WATER-SOLUBLE CLEANING AGENT SHEET AND PREPARATION METHOD AND APPLICATION METHOD THEREOF

Abstract

A water-soluble cleaning agent sheet includes the following components in parts by weight: 12-35 parts of film-forming agent, 0-3 parts of thickening agent, 0-10 parts of water softener, 15-50 parts of anionic surfactant, 1-10 parts of non-ionic surfactant, 1-10 parts of amphiprotic surfactant, 0-10 parts of solubilizer, 1-10 parts of acrylate polymer; 0-10 parts of plant extract, and 0-1 parts of preservative.

Claims

1. A water-soluble cleaning agent sheet, comprising the following components in parts by weight: 12-35 parts of film-forming agent, 0-3 parts of thickening agent, 0-10 parts of water softener, 15-50 parts of anionic surfactant, 1-10 parts of non-ionic surfactant, 1-10 parts of amphiprotic surfactant, 0-10 parts of solubilizer, 1-10 parts of acrylate polymer; 0-10 parts of plant extract, and 0-1 parts of preservative; wherein the anionic surfactant is one or more selected from the group consisting of alpha-olefin sulfonate, dodecylbenzene sulfonate, disodium-C-(2-cocoylethyl) ester sulfo succinate, and dodecyl sulfate; the non-ionic surfactant is one or more selected from the group consisting of alkyl glycoside, maltoside, coconut oil fatty acid diethanolamide, and cocamide methyl monoethanolamine (MEA); and the amphiprotic surfactant is one or more selected from the group consisting of N-(2-Aminoethyl)-N-(2-hydroxyethyl)--alanine-N-coconut oil derivative monosodium salt, cocoylaminopropyl betaine, dodecyldimethylamine oxide, disodium cocoyl amphoteric diacetate, and coconut fatty acid imidazoline dipropionate sodium salt.

2. The water-soluble cleaning agent sheet according to claim 1, wherein the anionic surfactant is a mixture of the dodecyl sulfate, the alpha-olefin sulfonate, and the disodium-C-(2-cocoylethyl) ester sulfo succinate; the non-ionic surfactant is a mixture of the alkyl glycoside and the cocamide methyl MEA; and the amphiprotic surfactant is a mixture of the N-(2-Aminoethyl)-N-(2-hydroxyethyl)--alanine-N-coconut oil derivative monosodium salt, the disodium cocoyl amphoteric diacetate, and the coconut fatty acid imidazoline dipropionate sodium salt.

3. The water-soluble cleaning agent sheet according to claim 1, wherein in the anionic surfactant, a mass ratio of the dodecyl sulfate, the alpha-olefin sulfonate, and the disodium-C-(2-cocoylethyl) ester sulfo succinate is (20-30):(3-8):(1-3); and in the non-ionic surfactant, a mass ratio of the alkyl glycoside to the cocamide methyl MEA is (1-3):(2-5).

4. The water-soluble cleaning agent sheet according to claim 1, wherein in the amphiprotic surfactant, a mass ratio of the N-(2-Aminoethyl)-N-(2-hydroxyethyl)--alanine-N-coconut oil derivative monosodium salt, the disodium cocoyl amphoteric diacetate, and the coconut fatty acid imidazoline dipropionate sodium salt is (1-3):(1-3):(0.1-2).

5. The water-soluble cleaning agent sheet according to claim 1, wherein the acrylate polymer is 2-6 parts in parts by weight.

6. The water-soluble cleaning agent sheet according to claim 1, wherein the film-forming agent is one or more selected from the group consisting of polyvinyl alcohol and polyvinyl alcohol crosspolymer.

7. The water-soluble cleaning agent sheet according to claim 1, wherein the solubilizer is one or more selected from the group consisting of alcohol solubilizer and ether solubilizer.

8. The water-soluble cleaning agent sheet according to claim 1, wherein the plant extract is one or more selected from the group consisting of soapberry extract and Camellia oleifera Abel extract.

9. The water-soluble cleaning agent sheet according to claim 1, wherein a mass ratio of the film-forming agent to the thickening agent is (20-26):(0.5-1.5).

10. The water-soluble cleaning agent sheet according to claim 1, wherein the thickening agent is one or more selected from the group consisting of water-soluble polymer adhesive and cellulose.

11. The water-soluble cleaning agent sheet according to claim 10, wherein the water-soluble polymer adhesive is one or more selected from the group consisting of xanthan gum, Arabic gum, guar gum, and locust bean gum.

12. The water-soluble cleaning agent sheet according to claim 10, wherein the cellulose is one or more selected from the group consisting of carboxymethyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl cellulose, and polyanionic cellulose.

13. The water-soluble cleaning agent sheet according to claim 7, wherein the alcohol solubilizer is one or more selected from the group consisting of ethanol, ethylene glycol, glycerol, propylene glycol, dipropylene glycol, isopropanol, pentanediol, butanediol, and isohexanediol.

14. The water-soluble cleaning agent sheet according to claim 7, wherein the ether solubilizer is one or more selected from the group consisting of ether, n-ether, dimethyl ether, ethylene glycol ether, and dipropylene glycol ether.

15. The water-soluble cleaning agent sheet according to claim 8, wherein the plant extract is a mixture of the soapberry extract and the Camellia oleifera Abel extract with a mass ratio of 1:(0.8-1.2).

16. The water-soluble cleaning agent sheet according to claim 1, wherein the water softener is a mixture of sodium citrate and one or more selected from the group consisting of trisodium methylglycine diacetate, tetrasodium ethylenediaminetetraacetate, sodium gluconate, dicarboxymethylalanine trisodium, and dicarboxymethylaspartate tetrasodium.

17. The water-soluble cleaning agent sheet according to claim 1, wherein the preservative is one or more selected from the group consisting of hydroxydichlorodiphenyl ether, dichlorobenzyl alcohol, methyl hydroxybenzoate, and hydroxyphenyl acetate.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0060] FIG. 1 is a picture of a water-soluble cleaning agent sheet according to Example 3 of the present application.

[0061] FIG. 2 is a picture of the state during the test 2) in Example 3 of the present application, and a test result figure of the aqueous solution of Sample 2.

[0062] FIG. 3 is a picture of the state during the test 2) in Comparative example 1 of the present application.

[0063] FIG. 4 is a picture of the state during the test 2) in Comparative example 2 of the present application.

[0064] FIG. 5 is a picture of the state during the test 2) in Comparative example 5 of the present application.

[0065] FIG. 6 is a picture of the state during the test 2) in Comparative example 6 of the present application.

[0066] FIG. 7 is a test result figure of the aqueous solution of Sample 1 of the present application.

[0067] FIG. 8 is a test result figure of the aqueous solution of Sample 3 of the present application.

DETAILED DESCRIPTION

[0068] The present application will be further described in detail below in combination with the accompanying drawings.

[0069] All the raw materials in examples and comparative examples are commercially available.

EXAMPLES

[0070] In the examples and comparative examples: [0071] the film-forming agent was polyvinyl alcohol and/or polyvinyl alcohol crosspolymer.

[0072] The thickening agent was xanthan gum, Arabic gum, hydroxyethyl cellulose, hydroxypropyl methyl cellulose or polyanionic cellulose.

[0073] The water softener was trisodium methylglycine diacetate, sodium citrate, tetrasodium ethylenediaminetetraacetate, sodium gluconate, or dicarboxymethylalanine trisodium.

[0074] The anionic surfactant was sodium dodecyl sulfate, sodium potassium dodecyl sulfate, sodium alpha-olefin sulfonate, potassium alpha-olefin sulfonate, sodium dodecyl benzene sulfonate, potassium dodecyl benzene sulfonate, or disodium-C-(2-cocoylethyl) ester sulfo succinate.

[0075] The disodium-C-(2-cocoylethyl) ester sulfo succinate was purchased from Evonik Germany with an article No. of TEGOTENS ES 501.

[0076] The non-ionic surfactant was alkyl glycoside, coconut oil fatty acid diethanolamide, or cocamide methyl MEA.

[0077] The amphiprotic surfactant was N-(2-Aminoethyl)-N-(2-hydroxyethyl)--alanine-N-coconut oil derivative monosodium salt, cocoylaminopropyl betaine, dodecyldimethylamine oxide, disodium cocoyl amphoteric diacetate, or coconut fatty acid imidazoline dipropionate sodium salt.

[0078] N-(2-Aminoethyl)-N-(2-hydroxyethyl)--alanine-N-coconut oil derivative monosodium salt was purchased from Evonik Germany with an article No. of REWOTERIC AM KSF 40.

[0079] The solubilizer was glycerol, propylene glycol, isohexanediol, dipropylene glycol butyl ether, dipropylene glycol, or pentanediol.

[0080] The acrylate polymer was acrylate polymer CrystaSense Sapphire or acrylic acid (ester) VA copolymer SF-1.

[0081] The plant extract was soapberry extract or Camellia oleifera Abel extract.

[0082] The preservative was hydroxydichlorodiphenyl ether, or dichlorobenzyl alcohol.

[0083] The selection and additive amount of the specific raw materials in the examples were shown in table 1.

Example 1

[0084] A water-soluble cleaning agent sheet included the following raw materials: film-forming agent, thickening agent, water softener, anionic surfactant, non-ionic surfactant, amphiprotic surfactant, solubilizer, acrylate polymer; plant extract, and preservative.

[0085] The selection and additive amount of the specific raw materials were shown in table 1.

[0086] The present application further provided a preparation method for the water-soluble cleaning agent sheet, adopting the following technical solution: [0087] step (1), the water was weighted, and the weight of the water was 2 times of the film-forming agent; the water and the thickening agent were added into an emulsifying pot, mixed and dissolved uniformly, and heated to 55 C.; the film-forming agent was added under uniform stirring, stirred and heated to 85 C. until the materials were totally dissolved, and the heating was stopped; [0088] step (2), the water softener, the anionic surfactant, the non-ionic surfactant, the amphiprotic surfactant and the solubilizer were added into the emulsifying pot under stirring until the materials were dissolved uniformly to obtain a mixture; [0089] step (3), the water was weighted, the weight of the water was 2 times of the acrylate polymer, and the water and acrylate polymer are mixed under uniform stirring to obtain an acrylate polymer solution; [0090] the acrylate polymer solution was added into the emulsifying pot under stirring and dissolved uniformly; [0091] step (4), the plant extract and the preservative were added into the emulsifying pot under stirring until dissolved uniformly to obtain a stable slurry; [0092] step (5), the prepared slurry was transported to a drying device through tubes and dried; and [0093] step (6), molding, demoulding and slicing were performed to obtain the water-soluble cleaning agent sheet shown as FIG. 1.

[0094] This example further provides an application method for the water-soluble cleaning agent sheet, including the following steps: diluting the sheet in water in a ratio of 1:(100-1000) to obtain a solution, adding the solution into a pressure spray can, and spraying the solution on stains for cleaning.

Examples 2-8

[0095] The water-soluble cleaning agent sheets of Examples 2-8 were same as example 1 expect that, the selection and additive amounts of the raw materials were different, as shown in table 1.

TABLE-US-00001 TABLE 1 Examples (kg) Material types Materials 1 2 3 4 5 6 7 8 Film-forming PVA-BP05 8 20 20 20 30 20 20 20 agent PVA-BP17 4 5 5 5 / 5 5 5 PVA-BP24 / / / / 5 / / / Thickening Xanthan gum 0.1 / / / / / / / agent Arabic gum 0.1 / / / / / / / Hydroxyethyl cellulose / / 1 1 2 1 1 1 Hydroxypropyl methyl 0.1 / / / / / / / cellulose Polyanionic cellulose / / / / 1 / / / Water Trisodium methylglycine / 2 2 2 2 2 2 2 softener diacetate Sodium citrate / 2 2 2 3 2 2 2 Tetrasodium / 1 1 1 3 1 1 1 ethylenediaminetetraacetate Sodium gluconate / / / / 2 / / / Dicarboxymethylalanine / 1 1 1 2 1 1 1 trisodium Anionic Sodium dodecyl sulfate 10 25 25 25 30 20 30 16 surfactant Sodium alpha-olefin 5 5 5 / 5 3 8 10 sulfonate Sodium dodecyl benzene / 2 / 5 5 / / / sulfonate Disodium-C-(2-cocoylethyl) / / 2 2 5 1 3 6 ester sulfo succinate Non-ionic Alkyl glycoside 0.5 2 2 3 5 1 3 4 surfactant Coconut oil fatty acid 0.5 3 / 2 5 / / / diethanolamide Cocamide methyl MEA / / 3 / / 2 5 1 Amphiprotic Cocoylaminopropyl 0.5 / / 2 4 / / / surfactant betaine Dodecyldimethylamine / 4 / / 1 / / / oxide Disodium cocoyl / / 2 / 2 1 3 0.1 amphoteric diacetate Coconut fatty acid / / 1 1 1 0.1 2 4.8 imidazoline dipropionate sodium salt N-(2-Aminoethyl)-N-(2- 0.5 1 2 2 2 1 3 0.1 hydroxyethyl)--alanine-N- coconut oil derivative monosodium salt Solubilizer Glycerol 0.5 1 0.1 1 2 1 1 1 Propylene glycol / / / / 2 / / / Isohexanediol 2 2 0.4 2 3 2 2 2 Dipropylene glycol butyl 0.5 2 0.4 2 3 2 2 2 ether Dipropylene glycol 0.5 / / / / / / / Pentanediol / 1 0.1 1 / 1 1 1 Acrylate Acrylate polymer 1 3 3 3 5 1.5 4.5 3 polymer CrystaSense Sapphire Acrylic acid (ester) VA / 1 1 1 5 0.5 1.5 1 copolymer SF-1 Plant extract Soapberry extract 0.5 / 2 2 5 2 2 2 Amellia oleifera extract 0.5 / 2 2 5 2 2 2 Preservative Hydroxydichlorodiphenyl 0.05 / 0.1 0.1 0.5 0.1 0.1 0.1 ether Dichlorobenzyl alcohol 0.05 / / / 0.5 / / /

COMPARATIVE EXAMPLES

Comparative Example 1

[0096] The water-soluble cleaning agent sheet in Comparative example 1 was same as that of Example 3 expect that: the non-ionic surfactant, the amphiprotic surfactant and the acrylate polymer were replaced by water.

[0097] In particular, the amounts of the non-ionic surfactant, the amphiprotic surfactant and the acrylate polymer were 0.

[0098] The anionic surfactant was a mixture of 25 kg of sodium dodecyl sulfate, 5 kg of sodium alpha-olefin sulfonate and 2 kg of sodium dodecyl benzene sulfonate.

Comparative Example 2

[0099] The water-soluble cleaning agent sheet in Comparative example 2 was same as that of Example 3 expect that: the non-ionic surfactant and the amphiprotic surfactant were replaced by water.

[0100] In particular, the amounts of the non-ionic surfactant and the amphiprotic surfactant were 0.

[0101] The anionic surfactant was a mixture of 25 kg of sodium dodecyl sulfate, 5 kg of sodium alpha-olefin sulfonate and 2 kg of sodium dodecyl benzene sulfonate.

Comparative Example 3

[0102] The water-soluble cleaning agent sheet in Comparative example 3 was same as that of Example 3 expect that: the non-ionic surfactant and acrylate polymer were replaced by water.

[0103] In particular, the amounts of the non-ionic surfactant and the acrylate polymer were 0.

[0104] The anionic surfactant was a mixture of 25 kg of sodium dodecyl sulfate, 5 kg of sodium alpha-olefin sulfonate and 2 kg of sodium dodecyl benzene sulfonate.

[0105] The amphiprotic surfactant was 2 kg of disodium cocoyl amphoteric diacetate, 1 kg of coconut fatty acid imidazoline dipropionate sodium salt, and 2 kg of N-(2-Aminoethyl)-N-(2-hydroxyethyl)--alanine-N-coconut oil derivative monosodium salt.

Comparative Example 4

[0106] The water-soluble cleaning agent sheet in Comparative example 3 was same as that of Example 3 expect that: the non-ionic surfactant was replaced by water.

[0107] In particular, the amount of the non-ionic surfactant was 0.

[0108] The anionic surfactant was a mixture of 25 kg of sodium dodecyl sulfate, 5 kg of sodium alpha-olefin sulfonate and 2 kg of sodium dodecyl benzene sulfonate.

[0109] The amphiprotic surfactant was 2 kg of disodium cocoyl amphoteric diacetate, 1 kg of coconut fatty acid imidazoline dipropionate sodium salt, and 2 kg of N-(2-Aminoethyl)-N-(2-hydroxyethyl)--alanine-N-coconut oil derivative monosodium salt.

Comparative Example 5

[0110] The water-soluble cleaning agent sheet in Comparative example 5 was same as that of Example 3 expect that: the amphiprotic surfactant and the acrylate polymer were replaced by water.

[0111] In particular, the amounts of the amphiprotic surfactant and the acrylate polymer were 0.

[0112] The anionic surfactant was a mixture of 25 kg of sodium dodecyl sulfate, 5 kg of sodium alpha-olefin sulfonate and 2 kg of sodium dodecyl benzene sulfonate.

[0113] The non-ionic surfactant was the mixture of 2 kg of alkyl glycoside and 3 kg of cocamide methyl MEA.

Comparative Example 6

[0114] The water-soluble cleaning agent sheet in Comparative example 6 was same as that of Example 3 expect that: the amphiprotic surfactant was replaced by water.

[0115] In particular, the amount of the amphiprotic surfactant was 0.

[0116] The anionic surfactant was a mixture of 25 kg of sodium dodecyl sulfate, 5 kg of sodium alpha-olefin sulfonate and 2 kg of sodium dodecyl benzene sulfonate.

[0117] The non-ionic surfactant was the mixture of 2 kg of alkyl glycoside and 3 kg of cocamide methyl MEA.

Comparative Example 7

[0118] The water-soluble cleaning agent sheet in Comparative example 7 was same as that of Example 3 expect that: [0119] the anionic surfactant was a mixture of 25 kg of sodium fatty alcoholpolyoxyethylene ether sulfate, 5 kg of sodium methyl fatty alcohol sulfonate and 2 kg of sodium fatty acid methyl ester ethoxylates sulfonate. [0120] the non-ionic surfactant was a mixture of 2 kg of fatty alcohol polyoxyethylene ether and 1 kg of isomerized alcohol alkoxylates.

[0121] The amphiprotic surfactant was a mixture of 2 kg of dodecyl dimethyl betaine, 1 kg of sodium lauroyl amphoteric acetate, and 2 kg of cocamidopropyl dimethyl betaine.

Performance Test

[0122] 1. Decontamination effect: the detergency of the sheets of Examples 1-8 and Comparative examples 1-7 were tested in accordance with the appendix A of detergency tests in QB/T 4532-2013 of Hard floor cleaner, and the detergency (%) were recorded in table 2. The larger the tested detergency, the better the decontamination effect, or else, the worse. When the detergency was greater than or equal to 90%, the sheet was qualified, or else, unqualified.

TABLE-US-00002 TABLE 2 Decontamination effect test Groups Detergency ( %) Example 1 94.9 Example 2 95.2 Example 3 99.6 Example 4 96.7 Example 5 97.6 Example 6 98.8 Example 7 99.3 Example 8 97.1 Comparative 85.5 example 1 Comparative 88.1 example 2 Comparative 86.9 example 3 Comparative 89.6 example 4 Comparative 87.8 example 5 Comparative 89.4 example 6 Comparative 94.2 example 7

[0123] Comparing the test data of Examples 1-8 and Comparative examples 1-7 in table 2, it can be seen that, the detergency of the sheets of Examples 1-8 were obviously better than that of Comparative examples 1-7.

2. Performance Test of Foam

Test 1):

[0124] 15 of 25 mL glass cups with the same size were prepared.

[0125] Each of the sheets of Examples 1-8 and Comparative examples 1-7 was mixed with water in a ratio of 1:500 to obtain the solution, which was sprayed in a 25 mL clean glass cup by a foaming bottle. The foam is sprayed until at the 25 mL scale line of the glass cup, and the excess foam on the surface was scraped off.

[0126] The glass cups filled with foam were placed on the test-bed for 5 min and 10 min, and the changes of the foam in each glass cup were observed and recorded in table 3.

Test 2):

[0127] Each of the sheets of Examples 1-8 and Comparative examples 1-7 was mixed with water in a ratio of 1:500 to obtain the solution, which was sprayed on the surfaces of the clean and vertical glass by a pressure spray can.

[0128] An area of 100 cm100 cm were drawn on the surface of the vertical glass, and a 4 cm horizontal line was drawn below the area. The foam was sprayed towards the center of the area at about 12 cm from the center of the area, and the sprayed amount was one pump (5-6 g). The time required for the foam sliding below the horizontal line from the area was recorded in table 3. A long time required represents a good retention effect, and a short time required represents a bad retention effect.

TABLE-US-00003 TABLE 3 Retention Foam amount Foam shape Foam amount Foam shape time of Groups (5 min ) (5 min) (10 min ) (10 min) foam (s) Example 1 The foam was dense, The foam was The foam was dense, The foam 1.72 and the foam slided thick, dense and the foam slided was still down to 23 mL scale and fine down to 22 mL scale thick and line line dense Example 2 The foam was dense, The foam was The foam was dense, The foam 2.10 and the foam slided thick, dense and the foam slided was still down to 23 mL scale and fine down to 21 mL scale thick and line line dense Example 3 The foam was dense, The foam was The foam was dense, The foam 3.35 and the foam slided thick, dense and the foam slided was still down to 24.5 mL scale and fine down to 24 mL scale thick and line, and had no line dense significant changes Example 4 The foam was dense, The foam was The foam was dense, The foam 2.36 and the foam slided thick, dense and the foam slided was still down to 23 mL scale and fine down to 21 mL scale thick and line line dense Example 5 The foam was dense, The foam was The foam was dense, The foam 1.45 and the foam slided thick, dense and the foam slided was still down to 23 mL scale and fine down to 20 mL scale thick and line line dense Example 6 The foam was dense, The foam was The foam was dense, The foam 3.30 and the foam slided thick, dense and the foam slided was still down to 24 mL scale and fine down to 23 mL scale thick and line line dense Example 7 The foam was dense, The foam was The foam was dense, The foam 3.48 and the foam slided thick, dense and the foam slided was still down to 24 mL scale and fine down to 22.5 mL thick and line scale line dense Example 8 The foam was dense, The foam was The foam was dense, The foam 2.79 and the foam slided thick, dense and the foam slided was still down to 22 mL scale and fine down to 21 mL scale thick and line line dense Com- The foam was sparse, The foam was The foam was The foam 0.22 parative and the foam slided sparse and sparse, and the foam was sparse, example 1 down to 15 mL scale porous slided down to 10.5 porous and line mL scale line transparent Com- The foam was sparse, The foam was The foam was The foam 0.41 parative and the foam slided sparse and sparse, and the foam was sparse, example 2 down to 17 mL scale porous slided down to 12 porous and line mL scale line transparent Com- The foam was sparse, The foam was The foam was The foam 0.30 parative and the foam slided sparse and sparse, and the foam was sparse, example 3 down to 16 mL scale porous slided down to 11 porous and line mL scale line transparent Com- The foam was sparse, The foam was The foam was The foam 0.58 parative and the foam slided sparse and sparse, and the foam was sparse, example 4 down to 17.5 mL scale porous slided down to 14 porous and line mL scale line transparent Com- The foam was sparse, The foam was The foam was The foam 0.34 parative and the foam slided sparse and sparse, and the foam was sparse, example 5 down to 17 mL scale porous slided down to 11.5 porous and line mL scale line transparent Com- The foam was sparse, The foam was The foam was The foam 0.50 parative and the foam slided sparse and sparse, and the foam was sparse, example 6 down to 18 mL scale porous slided down to 13 porous and line mL scale line transparent Com- The foam was sparse, The foam was The foam was The foam 0.62 parative and the foam slided rather sparse sparse, and the foam was sparse, example 7 down to 20 mL scale and porous slided down to 15 porous and line mL scale line transparent

[0129] From the test data in table 3, it can be seen that, the foam amount of the water-soluble cleaning agent sheets in Examples 1-8 of the present application was far greater than that of Comparative examples 1-7 after standing for 5 min and 10 min, and the foam shapes had almost no change, and were still dense, compared with the Comparative examples 1-7.

[0130] Comparing the test data of Examples 1-8 and Comparative examples 1-7 in tables 2-3, it can be seen that, the decontamination effects of the sheets of Comparative examples 1-7 were not as good as that of the sheets of Examples 1-8, further the shapes, amounts and retention times of foam of Comparative examples 1-7 were also not as good as that of the sheets of Examples 1-8. It is indicated that changing the cooperation system or components in the formula in Comparative examples 1-7 disrupted specific cooperation effects, therefore, the abundant foam long-lastingly adhered on the area to be cleaned (especially, the vertical area to be cleaned) cannot be generated.

[0131] FIG. 2 is a picture of the state during the test 2) in Example 3, FIG. 3 is a picture of the state during the test 2) in Comparative example 1, FIG. 4 is a picture of the state during the test 2) in Comparative example 2, FIG. 5 is a picture of the state during the test 2) in Comparative example 5 and FIG. 6 is a picture of the state during the test 2) in Comparative example 6.

3. Adhesion Property Test

[0132] The sheet of Example 3 was mixed with water in a ratio of 1:1000 to obtain the aqueous solution of Sample 1.

[0133] The sheet of Example 3 was mixed with water in a ratio of 1:500 to obtain the aqueous solution of Sample 2.

[0134] The sheet of Example 3 was mixed with water in a ratio of 1:250 to obtain the aqueous solution of Sample 3.

[0135] The above aqueous solutions were placed in the commercially available pressure spray cans and sprayed the cleaned vertical glass surfaces, which was observed and taken photos.

[0136] The test result of the aqueous solution of Sample 1 was shown in FIG. 7, the test result of the aqueous solution of Sample 2 was shown in FIG. 2, and the test result of the aqueous solution of Sample 3 was shown in FIG. 8.

[0137] Comparing FIGS. 2, and 7-8, the diluted water-soluble cleaning agent sheets were sprayed and adhered on the vertical and smooth surface well, and not easy to slip off immediately. The foam can be maintained in the area to be cleaned. As the diluted concentration was increased, the foam was getting denser and denser. Therefore, when it is used in daily life, the diluted concentration could be adjusted according to the polluted degree by stains, so that it can avoid waste, and is convenience and practical. In particular, the products are the solid sheets, may be packaged without plastics, are convenient for transportation and storage. When they are used again, the use of plastic spray bottles can be greatly reduced, thereby reducing waste and white pollution.

[0138] The above are the preferred embodiments of the present application, which are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.