Washing powder, preparation method thereof and control method of washing equipment

Abstract

The invention discloses washing powder and a preparation method thereof and a control method of washing equipment, powder particles of the washing powder comprise an inner core structure and one or more functional layer structures which are concentrically arranged with the inner core structure and cover the inner core structure, and the inner core structure and the functional layer structures are different in composition. When the washing powder is put into washing water, the functional layer structure located on the outer layer is dissolved firstly and then can act on a to-be-washed object after being dissolved, the functional layer structure is not interfered by undissolved core structure components in the acting process, and the efficiency can be fully exerted; after the functional layer structure is completely dissolved, the inner core structure starts to be dissolved and acts on the to-be-washed object treated by the functional layer components after being dissolved, the to-be-washed object is further treated, and in the treatment process, due to the fact that the functional layer components and the to-be-washed object are used up, the inner core structure components are not interfered by the functional layer components when playing a role. The action effect is good.

Description

Technical Field

[0001] The invention belongs to the technical field of detergents and household appliances, and in particular relates to a washing powder and a preparation method thereof, and a control method for a washing device. Background Art

[0002] With the improvement of people's living standards, people have better conditions to improve their living environment and personal hygiene. Being in a clean and tidy environment for a long time can not only promote people's health, but also make people happy physically and mentally. In addition to ensuring the cleanliness of their own bodies, people generally need to ensure the cleanliness of their clothes. Washing powder and laundry liquid are the two main laundry detergents at present. They can produce foam, remove various stains on clothes, and leave a certain fragrance, which are loved by many people.

[0003] Washing powder is relatively more cost-effective, so it is more widely used. However, many washing powders on the market are usually directly mixed with components with different functions, stirred to form a slurry, and the slurry is stirred, dried, and granulated to form washing powder particles. For example, a multifunctional washing powder is formed by mixing a decontamination component, a softener component, a bleaching component, and a fragrance component.

[0004] Although this type of laundry detergent has the functions of removing stains, softening, bleaching, and enhancing fragrance, after the laundry detergent is added to the washing water, these ingredients are almost simultaneously dissolved and dispersed in the washing water as the laundry detergent dissolves, and the components interfere with each other, resulting in the inability of each component to fully exert its maximum effect.

[0005] For example: the detersive ingredient is mainly anionic surfactants, while the softening ingredient is mainly cationic surfactants. Once the detersive ingredient and the softening ingredient are dissolved in the washing water at the same time, the detersive effect will be reduced due to the mutual interference between the anionic surfactants and the cationic surfactants.

[0006] In view of this, the present invention is proposed. Summary of the invention

[0007] The invention provides a washing powder and a preparation method thereof, so as to achieve the purpose of dissolving and releasing different components of the washing powder in steps, so that the efficiency of each component can be fully exerted.

[0008] The present invention also provides a control method for a washing device to achieve the purpose of adjusting washing parameters of the washing device according to the solubility degree of the washing powder. The washing parameters are coordinated with the components of the washing powder so that each component can act on the clothes in the washing device at a reasonable washing intensity, thereby maximizing the effect of each component on the clothes.

[0009] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0010] A washing powder, the powder particles of which comprise a core structure and one or more functional layer structures which are arranged concentrically with the core structure and coated outside the core structure, and the core structure and each functional layer structure have different components.

[0011] Furthermore, there is a slow-release membrane structure between the core structure and the functional layer structure for separating the core structure and the functional layer structure, and / or there is a slow-release membrane structure between each functional layer structure for separating each functional layer structure;

[0012] Preferably, the sustained-release membrane structure is a polyvinyl alcohol film.

[0013] Furthermore, the components of the core structure are bleaching components, and the components of the functional layer structure are decontamination components; or, the components of the core structure are softener components, and the components of each functional layer structure from inside to outside are bleaching components and decontamination components in sequence.

[0014] Furthermore, a functional layer slurry is prepared, the core structure is placed in a molding device, the prepared functional layer slurry is injected into the molding device, dried, and cooled to obtain washing powder particles.

[0015] Furthermore, the slow-release membrane structure is first coated on the outer surface of the core structure, and then the core structure coated with the slow-release membrane structure is placed in a molding device, and the prepared functional layer slurry is injected into the molding device, dried, and cooled to obtain washing powder particles;

[0016] Preferably, the sustained-release membrane structure is a polyvinyl alcohol film.

[0017] Furthermore, coating the sustained-release membrane structure outside the core structure includes: immersing the component particles constituting the core structure into a polyvinyl alcohol aqueous solution, drying, and cooling to obtain the core structure coated with the polyvinyl alcohol membrane.

[0018] Furthermore, the inner core structure of the softener component is covered with a bleaching component functional layer structure and a decontamination component functional layer structure in sequence from the inside to the outside.

[0019] Firstly, a slow-release membrane structure is coated on the outer surface of the core structure of the softener component to form a first coating body;

[0020] Then, the first coating body and the ball material of the bleaching component functional layer structure are placed in a molding device and heat-sealed and coated with a slow-release film structure to form a second coating body;

[0021] Prepare a decontamination component functional layer structure slurry, place the second coating body in a molding device, inject the prepared decontamination component functional layer structure slurry into the molding device, dry and cool, and obtain washing powder particles.

[0022] Furthermore, the preparation of the decontamination component functional layer structure slurry includes: weighing trichloroisocyanuric acid, sodium metasilicate, sodium bicarbonate, sodium hypochlorite, and magnesium silicate, putting them into 40-50°C water, stirring to dissolve, heating to 60-65°C, and then putting in sodium dodecylbenzene sulfonate and sodium carbonate to dissolve, adding sodium sulfate after dissolution, filtering, degassing, and aging to obtain the product.

[0023] The present invention also provides a control method for a washing device, wherein washing powder as described in any of the above technical solutions is added, and washing parameters corresponding to the core structural components of the washing powder and the structural components of each functional layer are preset. During the washing process, it is detected whether the core structural components are present in the washing water. If so, the washing parameters corresponding to the core structural components are executed, otherwise the washing parameters corresponding to the functional layer structural components are controlled to be executed.

[0024] Furthermore, the components of the core structure are bleaching components, the components of the functional layer structure are decontamination components, and the washing intensity of the washing parameters corresponding to the decontamination components is controlled to be greater than the washing intensity of the washing parameters corresponding to the bleaching components.

[0025] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0026] The washing machine powder particles of the present invention include a core structure and a functional layer structure which are arranged in layers. When the washing powder is put into washing water, the functional layer structure located in the outer layer dissolves first, and can act on the laundry after dissolution. During the action, it will not be interfered by the undissolved core structure components, and can give full play to its effectiveness. After the functional layer structure is completely dissolved, the core structure begins to dissolve, and after dissolution, it acts on the laundry treated by the functional layer components, and further treats the laundry. During the treatment, since the functional layer components have completely reacted with the laundry, the core structure components will not be interfered by the functional layer components when they act, and the effect is good.

[0027] In the present invention, a slow-release membrane structure is provided between the core structure and the functional layer structure, so that after the washing powder is added into the washing water, the functional layer structure first dissolves and acts on the clothes. After the functional layer structure is completely dissolved, the slow-release membrane structure protects the core structure from immediately contacting the washing water. Instead, the core structure starts to dissolve only after the slow-release membrane structure is completely dissolved, thereby reserving sufficient time for the functional layer structure to process the clothes.

[0028] In the present invention, the washing device reasonably adjusts the washing parameters according to the different components dissolved from the added washing powder, so that under the cooperation of the water flow formed by the corresponding washing parameters, the various components of the washing powder can exert their maximum efficiency and improve the treatment effect on clothes.

[0029] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0031] Figure 1 A schematic diagram of a washing powder particle of the present invention;

[0032] Figure 2 A schematic diagram of another type of washing powder particle of the present invention;

[0033] Figure 3 A schematic diagram of another type of washing powder particles of the present invention;

[0034] Figure 4 The present invention is a flow chart of the preparation method of the washing powder.

[0035] In the figure:

[0036] 1. Core structure; 2. Decontamination functional layer structure; 3. Sustained-release membrane structure; 31. First sustained-release membrane structure; 4. First coating; 5. Ball material with bleaching component functional layer structure; 32. Second sustained-release membrane structure; 6. Second coating.

[0037] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0039] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] "Washing powder" has surfactant as its main ingredient and is composed of a number of powder particles, which are used to remove dirt and stains.

[0042] like Figures 1 to 3 As shown, the present invention provides a washing powder, the powder particles of the washing powder include a core structure 1, and one or more functional layer structures arranged concentrically with the core structure 1 and coated outside the core structure 1. The core structure 1 and each functional layer structure have different components.

[0043] Specifically, Figure 1 As shown, the powder particles of the washing powder include a core structure 1 and a decontamination functional layer structure 2 coated outside the core structure 1. The components of the decontamination functional layer structure 2 include: trichloroisocyanuric acid, sodium metasilicate, sodium bicarbonate, sodium hypochlorite, magnesium silicate, sodium dodecylbenzene sulfonate, sodium carbonate, sodium sulfate and other components.

[0044] The components of the core structure 1 include: one or more of quaternary ammonium salt, fatty alcohol polyoxyethylene ether, and fatty acid ester; the core structure 1 has the functions of making the fabric soft, fluffy, and eliminating static electricity; and helping to restore the inherent smoothness, extension, and compression properties of the fiber.

[0045] Alternatively, the core structure 1 comprises sodium percarbonate; when the core structure 1 is dissolved in water, hydrogen peroxide is generated, and finally decomposed into water and oxygen, which acts as an oxidant to bleach fabrics.

[0046] The washing machine powder particles of the present invention include a core structure 1 and a functional layer structure arranged in layers. When the washing powder is put into the washing water, the functional layer structure located in the outer layer dissolves first, and can act on the objects to be washed after dissolving. During the process of its functioning, it will not be interfered by the undissolved components of the core structure 1, and can give full play to its effectiveness. After the functional layer structure is completely dissolved, the core structure 1 begins to dissolve, and after dissolving, it acts on the objects to be washed that have been treated by the functional layer components, and further treats the objects to be washed. During the treatment process, since the functional layer components have completely acted on the objects to be washed, the core structure 1 components will not be interfered by the functional layer components when they act, and the effect is good.

[0047] In the present invention, if the functional layer structure is directly coated on the outside of the core structure 1, then when the functional layer structure is completely dissolved, the washing water will immediately contact the core structure 1, causing the core structure 1 to begin to dissolve. This will cause the functional layer structure components to be disturbed by the components of the core structure 1 before they have completely reacted with the clothes, thereby affecting their effects.

[0048] Based on this, the present invention provides an embodiment, such as Figure 2 As shown, there is a slow-release membrane structure 3 between the core structure 1 and the functional layer structure for separating the core structure 1 and the functional layer structure. Specifically, there is a slow-release membrane structure 3 between the core structure 1 and the decontamination functional layer structure 2.

[0049] Alternatively, there is a sustained-release membrane structure 3 between each functional layer structure for separating each functional layer structure.

[0050] Alternatively, there is a sustained-release membrane structure 3 between the core structure 1 and the functional layer structure, and between each functional layer structure, for separating each functional layer structure.

[0051] The slow-release membrane structure 3 can be a polyvinyl alcohol film. Polyvinyl alcohol is a water-soluble polymer characterized by good compactness, high crystallinity, strong adhesion, and a film made of it that is flexible and smooth, oil-resistant, solvent-resistant, abrasion-resistant, and has good gas barrier properties and good water solubility. The thickness of the slow-release membrane structure 3 in this embodiment can be adjusted according to the particle size of the washing powder particles.

[0052] In this embodiment, a slow-release membrane structure 3 is provided between the core structure 1 and the functional layer structure, so that after the washing powder is added to the washing water, the functional layer structure first dissolves and acts on the clothes. After the functional layer structure is dissolved, the slow-release membrane structure 3 protects the core structure 1 from immediately contacting the washing water. Instead, the core structure 1 starts to dissolve only after the slow-release membrane structure 3 is dissolved, thereby reserving sufficient time for the functional layer structure to process the clothes.

[0053] Furthermore, by arranging a slow-release membrane structure 3 between each functional layer structure, after the washing powder is added to the washing water, the functional layer structure located on the outer layer dissolves first and acts on the clothes. After the outer layer functional layer structure is completely dissolved, the inner layer functional layer structure is protected by the slow-release membrane structure 3 and will not contact the washing water immediately. Instead, the inner layer functional layer structure will start to dissolve only after the slow-release membrane structure 3 is completely dissolved, thereby reserving sufficient time for the outer layer functional layer structure to process the clothes.

[0054] As another embodiment of the present invention, the core structure 1 is composed of bleaching ingredients, and the functional layer structure is composed of decontamination ingredients. Alternatively, the core structure is composed of softener ingredients, and the functional layer structures are composed of bleaching ingredients and decontamination ingredients from the inside to the outside.

[0055] For example: Figure 3 As shown, the core structure 1 is a softener component, and the core structure 1 is coated by the first slow-release membrane structure 31 to form a first coating body 4; the ball material 5 of the bleaching component functional layer structure is located outside the first coating body 4; or, the ball material 5 of the bleaching component functional layer structure is made into a slurry and coated on the outside of the first coating body 4; the first coating body 4 and the ball material 5 of the bleaching component functional layer structure are coated with the second slow-release membrane structure 32 to form a second coating body 6; finally, the decontamination functional layer structure 2 is coated on the outside of the second coating body 6.

[0056] When the washing powder in this embodiment is added to the washing water, the dissolution order of each component is: decontamination functional layer structure 2-second slow-release membrane structure 32-bleaching component functional layer structure-first slow-release membrane structure 31-core structure 1. In this way, the washing powder in this embodiment treats the clothes in the order of "decontamination-bleaching-softening", and the treated clothes not only have a good cleaning effect, but also become soft, free of static electricity, and have fewer wrinkles.

[0057] The present invention also provides a method for preparing the washing powder as described in any one of the above technical solutions, which specifically comprises:

[0058] S1, preparing functional layer slurry;

[0059] S2, placing the core structure 1 in a molding device;

[0060] S3, injecting the prepared functional layer slurry into a molding device, drying, and cooling to obtain washing powder particles.

[0061] In the present invention, the functional layer slurry is injected into the molding equipment so that the functional layer structure can be coated on the outside of the core structure 1, thereby preparing a washing powder particle having a layered core structure and a functional layer structure; the functional layer structure of the powder particle located on the outer layer is dissolved first, and the core structure is dissolved later, so that different components act on the clothes in sequence according to the dissolution order, and the clothes are treated in steps.

[0062] As an embodiment of the present invention, a method for preparing washing powder comprises:

[0063] S1, preparing functional layer slurry;

[0064] S2, firstly coating the sustained-release membrane structure 3 outside the inner core structure 1;

[0065] S3, placing the core structure 1 coated with the sustained-release membrane structure 3 in a molding device;

[0066] S4, injecting the prepared functional layer slurry into a molding device;

[0067] S5, drying and cooling to obtain washing powder particles.

[0068] Preferably, the sustained-release membrane structure is a polyvinyl alcohol film.

[0069] In step S2 of this embodiment, coating the slow-release film structure 3 on the outer surface of the core structure 1 includes: immersing the component particles constituting the core structure into a polyvinyl alcohol aqueous solution, drying, and cooling, to obtain the core structure 1 coated with a polyvinyl alcohol film. For example: immersing a hemispherical cationic softener into a polyvinyl alcohol aqueous solution, and then drying and cooling to form a polyvinyl alcohol film to wrap the softener core structure 1.

[0070] The preparation method of this embodiment can be used to prepare washing powder particles having a slow-release membrane structure 3 between the core structure 1 and the functional layer structure. When the washing powder is added to the washing water, the functional layer structure first dissolves and acts on the clothes. After the functional layer structure is dissolved, the slow-release membrane structure 3 protects the core structure 1 from immediately contacting the washing water. Instead, the core structure 1 starts to dissolve after the slow-release membrane structure 3 is dissolved, thereby reserving sufficient time for the functional layer structure to process the clothes.

[0071] As another embodiment of the present invention, the core structure of the softener component is covered with a bleaching component functional layer structure and a decontamination component functional layer structure in sequence from the inside to the outside, such as Figure 4 As shown, the preparation steps include:

[0072] S1, coating the slow-release membrane structure 3 on the outer surface of the core structure 1 of the softener component to form a first coating body 4;

[0073] S2, placing the first coating body 4 and the bleaching component functional layer structure ball material 5 into a molding device, and heat-sealing and coating them with the slow-release film structure 3 to form a second coating body 6;

[0074] S3, preparing a decontamination component functional layer structure slurry;

[0075] S4, placing the second coating body 6 in a molding device;

[0076] S5, injecting the prepared decontamination component functional layer structure slurry into a molding device;

[0077] S6, drying;

[0078] S7, cooling to obtain washing powder particles.

[0079] The powder particles prepared by the preparation method of this embodiment are, from the outer layer to the inner layer, the following: decontamination functional layer structure 2 - the second slow-release membrane structure 32 - the bleaching component functional layer structure - the first slow-release membrane structure 31 - the inner core structure 1. In this way, the washing powder in this embodiment will treat the clothes in the order of "decontamination-bleaching-softening". The treated clothes not only have a good cleaning effect, but also become soft after washing, do not have static electricity, and have fewer wrinkles.

[0080] As an implementation mode of this embodiment, preparing a decontamination component functional layer structural slurry includes: weighing trichloroisocyanuric acid, sodium metasilicate, sodium bicarbonate, sodium hypochlorite, and magnesium silicate, putting them into 40-50°C water, stirring to dissolve, raising the temperature to 60-65°C, and then adding sodium dodecylbenzene sulfonate and sodium carbonate to dissolve, adding sodium sulfate after dissolution, filtering, degassing, and aging to obtain the product.

[0081] Specifically, in the present invention, 5-8 parts of trichloroisocyanuric acid, 10-15 parts of sodium metasilicate, 4-6 parts of sodium bicarbonate, 2-5 parts of sodium hypochlorite, and 10-11 parts of magnesium silicate are weighed in proportion, put into warm water at 40-50° C., and stirred with a slurry mixer; after stirring and dissolving, the temperature is raised to 60-65° C., and 20-30 parts of sodium dodecylbenzene sulfonate and 20-25 parts of sodium carbonate are added and dissolved; after dissolution, 20-30 parts of sodium sulfate are added, followed by filtering and degassing, and then aging for 30-40 minutes to obtain a decontamination component functional layer structure slurry.

[0082] The functional layer structure slurry of the decontamination component is injected into a spherical molding device equipped with sodium percarbonate and softener wrapped with a polyvinyl alcohol film, dried at 110-120°C to remove excess moisture, and finally cooled. Finally, 5-15 parts of protease and lipase and 1-2 parts of fragrance are sprayed on the surface to obtain laundry detergent powder particles.

[0083] The present invention also provides a control method for a washing device, wherein a washing device refers to a general term for a type of household appliances that can be used to wash clothes, such as a washing machine; a washing powder as described in any of the above technical solutions is added to the washing device, and washing parameters corresponding to the components of the inner core structure 1 of the washing powder and the components of each functional layer structure are preset.

[0084] During the washing process, it is detected whether there is a core structure 1 component in the washing water. If so, the washing parameters corresponding to the core structure component 1 are executed, otherwise the washing parameters corresponding to the functional layer structure component are controlled to be executed. Among them, the washing parameters include the washing time and the corresponding barrel or impeller speed, the start-stop ratio, etc. during washing.

[0085] Specifically, washing powder is divided into different types according to the proportion of each ingredient: for example:

[0086] Strong decontamination-mild softening type: the core structure 1 is a softener component, the functional layer structure is a decontamination component, and the proportion of the decontamination component is higher than that of the softener component, which has a strong decontamination ability; in the corresponding washing program, a cleaning wash of T1 duration is performed first, and then a softening wash of T2 duration is performed. The speed corresponding to the cleaning wash is greater than the speed corresponding to the softening wash, and T1>T2;

[0087] Strong softening-light decontamination type: the core structure 1 is a softener component, the functional layer structure is a decontamination component, and the proportion of the decontamination component is lower than that of the softener component; it has strong softening and anti-static functions for fabrics; in the corresponding washing program, the cleaning wash of T1' is performed first, and then the decontamination wash of T2' is performed. The speed corresponding to the cleaning wash is greater than the speed corresponding to the decontamination wash, and T1'<T2';

[0088] The washing machine is turned on to obtain the type of laundry detergent put in. If the laundry detergent obtained is a strong decontamination-mildly gentle type, the corresponding washing program is selected to wash the clothes, that is, the cleaning wash is performed for a longer time, and the washing machine runs at a higher speed for a longer time, so that the decontamination ingredients can fully react with the clothes to ensure that the stubborn stains on the clothes are washed away.

[0089] If the washing powder obtained is of the strong softening-light cleaning type, then choose the corresponding washing program to wash the clothes, that is, execute a program with a shorter cleaning wash time and a longer softening wash time. The washing equipment runs for a shorter time at a higher speed and for a longer time at a lower speed. In this way, the softener ingredients can fully penetrate the clothes to soften and remove static electricity from the clothes. In other words, when the softener takes effect, the speed does not need to be too high to avoid tangling the clothes together and reducing its treatment effect.

[0090] Furthermore, the washing device has a database for storing washing powder types and corresponding washing parameters, obtains the type of washing powder put in, and selects the corresponding washing parameters from the database according to the obtained washing powder type.

[0091] Wherein, obtaining the type of the added washing powder includes: the washing device can receive the washing powder type information input by the user, and obtain the washing powder type according to the received information; or, different types of washing powder have different marking colors, and the washing powder type is obtained by identifying the marking color of the added washing powder;

[0092] For example: strong stain removal-lightly soft washing powder has green marked particles, and strong soft washing powder-lightly soft washing powder has purple marked particles; identify the marked color of the washing powder put in, if green marked particles are identified, it is strong stain removal-lightly soft washing powder; if purple marked particles are identified, it is strong soft washing powder-lightly soft washing powder.

[0093] Furthermore, the washing equipment of this embodiment is provided with a cationic surfactant detector. Cationic surfactant is the main component of softener. If the cationic surfactant detector detects the presence of cationic surfactant in the washing water of the washing equipment, it indicates that the core structure 1 component exists in the washing water, that is, the core structure 1 has begun to dissolve.

[0094] In this embodiment, the washing machine reasonably adjusts the washing parameters according to the different components dissolved from the added washing powder, so that under the cooperation of the water flow formed by the corresponding washing parameters, the various components of the washing powder can exert their maximum efficiency and improve the treatment effect on the clothes.

[0095] As an implementation method of the embodiment, the components of the core structure 1 are bleaching components, such as sodium percarbonate; the components of the functional layer structure are decontamination components, and the washing intensity of the washing parameters corresponding to the decontamination components is controlled to be greater than the washing intensity of the washing parameters corresponding to the bleaching components.

[0096] Specifically, when the decontamination component is dissolved in the washing water, the washing speed is V1; when the bleaching component is dissolved in the washing water, the washing speed is switched from V1 to V2, where V1>V2. Furthermore, the concentration of hydrogen peroxide in the washing water is detected. Once the concentration of hydrogen peroxide is detected to be greater than a preset value, it can be determined that the bleaching component is dissolved in the washing water.

[0097] In this way, under the action of a stronger water flow, the detergent ingredients can fully react with the clothes to ensure that the stubborn stains on the clothes are washed away; when the bleaching ingredients take effect, the washing intensity does not need to be too high, as long as the bleaching ingredients can contact the clothes to play their role.

[0098] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A washing powder, characterized in that: The powder particles of the washing powder include a core structure and one or more functional layer structures which are arranged concentrically with the core structure and coated outside the core structure. The core structure and each functional layer structure have different components.

2. A washing powder according to claim 1, characterized in that: A slow-release membrane structure for separating the core structure from the functional layer structure is provided between the core structure and the functional layer structure, and / or a slow-release membrane structure for separating the functional layer structures is provided between the functional layer structures; Preferably, the sustained-release membrane structure is a polyvinyl alcohol film.

3. A washing powder according to claim 1 or 2, characterized in that: The components of the core structure are bleaching components, and the components of the functional layer structure are decontamination components; or, the components of the core structure are softener components, and the components of each functional layer structure from inside to outside are bleaching components and decontamination components in sequence.

4. A method for preparing a washing powder according to any one of claims 1 to 3, characterized in that: Functional layer slurry is prepared, the core structure is placed in a molding device, the prepared functional layer slurry is injected into the molding device, dried, and cooled to obtain washing powder particles.

5. The method for preparing washing powder according to claim 4, characterized in that: Firstly, a slow-release film structure is coated on the outer surface of the core structure, and then the core structure coated with the slow-release film structure is placed in a molding device, and the prepared functional layer slurry is injected into the molding device, dried, and cooled to obtain washing powder particles; Preferably, the sustained-release membrane structure is a polyvinyl alcohol film.

6. The method for preparing washing powder according to claim 5, characterized in that: The method of coating the sustained-release membrane structure outside the core structure includes: immersing the component particles constituting the core structure into a polyvinyl alcohol aqueous solution, drying, and cooling to obtain the core structure coated with the polyvinyl alcohol membrane.

7. The method for preparing the washing powder according to claim 5 or 6, characterized in that: The softener component's inner core structure is covered with a bleaching component functional layer structure and a decontamination component functional layer structure from the inside out. Firstly, a slow-release membrane structure is coated on the outer surface of the core structure of the softener component to form a first coating body; Then, the first coating body and the ball material of the bleaching component functional layer structure are placed in a molding device and heat-sealed and coated with a slow-release film structure to form a second coating body; Prepare a decontamination component functional layer structure slurry, place the second coating body in a molding device, inject the prepared decontamination component functional layer structure slurry into the molding device, dry and cool, and obtain washing powder particles.

8. The method for preparing washing powder according to claim 7, characterized in that: The preparation of the functional layer structure slurry of the decontamination component includes: weighing trichloroisocyanuric acid, sodium metasilicate, sodium bicarbonate, sodium hypochlorite, and magnesium silicate, putting them into 40-50°C water, stirring to dissolve, heating to 60-65°C, and then putting in sodium dodecylbenzene sulfonate and sodium carbonate to dissolve, adding sodium sulfate after dissolution, filtering, degassing, and aging to obtain the slurry.

9. A control method for a washing device, characterized in that: Add the washing powder as described in any one of claims 1 to 3, preset washing parameters corresponding to the core structural components of the washing powder and the structural components of each functional layer, and during the washing process, detect whether the core structural components are present in the washing water. If so, execute the washing parameters corresponding to the core structural components, otherwise, control the execution of the washing parameters corresponding to the functional layer structural components.

10. A control method for a washing device according to claim 9, characterized in that: The components of the core structure are bleaching components, and the components of the functional layer structure are decontamination components. The washing intensity of the washing parameters corresponding to the decontamination components is controlled to be greater than the washing intensity of the washing parameters corresponding to the bleaching components.

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