阅读说明：本技术 一种新型氨纶油剂及经过其处理得到的氨纶 (Novel spandex oil agent and spandex obtained through treatment of novel spandex oil agent ) 是由 杜建民 杜宗霖 于 2020-07-28 设计创作，主要内容包括：一种新型氨纶油剂,所述氨纶油剂可用于氨纶干纺纺丝,所述氨纶油剂在25℃的粘度为10-30mPa·s,密度为0.85-0.95g/cm<Sup>3</Sup>,所述氨纶油剂在使用时的上油率为1-5％,所述氨纶油剂至少包含C12-C20饱和脂肪酸盐、脂肪酸酯。(A novel spandex oil agent which can be used for dry spinning of spandex and has a viscosity of 10-30mPa s at 25 ℃ and a density of 0.85-0.95g/cm 3 The oiling rate of the spandex oil agent in use is 1-5%, and the spandex oil agent at least comprises C12-C20 saturated fatty acid salt and fatty acid ester.)

1. A novel spandex oil agent is characterized in that the spandex oil agent can be used for dry spinning of spandex, the viscosity of the spandex oil agent at 25 ℃ is 10-30 mPa.s, and the density of the spandex oil agent isIs 0.85-0.95g/cm³The oiling rate of the spandex oil agent in use is 1-5%, and the spandex oil agent at least comprises C12-C20 saturated fatty acid salt and fatty acid ester.

2. The novel spandex oil of claim 1, wherein the novel oil is silicone oil-free.

3. A novel spandex oil according to claim 1, wherein the spandex oil has a fineness of 10 to 1120D.

4. The novel spandex oil of claim 1, wherein the dry spinning of spandex comprises one of a batch polymerization process, a semi-continuous polymerization process, and a continuous polymerization process.

5. A novel spandex oil as claimed in claim 1, wherein the fatty acid ester contains at least one methylene group.

6. The novel spandex oil of claim 1, further comprising paraffins and/or naphthenes.

7. The novel spandex oil of claim 6, wherein the paraffin is derived from mineral oil.

8. The novel spandex oil of claim 6, wherein the cycloalkane is derived from mineral oil.

9. The novel spandex oil of claim 6, wherein the mineral oil has a kinematic viscosity of 5 to 30mm at 40 ℃ as measured by GBT 265²/s。

10. A spandex obtained by treating with the novel spandex oil according to any one of claims 1 to 9.

Technical Field

The invention relates to a textile technology, in particular to a novel spandex oil agent and spandex obtained by processing the same.

Background

Spandex, a well known name for polyurethane fiber. The polyurethane has high elasticity, can be elongated by 6-7 times, can be quickly recovered to an initial state along with the disappearance of tension, has a chain-like, soft and extensible molecular structure, and is enhanced in characteristics by being connected with a hard chain segment. Elastic fibers are classified into two categories: one is a polyester chain; one is a polyether chain. The polyester elastic fiber has strong oxidation resistance and oil resistance; the polyether elastic fiber has good mildew resistance and detergent resistance.

The oil agent adopted in the prior polyurethane fiber dry spinning process generally contains silicone oil. However, silicone oil also causes problems, for example, an oil agent containing silicone oil is difficult to remove, and affects subsequent dyeing and pasting.

Disclosure of Invention

In order to solve the problems of the prior art, the invention provides a novel spandex oil agent without silicone oil.

The first aspect of the present invention provides a novel spandex finish which can be used for dry spinning of spandex, the spandex finish having a viscosity of 10 to 30 mPa-s at 25 ℃ and a density of 0.85 to 0.95g/cm³The oiling rate of the spandex oil agent in use is 1-5%, and the spandex oil agent at least comprises C12-C20 saturated fatty acid salt and fatty acid ester.

In some embodiments, the novel oil is free of silicone oil.

Generally, silicone oil is added into spandex oil agent to improve unwinding property and keep better isolation performance. The current technical difficulty is to maintain better performance in silicone-free spandex oil agent without silicone oil. The inventors have conducted extensive studies and found that a specific fatty acid ester can be used to obtain a silicone-free spandex finish excellent in performance, and that various properties such as barrier properties and unwinding properties of the spandex finish can be maintained at a satisfactory level in various commercially available spandex finishes. In some embodiments, the spandex finish provided herein includes paraffins or naphthenes, or both paraffins and naphthenes, in addition to the particular fatty acid ester.

In some embodiments, the spandex oil can have a denier of 10 to 1120D.

The denier of a fiber is the weight in grams of 9000 meters of a yarn or fiber at a official moisture regain, which is also a fixed-length unit, with the larger the grammage the thicker the yarn or fiber.

In some embodiments, the fineness of spandex to which the spandex finish can be applied may be exemplified by, for example: 10. 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 200, 250, 300, 350, 500, 1000, 1120D.

In some embodiments, the spandex dry spinning comprises one of a batch polymerization production process, a semi-continuous polymerization production process, and a continuous polymerization production process.

The production methods of spandex are generally classified into dry spinning, wet spinning, chemical reaction spinning, and melt spinning. The process and conditions, including the agents used, of each production method are different. The dry spinning process of the present invention generally employs a polyether diol and a diisocyanate in a ratio of 1: 2 under certain reaction temperature and time, dissolving the prepolymer in solvent, adding diamine for chain extension reaction to form block copolymer solution, adding assistant, mixing, filtering, defoaming and other steps to produce the spinning field with homogeneous performance. Then quantitatively and uniformly pressing the spinning solution into a spinning nozzle by using a metering pump, extruding the spinning solution from pores of the spinning nozzle to form a filament trickle, and feeding the filament trickle into a spinning shaft. The channel is filled with hot air or hot nitrogen, so that the solvent in the strand trickle is quickly volatilized and taken away by the air or the nitrogen, and the concentration of the strand is continuously increased until the strand is solidified. Meanwhile, spandex is generally multifilament, and is clasped by a twister before solidification, and finally, the spandex is oiled and rolled into a certain package. Generally, with the dry spinning process described herein, the spinning speed is typically 200-600m/min, and in some embodiments may be up to 1200 m/min.

As specific examples of fatty acid esters which may be employed in the present invention, there are included, but not limited to: methyl valerate, ethyl valerate, propyl valerate, butyl valerate, pentyl valerate, hexyl valerate, heptyl valerate, octyl valerate, nonyl valerate, decyl valerate, undecyl valerate, dodecyl valerate, tridecyl valerate, tetradecyl valerate, pentadecyl valerate, hexadecyl valerate, heptadecyl valerate, octadecyl valerate, nonadecyl valerate, eicosyl valerate, methyl hexanoate, ethyl hexanoate, propyl hexanoate, butyl hexanoate, pentyl hexanoate, hexyl hexanoate, heptyl hexanoate, octyl hexanoate, nonyl hexanoate, decyl hexanoate, undecyl hexanoate, dodecyl hexanoate, tridecyl hexanoate, tetradecyl hexanoate, pentadecyl hexanoate, hexadecyl hexanoate, heptadecyl hexanoate, octadecyl hexanoate, nonadecyl hexanoate, eicosyl hexanoate, methyl heptanoate, ethyl heptanoate, propyl heptanoate, butyl heptanoate, Pentyl heptanoate, hexyl heptanoate, heptyl heptanoate, octyl heptanoate, nonyl heptanoate, decyl heptanoate, undecyl heptanoate, dodecyl heptanoate, tridecyl heptanoate, tetradecyl heptanoate, pentadecyl heptanoate, hexadecyl heptanoate, heptadecyl heptanoate, octadecyl heptanoate, nonadecyl heptanoate, eicosyl heptanoate, methyl octanoate, ethyl octanoate, propyl octanoate, butyl octanoate, pentyl octanoate, hexyl octanoate, heptyl octanoate, octyl octanoate, nonyl octanoate, decyl octanoate, undecyl octanoate, dodecyl octanoate, tridecyl octanoate, tetradecyl octanoate, pentadecyl octanoate, hexadecyl octanoate, heptadecyl octanoate, octadecyl octanoate, nonadecyl octanoate, eicosyl octanoate, methyl nonanoate, ethyl nonanoate, propyl nonanoate, butyl nonanoate, pentyl nonanoate, hexyl nonanoate, heptyl nonanoate, octyl nonanoate, decyl nonanoate, Nonyl pelargonate, decyl pelargonate, undecyl pelargonate, dodecyl pelargonate, tridecyl pelargonate, tetradecyl pelargonate, pentadecyl pelargonate, hexadecyl pelargonate, heptadecyl pelargonate, octadecyl pelargonate, nonadecyl pelargonate, eicosyl pelargonate, methyl decanoate, ethyl decanoate, propyl decanoate, butyl decanoate, pentyl decanoate, hexyl decanoate, heptyl decanoate, octyl decanoate, nonyl decanoate, decyl decanoate, undecyl decanoate, dodecyl decanoate, tridecyl decanoate, tetradecyl decanoate, pentadecyl decanoate, hexadecyl decanoate, heptadecyl decanoate, octadecyl decanoate, nonadecyl decanoate, eicosyl undecanoate, methyl undecanoate, ethyl undecanoate, propyl undecanoate, butyl undecanoate, pentyl undecanoate, hexyl undecanoate, heptyl undecanoate, octyl undecanoate, nonyl undecanoate, decyl undecanoate, Undecyl undecanoate, dodecyl undecanoate, tridecyl undecanoate, tetradecyl undecanoate, pentadecyl undecanoate, hexadecyl undecanoate, heptadecyl undecanoate, octadecyl undecanoate, nonadecyl undecanoate, eicosyl undecanoate, methyl laurate, ethyl laurate, propyl laurate, butyl laurate, pentyl laurate, hexyl laurate, heptyl laurate, octyl laurate, nonyl laurate, decyl laurate, undecyl laurate, dodecyl laurate, tridecyl laurate, tetradecyl laurate, pentadecyl laurate, hexadecyl laurate, heptadecyl laurate, octadecyl laurate, nonadecyl laurate, eicosyl laurate, methyl tridecanoate, ethyl tridecanoate, propyl tridecanoate, pentyl tridecanoate, hexyl tridecanoate, heptyl tridecanoate, hexyl tridecanoate, Octyl tridecanoate, nonyl tridecanoate, decyl tridecanoate, undecyl tridecanoate, dodecyl tridecanoate, tetradecanoate, pentadecanoate, hexadecyl tridecanoate, heptadecyl tridecanoate, octadecyl tridecanoate, nonadecyl tridecanoate, eicosanoyl tridecanoate, methyl myristate, ethyl myristate, propyl myristate, butyl myristate, pentyl myristate, hexyl myristate, heptyl myristate, octyl myristate, nonyl myristate, decyl myristate, undecyl myristate, dodecyl myristate, tridecanoyl myristate, tetradecanoyl myristate, pentadecanoyl myristate, hexadecyl myristate, heptadecyl myristate, octadecyl myristate, nonadecyl myristate, eicosanoyl myristate, tridecanoyl myristate, tetradecanoyl myristate, pentadecyl myristate, hexadecyl myristate, heptadecyl myristate, octadecyl myristate, nonadecyl myristate, eicosanoyl myristate, Pentadecanoic acid methyl ester, pentadecanoic acid ethyl ester, pentadecanoic acid propyl ester, pentadecanoic acid butyl ester, pentadecanoic acid pentyl ester, pentadecanoic acid hexyl ester, pentadecanoic acid heptyl ester, pentadecanoic acid octyl ester, pentadecanoic acid nonyl ester, pentadecanoic acid decyl ester, pentadecanoic acid undecyl ester, pentadecanoic acid tridecyl ester, pentadecanoic acid tetradecyl ester, pentadecanoic acid pentadecanoic ester, pentadecanoic acid hexadecyl ester, pentadecanoic acid heptadecanoyl ester, pentadecanoic acid octadecyl ester, pentadecanoic acid nonadecanoyl ester, pentadecanoic acid eicosyl ester, palmitic acid methyl ester, palmitic acid ethyl ester, palmitic acid propyl ester, palmitic acid butyl ester, palmitic acid pentyl ester, palmitic acid hexyl ester, palmitic acid heptyl ester, palmitic acid octyl ester, palmitic acid nonyl ester, palmitic acid decyl ester, palmitic acid undecyl acid ester, palmitic acid decyl ester, nonacetyl palmitate, behenyl palmitate, methyl pearlescent stearate, ethyl pearlescent stearate, propyl pearlescent stearate, butyl pearlescent stearate, pentyl pearlescent stearate, hexyl pearlescent stearate, heptyl pearlescent stearate, octyl pearlescent stearate, nonyl pearlescent stearate, decyl pearlescent stearate, undecyl pearlescent stearate, dodecyl pearlescent stearate, tridecyl pearlescent stearate, tetradecyl pearlescent stearate, pentadecyl pearlescent stearate, hexadecyl pearlescent stearate, heptadecyl pearlescent stearate, octadecyl pearlescent stearate, nonadecyl pearlescent stearate, eicosyl pearlescent stearate, methyl stearate, ethyl stearate, propyl stearate, butyl stearate, pentyl stearate, hexyl stearate, heptyl stearate, octyl stearate, nonyl stearate, decyl stearate, undecyl stearate, tridecyl stearate, Tetradecyl stearate, pentadecyl stearate, hexadecyl stearate, heptadecyl stearate, octadecyl stearate, nonadecyl stearate, eicosyl stearate, methyl nonadecanoate, ethyl nonadecanoate, propyl nonadecanoate, butyl nonadecanoate, pentyl nonadecanoate, hexyl nonadecanoate, heptyl nonadecanoate, octyl nonadecanoate, nonyl nonadecanoate, decyl nonadecanoate, undecyl nonadecanoate, dodecyl nonadecanoate, tridecyl nonadecanoate, tetradecyl nonadecanoate, pentadecyl nonadecanoate, hexadecyl nonadecanoate, heptadecyl nonadecanoate, octadecyl nonadecanoate, nonadecyl nonadecanoate, eicosyl nonadecanoate, methyl arachinate, ethyl arachinate, propyl arachinate, butyl arachinate, pentyl arachinate, hexyl arachinate, heptyl arachinate, octyl arachinate, nonyl arachinate, decyl arachinate, undecyl arachinate, decyl arachinate, ethyl arachinate, propyl arachinate, butyl arachinate, pentyl arachinate, hexyl arachinate, heptyl arachinate, octyl arachinate, nonyl arachinate, decyl arachinate, decyl, dodecyl arachidate, tridecyl arachidate, tetradecyl arachidate, pentadecyl arachidate, hexadecyl arachidate, heptadecyl arachidate, octadecyl arachidate, nonadecyl arachidate, eicosyl ester, butyl eicosyl ester, pentyl eicosyl ester, hexyl eicosyl ester, heptyl heneicosyl ester, octyl eicosyl ester, nonyl eicosyl ester, decyl eicosyl ester, undecyl ester, dodecyl eicosyl ester, tridecyl eicosyl ester, tetradecyl ester heneyl ester, pentadecyl icosyl ester, hexadecyl ester heneyl ester, heptadecyl ester heneyl ester, octadecyl ester heneicosyl ester, nonadecyl ester, docyl ester, methyl docosyl ester, ethyl behenyl ester, propyl behenyl ester, butyl behenyl ester, pentyl behenyl ester, docosyl ester, heptadecyl behenyl ester, heptadecyl eicosyl ester, heptacosyl ester, Hexyl behenate, heptyl behenate, octyl behenate, nonyl behenate, decyl behenate, undecyl behenate, dodecyl behenate, tridecyl behenate, tetradecyl behenate, pentadecyl behenate, hexadecyl behenate, heptadecyl behenate, octadecyl behenate, nonadecyl behenate, eicosyl behenate, methyl tricosanate, ethyl tricosanate, propyl tricosanate, butyl tricosanate, pentyl tricosanate, hexyl tricosanate, heptyl tricosanate, octyl tricosanate, nonyl tricosanate, decyl tricosanate, undecyl tricosanate, tridecyl behenate, tetradecyl tricosanate, pentadecyl tricosanate, hexadecyl behenate, heptadecyl tricosanate, octadecyl tricosanate, nonadecyl behenate, tridecyl behenyl behenate, myristyl behenyl behenate, pentadecyl lignocerate, cetyl lignocerate, behenyl behenate, decyl behenate, undecyl behenyl behenate, undecyl, Eicosanoic acid eicosyl ester, methyl cerotic acid, ethyl cerotic acid, propyl cerotic acid, butyl cerotic acid, pentyl cerotic acid, hexyl cerotic acid, heptyl cerotic acid, octyl cerotic acid, nonyl cerotic acid, decyl cerotic acid, undecyl cerotic acid, dodecyl cerotic acid, tridecyl cerotic acid, tetradecyl cerotic acid, pentadecyl cerotic acid, hexadecyl cerotic acid, heptadecyl cerotic acid, octadecyl cerotic acid, nonadecyl cerotic acid, eicosyl cerotic acid, methyl pentacosanoate, ethyl pentacosan acid, propyl pentacosanoic acid, butyl pentacosanoic acid, pentyl pentacosanoic acid, hexyl pentacosanoic acid, heptyl pentacosanoic acid, octyl pentacosanoic acid, nonyl pentacosanoic acid, decyl pentacosanoic acid, undecyl pentacosanoic acid, dodecyl cerotic acid, tridecanyl icosanoic acid, tetradecanyl icosanoic acid, pentadecanoic acid, Hexadecanol pentacosanoate, heptadecylalcohol pentacosanoate, octadecanol pentacosanoate, nonadecylalcohol pentacosanoate, eicosanol pentacosanoate, methyl cerotic ate, ethyl cerotic acid, propyl cerotic acid, butyl cerotic acid, pentyl cerotic acid, hexyl cerotic acid, heptyl cerotic acid, octyl cerotic acid, nonyl cerotic acid, decyl cerotic acid, undecyl cerotic acid, tridecyl cerotic acid, tetradecyl cerotic acid, pentadecylic cerotic acid, hexadecanol cerotic acid, heptadecyl cerotic acid, octadecanol cerotic acid, nonadecylalcerotic acid, icosyl cerotic acid.

Silicone oils have good release properties, and mineral oils have slightly weaker release properties than silicone oils. The inventors have discovered in their studies that, in some embodiments, spandex filament coils are prone to blocking, particularly in the inner or bottom layers of the spandex filament coil, due to factors such as winding and gravity. The addition of fatty acid esters containing specific branches can further improve the anti-adhesion properties, in particular, the root adhesion. The inventors have also found in the course of the present invention that the branched fatty acid ester has a low freezing point and good compatibility and compatibility, and the more the branched fatty acid ester has, the better the effect. However, the inventors have found that when the number of branched chains is too large, the saturated fatty acid salt in the spandex oil agent is likely to precipitate, and the barrier property and smoothness of the spandex are affected.

In some embodiments, the fatty acid ester contains at least one methylene group.

As specific examples of fatty acid esters which may be employed in the present invention, there are included, but not limited to: iso-methyl valerate, iso-ethyl valerate, iso-propyl valerate, iso-butyl valerate, iso-pentyl valerate, iso-hexyl valerate, iso-heptyl valerate, iso-octyl valerate, iso-nonyl valerate, iso-decyl valerate, iso-undecyl valerate, iso-dodecyl valerate, iso-tridecyl valerate, iso-tetradecyl valerate, iso-pentadecyl valerate, iso-hexadecyl valerate, iso-heptadecyl valerate, iso-octadecyl valerate, iso-nonadecyl valerate, iso-eicosyl valerate, iso-methyl hexanoate, iso-ethyl hexanoate, iso-isopropyl hexanoate, iso-isobutyl hexanoate, iso-hexyl hexanoate, iso-heptyl hexanoate, iso-octyl hexanoate, iso-nonyl hexanoate, iso-decyl hexanoate, iso-undecyl hexanoate, iso-dodecyl hexanoate, iso-tridecyl hexanoate, iso-tetradecyl hexanoate, iso-pentadecyl hexanoate, iso-hexadecyl hexanoate, iso-heptadecyl hexanoate, iso-octadecyl hexanoate, Isononadecanol hexanoate, isoeicosanoate, isomethyl heptanoate, isooctyl heptanoate, isopropyl heptanoate, isobutyl heptanoate, isoamyl heptanoate, isohexyl heptanoate, isoheptyl heptanoate, isooctyl heptanoate, isononyl heptanoate, isodecyl heptanoate, isoundecyl heptanoate, isotridecyl heptanoate, isotetradecyl heptanoate, isopentadecyl heptanoate, isohexadecyl heptanoate, isoheptadecyl heptanoate, isooctadecyl heptanoate, isonodecyl heptanoate, isonicosanol heptanoate, isoeicosanoyl octanoate, isooctyl octanoate, isopropyl octanoate, isobutyl octanoate, isoamyl octanoate, isohexyl octanoate, isoheptyl octanoate, isooctyl octanoate, isononyl octanoate, isodecyl octanoate, isoundecyl octanoate, isotridecyl octanoate, isotetradecyl octanoate, isotentadecyl octanoate, isohexadecyl octanoate, isoheptadecyl octanoate, isooctyl octanoate, isotridecyl octanoate, isooctyl octanoate, isooctadecyl, Isooctadecanol octanoate, isonicotyl octanoate, isoeicosyl octanoate, isomethyl nonanoate, isopropyl nonanoate, isobutyl nonanoate, isoamyl nonanoate, isohexyl nonanoate, isoheptyl nonanoate, isooctyl nonanoate, isononyl nonanoate, isodecyl nonanoate, isoundecyl nonanoate, isotridecanol nonanoate, isotridecyl nonanoate, isotetradecyl nonanoate, isopentadecyl nonanoate, isohexadecyl nonanoate, isoheptyl nonanoate, isooctyl nonanoate, isononanol nonanoate, isoeicosyl nonanoate, isomethyl decanoate, isoethyl decanoate, isopropyl decanoate, isobutyl decanoate, isoamyl decanoate, isohexyl decanoate, isoheptyl decanoate, isooctyl decanoate, isononyl decanoate, isodecyl decanoate, isoundecyl decanoate, isotridecyl decanoate, isotetradecyl isotetradecanoate, isodecyl decanoate, iso, Isopentadecanol decanoate, isohexadecyl decanoate, isoheptyl decanoate, isooctadecyl decanoate, isonnonadecyl decanoate, isoeicosyl decanoate, isomethyl undecanoate, isoethyl undecanoate, isopropyl undecanoate, isobutyl undecanoate, isoamyl undecanoate, isohexyl undecanoate, isoheptyl undecanoate, isooctyl undecanoate, isononyl undecanoate, isodecyl undecanoate, isoundecyl undecanoate, isopentadecanol undecanoate, isohexadecyl undecanoate, isoheptyl undecanoate, isooctyl undecanoate, isoeicosyl undecanoate, isomethyl laurate, isoethyl laurate, isopropyl laurate, isobutyl laurate, isoamyl laurate, isohexyl laurate, isoheptyl laurate, isooctyl undecanoate, isooctyl undecanoate, isodecyl undecanoate, isododecyl laurate, isopropyl laurate, isobutyl laurate, isopentyl laurate, isoheptyl laurate, isooctyl laurate, isooctyl laurate, isononyl laurate, isodecyl laurate, isoundecyl laurate, isotridecyl laurate, isotetradecyl laurate, isopentadecyl laurate, isohexadecyl laurate, isoundecyl laurate, isoeicosyl laurate, isopropyl tridecanoate, isobutyl tridecanoate, isopentyl tridecanoate, isohexyl tridecanoate, isoheptyl tridecanoate, isooctyl tridecanoate, isononyl tridecanoate, isodecyl tridecanoate, isoundecyl tridecanoate, isotridecyl tridecanoate, isotetradecyl tridecanoate, isopentadecyl tridecanoate, isohexadecyl tridecanoate, isooctadecyl tridecanoate, Isoeicosyl myristate, isooctyl myristate, isopropyl myristate, isobutyl myristate, isoamyl myristate, isohexyl myristate, isoheptyl myristate, isooctyl myristate, isononyl myristate, isodecyl myristate, isoundecyl myristate, isotridecyl myristate, isotetradecyl myristate, isopentadecyl myristate, isoheptadecyl myristate, isohexadecyl myristate, isooctyl myristate, isonicosyl myristate, isoeicosyl pentadecate, isopropyl pentadecate, isobutyl pentadecate, isoamyl pentadecate, isohexyl pentadecate, isoheptyl pentadecate, isooctyl pentadecate, isononyl pentadecate, isodecyl pentadecate, isopropyl pentadecate, isobutyl pentadecate, isopentyl pentadecate, isohexyl pentadecate, isooctyl pentadecate, isodecyl pentadecate, Isoundecanol pentadecate, isododecanol pentadecate, isotridecanol pentadecate, isotetradecanol pentadecate, isotentadecanol pentadecate, isohexadecanol pentadecate, isooctanoyl pentadecate, isoeicosanol pentadecate, isomethyl palmitate, isopropyl palmitate, isobutyl palmitate, isoamyl palmitate, isohexyl palmitate, isoheptyl palmitate, isooctyl palmitate, isononyl palmitate, isodecyl palmitate, isoundecyl palmitate, isotridecyl palmitate, isotetradecanol palmitate, isotentadecanol palmitate, isohexadecanol palmitate, isoheptadecyl palmitate, isostearyl palmitate, isotridecyl palmitate, isotetradecanol palmitate, isostearyl palmitate, isotridecyl palmitate, isotetradecyl palmitate, isoeicosyl palmitate, isomethyl palmitate, and the like, Isoethyl pearlescentate, isopropyl pearlescentate, isobutyl pearlescentate, isoamyl pearlescentate, isohexyl pearlescente, isoheptyl pearlescente, isooctyl pearlescente, isononyl pearlescente, isodecyl pearlescente, isoundecyl pearlescente, isodecyl pearlescente, isotridecyl pearlescente, isotetradecyl pearlescente, isopentadecyl pearlescente, isoheptadecyl pearlescente, isohexadecyl pearlescente, isoheptadecyl pearlescense, isooctadecyl pearlescente, isononadecyl pearlescense, isoeicosyl pearlescente, isomethyl stearate, ethyl stearate, isopropyl stearate, isobutyl stearate, isoamyl stearate, isohexyl stearate, isoheptyl stearate, isooctyl stearate, isononyl stearate, isodecyl stearate, isoundecyl stearate, isodecyl stearate, isododecyl stearate, isopropyl stearate, isobutyl stearate, isopropyl stearate, Isotridecyl stearate, isotetradecyl stearate, isotentadecyl stearate, isotexadecyl stearate, isoheptadecyl stearate, isostearyl stearate, isooctadecyl stearate, isoeicosyl stearate, isomethyl nonadecanoate, isooctyl nonadecanoate, isopropyl nonadecanoate, isobutyl nonadecanoate, isoamyl nonadecanoate, isohexyl nonadecanoate, isoheptyl nonadecanoate, isooctyl nonadecanoate, isononyl nonadecanoate, isoundecyl nonadecanoate, isodecyl nonadecanoate, isotridecyl nonadecanoate, isotetradecyl nonadecanoate, isotentadecyl nonadecanoate, isohexadecyl nonadecanoate, isoheptadecyl nonadecanoate, isooctyl nonadecanoate, isopentadecanoate, isoheptadecyl nonadecanoate, isoeicosyl eicosyl, isopropyl arachidate, isohexadecyl arachidate, isooctyl arachidate, isopropyl, Isopentyl arachinate, isohexyl arachinate, isoheptyl arachinate, isooctyl arachinate, isononyl arachinate, isodecyl arachinate, isoundecyl arachinate, isododecyl arachinate, isotridecyl arachinate, isotetradecyl arachinate, isotentadecyl arachinate, isohexadecyl arachinate, isoheptadecyl arachinate, isooctyl arachinate, isoeicosyl eicosyl, isooctyl eicosyl, isopropyl heneicosyl, isobutyl eicosyl, isoamyl eicosyl, isohexyl heneicosyl, isoheptyl eicosyl, isooctyl eicosyl, isononyl eicosyl, isodecyl, isoundecyl, isododecyl, isotridecyl, isotetradecyl, isotridecyl, isotetradecyl, isotridecyl, isotride, Isohexanol eicosanoate, isoheptadecyl oecosanoate, isooctadecyl oecosanoate, isonicosanonol eicosanoate, isohexadecyl oecosanoate, isomethyl behenate, isopropyl behenate, isobutyl behenate, isoamyl behenate, isohexyl behenate, isoheptyl behenate, isooctyl behenate, isononyl behenate, isodecyl behenate, isoundecyl behenate, isotridecyl behenate, isotetradecyl behenate, isotentadecyl behenate, isohexadecyl behenate, isoheptadecyl behenate, isooctadecyl behenate, isohexadecyl behenyl behenate, isostearyl behenate, isoeicosanoyl behenate, isomyl behenate, isopropyl tricosanoate, isotridecyl oecosanoate, isopentyl tricosanoate, isohexyl tricosanoate, isopropyl tricosanoate, eicosanoate, isopentyl eicosanoate, isohexyl behenate, isooctyl behenyl behenate, isopentyl eicosanoate, isooctyl eicosanoyl eicosanoate, ethyl tricosanoate, isopropyl eicosanoyl eicosanoate, Isoheptyl eicosatrioate, isooctyl eicosatrioate, isononyl eicosatrioate, isodecyl eicosatrioate, isoundecyl eicosatrioate, isotridecyl ester eicosatrioate, isotetradecyl ester eicosatrioate, isotadecyl ester eicosatrioate, isohexadecyl ester tricosyl ester eicosatrioate, isoheptadecyl ester tricosyl ester eicosatrioate, isooctadecyl ester tricosyl ester, isonnonadecyl ester tricosyl ester, isoeicosyl ester tricosyl ester, isomethyl lignocaulite, isopropyl lignocaulite, isobutyl lignocaulite, isoamyl lignocaulite, isohexyl lignocaulite, isoheptyl lignocaulite, isooctyl lignocaulite, isononyl lignocaulite, isodecyl lignocaulite, isoundecyl lignocaulite, isotridecyl ester lignocaulite, isotetradecyl ester lignocaulite, isotadecyl ester lignocaulite, isohadecyl ester lignocaulite, isohexadecyl ester lignocaulite, isotridecyl ester lignocaulite, isotetradecyl ester, Isooctadecanol lignocaprate, isonicosanol lignocaprate, isoeicosyl lignocaprate, isomethyl pentacosanoate, isopropyl pentacosanoate, isobutyl pentacosanoate, isoamyl pentacosanoate, isohexyl pentacosanoate, isoheptyl pentacosanoate, isooctyl pentacosanoate, isononyl pentacosanoate, isodecyl pentacosanoate, isoundecyl pentacosanoate, isotridecyl ester, isotetradecyl ester, isotentadecyl ester, isohexadecyl ester, isoheptadecyl ester, isooctadecyl ester, isoeicosanoic acid, isoeicosanyl ester, isoeicosanoic acid isopropyl ester, isobutyl cerotic acid, isoamyl cerotic acid, isohexyl ceronate, isoheptyl ceronate, isooctyl cerotic acid, isononyl ester, cerotic acid, Isodecyl cerate, isoundecyl cerate, isodecyl cerate, isotridecyl cerate, isotetradecyl cerate, isotentadecyl cerate, isohexadecyl cerate, isoheptadecyl cerate, isooctadecyl cerate, and isoeicosyl cerate.

In some embodiments, the fatty acid ester contains at least two methylene groups.

As specific examples of fatty acid esters which may be employed in the present invention, there are included, but not limited to: iso-methyl isovalerate, iso-ethyl isovalerate, iso-propyl isovalerate, iso-butyl isovalerate, iso-amyl isovalerate, iso-hexyl isovalerate, iso-heptyl isovalerate, iso-octyl isovalerate, iso-nonyl isovalerate, iso-decyl isovalerate, iso-undecyl isovalerate, iso-dodecyl isovalerate, iso-tridecyl isovalerate, iso-tetradecyl isovalerate, iso-pentadecyl isovalerate, iso-hexadecyl isovalerate, iso-heptadecyl isovalerate, iso-octadecyl isovalerate, iso-nonadecyl isovalerate, iso-eicosyl isovalerate, iso-methyl isohexanoate, iso-ethyl isohexanoate, iso-isopropyl isohexanoate, iso-isobutyl isocaproate, iso-isoamyl isocaproate, iso-heptyl isocaproate, iso-octyl isocaproate, iso-nonyl isohexanoate, iso-decyl isocaproate, iso-undecyl isodecyl isocaproate, iso-dodecyl isocaproate, iso-tridecyl isocaproate, iso-hexyl isohexanoate, iso-heptyl isohexanoate, iso-hexyl, Isotetradecyl isohexanoate, isopentadecyl isohexanoate, isohexadecyl isohexanol isocaproate, isoheptadecyl isohexanoate, isooctadecyl isohexanoate, isoheptyl isoheptanoate, isooctyl isoheptanoate, isopropyl isoheptanoate, isobutyl isoheptanoate, isopentyl isoheptanoate, isohexyl isoheptanoate, isodecyl isoheptanoate, isoundecylanoate, isodecyl isoheptanoate, isotridecyl isotridecanoate, isotetradecyl isoheptanoate, isopentadecyl isoheptanoate, isoheptanoyl isoheptadecyl isodecyl isoheptanoate, isooctanoyl isodecyl, Isohexyl isooctanoate, isoheptyl isooctanoate, isooctyl isooctanoate, isononyl isooctanoate, isodecyl isooctanoate, isoundecyl isooctanoate, isotridecyl isooctanoate, isotetradecyl isooctanoate, isopentadecyl isooctanoate, isohexadecyl isooctanoate, isoheptadecyl isooctanoate, isooctadecyl isooctanoate, isononadecyl isooctanoate, isoeicosyl isononanoate, isooctyl isononanoate, isopropyl isononanoate, isobutyl isononanoate, isoamyl isononanoate, isohexyl isononanoate, isoheptyl isononanoate, isooctyl isononanoate, isononyl isononanoate, isodecyl isononanoate, isoundecyl isononanoate, isotridecyl isononanoate, isotetradecyl isononanoate, isopentadecyl isononanoate, isohexadecyl isononanoate, isoheptadecyl isononanoate, isonicotinyl isononanoate, isonadecyl isonicotinyl, isononanoate, isooctadecanol isononanoate, isononyl isononanoate, isoeicosanol isononanoate, isoeicosanoic acid isoeicosanoate, isomethyl isodecanedioate, isoethyl isodecanedioate, isopropyl isodecanedioate, isobutyl isodecanedioate, isoamyl isodecanedioate, isohexyl isodecanedioate, isoheptyl isodecanedioate, isooctyl isodecanedioate, isotridecyl isodecanedioate, isotetradecyl isodecanoate, isotadecanol isodecanoate, isohexadecyl isodecanedioate, isoheptadecyl isodecanoate, isooctadecanol isodecanoate, isononadecanoate, isoeicosanoate, isoundecylic acid isomethyl isoundecylate, isoundecylic acid isopropyl isoundecylate, isobutyl isoundecylate, isohexyl isoundecylate, isoeicosanoate, iso, Isodecyl isoundecanoate, isoundecyl isoundecanoate, isodecyl isoundecanoate, isotridecyl isoundecanoate, isotetradecyl isoundecanoate, isotadecanol isoundecanoate, isohexadecyl isoundecanoate, isoheptadecyl isoundecanoate, isostedecyl isoundecanoate, isonnonadecyl isoundecanoate, isoeicosyl isoundecanoate, isomethyl isolaurate, isoethyl isolaurate, isopropyl isolaurate, isobutyl isolaurate, isoamyl isolaurate, isohexyl isolaurate, isoheptyl isolaurate, isooctyl isolaurate, isononyl isolaurate, isodecyl isolaurate, isoundecyl isolaurate, isododecyl isolaurate, isotridecyl isolaurate, isotetradecyl isolaurate, isoteptadecyl isolaurate, isohexadecylisolaurate, isoheptadecyl isolaurate, Isooctadecanol isolaurate, isonicosanol isolaurate, isoeicosyl isolaurate, isomethyl isotridecanoate, isotridecanoic acid isopropyl, isotridecanoic acid isobutyl, isotridecanoic acid isoamyl isotridecanoic acid isohexyl isotridecanoate, isoheptyl isotridecanoate, isooctyl isotridecanoate, isononyl isotridecanoate, isodecyl isotridecanoate, isoundecanol isotridecanoate, isotridecanol isotridecanoate, isotetradecyl isotetradecanoate, isotentadecyl isotridecanoate, isotridecanol isotridecanoate, isotetradecyl isotridecanoate, isotridecyl isomyristate, isotetradecyl, isotetradecyl esters, isotride, Isoheptyl isomyristate, isooctyl isomyristate, isononyl isomyristate, isodecyl isomyristate, isoundecyl isomyristate, isotridecyl isomyristate, isotetradecyl isomyristate, isoheptadecyl isomyristate, isohexadecyl isomyristate, isoheptadecyl isomyristate, isooctadecyl isomyristate, isoundecyl isomyristate, isoeicosyl isomyristate, isomethyl isotentadecanoate, isooctyl isotentadecanoate, isopropyl isotentadecanoate, isobutyl isotentadecanoate, isoamyl isotentadecanoate, isohexyl isostearate, isoheptyl isoteptyl isoteptadecyl, isooctyl isotentadecanoate, isodecyl isotentadecanoate, isotentadecyl isoundecyl isopentadecanoate, isotridecyl ester, isotentadecanoate, isotetradecyl isopentadecanoate, isopentadecanoic, Isopentadecyl isopentadecanoate, isopicosanol isopalmitate, isopolylmethyl isopalmitate, isoproyl isopalmitate, isobutyl isopalmitate, isoamyl isopalmitate, isohexyl isopalmitate, isoheptyl isopalmitate, isooctyl isopalmitate, isoproyl isopalmitate, isoundecyl isopalmitate, isotridecyl isopalmitate, isopentadecyl isopalmitate, isopalm, Isopropyl isostearate, isobutyl isostearate, isoamyl isostearate, isohexyl isostearate, isoheptyl isoheptate, isooctyl isostearate, isononyl isostearate, isodecyl isostearate, isoundecyl isodecyl, isotridecyl isodecyl, isotetradecyl isodecyl, isohexadecyl isodecyl isoisoisoisodecyl isodecyl, isoeicosyl isodecyl, isomethyl isostearate, isopropyl isostearate, isobutyl isostearate, isoamyl isostearate, isohexyl isostearate, isoheptyl isostearate, isooctyl isodecyl isostearate, isodecyl isostearic acid, isodecyl isostearate, isodecyl isostearate, isodecyl isostearyl isodecyl isostearyl alcohol, isodecyl isostearyl isodecyl, Isoundecyl isostearate, isotridecyl isostearate, isotetradecyl isostearate, isotentadecyl isostearate, isotridecyl isostearate, isocetyl isostearate, isononadecyl isostearate, isomethyl isononadecanoate, isopropyl isononadecanoate, isobutyl isononadecanoate, isoamyl isononadecanoate, isohexyl isononadecanoate, isoheptyl isononadecanoate, isooctyl isononadecanoate, isononyl isononadecanoate, isodecyl isodecanoate, isoundecyl isoundecanoate, isotridecyl isodecanoate, isotridecyl isotetradecyl isononaoate, isotetradecyl isononadecanoate, isotentadecyl isopentadecyl isononadecanoate, isotridecyl isohexadecanoate, isoheptadecyl isodecanoate, isotridecyl isooctadecanoate, isostearyl isooctadecanoate, isotridecyl isooctadecanoate, Isononadecanoic acid iso-nonadecanoate, iso-eicosanoic acid ester, iso-methyl iso-arachidate, iso-ethyl iso-arachidate, iso-isobutyl iso-arachidate, iso-isoamyl iso-arachidate, iso-hexyl iso-arachidate, iso-heptyl iso-arachidate, iso-octyl iso-arachidate, iso-nonyl iso-arachidate, iso-decyl iso-arachidate, iso-undecyl iso-arachidate, iso-dodecyl iso-arachidate, iso-tridecyl iso-arachidate, iso-tetradecyl iso-arachidate, iso-pentadecyl iso-arachidate, iso-hexadecyl iso-arachidate, iso-heptadecyl iso-arachidate, iso-octadecyl iso-arachidate, iso-nonadecanoate, iso-eicosanoic acid ester, iso-methyl iso-heneicosanoic acid, iso-ethyl iso-heneicosanoic acid ester, iso-isopropyl iso-heneicosanoic acid, iso-eicosanoic acid ester, iso-isoamyl iso-eicosanoic acid, iso-eicosanoic acid ester, isooctyl isoeicosanoate, isononyl isoeicosanoate, isodecyl isoeicosanoate, isoundecyl isoeicosanoate, isotridecyl isoeicosanoate, isomyristyl isoeicosanoate, isotpentadecyl isoeicosanoate, isohexadecyl isoeicosanoate, isoheptadecyl isoeicosanoate, isostearyl isoeicosanoate, isooctyl isodocosanoate, isononadecyl isoeicosanoate, isoeicosanoyl isodocosanoic acid, isomethyl isobehenate, ethyl isobehenate, isopropyl isobehenate, isobutyl isobehenate, isoamyl isobehenate, isohexyl isobehenate, isoheptyl isobehenate, isooctyl isobehenate, isononyl isobehenate, isodecyl isobehenate, isoundecyl isobehenate, isotridecyl isobehenate, isotetradecyl isobehenate, isodocosanoic acid, isotridecyl isobehenate, isotridecyl isobehenyl isobehenate, isotetradecyl isobehenate, isobehenic acid, isotetradecyl isobehenate, isobehenic acid, isodocosanoic acid, iso, Isopentadecanol iso behenate, isocetyl iso behenate, iso heptadecyl iso behenate, iso octadecanol iso behenate, iso nonadecyl iso behenate, iso eicosyl iso behenate, iso methyl iso tricosyl, iso ethyl iso tricosyl, iso propyl iso tricosyl, iso isobutyl iso tricosyl, iso isoamyl iso tricosyl, iso hexyl iso tricosyl, iso heptyl iso tricosyl, iso octyl iso tricosyl, iso nonyl iso tricosyl, iso decyl iso tricosyl, iso undecyl iso eicosyl iso undecanyl iso triacyl, iso tridecyl iso behenyl iso tricosyl, iso tetradecyl iso icosyl iso eicosyl iso triacyl iso behenate, iso pentadecyl iso tricosyl iso eicosyl iso hexactyl iso icosyl, iso hexadecanol iso icosyl iso heptadecyl iso icosyl iso eicosyl iso triacyl iso eicosyl iso octadecanol iso nonacosyl iso triacyl iso eicosyl iso dodecanyl iso eicosyl iso, Isomethyl isolignocaulite, isooctyl isolignocaulite, isopropyl isolignocaulite, isobutyl isolignocaulite, isoamyl isolignocaulite, isohexyl isolignocaulite, isoheptyl isolignocaulite, isooctyl isolignocaulite, isononyl isolignocaulite, isodecyl isolignocaulite, isoundecyl isolignocaulite, isodecyl isolignocaulite, isotridecyl isolignocaulite, isotetradecyl isolignocaulite, isopentadecyl isolignocaulite, isoheptadecyl isolignocaulite, isoundecyl isolignocaulite, isoeicosanoic acid, isoeicosanoic acid isopropyl isoeicosanoic acid, isobutyl isoeicosanoic acid, isopentyl isoeicosanoic acid, isohexyl isoeicosanoic acid, isoheptanoic acid isoeicosanoic acid, isoeicosanoic acid isooctyl isoeicosanoic acid, isononyl isoeicosanoic acid, isoeicosanoic acid isopropyl isoeicosanoic acid, isoeicosanoic acid isoamyl, isoeicosanoic acid, Isodecyl isopentacetate, isoundecyl isopentacetate, isodecyl isoeicosapentanoate, isodecyl isopentacosanoate, isodecyl isoeicosapentate, isodecyl isocerocaprate, isobutyl isocerocaprate, isoamyl isocerocacate, isohexyl isocerocacate, isoheptyl isocerocacate, isooctyl isocerocacate, isononyl isocerocacate, isodecyl isocerocacate, isoundecyl isocerocacate, isodecyl isocerocacate isotridecanoate, isotetradecyl isocerocacate, isopentadecyl isocerocacate, isocerocacate isohexadecyl, isoheptadecyl isocerocacate, isooctadecyl isocerocacate, Isodecanoic acid isononadecanoic acid ester and isoeicosanoic acid ester.

The inventor finds that the problem of precipitation of saturated fatty acid salt can be effectively improved by adopting the fatty acid ester containing a certain ester group, the formability and the unwinding property of spandex spinning can be improved, and the precipitation risk caused by containing methylene can be effectively improved.

In some embodiments, the fatty acid ester contains two ester groups.

As specific examples of fatty acid esters which may be employed in the present invention, there are included, but not limited to: 1, 2-diglyceride, 1, 2-dihexanoic acid glyceride, 1, 2-diheptanoic acid glyceride, 1, 2-dioctanoate, 1, 2-dinoargyl acid glyceride, 1, 2-didecanoic acid glyceride, 1, 2-heneicosanoic acid glyceride, 1, 2-dilaurate, 1, 2-tricosanoic acid glyceride, 1, 2-dimyristate glyceride, 1, 2-pentacosanoic acid glyceride, 1, 2-dipalmitin, 1, 2-diclarinic acid glyceride, 1, 2-distearoyl glyceride, 1, 2-nonacosanoic acid glyceride, 1, 2-dihexanoic acid glyceride, 1, 2-docosanoic acid glyceride, 1, 2-tricosanoic acid glyceride, 1, 2-diclosanoic acid glyceride, 1, 2-diglycerol dimycocerolate, 1, 2-glyceryl dicicosanoate, 1, 2-glyceryl dicumolate, 1, 3-glyceryl dipentanoate, 1, 3-glyceryl dihexanoate, 1, 3-glyceryl diheptanoate, 1, 3-glyceryl dioctanoate, 1, 3-glyceryl dinoanoate, 1, 3-glyceryl didecanoate, 1, 3-glyceryl heneicosanoate, 1, 3-glyceryl dilaurate, 1, 3-glyceryl tricosanoate, 1, 3-glyceryl dimyristate, 1, 3-glyceryl pentacosanoate, 1, 3-glyceryl dipalmitate, 1, 3-glyceryl distearate, 1, 3-glyceryl nonacosanoate, 1, 3-glyceryl dihedral glyceride, 1, 3-glyceryl dicumulate, 1, 3-docosanoic acid glyceride, 1, 3-tricosanoic acid glyceride, 1, 3-lignoceric acid glyceride, 1, 3-docosanoic acid glyceride, and 1, 3-cerotic acid glyceride.

In some embodiments, the fatty acid ester contains three ester groups.

As specific examples of fatty acid esters which may be employed in the present invention, there are included, but not limited to: glyceryl tripentanoate, glyceryl trihexanoate, glyceryl triheptanoate, glyceryl trioctanoate, glyceryl trinonanoate, glyceryl triundecanoate, glyceryl trilaurate, glyceryl tridecanoate, glyceryl trimyristate, glyceryl dotrianoate, glyceryl tripalmitate, glyceryl tricerolate, glyceryl tristearate, glyceryl triacontanoate, glyceryl trioarachidate, glyceryl tricosanoate, glyceryl tribehenate, glyceryl tricosanoeicosanoate, glyceryl trilobate, glyceryl tristearate, glyceryl triscerolate.

In some embodiments, paraffins and/or naphthenes are also included.

In some embodiments, the paraffinic hydrocarbon is derived from a mineral oil.

In some embodiments, the cycloalkane is from a mineral oil.

In some embodiments, the mineral oil has a kinematic viscosity at 40 ℃ of 5 to 30mm as determined by GBT 265²/s。

As some illustrative illustrations of the invention, the kinematic viscosity of the mineral oil at 40 ℃ as determined by GBT 265 may be exemplified by: 5. 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30mm²And s. It will be appreciated by those skilled in the art that commercially available mineral oils, even in the same specification, sometimes exhibit a range of kinematic viscosities from manufacturer to manufacturer, from batch to batch. However, the range of kinematic viscosity is substantially consistent for the same specification type of mineral oil. In some embodiments of the invention, the mineral oil has a kinematic viscosity at 40 ℃ determined according to GBT 265The degree is 24-28mm²And/s, for example, 26 # white oil. In other embodiments, the mineral oil has a kinematic viscosity at 40 ℃ of 12.5 to 17.5mm as determined by GBT 265²And/s, for example, white oil No. 15. As some embodiments of the invention, the mineral oil has a kinematic viscosity at 40 ℃ of from 14.8 to 19.6mm, measured according to GBT 265²And/s, for example, No. 10 white oil. From a production cost perspective, in some embodiments, the mineral oil has a kinematic viscosity at 40 ℃ of 6-7.5 mm as determined by GBT 265²And/s, for example, white oil No. 7. Generally, silicone oil is added into spandex oil to reduce adhesion, improve unwinding property and achieve the effects of smoothness, astringency and non-adhesion. The inventors found that in the novel spandex oil agent without silicone oil provided by the present invention, the effect of the antistatic agent can be enhanced when the added mineral oil has a lower kinematic viscosity, and the inventors speculated that the possible reason for this is related to the compatibility of the antistatic agent in the mineral oil with a lower kinematic viscosity. However, the inventors have also found that mineral oils of lower kinematic viscosity, due to their higher volatility, also have an effect on barrier properties and smoothness. Through extensive research, the inventors also found that mineral oil of a specific kinematic viscosity may be associated with improved bottom blocking of spandex filament yarn packages.

The spandex oil agent provided by the invention can be added with antistatic agents which can be used in the field, such as nonionic surfactants, anionic surfactants and amphoteric surfactants, under the condition of not influencing other properties of the spandex oil agent. From the viewpoint of stability, an anionic surfactant is preferable.

Under the condition of not influencing other performances of the spandex oil agent provided by the invention, other auxiliary agents such as an antioxidant, a dispersing agent, a wetting agent, a stabilizing agent and the like can also be added into the spandex oil agent.

The preparation method of the spandex oil agent provided by the invention can be a conventional preparation method, and the technical problem to be solved by the invention is not influenced.

The second aspect of the invention provides spandex obtained by treating with the novel spandex oil agent as described above.

Detailed Description

The invention is further illustrated by the following specific examples. The phosphate esters employed in the examples are acidic and need to be neutralized before use, the neutralization methods being those well known to those skilled in the art.