JPH0784707B2 - Oil agent composition for untwisted non-paste woven fabric warp and high-speed yarn making method using the oil agent composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is directed to cooling and oiling melt-spun yarns, and
An oil agent composition suitable for producing a warp for a non-twisted and non-paste woven fabric by a high-speed yarn-forming method in which a fluid is entangled and subsequently drawn or wound at a high speed without being substantially drawn, and a high speed using the same The present invention relates to a yarn making method.

More specifically, it relates to an oil agent composition effective for reducing various troubles caused by oil agent scattering during high-speed spinning and for reducing reed stains during weaving due to a water jet loom.

[Prior Art] Thermoplastic synthetic fibers such as polyamide fibers and polyester fibers, which are used for warp of untwisted and non-paste weaving, are produced by a melt spinning method, but cooling after melt spinning in the yarn making process. Following solidification, a water-based or non-water-based oil solution is generally applied. The oil solution applied during spinning imparts smoothness and bundleness to the yarn, prevents problems such as electrostatic damage and yarn breakage during yarn making, and reduces weaving efficiency due to yarn breakage during water jet loom weaving. Necessary to prevent.

And, this spinning oil agent is generally composed mainly of a smoothing agent such as mineral oil and fatty acid ester, and an alkali metal salt of partially oxidized polyethylene wax as a sizing agent is mixed,
Furthermore, if an emulsifier, an antistatic agent, a sizing agent, etc. are blended as necessary, and when refueling with a water-containing system, the concentration is usually 5-25.
It is used as a water emulsion of about wt%.

Further, in recent years, a high-speed spinning method has been widely used in which the spinning speed is drastically increased to about 3500 to 6000 m / min or more, and a water emulsion type spinning oil agent has also been used in this high-speed spinning method. .

[Problems to be Solved by the Invention] However, in this high-speed yarn-making method, the traveling yarn speed is high, and moreover, as the entanglement treatment is carried out after the treatment with the oil agent, the oil agent falls off or scatters from the traveling yarn. The amount increases remarkably, and the oil agent that falls off and scatters adheres to the equipment on the yarn path and causes equipment contamination. Then, when the yarn runs in contact with the dirty device at a high speed, problems such as yarn breakage and fluffing occur. In particular, this problem was remarkable when an oil agent composition containing a mineral oil or a leveling agent of a fatty acid ester as a main ingredient of the oil agent, and further containing a partially oxidized polyethylene wax was supplied with a water emulsion.

The contamination of the surrounding device can be improved to some extent by limiting the scattering range of the oil agent, but no effective means has been found for the oil agent contamination of the device (guide etc.) on the yarn path, so that the guide etc. There was no choice but to clean the equipment fairly often to remove oil deposits.

Furthermore, the oil agent composition for this untwisted, non-paste woven fabric warp,
Since it contains an alkali metal salt of partially oxidized polyethylene wax, when weaving in a water jet loom, the amount of oil agent that is washed off with jet water and adheres to reeds and heddle is relatively large. There was a problem that fluffing and loom stoppage were triggered. As a countermeasure against this, a method of frequently cleaning the reed and the heddle has been generally used.

Therefore, the present invention suppresses troubles such as yarn breakage and fluffing caused by the adhered oil agent even when the scattered oil agent adheres to devices (guides, etc.) on the yarn path during high-speed spinning by improving the oil agent composition. That is the first purpose. further,
When weaving a warp for a non-twisted non-paste woven fabric that is spun at high speed using the oil agent composition in a water jet loom, the oil agent that has fallen off with water represses and suppresses an obstacle such as fluffing of the warp due to accumulation in running. That is the second purpose.

Another object of the present invention is to provide an oil agent composition which can reduce dirt attached to devices such as guides and is effective for reducing the frequency of cleaning the devices.

[Means for Solving the Problems] In order to achieve this object, the present invention contains a smoothing agent and an emulsifier, and the amount is 15 to 60 relative to the total amount of the oil agent composition.
What is claimed is: 1. An oil agent composition containing a polyether ester compound in an amount of 3% by weight and an alkali metal salt of a partially oxidized polyethylene wax in an amount of 3 to 30% by weight, and the oil agent composition is a water mixed solution having a water content of 15 to 60% by weight. In the invention of claim 1, an untwisted non-paste woven fabric warp yarn oil composition having a maximum water viscosity of 2 × 10 ⁴ centipoise or less is provided, and the polyether ester compound has a degree of polymerization of 2 or more in the molecule. The untwisted non-paste textile warp oil agent composition according to claim 1, which is a compound having a polyether chain according to claim 1, both ends thereof being blocked with an aliphatic compound, and having a hydrophilicity (HLB) of 6 to 10. Claim 2
In addition, the melt-spun yarn is cooled, a water-emulsion type oil agent is applied, a fluid entanglement treatment, and further 3000 m /
2. The water emulsion type oil agent as a water-emulsion type oil agent in a high-speed spinning method, wherein the water emulsion-type oil agent is wound at a high speed of 3500 m / min or more without being stretched or subsequently drawn at a high speed of at least 3 minutes. A third aspect of the present invention is a high-speed spinning method using a water emulsion containing the above oil agent composition as an oil active ingredient.

As described above, the high-speed spinning method according to the present invention includes cooling the spun yarn, applying an oil agent, fluid confounding, and further drawing at a high speed of 3000 m / min or more, followed by subsequent stretching, or substantially. A method of winding at a high speed of 3500 m / min or more, preferably 4000 m / min or more without stretching, for example, Japanese Patent Publication No. 1-22.
No. 363, JP-A-60-94616, and the like.

The fluid entanglement process in this high-speed spinning method is usually performed by air entanglement with high-pressure air. As the entanglement nozzle, a nozzle that entangles the yarn with a turbulent flow of high-pressure air is used. The entanglement number varies depending on the number of filaments, the thickness (denier), and the intended use, but generally it is 3 to CF value. It is preferably about 50. Other fluid entanglement means may be used as long as the running yarns can be prevented from being separated. If this entanglement is not applied, the yarns are separated during the yarn making, the reverse winding around the godet roller and the fluctuation of the winding tension are likely to occur, and the yarn breakage and fluffing during the yarn making are increased. Furthermore, since fluff and yarn breakage due to yarn shake during the warping process are likely to occur frequently, it is necessary to provide entanglement during yarn production.

The present invention provides an oil agent composition (claims 1 and 2) suitable for use in such a high-speed yarn making method, and at the same time, the above oil agent composition as a water emulsion type oil agent to be applied before the confounding treatment in this high-speed yarn making method. The present invention provides a yarn making method (claim 3).

The oil agent composition for untwisted non-paste woven fabric warps according to claim 1, contains a smoothing agent and an emulsifier, and is 15 to 60% by weight based on the total amount of the oil agent composition.
To 30% by weight of an oil agent composition containing an alkali metal salt of partially oxidized polyethylene wax, and the maximum value of hydroviscosity when the oil agent composition is made into a water mixed solution having a water content of 15 to 60% by weight. Is less than 2 × 10 ⁴ centipoise.

Here, as the smoothing agent, a compound that is hydrophobic and exhibits high smoothness, such as mineral oil and / or fatty acid ester, is used.

Examples of the mineral oil include naphthene-based and paraffin-based mineral oils and mixtures thereof. Further, as the fatty acid ester, butyl laurate, lauryl laurate, octyl palmitate, tridecyl palmitate,
Examples thereof include monoesters such as tridecyl oleate and tridecyl stearate, diesters such as dioctyl sebacate, dioleyl sebacate, didecyl adipate, and ditridecyl sebacate, but are not limited thereto.

These leveling agents may be used alone or as a mixture of two or more kinds, but the total amount thereof is preferably 20 to 80% by weight. If the blending amount of this smoothing agent is too small, it is difficult to obtain the smoothness required for knitting and weaving. On the other hand, if the amount is too large, the water-emulsifying property is deteriorated and there is a problem in the stability after blending the oil emulsion, which makes it difficult to put into practical use. Furthermore, the blending amount of the leveling agent is
30 to 70% by weight is preferred.

Further, the alkali metal salt of the partially oxidized polyethylene wax to be added for imparting the sizing property required for the untwisted non-paste woven fabric warp is a partially oxidized polyethylene which is a salt of an alkali metal such as potassium or sodium. , Its acid value is
The molecular weight is preferably about 10 to 30 and about 1000 to 5000. The partially oxidized polyethylene wax alkali metal salt is used by being finely dispersed in water with a surfactant.

Furthermore, the blending of the polyetherester compound is necessary to reduce the hydroviscosity of the oil agent composition, and the blending amount thereof needs to be in the range of 15 to 60% by weight based on the entire oil agent composition. If the blending amount is too small, it is difficult to obtain a desired low water-viscosity characteristic, and conversely, if the blending amount is too large, the friction characteristic becomes too high, which is unsuitable for high-speed yarn making and knitting fabrics.
Further, the blending amount thereof is preferably 20 to 45% by weight.

The polyether ester compound as used herein is a compound having a polyether chain having a degree of polymerization of 2 or more which is substantially polyethylene oxide in the molecule and having both ends blocked with an aliphatic compound. Above all, it is preferable to select the number of moles of ethylene oxide added and the type of the aliphatic compound so that the hydrophilicity (HLB) represented by the following formula is 6 to 10 in order to increase the effect of decreasing the hydroviscosity.

Hydrophilicity (HLB) = (molecular weight of hydrophilic component / molecular weight of polyether ester compound) × 20 That is, when the ethylene oxide addition mole number is relatively large, it is preferable to use a compound having a relatively large carbon number. Furthermore, the number of moles of ethylene oxide added is
It is generally preferred that the aliphatic compound has 10 or less carbon atoms and 14 or less carbon atoms.

Examples of the polyether ester compound include, for example, lauryl ester and octyl ester of butyl alcohol ethylene oxide adduct, lauryl ester and octyl ester of lauryl alcohol ethylene oxide adduct, ethylene oxide adduct of aliphatic compound having 14 or less carbon atoms. Examples thereof include organic acid esters, and esters of polyethylene oxide dilaurate and dioctanoate having a degree of polymerization of 8 with a degree of polymerization of 2 to 10 and fatty acids having up to 14 carbon atoms. Further, the above compounds may be arbitrarily mixed and blended.

Furthermore, examples of the nonionic surfactant mainly composed of an emulsifier include known ethylene oxide adducts of active hydrogen-containing compounds such as higher fatty acids, aliphatic alcohols and polyhydric alcohols. Substantial ethylene oxide adducts of natural alcohols such as tallow alcohol and castor oil may also be used. The number of moles of ethylene oxide added is preferably about 3 to 10 moles.

In addition to the above-mentioned leveling agent and emulsifier, components such as an antistatic agent, an antistatic auxiliary, a sizing agent, and a preservative, which are usually used in spinning oils, may be added.

The hydroviscosity characteristic specified in the present invention is measured by the following method.

An oil agent composition (containing substantially no water) obtained by mixing the components is placed in a beaker, and normal temperature water is added thereto in predetermined amounts with stirring and mixed sufficiently. The viscosity of a sufficiently mixed water mixed solution is measured by an E-type viscometer (manufactured by Tokyo Keiki Co., Ltd.), and the measured value is displayed in centipoise. The measurement may be performed under low shear conditions in which the rotational speed of the viscosity system is set to a low level according to the viscosity level. For example, when the viscosity is 10,000 to 100,000 centipoise, the rotational speed is preferably about 0.5 rpm. Then, each time a predetermined amount of normal temperature water is sequentially added, its viscosity is measured, and the maximum value of the measured values is taken as the maximum value of water viscosity.

The method of refueling is a normal method, for example, a roller refueling method,
A guide lubrication system, etc. that quantitatively supplies oil from the nozzle,
Can be used.

The polymers used for high-speed spinning are all melt-spinnable polymers, but in general, polyamides such as nylon 6 and nylon 66, polyesters such as polyethylene terephthalate and polybutylene terephthalate can be mentioned.
In particular, the present invention is effective for high-speed polyamide spinning.

[Operation] In high-speed spinning, the speed of the running yarn depends on the take-up speed.
High speed of 3000 m / min or more and winding speed of 3500 m / min or more,
Since it may run at a high speed of 6000 m / min or more, an optimum oil agent composition cannot be obtained from the same viewpoint as the oil agent composition applied to the yarn at a low speed.

That is, in high-speed spinning, after the spinning oil agent emulsion is applied to the yarn immediately after spinning cooling, vibration of the yarn running at high speed, contact with guides, and further to provide essential entanglement for high-speed yarn production. Due to the high-pressure fluid being blown off from the fluid entanglement nozzle, the thread-adhering oil agent is often dropped and scattered. The oil emulsion that has fallen off and scattered and adhered to the devices becomes an extremely highly viscous (hard paste or solid) deposit when water evaporates over time and reaches a specific water content. When the highly viscous deposits are successively accumulated on the yarn contacting portion on the device, the yarns that are in contact and traveling at a high speed become a great resistance, which causes troubles such as yarn breakage and single yarn breakage. This trouble occurs remarkably when a spinning oil for untwisted non-paste woven fabric warps, which is mainly composed of a smoothing agent of mineral oil or a fatty acid ester and which is mixed with a partially oxidized polyethylene wax as a sizing agent, is used.

This highly viscous deposit is also generated in the case of a spinning process in which the yarn traveling speed is as low as about 2000 m / min or less, but because of the low speed, the amount of the oil emulsion dispersion itself is relatively small, and high Even if the viscous material accumulates, the yarns traveling at a relatively low speed come into contact with each other, so that serious troubles such as yarn breakage were hardly induced. That is, generally 20 ~
A water mixture of an oil agent tends to have high viscosity in a water content range of about 60% by weight, but the oil agent emulsion applied to the yarn is usually used at a relatively low concentration of about 15% by weight or less. However, the maximum value of the hydroviscosity of the oil agent has not been considered at all until now.

Moreover, even the oil composition used in the known example relating to the high-speed spinning method does not consider the hydroviscosity property at all,
In the oil agent composition containing the leveling agent and the alkali metal salt of partially oxidized polyethylene wax, the maximum value of the hydroviscosity was extremely high, and the oil agent composition different from the present invention was used.

When an oil agent composition having the maximum value of water viscosity specified in the present invention of 2 × 10 ⁴ centipoise or less, preferably 8 × 10 ³ centipoise or less is used as a water emulsion, it is scattered during spinning and adheres to devices such as guides. Even if water evaporates over a long period of time, the resulting oil solution remains in a soft paste form, so even if the yarns run at high speed, it does not cause problems such as yarn breakage or fluffing. Therefore, these troubles can be greatly reduced. Furthermore, it is possible to reduce the frequency of cleaning devices such as guides during yarn making,
It also becomes easier to remove oil stains during cleaning, which facilitates cleaning work.

Moreover, in order to obtain the above-mentioned specific level of hydroviscosity characteristics, it is necessary to blend a specific amount of the polyether ester compound, and the blending of this polyether ester compound should inhibit the stability and smoothness of the oil agent. Therefore, it is useful as a means for reducing the viscosity of water.

As described above, in the present invention, yarn breakage in the high-speed yarn manufacturing method,
In order to eliminate troubles such as fluffing, it has been made based on the novel finding that it is effective to specify an oil agent composition based on its hydroviscosity characteristics and oil agent composition.

Further, the oil agent composition having a low water viscosity is such that even if the oil agent component is washed off with jet water during water jet loom weaving and the oil agent component adheres to the reed or heddle, the adhered oil agent does not harden with time. Since it remains in the form of a soft paste, it is hardly washed away by the jet water and accumulated, and the adverse effect of the attached oil agent on the running yarn is significantly reduced. And
Cleaning work of reeds, guides, and healds is easy, and the cleaning cycle can be greatly extended.

[Example] In the ethylene oxide addition compound used in the following examples,
The n-mol-added ethylene oxide is represented by (EO) n, and its weight average molecular weight is represented by Mw.

Example 1 Nylon 66 polymer (98% sulfuric acid relative viscosity 2.60) was fed to an extruder type melt spinning machine, melted and discharged from a spinneret, and then a 15% water emulsion of the oil agent composition shown in Table 1 was fed by an oiling roller. (The amount of oil applied to the wound yarn is
1.0% by weight), after being entangled by an air entanglement nozzle using compressed air of 3 kg / cm ² , it is taken up by a godeye roller for 54200 minutes,
It was drawn 1.25 times and wound at 5000 m / min to obtain a nylon 66 yarn of 30 denier 10 filament.

As an oil agent composition containing a smoothing agent and a partially oxidized polyethylene wax metal salt, which is given at the time of this yarn production, various oil agents having different maximum values of hydrolysis viscosity, etc. (No. A to J in Table 1: oil agent composition ratio in% by weight) (Shown) was adjusted and used. Then, the degree of dirt accumulation in the guide below the oil supply roller was visually judged and the number of yarn breakages (times / ton) during spinning was measured, and the results are shown in Table 1.

Further, the obtained nylon 66 yarn was used as a warp, and after warping and beaming by a usual method, it was woven with a water jet loom. Then, the degree of accumulation of stains on the reed and the heddle is compared and judged by the naked eye, and 1
Weaving property was evaluated by measuring the number of times the table was stopped per day.

As shown in Table 1, when an oil agent composition having a proper amount of polyether ester compound and a maximum hydroviscosity of 2 × 10 ⁴ centipoise or less was used (No. A to D), after refueling Although the oil agent is scattered due to the air entanglement, etc., the viscosity of the oil agent emulsion dirt that has fallen off and scattered and adhered to the device is not seen over time, and the oil agent that has adhered to the guide also drops sequentially. Therefore, the amount accumulated on the guide was slight, there was little yarn breakage during spinning, and stable high-speed spinning with sufficient air entanglement could be performed. Further, there were few stains on the reed and heddle and the loom stop at the time of weaving the water jet loom, and the weavability was good.

When an oil agent composition is used in which the polyether ester compound is not compounded or the compounding amount is too small and the maximum value of the hydroviscosity exceeds 2 × 10 ⁴ centipoise (No.G, I)
The oil emulsion dropped and spattered during the yarn making and adhered to the device became a hard paste in 7 to 8 hours and adhered to the yarn guide, and the yarn breakage increased with time.
Moreover, the number of stops in the weaving process was large, and the yarn had poor weavability.

When a polyetherester compound having a hydrophilicity (HLB) of 6 to 10 is not used (No. E, F), it is difficult to sufficiently reduce the water viscosity, and the maximum water viscosity is 2 ×. It was difficult to lower it below 10 ⁴ centipoise.

Furthermore, when an oil agent composition containing too much polyether ester compound is used (No. H) even if the maximum value of water viscosity is 2 × 10 ⁴ centipoise or less, smoothness deteriorates and fluff during weaving occurs. Since it occurs frequently, it was unsuitable as a raw yarn for woven warp yarns.

When the yarn is produced without the fluid entanglement treatment (No. J), even if a highly viscous oil agent other than the present invention is used, there is little adverse effect due to scattering or adhesion of the oil agent such as guide dirt, but many yarn breaks during spinning, Moreover, there is a big problem that the weavability is deteriorated.

[Effects of the Invention] According to the method of the present invention, even when a water emulsion type spinning oil formulation containing a partially oxidized polyethylene wax alkali metal salt is applied and confounding treatment is performed in high-speed spinning, yarn breakage caused by falling off or scattering of the oil formulation is achieved. Trouble such as fluff and fluff can be greatly reduced. Further, it is possible to significantly reduce the contamination of the device such as the lower part of the oil supply roller and the guides, thereby reducing the frequency of cleaning the devices and facilitating the cleaning work.

In addition, the obtained warp yarns significantly reduce the stains on the reeds and the healds when weaving in the water jet loom, and also significantly reduce the occurrence of fluff due to the warp yarns, which significantly reduces the number of stops. it can.

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Claims (3)

[Claims] 1. In addition to containing a leveling agent and an emulsifier,
An oil agent composition comprising 15 to 60% by weight of a polyether ester compound and 3 to 30% by weight of an alkali metal salt of a partially oxidized polyethylene wax with respect to the total amount of the oil agent composition, and the oil agent composition containing water. An oil agent composition for non-twisted and non-paste woven fabric warps, wherein the maximum value of hydroviscosity in a water mixture having a ratio of 15 to 60% by weight is 2 × 10 ⁴ centipoise or less. 2. The polyether ester compound has a polyether chain having a degree of polymerization of 2 or more in the molecule, both ends thereof are blocked with an aliphatic compound, and has a hydrophilicity (HLB) of 6 to 10. It is a compound which has, The oil agent composition for untwisted non-paste textile warp yarns of Claim 1 characterized by the above-mentioned. 3. A melt-spun yarn is cooled, a water-emulsion type oil agent is applied thereto, a fluid entanglement treatment is carried out, and the yarn is taken up at a high speed of 3000 m / min or more, and subsequently drawn or substantially drawn. Without a high-speed spinning method of winding at a high speed of 3500 m / min or more, as the water emulsion type oil agent,
A high-speed spinning method comprising using a water emulsion containing the oil agent composition according to claim 1 as an oil agent active ingredient.