A commercial laundry detergent of water scale inhibiting type

Abstract

The present application relates to a kind of water scale type commercial washing liquid, belong to daily chemical technical field.The raw material of commercial washing liquid provided by the present application includes fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene ether sodium sulfate, water softener, cellulose ether, sodium coconut oil, sodium chloride, urea, sodium hydroxide, sodium dodecyl benzene sulfonate, polyacrylate, isothiazolinone, polyether modified silicone oil, purified water.The present application uses fatty alcohol polyoxyethylene ether sodium sulfate, fatty alcohol polyoxyethylene ether, sodium dodecyl benzene sulfonate, sodium coconut oil Multiple surfactants such as compound to improve the performance of stain removal, and polyacrylate and cellulose ether Compound realizes the anti-redeposition when fiber material fabric treatment, on this basis, introduce the polyether modified silicone oil coated by Pluronic F-127 Effectively realize low foam residue, combined with water softener and other components, synergistically play the beneficial effects of anti-redeposition, efficient stain removal, easy rinsing.

Description

Technical Field

[0001] This invention belongs to the field of daily chemical technology and relates to a scale-resistant commercial laundry detergent. Background Technology

[0002] In modern laundry services, laundry detergent, as a key washing medium, has broad application prospects. Traditional laundry detergents, mostly for household use, are generally composed of multiple surfactants and enzymes. Due to the stability of their appearance and phase composition, they are difficult to integrate with water softeners and anti-redeposition agents. When water hardness is ≥80ppm, the detergency of cleaning agents will significantly decrease even when using hard-water resistant surfactants if water softeners and dispersants are lacking. Furthermore, the lack of anti-redeposition agents results in insufficient stain resistance, leading to continuous limescale buildup in washing machines over time, which is harmful to the equipment. Commercial laundry detergents, on the other hand, require high-performance washing. Hotel linens such as towels, sheets, work clothes, and restaurant tablecloths often have stubborn stains that conventional detergents cannot effectively remove. High-temperature washing, however, can be costly and uneconomical. Therefore, it is necessary to further optimize and improve the formulation of household laundry detergents to overcome the shortcomings of traditional detergents in terms of fabrics, equipment, and the environment. Summary of the Invention

[0003] The purpose of this invention is to provide a scale-resistant commercial laundry detergent. This invention uses a combination of multiple surfactants, including sodium fatty alcohol polyoxyethylene ether sulfate, fatty alcohol polyoxyethylene ether, sodium dodecylbenzene sulfonate, and sodium cocoate, to improve detergency. It also uses a combination of polyacrylate and cellulose ether to prevent redeposition of fibrous fabrics. In addition, it introduces polyether-modified silicone oil coated with Pluronic F-127 to effectively achieve low foaming and residue. Combined with water softener and other components, it synergistically exerts the beneficial effects of anti-redeposition, high-efficiency detergency, and easy rinsing.

[0004] The objective of this invention can be achieved through the following technical solutions:

[0005] A scale-inhibiting commercial laundry detergent, wherein the raw materials of the commercial laundry detergent, by weight, include 8-12 parts fatty alcohol polyoxyethylene ether, 4-6 parts fatty alcohol polyoxyethylene ether sodium sulfate, 5-7 parts water softener, 1.5-2.5 parts cellulose ether, 2.5-3.5 parts sodium cocoate, 0.8-1.2 parts sodium chloride, 2.5-3.5 parts urea, 0.8-1.2 parts sodium hydroxide, 5-7 parts sodium dodecylbenzenesulfonate, 0.8-1.2 parts polyacrylate, 0.05-0.15 parts isothiazolinone, 0.1-0.3 parts polyether modified silicone oil, and 74.5-75.3 parts purified water.

[0006] As a preferred embodiment of the present invention, the polyether-modified silicone oil is a polyether-modified silicone oil coated with Pluronic F-127; the preparation method of the polyether-modified silicone oil coated with Pluronic F-127 includes the following steps:

[0007] A1. Pluronic F-127, polyvinylpyrrolidone, and purified water were mixed at a relatively low temperature to obtain a shell solution;

[0008] A2. Add polyether-modified silicone oil dropwise to the shell solution, shear at high speed, and then let it stand at room temperature to obtain the product.

[0009] As a preferred embodiment of the present invention, the mass ratio of Pluronic F-127, polyvinylpyrrolidone, polyether-modified silicone oil, and purified water is 0.3-0.4:0.5-0.6:0.5-0.6:5.1-5.5.

[0010] As a preferred technical solution of the present invention, the mixing at a lower temperature in step A1 refers to stirring at 100-200 rpm at 14-18°C until completely dissolved.

[0011] As a preferred embodiment of the present invention, the dripping rate in step A2 is 1-3 drops / s; the high-speed shearing refers to stirring at 8000-12000 rpm for 10-20 minutes.

[0012] As a preferred embodiment of the present invention, the method for preparing the commercial laundry detergent comprises the following steps:

[0013] B1. Add purified water to the reaction vessel, heat it, and then add urea, sodium chloride, sodium hydroxide, water softener, and isothiazolinone in sequence. Mix them to obtain a premixed aqueous phase.

[0014] B2. After adding fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene ether sodium sulfate and sodium dodecyl sulfonate to the premixed aqueous phase, stir once, then add sodium coconut oil and stir a second time to obtain material one.

[0015] B3. Add polyacrylate and cellulose ether to material one, mix, and obtain material two;

[0016] B4. Add polyether-modified silicone oil to material 2, mix, filter, and the product is obtained.

[0017] As a preferred technical solution of the present invention, the heating in step B1 refers to heating to 30-40°C; the mixing refers to stirring at 30-70 rpm until completely dissolved.

[0018] As a preferred technical solution of the present invention, the first stirring in step B2 refers to stirring at 60-100 rpm for 15-25 minutes; the second stirring refers to stirring at 80-120 rpm for 10-20 minutes.

[0019] As a preferred embodiment of the present invention, the mixing in step B3 refers to stirring at 40-80 rpm for 10-20 minutes.

[0020] As a preferred embodiment of the present invention, the mixing in step B4 refers to stirring at 30-50 rpm for 8-12 minutes.

[0021] The beneficial effects of this invention are:

[0022] (1) This invention uses a combination of multiple surfactants, including sodium fatty alcohol polyoxyethylene ether sulfate, sodium fatty alcohol polyoxyethylene ether, sodium dodecylbenzene sulfonate, and sodium cocoate, to improve detergency performance. It also uses a combination of polyacrylate and cellulose ether to achieve anti-redeposition during the treatment of fiber fabrics. On this basis, polyether-modified silicone oil coated with Pluronic F-127 is introduced to effectively achieve low foam residue. Combined with water softener and other components, it synergistically exerts the beneficial effects of anti-redeposition, efficient detergency, and easy rinsing.

[0023] (2) This invention introduces a polyether-modified silicone oil coated with Pluronic F-127. The molecular chain of Pluronic F-127 is composed of alternating hydrophilic polyethylene glycol (PEG) segments and hydrophobic polypropylene glycol (PPO) segments. When the temperature is below 18°C, the molecular chain is in an extended state and is liquid. When the temperature exceeds 18°C, the hydrophobic segments (PPO) aggregate due to hydrogen bond disruption, forming micelles and crosslinking into a three-dimensional network structure, eventually forming a semi-solid gel, which effectively encapsulates the polyether-modified silicone oil. When washing clothes with tap water, the polyether-modified silicone oil coated with Pluronic F-127 does not immediately exert a defoaming effect in the early stage of washing. As the washing shear force (stirring / rubbing) is applied, Pluronic F-127... F-127 forms a loose micelle structure, gradually releasing silicone oil. Compared to the immediate defoaming effect of traditional defoamers on detergency, this invention can effectively reduce foam residue, reduce rinsing difficulty, improve anti-redeposition performance, and maintain strong detergency. Detailed Implementation

[0024] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with embodiments, is provided below.

[0025] In all embodiments and comparative examples of this invention, fatty alcohol polyoxyethylene ether, sodium fatty alcohol polyoxyethylene ether sulfate, water softener (i.e., tetrasodium ethylenediaminetetraacetate), sodium dodecylbenzenesulfonate, and isothiazolinone were purchased from Pande (Shanghai) International Trading Co., Ltd.; cellulose ether was ethyl cellulose, purchased from Jiangsu Runfeng Synthetic Technology Co., Ltd.; sodium cocoate was purchased from Wuhan Jiyesheng Chemical Co., Ltd.; sodium chloride, urea, sodium hydroxide, Pluronic F-127, and polyvinylpyrrolidone were purchased from Sigma-Aldrich (Shanghai) Trading Co., Ltd.; polyacrylate was sodium polyacrylate, purchased from Wuhan Chengtian Fine Chemical Co., Ltd.; and polyether-modified silicone oil was purchased from Shandong Xiangzhao New Material Co., Ltd.

[0026] Example 1

[0027] A scale-inhibiting commercial laundry detergent, wherein the raw materials of the commercial laundry detergent, by weight, include 8 parts fatty alcohol polyoxyethylene ether, 4 parts fatty alcohol polyoxyethylene ether sodium sulfate, 5 parts water softener, 1.5 parts cellulose ether, 2.5 parts sodium coconut oil, 0.8 parts sodium chloride, 2.5 parts urea, 0.8 parts sodium hydroxide, 5 parts sodium dodecylbenzene sulfonate, 0.8 parts polyacrylate, 0.05 parts isothiazolinone, 0.1 parts polyether modified silicone oil, and 74.5 parts purified water.

[0028] The polyether-modified silicone oil is a polyether-modified silicone oil coated with Pluronic F-127; the preparation method of the polyether-modified silicone oil coated with Pluronic F-127 includes the following steps:

[0029] A1. Pluronic F-127, polyvinylpyrrolidone, and purified water were mixed at a relatively low temperature to obtain a shell solution;

[0030] A2. Add polyether-modified silicone oil dropwise to the shell solution, shear at high speed, and then let it stand at room temperature to obtain the product.

[0031] The mass ratio of Pluronic F-127, polyvinylpyrrolidone, polyether-modified silicone oil, and purified water is 0.3:0.5:0.5:5.1.

[0032] The mixing at a lower temperature mentioned in step A1 refers to stirring at 100 rpm at 14°C until completely dissolved.

[0033] The dripping rate in step A2 is 1 drop / s; the high-speed shear refers to stirring at 8000 rpm for 10 minutes.

[0034] The preparation method of the commercial laundry detergent includes the following steps:

[0035] B1. Add purified water to the reaction vessel, heat it, and then add urea, sodium chloride, sodium hydroxide, water softener, and isothiazolinone in sequence. Mix them to obtain a premixed aqueous phase.

[0036] B2. After adding fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene ether sodium sulfate and sodium dodecyl sulfonate to the premixed aqueous phase, stir once, then add sodium coconut oil and stir a second time to obtain material one.

[0037] B3. Add polyacrylate and cellulose ether to material one, mix, and obtain material two;

[0038] B4. Add polyether-modified silicone oil to material 2, mix, filter, and the product is obtained.

[0039] The heating mentioned in step B1 refers to heating to 30°C; mixing refers to stirring at 30 rpm until completely dissolved.

[0040] The first stirring mentioned in step B2 refers to stirring at 60 rpm for 15 minutes; the second stirring refers to stirring at 80 rpm for 10 minutes.

[0041] The mixing mentioned in step B3 refers to stirring at 40 rpm for 10 minutes.

[0042] The mixing mentioned in step B4 refers to stirring at 30 rpm for 8 minutes.

[0043] Example 2

[0044] A scale-inhibiting commercial laundry detergent, wherein the raw materials of the commercial laundry detergent, by weight, include 9 parts fatty alcohol polyoxyethylene ether, 4.5 parts fatty alcohol polyoxyethylene ether sodium sulfate, 5.5 parts water softener, 1.8 parts cellulose ether, 2.8 parts sodium coconut oil, 0.9 parts sodium chloride, 2.8 parts urea, 0.9 parts sodium hydroxide, 5.5 parts sodium dodecylbenzene sulfonate, 0.9 parts polyacrylate, 0.08 parts isothiazolinone, 0.15 parts polyether modified silicone oil, and 74.7 parts purified water.

[0045] The polyether-modified silicone oil is a polyether-modified silicone oil coated with Pluronic F-127; the preparation method of the polyether-modified silicone oil coated with Pluronic F-127 includes the following steps:

[0046] A1. Pluronic F-127, polyvinylpyrrolidone, and purified water were mixed at a relatively low temperature to obtain a shell solution;

[0047] A2. Add polyether-modified silicone oil dropwise to the shell solution, shear at high speed, and then let it stand at room temperature to obtain the product.

[0048] The mass ratio of Pluronic F-127, polyvinylpyrrolidone, polyether-modified silicone oil, and purified water is 0.33:0.52:0.52:5.2.

[0049] The mixing at a lower temperature mentioned in step A1 refers to stirring at 120 rpm at 15°C until completely dissolved.

[0050] The dripping rate in step A2 is 1 drop / s; the high-speed shear refers to stirring at 9000 rpm for 13 minutes.

[0051] The preparation method of the commercial laundry detergent includes the following steps:

[0052] B1. Add purified water to the reaction vessel, heat it, and then add urea, sodium chloride, sodium hydroxide, water softener, and isothiazolinone in sequence. Mix them to obtain a premixed aqueous phase.

[0053] B2. After adding fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene ether sodium sulfate and sodium dodecyl sulfonate to the premixed aqueous phase, stir once, then add sodium coconut oil and stir a second time to obtain material one.

[0054] B3. Add polyacrylate and cellulose ether to material one, mix, and obtain material two;

[0055] B4. Add polyether-modified silicone oil to material 2, mix, filter, and the product is obtained.

[0056] The heating mentioned in step B1 refers to heating to 32°C; mixing refers to stirring at 40 rpm until completely dissolved.

[0057] The first stirring mentioned in step B2 refers to stirring at 70 rpm for 18 minutes; the second stirring refers to stirring at 90 rpm for 12 minutes.

[0058] The mixing mentioned in step B3 refers to stirring at 50 rpm for 12 minutes.

[0059] The mixing mentioned in step B4 refers to stirring at 35 rpm for 9 minutes.

[0060] Example 3

[0061] A scale-inhibiting commercial laundry detergent, wherein the raw materials of the commercial laundry detergent, by weight, include 10 parts fatty alcohol polyoxyethylene ether, 5 parts fatty alcohol polyoxyethylene ether sodium sulfate, 6 parts water softener, 2 parts cellulose ether, 3 parts sodium coconut oil, 1 part sodium chloride, 3 parts urea, 1 part sodium hydroxide, 6 parts sodium dodecylbenzene sulfonate, 1 part polyacrylate, 0.1 parts isothiazolinone, 0.2 parts polyether modified silicone oil, and 74.9 parts purified water.

[0062] The polyether-modified silicone oil is a polyether-modified silicone oil coated with Pluronic F-127; the preparation method of the polyether-modified silicone oil coated with Pluronic F-127 includes the following steps:

[0063] A1. Pluronic F-127, polyvinylpyrrolidone, and purified water were mixed at a relatively low temperature to obtain a shell solution;

[0064] A2. Add polyether-modified silicone oil dropwise to the shell solution, shear at high speed, and then let it stand at room temperature to obtain the product.

[0065] The mass ratio of Pluronic F-127, polyvinylpyrrolidone, polyether-modified silicone oil, and purified water is 0.35:0.55:0.55:5.3.

[0066] The mixing at a lower temperature mentioned in step A1 refers to stirring at 150 rpm at 16°C until completely dissolved.

[0067] The dripping rate in step A2 is 2 drops / s; the high-speed shear refers to stirring at 10,000 rpm for 15 minutes.

[0068] The preparation method of the commercial laundry detergent includes the following steps:

[0069] B1. Add purified water to the reaction vessel, heat it, and then add urea, sodium chloride, sodium hydroxide, water softener, and isothiazolinone in sequence. Mix them to obtain a premixed aqueous phase.

[0070] B2. After adding fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene ether sodium sulfate and sodium dodecyl sulfonate to the premixed aqueous phase, stir once, then add sodium coconut oil and stir a second time to obtain material one.

[0071] B3. Add polyacrylate and cellulose ether to material one, mix, and obtain material two;

[0072] B4. Add polyether-modified silicone oil to material 2, mix, filter, and the product is obtained.

[0073] The heating mentioned in step B1 refers to heating to 35°C; mixing refers to stirring at 500 rpm until completely dissolved.

[0074] The first stirring mentioned in step B2 refers to stirring at 80 rpm for 20 minutes; the second stirring refers to stirring at 100 rpm for 15 minutes.

[0075] The mixing mentioned in step B3 refers to stirring at 60 rpm for 15 minutes.

[0076] The mixing mentioned in step B4 refers to stirring at 40 rpm for 10 minutes.

[0077] Example 4

[0078] A scale-inhibiting commercial laundry detergent, wherein the raw materials of the commercial laundry detergent, by weight, include 11 parts fatty alcohol polyoxyethylene ether, 5.5 parts fatty alcohol polyoxyethylene ether sodium sulfate, 6.5 parts water softener, 2.2 parts cellulose ether, 3.2 parts sodium coconut oil, 1.1 parts sodium chloride, 3.2 parts urea, 1.1 parts sodium hydroxide, 6.5 parts sodium dodecylbenzene sulfonate, 1.1 parts polyacrylate, 0.12 parts isothiazolinone, 0.25 parts polyether modified silicone oil, and 75.1 parts purified water.

[0079] The polyether-modified silicone oil is a polyether-modified silicone oil coated with Pluronic F-127; the preparation method of the polyether-modified silicone oil coated with Pluronic F-127 includes the following steps:

[0080] A1. Pluronic F-127, polyvinylpyrrolidone, and purified water were mixed at a relatively low temperature to obtain a shell solution;

[0081] A2. Add polyether-modified silicone oil dropwise to the shell solution, shear at high speed, and then let it stand at room temperature to obtain the product.

[0082] The mass ratio of Pluronic F-127, polyvinylpyrrolidone, polyether-modified silicone oil, and purified water is 0.7:0.58:0.58:5.4.

[0083] The mixing at a lower temperature mentioned in step A1 refers to stirring at 180 rpm at 17°C until completely dissolved.

[0084] The dripping rate in step A2 is 3 drops / s; the high-speed shear refers to stirring at 11000 rpm for 18 minutes.

[0085] The preparation method of the commercial laundry detergent includes the following steps:

[0086] B1. Add purified water to the reaction vessel, heat it, and then add urea, sodium chloride, sodium hydroxide, water softener, and isothiazolinone in sequence. Mix them to obtain a premixed aqueous phase.

[0087] B2. After adding fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene ether sodium sulfate and sodium dodecyl sulfonate to the premixed aqueous phase, stir once, then add sodium coconut oil and stir a second time to obtain material one.

[0088] B3. Add polyacrylate and cellulose ether to material one, mix, and obtain material two;

[0089] B4. Add polyether-modified silicone oil to material 2, mix, filter, and the product is obtained.

[0090] The heating mentioned in step B1 refers to heating to 38°C; mixing refers to stirring at 60 rpm until completely dissolved.

[0091] The first stirring mentioned in step B2 refers to stirring at 90 rpm for 22 minutes; the second stirring refers to stirring at 110 rpm for 18 minutes.

[0092] The mixing mentioned in step B3 refers to stirring at 70 rpm for 18 minutes.

[0093] The mixing described in step B4 refers to stirring at 45 rpm for 11 minutes.

[0094] Example 5

[0095] A scale-inhibiting commercial laundry detergent, wherein the raw materials of the commercial laundry detergent, by weight, include 12 parts fatty alcohol polyoxyethylene ether, 6 parts fatty alcohol polyoxyethylene ether sodium sulfate, 7 parts water softener, 2.5 parts cellulose ether, 3.5 parts sodium coconut oil, 1.2 parts sodium chloride, 3.5 parts urea, 1.2 parts sodium hydroxide, 7 parts sodium dodecylbenzene sulfonate, 1.2 parts polyacrylate, 0.15 parts isothiazolinone, 0.3 parts polyether modified silicone oil, and 75.3 parts purified water.

[0096] The polyether-modified silicone oil is a polyether-modified silicone oil coated with Pluronic F-127; the preparation method of the polyether-modified silicone oil coated with Pluronic F-127 includes the following steps:

[0097] A1. Pluronic F-127, polyvinylpyrrolidone, and purified water were mixed at a relatively low temperature to obtain a shell solution;

[0098] A2. Add polyether-modified silicone oil dropwise to the shell solution, shear at high speed, and then let it stand at room temperature to obtain the product.

[0099] The mass ratio of Pluronic F-127, polyvinylpyrrolidone, polyether-modified silicone oil, and purified water is 0.4:0.6:0.6:5.5.

[0100] The mixing at a lower temperature mentioned in step A1 refers to stirring at 200 rpm at 18°C ​​until completely dissolved.

[0101] The dripping rate in step A2 is 3 drops / s; the high-speed shear refers to stirring at 12000 rpm for 20 minutes.

[0102] The preparation method of the commercial laundry detergent includes the following steps:

[0103] B1. Add purified water to the reaction vessel, heat it, and then add urea, sodium chloride, sodium hydroxide, water softener, and isothiazolinone in sequence. Mix them to obtain a premixed aqueous phase.

[0104] B2. After adding fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene ether sodium sulfate and sodium dodecyl sulfonate to the premixed aqueous phase, stir once, then add sodium coconut oil and stir a second time to obtain material one.

[0105] B3. Add polyacrylate and cellulose ether to material one, mix, and obtain material two;

[0106] B4. Add polyether-modified silicone oil to material 2, mix, filter, and the product is obtained.

[0107] The heating mentioned in step B1 refers to heating to 40°C; mixing refers to stirring at 70 rpm until completely dissolved.

[0108] The first stirring mentioned in step B2 refers to stirring at 100 rpm for 25 minutes; the second stirring refers to stirring at 120 rpm for 20 minutes.

[0109] The mixing mentioned in step B3 refers to stirring at 80 rpm for 20 minutes.

[0110] The mixing described in step B4 refers to stirring at 50 rpm for 12 minutes.

[0111] Example 6

[0112] Based on Example 3, the fatty alcohol polyoxyethylene ether was removed and replaced with an equal weight of sodium fatty alcohol polyoxyethylene ether sulfate, while other conditions remained unchanged.

[0113] Example 7

[0114] Based on Example 3, sodium fatty alcohol polyoxyethylene ether sulfate was removed and replaced with an equal weight of sodium cocoate, while other conditions remained unchanged.

[0115] Example 8

[0116] Based on Example 3, sodium cocoate was removed and replaced with an equal weight of sodium dodecylbenzenesulfonate, while other conditions remained unchanged.

[0117] Example 9

[0118] Based on Example 3, sodium dodecylbenzenesulfonate was removed and replaced with an equal weight of cellulose ether, while other conditions remained unchanged.

[0119] Example 10

[0120] Based on Example 3, the cellulose ether was removed and replaced with an equal weight of polyacrylate, while other conditions remained unchanged.

[0121] Example 11

[0122] Based on Example 3, polyacrylate was removed and replaced with an equal weight of polyether-modified silicone oil, while other conditions remained unchanged.

[0123] Example 12

[0124] Based on Example 3, the polyether-modified silicone oil was removed and replaced with an equal weight of fatty alcohol polyoxyethylene ether, while other conditions remained unchanged.

[0125] Comparative Example 1

[0126] Based on Example 3, the polyether-modified silicone oil was not coated, and other conditions remained unchanged.

[0127] Comparative Example 2

[0128] Based on Example 3, polyvinylpyrrolidone in step A1 was removed and replaced with an equal weight of Pluronic F-127, while other conditions remained unchanged.

[0129] Comparative Example 3

[0130] Based on Example 3, with other conditions remaining unchanged, the preparation method of commercial laundry detergent includes the following steps:

[0131] B1. Add purified water to the reaction vessel, heat it, and then add urea, sodium chloride, sodium hydroxide, water softener, and isothiazolinone in sequence. Mix them to obtain a premixed aqueous phase.

[0132] B2. After adding fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene ether sodium sulfate and sodium dodecyl sulfonate to the premixed aqueous phase, stir once, then add sodium coconut oil and stir a second time to obtain material one.

[0133] B3. Add polyacrylate and cellulose ether to material 1, mix, filter, and obtain the final product.

[0134] Comparative Example 4

[0135] Based on Example 3, with other conditions remaining unchanged, the preparation method of commercial laundry detergent includes the following steps:

[0136] B1. Add purified water to the reaction vessel, heat it, and then add urea, sodium chloride, sodium hydroxide, water softener, and isothiazolinone in sequence. Mix them to obtain a premixed aqueous phase.

[0137] B2. Add fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene ether sodium sulfate, sodium dodecyl sulfonate and sodium cocoate to the premixed aqueous phase, and stir at 80 rpm for 35 min to obtain material one.

[0138] B3. Add polyacrylate and cellulose ether to material one, mix, and obtain material two;

[0139] B4. Add polyether-modified silicone oil to material 2, mix, filter, and the product is obtained.

[0140] Comparative Example 5

[0141] Based on Example 3, with other conditions remaining unchanged, the preparation method of commercial laundry detergent includes the following steps:

[0142] B1. Add purified water to the reaction vessel, heat, and then add urea, sodium chloride, sodium hydroxide, fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene ether sodium sulfate, sodium dodecyl sulfonate, sodium cocoate, polyacrylate, cellulose ether, and polyether modified silicone oil in sequence. Stir at 500 rpm for 60 min, filter, and the product is obtained.

[0143] 1. Anti-redeposition effect test

[0144] Commercial laundry detergents prepared in Examples 1-12 and Comparative Examples 1-4 were used as samples. According to GB / T 13174-2008, the samples were added and subjected to national standard cleaning processes JB-01, JB-02, and JB-03. After washing, the soiled cloth was removed, and yellow clay, animal oil, and vegetable oil were added. The cloth was then placed in the solution for cyclic washing. After one hour of washing, the cloth was removed, dried, and its whiteness value was measured using a whiteness meter. The values ​​are recorded in Table 1 below. The whiteness value reflects the sample's resistance to redeposition; a higher whiteness value indicates better resistance to redeposition.

[0145] Table 1 Results of anti-redeposition test

[0146]

[0147] As shown in Table 1, the scale-resistant commercial laundry detergent prepared by the present invention has a good effect on maintaining the whiteness value of white cloth, that is, it has good anti-redeposition performance.

[0148] 2. Detergent test

[0149] Using national standard carbon black, national standard protein, and national standard sebum-stained cloth, commercial laundry detergents prepared in Examples 1-12 and Comparative Examples 1-5 were used as samples. The washing process involved 250 ppm hard water, a washing concentration of 2 g / L, a washing time of 20 min, and a washing temperature of 30℃. A national standard RQHL type vertical stain remover was used at a speed of 60 rpm. The stain removal power of the samples was tested according to GB / T 13174-2008, and the test results are shown in Table 2 below.

[0150] Table 2 Detergency Test Results

[0151]

[0152] As shown in Table 2, the scale-resistant commercial laundry detergent prepared by this invention has good cleaning ability without heating, and is economical and practical.

[0153] 3. Foam test

[0154] Using the commercial laundry detergents prepared in Examples 1-12 and Comparative Examples 1-5 as samples, the amount of foam generated during the washing process was tested according to GB / T 13174-2008. The washing speed was 120 rpm for 20 minutes and then stopped. The amount of foam reduction at the beginning of the washing and after 10 minutes of washing was recorded. The evaluation results are shown in Table 3 below. Similarly, according to GB / T 13174-2008, during the rinsing process, after draining the water, the detergent was placed in a rinser and 1500 mL of tap water was added and rotated for 30 minutes for the first rinse. After draining the rinse water, 1500 mL of tap water was added again for the second rinse. After draining the rinse water, 1500 mL of tap water was added again. The foam performance after this second rinse was evaluated and recorded in Table 3 below. The score is 1-4 points, where 1 point means there is obvious foam residue and 4 points means there is basically no foam residue.

[0155] Table 3. Foam Performance Test Results

[0156]

[0157] As shown in Table 3, the scale-resistant commercial laundry detergent prepared by the present invention produces abundant foam during washing and leaves less foam residue during rinsing.

[0158] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A scale-resistant commercial laundry detergent, characterized in that: The raw materials of the commercial laundry detergent, by weight, include 8-12 parts fatty alcohol polyoxyethylene ether, 4-6 parts sodium fatty alcohol polyoxyethylene ether sulfate, 5-7 parts water softener, 1.5-2.5 parts cellulose ether, 2.5-3.5 parts sodium cocoate, 0.8-1.2 parts sodium chloride, 2.5-3.5 parts urea, 0.8-1.2 parts sodium hydroxide, 5-7 parts sodium dodecylbenzene sulfonate, 0.8-1.2 parts polyacrylate, 0.05-0.15 parts isothiazolinone, 0.1-0.3 parts polyether modified silicone oil, and 74.5-75.3 parts purified water; The polyether-modified silicone oil is a polyether-modified silicone oil coated with Pluronic F-127; the preparation method of the polyether-modified silicone oil coated with Pluronic F-127 includes the following steps: A1. Pluronic F-127, polyvinylpyrrolidone, and purified water were mixed at a relatively low temperature to obtain a shell solution; A2. Add polyether-modified silicone oil dropwise to the shell solution, shear at high speed, and then let it stand at room temperature to obtain the product; The mass ratio of Pluronic F-127, polyvinylpyrrolidone, polyether-modified silicone oil, and purified water is 0.3-0.4:0.5-0.6:0.5-0.6:5.1-5.

5. The mixing at a lower temperature mentioned in step A1 refers to stirring at 100-200 rpm at 14-18°C until completely dissolved; The dripping rate described in A2 is 1-3 drops / s; the high-speed shearing refers to stirring at 8000-12000 rpm for 10-20 minutes.

2. A method for preparing a scale-resistant commercial laundry detergent as described in claim 1, characterized in that: The preparation method of the commercial laundry detergent includes the following steps: B1. Add purified water to the reaction vessel, heat it, and then add urea, sodium chloride, sodium hydroxide, water softener, and isothiazolinone in sequence. Mix them to obtain a premixed aqueous phase. B2. Add fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene ether sodium sulfate, and sodium dodecylbenzene sulfonate to the premixed aqueous phase, stir once, then add sodium coconut oil, stir a second time, and obtain material one. B3. Add polyacrylate and cellulose ether to material one, mix, and obtain material two; B4. Add polyether-modified silicone oil to material 2, mix, filter, and the product is obtained.

3. The method for preparing a scale-resistant commercial laundry detergent according to claim 2, characterized in that: The heating mentioned in step B1 refers to heating to 30-40°C; mixing refers to stirring at 30-70 rpm until completely dissolved.

4. The method for preparing a scale-resistant commercial laundry detergent according to claim 2, characterized in that: The first stirring mentioned in step B2 refers to stirring at 60-100 rpm for 15-25 minutes; the second stirring refers to stirring at 80-120 rpm for 10-20 minutes.

5. The method for preparing a scale-resistant commercial laundry detergent according to claim 2, characterized in that: The mixing mentioned in step B3 refers to stirring at 40-80 rpm for 10-20 minutes.

6. The method for preparing a scale-resistant commercial laundry detergent according to claim 2, characterized in that: The mixing mentioned in step B4 refers to stirring at 30-50 rpm for 8-12 minutes.

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