TW202204707A - Dilution of treatment agent for interlaced stretched yarn and method for producing interlaced stretched yarn - Google Patents

Abstract

The present invention addresses the problem of causing a dilute solution of a treatment agent for an interlaced stretched yarn to adhere to a stretched yarn with good efficiency while suppressing a decrease in energy efficiency. This dilute solution of a treatment agent for an interlaced stretched yarn contains a volatile diluent and a surfactant-containing treatment agent for an interlaced stretched yarn. This dilute solution does not contain 5 mass% or more of each of aluminum hydroxide, a polyethyleneimine and a polyurethane resin in the treatment agent for an interlaced stretched yarn. If the total amount of the treatment agent for an interlaced stretched yarn and the volatile diluent in the dilute solution is taken to be 100 mass%, the content of the treatment agent for an interlaced stretched yarn is not less than 30 mass% and less than 94 mass%, and the content of the volatile diluent is more than 6 mass% and not more than 70 mass%.

Description

Diluent of treatment agent for interlaced drawn yarn, and method for producing interlaced drawn yarn

The present invention relates to a diluent of a treatment agent for interlaced and drawn yarns and a method for producing the interlaced and drawn yarns.

The intertwined drawn yarn is produced, for example, by performing the following steps: a spinning and drawing step in which the raw material resin of the interwoven drawn yarn is melted with heat to spin and extend; an interlacing step in which the drawn fibers are interlaced; After the fiber is coiled, the coiling step is carried out.

In the production process of the intertwined and drawn yarn, in order to improve the bundle properties of the fibers, etc., a diluted solution of the treatment agent for the intertwined and drawn yarn may be used.

Patent Document 1 describes a method for producing polyester fibers, and discloses a method in which an emulsion-type oil agent (a dilution of a treatment agent for drawing yarn) containing 12% by weight of a surfactant component is attached to the fiber after heating and drawing. .

prior art literature Patent Literature Patent Document 1: Japanese Patent Laid-Open No. 61-194218

The problem to be solved by the invention In addition, in the spinning and stretching step, if the dilution liquid is attached before the stretching, the heat of the heating roller is absorbed by the vaporization of the diluting liquid when the fiber is stretched in the spinning and stretching step, and thus the energy efficiency may be lowered. . In addition, if the dilution liquid is attached after the stretching, since the yarn speed after the stretching is usually high, it may be difficult to efficiently attach the dilution liquid.

The present invention has been made in view of such circumstances, and an object thereof is to provide a diluted solution of a treatment agent for interlaced drawn yarns that can efficiently adhere to drawn yarns while suppressing a decrease in energy efficiency. Another object of the present invention is to provide a method for producing an interwoven drawn yarn using a diluent of the treatment agent for interwoven drawn yarn.

means of solving problems The diluent of the treatment agent for interlaced and drawn yarns for solving the above-mentioned problems contains the treatment agent for interlaced and drawn yarns containing a surfactant and a volatile diluent. The content of aluminum, polyethyleneimine and polyurethane resin is not more than 5 mass %, when the total content ratio of the treatment agent for interlaced and drawn yarn and the volatile diluent in the diluent is set to 100 mass %. The above-mentioned treatment agent for interlaced drawn yarn is contained in a ratio of 30% by mass or more and less than 94% by mass, and the above-mentioned volatile diluent is contained in a ratio of more than 6% by mass and 70% by mass or less.

It is preferable that the diluent of the above-mentioned treatment agent for interlaced and drawn yarns does not include aluminum hydroxide, polyethyleneimine and polyurethane resin in the above-mentioned treatment agent for interwoven and drawn yarns.

Preferably, the diluent of the above-mentioned treatment agent for interlaced and drawn yarn has a kinematic viscosity at 30° C. of 10 to 1000 mm ² /s.

The diluent of the treatment agent for interlaced drawn yarns is preferably 35 to 70 mass % when the total content ratio of the treatment agent for interlaced drawn yarns and the volatile diluent in the diluent is 100% by mass. The above-mentioned treatment agent for interlaced and drawn yarn is contained in a proportion of %, and the above-mentioned volatile diluent is contained in a proportion of 30 to 65% by mass.

As for the diluent of the above-mentioned treatment agent for interlaced and drawn yarn, it is preferable that the above-mentioned volatile diluent contains water.

The diluent of the above-mentioned treatment agent for interlaced and stretched yarns is preferably: the above-mentioned surfactant contains an ionic surfactant, and the above-mentioned ionic surfactant contains fatty acid salts, organic phosphates, organic sulfonates, amphoteric compounds and quaternary compounds. at least one of the ammonium salts.

The diluent of the above-mentioned treatment agent for interwoven and stretched yarns is preferably: the surfactant further contains a nonionic surfactant; when the above-mentioned nonionic surfactant and the above-mentioned ionic interface in the above-mentioned treatment agent for interwoven and stretched yarns When the total content of the active agent is 100% by mass, the treatment agent for interlaced and drawn yarn contains the nonionic surfactant in a ratio of 80 to 99.9 mass % and the ionic surfactant in a ratio of 0.1 to 20 mass %. Surfactant.

The diluent of the above-mentioned treatment agent for interwoven and stretched yarns is preferably: the above-mentioned treatment agent for interwoven and stretched yarns further contains a smoothing agent, and the above-mentioned surfactant further contains a nonionic surfactant; When the total content of the smoothing agent, the nonionic surfactant, and the ionic surfactant is 100 mass %, the treatment agent for interlaced and drawn yarns contains the smoothing agent in a ratio of 30 to 80 mass %, The said nonionic surfactant is contained in the ratio of 5-69.9 mass %, and the said ionic surfactant is contained in the ratio of 0.1-20 mass %.

A method for producing an intertwined and drawn yarn for solving the above-mentioned problems, the main point of which is to include a spinning and drawing step of spinning and drawing synthetic fibers, and a winding of winding the drawn yarn obtained by the spinning and drawing step. In a series of spinning, drawing and winding steps of the step, there are steps of applying a diluent solution of the treatment agent for interlaced drawn yarn to the drawn yarn after the spinning and drawing step and before the above-mentioned winding step, and performing the interlacing treatment. Interleaving step.

In the method for producing the above-mentioned interwoven and drawn yarn, preferably, in the step of applying, a diluted solution of the above-mentioned treatment agent for interlaced and drawn yarn is applied to the above-mentioned drawn yarn in a ratio of 0.1% by mass to 3.0% by mass as the treatment agent for the interlaced and drawn yarn .

In the method for producing the above-mentioned intertwined drawn yarn, it is preferable that the adhesion amount of the treatment agent for synthetic fibers to the yarn before drawing in the spinning and drawing step is less than 0.2 mass %.

In the manufacturing method of the above-mentioned interwoven drawn yarn, preferably, the winding speed of the drawn yarn in the above-mentioned winding step is preferably 3500 m/min or more.

Invention effect According to the diluent of the treatment agent for interlaced drawn yarns and the method for producing the interlaced drawn yarns of the present invention, the reduction in energy efficiency can be suppressed and the diluent can be efficiently adhered to the drawn yarns.

(first embodiment)

The 1st Embodiment which actualized the dilution liquid (henceforth a dilution liquid) of the treatment agent for interlaced drawn yarns of this invention is demonstrated.

The diluent of the present embodiment is obtained by diluting a surfactant-containing treatment agent for interlaced and drawn yarns (hereinafter also simply referred to as treatment agents) with a volatile diluent, and is applied to spun and drawn synthetic fibers (hereinafter referred to as "treatment agents"). Also referred to as extension filament). In the diluent, the content of aluminum hydroxide, polyethyleneimine, and polyurethane resin in the treatment agent did not reach 5% by mass or more.

In addition, when the total content ratio of the treatment agent and the volatile diluent in the diluent is 100% by mass, the diluent contains the treatment agent in a ratio of not less than 30% by mass and less than 94% by mass, and more than 6% by mass And a volatile diluent is contained in the ratio of 70 mass % or less.

By applying the diluent to the drawn yarn, a decrease in energy efficiency can be suppressed. In addition, the stability of the dilution liquid was favorable by making the content of aluminum hydroxide, polyethyleneimine, and polyurethane resin in the processing agent not to be 5 mass % or more in the dilution liquid. In addition, generation of fuzz during post-processing can be suppressed. In addition, since the concentration of the treatment agent in the dilution liquid is appropriate by setting the content ratio of the treatment agent and the volatile dilution agent in the dilution liquid to the above-mentioned content ratio, the treatment agent can be efficiently attached to the drawn yarn.

It is preferable that the diluent is not mixed with aluminum hydroxide, polyethyleneimine and polyurethane resin in the treatment agent.

When the total content ratio of the treatment agent and the volatile diluent in the diluent is 100% by mass, the diluent preferably contains the treatment agent in a ratio of 35 to 70% by mass, and contains the treatment agent in a ratio of 30 to 65% by mass Volatile thinner.

The kinematic viscosity of the diluent at 30°C is preferably 10 to 1000 mm ² /s. By setting the kinematic viscosity of the diluent to be in the above numerical range, oil drop of the diluent can be more effectively suppressed as described below. In addition, the treatment agent can be adhered to the drawn yarn more efficiently. The kinematic viscosity at 30°C of the diluent is more preferably 20 mm ² /s or more, and more preferably 500 mm ² /s or less.

As a specific example of a volatile diluent, water, an organic solvent, a low-viscosity mineral oil, etc. are mentioned, for example. Specific examples of the organic solvent include hexane, ethanol, isopropanol, ethylene glycol, propylene glycol, diethyl ether, toluene, xylene, dimethylformamide, methyl ethyl ketone, and chloroform. Specific examples of low-viscosity mineral oils include mineral oils having a kinematic viscosity at 30°C of 5 mm ² /s or less, and more specifically, paraffins having 11 to 13 carbon atoms, and those having 12 carbon atoms. Paraffins, paraffins having 13 to 15 carbon atoms, paraffins having 14 carbon atoms, and the like. Among the volatile diluents, it is preferable to contain water in order to be excellent in handleability. These volatile diluents may be used alone or in combination of two or more.

Here, the volatile diluent refers to a material that completely volatilizes when heat-treated at 105° C. for 2 hours. Regarding the ratio of the treatment agent in the dilution solution, for example, a sample of 10 g of the dilution solution is collected in a petri dish, heat-treated at 105° C. for 2 hours, and the ratio of the treatment agent can be calculated from the mass ratio of the remaining sample at this time.

Specific examples of the surfactant include anionic surfactants, cationic surfactants, ionic surfactants such as amphoteric surfactants which are amphoteric compounds, and nonionic surfactants. These surfactants may be used alone or in combination of two or more.

Specific examples of the anionic surfactant include (1) fatty acid salts such as acetate, caprylate, laurate, oleate, and stearate; (2) octyl phosphate, lauryl Phosphate, cetyl phosphate, oleyl phosphate, stearyl phosphate, etc. as aliphatic alcohol phosphate salts; (3) polyoxyethylene lauryl ether phosphate , polyoxyethylene oleyl ether phosphate salt, polyoxyethylene stearyl ether phosphate ester salt, etc. to aliphatic alcohols by adding at least one alkylene oxide selected from ethylene oxide and propylene oxide as phosphate esters salts of organophosphates; (4) lauryl sulfonate, myristyl sulfonate, pentadecyl sulfonate, cetyl sulfonate, oleyl sulfonate, stearyl sulfonate , Second alkyl sulfonic acid (C13-15) salt, dioctyl sulfosuccinate, dodecylbenzene sulfonate and other organic sulfonates; (5) Lauryl sulfate, oleyl sulfate Sulfate salts of aliphatic alcohols such as salts and stearyl sulfate salts; (6) polyoxyethylene lauryl ether sulfate salts, polyoxyalkylene (polyoxyethylene, polyoxypropylene) lauryl ether sulfate salts , polyoxyethylene oleyl ether sulfate, etc. to aliphatic alcohols by adding at least one alkylene oxide selected from ethylene oxide and propylene oxide to the sulfate salt; (7) castor oil fatty acid sulfate salt, Sesame oil fatty acid sulfate, rosin oil fatty acid sulfate, soybean oil fatty acid sulfate, rapeseed oil fatty acid sulfate, palm oil fatty acid sulfate, lard fatty acid sulfate, tallow fatty acid sulfate, whale oil Sulfate salts of fatty acids such as fatty acid sulfate ester salts; (8) Sulfate ester salts of castor oil, sulfate ester salts of sesame oil, sulfate ester salts of rosin oil, sulfate ester salts of soybean oil, sulfate ester salts of rapeseed oil, palm oil (9) Fatty acids such as caprylic acid, lauric acid, oleic acid, and stearic acid; etc. Wait.

As a counter ion which comprises the said anionic surfactant, an alkali metal salt, an amine salt, etc. are mentioned. As a specific example of an alkali metal salt, a sodium salt, a potassium salt, etc. are mentioned, for example. Specific examples of amine salts include (1) methylamine, dimethylamine, trimethylamine, ethylamine, diethylamine, triethylamine, NN-diisopropylethylamine, butylamine, and dibutylamine. Amine, 2-methylbutylamine, tributylamine, octylamine, dimethyllaurylamine and other aliphatic amines; (2) aniline, N-methylbenzylamine, pyridine, morpholine, oxazine, and their derivatives (3) Monoethanolamine, N-methylethanolamine, diethanolamine, triethanolamine, isopropanolamine, diisopropanolamine, triisopropanolamine, dibutylethanolamine , butyldiethanolamine, octyldiethanolamine, lauryldiethanolamine and other alkanolamines; (4) N-methylbenzylamine and other arylamines; (5) polyoxyethylene lauryl amino ether, polyoxyethylene Polyoxyalkylene alkylamino ethers such as stearylamino ether; (6) ammonia; and the like.

Specific examples of the cationic surfactant include lauryltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, and behenyltrimethylammonium chloride. ammonium chloride, didecyl dimethyl ammonium chloride and other quaternary ammonium salts, etc.

As a specific example of an amphoteric surfactant, a betaine type amphoteric surfactant etc. are mentioned, for example.

Examples of nonionic surfactants include compounds obtained by adding alkylene oxides to alcohols or carboxylic acids, ether-ester compounds obtained by adding alkylene oxides to ester compounds of carboxylic acids and alcohols, Compounds obtained by adding alkylene oxide to natural oils and fats.

Specific examples of alcohols used as raw materials of nonionic surfactants include (1) methanol, ethanol, propanol, butanol, pentanol, hexanol, octanol, nonanol, and decanol, for example. , Undecyl alcohol, Dodecyl alcohol, Tridecyl alcohol, Myristyl alcohol, Pentadecyl alcohol, Cetyl alcohol, Heptadecyl alcohol, Stearyl alcohol, Nonadecyl alcohol, Eicosanyl alcohol , Hecosanol, Docosanol, Tricosanol, Tetracosanol, Pentacosanol, Hexadecanol, Heptacosanol, Stecosanol, Diacetylene Linear alkyl alcohols such as nonadecanol and triacontanol; (2) isopropanol, isobutanol, isohexanol, 2-ethylhexanol, isononanol, isodecanol, isododecanol , Isotridecanol, Isotetradecanol, Isotriacontanol, Isohexadecanol, Isohexadecanol, Isostearyl alcohol, Isononadecanol, Isoeicosanol, Iso Hecosanol, Isodocosanol, Isotricosanol, Isotetracosanol, Isopentacosanol, Isodocosanol, Isoheptacosanol, Isodioxin Branched-chain alkyl alcohols such as octadecanol, isotocosanol, isopentadecanol; (3) tetradecenol, hexadecenol, heptadecenol, octadecenol, nonadene Straight chain alkenyl alcohols such as alcohols; (4) branched chain alkenyl alcohols such as isohexadecenol and isooctadecenol; (5) cyclic alkyl alcohols such as cyclopentanol and cyclohexanol; (6) phenol , aromatic alcohols such as benzyl alcohol, monostyrenated phenol, distyrenated phenol, tristyrenated phenol; etc.

Specific examples of carboxylic acids used as raw materials of nonionic surfactants include (1) octanoic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, tridecanoic acid, Linear alkyl groups such as tetradecanoic acid, pentadecanoic acid, hexadecanoic acid, heptadecanoic acid, octadecanoic acid, nonadecanoic acid, eicosanoic acid, behenic acid, behenic acid, etc. Carboxylic acids; (2) branched chain alkyl carboxylic acids such as 2-ethylhexanoic acid, isododecanoic acid, isotridecanoic acid, isotetradecanoic acid, isohexadecanoic acid, and isooctadecanoic acid; (3) Linear alkenyl carboxylic acids such as octadecenoic acid, octadecadienoic acid, and octadecatrienoic acid; (4) aromatic carboxylic acids such as benzoic acid; and the like.

As a specific example of the alkylene oxide used as a raw material of a nonionic surfactant, ethylene oxide, propylene oxide, etc. are mentioned, for example. The number of added moles of alkylene oxide can be appropriately set, and is preferably 0.1 to 60 moles, more preferably 1 to 40 moles, and most preferably 2 to 30 moles. In addition, the added molar number of an alkylene oxide shows the molar number of the alkylene oxide with respect to 1 mol of alcohols or carboxylic acids put in a raw material.

Specific examples of the polyhydric alcohol used as a raw material of the nonionic surfactant include ethylene glycol, propylene glycol, 1,3-propanediol, 1,2-butanediol, 1,3-butanediol, 1,4-butanediol, 1,4-butanediol, 2-methyl-1,2-propanediol, 1,5-pentanediol, 1,6-hexanediol, 2,5-hexanediol , 2-methyl-2,4-pentanediol, 2,3-dimethyl-2,3-butanediol, glycerol, 2-methyl-2-hydroxymethyl-1,3-propanediol, 2 -Ethyl-2-hydroxymethyl-1,3-propanediol, trimethylolpropane, sorbitan, neotaerythritol, sorbitol, etc.

Specific examples of natural oils and fats used as raw materials of nonionic surfactants include coconut oil, rapeseed oil, sunflower oil, soybean oil, castor oil, sesame oil, fish oil, and tallow.

Examples of other nonionic surfactants include (1) alkylamide type nonionic surfactants such as diethanolamide stearate and diethanolamine monolauramide; (2) polyoxyethylene diolamide Ethanolamine monooleyl amide, polyoxyethylene lauryl amine, polyoxyethylene tallow amine and other polyoxyalkylene fatty amide type nonionic surfactants; and so on.

Specific examples of the nonionic surfactant include polyoxyethylene (10 mol) alkyl (12 and 13 carbon atoms) ether, polyoxyethylene (20 mol) hydrogenated castor oil ether, polyoxyethylene Ethylene (9 moles) alkyl (12-14 carbon atoms) ether, polyoxyethylene (5 moles) alkyl (12-14 carbon atoms) ether, polyoxyethylene (13 moles) polyoxypropylene ( 9 moles) butyl ether, polyoxyethylene (55 moles) polyoxypropylene (43 moles) trimethylolpropane ether, polyoxyethylene (15 moles) polyoxypropylene (10 moles) alkyl (carbon Atomic numbers 16, 18) ethers, etc.

When the above-mentioned surfactant contains an ionic surfactant, the ionic surfactant preferably contains at least one selected from the group consisting of fatty acid salts, organic phosphates, organic sulfonates, amphoteric compounds, and quaternary ammonium salts.

The above-mentioned surfactant may contain both a nonionic surfactant and an ionic surfactant. In this case, when the total content ratio of the nonionic surfactant and the ionic surfactant in the processing agent is 100% by mass, the processing agent preferably contains the nonionic surfactant in a ratio of 80 to 99.9% by mass A surfactant, and an ionic surfactant is contained in the ratio of 0.1-20 mass %.

The treatment agent may further contain a smoothing agent. In this case, the surfactant preferably contains both a nonionic surfactant and an ionic surfactant. In addition, when the total content ratio of the smoothing agent, the nonionic surfactant, and the ionic surfactant in the processing agent is 100% by mass, the processing agent preferably contains the smoothing agent, The nonionic surfactant is contained in a ratio of 5 to 69.9 mass %, and the ionic surfactant is contained in a ratio of 0.1 to 20 mass %.

The above-mentioned smoothing agent preferably contains at least one selected from esters and mineral oils (excluding components used as volatile diluents).

The ester used as a smoothing agent is not particularly limited, and examples thereof include (1) aliphatic esters such as octyl palmitate, oleyl laurate, lauryl oleate, oleyl oleate, and isotetradecyl oleate. Ester compounds of monoalcohols and aliphatic monocarboxylic acids; (2) 1,6-hexanediol dicaprate, glycerol trioleate, trimethylolpropane trilaurate, neopentaerythritol tetracaprylic acid Esters of aliphatic polyhydric alcohols such as esters, sorbitan monooleate and aliphatic monocarboxylic acids; (3) Dioleyl azelaic acid, dioleyl thiodipropionate, dioleyl thiodipropionate Ester compounds of aliphatic monoalcohols such as isohexadecyl ester and diisostearyl thiodipropionate and aliphatic polycarboxylic acids; (4) aromatic monoalcohols such as benzyl oleate, benzyl laurate and the like; ester compounds of aliphatic monocarboxylic acids; (5) ester compounds of aromatic polyols such as bisphenol A dilaurate and aliphatic monocarboxylic acids; (6) bis-2-ethylhexyl phthalate, Esters of aliphatic monoalcohols such as diisostearyl isophthalate and trioctyl trimellitate and aromatic polycarboxylic acids; (7) coconut oil, rapeseed oil, sunflower oil, soybean oil , natural oils such as castor oil, sesame oil, fish oil, and tallow; and more. In addition, a known smoothing agent or the like used for the treatment agent for interlaced and drawn yarn can also be used.

Specific examples of the smoothing agent include mineral oil (kinematic viscosity at 30°C: 47 mm ² /s), lauryl oleate, octyl palmitate, triolein, sorbitan monooleate, and the like. .

The said smoothing agent may be used individually by 1 type, and may be used in combination of 2 or more types.

(Second Embodiment)

The second embodiment which embodies the manufacturing method of the interlaced drawn yarn of the present invention will be described. In the method for producing an intertwined drawn yarn of the present embodiment, a series of spinning includes a spinning and drawing step of spinning and drawing synthetic fibers, and a winding step of winding the drawn yarn obtained in the spinning and drawing step. The drawing and winding step includes a step of applying a diluted solution of the treatment agent for interlaced drawn yarn of the first embodiment to the drawn yarn after the spinning and drawing step and before the winding step, and an interlacing step of performing interlacing treatment.

As a method of applying the diluent according to the first embodiment to the drawn yarn, for example, a method of adhering by a guided oil feeding method using a metering pump or the like can be applied.

The synthetic fiber used for the interlaced drawn yarn is not particularly limited, and examples thereof include polyester-based fibers, polyolefin-based fibers, polyamide-based fibers, polyacrylonitrile-based fibers, cellulose-based fibers, lignin-based fibers, and the like. These fibers may be composite synthetic fibers composed of two or more types. Specific examples of polyester fibers include polyethylene terephthalate (PET), polytrimethylene terephthalate, polybutylene terephthalate, and polyethylene naphthalate. esters, polylactic acid, and composite polyester-based fibers containing these polyester-based resins. Further, as the polyester-based fibers, modified polyester fibers such as alkaline or acid dyeable polyester fibers, antistatic polyester fibers, and flame-retardant polyester fibers can be used. Specific examples of polyolefin fibers include polyethylene fibers, polypropylene fibers, and polybutene fibers. In addition, as polypropylene fibers, modified polypropylene fibers obtained by copolymerizing various monomers, composite polypropylene fibers of polyethylene and polypropylene, and the like can be applied. Among them, when used for polyester fibers, the effect of the diluent of the present invention can be better exhibited.

The manufacturing method of the interwoven stretched yarn preferably goes through the following steps 1-5. Step 1: A spinning step of melt spinning is performed by heating and melting the raw resin of the interwoven and drawn yarns. Step 2: The stretching step of spinning and stretching the fibers obtained in the above-mentioned Step 1. Step 3: A step of applying the diluent of the first embodiment to the drawn yarn obtained by spinning and drawing. Step 4: an interlacing step of interlacing the drawn yarn that has undergone the above step 3. Step 5: The winding step of winding the interwoven stretched yarn that has undergone the above Step 4 on a winding machine.

It should be noted that the above steps 1 and 2 are collectively referred to as a spinning and stretching step. In addition, the above-mentioned steps 1, 2 and 5 are collectively referred to as a series of spinning, drawing and winding steps.

In the above-mentioned stretching step, for example, a method can be adopted in which two rolls consisting of a heated pulling roll (hereinafter also referred to as a first roll) and a heated stretching roll (hereinafter also referred to as a second roll) are used to pass the two rolls. The peripheral velocity difference is extended.

The adhesion amount of the treating agent for synthetic fibers to the yarn before drawing in the spinning and drawing step is preferably less than 0.2 mass %, more preferably 0.1 mass % or less, and most preferably 0 mass %. That is, it is preferable that the treatment agent for synthetic fibers including the treatment agent of the first embodiment does not adhere to the yarn before drawing.

The yarn speed of the drawn yarn subjected to the drawing step is not particularly limited, but the yarn speed is preferably 3500 m/min or more. That is, the winding speed of the drawn yarn in the winding step is preferably 3500 m/min or more. Even with respect to the yarn moving at such a high speed, since the adhesiveness does not decrease, the diluent can be effectively applied, and the yarn can be produced efficiently.

In the above-mentioned applying step, it is preferable to apply a diluted solution of the treatment agent for interlaced and drawn yarns to the drawn yarns in a ratio of 0.1 to 3.0% by mass as the treatment agent for interlaced and drawn yarns.

In the above-mentioned interlacing step, it is preferable to blow air from a direction perpendicular to the advancing direction of the fibers before winding the drawn yarns subjected to step 3 on the winding machine, and supply the drawn yarns to a place where the filaments are intertwined with each other. In the entanglement process (hereinafter also referred to as I/L step).

The following effects can be obtained by the diluent and the intertwined drawn yarn of the present embodiment.

(1) The diluent of the present embodiment contains a surfactant for treating interlaced drawn yarns and a volatile diluent. When the total content ratio of the treatment agent for interlaced and drawn yarn and the volatile diluent in the diluent is set to 100 mass %, the treatment agent for interlaced and drawn yarn is contained in a ratio of 30 mass % or more and less than 94 mass %, and more than 30 mass %. A volatile diluent is contained in the ratio of 6 mass % and 70 mass % or less. In addition, in the diluent, the content of aluminum hydroxide, polyethyleneimine, and polyurethane resin in the treatment agent did not reach 5% by mass or more.

By applying the diluent to the drawn yarn, it is possible to suppress a decrease in energy efficiency. In addition, since the heating unevenness can be suppressed, the dyeability of the drawn yarn can be made favorable, and the improvement of the yarn quality can be achieved. In addition, the stability of the dilution liquid was favorable by making the content of aluminum hydroxide, polyethyleneimine, and polyurethane resin in the processing agent not to be 5 mass % or more in the dilution liquid. In addition, generation of fuzz during post-processing can be suppressed.

(2) When the concentration of the treatment agent in the diluted solution is low, the diluted solution is likely to be scattered by the air in the I/L step. In addition, when the concentration of the treatment agent in the diluent is high, the diluent will not be coated on the fibers and will fall from the coating device of the diluent, that is, so-called oil droplets are likely to be generated. In the diluent of the present embodiment, since the concentration of the treatment agent in the diluent is appropriate, scattering of the diluent in the I/L step and oil droplets in the coating apparatus of the diluent can be suppressed. Therefore, the treatment agent can be efficiently attached to the drawn yarn.

The above-described embodiment can be implemented with the following modifications. The above-described embodiments and the following modified examples can be implemented in combination with each other within a technically non-contradictory range.

- In this embodiment, the diluent is attached to the drawn yarn only after the drawing step, but the present invention is not limited to this. As long as the effects of the present invention are not inhibited, the dilution may be attached before the stretching step, in addition to the dilution on the stretching yarn after the stretching step.

- In the present embodiment, the diluent is attached to the drawn yarn after the drawing step and before the winding step, but the present invention is not limited to this. The diluent may be attached to the drawn yarn after the winding step.

- In the present embodiment, the stretching step is performed using two rolls of the first roll and the second roll, but it is not limited to this method. The stretching may be performed using three or more rolls. In addition, the roller for transfer may be used separately from the roller for drawing. That is, the stretching step may be performed using three or more rolls. In the form using three or more rolls, it is preferable to adhere the diluent of the present embodiment to the drawn yarn that has passed through the last roll.

・The interleaving step may be performed before the imparting step. That is, after the interlacing step of interlacing the drawn yarn after the spinning and drawing step, the applying step of applying the diluent of the treatment agent for synthetic fibers may be performed at a position between after drawing and before winding.

- In this embodiment, the treatment agent for interlaced drawn yarn contains a smoothing agent, but it is not limited to this form. The smoothing agent can also be omitted.

・In the diluent of the present embodiment, stabilizers, charge control agents, antistatic agents, thickeners, Antioxidants, UV absorbers, antifoaming agents (silicone-based compounds), and other components commonly used in treatment agents or diluents.

Example

Hereinafter, in order to demonstrate the structure and effect of this invention more concretely, although an Example etc. are given, this invention is not limited to these Examples. In addition, in the description of the following Examples and Comparative Examples, a part means a mass part, and % means a mass %.

Test Category 1 (Manufacture of Diluted Solution of Treatment Agent for Intertwined and Drawn Yarn)

(Example 1) Using each component shown in Table 1, the smoothing agent (A-1) was 30 mass %, the smoothing agent (A-2) was 30 mass %, the smoothing agent (A-5) was 10 mass %, and the nonionic interface Active agent (B-1) is 6 mass %, nonionic surfactant (B-2) is 5 mass %, nonionic surfactant (B-4) is 10 mass %, ionic surfactant ( C-1) was added to the beaker so that it was 4 mass %, the ionic surfactant (C-2) was 4 mass %, and the ionic surfactant (C-3) was 1 mass %. These were stirred and mixed well, and the processing agent (P-1) for interlaced drawn yarns was prepared.

The types, ratios, and total ratios of the smoothing agents, the types, ratios, and total ratios of nonionic surfactants, and the types, ratios, and total ratios of ionic surfactants used in the treatment agent for interlaced stretched yarns are shown in the table, respectively. 1 "Smoothing agent" column, "Nonionic surfactant" column and "Ionic surfactant" column.

Table 1

(Smoothing agent) A-1: Mineral oil (Kinematic viscosity at 30°C: 47 mm ² /s) A-2: Lauryl oleate A-3: Octyl palmitate A-4: Glyceryl trioleate A-5: Sorbitan Monooleate

(Nonionic Surfactant) B-1: Polyoxyethylene (10 mol) alkyl (12, 13 carbon atoms) ether B-2: Polyoxyethylene (20 moles) hydrogenated castor oil ether B-3: Polyoxyethylene (9 mol) alkyl (12 to 14 carbon atoms) ether B-4: Polyoxyethylene (5 mol) alkyl (12 to 14 carbon atoms) ether B-5: Polyoxyethylene (13 moles) polyoxypropylene (9 moles) butyl ether B-6: polyoxyethylene (55 moles) polyoxypropylene (43 moles) trimethylolpropane ether B-7: Polyoxyethylene (15 mol) polyoxypropylene (10 mol) alkyl (16, 18 carbon atoms) ether

(ionic surfactant) C-1: Potassium acetate salt C-2: Polyoxyethylene (3 mol) Lauryl Ether Phosphate Potassium Salt C-3: Pentadecanesulfonic acid sodium salt

(other ingredients) R-1: Aluminum hydroxide R-2: Polyethyleneimine R-3: Polyurethane resin

(volatile thinner) D-1: Ion-exchanged water D-2: Paraffin having 11 to 13 carbon atoms

Next, ion-exchanged water (D-1) was slowly added while stirring the treatment agent for intertwined and drawn yarns (P-1), and the amount of the treatment agent for intertwined and drawn yarns (P-1) was 45% by mass, ion-exchanged Water was mixed so that it might become 55 mass %, and the dilution liquid of the treatment agent for interlaced drawn yarns of Example 1 was prepared.

(Examples 2 to 15 and Comparative Examples 1 to 7)

The diluted solutions of Examples 2 to 15 and Comparative Examples 1 to 7 were prepared in the same manner as in Example 1 using each component shown in Tables 1 and 2.

It should be noted that the types and proportions of the treatment agent for interlaced and drawn yarns and the types and proportions of volatile diluents in the diluents of each example are shown in the columns of "treatment agents for interlaced and drawn yarns" and "volatile materials" in Table 2, respectively. Thinner" column.

Table 2

Test Category 2 (Manufacture of Interwoven Drawing Yarn)

Using the diluted solution of the treatment agent for interlaced and stretched yarns prepared in Test Category 1, interlaced and stretched yarns were produced.

First, as step 1, polyester fibers are melt-spun. Specifically, the chips of polyethylene terephthalate having an intrinsic viscosity of 0.64 and a titanium oxide content of 0.2% were dried by a conventional method, and then melt-spun using a melt extruder (extruder) at 295°C. The melt-spun fibers are solidified by cooling in air.

Next, as step 2, the melt-spun fibers were bundled by a guide, wound on a first roll heated to 80°C, and drawn at a yarn speed of 1500 m/min. Next, it was wound on a second roll heated to 130° C., and was rotated at a yarn speed of 4500 m/min, thereby extending three times between the first roll and the second roll.

Next, as step 3, the diluted solution of the treatment agent for interlaced drawn yarns produced in the test category 1 was applied to the drawn yarns by the guided oiling method using a metering pump. Specifically, an oil feed guide is used as a coating device for the diluent. The oil feed guide has a guide body in contact with the moving fibers, and the guide body is provided with a discharge hole (oil feed nozzle). It is comprised so that the diluent of this embodiment may be discharged|emitted from this discharge hole, and it adheres to a fiber. In the application step, the application was performed so that the adhesion amount of the treatment agent for interlaced drawn yarns became the target treatment agent adhesion amount (% by mass) in Table 2. It should be noted that the above-mentioned oil feeding and guiding device may be replaced by a spinning device that applies a diluent to the drawn yarn at a position after the spun yarn is drawn and before winding.

In addition, in Comparative Examples 3 and 4, the applying step was performed before the stretching step instead of the applying step after the stretching step.

Next, as step 4, the I/L step is performed by blowing air from an entanglement nozzle (hereinafter also referred to as an I/L nozzle) to the drawn yarn to which the diluted solution of the treatment agent for entangled drawn yarn adhered. As step 5, the fiber subjected to the I/L step is wound on a winder. The resulting interwoven drawn yarn was a polyester fiber of 83.3 dtex (75 denier) 36 filaments.

The position of the oil feeding nozzle, the wire speed during oil feeding, and the target treatment agent adhesion amount in the oil feeding conditions of each example are shown in the column of "position of oil feeding nozzle", the column of "wire speed when oil feeding" and the "target treatment agent adhesion amount" in Table 2, respectively. " column.

Test Category 3 (Evaluation)

With respect to the diluted solutions of the treatment agents for interlaced drawn yarns of Examples 1 to 15 and Comparative Examples 1 to 7, stability to the diluted solution, scattering near the I/L nozzle, oil droplets in the oil feed guide, for interlaced drawn yarns The adhesion of the filaments, the dyeability of the interlaced drawn yarn to which the treatment agent was attached, the energy efficiency in the first roll, and the presence or absence of fluff in the post-processing were evaluated. The procedure of each experiment is shown below. The test results are shown in Table 2 under "diluent stability", "scattering in I/L", "oil drop", "adhesion", "dyeability", "energy efficiency", and "post-processing fluff" column. In addition, the kinematic viscosity of the diluted solution was measured by a known method under the condition of 30° C. using a Cannon-Fenske viscometer.

(diluent stability) The diluted solution prepared in the test category 1 was left to stand at 30°C, and the appearance after 24 hours was visually confirmed. Evaluation was performed according to the following criteria.

・Evaluation criteria for diluent stability ○ (good): uniform and transparent as in the case of preparation × (defective): When turbidity, particulate matter, or sediment is observed

(scattering in I/L) In step 4 of test category 2, the scattering amount of the dilution liquid confirmed in the vicinity of the I/L nozzle was visually observed, and evaluated according to the following criteria.

・Evaluation criteria for scattering in I/L ◎ (good): No scattering was confirmed 〇 (Normal): Slightly confirmed scattering × (defective): Considerable scattering was observed

(oil drop) In step 3 of test category 2, the frequency of dripping of the diluent supplied from the guide body of the oil feed guide device without adhering to the fibers was visually observed, and evaluated as the number of drips per minute according to the following criteria .

・Evaluation criteria for oil droplets ◎ (good): 0 times 〇 (normal): 1 to 2 times × (defective): 3 times or more

(adhesion) The polyester fiber obtained in step 5 of test category 2 was subjected to measurement of the adhesion amount of the treatment agent for interlaced drawn yarn, and the adhesion according to the target adhesion amount was recorded as 100%, and the evaluation was performed according to the following criteria.

・Evaluation criteria for adhesion ◎(Good): 95% or more 〇 (general): 85% or more, less than 95% × (defective): less than 85%

It should be noted that, regarding the adhesion amount of the treatment agent for interlaced drawn yarns, the mass of the drawn yarns per unit length before and after the applying step was measured, and the adhesion was calculated from the content ratio of the treatment agent for interwoven drawn yarns in the diluent. quantity.

(dyeing) Using the polyester fiber obtained in step 5 of test category 2, a knitted fabric having a diameter of 70 mm and a length of 1.2 m was produced by a tubular knitting machine. The produced knitted fabric was dyed by a high pressure dyeing method using a disperse dye. The dyed knitted fabric is washed with water, reduction washing, and dried according to a conventional method (for example, refer to JP 2015-124443 A). The knitted fabric was installed in a cylinder made of iron having a diameter of 70 mm and a length of 1 m, and the surface of the knitted fabric was visually observed, and the fraction of the heavily dyed portion was counted. The same evaluation was performed 5 times, and the average value of the scores of the heavily stained parts counted in each time was evaluated according to the following criteria. Round the average to the nearest decimal point. In addition, the unevenness of heat history was evaluated by the evaluation of dyeability since the heavy dyeing part was generated by heating unevenness.

・Evaluation criteria for dyeability ◎ (good): 0 points 〇 (normal): 1 to 2 points × (defective): 3 points or more

(energy efficiency) The temperature conditions of the first roll in Step 2 of Test Category 2 were changed, and the minimum temperature for satisfying "⊚" in the evaluation of the dyeability described above was verified. The lower the minimum temperature, the better the energy efficiency, and the evaluation was performed according to the following criteria.

・Evaluation criteria for energy efficiency ◎(good): When 78°C or lower ○ (General): When the temperature is higher than 78°C and 84°C or lower × (defective): When the temperature is higher than 84°C

(post-processing fluff) 10 packages of interwoven and stretched yarns obtained in test category 2 were assembled on a micro warping machine simulating a warping machine. Minute wire speed coiling for 24 hours. Immediately before winding at this time, the number of fluffs for 4 hours was measured with a fluff counting device (trade name DT-105 manufactured by Toray Engineering Co., Ltd.), and post-processing fluff was evaluated according to the following criteria.

・Evaluation criteria for post-processing fluff ◎ (good): When the number of fluffs in 4 hours is 0 to 2 〇 (General): When the number of fluffs in 4 hours is 3 to 9 × (defective): When the number of fluffs in 4 hours is 10 or more

From the results of Table 2, according to the present invention, scattering and oil droplets in the I/L can be suppressed, and the adhesion can be improved. Therefore, the treatment agent for interlaced drawn yarns can be efficiently adhered to the drawn yarns. In addition, by suppressing uneven heating, the dyeability can be improved. In addition, the energy efficiency for making the silk quality good is improved. Moreover, dilution stability is favorable, and generation|occurrence|production of fluff in post-processing can be suppressed favorably.

Claims (12)

A diluent of a treatment agent for interlaced and stretched yarns, comprising a treatment agent for interwoven and stretched yarns and a volatile diluent comprising a surfactant, characterized in that: In the above-mentioned treatment agent for interlaced and stretched yarn, the content of aluminum hydroxide, polyethyleneimine and polyurethane resin does not reach 5% by mass or more, When the total content ratio of the treatment agent for interlaced and drawn yarn and the volatile diluent in the diluent is 100 mass %, the treatment agent for interlaced and drawn yarn is contained in a ratio of 30 mass % or more and less than 94 mass % and the above-mentioned volatile diluent is contained in a ratio of more than 6 mass % and 70 mass % or less. The diluent of the treatment agent for interwoven and stretched yarns according to claim 1, wherein Aluminum hydroxide, polyethyleneimine, and polyurethane resin were not mixed with the above-mentioned treatment agent for interlaced and drawn yarns. The diluent of the treatment agent for interwoven and drawn yarn according to claim 1 or 2, wherein the kinematic viscosity at 30°C is 10 mm ² /s to 1000 mm ² /s. The diluted solution of the treatment agent for interlaced drawn yarn according to any one of claims 1 to 3, wherein When the total content ratio of the above-mentioned treatment agent for interlaced and drawn yarn and the above-mentioned volatile diluent in the diluent is set to 100% by mass, the above-mentioned treatment agent for interlaced and drawn yarn is contained in a ratio of 35% by mass to 70% by mass, and The said volatile diluent is contained in the ratio of 30 mass % - 65 mass %. The diluted solution of the treatment agent for interlaced drawn yarns according to any one of claims 1 to 4, wherein The above-mentioned volatile diluent contains water. The diluted solution of the treatment agent for interlaced drawn yarns according to any one of claims 1 to 5, wherein The surfactant includes an ionic surfactant, and the ionic surfactant includes at least one selected from the group consisting of fatty acid salts, organic phosphates, organic sulfonates, amphoteric compounds, and quaternary ammonium salts. The diluent of the treatment agent for interwoven and stretched yarns according to claim 6, wherein The above-mentioned surfactant further contains a nonionic surfactant, When the total content ratio of the nonionic surfactant and the ionic surfactant in the treatment agent for interlaced and stretched yarns is 100% by mass, the treatment agent for interlaced and stretched yarns is 80% by mass to 99.9% by mass. It contains the said nonionic surfactant in the ratio of 0.1 mass % - 20 mass %, and contains the said ionic surfactant in the ratio of 0.1 mass % - 20 mass %. The diluent of the treatment agent for interwoven and stretched yarns according to claim 6, wherein The above-mentioned treatment agent for interlaced and drawn yarn further contains a smoothing agent, and the above-mentioned surfactant further contains a nonionic surfactant, When the total content of the above-mentioned smoothing agent, the above-mentioned nonionic surfactant, and the above-mentioned ionic surfactant in the above-mentioned treatment agent for interlaced and drawn yarns is 100% by mass, the amount of the above-mentioned treatment agent for interlaced and drawn yarns is 30% by mass The said smoothing agent is contained in the ratio of -80 mass %, the said nonionic surfactant is contained in the ratio of 5 to 69.9 mass %, and the said ionic surfactant is contained in the ratio of 0.1 to 20 mass %. A kind of manufacture method of interweaving extension filament, it is characterized in that: In a series of spinning, drawing and winding steps including a spinning and drawing step in which synthetic fibers are spun and drawn, and a winding step in which the drawn yarn obtained in the spinning and drawing step is taken up, After the spinning and drawing step and before the winding step, a step of applying a diluent of the treatment agent for interlaced drawn yarn according to any one of claims 1 to 8 to the drawn yarn, and an interlacing step of performing interlacing treatment are included. . The manufacturing method of the interwoven stretched yarn as claimed in claim 9, wherein In the above-mentioned applying step, the diluted solution of the above-mentioned treatment agent for interlaced and drawn yarns is applied to the above-mentioned drawn yarns in a ratio of 0.1% by mass to 3.0% by mass as the treatment agent for interlaced and drawn yarns. The manufacturing method of the interwoven stretched yarn according to claim 9 or 10, wherein The adhesion amount of the treatment agent for synthetic fibers with respect to the yarn before drawing in the spinning and drawing step is less than 0.2 mass %. The method for producing an interwoven drawn yarn according to any one of claims 9 to 11, wherein The winding speed of the drawn yarn in the above-mentioned winding step is 3500 m/min or more.