Treatment agent for spandex and spandex

Abstract

Provided are an elastic fiber treatment agent capable of improving stability and an elastic fiber to which the elastic fiber treatment agent is attached. The elastic fiber treatment agent of the present invention is characterized by containing: at least one base component selected from the group consisting of silicone oil, mineral oil, polyolefin, and ester oil; an amine salt of alkyl phosphate; and at least one quaternary ammonium salt selected from the group consisting of a fatty acid salt of quaternary ammonium, an alkyl sulfonate, an alkyl sulfate, and an alkyl phosphate. The elastic fiber of the present invention is characterized by having the above-described elastic fiber treatment agent attached thereto.

Description

Technical Field

[0001] This invention relates to a treatment agent for elastic fibers that can improve stability and elastic fibers coated with the treatment agent. Background Technology

[0002] In elastic fibers such as polyurethane-based elastic fibers, the inter-fiber adhesion is stronger compared to other synthetic fibers such as polyester-based or polyamide-based fibers. Therefore, when these elastic fibers are spun and wound into packages, they are difficult to unwind stably from the package during processing. Consequently, to improve the smoothness of elastic fibers, treatment agents containing smoothing agents such as silicone oil are sometimes used.

[0003] Previously known treatment agents for elastic fibers include those disclosed in International Patent Publication No. 2016-129357, Japanese Patent No. 6328836, Japanese Unexamined Patent Publication No. 2009-138282, and Japanese Unexamined Patent Publication No. 2017-203222. International Patent Publication No. 2016-129357 discloses a treatment agent for elastic fibers containing a base component such as silicone oil and a specific alkyl phosphate ester. Japanese Patent No. 6328836 discloses a treatment agent for elastic fibers containing a smoothing agent (which contains an alkane component in a proportion of 40% by mass or more and an aromatic component in a proportion of 10% by mass or less) and a sulfur-containing compound. Japanese Unexamined Patent Publication No. 2009-138282 discloses a treatment agent for elastic fibers containing a base component such as silicone oil and a quaternary ammonium phosphate salt in a proportion of 0.01 to 10% by mass. Japanese Patent Application Publication No. 2017-203222 discloses a treatment agent for elastic fibers containing a smoothing agent, a Gelbert alcohol having 12 to 24 carbon atoms, and a charge control agent. Summary of the Invention

[0004] The problem that the invention aims to solve

[0005] However, these solutions suffer from insufficient stability of the treatment agents used to treat elastic fibers containing the basic components.

[0006] The problem to be solved by the present invention is to provide an elastic fiber treatment agent that can improve stability and an elastic fiber coated with the elastic fiber treatment agent.

[0007] Methods for solving problems

[0008] In order to solve the above-mentioned problems, the inventors conducted research and found that the composition of the treatment agent for elastic fibers containing basic components, which is formed by mixing amine salts of alkyl phosphates and specified quaternary ammonium salts, is just right.

[0009] To address the aforementioned issues, one aspect of the present invention provides a treatment agent for elastic fibers characterized by comprising at least one base component selected from silicone oil, mineral oil, polyolefin, and ester oil; an amine salt of an alkyl phosphate; and at least one quaternary ammonium salt selected from quaternary ammonium fatty acid salts, alkyl sulfonates, alkyl sulfates, and alkyl phosphates.

[0010] In the above-mentioned treatment agent for elastic fibers, the amine salt of the alkyl phosphate is preferably selected from at least one of the compounds represented by the following chemical formula 1 and the compounds represented by the following chemical formula 2.

[0011]

[0012] (In chemical formula (1),

[0013] A 1 O is an alkylene oxide with 2 to 4 carbon atoms.

[0014] a is an integer from 0 to 30.

[0015] R 1 The residue obtained by removing the hydroxyl group from branched alcohols with 8 to 32 carbon atoms.

[0016] m is an integer of 1 or 2.

[0017] R 2 R 3 R 4 These are, respectively, straight-chain alkyl groups with 1 to 30 carbon atoms, branched alkyl groups with 3 to 30 carbon atoms, alkenyl groups with 2 to 30 carbon atoms, hydroxyalkyl groups with 1 to 30 carbon atoms, polyoxyalkylene groups with 1 to 30 carbon atoms, or hydrogen atoms.

[0018] Among them, R in the molecule 1 、(A 1 O) a When there are two or more, they can be the same or different from each other.

[0019]

[0020] (In chemical formula (2),

[0021] A 2 O is an alkylene oxide with 2 to 4 carbon atoms.

[0022] b is an integer between 0 and 30.

[0023] R 5 The residue obtained by removing the hydroxyl group from branched alcohols with 8 to 32 carbon atoms.

[0024] n is an integer of 1 or 2.

[0025] Q 1 hydroxyl or R 5 O(A 2 O) b -,

[0026] R 6 R 7 R 8 These are, respectively, straight-chain alkyl groups with 1 to 30 carbon atoms, branched alkyl groups with 3 to 30 carbon atoms, alkenyl groups with 2 to 30 carbon atoms, hydroxyalkyl groups with 1 to 30 carbon atoms, polyoxyalkylene groups with 1 to 30 carbon atoms, or hydrogen atoms.

[0027] Among them, R in the molecule 5 、(A 2 O) b When there are two or more, they can be the same or different from each other.

[0028] In the above-mentioned treatment agent for elastic fibers, the amine salt of the alkyl phosphate is selected from R in chemical formula (1). 1 Compounds containing residues obtained by removing hydroxyl groups from Guerbert alcohol and R in chemical formula (2) 5 At least one of the compounds containing residues obtained by removing a hydroxyl group from a Gerbert alcohol.

[0029] In the above-mentioned treatment agent for elastic fibers, when the total content of the above-mentioned basic component, the above-mentioned amine salt of alkyl phosphate and the above-mentioned quaternary ammonium salt is 100% by mass, it is preferable to contain the above-mentioned basic component in a proportion of 80 to 99.98% by mass, the above-mentioned amine salt of alkyl phosphate in a proportion of 0.01 to 10% by mass, and the above-mentioned quaternary ammonium salt in a proportion of 0.01 to 10% by mass.

[0030] To address the aforementioned issues, another aspect of the present invention provides an elastic fiber characterized by having the aforementioned elastic fiber treatment agent attached to it.

[0031] The effects of the invention

[0032] According to the present invention, the stability of the treatment agent for elastic fibers can be improved. Detailed Implementation

[0033] (First Embodiment)

[0034] The first embodiment of the treatment agent for elastic fibers (hereinafter referred to as the treatment agent) that specifically implements the present invention will now be described. The treatment agent of this embodiment includes a base component, an amine salt of an alkyl phosphate ester, and a specified quaternary ammonium salt.

[0035] Examples of base components for the treatment agent supplied in this embodiment include silicone oil, mineral oil, polyolefin, and ester oil. A single base component may be used, or two or more may be suitably combined. The base component is incorporated into the treatment agent as a smoothing agent to impart smoothness to the elastic fibers.

[0036] There are no particular limitations on specific examples of silicone oils, such as dimethyl silicone, phenyl-modified silicone, amino-modified silicone, amide-modified silicone, polyether-modified silicone, amino-polyether-modified silicone, alkyl-modified silicone, alkyl-aralkyl-modified silicone, alkyl-polyether-modified silicone, ester-modified silicone, epoxy-modified silicone, methanol-modified silicone, mercapto-modified silicone, and polyoxyethylene-modified silicone. Commercially available silicone oils may be suitable.

[0037] Examples of mineral oils include aromatic hydrocarbons, alkane hydrocarbons, and cycloalkanes. More specifically, examples include spindle oils and liquid paraffins. These mineral oils may be commercially available products.

[0038] Poly-α-olefins are used as lubricants. Specific examples of polyolefins include poly-α-olefins obtained by polymerizing 1-butene, 1-hexene, 1-decene, etc. Commercially available poly-α-olefins may be suitable.

[0039] There are no particular limitations on the examples of ester oils, and ester oils made from fatty acids and alcohols can be cited. Examples include, for instance, ester oils made from fatty acids having an odd or even number of hydrocarbon groups and alcohols, as described later.

[0040] The fatty acids used as raw materials for ester oils are not particularly restricted in terms of their number of carbon atoms, whether they have branches or not, or their number of atoms. For example, they can be higher fatty acids, fatty acids with cyclic structures, or fatty acids with aromatic rings. Similarly, the alcohols used as raw materials for ester oils are not particularly restricted in terms of their number of carbon atoms, whether they have branches or not, or their number of atoms. For example, they can be higher alcohols, alcohols with cyclic structures, or alcohols with aromatic rings.

[0041] Specific examples of ester oils include: (1) esters of aliphatic monools and aliphatic monocarboxylic acids such as octyl palmitate, oleyl laurate, oleyl oleate, and isotetracosyl oleate; (2) esters of aliphatic polyols and aliphatic monocarboxylic acids such as 1,6-hexanediol didecanoate, glyceryl trioleate, trimethylolpropane trilaurate, and pentaerythritol tetraoctanoate; and (3) esters of aliphatic monools and aliphatic monocarboxylic acids such as dioleyl azelate, dioleyl thiodipropionate, diisohexadecyl thiodipropionate, and diisostearyl thiodipropionate. Ester compounds of aliphatic polycarboxylic acids; (4) Ester compounds of aromatic monools and aliphatic monocarboxylic acids such as benzyl oleate and benzyl laurate; (5) Complete ester compounds of aromatic polyols and aliphatic monocarboxylic acids such as bisphenol A dilaurate; (6) Complete ester compounds of aliphatic monools and aromatic polycarboxylic acids such as bis(2-ethylhexyl) phthalate, diisostearyl isophthalate, and trioctyl trimellitate; (7) Natural oils such as coconut oil, rapeseed oil, sunflower oil, soybean oil, castor oil, sesame oil, fish oil, and tallow; etc.

[0042] The alkyl group of the amine salt constituting the alkyl phosphate can be linear or branched. Among these, branched alkyl groups are preferred for their superior shape characteristics when wound into elastic fibers. As branched alkyl groups, either α-branched or β-branched alkyl groups can be used. Among these, β-branched alkyl groups are preferred for optimal performance of the present invention. The number of carbon atoms in the alkyl group is not particularly limited, but is preferably 1 to 32, more preferably 8 to 32. Specific examples of alkyl groups include methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecanyl, octadecyl, eicosyl, isopropyl, isobutyl, isopentyl, isohexyl, isohexyl, isohexyl, isoctyl, isodecanyl, isoundecyl, isododecyl, isotridecyl, isotetradecyl, isopentadecanyl, isohexadecyl, isohexadecanyl, isohexadecanyl, isooctadecyl, and isoeicosyl.

[0043] Alkyl phosphate esters can be ester compounds of polyoxyalkylene alkyl ethers (which are formed by the ether bonding of a monohydric aliphatic alcohol and an alkyl oxide) and phosphoric acid. Specific examples of alkyl oxides supplied as polyoxyalkylene alkyl ethers include ethylene oxide, propylene oxide, and butane oxide. The molar number of alkyl oxides added to 1 mole of alkyl group is preferably 1 to 50 moles, more preferably 1 to 30 moles, and even more preferably 1 to 10 moles.

[0044] Phosphoric acid can be orthophosphoric acid or polyphosphoric acid such as diphosphoric acid. To improve the stability of the treatment agent, orthophosphoric acid or diphosphoric acid is preferred.

[0045] Specific examples of amines constituting alkyl phosphate salts include: (1) aliphatic amines such as methylamine, dimethylamine, trimethylamine, ethylamine, diethylamine, triethylamine, N-N-diisopropylethylamine, butylamine, dibutylamine, 2-methylbutylamine, tributylamine, octylamine, and dimethyllaurylamine; (2) aromatic amines or heterocyclic amines such as aniline, N-methylbenzylamine, pyridine, morpholine, piperazine, and their derivatives; (3) alkanolamines such as monoethanolamine, N-methylethanolamine, diethanolamine, triethanolamine, isopropanolamine, diisopropanolamine, triisopropanolamine, dibutylethanolamine, butyl diethanolamine, octyl diethanolamine, and lauryl diethanolamine; (4) arylamines such as N-methylbenzylamine; (5) polyoxyethylene lauryl amino ethers such as polyoxyethylene stearyl amino ether; (6) ammonia; and so on.

[0046] The amine salts of alkyl phosphates can be used alone or in combination of two or more in a suitable manner.

[0047] The amine salt of the alkyl phosphate is preferably selected from at least one of the compounds represented by chemical formula (1) and chemical formula (2) below. By using the compound represented by chemical formula (1) or the compound represented by chemical formula (2) below, the effects of the present invention can be improved, in particular the shape characteristics when the elastic fiber treated with the agent is wound into a bobbin shape can be improved.

[0048]

[0049] (In chemical formula (1),

[0050] A 1 O is an alkylene oxide with 2 to 4 carbon atoms.

[0051] a is an integer from 0 to 30.

[0052] R 1 The residue obtained by removing the hydroxyl group from branched alcohols with 8 to 32 carbon atoms.

[0053] m is an integer of 1 or 2.

[0054] R 2 R 3 R 4 These are, respectively, straight-chain alkyl groups with 1 to 30 carbon atoms, branched alkyl groups with 3 to 30 carbon atoms, alkenyl groups with 2 to 30 carbon atoms, hydroxyalkyl groups with 1 to 30 carbon atoms, polyoxyalkylene groups with 1 to 30 carbon atoms, or hydrogen atoms.

[0055] Among them, R in the molecule 1 、(A 1 O) aWhen there are two or more, they can be the same or different from each other.

[0056]

[0057] (In chemical formula (2),

[0058] A 2 O is an alkylene oxide with 2 to 4 carbon atoms.

[0059] b is an integer between 0 and 30.

[0060] R 5 The residue obtained by removing the hydroxyl group from branched alcohols with 8 to 32 carbon atoms.

[0061] n is an integer of 1 or 2.

[0062] Q 1 hydroxyl or R 5 O(A 2 O) b -,

[0063] R 6 R 7 R 8 These are, respectively, straight-chain alkyl groups with 1 to 30 carbon atoms, branched alkyl groups with 3 to 30 carbon atoms, alkenyl groups with 2 to 30 carbon atoms, hydroxyalkyl groups with 1 to 30 carbon atoms, polyoxyalkylene groups with 1 to 30 carbon atoms, or hydrogen atoms.

[0064] Among them, R in the molecule 5 、(A 2 O) b When there are two or more, they can be the same or different from each other.

[0065] Furthermore, the chemical formula (1) above preferably contains R. 1 A compound containing residues obtained by removing a hydroxyl group from a guerbert alcohol. Furthermore, the above chemical formula (2) preferably contains R. 5 This is a compound containing residues obtained by removing a hydroxyl group from a Guerbert alcohol. Using this compound can further enhance the effects of the present invention.

[0066] Examples of quaternary ammonium salts supplied in the processing agent of this embodiment include at least one selected from quaternary ammonium fatty acid salts, alkyl sulfonates, alkyl sulfates, and alkyl phosphates. A single quaternary ammonium salt may be used, or two or more may be suitably combined.

[0067] Specific examples of quaternary ammonium compounds that constitute quaternary ammonium salts include tetramethylammonium, triethylmethylammonium, tripropylethylammonium, tripropylmethylammonium, tributylmethylammonium, tetrabutylammonium, triisooctylethylammonium, trimethyloctylammonium, lauryltrimethylammonium, dilauryldimethylammonium, trimethylstearylammonium, dimethyldioleylammonium, dibutylenyldiethylammonium, triethyleicosenoenylammonium, trimethyloleylammonium, tributylhydroxyethylammonium, di(hydroxyethyl)dipropylammonium, (2-hydroxyethyl)dimethyloctylammonium, tri(hydroxyethyl)octylammonium, tri(hydroxypropyl)methylammonium, fatty acid dimethylaminopropylamide, fatty acid diethylaminoethylamide, etc.

[0068] Specific examples of fatty acids constituting quaternary ammonium fatty acid salts include aliphatic carboxylic acids with 1 to 30 carbon atoms such as acetic acid, hexanoic acid, lauric acid, 2-ethylhexanoic acid, isostearic acid, oleic acid, erucic acid, malonic acid, adipic acid, sebacic acid, and pentadecenylsuccinic acid; aliphatic hydroxycarboxylic acids with 3 to 30 carbon atoms such as lactic acid, ricinoleic acid, and 12-hydroxystearic acid; and sulfur-containing aliphatic carboxylic acids with 3 to 30 carbon atoms such as thiodipropionic acid. The groups obtained by partially or completely removing hydrogen ions from these fatty acids are used as anionic groups.

[0069] Specific examples of alkyl sulfonates constituting quaternary ammonium salts include alkyl sulfonates with 1 to 30 carbon atoms, such as methanesulfonic acid, ethyl sulfonic acid, butyl sulfonic acid, lauryl sulfonic acid, stearyl sulfonic acid, and oleyl sulfonic acid. The groups obtained by partially or completely removing hydrogen ions from these alkyl sulfonates are used as anionic groups.

[0070] Specific examples of alkyl sulfates that constitute quaternary ammonium salts include alkyl sulfates with 1 to 30 carbon atoms, such as methyl sulfate, ethyl sulfate, and lauryl sulfate. The groups obtained by partially or completely removing hydrogen ions from these alkyl sulfates are used as anionic groups.

[0071] Specific examples of alkyl phosphates constituting quaternary ammonium phosphate salts include alkyl phosphates with 1 to 30 carbon atoms, such as methyl phosphate, diethyl phosphate, dioctyl phosphate, and methyl oleyl phosphate. The groups obtained by partially or completely removing hydrogen ions from these alkyl phosphates are used as anionic groups.

[0072] All the quaternary ammonium salts described above can be synthesized using known methods. Examples include: 1) reacting the corresponding tertiary amine with a trialkyl phosphate ester; 2) reacting the corresponding tertiary amine with a dialkyl sulfuric acid; 3) reacting ethylene oxide with the corresponding tertiary amine in the presence of water to form a quaternary ammonium hydroxide, followed by reacting it with a sulfonate ester; 4) reacting the corresponding tertiary amine with a haloalkane to form a quaternary ammonium halide, followed by reacting it with a metal carboxylic acid salt; and so on.

[0073] The proportions of the basic component, the amine salt of the alkyl phosphate, and the quaternary ammonium salt in the treatment agent of this embodiment are not particularly limited. In the treatment agent of this embodiment, when the total proportion of the basic component, the amine salt of the alkyl phosphate, and the quaternary ammonium salt is 100% by mass, it is preferable that the basic component is contained in a proportion of 80 to 99.98% by mass, the amine salt of the alkyl phosphate in a proportion of 0.01 to 10% by mass, and the quaternary ammonium salt in a proportion of 0.01 to 10% by mass. By limiting it to this range, the effects of the present invention, particularly the antistatic properties, are further improved.

[0074] (Second Implementation)

[0075] Next, a second embodiment of the elastic fiber that specifically implements the present invention will be described. The elastic fiber of this embodiment is coated with the treatment agent of the first embodiment. There is no particular limitation on the amount of the treatment agent (excluding solvent) of the first embodiment relative to the elastic fiber, but from the viewpoint of further improving the effect of the present invention, it is preferable to coat it at a ratio of 0.1 to 10% by mass.

[0076] Examples of elastic fibers are not particularly limited, such as polyester-based elastic fibers, polyamide-based elastic fibers, polyolefin-based elastic fibers, and polyurethane-based elastic fibers. Among these, polyurethane-based elastic fibers are preferred. In this case, the effects of the present invention can be further improved.

[0077] The method for manufacturing elastic fibers according to this embodiment includes applying the treatment agent of the first embodiment to the elastic fibers. As the method for applying the treatment agent, it is preferable to apply it to the elastic fibers during the spinning process by a clean application method without dilution. Known methods such as roller application, guided application, and spray application can be used as the application method. The application roller is typically located between the nozzle and the traverse take-up device, and it can also be used in the manufacturing method of this embodiment. Among these, the application of the treatment agent of the first embodiment to the elastic fibers, such as polyurethane-based elastic fibers, using an application roller located between the stretching rollers is particularly effective and therefore preferred.

[0078] The manufacturing method of the elastic fiber used in this embodiment is not particularly limited, and it can be manufactured using known methods. Examples include wet spinning, melt spinning, and dry spinning. Among these, dry spinning is preferred from the perspective of superior quality and manufacturing efficiency of elastic fibers.

[0079] The effects and functions of the treatment agent and elastic fibers in this embodiment will be explained.

[0080] (1) The above embodiment is constructed by mixing an amine salt of an alkyl phosphate ester and a specified quaternary ammonium salt into a treatment agent containing a base component. As a result, the stability of the treatment agent, especially its long-term stability, can be improved without significantly reducing other properties.

[0081] In addition, it can improve the shape properties of elastic fibers treated with the agent, especially when wound into yarn packages. Furthermore, it can also improve the antistatic properties of elastic fibers.

[0082] It should be noted that the above implementation method can be modified as follows.

[0083] • In the treatment agent of this embodiment, without hindering the effect of the present invention, it can be further mixed with components commonly used in treatment agents such as stabilizers or charge control agents to maintain the quality of the treatment agent, thickeners, antioxidants, and ultraviolet absorbers.

[0084] Example

[0085] To illustrate the structure and effects of the present invention more specifically, embodiments are given below, but the present invention is not limited to these embodiments. It should be noted that in the following descriptions of embodiments and comparative examples, parts refer to parts by mass, and % refers to percentages by mass.

[0086] Experimental Group 1 (Preparation of Treatment Agents for Elastic Fibers)

[0087] The elastic fiber treatment agents used in each embodiment and comparative example were prepared using the components shown in Tables 1 to 3 by the following preparation method.

[0088] The amine salts (P-1-1a to P-5-1b) of the alkyl phosphates (monomers) represented by the above chemical formula (1) are shown in Table 1. R in chemical formula (1) is... 1 A 1 a, m, R 2 R 3 R 4 The types or values ​​are shown in Table 1 under "R". 1 "Column", "A" 1 "Column", "a" column, "m" column, "R" column 2 "Column", "R" 3 "Column", "R" 4 In the column.

[0089] The amine salts (P-1-2 to P-5-2) of the alkyl phosphate esters (polymers) represented by the above chemical formula (2) are shown in Table 2. R in chemical formula (2) is... 5 A 2 b, n, Q 1 R 6 R7 R 8 The types or values ​​are shown in Table 2 under "R". 5 "Column", "A" 2 "Column", "b" column, "n" column, "Q" column 1 "Column", "R" 6 "Column", "R" 7 "Column", "R" 8 In the column.

[0090] The treatment agent of Example 1 was prepared by thoroughly mixing 0.8 parts (%) of dimethyl laurylamine salt of monoisooctadecyl phosphate (P-1-1a) and 0.2 parts (%) of dimethyl laurylamine salt of diisooctadecyl phosphate (P-1-1b), 49 parts (%) of polydimethylsiloxane (L-1) and 49 parts (%) of mineral oil (L-2), and 1 part (%) of diethyl sulfate quaternary salt of dimethylaminopropyl isostearate (A-1).

[0091] The types of each component in the basic component, amine salt of alkyl phosphate, and quaternary ammonium salt of the elastic fiber treatment agent, and the proportion of each component when the total content of each component is 100%, are shown in the "Basic Components", "Amine Salt of Alkyl Phosphate", and "Quaternary Ammonium Salt" columns of Table 3.

[0092] The treatment agents of Examples 2-26 and Comparative Examples 1-9 were prepared in the same manner as the treatment agent of Example 1 by mixing the base components, the amine salts of alkyl phosphates, and the quaternary ammonium salts in the proportions shown in Table 3.

[0093] [Table 1]

[0094]

[0095] [Table 2]

[0096]

[0097] [Table 3]

[0098]

[0099]

[0100] In Table 3,

[0101] L-1 represents polydimethylsiloxane.

[0102] L-2 indicates mineral oil.

[0103] P-1-1a represents the dimethyl laurylamine salt of monoisooctadecyl phosphate.

[0104] P-1-1b represents the dimethyl laurylamine salt of diisooctadecyl phosphate.

[0105] P-1-2 represents the dimethyl laurylamine salt of isooctadecyl phosphate (polymer).

[0106] P-2-1a represents the dibutylethanolamine salt of monoisohexadecyl phosphate.

[0107] P-2-1b represents the dibutylethanolamine salt of diisohexadecyl phosphate.

[0108] P-2-2 represents the dibutylethanolamine salt of isohexadecanophosphate (polymer).

[0109] P-3-1a represents the 2-methylbutylamine neutralization of the phosphate ester of the 4 mol adduct of mono-2-octanol to ethylene oxide (hereinafter referred to as EO).

[0110] P-3-1b represents the 2-methylbutylamine neutralization of the phosphate ester of the EO4mol adduct of di-2-octanol.

[0111] P-3-2 represents the 2-methylbutylamine neutralization of the phosphate ester (polymer) of the EO4mol adduct of 2-octanol.

[0112] P-4-1a represents the N,N-diisopropylethylamine neutralization of the phosphate ester of the EO4mol adduct of mono-2-octanol.

[0113] P-4-1b represents the N,N-diisopropylethylamine neutralization of the phosphate ester of the EO4mol adduct of di-2-octanol.

[0114] P-4-2 represents the N,N-diisopropylethylamine neutralization of the phosphate ester (polymer) of the EO4mol adduct of 2-octanol.

[0115] P-5-1a represents the dibutylethanolamine neutralization of monolauryl phosphate.

[0116] P-5-1b represents the dibutylethanolamine neutralization of dilauryl phosphate.

[0117] P-5-2 represents the dibutylethanolamine neutralization of lauryl phosphate (polymer).

[0118] p-6-1a represents the potassium salt of monoisohexadecyl phosphate.

[0119] p-6-1b represents the potassium salt of diisohexadecyl phosphate.

[0120] p-6-2 represents the potassium salt of isohexadecanophosphate (polymer).

[0121] p-7 represents the dibutylethanolamine salt of dodecylbenzenesulfonic acid.

[0122] A-1 represents the diethyl sulfate quaternary salt of isostearic acid dimethylaminopropylamide.

[0123] A-2 represents the methanesulfonate salt of 2-hydroxyethyl-dimethyloctylammonium.

[0124] A-3 represents the diethyl phosphate of lauryltrimethylammonium.

[0125] a-4 represents the acetate of dimethyl laurylamine.

[0126] Experimental Group 2 (Manufacturing of Elastic Fibers)

[0127] First, a polymer solution (A) is prepared by polymerizing a polyurethane solution (35%) consisting of a tetramethylene ether diol with a molecular weight of 2900, bis-(p-isocyanate phenyl)-methane, and ethylenediamine in the form of N,N-dimethylacetamide.

[0128] Secondly, as an antioxidant, an N,N-dimethylacetamide solution (35%) of a mixture of polyurethane (which is generated by the reaction of tert-butyldiethanolamine with methylene-bis(4-cyclohexyl isocyanate)) and a condensation polymer (which is a condensation polymer of p-cresol and divinylbenzene) in a 2:1 (mass ratio) was prepared as a solution of other additives (B).

[0129] The solutions (A) and (B) mentioned above are mixed evenly at a ratio of 96% and 4% respectively, and used as the spinning solution.

[0130] Using the spinning solution obtained in this way, polyurethane-based elastic fibers with a 44 dtex / 3 fil multifilament were spun using a known dry spinning method used in spandex. Then, the yarn was oiled with the treatment agents shown in Examples 1-26 and Comparative Examples 1-9 in a solvent-free state by an oiling roller located between the stretching rollers before take-up. The elastic fibers that had been oiled in the above manner were taken onto a cylindrical paper tube with a length of 58 mm using a surface-drive take-up machine with a take-up speed of 600 m / min via a traverse guide that provides a take-up width of 38 mm, resulting in a 500 g package of dry-spun polyurethane-based elastic fibers. The amount of treatment agent applied to the elastic fibers was adjusted by adjusting the rotation speed of the oiling roller to ensure that the application amount was consistently 5%. The antistatic properties of the elastic fibers and the shape characteristics when the elastic fibers were wound into a cone shape were evaluated using the dry-spun polyurethane-based elastic fiber package obtained in this way. In addition, the stability of the treatment agent was evaluated. The evaluation method is described below.

[0131] Evaluation of antistatic properties

[0132] The resistance of 10g of polyurethane-based elastic fiber drawn from a roll was measured using a resistance meter (SM-5E type, manufactured by Toa Denpa Kogyo Co., Ltd.) at 25°C and 40% RH. The measured values ​​were evaluated according to the following criteria. The results are shown in the "Antistatic Properties" column of Table 3.

[0133] ◎(Excellent): Resistance value less than 1.0×10 9 Ω (Absolutely no problem, can operate stably).

[0134] ○ (Good): Resistance value is 1.0 × 10⁻⁶ 9 Ω or higher and less than 1.0 × 10 11 Ω (Slightly close during the warping process, but can be operated stably without problems).

[0135] △ (Slightly worse): Resistance value is 1.0 × 10 11 Ω or higher and less than 1.0 × 10 12 Ω (There is some adhesion of flying hair during the warping process and the circular knitting process, but there is no problem with operability).

[0136] × (Faulty): Resistance value is 1.0 × 10 12 Ω or above (the proximity during the warping process is severe, and the adhesion of fly hair during the circular knitting process is also severe, making operation impossible).

[0137] • Evaluation of the stability of the treatment agent

[0138] The elastic fiber treatment agent prepared in test group 1 was subjected to a 3-month standing period at 25°C, and its stability was evaluated according to the following criteria. The results are shown in the "Stability of Treatment Agent" column of Table 3.

[0139] ◎(Excellent): No precipitation or separation, maintaining the same uniform state as when it was first prepared.

[0140] ○(Good): Produces very slight turbidity, but can be restored to the same homogeneous state as when it was first prepared by stirring.

[0141] × (Poor): Sedimentation and separation occurred, and the mixture could not be restored to a homogeneous state by stirring.

[0142] Evaluation of yarn package shape

[0143] For 400g rolls, measure the maximum (Wmax) and minimum (Wmin) roll width, and calculate the bulk from the difference (Wmax-Wmin). Evaluate the yarn cone shape according to the following criteria. The results are shown in the "Yarn Cone Shape" column of Table 3.

[0144] ◎(Excellent): Expansion amount is less than 4mm.

[0145] ○(Good): Expansion amount is 4mm or more and less than 6mm.

[0146] △ (Slightly worse): Expansion is 6mm or more but less than 8mm.

[0147] × (Defective): Expansion amount is 8mm or more.

[0148] As can be seen from the evaluation results of each embodiment relative to each comparative example in Table 3, the treatment agent of the present invention can improve the stability of the treatment agent and improve the shape characteristics and antistatic properties of elastic fibers.

Claims

1. A treatment agent for elastic fibers, characterized in that, The treatment agent contains: It is selected from at least one base component from silicone oil, mineral oil, polyolefin and ester oil; Amino salts of alkyl phosphates; and At least one quaternary ammonium salt selected from quaternary ammonium fatty acid salts, alkyl sulfonates, alkyl sulfates, and alkyl phosphates. The amine salt of the alkyl phosphate is selected from at least one of the compounds represented by Chemical Formula 1 and Chemical Formula 2 below. Chemical Formula 1 In chemical formula 1, A 1 O is an alkylene oxide with 2 to 4 carbon atoms. a is an integer from 0 to 30. R 1 The residue obtained by removing the hydroxyl group from branched alcohols with 8 to 32 carbon atoms. m is an integer of 1 or 2. R 2 R 3 R 4 These are, respectively, straight-chain alkyl groups with 1 to 30 carbon atoms, branched alkyl groups with 3 to 30 carbon atoms, alkenyl groups with 2 to 30 carbon atoms, hydroxyalkyl groups with 1 to 30 carbon atoms, polyoxyalkylene groups with 1 to 30 carbon atoms, or hydrogen atoms. Among them, R in the molecule 1 、(A 1 O) a When there are two or more, they can be the same or different from each other; Chemical formula 2 In chemical formula 2, A 2 O is an alkylene oxide with 2 to 4 carbon atoms. b is an integer between 0 and 30. R 5 The residue obtained by removing the hydroxyl group from branched alcohols with 8 to 32 carbon atoms. n is an integer of 1 or 2. Q 1 hydroxyl or R 5 O(A 2 O) b -, R 6 R 7 R 8 These are, respectively, straight-chain alkyl groups with 1 to 30 carbon atoms, branched alkyl groups with 3 to 30 carbon atoms, alkenyl groups with 2 to 30 carbon atoms, hydroxyalkyl groups with 1 to 30 carbon atoms, polyoxyalkylene groups with 1 to 30 carbon atoms, or hydrogen atoms. Among them, R in the molecule 5 、(A 2 O) b When there are two or more, they can be the same or different from each other.

2. The treatment agent for elastic fibers as described in claim 1, wherein, The amine salt of the alkyl phosphate is selected from R in chemical formula 1. 1 Compounds containing residues obtained by removing hydroxyl groups from Guerbert alcohol and R in formula 2 5 At least one of the compounds containing residues obtained by removing a hydroxyl group from a Gerbert alcohol.

3. The treatment agent for elastic fibers as described in claim 1 or 2, wherein, When the total content of the basic component, the amine salt of the alkyl phosphate, and the quaternary ammonium salt is 100% by mass, the basic component is contained in a proportion of 80% to 99.98% by mass, the amine salt of the alkyl phosphate is contained in a proportion of 0.01% to 10% by mass, and the quaternary ammonium salt is contained in a proportion of 0.01% to 10% by mass.

4. An elastic fiber, characterized in that, It is coated with any one of the elastic fiber treatment agents according to claims 1 to 3.

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