A washing tablet

Abstract

The present application relates to the technical field of detergents, and specifically, to a washing tablet. It includes the following ingredients by weight: 8-34 parts of water-soluble polymers; 14-50 parts of surfactants; 0.1-50 parts of enzyme preparations; 0.1-50 parts of softener preparations; 1-10 parts of foaming agent preparations; and 0-30 parts of molding aids; wherein the enzyme preparations and softener preparations are embedded in the washing tablet in the form of solid particles. The washing tablet of the present application has a high content of enzyme preparations and softener preparations, and has obvious advantages in detergency and antistatic ability. Due to the high enzyme content, it has excellent cleaning effects on protein, milk stains, and blood stains that are difficult to remove in daily life. It is not only suitable for clothing, but also can be used in a dishwasher environment to wash tableware.

Description

Technical Field

[0001] The present application relates to the technical field of detergents, and in particular to a detergent tablet. Background Art

[0002] Solid flaky detergents (washing tablets) are increasingly favored and used by young consumers and business travel consumers due to their high effective active content, concentration, storage, transportation and portability. Although washing tablets have the above advantages, they are not very ideal in terms of cleaning power, which consumers are more concerned about, especially for protein and milk stains that are difficult to remove in daily life. Since the drying process of washing tablets evaporates the water, the water content of the product is very low, or even almost free of water, with high concentration and portability. However, due to the high temperature when drying the water, the enzyme preparations with special functions encounter high temperatures during the drying process, resulting in inactivation of activity, which greatly weakens the decontamination function and loses the original decontamination performance, making it impossible to remove protein and milk stains that are difficult to remove in daily life.

[0003] In addition, in the mode of adding liquid enzyme preparation to washing tablets in the form of spraying and smearing, because liquid enzyme preparation itself contains a large amount of moisture and organic solvent, adding too much liquid enzyme preparation will not only produce dissolution phenomenon to the washing tablets with strong water solubility itself, but also make the washing tablets sticky and soft, causing the poor storage stability problem of washing tablets. In addition, in the washing tablets containing liquid enzyme preparation, because enzyme preparation is exposed in the air and is susceptible to the influence of ambient temperature and humidity, such as high temperature and humidity. Overacid and overalkaline environment also easily make enzyme preparation deactivation. So the current enzyme-containing washing tablets have poor stability, and are difficult to show high cleaning power, and still have room for improvement.

[0004] In addition, the existing washing tablets lack softener components, and softener needs to be added separately to eliminate static electricity for clothes, which increases the complexity of washing. If the cationic softener component is directly added to the detergent, due to long-term contact with the anionic surfactant in the detergent, mutual adsorption of different charges will occur and precipitation will occur. The functions of both are reduced. Therefore, the prior art still lacks a washing tablet that incorporates a softener component and retains its decontamination and antistatic functions. Summary of the invention

[0005] In view of this, the present application provides a washing tablet and a method for preparing the washing tablet. A relatively large amount of enzyme preparation is embedded in the washing tablet according to the present invention, so that the stability of the enzyme preparation can be ensured. At the same time, a softener component is embedded in the washing tablet according to the present invention, and the effects of the softener and detergent components are not easily affected by precipitation caused by mutual adsorption.

[0006] This application provides the following technical solutions:

[0007] In a first aspect, the present application provides a detergent tablet comprising the following components in parts by weight:

[0008] 8-34 parts of water-soluble high molecular polymer;

[0009] 14-50 parts of surfactant;

[0010] Enzyme preparation 0.1-50 parts;

[0011] 0.1-50 parts of softener preparation;

[0012] 1-10 parts of a foaming agent preparation; and

[0013] Forming aid 0-30 parts;

[0014] The enzyme preparation and softener preparation are embedded in the detergent tablet in the form of solid particles.

[0015] In some embodiments, the amount of water-soluble high molecular polymer in the detergent tablet is preferably 9-33 parts, 10-32 parts, 11-31 parts, 12-30 parts, 13-29 parts, 14-28 parts, 15-27 parts, 16-26 parts, 17-25 parts, 18-24 parts, 19-23 parts, 20-22 parts or 21 parts, including any values ​​and ranges therebetween.

[0016] In some embodiments, the amount of surfactant in the detergent tablet is preferably 16-48 parts, 18-46 parts, 20-44 parts, 22-42 parts, 24-40 parts, 26-38 parts, 28-36 parts, 30-34 parts or 32-33 parts, including any values ​​and ranges therebetween.

[0017] In some embodiments, the amount of enzyme preparation in the detergent tablet is preferably 0.5-50 parts, 1-50 parts, 2-48 parts, 4-46 parts, 6-44 parts, 8-42 parts, 10-40 parts, 12-38 parts, 14-36 parts, 16-34 parts, 18-32 parts, 20-30 parts, 22-28 parts, 24-26 parts, including any values ​​and ranges therebetween.

[0018] In some embodiments, the amount of softener formulation in the detergent tablet is preferably 0.5-50 parts, 1-50 parts, 2-48 parts, 4-46 parts, 6-44 parts, 8-42 parts, 10-40 parts, 12-38 parts, 14-36 parts, 16-34 parts, 18-32 parts, 20-30 parts, 22-28 parts, 24-26 parts, including any values ​​and ranges therebetween.

[0019] In some embodiments, the amount of the foam booster formulation in the detergent tablet is preferably 2-9 parts, 3-8 parts, 4-6 parts or 5 parts, including any values ​​and ranges therebetween.

[0020] In some embodiments, the amount of the forming aid in the detergent tablet is preferably 1-28 parts, 3-26 parts, 5-24 parts, 7-22 parts, 9-20 parts, 11-18 parts, 13-16 parts or 14-15 parts, including any values ​​and ranges therebetween.

[0021] In some embodiments, the water-soluble high molecular polymer is one or more selected from the following: polyvinyl alcohol, polyvinyl pyrrolidone, gelatin, carrageenan, cross-linked polyacrylate, water-soluble polyacrylamide, polymer of vinyl acetate and vinyl alcohol, starch, dextrin, polysaccharide, cellulose, modified cellulose, microcrystalline cellulose.

[0022] In some embodiments, the water-soluble high molecular polymer includes polyvinyl alcohol (PVA), polyvinyl pyrrolidone (PVP), hydroxypropyl methylcellulose (HPMC) and / or hydroxyethyl cellulose (HEC).

[0023] In some embodiments, the polyvinyl alcohol may be unmodified or modified, such as carboxylated or sulfonated, or may be a copolymer of vinyl alcohol or vinyl ester monomers with one or more other monomers. Preferably, PVA is partially or completely alcoholized or hydrolyzed. For example, PVA may be about 40% to 100%, preferably about 50% to about 95%, and more preferably about 80% to about 92% alcoholized or hydrolyzed. It is known that the degree of hydrolysis affects the temperature at which PVA begins to dissolve in water, for example, 88% hydrolysis corresponds to a PVA solution soluble in cold (i.e., room temperature) water, while 90% and above hydrolysis corresponds to a PVA solution soluble in warm (hot) water. The average molecular weight (MW) of polyvinyl alcohol is between 20,000 and 120,000, and the average degree of polymerization (DP) is between 500 and 2,500, more preferably a polyvinyl alcohol having an average molecular weight between 25,000 and 100,000, and an average degree of polymerization (DP) between 550 and 2,000.

[0024] In some embodiments, the polyvinyl pyrrolidone (PVP) can be selected from monomer vinyl pyrrolidone, prepared by methods such as bulk polymerization and solution polymerization, and can be a homopolymer, a copolymer, and a cross-linked polymer in the form of nonionic, cationic, and anionic. Preferably, any one of nonionic and anionic, or a combination thereof. The application more preferably nonionic polyvinyl pyrrolidone. Preferably, the molecular weight is between 5000 and 1000000, and the K value is between 15 and 90, more preferably, the molecular weight is between 8000 and 400000, and the K value is a composite of nonionic polyvinyl pyrrolidone and PVA between 15 and 60.

[0025] In some embodiments, the hydroxypropyl methylcellulose (HPMC) and / or hydroxyethyl cellulose (HEC) are synthetic, semi-synthetic, inactive viscoelastic polymers. When mixed with polyvinyl alcohol, they can protect the colloid, thereby facilitating the film-forming property of polyvinyl alcohol, reducing the amount of polyvinyl alcohol used, increasing the amount of surfactant used, and improving the effective content of the product under concentrated performance, thereby achieving a good cleaning effect with a small amount of product used.

[0026] In some embodiments, the surfactant is an anionic surfactant and a nonionic surfactant, or a combination of both.

[0027] In some embodiments, the surfactant is a composition in which an anionic surfactant and a nonionic surfactant are mixed in a weight ratio of 10:1-6.

[0028] In some embodiments, the anionic surfactant can be selected from sulfate compounds obtained by sulfating olefins, such as alkylbenzene sulfonates, α-olefin sulfonates, and non-alkoxylated C6-C20 linear or branched alkyl sulfates obtained by directly sulfating fatty acids and neutralizing them with an alkali, representative examples of which include dodecylbenzene sulfonate (LAS), α-olefin sulfonate (AOS), dodecyl sulfate (SLS), secondary alkane sulfonate (SAS), and fatty acid methyl ester sulfonate (MES), and C6-C20 linear or branched alkyl alkoxylated sulfates having a weight-average alkoxylation degree in the range of 0.1 to 10, preferably C10-C16 linear or branched alkyl ethoxylated sulfates having a weight-average alkoxylation degree in the range of about 1 to about 5, such as dodecyl polyether sulfate (AES), etc., but not limited thereto.

[0029] In some embodiments, the nonionic surfactant can be selected from C6-C20 alkyl alkoxylated alcohols with a weight average alkoxylation degree in the range of 5 to 15, including fatty alcohols, isomeric alcohol polyoxyethylene ethers, polyoxyethylene ethers, alkylphenol polyoxyethylene ethers, fatty acid polyoxyethylene esters, oil ethoxylates, alkanolamides, ethylene oxide, propylene oxide, polyethers, polyol ester ethers, etc. Representative examples include fatty alcohol polyoxyethylene ethers, polyoxyethylene alkylphenyl ethers, polyoxyethylene alkyl ethers, polyoxyethylene polyoxypropylene block copolymers, polyethylene glycol fatty acid esters, polyoxyethylene sorbitan fatty acid esters, cocamide monomethylamine, cocamide dimethylamine, cocamide monoethanolamine, cocamide diethanolamine, fatty acid alkanolamides, alkyl polyglucosides, methyl polyethylene alkyl ethers, glucoside polyoxyethylene ethers, fatty acid methyl ester ethoxylates, etc., but are not limited thereto.

[0030] In some embodiments, the enzyme preparation is one or more selected from the following: protease, amylase, lipase, cellulase, mannanase, pectin lyase, papain, oxidoreductase, glycoside hydrolase.

[0031] In some embodiments, the enzyme preparation can be a commercially available solid enzyme preparation, such as immobilized concentric enzyme (Product No. DX01: a complex of protease and cellulase) from KDN Biotech Group, immobilized protease (Product No.: Careayme Premium 5000T, Product No. Celluclean 4500T), immobilized amylase (Product No. Stainzyme Plus Evity 12T), and immobilized protease Savinase series (Savinase4.0T / Savinase 6.0T / Savinase 8.0T / Savinase 12T / Savinase 24T) from Novozymes.

[0032] The enzyme preparation can be, for example, an alkaline protease-coated granule and a preparation method thereof disclosed in Chinese Patent Publication No. CN102533708A, and enzyme granules prepared from a granular enzyme composition disclosed in Chinese Patent Publication No. CN105283534A, but is not limited thereto.

[0033] In some embodiments, the particles of the enzyme preparation have an average particle size of 0.01 mm to 3.0 mm.

[0034] In some embodiments, the particles of the enzyme preparation have an average particle size of 0.05 mm-2.8 mm, 0.1 mm-2.5 mm, 0.1 mm-2.0 mm, 0.5 mm-2.0 mm, 1 mm-2.0 mm, or 1.5 mm-1.8 mm, including any values ​​and ranges therebetween, but not limited thereto.

[0035] In some embodiments, the softener formulation includes one or more of a cationic softener, an anionic softener, a nonionic softener, an amphoteric quaternary ammonium salt softener, a silicone softener, polyethylene glycol / polypropylene glycol, and a molding aid.

[0036] In some embodiments, the particles of the softener formulation have an average particle size of 0.01 mm to 3.0 mm.

[0037] In some embodiments, the particles of the softener formulation have an average particle size of 0.05 mm-2.8 mm, 0.1 mm-2.5 mm, 0.1 mm-2.0 mm, 0.5 mm-2.0 mm, 1 mm-2.0 mm, or 1.5 mm-1.8 mm, including any values ​​and ranges therebetween, but not limited thereto.

[0038] In some embodiments, the softener formulation includes a cationic softener, polyethylene glycol / polypropylene glycol, and a molding aid.

[0039] In some embodiments, the softener formulation includes a cationic softener, a silicone softener, polyethylene glycol / polypropylene glycol, and a molding aid.

[0040] In some embodiments, the softener formulation includes a cationic softener, a natural or synthetic cationic cellulose polymer softener, polyethylene glycol / polypropylene glycol and a molding aid. The cationic softener can specifically be selected from one or more of the following: alkyl dimethyl ammonium chloride, alkyl imidazoline salt, alkyl amide quaternary ammonium salt and ester quaternary ammonium salt compound. The natural or synthetic cationic cellulose polymer softener is selected from one or more of the following: guar gum hydroxypropyl trimethyl ammonium chloride, hydroxypropyl guar gum hydroxypropyl trimethyl ammonium chloride, chitosan, polyquaternium-10, polyquaternium-6, polyquaternium-7, polyquaternium-39 and polyquaternium-6. Among them, the polyquaternium series is preferably polyquaternium-10.

[0041] In some embodiments, the silicone softener is one or more selected from the group consisting of dimethylsiloxane, polydimethylsiloxane, amino-modified polysiloxane, polyether-modified silicone, aminopolyether-modified silicone, epoxy-polyether-modified polysiloxane, and linear-block polyether-modified silicone.

[0042] In some embodiments, the molding aid can be water-soluble, insoluble organic matter, inorganic salts, etc. Specifically, the molding aid is one or more selected from the following: bentonite, kaolin, sodium sulfate, neutral sodium silicate, sodium pyrophosphate, sodium borate, talc, silicon dioxide, 4A zeolite, starch, cellulose, dextrin and polysaccharides.

[0043] In some embodiments, the weight average molecular weight of the polyethylene glycol / polypropylene glycol is between 2000-20000.

[0044] In some embodiments, the weight average molecular weight of the polyethylene glycol / polypropylene glycol is 3000-20000, 4000-18000, 5000-15000, 6000-13000, 7000-12000, 8000-11000, 9000-10000, including any values ​​and ranges therebetween.

[0045] In some embodiments, the softener formulation includes the following ingredients in parts by weight:

[0046] 3-60 parts of polyethylene glycol / polypropylene glycol;

[0047] Cationic softener 1-60 parts;

[0048] Or / and 1-10 parts of silicone softener;

[0049] 1-90 parts of bentonite;

[0050] 1-50 parts of starch; and

[0051] Dextrin 1-10.

[0052] In some embodiments, fluidized bed spray drying, pressure spray drying, air flow spray drying, vertical scraper film drying, turbulent tube drying, horizontal scraper film flash drying, and drum drying processes can be used for preparation, but are not limited thereto.

[0053] In some embodiments, the foaming agent preparation is selected from a mixture of anionic surfactants, zwitterionic surfactants, nonionic surfactants and water. Specifically, the foaming agent preparation is a mixture of at least one of potassium lauryl alcohol, TEA dodecylbenzene sulfonate, sodium lauryl alcohol polyether sulfate, triethanolamine salt of polyoxyethylene alkyl ether phosphate, alkyl glycosides with carbon chains distributed between C8-C16, C10-C16 alkanolamides, fatty acid monoethanolamide and diethanolamide, alkyl dimethyl amine oxide, alkyl acyl propyl betaine, cocamidopropyl hydroxysulfonate, alkyl amide amphoacetate, C12-C16 olefin sulfonate and deionized water or distilled water with a conductivity of less than 10us / cm.

[0054] In some embodiments, the foam enhancer formulation comprises the following ingredients in parts by weight:

[0055] 1-4 parts of potassium lauryl alcohol;

[0056] 6-14 parts of TEA dodecylbenzenesulfonate;

[0057] 2-8 parts of C12-C16 olefin sulfonate;

[0058] 5-11 parts of polyoxyethylene alkyl ether phosphate triethanolamine salt;

[0059] 6-14 parts of alkyl glycoside;

[0060] 2-6 parts of cocamidopropyl hydroxysultaine; and

[0061] 30-90 parts of deionized water.

[0062] In some embodiments, the foam enhancer preparation can be prepared by the following method: add 60.5 parts of deionized water / distilled water into a stirring pot, and add 2.5 parts of potassium lauryl alcohol, 10 parts of TEA dodecylbenzene sulfonate, 5 parts of C12-C16 olefin sulfonate, 8 parts of polyoxyethylene alkyl ether phosphate triethanolamine salt, 10 parts of C12-C16 alkyl glucoside, and 4 parts of cocoamidopropyl hydroxysulfonate in sequence, and stir and dissolve evenly to obtain the foam enhancer preparation.

[0063] In some embodiments, the detergent tablet further comprises one or more of the following: dye inhibitors, fragrances, glycerin, propylene glycol, butylene glycol, pentylene glycol, mannitol, hydroxyethyl urea, glyceryl glucoside, tetrasodium glutamate diacetate, sodium bicarbonate, sodium iminodisuccinate, sodium polyaspartate, sodium polyepoxysuccinate, and trisodium methylglycine diacetate.

[0064] In some embodiments, the dye inhibitor is one or more selected from the following: cationic dye inhibitor, nonionic dye inhibitor and inorganic salt color fixing agent. Specifically, it is one or more selected from the following: imidazoline type, quaternary ammonium salt type, fatty polyamine derivative, inorganic salt (such as bentonite) and cellulose type cationic dye inhibitor and polyvinyl pyrrolidone, modified vinyl pyrrolidone / vinylimidazole copolymer type nonionic dye inhibitor. Preferably, it is a mixture of one or more of polyvinyl pyrrolidone and modified vinyl pyrrolidone / vinylimidazole copolymer, fatty polyamine derivative, and polyquaternary ammonium salt cellulose. More preferably, it is a combination of polyvinyl pyrrolidone and modified vinyl pyrrolidone / vinylimidazole copolymer (10:1-10).

[0065] In some embodiments, the washing tablet further comprises a foaming agent, which can be selected from inorganic foaming agents and organic foaming agents. The inorganic foaming agent can be any one of sodium carbonate and sodium bicarbonate or a mixture of the two.

[0066] In some embodiments, the enzyme preparation and softener preparation particles of the present invention may be in the shape of spheres, rods, plates, tubes, squares, rectangles, disks, stars, or regular or irregularly shaped flakes.

[0067] In a second aspect, the present application provides a method for preparing a detergent tablet, comprising the following steps:

[0068] 1) dissolving a water-soluble high molecular polymer in deionized water to prepare a film-forming sheet solution for a washing sheet;

[0069] 2) adding surfactant, foaming agent formulation components and / or molding aids in sequence, mixing evenly under stirring, heating and drying to obtain a semi-solid sheet;

[0070] 3) Distributing the enzyme preparation and softener preparation in the form of solid particles on the semi-solid sheet prepared in 2) which is continuously heated, and drying and forming the sheet to obtain the detergent sheet.

[0071] In summary, the present application includes at least one of the following beneficial technical effects:

[0072] 1. The detergent tablet of the present application has a high content of enzyme preparations and softener preparations, and has obvious advantages in detergency and anti-static ability. Due to the high enzyme content, it has excellent cleaning effect on protein, milk stains, blood stains and other stains that are difficult to remove in daily life. It is not only suitable for clothes, but also can be used in a dishwasher environment for washing dishes. Due to the high content of softener preparations, the detergent tablet of the present application can simultaneously achieve the dual effects of washing and cleaning and clothing softening.

[0073] 2. The present application utilizes the stable performance characteristics of the immobilized enzyme preparation that is not easy to volatilize. The immobilized enzyme preparation and the encapsulated softener components are added to the continuously dried detergent tablets through a mechanical device, so that the immobilized enzyme preparation and the encapsulated softener components are dried while being added in maximum amount, so that the stability of the detergent tablets is not affected by the temperature and humidity environment; the immobilized enzyme preparation and the solid-phase softener preparation are more stably adsorbed on the dry tablets, and at the same time meet the requirements of plastic-free packaging, reduce white pollution, and make the product more environmentally friendly. In addition, by adjusting the mechanical speed by frequency conversion, the amount of immobilized enzyme preparation and the encapsulated solid-phase softener preparation can be flexibly controlled, and the amount added can be flexibly set according to different washing objects, which is suitable for large-scale mass production.

[0074] 3. The foaming agent preparation and detergent ingredients are compounded to increase the volume of the slurry, reduce the density, lighten the weight, and make the internal structure of the slurry loose during the tableting process. The flaky detergent slurry can be dried quickly during tableting, thereby reducing and avoiding the effect of drying temperature on the stability of the immobilized enzyme preparation and the encapsulated solid softener preparation; at the same time, the slurry with low density, light weight and loose internal structure not only makes it easier to add a large amount of enzyme preparation components to the continuously dried slurry, but also makes the solid enzyme preparation and solid softener preparation more tightly adsorbed on the sheet after the water evaporates, and is not easy to fall off, forming a stable detergent sheet with strong detergency and softening performance.

[0075] 4. The use of foaming agent and foaming agent at the same time makes the internal structure of the slurry loose, so that the molecular chain of the water-soluble polymer forming the film is easy to break or be untied in the slurry containing water, so that the addition of auxiliary ingredients to the washing functional sheet components will not affect the stability and non-falling properties of the washing particle composition components and the solid phase softener preparation. At the same time, the addition of auxiliary agents not only helps the slurry to be dried more easily, but also reduces the moisture content of the dried washing sheet, which helps the washing sheet to increase the stability of storage due to the low moisture content.

[0076] 5. Utilizing the high molecular weight characteristics of polyethylene glycol / polypropylene glycol, polyethylene glycol / polypropylene glycol and the encapsulated cationic softener components are slowly dissolved. This avoids the mutual influence caused by electrostatic adsorption and precipitation with the strong anionic detergent components in the first washing procedure. After the tablets containing anionic detergent components and the solid-phase enzyme preparation are first dissolved to wash the clothes, polyethylene glycol / polypropylene glycol and the encapsulated cationic softener components begin to dissolve and release the cationic softener components to contact the clothes in the rinsing procedure. Not only can the residual anionic detergent on the clothes be neutralized in time, but the clothes cleaned by the detergent can also be quickly repaired by the softener. The effect of washing and cleaning, protecting and softening the clothes is truly achieved. DETAILED DESCRIPTION

[0077] The technical solution of the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. The embodiments are not intended to limit the present application but are only used to explain the present application.

[0078] Unless otherwise specified, the materials used in the examples can be obtained commercially. Where the specific operating steps, experimental conditions, instruments or devices used are not specified in the examples, those of ordinary skill in the art can perform the operations according to the conventional operating steps, experimental conditions, instruments or devices used in the art, which are within the scope of this application.

[0079] Preparation Example

[0080] Enzyme Granules

[0081] The enzyme preparations used in the examples and comparative examples of the present application are enzyme preparation A: immobilized concentric enzyme, product number DX01, which is a complex of protease and cellulase, from KDN Biotech Group, and enzyme preparation B: immobilized protease Savinase 8.0T, from Novozymes.

[0082] Preparation of softener granules

[0083] The preparation method of the softener preparation particles used in the examples and comparative examples of the present application is as follows: 40 kg of polyethylene glycol / polypropylene glycol is put into a heating and stirring pot, heated to a liquid state, 40 kg of cationic softener and 5 kg of silicone softener, 45 kg of bentonite, 25 kg of starch, and 5 kg of dextrin are added in sequence, stirred and mixed evenly, and an irregular solid softener preparation is obtained by extrusion cooling or spray drying.

[0084] Preparation of foam enhancer preparations

[0085] The preparation method of the foam enhancer preparation used in the examples and comparative examples of the present application is as follows: 60.5 kg of deionized water / distilled water is added into a stirring pot, and 2.5 kg of potassium lauryl alcohol, 10 kg of TEA dodecylbenzene sulfonate, 5 kg of C12-C16 olefin sulfonate, 8 kg of polyoxyethylene alkyl ether phosphate triethanolamine salt, 10 kg of C12-C16 alkyl glucoside, and 4 kg of cocoamidopropyl hydroxysulfonobetaine are added in sequence, and the foam enhancer preparation is obtained by stirring and dissolving evenly. Example

[0086] Example 1

[0087] This embodiment provides a washing tablet, comprising the following components:

[0088] 8kg of water-soluble high molecular polymer (specifically 6kg of PVA, 1kg of PVP and 1kg of HPMC); 14kg of surfactant (specifically 12kg of SDS and 2kg of fatty alcohol polyoxyethylene ether AEO9); 2kg of enzyme preparation; 2kg of softener preparation; 1kg of foaming agent preparation; 5kg of molding aid; 0.1kg of dye inhibitor; 1kg of tetrasodium glutamate diacetate; 0.2kg of flavor; 0.2kg of sodium bicarbonate; and 3kg of glycerol.

[0089] The preparation method of the detergent tablet of this embodiment is as follows:

[0090] 1) Dissolve 8 kg of water-soluble polymer in 50 kg of deionized water, heat to 80°C-90°C, and stir evenly to prepare a film-forming sheet solution for making detergent sheets;

[0091] 2) adding 14 kg of surfactant, 1 kg of foam enhancer preparation component, 5 kg of molding aid (specifically starch / bentonite), 0.1 kg of dye inhibitor, 1 kg of tetrasodium glutamate diacetate, 0.2 kg of flavor, 0.2 kg of sodium bicarbonate and 3 kg of glycerol in sequence, mixing evenly under stirring, heating and drying to obtain a semi-solid sheet;

[0092] 3) 2 kg of the enzyme preparation in the form of solid particles and 2 kg of the softener preparation in the form of solid particles prepared in the preparation example are distributed on the semi-solid sheet prepared in 2) which is continuously heated, and dried to form the detergent sheet.

[0093] Embodiment 2-8

[0094] According to the composition of the detergent tablets of each example in Table 1, the detergent tablets of Examples 2 to 8 were prepared according to the method disclosed in Example 1.

[0095] Comparative Examples 1-2 and 5-6

[0096] According to the composition of the detergent tablets of each comparative example in Table 2, the detergent tablets of comparative examples 1-2 and 5-6 were prepared according to the method disclosed in Example 1.

[0097] Comparative Example 3

[0098] The contents of each component in this comparative example are shown in Table 2.

[0099] The preparation method of the detergent tablet of this comparative example is as follows:

[0100] 1) Dissolve 29.5 kg of water-soluble polymer in 60 kg of deionized water, heat to 80°C-90°C, and stir evenly to prepare a film-forming sheet solution for making detergent sheets;

[0101] 2) adding 39 kg of surfactant, 1 kg of foam enhancer preparation component, 10 kg of molding aid (specifically starch / bentonite), 0.6 kg of dye inhibitor, 1 kg of tetrasodium glutamate diacetate, 0.5 kg of flavor, 0.7 kg of sodium bicarbonate and 5 kg of glycerol in sequence, mixing evenly under stirring, heating and drying to obtain a semi-solid sheet;

[0102] 3) distributing 5 kg of the softener preparation in the form of solid particles on the continuously heated semi-solid sheet, drying and forming, and demolding to obtain a solid sheet;

[0103] 4) adding 25 kg of enzyme preparation into a mixture of appropriate amounts of glycerol, propylene glycol and water to dissolve, and stirring the mixture thoroughly to obtain an enzyme preparation solution; spraying the enzyme preparation solution on a solid sheet to obtain the detergent sheet.

[0104] Comparative Example 4

[0105] The contents of each component in this comparative example are shown in Table 2.

[0106] The preparation method of the detergent tablet of this comparative example is as follows:

[0107] 1) Dissolve 29.5 kg of water-soluble polymer in 60 kg of deionized water, heat to 80°C-90°C, and stir evenly to prepare a film-forming sheet solution for making detergent sheets;

[0108] 2) Add 25 kg of enzyme preparation into water and dissolve it, stirring it thoroughly to obtain an enzyme preparation solution;

[0109] 3) adding the enzyme preparation solution prepared in 2) to the film-forming sheet solution prepared in 1), and sequentially adding 39 kg of surfactant, 1 kg of foam enhancer preparation component, 10 kg of molding aid (specifically starch / bentonite), 0.6 kg of dye inhibitor, 1 kg of tetrasodium glutamate diacetate, 0.5 kg of flavor, 0.7 kg of sodium bicarbonate and 5 kg of glycerol, stirring and mixing evenly, heating and drying to obtain a semi-solid sheet;

[0110] 3) 5 kg of a softener formulation in the form of solid particles is distributed on the semi-solid sheet prepared in 2) which is continuously heated, and dried to obtain the detergent sheet.

[0111] Comparative Example 7

[0112] The contents of each component in this comparative example are shown in Table 2.

[0113] The preparation method of the detergent tablet of this comparative example is as follows:

[0114] 1) Dissolve 29.5 kg of water-soluble polymer in 60 kg of deionized water, heat to 80°C-90°C, and stir evenly to prepare a film-forming sheet solution for making detergent sheets;

[0115] 2) adding 39 kg of surfactant, 1 kg of foam enhancer preparation component, 10 kg of molding aid (specifically starch / bentonite), 0.6 kg of dye inhibitor, 1 kg of tetrasodium glutamate diacetate, 0.5 kg of flavor, 0.7 kg of sodium bicarbonate and 5 kg of glycerol in sequence, mixing evenly under stirring, heating and drying to obtain a semi-solid sheet;

[0116] 3) distributing 25 kg of the enzyme preparation in the form of solid particles on the continuously heated semi-solid sheet, drying, forming, and demolding to obtain a solid sheet;

[0117] 4) Add 5 kg of the softener preparation into a mixture of appropriate amounts of glycerin, propylene glycol and to dissolve, and stir thoroughly to obtain a softener preparation solution; spray the softener preparation solution on the solid sheet to obtain the washing sheet.

[0118] Comparative Example 8

[0119] The contents of each component in this comparative example are shown in Table 2.

[0120] The preparation method of the detergent tablet of this comparative example is as follows:

[0121] 1) Dissolve 29.5 kg of water-soluble polymer in 60 kg of deionized water, heat to 80°C-90°C, and stir evenly to prepare a film-forming sheet solution for making detergent sheets;

[0122] 2) Add 5 kg of softener preparation into water and dissolve it, stirring it thoroughly to obtain a softener preparation solution;

[0123] 3) adding the softener preparation solution prepared in 2) to the film-forming sheet solution prepared in 1), and sequentially adding 39 kg of surfactant, 1 kg of foam enhancer preparation component, 10 kg of molding aid (specifically starch / bentonite), 0.6 kg of dye inhibitor, 1 kg of tetrasodium glutamate diacetate, 0.5 kg of flavor, 0.7 kg of sodium bicarbonate and 5 kg of glycerol, stirring and mixing evenly, heating and drying to obtain a semi-solid sheet;

[0124] 4) 25 kg of the enzyme preparation in the form of solid particles is distributed on the semi-solid sheet prepared in 2) which is continuously heated, and dried to form the detergent tablet.

[0125] Comparative Example 9

[0126] The contents of the components in this comparative example are shown in Table 2. The detergent tablet of this comparative example was prepared according to the method disclosed in Example 1.

[0127] Comparative Example 10

[0128] The contents of each component in this comparative example are shown in Table 2.

[0129] The preparation method of the detergent tablet of this comparative example is as follows:

[0130] 1) Dissolve 29.5 kg of water-soluble polymer in 60 kg of deionized water, heat to 80°C-90°C, and stir evenly to prepare a film-forming sheet solution for making detergent sheets;

[0131] 2) 39 kg of surfactant, 1 kg of foam enhancer preparation component, 10 kg of molding aid (specifically starch / bentonite), 0.6 kg of dye inhibitor, 1 kg of tetrasodium glutamate diacetate, 0.5 kg of flavor, 0.7 kg of sodium bicarbonate and 5 kg of glycerol are added in sequence, and mixed evenly under stirring. 25 kg of enzyme preparation in the form of solid particles and 25 kg of softener preparation in the form of solid particles are added in sequence, stirred evenly, and heated and dried to obtain a semi-solid sheet.

[0132] Table 1 Composition of the detergent tablets in Examples 1-8

[0133]

[0134] Table 2 Composition of the detergent tablets in Comparative Examples 1-10

[0135]

[0136] Performance testing

[0137] 1. Stability of enzyme preparation particles and softener preparation particles: Place the detergent tablet in a test environment with a temperature of (25±2)℃ and a humidity of (40±5)% for 48 hours, then pick up the detergent tablet by hand, turn it over, and rub it appropriately to observe whether the enzyme preparation particles and softener preparation particles on the detergent tablet fall off. The results are shown in Table 3.

[0138] 2. Moisture resistance stability: Two washing sheets are stacked up and placed in a test environment with a temperature of (25±2)℃ and a humidity of (85±5)% for 24 hours. Then the two washing sheets are separated and the adhesion between the sheets is observed. The adhesion phenomenon is divided into no adhesion, slight adhesion and obvious adhesion. The results are shown in Table 3.

[0139] 3. Detergent test: Based on the evaluation method of GB / T 13174-2021 "Determination of detergency and cyclic washing performance of detergents for clothing" and combined with the evaluation standard of QB / T 1224-2012 "Liquid detergents for clothing", the test concentration of standard laundry detergent is 0.2%, and the test concentration of the sample is 0.013% (the test concentration is 1 / 15 of the standard laundry detergent).

[0140] 3.1 Whiteness measurement:

[0141] Cut JB-01 dirty cloth, JB-02 dirty cloth and JB-03 dirty cloth into 6cm*6cm size and match them into six groups with similar average blackness according to their categories. Each group of test pieces is used for performance test of the same sample.

[0142] Use a whiteness meter to read the whiteness values ​​before and after washing at 457nm. The whiteness before washing is measured by taking two points on each side of the test piece (the two points on each side should be symmetrical to the center), and the average of four measurements is the whiteness before washing F1 of the test piece; the whiteness after washing is measured by taking two points on each side of the test piece (the two points on each side should be symmetrical to the center), and the average of four measurements is the whiteness after washing F2 of the test piece.

[0143] The whiteness difference (F2-F1) of each test piece before and after washing is calculated in a one-to-one correspondence manner, and the detergency is calculated for each group of test pieces. The detergency value R and the detergency ratio P of the detergent on each type of dirty cloth are determined by calculating the different types of dirty cloth test pieces separately. The method is as follows.

[0144] 3.2 Calculation of the stain removal value of dirty cloth

[0145] The decontamination value of a certain dirty cloth Ri = Σ(F2i-F1i) / n;

[0146] Where:

[0147] i——the i-th type of dirty cloth test piece;

[0148] F1i——spectral reflectance of the i-th type of dirty cloth test piece before washing, %;

[0149] F2i——spectral reflectance of the i-th type of dirty cloth test piece after washing, %;

[0150] n——effective content of each set of dirty cloth test pieces.

[0151] The result is rounded to one decimal place.

[0152] 3.3 Calculation of the dirt removal ratio of dirty cloth

[0153] The decontamination ratio of the relative standard laundry detergent on the i-th type of dirty cloth is Pi=R3i / R0i;

[0154] Where:

[0155] R0i——the stain removal value of standard laundry detergent, %;

[0156] R3i——decontamination value of the sample.

[0157] The result is rounded to one decimal place.

[0158] 3.4 Determination of detergent detergency

[0159] When Pi ≥ 1.0, the conclusion is "the sample has the same or better cleaning power for the i-th dirty cloth than the standard laundry detergent", referred to as "the cleaning power for the i-th dirty cloth is qualified";

[0160] When Pi is less than 1.0, the conclusion is that "the sample's detergency for the i-th type of dirty cloth is inferior to that of the standard laundry detergent", which is referred to as "the detergency for the i-th type of dirty cloth is unqualified".

[0161] The results are shown in Table 4.

[0162] 4. Antistatic performance test: According to QB / T 4535-2013 fabric softener standard, the antistatic property of the detergent tablet is tested, and the surface resistivity logarithm difference is measured as △lgρ s , ≥2.5 is qualified. The results are shown in Table 4.

[0163] Table 3 Test results of particle stability and moisture resistance stability of detergent tablets prepared in Examples and Comparative Examples

[0164]

[0165] Table 4 Detergency and antistatic performance test results of the detergent tablets prepared in the examples and comparative examples

[0166]

[0167] From the data in Table 4, it can be seen that with the increase of the content of the enzyme preparation, the decontamination ratios for JB-01 dirty cloth, JB-02 dirty cloth and JB-03 dirty cloth gradually increase, and the decontamination performance gradually increases. In Comparative Example 2, the enzyme preparation content is relatively large (70 kg), but the improvement in the detergency effect is not obvious compared with Example 8 (the enzyme preparation content is 50 kg). When the addition amount of the enzyme preparation is in the range of 0.1-50 kg, the detergency effect increases with the increase of the enzyme preparation content, and the detergency effect is more obvious, especially for the JB-02 dirty cloth containing more protein stains, the effect of the enzyme preparation content on the detergency is more obvious.

[0168] In comparative example 3, the enzyme preparation is added in a manner that the enzyme is prepared into a liquid, and then added to the solid washing tablet by spraying. The decontamination ratio for the JB-02 dirty cloth is only 2.52, and the decontamination ratio for the JB-02 dirty cloth of Example 1 containing equal enzyme preparation content is 3.95. It can be seen that the detergency effect is much worse than the washing tablet using the enzyme preparation in granular form. This is because the exposed liquid enzyme preparation is susceptible to the influence of ambient temperature and humidity, thereby affecting the decontamination effect. In comparative example 4, the enzyme preparation in liquid form is directly mixed with other components of the washing tablet, dried, and formed. The decontamination ratio for the JB-02 dirty cloth is only 2.21, and the decontamination ratio for the JB-02 dirty cloth of Example 1 containing equal enzyme preparation content is 3.95. It can be seen that the decontamination effect is much worse than the washing tablet using the enzyme preparation in granular form. This is because the liquid enzyme preparation is directly incorporated into the washing tablet, and the drying and forming processes of the washing tablet will inactivate a part of the enzyme, thereby impairing the decontamination power of the washing tablet.

[0169] In comparative examples 3-4, liquid enzyme preparations were incorporated, and in the stability test, obvious adhesion occurred in both the 24h moisture resistance stability and the 48h moisture resistance stability. The stability performance of the detergent tablets in Examples 1-8 was good.

[0170] From the data in Table 4, it can be seen that as the content of the softener preparation increases, the antistatic performance of the fabric washed with the detergent tablet gradually increases. In Comparative Example 6, the amount of softener particles is relatively large (70 kg), but the antistatic performance is not significantly improved compared to the addition amount of 50 kg of softener preparation in Example 7.

[0171] In Comparative Example 7, the softener is sprayed on the semi-solid detergent tablet in the form of a liquid. From the data in Table 4, it can be seen that the antistatic performance of the fabric washed using the detergent tablet of Comparative Example 7 is only 2.0. In addition, the detergency of the detergent tablet in Comparative Example 7 is significantly weaker than that of the detergent tablet containing the same amount of softener preparation in Example 1. In Comparative Example 8, the softener is directly added in the form of a liquid together with other ingredients. From the data in Table 4, it can be seen that the antistatic performance of the fabric washed using the detergent tablet of Comparative Example 8 is only 2.0, which is unqualified. In addition, the detergency of the detergent tablet in Comparative Example 8 is significantly weaker than that of the detergent tablet containing the same amount of softener preparation in Example 1. This is because the surfactants used in the embodiments of the present application are anionic and nonionic surfactants, and the softener used contains cationic surfactants. The softener preparation incorporated in the form of spraying or incorporated in the form of directly mixing with other ingredients of the detergent tablet will result in the situation where the softener preparation is directly in contact with the surfactant, and the cationic surfactant and the anionic surfactant will undergo electrostatic adsorption and precipitation, which will weaken the efficacy of both. In Example 1, the high molecular weight characteristics of polyethylene glycol / polypropylene glycol are utilized to allow polyethylene glycol / polypropylene glycol and the encapsulated cationic softener component to dissolve slowly. This avoids the mutual influence caused by electrostatic adsorption and precipitation with the strong anionic detergent component in the first washing procedure. After the tablets containing the anionic detergent component and the solid-phase enzyme preparation are first dissolved to wash the clothes, the polyethylene glycol / polypropylene glycol and the encapsulated cationic softener component begin to dissolve and release the cationic softener component to contact the clothes in the rinsing procedure. Not only can the residual anionic detergent on the clothes be neutralized in time, but the clothes cleaned by the detergent can also be quickly repaired by the softener. The effect of washing and cleaning and protecting and softening the clothes is truly achieved.

[0172] In Comparative Examples 7-8, a softener formulation in liquid form was incorporated, and in the stability test, obvious adhesion was observed in both the 24h moisture resistance stability and the 48h moisture resistance stability.

[0173] In Comparative Example 9, no foaming agent was added, and the overall structure of the detergent tablet was relatively tight and not loose enough, and a large number of enzyme preparation particles and softener particles fell off. Compared with Example 5 containing a foaming agent but with the same other components, the detergency and antistatic properties were much weaker. This is because the foaming agent can make the internal structure of the slurry loose, making it easy for the molecular chain of the water-soluble high molecular polymer forming the film to break or be untied in the slurry containing water, so that even if the auxiliary agent component is added to the detergent tablet component, it will not affect the stability and non-falling property of the detergent particle composition component and the solid phase softener preparation.

[0174] In Comparative Example 10, enzyme preparation particles and softener preparation particles are directly mixed with other components of the washing tablet to prepare a washing tablet in which enzyme preparation particles and softener preparation particles are completely embedded. The components of the washing tablet in Comparative Example 10 are exactly the same as those in Example 5, and the only difference is the position of the enzyme preparation particles and softener preparation particles in the washing tablet. In Example 5, the particles are embedded on the washing tablet, and in Comparative Example 10, the particles are uniformly embedded inside the washing tablet. It can be seen from the detergency and antistatic performance test results in Table 4 that the detergency and antistatic performance of the washing tablet in Comparative Example 10 are both poor. This is because the arrangement of the enzyme preparation particles and softener preparation particles on the surface of the washing tablet can make the particles contact with water earlier and dissolve quickly, and can quickly exert their decontamination effect and antistatic effect. In Comparative Example 10, the particles are uniformly embedded inside the washing tablet, and it is necessary to wait for the washing tablet to dissolve as a whole before releasing the enzyme preparation particles and softener preparation particles, and then the enzyme preparation particles and softener preparation particles can contact with water, and then exert their decontamination effect and antistatic effect. In the quick wash mode of the washing machine, the advantages of the setting in which the enzyme preparation particles and the softener preparation particles are embedded in the detergent sheet are more obvious.

[0175] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A washing tablet, It is characterized in that The composition comprises the following components by weight: 8-34 parts of water-soluble high molecular polymer; 14-50 parts of surfactant; Enzyme preparation 0.1-50 parts; Softener preparation 0.1-50 parts; 1-10 parts of foaming agent preparation; Forming aid 0-30 parts; wherein the enzyme preparation and softener preparation are embedded in the detergent tablet in the form of solid particles; Wherein, the softener preparation comprises the following components in parts by weight: 3-60 parts of polyethylene glycol / polypropylene glycol; Cationic softener 1-60 parts; Or / and 1-10 parts of silicone softener; 1-90 parts of bentonite; 1-50 parts of starch; 1-10 parts of dextrin; Wherein, the foam enhancer preparation comprises the following components in parts by weight: 1-4 parts of potassium lauryl alcohol; 6-14 parts of TEA dodecylbenzenesulfonate; 2-8 parts of C12-C16 olefin sulfonate; 5-11 parts of polyoxyethylene alkyl ether phosphate triethanolamine salt; 6-14 parts of alkyl glycoside; 2-6 parts of cocamidopropyl hydroxysultaine; 30-90 parts of deionized water.

2. The cleaning sheet according to claim 1, It is characterized in that The water-soluble high molecular polymer is one or more selected from the following: polyvinyl alcohol, polyvinyl pyrrolidone, gelatin, carrageenan, cross-linked polyacrylate, water-soluble polyacrylamide, polymer of vinyl acetate and vinyl alcohol, polysaccharide, cellulose.

3. The cleaning sheet according to claim 1, It is characterized in that The surfactant is one or a combination of anionic surfactant and nonionic surfactant.

4. The cleaning sheet according to claim 1, It is characterized in that The enzyme preparation is one or more selected from the following: protease, amylase, lipase, cellulase, mannanase, pectin lyase, papain, oxidoreductase, glycoside hydrolase.

5. The cleaning sheet according to claim 1, It is characterized in that The granules of the enzyme preparation have an average particle size of 0.01 mm to 3.0 mm.

6. The cleaning sheet according to claim 1, It is characterized in that The detergent tablet may further comprise one or more of the following: dye inhibitors, fragrance, glycerin, propylene glycol, butylene glycol, pentylene glycol, mannitol, hydroxyethyl urea, glyceryl glucoside, tetrasodium glutamate diacetate, sodium bicarbonate, sodium iminodisuccinate, sodium polyaspartate, sodium polyepoxysuccinate and trisodium methylglycine diacetate.

7. The cleaning sheet according to claim 1, It is characterized in that The water-soluble high molecular polymer includes polyvinyl alcohol, polyvinyl pyrrolidone and hydroxypropyl methylcellulose and / or hydroxyethyl cellulose.

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