阅读说明：本技术 一种双季铵盐型酸性染料防沾污剂、防沾皂洗剂及其制备方法 (Double-quaternary ammonium salt type acid dye anti-staining agent, anti-staining soaping agent and preparation method thereof ) 是由 吴明华 王懿佳 王莉莉 余德游 彭冲 于 2020-12-14 设计创作，主要内容包括：本发明提供一种双季铵盐型酸性染料防沾污剂及由其制得的双季铵盐型酸性染料防沾皂洗剂,同时公开了上述防沾污剂及防沾皂洗剂的制备方法。上述制备方法包括：将脂肪胺聚氧乙烯醚加热,向其中添加(3-氯-2-羟丙基)三甲基氯化铵,随后将反应体系冷却,经后处理得所述防沾污剂,进一步与表面活性剂复配得到所述防沾皂洗剂。本发明通过季铵化试剂(3-氯-2-羟丙基)三甲基氯化铵将脂肪胺聚氧乙烯醚进行季铵化,制得具有双季铵盐结构的酸性染料防沾污剂,反应条件温和,工艺简单易控制,转化率高,适用于工业化生产；且原材料价格低廉,制备过程无需额外有机溶剂,后处理简单,制备成本低,安全无污染。(The invention provides a double quaternary ammonium salt type acid dye anti-staining agent and a double quaternary ammonium salt type acid dye anti-staining soaping agent prepared from the same, and also discloses a preparation method of the anti-staining agent and the anti-staining soaping agent. The preparation method comprises the following steps: heating fatty amine polyoxyethylene ether, adding (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride into the fatty amine polyoxyethylene ether, cooling a reaction system, carrying out post-treatment to obtain the anti-staining agent, and further compounding the anti-staining agent with a surfactant to obtain the anti-staining soaping agent. The fatty amine polyoxyethylene ether is quaternized by a quaternizing agent (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride to prepare the acid dye stain repellent with a biquaternary ammonium salt structure, the reaction condition is mild, the process is simple and easy to control, the conversion rate is high, and the method is suitable for industrial production; and the raw materials are low in price, no additional organic solvent is needed in the preparation process, the post-treatment is simple, the preparation cost is low, and the preparation method is safe and pollution-free.)

1. A double quaternary ammonium salt type acid dye anti-staining agent is characterized in that the chemical structural formula of the anti-staining agent is shown as formula I:

the formula I is shown in the specification, wherein m and n are integers, and m + n is 15-30.

2. A double quaternary ammonium salt type acid dye anti-staining soaping agent characterized by comprising the anti-staining agent of claim 1, an anionic surfactant and a nonionic surfactant.

3. The double quaternary ammonium salt type acid dye anti-staining soaping agent according to claim 2, wherein the anionic surfactant is sodium lauryl sulfate and the nonionic surfactant is peregal O-25.

4. The double quaternary ammonium salt type acid dye anti-staining soaping agent according to claim 2 or 3, wherein the components in weight percentage are as follows: 25-35% of a stain-proofing agent, 1-4% of an anionic surfactant, 15-30% of a nonionic surfactant and the balance of water.

5. A method for preparing the diquaternary acid dye stain blocker according to claim 1, comprising: heating fatty amine polyoxyethylene ether, adding (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride into the fatty amine polyoxyethylene ether, cooling a reaction system, and performing post-treatment to obtain the double quaternary ammonium salt type acid dye stain repellent.

6. The method for preparing a bis-quaternary ammonium salt type acid dye stain blocker according to claim 5, wherein the molar ratio of the fatty amine polyoxyethylene ether to the (3-chloro-2-hydroxypropyl) trimethylammonium chloride is 1: (1.5-2.25).

7. The method for preparing a bis-quaternary ammonium salt type acid dye stain blocker according to claim 5, wherein the (3-chloro-2-hydroxypropyl) trimethylammonium chloride is dripped into the fatty amine polyoxyethylene ether in the form of an aqueous solution at the temperature of 60-110 ℃ for 3-6 hours.

8. The method for preparing a bis-quaternary ammonium salt type acid dye stain blocker according to claim 5, wherein the fatty amine polyoxyethylene ether is 1815 or 1830.

9. The method for preparing the double quaternary ammonium salt type acid dye anti-staining soaping agent according to any one of claims 2 to 4, wherein the anti-staining agent, the anionic surfactant and the nonionic surfactant are compounded to obtain the double quaternary ammonium salt type acid dye anti-staining soaping agent.

Technical Field

The invention belongs to the technical field of synthesis of textile printing and dyeing auxiliaries, and particularly relates to a double quaternary ammonium salt type acid dye anti-staining agent, an anti-staining soaping agent and preparation methods thereof.

Background

The wool fiber is an important raw material in the textile industry, has the advantages of good elasticity, good heat retention, strong hygroscopicity and the like, and makes an important contribution to the development of textile economy in China. However, the staining phenomenon in the washing process after the wool fabric is dyed by the acid dye can cause the problems of white background, pattern color and light discoloration or color fastness reduction and the like, and the quality of the product is seriously influenced. In order to effectively improve the quality and market competitiveness of wool fabrics and reduce the consumption and emission of water for washing, people need to develop an acid dye anti-staining soaping agent with high-efficiency anti-staining performance, so that energy conservation and emission reduction are realized, and the economic benefit of enterprises is improved.

The anti-staining soaping agent consists of an anti-staining agent and a detergent. The prior commonly used acid dye anti-staining agents such as carboxymethyl cellulose, maleic anhydride-acrylic acid copolymer and the like have common anti-staining effect on acid dyes used for printing and dyeing wool fibers.

The fatty amine polyoxyethylene ether has better washing effect and anti-staining effect, in order to improve the anti-staining effect, the fatty amine polyoxyethylene ether is treated by a quaternizing agent commonly used in the prior art to use an acid dye anti-staining agent, and the molar weight of quaternary ammonium salt contained in unit mass of the obtained product is an important index for evaluating the anti-staining effect. However, the anti-staining agent in the prior art is usually of a mono-quaternary ammonium salt type, and the anti-staining effect has certain limitation. The preparation of the multi-quaternary ammonium salt type anti-staining agent usually requires multi-step reaction, and has complex process, severe reaction conditions, difficult process control and difficult industrial production; in addition, the preparation process requires additional use of other organic solvents, which makes the product difficult to process and increases the preparation cost and pollution.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a double quaternary ammonium salt type acid dye anti-staining agent.

The invention also provides a double quaternary ammonium salt type acid dye anti-staining soaping agent.

The invention also provides a preparation method of the stain resistant agent and the anti-staining soaping agent. According to the invention, fatty amine polyoxyethylene ether is quaternized by a quaternizing agent (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride, so that the acid dye anti-staining agent with a biquaternary ammonium salt structure can be prepared, the anti-staining effect of the acid dye on negatively charged wool fiber printing and dyeing is effectively improved, the preparation conditions are milder, simpler and more convenient than those of other existing biquaternary ammonium salt acid dye anti-staining soaping agents, the reaction process is easy to control, and the acid dye anti-staining agent is suitable for industrial production.

According to the invention, (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride is adopted to chemically modify fatty amine polyoxyethylene ether, so that the positive charge density of the fatty amine polyoxyethylene ether can be effectively improved. After anionic surfactant Sodium Dodecyl Sulfate (SDS) and non-ionic surfactant peregal O-25 are compounded, it can be combined with uncolored acid dye by means of ionic bond to make it precipitate so as to attain the goal of preventing acid dye from staining fibre.

A double quaternary ammonium salt type acid dye anti-staining agent, wherein the chemical structural formula of the anti-staining agent is shown as formula I:

the formula I is shown in the specification, wherein m and n are integers, and m + n is 15-30.

Preferably, m + n is 15 or 30.

A double quaternary ammonium salt type acid dye anti-staining soaping agent comprises the anti-staining agent, an anionic surfactant and a nonionic surfactant.

Preferably, the anionic surfactant is Sodium Dodecyl Sulfate (SDS) and the nonionic surfactant is peregal O-25.

Preferably, the double quaternary ammonium salt type acid dye anti-staining soaping agent further comprises water.

Preferably, the double quaternary ammonium salt type acid dye anti-staining soaping agent comprises the following components in percentage by weight: 25-35% of a stain-proofing agent, 1-4% of an anionic surfactant, 15-30% of a nonionic surfactant and the balance of water. As a specific embodiment, the double quaternary ammonium salt type acid dye anti-staining soaping agent comprises the following components in percentage by weight: 28% of anti-staining agent, 2.5% of anionic surfactant, 22% of nonionic surfactant and the balance of water.

A method for preparing a bis-quaternary ammonium salt type acid dye anti-staining agent as described in any one of the above, comprising: heating fatty amine polyoxyethylene ether, adding (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride into the fatty amine polyoxyethylene ether, cooling a reaction system, and performing post-treatment to obtain the bis-quaternary ammonium salt type acid dye stain repellent, wherein the chemical structural formula of the bis-quaternary ammonium salt type acid dye stain repellent is as follows:

the formula I is shown in the specification, wherein m and n are integers, and m + n is 15-30; more preferably, m + n is 15 or 30.

The reaction equation is as follows:

in the preparation method, fatty amine polyoxyethylene ether and (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride are adopted to react in one step to prepare the double quaternary ammonium salt type acid dye anti-staining agent, the positive charge density of the unit mass of the agent is higher, and the agent can be combined with uncolored acid dye by ionic bonds to precipitate the acid dye, so that the aim of preventing the acid dye from staining fabrics is fulfilled. And other organic solvents are not required to be additionally used in the preparation process, the post-treatment is simple, the preparation cost is low, and the pollution is reduced.

Preferably, the (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride is dripped into the fatty amine polyoxyethylene ether in an aqueous solution manner, the dripping temperature is 60-110 ℃, and the dripping time is controlled to be 3-6 h.

More preferably, the temperature of the (3-chloro-2-hydroxypropyl) trimethylammonium chloride when the aqueous solution is dropped is 80 to 100 ℃; more preferably 90 deg.c.

Preferably, the dripping time is controlled to be 4-6 h; still more preferably 5 hours.

And when the dropwise addition is finished, basically finishing the reaction, cooling to room temperature by adopting a natural cooling or other cooling modes, and then carrying out post-treatment to obtain the double quaternary ammonium salt type acid dye stain resistant agent.

More preferably, the mass fraction of the aqueous solution of the (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride is 40-80%; more preferably 55 to 75%.

Preferably, the molar ratio of the fatty amine polyoxyethylene ether to the (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride is 1: (1.5-2.25); more preferably 1: (1.75-2.25); still more preferably 1:2.

preferably, the fatty amine polyoxyethylene ether is 1815 or 1830.

Preferably, after the reaction is completed, the following post-treatment is performed:

and obtaining an anti-contamination product turbid liquid after the reaction is finished, carrying out suction filtration on the turbid liquid, and washing and drying filter residues to constant weight to obtain the anti-contamination agent.

Preferably, the drying temperature is 50-70 ℃.

Specifically, a method for preparing a bis-quaternary ammonium salt type acid dye anti-staining agent comprises the following steps:

heating fatty amine polyoxyethylene ether to 60-110 ℃ under the stirring state, dropwise adding an aqueous solution of (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride in the solution within 3-6 hours, naturally cooling to room temperature after dropwise adding, and performing post-treatment to obtain the bis-quaternary ammonium salt type acid dye stain repellent.

Specifically, the preparation method of the double quaternary ammonium salt type acid dye stain repellent comprises the following steps:

(1) under the condition of stirring, heating fatty amine polyoxyethylene ether to 60-110 ℃, and slowly dripping a water solution of a quaternizing agent (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride into a three-neck flask filled with the fatty amine polyoxyethylene ether within 3-6 hours to obtain a mixed solution of the fatty amine polyoxyethylene ether and the trimethyl ammonium chloride.

(2) And after the dropwise addition is finished, naturally cooling the reaction system to room temperature to obtain a suspension of the anti-contamination agent product.

(3) And carrying out post-treatment on the anti-staining agent product suspension to obtain a white powdery anti-staining agent product.

The preparation method of the double quaternary ammonium salt type acid dye anti-staining soaping agent comprises the step of compounding the anti-staining agent, the anionic surfactant and the nonionic surfactant to obtain the double quaternary ammonium salt type acid dye anti-staining soaping agent.

As a specific embodiment, after obtaining the white powdery stain blocker product, the step (4) is performed: the anti-staining soaping agent of the acid dye is prepared by compounding the anti-staining agent with an anionic surfactant SDS and a nonionic surfactant peregal O-25 according to the proportion of 28 percent to 2.5 percent to 22 percent (the balance being water).

According to the double-quaternary-salt-type acid dye anti-staining soaping agent prepared by the invention, one molecule of the double-quaternary-salt-type acid dye anti-staining soaping agent has two unit positive charges, the density of the positive charges is higher, the double-quaternary-salt-type acid dye anti-staining soaping agent can be better combined with the dye through ionic bonds, and the double-quaternary-salt-type acid dye anti-staining soaping agent is prevented from being. Experiments show that the K/S value of stained fabrics of the double quaternary ammonium salt type acid dye anti-staining soaping agent after soaping is obviously lower than that of other commercial soaping agents, and the absorbance of soaping residual liquid is obviously higher than that of other commercial soaping agents, so that the soaping of the prepared acid dye anti-staining soaping agent with the double quaternary ammonium salt structure has an excellent anti-staining effect.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the quaternizing agent (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride with a quaternary ammonium salt structure is reacted with fatty amine polyoxyethylene ether to prepare the acid dye stain repellent, the prepared product has a biquaternary ammonium salt structure, the quantity of quaternary ammonium salts in unit mass is more, the combination degree of the quaternary ammonium salts and the acid dye with anions can be effectively improved, and the stain repellent effect is improved.

2. The acid dye stain-proofing agent can be prepared by one-step reaction, the reaction process is simple and easy to control, and the method is suitable for industrial production.

3. The preparation method of the anti-contamination agent does not need to additionally use other organic solvents, and has the advantages of simple post-treatment, low preparation cost, safety and no pollution.

4. The invention has the advantages of low raw material price, simple preparation process, high reaction conversion rate and high active ingredient content of the product, and shows good anti-staining effect due to the special chemical structure of the product.

Drawings

FIG. 1 shows the quaternary ammonium salt content of the acid dye stain resist prepared by mixing different quaternizing agents with fatty amine polyoxyethylene ether.

FIG. 2 shows the quaternary ammonium salt content of the acid dye anti-staining agent prepared at different reaction temperatures.

Fig. 3 is a graph showing the quaternary ammonium salt content of the acid dye stain blocker prepared by different reaction times.

FIG. 4 is an infrared spectrum of the acid dye stain blocker having a diquaternary ammonium salt structure obtained in example 1.

Detailed Description

The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. After reading the teaching of the present invention, the skilled in the art can make various changes or modifications to the invention, and these equivalents also fall within the scope of the claims appended to the present application.

Example 1

Adding 0.02mol of aliphatic amine polyoxyethylene ether 1815 into a three-neck flask provided with an electric stirrer and a condensation reflux pipe, starting stirring, heating to 90 ℃, slowly dropwise adding an aqueous solution of (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride (wherein the mass fraction of the (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride is 65% and the molar weight is 0.04mol) within 5h, naturally cooling a reaction system to room temperature after dropwise adding is finished, carrying out suction filtration on a reaction product, washing the obtained filter residue for 3-5 times by using ethanol, drying at 50-70 ℃ to constant weight, and crushing into powder to obtain a white powdery antifouling agent product. The anti-staining agent, the anionic surfactant SDS and the nonionic surfactant peregal O-25 are compounded according to the proportion of 28 percent to 2.5 percent to 22 percent (the balance being water) to prepare the acid dye anti-staining soaping agent.

A small amount of biquaternary ammonium salt anti-staining agent prepared by reaction and chromatographic pure potassium bromide particles are mixed, ground and tableted, and an infrared spectrogram of the mixture is tested by Fourier infrared spectroscopy and is shown in figure 4. From FIG. 4, it is apparent that the probe is located at 3150cm^-1～3250cm^-1Absorption peak of hydroxyl group at 3000cm^-1～2850cm^-1Peak of methylene stretching vibration and 1000cm^-1～1200cm^-1The C-N absorption peak of the quaternary ammonium salt proves the successful preparation of the double quaternary ammonium salt type acid dye anti-staining agent.

Example 2

Adding 0.02mol of aliphatic amine polyoxyethylene ether 1815 into a three-neck flask provided with an electric stirrer and a condensation reflux pipe, starting stirring, heating to 80 ℃, slowly dropwise adding an aqueous solution of (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride (wherein the mass fraction of the (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride is 65% and the molar weight is 0.04mol) within 5h, naturally cooling a reaction system to room temperature after dropwise adding is finished, carrying out suction filtration on a reaction product, washing the obtained filter residue for 3-5 times by using ethanol, drying at 50-70 ℃ to constant weight, and crushing into powder to obtain a white powdery antifouling agent product. The anti-staining agent, the anionic surfactant SDS and the nonionic surfactant peregal O-25 are compounded according to the proportion of 28 percent to 2.5 percent to 22 percent (the balance being water) to prepare the acid dye anti-staining soaping agent.

Example 3

Adding 0.02mol of aliphatic amine polyoxyethylene ether 1830 into a three-neck flask provided with an electric stirrer and a condensation reflux pipe, starting stirring, heating to 90 ℃, slowly dropwise adding an aqueous solution of (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride (wherein the mass fraction of the (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride is 65% and the molar weight is 0.045mol) within 5h, naturally cooling a reaction system to room temperature after dropwise adding is finished, carrying out suction filtration on a reaction product, washing the obtained filter residue with ethanol for 3-5 times, drying at 50-70 ℃ to constant weight, and crushing into powder to obtain a white powdery antifouling agent product. The anti-staining agent, the anionic surfactant SDS and the nonionic surfactant peregal O-25 are compounded according to the proportion of 28 percent to 2.5 percent to 22 percent (the balance being water) to prepare the acid dye anti-staining soaping agent.

Optimization conditions example 1: feed mole ratio optimization

Adding 0.02mol of aliphatic amine polyoxyethylene ether 1815 into a three-neck flask provided with an electric stirrer and a condensation reflux pipe, starting stirring, heating to 80 ℃, slowly dropwise adding aqueous solutions of quaternizing agent (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride (wherein the mass fraction of the (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride is 65%, and the molar ratio of n (1815) to n (quaternizing agent) is 1:1, 1:1.5, 1:1.75, 1:2, 1:2.25 and 1:2.5) in different proportions within 4h, naturally cooling a reaction system to room temperature after dropwise adding, carrying out suction filtration on a reaction product, washing the obtained product with ethanol for 3-5 times, drying at 50-70 ℃ to constant weight, and crushing filter residues into powder to obtain a white powdery stain preventing agent product. The reaction yield was calculated and the results are shown in FIG. 1. As shown in the figure 1, the anti-fouling agent product with a certain yield can be prepared when the molar ratio of the fatty amine polyoxyethylene ether 1815 to the quaternizing agent glycidol trimethyl ammonium chloride is within the range of 1: 1-1: 2.5; when the ratio is 1: (1.75-2.25), the yield of the product stain resistant agent is high; and when the ratio is 1:2, the yield of the product is highest.

Optimization conditions example 2: reaction temperature optimization

Adding 0.02mol of aliphatic amine polyoxyethylene ether 1815 into a three-neck flask provided with an electric stirrer and a condensation reflux pipe, starting stirring, heating to 50 ℃, 60 ℃, 70 ℃, 80 ℃, 90 ℃, 100 ℃ and 110 ℃ respectively, slowly dropwise adding an aqueous solution of (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride (wherein the mass fraction of the (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride is 65% and the molar weight is 0.04mol) within 4h, naturally cooling a reaction system to room temperature after dropwise adding is finished, carrying out suction filtration on a reaction product, washing obtained filter residues with ethanol for 3-5 times, drying to constant weight at 50-70 ℃, and crushing into powder to obtain a white powdery antifouling agent product. The reaction yield was calculated and the results are shown in FIG. 2. As can be seen from FIG. 2, when the heating temperature is within the range of 50-110 ℃, the anti-staining agent product can be prepared with a certain yield; when the heating temperature is 80-100 ℃, the yield of the product stain resistant agent is high; and when the temperature is 90 ℃, the yield of the product is highest.

Optimization conditions example 3: drop time optimization

Adding 0.02mol of aliphatic amine polyoxyethylene ether 1815 into a three-neck flask provided with an electric stirrer and a condensation reflux pipe, starting stirring, heating to 90 ℃, slowly dropwise adding an aqueous solution of (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride (wherein the mass fraction of the (3-chloro-2-hydroxypropyl) trimethyl ammonium chloride is 65% and the molar weight is 0.04mol) in 1h, 2h, 3h, 4h, 5h and 6h respectively, after dropwise adding is finished, naturally cooling a reaction system to room temperature, carrying out suction filtration on a reaction product, washing obtained filter residue with ethanol for 3-5 times, drying at 50-70 ℃ to constant weight, and crushing into powder to obtain a white powdery stain resistant agent product. The reaction yield was calculated and the results are shown in FIG. 3. As can be seen from FIG. 3, when the dripping time is 1-6 h, the anti-staining agent product can be prepared with a certain yield; when the dripping time is 4-6 h, the yield of the product stain-proofing agent is high; and when the dropping time is 5 hours, the yield of the product is highest.

Soaping anti-staining effect experiment:

the bis-quaternary ammonium salt type anti-staining agent prepared in example 1 was compounded with an anionic surfactant SDS and a nonionic surfactant peregal O-25 in a ratio of 28% to 2.5% to 22% to prepare a bis-quaternary ammonium salt type acid dye anti-staining soaping agent. Subsequently, it was combined with three additional commercial soaping agents: the MA-AA soaping agent, the soaping agent NR-2 and the soaping agent SNR are subjected to the anti-staining performance test under the conditions that the dosage of the soaping agent is 9g/L, the temperature is 75 ℃, the soaping time is 20 minutes and the bath ratio is 1:40, and the test results are shown in Table 1.

TABLE 1 soaping stain prevention effect of different soaping agents

As can be seen from table 1, under the same conditions, the K/S value of the stained fabric after soaping of the diquaternary ammonium salt type acid dye anti-staining soaping agent prepared by the present invention is significantly lower than that of other commercial soaping agents, and the absorbance of the soaping residual liquid is significantly higher than that of other commercial soaping agents, which indicates that the soaping of the acid dye anti-staining soaping agent with the diquaternary ammonium salt structure has an excellent anti-staining effect, and the main reason is as follows: the acid dye is an anionic dye, and one molecule of the double-quaternary ammonium salt type anti-staining soaping agent has two unit positive charges, has higher positive charge density, and can be better combined with the dye through ionic bonds.