Dacron level-dyeing repairing agent and preparation method thereof

Abstract

The invention discloses a terylene level-dyeing repairing agent and a preparation method thereof. The terylene level-dyeing repairing agent is prepared from the following raw materials in parts by weight: 10-60 parts of benzyl benzoate, 5-30 parts of ethylene glycol, 10-40 parts of isodecanol polyoxyethylene ether and 5-15 parts of secondary alkyl sodium sulfonate. The invention has the following beneficial effects: the dye can better permeate into fabrics, can obtain excellent high-temperature dispersion performance, retarding performance and migration performance, and has less influence on colored light.

Description

Technical Field

[0001] The invention relates to the technical field of chemical industry, in particular to a polyester leveling repair agent and a preparation method thereof. Background Art

[0002] Polyester fabric is one of the most widely used textile fabrics, and its advantages are very obvious. For example, polyester fabric has strong strength and elastic recovery ability, and is very wear-resistant, so it is very durable. For example, polyester fabric dries quickly after washing, and its wet strength hardly decreases or deforms, and it has very good wash-and-wear performance. For example, the chemical properties of polyester fiber are very stable, and it not only has very good heat resistance and light resistance, but also has good corrosion resistance. It is not greatly damaged by acid and alkali, and it is not afraid of mold or insects.

[0003] However, the high chemical stability of polyester fiber has both advantages and disadvantages. The high chemical stability of polyester fiber also means that dyes are not easy to dye onto polyester fibers. In fact, in the dyeing and finishing process of polyester fabrics, due to the influence of various factors such as dye matching, water quality, pH value, residual oil, etc., it is very easy to have uneven dyeing.

[0004] There are many ways to improve the dyeing uniformity of polyester fabrics, such as controlling the heating rate, selecting suitable dyes, increasing the dyeing bath ratio, and speeding up the cloth movement speed, but these solutions are often limited by dyes, equipment, etc.; the simplest and most practical way to solve the dyeing uniformity is to add appropriate leveling agents to help the dyes reach the inside of the fibers evenly and effectively and dye onto the polyester fibers to obtain a more uniform dyeing effect, but the existing leveling agents have certain usage defects, have a relatively large impact on the environment, and cannot meet the needs of long-term development of enterprises. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a polyester leveling repair agent, which is composed of the following raw materials in parts by weight: 10-60 parts of benzyl benzoate, 5-30 parts of ethylene glycol, 10-40 parts of isomeric decanol polyoxyethylene ether, and 5-15 parts of secondary alkyl sodium sulfonate.

[0006] As a further supplement to the technical solution, the benzyl benzoate is a plasticizer.

[0007] As a further supplement to the technical solution, the ethylene glycol is a solvent.

[0008] As a further supplement to the technical solution, the isomeric decanol polyoxyethylene ether is a nonionic surfactant.

[0009] As a further supplement to the technical solution, the sodium secondary alkyl sulfonate is an anionic surfactant.

[0010] As a further supplement to the technical solution, the synthesis of the isomeric decanol polyoxyethylene ether is prepared by the addition reaction of isomeric decanol and ethylene oxide.

[0011] As a further supplement to the technical solution, the sodium secondary alkyl sulfonate is prepared by addition reaction of straight-chain olefins and NaHSO3 under the action of a catalyst.

[0012] A method for preparing a polyester leveling repair agent comprises the following steps: 10-60 parts of benzyl benzoate, 5-30 parts of ethylene glycol, 10-40 parts of isomeric decanol polyoxyethylene ether, and 5-15 parts of sodium secondary alkyl sulfonate are added into a reaction container, mixed evenly, and then a defoamer is added and stirred evenly to prepare the leveling repair agent.

[0013] Its beneficial effects are that it can better penetrate into the fabric, can obtain excellent high-temperature dispersion performance, slow dyeing performance, and migration performance, and has little effect on the color light. DETAILED DESCRIPTION

[0014] In order to make the technical solution more clear to those skilled in the art, the technical solution of the present invention will be described in detail below:

[0015] A polyester leveling repair agent is composed of the following raw materials in parts by weight: 10-60 parts of benzyl benzoate, 5-30 parts of ethylene glycol, 10-40 parts of isomeric decanol polyoxyethylene ether, and 5-15 parts of secondary alkyl sodium sulfonate.

[0016] Among them, benzyl benzoate is a plasticizer.

[0017] Among them, ethylene glycol is the solvent.

[0018] Among them, isomeric decanol polyoxyethylene ether is a nonionic surfactant, and the emulsifying ability of isomeric alcohol polyoxyethylene ether is stronger than that of straight chain.

[0019] Among them, sodium secondary alkyl sulfonate is an anionic surfactant.

[0020] Among them, the synthesis of isomeric decanol polyoxyethylene ether is prepared by the addition reaction of isomeric decanol and ethylene oxide.

[0021]

[0022] Among them, the synthesis of sodium secondary alkyl sulfonate is usually carried out by sulfoxidation method, but the reaction contains SO2, which will cause pollution. Sodium secondary alkyl sulfonate is prepared by addition reaction of straight-chain olefins and NaHSO3 under the action of catalyst.

[0023]

[0024] The present invention is further described below in conjunction with the examples. However, the present invention is not limited to the following examples. The implementation conditions used in the examples can be further adjusted according to the different requirements of specific use, and the implementation conditions not specified are conventional conditions in the industry. The technical features involved in each embodiment of the present invention can be combined with each other as long as they do not conflict with each other.

[0025] The experimental methods in the following examples are conventional methods unless otherwise specified; the experimental raw materials used can be commercially purchased and / or prepared by known means unless otherwise specified, and meet the requirements of standard chemical products unless otherwise specified.

[0026] In the experimental methods in the following examples, the parts of each substance are all parts by weight.

[0027] Example 1

[0028] This embodiment provides a polyester leveling repair agent, which is prepared by the following method:

[0029] In the reactor, add 50 parts of benzyl benzoate and 20 parts of ethylene glycol, start stirring, raise the temperature to 40-50°C, turn off the heating, and keep warm for 60 minutes. Then, add 35 parts of isomeric decanol polyoxyethylene ether and stir for 15 minutes, then add 10 parts of secondary alkyl sodium sulfonate to the reactor and stir for 45-60 minutes until it is completely dissolved and uniformly becomes a yellow transparent liquid. Finally, add 0.55 parts (1‰ of the total monomer amount) of CD-1116M defoamer to the reactor, take samples for testing, filter, discharge, and package to obtain a leveling repair agent.

[0030] Example 2

[0031] This embodiment provides a polyester leveling repair agent, which is prepared by the following method:

[0032] In the reactor, add 40 parts of benzyl benzoate and 30 parts of ethylene glycol, start stirring, raise the temperature to 40-50°C, turn off the heating, and keep warm for 60 minutes. Then, add 30 parts of isomeric decanol polyoxyethylene ether and stir for 15 minutes, then add 10 parts of secondary alkyl sodium sulfonate to the reactor and stir for 45-60 minutes until it is completely dissolved and uniformly becomes a yellow transparent liquid. Finally, add 0.55 parts (1‰ of the total monomer amount) of CD-1116M defoamer to the reactor, take samples for testing, filter, discharge, and package to obtain a leveling repair agent.

[0033] Example 3

[0034] This embodiment provides a polyester leveling repair agent, which is prepared by the following method:

[0035] In the reactor, add 55 parts of benzyl benzoate and 25 parts of ethylene glycol, start stirring, raise the temperature to 40-50°C, turn off the heating, and keep warm for 60 minutes. Then, add 25 parts of isomeric decanol polyoxyethylene ether and stir for 15 minutes, then add 15 parts of secondary alkyl sodium sulfonate to the reactor and stir for 45-60 minutes until it is completely dissolved and uniformly becomes a yellow transparent liquid. Finally, add 0.55 parts (1‰ of the total monomer amount) of CD-1116M defoamer to the reactor, take samples for testing, filter, discharge, and package to obtain a leveling repair agent.

[0036] Performance Testing

[0037] The polyester leveling repair agent of Examples 1 to 3 was used, and the comparative example was a commercially available polyester leveling agent competitor (purchased from Guangdong Demei Fine Chemical Group Co., Ltd., with a brand name of DM-2114N).

[0038] High temperature dispersibility: Adopt the method of HG / T 4261-2011 "Determination of high temperature dispersibility of textile dyeing and finishing auxiliaries - polyester leveling agent", divided into 1-5 grades, the higher the grade, the better the performance.

[0039] Slow dyeing performance: HG / T 4262-2011 "Determination of slow dyeing performance of textile dyeing and finishing auxiliaries and polyester leveling agents" is adopted. The greater the difference between the K / S value and the blank, the better the slow dyeing performance.

[0040] Migration performance: HG / T 4263-2011 "Determination of migration performance of textile dyeing and finishing auxiliaries and polyester leveling agents" is adopted. The higher the migration rate, the better the performance.

[0041] Decolorization: HG / T4436-2012 "Determination of decolorization of polyester leveling agents for textile dyeing and finishing auxiliaries" is used. The smaller the ΔE* value, the smaller the impact of the polyester leveling repair agent on the color light.

[0042] The specific test results are shown in Table 1

[0043] Table 1 Performance test results of various embodiments

[0044]

[0045] It can be seen from the data in Table 1 that the use of this patented technology can obtain excellent high-temperature dispersion performance, slow dyeing performance, and migration performance, and has little impact on color light.

[0046] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A polyester leveling repair agent, characterized in that: The invention is composed of the following raw materials in parts by weight: 10-60 parts of benzyl benzoate, 5-30 parts of ethylene glycol, 10-40 parts of isomeric decanol polyoxyethylene ether and 5-15 parts of secondary alkyl sodium sulfonate.

2. A polyester leveling repair agent according to claim 1, characterized in that: The benzyl benzoate is a plasticizer.

3. A polyester leveling repair agent according to claim 2, characterized in that: The ethylene glycol is a solvent.

4. A polyester leveling repair agent according to claim 1, characterized in that: The isomeric decanol polyoxyethylene ether is a nonionic surfactant.

5. A polyester leveling repair agent according to claim 1, characterized in that: The sodium secondary alkyl sulfonate is an anionic surfactant.

6. A polyester leveling repair agent according to claim 1, characterized in that: The isomeric decanol polyoxyethylene ether is synthesized by adding isomeric decanol and ethylene oxide.

7. A polyester leveling repair agent according to claim 1, characterized in that: The sodium secondary alkyl sulfonate is prepared by addition reaction of straight-chain olefin and NaHSO3 under the action of a catalyst.

8. The method for preparing a polyester leveling repair agent according to any one of claims 1 to 7, characterized in that: The following steps are involved: 10-60 parts of benzyl benzoate, 5-30 parts of ethylene glycol, 10-40 parts of isomeric decanol polyoxyethylene ether, and 5-15 parts of secondary alkyl sodium sulfonate are added into a reaction container and mixed evenly. Then, a defoamer is added and stirred evenly to obtain a leveling repair agent.

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