CN-122012161-A - Seamless textile machinery lubricating oil and preparation method thereof

Abstract

The application belongs to the technical field of lubricating oil agents, and particularly relates to a seamless textile machinery lubricating oil agent and a preparation method thereof. The alkyl phosphate dinonyl diphenylamine salt is used as an antiwear agent in the lubricating oil agent for the seamless textile machinery, has the functions of an extreme pressure agent and an antifriction agent, and has good antifriction performance. The anti-wear agent increases hydrophobicity by introducing long-chain hydrophobic alkyl, and the double oleoyl and nonyldiphenylamine also endow the anti-wear agent with excellent oil solubility, so that the anti-wear agent is not easy to separate out in a white oil system, and has higher compatibility in the system. Meanwhile, the extreme pressure performance and antifriction property of the product are endowed, and abrasion of knitting needles in the circulation process is greatly reduced. After the lubricating performance is improved, friction among knitting needles is greatly reduced, and mechanical temperature rise is reduced. The excellent lubricating effect also reduces the generation of free iron ions, slows down the aging of the oil product, and ensures that the oil product has stable performance in the circulating process.

Inventors

• KONG YINAN
• LU XIAOLI
• FANG MINGJIE
• JIN XIANHUA

Assignees

• 浙江传化化学品有限公司

Dates

Publication Date

20260512

Application Date

20260109

Claims (9)

1. 1. The seamless textile machinery lubricating oil is characterized by comprising, by weight, 89-96 parts of base oil, 1.5-2.5 parts of antiwear agent, 0.4-0.6 part of antirust agent, 0.3-0.6 part of antioxidant, 2-7 parts of emulsifying agent and 0.1-0.2 part of dispersing agent; Wherein the antiwear agent is alkyl phosphate dinonyl diphenylamine salt, and the alkyl phosphate dinonyl diphenylamine salt has a structure shown in formula (I): first, the first is In the formula (I), R is C n H 2n+1 or C n H 2n-1 , and n is an integer of 10-20.
2. 2. The lubricant according to claim 1, wherein the process for producing the alkyl phosphate dinonyl diphenylamine salt of the structure represented by the formula (one) comprises the steps of: (1) Taking alkyl alcohol and phosphorus pentoxide to react under inert atmosphere, and preparing an alkyl phosphate mixture; (2) And slowly adding the alkyl phosphate mixture into dinonyl diphenylamine solution in an organic solvent, and introducing dry nitrogen to purge and remove water in the reaction process to obtain transparent uniform dark liquid, namely alkyl phosphate dinonyl diphenylamine salt.
3. 3. The lubricant of claim 1, wherein the base oil is a group II mineral oil.
4. 4. The lubricant according to claim 1, wherein the rust inhibitor is a heterocyclic derivative.
5. 5. The lubricating oil agent according to claim 4, wherein the rust inhibitor is one or more of dodecenyl succinic acid, a heterocyclic derivative, a thiadiazole derivative, a benzotriazole derivative, and dodecenyl succinic acid half ester.
6. 6. The lubricant of claim 1, wherein the antioxidant is one or more of a semi-hindered phenolic antioxidant, di-t-butyl-p-cresol, irganox L135 phenol, trisnonylphenyl phosphite, alkyldiphenylamine, and diphenylisooctyl phosphite.
7. 7. The lubricant according to claim 1, wherein the emulsifier is one or more of a fatty alcohol polyoxyethylene polyoxypropylene ether, a fatty alcohol polyoxyethylene ether, a sorbitan fatty acid ester, and an alkoxylated fatty alcohol.
8. 8. The lubricant of claim 1, wherein the dispersant is one or more of bis/polysuccinimide, polyisobutylene succinimide, polyisobutylene succinate, and polymethacrylate.
9. 9. A method for preparing a seamless textile machinery lubricant according to any one of claims 1 to 8, comprising the steps of: Sequentially adding the components into a stirring kettle according to the formula amount, starting a stirring paddle, and stirring for 30 minutes or more to obtain the seamless textile machinery lubricating oil.

Description

Seamless textile machinery lubricating oil and preparation method thereof Technical Field The application belongs to the technical field of lubricating oil agents, and particularly relates to a seamless textile machinery lubricating oil agent and a preparation method thereof. Background The knitting lubricating oil is mainly applied to knitting production equipment in the textile industry, and currently common knitting oil application equipment mainly comprises a circular knitting machine, a flat knitting machine, a sock knitting machine, a seamless underwear knitting machine and a small circular knitting machine. Compared with the lowest end in the field of small circular knitting machines, the small circular knitting machines have more internal pins and lower production equipment requirements, and secondly, the large circular knitting machines and flat knitting machines have higher equipment localization substitution rate and higher internal pin proportion in recent years, the high-end products of the stocking machines and the seamless underwear machines occupy larger area, and more products are export European and American and Japanese and Korean orders and have higher equipment requirements and product positioning requirements. The seamless underwear machine is a special weaving machine for manufacturing high-end knitting needle products, and the manufactured products have few seams, no elastic bands and labels and high wearing comfort. Seamless undergarment knitting techniques exhibit their unique advantages over traditional knitting processes. The technology not only obviously shortens the process flow and reduces the labor cost, but also effectively reduces the waste of raw materials through a one-step molding mode. In addition, the technology has excellent product flexibility, and three-dimensional (3D) organization can be woven, and the flexible organization changes so that the products are more diversified, and the ever-increasing personalized demands on the market are met. The working environment and the part characteristics of the seamless underwear machine have extremely high requirements on the suitability of the knitting needle oil of the seamless underwear machine. Different from the disposable consumption type oiling system of traditional big circular engine oil, after lubricating oil in underwear machine equipment flows through lubricated position, flows back to the tank filler through the one deck filter screen, should cross the filter screen and can only filter batting class impurity, can't filter fine impurity such as fatlute, and the periodic make-up oil agent or the periodic replacement oil agent in the oil tank during the use, oil agent is longer than traditional circular engine knitting needle oil life cycle. Therefore, the equipment requires the oil agent to be recycled for a long time and still can maintain the normal lubrication of the machinery. The seamless underwear machine has high precision, and the lubricant is required to have proper viscosity, so that the lubricant can quickly permeate into a tiny gap of an element, and the operation of the machine is not influenced by excessive thickening. The oil agent also has good rust and corrosion resistance, has good compatibility with various materials of the machine, and otherwise can cause the problems of corrosion, damage and the like of parts. If the performance of the oil agent is poor, a black oil needle phenomenon is easy to generate. The appearance quality of the product is seriously affected, and the qualification rate of the product is reduced. In addition, the machine has high running speed, high temperature rise and increased friction force in the running process, so that the energy consumption is greatly increased, which is extremely unfavorable for the production cost control of enterprises. Therefore, the excellent knitting needle oil for the seamless underwear machine can meet the mechanical operation requirement and simultaneously reduce the mechanical energy consumption. Conventional seamless undergarment engine oil is formulated from refined mineral base oil and various high efficiency additives and surfactants. The oil used for the seamless underwear machine has long oil period and is circulating oil, and partial products have insufficient antifriction performance and insufficient oxidation resistance, so that the color of the oiling agent changes obviously after circulation, the lubricating performance drops rapidly, and continuous high-efficiency performance cannot be provided. In addition, in the actual use process, the rotating speed of mechanical equipment is fast, the temperature rise is fast, the wear resistance, rust resistance and consumed antioxidant performance are continuously weakened in the circulation, the temperature rise of a machine is further increased, the running resistance of the machine is increased, and the energy consumption of enterprises is increased. Disclosure of Invention Aiming at