Fabric-softening, garment-care and stain-removing detergent composition, preparation method thereof and detergent tablet

Abstract

Disclosed is a fabric-softening, garment-care and stain-removing detergent composition, a preparation method thereof and a detergent tablet. A raw materials for preparing the fabric-softening, garment-care and stain-removing detergent composition includes the following components by mass percentages: anionic surfactant: 5-30%, nonionic surfactant: 5-20%: amphoteric surfactant: 1-10%; plant polysaccharide: 10-35%; builder: 5-20%; shape promoting agent: 2-10%; softening and antistatic agent: 0.5-5%; enzymatic preparation: 0-5%; chelating agent: 0.1-5%; essence: 0-5%; and a balance of water; a mass ratio of a total surfactant to the plant polysaccharide is (0.9-5):1, a mass ratio of the anionic surfactant to the softening and antistatic agent is (3-17):1. The present application achieves the effect of producing more environmentally friendly detergent products with excellent softening and stain-removing capabilities.

Claims

1. A detergent composition, wherein a raw material for preparing the detergent composition comprises the following components by mass percentages: anionic surfactant: 5-30%; nonionic surfactant: 5-20%; amphoteric surfactant: 1-10%; plant polysaccharide: 10-35%; builder: 5-20%; shape promoting agent: 2-10%; softening and antistatic agent: 0.5-5%; enzymatic preparation: 0-5%; chelating agent: 0.1-5%; essence: 0-5%; and a balance of water; a ratio of a total mass of the anionic surfactant, the nonionic surfactant, and the amphoteric surfactant to a mass of the plant polysaccharide is (0.9-5):1, a mass ratio of the anionic surfactant to the softening and antistatic agent is (3-17):1, the softening and antistatic agent comprises a strongly cationic softening and antistatic agent and a nonionic to weakly cationic softening and antistatic agent; the strongly cationic softening and antistatic agent comprises one or more of cationic wheat protein derivatives, quaternized wheat protein, methyl sulfate [ethoxylated cocoalkyl bis(hydroxyethyl) ammonium formate], or dodecyl hydroxyethyl quaternary ammonium salt; and the nonionic to weakly cationic softening and antistatic agent comprises one or more of hydrolyzed wheat protein/silicone copolymer, or hydrolyzed wheat protein/polyvinyl pyrrolidone (PVP) copolymer.

2. The detergent composition according to claim 1, wherein a mass ratio of the strongly cationic softening and antistatic agent to the nonionic to weakly cationic softening and antistatic agent is (1-10):1.

3. The detergent composition according to claim 1, wherein the plant polysaccharide comprises one or more of hydroxypropyl starch ether, hydroxypropyl methyl cellulose, carboxymethyl chitosan, guar gum, Arabic gum, locust bean gum, cassia gum, xanthan gum, alginate, or sodium carboxymethyl cellulose.

4. The detergent composition according to claim 1, wherein the anionic surfactant comprises one or more of sodium -olefin sulfonate, sodium fatty alcohol polyoxyethylene ether sulfate, C.sub.8-C.sub.22 fatty acid salt, modified oil ethoxylated sulfonate, or fatty acid methyl ester ethoxylate sulfonate.

5. The detergent composition according to claim 1, wherein the nonionic surfactant comprises one or more of alkyl polyglucoside, coconut acid methyl ester ethoxylate, modified oil ethoxylate, secondary alcohol ethoxylate, isotridecanol ethoxylate, or polyoxyethylene-polyoxypropylene block copolymer; and the amphoteric surfactant comprises one or more of dodecyl dimethyl betaine, cocamido propyl hydroxy sulfobetaine, cocoalkyl dimethylamine oxide, or cocoalkyl bis(hydroxyethyl)amine oxide.

6. The detergent composition according to claim 1, wherein the shape promoting agent comprises a C.sub.3-C.sub.8 polyol.

7. A method for preparing the detergent composition according to claim 1, comprising the following steps: mixing the plant polysaccharide with the shape promoting agent under stirring to wet a solid powder of the plant polysaccharide with the shape promoting agent to obtain a premix; mixing the anionic surfactant with a pre-heated water, and after standing until completely dissolved into a homogeneous phase, adding the premix in batches under stirring to obtain a mixture; and adding the builder to the mixture, stirring until uniform, then adding the nonionic surfactant and the amphoteric surfactant, adding the chelating agent to adjust a value of pH to 5.5-7, then adding the softening and antistatic agent, continuing the stirring, and adding the enzymatic preparation in liquid form and the essence to obtain the detergent composition.

8. A detergent tablet, wherein the detergent tablet is produced by drying and then slicing the detergent composition according to claim 1; wherein, when the enzymatic preparation in the detergent composition is in a solid form, the enzymatic preparation is not added during preparation of the detergent composition, but is instead sprinkled onto sliced tablets.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 shows shaping conditions of pre-wash and post-wash fabrics in the cashmere washing test of Application Example 1 of the present application.

DETAILED DESCRIPTION

(2) The present application is further described in detail below with reference to FIG. 1.

Example 1

(3) A detergent composition, wherein a raw material for preparing the detergent composition included the following components by mass percentages: anionic surfactant: 30%; nonionic surfactant: 15%; amphoteric surfactant: 5%; plant polysaccharide: 11%; builder: 10%; shape promoting agent: 2.5%; strongly cationic softening and antistatic agent 4%; nonionic to weakly cationic softening and antistatic agent: 0.5%; enzymatic preparation: 1.4%; chelating agent: 0.1%; essence: 1%; and water: 19%.

(4) Specifically, the anionic surfactant included 21% of sodium C.sub.14 -olefin sulfonate and 9% modified oil ethoxylated sulfonate; the nonionic surfactant was a modified grease ethoxy compound; the amphoteric surfactant was dodecyl dimethyl betaine; the plant polysaccharide was hydroxypropyl starch ether; the builder was natural acicular silicate; the shape promoting agent was glycerol; the strongly cationic softening and antistatic agent was dodecyl hydroxyethyl quaternary ammonium salt; the nonionic to weakly cationic softening and antistatic agent was a hydrolyzed wheat protein/silicone copolymer; the enzymatic preparation was in liquid form and included 0.5% protease, 0.5% amylase and 0.4% lipase phosphodiesterase; the chelating agent was trisodium methylglycine diacetate; and the plant extract was Sapindus mukorossi extract.

(5) A method for preparing the detergent composition, which included the following steps: the plant polysaccharide was mixed with the shape promoting agent under stirring to wet a solid powder of the plant polysaccharide with the shape promoting agent to obtain a premix. the anionic surfactant was mixed with the water at 45 C., after standing until completely dissolved into a homogeneous phase, a resulting mixture was transferred to a blender, then the premix was added in batches and stirred at a speed of 1050 r/min for 20 minutes, so that the plant polysaccharide absorbed the water sufficiently and swelled to obtain a mixture, wherein a viscosity of the mixture was controlled to be 150005000 mpa.Math.S. the builder was added to the mixture and stirred until uniform; after the mixture turned from pale yellow to pure white, then the nonionic surfactant and the amphoteric surfactant were sequentially added; the chelating agent was added to adjust a value of pH to 5.5-7; then the strongly cationic softening and antistatic agent and the nonionic to weakly cationic softening and antistatic agent were added and stirred until uniform; then the enzymatic preparation, the essence and the plant extract were added; and stirring was continued to obtain the detergent composition.

Examples 2-14

(6) The difference between Examples 2-14 and Example 1 lies in that the raw materials for preparing the detergent compositions are different, specifically as shown in Tables 1 and 2.

(7) TABLE-US-00001 TABLE 1 Exam- Exam- Exam- Exam- Exam- Exam- Exam- Mass percentage/% ple 1 ple 2 ple 3 ple 4 ple 5 ple 6 ple 7 Plant polysaccharide Hydroxypropyl starch ether 11 Hydroxypropyl methylcellulose 14 Guar gum 15 Arabic gum 18 Locust bean gum 20 Cassia seed gum 25 Xanthan Gum 30 Carboxymethyl chitosan Carboxymethyl cellulose Sodium Alginate Anionic surfacant Sodium C.sub.14 -olefin sulfonate 21 2 5 Sodium fatty alcohol polyethenoxy 23 15 11 ether sulfate Modified oil ethoxylated sulfonate 9 10 15 Fatty acid methyl ester ethoxylate 21 18 sulfonate C.sub.12 fatty acid salt 10 1 5 Nonionic surfactant Alkyl polyglucoside 2 1 Coconut acid methyl ester ethoxylate 1 7 1 Modified grease ethoxy compound 15 3 1 Secondary alcohol ethoxylate 6 7 1 Isotridecanol ethoxylate 2 1 Polyoxyethylene-polyoxypropylene 10 2 1 block copolymer Amphoteric surfactant Dodecyl dimethyl betaine 5 2 Coamido propyl hydroxy 2 2 4 5 sulfobetaine Cocoalkyl dimethylamine oxide 1 Cocoalkyl bis(hydroxyethyl)amine 1 2 4 oxide Strongly cationic Cationic wheat protein derivative 1 softening and antistatic Dodecyl hydroxyethyl quaternary 4 4 1 1.5 agent ammonium salt Quaternized wheat protein 3 2 Methyl sulfate [ethoxylated 3 1 cocoalkyl bis(hydroxyethyl) ammonium formate] Nonionic to weakly Crodastat 400 0.5 1 cationic softening and Hydrolyzed wheat protein/PVP 1 0.5 0.5 0.5 antistatic agent copolymer Hydrolyzed wheat protein/silicone 0.5 0.5 1.5 0.5 copolymer Builder Plant starch 6 2 Bentonite 13 5 Silica 10 2 5 Natural phyllosilicate 10 5 Shape promoting agent Propylene glycol Glycerol 2.5 3 7 Butandiol Hexanediol 3 6 8 Isohexylene glycol Heptanediol Octanediol 5 Enzymatic preparation Anti-color-transfer enzyme 0.5 Protease 0.5 0.5 0.5 0.5 0.5 0.5 Amylase 0.5 0.3 Cellulase 0.5 Pectinase 0.5 Mannanase 0.4 Lipase 0.5 Phosphodiesterase 0.3 Chelating agent Sodium citrate 0.2 Sodium gluconate 0.1 Tetrasodium glutamate diacetate 0.4 1.5 Trisodium methylglycine diacetate 0.1 Sodium ethylenediamine disuccinate 0.1 2.5 Sodium glucoheptonate 0.2 Essence 1 1 1 Plant extract 0.5 0.5 Water 19 31 33 26.4 28 19 20 Total 100 100 100 100 100 100 100 Total surfactant: plant polysaccharide 4.55 2.79 1.93 1.94 1.60 1.40 1.17 Plant polysaccharide: shape promoting agent 4.40 4.67 5 3.60 3.33 3.13 4.29 Anionic surfactant: softening and antistatic agent 6.67 5.75 4.67 5.56 5.25 5.25 12.5 Strongly cationic softening and antistatic agent: nonionic to 8 3 8 2 3 1 3 weakly cationic softening and antistatic agent

(8) TABLE-US-00002 TABLE 2 Exam- Exam- Exam- Exam- Exam- Exam- Exam- Mass percentage/% ple 8 ple 9 ple 10 ple 11 ple 12 ple 13 ple 14 Plant Hydroxypropyl starch ether 2 4 polysaccharide Hydroxypropyl methylcellulose 2 Guar gum 2 5 Arabic gum 2 Locust bean gum 2 Cassia seed gum 2 Xanthan Gum 2 4 Carboxymethyl chitosan 34 2 Carboxymethyl cellulose 10 2 Sodium Alginate 22 3 10 15 Anionic Sodium C.sub.14 -olefin sulfonate 20 1 20.5 5 surfacant Sodium fatty alcohol polyethenoxy ether 21 1 15 sulfate Modified oil ethoxylated sulfonate 2 13 Fatty acid methyl ester ethoxylate sulfonate 3 C.sub.12 fatty acid salt 21 4 Nonionic Alkyl polyglucoside 5 2 surfactant Coconut acid methyl ester ethoxylate 10 Modified grease ethoxy compound 2 3 10 10 Secondary alcohol ethoxylate 5 Isotridecanol ethoxylate 6 2 2 Polyoxyethylene-polyoxypropylene block 2 copolymer Amphoteric Dodecyl dimethyl betaine 5 4 1 surfactant Coamido propyl hydroxy sulfobetaine 5 1 5 4 1 Cocoalkyl dimethylamine oxide 1 2 1 0.5 0.5 Cocoalkyl bis(hydroxyethyl)amine oxide 1 1 1 Strongly Cationic wheat protein derivative 1 1.5 0.5 cationic Dodecyl hydroxyethyl quaternary 4 1 1 softening ammoniumsalt and Quaternized wheat protein 1 1.5 antistatic Methyl sulfate [ethoxylated cocoalkyl 1 1 4.5 0.45 agent bis(hydroxyethyl) ammonium formate] Nonionic to Crodastat 400 0.5 weakly cationic softening Hydrolyzed wheat protein/PVP copolymer 1 0.5 0.5 0.5 and Hydrolyzed wheat protein/silicone 0.5 0.5 0.45 antistatic copolymer agent Builder Plant starch 5 8 5 Bentonite 9 2 2 2 Silica 3 2 Natural phyllosilicate 5 2 Shape Propylene glycol 2 2 promoting Glycerol 8 3 3 agent Butandiol 1 3 Hexanediol 2 4 Isohexylene glycol Heptanediol 4.5 Octanediol Enzymatic Anti-color-transfer enzyme 0.5 preparation Protease 0.5 0.5 0.5 1.5 0.5 Amylase 0.5 0.5 0.5 Cellulase 0.5 0.5 Pectinase 1.5 Mannanase 0.5 Lipase 1 0.5 0.5 Phosphodiesterase 0.5 0.5 Chelating Sodium citrate 1 4.5 agent Sodium gluconate 1 1 Tetrasodium glutamate diacetate Trisodium methylglycine diacetate 0.5 Sodium ethylenediamine disuccinate Sodium glucoheptonate 0.2 0.3 Essence 0.5 0.8 0.5 1 5 Plant extract 0.5 1 Water 12.5 27 25 26.2 32 57 47.6 Total 100 100 100 100 100 100 100 Total surfactant: plant polysaccharide 0.97 4.60 1.41 1.62 2.38 1.65 1.67 Plant polysaccharide: shape promoting agent 4.25 2.5 3.67 5.25 2.89 3.33 5.00 Anionic surfactant: softening and antistatic agent 4.89 7 4.67 5.5 4.10 5 16.6 Strongly cationic softening and antistatic agent: nonionic 8 2 8 3 9 1 1 to weakly cationic softening and antistatic agent

(9) In the above examples, the cationic wheat protein derivative was purchased from Croda Chemicals (Shanghai) Co., Ltd., with the model number Coltide Radiance; the quaternized wheat protein was purchased from Croda Chemicals (Shanghai) Co., Ltd., with the model number Coltide HQS; the methyl sulfate [ethoxylated cocoalkyl bis(hydroxyethyl) ammonium formate] was purchased from Evonik Specialty Chemicals (Shanghai) Co., Ltd., with the model number REWOQ UAT CPEM; the dodecyl hydroxyethyl quaternary ammonium salt was purchased from China Research Institute of Daily Chemical Industry, with the model number K3; the hydrolyzed wheat protein/silicone copolymer was purchased from Croda Chemicals (Shanghai) Co., Ltd., with the model number Coltide HSI; and the hydrolyzed wheat protein/PVP copolymer was purchased from Croda Chemicals (Shanghai) Co., Ltd., with the model number Coltide HPVP.

Comparative Example 1

(10) The difference from Example 3 lies in that the raw material and method for preparing the detergent composition are different, and the details are as follows: raw material: the addition amount of the plant polysaccharide was 0, and polyvinyl alcohol was newly added, and the mass percentage of polyvinyl alcohol was 15%.

(11) Preparation method: the polyvinyl alcohol was mixed with water at 90 C. until the polyvinyl alcohol swelled and fully dissolved; the chelating agent and the anionic surfactant were added, and dissolved for 15 min; then the builder, the nonionic surfactant, the amphoteric surfactant, the strongly cationic softening and antistatic agent, and the nonionic to weakly cationic softening and antistatic agent were successively added; and then the shape promoting agent, the builder, the enzymatic preparation and the essence were added to obtain the detergent composition.

Comparative Example 2

(12) The difference from Example 8 lies in that the addition amount of dodecyl hydroxyethyl quaternary ammonium salt was 8.8%, the addition amount of water was 7.7%, and the mass ratio of the anionic surfactant to the softening and antistatic agent (the strongly cationic softening and antistatic agent and the nonionic to weakly cationic softening and antistatic agent) was 2.36:1.

Comparative Example 3

(13) The difference from Example 8 lies in that the addition amount of dodecyl hydroxyethyl quaternary ammonium salt was 1.16%, the addition amount of water was 15.34%, and the mass ratio of the anionic surfactant to the softening and antistatic agent was 19:1.

Comparative Example 4

(14) The difference from Example 1 lies in that the cationic wheat protein derivative was replaced with an equal mass of tallowtrimonium chloride.

(15) Comparative Example 4 yielded a slurry containing flocculent aggregates.

Comparative Example 5

(16) The difference from Example 1 lies in that the addition amount of hydroxypropyl starch ether was 9% and the addition amount of water was 21%, a ratio of the total mass of anionic surfactant, nonionic surfactant and amphoteric surfactant to the mass of plant polysaccharide was 5.56:1.

Comparative Example 6

(17) The difference from Example 8 lies in that the addition amount of isotridecanol ethoxylate was 3%, the addition amount of cocamido propyl hydroxy sulfobetaine was 2%, and the addition amount of water was 15.5%, a ratio of the total mass of anionic surfactant, nonionic surfactant and amphoteric surfactant to the mass of plant polysaccharide was 0.79:1.

Comparative Example 7

(18) The difference from Example 1 lies in that the hydrolyzed wheat protein/silicone copolymer was omitted, and the addition amount of dodecyl hydroxyethyl quaternary ammonium salt was 4.5%.

Application Example 1

(19) A detergent tablet produced by drying and then slicing the detergent composition prepared in Example 1.

(20) The drying method is a casting method, specifically the slurry was cast and then formed through air-blowing drying equipment.

Application Examples 2-14

(21) Application Examples 2-14 differ from Application Example 1 in that the detergent tablets of Application Examples 2-14 were respectively formed by drying and then slicing the detergent compositions prepared in Examples 2-14.

(22) The detergent tablets prepared in Application Examples 1-14 all exhibit complete formation and good flexibility.

Comparative Application Examples 1-7

(23) Comparative Application Examples 1-7 differ from Application Example 1 in that the detergent tablets of Comparative Application Examples 1-7 were respectively formed by drying and then slicing the detergent compositions prepared in Comparative Examples 1-7.

(24) During the preparation of the detergent tablet in Comparative Application Example 5, the product fragmented, failing to form a continuous film or intact tablet.

(25) Performance Test

(26) The detergent tablets prepared in the Application Examples and Comparative Application Examples were subjected to the following tests.

(27) 1. Fabric stain-removing test: The detergency is determined according to GB/T 13174-2021 Determination of detergency and cycle of washing property for laundry detergents, the washing water is 250 mg/kg CaCl.sub.2 hard water, the test cloth is national standard carbon black JB-01 dirty cloth, national standard protein JB-02 dirty cloth and national standard sebum JB-03 dirty cloth. The stain-removing ratio (Pi) was determined at a sample concentration of 0.05%, with a 0.2% standard liquid detergent as a control, wherein when Pi1.0 was qualified, Pi<1.0 was unqualified, and the test results are as shown in Table 3.

(28) TABLE-US-00003 TABLE 3 National National National standard standard standard Stain-removing ratio carbon protein- sebum- General (Comparison with black-soiled soiled soiled stain- standard solution) fabric fabric fabric removing Application Example 1 1.47 1.75 1.12 4.34 Application Example 2 1.58 1.79 1.24 4.61 Application Example 3 1.57 1.73 1.17 4.47 Application Example 4 1.57 1.78 1.03 4.38 Application Example 5 1.68 1.31 1.51 4.5 Application Example 6 1.60 1.81 1.14 4.55 Application Example 7 1.67 1.85 1.12 4.64 Application Example 8 1.79 1.38 1.63 4.8 Application Example 9 1.46 1.77 1.19 4.42 Application Example 10 1.53 1.77 1.17 4.47 Application Example 11 1.48 1.39 1.54 4.41 Application Example 12 1.53 1.81 1.51 4.85 Application Example 13 1.67 1.58 1.14 4.39 Application Example 14 1.49 1.36 1.20 4.05 Comparative 1.02 1.24 0.98 3.24 Application Example 1 Comparative 1.51 1.23 1.51 4.25 Application Example 2 Comparative 1.43 1.00 0.82 3.25 Application Example 3 Comparative 1.17 1.01 0.85 3.03 Application Example 4 Comparative Failing to form an intact tablet Application Example 5 Comparative 0.99 0.98 0.92 2.89 Application Example 6 Comparative 1.34 1.57 1.02 3.93 Application Example 7

(29) It can be seen from the above test results that the detergent tablets obtained by using the plant polysaccharide to replace polyvinyl alcohol film-forming agents in the examples have superior stain-removing performance. By optimizing the mass ratio between the anionic surfactant and the softening and antistatic agent, as well as the mass ratio of total surfactants to the plant polysaccharide, maximal stain-removing efficacy is achieved.

(30) 2. Water solubility test: The test was conducted according to QB/T5779-2023 Laundry Tablets. Specifically, a 1 L beaker filled with 700 mL hard water (250 mg/kg calcium chloride) was placed in a 232 C. water bath, magnetic stirring speed was adjusted, and laundry tablets were cut into 3 cm3 cm squares, vertically dropped from 10 cm above the water surface parallel to the water. Timing began upon water contact of the laundry tablets and ceased upon complete dispersion, recording dissolution time. Tests were repeated 3 times in parallel, and the test results are as shown in Table 4.

(31) 3. Washing residue test for washing machine: four garments of different materials were prepared, a 4 g detergent tablet sample was placed in each garment or hem and secured with rubber bands, then the garments were wrapped in white fabric (two garments per fabric), and washed in a 39-minute machine cycle, then inspected for residues, and the test results are as shown in Table 4.

(32) 4. High-humidity test: The test was conducted according to QB/T5779-2023 Laundry Tablets. Specifically, a box of detergent tablets (with tablets stacked vertically inside) was placed under test environment of a temperature of 252 C. and relative humidity of 855% RH for 48 hours, and the test included 4 parallel groups. Taken out one group respectively to observe oil seepage on the paper packaging, and the test results are as shown in Table 4.

(33) TABLE-US-00004 TABLE 4 Machine High- Dissolution wash residual humidity Time/sec condition stability Application Example 1 76 No residue No oil seepage Application Example 2 72 No residue No oil seepage Application Example 3 57 No residue No oil seepage Application Example 4 54 No residue No oil seepage Application Example 5 50 No residue No oil seepage Application Example 6 57 No residue No oil seepage Application Example 7 49 No residue No oil seepage Application Example 8 43 No residue No oil seepage Application Example 9 80 No residue No oil seepage Application Example 10 63 No residue No oil seepage Application Example 11 67 No residue No oil seepage Application Example 12 70 No residue No oil seepage Application Example 13 72 No residue No oil seepage Application Example 14 68 No residue No oil seepage Comparative Application 53 No residue Minor oil seepage Example 1 Comparative Application 45 No residue Minor oil seepage Example 2 Comparative Application 49 No residue Minor oil seepage Example 3 Comparative Application 146 Residue Severe oil seepage Example 4 Comparative Application Failing to form an intact tablet Example 5 Comparative Application 233 Residue Severe oil seepage Example 6 Comparative Application 97 No residue No oil seepage Example 7

(34) It can be seen from the above test results that the detergent tablets prepared in the application examples exhibit shorter dissolution time, no washing residues, and no oil seepage in high-humidity environments.

(35) 5. Antistatic test: The test was conducted according to GB/T16801-2013 Determination of Antistatic Performance for Fabric Conditioners. Test concentration of detergent tablets to be tested was 5.0 g/L (solvent: 250 mg/L hard water), and logarithmic surface resistivity difference lgps2.5 is considered acceptable. Test polyester fabric was purchased from China National Research Institute of Daily Chemical Industry, and the test results are as shown in Table 5.

(36) 6. Fabric rewetting test: The test was conducted according to QB/T 4309-2023 Determination of Rewettability of Fabrics Softener. Test concentration of detergent tablets to be tested was 1.0 g/L (solvent: 250 mg/L of hard water). Softeners form a hydrophobic film on fiber surfaces, prolonging rewetting time. This extended rewetting time is an inherent side effect of softener efficacy, which may impair detergent wetting during subsequent washes and reduce stain-removing performance, and the test results are as shown in Table 5.

(37) 7. Fabric softness test: The test was conducted according to GB/T 8942-2016 Paper-Determination of Softness. Instrument model was DRK119 Softness Tester. Five cotton garments and cashmere fabrics were prepared separately and washed by using a 4 g detergent tablet in a 39-minute machine cycle, then air-dried and tested, and the test results are as shown in Table 5.

(38) TABLE-US-00005 TABLE 5 Antistatic Rewettability Force mN performance of (higher values Logarithmic fabric indicate lower surface Capillary softness) resistivity effect Cashmere difference lgps time/s fabric National standard 1.2 25 3339. 54.0 laundry detergent Application Example 1 5.4 34 1877.7 58.1 Application Example 2 4.4 31 2490.8 69.0 Application Example 3 4.2 35 1886.2 56.3 Application Example 4 4.5 36 2106.7 38.2 Application Example 5 4.9 34 2378.4 53.6 Application Example 6 5.3 33 2252.7 50.2 Application Example 7 3.4 28 2363.2 68.1 Application Example 8 4.7 33 1865.7 41.9 Application Example 9 4.3 30 2523.8 21.1 Application Example 4.4 34 2081.3 26.3 10 Application Example 4.1 32 2565.7 41.9 11 Application Example 3.7 40 1717.1 96.0 12 Application Example 3.5 35 2371.3 34.3 13 Application Example 3.2 32 2579.2 48.1 14 Comparative 3.0 26 2524.1 717.0 Application Example 1 Comparative 2.92 40 2604.6 723.0 Application Example 2 Comparative 2.11 45 2589.4 741.4 Application Example 3 Comparative 2.28 39 3004.6 723.0 Application Example 4 Comparative Failing to form an intact tablet Application Example 5 Comparative 3.92 94 2579.4 770.0 Application Example 6 Comparative 2.5 35 29857 648.0 Application Example 7

(39) It can be seen from the above test results that the detergent tablets prepared in the application examples simultaneously satisfy both antistatic and softening functional requirements.

(40) 8. Cashmere fabric washing test: cashmere fabrics were cut into 25 cm25 cm pieces, with each piece's template dimensions recorded. Five small cotton garments and the pre-cut cashmere fabrics were put into a drum washing machine. A 4 g detergent tablet sample was weighed and added to the drum washing machine, then the wool washing mode was started. After washing was completed, the cashmere fabrics were taken out and air-dried under ambient conditions. This washing process was repeated for 10 times, following the final drying, the dimensions of the washed cashmere were measured against the templates, the area differentials were calculated, and the results are as shown in Table 6. The test condition of Application Example 1 is as shown in FIG. 1.

(41) TABLE-US-00006 TABLE 6 Area Area before after washing/ washing/ Difference/ cm.sup.2 cm.sup.2 cm.sup.2 Condition of fabric National 645.16 571.21 73.95 Coarse surface, standard prickling laundry sense of hand, detergent (16 with evident mL) damage to wool fibers Application 637.56 618.02 19.85 Smooth surface Example Soft, soft in 1 tactile feel Application 650.25 640.60 10.25 Smooth surface Example Soft, soft in 3 tactile feel Application 642.62 636.55 6.07 Smooth surface Example Soft, soft in 8 tactile feel Comparative 655.36 620.01 35.35 Slightly rough Application surface, soft, Example and soft in tactile 1 feel

(42) It can be seen from the above test results that the detergent tablets obtained by using the plant polysaccharide to replace polyvinyl alcohol film-forming agents in the examples exhibit superior softening effects on cashmere fabrics.

(43) 9. Metal corrosion test: 304 stainless-steel sheet and 316 stainless-steel sheet were selected, the stainless-steel sheets coated with the slurry of the fabric-softening, garment-care and stain-removing detergent composition were placed on a steam pipeline, the temperature was controlled at 50 C. and 80 C. respectively to simulate the high-temperature environment of the product in the actual production process. It is ensured that the stainless-steel sheet is in sufficient contact with the heat source so that the slurry can be uniformly heated. After 24 h, each area was gently wiped with a cleaning fabric to remove residual slurry and observe for signs of corrosion, such as rust, discoloration, spots, pits, or black spots, and the results are as shown in Table 7.

(44) TABLE-US-00007 TABLE 7 50 C. 80 C. 304 316 304 316 Stainless- Stainless- Stainless- Stainless- steel steel steel steel Application All showed no abnormalities Example 3 Comparative Small black spots appeared on the surface of Application the stainless-steel sheets, indicating that the slurry Example 1 exhibits certain corrosivity to the stainless-steel sheets.

(45) This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. A person skilled in the art, after reading the present specification, would have been able to make modifications to the present embodiment as required without inventive contribution, but only within the scope of the claims of the present application are protected by the patent law.