CN111742097B - Treating agent for polyolefin nonwoven fabric and polyolefin nonwoven fabric - Google Patents
Treating agent for polyolefin nonwoven fabric and polyolefin nonwoven fabric Download PDFInfo
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- CN111742097B CN111742097B CN202080001623.4A CN202080001623A CN111742097B CN 111742097 B CN111742097 B CN 111742097B CN 202080001623 A CN202080001623 A CN 202080001623A CN 111742097 B CN111742097 B CN 111742097B
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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
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- 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
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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
- D06M13/184—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
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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
- D06M13/244—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
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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
- D06M13/244—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
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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
- 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
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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
- 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
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- 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
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- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
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- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The treating agent for polyolefin nonwoven fabric of the present invention is characterized by containing the following ether ester compound and the following polyether-modified silicone. The ether ester compound is obtained by adding an alkylene oxide having 2-4 carbon atoms to an ester compound of a polyhydric alcohol and a monobasic fatty acid X and condensing the resulting compound with a monobasic fatty acid Y. The polyether modified silicone is polyether modified silicone with the mass average molecular weight of 1,000-100,000.
Description
Technical Field
The present invention relates to a treating agent for polyolefin nonwoven fabrics, which is excellent in hard water stability, nonwoven fabric permeability during polyolefin nonwoven fabric treatment, and durable hydrophilicity in polyolefin nonwoven fabrics subjected to hydrophilization treatment. The present invention further relates to a polyolefin nonwoven fabric to which the treatment agent for polyolefin nonwoven fabric is attached.
Background
In general, as a sanitary product such as a disposable diaper, a product in which the surface of a high-absorbency polymer is covered with a nonwoven fabric containing polyolefin synthetic fibers in order to absorb body fluid is known. Nonwoven fabrics covering the surface of highly absorbent polymers are particularly required to have initial hydrophilicity for rapidly absorbing body fluids, durable hydrophilicity for rapidly and repeatedly absorbing body fluids, and the like. Therefore, a treatment agent for polyolefin nonwoven fabric containing a surfactant or the like may be applied to the surface of the polyolefin synthetic fiber to meet the demand.
Heretofore, treatment agents for nonwoven fabrics disclosed in patent documents 1 to 4 have been known. Patent document 1 discloses a structure of a fiber treatment agent for a water-absorbent article, which contains a fatty acid (the fatty acid contains 45 to 95 wt% of oleic acid derived from a natural oil or fat), a polyoxyalkylene adduct of a natural oil or fat, and a fatty acid ester of the polyoxyalkylene adduct of a natural oil or fat.
Patent document 2 discloses a polyolefin 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 discloses a configuration of a long-fiber nonwoven fabric formed of thermoplastic fibers to which a fiber treatment agent containing a polyorganosiloxane such as polydimethylsiloxane, a phosphate-type anionic surfactant, and a surfactant such as a polyoxyalkylene-modified polyol fatty acid ester is attached.
Patent document 4 discloses a fiber treatment agent comprising an anionic surfactant and an ester obtained by capping at least 1 hydroxyl group of a condensate of a polyoxyalkylene group-containing hydroxy fatty acid polyol ester and a dicarboxylic acid or a dicarboxylic acid derivative with a fatty acid.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2018-35458
Patent document 2: japanese patent No. 3362348
Patent document 3: japanese patent No. 6360399
Patent document 4: international publication No. 2016/002476
Disclosure of Invention
Problems to be solved by the invention
However, conventional treatment agents cannot sufficiently achieve all of the various functions such as hard water stability in the case of using hard water as a solvent, nonwoven fabric permeability in the case of treating polyolefin nonwoven fabrics, and durable hydrophilicity required for hydrophilized polyolefin nonwoven fabrics.
The invention aims to provide a treating agent for polyolefin nonwoven fabric, which has good hard water stability, nonwoven fabric permeability, durability and hydrophilicity, and polyolefin nonwoven fabric.
Means for solving the problems
The present inventors have conducted studies to solve the above problems, and as a result, have found that a polyolefin-based treating agent for nonwoven fabric, which is a combination of a specific ether ester compound and a specific polyether-modified silicone, is suitable.
In order to achieve the above object, one embodiment of the present invention provides a polyolefin-based treating agent for nonwoven fabric, which is characterized by containing the following ether ester compound and the following polyether-modified silicone. The ether ester compound is obtained by adding an alkylene oxide having 2-4 carbon atoms to an ester compound of a polyhydric alcohol and a monobasic fatty acid X and condensing the resulting compound with a monobasic fatty acid Y. The polyether modified silicone is polyether modified silicone with the mass average molecular weight of 1,000-100,000.
The ether ester compound is preferably an ether ester compound obtained by adding an alkylene oxide having 2 to 4 carbon atoms to 1 to 100 moles of an ester compound of a 2 to 4-membered alcohol having 2 to 6 carbon atoms and a monohydric fatty acid X having 10 to 26 carbon atoms and condensing a monohydric fatty acid Y having 6 to 26 carbon atoms in a ratio of 2 to 3 moles of the ester compound to 1 mole of the obtained compound.
The polyether-modified silicone preferably has a mass average molecular weight of 3,000 to 50,000.
In the treating agent for polyolefin nonwoven fabric, it is preferable that the ether ester compound is contained in an amount of 30 to 99 parts by mass and the polyether-modified silicone is contained in an amount of 1 to 70 parts by mass, assuming that the total content of the ether ester compound and the polyether-modified silicone is 100 parts by mass.
The polyolefin-based treating agent for nonwoven fabric preferably further contains at least one selected from the group consisting of fatty acids, Organic sulfonic acids, Organic sulfuric acids (Organic sulfates), polyoxyalkylene alkyl phosphates, and salts thereof.
In the treating agent for polyolefin-based nonwoven fabric, it is preferable that the ether ester compound, the polyether-modified silicone, and at least one selected from the group consisting of the fatty acid, the organic sulfonic acid, the organic sulfuric acid, the polyoxyalkylene alkyl phosphate, and salts thereof are contained in a total amount of 100 parts by mass, the ether ester compound is contained in an amount of 40 to 89.99 parts by mass, the polyether-modified silicone is contained in an amount of 10 to 50 parts by mass, and at least one selected from the group consisting of the fatty acid, the organic sulfonic acid, the organic sulfuric acid, the polyoxyalkylene alkyl phosphate, and salts thereof is contained in an amount of 0.01 to 10 parts by mass.
In another aspect of the present invention, there is provided a polyolefin nonwoven fabric to which the treating agent for polyolefin nonwoven fabric is attached.
ADVANTAGEOUS EFFECTS OF INVENTION
According to the present invention, hard water stability, non-woven fabric permeability and durable hydrophilicity can be improved.
Detailed Description
(embodiment 1)
Next, embodiment 1 of a polyolefin nonwoven fabric treatment agent (hereinafter referred to as a treatment agent) embodying the present invention will be described. The treating agent of the present embodiment contains the ether ester compound described below and the polyether-modified silicone described below. The ether ester compound is obtained by adding an alkylene oxide having 2-4 carbon atoms to an ester compound of a polyhydric alcohol and a monobasic fatty acid X and condensing the resulting compound with a monobasic fatty acid Y.
Specific examples of the polyhydric alcohol constituting the ether ester compound used in the treating agent of the present embodiment include ethylene glycol, propylene glycol, 1, 3-propanediol, 1, 2-butanediol, 1, 3-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, 3-propanediol, trimethylolpropane, sorbitan, sorbitol anhydride, and the like, Pentaerythritol, sorbitol, and the like.
The monobasic 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, and may have a hydroxyl group. Specific examples thereof include valeric acid, caproic acid, caprylic acid, 2-ethylhexanoic acid (caprylic acid), capric acid, lauric acid, tridecanoic acid, isotridecanoic acid, palmitic acid, stearic acid (stearic acid), isostearic acid (isostearic acid), hydroxyoctadecanoic acid, 12-hydroxyoctadecanoic acid (12-hydroxystearic acid), octadecenoic acid, hydroxyoctadecenoic acid, octadecadienoic acid, octadecatrienoic acid, docosanoic acid (behenic acid), lignoceric acid, hexacosanoic acid, octacosanoic acid, ricinoleic acid, and oleic acid. Specific examples of the monobasic fatty acid Y constituting the ether ester compound used in the treating agent of the present embodiment can be applied to the above-mentioned specific examples of the monobasic fatty acid X.
Specific examples of the alkylene oxide having 2 to 4 carbon atoms constituting the ether ester compound used in the treating agent of the present embodiment include ethylene oxide, propylene oxide, and the like. The number of moles of alkylene oxide added is not particularly limited, and it is preferably 1 to 100 moles. By limiting the range of the numerical value, the effect of the present invention can be further improved. In addition, the initial hydrophilicity of the polyolefin nonwoven fabric subjected to the hydrophilization treatment with the treatment agent can be improved.
The ether ester compound used in the treatment agent of the present embodiment is preferably a compound obtained by adding an alkylene oxide having 2 to 4 carbon atoms to an ester compound of 1 mole of a 2 to 4-membered alcohol having 2 to 6 carbon atoms and a monohydric fatty acid X having 10 to 26 carbon atoms in a proportion of 1 to 100 moles, and condensing a monohydric fatty acid Y having 6 to 26 carbon atoms in a proportion of 2 to 3 moles with respect to 1 mole of the obtained compound. With this configuration, the effect of the present invention can be further improved. In particular, the durable hydrophilicity of the polyolefin nonwoven fabric hydrophilized with the treatment agent can be improved.
Specific examples of the ether ester compound used in the treatment agent of the present embodiment include, for example, a condensate of polyoxyethylene hydrogenated castor oil and oleic acid, a condensate of polyoxyethylene hydrogenated castor oil and lauric acid, a condensate of polyoxyethylene hydrogenated castor oil and stearic acid, a condensate of polyoxyethylene hydrogenated castor oil and behenic acid, a condensate of polyoxyethylene hydrogenated castor oil and octacosanoic acid, a condensate of polyoxyethylene and polyoxypropylene hydrogenated castor oil and stearic acid, a condensate of polyoxyethylene and polyoxypropylene hydrogenated castor oil and lauric acid, a condensate of polyoxyethylene and polyoxypropylene hydrogenated castor oil and caprylic acid, a condensate of polyoxyethylene and polyoxypropylene hydrogenated castor oil and oleic acid, a condensate of polyoxyethylene and polyoxypropylene hydrogenated castor oil and valeric acid, a condensate of an ester of glycerin and 12-hydroxystearic acid, an oleic acid, a condensate of an ester of glycerin and 12-hydroxystearic acid, a condensate of a polyoxyethylene adduct of glycerin and oleic acid, a condensate of a polyoxyethylene adduct of a fatty acid, a polyoxyethylene-based on a fatty acid, and a fatty acid based on a fatty 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 glycerin and stearic acid and lauric acid, a condensate of a polyoxyethylene adduct of glycerin and tetracosanic acid and lauric acid, a condensate of a polyoxyethylene adduct of glycerin and octacosanoic acid, oleic acid, a condensate of an polyoxyethylene adduct of ethylene glycol and 12-hydroxystearic acid, oleic acid, a condensate of a polyoxyethylene adduct of trimethylolpropane and 12-hydroxystearic acid, oleic acid, a condensate of a polyoxyethylene adduct of sorbitan and 12-hydroxystearic acid, lauric acid, a condensate of a polyoxyethylene adduct of sorbitan and 12-hydroxystearic acid, oleic acid, a condensate of a polyoxyethylene adduct of glycerol and 12-hydroxystearic acid, a condensate of a polyoxyethylene adduct of glycerol and an ester, A condensate of oleic acid and a polyoxyethylene adduct of an ester of sorbitan with valeric acid, a condensate of lauric acid and a polyoxyethylene and polyoxypropylene adduct of an ester of sorbitol with lauric acid, and the like. The hydrogenated castor oil has a structure in which a fatty acid containing about 87 mass% of 12-hydroxystearic acid and about 13 mass% of stearic acid forms an ester bond with glycerin (a 3-membered alcohol having 3 carbon atoms). The ether ester compound may be used alone in 1 kind, or may be used in combination in 2 or more kinds.
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 limiting the range, the effect of the present invention, particularly the nonwoven fabric permeability, can be further improved. The mass average molecular weight can be determined by gel permeation chromatography (hereinafter referred to as GPC) measurement in terms of polystyrene.
The structure other than the mass 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, alkyl polyether-modified silicone in which both a polyether group and an alkyl group are introduced into a side chain or an end, a side chain-type polyether-modified silicone in which a polyether chain end portion is capped with an aliphatic compound or a fatty acid compound, and a both-end type polyether-modified silicone in which a polyether chain end portion is capped with an aliphatic compound or a fatty acid compound. These components can be used alone in 1, also can be combined with more than 2.
The polyether-modified silicone used in the treatment agent of the present embodiment preferably has a structure of the following chemical formula (1), for example.
[ solution 1]
In 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). X, Y can be repeated by either block or random methods. a. b represents an integer of 1 or more.
[ solution 2]
In the chemical formula (2), R1Represents a hydrogen atom, a carbon atom number of 1 ℃20 alkyl or alkenyl having 2 to 20 carbon atoms.
[ solution 3]
In the formula (3), R2Represents an alkylene group having 3 to 6 carbon atoms. R3Represents 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. d represents an integer of 1 to 200 (wherein c ≧ 0 and d ≧ 0).
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. When the total content of the ether ester compound and the polyether-modified silicone is 100 parts by mass, the treating agent preferably contains the ether ester compound 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. By limiting the range to this range, the effects of the present invention, particularly durable hydrophilicity, can be further improved.
The treating agent of the present embodiment preferably further contains at least one selected from the group consisting of fatty acids, organic sulfonic acids, organic sulfuric acids, polyoxyalkylene alkyl phosphates, and salts thereof. These components can be used alone in 1, also can be combined with more than 2. This structure can further improve the emulsion stability of the emulsion.
The fatty acid may be a saturated fatty acid or an unsaturated fatty acid, and may be linear or branched, and may have a hydroxyl group. Specific examples thereof include valeric acid, caproic acid, caprylic acid, 2-ethylhexanoic acid (caprylic acid), capric acid, lauric acid, tridecanoic acid, isotridecanoic acid, palmitic acid, stearic acid (stearic acid), isostearic acid (isostearic acid), hydroxyoctadecanoic acid, 12-hydroxyoctadecanoic acid (12-hydroxystearic acid), octadecenoic acid, hydroxyoctadecenoic acid, octadecadienoic acid, octadecatrienoic acid, docosanoic acid (behenic acid), lignoceric acid, hexacosanoic acid, octacosanoic acid, ricinoleic acid, and oleic acid. Examples of the salt of the fatty acid include alkali metal salts, more specifically, sodium salts and potassium salts of these fatty acids.
Specific examples of the organic sulfonic acid include heptyl sulfonic acid, 2-ethylhexyl sulfonic acid, octyl sulfonic acid, nonyl sulfonic acid, decyl sulfonic acid, undecyl sulfonic acid, dodecyl sulfonic acid, tridecyl sulfonic acid, decyl benzenesulfonic acid, undecyl benzenesulfonic acid, dodecyl benzenesulfonic acid, tridecyl benzenesulfonic acid, tetradecyl benzenesulfonic acid, pentadecyl benzenesulfonic acid, hexadecyl diphenyl ether disulfonic acid, di-2-ethylhexyl sulfosuccinate, dioctyl sulfosuccinic acid, didodecyl sulfosuccinate, and dihexadecyl sulfosuccinate. Examples of the salt of the organic sulfonic acid include alkali metal salts, more specifically, sodium salts and potassium salts of the organic sulfonic acid.
Specific examples of the organic sulfuric acid include 4-methylpentylsulfuric acid, octylsulfuric acid, 2-ethylhexylsulfuric acid, isononylsulfuric acid, decylsulfuric acid, 1-methylnonylsulfuric acid, isodecylsulfuric acid, dodecylsulfuric acid, 2-butyloctylsulfuric acid, tetradecylsulfuric acid, pentadecylsulfuric acid, hexadecylsulfuric acid, heptadecylsulfuric acid, 3, 9-diethyltridecan-6-ylsulfuric acid, octadecylsulfuric acid, polyoxyethylene dodecylsulfuric acid, polyoxyethylene octylphenyl ether sulfuric acid, and polyoxyethylene nonylphenyl ether sulfuric acid. Examples of the salt of the organic sulfuric acid include alkali metal salts, and more specifically, sodium salts and potassium salts of the organic sulfuric acid.
Specific examples of the polyoxyalkylene alkyl phosphate ester include polyoxyethylene (the number of moles of alkylene oxide added (the same applies hereinafter)) octyl ether phosphate, polyoxyethylene (3 moles) isooctyl ether phosphate, polyoxyethylene (3 moles) polyoxypropylene (6 moles) -2-ethylhexyl ether phosphate, polyoxyethylene (2 moles) decyl ether phosphate, polyoxyethylene (2 moles) polyoxypropylene (6 moles) decyl ether phosphate, and polyoxyethylene (2 moles) polyoxypropylene (6 moles) dodecyl ether phosphate. Examples of the salt of a polyoxyalkylene alkyl phosphate ester include alkali metal salts, more specifically, sodium salts and potassium salts of these polyoxyalkylene alkyl phosphate esters. Specific examples of the polyoxyalkylene alkyl phosphate or a salt thereof include a monoester, a diester and a mixture of a monoester and a diester. In addition, a diester body having the same alkyl group (symmetric diester) and a diester body having a different alkyl group (asymmetric diester) are present in the diester body.
The content ratio of the ether ester compound, the polyether-modified silicone, and at least one selected from the fatty acid, the organic sulfonic acid, the organic sulfuric acid, the polyoxyalkylene alkyl phosphate, and salts thereof in the treating agent of the present embodiment is not particularly limited. When the total content ratio of the ether ester compound, the polyether-modified silicone, and at least one selected from the fatty acid, the organosulfonic acid, the organosulfuric acid, the polyoxyalkylene alkyl phosphate, and salts thereof is 100 parts by mass, the treating agent preferably contains the ether ester compound in an amount of 40 to 89.99 parts by mass, the polyether-modified silicone in an amount of 10 to 50 parts by mass, and at least one selected from the fatty acid, the organosulfonic acid, the organosulfuric acid, the polyoxyalkylene alkyl phosphate, and salts thereof in an amount of 0.01 to 10 parts by mass. With this configuration, the configuration of the present invention, particularly the durable hydrophilic property, can be further improved. Further, the initial hydrophilicity of the polyolefin nonwoven fabric hydrophilized with the treatment agent can be improved.
(embodiment 2)
Next, embodiment 2 of a polyolefin nonwoven fabric (hereinafter referred to as nonwoven fabric) embodying the present invention will be described. The nonwoven fabric of the present embodiment is a nonwoven fabric including polyolefin synthetic fibers to which the treatment agent of embodiment 1 is attached.
The polyolefin synthetic fibers are not particularly limited, and examples thereof include polyethylene fibers, polypropylene fibers, and polybutylene fibers. These can be used alone in 1 kind, also can be combined with more than 2 kinds. The core-sheath composite fiber may be a composite fiber in which either or both of the core and sheath are polyolefin fibers, for example, a polyethylene/polypropylene composite fiber in which the sheath is a polyethylene fiber, a polyethylene/polyester composite fiber, or the like. The type of nonwoven fabric is not particularly limited, and examples thereof include spunbond nonwoven fabrics, meltblown nonwoven fabrics, and composite nonwoven fabrics of spunbond and meltblown.
The treatment agent of embodiment 1 is attached to the polyolefin nonwoven fabric so that the treatment agent (including no solvent) of embodiment 1 is preferably 0.05 to 3% by mass, more preferably 0.1 to 1% by mass, relative to the polyolefin nonwoven fabric. The form of the treating agent in the case of adhering the treating agent of embodiment 1 to the synthetic fibers may be, for example, an aqueous liquid. The organic solvent solution may be contained in a small amount within a range not to impair the effects of the present invention.
More specifically, the following treatment methods are preferred: the treating agent of embodiment 1 is first diluted with water, for example, to prepare an aqueous solution having a concentration of 0.5 to 20% by mass, and if necessary, the aqueous solution is further diluted so that the aqueous solution is attached to the polyolefin synthetic fibers in a proportion of 0.05 to 3% by mass based on the treating agent of embodiment 1 containing no solvent. As the adhesion method, a known method such as a dipping method, a spraying method, a roll oil feeding method, an oil guiding and feeding method using a metering pump, or the like can be applied. Further, a spraying method, a roll coater, a gravure coater, a die coater, a curtain coater, or the like may also be used.
According to the treatment agent and the nonwoven fabric of the above embodiment, the following effects can be obtained.
(1) In the above embodiment, the treating agent containing the ether ester compound and the polyether-modified silicone having a predetermined mass average molecular weight is constituted. Therefore, hard water stability in the case of using hard water as a solvent can be improved. Further, the permeability of the nonwoven fabric can be improved in the treatment of the polyolefin nonwoven fabric. In addition, the polyolefin nonwoven fabric subjected to hydrophilization treatment can be imparted with excellent durable hydrophilicity.
(2) In addition, the polyolefin nonwoven fabric subjected to the hydrophilization treatment can be imparted with excellent initial hydrophilicity. In addition, the emulsion stability of the treatment agent can be improved.
The above embodiment may be modified as follows.
In the treatment agent of the above embodiment, a component generally used in the treatment agent, such as a linking agent, an antioxidant, and an ultraviolet absorber, may be further compounded as a stabilizer or a charge control agent for maintaining the quality of the treatment agent, within a range not to impair the effects of the present invention.
[ examples ]
Hereinafter, examples and the like are given to more specifically explain the constitution 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, parts means parts by mass, and% means% by mass.
< test group 1>
Synthesis of Ether ester Compound (A-1)
An appropriate amount of sodium hydroxide as a catalyst was charged into the autoclave per 1 mol of hydrogenated castor oil, and 25 mol of ethylene oxide was introduced thereinto under pressure to effect etherification. Further esterified with 3 moles of oleic acid as a monobasic fatty acid Y to thereby obtain an ether ester compound (A-1).
Ether ester compounds (A-3), (A-4), (A-8) to (A-11), (A-16) to (A-20), (A-22), (A-26), (A-27), (ra-3) and (ra-4) shown in Table 1 were synthesized by the same procedure as for ether ester compound (A-1).
Synthesis of Ether ester Compound (A-2)
1 mol of glycerin as a polyhydric alcohol and 3 mol of 12-hydroxystearic acid as a monobasic fatty acid X were charged into a reaction vessel and esterified. The ester compound was charged into an autoclave, and an appropriate amount of potassium hydroxide was added as a catalyst. 26 moles of ethylene oxide were added under pressure to conduct etherification. Then, the resulting ester was further esterified with 2 moles of oleic acid as a monobasic fatty acid Y to obtain an ether ester compound (A-2).
The ether ester compounds (A-5) to (A-7), (A-12) to (A-15), (A-21), (A-23) to (A-25), (ra-1) and (ra-2) shown in Table 1 were synthesized by the same procedure as the ether ester compound (A-2).
The kind of polyhydric alcohol, the kind and the condensation mole number of the monobasic fatty acid X, the kind and the addition mole number of the alkylene oxide, and the kind and the condensation mole number of the monobasic fatty acid Y, which are raw materials of the ether ester compounds (A-1) to (A-27) and (ra-1) to (ra-4), are shown in Table 1.
[ Table 1]
The kind of the end of the polyether modification group of the polyether-modified silicone used in examples and comparative examples described below, the proportion (Si%) of the silicone of the portion excluding the alkylene oxide from the molecular weight, the molar ratio (%) of Ethylene Oxide (EO) in the alkylene oxide, and the mass average molecular weight are shown in table 2. The molar ratio (%) of EO is calculated as (number of moles of EO/total number of moles of each alkylene oxide) × 100.
[ Table 2]
< test group 2>
Preparation of 10% aqueous solution of polyolefin-based treating agent for nonwoven Fabric (example 1)
27.5g of an ether ester compound (A-1) as a component A, 18.5g of a polyether-modified silicone (B-1) as a component B, and 4.0g of lauric acid (C-1) as a component C were mixed, and 450g of ion-exchanged water was added to obtain a 10% aqueous solution.
Preparation of treating agent for polyolefin nonwoven Fabric (examples 2 to 37 and comparative examples 1 to 8)
A10% aqueous solution of a treating agent for nonwoven fabric (examples 2 to 37 and comparative examples 1 to 8) was prepared by the same procedure as in example 1.
The types and proportions of the ether ester compounds (a), the types and proportions of the polyether-modified silicones (B), and the types and proportions of the fatty acids, organosulfonic acids, organosulfuric acids, or polyoxyalkylene alkyl phosphates (C) used in examples 1 to 37 and comparative examples 1 to 8 are shown in the columns "ether ester compound", "polyether-modified silicone", and "x 1" of table 3, respectively. The numerical value in the column of "ratio" represents the ratio (parts by mass) of each component when the total content of the components (a) to (C) is 100 parts by mass.
[ Table 3]
In Table 3, C-1 represents lauric acid, C-2 represents oleic acid, C-3 represents sodium dodecylsulfonate, C-4 represents sodium dioctylsulfosuccinate, C-5 represents sodium dodecylsulfate, C-6 represents polyoxyethylene (10 mol) octylphosphate potassium salt, and C-7 represents polyoxyethylene (2 mol) polyoxypropylene (6 mol) dodecylphosphate potassium salt.
< test group 3>
Adhesion of treating agent for polyolefin-based nonwoven fabric to polyolefin-based synthetic fiber
The aqueous solution of the treatment agent thus prepared was diluted with hard water to prepare an aqueous solution having a concentration of 0.25%. Using the aqueous liquid, a treatment bath (bath temperature 25 ℃ C.) was prepared, and a polypropylene spunbond nonwoven fabric (basis weight 20 g/m) was formed2) After immersing in this treatment bath for 5 minutes, the resultant was taken out, and the squeezing was carried out by adjusting the squeezing ratio by a squeezing machine so that the amount of the aqueous solution adhering to 2g of the polypropylene spunbond nonwoven fabric was 4 g. Then, the nonwoven fabric was air-dried at 80 ℃ for 30 minutes to prepare a treated nonwoven fabric for evaluation described below. The amount of the treatment agent attached to 1g of the polypropylene spunbonded nonwoven fabric was 0.5%. The amount of the treatment agent deposited on the treated nonwoven fabric was measured by extracting the treated nonwoven fabric with a mixed solvent of methanol and xylene (50/50 volume ratio) using a soxhlet extractor. The results of the evaluation relating to the respective items described below are shown in the column of "evaluation results" in table 3.
< test group 4 (evaluation of treating agent for polyolefin nonwoven Fabric) >
Evaluation of stability
The polyolefin-based nonwoven fabric treatment agents of the above examples were diluted with ion-exchanged water to prepare aqueous solutions (emulsions) having a nonvolatile content concentration of 1.0%, and used for evaluation of stability (emulsion stability). After the temperature was adjusted in a thermostatic chamber at 20 ℃ and 60% RH for 24 hours, the appearance of each aqueous liquid was visually observed and evaluated by the following criteria.
Excellent: there was no separation. O (good): in a dispersed state, i.e., substantially without separation. X (bad): there is a separation.
Stability to hard Water
In 1L of pure water, 300mg of calcium carbonate was dissolved to prepare hard water having a hardness of 300. The polyolefin nonwoven fabric treatment agents (nonvolatile components) of the above examples were added thereto to obtain an aqueous solution of hard water of 10%. This aqueous solution was further diluted with hard water to prepare an aqueous solution having a nonvolatile content of 1.0% for stability evaluation. As a comparative control, an aqueous solution having a nonvolatile content of 1% was also prepared using ion-exchanged water.
The state of the solution 6 hours after the preparation was compared with that prepared using ion-exchanged water, and the presence or absence of a difference in appearance was checked, and evaluated according to the following criteria.
Excellent: there was no difference in appearance as compared with the case of preparation using ion-exchanged water. O (good): the appearance was slightly different from that in the case of the preparation using ion-exchanged water, but no precipitation was observed. X (bad): precipitation was observed in solutions prepared with hard water.
Evaluation of permeability of nonwoven Fabric
The temperature of the nonwoven fabric to which no treatment agent was applied was adjusted in a thermostatic chamber at 20 ℃ and a relative humidity of 60% for 24 hours. Then, 5. mu.L of a 1% emulsion (aqueous solution) of each treatment agent was dropped on the nonwoven fabric, and the time until complete penetration was recorded.
Evaluation criteria for nonwoven Fabric Permeability
Excellent: permeate in less than 10 seconds. O (good): permeate in 10 seconds or more and less than 60 seconds. X (bad): permeate over 60 seconds.
Initial hydrophilicity (45 ℃ inclined flow Length method)
The treated nonwoven fabric for evaluation was cut into 10cm × 15cm pieces, and temperature-controlled in a thermostatic chamber at 20 ℃ and a relative humidity of 60% for 24 hours. 10 sheets of toilet paper were stacked to form an absorbent body, and a treated nonwoven fabric for evaluation was disposed thereon. The treated nonwoven fabric for evaluation and toilet paper were set on a 45 ℃ inclined plate, and 0.05g of physiological saline at 37 ℃ was dropped from a height of 1cm above the nonwoven fabric.
One treated nonwoven fabric for evaluation was measured for 5 times of flow length from the point of dropping to the end of absorption (i.e., the distance that physiological saline dropped on the nonwoven fabric flowed on the surface of the nonwoven fabric until the physiological saline was absorbed by the nonwoven fabric), and the initial hydrophilicity was evaluated based on the average value thereof by the following evaluation criteria.
Evaluation criterion of initial hydrophilicity
Excellent: the flow length is less than 30 mm. O (good): the flow length is 30mm or more and less than 50 mm. X (bad): the flow length is 50mm or more.
Evaluation of durable hydrophilicity (repeated 20-drop method)
The treated nonwoven fabric for evaluation was cut into 10cm × 25cm pieces, and temperature-controlled in a thermostatic chamber at 20 ℃ and a relative humidity of 60% for 24 hours. 10 sheets of toilet paper were stacked as an absorbent body, treated nonwoven fabric for evaluation was placed thereon, and 414g stainless steel plates with holes of 2cm in diameter were further placed on the nonwoven fabric at intervals. 0.05g of physiological saline at 37 ℃ was dropped from a height of 1cm above the nonwoven fabric. Physiological saline was dropped onto the same nonwoven fabric at 20 positions, and the number of holes in the stainless steel sheet placed on the nonwoven fabric, which were filled with the dropped physiological saline, was counted in the portion absorbed by the nonwoven fabric within 10 seconds. After 3 minutes had elapsed, the same measurement was repeated again, and the durable hydrophilicity was evaluated based on the 5 th measurement result by the following evaluation criteria.
Evaluation criteria for durable hydrophilicity
Excellent: the number of holes in the stainless steel sheet on the nonwoven fabric, in which the physiological saline solution dropped therein was absorbed into the nonwoven fabric within 10 seconds, was 18 or more. O (good): more than 12 and less than 18. X (bad): less than 12.
As is clear from the results in table 3, according to the present invention, the initial hydrophilicity and the durable hydrophilicity can be imparted to the polyolefin fibers, and the nonwoven fabric has good permeability. In addition, the effect of excellent emulsion stability and hard water stability was confirmed.
Claims (7)
1. A treating agent for polyolefin nonwoven fabrics, characterized by containing the following ether ester compound and the following polyether-modified silicone,
ether ester compound: an ether ester compound obtained by adding an alkylene oxide having 2 to 4 carbon atoms to an ester compound of a 2 to 4-membered alcohol having 2 to 6 carbon atoms and a monohydric fatty acid X having 10 to 26 carbon atoms and condensing the resulting compound with a monohydric fatty acid Y;
polyether-modified silicone: polyether modified silicone with mass average molecular weight of 1,000-100,000.
2. The treating agent for polyolefin nonwoven fabrics according to claim 1, wherein the ether ester compound is obtained by adding an alkylene oxide having 2 to 4 carbon atoms to 1 mole of an ester compound of a 2 to 4-membered alcohol having 2 to 6 carbon atoms and a monohydric fatty acid X having 10 to 26 carbon atoms in a proportion of 1 to 100 moles and condensing 1 mole of the obtained compound with 2 to 3 moles of a monohydric fatty acid Y having 6 to 26 carbon atoms.
3. The treating agent for polyolefin nonwoven fabrics according to claim 1 or 2, wherein the polyether-modified silicone has a mass average molecular weight of 3,000 to 50,000.
4. The treating agent for polyolefin nonwoven fabrics according to claim 1 or 2, wherein the ether ester compound is contained in an amount of 30 to 99 parts by mass and the polyether-modified silicone is contained in an amount of 1 to 70 parts by mass, based on 100 parts by mass of the total content of the ether ester compound and the polyether-modified silicone.
5. The treating agent for polyolefin-based nonwoven fabric according to claim 1 or 2, wherein the treating agent further contains at least one selected from the group consisting of fatty acids, organic sulfonic acids, organic sulfuric acids, polyoxyalkylene alkyl phosphate esters, and salts thereof.
6. The treating agent for polyolefin-based nonwoven fabrics according to claim 5, wherein the ether ester compound, the polyether-modified silicone, and at least one member selected from the group consisting of the fatty acid, the organosulfonic acid, the organosulfuric acid, the polyoxyalkylene alkyl phosphate, and salts thereof are contained in a proportion of 40 to 89.99 parts by mass, the polyether-modified silicone is contained in a proportion of 10 to 50 parts by mass, and the at least one member selected from the group consisting of the fatty acid, the organosulfonic acid, the organosulfuric acid, the polyoxyalkylene alkyl phosphate, and salts thereof is contained in a proportion of 0.01 to 10 parts by mass, based on 100 parts by mass of the total content of the ether ester compound, the polyether-modified silicone, and the at least one member selected from the group consisting of the fatty acid, the organosulfonic acid, the organosulfuric acid, the polyoxyalkylene alkyl phosphate, and salts thereof.
7. A polyolefin nonwoven fabric to which the treating agent for polyolefin nonwoven fabric according to any one of claims 1 to 6 is attached.
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| JP2019005167A JP6490883B1 (en) | 2019-01-16 | 2019-01-16 | Treatment agent for polyolefin nonwoven fabric and polyolefin nonwoven fabric |
| JP2019-005167 | 2019-01-16 | ||
| PCT/JP2020/000935 WO2020149272A1 (en) | 2019-01-16 | 2020-01-15 | Polyolefin-based nonwoven fabric processing agent and polyolefin-based nonwoven fabric |
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| KR (1) | KR102213774B1 (en) |
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| JPS53137688A (en) * | 1977-05-07 | 1978-12-01 | Mitsubishi Electric Corp | Semiconductor device of mesa type |
| US4313845A (en) * | 1979-11-28 | 1982-02-02 | The United States Of America As Represented By The United States Department Of Energy | System for chemically digesting low level radioactive, solid waste material |
| JPS58139190A (en) | 1982-02-12 | 1983-08-18 | 松下電器産業株式会社 | Keyboard type electronic musical instrument |
| JP3362348B2 (en) | 1996-05-15 | 2003-01-07 | 旭化成株式会社 | Polyolefin nonwoven fabric for sanitary materials |
| JP3314775B2 (en) * | 1999-07-16 | 2002-08-12 | チッソ株式会社 | Durable hydrophilic fiber and fiber molding using the same |
| JP4229411B2 (en) * | 1999-09-16 | 2009-02-25 | 竹本油脂株式会社 | Processing agent and processing method of polyolefin fiber for manufacturing nonwoven fabric by dry method |
| JP2002371466A (en) * | 2001-06-13 | 2002-12-26 | Lion Corp | Composition of antifouling agent and antifouling agent |
| JP4174995B2 (en) * | 2002-02-13 | 2008-11-05 | チッソ株式会社 | Durable hydrophilic composite fiber and fiber molded body using the same |
| JP4691429B2 (en) * | 2005-10-13 | 2011-06-01 | 竹本油脂株式会社 | Synthetic fiber treatment agent and method for manufacturing nonwoven fabric and nonwoven fabric manufacturing fabric |
| JP5650991B2 (en) | 2010-11-09 | 2015-01-07 | 松本油脂製薬株式会社 | Water permeability imparting agent, water permeable fiber to which it is attached, and method for producing nonwoven fabric |
| WO2014148368A1 (en) * | 2013-03-22 | 2014-09-25 | 松本油脂製薬株式会社 | Elastic fiber treating agent and elastic fiber |
| JP6863741B2 (en) | 2014-06-30 | 2021-04-21 | 松本油脂製薬株式会社 | Method for manufacturing fiber treatment agent, water-permeable fiber to which it is attached, and non-woven fabric |
| JP6408320B2 (en) * | 2014-09-19 | 2018-10-17 | 花王株式会社 | Hydrophilic nonwoven fabric and fiber treatment agent for nonwoven fabric |
| JP6244430B2 (en) * | 2015-10-22 | 2017-12-06 | 三洋化成工業株式会社 | Treatment agent for synthetic fibers |
| JP6687484B2 (en) | 2016-08-30 | 2020-04-22 | ユニ・チャーム株式会社 | Fiber treatment agent for absorbent articles, fibers, non-woven fabrics and absorbent articles |
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