WO2020149272A1 - Polyolefin-based nonwoven fabric processing agent and polyolefin-based nonwoven fabric - Google Patents

Polyolefin-based nonwoven fabric processing agent and polyolefin-based nonwoven fabric Download PDF

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Publication number
WO2020149272A1
WO2020149272A1 PCT/JP2020/000935 JP2020000935W WO2020149272A1 WO 2020149272 A1 WO2020149272 A1 WO 2020149272A1 JP 2020000935 W JP2020000935 W JP 2020000935W WO 2020149272 A1 WO2020149272 A1 WO 2020149272A1
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Prior art keywords
acid
polyolefin
ester compound
modified silicone
polyether
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PCT/JP2020/000935
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French (fr)
Japanese (ja)
Inventor
一輝 金子
昌武 森田
利広 小室
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竹本油脂株式会社
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Priority to KR1020207024829A priority Critical patent/KR102213774B1/en
Priority to CN202080001623.4A priority patent/CN111742097B/en
Publication of WO2020149272A1 publication Critical patent/WO2020149272A1/en

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    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/007—Addition polymers
    • 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
    • D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
    • D06M13/188—Monocarboxylic acids; Anhydrides, halides or salts 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
    • D06M13/248—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 sulfur
    • D06M13/256—Sulfonated compounds esters thereof, e.g. sultones
    • 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
    • D06M13/248—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 sulfur
    • D06M13/262—Sulfated compounds thiosulfates
    • 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
    • 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
    • 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
    • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
    • D06M15/647—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain containing polyether sequences
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/02—Moisture-responsive characteristics
    • D10B2401/022—Moisture-responsive characteristics hydrophylic

Definitions

  • the present invention relates to a polyolefin non-woven fabric treating agent which is excellent in hard water stability, non-woven fabric permeability during the treatment of polyolefin non-woven fabrics, and durability and hydrophilicity of a hydrophilic non-woven fabric. Further, the present invention relates to a polyolefin-based non-woven fabric to which such a polyolefin-based non-woven fabric treating agent is attached.
  • hygienic products such as disposable diapers
  • products in which the surface of a superabsorbent polymer is covered with a nonwoven fabric containing polyolefin-based synthetic fibers to absorb body fluids are known.
  • Nonwoven fabrics that coat the surface of a superabsorbent polymer are required to have initial hydrophilicity that quickly absorbs body fluid, durable hydrophilicity that rapidly absorbs repeated body fluid, and the like. Therefore, in order to meet the demand, a treatment for applying a treatment agent for a polyolefin-based nonwoven fabric containing a surfactant or the like may be performed on the surface of the polyolefin-based synthetic fiber.
  • Patent Document 1 discloses a water-absorbing article containing a fatty acid containing 45 to 95% by weight of oleic acid derived from natural fats and oils, a polyoxyalkylene adduct of natural fats and oils, and a fatty acid ester of a polyoxyalkylene adduct of natural fats and oils.
  • the composition of the fiber treatment agent for use is disclosed.
  • Patent Document 2 discloses a configuration of a polyolefin-based nonwoven fabric for sanitary materials, which is characterized by being provided with a treatment agent containing a specific polyether compound and a specific polyether-modified silicone.
  • Patent Document 3 a fiber treatment agent containing a polyorganosiloxane such as polydimethylsiloxane and a surfactant such as a phosphate ester type anionic surfactant and a polyoxyalkylene-modified polyhydric alcohol fatty acid ester is attached.
  • a surfactant such as a phosphate ester type anionic surfactant and a polyoxyalkylene-modified polyhydric alcohol fatty acid ester is attached.
  • the construction of a long-fiber nonwoven fabric made of thermoplastic fibers is disclosed.
  • Patent Document 4 discloses a fiber treatment agent containing an anionic surfactant and an ester obtained by blocking at least one hydroxyl group of a condensate of a polyoxyalkylene group-containing hydroxy fatty acid polyhydric alcohol ester and a dicarboxylic acid or a dicarboxylic acid derivative with a fatty acid. The configuration will be disclosed.
  • the problem to be solved by the present invention is to provide a polyolefin-based non-woven fabric treatment agent having good hard water stability, non-woven fabric permeability, and durable hydrophilicity, and a polyolefin-based non-woven fabric.
  • a polyolefin-based nonwoven fabric treating agent comprising the following ether ester compound and the following polyether-modified silicone.
  • the ether ester compound is an ether ester compound obtained by condensing a compound obtained by adding an alkylene oxide having 2 to 4 carbon atoms to an ester compound of a polyhydric alcohol and a monovalent fatty acid X and a monovalent fatty acid Y. ..
  • the polyether-modified silicone is a polyether-modified silicone having a weight average molecular weight of 1,000 to 100,000.
  • the ether ester compound is 1 to 100 mol of an alkylene oxide having 2 to 4 carbon atoms to 1 mol of an ester compound of a divalent to tetravalent alcohol having 2 to 6 carbon atoms and a monovalent fatty acid X having 10 to 26 carbon atoms. It is preferable that the ether ester compound is obtained by condensing the monovalent fatty acid Y having 6 to 26 carbon atoms in a proportion of 2 to 3 moles per 1 mole of the compound added in the proportion of.
  • the polyether-modified silicone preferably has a mass average molecular weight of 3,000 to 50,000.
  • the polyolefin-based non-woven fabric treating agent contains 30 to 99 parts by mass of the ether ester compound and 1 to 100 parts of the polyether modified silicone. It is preferably contained in a proportion of 70 parts by mass.
  • the polyolefin-based nonwoven fabric treating agent preferably further contains at least one selected from fatty acids, organic sulfonic acids, organic sulfates, polyoxyalkylene alkyl phosphates, and salts thereof.
  • At least one selected from the ether ester compound, the polyether-modified silicone, and the fatty acid, the organic sulfonic acid, the organic sulfate, the polyoxyalkylene alkyl phosphate ester, and salts thereof When the total of the two content ratios is 100 parts by mass, the ether ester compound is 40 to 89.99 parts by mass, the polyether-modified silicone is 10 to 50 parts by mass, and the fatty acid, the organic sulfonic acid, the organic sulfate, It is preferable to contain at least one selected from the polyoxyalkylene alkyl phosphates and salts thereof in a proportion of 0.01 to 10 parts by mass.
  • a polyolefin-based nonwoven fabric to which the above-mentioned polyolefin-based nonwoven fabric treating agent is adhered.
  • hard water stability, nonwoven fabric permeability, and durable hydrophilicity can be improved.
  • the treating agent of the present embodiment contains the following ether ester compound and the following polyether modified silicone.
  • the ether ester compound is an ether ester compound obtained by condensing a compound obtained by adding an alkylene oxide having 2 to 4 carbon atoms to an ester compound of a polyhydric alcohol and a monovalent fatty acid X and a monovalent fatty acid Y. ..
  • polyhydric alcohol constituting the ether ester compound used in the treatment agent of the present embodiment include, for example, ethylene glycol, propylene glycol, 1,3-propanediol, 1,2-butanediol, 1,3-butanediol.
  • the monovalent fatty acid X constituting the ether ester compound used in the treatment agent of the present embodiment may be a saturated fatty acid or an unsaturated fatty acid, and may be linear or branched. Well, it may have a hydroxy group. Specific examples thereof include pentanoic acid, hexanoic acid, octanoic acid, 2-ethylhexanoic acid (octylic acid), decanoic acid, dodecanoic acid (lauric acid), tridecanoic acid, isotridecanoic acid, hexadecanoic acid, octadecanoic acid (stearic acid).
  • isooctadecanoic acid isostearic acid
  • hydroxyoctadecanoic acid 12-hydroxyoctadecanoic acid (12-hydroxystearic acid)
  • octadecenoic acid hydroxyoctadecenoic acid
  • octadecadienoic acid octadecatrienoic acid
  • docosanoic acid behenic acid
  • tetracosanoic acid hexacosanoic acid
  • octadocosanoic acid octacosanoic acid
  • octacosanoic acid ricinoleic acid, oleic acid and the like.
  • the specific example of the monovalent fatty acid X can be applied to the specific example of the monovalent fatty acid Y constituting the ether ester compound used in the treatment agent of the present embodiment.
  • alkylene oxide having 2 to 4 carbon atoms which constitutes the ether ester compound used in the treating agent of the present embodiment include ethylene oxide and propylene oxide.
  • the number of moles of alkylene oxide added is not particularly limited, but it is preferable to add the alkylene oxide in a ratio of 1 to 100 moles.
  • the effect of the present invention can be further improved by defining within such a numerical range.
  • the initial hydrophilicity of the polyolefin-based nonwoven fabric hydrophilized with this treating agent can be improved.
  • the ether ester compound used in the treatment agent of the present embodiment has 2 to 4 carbon atoms per mol of an ester compound of a 2 to 4 carbon alcohol having 2 to 6 carbon atoms and a monovalent fatty acid X having 10 to 26 carbon atoms.
  • a compound in which a monovalent fatty acid Y having 6 to 26 carbon atoms is condensed at a ratio of 2 to 3 mols per 1 mol of a compound to which alkylene oxide is added at a ratio of 1 to 100 mols is preferable. With such a configuration, the effect of the present invention can be further improved. In particular, it is possible to improve the durable hydrophilicity of the polyolefin-based nonwoven fabric which has been hydrophilized with this treating agent.
  • ether ester compound used in the treatment agent of the present embodiment include, for example, polyoxyethylene hydrogenated castor oil condensate with oleic acid, polyoxyethylene hydrogenated castor oil condensate with lauric acid, and polyoxyethylene hydrogenated Castor oil condensation product with stearic acid, polyoxyethylene hydrogenated castor oil condensation product with behenic acid, polyoxyethylene hydrogenated castor oil condensation product with octadocosanoic acid, polyoxyethylene and polyoxypropylene hydrogenated castor oil stearin oil Condensate with acid, polyoxyethylene and polyoxypropylene hardened condensate with castor oil with lauric acid, polyoxyethylene and polyoxypropylene hardened condensate with castor oil with octyl acid, polyoxyethylene and polyoxypropylene hardened Castor oil condensate with oleic acid, polyoxyethylene and polyoxypropylene hydrogenated castor oil condensate with pentanoic acid, polyoxyethylene adduct
  • the hydrogenated castor oil has a structure in which a fatty acid containing about 87% by mass of 12-hydroxystearic acid and about 13% by mass of stearic acid is ester-bonded with glycerin (trivalent alcohol having 3 carbon atoms).
  • glycerin trivalent alcohol having 3 carbon atoms.
  • the ether ester compounds described above may be used alone or in combination of two or more.
  • the polyether-modified silicone used in the treatment agent of the present embodiment has a mass average molecular weight of 1,000 to 100,000, preferably 3,000 to 50,000. By defining the content in such a range, the effect of the present invention, especially the non-woven fabric permeability, can be further improved.
  • the mass average molecular weight can be determined in terms of polystyrene by gel permeation chromatography (hereinafter referred to as GPC) measurement.
  • the constitution other than the weight average molecular weight of the polyether modified silicone is not particularly limited, and examples thereof include ABn type polyether modified silicone, side chain type polyether modified silicone, both-end type polyether modified silicone, polyether group and alkyl group.
  • Alkyl polyether modified silicone in which both are introduced into the side chain or terminal, polyether chain end portion of the side chain type polyether modified silicone blocked with an aliphatic compound or fatty acid compound, both ends type polyether modified silicone examples thereof include those in which the end portion of the polyether chain is blocked with an aliphatic compound or a fatty acid compound. These components may be used alone or in combination of two or more.
  • the polyether-modified silicone used for the treating agent of the present embodiment preferably has, for example, the structure of the following chemical formula (1).
  • X represents an organic group represented by the following chemical formula (2).
  • Y represents an organic group represented by the following chemical formula (3). The repetition of X and Y may be repeated in either block or random manner.
  • a and b each represent an integer of 1 or more.
  • R 1 represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms or an alkenyl group having 2 to 20 carbon atoms.
  • R 2 represents an alkylene group having 3 to 6 carbon atoms.
  • R 3 represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, or an acyl group having 2 to 8 carbon atoms.
  • the content ratio of the ether ester compound and the polyether modified silicone in the treatment agent of the present embodiment is not particularly limited. Assuming that the total content of the ether ester compound and the polyether modified silicone is 100 parts by mass, the treating agent is 30 to 99 parts by mass of the ether ester compound and 1 to 70 parts by mass of the polyether modified silicone. It is preferable to contain. By defining the content in such a range, the effects of the present invention, particularly the durable hydrophilicity, can be further improved.
  • the treatment agent of the present embodiment preferably further contains at least one selected from fatty acids, organic sulfonic acids, organic sulfates, polyoxyalkylene alkyl phosphates, and salts thereof. These components may be used alone or in combination of two or more. With this configuration, the emulsion stability of the emulsion can be further improved.
  • the fatty acid may be a saturated fatty acid or an unsaturated fatty acid, may be linear or branched, and may have a hydroxy group. Specific examples thereof include pentanoic acid, hexanoic acid, octanoic acid, 2-ethylhexanoic acid (octylic acid), decanoic acid, dodecanoic acid (lauric acid), tridecanoic acid, isotridecanoic acid, hexadecanoic acid, octadecanoic acid (stearic acid).
  • isooctadecanoic acid isostearic acid
  • hydroxyoctadecanoic acid 12-hydroxyoctadecanoic acid (12-hydroxystearic acid)
  • octadecenoic acid hydroxyoctadecenoic acid
  • octadecadienoic acid octadecatrienoic acid
  • docosanoic acid behenic acid
  • tetracosanoic acid hexacosanoic acid
  • octadocosanoic acid octacosanoic acid
  • octacosanoic acid ricinoleic acid, oleic acid and the like.
  • fatty acid salts include, for example, alkali metal salts, and more specifically, sodium salts, potassium salts and the like of these fatty acids.
  • organic sulfonic acid examples include, for example, heptylsulfonic acid, 2-ethylhexylsulfonic acid, octylsulfonic acid, nonylsulfonic acid, decylsulfonic acid, undecylsulfonic acid, dodecylsulfonic acid, tridecylsulfonic acid, decylbenzenesulfonic acid.
  • Examples of salts of organic sulfonic acids include alkali metal salts, and more specifically, sodium salts, potassium salts, and the like of these organic sulfonic acids.
  • organic sulfate examples include, for example, 4-methylpentylsulfate, octylsulfate, 2-ethylhexylsulfate, isononylsulfate, decylsulfate, 1-methylnonylsulfate, isodecylsulfate, dodecylsulfate, 2-butyloctylsulfate, tetradecylsulfate, pentadecylsulfate.
  • Examples thereof include sulfuric acid, hexadecyl sulfuric acid, heptadecyl sulfuric acid, 3,9-diethyltridecane-6-yl sulfuric acid, octadecyl sulfuric acid, polyoxyethylene dodecyl sulfuric acid, polyoxyethylene octylphenyl ether sulfuric acid, polyoxyethylene nonylphenyl ether sulfuric acid and the like.
  • salts of organic sulfates include, for example, alkali metal salts, and more specifically, sodium salts, potassium salts and the like of these organic sulfates.
  • polyoxyalkylene alkyl phosphate ester examples include, for example, polyoxyethylene (addition mole number of alkylene oxide (the same applies hereinafter): 10 moles) octyl ether phosphate ester, polyoxyethylene (3 moles) isooctyl ether phosphate.
  • Ester polyoxyethylene (3 mol) polyoxypropylene (6 mol)-2-ethylhexyl ether phosphate, polyoxyethylene (2 mol) decyl ether phosphate, polyoxyethylene (2 mol) polyoxypropylene (6 Examples thereof include (mol) decyl ether phosphate and polyoxyethylene (2 mol) polyoxypropylene (6 mol) dodecyl ether phosphate.
  • Examples of salts of polyoxyalkylene alkyl phosphates include alkali metal salts, and more specifically, sodium salts, potassium salts and the like of these polyoxyalkylene alkyl phosphates.
  • Specific examples of these polyoxyalkylene alkyl phosphates or salts thereof include, for example, monoesters alone, diesters alone, and mixtures of monoesters and diesters.
  • the diester body includes a diester body having the same alkyl group (symmetrical diester) and a diester body having different alkyl groups (asymmetrical diester).
  • the content ratio of the two is not particularly limited.
  • the total amount of at least one selected from the ether ester compound, the polyether modified silicone, and the fatty acid, the organic sulfonic acid, the organic sulfate, the polyoxyalkylene alkyl phosphate ester, and salts thereof is 100 mass.
  • the amount of the treating agent is 40 to 89.99 parts by mass of the ether ester compound, 10 to 50 parts by mass of the polyether modified silicone, the fatty acid, the organic sulfonic acid, the organic sulfate, and the polyoxyalkylene. It is preferable to contain at least one selected from alkyl phosphates and salts thereof in a proportion of 0.01 to 10 parts by mass. With such a constitution, the constitution of the present invention, particularly the durable hydrophilicity, can be further improved. In addition, the initial hydrophilicity of the polyolefin-based nonwoven fabric hydrophilized with this treating agent can be improved.
  • the non-woven fabric according to the present embodiment is a non-woven fabric containing a polyolefin-based synthetic fiber to which the treatment agent of the first embodiment is attached.
  • the polyolefin synthetic fiber is not particularly limited, and examples thereof include polyethylene fiber, polypropylene fiber, polybutene fiber and the like. These may be used alone or in combination of two or more.
  • a composite fiber having a core-sheath structure, in which one or both of the core and the sheath is a polyolefin fiber for example, a polyethylene/polypropylene composite fiber in which the sheath is a polyethylene fiber, a polyethylene/polyester composite fiber, etc.
  • the type of non-woven fabric is not particularly limited, and examples thereof include spunbond, meltblown, and spunbond/meltblown composite non-woven fabric.
  • the treating agent of the first embodiment is preferably 0.05 to 3% by mass, more preferably 0.1 to 1% by mass as the treating agent of the first embodiment containing no solvent with respect to the polyolefin-based nonwoven fabric.
  • the form of the treating agent when the treating agent of the first embodiment is attached to the synthetic fiber may be, for example, an aqueous liquid.
  • a small amount of the organic solvent solution may be contained within a range that does not impair the effects of the present invention.
  • the treating agent of the first embodiment is diluted with, for example, water to obtain an aqueous liquid having a concentration of 0.5 to 20% by mass, and further diluted as necessary, and the aqueous liquid is added to the polyolefin-based synthetic fiber.
  • a treatment method in which the treatment agent of the first embodiment containing no solvent is attached in an amount of 0.05 to 3% by mass.
  • the attachment method a known method, for example, a dipping method, a spray method, a roller oiling method, a guide oiling method using a metering pump, or the like can be applied.
  • a spray method, a roll coater, a gravure coater, a die coater, a curtain coater or the like may be used.
  • a treating agent containing the above ether ester compound and a polyether-modified silicone having a predetermined mass average molecular weight is constituted. Therefore, the stability of hard water when hard water is used as a solvent can be improved. Further, it is possible to improve the non-woven fabric permeability during the treatment of the polyolefin-based non-woven fabric. In addition, excellent durable hydrophilicity can be imparted to the hydrophilic hydrophilic non-woven fabric.
  • the treatment agent of the above-mentioned embodiment as long as the effect of the present invention is not impaired, as a stabilizer or an antistatic agent for maintaining the quality of the treatment agent, a binder, an antioxidant, an ultraviolet absorber, etc. You may mix
  • ⁇ Test category 1> Synthesis of ether ester compound (A-1) To 1 mol of hydrogenated castor oil, an appropriate amount of sodium hydroxide as a catalyst was charged in an autoclave, and 25 mol of ethylene oxide was press-fitted to carry out etherification. Further, as a monovalent fatty acid Y, an ester compound (A-1) was obtained by esterification with 3 mol of oleic acid.
  • ether ester compound (A-2) 1 mol of glycerin as a polyhydric alcohol and 3 mol of 12-hydroxystearic acid as a monovalent fatty acid X were charged in a reaction vessel for esterification. This ester compound was charged into an autoclave, and an appropriate amount of potassium hydroxide was added as a catalyst. 26 mol of ethylene oxide was injected under pressure to carry out etherification. Then, the ether ester compound (A-2) was obtained by further esterifying with 2 mol of oleic acid as the monovalent fatty acid Y.
  • the molar ratio (%) of EO is calculated as (moles of EO/total mols of each alkylene oxide) ⁇ 100.
  • ⁇ Test category 2> Preparation of 10% aqueous solution of polyolefin-based nonwoven fabric treating agent (Example 1) 27.5 g of ether ester compound (A-1) as component A, 18.5 g of polyether-modified silicone (B-1) as component B, And 4.0 g of lauric acid (C-1) as the C component were mixed, and 450 g of ion-exchanged water was added to obtain a 10% aqueous solution.
  • A-1 ether ester compound
  • B-1 polyether-modified silicone
  • C-1 lauric acid
  • the type and ratio of the alkylene alkyl phosphate (C) are shown in Table 3, "Ether ester compound” column, "Polyether-modified silicone” and "*1" column, respectively.
  • the numerical value in the "ratio” column indicates the ratio (parts by mass) of each component when the total content of the components (A) to (C) is 100 parts by mass.
  • C-1 lauric acid
  • C-2 is oleic acid
  • C-3 sodium dodecyl sulfonate
  • C-4 is sodium dioctylsulfosuccinate
  • C-5 is sodium dodecyl sulfate
  • C-6 is polyoxy.
  • C-7 is polyoxyethylene (2 mol) polyoxypropylene (6 mol) dodecyl phosphate potassium salt.
  • ⁇ Test category 3> Adhesion of polyolefin-based non-woven fabric treatment agent to polyolefin-based synthetic fiber
  • An aqueous solution of the prepared treatment agent was diluted with hard water to obtain an aqueous solution having a concentration of 0.25%.
  • a treatment bath bath temperature 25° C.
  • a polypropylene spunbonded nonwoven fabric weight per unit area of 20 g/m 2
  • the squeezing ratio was adjusted with a mangle so that the amount of the aqueous solution deposited was 4 g. Then, it was blow-dried at 80° C.
  • ⁇ Test Category 4 evaluation of polyolefin-based nonwoven fabric treating agent> -Stability evaluation Stability (emulsion stability) was obtained by diluting the polyolefin-based nonwoven fabric treating agent of each of the above examples with ion-exchanged water to prepare an aqueous liquid (emulsion) having a nonvolatile content of 1.0%. was used for evaluation. After controlling the temperature in a thermostatic chamber at 20° C. and 60% RH for 24 hours, the appearance of each aqueous liquid was visually observed and evaluated according to the following criteria.
  • the non-woven fabric to which the treating agent was not applied was subjected to temperature control for 24 hours in a thermostatic chamber at 20°C and 60% relative humidity. Thereafter, 5 ⁇ L of a 1% emulsion (aqueous liquid) of each treating agent was dropped onto the nonwoven fabric, and the time until complete penetration was recorded.
  • Evaluation criteria for non-woven fabric permeability ⁇ (excellent): Penetrate in less than 10 seconds. Good (Good): Penetration in 10 seconds or more and less than 60 seconds. Poor (poor): Penetration in 60 seconds or more.
  • the treated non-woven fabric for evaluation was cut into small pieces of 10 cm ⁇ 15 cm, and the temperature was adjusted for 24 hours in a thermostatic chamber at 20° C. and a relative humidity of 60%.
  • Ten sheets of toilet paper were stacked to form an absorber, and the treated non-woven fabric for evaluation was placed thereon.
  • a treated non-woven fabric for evaluation and toilet paper were placed on a 45° inclined plate, and 0.05 g of physiological saline at 37° C. was dropped from a height of 1 cm above the non-woven fabric.
  • the flow length from the dropping point to the end of absorption (that is, the distance that the physiological saline solution dropped on the nonwoven fabric flows on the nonwoven fabric surface before being absorbed by the nonwoven fabric) is 5 for one treated nonwoven fabric for evaluation.
  • the initial hydrophilicity was evaluated according to the following evaluation criteria based on the average value measured once.
  • the treated non-woven fabric for evaluation was cut into small pieces of 10 cm x 25 cm, and the temperature was adjusted for 24 hours in a thermostatic chamber at 20°C and 60% relative humidity.
  • Ten sheets of toilet paper were stacked on each other to form an absorbent body, a treated non-woven fabric for evaluation was set on the absorbent body, and a 414-g stainless plate having holes with a diameter of 2 cm formed at equal intervals was placed on the non-woven fabric. From the height of 1 cm above the nonwoven fabric, 0.05 g of physiological saline at 37° C. was dropped.

Abstract

This polyolefin-based nonwoven fabric processing agent is characterized by the inclusion of the following ether-ester compound and the following polyether-modified silicone. The ether-ester compound is an ether-ester compound obtained by condensing a monocarboxylic fatty acid Y with a compound yielded by adding an alkylene oxide having 2 to 4 carbons to an ester compound of a polyhydric alcohol and a monocarboxylic fatty acid X. The polyether-modified silicone has a mass average molecular weight of 1,000 to 100,000.

Description

ポリオレフィン系不織布用処理剤及びポリオレフィン系不織布Polyolefin non-woven fabric treatment agent and polyolefin non-woven fabric
　本発明は、硬水安定性、またポリオレフィン系不織布処理時における不織布浸透性、及び親水化処理したポリオレフィン系不織布における耐久親水性に優れるポリオレフィン系不織布用処理剤に関する。さらには、かかるポリオレフィン系不織布用処理剤が付着したポリオレフィン系不織布に関する。 The present invention relates to a polyolefin non-woven fabric treating agent which is excellent in hard water stability, non-woven fabric permeability during the treatment of polyolefin non-woven fabrics, and durability and hydrophilicity of a hydrophilic non-woven fabric. Further, the present invention relates to a polyolefin-based non-woven fabric to which such a polyolefin-based non-woven fabric treating agent is attached.
　一般に、紙おむつ等の衛生製品として、体液を吸収するために高吸収性高分子の表面をポリオレフィン系の合成繊維を含む不織布で被覆した製品が知られている。高吸収性高分子の表面を被覆する不織布には特に、体液をすばやく吸収する初期親水性、繰り返し体液をすばやく吸収する耐久親水性等が要求される。そこでその要求に応えるために、ポリオレフィン系合成繊維の表面に、界面活性剤等を含有するポリオレフィン系不織布用処理剤を付与する処理が行われることがある。 Generally, as hygienic products such as disposable diapers, products in which the surface of a superabsorbent polymer is covered with a nonwoven fabric containing polyolefin-based synthetic fibers to absorb body fluids are known. Nonwoven fabrics that coat the surface of a superabsorbent polymer are required to have initial hydrophilicity that quickly absorbs body fluid, durable hydrophilicity that rapidly absorbs repeated body fluid, and the like. Therefore, in order to meet the demand, a treatment for applying a treatment agent for a polyolefin-based nonwoven fabric containing a surfactant or the like may be performed on the surface of the polyolefin-based synthetic fiber.
　従来、特許文献１～４に開示される不織布用処理剤が知られている。特許文献１は、天然油脂由来のオレイン酸を４５～９５重量％含有する脂肪酸と、天然油脂のポリオキシアルキレン付加物と、天然油脂のポリオキシアルキレン付加物の脂肪酸エステルとを含有する吸水性物品用繊維処理剤の構成について開示する。 Conventionally, non-woven fabric treating agents disclosed in Patent Documents 1 to 4 are known. Patent Document 1 discloses a water-absorbing article containing a fatty acid containing 45 to 95% by weight of oleic acid derived from natural fats and oils, a polyoxyalkylene adduct of natural fats and oils, and a fatty acid ester of a polyoxyalkylene adduct of natural fats and oils. The composition of the fiber treatment agent for use is disclosed.
　特許文献２は、特定のポリエーテル化合物及び特定のポリエーテル変性シリコーンを含有する処理剤を付与してなることを特徴とする衛生材料用ポリオレフィン系不織布の構成について開示する。 Patent Document 2 discloses a configuration of a polyolefin-based nonwoven fabric for sanitary materials, which is characterized by being provided with a treatment agent containing a specific polyether compound and a specific polyether-modified silicone.
　特許文献３は、ポリジメチルシロキサン等のポリオルガノシロキサンと、リン酸エステル型のアニオン界面活性剤、ポリオキシアルキレン変性多価アルコール脂肪酸エステル等の界面活性剤とを含有する繊維処理剤が付着している熱可塑性繊維からなる長繊維不織布の構成について開示する。 In Patent Document 3, a fiber treatment agent containing a polyorganosiloxane such as polydimethylsiloxane and a surfactant such as a phosphate ester type anionic surfactant and a polyoxyalkylene-modified polyhydric alcohol fatty acid ester is attached. The construction of a long-fiber nonwoven fabric made of thermoplastic fibers is disclosed.
　特許文献４は、アニオン界面活性剤、及びポリオキシアルキレン基含有ヒドロキシ脂肪酸多価アルコールエステルとジカルボン酸又はジカルボン酸誘導体との縮合物の少なくとも１つの水酸基を脂肪酸で封鎖したエステルを含む繊維処理剤の構成について開示する。 Patent Document 4 discloses a fiber treatment agent containing an anionic surfactant and an ester obtained by blocking at least one hydroxyl group of a condensate of a polyoxyalkylene group-containing hydroxy fatty acid polyhydric alcohol ester and a dicarboxylic acid or a dicarboxylic acid derivative with a fatty acid. The configuration will be disclosed.
特開２０１８－３５４５８号公報JP, 2018-35458, A 特許第３３６２３４８号公報Japanese Patent No. 3362348 特許第６３６０３９９号公報Patent No. 6360399 国際公開第２０１６／００２４７６号International Publication No. 2016/002476
　しかし、従来の処理剤では、硬水を溶媒とする場合の硬水安定性、またポリオレフィン系不織布処理時における不織布浸透性、及び親水化処理したポリオレフィン系不織布に求められる耐久親水性という各機能の両立を十分に図ることができなかった。 However, in the conventional treatment agent, hard water stability when hard water is used as a solvent, non-woven fabric permeability at the time of treatment of a polyolefin-based nonwoven fabric, and compatibility of each function of durable hydrophilicity required for a hydrophilic-treated polyolefin-based nonwoven fabric are achieved. I couldn't do it enough.
　本発明が解決しようとする課題は、硬水安定性、不織布浸透性、及び耐久親水性が良好なポリオレフィン系不織布用処理剤、及びポリオレフィン系不織布を提供する処にある。 The problem to be solved by the present invention is to provide a polyolefin-based non-woven fabric treatment agent having good hard water stability, non-woven fabric permeability, and durable hydrophilicity, and a polyolefin-based non-woven fabric.
　本発明者らは、前記の課題を解決するべく研究した結果、特定のエーテルエステル化合物、特定のポリエーテル変性シリコーンを併用するポリオレフィン系不織布用処理剤がまさしく好適であることを見出した。 As a result of research to solve the above-mentioned problems, the present inventors have found that a treatment agent for polyolefin non-woven fabric, which uses a specific ether ester compound and a specific polyether-modified silicone in combination, is just suitable.
　上記目的を達成するために、本発明の一態様では、下記のエーテルエステル化合物及び下記のポリエーテル変性シリコーンを含有することを特徴とするポリオレフィン系不織布用処理剤が提供される。エーテルエステル化合物は、多価アルコールと一価脂肪酸Ｘとのエステル化合物に対し炭素数２～４のアルキレンオキサイドを付加させた化合物と、一価脂肪酸Ｙとを縮合して得られるエーテルエステル化合物である。ポリエーテル変性シリコーンは、質量平均分子量が１，０００～１００，０００であるポリエーテル変性シリコーンである。 In order to achieve the above object, according to one aspect of the present invention, there is provided a polyolefin-based nonwoven fabric treating agent comprising the following ether ester compound and the following polyether-modified silicone. The ether ester compound is an ether ester compound obtained by condensing a compound obtained by adding an alkylene oxide having 2 to 4 carbon atoms to an ester compound of a polyhydric alcohol and a monovalent fatty acid X and a monovalent fatty acid Y. .. The polyether-modified silicone is a polyether-modified silicone having a weight average molecular weight of 1,000 to 100,000.
　前記エーテルエステル化合物は、炭素数２～６の２～４価のアルコールと炭素数１０～２６の一価脂肪酸Ｘとのエステル化合物１モルに対し炭素数２～４のアルキレンオキサイドを１～１００モルの割合で付加させた化合物１モルに対し、炭素数６～２６の一価脂肪酸Ｙを２～３モルの割合で縮合させたエーテルエステル化合物であることが好ましい。 The ether ester compound is 1 to 100 mol of an alkylene oxide having 2 to 4 carbon atoms to 1 mol of an ester compound of a divalent to tetravalent alcohol having 2 to 6 carbon atoms and a monovalent fatty acid X having 10 to 26 carbon atoms. It is preferable that the ether ester compound is obtained by condensing the monovalent fatty acid Y having 6 to 26 carbon atoms in a proportion of 2 to 3 moles per 1 mole of the compound added in the proportion of.
　前記ポリエーテル変性シリコーンは、質量平均分子量が３，０００～５０，０００のものであることが好ましい。 The polyether-modified silicone preferably has a mass average molecular weight of 3,000 to 50,000.
　前記ポリオレフィン系不織布用処理剤は、前記エーテルエステル化合物及び前記ポリエーテル変性シリコーンの含有割合の合計を１００質量部とすると、前記エーテルエステル化合物を３０～９９質量部及び前記ポリエーテル変性シリコーンを１～７０質量部の割合で含有することが好ましい。 When the total content of the ether ester compound and the polyether modified silicone is 100 parts by mass, the polyolefin-based non-woven fabric treating agent contains 30 to 99 parts by mass of the ether ester compound and 1 to 100 parts of the polyether modified silicone. It is preferably contained in a proportion of 70 parts by mass.
　ポリオレフィン系不織布用処理剤は更に、脂肪酸、有機スルホン酸、有機サルフェート、ポリオキシアルキレンアルキルリン酸エステル、及びこれらの塩から選ばれる少なくとも一つを含有することが好ましい。 The polyolefin-based nonwoven fabric treating agent preferably further contains at least one selected from fatty acids, organic sulfonic acids, organic sulfates, polyoxyalkylene alkyl phosphates, and salts thereof.
　ポリオレフィン系不織布用処理剤は、前記エーテルエステル化合物、前記ポリエーテル変性シリコーン、並びに前記脂肪酸、前記有機スルホン酸、前記有機サルフェート、前記ポリオキシアルキレンアルキルリン酸エステル、及びこれらの塩から選ばれる少なくとも一つの含有割合の合計を１００質量部とすると、前記エーテルエステル化合物を４０～８９．９９質量部、前記ポリエーテル変性シリコーンを１０～５０質量部、並びに前記脂肪酸、前記有機スルホン酸、前記有機サルフェート、前記ポリオキシアルキレンアルキルリン酸エステル、及びこれらの塩から選ばれる少なくとも一つを０．０１～１０質量部の割合で含有することが好ましい。 At least one selected from the ether ester compound, the polyether-modified silicone, and the fatty acid, the organic sulfonic acid, the organic sulfate, the polyoxyalkylene alkyl phosphate ester, and salts thereof. When the total of the two content ratios is 100 parts by mass, the ether ester compound is 40 to 89.99 parts by mass, the polyether-modified silicone is 10 to 50 parts by mass, and the fatty acid, the organic sulfonic acid, the organic sulfate, It is preferable to contain at least one selected from the polyoxyalkylene alkyl phosphates and salts thereof in a proportion of 0.01 to 10 parts by mass.
　本発明の別の態様では、前記ポリオレフィン系不織布用処理剤が付着していることを特徴とするポリオレフィン系不織布が提供される。 In another aspect of the present invention, there is provided a polyolefin-based nonwoven fabric, to which the above-mentioned polyolefin-based nonwoven fabric treating agent is adhered.
　本発明によれば、硬水安定性、不織布浸透性、及び耐久親水性を向上させることができる。 According to the present invention, hard water stability, nonwoven fabric permeability, and durable hydrophilicity can be improved.
　（第１実施形態）
　以下、本発明に係るポリオレフィン系不織布用処理剤（以下、処理剤という）を具体化した第１実施形態について説明する。本実施形態の処理剤は、下記のエーテルエステル化合物及び下記のポリエーテル変性シリコーンを含有する。エーテルエステル化合物は、多価アルコールと一価脂肪酸Ｘとのエステル化合物に対し炭素数２～４のアルキレンオキサイドを付加させた化合物と、一価脂肪酸Ｙとを縮合して得られるエーテルエステル化合物である。 (First embodiment)
Hereinafter, a first embodiment in which a polyolefin-based nonwoven fabric treating agent according to the present invention (hereinafter referred to as a treating agent) is embodied will be described. The treating agent of the present embodiment contains the following ether ester compound and the following polyether modified silicone. The ether ester compound is an ether ester compound obtained by condensing a compound obtained by adding an alkylene oxide having 2 to 4 carbon atoms to an ester compound of a polyhydric alcohol and a monovalent fatty acid X and a monovalent fatty acid Y. ..
　本実施形態の処理剤に供するエーテルエステル化合物を構成する多価アルコールの具体例としては、例えばエチレングリコール、プロピレングリコール、１，３－プロパンジオール、１，２－ブタンジオール、１，３－ブタンジオール、１，４－ブタンジオール、１，４－ブタンジオール、２－メチル－１，２－プロパンジオール、１，５－ペンタンジオール、１，６－ヘキサンジオール、２，５－ヘキサンジオール、２－メチル－２，４－ペンタンジオール、２，３－ジメチル－２，３－ブタンジオール、グリセリン、２－メチル－２－ヒドロキシメチル－１，３－プロパンジオール、２－エチル－２－ヒドロキシメチル－１，３－プロパンジオール、トリメチロールプロパン、ソルビタン、ペンタエリスリトール、ソルビトール等が挙げられる。 Specific examples of the polyhydric alcohol constituting the ether ester compound used in the treatment agent of the present embodiment include, for example, ethylene glycol, propylene glycol, 1,3-propanediol, 1,2-butanediol, 1,3-butanediol. 1,4-butanediol, 1,4-butanediol, 2-methyl-1,2-propanediol, 1,5-pentanediol, 1,6-hexanediol, 2,5-hexanediol, 2-methyl -2,4-pentanediol, 2,3-dimethyl-2,3-butanediol, glycerin, 2-methyl-2-hydroxymethyl-1,3-propanediol, 2-ethyl-2-hydroxymethyl-1, Examples include 3-propanediol, trimethylolpropane, sorbitan, pentaerythritol, sorbitol and the like.
　本実施形態の処理剤に供するエーテルエステル化合物を構成する一価脂肪酸Ｘは、飽和脂肪酸であっても不飽和脂肪酸であってもよく、また直鎖状であっても、分岐状であってもよく、また、ヒドロキシ基を有してもよい。その具体例としては、例えばペンタン酸、ヘキサン酸、オクタン酸、２－エチルヘキサン酸（オクチル酸）、デカン酸、ドデカン酸（ラウリン酸）、トリデカン酸、イソトリデカン酸、ヘキサデカン酸、オクタデカン酸（ステアリン酸）、イソオクタデカン酸（イソステアリン酸）、ヒドロキシオクタデカン酸、１２－ヒドロキシオクタデカン酸（１２－ヒドロキシステアリン酸）、オクタデセン酸、ヒドロキシオクタデセン酸、オクタデカジエン酸、オクタデカトリエン酸、ドコサン酸（ベヘニン酸）、テトラコサン酸、ヘキサコサン酸、オクタドコサン酸、オクタコサン酸、リシノール酸、オレイン酸等が挙げられる。本実施形態の処理剤に供するエーテルエステル化合物を構成する一価脂肪酸Ｙの具体例は、前記一価脂肪酸Ｘの具体例を適用することができる。 The monovalent fatty acid X constituting the ether ester compound used in the treatment agent of the present embodiment may be a saturated fatty acid or an unsaturated fatty acid, and may be linear or branched. Well, it may have a hydroxy group. Specific examples thereof include pentanoic acid, hexanoic acid, octanoic acid, 2-ethylhexanoic acid (octylic acid), decanoic acid, dodecanoic acid (lauric acid), tridecanoic acid, isotridecanoic acid, hexadecanoic acid, octadecanoic acid (stearic acid). ), isooctadecanoic acid (isostearic acid), hydroxyoctadecanoic acid, 12-hydroxyoctadecanoic acid (12-hydroxystearic acid), octadecenoic acid, hydroxyoctadecenoic acid, octadecadienoic acid, octadecatrienoic acid, docosanoic acid (behenic acid) ), tetracosanoic acid, hexacosanoic acid, octadocosanoic acid, octacosanoic acid, ricinoleic acid, oleic acid and the like. The specific example of the monovalent fatty acid X can be applied to the specific example of the monovalent fatty acid Y constituting the ether ester compound used in the treatment agent of the present embodiment.
　本実施形態の処理剤に供するエーテルエステル化合物を構成する炭素数２～４のアルキレンオキサイドの具体例としては、エチレンオキサイド、プロピレンオキサイド等が挙げられる。アルキレンオキサイドの付加モル数は、特に限定されないが、１～１００モルの割合で付加させることが好ましい。かかる数値範囲内に規定することにより、本発明の効果をより向上させることができる。また、この処理剤により親水化処理したポリオレフィン系不織布の初期親水性を向上させることができる。 Specific examples of the alkylene oxide having 2 to 4 carbon atoms which constitutes the ether ester compound used in the treating agent of the present embodiment include ethylene oxide and propylene oxide. The number of moles of alkylene oxide added is not particularly limited, but it is preferable to add the alkylene oxide in a ratio of 1 to 100 moles. The effect of the present invention can be further improved by defining within such a numerical range. In addition, the initial hydrophilicity of the polyolefin-based nonwoven fabric hydrophilized with this treating agent can be improved.
　本実施形態の処理剤に供するエーテルエステル化合物は、炭素数２～６の２～４価のアルコールと炭素数１０～２６の一価脂肪酸Ｘとのエステル化合物１モルに対し炭素数２～４のアルキレンオキサイドを１～１００モルの割合で付加させた化合物１モルに対し、炭素数６～２６の一価脂肪酸Ｙを２～３モルの割合で縮合させた化合物であることが好ましい。かかる構成により、本発明の効果をより向上させることができる。特に、この処理剤により親水化処理したポリオレフィン系不織布の耐久親水性を向上させることができる。 The ether ester compound used in the treatment agent of the present embodiment has 2 to 4 carbon atoms per mol of an ester compound of a 2 to 4 carbon alcohol having 2 to 6 carbon atoms and a monovalent fatty acid X having 10 to 26 carbon atoms. A compound in which a monovalent fatty acid Y having 6 to 26 carbon atoms is condensed at a ratio of 2 to 3 mols per 1 mol of a compound to which alkylene oxide is added at a ratio of 1 to 100 mols is preferable. With such a configuration, the effect of the present invention can be further improved. In particular, it is possible to improve the durable hydrophilicity of the polyolefin-based nonwoven fabric which has been hydrophilized with this treating agent.
　本実施形態の処理剤に供するエーテルエステル化合物の具体例としては、例えばポリオキシエチレン硬化ヒマシ油のオレイン酸との縮合物、ポリオキシエチレン硬化ヒマシ油のラウリン酸との縮合物、ポリオキシエチレン硬化ヒマシ油のステアリン酸との縮合物、ポリオキシエチレン硬化ヒマシ油のベヘニン酸との縮合物、ポリオキシエチレン硬化ヒマシ油のオクタドコサン酸との縮合物、ポリオキシエチレン及びポリオキシプロピレン硬化ヒマシ油のステアリン酸との縮合物、ポリオキシエチレン及びポリオキシプロピレン硬化ヒマシ油のラウリン酸との縮合物、ポリオキシエチレン及びポリオキシプロピレン硬化ヒマシ油のオクチル酸との縮合物、ポリオキシエチレン及びポリオキシプロピレン硬化ヒマシ油のオレイン酸との縮合物、ポリオキシエチレン及びポリオキシプロピレン硬化ヒマシ油のペンタン酸との縮合物、グリセリンと１２－ヒドロキシステアリン酸とのエステルのポリオキシエチレン付加物とオレイン酸との縮合物、グリセリンとリシノール酸とのエステルのポリオキシエチレン付加物とラウリン酸との縮合物、グリセリンとラウリン酸とのエステルのポリオキシエチレン付加物とラウリン酸との縮合物、グリセリンとステアリン酸とのエステルのポリオキシエチレン付加物とラウリン酸との縮合物、グリセリンとテトラコサン酸とのエステルのポリオキシエチレン付加物とラウリン酸との縮合物、グリセリンとオクタコサン酸とのエステルのポリオキシエチレン付加物とオレイン酸との縮合物、エチレングリコールと１２－ヒドロキシステアリン酸とのエステルのポリオキシエチレン付加物とオレイン酸との縮合物、トリメチロールプロパンと１２－ヒドロキシステアリン酸とのエステルのポリオキシエチレン付加物とオレイン酸との縮合物、ソルビタンと１２－ヒドロキシステアリン酸とのエステルのポリオキシエチレン付加物とラウリン酸との縮合物、ソルビタンと１２－ヒドロキシステアリン酸とのエステルのポリオキシエチレン付加物とオレイン酸との縮合物、ソルビタンとペンタン酸とのエステルのポリオキシエチレン付加物とオレイン酸との縮合物、ソルビトールとラウリン酸とのエステルのポリオキシエチレン及びポリオキシプロピレン付加物とラウリン酸との縮合物等が挙げられる。なお、硬化ヒマシ油は、１２－ヒドロキシステアリン酸約８７質量％とステアリン酸約１３質量％を含む脂肪酸がグリセリン（炭素数３の３価のアルコール）とエステル結合した構成を有している。上述したエーテルエステル化合物は、１種を単独で使用してもよく、２種以上を組み合わせて使用してもよい。 Specific examples of the ether ester compound used in the treatment agent of the present embodiment include, for example, polyoxyethylene hydrogenated castor oil condensate with oleic acid, polyoxyethylene hydrogenated castor oil condensate with lauric acid, and polyoxyethylene hydrogenated Castor oil condensation product with stearic acid, polyoxyethylene hydrogenated castor oil condensation product with behenic acid, polyoxyethylene hydrogenated castor oil condensation product with octadocosanoic acid, polyoxyethylene and polyoxypropylene hydrogenated castor oil stearin oil Condensate with acid, polyoxyethylene and polyoxypropylene hardened condensate with castor oil with lauric acid, polyoxyethylene and polyoxypropylene hardened condensate with castor oil with octyl acid, polyoxyethylene and polyoxypropylene hardened Castor oil condensate with oleic acid, polyoxyethylene and polyoxypropylene hydrogenated castor oil condensate with pentanoic acid, polyoxyethylene adduct of ester of glycerin with 12-hydroxystearic acid and oleic acid , A condensate of a polyoxyethylene adduct of an ester of glycerin and ricinoleic acid and lauric acid, a condensate of a polyoxyethylene adduct of an ester of glycerin and lauric acid and lauric acid, of glycerin and stearic acid Condensates of polyoxyethylene adducts of esters with lauric acid, polyoxyethylene adducts of esters of glycerin with tetracosanoic acid and lauric acid, polyoxyethylene adducts of esters of glycerin with octacosanoic acid Condensation product of oleic acid, polyoxyethylene addition product of ester of ethylene glycol and 12-hydroxystearic acid and condensation product of oleic acid, polyoxyethylene addition product of ester of trimethylolpropane and 12-hydroxystearic acid Condensation product of sorbican with oleic acid, polyoxyethylene adduct of sorbitan with 12-hydroxystearic acid and lauric acid, polyoxyethylene addition product of sorbitan with 12-hydroxystearic acid and olein Condensation product with acid, polyoxyethylene adduct of sorbitan and pentanoic acid ester with oleic acid, polyoxyethylene and polyoxypropylene adduct of sorbitol ester with lauric acid and lauric acid Things etc. are mentioned. The hydrogenated castor oil has a structure in which a fatty acid containing about 87% by mass of 12-hydroxystearic acid and about 13% by mass of stearic acid is ester-bonded with glycerin (trivalent alcohol having 3 carbon atoms). The ether ester compounds described above may be used alone or in combination of two or more.
　本実施形態の処理剤に使用するポリエーテル変性シリコーンは、質量平均分子量が１，０００～１００，０００の範囲内であり、好ましくは３，０００～５０，０００の範囲内である。かかる範囲に規定されることにより、本発明の効果、特に不織布浸透性をより向上させることができる。質量平均分子量は、ゲル浸透クロマトグラフィー（以下、ＧＰＣという）測定によりポリスチレン換算で求めることができる。 The polyether-modified silicone used in the treatment agent of the present embodiment has a mass average molecular weight of 1,000 to 100,000, preferably 3,000 to 50,000. By defining the content in such a range, the effect of the present invention, especially the non-woven fabric permeability, can be further improved. The mass average molecular weight can be determined in terms of polystyrene by gel permeation chromatography (hereinafter referred to as GPC) measurement.
　ポリエーテル変性シリコーンの質量平均分子量以外の構成は、特に制限はなく、例えば、ＡＢｎ型ポリエーテル変性シリコーン、側鎖型ポリエーテル変性シリコーン、両末端型ポリエーテル変性シリコーン、ポリエーテル基とアルキル基の両方が側鎖又は末端に導入されたアルキルポリエーテル変性シリコーン、側鎖型ポリエーテル変性シリコーンのポリエーテル鎖末端部分が脂肪族化合物又は脂肪酸化合物で封鎖されたもの、両末端型ポリエーテル変性シリコーンのポリエーテル鎖末端部分が脂肪族化合物又は脂肪酸化合物で封鎖されたもの等が挙げられる。これらの成分は、１種を単独で使用してもよく、２種以上を組み合わせて使用してもよい。 The constitution other than the weight average molecular weight of the polyether modified silicone is not particularly limited, and examples thereof include ABn type polyether modified silicone, side chain type polyether modified silicone, both-end type polyether modified silicone, polyether group and alkyl group. Alkyl polyether modified silicone in which both are introduced into the side chain or terminal, polyether chain end portion of the side chain type polyether modified silicone blocked with an aliphatic compound or fatty acid compound, both ends type polyether modified silicone Examples thereof include those in which the end portion of the polyether chain is blocked with an aliphatic compound or a fatty acid compound. These components may be used alone or in combination of two or more.
　本実施形態の処理剤に供するポリエーテル変性シリコーンは、例えば以下の化学式（１）の構造を有することが好ましい。 The polyether-modified silicone used for the treating agent of the present embodiment preferably has, for example, the structure of the following chemical formula (1).
Figure JPOXMLDOC01-appb-C000001
 　化学式（１）において、Ｘは、下記の化学式（２）で示される有機基を示す。Ｙは、下記の化学式（３）で示される有機基を示す。Ｘ，Ｙの繰り返しは、それぞれブロック又はランダムのいずれの方法で繰り返されてもよい。ａ，ｂは、それぞれ１以上の整数を示す。
Figure JPOXMLDOC01-appb-C000001
 In the chemical formula (1), X represents an organic group represented by the following chemical formula (2). Y represents an organic group represented by the following chemical formula (3). The repetition of X and Y may be repeated in either block or random manner. a and b each represent an integer of 1 or more.
Figure JPOXMLDOC01-appb-C000002
 　化学式（２）において、Ｒ１は、水素原子、炭素数１～２０のアルキル基又は炭素数２～２０のアルケニル基を示す。
Figure JPOXMLDOC01-appb-C000002
 In the chemical formula (2), R 1 represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms or an alkenyl group having 2 to 20 carbon atoms.
Figure JPOXMLDOC01-appb-C000003
 　化学式（３）において、Ｒ２は、炭素数３～６のアルキレン基を示す。Ｒ３は、水素原子、炭素数１～２０のアルキル基、炭素数２～２０のアルケニル基、又は炭素数２～８のアシル基を示す。ｃ，ｄは、ｃ＋ｄ＝１～２００となるような整数（ただし、ｃ≧０、ｄ≧０。）を示す。
Figure JPOXMLDOC01-appb-C000003
 In the chemical formula (3), R 2 represents an alkylene group having 3 to 6 carbon atoms. R 3 represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, or an acyl group having 2 to 8 carbon atoms. c and d are integers such that c+d=1 to 200 (where c≧0 and d≧0).
　本実施形態の処理剤中における前記エーテルエステル化合物及び前記ポリエーテル変性シリコーンの含有割合は、特に限定されない。前記エーテルエステル化合物及び前記ポリエーテル変性シリコーンの含有割合の合計を１００質量部とすると、処理剤は、前記エーテルエステル化合物を３０～９９質量部及び前記ポリエーテル変性シリコーンを１～７０質量部の割合で含有することが好ましい。かかる範囲に規定することにより本発明の効果、特に耐久親水性をより向上させることができる。 The content ratio of the ether ester compound and the polyether modified silicone in the treatment agent of the present embodiment is not particularly limited. Assuming that the total content of the ether ester compound and the polyether modified silicone is 100 parts by mass, the treating agent is 30 to 99 parts by mass of the ether ester compound and 1 to 70 parts by mass of the polyether modified silicone. It is preferable to contain. By defining the content in such a range, the effects of the present invention, particularly the durable hydrophilicity, can be further improved.
　本実施形態の処理剤は、更に、脂肪酸、有機スルホン酸、有機サルフェート、ポリオキシアルキレンアルキルリン酸エステル、及びこれらの塩から選ばれる少なくとも一つを含有することが好ましい。これらの成分は、１種を単独で使用してもよく、２種以上を組み合わせて使用してもよい。かかる構成により、エマルションの乳化安定性をより向上させることができる。 The treatment agent of the present embodiment preferably further contains at least one selected from fatty acids, organic sulfonic acids, organic sulfates, polyoxyalkylene alkyl phosphates, and salts thereof. These components may be used alone or in combination of two or more. With this configuration, the emulsion stability of the emulsion can be further improved.
　脂肪酸は、飽和脂肪酸であっても不飽和脂肪酸であってもよく、また直鎖状であっても、分岐状であってもよく、また、ヒドロキシ基を有してもよい。その具体例としては、例えばペンタン酸、ヘキサン酸、オクタン酸、２－エチルヘキサン酸（オクチル酸）、デカン酸、ドデカン酸（ラウリン酸）、トリデカン酸、イソトリデカン酸、ヘキサデカン酸、オクタデカン酸（ステアリン酸）、イソオクタデカン酸（イソステアリン酸）、ヒドロキシオクタデカン酸、１２－ヒドロキシオクタデカン酸（１２－ヒドロキシステアリン酸）、オクタデセン酸、ヒドロキシオクタデセン酸、オクタデカジエン酸、オクタデカトリエン酸、ドコサン酸（ベヘニン酸）、テトラコサン酸、ヘキサコサン酸、オクタドコサン酸、オクタコサン酸、リシノール酸、オレイン酸等が挙げられる。脂肪酸の塩の例としては、例えばアルカリ金属塩が挙げられ、より具体的にはそれら脂肪酸のナトリウム塩、カリウム塩等が挙げられる。 The fatty acid may be a saturated fatty acid or an unsaturated fatty acid, may be linear or branched, and may have a hydroxy group. Specific examples thereof include pentanoic acid, hexanoic acid, octanoic acid, 2-ethylhexanoic acid (octylic acid), decanoic acid, dodecanoic acid (lauric acid), tridecanoic acid, isotridecanoic acid, hexadecanoic acid, octadecanoic acid (stearic acid). ), isooctadecanoic acid (isostearic acid), hydroxyoctadecanoic acid, 12-hydroxyoctadecanoic acid (12-hydroxystearic acid), octadecenoic acid, hydroxyoctadecenoic acid, octadecadienoic acid, octadecatrienoic acid, docosanoic acid (behenic acid) ), tetracosanoic acid, hexacosanoic acid, octadocosanoic acid, octacosanoic acid, ricinoleic acid, oleic acid and the like. Examples of fatty acid salts include, for example, alkali metal salts, and more specifically, sodium salts, potassium salts and the like of these fatty acids.
　有機スルホン酸の具体例としては、例えばヘプチルスルホン酸、２－エチルヘキシルスルホン酸、オクチルスルホン酸、ノニルスルホン酸、デシルスルホン酸、ウンデシルスルホン酸、ドデシルスルホン酸、トリデシルスルホン酸、デシルベンゼンスルホン酸、ウンデシルベンゼンスルホン酸、ドデシルベンゼンスルホン酸、トリデシルベンゼンスルホン酸、テトラデシルベンゼンスルホン酸、ペンタデシルベンゼンスルホン酸、ヘキサデシルベンゼンスルホン酸、ヘキサデシルジフェニルエーテルジスルホン酸、スルホコハク酸ジ－２－エチルヘキシル、ジオクチルスルホコハク酸、スルホコハク酸ジドデシル、スルホコハク酸ジヘキサデシル等が挙げられる。有機スルホン酸の塩の例としては、例えばアルカリ金属塩が挙げられ、より具体的にはそれら有機スルホン酸のナトリウム塩、カリウム塩等が挙げられる。 Specific examples of the organic sulfonic acid include, for example, heptylsulfonic acid, 2-ethylhexylsulfonic acid, octylsulfonic acid, nonylsulfonic acid, decylsulfonic acid, undecylsulfonic acid, dodecylsulfonic acid, tridecylsulfonic acid, decylbenzenesulfonic acid. Undecylbenzenesulfonic acid, dodecylbenzenesulfonic acid, tridecylbenzenesulfonic acid, tetradecylbenzenesulfonic acid, pentadecylbenzenesulfonic acid, hexadecylbenzenesulfonic acid, hexadecyldiphenyletherdisulfonic acid, di-2-ethylhexyl sulfosuccinate, Dioctyl sulfosuccinic acid, didodecyl sulfosuccinate, dihexadecyl sulfosuccinate and the like can be mentioned. Examples of salts of organic sulfonic acids include alkali metal salts, and more specifically, sodium salts, potassium salts, and the like of these organic sulfonic acids.
　有機サルフェートの具体例としては、例えば４－メチルペンチル硫酸、オクチル硫酸、２－エチルヘキシル硫酸、イソノニル硫酸、デシル硫酸、１－メチルノニル硫酸、イソデシル硫酸、ドデシル硫酸、２－ブチルオクチル硫酸、テトラデシル硫酸、ペンタデシル硫酸、ヘキサデシル硫酸、ヘプタデシル硫酸、３，９－ジエチルトリデカン－６－イル硫酸、オクタデシル硫酸、ポリオキシエチレンドデシル硫酸、ポリオキシエチレンオクチルフェニルエーテル硫酸、ポリオキシエチレンノニルフェニルエーテル硫酸等が挙げられる。有機サルフェートの塩の例としては、例えばアルカリ金属塩が挙げられ、より具体的にはそれら有機サルフェートのナトリウム塩、カリウム塩等が挙げられる。 Specific examples of the organic sulfate include, for example, 4-methylpentylsulfate, octylsulfate, 2-ethylhexylsulfate, isononylsulfate, decylsulfate, 1-methylnonylsulfate, isodecylsulfate, dodecylsulfate, 2-butyloctylsulfate, tetradecylsulfate, pentadecylsulfate. Examples thereof include sulfuric acid, hexadecyl sulfuric acid, heptadecyl sulfuric acid, 3,9-diethyltridecane-6-yl sulfuric acid, octadecyl sulfuric acid, polyoxyethylene dodecyl sulfuric acid, polyoxyethylene octylphenyl ether sulfuric acid, polyoxyethylene nonylphenyl ether sulfuric acid and the like. Examples of salts of organic sulfates include, for example, alkali metal salts, and more specifically, sodium salts, potassium salts and the like of these organic sulfates.
　ポリオキシアルキレンアルキルリン酸エステルの具体例としては、例えばポリオキシエチレン（アルキレンオキサイドの付加モル数（以下同じ）：１０モル）オクチルエーテルリン酸エステル、ポリオキシエチレン（３モル）イソオクチルエーテルリン酸エステル、ポリオキシエチレン（３モル）ポリオキシプロピレン（６モル）－２－エチルヘキシルエーテルリン酸エステル、ポリオキシエチレン（２モル）デシルエーテルリン酸エステル、ポリオキシエチレン（２モル）ポリオキシプロピレン（６モル）デシルエーテルリン酸エステル、ポリオキシエチレン（２モル）ポリオキシプロピレン（６モル）ドデシルエーテルリン酸エステル等が挙げられる。ポリオキシアルキレンアルキルリン酸エステルの塩の例としては、例えばアルカリ金属塩が挙げられ、より具体的にはそれらポリオキシアルキレンアルキルリン酸エステルのナトリウム塩、カリウム塩等が挙げられる。これらのポリオキシアルキレンアルキルリン酸エステル又はその塩の具体例には、例えばモノエステル体の単独物、ジエステル体の単独物、モノエステル体とジエステル体との混合物が含まれる。また、ジエステル体には、同一のアルキル基を有するジエステル体（対称形のジエステル）と、異なるアルキル基を有するジエステル体（非対称形のジエステル）とがある。 Specific examples of the polyoxyalkylene alkyl phosphate ester include, for example, polyoxyethylene (addition mole number of alkylene oxide (the same applies hereinafter): 10 moles) octyl ether phosphate ester, polyoxyethylene (3 moles) isooctyl ether phosphate. Ester, polyoxyethylene (3 mol) polyoxypropylene (6 mol)-2-ethylhexyl ether phosphate, polyoxyethylene (2 mol) decyl ether phosphate, polyoxyethylene (2 mol) polyoxypropylene (6 Examples thereof include (mol) decyl ether phosphate and polyoxyethylene (2 mol) polyoxypropylene (6 mol) dodecyl ether phosphate. Examples of salts of polyoxyalkylene alkyl phosphates include alkali metal salts, and more specifically, sodium salts, potassium salts and the like of these polyoxyalkylene alkyl phosphates. Specific examples of these polyoxyalkylene alkyl phosphates or salts thereof include, for example, monoesters alone, diesters alone, and mixtures of monoesters and diesters. The diester body includes a diester body having the same alkyl group (symmetrical diester) and a diester body having different alkyl groups (asymmetrical diester).
　本実施形態の処理剤中における前記エーテルエステル化合物、前記ポリエーテル変性シリコーン、並びに前記脂肪酸、前記有機スルホン酸、前記有機サルフェート、前記ポリオキシアルキレンアルキルリン酸エステル、及びこれらの塩から選ばれる少なくとも一つの含有割合は、特に限定されない。前記エーテルエステル化合物、前記ポリエーテル変性シリコーン、並びに前記脂肪酸、前記有機スルホン酸、前記有機サルフェート、前記ポリオキシアルキレンアルキルリン酸エステル、及びこれらの塩から選ばれる少なくとも一つの含有割合の合計を１００質量部とすると、処理剤は、前記エーテルエステル化合物を４０～８９．９９質量部、前記ポリエーテル変性シリコーンを１０～５０質量部、並びに前記脂肪酸、前記有機スルホン酸、前記有機サルフェート、前記ポリオキシアルキレンアルキルリン酸エステル、及びこれらの塩から選ばれる少なくとも一つを０．０１～１０質量部の割合で含有することが好ましい。かかる構成により、本発明の構成、特に耐久親水性をより向上させることができる。また、この処理剤により親水化処理したポリオレフィン系不織布の初期親水性を向上させることができる。 At least one selected from the ether ester compound, the polyether modified silicone, and the fatty acid, the organic sulfonic acid, the organic sulfate, the polyoxyalkylene alkyl phosphate ester, and salts thereof in the treatment agent of the present embodiment. The content ratio of the two is not particularly limited. The total amount of at least one selected from the ether ester compound, the polyether modified silicone, and the fatty acid, the organic sulfonic acid, the organic sulfate, the polyoxyalkylene alkyl phosphate ester, and salts thereof is 100 mass. The amount of the treating agent is 40 to 89.99 parts by mass of the ether ester compound, 10 to 50 parts by mass of the polyether modified silicone, the fatty acid, the organic sulfonic acid, the organic sulfate, and the polyoxyalkylene. It is preferable to contain at least one selected from alkyl phosphates and salts thereof in a proportion of 0.01 to 10 parts by mass. With such a constitution, the constitution of the present invention, particularly the durable hydrophilicity, can be further improved. In addition, the initial hydrophilicity of the polyolefin-based nonwoven fabric hydrophilized with this treating agent can be improved.
　（第２実施形態）
　次に、本発明のポリオレフィン系不織布（以下、不織布という）を具体化した第２実施形態について説明する。本実施形態に係る不織布は、第１実施形態の処理剤が付着しているポリオレフィン系合成繊維を含む不織布である。 (Second embodiment)
Next, a second embodiment in which the polyolefin-based nonwoven fabric of the present invention (hereinafter referred to as a nonwoven fabric) is embodied will be described. The non-woven fabric according to the present embodiment is a non-woven fabric containing a polyolefin-based synthetic fiber to which the treatment agent of the first embodiment is attached.
　ポリオレフィン系合成繊維としては、特に限定されず、例えばポリエチレン繊維、ポリプロピレン繊維、ポリブテン繊維等が挙げられる。これらは、１種を単独で使用してもよく、２種以上を組み合わせて使用してもよい。また、芯鞘構造の複合繊維であって、芯、鞘部のいずれか又は両者がポリオレフィン系繊維である複合繊維、例えば鞘部がポリエチレン繊維であるポリエチレン／ポリプロピレン複合繊維、ポリエチレン／ポリエステル複合繊維等であってもよい。不織布の種類としては、特に限定されないが、例えばスパンボンド、メルトブローン、スパンボンドとメルトブローンの複合不織布等が挙げられる。 The polyolefin synthetic fiber is not particularly limited, and examples thereof include polyethylene fiber, polypropylene fiber, polybutene fiber and the like. These may be used alone or in combination of two or more. In addition, a composite fiber having a core-sheath structure, in which one or both of the core and the sheath is a polyolefin fiber, for example, a polyethylene/polypropylene composite fiber in which the sheath is a polyethylene fiber, a polyethylene/polyester composite fiber, etc. May be The type of non-woven fabric is not particularly limited, and examples thereof include spunbond, meltblown, and spunbond/meltblown composite non-woven fabric.
　第１実施形態の処理剤は、ポリオレフィン系不織布に対し溶媒を含まない第１実施形態の処理剤として好ましくは０．０５～３質量％、より好ましくは０．１～１質量％の割合となるようにポリオレフィン系不織布に対し付着させる。第１実施形態の処理剤を合成繊維に付着させる際の処理剤の形態は、例えば水性液等であってもよい。なお、本発明の効果を阻害しない範囲内において有機溶媒溶液が少量含まれてもよい。 The treating agent of the first embodiment is preferably 0.05 to 3% by mass, more preferably 0.1 to 1% by mass as the treating agent of the first embodiment containing no solvent with respect to the polyolefin-based nonwoven fabric. To adhere to the polyolefin-based nonwoven fabric. The form of the treating agent when the treating agent of the first embodiment is attached to the synthetic fiber may be, for example, an aqueous liquid. In addition, a small amount of the organic solvent solution may be contained within a range that does not impair the effects of the present invention.
　より具体的には、まず第１実施形態の処理剤を例えば水で希釈して濃度０．５～２０質量％の水性液とし、必要によりさらに希釈し、該水性液をポリオレフィン系合成繊維に対し、溶媒を含まない第１実施形態の処理剤として０．０５～３質量％の割合となるよう付着させる処理方法が好ましい。付着方法としては、公知の方法、例えば浸漬法、スプレー法、ローラー給油法、計量ポンプを用いたガイド給油法等が適用できる。また、噴霧法、ロールコーター、グラビアコーター、ダイコーター、カーテンコーター等を用いてもよい。 More specifically, first, the treating agent of the first embodiment is diluted with, for example, water to obtain an aqueous liquid having a concentration of 0.5 to 20% by mass, and further diluted as necessary, and the aqueous liquid is added to the polyolefin-based synthetic fiber. It is preferable to use a treatment method in which the treatment agent of the first embodiment containing no solvent is attached in an amount of 0.05 to 3% by mass. As the attachment method, a known method, for example, a dipping method, a spray method, a roller oiling method, a guide oiling method using a metering pump, or the like can be applied. Further, a spray method, a roll coater, a gravure coater, a die coater, a curtain coater or the like may be used.
　上記実施形態の処理剤及び不織布によれば、以下のような効果を得ることができる。 According to the treatment agent and the non-woven fabric of the above embodiment, the following effects can be obtained.
　（１）上記実施形態では、上記のエーテルエステル化合物及び所定の質量平均分子量のポリエーテル変性シリコーンを含有する処理剤を構成した。したがって、硬水を溶媒とする場合の硬水安定性を向上させることができる。また、ポリオレフィン系不織布処理時における不織布浸透性を向上させることができる。また、親水化処理したポリオレフィン系不織布に優れた耐久親水性を付与できる。 (1) In the above embodiment, a treating agent containing the above ether ester compound and a polyether-modified silicone having a predetermined mass average molecular weight is constituted. Therefore, the stability of hard water when hard water is used as a solvent can be improved. Further, it is possible to improve the non-woven fabric permeability during the treatment of the polyolefin-based non-woven fabric. In addition, excellent durable hydrophilicity can be imparted to the hydrophilic hydrophilic non-woven fabric.
　（２）また、親水化処理したポリオレフィン系不織布に優れた初期親水性を付与できる。また、処理剤の乳化安定性を良好にすることができる。 (2) Also, excellent initial hydrophilicity can be imparted to the hydrophilic non-woven fabric that has been hydrophilized. Further, the emulsion stability of the treatment agent can be improved.
　なお、上記実施形態は以下のように変更してもよい。 The above embodiment may be modified as follows.
　・上記実施形態の処理剤には、本発明の効果を阻害しない範囲内において、処理剤の品質保持のための安定化剤や制電剤として、つなぎ剤、酸化防止剤、紫外線吸収剤等の処理剤に通常に用いられる成分をさらに配合してもよい。 -The treatment agent of the above-mentioned embodiment, as long as the effect of the present invention is not impaired, as a stabilizer or an antistatic agent for maintaining the quality of the treatment agent, a binder, an antioxidant, an ultraviolet absorber, etc. You may mix|blend the component normally used with a processing agent.
　以下、本発明の構成及び効果をより具体的に説明するため、実施例等を挙げるが、本発明がこれらの実施例に限定されるというものではない。尚、以下の実施例及び比較例の説明において、部は質量部を、また％は質量％を意味する。 Examples will be given below to more specifically describe the configuration and effects of the present invention, but the present invention is not limited to these examples. In the following description of Examples and Comparative Examples, “part” means “part by mass” and “%” means “% by mass”.
　＜試験区分１＞
　・エーテルエステル化合物（Ａ－１）の合成
　硬化ヒマシ油１モルに対し、触媒として適量の水酸化ナトリウムをオートクレーブに仕込み、エチレンオキサイド２５モルを圧入し、エーテル化を行った。さらに一価脂肪酸Ｙとしてオレイン酸３モルとエステル化を行うことでエーテルエステル化合物（Ａ－１）を得た。 <Test category 1>
-Synthesis of ether ester compound (A-1) To 1 mol of hydrogenated castor oil, an appropriate amount of sodium hydroxide as a catalyst was charged in an autoclave, and 25 mol of ethylene oxide was press-fitted to carry out etherification. Further, as a monovalent fatty acid Y, an ester compound (A-1) was obtained by esterification with 3 mol of oleic acid.
　エーテルエステル化合物（Ａ－１）と同様の手順で、表１に記載のエーテルエステル化合物（Ａ－３），（Ａ－４），（Ａ－８）～（Ａ－１１），（Ａ－１６）～（Ａ－２０），（Ａ－２２），（Ａ－２６），（Ａ－２７），（ｒａ－３），（ｒａ－４）を合成した。 By the same procedure as for the ether ester compound (A-1), the ether ester compounds (A-3), (A-4), (A-8) to (A-11), (A-16) shown in Table 1 were used. ) To (A-20), (A-22), (A-26), (A-27), (ra-3) and (ra-4) were synthesized.
　・エーテルエステル化合物（Ａ－２）の合成
　多価アルコールとしてグリセリン１モルと、一価脂肪酸Ｘとして１２－ヒドロキシステアリン酸３モルを反応容器に仕込み、エステル化を行った。このエステル化合物をオートクレーブに仕込み、触媒として適量の水酸化カリウムを添加した。エチレンオキサイド２６モルを圧入し、エーテル化を行った。その後に、さらに一価脂肪酸Ｙとしてオレイン酸２モルとエステル化を行うことでエーテルエステル化合物（Ａ－２）を得た。 -Synthesis of ether ester compound (A-2) 1 mol of glycerin as a polyhydric alcohol and 3 mol of 12-hydroxystearic acid as a monovalent fatty acid X were charged in a reaction vessel for esterification. This ester compound was charged into an autoclave, and an appropriate amount of potassium hydroxide was added as a catalyst. 26 mol of ethylene oxide was injected under pressure to carry out etherification. Then, the ether ester compound (A-2) was obtained by further esterifying with 2 mol of oleic acid as the monovalent fatty acid Y.
　エーテルエステル化合物（Ａ－２）と同様の手順で、表１に記載のエーテルエステル化合物（Ａ－５）～（Ａ－７），（Ａ－１２）～（Ａ－１５），（Ａ－２１），（Ａ－２３）～（Ａ－２５），（ｒａ－１），（ｒａ－２）を合成した。 By the same procedure as the ether ester compound (A-2), the ether ester compounds (A-5) to (A-7), (A-12) to (A-15) and (A-21) shown in Table 1 were used. ), (A-23) to (A-25), (ra-1) and (ra-2) were synthesized.
　エーテルエステル化合物（Ａ－１）～（Ａ－２７），（ｒａ－１）～（ｒａ－４）の原料となる多価アルコールの種類、一価脂肪酸Ｘの種類及び縮合モル数、アルキレンオキサイドの種類及び付加モル数、一価脂肪酸Ｙの種類及び縮合モル数をそれぞれ表１に示す。 Types of polyhydric alcohols used as raw materials for the ether ester compounds (A-1) to (A-27) and (ra-1) to (ra-4), types of monovalent fatty acid X and the number of condensation moles, and alkylene oxides Table 1 shows the types and the number of added moles, the type of the monovalent fatty acid Y and the number of condensed moles.
Figure JPOXMLDOC01-appb-T000004
 　以下で説明する実施例及び比較例で用いたポリエーテル変性シリコーンのポリエーテル変性基の末端の種類、分子量からアルキレンオキサイドを除いた部分のシリコーンの比率（Ｓｉ％）、アルキレンオキサイドに占めるエチレンオキサイド（ＥＯ）のモル比（％）、及び質量平均分子量を表２に示す。ＥＯのモル比（％）は、（ＥＯのモル数／各アルキレンオキサイドの合計モル数）×１００として計算される。
Figure JPOXMLDOC01-appb-T000004
 The type of the end of the polyether-modified group of the polyether-modified silicone used in the examples and comparative examples described below, the ratio of the silicone in the portion excluding the alkylene oxide from the molecular weight (Si%), and the ethylene oxide (%) in the alkylene oxide ( Table 2 shows the molar ratio (%) of EO) and the mass average molecular weight. The molar ratio (%) of EO is calculated as (moles of EO/total mols of each alkylene oxide)×100.
Figure JPOXMLDOC01-appb-T000005
 　＜試験区分２＞
　・ポリオレフィン系不織布用処理剤（実施例１）の１０％水性液の調製
　Ａ成分としてエーテルエステル化合物（Ａ－１）２７．５ｇ、Ｂ成分としてポリエーテル変性シリコーン（Ｂ－１）１８．５ｇ、及びＣ成分としてラウリン酸（Ｃ－１）４．０ｇを混合し、４５０ｇのイオン交換水を加え、１０％水性液を得た。
Figure JPOXMLDOC01-appb-T000005
 <Test category 2>
Preparation of 10% aqueous solution of polyolefin-based nonwoven fabric treating agent (Example 1) 27.5 g of ether ester compound (A-1) as component A, 18.5 g of polyether-modified silicone (B-1) as component B, And 4.0 g of lauric acid (C-1) as the C component were mixed, and 450 g of ion-exchanged water was added to obtain a 10% aqueous solution.
　・ポリオレフィン系不織布用処理剤（実施例２～３７及び比較例１～８）の調製
　実施例１と同様の手順で不織布用処理剤１０％水性液（実施例２～３７及び比較例１～８）を調製した。 Preparation of polyolefin-based nonwoven fabric treating agent (Examples 2-37 and Comparative Examples 1-8) In the same procedure as in Example 1, a nonwoven fabric treating agent 10% aqueous solution (Examples 2-37 and Comparative Examples 1-8) was prepared. ) Was prepared.
　実施例１～３７及び比較例１～８で使用したエーテルエステル化合物（Ａ）の種類及び比率、ポリエーテル変性シリコーン（Ｂ）の種類及び比率、並びに脂肪酸、有機スルホン酸、有機サルフェート、又はポリオキシアルキレンアルキルリン酸エステル（Ｃ）の種類及び比率をそれぞれ表３の「エーテルエステル化合物」欄、「ポリエーテル変性シリコーン」及び「＊１」欄に示す。なお、「比率」欄の数値は、（Ａ）～（Ｃ）成分の含有量の合計を１００質量部とした場合の各成分の比率（質量部）を示す。 Types and ratios of the ether ester compound (A) used in Examples 1 to 37 and Comparative Examples 1 to 8, types and ratios of the polyether modified silicone (B), and fatty acid, organic sulfonic acid, organic sulfate, or polyoxy. The type and ratio of the alkylene alkyl phosphate (C) are shown in Table 3, "Ether ester compound" column, "Polyether-modified silicone" and "*1" column, respectively. The numerical value in the "ratio" column indicates the ratio (parts by mass) of each component when the total content of the components (A) to (C) is 100 parts by mass.
Figure JPOXMLDOC01-appb-T000006
 　表３において、Ｃ－１はラウリン酸、Ｃ－２はオレイン酸、Ｃ－３はドデシルスルホン酸ナトリウム、Ｃ－４はジオクチルスルホコハク酸ナトリウム、Ｃ－５はドデシル硫酸ナトリウム、Ｃ－６はポリオキシエチレン（１０モル）オクチルリン酸エステルカリウム塩、Ｃ－７はポリオキシエチレン（２モル）ポリオキシプロピレン（６モル）ドデシルリン酸エステルカリウム塩、を示す。
Figure JPOXMLDOC01-appb-T000006
 In Table 3, C-1 is lauric acid, C-2 is oleic acid, C-3 is sodium dodecyl sulfonate, C-4 is sodium dioctylsulfosuccinate, C-5 is sodium dodecyl sulfate, and C-6 is polyoxy. Ethylene (10 mol) octyl phosphate potassium salt, C-7 is polyoxyethylene (2 mol) polyoxypropylene (6 mol) dodecyl phosphate potassium salt.
　＜試験区分３＞
　・ポリオレフィン系合成繊維へのポリオレフィン系不織布用処理剤の付着
　調製した処理剤の水性液を硬水で希釈して０．２５％の濃度の水性液とした。かかる水性液を用いて処理浴（浴温２５℃）を準備し、この処理浴に、ポリプロピレンスパンボンド不織布（目付け２０ｇ／ｍ２）を５分間浸漬して取り出し、ポリプロピレンスパンボンド不織布２ｇに対して水溶液の付着量が４ｇとなるようにマングルにて絞り率を調整して絞った。その後、８０℃×３０分間送風乾燥して下記評価用の処理不織布とした。処理剤の付着量はポリプロピレンスパンボンド不織布１ｇに対して０．５％とした。尚、処理不織布における処理剤の付着量は、該処理不織布をソックスレー抽出機を用いてメタノール／キシレン（５０／５０容量比）混合溶剤で抽出することにより測定した。以下で説明する各項目に関する評価の結果を表３中の「評価結果」欄にまとめて示す。 <Test category 3>
-Adhesion of polyolefin-based non-woven fabric treatment agent to polyolefin-based synthetic fiber An aqueous solution of the prepared treatment agent was diluted with hard water to obtain an aqueous solution having a concentration of 0.25%. A treatment bath (bath temperature 25° C.) was prepared using such an aqueous liquid, and a polypropylene spunbonded nonwoven fabric (weight per unit area of 20 g/m 2 ) was immersed in the treatment bath for 5 minutes to be taken out. The squeezing ratio was adjusted with a mangle so that the amount of the aqueous solution deposited was 4 g. Then, it was blow-dried at 80° C. for 30 minutes to obtain a treated nonwoven fabric for evaluation below. The amount of the treatment agent attached was 0.5% with respect to 1 g of the polypropylene spunbonded nonwoven fabric. The amount of the treatment agent adhering to the treated nonwoven fabric was measured by extracting the treated nonwoven fabric with a Soxhlet extractor using a mixed solvent of methanol/xylene (50/50 volume ratio). The results of the evaluation regarding each item described below are collectively shown in the "Evaluation result" column in Table 3.
　＜試験区分４（ポリオレフィン系不織布用処理剤の評価）＞
　・安定性評価
　上記各例のポリオレフィン系不織布用処理剤をイオン交換水を用いて希釈し、不揮発分の濃度が１．０％の水性液（エマルション）を調製し、安定性（乳化安定性）の評価に用いた。２０℃、６０％ＲＨの恒温室内にて２４時間温調した後、各水性液の外観を目視し、以下の基準により評価した。 <Test Category 4 (evaluation of polyolefin-based nonwoven fabric treating agent)>
-Stability evaluation Stability (emulsion stability) was obtained by diluting the polyolefin-based nonwoven fabric treating agent of each of the above examples with ion-exchanged water to prepare an aqueous liquid (emulsion) having a nonvolatile content of 1.0%. Was used for evaluation. After controlling the temperature in a thermostatic chamber at 20° C. and 60% RH for 24 hours, the appearance of each aqueous liquid was visually observed and evaluated according to the following criteria.
　◎（優）：分離なし。○（良）：分散している状態、すなわちほぼ分離なし。×（不良）：分離あり。 ◎ (Excellent): No separation. ◯ (Good): A dispersed state, that is, almost no separation. X (Poor): Separation is present.
　・硬水安定性
　純水１Ｌに対し、炭酸カルシウム３００ｍｇを溶解させ、硬度３００の硬水を調製した。これに上記各例のポリオレフィン系不織布用処理剤（不揮発分）を加えて、１０％の硬水の水性液を得た。かかる水性液をさらに硬水を用いて希釈し、不揮発分の濃度が１．０％の水性液を調製し安定性評価に用いた。比較対照としてイオン交換水で不揮発分濃度が１％の水性液も調製した。 -Stability in hard water 300 mg of calcium carbonate was dissolved in 1 L of pure water to prepare hard water having a hardness of 300. The treatment agent (nonvolatile content) for the polyolefin-based nonwoven fabric of each of the above examples was added to this to obtain an aqueous liquid of 10% hard water. The aqueous solution was further diluted with hard water to prepare an aqueous solution having a nonvolatile content of 1.0%, which was used for stability evaluation. As a comparative control, an aqueous solution having a non-volatile content of 1% was prepared with ion-exchanged water.
　調製後６時間の溶液の状態について、イオン交換水で調製した場合と比較して、外観の差の有無を確認し、各々以下の基準で評価した。 Regarding the state of the solution 6 hours after the preparation, whether or not there is a difference in appearance was confirmed as compared with the case where it was prepared with ion-exchanged water, and each was evaluated according to the following criteria.
　◎（優）：イオン交換水で調製した場合と比べて外観の差がない。○（良）：イオン交換水で調製した場合と比べて外観の差は若干あるが、沈殿は見られない。×（不良）：硬水で調製した溶液に沈殿が見られる。 ◎ (excellent): There is no difference in appearance compared to when prepared with ion-exchanged water. ◯ (Good): There is a slight difference in appearance compared to the case of preparing with ion-exchanged water, but no precipitation is seen. X (Poor): Precipitation is observed in the solution prepared with hard water.
　・不織布浸透性の評価
　処理剤の付与されていない不織布を２０℃で相対湿度６０％の恒温室内にて２４時間温調した。その後、不織布上に各処理剤の１％エマルション（水性液）を５μＬ滴下し、完全に浸透するまでの時間を記録した。 -Evaluation of non-woven fabric permeability The non-woven fabric to which the treating agent was not applied was subjected to temperature control for 24 hours in a thermostatic chamber at 20°C and 60% relative humidity. Thereafter, 5 μL of a 1% emulsion (aqueous liquid) of each treating agent was dropped onto the nonwoven fabric, and the time until complete penetration was recorded.
　・不織布浸透性の評価基準
◎（優）：１０秒未満で浸透。○（良）：１０秒以上且つ６０秒未満で浸透。×（不良）：６０秒以上で浸透。 Evaluation criteria for non-woven fabric permeability ◎ (excellent): Penetrate in less than 10 seconds. Good (Good): Penetration in 10 seconds or more and less than 60 seconds. Poor (poor): Penetration in 60 seconds or more.
　・初期親水性（４５°傾斜流長法）
　評価用の処理不織布を１０ｃｍ×１５ｃｍの小片に裁断し、２０℃で相対湿度６０％の恒温室内にて２４時間温調した。トイレットペーパーを１０枚重ねて吸収体とし、その上に評価用の処理不織布を配置した。４５°傾斜板上に評価用の処理不織布とトイレットペーパーを設置し、不織布の上方１ｃｍの高さより３７℃の生理食塩水０．０５ｇを滴下した。 ・Initial hydrophilicity (45° inclined flow length method)
The treated non-woven fabric for evaluation was cut into small pieces of 10 cm×15 cm, and the temperature was adjusted for 24 hours in a thermostatic chamber at 20° C. and a relative humidity of 60%. Ten sheets of toilet paper were stacked to form an absorber, and the treated non-woven fabric for evaluation was placed thereon. A treated non-woven fabric for evaluation and toilet paper were placed on a 45° inclined plate, and 0.05 g of physiological saline at 37° C. was dropped from a height of 1 cm above the non-woven fabric.
　評価用の処理不織布一枚に対して、滴下点から吸収終了までの流長（すなわち、不織布上に滴下した生理食塩水が不織布に吸収されるまでの間に不織布表面を流れた距離）を５回測定し、その平均値に基づいて以下の評価基準で初期親水性を評価した。 The flow length from the dropping point to the end of absorption (that is, the distance that the physiological saline solution dropped on the nonwoven fabric flows on the nonwoven fabric surface before being absorbed by the nonwoven fabric) is 5 for one treated nonwoven fabric for evaluation. The initial hydrophilicity was evaluated according to the following evaluation criteria based on the average value measured once.
　・初期親水性の評価基準
◎（優）：流長３０ｍｍ未満。○（良）：流長３０ｍｍ以上且つ５０ｍｍ未満。×（不良）：流長５０ｍｍ以上。 -Evaluation criteria for initial hydrophilicity A (excellent): Flow length less than 30 mm. Good (good): Flow length is 30 mm or more and less than 50 mm. X (poor): Flow length of 50 mm or more.
　・耐久親水性（繰り返し２０滴法）の評価
　評価用の処理不織布を１０ｃｍ×２５ｃｍの小片に裁断し、２０℃で相対湿度６０％の恒温室内にて２４時間温調した。トイレットペーパーを１０枚重ねて吸収体とし、その上に評価用の処理不織布をセットし、さらに不織布の上に、直径２ｃｍの穴を等間隔に開けた４１４ｇのステンレス板を置いた。不織布の上方１ｃｍの高さより３７℃の生理食塩水０．０５ｇを滴下した。同一の不織布に対して２０か所で生理食塩水を滴下し、不織布の上に置かれたステンレス板の穴のうち、滴下した生理食塩水が１０秒以内に不織布に吸収された部分の穴の数を数えた。その後、３分経過のたびに同様の測定を繰り返し、５回目の測定結果に基づいて以下の評価基準で耐久親水性を評価した。 -Evaluation of durable hydrophilicity (repeated 20-drop method) The treated non-woven fabric for evaluation was cut into small pieces of 10 cm x 25 cm, and the temperature was adjusted for 24 hours in a thermostatic chamber at 20°C and 60% relative humidity. Ten sheets of toilet paper were stacked on each other to form an absorbent body, a treated non-woven fabric for evaluation was set on the absorbent body, and a 414-g stainless plate having holes with a diameter of 2 cm formed at equal intervals was placed on the non-woven fabric. From the height of 1 cm above the nonwoven fabric, 0.05 g of physiological saline at 37° C. was dropped. Saline is dropped at 20 points on the same non-woven fabric, and among the holes of the stainless steel plate placed on the non-woven fabric, the portion of the hole where the dropped saline is absorbed by the non-woven fabric within 10 seconds I counted the number. After that, the same measurement was repeated every 3 minutes, and the durable hydrophilicity was evaluated based on the measurement result of the 5th time according to the following evaluation criteria.
　・耐久親水性の評価基準
◎（優）：不織布上のステンレス板の穴のうち、滴下した生理食塩水が１０秒以内に不織布に吸収された部分の穴の数が１８個以上。○（良）：１２個以上且つ１８個未満。×（不良）：１２個未満。 -Evaluation criteria for durable hydrophilicity ⊚ (excellent): Out of the holes of the stainless steel plate on the nonwoven fabric, the number of holes in the portion where the dropped physiological saline solution was absorbed by the nonwoven fabric was 18 or more. Good (good): 12 or more and less than 18 X (defective): less than 12 pieces.
　表３の結果からも明らかなように、本発明によれば、ポリオレフィン系繊維に優れた初期親水性及び耐久親水性を付与でき、かつ不織布浸透性が良好である。また、優れた乳化安定性及び硬水安定性を有するという効果があることが確認された。 As is clear from the results shown in Table 3, according to the present invention, excellent initial hydrophilicity and durable hydrophilicity can be imparted to the polyolefin fiber, and the permeability of the nonwoven fabric is good. In addition, it was confirmed that there is an effect of having excellent emulsion stability and hard water stability.

Claims (7)

  1. 　下記のエーテルエステル化合物及び下記のポリエーテル変性シリコーンを含有することを特徴とするポリオレフィン系不織布用処理剤。
    　エーテルエステル化合物：多価アルコールと一価脂肪酸Ｘとのエステル化合物に対し炭素数２～４のアルキレンオキサイドを付加させた化合物と、一価脂肪酸Ｙとを縮合して得られるエーテルエステル化合物。
    　ポリエーテル変性シリコーン：質量平均分子量が１，０００～１００，０００であるポリエーテル変性シリコーン。     A treatment agent for a polyolefin-based non-woven fabric, comprising the following ether ester compound and the following polyether-modified silicone.
    Ether ester compound: An ether ester compound obtained by condensing a compound obtained by adding an alkylene oxide having 2 to 4 carbon atoms to an ester compound of a polyhydric alcohol and a monovalent fatty acid X and a monovalent fatty acid Y.
    Polyether-modified silicone: A polyether-modified silicone having a weight average molecular weight of 1,000 to 100,000.
  2. 　前記エーテルエステル化合物が、炭素数２～６の２～４価のアルコールと炭素数１０～２６の一価脂肪酸Ｘとのエステル化合物１モルに対し炭素数２～４のアルキレンオキサイドを１～１００モルの割合で付加させた化合物１モルと、炭素数６～２６の一価脂肪酸Ｙ２～３モルとを縮合させたエーテルエステル化合物である請求項１に記載のポリオレフィン系不織布用処理剤。 The ether ester compound is 1 to 100 moles of an alkylene oxide having 2 to 4 carbon atoms per 1 mole of an ester compound of a divalent to tetravalent alcohol having 2 to 6 carbon atoms and a monovalent fatty acid X having 10 to 26 carbon atoms. The treatment agent for a polyolefin non-woven fabric according to claim 1, which is an ether ester compound obtained by condensing 1 mol of the compound added at a ratio of 2 to 3 mol of a monovalent fatty acid Y having 6 to 26 carbon atoms.
  3. 　前記ポリエーテル変性シリコーンは、質量平均分子量が３，０００～５０，０００のものである請求項１又は２に記載のポリオレフィン系不織布用処理剤。 The treatment agent for a polyolefin-based nonwoven fabric according to claim 1 or 2, wherein the polyether-modified silicone has a mass average molecular weight of 3,000 to 50,000.
  4. 　前記エーテルエステル化合物及び前記ポリエーテル変性シリコーンの含有割合の合計を１００質量部とすると、前記エーテルエステル化合物を３０～９９質量部及び前記ポリエーテル変性シリコーンを１～７０質量部の割合で含有する請求項１～３のいずれか一項に記載のポリオレフィン系不織布用処理剤。 When the total content of the ether ester compound and the polyether modified silicone is 100 parts by mass, the ether ester compound is contained in an amount of 30 to 99 parts by mass and the polyether modified silicone in an amount of 1 to 70 parts by mass. Item 5. The treatment agent for polyolefin non-woven fabric according to any one of Items 1 to 3.
  5. 　更に、脂肪酸、有機スルホン酸、有機サルフェート、ポリオキシアルキレンアルキルリン酸エステル、及びこれらの塩から選ばれる少なくとも一つを含有する請求項１～４のいずれか一項に記載のポリオレフィン系不織布用処理剤。 The treatment for a polyolefin-based nonwoven fabric according to any one of claims 1 to 4, further containing at least one selected from fatty acids, organic sulfonic acids, organic sulfates, polyoxyalkylene alkyl phosphates, and salts thereof. Agent.
  6. 　前記エーテルエステル化合物、前記ポリエーテル変性シリコーン、並びに前記脂肪酸、前記有機スルホン酸、前記有機サルフェート、前記ポリオキシアルキレンアルキルリン酸エステル、及びこれらの塩から選ばれる少なくとも一つの含有割合の合計を１００質量部とすると、前記エーテルエステル化合物を４０～８９．９９質量部、前記ポリエーテル変性シリコーンを１０～５０質量部、並びに前記脂肪酸、前記有機スルホン酸、前記有機サルフェート、前記ポリオキシアルキレンアルキルリン酸エステル、及びこれらの塩から選ばれる少なくとも一つを０．０１～１０質量部の割合で含有する請求項５に記載のポリオレフィン系不織布用処理剤。 The total amount of at least one selected from the ether ester compound, the polyether modified silicone, and the fatty acid, the organic sulfonic acid, the organic sulfate, the polyoxyalkylene alkyl phosphate ester, and salts thereof is 100 mass. Parts, the ether ester compound is 40 to 89.99 parts by mass, the polyether modified silicone is 10 to 50 parts by mass, and the fatty acid, the organic sulfonic acid, the organic sulfate, and the polyoxyalkylene alkyl phosphate ester. And at least one selected from these salts in a proportion of 0.01 to 10 parts by mass.
  7. 　請求項１～６のいずれか一項に記載のポリオレフィン系不織布用処理剤が付着していることを特徴とするポリオレフィン系不織布。 A polyolefin-based non-woven fabric to which the treatment agent for polyolefin-based non-woven fabric according to any one of claims 1 to 6 is attached.
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