Laundry liquid mother liquor concentrate and method of making same

Abstract

The present application relates to the technical field of washing composition, and discloses a laundry liquid mother liquor concentrate and a preparation method thereof, which comprises 5-30 parts of sodium alpha-alkenyl sulfonate, 5-30 parts of sodium dodecyl sulfate, 1-10 parts of fatty alcohol polyoxyethylene ether, 1-3 parts of hydroxypropyl methyl cellulose, 1-9 parts of propylene glycol, 0.1-3 parts of disodium ethylenediaminetetraacetate, 0.01-1 parts of preservative, 0.1-2 parts of daily use perfume, 0.1-2 parts of microcapsule, 0.01-0.03 parts of color powder, 1-10 parts of sodium salt, 1-10 parts of magnesium salt and the rest deionized water. In the present application, through the specific compounding ratio of the three surfactants of sodium alpha-alkenyl sulfonate, sodium dodecyl sulfate and fatty alcohol polyoxyethylene ether, and the addition of sodium salt and magnesium salt, the laundry liquid mother liquor concentrate can be completely dissolved after dilution and directly reach the appropriate consistency, the user does not need any stirring operation, and the dissolution speed is fast, which greatly improves the use convenience.

Description

Technical Field

[0001] This invention relates to the field of washing composition technology, and in particular to a concentrated laundry detergent mother liquor and its preparation method. Background Technology

[0002] Laundry detergent, as an essential household product, has seen its online sales climb year by year, especially with the development of e-commerce. Traditional laundry detergents have a water content as high as 80%-90%, meaning a large amount of water is transported during shipping, leading to high express delivery costs and severely squeezing the profit margins of e-commerce merchants. Furthermore, bottled laundry detergent is prone to breakage and leakage during transportation due to squeezing and collisions, causing not only product loss but also contamination of other packages and triggering numerous after-sales issues.

[0003] Therefore, existing technologies for producing concentrated laundry detergent mother liquor are convenient for transportation, but when using it, the mother liquor and tap water need to be thoroughly stirred to ensure proper mixing. After mixing, it also needs to be left to stand for a period of time before it can be used, which is inconvenient. Therefore, a concentrated laundry detergent mother liquor and its preparation method are proposed. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of high transportation costs and easy breakage of laundry detergent in the prior art, and the slow dissolution of existing concentrates requiring long-term stirring. Therefore, this invention proposes a laundry detergent mother liquor concentrate and its preparation method.

[0005] To achieve the above objectives, the present invention provides a concentrated laundry detergent mother liquor comprising the following components: sodium α-alkenyl sulfonate, sodium dodecyl sulfate, fatty alcohol polyoxyethylene ether, hydroxypropyl methylcellulose, propylene glycol, disodium ethylenediaminetetraacetate, preservatives, daily fragrance, microcapsules, color powder, sodium salt, magnesium salt, and deionized water.

[0006] Sodium α-alkenyl sulfonate, sodium dodecyl sulfate, and fatty alcohol polyoxyethylene ether, three anionic and nonionic surfactants, are formulated in a specific ratio to form the main detergency components, which are compatible with emulsification, dispersion, and foaming abilities. Hydroxypropyl methylcellulose acts as a thickener to regulate viscosity, improve rheology box wall adhesion, and resist redeposition. Propylene glycol acts as a thickener and cosolvent, improving the compatibility of the components and preventing the system from separating. Disodium EDTA chelates metal ions, enhances stain removal, stabilizes the product system, and protects colors and fabrics. Preservatives prevent liquids from deteriorating during long-term storage; daily fragrances improve product odor; microcapsules extend the fragrance's lasting effect, making washed clothes smell fresh for a long time. Pigments change the color of liquids and improve their appearance, while sodium and magnesium salts increase the viscosity of liquids.

[0007] As a further description of the above technical solution: The product comprises the following components in parts by weight: 5-30 parts sodium α-alkenyl sulfonate, 5-30 parts sodium dodecyl sulfate, 1-10 parts fatty alcohol polyoxyethylene ether, 1-3 parts hydroxypropyl methylcellulose, 1-9 parts propylene glycol, 0.1-3 parts disodium ethylenediaminetetraacetate, 0.01-1 part preservative, 0.1-2 parts daily fragrance, 0.1-2 parts microcapsules, 0.01-0.03 parts colorant, 1-10 parts sodium salt, 1-10 parts magnesium salt, and the balance being deionized water.

[0008] As a further description of the above technical solution: The product comprises the following components in parts by weight: 15-20 parts sodium α-alkenyl sulfonate, 15-20 parts sodium dodecyl sulfate, 3-6 parts fatty alcohol polyoxyethylene ether, 1.5-2.5 parts hydroxypropyl methylcellulose, 4-6 parts propylene glycol, 1-2 parts disodium ethylenediaminetetraacetate, 0.04-0.06 parts preservative, 0.5-1 part daily fragrance, 0.8-1.5 parts microcapsules, 0.01-0.03 parts colorant, 3-6 parts sodium salt, 3-6 parts magnesium salt, and the balance deionized water.

[0009] As a further description of the above technical solution: The product comprises the following components in parts by weight: 18 parts sodium α-alkenyl sulfonate, 18 parts sodium dodecyl sulfate, 5 parts fatty alcohol polyoxyethylene ether, 2 parts hydroxypropyl methylcellulose, 5 parts propylene glycol, 1.5 parts disodium ethylenediaminetetraacetate, 0.05 parts preservative, 0.8 parts daily fragrance, 1 part microcapsule, 0.02 parts colorant, 5 parts sodium salt, 5 parts magnesium salt, and the balance being deionized water.

[0010] As a further description of the above technical solution: The preservative is one of Kathon, phenoxyethanol, and potassium sorbate.

[0011] As a further description of the above technical solution: The daily-use fragrance is one of lavender fragrance, lemon fragrance, jasmine fragrance, and rose fragrance.

[0012] As a further description of the above technical solution: The pigment is a food-grade water-soluble pigment, including one of brilliant blue, lemon yellow, and carmine.

[0013] A method for preparing a concentrated laundry detergent mother liquor is also provided, comprising the following steps: (1) Feeding: Add the prescribed amount of deionized water to the reactor and start stirring; (2) Add surfactant: Add sodium α-alkenyl sulfonate, sodium dodecyl sulfate and fatty alcohol polyoxyethylene ether in sequence, and stir at 300-500 rpm for 20-30 minutes until completely dissolved and transparent; (3) Add hydroxypropyl methylcellulose: Slowly sprinkle in the amount of hydroxypropyl methylcellulose in the formula while stirring. Continue stirring for 15-20 minutes until the hydroxypropyl methylcellulose is completely dissolved. (4) Adding additives: Add the following in sequence: propylene glycol, disodium ethylenediaminetetraacetate, preservative, daily fragrance, microcapsules and color powder, and continue stirring for 10-15 minutes until well mixed; (5) Thickening adjustment: Slowly add the sodium and magnesium salts according to the formula, stirring while adding, for 15-20 minutes until the solution is uniform; (6) Discharge: Discharge and fill to obtain the concentrated laundry detergent mother liquor.

[0014] As a further description of the above technical solution: Add 350 grams of concentrated laundry detergent stock solution to 4.7 kg of ordinary tap water. It will dissolve completely and reach a suitable consistency without stirring, yielding 5 kg of finished laundry detergent.

[0015] The present invention has the following beneficial effects: 1. In this invention, by using a specific compounding ratio of three surfactants—sodium α-alkenyl sulfonate, sodium dodecyl sulfate, and fatty alcohol polyoxyethylene ether—as well as the addition of sodium and magnesium salts, complete dissolution and direct achievement of a suitable consistency after dilution with water are achieved. Users do not need to perform any stirring operations, and the dissolution speed is fast, greatly improving the convenience of use.

[0016] 2. In this invention, the concentration ratio of the laundry detergent mother liquor is as high as 1:13.4 (350 grams of mother liquor to 4.7 kilograms of water). Compared with traditional bottled laundry detergent, the transportation weight is reduced by 93%, which significantly reduces express delivery costs. The bag packaging weighs only 350 grams per bag, which is small in size and light in weight, reducing the possibility of breakage and leakage during transportation.

[0017] 3. In this invention, a laundry detergent with high liquid concentration and low irritation can be produced without using AES. Furthermore, this product does not require heating throughout the entire preparation and production process, reducing production energy consumption. Compared with traditional processes, it is more energy-efficient and reduces production costs. Detailed Implementation

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] To address the problems in the background art, this application provides a concentrated laundry detergent mother liquor and its preparation method.

[0020] Example 1: A concentrated laundry detergent mother liquor and its preparation method, comprising the following components: 10 parts sodium α-alkenyl sulfonate, 10 parts sodium dodecyl sulfate, 3 parts fatty alcohol polyoxyethylene ether, 1 part hydroxypropyl methylcellulose, 3 parts propylene glycol, 1 part disodium ethylenediaminetetraacetate, 0.03 parts Kathon preservative, 0.5 parts lavender fragrance, 0.8 parts microcapsules, 0.01 parts brilliant blue powder, 3 parts sodium salt, 3 parts magnesium salt, and 2.35 parts deionized water.

[0021] The preparation method includes the following steps: (1) Add 2.35 parts of deionized water to the reactor and start stirring; (2) Add 10 parts sodium dodecyl sulfate, 10 parts sodium α-alkenyl sulfonate and 3 parts fatty alcohol polyoxyethylene ether in sequence, and stir at 400 rpm for 25 minutes until the solution is completely transparent; (3) Slowly sprinkle in 1 part of hydroxypropyl methylcellulose while stirring. Continue stirring for 18 minutes until the hydroxypropyl methylcellulose is completely dissolved and the solution is uniform and free of particles. (4) Add 3 parts propylene glycol, 1 part disodium ethylenediaminetetraacetate, 0.03 parts Kathon preservative, 0.5 parts lavender fragrance, 0.8 parts microcapsules, and 0.01 parts brilliant blue powder in sequence, and continue stirring for 12 minutes until well mixed; (5) Slowly add 3 parts of sodium salt and magnesium salt while stirring for 18 minutes until the solution is homogeneous; (6) Discharge and fill to obtain concentrated laundry detergent mother liquor.

[0022] The method of use is to take 350 grams of the laundry detergent mother liquor concentrate prepared in this embodiment and add it to 4.7 kg of ordinary tap water. No stirring is required. The laundry detergent mother liquor concentrate can be directly and completely dissolved in tap water and reach a suitable consistency. It thickens in seconds to obtain 5 kg of finished laundry detergent. The mother liquor concentrate can be used directly after dissolving without standing for a period of time or stirring.

[0023] Example 2: A concentrated laundry detergent mother liquor and its preparation method, comprising the following components: 25 parts sodium α-alkenyl sulfonate, 25 parts sodium dodecyl sulfate, 8 parts fatty alcohol polyoxyethylene ether, 3 parts hydroxypropyl methylcellulose, 8 parts propylene glycol, 2 parts disodium ethylenediaminetetraacetate, 0.8 parts phenoxyethanol preservative, 1.5 parts lemon fragrance, 1.5 parts microcapsules, 0.03 parts lemon yellow powder, 8 parts sodium salt, 8 parts magnesium salt, and 2.14 parts deionized water.

[0024] The preparation method includes the following steps: (1) Add 2.14 parts of deionized water to the reactor and start stirring; (2) Add 25 parts sodium dodecyl sulfate, 25 parts sodium α-alkenyl sulfonate and 8 parts fatty alcohol polyoxyethylene ether in sequence, and stir at 350 rpm for 30 minutes until the solution is completely transparent; (3) Slowly sprinkle in 3 parts of hydroxypropyl methylcellulose while stirring. Continue stirring for 20 minutes until the hydroxypropyl methylcellulose is completely dissolved and the solution is uniform and free of particles. (4) Add 8 parts propylene glycol, 2 parts disodium ethylenediaminetetraacetate, 0.8 parts phenoxyethanol preservative, 1.5 parts lemon flavoring, 1.5 parts microcapsules, and 0.03 parts lemon yellow powder in sequence, and continue stirring for 15 minutes until well mixed; (5) Slowly add 8 parts of sodium salt and magnesium salt while stirring for 20 minutes until the solution is homogeneous; (6) Discharge and fill to obtain concentrated laundry detergent mother liquor.

[0025] The method of use is to take 350 grams of the laundry detergent mother liquor concentrate prepared in this embodiment and add it to 4.7 kg of ordinary tap water. No stirring is required. The laundry detergent mother liquor concentrate can be directly and completely dissolved in tap water and reach a suitable consistency. It thickens in seconds to obtain 5 kg of finished laundry detergent. The mother liquor concentrate can be used directly after dissolving without standing for a period of time or stirring.

[0026] Example 3: A concentrated laundry detergent mother liquor and its preparation method, comprising the following components: 18 parts sodium α-alkenyl sulfonate, 18 parts sodium dodecyl sulfate, 5 parts fatty alcohol polyoxyethylene ether, 2 parts hydroxypropyl methylcellulose, 5 parts propylene glycol, 1.5 parts disodium ethylenediaminetetraacetate, 0.05 parts potassium sorbate preservative, 0.8 parts jasmine fragrance, 1 part microcapsule, 0.02 parts carmine red powder, 5 parts sodium salt, 5 parts magnesium salt, and 3.56 parts deionized water.

[0027] The preparation method includes the following steps: (1) Add 3.56 parts of deionized water to the reactor and start stirring; (2) Add 18 parts sodium dodecyl sulfate, 18 parts sodium α-alkenyl sulfonate and 5 parts fatty alcohol polyoxyethylene ether in sequence, and stir at 450 rpm for 20 minutes until the solution is completely transparent; (3) Slowly sprinkle in 2 parts of hydroxypropyl methylcellulose while stirring. Continue stirring for 15 minutes until the hydroxypropyl methylcellulose is completely dissolved and the solution is uniform and free of particles. (4) Add 5 parts propylene glycol, 1.5 parts disodium ethylenediaminetetraacetate, 0.05 parts potassium sorbate preservative, 0.8 parts jasmine fragrance, 1 part microcapsule, and 0.02 parts carmine red powder in sequence and stir for 10 minutes until well mixed; (5) Slowly add 5 parts of sodium salt and magnesium salt while stirring for 25 minutes until the solution is homogeneous; (6) Discharge and fill to obtain concentrated laundry detergent mother liquor.

[0028] The method of use is to take 350 grams of the laundry detergent mother liquor concentrate prepared in this embodiment and add it to 4.7 kg of ordinary tap water. No stirring is required. The laundry detergent mother liquor concentrate can be directly and completely dissolved in tap water and reach a suitable consistency. It thickens in seconds to obtain 5 kg of finished laundry detergent. The mother liquor concentrate can be used directly after dissolving without standing for a period of time or stirring.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A concentrated laundry detergent mother liquor, characterized in that, It includes the following components: sodium α-alkenyl sulfonate, sodium dodecyl sulfate, fatty alcohol polyoxyethylene ether, hydroxypropyl methylcellulose, propylene glycol, disodium ethylenediaminetetraacetate, preservatives, daily fragrance, microcapsules, color powder, sodium salt, magnesium salt, and deionized water.

2. The laundry detergent mother liquor concentrate according to claim 1, characterized in that, The product comprises the following components in parts by weight: 5-30 parts sodium α-alkenyl sulfonate, 5-30 parts sodium dodecyl sulfate, 1-10 parts fatty alcohol polyoxyethylene ether, 1-3 parts hydroxypropyl methylcellulose, 1-9 parts propylene glycol, 0.1-3 parts disodium ethylenediaminetetraacetate, 0.01-1 part preservative, 0.1-2 parts daily fragrance, 0.1-2 parts microcapsules, 0.01-0.03 parts colorant, 1-10 parts sodium salt, 1-10 parts magnesium salt, and the balance being deionized water.

3. The laundry detergent mother liquor concentrate according to claim 2, characterized in that, The product comprises the following components in parts by weight: 15-20 parts sodium α-alkenyl sulfonate, 15-20 parts sodium dodecyl sulfate, 3-6 parts fatty alcohol polyoxyethylene ether, 1.5-2.5 parts hydroxypropyl methylcellulose, 4-6 parts propylene glycol, 1-2 parts disodium ethylenediaminetetraacetate, 0.04-0.06 parts preservative, 0.5-1 part daily fragrance, 0.8-1.5 parts microcapsules, 0.01-0.03 parts colorant, 3-6 parts sodium salt, 3-6 parts magnesium salt, and the balance deionized water.

4. The laundry detergent mother liquor concentrate according to claim 3, characterized in that, The product comprises the following components in parts by weight: 18 parts sodium α-alkenyl sulfonate, 18 parts sodium dodecyl sulfate, 5 parts fatty alcohol polyoxyethylene ether, 2 parts hydroxypropyl methylcellulose, 5 parts propylene glycol, 1.5 parts disodium ethylenediaminetetraacetate, 0.05 parts preservative, 0.8 parts daily fragrance, 1 part microcapsule, 0.02 parts colorant, 5 parts sodium salt, 5 parts magnesium salt, and the balance being deionized water.

5. The laundry detergent mother liquor concentrate according to claim 4, characterized in that, The preservative is one of Kathon, phenoxyethanol, and potassium sorbate.

6. The laundry detergent mother liquor concentrate according to claim 5, characterized in that, The daily-use fragrance is one of lavender fragrance, lemon fragrance, jasmine fragrance, and rose fragrance.

7. The laundry detergent mother liquor concentrate according to claim 6, characterized in that, The pigment is a food-grade water-soluble pigment, including one of brilliant blue, lemon yellow, and carmine.

8. A method for preparing a concentrated laundry detergent mother liquor as described in any one of claims 1-7, characterized in that, Includes the following steps: (1) Feeding: Add the prescribed amount of deionized water to the reactor and start stirring; (2) Add surfactant: Add sodium α-alkenyl sulfonate, sodium dodecyl sulfate and fatty alcohol polyoxyethylene ether in sequence, and stir at 300-500 rpm for 20-30 minutes until completely dissolved and transparent; (3) Add hydroxypropyl methylcellulose: Slowly sprinkle in the amount of hydroxypropyl methylcellulose in the formula while stirring. Continue stirring for 15-20 minutes until the hydroxypropyl methylcellulose is completely dissolved. (4) Adding additives: Add the following in sequence: propylene glycol, disodium ethylenediaminetetraacetate, preservative, daily fragrance, microcapsules and color powder, and continue stirring for 10-15 minutes until well mixed; (5) Thickening adjustment: Slowly add the sodium and magnesium salts according to the formula, stirring while adding, for 15-20 minutes until the solution is uniform; (6) Discharge: Discharge and fill to obtain the concentrated laundry detergent mother liquor.

9. The method for preparing the concentrated laundry detergent mother liquor according to claim 8, characterized in that, Add 350 grams of concentrated laundry detergent stock solution to 4.7 kg of ordinary tap water. It will dissolve completely and reach a suitable consistency without stirring, yielding 5 kg of finished laundry detergent.