阅读说明：本技术 一种氨纶纺丝用油剂的制备及使用方法 (Preparation and use methods of oil agent for spandex spinning ) 是由 周永生 李军锋 张富彩 于 2019-12-17 设计创作，主要内容包括：一种氨纶纺丝用油剂的制备及使用方法,氨纶纺丝用油剂的成分中含有10～40重量份的矿物油、5～30重量份的有机硅油、5～10重量份的合成酯、10～20重量份的脂肪酸聚氧乙烯酯、5～10重量份的改性硅油、1～5重量份的防粘连剂、1～2重量份的抗静电剂,本发明只适用于干法氨纶纺丝或是熔融氨纶纺丝而不适用于湿法氨纶纺丝,在干法氨纶纺丝或是熔融氨纶纺丝中每百公斤氨纶纺丝中使用氨纶纺丝用油剂的上油量控制在5～7公斤,使用氨纶纺丝用油剂的上油方式或采用经罗拉上油,或采用喷油嘴上油,氨纶纺丝用油剂的平滑性、集束性、抗静电性均非常优良,不但能保证氨纶纺丝生产顺利进行,也为后续使用特别是均匀退绕提供了质量保障。(A preparation method and a use method of an oiling agent for spandex spinning are disclosed, wherein the oiling agent for spandex spinning comprises 10-40 parts by weight of mineral oil, 5-30 parts by weight of organic silicone oil, 5-10 parts by weight of synthetic ester, 10-20 parts by weight of polyoxyethylene fatty acid ester, 5-10 parts by weight of modified silicone oil, 1-5 parts by weight of an anti-blocking agent and 1-2 parts by weight of an antistatic agent, the preparation method is only suitable for dry spandex spinning or melt spandex spinning but not for wet spandex spinning, the oiling amount of the oiling agent for spandex spinning used in every hundred kilograms of spinning in the dry spandex spinning or melt spandex spinning is controlled to be 5-7 kilograms, the oiling mode of the oiling agent for spandex spinning is that a roller is used or oil is used for oiling, or an oil nozzle is used for oiling, the smoothness, the bundling property and the antistatic property of the oiling agent for spandex spinning are all excellent, and the smooth production of spandex spinning can be ensured, and also provides quality guarantee for subsequent use, particularly for uniform unwinding.)

1. A preparation and application method of a spandex spinning oil agent, the spandex spinning oil agent contains mineral oil, organic silicone oil, synthetic ester, polyoxyethylene fatty acid ester, modified silicone oil, an anti-adhesion agent and an antistatic agent, and is characterized in that:

the oil agent for spandex spinning comprises the following components in parts by weight:

10-40 parts of mineral oil, 5-30 parts of organic silicone oil, 5-10 parts of synthetic ester, 10-20 parts of polyoxyethylene fatty acid ester, 5-10 parts of modified silicone oil, 1-5 parts of anti-adhesion agent and 1-2 parts of antistatic agent;

the viscosity of the mineral oil is required to be controlled within 3-50 mp_a.s；

The organic silicone oil is dimethyl silicone oil and the viscosity is controlled to be 5-50 mp_a.s；

The synthetic ester is required to be any one of isooctyl sebacate, trimethylolpropane oleate, pentaerythritol oleate and sorbitan oleate, or a combination of any two of the esters, or a combination of any three of the esters;

the polyoxyethylene fatty acid ester is any one of polyoxyethylene monolaurate, polyoxyethylene diester laurate, polyoxyethylene castor oil ester and polyoxyethylene oleate, or a combination of any two of the polyoxyethylene monolaurate, the polyoxyethylene diester laurate, the polyoxyethylene castor oil ester and the polyoxyethylene oleate, or a combination of any three of the polyoxyethylene castor oil ester and the polyoxyethylene oleate;

modified silicone oil or polyether modified silicone oil, or amino modified silicone oil or hydroxyl modified silicone oil is required;

the anti-blocking agent is required to be either oleamide or erucamide or the combination of the two;

the antistatic agent is any one of isomeric dodecyl alcohol polyoxyethylene ether, isomeric tridecyl alcohol polyoxyethylene ether and phosphate potassium salt, or a combination of any two of the isomeric dodecyl alcohol polyoxyethylene ether, the isomeric tridecyl alcohol polyoxyethylene ether and the phosphate potassium salt, or a combination of three of isomeric dodecyl alcohol polyoxyethylene ether, isomeric tridecyl alcohol polyoxyethylene ether and phosphate potassium salt;

respectively adding 10-40 parts by weight of mineral oil, 5-30 parts by weight of organic silicone oil, 5-10 parts by weight of synthetic ester, 10-20 parts by weight of polyoxyethylene fatty acid ester, 5-10 parts by weight of modified silicone oil, 1-5 parts by weight of anti-blocking agent and 1-2 parts by weight of antistatic agent into a stainless steel stirring kettle for fully stirring, then gradually heating the stainless steel stirring kettle to 50-60 ℃, fully stirring for 1-2 hours again, then heating the stainless steel stirring kettle to 100 ℃, vacuumizing for 1-2 hours under-0.1 Mpa, finally cooling the stainless steel stirring kettle to 30-40 ℃, taking out the kettle, filtering the kettle by a 20-micron filter to prepare the oiling agent for spinning spandex, wherein the viscosity of the mp oil agent for spinning is required to be controlled to be 5-20 microns_a.s；

The oiling agent for spandex spinning is used for dry spandex spinning or melt spandex spinning, the oiling amount of every hundred kilograms of spandex spinning is controlled to be 5-7 kilograms, and the oiling mode is that oiling is performed by a roller or an oil nozzle.

Technical Field

The invention belongs to the technical field of oil for preparing fibers, and particularly relates to a preparation method and a use method of an oil for spandex spinning.

Background

Spandex was originally developed and produced by DuPont, also called Lycra fiber, and introduced with foreign technology and called as Spandex in China in the 21 st century, and through the development of 20 years to the end of 2018, the domestic yield of Spandex has increased to 80 ten thousand tons, and the yield has increased at the rate of 12% every year, and is the first in the world.

Spandex is localized from raw material supply to production process and equipment manufacture, but the oil used for spandex spinning is not localized all the time and is monopolized by foreign oil companies, and the reasons are pursued:

firstly, the research and development of the oil agent is late, secondly, the oil agent is too important to spandex spinning and subsequent processing, if the oil agent can not meet the requirements, the spandex spinning is not smooth in light, and great economic loss can be caused in heavy, so that enterprises are forbidden.

Because of the existence of carbamate polar groups in the structure of spandex fibers, spandex fibers are endowed with elasticity, and simultaneously, spandex filaments are easy to adhere to each other, and if a spinning cake is longer, the adhesion phenomenon is more serious, and even scrapping is caused.

The development history of the spandex spinning finish approximately goes through three development stages:

the oil agent is mainly prepared from mineral oil and synthetic ester at the initial development stage, and the oil agent enables spandex to have poor spinnability and serious adhesion;

the second is an oiling agent prepared by taking mineral oil, silicone oil and modified silicone oil as main materials, although the spinnability of spandex is improved, the low surface strength of the silicone oil causes poor forming and easy slipping of the spandex spinning cake, and the difference of unwinding tension of the inner layer and the outer layer of the spandex spinning cake is large;

thirdly, anti-adhesion components such as stearate are added on the basis, but the problems that the oil agent is unstable and easy to precipitate, the pipeline is blocked in production and application and the like exist.

The development of high-quality oil for spandex spinning is particularly important for promoting the synchronous development of spandex.

Disclosure of Invention

The invention provides a preparation method and a use method of an oiling agent for spandex spinning, the oiling agent for spandex spinning is colorless transparent liquid, has the characteristics of stable performance, no precipitation and no pipeline blockage of the oiling agent, improves the production efficiency of spandex spinning, ensures uniform unwinding tension of the inner layer and the outer layer of a spinning cake, is not adhered and is easy to unwind, and provides quality guarantee for subsequent processing.

In order to achieve the purpose, the invention adopts the following technical scheme:

a preparation and application method of a spandex spinning oil agent, the spandex spinning oil agent contains mineral oil, organic silicone oil, synthetic ester, polyoxyethylene fatty acid ester, modified silicone oil, an anti-adhesion agent and an antistatic agent, and is characterized in that:

the oil agent for spandex spinning comprises the following components in parts by weight:

10-40 parts of mineral oil, 5-30 parts of organic silicone oil, 5-10 parts of synthetic ester, 10-20 parts of polyoxyethylene fatty acid ester, 5-10 parts of modified silicone oil, 1-5 parts of anti-adhesion agent and 1-2 parts of antistatic agent;

the viscosity of the mineral oil is required to be controlled within 3-50 mp_a.s；

The organic silicone oil is dimethyl silicone oil and the viscosity is controlled to be 5-50 mp_a.s；

The synthetic ester is required to be any one of isooctyl sebacate, trimethylolpropane oleate, pentaerythritol oleate and sorbitan oleate, or a combination of any two of the esters, or a combination of any three of the esters;

the polyoxyethylene fatty acid ester is any one of polyoxyethylene monolaurate, polyoxyethylene diester laurate, polyoxyethylene castor oil ester and polyoxyethylene oleate, or a combination of any two of the polyoxyethylene monolaurate, the polyoxyethylene diester laurate, the polyoxyethylene castor oil ester and the polyoxyethylene oleate, or a combination of any three of the polyoxyethylene castor oil ester and the polyoxyethylene oleate;

modified silicone oil or polyether modified silicone oil, or amino modified silicone oil or hydroxyl modified silicone oil is required;

the anti-blocking agent is required to be either oleamide or erucamide or the combination of the two;

the antistatic agent is any one of isomeric dodecyl alcohol polyoxyethylene ether, isomeric tridecyl alcohol polyoxyethylene ether and phosphate potassium salt, or a combination of any two of the isomeric dodecyl alcohol polyoxyethylene ether, the isomeric tridecyl alcohol polyoxyethylene ether and the phosphate potassium salt, or a combination of three of isomeric dodecyl alcohol polyoxyethylene ether, isomeric tridecyl alcohol polyoxyethylene ether and phosphate potassium salt;

respectively adding 10-40 parts by weight of mineral oil, 5-30 parts by weight of organic silicone oil, 5-10 parts by weight of synthetic ester, 10-20 parts by weight of polyoxyethylene fatty acid, 5-10 parts by weight of modified silicone oil, 1-5 parts by weight of anti-blocking agent and 1-2 parts by weight of antistatic agent into a stainless steel stirring kettle in sequence for fully stirring, then gradually heating the stainless steel stirring kettle to 50-60 ℃, and fully stirring for 1-2 hours againThen, heating the stainless steel stirring kettle to 100 ℃, vacuumizing for 1-2 hours under-0.1 Mpa, finally cooling the stainless steel stirring kettle to 30-40 ℃, taking out of the kettle, and filtering by a 20-micron filter to prepare the spandex spinning oil agent, wherein the viscosity of the spandex spinning oil agent is required to be controlled to be 5-20 mp_a.s；

The oiling agent for spandex spinning is used for dry spandex spinning or melt spandex spinning, the oiling amount of every hundred kilograms of spandex spinning is controlled to be 5-7 kilograms, and the oiling mode is that oiling is performed by a roller or an oil nozzle.

Due to the adoption of the technical scheme, the invention has the following beneficial effects:

1. repeated proportioning tests prove that the spandex spinning oil agent prepared according to the proportioning is reasonable in proportioning, the prepared spandex spinning oil agent has the characteristics of stable system, colorlessness and transparency, and the spandex spinning oil agent does not generate precipitation and precipitation phenomena.

2. According to the using method of the invention, the phenomenon of pipeline blockage can not be generated in the oiling process of spandex spinning, and the production efficiency of the spandex spinning is improved.

3. Because the oil agent for spandex spinning contains modified silicone oil and an anti-blocking agent, an isolation layer can be effectively formed among spandex filaments and a good anti-blocking effect is achieved.

4. The spandex spinning oil can be stored in spandex cakes for a long time, and the unwinding tension is stable and smooth.

Detailed Description

The invention relates to a preparation method and a using method of an oiling agent for spandex spinning. Although mineral oil, organic silicone oil, synthetic ester, polyoxyethylene fatty acid ester, modified silicone oil, anti-blocking agent and antistatic agent in the spandex spinning finish are common chemical raw materials, the proportion of the spandex spinning finish produced by organic combination is the key point of the invention protection.

For better illustration of the mixing ratio of the present invention, the following three spandex spinning finishes in parts by weight are given as reference.

1) Mineral oil 10, organic silicone oil 30, trimethylolpropane oleate 5, castor oil polyoxyethylene ester 20, polyether modified silicone oil 5, erucamide 1 and isomeric dodecyl polyoxyethylene ether 1.

2) Mineral oil 40, organic silicone oil 5, [ isooctyl sebacate + trimethylolpropane oleate ]10, [ polyoxyethylene castor oil + polyoxyethylene oleate ]10, amino-modified silicone oil 10, oleamide 5, [ isodecyl alcohol polyoxyethylene ether + isotridecyl alcohol polyoxyethylene ether ] 2.

3) Mineral oil 25, silicone oil 15, [ trimethylolpropane oleate + pentaerythritol oleate + sorbitan oleate ]8, [ lauric acid polyoxyethylene monoester + lauric acid polyoxyethylene diester + castor oil polyoxyethylene ester ]15, hydroxyl modified silicone oil 7, [ oleamide + erucamide ]3, [ isotridecanol polyoxyethylene ether + phosphate potassium salt ] 2.

The three proportions are not the optimal proportion, the prepared spandex spinning oil agent is generally colorless and transparent, and all proportions, combination modes and use modes according to the technical scheme are within the protection scope of the invention.

Note that: the oil agent for spandex spinning is only suitable for dry spandex spinning or melt spandex spinning, and is not suitable for wet spandex spinning. The oil applying amount of the spandex spinning oil agent used in every hundred kilograms of spandex spinning in dry spandex spinning or melt spandex spinning is controlled to be 5-7 kilograms, and preferably not more than 7 kilograms is recommended. Oiling with spandex spinning oil agent is carried out by using a roller oiling mode or an oil nozzle oiling mode.

In the spandex spinning finish of the present invention:

the mineral oil used as the basic component of the smoothing agent can effectively reduce the friction coefficient of the spandex yarn.

The silicone oil is excellent in smoothness and heat resistance, and can reduce the surface tension of a spandex spinning finish.

The synthetic ester has excellent smoothness and can also adjust the dynamic and static friction coefficients of the spandex yarns.

The fatty acid polyvinyl ester has certain emulsifying property, can increase the softness and the antistatic effect of the spandex filament, has good bundling property, and ensures that the spandex filament tube is well formed.

The modified silicone oil and the anti-blocking agent can play a role in preventing blocking, particularly can still play a role in preventing blocking under the condition that the storage period of the spandex yarn is longer, reduce unwinding tension, and provide powerful guarantee for the smooth proceeding of subsequent production.

The antistatic agent can play a role in eliminating static electricity, and can increase the rapid permeation of the oil agent for spandex spinning on spandex yarns, thereby ensuring the uniformity of the oil agent for spandex spinning on the spandex yarns.

In conclusion, the oiling agent for spandex spinning has excellent smoothness, bundling property and antistatic property, thereby not only ensuring smooth spinning of spandex, but also providing quality guarantee for subsequent use, particularly uniform unwinding.