Natural product derivative-based degreaser for polyester fabric and preparation method of natural product derivative-based degreaser

Abstract

The invention relates to a natural product derivative-based degreasing agent for polyester fabrics and a preparation method thereof. Wherein the degreasing agent is prepared from the following components in parts by mass: 30 to 50 parts of cinnamyl alcohol polyoxyethylene ether cinnamate, 15 to 25 parts of terpilenol polyoxyethylene ether, 5 to 10 parts of trisodium methylglycine diacetate and 20 to 40 parts of deionized water. The natural product derivative-based degreasing agent for the polyester fabric is suitable for an open-width continuous refining and degreasing process of the polyester fabric, has excellent emulsification, dispersion and back-tack prevention properties on a polyester spinning oil agent, can effectively improve the pretreatment process efficiency of the polyester fabric, and is energy-saving and emission-reducing.

Description

Technical Field

[0001] The invention relates to a degreasing agent based on a natural product derivative, in particular to a degreasing agent based on a natural product derivative for polyester fabric and a preparation method thereof. Background Art

[0002] The continuous friction of polyester fibers during the spinning and weaving process can easily generate a large amount of static electricity, which affects textile processing. In order to eliminate the static electricity generated by fiber friction and reduce the breakage rate, it is necessary to add appropriate oils. However, the addition of oils is not conducive to the subsequent dyeing and finishing process of the fiber, and pre-treatment refining and degreasing processes are required to remove it. In actual production, dyeing factories mostly use open-width continuous refining and degreasing processes to improve production efficiency. The process is characterized by fast flow, short time and long working fluid replacement time. This requires the degreasing agent to quickly emulsify the oil on the fiber in a short time and evenly disperse it in the working fluid. At the same time, it is necessary to prevent the oil in the working fluid from condensing and causing back staining.

[0003] In order to improve the rapid degreasing and emulsifying properties of additives, most of the currently disclosed patents add organic solvent components. However, organic solvents that are effective for spinning oils, such as tetrachloroethylene, are somewhat polluting to the environment.

[0004] The Chinese invention patent with publication number CN109370795B and titled "Degreasing agent for continuous processing of polyester / ammonia and nylon / ammonia blended knitted fabrics and its preparation method" discloses a degreasing agent for continuous processing prepared from polyoxyethylene nonionic surfactants, chelating agents, fluorocarbon surfactants, organic fluorine finishing agents, organic solvents, etc. The degreasing agent has good oil removal, emulsification and dispersibility, anti-re-staining and rapid penetration, but the organic fluorine and organic solvents in its components are not good for the environment.

[0005] The Chinese invention patent with publication number CN202310015705.X ​​and titled "A bio-based polyester deoiler, its preparation method and application" discloses a bio-based polyester deoiler prepared from tall oil modified surfactants, alkyl glucosides, cardanol polyoxyethylene ether, palm oil fatty acid sodium salt, natural oil sulfonated oil, tetrasodium glutamate diacetate, citric acid, magnesium chloride, etc. The deoiler has excellent acid and alkali resistance, good wetting, dispersion and emulsification properties, strong decontamination and oil removal, etc. However, the deoiler is only suitable for polyester deoiling and dyeing in the same bath process, and is not suitable for the open-width continuous refining and deoiling process of polyester. Summary of the invention

[0006] In order to solve the above technical problems, the object of the present invention is to provide a degreasing agent based on natural product derivatives for polyester fabrics and a preparation method thereof.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions: A degreasing agent based on natural product derivatives for polyester fabrics comprises the following formula components by weight: 30-50 parts of cinnamyl alcohol polyoxyethylene ether cinnamate, 15-25 parts of pine alcohol polyoxyethylene ether, 5-10 parts of methylglycine diacetate trisodium and 20-40 parts of deionized water.

[0008] Preferably, the preparation of the cinnamyl alcohol polyoxyethylene ether cinnamate includes the following synthesis method and steps, which are proportioned by mass: Add 60-70 parts of cinnamyl alcohol polyoxyethylene ether, 30-40 parts of cinnamic acid and 0.5-1 part of p-toluenesulfonic acid into a reaction vessel, raise the temperature to 120°C-130°C, start vacuum with a vacuum degree of -0.085-0.095 MPa, keep the reaction at 120°C-130°C for 2-3 hours, then cool to below 50°C, close the vacuum and discharge the material.

[0009] The reaction formula is as follows:

[0010] Where n=12~14.

[0011] Preferably, the average number of polyoxyethylene repeating units in the molecular structure of the cinnamyl alcohol polyoxyethylene ether is 12-14; the average number of polyoxyethylene repeating units in the molecular structure of the pinene alcohol polyoxyethylene ether is 7-9.

[0012] Preferably, the degreasing agent is used in the pre-treatment process of polyester fabric.

[0013] Due to the application of the above technical solution, the present invention has the following advantages: In the degreasing agent component, cinnamyl alcohol polyoxyethylene ether, a derivative of natural plants, is used for esterification reaction with natural organic acid cinnamic acid to generate cinnamic acid polyoxyethylene ether cinnamate. The double benzene ring structure improves its affinity for polyester fibers, and the structure has excellent emulsification, dispersion and anti-re-sticking properties for polyester spinning oils; pine oil polyoxyethylene ether not only has good compatibility with spinning oils, but also has certain wetting and permeability, so that the auxiliary agent can wet and penetrate the fibers in a very short time, which is helpful for the separation of the oil and the fibers; the addition of trisodium methylglycine diacetate significantly improves the chelating dispersibility of the system, effectively reduces the influence of metal ions and various impurities in the working fluid on the refining and degreasing process, prolongs the use time of the working fluid, and saves energy and reduces emissions. DETAILED DESCRIPTION

[0014] The present invention is further described in detail below in conjunction with specific embodiments. Example

[0015] According to the mass fraction of the degreasing agent component, 120g of cinnamyl alcohol polyoxyethylene ether with an average polyoxyethylene repeating unit number of 13, 60g of cinnamic acid and 1g of p-toluenesulfonic acid were put into a reaction container, the temperature was raised to 120°C, and the vacuum was turned on with a vacuum degree of -0.095MPa. After the reaction was kept warm for 3 hours, the temperature was lowered to below 50°C, the vacuum was turned off and the material was discharged to obtain cinnamyl alcohol polyoxyethylene ether cinnamate.

[0016] 80g of cinnamyl alcohol polyoxyethylene ether cinnamate, 30g of pine alcohol polyoxyethylene ether with an average polyoxyethylene repeating unit number of 7, 20g of methylglycine diacetate trisodium and 40g of deionized water are put into a reaction container, stirred evenly and then discharged to obtain a finished product, a degreasing agent based on natural product derivatives for polyester fabrics. Example

[0017] According to the mass fraction of the degreasing agent component, 120g of cinnamyl alcohol polyoxyethylene ether with an average polyoxyethylene repeating unit number of 13, 70g of cinnamic acid and 1g of p-toluenesulfonic acid were put into a reaction container, the temperature was raised to 120°C, and the vacuum was turned on with a vacuum degree of -0.095MPa. After the reaction was kept warm for 3 hours, the temperature was lowered to below 50°C, the vacuum was turned off and the material was discharged to obtain cinnamyl alcohol polyoxyethylene ether cinnamate.

[0018] 80g of cinnamyl alcohol polyoxyethylene ether cinnamate, 40g of pine alcohol polyoxyethylene ether with an average polyoxyethylene repeating unit number of 8, 20g of methylglycine diacetate trisodium and 40g of deionized water are put into a reaction container, stirred evenly and then discharged to obtain a finished product, a degreasing agent based on natural product derivatives for polyester fabrics. Example

[0019] According to the mass fraction of the degreasing agent component, 120g of cinnamyl alcohol polyoxyethylene ether with an average polyoxyethylene repeating unit number of 13, 80g of cinnamic acid and 1g of p-toluenesulfonic acid were put into a reaction container, the temperature was raised to 120°C, and the vacuum was turned on with a vacuum degree of -0.095MPa. After the reaction was kept warm for 3 hours, the temperature was lowered to below 50°C, the vacuum was turned off and the material was discharged to obtain cinnamyl alcohol polyoxyethylene ether cinnamate.

[0020] 80g of cinnamyl alcohol polyoxyethylene ether cinnamate, 50g of pine alcohol polyoxyethylene ether with an average polyoxyethylene repeating unit number of 9, 20g of methylglycine diacetate trisodium and 40g of deionized water are put into a reaction container, stirred evenly and then discharged to obtain a finished product, a degreasing agent based on natural product derivatives for polyester fabrics. 1. Fabrics and auxiliaries Fabric: Polyester knitted fabric (75D pure polyester double-sided fabric) Domestic M: High-efficiency scouring and degreasing agent M-1185 (Hangzhou Meigao Huayi Chemical Co., Ltd.) Imported F: High-efficiency degreasing agent FORYL HY-E (Kekai Fine Chemicals (Shanghai) Co., Ltd.) (II) Application process 1. Preparation of test oil: first mix 10# white mineral oil, gear oil and black engine oil in a ratio of 1:1:1 to make the test oil.

[0021] 2. Oilcloth production: Cut 5g polyester knitted fabric (60-count double-sided fabric), drop 0.1 ml of test oil agent on the center of the fabric, wait for the oil to wet, and use a high-temperature setting machine at 175℃ for 45 seconds.

[0022] 3. Degreasing liquid ratio: Degreasing agent 8g / L Liquid caustic soda (32% NaOH) 10g / L Process flow: After the working liquid is heated to 100℃, put it into oilcloth, keep it warm for 2 minutes, then wash and dry it.

[0023] (III) Test indicators and methods 1. Oil removal: With reference to GB / T 251-2008 “Grey Scale for Assessing Staining in Textiles for Colour Fastness Tests”, the degree of oil removal is judged by human eyes, and the grey scale for staining is used for comparative rating. The oil removal effect is divided into 5 levels, with 5 being the best and 1 being the worst.

[0024] 2. Emulsification: Prepare the degreasing agent into a 1g / L aqueous solution, take 30mL of the aqueous solution and 30mL of the special oil in a 100mL tall beaker, homogenize for 60s at a speed of 1000r / min with a homogenizer, and place it in a 100mL measuring cylinder, and record the time required for the lower layer to separate into 5mL of water phase. The longer the time, the stronger the emulsification power.

[0025] 3. Permeability: Prepare 10g / L degreasing agent into 200mL working solution, test it with the standard canvas method, and record the time it takes for the canvas to sink to the bottom.

[0026] Application Effect Table 1 Application test results

[0027] Experimental Results From the above data, it can be seen that the degreasing, emulsifying and permeability of each embodiment of the present invention in polyester fabric are better than those of the market sample control; finally, it should be pointed out that the above embodiments are only more representative examples of the present invention. Obviously, the technical solution of the present invention is not limited to the above embodiments, and there can be many variations. All variations directly derived or associated from the content disclosed in the present invention should be considered as the protection scope of the present invention.

Claims

1. A degreasing agent based on natural product derivatives for polyester fabrics, characterized in that: The formula composition by mass is: 30-50 parts of cinnamic alcohol polyoxyethylene ether cinnamate, 15-25 parts of pine alcohol polyoxyethylene ether, 5-10 parts of methylglycine diacetate trisodium and 20-40 parts of deionized water.

2. The degreasing agent based on natural product derivatives for polyester fabric according to claim 1, characterized in that The preparation of the cinnamyl alcohol polyoxyethylene ether cinnamate includes the following synthesis method and steps, which are proportioned by mass: Add 60-70 parts of cinnamyl alcohol polyoxyethylene ether, 30-40 parts of cinnamic acid and 0.5-1 part of p-toluenesulfonic acid into a reaction vessel, raise the temperature to 120°C-130°C, start vacuum with a vacuum degree of -0.085-0.095 MPa, keep the reaction at 120°C-130°C for 2-3 hours, then cool to below 50°C, close the vacuum and discharge the material.

3. The degreasing agent based on natural product derivatives for polyester fabric according to claim 1, characterized in that The average number of polyoxyethylene repeating units in the molecular structure of the cinnamyl alcohol polyoxyethylene ether is 12-14, and the average number of polyoxyethylene repeating units in the molecular structure of the pinene alcohol polyoxyethylene ether is 7-9.

4. The degreasing agent based on natural product derivatives for polyester fabric according to claim 1, characterized in that The degreasing agent is applied to the pre-treatment process of polyester fabric.

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