WO2016104106A1 - Agent de traitement pour production de non-tissé et son utilisation - Google Patents

Agent de traitement pour production de non-tissé et son utilisation Download PDF

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Publication number
WO2016104106A1
WO2016104106A1 PCT/JP2015/084099 JP2015084099W WO2016104106A1 WO 2016104106 A1 WO2016104106 A1 WO 2016104106A1 JP 2015084099 W JP2015084099 W JP 2015084099W WO 2016104106 A1 WO2016104106 A1 WO 2016104106A1
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WIPO (PCT)
Prior art keywords
nonwoven fabric
fatty acid
fiber
weight
acid ester
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PCT/JP2015/084099
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English (en)
Japanese (ja)
Inventor
英利 北口
節夫 喜多
Original Assignee
松本油脂製薬株式会社
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Priority to JP2016566084A priority Critical patent/JP6720083B2/ja
Publication of WO2016104106A1 publication Critical patent/WO2016104106A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
    • 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
    • D06M13/02—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with hydrocarbons
    • 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

Definitions

  • the present invention relates to a processing agent for manufacturing a nonwoven fabric, a short fiber to which the processing agent adheres, a nonwoven fabric, and a nonwoven fabric manufacturing method.
  • fibers used in the nonwoven fabric there are natural fibers and synthetic fibers. Since natural fibers have oils and fats attached to the fiber surface, a processing agent is rarely required during processing into a nonwoven fabric. On the other hand, since synthetic fibers do not adhere to the fiber surface, treatment agents imparting lubricity, bundling properties, antistatic properties and the like are used depending on the purpose.
  • an antistatic component of the treatment agent used at the time of processing into a nonwoven fabric a fiber treatment agent mainly composed of an anionic surfactant such as an alkyl phosphate potassium salt is generally used (Patent Document 1).
  • the present inventors have found that it varies as follows depending on the processing mode.
  • the short fiber to which the fiber treatment agent mainly composed of an anionic surfactant is attached is used in a production process using water such as spunlace or papermaking, the web in the middle of nonwoven fabric processing is disturbed by foaming of the treatment agent. It was found that the quality of the nonwoven fabric was degraded.
  • processes such as needle punching and chemical bonding, it was found that the quality of the nonwoven fabric deteriorated due to the occurrence of a large amount of fluff due to insufficient entanglement and uneven web did.
  • the problem to be solved by the present invention is a treatment agent for nonwoven fabric production which is excellent in entanglement and scum suppression and has less foaming, short fiber which is excellent in entanglement and scum suppression during nonwoven fabric processing and has little foaming, And providing a non-woven fabric having a good texture.
  • the processing agent for nonwoven fabric manufacture of this invention contains a component (A) and a component (B), and the said component (A) is a mineral oil (A1), monohydric alcohol fatty acid ester (A2), and a polyhydric alcohol fatty acid.
  • At least one selected from esters (A3), and the component (B) is at least one selected from polyoxyalkylene polyhydric alcohol fatty acid ester (B1) and polyalkylene glycol fatty acid ester (B2), It is a processing agent for nonwoven fabric manufacture whose weight ratio of the anionic surfactant to the non volatile matter of an agent is less than 15 weight%.
  • the weight ratio of the anionic surfactant in the nonvolatile content of the treatment agent is less than 8% by weight.
  • the component (B) preferably contains the polyoxyalkylene polyhydric alcohol fatty acid ester (B1).
  • the component (A) preferably contains the mineral oil (A1) and the polyhydric alcohol fatty acid ester (A3).
  • the polyoxyalkylene polyhydric alcohol has a weight ratio of 2 to 50% by weight of the mineral oil (A1) and 2 to 50% by weight of the polyhydric alcohol fatty acid ester (A3) in the nonvolatile content of the treatment agent.
  • the weight ratio of the fatty acid ester (B1) is preferably 40 to 95% by weight.
  • the polyoxyalkylene polyhydric alcohol fatty acid ester (B1) is preferably a polyoxyalkylene sorbitan monoalkylate.
  • the short fiber of the present invention is obtained by applying the above-mentioned processing agent for producing a nonwoven fabric to raw material short fibers.
  • the nonwoven fabric of this invention contains the said short fiber.
  • the manufacturing method of the nonwoven fabric of this invention includes the process of producing the fiber web by accumulating the said short fiber, and processing this fiber web by a spunlace method.
  • the productivity can be improved.
  • the non-woven fabric containing the short fibers has a good formation and is excellent in safety to the human body. If it is a manufacturing method of the nonwoven fabric using the short fiber by which the processing agent for nonwoven fabric manufacture of this invention was processed, productivity can be improved in a nonwoven fabric preparation process.
  • the treatment agent for producing a nonwoven fabric of the present invention contains a specific component (A) and a specific component (B), and the weight ratio of the anionic surfactant is less than a certain amount. This will be described in detail below.
  • the component (A) of the present invention is at least one selected from mineral oil (A1), monohydric alcohol fatty acid ester (A2), and polyhydric alcohol fatty acid ester (A3).
  • Component (A) is excellent in entanglement, low foamability and scum suppression in the nonwoven fabric preparation step by being used in combination with component (B) described below. Since component (A) alone is poor in solubility in water, it is difficult to uniformly attach the treatment agent to the fibers.
  • component (A) contains mineral oil (A1), the liquid properties are strong, so the fiber-to-fiber friction is high and the fiber-to-metal friction is reduced to improve the permeability during nonwoven fabric processing. It is preferable from the viewpoint that the fluff is reduced.
  • the interaction between the hydroxyl group on the surface of the rayon fiber and the ester bond works due to the presence of a plurality of ester bonds in the molecule. It is more preferable because it improves friction between fibers, improves entanglement and reduces fluff.
  • the mineral oil (A1) includes, but is not limited to, machine oil, spindle oil, liquid paraffin, and the like.
  • the viscosity of the mineral oil at 40 ° C. is preferably in the range of 40 to 300 seconds (JISK-2283) with a Redwood viscometer, more preferably 40 to 160 seconds, still more preferably 60 to 120 seconds, and 60 to 100 seconds. Is particularly preferred. If it is less than 40 seconds, the mineral oil may volatilize with the standing time when the fiber after being refueled is left, and if it exceeds 300 seconds, the viscosity is too high and the occurrence of scum during the processing of the nonwoven fabric may increase.
  • the monohydric alcohol fatty acid ester (A2) is a compound having a structure in which a monohydric alcohol and a fatty acid are ester-bonded.
  • a monohydric aliphatic alcohol which comprises the said monohydric alcohol fatty acid ester (A2)
  • a monohydric aliphatic alcohol etc. are mentioned.
  • the carbon number of the monovalent aliphatic alcohol may be distributed. Further, it may be saturated or unsaturated, linear, or branched.
  • the number of carbon atoms of the monovalent aliphatic alcohol is preferably 1 to 30, more preferably 2 to 24, still more preferably 4 to 20, and particularly preferably 8 to 18. If the monohydric aliphatic alcohol has more than 30 carbon atoms, the solidity becomes stronger, and the friction between the fibers decreases, so that the entanglement may decrease and the fluffing at the time of nonwoven processing may increase. There is.
  • the emulsifying properties also deteriorate.
  • the monohydric alcohol include methanol, ethanol, propanol, butanol, pentanol, hexanol, heptanol, octanol, decanol, 2-ethylhexanol, lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, Examples include oleyl alcohol and behenyl alcohol.
  • the fatty acid constituting the monohydric alcohol fatty acid ester (A2) is not particularly limited, and may be linear or branched, saturated or unsaturated, and a hydroxyl group in the side chain of the hydrocarbon group.
  • the carbon number may be distributed.
  • the fatty acid include acetic acid, propionic acid, butanoic acid, pentanoic acid, hexanoic acid, heptanoic acid, octanoic acid, nonanoic acid, decanoic acid, lauric acid, coconut fatty acid, myristic acid, palmitic acid, stearic acid, oleic acid, Examples include behenic acid, ricinoleic acid, linolenic acid, ricineraidic acid, hydroxystearic acid, 12-hydroxystearic acid, cerebronic acid, hydroxylignoceric acid, salicylic acid, and lactic acid. These may be used in combination of two or more.
  • the polyhydric alcohol fatty acid ester (A3) is a compound having a structure in which at least one of the hydroxyl groups of the polyhydric alcohol and an fatty acid are ester-bonded.
  • the polyhydric alcohol constituting the polyhydric alcohol fatty acid ester (A3) is not particularly limited, and examples thereof include divalent to octavalent alcohols, and the like. Divalent to hexavalent alcohols are preferable, and divalent to tetravalent alcohols are preferable. Is more preferable.
  • Examples of such polyhydric alcohols include ethylene glycol, propylene glycol, 1,4-butanediol, 1,6-hexanediol, diethylene glycol, glycerin, trimethylolpropane, sorbitol, sorbitan, pentaerythritol, dipentaerythritol, Sucrose etc. are mentioned.
  • polyglycerin such as diglycerin, triglycerin, tetraglycerin and hexaglycerin, which is a condensate of glycerin, is also included.
  • the fatty acid constituting the polyhydric alcohol fatty acid ester (A3) is not particularly limited, but may be linear or branched, saturated or unsaturated, and contains a hydroxyl group in the side chain of the hydrocarbon group.
  • the carbon number may be distributed.
  • fatty acid examples include acetic acid, propionic acid, butanoic acid, pentanoic acid, hexanoic acid, heptanoic acid, octanoic acid, nonanoic acid, decanoic acid, lauric acid, coconut fatty acid, myristic acid, palmitic acid, stearic acid, oleic acid, Examples include behenic acid, ricinoleic acid, linolenic acid, ricineraidic acid, hydroxystearic acid, 12-hydroxystearic acid, cerebronic acid, hydroxylignoceric acid, salicylic acid, and lactic acid. These may be used in combination of two or more.
  • the polyhydric alcohol fatty acid ester (A3) is not particularly limited.
  • Component (B) of the present invention is at least one selected from polyoxyalkylene polyhydric alcohol fatty acid ester (B1) and polyalkylene glycol fatty acid ester (B2).
  • Component (B) is excellent in entanglement, low foamability and scum suppression in the nonwoven fabric preparation step when used in combination with component (A).
  • the polyoxyalkylene polyhydric alcohol fatty acid ester (B1) is a compound obtained by adding an alkylene oxide such as propylene oxide or ethylene oxide to the polyhydric alcohol fatty acid ester.
  • Examples of the polyhydric alcohol constituting the polyoxyalkylene polyhydric alcohol fatty acid ester (B1) include ethylene glycol, propylene glycol, 1,4-butanediol, 1,6-hexanediol, diethylene glycol, glycerin, trimethylolpropane, Examples include sorbitol, sorbitan, pentaerythritol, dipentaerythritol, and sucrose.
  • polyglycerin such as diglycerin, triglycerin, tetraglycerin, hexaglycerin and the like, which are condensates of glycerin.
  • trivalent or higher alcohols are preferable from the viewpoint of less fluff during nonwoven fabric processing, and preferable examples include glycerin, trimethylolpropane, sorbitol, sorbitan, pentaerythritol, and dipentaerythritol.
  • the fatty acid constituting the polyoxyalkylene polyhydric alcohol fatty acid ester (B1) is not particularly limited and may be linear or branched, saturated or unsaturated, and may be present in the side chain of the hydrocarbon group. It may contain hydroxyl groups and may have a distribution of carbon numbers.
  • fatty acid examples include acetic acid, propionic acid, butanoic acid, pentanoic acid, hexanoic acid, heptanoic acid, octanoic acid, nonanoic acid, decanoic acid, lauric acid, coconut fatty acid, myristic acid, palmitic acid, stearic acid, oleic acid, Examples include behenic acid, ricinoleic acid, linolenic acid, ricineraidic acid, hydroxystearic acid, 12-hydroxystearic acid, cerebronic acid, hydroxylignoceric acid, salicylic acid, and lactic acid. These may be used in combination of two or more.
  • the polyoxyalkylene polyhydric alcohol fatty acid ester (B1) is an ester in which at least one hydroxyl group of the polyhydric alcohol is esterified.
  • alkylene oxide constituting the polyoxyalkylene group to be added in the polyhydric alcohol fatty acid ester include alkylene oxides having 2 to 4 carbon atoms such as ethylene oxide, propylene oxide, butylene oxide, and two or more kinds of these. May be used.
  • the order of addition of ethylene oxide, propylene oxide and butylene oxide to be added is not particularly limited, and the addition form may be any of block addition, random addition and a combination of block addition and random addition, and there is no particular limitation.
  • the added mole number of alkylene oxide is preferably 5 to 60, more preferably 10 to 50, more preferably 20 to 20 per molecule of polyhydric alcohol fatty acid ester. More preferably, 40. If it exceeds 60, the adhesiveness becomes strong, and scum may increase in the nonwoven fabric production process.
  • the polyoxyalkylene polyhydric alcohol fatty acid ester (B1) is not particularly limited, but POE (20) sorbitan monostearate, POE (20) sorbitan monolaurate, POE (20) sorbitan monopalmitate, POE (20 ) Sorbitan monooleate, POE (10) sorbitan monostearate, POE (20) sorbitan tristearate, POE (20) sorbitan trilaurate, POE (20) sorbitan tripalmitate, POE (20) sorbitan trioleate, POE (20) glyceryl monolaurate, POE (20) glycerin monostearate, POE (20) pentaerythritol dilaurate, POE (20) pentaerythritol monolaurate, POE (15) pentaerythris Tall monooleate, POE (30) castor oil ether, POE (100) castor oil ether.
  • POE means polyoxyethylene, and the number in parentheses after POE means the added mole number of oxyethylene.
  • the polyalkylene glycol fatty acid ester (B2) of the present invention (hereinafter sometimes simply referred to as ester (B2)) is an ester compound having a structure in which a fatty acid and a polyalkylene glycol are ester-bonded.
  • ester (B2) examples include polyethylene glycol monolaurate, polyethylene glycol dilaurate, polyethylene glycol monopalmitate, polyethylene glycol dipalmitate, polyethylene glycol monooleate, polyethylene glycol dioleate, polyethylene glycol monostearate, polyethylene glycol.
  • ester (B2) examples include polyethylene glycol monolaurate, polyethylene glycol dilaurate, polyethylene glycol monopalmitate, polyethylene glycol dipalmitate, polyethylene glycol monooleate, polyethylene glycol dioleate, polyethylene glycol monostearate, polyethylene glycol.
  • Examples include, but are not limited to, distearate, polyethylene polypropylene glycol monolaurate, polyethylene polypropylene glycol dilaurate, polyethylene polypropylene glycol monooleate, and polyethylene polypropylene glycol dioleate.
  • polyethylene glycol monooleate, polyethylene glycol dioleate, polyethylene glycol monostearate, and polyethylene glycol distearate are preferred from the viewpoint of less fluff during nonwoven fabric processing and improved entanglement, polyethylene glycol Monooleate and polyethylene glycol dioleate are more preferred.
  • the polyalkylene glycol constituting the ester (B2) has a molecular weight of preferably 100 to 2000, more preferably 200 to 1500, and more preferably 300 to 1000, from the viewpoint of less fluff during nonwoven fabric processing and improving entanglement. Is more preferable, and 400 to 800 is most preferable.
  • the molecular weight of the polyalkylene glycol is less than 100, there is a possibility that the fluff during processing of the nonwoven fabric may increase.
  • the molecular weight exceeds 2000 foaming of the treatment agent increases and the solidity becomes stronger, and the fiber-fiber spacing is increased. Since the friction is reduced, there is a possibility that the fluff during the nonwoven fabric processing increases.
  • the processing agent for nonwoven fabric manufacture of this invention contains the said component (A) and the said component (B), and the weight ratio of the anionic surfactant occupied to the non volatile matter of a processing agent is less than 15 weight% for nonwoven fabric manufacture It is a processing agent.
  • the total weight ratio of the component (A) and the component (B) in the nonvolatile content of the treating agent is preferably 50 to 100% by weight, more preferably 60 to 99% by weight, and still more preferably 70 to 98% by weight. 80 to 92% by weight is particularly preferable. If it is less than 50% by weight, the fiber-to-fiber friction is lowered, so that the amount of cotton is increased and the entanglement may be lowered.
  • the non-volatile content in the present invention refers to an absolutely dry component when the treatment agent is heat treated at 105 ° C. to remove the solvent and the like and reach a constant weight.
  • the weight ratio of the anionic surfactant in the nonvolatile content of the treatment agent is less than 15% by weight, preferably less than 8% by weight, more preferably less than 5% by weight, and 2% by weight. % Is more preferable, and less than 1% by weight is particularly preferable. When it is 15% by weight or more, the entanglement property is inferior and the low foaming property is not achieved. The smaller the amount of the anionic surfactant, the better the entanglement, scum suppression and low foaming properties.
  • anionic surfactant examples include sulfated esters of fats and oils, sulfate-based anionic surfactants, phosphate ester-based anionic surfactants, and sulfonic acid-based anionic surfactants.
  • the weight ratio of the sulfated ester of fats and oils and the sulfate-based anionic surfactant when the weight ratio of the sulfated ester of fats and oils and the sulfate-based anionic surfactant is large, the fiber-to-fiber friction is low, so the entanglement is poor, and the foam is easy to foam, so the low foaming property is poor. It is preferable that the weight ratio of the fatty acid sulfate, the fat sulfate amine salt, the fat sulfate alkali metal salt, and the sulfate anionic surfactant is small.
  • the component (B) preferably contains a polyoxyalkylene polyhydric alcohol fatty acid ester (B1) from the viewpoint of excellent entanglement and low wrapping properties. It is more preferable that the polyoxyalkylene polyhydric alcohol fatty acid ester (B1) is a polyoxyalkylene sorbitan monoalkylate from the viewpoint of being particularly excellent in entanglement and low enveloping property.
  • the component (A) preferably contains a mineral oil (A1) and a polyhydric alcohol fatty acid ester (A3) from the viewpoint of excellent entanglement and low wrapping properties.
  • the processing agent for nonwoven fabric production of the present invention contains the mineral oil (A1), the polyhydric alcohol fatty acid ester (A3), and the polyoxyalkylene polyhydric alcohol fatty acid ester (B1), entanglement, scum suppression, and low occurrence From the viewpoint of excellent packaging properties, it is preferable.
  • the present invention is characterized in that there are few anionic surfactants with good antistatic properties, and the mineral oil (A1), polyhydric alcohol fatty acid ester (A3), and polyoxyalkylene polyhydric alcohol fatty acid ester (B1). ) Is suitable for satisfying all of antistatic properties, entanglement properties, scum suppression and low enveloping properties.
  • the processing agent for nonwoven fabric production of the present invention contains the mineral oil (A1), the polyhydric alcohol fatty acid ester (A3), and the polyoxyalkylene polyhydric alcohol fatty acid ester (B1), antistatic properties, entanglement properties, scum suppression
  • the proportion of the mineral oil (A1) in the nonvolatile content of the treatment agent is preferably 2 to 50% by weight, more preferably 5 to 40% by weight, 35% by weight is more preferred.
  • the processing agent for producing a nonwoven fabric of the present invention contains the mineral oil (A1), the polyhydric alcohol fatty acid ester (A3), and the polyoxyalkylene polyhydric alcohol fatty acid ester (B1), antistatic properties, entanglement,
  • the weight ratio of the polyhydric alcohol fatty acid ester (A3) in the nonvolatile content of the treatment agent is preferably 2 to 50% by weight, and preferably 5 to 40% by weight. More preferred is 10 to 35% by weight.
  • the processing agent for producing a nonwoven fabric of the present invention contains the mineral oil (A1), the polyhydric alcohol fatty acid ester (A3), and the polyoxyalkylene polyhydric alcohol fatty acid ester (B1), antistatic properties, entanglement,
  • the weight ratio of the polyoxyalkylene polyhydric alcohol fatty acid ester (B1) in the nonvolatile content of the treatment agent is preferably 40 to 95% by weight, and preferably 45 to 85%. % By weight is more preferable, and 50 to 80% by weight is more preferable.
  • the processing agent for nonwoven fabric production of the present invention may contain water and / or a solvent as required, and preferably contains water essentially.
  • the water used in the present invention may be any of pure water, distilled water, purified water, soft water, ion exchange water, tap water and the like.
  • an emulsifier such as N-trialkylglycine and N-trialkylsulfobetaine, a lubricant such as carnauba wax, and the like may be added to the treatment agent for producing a nonwoven fabric of the present invention.
  • an appropriate preservative, rust inhibitor, and antifoaming agent may be added.
  • the treating agent is usually produced by adding and mixing the above-mentioned components constituting in any order.
  • the short fiber of the present invention refers to a fiber composed of a raw material short fiber main body and the treatment agent for producing a nonwoven fabric attached thereto, and is generally a short fiber cut into a predetermined length.
  • the applied amount of the processing agent for producing a nonwoven fabric is preferably 0.05 to 2.0% by weight, more preferably 0.06 to 1.5% by weight, and 0.07 to 1.0% by weight based on the raw material short fibers. % Is more preferable, and 0.08 to 0.7% by weight is particularly preferable. If it is less than 0.05%, the antistatic property may be insufficient, and if it exceeds 2.0% by weight, scum due to dropping may increase.
  • the fiber length of the short fiber of the present invention varies as follows depending on the nonwoven fabric processing mode.
  • 2 to 100 mm is preferable, 10 to 64 mm is more preferable, 20 to 60 mm is further preferable, and 31 to 55 mm is particularly preferable.
  • the fiber length is less than 2 mm or more than 100 mm, the entanglement may be reduced.
  • 1 to 40 mm is preferable, 2 to 20 mm is more preferable, 3 to 15 mm is further preferable, and 3 to 10 mm is particularly preferable.
  • the fiber length is 40 mm or less, uniform dispersion is easily achieved, and the formation of the nonwoven fabric is likely to be good.
  • the fiber length is 1 mm or more, the strength of the nonwoven fabric when processed into a nonwoven fabric is good.
  • the thickness of the short fiber of the present invention is generally expressed in units of decitex (hereinafter expressed as dtex), preferably 0.7 to 4.0 dtex, more preferably 0.8 to 3.0 dtex, 0 Is more preferably 0.9 to 2.0 dtex, and particularly preferably 1.0 to 1.5 dtex. If it is less than 0.7 dtex, the card passing property may be lowered. If it exceeds 4.0 dtex, the entanglement may be reduced.
  • the treatment agent for producing a nonwoven fabric of the present invention may be attached to the raw material short fiber body without being diluted as it is, and diluted with water or the like to a concentration such that the weight ratio of the entire nonvolatile content is 0.2 to 15% by weight. It may be attached to the raw material short fiber body as an emulsion.
  • the step of attaching the processing agent for manufacturing nonwoven fabric to the raw material short fiber body and the means for attaching the processing agent for manufacturing nonwoven fabric of the present invention to the raw material short fiber body differ depending on the type of raw material short fiber.
  • the process of attaching the processing agent for nonwoven fabric production to the raw material short fiber body is the spinning process, drawing process, crimping of the raw material short fiber body. Any of the process and the cutting process may be performed, and the means for attaching may be any of roller lubrication, nozzle spray lubrication, dip lubrication, and the like.
  • the process of attaching the processing agent for nonwoven fabric production to the raw material short fiber body is after the fiber cutting process, and the means for attaching is uniformly attached.
  • dip-nip oiling is preferable.
  • the method is not limited to the above, and a method of obtaining a desired adhesion rate more uniformly and efficiently in accordance with the short fiber manufacturing process and its characteristics may be adopted.
  • a drying method you may use the method of drying with a hot air and infrared rays, the method of making it contact with a heat source, and drying.
  • the raw material short fibers of the present invention include cotton fibers, natural fibers such as bleached cotton fibers, regenerated fibers such as rayon fibers, cupra fibers, acetate fibers, polyolefin fibers, polyester fibers, polyamide fibers, acrylic fibers, polychlorinated fibers.
  • Examples thereof include synthetic fibers such as vinyl fibers and composite fibers composed of two or more kinds of thermoplastic resins.
  • the polyamide fiber include 6-nylon fiber, 6,6-nylon fiber, and aromatic polyamide fiber.
  • the manufacturing treatment agent is preferably for rayon fibers
  • the short fibers of the present invention are preferably rayon short fibers
  • the nonwoven fabric of the present invention preferably contains rayon short fibers.
  • the raw material fibers are polyolefin fibers and polyester fibers
  • the fibers are water-repellent, a higher water pressure is required at the time of manufacturing the nonwoven fabric by the spunlace method, and from the viewpoint that foaming reduction is further necessary
  • the fibers are polyolefin fibers and polyester fibers.
  • the rayon fiber include viscose rayon fiber, strong rayon fiber, high strength rayon fiber, high wet elastic rayon fiber, solvent-spun rayon fiber, and polynosic fiber.
  • polyolefin resin / polyolefin resin for example, high density polyethylene / polypropylene, linear high density polyethylene / polypropylene, low density polyethylene / polypropylene, two types of propylene and other ⁇ -olefins are used.
  • examples thereof include an original copolymer or ternary copolymer / polypropylene, linear high-density polyethylene / high-density polyethylene, and low-density polyethylene / high-density polyethylene.
  • polyolefin resin / polyester resin for example, polypropylene / polyethylene terephthalate, high-density polyethylene / polyethylene terephthalate, linear high-density polyethylene / polyethylene terephthalate, and low-density polyethylene / polyethylene terephthalate.
  • polyester-type resin / polyester-type resin copolymer polyester / polyethylene terephthalate etc. are mentioned, for example.
  • the fiber which consists of polyamide-type resin / polyester-type resin, polyolefin-type resin / polyamide-type resin, etc. is mentioned.
  • the raw material fibers are water-repellent, a higher water pressure is required at the time of producing the nonwoven fabric by the spunlace method, and from the viewpoint of further reducing foaming properties, polyolefin resins / polyolefin resins, polyolefin resins A resin / polyester resin and a polyester resin / polyester resin are more preferable.
  • the short fiber of the present invention is used for the nonwoven fabric manufacturing process by the airlaid method or papermaking method described later, if the raw material fiber includes a heat-bonded fiber, it is mixed with a fiber other than the heat-bonded fiber and then heat-bonded. Since it becomes a nonwoven fabric by this, it is preferable.
  • the heat-fusible fiber may be any thermoplastic fiber that can be melted and fused in the nonwoven fabric manufacturing process, and a single fiber such as low-melting polyester, low-melting vinylon, and low-melting nylon, or a core made of polyethylene, polypropylene, or Polyester having a sheath with polyester, a so-called core-sheath type composite fiber such as an ethylene / vinyl acetate copolymer may be used alone, or two or more of these may be used in combination.
  • a single fiber such as low-melting polyester, low-melting vinylon, and low-melting nylon, or a core made of polyethylene, polypropylene, or Polyester having a sheath with polyester, a so-called core-sheath type composite fiber such as an ethylene / vinyl acetate copolymer may be used alone, or two or more of these may be used in combination.
  • Nonwoven fabric and method for producing nonwoven fabric As described in the background art, the nonwoven fabric processing modes are diversified, and there are a spunlace method, a needle punch method, a chemical bond method, a papermaking method, and an airlaid method.
  • the nonwoven fabric of the present invention is a nonwoven fabric produced by the method described below.
  • the short fibers of the present invention are opened in the opening process, and when two or more kinds of short fibers are used, they are mixed, and the fiber web is formed by carding with a nonwoven fabric processing machine. Make it.
  • the fibers are supplied to a nonwoven fabric processing machine, and a fleece discharged from the nonwoven fabric processing machine is appropriately laminated.
  • Nonwoven fabric processing machines include a parallel nonwoven fabric processing machine in which the fibers in the fleece are arranged in almost one direction, a random nonwoven fabric processing machine in which the fibers in the fleece are non-oriented, and a semi-random nonwoven fabric processing that has an intermediate orientation between the former two.
  • a flat nonwoven fabric processing machine or the like that is most commonly used for the opening of conventional cotton fibers can be used.
  • a large number of fleeces discharged from the nonwoven fabric processing machine may be stacked as they are to form a web in which fibers are arranged in one direction or a fiber web in which fibers are not oriented.
  • a plurality of fleeces in which fibers are arranged in one direction may be stacked in a state where the fibers of each fleece are perpendicular to each other to form a longitudinal and lateral uniform fiber web.
  • a fiber web in which fibers are non-oriented or fibers between each fleece are orthogonal is used as the fiber web.
  • the carding process by the nonwoven fabric processing machine is different from the carding process at the time of spinning in that a fiber web is produced instead of a sliver in a fiber bundle shape. For this reason, in the carding process by the nonwoven fabric processing machine, fluff that is not found in the carding process at the time of spinning tends to occur. For this reason, the nonwoven fabric manufacturing treatment agent of the present invention has a very high degree of entanglement requirement, unlike the spinning treatment agent.
  • the spunlace treatment is an entanglement treatment means in which a high-pressure water stream is made to collide with the fiber web.
  • the high-pressure water stream is, for example, a liquid such as water or warm water from an injection hole having a hole diameter of about 0.05 to 2.0 mm, particularly 0.1 to 0.4 mm, at an injection pressure of about 5 to 150 kg / cm 2 ⁇ G. If it is ejected, it can be easily obtained.
  • a device in which a large number of the injection holes are arranged in one or a plurality of rows at intervals of 0.3 to 10 mm is arranged so that the traveling direction of the fiber web is orthogonal to the rows of the injection holes. This is done by impinging a high-pressure water stream on the traveling fiber web.
  • the distance between the injection hole and the fiber web is preferably about 1 to 15 cm. If this distance is less than 1 cm, the energy when the high-pressure water stream collides with the fiber web is too large, and the resulting nonwoven fabric may be disturbed. On the other hand, if it exceeds 15 cm, the energy when the high-pressure water stream collides with the fiber web becomes small, and sufficient kinetic energy cannot be given to the fiber, and the three-dimensional entanglement tends to be insufficient.
  • the fiber web When the spunlace treatment is applied to the fiber web, the fiber web is usually supported on a support.
  • the support is placed on the side opposite to the side subjected to the spunlace treatment.
  • Any material can be used as the support so long as it allows a high-pressure water flow applied to the fiber web to pass well.
  • a mesh screen or a perforated plate is used.
  • a mesh screen such as a wire mesh is adopted, and the size of the hole is preferably about 20 to 100 mesh.
  • the fiber web is impregnated with a liquid such as water or warm water used as a liquid flow.
  • the liquid is removed by a conventionally known method to obtain a nonwoven fabric. It is obtained.
  • a method of removing the liquid first, excess liquid is mechanically removed using a squeezing device such as a mangle roll, and then the remaining liquid is removed using a drying device such as a continuous hot air dryer. A removal method or the like is used.
  • the nonwoven fabric obtained as described above has sufficient three-dimensional entanglement between fibers, and has sufficient tensile strength for use as a material for hand towels, hand towels, and the like.
  • the method for producing the fiber web is the same as the spunlace method.
  • the nonwoven fabric manufacturing method by the needle punch method is generally a three-dimensional structure in which a needle with barbs moves up and down in a direction perpendicular to the fiber bundle and the fiber bundle caught by the needle tip or barb is pushed in.
  • Including a step of producing a non-woven fabric by causing entanglement (sometimes referred to as a needle punching step).
  • the number of needle punches, the density, and the shape of the needle can be optimized to obtain a desired binding force.
  • the nonwoven fabric manufacturing method by the papermaking method includes a step of making paper by dispersing the short fibers treated with the treatment agent of the present invention in water (sometimes referred to as a papermaking step).
  • the short fibers are less likely to get entangled with each other during stirring and dispersion, settle quickly and disperse into single fibers, and have a good stable dispersibility.
  • a conventional wet papermaking process can be employed. In the wet papermaking process, the short fiber treated with the treatment agent of the present invention in the above process is put into a pulper, stirred and dispersed in water, and suspended.
  • the paper is supplied to a paper net and used as wet paper. And after the drying process which dries a wet paper, it winds up in roll shape and obtains a wet papermaking nonwoven fabric.
  • the netting net is generally a circular net or a short net, but may be a long net, a rotoformer, a hydroformer, a perchformer, or the like.
  • the drying process may be a plurality of rotary heating roller type (multi-cylinder type) or Yankee drum type.
  • the manufacturing method of the papermaking nonwoven fabric of this invention may disperse
  • the nonwoven fabric manufacturing method by the air laid method includes a step (sometimes referred to as an air laid step) in which the short fibers of the present invention are passed through a sieve or a screen to form a fiber web in which the short fibers are uniformly dispersed.
  • the short fiber of the present invention includes the above heat-fusible fiber, for example, when the fiber is composed of rayon fiber, pulp fiber, and heat-fusible fiber, after obtaining the fiber web by the airlaid process, heat fusion by heating is performed.
  • the process of manufacturing a nonwoven fabric by adhesion or thermal bonding is preferred.
  • the short fiber of the present invention does not contain a heat-fusible fiber, for example, when it is a rayon fiber alone
  • an emulsion binder is applied and the intersection of the fibers
  • the emulsion binder include acrylonitrile-butadiene rubber, styrene-butadiene rubber, polyvinyl acetate, polyethylene vinyl acetate, and polyacrylate.
  • a box-type sieve type apparatus that vibrates in any of front and rear, left and right, upper and lower, horizontal circles, etc., and disperses and drops short fibers from the sieve eyes can be used.
  • a net-like cylindrical type apparatus in which a net-like metal perforated plate is formed into a cylindrical shape, has a fiber inlet on the side surface thereof, and disperses / drops the fiber from its sieve eyes can be used.
  • the fibers are uniformly dispersed in all directions, so that a bulky fiber aggregate is formed and the fibers are uniformly dispersed. can get.
  • the weight (weight per unit area) of the fiber web is preferably about 10 to 150 g / m 2 .
  • the basis weight is less than 10 g / m 2 , the fiber density becomes small, and the three-dimensional entanglement tends to be insufficient.
  • the basis weight exceeds 150 g / m 2 , the amount of fibers per unit area is too large, and the three-dimensional entanglement tends to be insufficient.
  • the weight of the fiber web (basis weight) can select a wide range of applications as 20 ⁇ 1300g / m 2 approximately, preferably 20 ⁇ 500g / m 2, more preferably 30 ⁇ 400g / m 2. If the basis weight is less than 20 g / m 2 and more than 1300 g / m 2 , the texture of the nonwoven fabric may be lowered. In the case of the airlaid method, the weight (weight) of the fiber web is preferably about 10 to 150 g / m 2 . Even when the basis weight is less than 10 g / m 2 or more than 150 g / m 2 , there is a possibility that the thickness of the nonwoven fabric becomes non-uniform due to an inappropriate amount of fibers per unit area.
  • the non-woven fabric of the present invention is characterized by low foaming in the non-woven fabric manufacturing process by the spunlace method and the papermaking method. is there. Even when the high-pressure water flow of the spunlace method is performed with circulating water, the productivity of the nonwoven fabric can be improved because there is no harmful effect such as filter or nozzle clogging due to scum generation.
  • the nonwoven fabric of the present invention is of high quality because the web becomes uniform because the nonwoven fabric is produced by the spunlace method and the needle punch method, because the web is uniform because of its excellent entanglement.
  • the nonwoven fabric of the present invention is of high quality because the web becomes uniform due to excellent scum suppression in the nonwoven fabric manufacturing process by the airlaid method.
  • nonwoven fabric of the present invention includes the following suitable applications according to various nonwoven fabric manufacturing methods.
  • the nonwoven fabric obtained by the nonwoven fabric manufacturing method by the spunlace method is spunlaced in the manufacturing process, so that the remaining amount of the processing agent for nonwoven fabric production is small, the inter-fiber gap is large, and the flexibility is excellent. From this point of view, it is preferably used as an application or a wiping cloth that directly touches the skin.
  • Masks air filters, water, coffee and tea bags, liquid cartridges and bag filters, vacuum bags, allergen membranes, baby diapers, feminine hygiene napkins, adult incontinence products, personal hygiene wipes, bandages, wound dressings.
  • Examples include air filters, liquid filters, household wipes, store towels, battery separators, vacuum cleaner bags, cosmetic pads, food packages, clothes, clothes, medical clothes, and disposable underwear.
  • the nonwoven fabric obtained by the airlaid method is a bulky fiber aggregate, and the fibers are uniformly dispersed, so a high-strength nonwoven fabric can be obtained, so that cosmetic puffs, hygiene materials, skin It is useful for cleaning sheets, wipers, food drip absorption sheets, kitchen paper, various packaging materials, cushioning materials, adsorbent sheets, sound absorbing materials, air filters and the like.
  • the nonwoven fabric obtained by the non-woven fabric manufacturing method by the papermaking method has a uniform texture and excellent flexibility, and is therefore useful for sanitary materials, medical materials, and household products. Specifically, it is useful for a base material for skin contact, a mask, a base material for a patch, a base material for makeup removal, an interlining for clothing, a wiper, a base material for leather.
  • Non-woven fabric manufacturing process of the present invention used for manufacturing non-woven fabrics related to the human body, such as cosmetic puffs, base materials for makeup removal, skin cleaning sheets, base materials for patches, masks, kitchen paper, food drip absorption sheets, etc.
  • the agent is preferably composed of the mineral oil (A1), the polyhydric alcohol fatty acid ester (A3), and the polyoxyalkylene polyhydric alcohol fatty acid ester (B1).
  • the nonwoven fabric obtained by the nonwoven fabric manufacturing method by the needle punch method has a feature that it is rich in bulk and does not peel off between fibers. Therefore, it can be widely used for interior materials such as buildings and vehicles, passenger car seats, office or household chairs, ground sheets and agricultural non-woven fabrics. Since the nonwoven fabric obtained by the nonwoven fabric manufacturing method by the chemical bond method is rich in flexibility and drape, it can be used for interlining, coating substrates, carpet substrates, industrial materials, and the like.
  • Examples 1 to 15 and Comparative Examples 1 to 9 Using each component of the following (A1-1 to Y2), mixing at a ratio described in Tables 1 to 3, stirring, to prepare a non-volatile content of the treatment agent for nonwoven fabric production of each Example and Comparative Example, Dilution with ion exchange water gave an emulsion with a concentration of 0.5%.
  • Low foaming index (bubble height (cm)) A (very good): The height of the foam is less than 0.5 cm.
  • a second stage spunlace treatment was applied at an injection pressure of 100 kg / cm 2 ⁇ G and dried to obtain nonwoven fabrics.
  • the formation of the nonwoven fabric obtained by the spunlace method was evaluated by visual judgment.
  • Index of determination of the formation of the nonwoven fabric A There is no disturbance of the formation of the nonwoven fabric, and the appearance is very good.
  • ⁇ There is little disorder of the formation of the nonwoven fabric, and the appearance is good.
  • X Disturbance is seen in the formation of a nonwoven fabric.
  • Index of determination of the formation of the nonwoven fabric A There is no disturbance of the formation of the nonwoven fabric, and the appearance is very good. ⁇ : There is little disorder of the formation of the nonwoven fabric, and the appearance is good. (Triangle
  • the processing agents for producing nonwoven fabrics of Examples 1 to 15 include the component (A) and the component (B), and the component (A) is a mineral oil (A1), a monohydric alcohol.
  • the fatty acid ester (A2) and the polyhydric alcohol fatty acid ester (A3) are at least one selected from the group consisting of the polyoxyalkylene polyhydric alcohol fatty acid ester (B1) and the polyalkylene glycol fatty acid ester (B2). Since the weight ratio of the anionic surfactant in the nonvolatile content of the treatment agent is less than 15% by weight, the short fiber provided with the treatment agent for producing the nonwoven fabric has entanglement and scum. Excellent suppression and low foaming.
  • the treatment agent for producing a nonwoven fabric of the present invention is excellent in entanglement and scum suppression and has less foaming
  • the short fibers to which the treatment agent is applied are spunlace method, air laid method, needle punch method, chemical bond method.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

L'invention concerne : un agent de traitement pour la production de non-tissé qui a d'excellentes propriétés d'enchevêtrement de fibres, qui a une génération d'écume extrêmement réduite, et qui mousse peu ; des fibres courtes qui, lorsqu'elles sont transformées en non-tissé, ont d'excellentes propriétés d'enchevêtrement et moussent peu ; et un non-tissé ayant une texture satisfaisante. L'agent de traitement pour la production de non-tissé comprend un constituant (A) et un constituant (B), le constituant (A) étant au moins un ingrédient choisi parmi des huiles minérales (A1), des esters d'alcool/acide gras monohydriques (A2) et des esters d'alcool/acide gras polyhydriques (A3), et le constituant (B) étant au moins un ingrédient choisi parmi des esters d'alcool/acide gras de polyoxyalkylène polyhydrique (B1) et des esters de polyalkylène glycol/acide gras (B2), la proportion en poids du ou des tensioactifs anioniques dans la matière non-volatile de l'agent de traitement étant inférieure à 15 % en poids.
PCT/JP2015/084099 2014-12-24 2015-12-04 Agent de traitement pour production de non-tissé et son utilisation WO2016104106A1 (fr)

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JP6132966B1 (ja) * 2016-10-26 2017-05-24 竹本油脂株式会社 スパンレース用繊維処理剤及びスパンレース不織布の製造方法
WO2017179405A1 (fr) * 2016-04-12 2017-10-19 松本油脂製薬株式会社 Agent de traitement pour fabriquer un tissu non-tissé et son utilisation
JP2018040100A (ja) * 2016-09-02 2018-03-15 ダイワボウホールディングス株式会社 エアレイド不織布用レーヨン繊維とその製造方法、エアレイド不織布とその製造方法、及び水解紙
JP2018084004A (ja) * 2016-11-25 2018-05-31 松本油脂製薬株式会社 透水性付与剤及びその利用
JP2018193659A (ja) * 2017-05-22 2018-12-06 株式会社クラレ 皮革様シート及びその製造方法
JP2019198593A (ja) * 2018-05-18 2019-11-21 花王株式会社 吸収性物品用不織布および吸収性物品用フィルム
WO2020141592A1 (fr) 2019-01-04 2020-07-09 竹本油脂株式会社 Agent de traitement de fibres discontinues, fibre discontinue et procédé de fabrication de tissu non tissé hydrolié
WO2021044912A1 (fr) * 2019-09-06 2021-03-11 松本油脂製薬株式会社 Agent de traitement de fibre pour entrelacement de flux d'eau à haute pression et utilisation dudit agent de traitement de fibre
WO2021206113A1 (fr) 2020-04-10 2021-10-14 竹本油脂株式会社 Agent de traitement de tissu non tissé de rayonne de viscose, solution aqueuse d'agent de traitement de tissu non tissé de rayonne de viscose, rayonne de viscose, et procédé de fabrication de rayonne de viscose pour des tissus non tissés

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JPWO2017179405A1 (ja) * 2016-04-12 2019-02-14 松本油脂製薬株式会社 不織布製造用処理剤及びその利用
WO2017179405A1 (fr) * 2016-04-12 2017-10-19 松本油脂製薬株式会社 Agent de traitement pour fabriquer un tissu non-tissé et son utilisation
JP2018040100A (ja) * 2016-09-02 2018-03-15 ダイワボウホールディングス株式会社 エアレイド不織布用レーヨン繊維とその製造方法、エアレイド不織布とその製造方法、及び水解紙
JP2018071013A (ja) * 2016-10-26 2018-05-10 竹本油脂株式会社 スパンレース用繊維処理剤及びスパンレース不織布の製造方法
JP6132966B1 (ja) * 2016-10-26 2017-05-24 竹本油脂株式会社 スパンレース用繊維処理剤及びスパンレース不織布の製造方法
JP2018084004A (ja) * 2016-11-25 2018-05-31 松本油脂製薬株式会社 透水性付与剤及びその利用
JP2018193659A (ja) * 2017-05-22 2018-12-06 株式会社クラレ 皮革様シート及びその製造方法
JP2019198593A (ja) * 2018-05-18 2019-11-21 花王株式会社 吸収性物品用不織布および吸収性物品用フィルム
JP7051579B2 (ja) 2018-05-18 2022-04-11 花王株式会社 吸収性物品用不織布および吸収性物品用フィルム
WO2020141592A1 (fr) 2019-01-04 2020-07-09 竹本油脂株式会社 Agent de traitement de fibres discontinues, fibre discontinue et procédé de fabrication de tissu non tissé hydrolié
EP3907326A4 (fr) * 2019-01-04 2022-04-20 Takemoto Yushi Kabushiki Kaisha Agent de traitement de fibres discontinues, fibre discontinue et procédé de fabrication de tissu non tissé hydrolié
WO2021044912A1 (fr) * 2019-09-06 2021-03-11 松本油脂製薬株式会社 Agent de traitement de fibre pour entrelacement de flux d'eau à haute pression et utilisation dudit agent de traitement de fibre
JPWO2021044912A1 (ja) * 2019-09-06 2021-10-21 松本油脂製薬株式会社 高圧水流絡合用繊維処理剤及びその利用
JP6994611B2 (ja) 2019-09-06 2022-02-04 松本油脂製薬株式会社 高圧水流絡合用繊維処理剤及びその利用
WO2021206113A1 (fr) 2020-04-10 2021-10-14 竹本油脂株式会社 Agent de traitement de tissu non tissé de rayonne de viscose, solution aqueuse d'agent de traitement de tissu non tissé de rayonne de viscose, rayonne de viscose, et procédé de fabrication de rayonne de viscose pour des tissus non tissés

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