KR920001431B1 - Preparation method of lubricant for preparing of non-sizing yarn - Google Patents

Abstract

The oiling agent is composed of 70-80 wt.% of lubricating agent and polyethylene wax, 10-20 wt.% of modified ester compound of formula (I) and 5-10 wt.% of polyakylene oxide alkylether phophate of formula (II). In the formulas, R1 is fatty acid; R2 is acyl or alkyl; R3 is alkyl; M is monovalent metal; 4 <= n <= 6; 10 <= m <= 30; 3 <= a+b <= 8; 0.5 <= a/b <= 1. The oiling agent is used in the warp treatment of a thermoplastic synthetic filament non- sizing yarn comprising polyester (or polyamide) and linear polymer.

Description

Process for preparing emulsions for apexe

The present invention relates to a method for preparing an emulsion for the production of an affinity synthetic fiber filament yarn used for weaving a water jet loom (WJL), that is, a thermoplastic synthetic filament amulet of polyester or polyamide and linear polymer It is a manufacturing method of emulsion for decanting.

In general, when synthetic fibers are manufactured by melt spinning, various surfactants are formulated in the leveling agent such as mineral oil or ester in order to smooth yarn manufacturing process and post-processing process by giving yarn smoothness, antistatic property and focusing property. Although an oil agent is given, in particular, as a warp weaving oil weaving machine, there is no problem such as cutting or wool in the yarn manufacturing process, and an oil agent having good compatibility with the oil agent is selected and used in the application process.

In the weaving preparation process, the purpose of the arc part is to improve the weaving operation rate and the quality of the fabric by imparting strong focusing and smoothness to the yarns and preventing the occurrence of cow wool during weaving. Generally, PVA and polyacrylic acid esters I am used alone or in combination. However, if this call process can be omitted, various proposals for omission of the call process have been proposed since the cost saving effect by the process shortening is large.

Conventional adverb adverb manufacturing method has been known the following methods. In other words, there is a method to focus yarn by mechanically giving lectures of 100 ~ 800T / M by giving a yarn, but the lecturer manufactured by this method is hard and the fabric is hard. As a result, the cost increase associated with lectures has no substantial effect.

Also, a method of making a direct abutment joint by applying a focusing agent at the time of supplying the emulsion immediately after the spinning of the yarn has been proposed.

For example :

1) In the spinning emulsion, polyethylene wax or paraffin wax is mixed with a spinning agent and treated in a spinning yarn. However, in order for the wax compound to exhibit sufficient focusing in the weaving process, the amount of wax must be large. In the yarn manufacturing process, scum is attached to the heald or body during fixing of the stretching roller and weaving, and weaving of the body decreases the weaving property. In the refining process, before dyeing, the hydrophilicity is weak, so it remains on the woven fabric without being completely cleaned, thereby degrading the quality of the woven fabric, and also causes the dyeing spot after dyeing.

2) There is a method of treating PSA-based or polyacrylic acid esters used in the blowing process by mixing the spinning oil with the spinning oil to treat the spinning yarn, but this method can give the yarn to the yarn, but especially during the yarn manufacturing process. In addition to the significant occurrence of woolen yarn to reduce the quality and productivity of the yarn as well as these hoes are generally weak in water resistance, there is a problem of dropping the quality of the woven fabric to drop out of the woven fabric when weaving with a water jet loom.

3) The addition of other melamine or urea-based polymerizable substances to the spinning emulsion or the method of imparting the reactants of polyethylene and polyethylene oxide to the yarns, although these methods are omitted in the weaving process. In addition to the problems, there are drawbacks that cause problems in the spinning and stretching process.

In addition, if the focus on spinning and stretching processes, weaving problems in the weaving process will cause a problem of lack of focusing, reducing the weaving efficiency and the fabric quality.

As a result of earnestly examining various problems as described above, the present inventors have found that the most suitable water jet weaving weaving yarn for weaving yarn is the most ideal water jet weaving weaving yarn for weaving no-weaving yarn. By providing proper smoothness and antistatic property in the process, we make the weaving process smoothly, and in the weaving process, we give smoothness and converging property, so that it is clean in the refining process, which is the process before dyeing, without lowering the weaving operation rate by wool and cutting. The present invention has been completed by focusing on satisfying necessary and sufficient conditions to be cleaned.

The present invention is a compound having a structure of the following formula (I) which is a modified ester in the emulsion composition containing a smoothing agent component and polyethylene wax when melt spinning the synthetic fiber 10 to 20% by weight and the formula (II) 5 to 10% of the compound having a structure of the total composition is blended to form an emulsion composition, which is characterized in that it is attached to 0.5 to 2.0% by weight with respect to the spinning yarn and then stretched.

Hereinafter, the present invention will be described in more detail.

In general, the main process of manufacturing fabrics can be divided into weaving, weaving, and dyeing, and the weaving process can be subdivided into spinning and stretching.

[Formula I]

[Formula II]

The composition according to the present invention is treated to unstretched yarn or stretched yarn when the synthetic fiber is produced by melt spinning, and it is particularly preferable to process the spinning process during the weaving process.

On the other hand, the emulsion composition prepared according to the method of the present invention is treated with an undrawn yarn released from the spinneret using an oil roller or an oil jet with an aqueous emulsion of 5 to 20%.

As the leveling agent component used in the present invention, a known one can be used. Generally, mineral fiber, fatty ester, polyether or the like is used.

The polyethylene wax used in the present invention preferably has an acid value of 10 or more.

On the other hand, in the present invention, unlike the conventional method in which the paraffin wax or polyethylene wax compound is used alone or in combination, the modified ester phosphorus divalent fatty acid ester alkylene oxide addition metal is added and used in combination with the conventional use of excess wax. It improves various problems such as deterioration of workability due to poor cake foam, generation of scum during weaving, dyeing of fabrics caused by dyeing process due to incomplete deoiling in refining process, and excellent oil film strength and hydrophilicity. By adding and using polyalkylene oxide alkyl ether phosphoric acid ester salt, it is possible to improve the operability due to the oil film strength attached to the yarn during spinning, stretching, and warping process, and to improve the yarn quality. It shows good weaving efficiency and provides excellent touch and quality products. The can.

The addition amount of the modified ester used in this invention needs to be 10 to 20% of the composition of the whole this invention, and 10 to 15 weight% is especially preferable.

If the added amount is less than 10%, sufficient effect cannot be obtained in the weaving process and weaving process. If the amount exceeds 20%, the generation of tar increases in the hot plate or hot roller plate during the drawing process, especially during the drawing process. Done.

The modified ester is preferably 10-30 mol alkylene oxide added to the divalent fatty acid ester, and particularly preferably 15-25 mol added.

If less than 10 moles, the water resistance is strong, but the emulsification state of the whole composition is poor, the gel is severe, and in the refining process after weaving, the fabric quality is degraded after dyeing with incomplete deoiling. Debris adheres to the body and wears the body, reducing not only the weaving property, but also raising the viscosity of the emulsion composition results in remarkable occurrence in the weaving process.

In the present invention, the fatty acid having 4 to 10 carbon atoms is suitable for the ^divalent aliphatic R ¹ of the modified ester, and R ² is preferably an acyl or alkyl group having 12 to 20 carbon atoms. And M is a monovalent metal, that is, sodium or potassium.

The polyalkylene oxide alkyl ether phosphate specifically introduced in the present invention needs to be 5 to 10% by weight of the total composition of the present invention, and particularly preferably 6 to 8% by weight. If the added amount is less than 5%, sufficient oil film strength cannot be exhibited. If it is 10% or more, the film strength is excellent, but the friction factor increases, so that woolen yarns are severely cut and cut off and water resistance is low. Cause problems such as

The number of moles of alkyl oxide added to the above phosphate salt needs to be 3 to 8 moles, less than 3 moles of hydrophilicity, and more than 8 moles of water resistance. Moreover, when the ratio of (ethylene oxide addition mole / propylene oxide addition mole) is less than 0.5, hydrophilicity is inferior, and water resistance is inferior when it is 1.0 or more.

In addition, the alkyl group of the polyalkylene oxide alkyl ether phosphate in the present invention has 8 to 12 carbon atoms, and preferably 10 to 12 carbon atoms.

If carbon number is 8 or less, water resistance will fall, and if it is 12 or more, oil film strength will fall. M is preferably a monovalent metal, that is, sodium or potassium.

When the emulsion composition prepared by the method of the present invention is attached at 0.5 to 2.0% by weight relative to the unstretched yarn during the melt spinning of the synthetic fiber, the drawing operation is good and the weaving process can be omitted, and the weaving efficiency is good. Excellent touch and good quality products were obtained.

Hereinafter, the embodiment will be described in detail.

EXAMPLE

When melt spinning the nylon 6Chip, each composition of Table (1) was prepared by the oil roller method in an emulsion concentration of 10% and adhered to an adhesion amount of 0.85 to obtain 210 D / 12f of non-drawn yarn, followed by stretching at 3.06 to 70 D. I made a drawing history of / 12f.

Weaving used weaving adverbs to weave taffeta with a total number of 5,100 inclinations and r.p.m.

The results are shown in the table below (1).

※ Assessment Methods :

1) Focusability (Cm): One end of a 40cm filament was fixed, and a load of 1g / d was applied to the other end, and 10cm from below was cut with scissors to measure the crack width of the cut portion.

2) Wearability (times): Fix one end of filament, fix the other end by 10g of super load, and measure the number of times until cutting by repeating the reciprocating motion with an angle of 50 °, 3 twists and 150g of load.

3) Heald, body attachment: Visually determine the amount of deposit when weaving 3,000 yards.

4) Weaving efficiency: It shows the efficiency after weaving 3,000 yards.

5) Refinement: After refining for a certain time, the remaining amount of the deposit on the woven fabric was determined by visual observation and a microscope.

6) Dyeing spot: Determine the degree of dyeing after dyeing (the higher the value, the poorer)

7) Mou: Yarn per 2,000m

8) Film strength: visually confirmed by Four ball film strength meter

TABLE 1

Claims (3)

A method for producing an emulsion for amulet adjuvant, characterized in that it is produced by the following method in preparing an emulsion to be treated after melt spinning the thermoplastic synthetic fiber filament yarn before calculation. ⊙ Smoothing agent and polyethylene wax: 70-80% ⊙ Compound having the structure of formula (I) as modified ester: 10-20%

Where R ¹ : divalent fatty acid

R ² : acyl or alkyl group

M: monovalent metal ⊙ Polyalkylene oxide alkyl ether phosphate having the structure of formula (II): 5-10%

Wherein R ^{3 is a} linear or branched alkyl group

The emulsion according to claim 1, wherein the carbon number of each portion of the modified ester is R ¹ is 4 to 10, R ² is 12 to 20, and 16 to 30 is the sum of the carbon numbers of R ¹ and R ² . Manufacturing method. The method according to claim 1, wherein the carbon number of the alkyl portion of the polyalkylene oxide alkyl ether phosphate is R ³ is 8 to 12.