Search

CN-122013373-A - Polyester FDY oiling agent with uniform dyeing and preparation method and application thereof

CN122013373ACN 122013373 ACN122013373 ACN 122013373ACN-122013373-A

Abstract

The application relates to the technical field of chemical materials, and provides a polyester FDY oiling agent with uniform dyeing, and a preparation method and application thereof. The FDY oiling agent comprises an oil phase and a water phase which are mutually independent, wherein the oil phase comprises, by weight, 60-90% of base oil, 5-25% of an emulsifying system, 0.05-5% of a dispersing component and 0.01-2% of an auxiliary agent based on the total mass of the oil phase, and the water phase comprises, by weight, 0.1-20% of a complexing component, 0.01-2% of a pH regulator and the balance of water based on the total mass of the water phase. The FDY oiling agent can effectively reduce the phenomena of chromatic aberration, streaks and the like in the dyeing process, and improve the dyeing consistency.

Inventors

  • ZHU JIANCHENG
  • CAI MINJIE
  • CHEN XIAOQIN
  • YANG ZHIMING
  • Fang Feiyang
  • YU WENFANG
  • LUO PENG

Assignees

  • 浙江恒翔新材料有限公司

Dates

Publication Date
20260512
Application Date
20260310

Claims (10)

  1. 1. The polyester FDY oiling agent is characterized by comprising an oil phase and a water phase which are mutually independent; The oil phase comprises the following components in percentage by weight based on the total mass of the oil phase: 60-90% of base oil, 5-25% Of an emulsifying system, 0.05-5% Of a dispersing component, 0.01-2% Of auxiliary agent; the aqueous phase comprises the following components in percentage by weight based on the total mass of the aqueous phase: 0.1-20% of complexing component, 0.01-2% Of pH regulator, And the balance of water.
  2. 2. The FDY finish according to claim 1, wherein, The base oil comprises one or more of fatty acid ester, polyether ester, and/or The dispersing component comprises one or more of polyether dispersant, polycarboxylate dispersant, and/or The auxiliary agent comprises one or more of defoamer, preservative and antioxidant.
  3. 3. The FDY finish according to claim 1, wherein said emulsifying system comprises a nonionic surfactant and an anionic surfactant; Wherein the nonionic surfactant comprises one or more of fatty alcohol polyoxyethylene ether and polyoxyethylene-polyoxypropylene block polyether; the anionic surfactant comprises one or more of phosphate, alkyl sulfonate and alkyl sulfate.
  4. 4. The FDY finish according to claim 1, wherein, The complexing component comprises one or more of phosphonate complexing agent and amino carboxylate complexing agent; wherein the phosphonate complexing agent comprises one or more of hydroxyethylidene diphosphonic acid, aminotrimethylene phosphonic acid and diethylenetriamine pentamethylene phosphonic acid, and/or The amino carboxylate complexing agent comprises one or more of ethylenediamine tetraacetate, glutamic acid diacetate and methylglycine diacetate.
  5. 5. The FDY finish according to claim 1, wherein said pH modifier comprises one or more of sodium hydroxide, potassium hydroxide, ammonia, sodium carbonate, sodium bicarbonate, citric acid, acetic acid, phosphate buffer system.
  6. 6. A method for preparing the FDY oil according to any one of claims 1 to 5, comprising the steps of: Preparing the oil phase, namely heating the base oil and performing first stirring treatment, and then adding an emulsifying system, a dispersing component and an auxiliary agent to perform second stirring treatment to obtain the oil phase; And (3) preparing the water phase, namely dissolving the complexing component in water, and adding the pH regulator to perform third stirring treatment to obtain the water phase.
  7. 7. The preparation method according to claim 6, wherein the preparation of the oil phase specifically comprises: heating the base oil at 40-60 ℃ and performing the first stirring treatment at 300-800rpm for 15-45min to obtain heating oil; In the process of carrying out the second stirring treatment for 15-60min at 500-1200rpm, sequentially adding the emulsifying system, the dispersing component and the auxiliary agent into the heating oil to obtain an oil phase mixture; and (3) performing first filtering treatment with the precision of 1-10 mu m on the oil phase mixture to obtain the oil phase.
  8. 8. The process according to claim 6, wherein, in the preparation of the aqueous phase, The rotation speed of the third stirring treatment is 200-1200rpm, and the time is 5-60min; the pH regulator regulates the pH value of the water phase to 6.0-9.0.
  9. 9. The method according to any one of claims 6 to 8, wherein in the preparation of the aqueous phase, the third stirring treatment is further followed by a second filtration treatment of the aqueous phase, the second filtration treatment having an accuracy of 1 to 10. Mu.m.
  10. 10. The use of the FDY oiling agent according to any one of claims 1 to 5, wherein the oil phase is added into additional water for stirring and dispersing treatment, and then the water phase is added for stirring and mixing treatment, so as to obtain the working emulsion for oiling the terylene FDY.

Description

Polyester FDY oiling agent with uniform dyeing and preparation method and application thereof Technical Field The invention relates to the technical field of chemical materials, in particular to a polyester FDY oiling agent with uniform dyeing, a preparation method and application thereof. Background Fully drawn polyester (FDY) is widely used in weaving, dyeing and finishing processes. FDY finished products are usually subjected to pretreatment, dyeing, fixation, finishing and other steps in the dyeing process, wherein the surface state of the fiber has a significant influence on the wetting, diffusion and dyeing kinetics of the dye liquor. In particular, the spin finish applied during the spinning and winding process forms an oil film on the surface of the fiber, and the composition and distribution uniformity of the oil film directly influence the wetting and mass transfer process of the dye liquor on the fiber during the subsequent dyeing. When the oil film is unevenly covered, the local oil film is too thick or the oil film composition is different, the permeation rate and the exhaustion degree of the dye liquor between different fiber sections or different fiber bundles are inconsistent, and thus the uneven dyeing phenomena such as chromatic aberration, streaks, uneven shade and the like are represented. The existing FDY oiling process generally adopts a mode of oiling after oil agent and water are prepared into working emulsion. The stability of the working emulsion and the state of emulsified particles can influence the spreading and depositing behavior of the oiling agent on the fiber surface, when the emulsion stability is insufficient, flocculation, local demulsification or fluctuation of the particle size distribution of emulsified particles can occur, so that the concentration of active ingredients and the depositing amount change in unit time, and further fluctuation of the oiling amount and uneven oil film are caused; in addition, when the water quality of the additional water in different production sites is different, the state of the working emulsion in the preparation and use processes is easier to fluctuate, so that the oiling consistency is further reduced, and the occurrence probability of subsequent uneven dyeing is increased. Therefore, there is a need for a polyester FDY oiling agent with uniform dyeing, and a preparation method and application thereof, so as to reduce risks of dyeing defects such as chromatic aberration and banding and improve product consistency. Disclosure of Invention One of the problems to be solved by the invention is how to provide a polyester FDY oiling agent with uniform dyeing. One of the problems to be solved by the invention is how to provide a preparation method of polyester FDY oiling agent with uniform dyeing. One of the problems to be solved by the invention is how to provide an application of polyester FDY oiling agent with uniform dyeing. In order to solve at least one of the problems, the invention provides a polyester FDY oiling agent with uniform dyeing, wherein the FDY oiling agent comprises an oil phase and a water phase which are mutually independent; The oil phase comprises 60-90% of base oil, 5-25% of emulsifying system, 0.05-5% of dispersing component and 0.01-2% of auxiliary agent by weight percent based on the total mass of the oil phase; The water phase comprises 0.1-20% of complexing component, 0.01-2% of pH regulator and the balance of water by weight percent based on the total mass of the water phase. In the technical scheme, the base oil comprises one or more of fatty acid ester, polyether and polyether ester, and/or the dispersing component comprises one or more of polyether dispersing agent and polycarboxylate dispersing agent, and/or the auxiliary agent comprises one or more of defoamer, preservative and antioxidant. In the technical scheme, the emulsifying system comprises a nonionic surfactant and an anionic surfactant, wherein the nonionic surfactant comprises one or more of fatty alcohol polyoxyethylene ether and polyoxyethylene-polyoxypropylene block polyether, and the anionic surfactant comprises one or more of phosphate, alkyl sulfonate and alkyl sulfate. In the technical scheme, the complexing component comprises one or more of phosphonate complexing agent and amino carboxylate complexing agent, wherein the phosphonate complexing agent comprises one or more of hydroxyethylidene diphosphonic acid, aminotrimethylene phosphonic acid and diethylenetriamine penta-methylene phosphonic acid, and/or the amino carboxylate complexing agent comprises one or more of ethylenediamine tetraacetate, glutamic acid diacetate and methylglycine diacetate. In the above technical scheme, the pH regulator comprises one or more of sodium hydroxide, potassium hydroxide, ammonia water, sodium carbonate, sodium bicarbonate, citric acid, acetic acid and phosphate buffer system. The invention also provides a preparation method of the polyester FDY oil