JPH0268370A - Aqueous emulsion-type spinning lubricant and usage therefor - Google Patents

Abstract

PURPOSE:To obtain the title lubricant to be oiled in the high-speed spinning process for synthetic fiber with its scattering prevented, thus capable of effective application under favorable workplace environment by incorporating a base oil with high-molecular weight polyethylene oxide. CONSTITUTION:The objective lubricant can be obtained by incorporating (A) an aqueous emulsion of a base oil containing a smoothing agent such as mineral oil and emulsifying agent with (B) a high-molecular weight polyethylene oxide 100000-6000000 in molecular weight. This lubricant is oiled at such an amount as to be 0.2-1.5wt.% (on a genuine basis) based on a synthetic fiber during the high-speed spinning process for the synthetic fiber with little scattering, thus enabling effective oiling to be made with the workplace environment improved favorably.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an aqueous emulsion type spinning oil. More specifically, in the synthetic fiber spinning process, when lubricating fibers running at high speed, water-based emulsion type spinning is suitable for applying oil safely and efficiently in a good working environment with little scattering of lubricant. Regarding oil agents.

[Prior Art] In recent years, yarn running speed has been significantly increased in textile manufacturing processes for the purpose of high productivity and rationalization. In particular, in the spinning process of synthetic fibers such as polyester and nylon, the conventional
The winding speed was 15 θOm/min, but the speed has been increased to 3500 to 7000 m/min, although there are differences in the process.

By the way, in order to smoothly proceed with the operation in such a spinning process and improve the quality of the yarn, spinning oil is supplied by a method such as a roller touch method or a nozzle oiling method. This spinning oil agent imparts properties such as smoothness and antistatic properties to the fiber yarn, but as the spinning process becomes faster as mentioned above, oil scattering from oil supply rollers and nozzle guides immediately after spinning increases. ,
Oil scattering, which had not been a problem in the past, such as oil scattering on the interlacer that focuses the yarn and oil scattering on the traverse guide just before winding, has increased significantly, not only worsening the working environment but also causing problems in terms of worker safety and economy. It has also become a big problem from a gender perspective.

For this reason, each fiber manufacturer has been able to obtain the desired performance when lubricating fiber threads during high-speed running, and with less oil scattering.
There is a strong need for the development of oil agents with less oil loss.

Conventionally, in order to prevent oil scattering in spinning oils, attempts have been made to add silicone and fluorine-based activators to aqueous emulsion-type oils to lower the surface tension and improve affinity for fibers, thereby preventing oil scattering. There is.

[Problems to be Solved by the Invention] However, the above-mentioned oil agent is insufficient in preventing oil from scattering from the fiber threads during high-speed running.

[Means for Solving the Problems] In view of the above-mentioned circumstances, the present inventors have conducted intensive studies to obtain a spinning oil agent that exhibits oil scattering properties against fiber yarns during high-speed running, and have developed the present invention. Achieved invention.

That is, the present invention is an aqueous emulsion type spinning oil characterized by adding high molecular weight polyethylene oxide.

Examples of the high molecular weight polyethylene oxide used in the present invention include polymers whose main chain is mainly composed of repeating -CH2-CH2-0- structural units and whose molecular weight is usually 100,000 or more and 6 million or less. . If the molecular weight of the high molecular weight polyethylene oxide is less than 100,000, the ability to prevent oil from scattering from the fiber threads during high-speed running is insufficient, and if it exceeds 6 million, the emulsion viscosity will increase.
Uniform adhesion of the oil agent becomes poor and fuzz increases.

The molecular weight is a nail piece average molecular weight and can be measured by GPC (gel permedicon chromatography).

This is done by treating ethylene oxide with a suitable catalyst (e.g. SrCO3, CaC03, ZnCO3 or A1,
Z n1F eN M g alkoxide) can be obtained by ring-opening polymerization. In addition, during ring-opening polymerization, a small amount of evoquine group-containing compounds such as propylene oxide, isobutylene oxide, styrene oxide, butadiene oxide, allyl glycidyl ether, glycidyl acrylate, vinylhexane monooxide, 2methyl-5,6-nipoxy A copolymer obtained by coexisting hexene-1 or the like can also be used as long as it is water-soluble or water-emulsifiable.

The high molecular weight polyethylene oxide of the present invention includes mineral oil,
Aqueous emulsion of base oil containing natural oil or synthetic ester oil as a smoothing agent component, and further containing various surfactants as emulsifiers and antistatic agents, and optionally additives such as antioxidants and rust preventives. It is used by adding it to.

As a smoothing agent, mineral oil (refined spindle oil, liquid paraffin), natural oil (coconut oil, castor oil, etc.), or synthetic ester oil [isostearyl laurate, butyl stearate, 2-ethylhexyl palmitate, lauryl Alcohol ethylene oxide (hereinafter, ethylene oxide is abbreviated as EO), 2-mole adduct laurate, bisphenol propylene oxide (hereinafter, propylene oxide is abbreviated as PO), ester of saturated fatty acid with 2-mole E02-mole adduct dilauret), and polyether [ Eol PO adducts of monohydric alcohols having 1 to 6 carbon atoms; e.g. EO/PO random adducts of butanol (molecule i:
1,400), copolymers of polyhydric alcohols EO and PO (molecular weight: 2,000), etc. Components of emulsifiers and antistatic agents include nonionic surfactants (polyoxyalkylene alkyl ether, polyoxyalkylene alkyl ether, polyoxyalkylene alkyl ether, polyoxyalkylene alkyl ether, etc.). Examples include aryl ethers, polyoxyalkylene fatty acid esters, etc.), anionic surfactants (alkyl sulfates, fatty acid soaps, alkyl phosphate esters (salts), alkyl sulfonates (salts), etc.).

In the aqueous emulsion type spinning oil of the present invention, additives such as antioxidants, preservatives, metal wear inhibitors, and silicone and fluorine-based activators may be added to improve wetting properties, if necessary. , the addition of high molecular weight polyethylene oxide is usually 0 based on the weight of the pace oil.
．． 01-10%, preferably 0.1-5%. The amount of this high molecular weight polyethylene oxide added is 0.01%.
If it is less than 10%, the oil scattering properties from the fiber threads will not be sufficiently prevented during high-speed cutting, and if it exceeds 10%, the emulsion viscosity will increase, and the uniformity of the oil will be poor (and fluff will increase). .

There are no restrictions on the blending amount of other components as long as they do not impede the effects of the present invention, and are arbitrary depending on the purpose of the oil agent.

The spinning oil of the present invention can be applied to synthetic fibers such as polyamide fibers and polyester fibers. As for the fiber form, filament yarn is usually applied.

The amount of the spinning oil applied in the present invention varies depending on the type, shape, thickness, etc. of the fiber, but is usually 0.2 to 1.5% based on the weight of the fiber.
% (pure content), preferably 0.4 to 1%.

The spinning oil of the present invention can be used as a lubricant in the fiber manufacturing process.
Usually used in the spinning process. There is no particular limitation on the lubricating method, and any method such as a roller lubricating method, a nozzle lubricating method, a spray lubricating method, etc. may be used.

[Example] The present invention will be further explained below with reference to Examples and Comparative Examples.
The present invention is not limited to this. Details of the oil components used in Examples and Comparative Examples are as follows.

Polymer 1: PE0-18 (Polyethylene oxide average molecular weight 43θ - 4.8 million, manufactured by Steel Chemical Industry Co., Ltd.) Polymer 2: PE0-8 (Polyethylene oxide average molecular weight 1.7 million - 2.2 million, manufactured by Steel Chemical Industry Co., Ltd.) Polymer 3: PE0-3 (polyethylene oxide average molecular weight GO-1,100,000 manufactured by Seitetsu Kagaku Kogyo Co., Ltd.) Smoothing agent 1: Liquid paraffin (100 seconds) Smoothing agent 2: 2-
Ethyl hequinyl stearate smoothing agent 3: Bisphenol APO (2) EO (2) dilaurate (indicates dilauryl ester of bisphenol APO 2 mol E0 2 mol adduct. The same description will be used hereinafter) Activator 1: Oleyl alcohol Eo ( 3) Adduct activator 2: Hydrogenated castor oil EO (20) Adduct activator 3: Nioleic acid diethanolamide Activator 4: Alkyl sulfonate Na salt Activator 5: Alkyl phosphate Na salt Activator 6: Dioctylsulfosuccinate Na salt Additive 1:
Polyether modified product of dimethylpolysiloxane [5H
3771: Manufactured by Toray Silicone Co., Ltd.] Examples 1 to 6 Comparative Examples 1 to 3 An oil agent of the present invention and a comparative oil agent were obtained with the compositions shown in Table 1.

Table 1 (continued) Spinning at take-up speed 7000 m/+nin 75 de/
A filament of 36 f i 1 was obtained.

The amount of oil adhesion (%) (Test 1), fiber-metal friction coefficient (Test 2), and fuzz (Test 3) were measured for the obtained filament, and the scattering of the oil was measured immediately after oiling, on a part of the interlacer, and on the traverse. The scattering state of the oil agent on the guide portion (Test 4) was observed with the naked eye. The results are shown in Table 2.

Table 2 Test Example 1 10% emulsions of the oil agent of the present invention and the comparative oil agent shown in Table 1 were prepared. The method for adding the polymer was as follows: A predetermined amount of a 1% aqueous solution of the polymer was added to an aqueous emulsion of hairs oil from which the polymer had been removed, to obtain a 10% emulsion of each. The above 10% emulsion was applied to the undrawn polyethylene terephthalate yarn through a nozzle, and Table 2 (continued) (1) Amount of oil attached (%) (Test 1) Approximately 2 g of the filament yarn after winding was sampled, Ether 2 using a rapid residual fat extraction device manufactured by
The adhering oil agent was extracted at 0 ml.

(2) Fiber-metal friction coefficient (Test 2) Eiko measuring instrument (
After winding, the filament yarn was tested using a running Soho friction testing device manufactured by Co., Ltd., at an initial tension (TI) of 20 g and a running speed of 30.
The yarn tension after friction (T
2) was measured. The friction coefficient was calculated from the following formula.

Fiber-metal friction coefficient = [In (Tl/T2) co/
θθ: Friction angle (3) Fuzz (Test 3) The presence or absence of fuzz on the end face of the cheese after winding was visually observed.

(4) Scattering state of oil (Test 4) When refueling, the scattering state of the oil was observed with the naked eye.

○: Hardly any oil scattering ×: Quite a lot of oil scattering From the results in Table 2, it can be seen that the oil agents of the present invention all have a small amount of oil scattering, and their fiber-to-metal friction coefficients are equivalent to the comparative oil agents. It can be seen that it has good performance.

[Effects of the Invention] The spinning oil of the present invention suppresses scattering from the fiber yarn, especially during high-speed running, and does not cause problems such as loss of the oil or deterioration of the working environment.

Because it exhibits the above effects, the oil of the present invention is particularly suitable for amendment 1 of the proceedings, indication of the case, Patent Application No. 214477 of 1988, 2, name of the invention, aqueous emulsion type spinning oil 3, and the person making the amendment. (1) The title of the invention on page 1 of the specification is corrected to "Aqueous emulsion type spinning oil and method of use."

(2) The scope of the claims on page 1 of the same book is changed to ``1. An aqueous emulsion-type spinning oil characterized by adding high molecular weight polyethylene oxide.

2. The aqueous emulsion type spinning oil according to claim 1, wherein the molecular weight of the high molecular weight polyethylene oxide is from 100,000 to 6,000,000.

spontaneous 5. Number of claims increased by amendment Each column of "Detailed explanation".

I am corrected.

(3) In the same book, page 3, lines 17 to 19, ``In other words, the present invention is an aqueous emulsion-type spinning oil characterized by adding a high molecular weight polyethylene oxide.'' to ``In other words, the present invention is an aqueous emulsion type spinning oil characterized by adding high molecular weight polyethylene oxide, and an aqueous emulsion type spinning oil characterized by adding high molecular weight polyethylene oxide to synthetic fibers in an amount of 0.2 to 0.2 to 0.2 to This is a method of using an aqueous emulsion type spinning oil characterized by supplying 1.5% (purity) oil.''

Claims (1)

[Scope of Claims] 1. An aqueous emulsion type spinning oil characterized by adding high molecular weight polyethylene oxide. 2. The aqueous emulsion type spinning oil according to claim 1, wherein the molecular weight of the high molecular weight polyethylene oxide is from 100,000 to 6,000,000.