JPS60119270A - Warp yarn treating oil agent for water jet loom - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an oil agent used for treating warps made of synthetic multifilament fibers for weaving in a water jet loom (WJL).

Generally, when manufacturing synthetic fiber yarn, an oil agent containing various surfactants and a smoothing agent such as mineral oil or esters is applied in order to give smoothness to the yarn.
As a warp treatment oil.

It is necessary to use an oil agent that does not cause troubles such as yarn breakage or fuzz generation during the raw yarn manufacturing process, and does not cause problems such as yarn disorder due to metal, single yarn breakage, and yarn disorder due to water in the weaving process. be.

Conventionally, the warp treatment oil for WJL was generally used.

An oil containing wax was used to impart water resistance to the yarn. but.

If an oil agent mixed with socks is applied to many pairs of socks, there are problems such as scum adhering to the drawing rollers in the yarn manufacturing process and the reeds and heddles in the weaving process, and the reeds being abraded and reducing weaving performance. Ta.

In recent years, the speed of weaving by WJL has been significantly increased, and there has been a strong demand for an oil agent that does not cause the above-mentioned troubles in the weaving process.

The present invention provides a warp treatment oil agent for WJL that solves the above-mentioned problems, and in which an oil agent composition containing a smoothing agent and a wax is added to a formula 2 R-COOH (R is a carbon number of 15 or more). A carboxylic acid represented by a hydrocarbon group having double bonds) and sodium oleyl sarcosinate were blended at a weight ratio of 1:1 to 5:1, so that the content was 10 to 30% by weight. It is characterized by this.

The smoothing agent used in the present invention may be any known one, and representative examples include mineral oil and esters such as isooctyl palmitate and isotridecyl palmitate. Further, the wax may be either natural wax or synthetic wax, but the wax is particularly preferred.

Oxidized polyethylene wax with an acid value of 10 or more.

It has a molecular weight of 2,000 or more and has a carboxyl group (a part or all of which may be an alkali metal salt) or a carbonyl group as a terminal or side line.

Further, examples of the carboxylic acid in the present invention include seamarinic acid, oleic acid, linoleic acid, gadolenic acid, and the like. If the number of carbon atoms in R is 14 or less, or if R does not have a double bond, there is no effect in preventing wear of the metal (reed).

Although the carboxylic acid compound in the present invention alone has the effect of reducing metal wear, it is not satisfactory, and when used in combination with sodium oleyl sarcosinate, metal wear can be sufficiently prevented. It is. It is necessary to set the ratio of carboxylic acid and sodium oleyl sarcosinate to a weight ratio of 1 to 5:(by weight), and to blend the oil composition so that their content is 10 to 30% by weight. Yes.If this condition is not satisfied,
A sufficient effect of preventing metal wear may not be achieved, or the coefficient of dynamic friction of the yarn may become large, causing other problems.

The oil agent of the present invention can be applied to synthetic fiber yarns such as nylon and polyester yarns, but the effect is particularly remarkable when applied to nylon yarns.

The yarn to which the oil agent of the present invention has been applied can be used for weaving as it is without sizing. The yarn may be twisted or untwisted, but in the case of twisted yarn, the number of twists is preferably around 20 T/m, and in the case of untwisted yarn, the CF value is 100 or less.

It is desirable to provide preferably 20 to 50 interlaces.

According to the oil agent of the present invention, there is no occurrence of fluff during the yarn manufacturing process (drawing process) or scum adhesion to i-cola, and
In the JL weaving process, scum does not adhere to the reeds and heddles, and wear of the reeds is prevented, improving weaving performance and making it possible to efficiently produce high-quality fabrics.

The present invention will now be specifically explained with reference to Examples.

Example I: Melt-spun Inn 6, 1.20OrIl/f
When winding an undrawn yarn of 210 d / 12 f at a speed of 1 inch, the concentration 1 of the emulsified oil composition shown in Table 1 was
0% by weight aqueous emulsion with an oil content of 0.5%
% by weight.

Next, this undrawn yarn was drawn with a drawing/twisting machine at a draw ratio of 3.0 times to obtain a drawn warp yarn of 70 d/L2f with an interlacing twist number of 12 T/m and a CF value of 40.

The obtained drawn yarn was evaluated in terms of degree of oil dropout, degree of metal abrasion, and occurrence of single yarn disorder using the first method.The results are shown in Table 1, totaling 1i! Shown in IIwA.

<11 Oil shedding rate A thread passed through water was run for 50,000 meters at a speed of 120/min with a reed and a cloth loaded with a 4 kg load placed 4-1 on the reed and cloth. The amount of oil was observed with the naked eye and evaluated on a secondary ranking.

l　- Traces are observed.

2... Somewhat acceptable.

3- Acceptable.

4.--Conspicuously observed, a small amount scattered on the cloth.

5.--A large amount was observed and scattered on the cloth.

(2) Metal abrasion level Apply an initial tension of 35 g to the yarn and immerse it in water for 0.4 seconds at a speed of 30 m/m + n, then run it at an angle of 30° so as to contact the metal traveler and the stainless steel reed. After running for 6 hours, wear marks on the surfaces of the roller and reed were observed under a microscope and evaluated on a first-order basis.

1--No wear is observed.

2- Slight wear is observed.

3. Wear marks are partially observed.

4-Although wear marks are clearly observed, there are few deep ones.

5-=-Extremely large and deep wear marks.

(3) Run the single yarn disordered yarn at a speed of 250 m/min while forcibly contacting a stainless steel roller and a cork roller, and observe the board to see if there is any yarn disorder (including single yarn breakage). Noko.

Table 1 (Moderate / 1119%) (Note) (D Polyethylene wax (melting point 8 () ~ 85
℃.

Molecular weight 2,500. Potassium salt type) emulsion used (wa Solid paraffin wax (melting point 85°C) emulsion used ■ Sodium oleyl sarcosinate emulsion used Patent applicant Unitika Co., Ltd. VC company

Claims (1)

[Claims] An oil composition containing a fll smoothing agent and a wax. Formula R-COOII (R is at least 1 having 15 or more carbon atoms
1 [hydrocarbon group having a double bond of 1i1)] and oleyl sarcosinate triuno.
at a weight ratio of it~5:°1. A warp treatment oil agent for a water jet loom, characterized in that it is blended to have a content of 10 to 30% by weight.