Anti-wicking polyester industrial yarn oiling agent and preparation method thereof

Abstract

The invention discloses an anti-wicking polyester industrial filament oiling agent which is prepared from the following components in percentage by mass: 25-60% of a smoothing agent, 5-30% of an emulsifier, 5-30% of a bundling agent, 5-15% of a softening agent, 1-7% of an antistatic agent, 0.5-2.0% of an antioxidant, 0.5-2.0% of a pH regulator, 2-8% of an anti-wicking agent and 1-10% of water. Wherein the smoothing agent is a mixture of vegetable oil and synthetic ester. When the anti-wicking oil absorbent is used, an emulsion does not need to be prepared, fiber surfaces do not need to be pretreated, a crude oil oiling mode is directly adopted, the process is simpler and more environmentally friendly, the filament breakage and burr rate can be effectively reduced, smoke is little in the using process, the coking rate is low, and continuous production is facilitated.

Description

Technical Field

[0001] The invention belongs to the field of functional polyester industrial yarn production, and particularly relates to a compound synergistic anti-wicking polyester industrial yarn oil agent and a preparation method thereof. Background Art

[0002] Fiber wicking refers to the ability of fibers to transfer water from one place to another. Usually, water is transferred along the surface of the fiber, but when the liquid is absorbed by the fiber, it will pass through the fiber. Anti-wicking is to prevent or reduce the ability of the fiber to transfer water. Anti-wicking yarn is an important variety of polyester industrial yarn. Anti-wicking oil agent is used in the spinning process. The tension coefficient of the fiber surface becomes smaller, and it has good hydrophobicity, which can effectively reduce the "capillary phenomenon" and achieve the purpose of anti-wicking. With the development of the economy, the market demand for high-end light box advertising cloth, swimming pool fabrics, and high-end textilene fabrics continues to expand. The demand for anti-wicking polyester industrial yarn products is increasing rapidly, and the corresponding demand for anti-wicking oil agents is also increasing.

[0003] Chemical fiber oil is an indispensable auxiliary agent in chemical fiber processing and production. Its main function is to adjust the friction properties of the fiber, prevent or eliminate static electricity accumulation, and give the fiber smoothness, bundling, antistatic and other properties. Although the amount of chemical fiber oil used is very small, it plays a pivotal role in the quality of the fiber and has become an important factor affecting the high-quality development of the chemical fiber industry. Chemical fiber oil must have a certain oil film strength to play a smoothing role, reduce fiber hairiness, and reduce broken wires; it must have a certain heat resistance to reduce coking and blue smoke during use.

[0004] At present, there is a large gap between domestic oils and those of advanced countries in the world, especially in the use of functionalized spinning oils. The above problems cannot be solved well. In the production process of anti-wicking polyester industrial yarn, broken yarns, high hairiness, coking, blue smoke and other problems may occur. Anti-wicking spinning oils mainly rely on imports and are expensive. Independent research and development of anti-wicking oils has a positive effect on improving my country's textiles and promoting the export of light industrial products. Chinese invention patent CN 104562280 A discloses an anti-wicking ultra-low shrinkage polyester industrial yarn. During the manufacturing process, a low-temperature air plasma treatment process is added before oiling to ensure that the effective ingredients in the anti-wicking agent are attached to the fiber surface. Chinese invention patent application CN 117510756 A uses octadecyl acrylate as a functional monomer to replace traditional fluorinated long carbon chain monomers as the main component of anti-wicking. The prepared anti-wicking emulsion has a smaller particle size and a higher emulsion concentration. However, pretreatment of the fiber surface complicates the preparation process; using emulsion oiling requires a large amount of water to prepare the emulsion, which increases production costs and is not environmentally friendly. Summary of the invention

[0005] The purpose of the present invention is to provide a high temperature resistant, friction resistant, and easy-to-wet anti-wicking oil agent for the production process of anti-wicking polyester industrial yarn, which can ensure the normal and continuous production of industrial yarn. The anti-wicking polyester industrial yarn oil agent of the present invention fills the gap of domestic anti-wicking polyester industrial filament oil agent.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The invention discloses an anti-wicking polyester industrial filament oil agent, which is composed of the following components in percentage by mass: 25-60% of a smoothing agent, 5-30% of an emulsifier, 5-30% of a bundling agent, 5-15% of a softener, 1-7% of an antistatic agent, 0.5-2.0% of an antioxidant, 0.5-2.0% of a pH regulator, 2-8% of an anti-wicking agent, and 1-10% of water; wherein the smoothing agent is a mixture of vegetable oil and synthetic ester.

[0008] Considering that acidic and alkaline catalysts are used in the synthesis process of each component, catalyst residues may affect the performance of the compounded oil, so it is necessary to add a pH adjuster to adjust the pH of the oil to within the range of weak acid to weak alkaline.

[0009] Preferably, the anti-wicking polyester industrial filament oil agent is composed of the following components in percentage by mass: 30-55% of a smoothing agent, 10-25% of an emulsifier, 7-25% of a sizing agent, 7-13% of a softener, 2-6% of an antistatic agent, 1.0-1.5% of an antioxidant, 1.0-1.5% of a pH regulator, 4-7% of an anti-wicking agent, and 2-8% of water.

[0010] The vegetable oil is rapeseed oil, coconut oil or a mixture of the two.

[0011] The synthetic ester is one of glycerol trioleate, trimethylolpropane trioleate and octyldodecyl oleate or a mixture of two or more thereof.

[0012] The mass ratio of the vegetable oil to the synthetic ester is 1:1 to 1:4, preferably 1:1 to 1:2.

[0013] The present invention uses a mixture of vegetable oil and synthetic ester as a lubricant. Vegetable oil has good lubricity, but is easily oxidized to produce colloid during use, and the colloid is easily coked when heated during high-speed spinning; synthetic esters have good stability and hydrolysis, but have a deviation in lubrication performance. The two are mixed in a certain proportion, while taking into account the stability of the synthetic ester and the lubricity of the vegetable oil, the overall performance of the oil can be improved, the coking residue can be reduced during use, the silk strips can be protected from damage, and the generation of white powder can be reduced.

[0014] The emulsifier is one or a mixture of castor oil polyoxyethylene ether, Span, fatty acid polyoxyethylene ether, polyethylene glycol oleate, tallow amine polyoxyethylene ether, octadecylamine polyoxyethylene ether.

[0015] In some embodiments, the castor oil polyoxyethylene ether is selected from castor oil polyoxyethylene ether EL-40 (ie, emulsifier EL-40).

[0016] In some embodiments, the fatty acid polyoxyethylene ether is selected from coconut oil polyether CE-10 (ie, emulsifier CE-10).

[0017] In some embodiments, the polyethylene glycol oleate is a monoester formed by the reaction of polyethylene glycol with Mw=500-1000 and oleic acid, and is specifically selected from polyethylene glycol monooleate (PEG600MO).

[0018] In some embodiments, the tallow amine polyoxyethylene ether is selected from tallow amine polyoxyethylene ether NE1805.

[0019] Specifically, the emulsifier can be a mixture of castor oil polyoxyethylene ether, tallow amine polyoxyethylene ether and Span in a mass ratio of 3:1:1, or a mixture of castor oil polyoxyethylene ether, fatty acid polyoxyethylene ether and Span in a mass ratio of 2.5:2.5:1, or a mixture of fatty acid polyoxyethylene ether, castor oil polyoxyethylene ether and polyethylene glycol oleate in a mass ratio of 1:1:1.

[0020] The sizing agent is one or a mixture of higher fatty acid triethanolamine ester, butanol random polyether BPE-1000, triethanolamine monooleate, and betaine.

[0021] In some embodiments, the higher fatty acid triethanolamine ester is selected from triethanolamine stearate.

[0022] The softener is one or a mixture of two of pentaerythritol fatty acid ester, fatty acid ethanolamide and sulfonated succinate.

[0023] In some embodiments, the pentaerythritol fatty acid ester is selected from pentaerythritol palmitate, and the specific pentaerythritol palmitate can be selected from TMP palm kernel ester (brand number: 1802).

[0024] In some embodiments, the fatty acid ethanolamide is selected from oleic acid diethanolamide.

[0025] In some embodiments, the sulfosuccinate ester is selected from dioctyl sodium sulfosuccinate.

[0026] The antistatic agent is one or a mixture of dimethylsiloxane alcohol ether copolymer phosphate, alkyl phosphate diethanolamine, fatty alcohol polyoxyethylene ether, and secondary alkyl sodium sulfonate.

[0027] When the antistatic agent contains sodium secondary alkyl sulfonate, the mass percentage of the sodium secondary alkyl sulfonate does not exceed 3%.

[0028] In some embodiments, the dimethicone ether copolymer phosphate is selected from dimethicone PEG-7 phosphate.

[0029] In some embodiments, the sodium secondary alkyl sulfonate is selected from sodium secondary alkyl sulfonate Mersolat H95.

[0030] The antioxidant is a phosphite antioxidant, which can be selected from one of pentaerythritol diphosphite, sodium hypophosphite, triphenyl phosphite or a mixture of several thereof.

[0031] The pH regulator is one of sodium carbonate, sodium bicarbonate, acetic acid and citric acid or a mixture of several of them.

[0032] The anti-wicking agent is one or a mixture of fluorinated acrylic acid ester, polymethylsiloxane, and N-hydroxymethyl stearamide, preferably a mixture of one or two of fluorinated acrylic acid ester and polymethylsiloxane.

[0033] In some embodiments, the fluorinated acrylate is selected from perfluoroalkyl acrylates.

[0034] A method for preparing an anti-wicking polyester industrial filament oil comprises: weighing each component according to mass percentage, adding a smoothing agent, an emulsifier, a sizing agent, and an antistatic agent, and stirring at a stirring temperature of 30 to 60° C. for 60 to 120 minutes; after stirring evenly, adding a pH regulator, an anti-wicking agent, and water, and stirring at a stirring temperature of 15 to 45° C. for 60 to 120 minutes to obtain a clear and transparent oil-in-water system, namely the anti-wicking polyester industrial filament oil.

[0035] Compared with the existing anti-wicking oil agent, the present invention has the following positive effects:

[0036] The preparation process of the oil agent of the present invention is simple, the raw materials used are green and environmentally friendly, the product is safe and stable, and the preparation cost is low.

[0037] The present invention prepares a low-friction, easy-to-wet, and super-heat-resistant anti-wicking oil agent by compounding a smoothing agent, a bundling agent, an antistatic agent, and an emulsifier in a specific ratio. The anti-wicking oil agent has a high viscosity and a fast wetting speed. In the high-speed and ultra-high-speed spinning process, it can be quickly and evenly spread on the fiber surface, improve the cohesion and wear resistance of the tow, reduce the damage to the silk strips and the generation of white powder, and at the same time protect the fiber from being scratched, improve the fiber bundling and antistatic properties, and avoid the occurrence of doubling and broken silk in the post-processing process. The oil agent is added with a component with good heat resistance to ensure that the oil agent has good heat resistance and reduce blue smoke and coking. The fluorine-containing or silicon-containing compound has an amphiphilic group, which can form a film on the fiber surface after high-temperature treatment, and the hydrophobic group is distributed on the fiber surface, so that the prepared product has the same excellent anti-wicking effect, a wide range of applications, and high added value.

[0038] When using the anti-wicking oil absorption agent of the present invention, there is no need to prepare an emulsion or pretreat the fiber surface. The crude oil can be directly oiled, and the process is simpler and more environmentally friendly. It can effectively reduce the rate of broken wires and burrs, and there is less smoke and a low coking rate during use, which is conducive to continuous production. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below in conjunction with embodiments. The following embodiments are for explanation of the present invention but the present invention is not limited to the following embodiments.

[0040] The components used in the present invention are all known products, and some of the component manufacturers are as follows: butanol random polyether BPE-1000 (Haian Petrochemical), octadecyl diethanolamine (Haian Petrochemical), octadecylamine polyoxyethylene ether AC1805 (Haian Petrochemical), and perfluoroalkyl acrylate (Taipuda New Materials).

[0041] Example 1

[0042] Weigh 40 parts of smoothing agent (20 parts of rapeseed oil, 20 parts of triolein), 25 parts of emulsifier (15 parts of castor oil polyoxyethylene ether EL-40, 5 parts of tallow amine polyoxyethylene ether NE1805, 5 parts of Span 80), 10 parts of sizing agent (5 parts of triethanolamine stearate, 5 parts of butanol random polyether BPE-1000), 10 parts of softener (8 parts of TMP palm kernel ester (brand: 1802), 2 parts of sodium dioctyl sulfosuccinate), 4 parts of antistatic agent (2 parts of sodium secondary alkyl sulfonate Mersolat H95, 2 parts of fatty alcohol polyoxyethylene ether MOA-3 2 parts), 1.5 parts of antioxidant (sodium hypophosphite), 1.5 parts of pH adjuster (sodium carbonate), 5 parts of anti-wicking agent (polymethyl polysiloxane), 3 parts of water; add smoothing agent, emulsifier, sizing agent, antistatic agent, and stir at a temperature of 45°C for 30 minutes; after stirring evenly, add pH adjusting stabilizer, anti-wicking agent and water in turn and stir, stir at a temperature of 30°C for 45 minutes to obtain a clear and transparent oil-in-water system, filter, prepare oil agent, and seal.

[0043] Example 2

[0044] Weigh 53 parts of smoothing agent (33 parts of rapeseed oil, 20 parts of triolein), 12 parts of emulsifier (5 parts of castor oil polyoxyethylene ether EL-40, 5 parts of coconut oil polyether CE-10, 2 parts of Span 80), 8 parts of sizing agent (4 parts of butanol random polyether BPE-1000, 4 parts of triethanolamine monooleate), 7 parts of softener (sodium dioctyl sulfosuccinate), 5 parts of antistatic agent (polydimethylsiloxane PEG-7 phosphate), 1.5 parts of antioxidant (sodium hypophosphite), 1.5 parts of pH adjuster (acetic acid), 5 parts of anti-wicking agent (polymethylpolysiloxane), 7 parts of water; prepare an oil according to the preparation method of Example 1.

[0045] Example 3

[0046] Weigh 50 parts of smoothing agents (25 parts of rapeseed oil, 25 parts of octyl dodecanol oleate), 15 parts of emulsifiers (5 parts of coconut oil polyether CE-10, 5 parts of castor oil polyoxyethylene ether EL-40, 5 parts of polyethylene glycol monooleate PEG600MO), 7 parts of sizing agents (2 parts of triethanolamine stearate, 5 parts of triethanolamine monooleate), 9 parts of softeners (TMP palm kernel ester (brand: 1802)), 4 parts of antistatic agents (octadecyl diethanolamine), 1 part of antioxidants (pentaerythritol diphosphite), 1 part of pH regulator (sodium bicarbonate), 7 parts of anti-wicking agents (N-hydroxymethyl octadecanoic acid amide), and 6 parts of water; prepare an oil according to the preparation method of Example 1.

[0047] Comparative Example 1

[0048] Weigh 37 parts of smoothing agent (30 parts of coconut oil, 7 parts of trimethylolpropane trioleate), 15 parts of emulsifier (5 parts of castor oil polyoxyethylene ether EL-40, 5 parts of polyethylene glycol oleate PEG600MO, 5 parts of octadecylamine polyoxyethylene ether AC1805), 15 parts of sizing agent (5 parts of betaine, 10 parts of triethanolamine monooleate), weigh 11 parts of softener (8 parts of TMP palm kernel ester (brand: 1802), 3 parts of oleic acid diethanolamide), 6 parts of antistatic agent (3 parts of dodecyl phosphate diethanolamine salt, 3 parts of secondary alkyl sodium sulfonate Mersolat H95), 1 part of antioxidant (triphenyl phosphite), 1 part of pH regulator (sodium bicarbonate), 6 parts of anti-wicking agent (perfluoroalkyl acrylate), 8 parts of water; prepare an oil according to the preparation method of Example 1.

[0049] Comparative Example 2

[0050] Weigh 45 parts of smoothing agent (25 parts of coconut oil, 20 parts of triolein), 10 parts of emulsifier (5 parts of castor oil polyoxyethylene ether EL-40, 5 parts of octadecylamine polyoxyethylene ether AC1805), 17 parts of sizing agent (10 parts of triethanolamine stearate, 7 parts of betaine), 13 parts of softener (8 parts of TMP palm kernel ester (brand: 1802), 5 parts of oleic acid diethanolamide), 5 parts of antistatic agent (5 parts of secondary alkyl sodium sulfonate Mersolat H95), 1.5 parts of antioxidant (1 part of sodium hypophosphite, 0.5 part of triphenyl phosphite), 1.5 parts of pH regulator (0.5 parts of acetic acid, 1 part of citric acid), 5 parts of anti-wicking agent (3 parts of perfluoroalkyl acrylate, 2 parts of polymethylpolysiloxane), 2 parts of water; prepare an oil according to the preparation method of Example 1.

[0051] The oils prepared in Examples 1 to 3 and Comparative Examples 1 to 2 were investigated, and the test method was as follows:

[0052] Smoke test: Weigh 15g of sample and place it in a quartz beaker. Heat the beaker on an electric stove to 250℃ and observe the amount of smoke emitted by the oil.

[0053] Coking test: measure a drop of sample on a steel test piece, place the steel test piece in a 250℃ oven for 5 minutes, take it out, cool it, and observe the coking of the sample on the steel test piece.

[0054] The fiber breakage frequency and hairiness test were carried out on the spinning machine under the following spinning process conditions (stretching temperature 250°C, stretching speed 4300 m / s, oiling by nozzle, oiling rate 0.75%), and the hairiness rate and fiber breakage frequency were observed and recorded.

[0055] Anti-wicking test: The sample was heat treated (placed in a 150°C oven for 5 minutes), suspended in a color developer (pure blue ink), and wet balanced for 1 hour at a temperature of 25°C and a relative humidity of 65%. After 1 hour, the height of the color developer's climb was read with a ruler.

[0056] Table 1. Oil performance evaluation

[0057] Oil Smoke output Wire breaking frequency Hairiness rate Coking degree Anti-wicking effect Example 1 few Low few light good Comparative Example 1 less Higher Higher Higher better Example 2 few Low less Lighter better Example 3 few Low less Lighter generally Comparative Example 2 less Higher Higher Higher better

[0058] It can be seen from the experimental results that the smoke generation of the oils prepared in the embodiments and the comparative examples is good, which is because most of the selected components are resistant to high temperatures; however, the coking degree of the oils prepared in comparative examples 1 and 2 is high, resulting in a high frequency of broken yarns and a high hairiness rate, which is because in comparative example 1, the amount of synthetic ester added is too small, the proportion of vegetable oil is high, the oil is easily oxidized to produce colloid, and is easy to coke at high temperatures, while the amount of sodium secondary alkyl sulfonate added in comparative example 2 is high, and it becomes a brittle solid after heating, and the residual rate is high; when Example 3 is used for spinning, the spinning condition is good, but the anti-wicking effect of the product is general, which is due to the water repellency deviation of N-hydroxymethyl octadecanoic acid amide, and the surface tension is higher than that of silicon-containing or fluorine-containing anti-wicking agents; the oils prepared in Examples 1 and 2 are used for spinning, the spinning condition is good, the product has a good anti-wicking effect, and both can be used for the production of anti-wicking polyester industrial yarns, but the performance of Example 1 is more superior. Therefore, the oil prepared by Example 1 is preferably used for the production of anti-wicking polyester industrial yarn, which can reduce the phenomena of doubling, broken wire, and blue smoke and coking. In addition, the oil is directly used in the way of crude oil oiling, and the process is simpler and environmentally friendly, and the prepared product has the same excellent anti-wicking effect. The present invention plays a complementary role in performance through the compounding of different components, and gives the fiber smoothness, clustering, antistatic and other functions. According to the production process requirements, the proportions of smoothing agent, emulsifier, clustering agent, etc. can meet the diversified needs of production, improve fiber quality, and reduce costs.

[0059] In addition, it should be noted that the specific parameters, names, etc. of the specific embodiments described in this patent book may be different: any equivalent or simple changes made based on the concept and principle of the patent of the present invention are included in the protection scope of the patent of the present invention: technicians in the technical field to which the present invention belongs can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the scope defined in the claims of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. An anti-wicking polyester industrial filament oil, characterized in that: It is composed of the following components in percentage by mass: 25-60% of a smoothing agent, 5-30% of an emulsifier, 5-30% of a sizing agent, 5-15% of a softener, 1-7% of an antistatic agent, 0.5-2.0% of an antioxidant, 0.5-2.0% of a pH regulator, 2-8% of an anti-wicking agent, and 1-10% of water; wherein the smoothing agent is a mixture of vegetable oil and synthetic ester, and the mass ratio of the vegetable oil to the synthetic ester is 1:1 to 1:

4.

2. The anti-wicking polyester industrial filament oil according to claim 1, characterized in that: It is composed of the following components in percentage by mass: 30-55% of a smoothing agent, 10-25% of an emulsifier, 7-25% of a bundling agent, 7-13% of a softener, 2-6% of an antistatic agent, 1.0-1.5% of an antioxidant, 1.0-1.5% of a pH regulator, 4-7% of an anti-wicking agent, and 2-8% of water.

3. The anti-wicking polyester industrial filament oil according to claim 1 or 2, characterized in that: The vegetable oil is rapeseed oil, coconut oil or a mixture of two thereof; the synthetic ester is glycerol trioleate, trimethylolpropane trioleate and octyldodecyl oleate or a mixture of two or more thereof.

4. The anti-wicking polyester industrial filament oil according to claim 1 or 2, characterized in that: The mass ratio of the vegetable oil to the synthetic ester is 1:1 to 1:

2.

5. The anti-wicking polyester industrial filament oil according to claim 1 or 2, characterized in that: The emulsifier is one or a mixture of castor oil polyoxyethylene ether, Span, fatty acid polyoxyethylene ether, polyethylene glycol oleate, tallow amine polyoxyethylene ether, octadecylamine polyoxyethylene ether; the polyethylene glycol oleate is a monoester formed by the reaction of polyethylene glycol with Mw=500-1000 and oleic acid.

6. The anti-wicking polyester industrial filament oil according to claim 1 or 2, characterized in that: The sizing agent is one or a mixture of higher fatty acid triethanolamine ester, butanol random polyether BPE-1000, triethanolamine monooleate, and betaine.

7. The anti-wicking polyester industrial filament oil according to claim 1 or 2, characterized in that: The softener is one or a mixture of two of pentaerythritol fatty acid ester, fatty acid ethanolamide and sulfonated succinate.

8. The anti-wicking polyester industrial filament oil according to claim 1 or 2, characterized in that: The antistatic agent is one or a mixture of dimethylsiloxane alcohol ether copolymer phosphate, alkyl phosphate diethanolamine, fatty alcohol polyoxyethylene ether, and secondary alkyl sodium sulfonate; when the antistatic agent contains secondary alkyl sodium sulfonate, the mass percentage of the secondary alkyl sodium sulfonate does not exceed 3%; The anti-wicking agent is one or a mixture of fluorinated acrylic acid ester, polymethylsiloxane, and N-hydroxymethyl stearamide, preferably a mixture of one or two of fluorinated acrylic acid ester and polymethylsiloxane.

9. The anti-wicking polyester industrial filament oil according to claim 1 or 2, characterized in that: The antioxidant is a phosphite antioxidant; the phosphite antioxidant is selected from one or a mixture of pentaerythritol diphosphite, sodium hypophosphite, triphenyl phosphite; The pH regulator is one of sodium carbonate, sodium bicarbonate, acetic acid and citric acid or a mixture of several of them.

10. A method for preparing the anti-wicking polyester industrial filament oil according to claim 1, characterized in that: include: Weigh each component according to mass percentage, add a smoothing agent, an emulsifier, a sizing agent, and an antistatic agent, and stir at a stirring temperature of 30 to 60° C. for 60 to 120 min; after stirring evenly, add a pH adjuster, an anti-wicking agent, and water and stir at a stirring temperature of 15 to 45° C. for 60 to 120 min to obtain an anti-wicking polyester industrial filament oil agent.