 ° C., a mass of 2.16 kgf of 20 g / 10 min, and a density of 0.952.
• Product name Nipolon Hard OS02H, manufactured by Tosoh Corporation), and polyethylene terephthalate having a melting point before spinning of 260 ° C.
• this undrawn yarn was subjected to a wet drawing treatment at a drawing temperature of 80 ° C. and a draw ratio of 2.67 to obtain a drawn yarn.
• a treatment agent obtained by mixing two components at the mixing ratio shown in the column of Example 1 in Table 1 was diluted with water so that the concentration of the treatment agent was 8.0% by mass to obtain a treatment solution. .
• the fiber length was cut to 44 mm with a cutter.
• a fiber web having a basis weight of 30 g / m 2 is prepared using a roller card, and a sheath component of the fiber is melted at a heat treatment temperature of 140 ° C. using a hot air spraying device.
• a thermally bonded nonwoven fabric was obtained by bonding.
• Examples 2 to 7, Comparative Examples 1 to 6, Reference Examples 1 to 3 As the fiber treating agent, those prepared by mixing the respective components in the proportions described in Examples 2 to 7, Comparative Examples 1 to 6, and Reference Examples 1 to 3 shown in Table 1 were used. Except for the above, fibers were obtained by the same procedure as that used when producing Example 1, a heat-bonded nonwoven fabric was prepared, and the amount of treatment agent attached to the fiber surface was determined by the above method. The results are shown in Table 1. In Examples 6 and 7, a fiber treatment agent was prepared using an oil agent containing 25% by mass of polyglycerin as polyglycerin of b-3. Regarding the ratio and the amount of component (b) in Table 1 Is based on the amount of polyglycerin, not the amount of oil.
• the adhesion rate of the treatment agent to the fiber surface was measured by a rapid extraction method using a rapid residual oil extraction device (SoxtecTM2055) manufactured by Foss Co., Ltd.
• a rapid residual oil extraction device SoxtecTM2055
• fibers treated with a fiber treatment agent cut to a predetermined length are dried with a hot air dryer (105 ° C. ⁇ 30 minutes), and then spread twice (opener), and then 8 g (W f ) of raw cotton
• a metal cylinder inner diameter 35 mm, length 75 mm, bottom part of 100 mesh plain woven wire mesh filter
• aluminum with ethanol / hexane (75/25) solvent 90 ml
• the adhesion amount of the treatment agent was 0.5% by mass with respect to the fiber mass. Multiply this adhesion amount by the content (mass%) of components (a) and (b) in the fiber treatment agent to determine the adhesion quantity (mass%) of components (a) and (b) relative to the fiber mass, It was shown in 1.
• the hydrophilicity of the nonwoven fabric of the obtained Example and each comparative example was evaluated.
• the hydrophilicity is evaluated by the run-off (RUN-OFF) test (method called EDNARUN-OFF test recommended by EDNA (European Disposables and Non-Wowens Association)), and specifically, by the following procedure. went.
• RUN-OFF run-off test
• EDNARUN-OFF test recommended by EDNA (European Disposables and Non-Wowens Association)
• the support base has a cross section of a substantially vertical isosceles triangle having an angle of 45 degrees with the horizontal plane. From the position of the upper end 1 cm and the height 1 cm on the surface of the nonwoven fabric, a total of 10 g of physiological saline colored blue is dropped at a rate of 2 g / 10 seconds with a burette, and all the poured physiological saline is absorbed by the nonwoven fabric, The position where the saline water droplet disappeared from the nonwoven fabric surface was measured, and the distance at which the saline water droplet flowed on the nonwoven fabric surface between the corresponding position and the position where the physiological saline was dropped onto the nonwoven fabric surface was determined. Table 1 shows the average value (mm) of run-off values (distance traveled) by performing 10 tests using 10 samples in each example.
• the non-woven fabric (sample size: 3 cm ⁇ 3 cm) obtained in Examples, Comparative Examples, or Reference Examples was attached to the inner side of the forearm where the amount of keratin moisture was measured, and the keratin after 120 minutes had passed in the attached state. The amount of water was measured. The amount of increase in the amount of keratin water was calculated by subtracting the amount of horny water before application from the amount of horny water after pasting. The results are shown in Table 1.
• Example 1 in contrast between Example 1 and Reference Example 1, when a-1 (MEL) and a glycerin compound are used in combination, the run-off value is smaller than that in the case of the glycerin compound alone (Reference Example 1). It was confirmed that the hydrophilicity of the fibers was improved by the combined use. Therefore, it was confirmed that by using MEL in combination with the glycerin compound, not only can the moisture retention inherent to MEL be imparted to the fiber, but also the hydrophilicity imparting effect of glycerin can be improved.

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