WO2011018933A1 - Synthetic fiber treating agent for papermaking, method for producing synthetic fiber for papermaking, and method for producing paper-made nonwoven fabric - Google Patents
Synthetic fiber treating agent for papermaking, method for producing synthetic fiber for papermaking, and method for producing paper-made nonwoven fabric Download PDFInfo
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- WO2011018933A1 WO2011018933A1 PCT/JP2010/062197 JP2010062197W WO2011018933A1 WO 2011018933 A1 WO2011018933 A1 WO 2011018933A1 JP 2010062197 W JP2010062197 W JP 2010062197W WO 2011018933 A1 WO2011018933 A1 WO 2011018933A1
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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
- D06M15/507—Polyesters
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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
- D04H13/00—Other non-woven fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—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 nitrogen
- D06M13/402—Amides imides, sulfamic acids
- D06M13/419—Amides having nitrogen atoms of amide groups substituted by hydroxyalkyl or by etherified or esterified hydroxyalkyl groups
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/53—Polyethers; Polyesters
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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
- D10B2501/00—Wearing apparel
Definitions
- the present invention relates to a synthetic fiber treating agent for papermaking, a method for producing a synthetic fiber for papermaking, and a method for producing a papermaking nonwoven fabric.
- Patent Document 1 discloses a polyester polyether block copolymer as a synthetic fiber treatment agent for papermaking.
- the processing agent according to Patent Document 1 has poor low-shear dispersibility, and as a result, the uniform dispersion of the synthetic fiber bundle in the dispersion bath is insufficient.
- Patent Document 2 discloses a mixture comprising a polyethylene glycol fatty acid monoester and a fatty acid soap.
- the treatment agent according to Patent Document 2 has a problem that the foaming in the papermaking process is much and the generated bubbles adhere to the fibers, so that uniform dispersion in the dispersion bath is insufficient.
- the antifoaming properties, defoaming properties, and low shear dispersibility required for the current synthetic fibers for papermaking are at an insufficient level, and a high-quality nonwoven fabric cannot be obtained. Therefore, in the nonwoven fabric manufactured by the papermaking method, a processing agent having all the required characteristics is desired for the synthetic fiber processing agent for papermaking because of the high quality of the nonwoven fabric.
- the object of the present invention is to improve the dispersibility at a low share with respect to the synthetic fiber for papermaking used in the papermaking nonwoven fabric, to reduce the generation of bubbles in the papermaking process, and to provide excellent fiber dispersibility. It is to provide a synthetic fiber treating agent for papermaking, a method for producing a synthetic fiber for papermaking, and a method for producing a papermaking nonwoven fabric.
- the present inventors have intensively studied. As a result, the present inventors have found that the above-mentioned problems can be solved by using a synthetic fiber treatment agent for papermaking containing a specific component as an essential component. .
- the synthetic fiber treating agent for papermaking of the present invention comprises at least one dicarboxylic acid (derivative) selected from aromatic dicarboxylic acids, aliphatic dicarboxylic acids having 4 to 22 carbon atoms, and ester-forming derivatives thereof, and alkylene.
- a component A which is a polyester compound obtained by polycondensation of glycol with polyalkylene glycol or a derivative thereof and a component B which is a condensate of a fatty acid and an alkanolamine are contained as essential components.
- the proportion of the A component in the nonvolatile content of the treatment agent is 40 to 90% by weight and the proportion of the B component is 5 to 30% by weight.
- the component A is a polycondensation of an aromatic dicarboxylic acid and / or an ester-forming derivative thereof, an alkylene glycol represented by the following chemical formula (1), and a polyalkylene glycol represented by the following chemical formula (2) or a derivative thereof. It is preferable to be a polyester compound.
- R 1 is an aliphatic hydrocarbon group having 2 to 8 carbon atoms or an alicyclic hydrocarbon group having 2 to 8 carbon atoms.
- R 2 is an alkylene group having 2 to 4 carbon atoms
- n is an integer of 20 to 200
- R 3 is a hydrogen atom, an aliphatic hydrocarbon group or an aromatic group.
- the component B is preferably a compound represented by the following general formula (3).
- R 4 is an aliphatic hydrocarbon group having 7 to 21 carbon atoms
- R 5 is a hydroxyalkyl group having 1 to 4 carbon atoms
- R 6 is a hydrogen atom, and has 1 to 4 carbon atoms. It is an alkyl group or a hydroxyalkyl group having 1 to 4 carbon atoms.
- the synthetic fiber treating agent for papermaking of the present invention preferably further contains a C component which is a fatty acid soap having 8 to 22 carbon atoms.
- a C component which is a fatty acid soap having 8 to 22 carbon atoms.
- the proportion of the A component in the nonvolatile content of the treatment agent is 40 to 90% by weight
- the proportion of the B component is 5 to 30% by weight
- the proportion of the C component is 5 to 30% by weight.
- the treatment agent is an aqueous liquid further containing water, and the ratio of the nonvolatile content in the whole treatment agent is preferably 0.05 to 50% by weight. .
- the manufacturing method of the synthetic fiber for papermaking of this invention includes the process of processing said synthetic fiber processing agent for papermaking to raw material synthetic fiber.
- the paper manufacturing method of the present invention includes a step of making paper by dispersing the synthetic fiber for paper making treated with the above-mentioned synthetic fiber treating agent for paper making in water.
- the synthetic fiber treatment agent for papermaking of the present invention can improve the dispersibility at a low share with respect to the synthetic fiber for papermaking used in papermaking, reduce the generation of bubbles in the papermaking process, and excellent fiber dispersion Can give sex.
- the method for producing a synthetic fiber for papermaking according to the present invention can provide a synthetic fiber for papermaking that has good dispersibility at a low share, reduces the generation of bubbles in the papermaking process, and has excellent dispersibility.
- the method for producing a papermaking nonwoven fabric according to the present invention can provide a papermaking nonwoven fabric having high productivity and uniform and good texture.
- the synthetic fiber treating agent for papermaking of the present invention contains A component and B component as essential components.
- each component which comprises the synthetic fiber processing agent for papermaking of this invention is demonstrated.
- Component A includes at least one dicarboxylic acid (derivative) selected from aromatic dicarboxylic acids, aliphatic dicarboxylic acids having 4 to 22 carbon atoms, and ester-forming derivatives thereof, alkylene glycols, and polyalkylene glycols or derivatives thereof. Is a polyester compound obtained by polycondensation.
- a component has strong affinity for synthetic fibers for papermaking, has low fiber / fiber friction when wet, and also has foam suppression when dissolved in water. Good dispersibility and foam suppression can be imparted.
- An ester-forming derivative is a derivative of a carboxylic acid and can form a carboxylic acid ester with a hydroxyl group-containing compound by an esterification reaction or an ester substitution reaction.
- Specific examples of the ester-forming derivative include aromatic dicarboxylic acids and esters of aliphatic dicarboxylic acids having 4 to 22 carbon atoms, acid anhydrides and amides.
- the dicarboxylic acid is not particularly limited.
- aromatic dicarboxylic acids such as phthalic acid, terephthalic acid, isophthalic acid, and 2,6-naphthalenedicarboxylic acid
- oxalic acid glutaric acid, adipic acid, pimelic acid
- C4-C22 aliphatic dicarboxylic acid such as sebacic acid
- aromatic dicarboxylic acid ester such as dimethyl terephthalate, dimethyl 5-sulfoisophthalate, dimethyl 1,4-naphthalenedicarboxylate, dimethyl adipate, etc. 22 ester-forming derivatives of aliphatic dicarboxylic acids.
- dicarboxylic acids may be used alone or in combination of two or more.
- aromatic dicarboxylic acids are preferred, terephthalic acid and isophthalic acid are more preferred, and combined use of terephthalic acid and isophthalic acid is particularly preferred.
- alkylene glycol represented by the said Chemical formula (1) is preferable.
- R 1 is an aliphatic hydrocarbon group having 2 to 8 carbon atoms or an alicyclic hydrocarbon group having 2 to 8 carbon atoms.
- Specific examples of the alkylene glycol include ethylene glycol, propylene glycol, butylene glycol, butylene glycol, 1,6-hexanediol, 1,8-octanediol, 1,4-cyclohexanedimethanol and the like. These alkylene glycols may be used alone or in combination of two or more.
- ethylene glycol, propylene glycol, and butylene glycol are preferable, and ethylene glycol is more preferable.
- the polyalkylene glycol or its derivative is not particularly limited, but the polyalkylene glycol represented by the above chemical formula (2) or its derivative is preferable.
- the polyalkylene glycol or derivative thereof may be composed of one kind or two or more kinds.
- the derivative of polyalkylene glycol means one in which one of the two terminal hydroxyl groups of the polyalkylene glycol molecule is blocked with an organic group.
- R 2 is an alkylene group having 2 to 4 carbon atoms. That is, the (OR 2 ) moiety is an oxyalkylene group, which is an oxyethylene group if it has 2 carbon atoms, an oxypropylene group if it has 3 carbon atoms, and an oxybutylene group if it has 4 carbon atoms. These oxyalkylene groups may be used alone or in combination of two or more.
- the (H (OR 2 ) n O) moiety is a polyalkylene glycol moiety, but the bonding form when two or more oxyalkylenes are used in combination may be random or block.
- R 3 is a hydrogen atom, an aliphatic hydrocarbon group or an aromatic group.
- the aliphatic hydrocarbon group may be linear or branched, and may be saturated or unsaturated.
- Examples of the aliphatic hydrocarbon group include alkyl groups having 1 to 22 (preferably 1 to 12) carbon atoms.
- Examples of the alkyl group include a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, an octyl group, a lauryl group, a stearyl group, and a behenyl group.
- the aromatic group in R 3 of the general formula (2) means an organic group containing an aromatic hydrocarbon such as benzene, naphthalene, anthracene, and the number of the aromatic hydrocarbons contained is one. It is sufficient if there are two or more.
- R 3 is an aromatic group
- the R site bonded to the oxygen atom in the general formula (2) may or may not be an aromatic hydrocarbon moiety.
- aromatic group for example, phenyl group, toluyl group, xylyl group, styrenated phenyl group, phenylethyl group, distyrenated phenyl group, tristyrenated phenyl group, benzyl group, benzylated phenyl group, dibenzylated phenyl group, Examples thereof include a tribenzylated phenyl group.
- R 3 in the general formula (2) is preferably an alkyl group or an aromatic group.
- n is an integer of 20 to 200, preferably 40 to 150, and more preferably 50 to 100. If n is less than 20, the hydrophilicity is insufficient, making it difficult to disperse in water and making it difficult to lubricate the fibers uniformly. On the other hand, if n is more than 200, affinity for synthetic fibers In some cases, the fiber / fiber friction at the time of wetting becomes high and good dispersibility cannot be imparted.
- Specific examples of the polyalkylene glycol derivative include polyethylene glycol monophenyl ether (average molecular weight: 3000), polyethylene glycol (average molecular weight 2000), polyethylene glycol monomethyl ether (average molecular weight: 1000), and the like.
- the ratio (molar ratio) of [dicarboxylic acid (derivative) / alkylene glycol] with respect to the ratio (molar ratio) of dicarboxylic acid (derivative), alkylene glycol and polyalkylene glycol or derivative thereof when producing the above-mentioned polyester compound as component A ) Is preferably in the range of 20/80 to 60/40, more preferably 30/70 to 50/50, and even more preferably 40/60 to 50/50.
- the ratio of the dicarboxylic acid (derivative) and the alkylene glycol is within this range, the reaction can easily proceed and the amount of unreacted material after the reaction is reduced.
- the ratio (molar ratio) of [dicarboxylic acid (derivative) / polyalkylene glycol or derivative thereof] is preferably in the range of 100/2 to 100/100, more preferably 100/2 to 100/50, More preferably, it is 100/2 to 100/20.
- the ratio of the dicarboxylic acid (derivative) to the polyalkylene glycol or derivative thereof is within this range, it can be easily dispersed in water, the handling property is good, the affinity for synthetic fibers is good, and the wetness is good. The fiber / fiber friction is reduced, and good dispersibility can be imparted.
- the reaction for producing the polyester compound can be carried out by appropriately selecting methods and conditions known in the art. Moreover, about reaction pressure, you may carry out by a normal pressure and you may carry out by pressure reduction.
- the proportion of the component A in the non-volatile content of the synthetic fiber treating agent for papermaking of the present invention is 40 to 90% by weight, preferably 50 to 90% by weight, more preferably 70 to 90% by weight.
- the non-volatile content of the synthetic fiber treatment agent for papermaking of the present invention means a component in the synthetic fiber treatment agent for papermaking that remains on the fiber surface even after the heat drying step for removing moisture, etc. Means a component that remains without volatilization under heat treatment conditions of 110 ° C. for 30 minutes.
- [B component] B component is a condensate obtained by condensing a fatty acid and an alkanolamine.
- the fatty acid constituting the component B is a fatty acid having 8 to 22 carbon atoms, preferably a fatty acid having 12 to 22 carbon atoms, and more preferably a fatty acid having 16 to 22 carbon atoms.
- the B component can impart good dispersibility and foam suppression properties when used in combination with the component A, and can impart good foam suppression properties and antifoaming properties particularly in the paper making process.
- the carbon number of 8 to 22 means that the fatty acid constituting the B component has 8 to 22 carbon atoms.
- the fatty acid constituting the component B include lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, oleic acid, linoleic acid, linolenic acid, ricinoleic acid, and behenic acid.
- the fatty acid constituting the component B is stearic acid, oleic acid, or ricinoleic acid in terms of good balance between foam suppression, antifoaming properties and water solubility.
- the fatty acid which comprises B component may be comprised from 1 type, and may be comprised from 2 or more types.
- alkanolamine constituting the component B examples include monomethanolamine, dimethanolamine, monoethanolamine, diethanolamine, monopropanolamine, dipropanolamine, monoisopropanolamine and the like. Of these alkanolamines, diethylamine is preferred because it has a good balance between foam suppression, antifoaming and water solubility.
- the alkanolamine constituting the component B may be composed of one kind or two or more kinds.
- Examples of the component B include fatty acid amides represented by the above chemical formula (3).
- R 4 is an aliphatic hydrocarbon group having 7 to 21 carbon atoms
- R 5 is a hydroxyalkyl group having 1 to 4 carbon atoms
- R 6 is a hydrogen atom, and has 1 to 4 carbon atoms.
- R 4 has 7 to 21 carbon atoms, preferably 11 to 21 and particularly preferably 15 to 21. If the carbon number of R 4 is less than 7, sufficient foam suppression and defoaming properties may not be exhibited in the paper making process, and in this case, good dispersibility may not be obtained.
- R 4 when the carbon number of R 4 is more than 21, water solubility in water may be deteriorated, handling properties may be impaired, and further, the cost is increased and it is not suitable for practical use.
- R 4 may be linear or branched and may be saturated or unsaturated. Examples of R 4 include an enanthyl group, nonyl group, undecyl group, tridecyl group, pentadecyl group, margaryl group, pristane group, cis-9-heptadecenyl group, and the like.
- R 4 an undecyl group, a tridecyl group, a pentadecyl group, a margaryl group, and a pristane group are preferable, and a margaryl group is particularly preferable.
- the hydroxyalkyl group for R 5 may be linear or branched.
- the number of carbon atoms of the hydroxyalkyl group of R 5 is preferably 1 to 3, more preferably 1 to 2. When the carbon number of R 5 is more than 4, the condensation reactivity is low, and the recovery rate of the condensate may be deteriorated.
- R 6 is preferably a hydroxyalkyl group having 1 to 4 carbon atoms, and more preferably a hydroxyalkyl group having 1 to 2 carbon atoms. When R 6 has more than 4 carbon atoms, the condensation reactivity is low, and the recovery rate of the condensate may be deteriorated.
- the reaction for producing the component B can be carried out by appropriately selecting methods and conditions known in the art. Moreover, about reaction pressure, you may carry out by a normal pressure and you may carry out by pressure reduction.
- the proportion of the B component in the non-volatile content of the synthetic fiber treating agent for papermaking of the present invention is 5 to 30% by weight, preferably 5 to 25% by weight, and more preferably 5 to 15% by weight.
- the ratio of the B component is within this range, sufficient foam suppression and defoaming can be imparted in the paper making process, and the friction between the fibers / fibers when wet can be reduced, and therefore, good dispersibility can be imparted. .
- the synthetic fiber treating agent for papermaking of the present invention preferably further contains a C component which is a fatty acid soap having 8 to 22 carbon atoms in addition to the above A component and B component.
- the component C is obtained by neutralizing a fatty acid with a base.
- Component C is a fatty acid soap having 8 to 22 carbon atoms, preferably a fatty acid soap having 12 to 22 carbon atoms, and more preferably a fatty acid soap having 16 to 22 carbon atoms.
- the carbon number means the carbon number of the fatty acid constituting the fatty acid soap.
- the fatty acid constituting the component C include lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, oleic acid, linoleic acid, linolenic acid, ricinoleic acid, and behenic acid.
- the fatty acid constituting the component C is stearic acid, oleic acid, or ricinoleic acid because the balance between dispersibility and water solubility is good.
- the fatty acid which comprises C component may be comprised from 1 type of these fatty acids, and may be comprised from 2 or more types.
- the fatty acid soap shown by following Chemical formula (4) is mentioned, for example.
- R 7 is an aliphatic hydrocarbon group having 7 to 21 carbon atoms, M n + is a cation, and n is an integer of 1 or more.
- examples of M n + include alkali metals such as sodium, potassium and lithium, and alkaline earth metals such as calcium and magnesium. Of these, preferred are alkali metals, and more preferred are sodium and potassium.
- R 7 has 7 to 21 carbon atoms, preferably 11 to 21 carbon atoms, particularly preferably 15 to 21 carbon atoms. If the carbon number of R 7 is less than 7, good dispersibility may not be obtained because bubbles are generated in the paper making process. On the other hand, if the carbon number of R 7 is more than 21, wettability and dispersibility with a low share may be deteriorated. Furthermore, the cost is increased and it is not suitable for practical use. R 7 may be linear or branched and may be saturated or unsaturated.
- R 7 examples include an enantyl group, nonyl group, undecyl group, tridecyl group, pentadecyl group, margaryl group, pristane group, cis-9-heptadecenyl group, and the like.
- an undecyl group, a tridecyl group, a pentadecyl group, a margaryl group, and a pristane group are preferable, and a margaryl group is particularly preferable.
- the proportion of the C component in the nonvolatile content of the synthetic fiber treating agent for papermaking of the present invention is 5 to 30% by weight, preferably 5 to 25% by weight, more preferably 5 to 15% by weight. It is. When the proportion of component C is in this range, good low shear dispersibility can be imparted in the paper making process.
- component C is not particularly limited, and can be produced, for example, by neutralizing a fatty acid having 8 to 22 carbon atoms with a base.
- the synthetic fiber treating agent for papermaking of the present invention is preferably an aqueous liquid containing water in which the aforementioned components are dispersed or emulsified.
- 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.
- the proportion of the nonvolatile content in the entire treatment agent is preferably 0.05 to 50% by weight, more preferably 0.5 to 40% by weight, and further preferably 1 to 30% by weight.
- the synthetic fiber treating agent for papermaking of the present invention can be supplemented with an additive in order to obtain an aqueous liquid in which the above-mentioned components are dispersed or emulsified and to improve the wettability at the time of adhesion.
- additives that can be used for this purpose include nonionic surfactants such as polyoxyethylene-polyoxypropylene copolymer derivatives, polyoxyethylene (hereinafter abbreviated as POE) alkyl ethers, and POE alkyl esters.
- anionic surfactants such as alkyl sulfates (salts), alkyl sulfonates (salts), and alkyl phosphates (salts).
- An organic solvent can be appropriately used in preparing the aqueous liquid of the treatment agent of the present invention, including the case where these additives are used in combination.
- the proportion of these additives in the non-volatile content of the synthetic fiber treatment agent for papermaking is not particularly limited, but is preferably less than 50% by weight, more preferably less than 20% by weight, and even more preferably less than 10% by weight.
- the synthetic fiber treatment agent for papermaking of the present invention may further contain an antibacterial agent, an antioxidant, a preservative, a matting agent, a pigment, a rust preventive, a fragrance and the like, if necessary. .
- the water emulsion in which the non-volatile content of the synthetic fiber treating agent for papermaking of the present invention is adjusted to 1% is preferably an emulsion that does not produce precipitates when heated to 40 ° C. Moreover, it is preferable not to contain an anionic surfactant and a cationic surfactant simultaneously.
- the synthetic fiber treating agent for papermaking of the present invention can be produced by mixing the A component and the B component, and optionally the C component, and optionally mixing other components.
- the order of mixing the components is not particularly limited, and these components may be mixed at room temperature (20 to 25 ° C.) or may be mixed by heating (20 ° C. to 80 ° C.).
- the form of component A includes an aqueous liquid, a paste, a powder, and a block, but an aqueous liquid is preferable from the viewpoint of handleability.
- the form of the component B includes an aqueous liquid, a powder form, a block form, etc., but an aqueous liquid is preferable from the viewpoint of handling.
- the form of component C includes an aqueous liquid, a powder form, a block form, and the like, but an aqueous liquid is preferable from the viewpoint of handling. Therefore, the synthetic fiber treating agent for papermaking of the present invention mixes an aqueous liquid containing the A component and an aqueous liquid containing the B component, and optionally an aqueous liquid containing the C component, and optionally other components. It is preferable to manufacture.
- the concentration of the aqueous liquid containing component A is, for example, 10 to 40% by weight
- the concentration of the aqueous liquid containing component B is, for example, 20 to 100% by weight
- the concentration of the aqueous liquid containing component C is, for example, For example, 20 to 50% by weight.
- Each component constituting the synthetic fiber treating agent for papermaking of the present invention is such that an aqueous liquid (at least 10% by weight or more) is heated in water at room temperature (20 to 25 ° C.) or as necessary (20 ° C. to 80 ° C.). And dissolved and mixed to form a uniform and stable emulsion. Therefore, in manufacturing sites where synthetic fiber treatment agents for papermaking are applied to synthetic fibers, aqueous solutions of each component are dissolved or mixed at room temperature or heated to prepare synthetic fiber treatment agents for papermaking that are stable emulsions. You can also
- the obtained composition for papermaking of the present invention can be obtained even if the A component and the B component, and in some cases, the C component coexist.
- the product stability of the fiber treatment agent is good and there is no problem.
- the A component, the B component, and the C component may be separated separately without mixing.
- the manufacturing method of the synthetic fiber for papermaking of this invention includes the process of processing the synthetic fiber processing agent for papermaking of this invention to raw material synthetic fiber.
- the raw material synthetic fiber refers to a synthetic fiber that has not been treated with the synthetic fiber treating agent for papermaking.
- the synthetic fiber for papermaking means a short fiber cut into a predetermined length so that it can be used in the papermaking process. Since the synthetic fiber for papermaking obtained by the method for producing synthetic fiber for papermaking of the present invention is a short fiber treated with the synthetic fiber treating agent for papermaking of the present invention, water is produced in the process of papermaking during the production of papermaking. Are dispersed with a low share, and bubbles are suppressed.
- the synthetic fiber is not particularly limited.
- polyester fiber, polyamide fiber, polyolefin fiber, polyphenylene sulfide (PPS) fiber, polyacrylonitrile fiber, polypropylene fiber, or two or more of these polymers were used.
- a composite synthetic fiber etc. can be mentioned.
- the synthetic fiber is preferably a polyester fiber in terms of high affinity between the synthetic fiber treating agent for papermaking of the present invention and the fiber, and more preferably a polyethylene terephthalate (PET) fiber.
- PET polyethylene terephthalate
- the single yarn fineness of the fiber is preferably 0.01 to 2 dtex, and the fiber length is preferably 0.5 to 25 mm.
- Polyester fiber is not only polyethylene terephthalate fiber, but also polylactic acid (PLA) fiber, polytrimethylene terephthalate (PTT) fiber, polybutylene terephthalate (PBT) fiber, polyethylene naphthalate (PEN) fiber, polyarylate fiber, etc. It means a fiber made of a polymer condensed by a reaction for forming a bond.
- the process for treating the raw synthetic fiber with the synthetic fiber treating agent for papermaking is not particularly limited as long as it is processed before the paper making process using the synthetic fiber for papermaking.
- synthetic fibers for papermaking are manufactured through a spinning process, a drawing process, a finishing process, a crimping process, and a cutting process. Further, it may be processed in at least one process selected from a stretching process and a finishing process, and may be processed in a crimping process and before and after, a cutting process, and before and after that.
- a processing method oil supply method
- a well-known method is employable. For example, when processing in a spinning process, a drawing process, and a finishing process, it can be performed by a normal processing method (oil supply method) such as a roller touch method, a spray method, or a dipping method.
- the amount of non-volatile matter attached to the synthetic fiber treatment agent for papermaking is preferably 0.05 to 2% by weight, more preferably 0.1 to 1% by weight, based on the synthetic fiber for papermaking.
- adhesion amount is less than 0.05% by weight, dispersibility may be insufficient, and when it exceeds 2% by weight, foaming in the dispersion tank may increase in the paper making process.
- the method for producing a papermaking nonwoven fabric of the present invention includes a step of making paper by dispersing the synthetic fiber for papermaking treated with the synthetic fiber treating agent of the present invention in water (sometimes referred to as a papermaking step).
- the synthetic fiber for papermaking is not easily entangled with each other during stirring and dispersion, quickly disperses into a single fiber, and has good stable dispersibility.
- a conventional wet papermaking process can be employed.
- the papermaking synthetic fiber (short fiber) treated with the papermaking synthetic fiber treating agent in the above step is put into a pulper, stirred and dispersed in water, and suspended.
- 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 raw synthetic fiber or the synthetic fiber for papermaking may be dispersed in water containing the above-mentioned synthetic fiber treating agent for papermaking to make paper.
- the method for producing a papermaking nonwoven fabric of the present invention it is possible to improve dispersibility at a low share with respect to synthetic fibers for papermaking, to reduce the generation of bubbles in the papermaking process, and to provide excellent fiber dispersibility. Therefore, not only the production speed is increased and the cost is reduced, but also a papermaking nonwoven fabric having a uniform and good texture can be obtained.
- the papermaking nonwoven fabric obtained by the production method of the present invention is used in various known fields. Particularly suitable as wipers, air filters, liquid filters, battery separators, artificial leather fabrics, disposable diapers, tea bags, and packaging materials.
- Table 1 All the numerical values in Table 1 are the proportions of non-volatile components contained in the synthetic fiber treating agent for papermaking (component A1, component A2 and component A3 are obtained as respective aqueous dispersions as shown below. Table 1 shows the ratio of each non-volatile content excluding).
- Component A1 A mixture of dimethyl terephthalate and dimethyl isophthalate in a molar ratio of 80:20, a total of 25 parts by weight, 20 parts by weight of ethylene glycol and 55 parts by weight of polyethylene glycol monophenyl ether (average molecular weight: 3000), and a small amount as a catalyst Zinc acetate and titanium tetrabutoxide were added and reacted at 175 to 200 ° C. under atmospheric pressure for 180 minutes, and the theoretical amount of methanol was distilled off to complete the transesterification reaction. Next, the temperature was raised to 230 ° C.
- the obtained polymer (average molecular weight 7000) was immediately added while stirring in warm water to obtain an aqueous dispersion of component A1.
- the concentration of component A1 in the obtained aqueous dispersion was 20% by weight.
- Component A2 Dimethyl terephthalate, dimethyl isophthalate, and dimethyl 5-sulfoisophthalate in a molar ratio of 75: 20: 5, a total of 25 parts by weight, ethylene glycol 10 parts by weight, diethylene glycol 20 parts by weight, and polyethylene glycol (average molecular weight 2000) 55 parts by weight
- a small amount of zinc acetate and titanium tetrabutoxide were added as a catalyst, and the mixture was reacted at 175 to 200 ° C. under atmospheric pressure for 180 minutes. The theoretical amount of methanol was distilled off to complete the transesterification reaction. . Next, the temperature was raised to 230 ° C.
- the obtained polymer (average molecular weight 5000) was immediately added while stirring in warm water to obtain an aqueous dispersion of component A2.
- the concentration of component A2 in the obtained aqueous dispersion was 20% by weight.
- Component A3 Dimethyl terephthalate and dimethyl isophthalate in a molar ratio of 80:20 were mixed in a total of 28 parts by weight, 7 parts by weight of ethylene glycol and 65 parts by weight of polyethylene glycol monomethyl ether (average molecular weight: 1000). Zinc acetate and titanium tetrabutoxide were added, and the mixture was reacted at 175 to 200 ° C. for 180 minutes under normal pressure, and the theoretical amount of methanol was distilled off to complete the transesterification reaction. Next, the temperature was raised to 230 ° C. and allowed to react for about 1 hour, and then the pressure was reduced to 0.5 mmHg at 230 to 260 ° C.
- the obtained polymer (average molecular weight 7000) was immediately added while stirring in warm water to obtain an aqueous dispersion of component A3.
- the concentration of Component A3 in the obtained aqueous dispersion was 20% by weight.
- Component B1 Condensate of lauric acid and diethanolamine
- Component B2 Condensate of stearic acid and diethanolamine
- Component B3 Condensate of myristic acid and diethanolamine
- Component C1 Potassium laurate component
- C2 Sodium stearate component
- C3 Oleic acid
- C4 Sodium behenate component
- D1 POE palmitic acid monoester MW: 2500
- Examples 1 to 16 and Comparative Examples 1 to 7 (1) Preparation of Emulsions Each of the components shown in Table 1 and water were mixed, and Examples 1 to 16 and Comparative Examples 1 to 7 in which the non-volatile content in the total synthetic fiber treating agent for papermaking was 20% by weight. Synthetic fiber treatment agents for papermaking were prepared. The obtained synthetic fiber treating agent for papermaking was diluted with water so that each non-volatile component had a concentration of 0.4% by weight with warm water of 25 to 60 ° C. to prepare an emulsion. Using the obtained emulsion, it was evaluated according to (2) of the following evaluation method. The results are shown in Table 2.
- polyethylene terephthalate short fiber for papermaking evaluation In the production of oiled cotton, the synthetic fiber treatment agent for papermaking to be evaluated is used for 10 g of raw fiber (polyethylene terephthalate short fiber having a fineness of 1.3 dtex and a length of 5 mm).
- the emulsion (5 g) prepared in (1) above was adhered by spraying so that the nonvolatile content was 0.2% by weight of the fiber after the adhesion treatment, and dried for 1 hour in a hot air dryer at 80 ° C.
- the polyethylene terephthalate short fibers (synthetic fibers for papermaking) obtained after drying were adjusted according to the following evaluation methods (4) to (7) after adjusting the temperature and humidity under the evaluation environmental conditions. The results are shown in Table 2.
- ⁇ Criteria> Double-circle: It is very favorable in the condition where there is no bubble.
- ⁇ Good in a situation where the degree of foaming is very small and almost no foam is formed.
- X Remarkably poor in a situation where foaming is intensely generated.
- Dispersibility test 500 g of ion-exchanged water is collected in a 500 ml beaker, 1.00 g of test fiber is put therein, and the mixture is stirred for 10 minutes with a propeller stirrer (rotation speed: 1000 rpm). The dispersion state of the fibers after the stirring was stopped was visually determined according to the following criteria, and used as an index of dispersibility.
- the synthetic fiber treating agent for papermaking of Examples 1 to 16 was lubricated as compared with the synthetic fiber for papermaking using the conventional synthetic fiber treating agent for papermaking of Comparative Examples 1 to 7.
- Synthetic fiber bundles for papermaking are less likely to get entangled with each other because the friction between fibers / fibers when wet is low in the papermaking process when producing papermaking from synthetic fiber bundles.
- it since it has good dispersibility with a low share, it disperses quickly into single fibers.
- the foam suppressing property and defoaming property are good, the fiber has less foaming property and there are no bubbles adhering to the fiber, so that the stable dispersibility is also good.
- this synthetic fiber treating agent for papermaking is added, synthetic fibers for papermaking suitable for the papermaking process in which high quality and high speed of the papermaking nonwoven fabric are required can be obtained. Moreover, by using synthetic fibers for papermaking, a papermaking nonwoven fabric having a uniform and good texture can be obtained.
- the synthetic fiber treating agent for papermaking of the present invention is suitably used for obtaining synthetic fibers for papermaking having excellent dispersibility.
- the method for producing a synthetic fiber for papermaking of the present invention is suitable for obtaining a synthetic fiber for papermaking having excellent dispersibility.
- the manufacturing method of the papermaking nonwoven fabric of this invention is suitable when obtaining the papermaking nonwoven fabric which is uniform and favorable in formation.
- Polyester filament 2-6 Pulley 7: U gauge 8: Recorder 9: Load (20 g)
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Abstract
Description
本発明の抄紙の製造方法は、上記の抄紙用合成繊維処理剤が処理された抄紙用合成繊維を水中に分散させて抄紙する工程を含むものである。 The manufacturing method of the synthetic fiber for papermaking of this invention includes the process of processing said synthetic fiber processing agent for papermaking to raw material synthetic fiber.
The paper manufacturing method of the present invention includes a step of making paper by dispersing the synthetic fiber for paper making treated with the above-mentioned synthetic fiber treating agent for paper making in water.
本発明の抄紙用合成繊維の製造方法は、低シェアでの分散性が良好で、抄紙工程での気泡の発生を低下させ、優れた分散性を有する抄紙用合成繊維を得ることができる。
本発明の抄紙不織布の製造方法は、生産性が高く、また均一で地合いの良好な抄紙不織布を得ることができる。 The synthetic fiber treatment agent for papermaking of the present invention can improve the dispersibility at a low share with respect to the synthetic fiber for papermaking used in papermaking, reduce the generation of bubbles in the papermaking process, and excellent fiber dispersion Can give sex.
The method for producing a synthetic fiber for papermaking according to the present invention can provide a synthetic fiber for papermaking that has good dispersibility at a low share, reduces the generation of bubbles in the papermaking process, and has excellent dispersibility.
The method for producing a papermaking nonwoven fabric according to the present invention can provide a papermaking nonwoven fabric having high productivity and uniform and good texture.
A成分は、芳香族ジカルボン酸、炭素数4~22の脂肪族ジカルボン酸およびこれらのエステル形成性誘導体から選ばれる少なくとも1種のジカルボン酸(誘導体)と、アルキレングリコールと、ポリアルキレングリコールまたはその誘導体とを重縮合させたポリエステル化合物である。A成分は、抄紙用合成繊維に対する親和性が強く、湿潤時の繊維/繊維間摩擦が低く、また水に溶かしたときの抑泡性も有しているので、B成分と併用することにより、良好な分散性および抑泡性を付与することができる。 [Component A]
Component A includes at least one dicarboxylic acid (derivative) selected from aromatic dicarboxylic acids, aliphatic dicarboxylic acids having 4 to 22 carbon atoms, and ester-forming derivatives thereof, alkylene glycols, and polyalkylene glycols or derivatives thereof. Is a polyester compound obtained by polycondensation. A component has strong affinity for synthetic fibers for papermaking, has low fiber / fiber friction when wet, and also has foam suppression when dissolved in water. Good dispersibility and foam suppression can be imparted.
アルキレングリコールの具体例としては、エチレングリコール、プロピレングリコール、ブチレングリコール、ブチレングルコール、1,6-ヘキサンジオール、1,8-オクタンジオール、1,4-シクロヘキサンジメタノール等が挙げられる。これらのアルキレングリコールは、1種または2種以上を併用してもよい。
アルキレングリコールのなかでも、エチレングリコール、プロピレングリコール、ブチレングリコールが好ましく、エチレングリコールがさらに好ましい。 Although there is no limitation in particular as alkylene glycol, The alkylene glycol represented by the said Chemical formula (1) is preferable. In the chemical formula (1), R 1 is an aliphatic hydrocarbon group having 2 to 8 carbon atoms or an alicyclic hydrocarbon group having 2 to 8 carbon atoms.
Specific examples of the alkylene glycol include ethylene glycol, propylene glycol, butylene glycol, butylene glycol, 1,6-hexanediol, 1,8-octanediol, 1,4-cyclohexanedimethanol and the like. These alkylene glycols may be used alone or in combination of two or more.
Among the alkylene glycols, ethylene glycol, propylene glycol, and butylene glycol are preferable, and ethylene glycol is more preferable.
脂肪族炭化水素基は直鎖状であっても分岐していてもよく、飽和であっても不飽和であってもよい。脂肪族炭化水素基としては、炭素数が1~22(好ましくは1~12)のアルキル基を挙げることができる。アルキル基としては、たとえば、メチル基、エチル基、プロピル基、ブチル基、ペンチル基、ヘキシル基、オクチル基、ラウリル基、ステアリル基、ベヘニル基等を挙げることができる。
一般式(2)のR3における芳香族基とは、本発明においては、ベンゼン、ナフタレン、アントラセン等の芳香族炭化水素を含有する有機基を意味し、含有する芳香族炭化水素の数は1つ以上であればよい。R3が芳香族基の場合、一般式(2)において酸素原子と結合するRの部位は、芳香族炭化水素部分であってもよく、そうでなくてもよい。芳香族基としては、たとえば、フェニル基、トルイル基、キシリル基、スチレン化フェニル基、フェニルエチル基、ジスチレン化フェニル基、トリスチレン化フェニル基、ベンジル基、ベンジル化フェニル基、ジベンジル化フェニル基、トリベンジル化フェニル基等を挙げることができる。
一般式(2)のR3としては、アルキル基または芳香族基が好ましい。 In the chemical formula (2), R 3 is a hydrogen atom, an aliphatic hydrocarbon group or an aromatic group.
The aliphatic hydrocarbon group may be linear or branched, and may be saturated or unsaturated. Examples of the aliphatic hydrocarbon group include alkyl groups having 1 to 22 (preferably 1 to 12) carbon atoms. Examples of the alkyl group include a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, an octyl group, a lauryl group, a stearyl group, and a behenyl group.
In the present invention, the aromatic group in R 3 of the general formula (2) means an organic group containing an aromatic hydrocarbon such as benzene, naphthalene, anthracene, and the number of the aromatic hydrocarbons contained is one. It is sufficient if there are two or more. When R 3 is an aromatic group, the R site bonded to the oxygen atom in the general formula (2) may or may not be an aromatic hydrocarbon moiety. As the aromatic group, for example, phenyl group, toluyl group, xylyl group, styrenated phenyl group, phenylethyl group, distyrenated phenyl group, tristyrenated phenyl group, benzyl group, benzylated phenyl group, dibenzylated phenyl group, Examples thereof include a tribenzylated phenyl group.
R 3 in the general formula (2) is preferably an alkyl group or an aromatic group.
また、[ジカルボン酸(誘導体)/ポリアルキレングリコールまたはその誘導体]の比率(モル比)は100/2~100/100の範囲内であることが好ましく、100/2~100/50がより好ましく、100/2~100/20がさらに好ましい。ジカルボン酸(誘導体)とポリアルキレングリコールまたはその誘導体の比率がこの範囲であることにより、容易に水に分散させることができ取扱性が良好で、合成繊維への親和性が良好で、湿潤時の繊維/繊維間摩擦が低くなり、良好な分散性を付与できる。 The ratio (molar ratio) of [dicarboxylic acid (derivative) / alkylene glycol] with respect to the ratio (molar ratio) of dicarboxylic acid (derivative), alkylene glycol and polyalkylene glycol or derivative thereof when producing the above-mentioned polyester compound as component A ) Is preferably in the range of 20/80 to 60/40, more preferably 30/70 to 50/50, and even more preferably 40/60 to 50/50. When the ratio of the dicarboxylic acid (derivative) and the alkylene glycol is within this range, the reaction can easily proceed and the amount of unreacted material after the reaction is reduced.
The ratio (molar ratio) of [dicarboxylic acid (derivative) / polyalkylene glycol or derivative thereof] is preferably in the range of 100/2 to 100/100, more preferably 100/2 to 100/50, More preferably, it is 100/2 to 100/20. When the ratio of the dicarboxylic acid (derivative) to the polyalkylene glycol or derivative thereof is within this range, it can be easily dispersed in water, the handling property is good, the affinity for synthetic fibers is good, and the wetness is good. The fiber / fiber friction is reduced, and good dispersibility can be imparted.
B成分は、脂肪酸とアルカノールアミンを縮合することによって得られる縮合物である。B成分を構成する脂肪酸は、炭素数8~22の脂肪酸であり、好ましくは炭素数12~22の脂肪酸であり、さらに好ましくは炭素数16~22の脂肪酸である。B成分は、A成分と併用することにより、良好な分散性および抑泡性を付与することができ、特に抄紙工程で良好な抑泡性、消泡性を付与できる。なお、ここで、炭素数8~22とは、B成分を構成する脂肪酸の炭素数が8~22であるという意味である。 [B component]
B component is a condensate obtained by condensing a fatty acid and an alkanolamine. The fatty acid constituting the component B is a fatty acid having 8 to 22 carbon atoms, preferably a fatty acid having 12 to 22 carbon atoms, and more preferably a fatty acid having 16 to 22 carbon atoms. The B component can impart good dispersibility and foam suppression properties when used in combination with the component A, and can impart good foam suppression properties and antifoaming properties particularly in the paper making process. Here, the carbon number of 8 to 22 means that the fatty acid constituting the B component has 8 to 22 carbon atoms.
B成分を構成するアルカノールアミンの具体例としては、モノメタノールアミン、ジメタノールアミン、モノエタノ-ルアミン、ジエタノ-ルアミン、モノプロパノールアミン、ジプロパノールアミン、モノイソプロパノ-ルアミン等が挙げられる。これらのアルカノールアミンのなかでもジエタノ-ルアミンであると、抑泡性、消泡性と水に対する水溶性のバランスが良いという点で好ましい。B成分を構成するアルカノールアミンは、1種から構成されていてもよく、2種以上から構成されていてもよい。 Specific examples of the fatty acid constituting the component B include lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, oleic acid, linoleic acid, linolenic acid, ricinoleic acid, and behenic acid. Among these fatty acids, it is preferable that the fatty acid constituting the component B is stearic acid, oleic acid, or ricinoleic acid in terms of good balance between foam suppression, antifoaming properties and water solubility. The fatty acid which comprises B component may be comprised from 1 type, and may be comprised from 2 or more types.
Specific examples of the alkanolamine constituting the component B include monomethanolamine, dimethanolamine, monoethanolamine, diethanolamine, monopropanolamine, dipropanolamine, monoisopropanolamine and the like. Of these alkanolamines, diethylamine is preferred because it has a good balance between foam suppression, antifoaming and water solubility. The alkanolamine constituting the component B may be composed of one kind or two or more kinds.
R4の炭素数は7~21であり、11~21が好ましく、15~21が特に好ましい。R4の炭素数が7未満であると、抄紙工程で十分な抑泡性、消泡性を示さないことがあり、その場合良好な分散性が得られないことがある。一方、R4の炭素数が21超であると、水に対する水溶性が悪くなり取扱い性が損なわれることがあり、さらにはコストアップになり実用に適さない。R4は直鎖状であっても分岐していてもよく、飽和であっても不飽和であってもよい。R4としては、たとえば、エナンチル基、ノニル基、ウンデシル基、トリデシル基、ペンタデシル基、マルガリル基、プリスタン基、cis-9-ヘプタデセニル基等を挙げることができる。これらのうちでも、R4としては、ウンデシル基、トリデシル基、ペンタデシル基、マルガリル基、プリスタン基が好ましく、マルガリル基が特に好ましい。 Examples of the component B include fatty acid amides represented by the above chemical formula (3). In the formula (3), R 4 is an aliphatic hydrocarbon group having 7 to 21 carbon atoms, R 5 is a hydroxyalkyl group having 1 to 4 carbon atoms, R 6 is a hydrogen atom, and has 1 to 4 carbon atoms. An alkyl group or a hydroxyalkyl group having 1 to 4 carbon atoms.
R 4 has 7 to 21 carbon atoms, preferably 11 to 21 and particularly preferably 15 to 21. If the carbon number of R 4 is less than 7, sufficient foam suppression and defoaming properties may not be exhibited in the paper making process, and in this case, good dispersibility may not be obtained. On the other hand, when the carbon number of R 4 is more than 21, water solubility in water may be deteriorated, handling properties may be impaired, and further, the cost is increased and it is not suitable for practical use. R 4 may be linear or branched and may be saturated or unsaturated. Examples of R 4 include an enanthyl group, nonyl group, undecyl group, tridecyl group, pentadecyl group, margaryl group, pristane group, cis-9-heptadecenyl group, and the like. Among these, as R 4 , an undecyl group, a tridecyl group, a pentadecyl group, a margaryl group, and a pristane group are preferable, and a margaryl group is particularly preferable.
R6としては、炭素数1~4のヒドロキシアルキル基が好ましく、炭素数1~2のヒドロキシアルキル基がさらに好ましい。R6の炭素数が4超であると縮合反応性が低く、縮合物の回収率が悪くなることがある。 The hydroxyalkyl group for R 5 may be linear or branched. The number of carbon atoms of the hydroxyalkyl group of R 5 is preferably 1 to 3, more preferably 1 to 2. When the carbon number of R 5 is more than 4, the condensation reactivity is low, and the recovery rate of the condensate may be deteriorated.
R 6 is preferably a hydroxyalkyl group having 1 to 4 carbon atoms, and more preferably a hydroxyalkyl group having 1 to 2 carbon atoms. When R 6 has more than 4 carbon atoms, the condensation reactivity is low, and the recovery rate of the condensate may be deteriorated.
上記B成分を製造する反応は、当該分野において公知の方法および条件を適宜選択して行うことができる。また、反応圧については、常圧で行ってもよく、減圧で行ってもよい。 When the component B is produced, the ratio (molar ratio) of fatty acid and alkanolamine is preferably in the range of fatty acid / alkanolamine = 3/1 to 1/3.
The reaction for producing the component B can be carried out by appropriately selecting methods and conditions known in the art. Moreover, about reaction pressure, you may carry out by a normal pressure and you may carry out by pressure reduction.
本発明の抄紙用合成繊維処理剤は、上記のA成分およびB成分に加え、さらに炭素数が8~22の脂肪酸石鹸であるC成分をさらに含むことが好ましい。C成分は、脂肪酸を塩基で中和することによって得られるものである。C成分を含むことにより、抄紙用合成繊維に対して、低シェアでさらに良好な分散性を付与できる。
C成分は、炭素数8~22の脂肪酸石鹸であり、好ましくは炭素数12~22の脂肪酸石鹸であり、さらに好ましくは炭素数16~22の脂肪酸石鹸である。なお、ここで、炭素数とは脂肪酸石鹸を構成する脂肪酸の炭素数を意味する。
C成分を構成する脂肪酸の具体例としては、ラウリン酸、ミリスチン酸、パルミチン酸、ステアリン酸、イソステアリン酸、オレイン酸、リノール酸、リノレン酸、リシノール酸およびベヘン酸などがあげられる。これらの脂肪酸のなかでも、C成分を構成する脂肪酸がステアリン酸、オレイン酸、リシノール酸であると、分散性と水に対する水溶性のバランスが良いという点で好ましい。C成分を構成する脂肪酸は、これらの脂肪酸のうちの1種から構成されていてもよく、2種以上から構成されていてもよい。C成分としては、たとえば、下記化学式(4)で示される脂肪酸石鹸が挙げられる。 [C component]
The synthetic fiber treating agent for papermaking of the present invention preferably further contains a C component which is a fatty acid soap having 8 to 22 carbon atoms in addition to the above A component and B component. The component C is obtained by neutralizing a fatty acid with a base. By including the C component, it is possible to impart a better dispersibility with a low share to the synthetic fiber for papermaking.
Component C is a fatty acid soap having 8 to 22 carbon atoms, preferably a fatty acid soap having 12 to 22 carbon atoms, and more preferably a fatty acid soap having 16 to 22 carbon atoms. Here, the carbon number means the carbon number of the fatty acid constituting the fatty acid soap.
Specific examples of the fatty acid constituting the component C include lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, oleic acid, linoleic acid, linolenic acid, ricinoleic acid, and behenic acid. Among these fatty acids, it is preferable that the fatty acid constituting the component C is stearic acid, oleic acid, or ricinoleic acid because the balance between dispersibility and water solubility is good. The fatty acid which comprises C component may be comprised from 1 type of these fatty acids, and may be comprised from 2 or more types. As C component, the fatty acid soap shown by following Chemical formula (4) is mentioned, for example.
本発明の抄紙用合成繊維処理剤は、前述の成分を分散あるいは乳化した水を含む水性液であることが好ましい。本発明に使用する水としては、純水、蒸留水、精製水、軟水、イオン交換水、水道水等のいずれであってもよい。水を含有する水性液の場合、処理剤全体に占める不揮発分の割合は、0.05~50重量%が好ましく、0.5~40重量%がより好ましく、1~30重量%がさらに好ましい。 [Other ingredients]
The synthetic fiber treating agent for papermaking of the present invention is preferably an aqueous liquid containing water in which the aforementioned components are dispersed or emulsified. 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. In the case of an aqueous liquid containing water, the proportion of the nonvolatile content in the entire treatment agent is preferably 0.05 to 50% by weight, more preferably 0.5 to 40% by weight, and further preferably 1 to 30% by weight.
本発明の抄紙用合成繊維処理剤は、A成分およびB成分、場合によってはさらにC成分を混合し、必要に応じてその他成分を混合することによって製造できる。それぞれの成分の混合順序については特に限定はなく、また、これら成分を室温(20~25℃)で混合してもよく、加温(20℃~80℃)して混合してもよい。
A成分の形態には水性液、ペースト状、粉体状およびブロック状等があるが、取り扱い性の上からは水性液が好ましい。B成分の形態には水性液、粉体状およびブロック状等があるが、取り扱い性の上からは水性液が好ましい。C成分の形態には水性液、粉体状およびブロック状等があるが、取り扱い性の上からは水性液が好ましい。したがって、本発明の抄紙用合成繊維処理剤は、A成分を含む水性液およびB成分を含む水性液、場合によってはさらにC成分を含む水性液を混合し、必要に応じてその他成分を混合して製造することが好ましい。 [Method for producing synthetic fiber treating agent for papermaking]
The synthetic fiber treating agent for papermaking of the present invention can be produced by mixing the A component and the B component, and optionally the C component, and optionally mixing other components. The order of mixing the components is not particularly limited, and these components may be mixed at room temperature (20 to 25 ° C.) or may be mixed by heating (20 ° C. to 80 ° C.).
The form of component A includes an aqueous liquid, a paste, a powder, and a block, but an aqueous liquid is preferable from the viewpoint of handleability. The form of the component B includes an aqueous liquid, a powder form, a block form, etc., but an aqueous liquid is preferable from the viewpoint of handling. The form of component C includes an aqueous liquid, a powder form, a block form, and the like, but an aqueous liquid is preferable from the viewpoint of handling. Therefore, the synthetic fiber treating agent for papermaking of the present invention mixes an aqueous liquid containing the A component and an aqueous liquid containing the B component, and optionally an aqueous liquid containing the C component, and optionally other components. It is preferable to manufacture.
本発明の抄紙用合成繊維処理剤を構成する各成分は、その水性液(少なくとも10重量%以上)が水に室温(20~25℃)または必要に応じて加温(20℃~80℃)して溶解・混合し、均一安定なエマルションとなる成分である。従って、抄紙用合成繊維処理剤を合成繊維に付与するような製造現場において、各成分の水性液を室温または加温して溶解・混合し、安定なエマルションである抄紙用合成繊維処理剤を調製することもできる。 The concentration of the aqueous liquid containing component A is, for example, 10 to 40% by weight, the concentration of the aqueous liquid containing component B is, for example, 20 to 100% by weight, and the concentration of the aqueous liquid containing component C is, for example, For example, 20 to 50% by weight.
Each component constituting the synthetic fiber treating agent for papermaking of the present invention is such that an aqueous liquid (at least 10% by weight or more) is heated in water at room temperature (20 to 25 ° C.) or as necessary (20 ° C. to 80 ° C.). And dissolved and mixed to form a uniform and stable emulsion. Therefore, in manufacturing sites where synthetic fiber treatment agents for papermaking are applied to synthetic fibers, aqueous solutions of each component are dissolved or mixed at room temperature or heated to prepare synthetic fiber treatment agents for papermaking that are stable emulsions. You can also
本発明の抄紙用合成繊維の製造方法は、原料合成繊維に、本発明の抄紙用合成繊維処理剤を処理する工程を含むものである。ここで、原料合成繊維とは、抄紙用合成繊維処理剤が処理されていない合成繊維をいう。抄紙用合成繊維とは、抄紙工程で使用できるよう所定の長さに切断された短繊維をいう。本発明の抄紙用合成繊維の製造方法によって得られる抄紙用合成繊維は、本発明の抄紙用合成繊維処理剤が処理された短繊維であるので、抄紙を製造する際の抄紙する工程で、水に低シェアで分散され、気泡が抑制される。 [Method for producing synthetic fiber for papermaking]
The manufacturing method of the synthetic fiber for papermaking of this invention includes the process of processing the synthetic fiber processing agent for papermaking of this invention to raw material synthetic fiber. Here, the raw material synthetic fiber refers to a synthetic fiber that has not been treated with the synthetic fiber treating agent for papermaking. The synthetic fiber for papermaking means a short fiber cut into a predetermined length so that it can be used in the papermaking process. Since the synthetic fiber for papermaking obtained by the method for producing synthetic fiber for papermaking of the present invention is a short fiber treated with the synthetic fiber treating agent for papermaking of the present invention, water is produced in the process of papermaking during the production of papermaking. Are dispersed with a low share, and bubbles are suppressed.
本発明の抄紙不織布の製造方法は、本発明の抄紙用合成繊維処理剤が処理された抄紙用合成繊維を水中に分散させて抄紙する工程(抄紙工程ということもある)を含むものである。該抄紙用合成繊維は、抄紙工程において、攪拌・分散時、繊維同士が絡みにくく、速やかに単繊維に分散し、安定分散性も良好である。
抄紙工程としては、常法の湿式抄紙工程を採用できる。湿式抄紙工程としては、上記工程で抄紙用合成繊維処理剤が処理された抄紙用合成繊維(短繊維)をパルパーに投入して水中で攪拌・分散し、懸濁させる。この時、水に低シェアで分散され、気泡が抑制されるので、繊維が均一に分散することで、地合いの良好な抄紙を得ることができる。次に、抄き網に供給し、湿紙とする。そして、湿紙を乾燥させる乾燥工程を経て、ロール状に巻取り、湿式抄紙不織布を得る。抄き網は円網、短網が一般的であるが、長網、ロトフォーマー、ハイドロフォーマー、パーチフォーマーなどでも構わない。乾燥工程は複数の回転加熱ローラー式(多筒式)あるいはヤンキードラム式のいずれでも構わない。 [Method for producing paper nonwoven fabric]
The method for producing a papermaking nonwoven fabric of the present invention includes a step of making paper by dispersing the synthetic fiber for papermaking treated with the synthetic fiber treating agent of the present invention in water (sometimes referred to as a papermaking step). In the papermaking process, the synthetic fiber for papermaking is not easily entangled with each other during stirring and dispersion, quickly disperses into a single fiber, and has good stable dispersibility.
As the papermaking process, a conventional wet papermaking process can be employed. In the wet papermaking step, the papermaking synthetic fiber (short fiber) treated with the papermaking synthetic fiber treating agent in the above step is put into a pulper, stirred and dispersed in water, and suspended. At this time, since it is dispersed in water with a low share and air bubbles are suppressed, paper making with a good texture can be obtained by uniformly dispersing the fibers. Next, 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.
成分A1:ジメチルテレフタレートとジメチルイソフタレートとをモル比80:20で合計25重量部、エチレングリコール20重量部およびポリエチレングリコールモノフェニルエーテル(平均分子量:3000)55重量部とを混合し、触媒として少量の酢酸亜鉛とチタンテトラブトキシドを加えて、常圧下175~200℃で180分間反応させて、ほぼ理論量のメタノールを留去し、エステル交換反応を完了させた。次いで、230℃に昇温して1時間ほど反応させた後、0.5mmHgに減圧して230~260℃において20分間、続いて0.1~0.5mmHgで275℃において40分間反応させ、得られた重合体(平均分子量7000)を直ちに温水に撹絆しながら投入して成分A1の水分散液を得た。得られた水分散液中の成分A1の濃度は20重量%であった。 Each component described in Table 1 is as follows.
Component A1: A mixture of dimethyl terephthalate and dimethyl isophthalate in a molar ratio of 80:20, a total of 25 parts by weight, 20 parts by weight of ethylene glycol and 55 parts by weight of polyethylene glycol monophenyl ether (average molecular weight: 3000), and a small amount as a catalyst Zinc acetate and titanium tetrabutoxide were added and reacted at 175 to 200 ° C. under atmospheric pressure for 180 minutes, and the theoretical amount of methanol was distilled off to complete the transesterification reaction. Next, the temperature was raised to 230 ° C. and allowed to react for about 1 hour, and then the pressure was reduced to 0.5 mmHg at 230 to 260 ° C. for 20 minutes, followed by reaction at 0.1 to 0.5 mmHg at 275 ° C. for 40 minutes. The obtained polymer (average molecular weight 7000) was immediately added while stirring in warm water to obtain an aqueous dispersion of component A1. The concentration of component A1 in the obtained aqueous dispersion was 20% by weight.
成分B2:ステアリン酸とジエタノールアミンとの縮合物
成分B3:ミリスチン酸とジエタノールアミンとの縮合物
成分C1:ラウリン酸カリウム
成分C2:ステアリン酸ナトリウム
成分C3:オレイン酸カリウム
成分C4:ベヘン酸ナトリウム
成分D1:POEパルミチン酸モノエステル MW:2500 Component B1: Condensate of lauric acid and diethanolamine Component B2: Condensate of stearic acid and diethanolamine Component B3: Condensate of myristic acid and diethanolamine Component C1: Potassium laurate component C2: Sodium stearate component C3: Oleic acid Potassium component C4: Sodium behenate component D1: POE palmitic acid monoester MW: 2500
(1)エマルションの調製
表1に示す各成分および水を混合して、抄紙用合成繊維処理剤全体に占める不揮発分の重量割合が20重量%の実施例1~16、比較例1~7の抄紙用合成繊維処理剤をそれぞれ調製した。得られた抄紙用合成繊維処理剤をそれぞれ25~60℃の温水で不揮発分の重量割合が0.4重量%の濃度になるよう水で希釈してエマルションを調製した。得られたエマルションを用いて、下記評価方法の(2)に従って評価した。その結果を表2に示す。 (Examples 1 to 16 and Comparative Examples 1 to 7)
(1) Preparation of Emulsions Each of the components shown in Table 1 and water were mixed, and Examples 1 to 16 and Comparative Examples 1 to 7 in which the non-volatile content in the total synthetic fiber treating agent for papermaking was 20% by weight. Synthetic fiber treatment agents for papermaking were prepared. The obtained synthetic fiber treating agent for papermaking was diluted with water so that each non-volatile component had a concentration of 0.4% by weight with warm water of 25 to 60 ° C. to prepare an emulsion. Using the obtained emulsion, it was evaluated according to (2) of the following evaluation method. The results are shown in Table 2.
図1のように、カット直前のトウを脱脂したポリエステルフィラメント(150d/48f)(1)をプーリー(2~6)に通して図1に示すようにセットした。Uゲージ(7)に結びつけたフィラメントの一端を3cm/min.の速度で引っ張ることによって、上記(1)で作製したエマルションでフィラメントを浸し加撚部分の繊維間の最大摩擦力(g)を測定した。測定の雰囲気は全て20℃×65%RHとした。 (2) Fiber / fiber friction (F / F friction) test when wet As shown in FIG. 1, the polyester filament (150d / 48f) (1) from which the tow just before cutting was degreased was passed through the pulleys (2 to 6). Was set as shown in FIG. One end of the filament tied to the U gauge (7) is 3 cm / min. The filament was dipped with the emulsion prepared in (1) above, and the maximum frictional force (g) between the fibers in the twisted portion was measured. The measurement atmosphere was all 20 ° C. × 65% RH.
給油綿の作製においては、原料繊維(繊度1.3dtex、長さ5mmのポリエチレンテレフタレート短繊維)10gに対して、評価対象の抄紙用合成繊維処理剤の不揮発分が付着処理後の繊維の0.2重量%になるように、上記(1)で調製したエマルション5gをスプレーで付着させ、80℃の温風乾燥機の中で1時間乾燥した。乾燥後に得られたポリエチレンテレフタレート短繊維(抄紙用合成繊維)を、それぞれ、評価環境条件下で温湿度調節させた後、下記評価方法の(4)~(7)に従って評価した。その結果を表2に示す。 (3) Polyethylene terephthalate short fiber for papermaking evaluation In the production of oiled cotton, the synthetic fiber treatment agent for papermaking to be evaluated is used for 10 g of raw fiber (polyethylene terephthalate short fiber having a fineness of 1.3 dtex and a length of 5 mm). The emulsion (5 g) prepared in (1) above was adhered by spraying so that the nonvolatile content was 0.2% by weight of the fiber after the adhesion treatment, and dried for 1 hour in a hot air dryer at 80 ° C. The polyethylene terephthalate short fibers (synthetic fibers for papermaking) obtained after drying were adjusted according to the following evaluation methods (4) to (7) after adjusting the temperature and humidity under the evaluation environmental conditions. The results are shown in Table 2.
500mlビーカーにイオン交換水500gを採取し、その中に試験用繊維1.00gを入れ、プロペラ撹拌機(回転数100rpm)で1分間攪拌する。攪拌停止後、1分後の繊維の分散状態を次の判定基準で目視判定し、繊維の低シェア分散性の指標とした。
<判定基準>
◎:低シェア分散性が非常に良好で、繊維が均一に分散している。
○:低シェア分散性が良好であるが、繊維束が一部に認められる。
△:低シェア分散性がやや良好で、繊維束が多く認められる。
×:低シェア分散性が不良で、繊維束が著しく多く認められる。 (4) Low shear dispersibility test 500 g of ion-exchanged water is collected in a 500 ml beaker, and 1.00 g of test fiber is put therein and stirred with a propeller stirrer (rotation speed 100 rpm) for 1 minute. After the stirring was stopped, the fiber dispersion state after 1 minute was visually determined according to the following criteria, which was used as an index of the low shear dispersibility of the fiber.
<Criteria>
A: Low shear dispersibility is very good, and fibers are uniformly dispersed.
○: Low shear dispersibility is good, but some fiber bundles are observed.
(Triangle | delta): Low shear dispersibility is a little good and many fiber bundles are recognized.
X: Low shear dispersibility is poor, and remarkably many fiber bundles are observed.
500mlビーカーにイオン交換水500gを採取し、その中に試験用繊維1.00gを入れ、プロペラ撹拌機(回転数1000rpm)で10分間攪拌する。攪拌停止後の泡立ち状態を次の判定基準で目視判定し、抑泡性の指標とした。
<判定基準>
◎:全く泡が立っていない状況で非常に良好である。
○:泡立ちの程度が微量でほとんど泡が立っていない状況で良好である。
△:泡立ちが発生している状況でやや良好である。
×:泡立ちが激しく発生している状況で著しく不良である。 (5) Foam suppression test 500 g of ion-exchanged water is collected in a 500 ml beaker, 1.00 g of test fiber is put therein, and the mixture is stirred for 10 minutes with a propeller stirrer (rotation speed 1000 rpm). The foaming state after the stirring was stopped was visually determined according to the following criteria, and used as an index of foam suppression.
<Criteria>
(Double-circle): It is very favorable in the condition where there is no bubble.
◯: Good in a situation where the degree of foaming is very small and almost no foam is formed.
(Triangle | delta): It is a little good in the condition where foaming has generate | occur | produced.
X: Remarkably poor in a situation where foaming is intensely generated.
500mlビーカーにイオン交換水500gを採取し、その中に試験用繊維1.00gを入れ、プロペラ撹拌機(回転数1000rpm)で10分間攪拌する。攪拌停止後、再びプロペラ撹拌機(回転数100rpm)で1分間攪拌する。攪拌停止後、繊維に付着した気泡の状況を次の判定基準で目視判定し、脱泡性の指標とした。
<判定基準>
◎:繊維に付着した気泡が全く認められない状況で非常に良好である。
○:繊維に付着した気泡がほとんど認められない状況で良好である。
△:繊維に付着した気泡が一部に認められやや良好である。
×:繊維に付着した気泡が明らかに認められ著しく不良である。 (6) Defoaming test 500 g of ion-exchanged water is collected in a 500 ml beaker, 1.00 g of test fiber is put therein, and the mixture is stirred for 10 minutes with a propeller stirrer (rotation speed 1000 rpm). After the stirring is stopped, the mixture is again stirred for 1 minute with a propeller stirrer (rotation speed: 100 rpm). After the stirring was stopped, the state of bubbles adhering to the fibers was visually determined according to the following criteria, and used as an index for defoaming.
<Criteria>
(Double-circle): It is very favorable in the situation where the bubble adhering to the fiber is not recognized at all.
○: Good in a situation where almost no bubbles attached to the fiber are observed.
(Triangle | delta): The bubble adhering to the fiber is recognized partially, and is somewhat favorable.
X: The bubble adhering to a fiber is recognized clearly and it is remarkably bad.
500mlビーカーにイオン交換水500gを採取し、その中に試験用繊維1.00gを入れ、プロペラ撹拌機(回転数1000rpm)で10分間攪拌する。攪拌停止後の繊維の分散状況を次の判定基準で目視判定し、分散性の指標とした。
<判定基準>
◎:分散性が非常に良好で、繊維が均一に分散している。
○:分散性が良好であるが、繊維束が一部に認められる。
△:分散性がやや良好で、繊維束が多く認められる。
×:分散性が不良で、繊維束が著しく多く認められる。 (7) Dispersibility test 500 g of ion-exchanged water is collected in a 500 ml beaker, 1.00 g of test fiber is put therein, and the mixture is stirred for 10 minutes with a propeller stirrer (rotation speed: 1000 rpm). The dispersion state of the fibers after the stirring was stopped was visually determined according to the following criteria, and used as an index of dispersibility.
<Criteria>
A: Dispersibility is very good, and fibers are uniformly dispersed.
○: Dispersibility is good, but some fiber bundles are observed.
Δ: Dispersibility is slightly good, and many fiber bundles are observed.
X: Dispersibility is poor, and remarkably many fiber bundles are observed.
2~6:プーリー
7:Uゲージ
8:記録計
9:荷重(20g) 1: Polyester filament 2-6: Pulley 7: U gauge 8: Recorder 9: Load (20 g)
Claims (9)
- 芳香族ジカルボン酸、炭素数4~22の脂肪族ジカルボン酸およびこれらのエステル形成性誘導体から選ばれる少なくとも1種のジカルボン酸(誘導体)と、アルキレングリコールと、ポリアルキレングリコールまたはその誘導体とを重縮合させたポリエステル化合物であるA成分と、脂肪酸とアルカノ-ルアミンとの縮合物であるB成分とを必須成分として含む、抄紙用合成繊維処理剤。 Polycondensation of at least one dicarboxylic acid (derivative) selected from aromatic dicarboxylic acids, aliphatic dicarboxylic acids having 4 to 22 carbon atoms and ester-forming derivatives thereof, alkylene glycol, and polyalkylene glycol or derivatives thereof A synthetic fiber treating agent for papermaking, comprising as an essential component a component A as a polyester compound and a component B as a condensate of a fatty acid and an alkanolamine.
- 前記処理剤の不揮発分に占めるA成分の割合が40~90重量%で、B成分の割合が5~30重量%である、請求項1に記載の抄紙用合成繊維処理剤。 The synthetic fiber treating agent for papermaking according to claim 1, wherein the proportion of the A component in the non-volatile content of the treating agent is 40 to 90% by weight and the proportion of the B component is 5 to 30% by weight.
- 前記A成分が、芳香族ジカルボン酸および/またはそのエステル形成誘導体と、下記化学式(1)で表されるアルキレングリコールと、下記化学式(2)で表されるポリアルキレングリコールまたはその誘導体とを重縮合させたポリエステル化合物である、請求項1または2に記載の抄紙用合成繊維処理剤。
- 前記B成分が、下記一般式(3)で表される化合物である、請求項1~3のいずれかに記載の抄紙用合成繊維処理剤。
- 炭素数が8~22の脂肪酸石鹸であるC成分をさらに含む、請求項1~4のいずれかに記載の抄紙用合成繊維処理剤。 The synthetic fiber treating agent for papermaking according to any one of claims 1 to 4, further comprising a C component which is a fatty acid soap having 8 to 22 carbon atoms.
- 前記処理剤の不揮発分に占めるA成分の割合が40~90重量%で、B成分の割合が5~30重量%で、C成分の割合が5~30重量%である、請求項5に記載の抄紙用合成繊維処理剤。 The proportion of the A component in the non-volatile content of the treatment agent is 40 to 90% by weight, the proportion of the B component is 5 to 30% by weight, and the proportion of the C component is 5 to 30% by weight. Synthetic fiber treatment agent for papermaking.
- 前記処理剤が水をさらに含む水性液となっており、処理剤全体に占める不揮発分の割合が0.05~50重量%である、請求項1~6のいずれかに記載の抄紙用合成繊維処理剤。 The synthetic fiber for papermaking according to any one of claims 1 to 6, wherein the treatment agent is an aqueous liquid further containing water, and a ratio of a non-volatile content in the whole treatment agent is 0.05 to 50% by weight. Processing agent.
- 原料合成繊維に、請求項1~7のいずれかに記載の抄紙用合成繊維処理剤を処理する工程を含む、抄紙用合成繊維の製造方法。 A method for producing a synthetic fiber for papermaking, comprising a step of treating the raw synthetic fiber with the synthetic fiber treatment agent for papermaking according to any one of claims 1 to 7.
- 請求項1~7のいずれかに記載の抄紙用合成繊維処理剤が処理された抄紙用合成繊維を水中に分散させて抄紙する工程を含む、抄紙不織布の製造方法。 A method for producing a papermaking nonwoven fabric, comprising a step of dispersing the papermaking synthetic fiber treated with the papermaking synthetic fiber treating agent according to any one of claims 1 to 7 in water.
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JP2010539654A JP4709327B2 (en) | 2009-08-11 | 2010-07-21 | Synthetic fiber treatment agent for papermaking, method for producing papermaking synthetic fiber, and method for producing papermaking nonwoven fabric |
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JPS58208500A (en) | 1982-05-28 | 1983-12-05 | 帝人株式会社 | Papermaking polyester fiber |
ES2180372B1 (en) * | 2000-03-22 | 2003-10-16 | Kao Corp Sa | ESTERS DERIVED FROM ALCANOLAMINES, DICARBOXYL ACIDS AND FATAL ALCOHOLS, AND THE CATIONIC TENSIOACTIVES OBTAINABLE FROM THEMSELVES. |
US20040034137A1 (en) * | 2001-06-20 | 2004-02-19 | Yoshihiro Kando | Oligomer inhibitor for polyester fiber |
JP2004176213A (en) * | 2002-11-27 | 2004-06-24 | Nisshin Kagaku Kenkyusho:Kk | Modifier for paper and method for producing paper |
JP2004238764A (en) | 2003-02-06 | 2004-08-26 | Sanyo Chem Ind Ltd | Dispersant for papermaking |
WO2005098124A1 (en) * | 2004-04-07 | 2005-10-20 | Matsumoto Yushi-Seiyaku Co., Ltd. | Fiber-treating agent, short polyester fiber made with the same, and nonwoven fabric |
KR101374640B1 (en) * | 2006-03-17 | 2014-03-17 | 마쓰모토유시세이야쿠 가부시키가이샤 | Fiber treatment agent and application thereof |
-
2010
- 2010-07-21 KR KR1020127003862A patent/KR101684864B1/en active IP Right Grant
- 2010-07-21 JP JP2010539654A patent/JP4709327B2/en active Active
- 2010-07-21 WO PCT/JP2010/062197 patent/WO2011018933A1/en active Application Filing
- 2010-07-21 CN CN201080034116.7A patent/CN102471994B/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH10331072A (en) * | 1997-05-30 | 1998-12-15 | Takemoto Oil & Fat Co Ltd | Application of hydrophilicity to hydrophobic synthetic fiber in production of nonwoven fabric by wet process |
JPH1161683A (en) * | 1997-06-09 | 1999-03-05 | Takemoto Oil & Fat Co Ltd | Synthetic fiber treating agent for papermaking and treatment of synthetic fiber for papermaking |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2014101586A (en) * | 2012-11-16 | 2014-06-05 | Matsumoto Yushi Seiyaku Co Ltd | Synthetic fiber treatment agent for paper making, method of manufacturing synthetic fiber for paper making and method of manufacturing of paper making nonwoven fabric |
Also Published As
Publication number | Publication date |
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KR20120046256A (en) | 2012-05-09 |
KR101684864B1 (en) | 2016-12-09 |
CN102471994A (en) | 2012-05-23 |
JPWO2011018933A1 (en) | 2013-01-17 |
CN102471994B (en) | 2013-09-25 |
JP4709327B2 (en) | 2011-06-22 |
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