Classifications

• • 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
  • 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
  • A61L15/20—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing organic materials
• • 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
  • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
• • 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
  • 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
  • D04H1/542—Adhesive fibres
  • D04H1/544—Olefin series
• • 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
  • D06M13/244—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 sulfur or phosphorus
  • D06M13/282—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 sulfur or phosphorus with compounds containing phosphorus
  • D06M13/285—Phosphines; Phosphine oxides; Phosphine sulfides; Phosphinic or phosphinous acids 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
  • 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
  • D06M13/244—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 sulfur or phosphorus
  • D06M13/282—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 sulfur or phosphorus with compounds containing phosphorus
  • D06M13/288—Phosphonic or phosphonous acids 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
  • 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
  • D06M13/244—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 sulfur or phosphorus
  • D06M13/282—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 sulfur or phosphorus with compounds containing phosphorus
  • D06M13/292—Mono-, di- or triesters of phosphoric or phosphorous acids; Salts thereof

Definitions

• the present invention relates to a water permeability imparting agent, a treatment agent for nonwoven fabric manufacturing, and the use thereof.
• absorbent articles such as sanitary napkins, represented by paper diapers and synthetic napkins, often have a three-layer structure consisting of a top sheet made of various nonwoven fabrics mainly made of fibers containing at least one type of thermoplastic resin (polyolefin fibers, polyester fibers, etc.) that have been given water permeability, a back sheet made of water repellency, and a material made of cotton-like pulp or polymer absorbent placed between the top sheet and the back sheet.
• thermoplastic resin polyolefin fibers, polyester fibers, etc.
• Liquids such as urine and body fluids pass through the top sheet and are absorbed into the absorbent, but the top sheet must have good water permeability, that is, instantaneous water permeability so that the time it takes for the liquid to be completely absorbed from the top sheet into the absorbent inside is extremely short.
• the use of a synthetic fiber treatment agent described in Patent Document 1 has been disclosed.
• the treatment agent described in Patent Document 1 is, for example, a treatment agent mainly composed of an alkyl phosphate salt in combination with a nonionic surfactant or a cationic surfactant, but there are problems with reduced workability due to foam flow-out during aqueous solution preparation and roller contamination by foam, etc. When the cause of such problems was investigated, it was found that treatment agents containing these components are prone to foaming and have high foam stability. Therefore, an object of the present invention is to provide a water-permeability imparting agent having excellent foam-suppressing properties, a fiber having the imparting agent attached thereto, a nonwoven fabric having the imparting agent attached thereto, an absorbent article comprising the nonwoven fabric, and a method for producing a fiber using the imparting agent.
• a further object of the present invention is to provide a treatment agent for producing nonwoven fabrics having excellent foam-suppressing properties, fibers having the treatment agent adhered thereto, nonwoven fabrics having the treatment agent adhered thereto, absorbent articles comprising the nonwoven fabrics, and a method for producing fibers using the treatment agent.
• the above-mentioned problems can be solved by a water-permeability imparting agent that contains a specific compound (A) and a specific compound (B) and at least one selected from a specific compound (C), a specific compound (D) and an inorganic phosphoric acid (salt) (IN), wherein the acid value of the non-volatile content of the water-permeability imparting agent is 0.5 to 450 mg KOH/g, and the ratio of P1 to the sum (P1+P2+P3) of specific peak areas P1 to P3 in a spectrum measured by P-nuclear NMR of the non-volatile content of the water-permeability imparting agent [P1/(P1+P2+P3)] is 40 to 100%.
• a treatment agent for the production of nonwoven fabric which comprises a specific compound (A) and a specific compound (B), and at least one selected from a specific compound (C), a specific compound (D), and an inorganic phosphoric acid (salt) (IN), wherein the acid value of the nonvolatile content of the treatment agent for the production of nonwoven fabric is 0.5 to 450 mg KOH/g, and the ratio of P1 to the sum (P1+P2+P3) of specific peak areas P1 to P3 in a spectrum measured by P nuclear NMR of the nonvolatile content of the treatment agent for the production of nonwoven fabric, [P1/(P1+P2+P3)], is 40 to 100%.
• a water-permeability-imparting agent comprising a compound (A) represented by the following general formula (1) and a compound (B) represented by the following general formula (2), and at least one selected from a compound (C) represented by the following general formula (3), a compound (D) represented by the following general formula (4), and an inorganic phosphoric acid (salt) (IN), wherein the acid value of the non-volatile content of the water-permeability-imparting agent is 0.5 to 450 mg KOH/g, and the ratio of P1 to the sum (P1+P2+P3) of the following peak areas P1 to P3 in a spectrum measured by P nuclear NMR of the non-volatile content of the water-permeability-imparting agent is 40 to 100% [P1/(P1+P2+P3)].
• R 1 is a branched hydrocarbon group having 6 to 22 carbon atoms.
• AO is an oxyalkylene group having 2 to 4 carbon atoms, and m is an integer of 0 to 20.
• M 1 and M 2 are each independently a hydrogen atom, an alkali metal, ammonium, phosphonium, an organic amine, or a quaternary ammonium.)
• R2 and R3 are each independently a hydrocarbon group having 6 to 22 carbon atoms, and at least one selected from R2 and R3 has a branch.
• AO is an oxyalkylene group having 2 to 4 carbon atoms, and m is an integer of 0 to 20.
• M1 is a hydrogen atom, an alkali metal, ammonium, phosphonium, an organic amine or a quaternary ammonium.
• R 4 is a hydrocarbon group having 6 to 22 carbon atoms.
• AO is an oxyalkylene group having 2 to 4 carbon atoms, and m is an integer from 0 to 20.
• M 1 and M 2 are each independently a hydrogen atom, an alkali metal, ammonium, phosphonium, an organic amine, or a quaternary ammonium.
• Q is M 2 or -(AO) m R 5.
• R 5 is a hydrocarbon group having 6 to 22 carbon atoms.
• Y is 1 or 2.
• R 4 When Q is M 2 , R 4 has a branch, and when Q is -(AO) m R 5 , at least one selected from R 4 and R 5 has a branch.)
• R 6 , R 7 and R 8 are each independently a hydrocarbon group having 6 to 22 carbon atoms, and at least one selected from R 6 , R 7 and R 8 is branched.
• AO is an oxyalkylene group having 2 to 4 carbon atoms, and m is an integer from 0 to 20.
• the compound (A) includes a compound represented by the general formula (1) in which m is an integer of 1 to 16,
• the compound (B) includes a compound in which at least one of m in the general formula (2) is an integer of 1 to 16,
• the compound (C) includes a compound in which at least one of m in the general formula (3) is an integer of 1 to 16,
• the compound (A) includes a compound represented by the general formula (1) in which R 1 has 8 to 16 carbon atoms
• the compound (B) includes a compound represented by the general formula (2) in which R 2 and R 3 each independently have 8 to 16 carbon atoms
• the compound (C) includes a compound in which R 4 and R 5 in the general formula (3) each independently have 8 to 16 carbon atoms
• the water permeability imparting agent according to any one of ⁇ 1> to ⁇ 3>, wherein the compound (D) includes a compound in which R 6 , R 7 and R 8 in the general formula (4) each independently have 8 to 16 carbon atoms.
• ⁇ 5> The water permeability imparting agent according to any one of ⁇ 1> to ⁇ 4>, wherein a total ratio of the compound (A), the compound (B), the compound (C), the compound (D) and the inorganic phosphate (salt) (IN) to a non-volatile content of the water permeability imparting agent is 5 to 95% by weight.
• ⁇ 6> The water permeability imparting agent according to any one of ⁇ 1> to ⁇ 5>, further comprising a nonionic surfactant (E).
• ⁇ 7> A fiber to which the water permeability imparting agent according to any one of ⁇ 1> to ⁇ 6> is imparted.
• ⁇ 8> A nonwoven fabric having the water permeability imparting agent according to any one of ⁇ 1> to ⁇ 6> imparted thereto.
• ⁇ 9> A water-absorbent article comprising the nonwoven fabric according to ⁇ 8>.
• ⁇ 10> A method for producing a fiber, comprising a step of providing a water-permeability imparting agent according to any one of ⁇ 1> to ⁇ 6> to a raw fiber.
• a treatment agent for nonwoven fabric production comprising a compound (A) represented by the following general formula (1) and a compound (B) represented by the following general formula (2), and at least one selected from a compound (C) represented by the following general formula (3), a compound (D) represented by the following general formula (4), and an inorganic phosphoric acid (salt) (IN), wherein the acid value of the nonvolatile content of the treatment agent for nonwoven fabric production is 0.5 to 450 mg KOH/g, and the ratio of P1 to the sum (P1+P2+P3) of the areas of the following peaks P1 to P3 in a spectrum measured by P nuclear NMR is 40 to 100%.
• R 1 is a branched hydrocarbon group having 6 to 22 carbon atoms.
• AO is an oxyalkylene group having 2 to 4 carbon atoms, and m is an integer of 0 to 20.
• M 1 and M 2 are each independently a hydrogen atom, an alkali metal, ammonium, phosphonium, an organic amine, or a quaternary ammonium.)
• R2 and R3 are each independently a hydrocarbon group having 6 to 22 carbon atoms, and at least one selected from R2 and R3 has a branch.
• AO is an oxyalkylene group having 2 to 4 carbon atoms, and m is an integer of 0 to 20.
• M1 is a hydrogen atom, an alkali metal, ammonium, phosphonium, an organic amine or a quaternary ammonium.
• R 4 is a hydrocarbon group having 6 to 22 carbon atoms.
• AO is an oxyalkylene group having 2 to 4 carbon atoms, and m is an integer from 0 to 20.
• M 1 and M 2 are each independently a hydrogen atom, an alkali metal, ammonium, phosphonium, an organic amine, or a quaternary ammonium.
• Q is M 2 or -(AO) m R 5.
• R 5 is a hydrocarbon group having 6 to 22 carbon atoms.
• Y is 1 or 2.
• R 4 When Q is M 2 , R 4 has a branch, and when Q is -(AO) m R 5 , at least one selected from R 4 and R 5 has a branch.)
• R 6 , R 7 and R 8 are each independently a hydrocarbon group having 6 to 22 carbon atoms, and at least one selected from R 6 , R 7 and R 8 is branched.
• AO is an oxyalkylene group having 2 to 4 carbon atoms, and m is an integer from 0 to 20.
• the compound (A) includes a compound represented by the general formula (1) in which m is an integer of 1 to 16,
• the compound (B) includes a compound in which at least one of m in the general formula (2) is an integer of 1 to 16,
• the compound (C) includes a compound in which at least one of m in the general formula (3) is an integer of 1 to 16,
• the compound (A) includes a compound represented by the general formula (1) in which R 1 has 8 to 16 carbon atoms
• the compound (B) includes a compound represented by the general formula (2) in which R 2 and R 3 each independently have 8 to 16 carbon atoms
• the compound (C) includes a compound represented by the general formula (3) in which R 4 and R 5 each independently have 8 to 16 carbon atoms
• the treating agent for production of nonwoven fabric according to any one of ⁇ 11> to ⁇ 13>, wherein the compound (D) includes a compound in which R 6 , R 7 and R 8 in the general formula (4) each independently have 8 to 16 carbon atoms.
• ⁇ 15> The treatment agent for production of nonwoven fabric according to any one of ⁇ 11> to ⁇ 14>, wherein a total ratio of the compound (A), the compound (B), the compound (C), the compound (D), and the inorganic phosphoric acid (salt) (IN) to a non-volatile content of the treatment agent for production of nonwoven fabric is 5 to 95% by weight.
• ⁇ 16> The treatment agent for production of nonwoven fabric according to any one of ⁇ 11> to ⁇ 15>, further comprising a nonionic surfactant (E).
• E nonionic surfactant
• ⁇ 18> A nonwoven fabric to which the treatment agent for producing nonwoven fabric according to any one of ⁇ 11> to ⁇ 16> is applied.
• ⁇ 19> A water-absorbent article comprising the nonwoven fabric according to ⁇ 18>.
• ⁇ 20> A method for producing fibers, comprising a step of applying the treating agent for nonwoven fabric production according to any one of ⁇ 11> to ⁇ 16> to raw fibers.
• the water permeability imparting agent of the present invention has excellent foam suppressing properties.
• the treating agent for producing nonwoven fabric of the present invention has excellent foam-suppressing properties.
• the water permeability imparting agent of the first embodiment and the treatment agent for nonwoven fabric production of the second embodiment contain a compound (A) represented by the above general formula (1) and a compound (B) represented by the above general formula (2), and at least one selected from a compound (C) represented by the above general formula (3), a compound (D) represented by the above general formula (4), and an inorganic phosphoric acid (salt) (IN). These are explained in detail below.
• the compound (A) is a compound represented by the above general formula (1).
• R 1 is a branched hydrocarbon group having 6 to 22 carbon atoms.
• the upper limit of the carbon number is preferably 16, more preferably 14, and even more preferably 12, and the lower limit of the carbon number is preferably 6, more preferably 7, and even more preferably 8.
• the upper limit of the carbon number is preferably 20, more preferably 18, and even more preferably 16, and the lower limit of the carbon number is preferably 10, more preferably 11, and even more preferably 12.
• the hydrocarbon group include an alkyl group.
• AO is an oxyalkylene group having 2 to 4 carbon atoms.
• m which is the number of repetitions of the oxyalkylene unit, is an integer of 0 to 20.
• the upper limit of the number of repetitions m is preferably 20, more preferably 18, and even more preferably 16, and the lower limit of the number of repetitions m is preferably 3, more preferably 5, and even more preferably 7.
• the upper limit of the number of repetitions m is preferably 9, more preferably 8, and even more preferably 7, and the lower limit of the number of repetitions m is preferably 0, more preferably 1, and even more preferably 2.
• the number of repetitions m is preferably 3 to 20, and in terms of instantaneous water permeability and repeated water permeability, the number of repetitions m is more preferably 0 to 9.
• (AO)m preferably contains, as an oxyalkylene unit, at least one selected from an oxyethylene unit and an oxypropylene unit, more preferably contains an oxyethylene unit, and further preferably has 50 mol % or more of oxyethylene units.
• M1 and M2 are each independently a hydrogen atom, an alkali metal, ammonium, phosphonium, an organic amine, or a quaternary ammonium. From the viewpoint of emulsion stability and antistatic properties, M1 and M2 are preferably a hydrogen atom or an alkali metal. M1 and M2 may be the same or different.
• the alkali metal includes potassium, sodium, lithium, etc., and from the viewpoints of emulsion stability and antistatic properties, potassium or sodium is preferred.
• the organic amine include alkanolamines such as ethanolamine, diethanolamine, and triethanolamine, and triethylamine. Examples of quaternary ammonium include alkyltrimethylammonium and dialkyldimethylammonium.
• compound (A) include, but are not limited to, mono 2-ethylhexyl phosphate, mono potassium salt of mono 2-ethylhexyl phosphate, mono potassium salt of mono 2-ethylhexyl phosphate, polyoxyethylene 8 moles added mono 2-ethylhexyl phosphate, polyoxyethylene 8 moles added mono 2-ethylhexyl phosphate, polyoxyethylene 8 moles added mono potassium salt of mono 2-ethylhexyl phosphate, polyoxyethylene 8 moles added mono potassium salt of mono 2-ethylhexyl phosphate, monoisolauryl phosphate, mono potassium salt of monoisolauryl phosphate, mono potassium salt of monoisolauryl phosphate, polyoxyethylene
• phosphates include monoisolauryl phosphate with 9 moles of ethylene added, monoisolauryl phosphate monopotassium salt with 9 moles of polyoxyethylene added, monoisolauryl phosphate dipotassium salt with 9
• monoisolauryl phosphate monopotassium salt in terms of instantaneous water permeability and repeated water permeability, monoisolauryl phosphate monopotassium salt, monoisolauryl phosphate dipotassium salt, monoisostearyl phosphate monopotassium salt, and monoisostearyl phosphate dipotassium salt are preferred.
• the compound (B) is a compound represented by the above general formula (2).
• R2 and R3 are each independently a hydrocarbon group having 6 to 22 carbon atoms.
• the upper limit of the carbon number is preferably 16, more preferably 14, and even more preferably 12, and the lower limit of the carbon number is preferably 6, more preferably 7, and even more preferably 8.
• the upper limit of the carbon number is preferably 20, more preferably 18, and even more preferably 16, and the lower limit of the carbon number is preferably 10, more preferably 11, and even more preferably 12.
• At least one selected from R2 and R3 has a branch, and it is preferable from the viewpoint of foam suppression that R2 and R3 each have a branch.
• R2 and R3 may be the same or different.
• AO is an oxyalkylene group having 2 to 4 carbon atoms.
• m which is the number of repetitions of the oxyalkylene unit, is an integer of 0 to 20.
• the upper limit of the number of repetitions m is preferably 20, more preferably 18, and even more preferably 16, and the lower limit of the number of repetitions m is preferably 3, more preferably 5, and even more preferably 7.
• the upper limit of the number of repetitions m is preferably 9, more preferably 8, and even more preferably 7, and the lower limit of the number of repetitions m is preferably 0, more preferably 1, and even more preferably 2.
• M 1 is a hydrogen atom, an alkali metal, ammonium, phosphonium, an organic amine or a quaternary ammonium. From the viewpoints of emulsion stability and antistatic properties, M 1 is preferably a hydrogen atom or an alkali metal.
• the alkali metal includes potassium, sodium, lithium, etc., and from the viewpoints of emulsion stability and antistatic properties, potassium or sodium is preferred.
• the organic amine include alkanolamines such as ethanolamine, diethanolamine, and triethanolamine, and triethylamine.
• quaternary ammonium include alkyltrimethylammonium and dialkyldimethylammonium.
• compound (B) include, but are not limited to, di-2-ethylhexyl phosphate, di-2-ethylhexyl phosphate potassium salt, di(polyoxyethylene 8-mol-added mono-2-ethylhexyl) phosphate, di(polyoxyethylene 8-mol-added mono-2-ethylhexyl) phosphate potassium salt, diisolauryl phosphate, diisolauryl phosphate potassium salt, di(polyoxyethylene 9-mol-added monoisolauryl) phosphate, di(polyoxyethylene 9-mol-added monoisolauryl) phosphate, Examples of such phosphates include di(polyoxyethylene 9-mol-added monoisolauryl)phosphate potassium salt, diisostearyl phosphate, diisostearyl phosphate potassium salt, di(polyoxyethylene 15-mol-added monoisostearyl)phosphate, di(polyoxyethylene 15-mol-added mono
• di-2-ethylhexyl phosphate potassium salt, diisolauryl phosphate potassium salt, and diisostearyl phosphate potassium salt are preferred in terms of instantaneous water permeability and repeated water permeability.
• di(polyoxyethylene 8-mol-added mono 2-ethylhexyl)phosphate potassium salt, di(polyoxyethylene 9-mol-added monoisolauryl)phosphate, and di(polyoxyethylene 15-mol-added monoisostearyl)phosphate potassium salt are preferred in terms of foam suppression.
• the compound (C) is a compound represented by the above general formula (3), and it is preferable that the water permeability imparting agent of the first embodiment and the treatment agent for nonwoven fabric production of the second embodiment contain the compound (C) in terms of foam-inhibiting properties.
• R 4 and R 5 are each independently a hydrocarbon group having 6 to 22 carbon atoms.
• the upper limit of the carbon number is preferably 16, more preferably 14, and even more preferably 12, and the lower limit of the carbon number is preferably 6, more preferably 7, and even more preferably 8.
• the upper limit of the carbon number is preferably 20, more preferably 18, and even more preferably 16, and the lower limit of the carbon number is preferably 10, more preferably 11, and even more preferably 12.
• the lower limit of the carbon number is preferably 10, more preferably 11, and even more preferably 12.
• the upper limit of the carbon number is preferably 20, more preferably 18, and even more preferably 16, and the lower limit of the carbon number is preferably 10, more preferably 11, and even more preferably 12.
• 6 to 16 is preferable
• 10 to 20 is preferable.
• AO is an oxyalkylene group having 2 to 4 carbon atoms.
• m which is the number of repetitions of the oxyalkylene unit, is an integer of 0 to 20.
• the upper limit of the number of repetitions m is preferably 20, more preferably 18, and even more preferably 16, and the lower limit of the number of repetitions m is preferably 3, more preferably 5, and even more preferably 7.
• the upper limit of the number of repetitions m is preferably 9, more preferably 8, and even more preferably 7, and the lower limit of the number of repetitions m is preferably 0, more preferably 1, and even more preferably 2.
• M1 and M2 are each independently a hydrogen atom, an alkali metal, ammonium, phosphonium, an organic amine, or a quaternary ammonium. From the viewpoint of emulsion stability and antistatic properties, M1 and M2 are preferably a hydrogen atom or an alkali metal. M1 and M2 may be the same or different.
• the alkali metal includes potassium, sodium, lithium, etc., and from the viewpoints of emulsion stability and antistatic properties, potassium or sodium is preferred.
• the organic amine include alkanolamines such as ethanolamine, diethanolamine, and triethanolamine, and triethylamine. Examples of quaternary ammonium include alkyltrimethylammonium and dialkyldimethylammonium.
• Q is M2 or -( AO ) mR5 .
• Y is 1 or 2. When there are two or more M2 's in a molecule, they may be the same or different.
• compound (C) include, but are not limited to, pyro-2-ethylhexyl phosphate (potassium salt), pyro(2-ethylhexyl with 8 moles of polyoxyethylene added) phosphate (potassium salt), pyroisolauryl phosphate (potassium salt), pyro(isolauryl with 9 moles of polyoxyethylene added) phosphate (potassium salt), pyroisostearyl phosphate (potassium salt), pyro(isostearyl with 15 moles of polyoxyethylene added) phosphate (potassium salt), etc.
• pyro-2-ethylhexyl phosphate (potassium salt), pyroisolauryl phosphate (potassium salt), and pyroisostearyl phosphate (potassium salt) are preferred in terms of instantaneous water permeability and repeated water permeability.
• pyro(8-mol polyoxyethylene-added 2-ethylhexyl) phosphate (potassium salt)
• pyro(9-mol polyoxyethylene-added isolauryl) phosphate (potassium salt)
• pyro(15-mol polyoxyethylene-added isostearyl) phosphate (potassium salt) are preferred.
• the compound (D) is a compound represented by the above general formula (4).
• the water permeability imparting agent of the first embodiment and the treatment agent for production of a nonwoven fabric of the second embodiment preferably contain the compound (D) in terms of foam-inhibiting properties.
• R 6 , R 7 and R 8 are each independently a hydrocarbon group having 6 to 22 carbon atoms, and from the viewpoint of instantaneous water permeability, the upper limit of the carbon number is preferably 16, more preferably 14, and even more preferably 12, and the lower limit of the carbon number is preferably 6, more preferably 7, and even more preferably 8.
• the upper limit of the carbon number is preferably 20, more preferably 18, and even more preferably 16, and the lower limit of the carbon number is preferably 10, more preferably 11, and even more preferably 12.
• 6 to 16 is preferable, and from the viewpoint of repeated water permeability, 10 to 20 is preferable.
• At least one selected from R 6 , R 7 and R 8 has a branch, and it is preferable from the viewpoint of foam suppression that R 6 , R 7 and R 8 have a branch.
• R 6 , R 7 and R 8 may be the same or different.
• AO is an oxyalkylene group having 2 to 4 carbon atoms.
• m which is the number of repetitions of the oxyalkylene unit, is an integer of 0 to 20.
• the upper limit of the number of repetitions m is preferably 20, more preferably 18, and even more preferably 16, and the lower limit of the number of repetitions m is preferably 3, more preferably 5, and even more preferably 7.
• the upper limit of the number of repetitions m is preferably 9, more preferably 8, and even more preferably 7, and the lower limit of the number of repetitions m is preferably 0, more preferably 1, and even more preferably 2.
• compound (D) include, but are not limited to, tri-2-ethylhexyl phosphate, tri-(2-ethylhexyl with 8 moles of polyoxyethylene added) phosphate, triisolauryl phosphate, tri-(isolauryl with 9 moles of polyoxyethylene added) phosphate, triisostearyl phosphate, tri-(isostearyl with 15 moles of polyoxyethylene added) phosphate, di-2-ethylhexyl monooctyl phosphate, di-(2-ethylhexyl with 8 moles of polyoxyethylene added) monooctyl phosphate, etc.
• tri-2-ethylhexyl phosphate, triisolauryl phosphate, and triisostearyl phosphate are preferred in terms of instantaneous water permeability and repeated water permeability.
• tri-(2-ethylhexyl with 8 moles of polyoxyethylene added) phosphate, tri-(isolauryl with 9 moles of polyoxyethylene added) phosphate, and tri-(isostearyl with 15 moles of polyoxyethylene added) phosphate are preferred in terms of foam suppression.
• the water-permeability imparting agent of the first embodiment and the treating agent for production of nonwoven fabric of the second embodiment preferably contain inorganic phosphoric acid (salt) (IN) from the viewpoint of foam suppression.
• the inorganic phosphoric acid (salt) (IN) is at least one selected from phosphoric acid, metal dihydrogen phosphate, dimetal hydrogen phosphate, and trimetal phosphate.
• the monometal dihydrogen phosphate includes monopotassium dihydrogen phosphate, monosodium dihydrogen phosphate, etc.
• the dimetal hydrogen phosphate includes dipotassium hydrogen phosphate, disodium hydrogen phosphate, etc.
• the trimetal phosphate includes tripotassium phosphate, trisodium phosphate, etc.
• Nonionic Surfactant (E) The water permeability imparting agent of the first embodiment and the treating agent for production of nonwoven fabric of the second embodiment preferably contain a nonionic surfactant (E) from the viewpoints of repeated water permeability and emulsion stability.
• the nonionic surfactant (E) is not particularly limited, but preferred examples include ester compounds (E1) having a structure in which a polyhydric alcohol and a fatty acid are ester-bonded and having one or more hydroxyl groups in the molecule, polyoxyalkylene castor oil ethers (E2), polyoxyalkylene hydrogenated castor oil ethers (E3), polyoxyalkylene aliphatic alcohol ethers (E4), PEG esters (E5), and polycarboxylate esters (E6).
• ester compounds (E1) having a structure in which a polyhydric alcohol and a fatty acid are ester-bonded and having one or more hydroxyl groups in the molecule
• polyoxyalkylene castor oil ethers E2
• polyoxyalkylene hydrogenated castor oil ethers E3
• polyoxyalkylene aliphatic alcohol ethers E4
• PEG esters E5
• polycarboxylate esters E6
• the ester compound (E1) is a compound that has a structure in which a polyhydric alcohol and a fatty acid are ester-bonded, and has one or more hydroxyl groups in the molecule.
• the polyhydric alcohol that is a constituent element of the ester compound (E1) is not particularly limited, but sorbitol and glycerin are preferred in terms of instantaneous water permeability and foam suppressing properties.
• the fatty acid that is a constituent element of the ester compound (E1) is not particularly limited, but from the viewpoints of instantaneous water permeability and foam suppression, saturated and/or unsaturated fatty acids having 12 to 18 carbon atoms are preferred.
• the ester compound (E1) is not particularly limited, but from the viewpoints of instantaneous water permeability and foam-suppressing property, sorbitan monoesters, sorbitan diesters, sorbitan triesters, glycerin monoesters, glycerin diesters, and polyglycerin esters are preferred, and sorbitan monoesters are more preferred.
• sorbitan monoesters include sorbitan monostearate, sorbitan monooleate, sorbitan monopalmitate, and sorbitan monolaurate.
• Examples of sorbitan diesters include sorbitan distearate, sorbitan dioleate, sorbitan dipalmitate, and sorbitan dilaurate.
• Examples of sorbitan triesters include sorbitan tristearate, sorbitan trioleate, sorbitan tripalmitate, and sorbitan trilaurate.
• Examples of glycerin monoesters include glycerin monostearate and glycerin monooleate.
• Examples of glycerin diesters include glycerin distearate, glycerin dioleate, glycerin dipalmitate, and glycerin dilaurate.
• Examples of polyglycerin esters include hexaglycerin monostearate.
• the polyoxyalkylene castor oil ether (E2) is a compound having a structure in which an alkylene oxide such as ethylene oxide, propylene oxide, or butylene oxide is added to castor oil.
• the polyoxyalkylene castor oil ether (E2) is not particularly limited, but examples thereof include polyoxyethylene castor oil ether (polyoxyethylene (1 to 25 mol) castor oil ether).
• Polyoxyalkylene hydrogenated castor oil ether is a compound with a structure in which an alkylene oxide such as ethylene oxide, propylene oxide, or butylene oxide is added to hydrogenated castor oil.
• alkylene oxide such as ethylene oxide, propylene oxide, or butylene oxide
• polyoxyethylene hydrogenated castor oil ether (E3) include, but are not limited to, polyoxyethylene hydrogenated castor oil ether (polyoxyethylene (1 to 25 moles) hydrogenated castor oil ether).
• the polyoxyalkylene aliphatic alcohol ether (E4) is a compound having a structure in which an alkylene oxide such as ethylene oxide, propylene oxide, or butylene oxide is added to an aliphatic monohydric alcohol and/or an aliphatic polyhydric alcohol.
• the aliphatic monohydric alcohol constituting the polyoxyalkylene aliphatic alcohol ether (E4) is not particularly limited, but from the viewpoint of instantaneous water permeability, alcohols having 8 to 18 carbon atoms are preferred, and octyl alcohol, 2-ethylhexyl alcohol, decyl alcohol, lauryl alcohol, tridecyl alcohol, myristyl alcohol, stearyl alcohol, isostearyl alcohol, and oleyl alcohol are more preferred.
• the aliphatic polyhydric alcohol constituting the polyoxyalkylene aliphatic alcohol ether (E4) is not particularly limited, but from the viewpoint of instantaneous water permeability, alcohols having 8 to 18 carbon atoms are preferred, and glycerin, sorbitol, sorbitan, and trimethylolpropane are more preferred.
• the number of moles of alkylene oxide added to the polyoxyalkylene aliphatic alcohol ether (E4) is preferably 1 to 100 moles in terms of instantaneous water permeability.
• the upper limit of the number of moles added is more preferably 70 moles, even more preferably 50 moles, and particularly preferably 30 moles.
• the lower limit of the number of moles added is more preferably 2 moles, even more preferably 3 moles, and particularly preferably 4 moles. Also, for example, 2 to 70 moles is more preferable, and 3 to 50 moles is even more preferable.
• the proportion of ethylene oxide to the total alkylene oxide is not particularly limited, but is preferably 20 mol% or more, more preferably 30 mol% or more, and even more preferably 40 mol% or more in terms of instantaneous water permeability.
• the upper limit of the proportion of ethylene oxide is preferably 100 mol% or less, more preferably 95 mol% or less, and even more preferably 90 mol% or less in terms of foam suppression.
• the polyoxyalkylene aliphatic alcohol ether (E4) is not particularly limited, but examples thereof include polyoxyalkylene aliphatic alcohol ethers (polyoxyethylene (1-20 moles) stearyl ether, polyoxyethylene (1-20 moles) oleyl ether, polyoxyalkylene (1-20 moles) palmityl ether, polyoxyalkylene (1-20 moles) lauryl ether).
• the polyoxyalkylene group in the polyoxyalkylene aliphatic alcohol ether (E4) includes a polyoxyalkylene group composed of oxyethylene units and/or oxypropylene units, and preferably contains oxyethylene units. When the polyoxyalkylene group contains oxyethylene units and oxypropylene units, the addition type of the oxyethylene units and oxypropylene units may be block or random.
• PEG means polyethylene glycol, and refers to an ester of polyethylene glycol (hereinafter, referred to as PEG ester) having a structure in which a hydroxyl group of PEG and a monovalent fatty acid are esterified.
• the number of carbon atoms of the monovalent fatty acid is not particularly limited, but from the viewpoint of foam-suppressing property, it is preferably 4 to 24.
• the upper limit of the carbon number is more preferably 22, and even more preferably 20.
• the lower limit of the carbon number is more preferably 10, and even more preferably 12. Also, for example, 10 to 22 is more preferable, and 12 to 20 is even more preferable.
• the monovalent fatty acid may be a saturated fatty acid or an unsaturated fatty acid.
• PEG ester (E5) include polyoxyethylene (1 to 20 mol) stearyl ester, polyoxyethylene (1 to 20 mol) oleyl ester, polyoxyethylene (1 to 20 mol) palmityl ester, and polyoxyethylene (1 to 20 mol) lauryl ester.
• the polycarboxylate (E6) is a compound having a structure in which a polycarboxylate and a polyol are bonded via an ester bond.
• the polycarboxylic acid is preferably a divalent or higher carboxylic acid having 10 to 66 carbon atoms.
• Examples of the polycarboxylic acid include sebacic acid, oleic acid dimer, erucic acid dimer, oleic acid trimer, and erucic acid trimer.
• a dimer acid of an unsaturated fatty acid having 18 to 22 carbon atoms is preferable, and a dimer acid of an unsaturated fatty acid having 18 carbon atoms is more preferable.
• the polycarboxylic acid may be an aliphatic polycarboxylic acid or an aromatic polycarboxylic acid, and is preferably an aliphatic polycarboxylic acid.
• the polyol is a dihydric or higher alcohol having an oxyalkylene group having 2 to 3 carbon atoms in the molecule.
• the polyol is not particularly limited as long as it is a dihydric or higher alcohol and has a (poly)oxyalkylene group in the molecule, but examples thereof include polyalkylene glycols composed of oxyethylene units and/or oxypropylene units, polyoxyalkylene sorbitan, polyoxyalkylene sorbitan fatty acid esters, polyoxyalkylene glycerin, polyoxyalkylene polyglycerin, polyoxyalkylene polyglycerin esters, etc. Among them, polyalkylene glycols composed of oxyethylene units and/or oxypropylene units are preferred.
• polyalkylene glycols composed of oxyethylene units and/or oxypropylene units include polyoxyethylene glycol, polypropylene glycol, polyoxyethylene polyoxypropylene glycol, etc.
• Polyoxyethylene polyoxypropylene glycol may be a block or random type.
• polyalkylene glycols composed of oxyethylene units and/or oxypropylene units include polyoxyethylene glycol.
• the number average molecular weight of the polyalkylene glycol is preferably from 100 to 10,000, more preferably from 200 to 2,000, and even more preferably from 400 to 1,000.
• the water permeability imparting agent of the first embodiment and the treatment agent for nonwoven fabric production of the second embodiment may contain, as other components, the following anionic surfactant (F), amphoteric surfactant (G), and modified silicone (H), from the viewpoint of exerting the effects of the present invention.
• the anionic surfactant (F) is not particularly limited as long as it is an anionic surfactant other than compound (A), compound (B), compound (C) and compound (D), but alkyl sulfate salts, alkyl sulfonate salts, dialkyl sulfosuccinate salts, etc. are preferred.
• alkyl sulfate salt examples include alkyl sulfate salts having a structure obtained by sulfating and neutralizing a polyhydric alcohol fatty acid ester.
• the method of sulfation is not particularly limited, and known methods can be used using fuming sulfuric acid, concentrated sulfuric acid, chlorosulfonic acid, sulfur trioxide gas, etc.
• the method of neutralization is not particularly limited, and known methods can be used.
• Examples of basic substances used for neutralization include alkali metal carbonates such as sodium carbonate and potassium carbonate, alkali metal hydrogen carbonates such as sodium hydrogen carbonate and potassium hydrogen carbonate, alkali metal hydroxides such as sodium hydroxide, potassium hydroxide, and lithium hydroxide, oxides and hydroxides of alkaline earth metals such as calcium oxide, calcium hydroxide, magnesium oxide, and magnesium hydroxide, ammonia, mono-, di-, and trialkanolamines having 2 to 4 carbon atoms in the hydroxyalkyl chain, and primary, secondary, and tertiary alkylamines having 1 to 4 carbon atoms in the alkyl chain. Two or more types of basic substances may be used in combination.
• the fatty acid used in the synthesis of the polyhydric alcohol fatty acid ester essentially contains an unsaturated fatty acid, and may contain a saturated fatty acid, a hydroxy fatty acid, a hydroxy unsaturated fatty acid, or the like.
• a polyhydric alcohol fatty acid ester sulfate salt is preferred.
• Dialkyl sulfosuccinate salts are dialkyl esters of succinic acid having a sulfonate group at the ⁇ -position.
• the number of carbon atoms in the alkyl group constituting the dialkyl ester is preferably 6 to 18.
• the upper limit of the alkyl group is more preferably 16, further preferably 14, and particularly preferably 13.
• the lower limit of the alkyl group is more preferably 7, further preferably 8, and particularly preferably 9. Also, for example, 8 to 18 is more preferable, and 10 to 13 is more preferable.
• the water-permeability imparting agent of the first embodiment and the treatment agent for nonwoven fabric production of the second embodiment contain a compound (A) represented by the above general formula (1) and a compound (B) represented by the above general formula (2), and at least one selected from a compound (C) represented by the above general formula (3), a compound (D) represented by the above general formula (4), and an inorganic phosphoric acid (salt) (IN), and the non-volatile components of the water-permeability imparting agent and the treatment agent for nonwoven fabric production described below each have an acid value of 0.5 to 450 mg KOH/g, and the non-volatile components of the water-permeability imparting agent and the treatment agent for nonwoven fabric production described below are each measured by P nuclear NMR, and the ratio of P1 to the sum (P1+P2+P3) of the following peak areas P1 to P3 in the spectrum measured [P1/(P1+P2+P3)] is 40 to 100%.
• the acid value of the non-volatile content of the water permeability imparting agent of the first embodiment and the non-volatile content of the treatment agent for nonwoven fabric production of the second embodiment are each 0.5 to 450 mgKOH/g. It is believed that if the acid value is 0.5 to 450 mgKOH/g, the foam film stability is reduced, resulting in excellent foam suppression. If the acid value is less than 0.5 mgKOH/g, the foam suppression property is reduced, and if the acid value is more than 450 mgKOH/g, the instantaneous water permeability and repeated water permeability are insufficient.
• the upper limit of the acid value of the non-volatile content of the water permeability imparting agent of the first embodiment and the non-volatile content of the treatment agent for nonwoven fabric production of the second embodiment is preferably 400 mgKOH/g, more preferably 300 mgKOH/g, and even more preferably 200 mgKOH/g, from the viewpoint of antistatic properties.
• the lower limit of the acid value is preferably 5 mgKOH/g, more preferably 10 mgKOH/g, and even more preferably 15 mgKOH/g, from the viewpoint of foam suppression properties. Also, for example, 5 to 300 mgKOH/g is preferable, and 10 to 200 mgKOH/g is more preferable.
• the non-volatile content of the water-permeability imparting agent and the non-volatile content of the treatment agent for nonwoven fabric production refer to the residue on the aluminum sheet when 2.0 to 3.0 g of the water-permeability imparting agent or the treatment agent for nonwoven fabric production is spread evenly on an aluminum sheet and dried at 110° C. under irradiation with an infrared lamp, and the fluctuation range of the volatile content over 150 seconds becomes 0.15%.
• the non-volatile content of the water permeability imparting agent of the first embodiment and the non-volatile content of the treatment agent for producing a nonwoven fabric of the second embodiment are measured by P-nuclear NMR, and the ratio of P1 to the sum (P1+P2+P3) of the following peak areas P1 to P3 in the spectrum is 40 to 100% [P1/(P1+P2+P3)].
• P1 Peak area in the range of 0 to 10 ppm
• P2 Peak area in the range of -25 to -3 ppm
• P3 Peak area in the range of -3 to 0 ppm
• Compounds showing peaks in the spectrum from -25 to 10 ppm tend to be mainly assigned to inorganic phosphoric acid or compound (A), compound (B), compound (D), and compound (C) in that order from the low magnetic field side. It is considered that if [P1/(P1+P2+P3)] is 40-100%, the foam film stability is reduced, and therefore the foam-inhibiting properties are excellent. If the P1/(P1+P2+P3) is less than 40%, the instantaneous water permeability and repeated water permeability are insufficient.
• the upper limit of the ratio of P1 is preferably 90%, more preferably 80%, and even more preferably 75% in terms of instantaneous water permeability and repeated water permeability.
• the lower limit of the P1/(P1+P2+P3) is preferably 40%, more preferably 45%, and even more preferably 50% in terms of foam-inhibiting properties. Also, for example, 40-90% is preferable, 45-85% is more preferable, and 50-75% is more preferable.
• the method for measuring the peak areas of P1 to P3 is the method described in the examples.
• the dynamic surface tension at a lifetime of 1000 ms is preferably 25 to 60 mN/m in terms of processability, instantaneous water permeability, and repeated water permeability.
• the upper limit of the dynamic surface tension is preferably 58 mN/m, more preferably 55 mN/m, and even more preferably 50 mN/m.
• the lower limit of the dynamic surface tension is preferably 25.5 mN/m, more preferably 26 mN/m, and even more preferably 26.5 mN/m.
• the total ratio of compound (A), compound (B), compound (C), compound (D) and inorganic phosphoric acid (salt) (IN) in the non-volatile content of the water permeability imparting agent of the first embodiment and the non-volatile content of the treatment agent for nonwoven fabric production of the second embodiment is not particularly limited, but is preferably 5 to 95% by weight in terms of antistatic properties, instantaneous water permeability and repeated water permeability.
• the upper limit of this ratio is more preferably 90% by weight, even more preferably 80% by weight, and particularly preferably 70% by weight.
• the lower limit of this ratio is more preferably 10% by weight, even more preferably 15% by weight, and particularly preferably 20% by weight.
• 10 to 90% by weight is more preferable, and 15 to 80% by weight is even more preferable.
• 20 to 90% by weight is preferable in terms of instantaneous water permeability and foam suppression, and 10 to 70% is preferable in terms of repeated water permeability.
• the ratio of compound (A) in the non-volatile content of the water permeability imparting agent of the first embodiment and in the non-volatile content of the treatment agent for nonwoven fabric production of the second embodiment is not particularly limited, but is preferably 13 to 73% by weight in terms of antistatic properties, instantaneous water permeability, and repeated water permeability, and in terms of the ease of satisfying the specific P1/(P1+P2+P3) of the present invention.
• the upper limit of this ratio is more preferably 73% by weight, even more preferably 45% by weight, and especially preferably 30% by weight.
• the lower limit of this ratio is more preferably 13% by weight, even more preferably 22% by weight, and especially preferably 25% by weight. Also, for example, 22 to 45% by weight is more preferable, and 25 to 30% by weight is even more preferable.
• the ratio of compound (B) in the non-volatile content of the water permeability imparting agent of the first embodiment and in the non-volatile content of the treatment agent for nonwoven fabric production of the second embodiment is not particularly limited, but is preferably 13 to 56% by weight in terms of antistatic properties, instantaneous water permeability, and repeated water permeability, and in terms of the ease of satisfying the specific P1/(P1+P2+P3) of the present invention.
• the upper limit of this ratio is more preferably 56% by weight, even more preferably 45% by weight, and especially preferably 40% by weight.
• the lower limit of this ratio is more preferably 13% by weight, even more preferably 20% by weight, and especially preferably 30% by weight. Also, for example, 20 to 45% by weight is more preferable, and 30 to 40% by weight is even more preferable.
• the ratio of compound (C) in the non-volatile content of the water permeability imparting agent of the first embodiment and in the non-volatile content of the treatment agent for nonwoven fabric production of the second embodiment is not particularly limited, but is preferably 0 to 61% by weight in terms of antistatic properties, instantaneous water permeability, and repeated water permeability, and in terms of the ease of satisfying the specific P1/(P1+P2+P3) of the present invention.
• the upper limit of this ratio is more preferably 61% by weight, even more preferably 40% by weight, and especially preferably 37% by weight.
• the lower limit of this ratio is more preferably 2% by weight, even more preferably 5% by weight, and especially preferably 20% by weight. Also, for example, 2 to 50% by weight is more preferable, and 5 to 40% by weight is even more preferable.
• the ratio of compound (D) in the non-volatile content of the water permeability imparting agent of the first embodiment and in the non-volatile content of the treatment agent for nonwoven fabric production of the second embodiment is not particularly limited, but is preferably 0 to 2% by weight in terms of antistatic properties, instantaneous water permeability, repeated water permeability, and in terms of the ease of satisfying the specific P1/(P1+P2+P3) of the present invention.
• the upper limit of this ratio is more preferably 2% by weight, even more preferably 1% by weight, and particularly preferably 0.5% by weight.
• the lower limit of this ratio is more preferably 0.1% by weight, even more preferably 0.2% by weight, and particularly preferably 0.4% by weight.
• 0.1 to 2% by weight is more preferable, and 0.2 to 1% by weight is even more preferable.
• the ratio of inorganic phosphoric acid (salt) (IN) in the non-volatile content of the water permeability imparting agent of the first embodiment and in the non-volatile content of the treatment agent for nonwoven fabric production of the second embodiment is not particularly limited, but is preferably 0 to 8% by weight in terms of antistatic properties, instantaneous water permeability, repeated water permeability, and in terms of the ease of satisfying the specific P1/(P1+P2+P3) of the present invention.
• the upper limit of this ratio is more preferably 8% by weight, even more preferably 1% by weight, and especially preferably 0.5% by weight.
• the lower limit of this ratio is more preferably 0% by weight, even more preferably 0.1% by weight, and especially preferably 0.2% by weight. Also, for example, 0 to 1% by weight is more preferable, and 0.1 to 0.5% by weight is even more preferable.
• the ratio of compounds (A), (B), (C) and (D) used in the water permeability imparting agent of the first embodiment and the treatment agent for nonwoven fabric production of the second embodiment can be changed by changing the ratio of alcohol to tetraphosphorus 10 oxide.
• the proportion of compound (A) can be increased by using phosphoric acid in the reaction.
• the ratio of the nonionic surfactant (E) in the nonvolatile content of the water permeability imparting agent of the first embodiment and the treatment agent for nonwoven fabric production of the second embodiment is preferably 5 to 95% by weight in terms of repeated water permeability, emulsion stability, and antistatic properties.
• the upper limit of this ratio is more preferably 90% by weight, even more preferably 85% by weight, and particularly preferably 80% by weight.
• the lower limit of this ratio is more preferably 10% by weight, even more preferably 20% by weight, and particularly preferably 30% by weight.
• 10 to 90% by weight is more preferable, and 20 to 85% by weight is even more preferable.
• 20 to 90% by weight is preferable in terms of instantaneous water permeability and foam suppression, and 10 to 70% is preferable in terms of repeated water permeability.
• the ratio of the anionic surfactant (F) in the non-volatile content of the water permeability imparting agent of the first embodiment and the treatment agent for nonwoven fabric production of the second embodiment is preferably 5 to 95% by weight in terms of repeated water permeability, emulsion stability, and antistatic properties.
• the upper limit of this ratio is more preferably 90% by weight, even more preferably 85% by weight, and particularly preferably 80% by weight.
• the lower limit of this ratio is more preferably 8% by weight, even more preferably 10% by weight, and particularly preferably 15% by weight. Also, for example, 8 to 90% by weight is more preferable, and 10 to 85% by weight is even more preferable.
• the water-permeability imparting agent of the first embodiment is not particularly limited as long as it imparts water permeability to an object, but it may be one that temporarily imparts water permeability to an object during the manufacturing process of fibers, nonwoven fabrics, etc., or one that imparts water permeability to a final product to which the water-permeability imparting agent has been applied.
• a water-permeability imparting agent may be attached to fibers to produce a nonwoven fabric, and then water permeability may be imparted to an absorbent article using the nonwoven fabric.
• the treatment agent for nonwoven fabric manufacturing of the second embodiment is not particularly limited as long as it is used in the manufacture of nonwoven fabric, but it may be one used in the manufacture of nonwoven fabric described below.
• a treatment agent for nonwoven fabric manufacturing is one that improves the processability during nonwoven fabric manufacturing by adhering the treatment agent to the fibers. For example, it can be used to suppress the generation of static electricity when passing through a card, or to impart hydrophilicity during spunlace.
• the fiber of the present invention is obtained by applying the water permeability imparting agent or the treatment agent for nonwoven fabric production to a fiber body.
• the fiber of the present invention may be a staple fiber or a long fiber, and is preferably a staple fiber in terms of instantaneous water permeability and repeated water permeability.
• the adhesion rate of the non-volatile matter of the water permeability imparting agent or the treatment agent for nonwoven fabric production to the fiber body is preferably 0.03 to 2% by weight, more preferably 0.1 to 1% by weight, based on the fiber body in terms of antistatic properties, instantaneous water permeability, and repeated water permeability.
• the fiber manufacturing method of the present invention is not particularly limited as long as it includes a step of applying the water permeability imparting agent of the first embodiment or the treatment agent for nonwoven fabric production of the second embodiment to raw fiber, and other steps can be performed by known methods.
• Raw fiber means fiber to which the water permeability imparting agent of the first embodiment or the treatment agent for nonwoven fabric production of the second embodiment has not been applied.
• the fiber body examples include polyolefin fibers, polyester fibers, nylon fibers, PVC fibers, and composite fibers made of two or more types of thermoplastic resins.
• Combinations of composite fibers include, in the case of polyolefin resin/polyolefin resin, high-density polyethylene/polypropylene, linear high-density polyethylene/polypropylene, low-density polyethylene/polypropylene, a binary or ternary copolymer of propylene and another ⁇ -olefin/polypropylene, linear high-density polyethylene/high-density polyethylene, and low-density polyethylene/high-density polyethylene.
• polyolefin resin/polyester resin examples include polypropylene/polyethylene terephthalate, high-density polyethylene/polyethylene terephthalate, linear high-density polyethylene/polyethylene terephthalate, and low-density polyethylene/polyethylene terephthalate.
• polyester resin/polyester resin examples include copolymer polyester/polyethylene terephthalate.
• fibers made of polyamide resin/polyester resin, polyolefin resin/polyamide resin, and the like can also be exemplified.
• the water permeability imparting agent of the first aspect and the treatment agent for nonwoven fabric production of the second aspect are suitable for hydrophobic synthetic fibers such as polyolefin fibers (polyolefin fibers or composite fibers containing polyolefin fibers) and polyester fibers (polyester fibers or composite fibers containing polyester fibers) because of the preference for a soft feel, and polyolefin fibers are even more suitable.
• the fiber body is a fiber for producing nonwoven fabric from the viewpoint of water permeability.
• the cross-sectional structure of the fiber can be, for example, sheath-core, parallel, eccentric sheath-core, multi-layer, radial or sea-island, but from the viewpoint of productivity in the fiber manufacturing process and ease of processing into nonwoven fabrics, the sheath-core with eccentricity or parallel type is preferred.
• the cross-sectional shape can be circular or irregular. In the case of irregular shapes, any shape can be used, for example, flat, polygonal (triangle to octagonal, etc.), T-shaped, hollow, multi-lobed, etc.
• the water permeability imparting agent of the first embodiment and the treatment agent for nonwoven fabric production of the second embodiment may be applied to the fiber body as is without dilution, or may be applied to the fiber body after diluting with water or the like to a concentration such that the weight ratio of the nonvolatile content is 0.5 to 5% by weight.
• the process for applying the water permeability imparting agent and the treatment agent for nonwoven fabric production to the fiber body may be any of the spinning process, drawing process, and crimping process of the fiber body.
• There are no particular limitations on the means for applying the water permeability imparting agent of the first embodiment and the treatment agent for nonwoven fabric production of the second embodiment to the fiber body and means such as roller oiling, nozzle spray oiling, and dip oiling may be used.
• a method that can obtain the desired amount of adhesion more uniformly and efficiently may be adopted according to the fiber production process and its characteristics.
• a drying method a method of drying with hot air and infrared rays, a method of drying by contacting with a heat source, etc. may be used.
• the nonwoven fabric of the present invention may be a nonwoven fabric obtained by applying the water permeability imparting agent of the first embodiment or the treatment agent for nonwoven fabric production of the second embodiment to a raw nonwoven fabric to which the water permeability imparting agent of the first embodiment and the treatment agent for nonwoven fabric production of the second embodiment have not been applied, or a nonwoven fabric may be made using fibers to which the water permeability imparting agent of the first embodiment or the treatment agent for nonwoven fabric production of the second embodiment has been applied.
• the method for producing the nonwoven fabric of the present invention is not particularly limited, and a known method can be adopted. Short fibers or long fibers can be used as the raw fiber.
• Examples of the method for forming a web using short fibers include dry methods such as the carding method and the airlaid method, and wet methods such as the papermaking method.
• Examples of the method for forming a web using long fibers include the spunbond method, the meltblowing method, and the flash spinning method.
• Examples of the interfiber bonding method include the chemical bond method, the thermal bond method, the needle punch method, the spunlace method, and the stitch bond method.
• the method for producing a nonwoven fabric of the present invention preferably includes a step of passing the fibers of the present invention through a carding machine or the like to produce a fiber web, and heat-treating the obtained fiber web.
• the water-permeability imparting agent of the first aspect and the treatment agent for nonwoven fabric production of the second aspect are particularly preferably used when the production of a nonwoven fabric includes a step of heat-treating a fiber web.
• Methods for bonding a fiber web by heat treatment include heat fusion methods such as heat compression bonding using a heated roll or ultrasonic waves, heat fusion bonding using heated air, and point bonding methods.
• heat fusion methods such as heat compression bonding using a heated roll or ultrasonic waves, heat fusion bonding using heated air, and point bonding methods.
• heat treatment near the melting point of the low-melting point resin can easily achieve thermal bonding at the fiber intersections.
• Examples of the method for producing a nonwoven fabric include a method in which staple fibers to which the water permeability imparting agent of the first embodiment or the treatment agent for nonwoven fabric production of the second embodiment has been imparted are passed through a carding machine or the like to form a web, which is then heat-treated as described above to bond and integrate, and a method in which, when laminating pulp or the like in an airlaid method, the staple fibers to which the water permeability imparting agent of the first embodiment or the treatment agent for nonwoven fabric production of the second embodiment has been imparted are mixed with the fibers (staple fibers) to which the water permeability imparting agent of the first embodiment or the treatment agent for nonwoven fabric production of the second embodiment has been imparted, and the fibers are heat-treated as described above to bond the fibers, etc.
• Other examples include a method in which a fiber molded product obtained by a spunbonding method, a melt-blowing method, a flash spinning method, or the like is imparted with the water permeability imparting agent of the first embodiment and the treatment agent for nonwoven fabric production of the second embodiment, and the resulting product is heat-treated with a heated roll or heated air, or the product is heat-treated with a heated roll or heated air, and the water permeability imparting agent of the first embodiment or the treatment agent for nonwoven fabric production of the second embodiment is then applied to the resulting product to produce a nonwoven fabric.
• a composite fiber resin is spun, and then the spun composite long fiber filaments are cooled with a cooling fluid and tensioned with drawing air to obtain the desired fineness.
• the spun filaments are then collected on a collection belt and bonded to obtain a spunbonded nonwoven fabric.
• Bonding methods include thermocompression bonding with a heated roll or ultrasonic waves, heat fusion bonding with heated air, and thermocompression point bonding (point bonding).
• the method for applying the water permeability imparting agent of the first embodiment or the treatment agent for nonwoven fabric production of the second embodiment to the obtained spunbonded nonwoven fabric may be a roll coating method such as a gravure method, a flexographic method, or a gate roll method, a spray coating method, or the like, but is not particularly limited as long as the amount of coating on the nonwoven fabric can be adjusted on each side.
• the drying method may be a method of drying with hot air or infrared rays, a method of drying by contacting with a heat source, or the like.
• the absorbent article of the present invention includes the nonwoven fabric of the present invention.
• the absorbent article of the present invention include paper diapers, sanitary napkins (hygienic napkins, etc.), etc.
• the nonwoven fabric of the present invention is preferably used as a top sheet of hygienic materials such as paper diapers and sanitary napkins. It can also be used as a second sheet, a water absorbent, an absorbent pad, etc.
• Examples 1 to 56 and Comparative Examples 1 to 9 The acid values of the reacted unneutralized products (P-1-1 to P-11-1 and p-1 to p-3) were measured, and the amount of potassium hydroxide for neutralization that would result in the blended components and acid values in Tables 1 to 3 and 10 to 11 was calculated. In addition, the amount of water that would result in a non-volatile concentration of 50% by weight after neutralization was calculated, and mixed with potassium hydroxide for neutralization to obtain an aqueous potassium hydroxide solution for neutralization.
• the components shown in Tables 1 to 3 and 10 to 11 were as shown in Tables 4 to 9 and described below.
• the obtained water permeability imparting agent was a mixture of an alkali metal salt and an unneutralized product for each of the compounds represented by the general formula (1), the compound represented by the general formula (2), the compound represented by the general formula (3), the compound represented by the general formula (4), and inorganic phosphoric acid (salt).
• the resulting water-permeability imparting agents were each diluted with warm water at 60° C. so that the weight ratio of non-volatile matter became 0.9% by weight to obtain a diluted solution.
• each diluted solution of the water permeability imparting agent was applied to 300 g of the fiber body by a dip oiling method, and the amount of non-volatile matter of the water permeability imparting agent attached to the fiber was 0.45 wt %.
• the fiber body was a polypropylene (core)-polyethylene (sheath) composite fiber to which no fiber treatment agent such as a water permeability imparting agent was attached, and had a single fiber fineness of 2.2 Dtex and a fiber length of 38 mm.
• the fiber to which the diluted solution of each water permeability imparting agent was attached was placed in a hot air dryer at 80° C. for 2 hours, and then left to dry at room temperature for 8 hours or more to obtain a fiber to which the water permeability imparting agent was imparted.
• the fibers to which the water permeability agent was added were subjected to a fiber opening process and a carding process using a carding tester to produce a web having a basis weight of 25 g/ m2 .
• the obtained web was heat-treated at 140°C in an air-through type hot air circulation dryer to fix the web, and a nonwoven fabric was obtained.
• the physical properties of the obtained nonwoven fabric were evaluated by the evaluation methods shown below. The results are shown in Tables 1 to 3 and 10 to 11.
• Each water-permeability imparting agent was diluted with 60°C warm water so that the weight ratio of the non-volatile content became 1.0% by weight.
• the diluted solution was subjected to dynamic surface tension measurement at 25°C and at a bubble generation interval (bubble plate) of 10 to 10,000 msec using a bubble pressure type dynamic surface tensiometer (BP-2, manufactured by KRUSS), and the dynamic surface tension at a bubble generation interval (bubble plate) of 1,000 msec was read.
• BP-2 bubble pressure type dynamic surface tensiometer
• 5 is the best rating, and 3 or more is suitable for practical use. (judgment criteria) 5: Less than 10 seconds 4: 10 seconds or more but less than 50 seconds 3: 50 seconds or more but less than 100 seconds 2: 100 seconds or more but less than 200 seconds 1: 200 seconds or more
• the methods for producing the unneutralized products P-1-1 to P-11-1 and p-1 to p-3 used in the examples and comparative examples are shown below.
• the components obtained by the manufacturing methods P-1-1-1 to P-11-1 and p-1 to p-3 are as shown in Tables 4 to 9.
• (Production method of P-1-1) 385 g of 2-ethylhexyl alcohol was added to a 1000 mL four-neck flask, and while stirring, 550 g of phosphorus oxide was gradually added to the mixture to react, thereby obtaining an unneutralized product. The acid value of the unneutralized product was measured.
• Method for producing P-6-1 Using 520 g of isostearyl alcohol having 15 moles of polyoxyethylene added thereto, a polymer was produced in the same manner as in (P-1-1).
• Method for producing P-7-1) 405 g of isodecyl alcohol was used, and the same preparation as in (P-1-1) was carried out.
• Method for producing P-8-1) A polyoxyethylene 3-mol-added isolauryl alcohol (470 g) was used to produce a polyoxyethylene 3-mol-added isolauryl alcohol in the same manner as in (P-1-1).
• E-1 20 moles of polyoxyethylene added hydrogenated castor oil ether
• E-2 PEG (400) oleate
• E-3 Sorbitan monolaurate
• E-4 Sorbitan monooleate
• E-5 Polyoxyalkylene alkyl (carbon number 12, 13) ether (random addition type of 6 moles of polyoxyethylene and 2 moles of polyoxypropylene)
• E-6 Polyoxyethylene 25 moles added hydrogenated castor oil ether
• E-7 Hexaglycerin monostearate
• F Ditridecylsulfosuccinic acid sodium salt
• G Stearyl dimethyl ammonium betaine
• the water-permeability imparting agents of Examples 1 to 56 contain a compound (A) represented by the following general formula (1) and a compound (B) represented by the following general formula (2), and contain at least one selected from a compound (C) represented by the following general formula (3), a compound (D) represented by the following general formula (4), and an inorganic phosphoric acid (salt) (IN).
• the acid value of the non-volatile content of the water-permeability imparting agent is 0.5 to 450 mg KOH/g, and the ratio of P1 to the sum (P1+P2+P3) of the following peak areas P1 to P3 in the spectrum measured by P nuclear NMR of the non-volatile content of the water-permeability imparting agent is 40 to 100%, so that the problem of the present application was solved. Furthermore, the water permeability imparting agents of Examples 1 to 56 were evaluated in the same manner as in Examples 1 to 56, except that the amount of non-volatile matter attached to the water permeability imparting agent was set to 0.03% by weight.
• the foam-shedding test was conducted by placing raw cotton with the treatment agent attached in water, and shaking the squeezed extract to measure the foam height. As described above, it was confirmed that the water permeability imparting agents of Examples 1 to 56 were useful as treatment agents for producing air-through nonwoven fabrics and spunlace nonwoven fabrics.
• the fibers and nonwoven fabrics treated with the water permeability imparting agent of the first embodiment and the treatment agent for nonwoven fabric production of the second embodiment are used for the top sheets of absorbent articles such as sanitary products such as disposable diapers and napkins. They can also be used in other situations requiring water permeable sheets in food, medical, and industrial applications.

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