MXPA98009455A - Treatment for elastic polyurethane fibers, and elastic polyurethane fibers treated therewith - Google Patents

Abstract

A treatment for elastic polyurethane fibers, characterized by comprising a dispersion prepared by dispersing a higher fatty acid/magnesium salt in the colloidal form in a silicone mixture composed of a dispersion medium comprising a silicone oil and a dispersant mainly comprising a modified silicone, wherein the proportion of the salt ranges from 1 to 10 parts by weight per 100 parts by weight of the silicone oil, the ratio of the dispersion medium to the dispersant ranges from 100/0.5 to 100/4.5 (by weight), and the silicone oil has a viscosity ranging from 5 x 10-6 to 50 x 10-6 m2/s.

Description

TREATMENT AGENT FOR ELASTIC POLYURETHANE FIBERS AND ELASTIC POLYURETHANE FIBERS TREATED WITH THE SAME TECHNICAL FIELD The present invention relates to a treatment agent for elastic polyurethane fibers, and elastic polyurethane fibers treated by using the treatment agent. In more detail, it relates to a treatment agent for elastic polyurethane fibers, which is stable in viscosity for a long time during use in the production process of elastic polyurethane fibers and allows packages with good shape to be produced. winding and rolling capacity, if the treatment agent with a magnesium salt of fatty acid well dispersed is provided to elastic polyurethane fibers, and which drips less and accumulates less in the guides to ensure stable operation (step of the fiber). The present invention also relates to elastic polyurethane fibers treated by using the treatment agent.

BACKGROUND ART Conventional methods for treating elastic polyurethane yarns include, 1) treating by a treatment agent with a higher fatty acid metal salt dispersed in polydimethylsiloxane or mineral oil (JP-B-SHO-37-4586, SHO -40-5557 and HEI-6-15745), 2) treat by means of a treatment agent with an amino-modified silicone, added to the polydimethylsiloxane or mineral oil (JP-B-SHO-63-8233), 3) treat by a treatment agent with a silicone modified with polyether, added to polydimethylsiloxane or mineral oil (JP-B-SHO-61-459, and JP-A-HEI-2-127569 and 6-41873), 4) treated by an agent of treatment with a silicone resin, added to polydimethylsiloxane or mineral oil (JP-B-SHO-42-8438 and 63-12197 and JP-A-HEI-8-74179), 5) treatment by means of a treatment agent with a silicone modified with amino and a silicone resin, added to polydimethylsiloxane or mineral oil (JP-A-HEI-3-294524, 3-51374 and 5-19 5442), etc. In the method for treating an elastic polyurethane yarn by a treatment agent with a larger fatty acid metal salt, dispersed in polydimethylsiloxane or mineral oil, the initial dispersed state of the larger fatty acid salt can not be retained by causing cohesion , settlement, etc. , over time. Since a treatment agent is remarkably low in dispersion stability like this, the higher fatty acid metal salt adheres to each other even if the treatment agent is sufficiently stirred when used. In this way, the elastic polyurethane yarn can not have a satisfactory rolling capacity, since the segments that overlap the yarn adhere to each other. Additionally, since the larger fatty acid metal salt adhering to each other drips and accumulates in the guides during processing, unfortunately the yarn rupture is caused. Moreover, if a treatment agent with a larger amount of a larger dispersed fatty acid metal salt is used, any dissolved matter from the fibers during processing elevates the viscosity of the treatment agent over time, and unfortunately you can not achieve a stable operation. If a treatment agent with a modified silicone, such as an amino-modified silicone, polyether-modified silicone or silicone resin, added to polydimethylsiloxane or mineral oil, is used, the effect of preventing adhesion between segments of yarn in a package of Elastic polyurethane resin is weaker compared to the case of using a treatment with a larger fatty acid metal salt, and satisfactory rolling capacity can not be obtained. Especially when a treatment agent containing a silicone modified with amino or silicone modified with polyether is used for treatment, the coefficient of inter-fiber friction becomes very low, and the winding in the package is deformed and a good shape can not be obtained. of winding. In addition, the low molecular components dissolve away from the fibers, to drip and accumulate as waste in the guides with the passage of time, without inconveniently allowing a stable operation.

DESCRIPTION OF THE INVENTION An object of the present invention is to provide a treatment agent for elastic polyurethane fibers, which can give an excellent form of winding and rolling capacity to elastic polyurethane fibers and can decrease the deposit and accumulation of waste in the guides during processing to ensure a stable operation, and in addition to provide elastic polyurethane fibers treated using the treatment agent.

The present invention can provide a treatment agent for elastic polyurethane fibers comprising a dispersion in which a magnesium salt of higher fatty acid, represented by the following formula I is colloidally dispersed in a silicone mixture, consisting of an oil of silicone with a viscosity of 5 x 10"s - 50 x 10" 6 m2 / s at 25 ° C as a dispersion medium and a dispersant with a modified silicone as a main ingredient at a weight ratio of dispersion / dispersant medium = 100 / 0.5 - 100 / 4.5, wherein the amount of the magnesium salt of higher fatty acid is 1 to 10 parts by weight per 100 parts by weight of the silicone oil.

R 2 - C O O M g R 3 -C O O / (R, R, an alkyl group with 1 1 to 21 carbon atoms) BRIEF DESCRIPTION OF THE DRAWINGS The present invention can be understood well with reference to the drawings. Fig. 1 is a schematic view showing an instrument that measures the coefficient of friction of the fiber. Fig. 2 is a schematic view showing an instrument that measures the coefficient of friction of metal. Fig. 3 is an illustration showing a winding shape. Fig. 4 is a schematic view showing an instrument that measures the rolling capacity.

BEST MODES OF THE INVENTION In the treatment agent for elastic polyurethane fibers according to the present invention (hereinafter simply referred to as "the treatment agent"), the silicone oil used as a dispersion medium has a viscosity 5 x 10"6 - 50 x 106 m2 / s at 25 ° C. A preferable range is 10 x 10'6 - 30 x 10'6 m2 / s The viscosity is measured according to the method declared in JIS-K2283 ( Petroleum Product Kinematic Viscosity Testing Methods). The siloxane components of such silicone oils include, 1) polydimethylsiloxane consisting of dimethylsiloxane component, 2) a polydialkylsiloxane consisting of dimethylsiloxane component and a dialkylsiloxane component containing an alkyl group with 2 to 4 carbon atoms, and 3) a polysiloxane consisting of dimethylsiloxane component and methylphenylsiloxane component. For the silicone oil of the present invention, polydimethylsiloxane is preferred. In the treatment of the present invention, the modified silicone used as a dispersant is a linear polyorganosiloxane containing dimethylsiloxane component as an essential component. The modified silicones, which can be used here, include amino-modified silicones, carboxyamide modified silicones, carboxy-modified silicones, etc. In the present invention, an amino-modified silicone refers to a linear polyorganosiloxane with a dimethylsiloxane component and a siloxane component with an amino-modified group, as essential components. The siloxane component with an amino-modified group can be a divalent amino-modified amino siloxane covered by c in the polyorganosiloxane chain or a modified monovalent amino dimethyl siloxane component or a dimethyl amino modified silyl component, as a terminal group in the following formula II. The present invention is not limited in the class or binding position of the amino-modified siloxane, but one with at least one divalent amino-modified siloxane component covered by c is preferred, in view of the dispersibility of the magnesium salt of fatty acid described above. When an amino-modified group is located in the polyorganosiloxane chain and not in a terminal, it is preferred that the siloxane component containing it, exist without repeating or repeating 2 to 5 times. In this case, even if a terminal group is a component of trimethylsiloxane or trimethylsilyl component, in which X1 or X2 denotes a methyl group, or a silicone component modified with amino dimethyl or amino modified dimethyl silyl component, in which X1 or X2 denotes an amino-modified group, no inconvenience is caused. CH3 CH3 CH3 CH3 CH3 X1 - S iO (S iO) a (S i O) b (S i O) cS i -X p CH: CH RX: CH (where X1, X2, X3: a methyl group or modified group with amino represented by -R4 (NH-Rs) d -NH2; at least one of them is the amino-modified group, R1: an alkyl group with 2 to 5 carbon atoms or phenyl group, R4, Rs: an alkylene group having 2 to 5 carbon atoms, a, b: a is an integer from 25 to 400 and b is an integer from 0 to 200, subject to 25 < a + b < 400, c: an integer from 0 to 10 d: 0 or 1) In the amino-modified silicone used in the present invention, the siloxane component that does not contain any amino-modified group to form the polyorganosiloxane backbone, it can also be a divalent organosiloxane component covered by b in formula II, as well as a dimethylsiloxane component. The sum of the repetition numbers of these siloxane components is 25 to 400, but especially it is preferred that only the dimethylsiloxane component is used and that the repeat number thereof is 100 to 200. In the amino-modified silicone, the amino-modified group can be an amino-alkyl group with 2 to 5 carbon atoms corresponding to the case of (1) d = 0 in the general formula -R4 (NH-Rs-) d-NH2, or an aminsalkylaminoalkyl group with 2 to 5 carbon atoms in the alkyl group corresponding to the case of (2) d = 1. The aminoalkyl group (1) can be, for example, 2-aminoethyl group, 3-aminopropyl group or 4-aminobutyl group, etc. , and between them, the 2-aminoethyl group or the 3-aminopropyl group can be used advantageously. The aminoalkylaminoalkyl group (2) can be used, for example, the N- (2-aminoethyl) -3-aminopropyl group or the N- (2-aminoethyl) -2-aminoethyl group, etc. Among them, the N- (2-aminoethyl) -3-aminopropyl group can be conveniently used. In the present invention, the silicone modified with carboxyamide refers to a linear polyorganosiloxane with a dimethylsiloxane component and a cyclohexane component with a carboxyamide-modified group, as essential components. The cyclohexane component with a carboxyamide-modified group can be a modified silaxane component with divalent methyl carboxyamide covered by d in the polyorganosiloxane chain, or a silicone component modified with monovalent dimethyl carboxyamide or dimethyl carboxyamide-modified silyl component as a terminal group in the following formula III. The present invention is not limited in the class or position of ligation of the modified silaxane component with carboxyamide and / or carboxyamide-modified silyl component, but one with at least one modified silaxane component with divalent methyl carboxyamide covered by d is preferred. , in view of the dispersibility of the magnesium salt of greater fatty acid described below. If the group modified with carboxyamide exists in the polyorganosiloxane chain and not in a terminal one, it is preferred that the siloxane component containing it, exist without repeating or repeating 2 to 5 times. In this case, it is especially preferred as a terminal group, the trimethylsiloxane component or trimethylsilyl component, in which X1 or X2 denote a methyl group. CH, CH3 CH., CH3 CH3 CH3 X • S i O (S i O) a (S i O) b (S i O) c (S iO) d S i -X2 m CH3 CH; R1 R: X; CH3 (where X1, X2, X3: a methyl group or group modified with carboxyamide represented by the following formula IV, at least one of them is said group modified with carboxyamide, R1: an alkyl group with 2 to 5 carbon atoms or phenyl group R2: -Rs - (NH-R6-) f-NH2 Rs, R6: an alkylene group with 2 to 5 carbon atoms, a, b, c: a is an integer from 25 to 400, b is an integer from 0 to 200, c is an integer from 0 to 5, subject a25 = a + b + c < 600 d: an integer from 0 to 10 f: 0 or 1) -R7 - (NH-R8-) e- NHCO-R9-COOH • • • IV (where R7, R8: an alkylene group with 2 to 5 carbon atoms, R9: an alkylene group with 2 to 20 carbon atoms, an alkenylene group with 2 to 20 carbon atoms, group alkenylethylene with an alkenyl group having 2 to 20 carbon atoms or phenylene group, e: 0 or 1) In the silicone modified with carboxyamide used in the present invention, the siloxane component does not contain any group modified with carboxyamide to form the main chain The polyorganosiloxane pal can be a divalent organosiloxane component covered by b or a divalent amino-modified siloxane component covered by c in formula ll, as well as a dimethylsiloxane component. The sum of the repetition numbers of these siloxane components is 25 to 400, but especially it is preferred that only the dimethylsiloxane component is used and that its repeat number is 100 to 200. In the silicone modified with carboxyamide, the modified group with carboxyamide can be a carboxyamidoalkyl group with 2 to 5 carbon atoms in the alkyl group corresponding to the case of (1) e = 0 in -R7 - (NH-R8-) e-NHCO-R -COOH represented by formula IV , or a carboxyamidoalkylaminoalkyl group with 2 to 5 carbon atoms in the alkyl group corresponding to the case of (2) e = 1. The carboxyamidoalkyl group (1) can be, for example, an N- (2-carboxyethylcarbonyl) -2-aminoethyl group, N- (2-carboxyethylcarbonyl) -3-aminopropyl group or N- (2-carboxyethylcarbonyl) -4- group aminobutyl, etc. Among them, the N- (2-carboxyethylcarbonyl) -2-aminoethyl group or the N- (2-carboxyethylcarbonyl) -3-aminopropyl group can be advantageously used. The carboxyamidoalkylaminoalkyl group (2) can be, for example, the group N- [N- (4-carboxybutylcarbonyl) -2-aminoethyl] -3-aminopropyl, the group N- [N- (4-carboxybutylcarbonyl) -2-aminoethyl ] -2-aminoethyl, etc. Among them, the N- [N- (4-carboxybutylcarbonyl) -2-aminoethyl] -3-aminopropyl group can be advantageously used. In the present invention, the carboxy-modified silicone refers to a linear polyorganosiloxane containing a dimethylsiloxane component and a siloxane component with a carboxy-modified group, as essential components. The siloxane component with a carboxy-modified group can be a divalent methylated carboxylic acid-coated silicone component covered by the polyorganosiloxane chain or a monovalent carboxy dimethyl carboxy modified siloxane component or dimethyl carboxy-modified silyl component as a terminal group in the following formula V. The present invention is not limited in the class or binding position of the carboxy-modified siloxane component or carboxy-modified silyl component, but one containing at least one modified siloxane component is preferred. divalent methyl carboxy covered by g, in view of nature to inhibit the elevation of the viscosity of the treatment with the pas of time and the dispersibility of the magnesium salt of greater fatty acid described below. If there is a group modified with carboxy in the polyorganosiloxane chain and not a terminal one, it is preferred that the siloxane component containing it exist in the polyorganosiloxane chain and not a terminal one, it is preferred that the containing siloxane component exist without being repeated or Repeat 2 to 20 times. In this case, even if a terminal group is a component of trimethylsiloxane or trimethylsilyl component, in which X4 or X5 denotes a methyl group, or modified siloxane component with dimethyl carboxy or dimethyl carboxy modified silyl component, in which X4 or X5 corresponds to a group modified with carboxy, in which X4 or X5 denotes a group modified with carboxy, no inconvenience is caused.

CH3 CH CH: CH CH X4 -S i O (S i O) e (S i O) f (S iO) g S i -X5 V CH3 CH: R X CH: (where X4, X5, X6: a methyl group or carboxy-modified group represented by -R7-COOH, at least one of them is said carboxy-modified group, R2: an alkyl group with 2 to 5 carbon atoms or group phenyl, R7: an alkylene group with 2 to 5 carbon atoms, e, f: e is an integer from 25 to 800, and f is an integer from 0 to 200, subject to 25 e + f 800, g: an integer from 0 to 20) In the carboxy-modified silicone used in the present invention, the siloxane component that does not contain any carboxy-modified group to form the polyorganosiloxane backbone can be an organosiloxane component divalent covered by f in formula V, as well as dimethylsiloxane component. The sum of the repetition numbers of these siloxane components is 25 to 800, but it is especially preferred that only dimethylsiloxane be used and that its repetition number be 100 to 400.

In the carboxy-modified silicone, the carboxy-modified group may be 2-carboxyethyl group, 3-carboxypropyl group or 3-carboxy-1-methylpropyl group, etc. Among them, the 3-carboxypropyl group can conveniently be used. In the present invention, it is also preferred to use an organic carboxylic acid as a dispersant. The organic carboxylic acids, which can be used in the present invention, include organic mono- to tetracarboxylic acids with 4 to 22 carbon atoms with a melting point of 50 to 220 ° C and their mixtures. These include (1) aliphatic monocarboxylic acids, (2) aliphatic dicarboxylic acids, (3) aliphatic dicarboxylic anhydrides, (4) aromatic di- to tetracarboxylic acids, and (5) aromatic di- to tetracarboxylic anhydrides. The aliphatic monocarboxylic acids include myristic acid, palmitic acid, stearic acid, aracaric acid, behenic acid, etc. The anhydrides and aliphatic dicarboxylic acids include succinic acid, succinic anhydride, maleic acid, maleic anhydride, adipic acid, sebacic acid, azelaic acid, etc. The aromatic aromatic di- and tetracarboxylic anhydrides and acids include phthalic anhydride, isophthalic acid, terephthalic acid, trimellitic acid, trimellitic anhydride, pyromellitic acid, pyromellitic anhydride, etc. Among them, aliphatic dicarboxylic acids and aliphatic dicarboxylic anhydrides, and maleic acid, adipic acid and succinic anhydride are especially preferred. In the present invention, any one or more, as a mixture, of said organic mono- to tetracarboxylic acids having a melting point of 50 to 220 ° C may also be used, and the melting point is measured according to method declared in JIS-K8004 (General Testing Methods for Reagents). When a mixture of organic mono- to tetracarboxylic acids is used, the proportions of respective organic carboxylic acids to be mixed can be appropriately decided to have a melting point of 50-220 ° C. The magnesium salt of fatty acid represented by the formula I used in the treatment agent of the present invention is any one or more as a mixture of magnesium salts of fatty acids with 12 to 22 carbon atoms. These include (1) magnesium salts of equal greater fatty acids in the number of carbon atoms, (2) magnesium salts of different higher fatty acids in the number of carbon atoms, (3) mixtures of the above. These include, for example, magnesium salt of the same fatty acid such as magnesium dilaurate, magnesium dimiristate, magnesium dipalmitate, magnesium distearate, magnesium diarylate or magnesium dibehenate, magnesium salt of different fatty acids, such as myristate. magnesium palmitate, magnesium stearate myristate or magnesium stearate palmitate, their mixtures, etc. Among them, magnesium dimiristate, magnesium dipalmitate, magnesium distearate and mixtures thereof are preferred. The treatment agent of the present invention is a dispersion in which a magnesium salt of greater fatty acid is dispersed colloidally in a silicone mixture., consisting of a silicone oil as a dispersion medium and a silicone modified as a dispersant, at a predetermined ratio. The weight ratio of the silicone oil and the modified silicone is modified silicone / silicone oil = 100 / 0.5 -100 / 4.5. A preferable range is 100 / 0.5 - 100/2. Additionally, the amount of the higher fatty acid magnesium salt is 1 to 10 parts by weight per 100 parts by weight of the silicone oil. A preferable range is 2 to 8"parts by weight The present invention is not especially limited in the method for dispersing the magnesium salt of higher fatty acid in the silicone mixture, for example, the magnesium salt of fatty acid greater and The silicone mixture is mixed at a predetermined ratio and wet milled to prepare a dispersion, in which the magnesium salt of the major fatty acid is dispersed colloidally.The grinding machine used for wet grinding can be a wet grinder known, such as a vertical ball mill, horizontal ball mill, sand grinder or colloid mill The present invention is not particularly limited in the particle size of the colloidal particles in the dispersion with the magnesium salt of higher fatty acid However, it is preferred that the average particle size measured according to the method described below is 0.1 to 0.5 μm. n thus obtained, in which the magnesium salt of higher fatty acid is colloidally dispersed in the silicone mixture is the treatment agent of the present invention. According to the present invention, the dispersion may additionally contain the following polyorganosiloxane. The polyorganosiloxane consists of the silicic anhydride component represented by the following formula VI and a monovalent organosiloxane component represented by the following formula VII as a terminal silyl group, as major components, and has silanol residues in the molecule.

[SiO4 / 2] • • • VI [R8 R9 R10 SiOi 2] • • • Vi l (where R8, R9, R10: respectively independently, an alkyl group with 1 to 3 carbon atoms or phenyl group) Such polyorganosiloxane it can be produced by known polyorganosiloxane production reactions, ie the silanol-forming reaction of a formable silanol compound (A) intended to form the silicic anhydride component represented by said formula VI and a formable silanol compound (B) intended to form the monovalent organosiloxane component represented by the formula VI, and the polycondensation reaction of the silanol compound produced by the silanol forming reaction. The polyorganosiloxane used in the present invention contains silanol residues in the molecule, as described above. In the polyorganosiloxane production reaction of the present invention, the polyorganosiloxane can be obtained by a siloxane chain growth reaction, by the polycondensation reaction of the silanol compound intended to form the silicic anhydride component and a terminal group forming reaction of silyl, by the condensation of the silanol groups existing in the siloxane chain and the formable silanol compound (B) intended to form the monovalent organosiloxane component. In this case, the silanol groups in the siloxane chain, which do not participate in the silyl end group forming reaction, remain as they are in the polyorganosiloxane molecule. In the present invention, the proportion of the remaining silanol groups can be adjusted by suitably selecting the reaction ratio of the formable silanol compound (A) and the formable silanol compound (B).

In the present invention, to achieve a remaining proportion of preferred silanol group, it is preferred that the molar ratio of the silanol formable compound (A) / formable silanol compound (B) is k / [8/5 x (K + 1 )] - k / [2/5 x (k + 1)] (where k is an integer of 1 or more). If the proportion of the silanol formable compound (A) and the formable silanol compound (B) is maintained in the above range, theoretically 20 to 80 mol% of the silanol groups existing in the polyorganosiloxane chain are blocked by terminal groups of silyl in the polyorganosiloxane production reaction. As for the starting material for forming said siloxane component, the silanol formable compounds, which can be used as the compound (A) intended to form the silicic anhydride component represented by the formula VI include tetraalkoxysilanes, such as tetramethoxysilane and tetraethoxysilane , tetrahalogenated silanes such as tetrachlorosilane, etc. The formable silanol compounds, which can be used as the compound (B) intended to form the monovalent siloxane component represented by the formula VII, include trialkylalkoxysilanes, such as trimethylmethoxysilane, triethylmethoxysilane, tripropylmethoxysilane and dimethylethylmethoxysilane, dialkylphenylalkoxysilanes containing a phenyl group, such as dimethylphenylmethoxysilane, trialkyl halogenated silanes, such as trimethylchlorosilane, etc. In the present invention, it is preferred that the polyorganosiloxane content be 0.5 to 5 parts by weight per 100 parts by weight of the silicone oil used as a dispersion medium. A particularly preferable range is 1 to 3 parts by weight. The polyorganosiloxane added to the dispersion with the magnesium salt of colloidally dispersed greater fatty acid, provides a remarkable effect to prevent the generation of static electricity, to elastic polyurethane fibers without deteriorating the initial properties. The treatment of the present invention is a dispersion obtained by colloidally dispersing a magnesium salt of greater fatty acid in a silicone mixture, consisting of a silicone oil as a dispersion medium and an amino-modified silicone., silicone modified with carboxyamide, silicone modified with amino and organic carboxylic acid, or silicone modified with amino and silicon modified with carboxy as a dispersant. The treatment agent can also be a solution with said polyorganosiloxane dissolved in such dispersion. In the colloidal dispersion of the magnesium salt of higher fatty acid as the treatment agent of the present invention, the electrification characteristic on the surfaces of the colloidal particles of the magnesium salt of higher fatty acid in the dispersion, is especially important to inhibit the cohesion and settlement of the magnesium salt of colloidally dispersed major fatty acid, to retain the stable dispersibility for a long time, and to manifest the desired performance in the production and processing of elastic polyurethane fibers. According to the electrification characteristic, the zeta potential measured according to the method described below must be in the range of -30 mV to -100 mV. The elastic polyurethane fibers to be treated in the present invention mean filaments or fibers made of a long chain polymer containing at least 85% by weight of a segmented polyurethane. The polymer contains two types of segments: (a) a segment of polyether ester, polyester, or long chain polyester as a smooth segment, and (b) a relatively short chain segment derived by the reaction between an isocyanate and an extender. chain diol or diamine, as a hard segment. Usually, an elastic polyurethane is produced by plugging a hydroxyl terminal soft segment precursor by an organic diisocyanate, to obtain a prepolymer, and extending the prepolymer chain by a diamine or diol. Typical polyether segments include those derived from tetramethylene glycol, 3-methyl-1,5-pentanediol, tetrahydrofuran, 3-methyltetrahydrofuran, etc. , and its copolymers. Among them, a polyether derivative of tetramethylglycol is preferred. Typical soft polyester segments include reaction products between (a) ethylene glycol, tetramethylene glycol or 2,2, -dimethyl-1,3-propanediol, etc. , and (b) a dibasic acid, such as an adipic acid or succinic acid, etc. The soft segment can also be a copolymer such as a polyether ester formed from a typical polyether and a typical polyester or from a polycarbonate diol, such as poly- (pentane-1, 5-carbonate) diol or poly- ( hexane-1, 6-carbonate) diol, etc. Typical organic diisocyanates suitable for producing the elastic polyurethane of the present invention include bis- (p-isocyanatophenyl) -methane (MDI), toluene diisocyanate (TDI), bis- (4-isocyanatocyclohexyl) -methane (PICM), diisocyanate hexamethylene, 3,3,5-trimethyl-5-methylenecyclohexyl diisocyanate, etc. Among them, MDI is especially preferred. Several diamines, such as ethylenediamine, 1,3-cyclohexanediamine and 1,4-cyclohexanediamine are suitable as chain extenders to form polyurethane urea. A chain terminator can be contained in the reaction mixture to help adjust the final molecular weight of polyurethane urea. Usually, the chain terminator is a monofunctional compound with active hydrogen, for example, diethylamine. The chain extender is not limited to the above amines and can also be a diol. The diols, which may be used herein, include ethylene glycol, 1,3-propanediol, 4-butanediol, neopentyl glycol, 1,2-propylene glycol, 1,4-cyclohexanedimethanol, 1,4-cyclohexanediol, 1,4-bis. (-hydroxyethoxy) benzene, bis (-hydroxyethyl) terephthalate, paraxylylenediol, etc. The diol chain extender is not limited to only one diol, and can also be formed by a plurality of diols. It can also be used together with a compound containing a hydroxyl group capable of reacting with an isocyanate group. In this case, the polyurethane can be obtained by, although not limited to, any known method, such as melt polymerization or solution polymerization. The polymerization formula is also not limited. For example, the polyurethane can be synthesized by allowing a polyol, a diisocyanate and a diol chain extender to react with one another simultaneously, or any other method can be used. The elastic polyurethane fibers may also contain an ultraviolet light absorber based on benzotriazole, weather resistant agent based on clogged amine, antioxidant based on clogged phenol, pigment such as titanium oxide or iron oxide, functional additives such as sulfate barium, zinc oxide, cesium oxide and silver ions. Suitable solvents for polyurethane solutions include N, N-dimethylacetamide (DMAc), dimethylformamide, dimethyl sulfoxide and N-methylpyrrolidone, and DMAc is the solvent used more generally. A polyurethane concentration of 30 to 40%, especially 35 to 38% (based on the total weight of the solution) is especially suitable for dry spinning of filaments. The elastic polyurethane fibers obtained by using a diol as the chain extender are usually produced by melt spinning, dry spinning or wet spinning, etc. , and the elastic polyurethane fibers obtained using an amine as the chain extender are usually produced by dry spinning. The method of spinning in the present invention is not especially limited, but wet spinning using a solvent is desirable. In order to render the treatment agent of the present invention deposited on the elastic polyurethane fibers, it is necessary to apply the treatment agent as it is without diluting it by means of a solvent, etc. , as pure oiled. The treatment agent can be deposited at any step after spinning before being wound as a package, in the step of rewinding the rolled package or in the warping step by a warping machine, etc. To be deposited, a known method such as a roller oiling method, a guide oiling method or a spray oiling method, etc. can be applied. The amount of the treatment agent deposited is 1 to 10% by weight relative to the weight of the elastic polyurethane fibers. A preferred range is 3 to 7% by weight. Suitable embodiments of the treating agent of the present invention include the following cases 1) to 32). 1) A treatment agent produced as a dispersion with colloidally dispersed magnesium distearate (F-1), by adding 5.0 parts by weight of a silicone oil (S-1) with a viscosity of 20 x 10"6 m2 / s 25 ° C as a dispersion medium and 0.7 parts by weight of a silicone modified with amino (A-1) with 180 as a, 0 as b, 1 as c, methyl groups as X1 and X2 and the group N- (2 -aminoethyl) -3-aminopropyl as X3 in formula II as a dispersant, incorporate the mixture at 20 to 35 ° C until it becomes homogeneous, and wet grind using a horizontal ball mill. 2) A treatment agent produced as a dispersion with magnesium distearate (F-1) dispersed colloidally, by adding 3.5 parts by weight of magnesium distearate (F-1) to a silicone mixture consisting of 95.3 parts by weight of a silicone oil (S-2) with a viscosity of 10 x 10"6 m2 / s at 25 ° C as a dispersion medium, and 1.2 parts by weight of a silicone modified with amino (A-2) with 1:10 as 1, 0 as b, 4 as c, methyl groups as X1 and X2 and group N- (2-aminoethyl) -3-aminopropyl as X3 in formula II, incorporate the mixture at 20 to 35 ° C until it becomes homogeneous, and wet milling using a horizontal ball mill 3) A treatment agent produced as a dispersion with a magnesium salt of mixed higher fatty acid (F-2) of palmitic acid / stearic acid = 40/60 molar) colloidally dispersed, by adding 3.7 parts by weight of a magnesium salt of mixed fatty acid (F-2) of palmitic acid / acid or stearic = 40/60 (molar ratio) to a silicone mixture consisting of 95.6 parts by weight of the silicone oil (S-1) as a dispersion medium and 0.7 parts by weight of an amino-modified silicone (A-3) ) with 50 as a, 5 as b, 1 as c, methyl groups as X 1 and X 2, group N- (2-aminoethyl) -3-aminopropyl as X 3 and n-propyl group as R 1 in the formula II as a dispersant, Incorporate the mixture at 20 to 35 ° C until it becomes homogeneous, and wet grind using a horizontal ball mill. 4) A treatment agent produced as a dispersion with colloidally dispersed magnesium stearate (F-1), by adding 5.0 parts by weight of magnesium distearate (F-1) to a silicone mixture, consisting of 94.3 parts by weight of the silicone oil (S-1) as a dispersion medium and 0.7 parts by weight of a silicone modified with amino (A-4) with 360 as a, 0 as b, 3 as c, methyl groups as X1 and X2 and group 3-aminopropyl as X3 in formula II as a dispersant, incorporate the mixture at 20 to 35 ° C until it becomes homogeneous, and wet grind using a horizontal ball mill. 5) A treatment agent produced as a dispersion with colloidally dispersed magnesium distearate (F-1), by adding 3.9 parts by weight of magnesium distearate (F-1) to a silicone mixture consisting of 95.4 parts by weight of the oil of silicone (S-1) as a dispersion medium and 0.7 parts by weight of an amino-modified silicone (A-5) with 180 as a, 50 com b, 1 as c, 3-aminopropyl groups as X 1, X 2 and X3 and phenyl group as R1 in formula II as a dispersing agent, incorporate the mixture at 20 to 35 ° C until it becomes homogeneous, and wet grind using a horizontal ball mill. 6) A treatment agent produced as a dispersion with colloidally dispersed magnesium distearate (F-1), by adding 3.9 parts by weight of magnesium distearate (F-1) to a silicone mixture consisting of 95.4 parts by weight of the oil of silicone (S-1) as a dispersion medium and 0.7 parts by weight of a silicone modified with amino (A-4) with 30 as a, 0 as b, 0 as c, 3-aminopropyl groups as X1 and X2 in Formula II as a dispersant, incorporate the mixture at 20 to 35 ° C until it becomes homogeneous, wet milling using a horizontal ball mill. 7) A treatment agent produced as a dispersion with colloidally dispersed magnesium distearate (F-1), by adding 3.5 parts by weight of magnesium distearate (F-1) to a silicone mixture consisting of 94.4 parts by weight of the oil of silicone (S-1) as a dispersion medium, 1.2 parts by weight of the amino-modified silicone (A-1) as a dispersing agent and 0.9 parts by weight of a polyorganosiloxane (PS-1) with silanol groups remaining obtained by silanol forming reaction and polycondensation reaction from tetramethylsilane / trimethylmethoxysilane = 50/50 (molar ratio), incorporate the mixture from 20 to 35 ° C until it becomes homogeneous, and wet milling using a horizontal ball mill. 8) A treatment agent produced as a dispersion with a magnesium salt of mixed higher fatty acid (F-2) of palmitic acid / stearic acid = 40/60 (molar ratio) colloidally dispersed, by adding 3.7 parts by weight of a Magnesium salt of mixed higher fatty acid (F-2) of palmitic acid / stearic acid = 40/60 (molar ratio) to a silicone mixture consisting of 93.0 parts by weight of the silicone oil as a dispersion medium, 1.3 parts by weight of the silicone modified with amino (A-1) as a dispersant, and 2.0 parts by weight of a polyorganosiloxane (PS-2) with remaining silanol groups obtained by silanol forming reaction and polycondensation reaction from tetramethylsilane / tripropylmethoxysilane = 65/35 (molar ratio), add the mixture at 20 to 35 ° C until it becomes homogeneous, and wet grind using a horizontal ball mill. 9) A treatment agent (T-1) produced as a dispersion with colloidally dispersed magnesium distearate (F-1), by adding 5.0 parts by weight of magnesium distearate (F-1) to a silicone mixture consisting of 94.3 parts by weight of a silicone oil (S-1) with a viscosity of 20 x 10'6 m2 / s at 25 ° C as a dispersion medium and 0.7 parts by weight of a silicone modified with carboxyamide (A-1) with 80 as a, 0 as b and c, methyl groups such as X1 and X2 and group N- [N- (4-carboxybutylcarbonyl) -2-aminoethyl] -3-aminopropyl as X3 in the formula II1 as a dispersant, incorporate the mixture of 20 to 35 ° C until it becomes homogeneous, and wet grind using a horizontal ball mill. 10) A treatment agent (T-2) produced as a dispersion with colloidally dispersed magnesium distearate (F-1), by adding 3.5 parts by weight of magnesium distearate (F-1) to a silicone mixture consisting of 95.3 parts by weight of a silicone oil (S-2) with a viscosity of 10 x 10"6 m2 / s at 25 ° C as a dispersion medium and 1.2 parts by weight of a silicone modified with carboxyamide (A-2) ) with 150 as a, 0 as b, 4 as c, 5 as d, methyl groups as X1 and X2, group N- [N- (4-carboxybutylcarbonyl) -2-aminoethyl-3-aminopropyl as X3 and group N- (2-aminoethyl) -3-aminopropyl as R2 in formula II as a dispersant, incorporate the mixture at 20 to 35 ° C until it becomes homogeneous, and wet grind using a horizontal ball mill. 1 1) An agent of treatment (T-3) produced as a dispersion with a magnesium salt of mixed higher fatty acid (F-2) of palmitic acid / stearic acid = 40/60 (molar ratio) colloidally dispersed rsa, by adding 3.7 parts of a magnesium salt of mixed higher fatty acid (F-2) of palmitic acid / stearic acid = 40/60 (molar ratio) to a silicone mixture consisting of 95.6 parts by weight of silicone oil (S-1) as a dispersion medium and 0.7 parts by weight of a silicone modified with carboxyamide (A-3) with 300 as a, 5 as b, 1 as c, 10 as d, methyl groups as X1 and X2, N- [N- (4-carboxybutylcarbonyl) -2-aminoethyl] -3-aminopropyl group as X3, phenyl group as R1 and N- (2-aminoethyl) -3-aminopropyl group as R2, incorporate the mixture until it becomes homogeneous, and wet milling using a horizontal ball mill. 12) A treatment agent (T-4) produced as a dispersion with colloidally dispersed magnesium distearate (F-1), by adding 5.0 parts by weight of magnesium distearate (F-1) to a silicone mixture consisting of 94.3 parts by weight of the silicone oil (S-1) as a dispersion medium and 0.7 parts by weight of a silicone modified with carboxyamide (A-4) with 570 as a, 0 as b, 3 as c, 15 as d, methyl groups such as X1 and X2, N- [N- (4-carboxybutylcarbonyl) -2-aminoethyl] -3-aminopropyl group as X3 and N- (2-aminoethyl) -3-aminopropyl group as R2, incorporate the mixture until become homogeneous, and wet grind using a horizontal ball mill. 13) A treatment agent (T-4) produced as a dispersion with colloidally dispersed magnesium distearate (F-1), by adding 3.9 parts by weight of magnesium distearate (F-1) to a silicone mixture consisting of 95.4 parts by weight of silicone oil (S-1) as a dispersing agent and 0.7 parts by weight of a silicone modified with carboxyamide (A-5) with 150 as a, 0 as b, c and y N- (2-carboxyethylcarbonyl) groups ) -3-aminoproyl as X1 and X2, incorporate the mixture until it becomes homogeneous and wet grind using a horizontal ball mill. 14) A treatment agent (T-6) produced as a dispersion with colloidally dispersed magnesium distearate (F-1), by adding 3.9 parts by weight of magnesium distearate (F-1) to a silicone mixture consisting of 95.4 parts by weight of silicon oil (S-1) as a dispersion medium and 0.7 parts by weight of a silicone modified with carboxyamide (A-4) with 160 as a, 0 as b, 1 as c, 9 as d, N- (2-carboxyethylcarbonyl) -3-aminopropyl groups as X1, X2 and X3 and 3-aminopropyl group as R2, incorporate the mixture at 20 to 35 ° C until become homogeneous, and wet grind using a horizontal ball mill. 15) A treatment agent (T-4) produced as a dispersion with colloidally dispersed magnesium distearate (F-1), by adding 3.5 parts by weight of magnesium distearate (F-1) to a silicone mixture consisting of 94.4 parts by weight of silicone oil (S-1) as a dispersion medium, 1.2 parts by weight of silicone modified with carboxyamide (A-1) as a dispersing agent and 0.9 parts by weight of a polyorganosiloxane (PS-) 1) with remaining silanol groups obtained by silanol forming reaction and polycondensation reaction from tetramethylsilane / trimethylmethoxysilane = 50/50 (molar ratio), incorporating the mixture from 20 to 35CC until it becomes homogeneous, and wet milling using a horizontal ball mill. 16) A treatment agent (T-8) produced as a dispersion with a magnesium salt of mixed higher fatty acid (F-2) of palmitic acid / stearic acid = 40/60 (molar ratio), by adding 3.7 parts in weight of a magnesium salt of mixed higher fatty acid (F-2) of palmitic acid / stearic acid = 40/60 to a silicone mixture consisting of 93.0 parts by weight of the silicone oil (S-2) as a medium of dispersion, 1.3 parts by weight of the carboxyamide modified silicone (A-1) as a dispersing agent and 2.0 parts by weight of a polyorganosiloxane (PS-2) obtained by silanol forming reaction and polycondensation reaction from tetramethylsilane / tripropylmethoxysilane = 35/65 (molar ratio), incorporate the mixture at 20 to 35 ° C until it becomes homogeneous, and wet grind using a horizontal ball mill. 17) A treatment agent (T-1) produced as a dispersion with colloidally dispersed magnesium distearate (F-1), by adding 5.0 parts of magnesium distearate to a silicone mixture consisting of 94.2 parts by weight of an oil of magnesium. silicone (S-1) with a viscosity of 20 x 10'6 m / s at 25 ° C as a dispersion medium, 0.7 parts by weight of an amino-modified silicone (A-1) with 180 as a, 0 as b , 1 as c, methyl groups as X1 and X2 and group N- (2-aminoethyl) -3-aminopropyl as X3 in formula II as a dispersing agent, and 0.1 parts by weight of succinic anhydride, incorporate the mixture of 20 at 35 ° C until it becomes homogeneous, and wet grind using a horizontal ball mill. 18) A treatment agent (T-2) produced as a dispersion with colloidally dispersed magnesium distearate (F-1), by adding 3.5 parts by weight of magnesium distearate (F-1) to a silicone mixture consisting of 95.2 parts by weight of a silicone oil (S-2) with a viscosity of 10 x 10"6 m2 / s at 25 ° C as a dispersion medium, 1.2 parts by weight of a silicone modified with amino (A-2) with 10 as a, 0 as b, 4 as c, methyl groups as X1 and X2 and group N- (2-aminoethyl) -3-aminopropyl as X3 in formula II as a dispersing agent and 0.1 parts by weight of anhydride succínico, incorporate the mixture of 20 to 35 ° C until it becomes homogeneous, and wet milling using a horizontal ball mill 19) A treatment agent (T-3) produced as a dispersion with magnesium salt of fatty acid higher mixed (F-2) of palmitic acid / stearic acid = 40/60 (molar ratio) colloidally dispersed, by adding 3.7 parts by weight of A magnesium salt of mixed fatty acid (F-2) of palmitic acid / stearic acid = 40/60 (molar ratio) to a silicone mixture consisting of 95.5 parts by weight of silicone oil (S-1) as a dispersion medium, 0.7 parts by weight of a silicone modified with amino (A-3) with 50 as a, 5 as b, 1 as c, methyl groups as X1 and X2, group N- (2-aminoethyl) -3- aminopropyl as X3 and n-propyl group as R1 in formula II as a dispersant and 0.1 parts by weight of succinic anhydride, incorporate the mixture at 20 to 35 ° C until it becomes homogeneous, and wet grind using a ball mill horizontal. 18) A treatment agent (T-2) produced as a dispersion with colloidally dispersed magnesium distearate (F-1), by adding 3.5 parts by weight of magnesium distearate (F-1) to a silicone mixture consisting of 95.2 parts by weight of a silicone oil (S-2) with a viscosity of 10 x 10"6 m2 / s at 25 ° C as a dispersion medium, 1.2 parts by weight of a silicone modified with amino (A-2) with 10 as a, 0 as b, 4 as c, methyl groups as X1 and X2 and group N- (2-aminoethyl) -3-aminopropyl as X3 in formula II as a dispersing agent and 0.1 parts by weight of anhydride succínico, incorporate the mixture of 20 to 35 ° C until it becomes homogeneous, and wet milling using a horizontal ball mill 19) A treatment agent (T-3) produced as a dispersion with magnesium salt of fatty acid Mixed major (F-2) of palmitic acid / stearic acid = 40/60 (molar ratio) colloidally dispersed, by adding 3.7 parts by weight of a magnesium salt of mixed higher fatty acid (F-2) of palmitic acid / stearic acid = 40/60 (molar ratio) to a silicone mixture consisting of 95.5 parts by weight of oil silicone (S-1) as a dispersion medium, 0.7 parts by weight of a silicone modified with amino (A-3) with 50 as a, 5 as b, 1 as c, methyl groups as X1 and X2, group N- (2-aminoethyl) -3-aminopropyl as X3 and n-propyl group as R1 in formula II as a dispersant and 0.1 parts by weight of succinic anhydride, incorporate the mixture at 20 to 35 ° C until it becomes homogeneous, and Wet grind using a horizontal ball mill.

) A treatment agent (T-4) produced as a dispersion with magnesium distearate (F-1) colloidally dispersed, by adding 5.0 parts of magnesium distearate (F-1) to a silicone mixture consisting of 94.2 parts in weight of the silicone oil (S-1) as a dispersion medium, 0.7 parts by weight of an amino-modified silicone (A-4) with 360 as a, 0 as b, 3 as c, methyl groups as X1 and X2 and 3-aminopropyl group as X3 in formula II as a dispersant and 0.1 part by weight of maleic acid, incorporating the mixture at 20 to 35 ° C until it becomes homogeneous, and wet milling using a horizontal ball mill. 21) A treatment agent (T-5) produced as a dispersion with colloidally dispersed magnesium distearate (F-1), by adding 3.9 parts by weight of magnesium distearate (F-1) to a silicone mixture consisting of 95.2 parts by weight of silicone oil (S-1) as a dispersion medium, 0.7 parts by weight of an amino-modified silicone (A-5) with 180 as a, 50 as b, 1 as c, 3-aminopropyl groups as X1, X2 and X3 and phenyl group as R1 and 0.2 parts by weight of adipic acid, incorporate the mixture at 20 to 35 ° C until it becomes homogeneous, and wet grind using a horizontal ball mill. 22) A treatment agent (T-6) produced as a dispersion with colloidally dispersed magnesium distearate (F-1), by adding 3.9 parts by weight of magnesium distearate (F-1) to a silicone mixture consisting of 94.9 parts by weight of the silicone oil (S-1) as a dispersion medium, 0.7 parts by weight of an amino-modified silicone (A-6) with 30 as a, 0 as b, 0 as c and 3-aminopropyl groups as X1 and X2 in formula ll as a dispersing agent and 0.5 parts by weight of stearic acid, incorporate the mixture at 20 to 35 ° C until it becomes homogeneous, and wet grind using a horizontal ball mill. 23) A treatment agent (T-7) produced as a dispersion with colloidally dispersed magnesium distearate (F-1), by adding 4.0 parts by weight of magnesium distearate (F-1) to a silicone mixture consisting of 94.2 parts by weight of the silicone oil (S-1) as a dispersion medium, 0.7 parts by weight of the amino modified amino (A-1) as a dispersing agent, 0.1 part by weight of succinic anhydride and 1.0 parts by weight of a polyorganosiloxane (PS-1) with remaining silanol groups obtained by siianol-forming reaction and polycondensation reaction from tetramethylsilane / trimethylmethoxysilane = 50/50 (molar ratio), incorporate the mixture at 20 to 35 ° C until return homogeneous, and wet grind using a horizontal ball mill. 24) A treatment agent (T-8) with a magnesium salt of mixed fatty acid (F-2) of palmitic acid / stearic acid = 40/60 (molar ratio) colloidally dispersed, by adding 2.0 parts by weight of a magnesium salt of mixed higher fatty acid (F-2) of palmitic acid / stearic acid = 40/60 (molar ratio) to a silicone mixture consisting of 92.5 parts by weight of silicone oil (S-2) as a dispersion medium, 1.2 parts by weight of the amino modified silicone (A-1) as a dispersing agent, 0.1 part by weight of succinic anhydride and 1.5 parts by weight of a polyorganosiloxane (PS-2) with remaining silanol groups obtained by the silanol forming reaction and polycondensation reaction from tetramethylsilane / tripropylmethoxysilane = 35/65 (molar ratio), incorporate the mixture at 20 to 35 ° C until it becomes homogeneous, and wet grind using a horizontal ball mill. 25) A treatment agent (T-1) with colloidally dispersed magnesium distearate (F-1), by adding 5.0 parts by weight of magnesium distearate (F-1) to a silicone mixture consisting of 94.2 parts by weight of a silicone oil (S-1) with a viscosity of 20 x 10"6 m2 / s at 25 ° C as a dispersion medium, 0.7 parts by weight of a silicone modified with amino (A-1) with 180 as a, 0 as b, 1 as c, methyl groups as X1 and X2 and group N- (2-aminoethyl) -3-aminopropyl as X3 in formula II as a dispersant and 0.1 part by weight of a carboxy-modified silicone (B -1) with 30 as e, 0 as f, 2 as g, methyl groups as X4 and X5 and group 3-carboxypropyl as X6 in formula V, incorporate the mixture at 20 to 35 ° C until it becomes homogeneous, and Wet grind using a horizontal ball mill. 26) A treatment agent (T-2) produced as a dispersion with magnesium distearate (F-1) colloidally dispersed, by adding 3.5 parts of magnesium distearate (F-1) to a silicon mixture consisting of 95.2 parts in weight of a silicone oil (S-2) with a viscosity of 10 x 10"6 m2 / s at 25 ° C as a dispersion medium, 1.2 parts by weight of a silicone modified with amino (A-2) with 110 as a, 0 as b, 4 as c, methyl groups as X1 and X2 and group N- (2-aminoethyl) -3-aminopropyl as X3 in formula II as a dispersant and 0.1 part by weight of a carboxy modified silicone ( B-2) as 300 as e, 0 as f, 9 as g, methyl groups as X4 and X5 and group 3-carboxypropyl as X6 in formula V, incorporate the mixture at 20 to 35 ° C until it becomes homogeneous, and wet milling using a horizontal ball mill 27) A treatment agent (T-3) produced as a dispersion with a magnesium salt of mixed higher fatty acid (F-2) of p-acid. amylica / stearic acid = 40/60 (molar ratio) colloidally dispersed, by adding 3.7 parts by weight of a magnesium salt of mixed higher fatty acid (F-2) of palmitic acid / stearic acid = 40/60 (molar ratio) to a silicone mixture consisting of 95.6 parts by weight of the silicone oil (S-1) as a dispersion medium, 0.7 parts by weight of an amino-modified silicone (A-3) with 50 as a, 5 as b, 1 as c, methyl groups such as X1 and X2, N- (2-aminoethyl) -3-aminopropyl group as X3 and n-propyl group as R1 in formula II as a dispersant and 0.1 part by weight of a carboxy-modified silicone (B-3) with 400 as e, 350 as f, 18 as g, methyl groups as X4 and X5, group 3-carboxypropyl as X6 and n-propyl group as R2 in formula V, incorporate the mixture from 20 to 35 ° C until it becomes homogeneous, and wet grind using a horizontal ball mill. 28) A treatment agent (T-4) produced as a dispersion with colloidally dispersed magnesium distearate (F-1), by adding 5.0 parts by weight of magnesium distearate (F-1) to a silicone mixture consisting of 94.2 parts by weight of the silicone oil (S-1) as a dispersion medium, 0.7 parts by weight of an amino-modified silicone (A-4) with 360 as a, 0 as b, 3 as c, methyl groups as X 1 and X2 and 3-aminopropyl group as X3 in formula II as a dispersant, 0.1 part by weight of a carboxy-modified silicone (B-4) with 50 as e, 0 as f, 5 as g, methyl groups as X4 and Xs and 3-carboxypropyl group as X6 in formula V, incorporate the mixture from 20 to 35CC until it becomes homogeneous, and wet-grind using a horizontal ball mill. 29) A treatment agent (T-5) produced as a dispersion with colloidally dispersed magnesium distearate (F-1), by adding 3.9 parts by weight of magnesium distearate (F-1) to a silicone mixture consisting of 95.2 parts by weight of the silicone oil (S-1) as a dispersion medium, 0.7 parts by weight of an amino-modified silicone (A-5) with 180 as a, 50 as b, 2 as c, 3-aminopropyl groups as X1, X2 and X3 and phenyl group as R1 in formula II as a dispersing agent, and 0.2 parts by weight of a silicon modified with carboxy (B-5) with 200 as e, 10 as f, 0 as g, 3-carboxypropyl groups such as X4 and X5, and phenyl group as R2 in formula V, incorporate the mixture at 20 to 35 ° C until it becomes homogeneous, and wet-grind using a horizontal ball mill. 30) A treatment agent (T-6) produced as a dispersion with magnesium distearate (F-1) colloidally dispersed, by adding 3.9 parts by weight of magnesium distearate (F-1) to a silicone mixture consisting of 94.7 parts by weight of silicon oil (S-1) as a dispersion medium, 0.7 parts by weight of a modified silicone with amino (A-6) with 30 as a, 0 as b, 0 as c, 3-aminopropyl groups as X1 and X2 in formula II as a dispersant and 0.7 parts by weight of a carboxy-modified silicone (B-6) ) with 200 as e, 0 as f, 2 as g and 3-carboxypropyl groups as X4, X5 and X6 in formula V, incorporate the mixture at 20 to 35 ° C until it becomes homogeneous, and wet grind using a mill of horizontal balls. 31) A treatment agent (T-7) produced as a dispersion with colloidally dispersed magnesium distearate (F-1), by adding 3.5 parts by weight of magnesium distearate (F-1) to a silicone mixture consisting of 94.36 parts by weight of the silicon oil (S-1) as a dispersion medium, 1.2 parts by weight of the silicone modified with amino (A-1) as a dispersing agent and 0.9 parts by weight of a polyorganosiloxane (PS-1) with remaining silanol groups obtained by silanol forming reaction and polycondensation reaction from tetramethylsilane / trimethylmethoxysilane = 50/50 (molar ratio), incorporate the mixture at 20 to 35 ° C until it becomes homogeneous, and wet grind using a horizontal ball mill. 32) A treatment agent (T-8) produced as a dispersion with a magnesium salt of mixed higher fatty acid (F-2) of palmitic acid / stearic acid = 40/60 (molar ratio) colloidally dispersed, when adding 3.7 parts by weight of a magnesium salt of mixed higher fatty acid (F-2) of palmitic acid / stearic acid = 40/60 (molar ratio) to a silicone mixture consisting of 92.5 parts by weight of the silicone oil (S- 2) as a dispersion medium, 1.3 parts by weight of the silicone modified with amino (A-1) as a dispersant and 2. parts by weight of a polyorganosiloxane (PS-2) with remaining silanol groups obtained by reaction forming silanol and polycondensation reaction from tetramethylsilane / tripropylmethoxysilane = 35/65 (molar ratio), incorporate the mixture at 20 to 35 ° C until it becomes homogeneous, and wet grind using a horizontal ball mill. Suitable embodiments of the elastic polyurethane fibers treated by the treating agent according to the present invention include the following cases 33) to 44). 33) 2000 g of polytetramethyl glycol with a molecular weight of 2000 and 400 g of bis- (p-isocyanatophenyl) -methane (MDI) were supplied in a nitrogen-sealed stirring reactor to reach an addition ratio of 1.60, and were caused that will react with each other at 90 ° C for 3 hours, to obtain a clogged glycol. Then, 699 g of the clogged glycol was dissolved in 1093 g of N, N-dimethylacetamide (DMAC), and additionally at room temperature, a mixture consisting of 1 g of ethylenediamine was added as a chain extender, 1.6 g of diethylamine as a chain terminator and 195 DMAC in a high speed agitation machine, for chain extension, to obtain a polymer solution with a solids content of 35.6% by weight. Titanium oxide, a weather resistant agent based on clogged amine and an antioxidant based on clogged phenol, were added to the polymer solution to achieve contents of 4.7% by weight, 3.0% by weight and 1.2% by weight respectively, and the mixture was made to obtain a homogenous polymer mixture. The polymer mixture obtained was spun into a 40-denier elastic yarn consisting of four fibers by a known dry spinning method used for spandex, and the treatment agent of said 1) was pure oiled by an oiling roller before the winding, to obtain elastic polyurethane fibers with said treatment deposited by 6.5% by weight based on the weight of the elastic polyurethane fibers. 34) The treatment agent of said 2) pure oiling to a 40-denier elastic yarn consisting of four fibers obtained as described in said 33), according to the same method as described in 33), to obtain elastic polyurethane fibers with the treatment deposited by 3.5% by weight based on the weight of the elastic polyurethane fibers. 35) The treating agent of any of said 3) to 8) was oiled pure to a 40-denier elastic yarn consisting of four fibers obtained as described in the above described 33), according to the same method as described in 33), to obtain elastic polyurethane fibers with the treatment deposited by 5% by weight based on the weight of the elastic polyurethane fibers, respectively. 36) A mixture of bis- (p-isocyanatophenyl) -methane / tetramethylene ether glycol (number average molecular weight of 1800) = 1.58 / 1 (molar ratio) was reacted at 90 ° C for 3 hours according to a method conventional, to prepare a clogged glycol. The clogged glycol was diluted by N, N-dimethylacetamide (DMAc). Then a DMAc solution containing ethylenediamine and diethylamine was added to the plugged glycol DMAc solution, and the mixture was stirred at room temperature using a high speed agitation machine, for chain extension. In addition, DMAc was added to obtain a DMAc solution with approximately 35% by weight of a dissolved polymer. Titanium oxide, a weather resistant agent based on clogged amine and a phenol-based antioxidant clogged to the obtained polymer DMAc solution, were added to achieve 4.7 wt%, 3.0 wt% and 1.2 wt% respectively, based on the weight of the polymer, and the mixture was stirred to obtain a homogenous polymer mixture. The polymer mixture obtained was spun into a 40-denier elastic yarn consisting of four fibers by a conventional dry spinning method for spandex, and the treatment of said 9) was pure oiled by an oiling roll before winding, to obtain elastic polyurethane fibers with the treatment deposited by 6.5% by weight based on the weight of the elastic polyurethane fibers. 37) The treatment agent of said 10) was oiled pure to a 40-denier elastic yarn consisting of four fibers obtained as described in said 36), according to the same method as described in said 36), to obtain fibers of elastic polyurethane with the treatment deposited by 3.5% by weight based on the weight of the elastic polyurethane fibers. 38) The treatment agent of any of said 1 1) to 16) was oiled pure to a 40-denier elastic yarn consisting of four fibers obtained as described in said 36), according to the same method as described in said 36), to obtain elastic polyurethane fibers with the treatment deposited by 5% by weight based on the weight of the elastic polyurethane fibers, respectively. 39) The treatment agent of said 17) was oiled pure to a 40-denier elastic yarn consisting of four fibers obtained as described in said 36), according to the same method as described in said 36), to obtain fibers of elastic polyurethane with the treatment deposited by 6.5% by weight based on the weight of the elastic polyurethane fibers. 40) The treatment agent of said 18) was oiled pure to a 40-denier elastic yarn consisting of four fibers obtained as described in said 36), according to the same method as described in said 36), to obtain fibers of elastic polyurethane with the treatment deposited by 3.5% by weight based on the weight of the elastic polyurethane fibers. 41) The treatment agent of any of said 19) to 24) was oiled pure to a 40-denier elastic yarn consisting of four fibers obtained as described in said 36), according to the same method as described in said 36 ), to obtain elastic polyurethane fibers with the treatment deposited by 5.0% by weight, based on the weight of the elastic polyurethane fibers, respectively. 42) The treatment agent of said 25) was oiled pure to a 40-denier elastic yarn consisting of four fibers obtained as described in said 36), according to the same method as described in said 36), to obtain fibers of elastic polyurethane with the treatment deposited by 6.5% by weight, based on the weight of the elastic polyurethane fibers. 43) The treatment agent of said 26) was oiled pure to a 40-denier elastic yarn consisting of four fibers obtained as described in said 36), according to the same method as described in said 36), to obtain fibers of elastic polyurethane with the treatment deposited by 3.5% by weight, based on the weight of the elastic polyurethane fibers. 44) The treating agent of any of said 27) to 32) was oiled pure to a 40-denier elastic yarn consisting of four fibers obtained as described in said 36), according to the same method as described in said 36 ), to obtain elastic polyurethane fibers with the treatment deposited by 5.0% by weight, based on the weight of the elastic polyurethane fibers, respectively.

EXAMPLES Examples are described below to show the constitution and effects of the present invention in a more specific manner. However, the present invention is not limited thereto. In the following examples, "parts" means "parts by weight" and "%" means "% by weight" unless declared otherwise.

Example 1: Class 1 test (preparation of treatment agents) Preparation of treatment agent T-1 5.0 parts of magnesium stearate (F-1) were added to a silicone mixture consisting of 94.3 parts of a silicone oil (S- 1) with a viscosity of 20 x 10"6 m2 / s at 25 ° C as a dispersion medium and 0.7 parts of the amino-modified silicone (A-1) shown in Table 1, and the mixture was stirred from 20 to 35 ° C until it became homogeneous, and it was wet milled using a horizontal ball mill, to prepare a dispersion with colloidally dispersed magnesium distearate (F-1), as a T-1 treatment agent.

Preparation of treatment agents T-2 to T-6 and t-1 to t-8 Treatment agents T-2 to T-6 and t-1 to t-8 were prepared as described to prepare the treatment agent T-1 The details of these treatment agents are shown in Tables 2 and 3.

Preparation of T-7 treatment agent 3.5 parts of magnesium distearate (F-1) was added to a silicone mixture consisting of 94.4 parts of silicone oil (S-1) as a dispersion medium, 1.2 parts of the modified silicone with amino (A-1) as a dispersant and 0.9 parts of the polyorganosiloxane (PS-1) shown below in Table 2, and the mixture was stirred at 20 to 35 ° C until it became homogeneous, and was wet milled using a horizontal ball mill, for preparing the treatment agent T-7 with magnesium distearate (F-1) colloidally dispersed.

Preparation of the treatment agent T-8 The treatment agent T-8 was prepared as described to prepare the treatment agent T-7. The details are shown in Table 2.

Preparation of the treatment agent t-9 1.5 parts of magnesium distearate (F-1) was added to 98.5 parts of the silicone oil (S-1) used as a dispersion medium, and the mixture was stirred at 20 to 35 °. C until it became homogeneous and wet milled using a horizontal ball mill, to prepare the t-9 treatment agent with magnesium distearate (F-1) colloidally dispersed. [Table 1] In Table 1, AM-1: -C3H6 -NH-C2H4 -NH2 AM-2: -C3H6 -NH2 [Table 2] In Table 2, S / A: Proportion of silicon oil / amino-modified silyl (by weight) S / F: Parts of magnesium sai of major fatty acid per 100 parts of silicone oil S / PS: Parts of polyorganosifoxan per 100 parts of S-1 oil: Pol? dimet? ls? loxane with a viscosity of 20 x 10"s m2 / s 25CC S-2: Polydimethylsiloxane with a viscosity of 10 x 10" 6 m2 / s at 25sC F -1: Magnesium distearate F-2: Magnesium salt of mixed fatty acid of paymitic acid / stearic acid = 40/60 (mofar ratio) PS-1: pofiorgaposifoxapo with remaining silanoyl groups, produced from tetramethylfitan / trimethymethoxysifan = 25/75 (mofar proportion) (fa characteristic absorption band of siianoí group 3750 cm * 1 was detected by FT-fR) PS-2: pofiorganosifoxane with remaining sifanof groups, produced from tetrametifsifano / tripropifmethoxysilane = 35/65 ( mofar proportion) (ía absorption band characteristic def group sitan of 3750 cm "1 was detected by FT-fR) [Tabia 3] In Table 3, S-1 - S-3, F-1, F-2, A-1, A-2, PS-1: As declared for F Tabia 2. f-1: Magnesium dicapriiate Cephase 2 test (evapuation and measurement of treatment agents) The dispersion stability, average particle sizes and potencies zeta of fos treatment agents prepared in F Test Phase 1 were evaluated and measured as described below. The results are shown in Table 4. • Evaluation of dispersion stability 100 mf of a treatment agent was supplied in a glass cylinder measuring 100 ml with a stopper, and allowed to remain at 25CC for 1 week or 1 month. One week or one month later, the appearance of the treatment agent was observed and evaluated according to the following criteria: AA: State dispersed homogeneously without any change in appearance A: A transparent layer of less than 5 mf was formed. B: A clear layer of 5 mf or more was formed. C: Precipitate formed.

Measurement of Average Particle Size A sample was prepared by diffusing a treatment agent prepared in Phase C Test 1 to create a magnesium fatty acid concentration greater than 1000 ppm using the same dispersion medium as used to prepare eff treatment agent. Ef average particle size of the sample in reference to area was measured using a supercentrifuge automatic particle size distribution measuring instrument (CAPA-700 produced by Horiba Seisakusho).

• Measurement of zeta potential A sample was prepared by diluting a treatment agent prepared in the Class 1 Test to achieve a magnesium salt concentration of fatty acid greater than 80 ppm using the same dispersion medium as that used to prepare the agent of treatment, and disperse the diluted treatment agent by means of an ultrasonic bath for 30 seconds. The zeta potential of the sample was measured at 25-C using a zeta potential measuring instrument (Model 501 produced by Penkem).

[Table 4] Test Class 3 (Application of treatment agents to elastic polyurethane fibers, and evaluation) • Production of elastic polyurethane fibers and method to apply treatment agents 2 g of polytetramethyl ether glycol with a molecular weight of 200 and 400 g of bis- (p-isocyanatophenyl) -methane (MDl) in a stirred reactor with nitrogen, to achieve an addition ratio of 1.60, and the reaction was carried out at 90 ° C for 3 hours, to obtain a clogged glycol. Then, 699 g of the capped glycol was dissolved in 1093 g of N, N-dimethylacetamide (DMAC), and at room temperature, a mixture consisting of 1 g of ethylenediamine as a chain extender, 1.6 g of diethylamine was added as a chain terminator and 195 g of DMAC by means of a high speed agitation machine, for chain extension, to obtain a polymer with a solid content of 35.6% by weight. Titanium oxide, weather resistant agent based on clogged amine and an antioxidant based on clogged phenol were added to the polymer solution to achieve 4.7% by weight, 3.0% by weight and 1.2% by weight respectively, based on the weight of the polymer solid. The mixture was stirred to obtain a homogeneous polymer mixture. The polymer mixture obtained was spun into a 40-denier elastic yarn consisting of four fibers by a known dry spinning method used for spandex, and a treatment was applied by an oiling roll prior to winding. The wire was wound around a 58 mm long cylindrical paper tube via a transverse guide to give a 38 mm winding width at a winding speed of about 600 m / min. The amount of the deposited treatment agent was controlled in reference to the weight of the yarn when adjusting the speed of the oiling roller. To evaluate the rolling capacity, a 500 g winding sample was used, and for another evaluation, a sample of 100 g winding was used. The amount of the deposited treatment agent was measured using n-hexane as an extraction solvent according to JIS-L1073 (Synthetic Fiber and Filament Yam Testing Methods). • Evaluation and measurement • Evaluation of fiber friction coefficient Using a measuring instrument shown in Fig. 1, while providing an initial load for a weight 1, a running thread 2 after a free roller 5, was twisted twice using the free rollers 6, 7 and 8. An initial tension (Ti) of 2 g (detected by a detector 3) was applied, and the yarn was driven to run at a low speed of 0.25 m / min, to measure The secondary voltage (T2) (detected by a detector 4), to calculate the coefficient of friction from the following formula: Coefficient of friction = (T2 - Ti) -s- (T2 + T • Evaluation of the winding shape Fig. 3 is an illustration showing the winding shape of an elastic polyurethane yarn. In general, an elastic polyurethane yarn 15, wound around a cylindrical paper tube 14, extends in the state of being wound. Thus, near the core, the adjacent wire segments are likely to slide and press in the direction perpendicular to the winding direction in the winding form. If this tendency is too intense, the width of the winding B near the core approaches the cylindrical paper tube A, in order to diminish the winding concession 16 called free space, bothering the handling in the subsequent steps. Additionally, when the elastic polyurethane yarn is installed in an apparatus for advanced processing, the yarn will most likely directly touch the apparatus. Thus, the free space shown in Fig. 3 is an important factor. For this reason, to evaluate the form of winding, the length of the free space was measured, to calculate the free space from the following formula. The calculated value was evaluated with reference to the following criteria. Free space = (A - B) / 2 A: Free space was 4 mm or more. B: The free space was 2 mm to less than 4 mm. C: The free space was less than 2 mm.

• Evaluation of the winding capacity In a winding capacity measuring instrument shown in Fig. 4, a first driving roller 1 1 and a first free roller 9 kept in contact with it, form a feeder, and a second driving roller 12 and a second free roller 10 kept in contact with it, form an embobinator. The embobinador was installed away from the feeder by 20 cm in horizontal direction. In the first handling roller 1 1, a pack 13 with 500 g of embossed treated polyurethane elastic fibers was installed and unwrapped to a wire winding thickness of 2 mm to make a sample. From the sample, the treated elastic polyurethane fibers were wound around the second handling roller 12. The feeding speed of the elastic polyurethane fibers treated from the first handling roller 1 1 was set at 50 m / min, and on the other hand, the winding speed of the elastic polyurethane fibers treated around the second handling roller 12, was gradually raised from 50 m / min, to forcefully unwind the elastic polyurethane fibers treated from the package. During forced unwinding, the winding speed V (m / min) was measured in time when the treated polyurethane elastic fibers did not already play between the feeder and the embobinator. The rolling capacity (%) was obtained from the following formula and was evaluated with reference to the following criteria. The results are shown in Table 5. Winding capacity (%) = (V - 50) x 2 AA: Winding capacity is less than 125% (No problem at all, allowing stable winding) A: The capacity of Rolled is 125 to less than 135% (Light drag on the yarn drag, without any yarn breakage at all, to allow stable winding) B: Winding capacity is 135 to less than 145% (Some resistance in the drag of the thread, with some thread breakage, thus slightly bothering the operation) C: The winding capacity is 145% or more (high resistance in wire drag, with frequent thread breakage, thereby disturbing the operation) • Evaluation of the waste Ten packages of elastic polyurethane fibers treated in a miniature warper were arranged and coiled for 30,000 m in an atmosphere of 25 ° C and 65% RH at a wire speed of 200 m / min. In this case, the deposit and accumulation of waste in the comb guide of the miniature warper were observed and evaluated visually in reference to the following criteria. The results are shown in the Table 5. AA: Few wastes were deposited. A: Few wastes were deposited, without disturbing that the yarn ran stably. B: Waste was deposited and accumulated, bothering that the thread ran in a stable manner. C: Waste was deposited and accumulated remarkably, bothering enough that the thread ran in a stable way.

• Evaluation of the electrification control Ten packages of elastic polyurethane fibers treated in a miniature warping machine and set to run at a speed of 200 m / min in an atmosphere of 25 ° C and 65% RH were set to measure the charged voltage of the thread running between the slot of the creel and the front roller of the miniature warper, by means of a charged voltage measuring instrument (collector tube KS-525 produced by Kasuga). The measured value was evaluated with reference to the following criteria. The results are shown in Table 5. AA: The charged voltage is less than 1 kV (The operation can be carried out without any problem at all). A: The charged voltage was 1 kV to less than 2 kV (The operation can be carried out without any problem).

B: The charged voltage was 2 kV to less than 2.5 kV (some problem in the operation). C: The charged voltage was 2.5 kV or more (operation can not be performed).

[Table 5] Example 2 Class 1 test (preparation of treatment agent) Preparation of T-1 treatment agent 5.0 parts of magnesium distearate (F-1) were added to a silicone mixture consisting of 94.3 parts of a silicone oil (S-1) with a viscosity of 20 x 10"6 m2 / s at 25 ° C as a dispersion medium and 0.7 parts of the silicone modified with carboxyamide (A-1) shown in Table 6, and the mixture was stirred at 20 to 35 ° C until it became homogeneous, and ground in wet using a horizontal ball mill, to prepare the treatment (T-1) as a dispersion with colloidally dispersed magnesium distearate (F-1).

Preparation of the treatment agents (T-2) to (T-6) and (t-1) to (t-9) The treatment agents (T-2) to (T-6) and (t-1) a (t-9) were prepared as described to prepare the treatment agent (T-1). The details of these treatment agents are shown in Tables 7 and 8.

Preparation of the treatment agent (T-7) 3.5 parts of magnesium distearate (F-1) were added to a silicone mixture consisting of 94.4 parts of the silicone oil (S-1) as a dispersion medium, 1.2 parts of the silicone modified with carboxyamide (A-1) as a dispersant and 0.9 parts of the polyorganosiloxane (PS-1) shown below in Table 7, and the mixture was stirred at 20 to 35 ° C until it became homogeneous, and milled Wetted using a horizontal ball mill, to prepare the treating agent (T-7) with magnesium distearate (F-1) colloidally dispersed.

Preparation of treatment agent (T-8) The treatment agent (T-8) was prepared as described to prepare the treatment agent (T-7). The details are shown in Table 7.

Preparation of the treatment agent (t-10) 3.5 parts of magnesium distearate (F-1) was added to 96.5 parts of the silicone oil (S-1) used as a dispersion medium, and the mixture was stirred 20 35 ° C until it became homogeneous, and wet milled using a horizontal ball mill, to prepare the treatment agent (t-10) with magnesium distearate (F-1) colloidally dispersed.

[Table 6] In Table 1, CD-1: -C3 H6 -NH-C2 H4 -NHCO-C4 H8 COOH CD-2: -C3 H6 -NHCO-C2 H8 COOH AM-1: -C3He -NH-C2H4 -NH2 AM- 2: -C3H6-NH2 [Table 7] In Table 7, S / A: Proportion of silicone oil / silicon modified with carboxyamide (in weight) S / F: Parts of magnesium salt of greater fatty acid per 100 parts of silicone oil S / PS: Parts of polyorganosiloxane per 100 parts of silicone oil S-1: Polydimethylsiloxane with a viscosity of 20 x 10"6 m2 / s at 25 ° C S-2: Polydimethylsiloxane with a viscosity of 10 x 10" 6 m2 / s at 25CC F-1: Magnesium distearate F-2: Salt of magnesium of mixed fatty acid of palmitic acid / stearic acid = 40/60 (molar ratio) PS-1: polyorganosiloxane with remaining silanol groups, produced from tetramethylsilane / trimethylmethoxysilane = 50/50 (molar ratio) (the characteristic absorption of the silanol group 3750 cm "1 was detected by FT-IR) PS-2: polyorganosiloxane with remaining silanol groups, produced from tetramethylsilane / tripropylmethoxysilane = 35/65 (molar ratio) (the absorption band characteristic of the group silanol 3750 cm "1 was detected by FT-IR) [Table 8] In Table 8, S-1, F-1: As stated for Table 7. f-1: magnesium dicaprylate Class 2 test (evaluation and measurement of treatment agents) The dispersion stability and particle sizes of the treatment agents prepared in the Class 1 Test were evaluated and measured as described for Example 1. The results are shown in the Table 9. [Table 9] Test Class 3 (Application of treatment agents to elastic polyurethane fibers, and evaluation) • Production of elastic polyurethane fibers and method for applying treatment agents The reaction was carried out at 90 ° C for 3 hours of a mixture of bis- ( p-isocyanathophenyl) -methane / tetramethylene ether glycol (number average molecular weight of 1800) = 1.58 / 1 (molar ratio) according to a conventional method, to obtain a clogged glycol. Then, a DMAc solution containing ethylenediamine and diethylamine was added to the clogged glycol DMAc solution, and the mixture was stirred at room temperature using a high speed agitation machine, for chain extension. Additionally, DMAc was added to obtain a DMAc solution with approximately 35% by weight of a dissolved polymer. Titanium oxide, a weather resistant agent based on clogged amine and an antioxidant based on clogged phenol, were added to the polymer solution to achieve 4.7 wt%, 3.0 wt% and 1.2 wt% respectively, based in the weight of the polymer solid. The polymer mixture obtained was spun into a 40-denier elastic yarn consisting of four fibers by a known dry spinning method used for spandex, and a treatment was applied by an oiling roll prior to winding. The wire was wound around a 58 mm long cylindrical paper tube via a transverse guide to give a 38 mm winding width at a winding speed of about 600 m / min. The amount of the deposited treatment agent was controlled in reference to the weight of the yarn when adjusting the speed of the oiling roller. To evaluate the rolling capacity, a 500 g winding sample was used, and for another evaluation, a sample of 100 g winding was used. The amount of the treatment agent deposited was the amount extracted using n-hexane as an extraction solvent according to JIS-L1073 (Synthetic Fiber and Filament Yam Testing Methods). • Evaluation and measurement • Evaluation of fiber friction coefficient The coefficient of friction was calculated as described for Example 1. • Evaluation of the coefficient of friction of the metal Using a measuring instrument shown in Fig. 2, a non-coiled yarn 22 was passed from a pack 21 through a guide 23, and an initial tension (T3) of 10 g was applied. (detected by a detector 24), and hooked by two metal hooks 28 and 29 on its way through the free rollers 25, 26, and 27, to run at a speed of 100 m / min. In this state, the secondary voltage (T4) was measured by a detector 30 and the coefficient of friction was calculated from the following formula: Coefficient of friction = (T4 - T3) - * - (T3 + T4) • Evaluation of the winding shape It was evaluated as described for Example 1.

• Evaluation of the rolling capacity It was evaluated as described for Example 1. The results are shown in Table 10.

• Waste evaluation It was evaluated as described for Example 1, except that the packages were wound by 110,000 m. The results are shown in Table 10.

• Evaluation of electrification control It was evaluated as described for Example 1, except that 620 packages were arranged in a miniature warper. The results are shown in Table 10.

[Table 10] Example 3 Class 1 test (preparation of treatment agent) 5.0 parts of magnesium distearate (F-1) was added to a silicone mixture consisting of 94.2 parts of a silicone oil (S-1) with a viscosity of 20 x 10"6 m2 / s at 25 ° C as a dispersion medium and 0.7 parts of the amino-modified silicone (A-1) shown in Table 1 1 as a dispersant and 0.1 part of succinic anhydride (C-1), and the mixture was stirred at 20 to 35 ° C until it became homogeneous, and was wet milled using a horizontal ball mill, to prepare a treatment agent (T-1) as a dispersion with magnesium stearate (F -1) colloidally dispersed.

Preparation of treatment agents (T-2) to (T-6) and (t-1) to (t-10) Treatment agents (T-2) to (T-6) and (t-1) to (t-10) were prepared as described to prepare the treatment agent (T-1). The details of the treatment agents are shown in Tables 12 and 13.

Preparation of the treatment agent (T-7) 4.0 parts of magnesium distearate (F-1) was added to a silicone mixture consisting of 94.2 parts of the silicone oil (S-1) as a dispersion medium, 0.7 parts of the silicone modified with amino (A-1) as a dispersing agent, 0.1 part of succinic anhydride (C-1) and 1 .0 part of the polyorganosiloxane (PS-1) shown in Table 12, and the mixture of at 35 ° C until it became homogeneous, and wet milled using a horizontal ball mill, to prepare the treatment agent (T-7) with magnesium distearate (F-1) colloidally dispersed.

Preparation of the treatment agent (T-8) The treatment agent (T-8) was prepared as described to prepare the treatment agent (T-7). The details are shown in Table 12.

Preparation of the treatment agent (t-1 1) 3.5 parts of magnesium distearate (F-1) was added to 96.5 parts of the silicone oil (S-1) used as a dispersion medium, and the mixture was stirred for 20 minutes. at 35 ° C until it became homogeneous, and ground using a horizontal ball mill, to prepare the treatment agent (t-1 1) with magnesium distearate (F-1) colloidally dispersed. [Table 1 1] In Table 11, AM-1: -C3 H6 -NH-C2 H4 -NH2 AM-2: -C3 H6 -NH2 [Table 12] In Table 12, S / (A + c): Proportion of total silicone modified with amino and organic carboxylic acid per 100 parts of silicone oil (weight ratio) A / c: Parts of organic carboxylic acid per 100 parts of silicon modified with amino S / F: Parts of magnesium salt of greater fatty acid per 100 parts of silicone oil S / PS: Parts of polyorganosiloxane per 100 parts of silicone oil S-1: Polydimethylsiloxane with a viscosity of 20 x 10"6 m2 / s at 25 ° C S-2: Polydimethylsiloxane with a viscosity of 10 x 10" 6 m2 / s at 25 ° C c-1: Succinic anhydride c-2: Maleic acid c-3: Adipic acid F-1: Magnesium distearate F-2: Magnesium salt of mixed fatty acid of palmitic acid / stearic acid = 40/60 (molar ratio) PS-1: Polyorganosiloxane with remaining silanol groups , produced from tetramethylsilane / trimethylmethoxysilane = 50/50 (molar ratio) (the absorption band characteristic of silanol group 3750 cm "1 was detected by FT-IR) PS-2: Polyorganosiloxane produced with remaining silanol groups, produced from of tetramethylsilane / tripropylmethoxysilane = 35/65 (molar ratio) (the absorption band characteristic of the silanol group 3750 cm "1 was detected by FT-IR) [Table 13] S-1, c-1, F-1: As stated for Table 12 f-1: Magnesium dicaprylate Class 2 test (evaluation and measurement of treatment agents) The stability of the dispersion, average particle sizes and zeta potentials of the treatment agents prepared in the Class 1 Test were evaluated and measured as described below. The results are shown in Table 14. • Evaluation of the stability of the dispersion It was evaluated according to the same method as in Example 1.

• Evaluation of the viscosity property 100 g of elastic polyurethane fibers spun without any deposited treatment agent were immersed in 1 liter of a treatment agent at room temperature for 1 week, and the elastic polyurethane fibers and the treatment agent they separated, to recover the treatment agent used for the immersion. The viscosities of the treatment agent before and after immersion were measured using a Brookfield viscometer (rotor speed: 6 rpm). The measured values were evaluated with reference to the following criteria. A: The increase in viscosity after immersion was less than % of the viscosity before immersion. B: The increase in viscosity after immersion was 10% at less than 20% of the viscosity before immersion. C: The increase in viscosity after immersion was 20% or more of the viscosity before immersion.

• Measurement of average particle size The average particle size was measured as described for Example 1.

• Measurement of zeta potential The zeta potential was measured as described for Example 1.

[Table 14] Class 3 test (Application of elastic polyurethane fiber treatment agents, and evaluation) • Production of elastic polyurethane fibers and method for applying treatment agents Elastic polyurethane fibers were produced as described for Example 2, and applied the treatment agents.

• Evaluation and measurement • Evaluation of fiber friction coefficient The coefficient of friction was calculated as described for Example 1. • Evaluation of the form of winding It was evaluated as described for Example 1 • Evaluation of the winding capacity It was evaluated as described for Example 1. The results are shown in Table 15. • Evaluation of waste It was evaluated as described for Example 1. The results are shown in Table 15. • Evaluation of electrification control It was evaluated as described for Example 1. The results are shown in Table 15.

[Table 15] Example 4 Class 1 test (preparation of treatment agents) Preparation of treatment agent T-1 5.0 parts of magnesium distearate (F-1) were added to a silicone mixture consisting of 94.2 parts of a silicone oil (S- 1) with a viscosity of 20 x 10"6 m2 / s at 25 ° C as a dispersion medium, 0.7 parts of the amino-modified silicone (A-1) shown in Table 16 and 0.1 part of the carboxy-modified silicone (B -1) shown in Table 17, and the mixture was stirred at 20 to 35 ° C until it became homogeneous, and was wet milled using a horizontal ball mill, to prepare the treating agent (T-1) as a dispersion with magnesium distearate (F-1) colloidally dispersed.

Preparation of treatment agents (T-2) to (T-6) and (t-1) to (t-8) Treatment agents (T-2) to (T-6) and (t-1) to (t-8) were prepared as described to prepare the treatment agent (T-1). The details of the treatment agents are shown in Tables 18 and 19.

Preparation of the treatment agent (T-7) 3.5 parts of magnesium distearate were added to a silicone mixture consisting of 94.36 parts of the silicone oil (S-1) as a dispersion medium, 1.2 parts of the silicone modified with amino (A-1) shown in Table 16, 0.04 part of the carboxy-modified silicone (B-1) shown in Table 17 and 0.9 part of the polyorganosiloxane (PS-1) shown below in Table 18, and the mixture it was stirred at 20 to 35 ° C until it became homogeneous, and ground using a horizontal ball mill, to prepare the treating agent (T-7) with magnesium distearate (F-1) colloidally dispersed.

Preparation of the treatment agent (T-8) The treatment agent (T-8) was prepared as described to prepare the treatment agent (T-7). The details are shown in Table 18.

Preparation of the treatment agent (t-9) 3.5 parts of magnesium distearate (F-1) were added to 96.5 parts of silicone oil (S-1) used as a dispersion medium, and the mixture was stirred 20 35 ° C until it became homogeneous, and was wet milled using a horizontal ball mill, to prepare the treatment agent (t-9) with magnesium distearate (F-1) colloidally dispersed. The details are shown in Table 19. [Table 16] In Table 16, AM-1: -C3 H6 -NH-C2 H4 -NH2 AM-2: -C3 H6-NH2 [Table 17] In Table 17, CS-1: -C3 H6-COOH [Table 18] In Table 18, S / A: Proportion of the total silicone modified with amino and silicon modified with carboxy per 100 parts of silicone oil (weight ratio) A / B: Parts of silicon modified with carboxy per 100 parts of modified silicone with amino S / F: Parts of magnesium salt of greater fatty acid per 100 parts of silicone oil S / PS: Parts of polyorganosiloxane per 100 parts of silicone oil S-1: Polydimethylsiloxane with a viscosity of 20 x 10"6 m2 / s at 25 ° C S-2: Polydimethylsiloxane with a viscosity of 10 x 10" m2 / s at 25 ° C F-1: Magnesium distearate F-2 : Magnesium salt of mixed fatty acid of palmitic acid / stearic acid = 40/60 (molar ratio) PS-1: Polyorganosiloxane with remaining silanol groups, produced from tetramethylsilane / trimethylmethoxysilane = 50/50 (molar ratio) absorption band characteristic of silanol group 3750 cm "1 was detected by FT-I R) PS-2: Polyorganosiloxane produced with remaining silanol groups, produced from tetramethylsilane / tripropylmethoxysilane = 35/65 (molar ratio) (the absorption band characteristic of the silanol group [Table 19] In Table 19, S-1, F-1: As stated for Table 18 f-1: Magnesium dicaprylate Class 2 test (evaluation and measurement of treatment agents) The stability of the dispersion, average particle sizes and zeta potentials of the treatment agents prepared in the Class 1 Test were evaluated and measured as described below. The results are shown in Table 20. • Evaluation of the stability of the dispersion It was evaluated as described for Example 1.

• Evaluation of the viscosity property It was evaluated as described for Example 3.

• Measurement of the average particle size The average particle size was measured as described for the Example 1 .

• Measurement of zeta potential The zeta potential was measured as described for Example 1.

[Table 20] Class 3 test (Application of elastic polyurethane fiber treatment agents, and evaluation) • Production of elastic polyurethane fibers and method for applying treatment agents Elastic polyurethane fibers were produced as described for Example 2, and applied the treatment agents.

• Evaluation and measurement • Evaluation of fiber friction coefficient The coefficient of friction was calculated as described for Example 1. • Evaluation of the winding shape The winding form was evaluated as described for the Example 1 • Evaluation of the winding capacity The winding capacity was evaluated as described for Example 1. The results are shown in Table 21. • Waste evaluation It was evaluated as described for Example 1. The results are shown in Table 21. • Evaluation of the electrification control It was evaluated as described for Example 1. The results are shown in Table 21.

[Table 21] INDUSTRIAL APPLICABILITY The treatment agent for elastic polyurethane fibers according to the present invention can make excellent elastic polyurethane fibers in the form of winding and rolling capacity, and can decrease the deposit and accumulation of waste in the guides during processing, for allow stable operation in the production of elastic polyurethane fibers.

Claims (24)

1. CLAIMS 1. A treatment agent for elastic polyurethane fibers comprising a dispersion in which a magnesium salt of greater fatty acid represented by the following formula I, is dispersed colloidally in a mixture consisting of a silicone oil with a viscosity of 5 x 10" 6 - 50 x 10"6 m2 / s at 25 ° C as a dispersion medium and a dispersant comprising mainly a modified silicone at a weight ratio of said dispersion medium / dispersant = 100 / 0.5 - 100 / 4.5, where the amount of said higher fatty acid magnesium salt is 1 to 10 parts by weight per 100 parts by weight of said silicone oil. R2 -COO Mg • • • I R3 -COO (R2, R3: an alkyl group with 11 to 21 carbon atoms) 2. The treatment agent for elastic polyurethane fibers according to claim 1, wherein an amino-modified silicone represented by the following formula II is used as the dispersant. CH3 CH CH CH: CH X1 - S i O (S i O) a (S i O) b (S i O) c S i -X2 p CH3 CH: RX CH (where X1, X2, X3: a methyl group or amino-modified group represented by -R4 (N H-R5) d-NH2; at least one of them is the amino-modified group, R1: an alkyl group with 2 to 5 carbon atoms or phenyl group, R 4, Rs: an alkylene group with 2 to 5 carbon atoms, a, b: a is an integer from 25 to 400 and b is an integer from 0 to 200, subject to 25 < a + b < 400, c: an integer from 0 to 10 d: 0 or 1) 3. The treatment agent for elastic polyurethane fibers according to claim 2, wherein in formula II to represent an amino-modified silicone, X3 denotes a group modified with amino and c denotes 1 to 5. 4. The treatment agent for elastic polyurethane fibers according to claim 3, wherein in formula II to represent a modified silicone with amino, a denotes 100 to 200, and b denotes 0. 5. The treatment agent for elastic polyurethane fibers according to claim 4, wherein the prop Orion by weight of the silicone oil to the amino-modified silicone is said silicone oil / said silicon modified with amino = 100/1 .6 - 100 / 0.5, and the amount of the magnesium salt of fatty acid greater is 2 to 8 parts by weight per 100 parts by weight of the silicone oil. 6. The treatment agent for elastic polyurethane fibers according to claim 1, wherein a silicone modified with carboxyamide represented by the following formula III is used as the dispersant. CH; CH: CH3 CH; CH; CH: X '- S i O (S i O) a (S i O) b (S i O) c (S i O) dS i -X2 - - • Yes CH3 CH3 R «R2 X3 CH3 (wherein X1, X2, X3: a methyl group or group modified with carboxyamide represented by the following formula IV, at least one of them is said group modified with carboxyamide, R1: an alkyl group with 2 to 5 carbon atoms or group phenyl R2: -R5- (NH-R6-) f-NH2 Rs, Rs: an alkylene group having 2 to 5 carbon atoms, a, b, c: a is an integer from 25 to 400, b is an integer of 0 to 200, c is an integer from 0 to 5, subject to 25 < a + b + c < 600 d: an integer from 0 to 10 f: 0 or 1) -R7- (NH-R8-) e -NHCO-R9-COOH. . . IV (where R7, R8: an alkylene group with 2 to 5 carbon atoms, R9: an alkylene group with 2 to 20 carbon atoms, an alkenylene group with 2 to 20 carbon atoms, an alkenylethylene group with an alkenyl group with 2 to 20 carbon atoms or phenylene group, e: O or 1) 7. The treatment agent for elastic polyurethane fibers according to claim 6, wherein in formula ll to represent a silicone modified with carboxyamide, X3 denotes a modified group with carboxyamide, and d denotes 1 to 5. The treatment agent for elastic polyurethane fibers according to claim 7, wherein in formula III to represent a silicone modified with carboxyamide, X1 and X2 denote a methyl group respectively; a, 100 to 200; b, 0; and c, 0 to 2. 9. The treatment agent for elastic polyurethane fibers according to claim 7 or 8.Wherein the weight ratio of silicone oil to the carboxyamide modified silicone is said with silicone oil / modified silicone such carboxyamide = 100 / 0.5 - 100/1 0.6, and the amount of the magnesium salt of higher fatty acid is 2 to 8 parts by weight per 100 parts by weight of the silicone oil. The treatment agent for elastic polyurethane fibers according to claim 1, wherein the amino-modified silicone represented by formula II as a dispersant and the following organic carboxylic acid are used at a weight ratio of said modified silicone. with amino / said organic carboxylic acid = 100-100 - 100/2. Organic carboxylic acid: one or more as a mixture of mono- to tetracarboxylic organic acids with 4 to 22 carbon atoms, with a melting point of 50 to 220 ° C. The treatment agent for elastic polyurethane fibers according to claim 10, wherein in formula II to represent an amino-modified silicone, X3 denotes an amino-modified group, and c denotes 1 to 5. 12. The treatment agent for elastic polyurethane fibers according to claim 11, wherein in formula II to represent an amino-modified silicone, X1 and X2 denote a methyl group respectively; a, 100 to 200; and b, 0. 13. The treatment agent for elastic polyurethane fibers according to claim 11 or 12, the weight ratio of the silicone oil, the amino modified silicone and the organic carboxylic acid is said silicon oil / total of said amino-modified silicone and said organic carboxylic acid = 100 / 1.6-100 / 0.5, and the amount of the magnesium salt of higher fatty acid is 2 to 8 parts by weight per 100 parts by weight of the silicone oil. The treatment agent for elastic polyurethane fibers according to claim 1, wherein the weight ratio of an amino-modified silicone represented by said formula II as a dispersant and a carboxy-modified silicone represented by the following formula V said silicon modified with amino / said silicon modified with carboxy = 100/100 - 100/2. CH3 CH: CH CH: CH X4 - S i O (S i O) e (S i O) f (S i O) gS i -X5 V (where X4, Xs, X6: a methyl group or carboxy-modified group represented by -R7 -COOH; at least one of them is said carboxy-modified group, R2: an alkyl group with 2 to 5 carbon atoms or group phenyl, R7: an alkylene group with 2 to 5 carbon atoms, e, f: e is an integer from 25 to 800, and f is an integer from 0 to 200, subject to 25 <e + f <800, g : an integer from 0 to 20) 15. The treatment agent for elastic polyurethane fibers according to claim 14, wherein in formula II to represent an amino-modified silicone, X3 denotes an amino-modified group, and c denotes 1 to 5. 16. The treatment agent for elastic polyurethane fibers according to claim 15, wherein in formula II to represent an amino-modified silicone, X1 and X2 denote a methyl group respectively; a, 100 to 200; and b, 0. 17. The treatment agent for elastic polyurethane fibers according to claim 15, wherein in the formula V to represent a silicon modified with carboxy, e denotes 100 to 400, and f denotes 0. 18. The agent of treatment for elastic polyurethane fibers according to claim 16 or 17, wherein the weight ratio of the silicone oil, the amino modified silicone and the carboxy modified silicone is said silicone oil / total of said silicone modified with amino and said modified silicone with carboxy = 100/1 .6 - 100 / 0.5, and the amount of the magnesium salt of higher fatty acid is 2 to 8 parts by weight per 100 parts by weight of said silicone oil. 19. The treatment agent for elastic polyurethane fibers according to any of claims 2, 6, 10 and 14, wherein the dispersion further contains 0.5 to 5 parts by weight of the following polyorganosiloxane per 100 parts by weight of the silicone oil . Polyorganosiloxane: A polyorganosiloxane consisting of silicic anhydride component, represented by the following formula VI as a major component and a monovalent organosiloxane component, represented by the following formula VI as silyl end groups, having silanol residues in the molecule, which is produced by silanol forming reaction using a formable silanol compound (A) intended to form said silicic anhydride component and a formable silanol compound (B) intended to form said monovalent siloxane component at a molar ratio of said formable compound silanol (A) / said silanol formable compound (B) = k / [8/5 x (k + 1) - k / [2/5 x (k + 1)] and polycondensation reaction of the silanol produced by the reaction silanol former, where k is an integer of 1 or more. [YES 2]. . . VI [R8 R9 R10 SiO? / 2]. . . Vi l (where R8, R9, R0: respectively independently, an alkyl group with 1 to 3 carbon atoms or phenyl group) 20. The treatment agent for elastic polyurethane fibers according to any of claims 2, 6, 10 and 14, wherein the average particle size of the magnesium sai of major fatty acid colloidally dispersed is 0.1 to 0.5 μm. twenty-one . The treatment agent for elastic polyurethane fibers according to any of claims 2, 6, 10 and 14, wherein a dispersion obtained by diluting a treatment agent for elastic polyurethane fibers to achieve a concentration of magnesium salt of acid Fat greater than 80 ppm when using the same dispersion medium as that used for said treatment agent for elastic polyurethane fibers, has a zeta potential of -30 to -100 mV at 25 ° C. 22. The elastic polyurethane fibers comprising the treatment agent for elastic polyurethane fibers stated in claim 19, deposited by 1 to 10% by weight by the pure oil method without diluting it. 23. The elastic polyurethane fibers comprising the treatment agent for elastic polyurethane fibers declared in claim 20, deposited by 1 to 10% by weight by the pure oil method without diluting it. 24. The elastic polyurethane fibers comprising the treatment agent for elastic polyurethane fibers declared in claim 21, deposited by 1 to 10% by weight by the pure oil method without diluting it.