JPS5843512B2 - Use of biomaterials from heat-resistant antibacterial agents - Google Patents

Description

DETAILED DESCRIPTION OF THE PRESENT EMBODIMENT The present invention relates to a novel composition for treating synthetic fibers.

More specifically, the present invention relates to an oiling composition suitable for improving the smoothness and bundleability of thermoplastic synthetic multifilament yarns.

Thermoplastic synthetic fibers, such as polyamide fibers and polyester fibers, are generally oiled after melt spinning in the undrawn yarn state in order to impart smoothness, antistatic properties, flexibility, bundling properties, etc., and then drawn and twisted to produce finished yarns.

However, in recent years, there has been active streamlining of processes, and particularly from the standpoint of improving productivity, various streamlining methods have been considered, such as reducing the number of twists per unit length as the yarn reeling speed increases, moving to a non-m process by changing the process from a draw twister to a draw winder, achieving non-twisting due to the emergence of a direct yarn-proof stretching winding process, and eliminating sizing to reduce the labor required for sizing of woven warp yarns. As a result, a higher level of bundle strength than that which was previously available is now required.

Conventionally, attempts to improve focusing ability by using oils have been known as follows, but they are not complete.

For example, JP-B-43-16895 and JP-B-45-683
No., Special Publication No. 14893, Special Publication No. 44-1557
As shown in JP-B-1, there is a method of producing size-free yarn in which an emulsion mainly made of resin and sizing agent is applied during the spinning process to form a bundle. Also, as described in JP-B-463319 and JP-B-45-8199, there is a method of imparting bundle properties using only spinning oil mainly made of wax or glyceride.

However, all of the above methods are carried out with the aim of eliminating the sizing step in the weaving preparation process for textile fabrics, but they require heating at 200 to 300 T/m before warping, and are not very practical for use as size-free yarn when the yarn is not twisted much, for example, at too T/m or less.

Furthermore, the adhesive, resin, etc. may fall off during stretching, impairing stretchability, or may cause various defects such as an increase in the unwinding tension of the bobbin, uneven dyeing, and poor texture.

The present inventors have conducted extensive research into a composition for treating thermoplastic synthetic multifilament yarn that can improve bundleability without requiring significant heating or impairing smoothness, and as a result have completed the present invention.

In other words, the present invention is a composition for treating thermoplastic synthetic multifilament yarn, which comprises as its main components a mixture of an alkyl phosphate ester-based phosphorus-containing surfactant of polyethylene glycol or polypropylene glycol ether and a mineral oil and/or a higher fatty acid ester oil, to which is blended polyethylene oxide having a molecular weight of 1.5 million to 6 million, and, if necessary, an antistatic agent.

The alkyl phosphate ester phosphorus-containing surfactants of polyethylene glycol or polypropylene glycol ether referred to in the present invention refer to those having the following structures, but are of course not limited thereto.

In the formula, n is 1 to 100, R1 is a C8 to C3o alkyl group or an alkylphenyl group, and R2 is a C1 to C22 alkyl group, an allyl group, or an allylalkyl group.

The above phosphorus-containing surfactants may be used alone or in combination.

In the present invention, it is preferable that H, L and B of the phosphorus-containing surfactant are in the range of 4-15.

If H, L, or B is less than 4 or more than 15, the emulsifiability is poor and it is not practical.

The mineral oil or higher fatty acid ester oil includes liquid paraffin, white spindle oil, methyl lysylates, methyl oleates, methyl stearate, isopropyl myristate, isopropyl palmitate, butyl oleates, butyl laurates, butyl stearates, epoxy butyl stearates, isoamyl stearates, octyl palmitates, octyl laurates, octyl oleates, octyl stearates, lauryl laurates,
These include tetradecyl laurate, cetyl laurate, oleyl laurate, stearyl laurate, lauryl stearate, tetradecyl stearate, cetyl stearate, oleyl stearate, stearyl stearate, lauryl palmitate, tetradecyl palmitate, cetyl palmitate, oleyl palmitate, stearyl palmitate, lauryl oleate, tetradecyl oleate, cetyl oleate, oleyl oleate, stearyl oleate, lauryl stearate, tetradecyl stearate, cetyl stearate, oleyl stearate, stearyl stearate, and the like, and these may be used alone or in combination.

In the present invention, the mineral oil or higher fatty acid ester oil is preferably one having a viscosity (Redwood) of 60 to 100 seconds at 30° C., and is used in an appropriate amount so as not to impair smoothness.

The polyethylene oxide referred to in the present invention is HO-(C
It is a high molecular weight compound represented by the formula: H2CH20)n-CH2CH20H.

The molecular weight is from 1.5 to 6,000,000, preferably from 2.5 to 4,000,000.

The antistatic agent in the present invention refers to an anionic surfactant such as sulfated oil, alkyl sulfate ester salt, alkyl phosphate ester salt, etc., and an amphoteric surfactant such as alkylbetaine, alkylimidacilline, etc., which does not impair the emulsifying properties.

In carrying out the present invention, the following is used: 30 to 80% of a phosphorus-containing surfactant based on an alkyl phosphate ester of polyethylene glycol or polypropylene glycol ether; 0.1 to 10%, preferably 0.05 to 3%, of polyethylene oxide;
The processing liquid contains

For example, if the appropriate range of the blend ratio of the lubricating agent, mineral oil having a viscosity of 80 seconds at 30°C, polyethylene glycol ether alkyl phosphate ester of H, L, R6,9, and polyethylene oxide is clarified and shown in a triangular diagram in relation to the focusing ability, it is as shown in Figure 1.

The reason why the blending ratio of the phosphorus-containing surfactant is set to 30-80% is that if it is less than 30%, the emulsifiability is poor, and if it is more than 80%, the viscosity of the emulsion increases abnormally, making the adhesion uneven and thus impractical.

The blending ratio of polyethylene oxide is 0.1 to 10%.
The reason is that if the content is less than 0.1%, good bundling properties cannot be obtained, and if it is more than 10%, the viscosity of the emulsion increases significantly, resulting in uneven adhesion, and the size falls off at the yarn running parts such as guide rolls during drawing, significantly worsening workability, and the yarn quality is also affected, inducing the generation of fluff due to single yarn breakage, making it impractical.

Basically, taking into consideration the bundling property and workability, the amount of size applied to the yarn is preferably in the range of about 0.01 to 0.15%, and more preferably 0.045 to 0.10%.

The results are shown in Table 1.

The cut fuzz length shown in FIG. 2 is a measure of the cohesiveness. A sample 10, 5 m long was set in an apparatus as shown in FIG. 3, a load 3 of 50 S' was applied to the lower end of the sample, and 5 seconds after the initial load, the sample was cut with scissors 2 at a position 5 cIIL from the lower end. As shown in FIG. 4, the length l of the loosening degree of the single yarn of the longer sample was measured to judge the cohesiveness.

Therefore, the larger the cut fluff length value, the better the bundleability.

As a trial, using this measurement method, measurements were made on polyamide fiber sizing yarn, which is considered to have extremely high cohesiveness, and on yarn made using the conventional method, which is considered to have poor cohesiveness.
The cut fluff length was 141m and 130 taiwan.

The reliability of the measurement method was extremely high.

Other test methods are listed below.

(1) Fluff occurrence rate: indicates the number of fluffs generated per 1 million meters of yarn length. (2) Precipitates: indicates the state of precipitation on the yarn running parts such as guide rolls during drawing.

A: No precipitates B: Slight precipitates C: Quite a lot of precipitates D: Yarn cannot run (3) Unwinding property: The drawn yarn is unwound from the bobbin at a yarn speed of 200 m/mm.
The tension when unwinding is 10 f/d as the standard, A, B,
Evaluate it according to C.

(4) Coefficient of friction: Measured as the dynamic coefficient of friction between the yarn and titanium oxide using a Moro method friction coefficient measuring device.

In the oiling composition of the present invention, it is of course possible to mix other oil components in addition to the above-mentioned components.

The oiling composition of the present invention as described above is suitable for oiling, in the form of a straight oil or an aqueous dispersion, multifilament thermoplastic synthetic fiber yarns, particularly polyamide fibers, polyester fibers and other copolymer fibers thereof, which are to be made to have bundling properties.

The present invention will be described in detail below with reference to examples, but the present invention is not limited thereto in any way.

Example 1 An oiling composition having the following composition was made into a 15% emulsion, and the emulsion was used to spin nylon 66 undrawn yarn (210/
17) was oiled with an oiling roller so that the amount of oil attached became 1.5%, and this was stretched to 3 times its original size in the usual manner.

The cut fluff length and other test results of the resulting 70/17 drawn yarn are as shown in Table 1, and the bundleability was extremely high.

Example: The oiling composition having the following composition was made into a 15% emulsion, and the resulting undrawn nylon 6 yarn (210/1
7) was oiled in the same manner as in Example 1 so that the amount of oil applied was 1.5%, and then it was stretched to 3 times its original size by the usual method.

The cut fluff length and other test results of the resulting 70/17 drawn yarn are shown in Table 2, and the bundleability was extremely high.

Example 3: A polyethylene terephthalate undrawn yarn (15%) was spun from a 15% emulsion of the oiling composition having the following composition.
75/24) in the same manner as in Example 1, with the adhesion amount being 1.
Oiling is applied so that the content becomes 5%, and then, by the usual method,
The film was hot stretched to 3.5 times its original size.

The cut fluff length and other test results of the resulting 50/24 drawn yarn are shown in Table 3, and the bundleability was extremely high.

[Brief description of the drawings]

Fig. 1 is a triangular chart showing the optimum range of the treatment composition according to the present invention, Fig. 2 is a graph showing the relationship between the amount of glue applied and the cut fluff length, Fig. 3 is a schematic diagram of an apparatus for measuring the cut fluff length, and Fig. 4 is a diagram showing the loose state of a single yarn when the yarn is cut. 1: Sample, 2: Scissors, 3:
...weight, l...cut fluff length.

Claims (1)

[Claims] 1. A composition for treating thermoplastic synthetic fibers, the main components of which are a mixture of an alkyl phosphate ester-based phosphorus-containing surfactant of polyethylene glycol or polypropylene glycol ether, a mineral oil and/or a higher fatty acid ester oil, to which is added polyethylene oxide having a molecular weight of 1.5 million to 6 million.