阅读说明：本技术 一种具有增加衣物柔顺性能的洗衣液 (Laundry detergent capable of increasing clothes flexibility ) 是由 程初霁 汤麒 于 2020-05-13 设计创作，主要内容包括：本发明公开了一种具有增加衣物柔顺性能的洗衣液,由以下重量份的原料制成：2-10份脂肪醇聚氧乙烯醚-9、2-10份脂肪醇聚氧乙烯醚-7、5-10份十二烷基磺酸钠、2-6份对甲苯磺酸钠、4-8份阳离子烷基多糖苷、2.5-5.5份羧甲基纤维素、1-4份椰油酰胺基丙基甜菜碱、2-6份蛋白酶、0.5-2.5份改性柔顺剂、1.5-6份柠檬酸、0.3-0.7份香精、30-50份丙二醇、200-300份去离子水；在配方中加入的改性柔顺剂为改性柔顺剂C1或者改性柔顺剂C2,均具有良好的水溶性和生物降解性,赋予了织物优良的爽滑性能。(The invention discloses a laundry detergent capable of improving clothes flexibility, which is prepared from the following raw materials in parts by weight: 2-10 parts of fatty alcohol-polyoxyethylene ether-9, 2-10 parts of fatty alcohol-polyoxyethylene ether-7, 5-10 parts of sodium dodecyl sulfate, 2-6 parts of sodium p-toluenesulfonate, 4-8 parts of cationic alkyl polyglycoside, 2.5-5.5 parts of carboxymethyl cellulose, 1-4 parts of cocamidopropyl betaine, 2-6 parts of protease, 0.5-2.5 parts of modified softener, 1.5-6 parts of citric acid, 0.3-0.7 part of essence, 30-50 parts of propylene glycol and 300 parts of 200-ion water; the modified softener C1 or C2 is added into the formula, so that the modified softener has good water solubility and biodegradability, and the fabric has excellent smoothness.)

1. A laundry detergent with increased clothes flexibility, characterized in that: the feed is prepared from the following raw materials in parts by weight: 2-10 parts of fatty alcohol-polyoxyethylene ether-9, 2-10 parts of fatty alcohol-polyoxyethylene ether-7, 5-10 parts of sodium dodecyl sulfate, 2-6 parts of sodium p-toluenesulfonate, 4-8 parts of cationic alkyl polyglycoside, 2.5-5.5 parts of carboxymethyl cellulose, 1-4 parts of cocamidopropyl betaine, 2-6 parts of protease, 0.5-2.5 parts of modified softener, 1.5-6 parts of citric acid, 0.3-0.7 part of essence, 30-50 parts of propylene glycol and 300 parts of 200-ion water.

2. The laundry detergent of claim 1, wherein said laundry detergent is a laundry detergent with increased laundry compliance properties, said laundry detergent comprising: the modified softener is modified softener C1, and the addition amount of modified softener C1 is 1.3-2.5 parts.

3. The laundry detergent of claim 1, wherein said laundry detergent is a laundry detergent with increased laundry compliance properties, said laundry detergent comprising: the modified softener is modified softener C2, and the addition amount of modified softener C2 is 0.5-1.5 parts.

4. The laundry detergent of claim 1, wherein said laundry detergent is a laundry detergent with increased laundry compliance properties, said laundry detergent comprising: the modified softener is a modified softener C1 or a modified softener C2, and the specific preparation method comprises the following steps:

step one, 0.1mol of crotyl alcohol and 10-15mmol of SnCl₄Adding the mixture into a reaction kettle, introducing nitrogen to replace air in the reaction kettle, heating to 65-70 ℃, dropwise adding 0.11-0.15mol of epoxy chloropropane, controlling the dropwise adding time to be 40-60min, after the dropwise adding is finished, keeping the temperature, stirring and reacting for 1-2h, and after the reaction is finished, distilling under reduced pressure to remove unreacted epoxy chloropropane to obtain a compound A;

step two, adding 0.10-0.11mol of 1- [ bis (2-hydroxyethyl) amino ] -2-propanol and 300ml of solvent anhydrous ethanol into the compound A prepared in the step one, introducing nitrogen to replace air in the reaction kettle, heating to 90-95 ℃, stirring for reaction for 8-10h, and after the reaction is finished, carrying out reduced pressure distillation to remove the solvent ethanol and unreacted 1- [ bis (2-hydroxyethyl) amino ] -2-propanol to obtain a compound B;

step three, adding 0.10-0.12mol of heptamethyltrisiloxane, a catalyst and a solvent into the compound B prepared in the step two, introducing nitrogen to replace air in the reaction kettle, heating to 110 ℃ and stirring for reaction for 5-6h, and after the reaction is finished, carrying out reduced pressure distillation to obtain a modified softener C1;

and step four, adding 57-60g of stearic acid into a reaction kettle, heating to 80-85 ℃, melting the stearic acid into liquid, adding a catalyst and the modified softener C1 prepared in the step three, heating to 180-190 ℃, carrying out heat preservation reaction for 8-10h, cooling to room temperature after the reaction is finished, and recrystallizing to obtain the modified softener C2.

5. The laundry detergent of claim 4, wherein said laundry detergent is a laundry detergent with increased laundry compliance properties, wherein said laundry detergent comprises: in the third step, the catalyst is RhCl (Ph)₃P)₃The dosage of the catalyst is 3-5 mmol.

6. The laundry detergent of claim 4, wherein said laundry detergent is a laundry detergent with increased laundry compliance properties, wherein said laundry detergent comprises: in the third step, the solvent is tert-amyl alcohol, and the addition amount of the solvent is 350-500 ml.

7. The laundry detergent of claim 4, wherein said laundry detergent is a laundry detergent with increased laundry compliance properties, wherein said laundry detergent comprises: in the fourth step, the catalyst is hypophosphorous acid, and the addition amount of the catalyst is 40-50 mmol.

8. The laundry detergent of claim 4, wherein said laundry detergent is a laundry detergent with increased laundry compliance properties, wherein said laundry detergent comprises: in the fourth step, the temperature rising speed is 8-10 ℃/min.

9. The laundry detergent of claim 4, wherein said laundry detergent is a laundry detergent with increased laundry compliance properties, wherein said laundry detergent comprises: in the fourth step, the recrystallization is carried out by using 75% ethanol water solution.

Technical Field

The invention belongs to the technical field of detergents, and particularly relates to a laundry detergent capable of improving clothes flexibility.

Background

Fabric softeners are a class of chemicals that change the static and dynamic coefficients of friction of various fabric fibers. The action principle is as follows: when the fabric softener is attached to the surface of the fabric, the static friction coefficient of the fabric can be improved, and the fabric has smooth hand feeling, so that the fabric is easy to move on the fiber or the fabric; meanwhile, the fine structures among the fibers are easy to move mutually, so that the fibers or the fabrics are easy to deform, and a soft and comfortable comprehensive feeling is given to people.

The esterquat is the main active ingredient of a new generation of clothes softener, and because of good softening performance and excellent biodegradability, the esterquat gradually replaces the traditional double-long-chain alkyl quat in a civil clothes softener product and becomes the main raw material of the softener product on the market; however, if the carbon chain in the ester group is short, even if a large amount of the ester group is adsorbed on the surface of the clothes, the softening and smoothing effect is not achieved, and if the hydrophobic group is too much (such as triester quaternary ammonium salt), the product has substantially no solubility in water, so that cations cannot be adsorbed on the surface of the clothes, and the softening of the clothes is not mentioned.

In addition, the degree of esterification is different, and the biodegradation speed is greatly different. The degradation rate of monoester is higher than that of diester, higher than that of mixed ester, and higher than that of triester. The degradation speed is different because the esterquat has different solubility in water, the degradation liquid is aqueous solution, and can be degraded by microorganism only when fully contacting with the degradation liquid. Triester has a relatively large molecular structure due to poor water solubility, and cannot sufficiently contact degradation liquid, and therefore, is difficult to be decomposed by microorganisms.

Therefore, the mixture of monoester quaternary ammonium salt, diester quaternary ammonium salt and triester quaternary ammonium salt is commonly used as the formula of the softener in the prior art, the workload is increased by adopting the mode, and the problem of triester quaternary ammonium salt degradation is still not solved.

The organic silicon softening agent is more and more emphasized by people due to the unique surface property and excellent softening property, is widely applied to fabric finishing, can treat fabrics including natural fiber fabrics such as cotton, hemp and the like, and various synthetic fibers such as terylene, nylon and the like, has better smooth effect, has the biggest defect of high price and high cost, is easy to cause floating oil when in use, and can be applied to the fabrics only after being prepared into silicone oil emulsion under the action of an emulsifier.

Disclosure of Invention

The invention aims to provide a laundry detergent capable of improving clothes flexibility, wherein a modified softener is added into a formula, and the modified softener is a modified softener C1 or a modified softener C2, so that the laundry detergent has good water solubility and biodegradability, and the fabric has excellent smoothness.

The purpose of the invention can be realized by the following technical scheme:

a laundry detergent capable of improving clothes flexibility is prepared from the following raw materials in parts by weight: 2-10 parts of fatty alcohol-polyoxyethylene ether-9, 2-10 parts of fatty alcohol-polyoxyethylene ether-7, 5-10 parts of sodium dodecyl sulfate, 2-6 parts of sodium p-toluenesulfonate, 4-8 parts of cationic alkyl polyglycoside, 2.5-5.5 parts of carboxymethyl cellulose, 1-4 parts of cocamidopropyl betaine, 2-6 parts of protease, 0.5-2.5 parts of modified softener, 1.5-6 parts of citric acid, 0.3-0.7 part of essence, 30-50 parts of propylene glycol and 300 parts of 200-ion water.

The preparation method of the laundry detergent comprises the following steps:

firstly, uniformly mixing fatty alcohol-polyoxyethylene ether-9, fatty alcohol-polyoxyethylene ether-7, sodium dodecyl sulfate, sodium p-toluenesulfonate, cationic alkyl polyglycoside and 50% of deionized water at room temperature, slowly heating to 55-60 ℃, and stirring for 40-60 min;

step two, cooling to 35-40 ℃, adding cocamidopropyl betaine, protease, a modified softener and propylene glycol into the solution obtained in the step one, and stirring and mixing for 30-45min at the constant temperature;

and thirdly, adding the rest deionized water at the temperature of the second step, stirring for 10-15min, sequentially adding citric acid, carboxymethyl cellulose and essence, and uniformly stirring to obtain the laundry detergent with the function of improving the clothes flexibility.

Further, the modified softener is modified softener C1, and the addition amount of the modified softener C1 is 1.3-2.5 parts.

Further, the modified softener is modified softener C2, and the addition amount of the modified softener C2 is 0.5-1.5 parts.

Further, the modified softener is a modified softener C1 or a modified softener C2, and the specific preparation method comprises the following steps:

step one, 0.1mol of crotyl alcohol and 10-15mmol of SnCl₄Adding the mixture into a reaction kettle, introducing nitrogen to replace air in the reaction kettle, heating to 65-70 ℃, dropwise adding 0.11-0.15mol of epoxy chloropropane, controlling the dropwise adding time to be 40-60min, after the dropwise adding is finished, keeping the temperature, stirring and reacting for 1-2h, and after the reaction is finished, distilling under reduced pressure to remove unreacted epoxy chloropropane to obtain a compound A;

step two, adding 0.10-0.11mol of 1- [ bis (2-hydroxyethyl) amino ] -2-propanol and 300ml of solvent anhydrous ethanol into the compound A prepared in the step one, introducing nitrogen to replace air in the reaction kettle, heating to 90-95 ℃, stirring for reaction for 8-10h, and after the reaction is finished, carrying out reduced pressure distillation to remove the solvent ethanol and unreacted 1- [ bis (2-hydroxyethyl) amino ] -2-propanol to obtain a compound B;

step three, adding 0.10-0.12mol of heptamethyltrisiloxane, a catalyst and a solvent into the compound B prepared in the step two, introducing nitrogen to replace air in the reaction kettle, heating to 110 ℃ and stirring for reaction for 5-6h, and after the reaction is finished, carrying out reduced pressure distillation to obtain a modified softener C1;

and step four, adding 57-60g of stearic acid into a reaction kettle, heating to 80-85 ℃, melting the stearic acid into liquid, adding a catalyst and the modified softener C1 prepared in the step three, heating to 180-190 ℃, carrying out heat preservation reaction for 8-10h, cooling to room temperature after the reaction is finished, and recrystallizing to obtain the modified softener C2.

Further, in the third step, the catalyst is RhCl (Ph)₃P)₃The dosage of the catalyst is 3-5 mmol.

Further, in the third step, the solvent is tert-amyl alcohol, and the addition amount of the solvent is 350-500 ml.

Further, in the fourth step, the catalyst is hypophosphorous acid, and the adding amount of the catalyst is 40-50 mmol.

Further, in the fourth step, the temperature rising speed is 8-10 ℃/min.

Further, in the fourth step, the recrystallization is carried out by using a 75% ethanol aqueous solution.

The invention has the beneficial effects that:

the invention provides a laundry detergent capable of increasing clothes flexibility, wherein a modified softener is added into a formula, the modified softener is a modified softener C1 or a modified softener C2, firstly, a starting material crotyl alcohol and epichlorohydrin are subjected to a ring-opening reaction to obtain a compound A, and then the compound A and 1- [ bis (2-hydroxyethyl) amino group]Substitution reaction of-2-propanol to give quaternized compound B, reacting with heptamethyltrisiloxane in RhCl (Ph) under nitrogen atmosphere₃P)₃The modified softener C1 with good water solubility is prepared by hydrosilylation reaction under the catalysis of the catalyst, and through further research and exploration, partial esterification reaction can be carried out on one equivalent of the modified softener C1 and two equivalents of stearic acid under the action of hypophosphorous acid, so that the modified softener C2 is obtained;

the prepared modified softener C1 has 4 hydrophilic functional groups of hydroxyl and N⁺The modified softener C1 has high solubility in water, the compatibility with other components of the laundry detergent is increased, the dispersion speed in the washing process is increased, the modified softener C1 can be adsorbed on the washed objects in an all-around and firm manner without adding an emulsifier, and the main chain of the modified softener C1 can freely rotate at 360 degrees around a Si-O bond, so that the fabric is endowed with excellent smoothness;

compared with the modified softener C1, the prepared modified softener C2 has 2 less hydroxyl groups, but compared with the existing softener, 2 molecules of hydroxyl groups and N⁺The fabric softener still has good adsorbability to fabrics, and also has good water solubility and biodegradability although the water solubility is slightly lower than that of the modified softener C1; the modified softener C1 is connected with 2 molecular alkyl long chains through esterification, and the softening synergistic ester group of organosiliconThe softening mechanism of the quaternary ammonium salt greatly improves the softening treatment of the fabric, thereby relatively reducing the using amount of the softener, reducing the using cost and improving the working efficiency.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a reaction flow for preparing modified softener according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.