Laundry composition and preparation method therefor

Abstract

SOLUTION: A laundry composition comprises an encapsulation material, a functional component encapsulated within the encapsulation material, and a binder used for bonding the encapsulation material, wherein the encapsulation material is a film-forming material having a washing function, and the functional component comprises one or more of softening particles, fragrance-retaining particles, active oxygen particles, and an enzyme preparation.EFFECT: By encapsulating the functional component with the encapsulation material having the washing function, the laundry composition can simultaneously achieve a cleaning and stain removal function, a softening function, and a fragrance-retaining function. In addition, since the softening particles, the fragrance-retaining particles, the active oxygen particles, and the enzyme preparation in the functional component are not directly added to the encapsulation material, it is possible to prevent the functional component from losing effectiveness when the encapsulation material is subjected to high-temperature press-forming, thereby solving a problem that effects are poor or costs are high when functional components are directly added to conventional laundry sheets.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention is in the field of daily chemical products, and more particularly relates to laundry compositions and methods for preparing the same. [Background technology]

[0002] Conventional laundry products come in various forms, including powder detergents (washing powders), laundry soap powders, soap blocks and / or laundry sheets (sheets), liquid washing liquids, and laundry beads (also known as detergent capsules). Laundry beads and laundry sheets are portable, but laundry beads require the laundry materials to be sealed in a PVA film, which can result in a high plastic content and potentially adverse environmental impacts. Laundry sheets are a new type of laundry product that can be formed in a different form and are characterized by their high surfactant content. Laundry sheets can be obtained in sheet form by drying laundry sheet raw materials at high temperatures. Laundry sheets are attracting attention from users due to their advantages of being easily soluble in water, being portable, easy to measure, and having low shipping costs. As described above, laundry sheets are manufactured in sheet form by drying laundry sheet raw materials at high temperatures. In the specification of a Chinese patent application with patent publication number CN117363432A, the laundry sheet and the method for producing the same require heating the raw materials of the laundry sheet to 90-105°C to form the laundry sheet. This heating process can reduce the stability of the enzymes, potentially rendering some of the enzymes inactive. Therefore, it is not easy to select a suitable enzyme, and the amount of enzyme added must be increased. Furthermore, because conventional laundry sheets are produced using a high-temperature manufacturing process, it is not possible to add essence microcapsules with good fragrance retention properties to the laundry sheet. Instead, ordinary essence must be added to achieve the fragrance retention function. Adding ordinary essence increases surfactant consumption, thereby reducing the stain removal ability of the laundry sheet.The main ingredients of laundry sheets are anionic surfactants or nonionic surfactants, while the main ingredient of fabric softeners is cationic surfactants. Therefore, if fabric softener is added directly to laundry sheets, the anionic surfactants will be consumed by the fabric softener, reducing the laundry sheet's stain removal power and softening retention.

[0003] Therefore, there is a need to improve upon the conventional technology. Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE INVENTION In order to overcome the shortcomings of the prior art, the object of the present invention is to provide a laundry composition and a method for preparing the same, thereby overcoming the shortcomings of the limited functionality of conventional laundry sheets. [Means for solving the problem]

[0005] In order to achieve the above object, the present invention employs the following technical features. The laundry composition of the present invention includes a packaging material, a functional ingredient packaged inside the packaging material, and an adhesive for adhering the packaging material. The packaging material is a film-forming material having a laundry function. The functional ingredient includes one or more of softening particles, fragrance-retaining particles, active oxygen particles, and an enzyme preparation.

[0006] In the laundry composition, the weight ratio of the packaging material to the functional ingredient is 1:(1 to 3).

[0007] In the laundry composition, the functional ingredients are composed of softening particles, fragrance-retaining particles, active oxygen particles, and an enzyme preparation, and the weight ratio of the softening particles, fragrance-retaining particles, active oxygen particles, and enzyme preparation is 1:(2-4):(0.1-2):(0.01-0.5).

[0008] In the laundry composition, the raw materials for manufacturing the packaging material are measured by mass percent and include 1-5% of a first film-forming agent, 10-20% of a second film-forming agent, 10-30% of a surfactant, 1-10% of a stretching agent, 0-5% of a bacteriostatic agent, 0-1% of a pigment, and the remainder is water.

[0009] In the laundry composition, the first film-forming agent is any one or more of a polyvinyl alcohol, a polyethylene ether, or a polyvinylpyridine compound.

[0010] In the laundry composition, the second film-forming agent is any one or more of cationically modified starch, modified cellulose, modified hemicellulose, and modified lignin.

[0011] In the laundry composition, the surfactant is one or more of sodium dodecyl sulfate, sodium dodecyl sulfonate, α-olefin sulfonate, betaine-type amphoteric surfactant, amino acid surfactant, and aliphatic alcohol polyoxyethylene ether compound.

[0012] In the laundry composition, the extension agent is any one or more of glycerol or polymers thereof, alkyl glycosides, or low molecular weight block polysiloxanes.

[0013] In the laundry composition, the antimicrobial agent is any one or more of tropolone, curcumin, diclosan, or chloroxylenol in combination.

[0014] The present invention further provides a method for producing the laundry composition. The method includes preparing a packaging material, preparing an adhesive, and packaging the functional ingredients. In packaging the functional ingredients, the functional ingredients are first placed on one sheet of packaging material, and adhesive is applied to the edges of the sheet-like packaging material. Next, another sheet of packaging material is placed on the first sheet, and the edges of the sheet are pressed together to form a sealed structure composed of the two sheets of packaging material, thereby obtaining the laundry composition. [Effects of the Invention]

[0015] In the laundry composition and its manufacturing method of the present invention, the laundry composition simultaneously performs stain removal, softness maintenance, and fragrance maintenance functions by packaging the functional ingredients in a packaging material with cleaning function. Furthermore, since the softening particles, fragrance maintenance particles, active oxygen particles, and enzyme preparation among the functional ingredients are not directly added to the packaging material, the functional ingredients are prevented from becoming ineffective when the packaging material is molded at high temperatures, thereby solving the problems of reduced effectiveness or increased costs of functional ingredients added directly to conventional laundry sheets. Furthermore, by packaging each functional ingredient in a packaging material, exposure of each functional ingredient is prevented. In particular, the functionality of each functional ingredient is maintained by preventing the active oxygen particles and enzyme preparation from coming into contact with air. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a diagram showing an actual laundry composition according to Example 1 of the present invention. [Figure 2] FIG. 1 is a diagram showing an actual laundry composition according to Example 7 of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0017] The present invention provides a laundry composition and a method for preparing the same. In order to more clearly and precisely explain the objectives, technical aspects, and effects of the present invention, the present invention will be described in detail in the following examples. It should be noted that the following specific examples are for illustrative purposes only and are not intended to limit the present invention.

[0018] In the prior art, additional ingredients are added to the raw materials of laundry sheets to increase the additional functions of the laundry sheets. For example, essence (or essence microcapsules) or fabric softener ingredients are added to the raw materials of laundry sheets to ensure the fragrance retention and softness retention functions of the laundry sheets, or active oxygen particles or enzyme preparations are added to the raw materials of laundry sheets to increase the washing function of the laundry sheets. Preparations can be added. When manufacturing laundry sheets, the ingredients are first mixed evenly to form a molten raw material. The molten raw material is then dried at high temperatures to obtain sheet-shaped laundry sheets. When manufacturing laundry sheets, the molten raw material must be heated to 100°C or higher. Heating the molten raw material to that temperature and stirring it can potentially inactivate the active oxygen particles and enzyme preparations. Furthermore, high temperatures and stirring can cause essence microcapsules to prematurely burst and release their active oxygen particles, potentially eliminating the laundry sheet's fragrance-retaining function. This can result in the laundry sheet losing its functionality other than its laundry function. Therefore, the desired functionality must be achieved by increasing the amount of additional ingredients, which increases costs. Furthermore, when free essence, for example, is added instead of essence microcapsules as a fragrance-retaining component for laundry sheets, the free essence can potentially reduce the surfactant content, thereby reducing the laundry sheet's washing performance.

[0019] Therefore, in a first embodiment of the present invention, the following laundry detergent composition is provided. The laundry composition may be in the form of a sheet, a block, or beads, and the specific product shape can be determined according to actual needs. The laundry composition includes a packaging material, functional ingredients packaged within the packaging material, and an adhesive for adhering the packaging material. The ratio of the packaging material to the functional ingredients can be adjusted as desired according to actual functional needs. To ensure the packaging performance of the packaging material, a ratio of the weight of the packaging material to the weight of the functional ingredients of 1:1 to 3 can be set. This allows the packaging material to adequately encapsulate the functional ingredients within the packaging material and ensure the laundry function and other auxiliary functions of the laundry composition. The packaging material is a film-forming material with a laundry function. For example, a sheet-shaped laundry film or laundry sheet can be manufactured using the film-forming material. The packaging material can be dissolved in water to provide the cleaning and stain-removing functions of the laundry composition, and its excellent molding effect can prevent the laundry compositions (packaged in the packaging material) from adhering to each other. The packaging material must have a certain degree of flexibility and extensibility. Because the packaging material has good tensile strength, a space for storing performance ingredients can be formed by adhering one or two sheets of packaging material together. This allows for the production of a sheet-, block-, or bead-shaped laundry composition that provides functions such as washing, softening, fragrance retention, disinfection, and color mixing prevention. The functional ingredients can include one or more of softening particles, fragrance retention particles, active oxygen particles, and enzyme preparations, but preferably include more than one. By encapsulating the functional ingredients inside the packaging material, the laundry composition can exhibit excellent softening, fragrance retention, or washing effects. The adhesive seals the opening or edges of the packaging material, thereby encapsulating the functional ingredients inside the packaging material.

[0020] The laundry composition simultaneously performs stain removal, softening, and fragrance retention functions by packaging the functional ingredients in a packaging material with cleaning functionality. Furthermore, because the particulate softening particles, fragrance-retaining particles, active oxygen particles, and enzyme preparation are not directly added to the packaging material, the functional ingredients are prevented from becoming ineffective when the packaging material is molded at high temperatures, thereby solving the problems of reduced effectiveness or increased costs of functional ingredients added directly to conventional laundry sheets. Furthermore, by packaging each functional ingredient in a packaging material, exposure of each ingredient is prevented. In particular, the active oxygen particles and enzyme preparation are prevented from coming into contact with air, thereby preserving the functionality of each functional ingredient. By adjusting the amount of packaging material and functional ingredients in the laundry composition, a cleaning material with a predetermined amount can be obtained, and the portability and convenience of the laundry composition can be improved. When using the laundry composition, adding one or more laundry compositions depending on the amount of laundry can achieve functions such as cleaning, softening, fragrance retention, and disinfection.

[0021] Because the packaging material not only encapsulates functional ingredients but also functions as a washable material, it must have good molding properties, flexibility, and stretchability, and the amount of surfactant contained in the packaging material must not be reduced. Conventional laundry sheets have good stretchability due to the use of polyvinyl alcohol as a carrier. However, because conventional laundry sheets do not readily dissolve in water, they are unable to improve their washability. Therefore, reducing the amount of film-forming material, such as polyvinyl alcohol, while improving the molding and washability of packaging materials is a challenge that must be overcome. In a preferred embodiment of the present invention, the raw materials used to manufacture the packaging material, when measured by mass percentage, contain 1-5% first film-forming agent, 10-20% second film-forming agent, 10-30% surfactant, 1-10% stretching agent, 0-5% antibacterial agent, 0-1% colorant, and the remainder is water. The first film-forming agent may be one or more of polyvinyl alcohol, polyethylene ether, or polyvinyl pyridine compounds, but is not limited to these. For example, the first film-forming agent may be other organic compounds with film-forming properties. The film-forming material is characterized by its excellent film-forming effect despite its small addition amount. The second film-forming agent may be one or more of cationically modified starch, modified cellulose, modified hemicellulose, or modified lignin, but is not limited to these. For example, the second film-forming agent may be a substance that has film-forming properties and is environmentally degradable.This material has a film-forming function and is environmentally friendly because it can be decomposed by microorganisms when dissolved in water. When dissolved in water, the film-forming agent has gelling or flocculation functions, thereby adsorbing anionic pigments and preventing color mixing. The stretching agent may be, but is not limited to, one or more of glycerol or its polymer, alkyl glycoside, or low molecular weight block polysiloxanes. For example, the stretching agent may also be other compounds having the same function. The stretching agent acts on the first and second film-forming agents to improve the stretchability of the packaging material and prevent cracking of the packaging material. This improves the sealing effect of the packaging material, sealing the functional ingredients. The surfactant may be one or more of sodium dodecyl sulfate, sodium dodecyl sulfonate, α-olefin sulfonic acid salts, betaine amphoteric surfactant, amino acid surfactant, and fatty alcohol polyoxyethylene ether compounds, but is not limited to these. For example, the surfactant may be other substances having the same function. Such surfactants have good washing effects and can effectively remove stains from clothes, allowing clothes to be washed cleanly.The antibacterial agent is any one or a combination of tropolone, curcumin, diclosan (HP-100), or chloroxylenol (PCMX), so that the laundry composition has good antibacterial properties.

[0022] The packaging material does not use polyvinyl alcohol, which is not easily degradable, but instead uses cationic modified starch, modified cellulose, modified hemicellulose, and modified lignin, which are easily degradable. By using a stretching agent, the amount of the first film-forming agent, which is not easily degradable, can be significantly reduced, thereby achieving the goal of reducing the amount of plastic used. Furthermore, the packaging material has good molding properties and flexibility, allowing functional ingredients to be well encapsulated within the packaging material. Furthermore, film-forming agents such as cationic modified starch, modified cellulose, modified hemicellulose, and modified lignin have gelling or coagulation properties, which allow them to adsorb anionic dyes and prevent color mixing.

[0023] In a preferred embodiment of the present invention, the functional ingredients are composed of softening particles, fragrance-retaining particles, active oxygen particles, and an enzyme preparation, so that the laundry composition has various functions, such as increasing the stain removal effect, ensuring the softness of clothes, and maintaining the fragrance for a long time.

[0024] In a preferred embodiment of the present invention, the weight ratio of the packaging material to the functional ingredients is 1:2, and the weight ratio of the softening particles, fragrance-retaining particles, active oxygen particles, and enzyme preparation is 1:(2-4):(0.1-2):(0.01-0.5). By using a laundry composition in which the weight ratio of the functional ingredients is as described above, stain removal and softness of clothes can be effectively ensured, and fragrance can be maintained for a long time.

[0025] In a preferred embodiment of the present invention, the active oxygen particles in the functional ingredient are particulate materials formed by wrapping a water-soluble inert film on the surface of a percarbonate or persulfate substrate. When the active oxygen particles are added to water, they release oxygen, thereby decomposing organic stains and improving the cleaning effect of laundry compositions.

[0026] In a preferred embodiment of the present invention, the enzyme preparation in the functional ingredient may be one or more of protease, cellulase, amylase, lipase, and pectinase. The cooperation of such enzyme preparation and surfactant ensures effective cleaning of clothes, and can achieve better cleaning effect even with a reduced amount of laundry composition used.

[0027] In a preferred embodiment of the present invention, the enzyme preparation is a combination of protease, cellulase, amylase, lipase, and pectinase provided by Novozymes, with the weight ratio of protease, cellulase, amylase, lipase, and pectinase being 5:5:3:1:1. By using a granular enzyme preparation with the weight ratios set forth above, cleaning effectiveness can be ensured.

[0028] In a preferred embodiment of the present invention, the fragrance-retaining particles in the functional ingredient are essence microcapsules, which can easily adhere to the surface of clothing and burst due to friction, releasing the fragrance and ensuring long-lasting fragrance release. Preferably, the fragrance-retaining particles are those manufactured by Firmenich and composed of HALOSCENT D, HALOSCENT I, or HALOSCENT E essence. The fragrance-retaining particles release various fragrances when exposed to oxygen, ensuring a variety of fragrances and long-lasting fragrance release.

[0029] In a preferred embodiment of the present invention, the softener particles in the functional ingredients are high-concentration softener beads, and the softener is preferably WS series softener beads manufactured by Foshan Magic Crystal Technology Development Co., Ltd. in China, because this softener has the advantage of ensuring good softness of clothes.

[0030] In a preferred embodiment of the present invention, the adhesive contains a bacteriostatic agent, cationically modified starch, or modified cellulose. The bacteriostatic agent is diclosan (HP-100) or chloroxylenol (PCMX), which has bacteriostatic and antiseptic properties. The cationically modified starch or modified cellulose has adhesive properties and can prevent color bleeding.

[0031] The present invention further provides a method for making a laundry composition, the method comprising making a packaging material, making an adhesive, and packaging a functional ingredient.

[0032] The manufacturing of the packaging material includes the following steps:

[0033] In S1, a portion of the water (30-50% of the total water volume) and the first film-forming agent are mixed evenly at room temperature. In S2, a surfactant is added and the mixture is heated to 55-80°C, after which they are mixed evenly. In S3, the heating is stopped, and the second film-forming agent and colorant are added, followed by high-speed mixing until they become thick and creamy. In S4, the remaining water (50-70% of the total water volume) is added, the temperature is lowered to 40-60°C, and then a stretching agent and a bacteriostatic agent are added and mixed evenly. In S5, a film or sheet having a thickness of 0.05-0.3 cm is produced at a temperature of 105-115°C, and the film or sheet is then rolled (wound up) and cut to obtain a sheet-like packaging material.

[0034] The preparation of the adhesive comprises the following steps:

[0035] The cationic modified starch or modified cellulose and water are mixed evenly and heated to 60-85°C to obtain a paste-like material. The paste-like material is then cooled to 35-40°C, and an antibacterial agent is added and the mixture is mixed evenly to obtain the adhesive.

[0036] The packaging of the active ingredient comprises the following steps:

[0037] First, the functional ingredient is placed on one sheet of packaging material, and adhesive is applied to the edge of the sheet-like packaging material. Next, another sheet of packaging material is placed on the first sheet of packaging material, and the edges of the packaging material are pressed together to form a sealed structure comprising the two sheets of packaging material, thereby obtaining the laundry composition.

[0038] Other methods can also be used to package the functional ingredients. For example, the functional ingredients can be placed on a piece of packaging material, and then the edges of the packaging material can be glued together with an adhesive to encapsulate the functional ingredients inside the packaging material.

[0039] The following examples are provided to more fully illustrate the laundry compositions and methods of making the same of the present invention.

[0040] Example 1 As shown in Figure 1, the laundry composition of Example 1 is formed into a bag shape. The laundry composition includes a packaging material, a functional ingredient, and an adhesive, the mass ratio of the packaging material to the functional ingredient is 1:2, the functional ingredient is packaged inside the packaging material, and the adhesive seals the packaging material.

[0041] The packaging material ingredients, when measured by weight percent, include 3% polyvinyl alcohol, 15% cationically modified starch, 10% sodium dodecyl sulfate, 15% sodium dodecyl sulfonate, 5% glycerol, 2% tropolone, 1% color, and 49% water.

[0042] The functional ingredients include a particulate fabric softener, fragrance-retaining particles, active oxygen particles, and an enzyme preparation, and the weight ratio of the fabric softener, fragrance-retaining particles, active oxygen particles, and enzyme preparation is 1:3:1:0.3.

[0043] The adhesive is composed of cationically modified starch and antibacterial agent in a weight ratio of 10:1.

[0044] The laundry composition is prepared in the following manner. Packaging material manufacturing In S1, a portion of the water and polyvinyl alcohol are mixed evenly at room temperature. In S2, sodium dodecyl sulfate and sodium dodecyl sulfonate are added and heated to 75°C, followed by mixing evenly. In S3, heating is stopped, and the cation-modified starch and colorant are added, followed by high-speed mixing until a thick, creamy mixture is obtained. In S4, the remaining water is added, the temperature is lowered to 55°C, and then glycerol and tropolone are added and mixed evenly. In S5, a film or sheet with a thickness of 0.2 cm is produced by a compression process at a temperature of 110°C, and the film or sheet is rolled and cut to obtain a sheet-like packaging material.

[0045] Adhesive manufacturing The cationic modified starch or modified cellulose and water are uniformly mixed and heated to 75°C to obtain a paste-like material. The paste-like material is then cooled to 38°C, and an antibacterial agent is added and the mixture is uniformly mixed to obtain an adhesive.

[0046] Functional ingredient packaging First, the functional ingredient is placed on one sheet of packaging material, and adhesive is applied to the edge of the sheet-like packaging material. Next, another sheet of packaging material is placed on the first sheet of packaging material, and the edges of the packaging material are pressed together to form a sealed structure comprising the two sheets of packaging material, thereby obtaining the laundry composition.

[0047] Example 2 The laundry composition of Example 2 comprises a packaging material, a functional ingredient, and an adhesive, the mass ratio of the packaging material to the mass of the functional ingredient being 1:1, the functional ingredient being packaged inside the packaging material, and the adhesive sealingly adhering the packaging material.

[0048] When the raw materials of the packaging material are measured by mass percent, the raw materials of the packaging material contain 1% polyethylene ether, 20% modified cellulose, 15% α-olefin sulfonate, 15% betaine-type amphoteric surfactant, 10% alkyl glycoside, and 39% water.

[0049] The functional ingredients include a particulate fabric softener, fragrance-retaining particles, active oxygen particles, and an enzyme preparation, and the weight ratio of the fabric softener, fragrance-retaining particles, active oxygen particles, and enzyme preparation is 1:2:0.1:0.01.

[0050] The adhesive is composed of modified cellulose and a bacteriostatic agent in a weight ratio of 10:1.

[0051] Example 3 The laundry composition of Example 3 comprises a packaging material, a functional ingredient, and an adhesive, the mass ratio of the packaging material to the functional ingredient being 1:3, the functional ingredient being packaged inside the packaging material, and the adhesive sealingly adhering the packaging material.

[0052] The raw materials of the packaging material are measured by mass percent and contain 5% polyvinylpyridine, 10% modified hemicellulose, 10% betaine-type amphoteric surfactant, 1% low molecular weight block polysiloxane, 5% HP-100, 1% pigment, and 68% water.

[0053] The functional ingredients include a particulate fabric softener, fragrance-retaining particles, active oxygen particles, and an enzyme preparation, and the weight ratio of the fabric softener, fragrance-retaining particles, active oxygen particles, and enzyme preparation is 1:4:2:0.5.

[0054] The adhesive is composed of cationically modified starch and antibacterial agent in a weight ratio of 10:1.

[0055] Example 4 The laundry composition of Example 4 comprises a packaging material, a functional ingredient, and an adhesive, the mass ratio of the packaging material to the functional ingredient being 1:2, the functional ingredient being packaged inside the packaging material, and the adhesive sealingly adhering the packaging material.

[0056] The packaging material ingredients, measured by weight percentage, include 2% polyvinyl alcohol, 18% modified lignin, 28% amino acid surfactant, 7% glycerol polymer, 2% PCMX, 1% pigment, and 42% water.

[0057] The functional ingredients include a particulate fabric softener, fragrance-retaining particles, active oxygen particles, and an enzyme preparation, and the weight ratio of the fabric softener, fragrance-retaining particles, active oxygen particles, and enzyme preparation is 1:3:0.5:0.05.

[0058] The adhesive is composed of cationically modified starch and antibacterial agent in a weight ratio of 10:1.

[0059] Example 5 The laundry composition of Example 5 comprises a packaging material, a functional ingredient, and an adhesive, the mass ratio of the packaging material to the functional ingredient being 1:2.5, the functional ingredient being packaged inside the packaging material, and the adhesive sealingly adhering the packaging material.

[0060] The packaging material ingredients, when measured by weight percent, include 4% polyvinyl alcohol, 13% cationically modified starch, 22% fatty alcohol polyoxyethylene ether, 4% glycerol, 1% tropolone, 2% HP-100, 1% color, and 53% water.

[0061] The functional ingredients include a particulate fabric softener, fragrance-retaining particles, active oxygen particles, and an enzyme preparation, and the weight ratio of the fabric softener, fragrance-retaining particles, active oxygen particles, and enzyme preparation is 1:2.5:1.5:0.1.

[0062] The adhesive is composed of cationically modified starch and antibacterial agent in a weight ratio of 10:1.

[0063] Example 6 The laundry composition of Example 6 is similar to that of Example 1, except that the mass ratio of the packaging material to the mass of the functional ingredient is 1:1, and the functional ingredient is fragrance-holding particles.

[0064] The methods for making the laundry compositions of Examples 2-6 are similar to the method for making the laundry composition of Example 1.

[0065] Example 7 As shown in Figure 2, the laundry composition of Example 7 is formed into a block shape. The laundry composition of Example 7 is similar to the laundry composition of Example 1. The difference is that the ratio of the mass of the packaging material to the mass of the functional ingredient is 1:1, and the functional ingredient is softening particles.

[0066] Example 8 The laundry composition of Example 8 is formed into a block shape. The laundry composition of Example 8 is similar to the laundry composition of Example 1. The difference is that the ratio of the mass of the packaging material to the mass of the functional ingredient is 1:1.5, the functional ingredient is a combination of softening particles and active oxygen particles, and the ratio of the weight of the softening particles to the weight of the active oxygen particles is 2:1.

[0067] Example 9 The laundry composition of Example 9 is formed into a block shape. The laundry composition of Example 9 is similar to the laundry composition of Example 1. The difference is that the ratio of the mass of the packaging material to the mass of the functional ingredients is 1:2, and the functional ingredients are a combination of softening particles, active oxygen particles, and an enzyme preparation, and the ratio of the weight of the softening particles, the weight of the active oxygen particles, and the weight of the enzyme preparation is 1:1:0.3.

[0068] The manufacturing methods of the laundry compositions of Examples 7 to 9 are similar to that of Example 1. The difference is that in the step of packaging the functional ingredients, the edges of the packaging material are pressed and the center of the packaging material is pressed to form a block of laundry composition.

[0069] Contrast ratio 1 When the raw materials for Comparative Example 1 laundry sheet are measured by weight, the raw materials for the laundry sheet include 3 weight parts polyvinyl alcohol, 15 weight parts cation-modified starch, 10 weight parts sodium dodecyl sulfate, 15 weight parts sodium dodecyl sulfonate, 5 weight parts glycerol, 2 weight parts tropolone, 50 weight parts water, 37.73 weight parts fabric softener, 113.2 weight parts fragrance-retaining particles, 37.73 weight parts active oxygen particles, and 16.98 weight parts enzyme preparation.

[0070] The laundry sheet is manufactured by the following method. First, half of the water and polyvinyl alcohol are mixed evenly at room temperature. Next, a surfactant is added and the mixture is heated to 65°C and mixed evenly. Next, the heating is stopped, and the cation-modified starch and colorant are added, followed by high-speed mixing until the mixture becomes thick and creamy. Next, the remaining water is added, and the temperature is lowered to 50°C. After that, the stretching agent, antibacterial agent, softener, fragrance-retaining particles, active oxygen particles, and enzyme preparation are added and mixed evenly. Finally, a film or sheet with a thickness of 0.2 cm is produced by a compression process at a temperature of 110°C, and the film or sheet is cut to obtain laundry sheets.

[0071] Contrast ratio 2 The laundry composition of Comparative Example 2 is similar to that of Example 1, except that polyvinyl alcohol is used in place of the cationically modified starch.

[0072] Contrast ratio 3 The laundry composition of Comparative Example 3 is similar to that of Example 1, except that cationically modified starch is used in place of the polyvinyl alcohol.

[0073] Performance measurement The performance of the products of Examples 1 to 5 and Comparative Examples 1 to 3 was measured. The performance measurements included measuring the stain removal power, softness retention effect, fragrance retention effect, and color mixing prevention effect. The stain removal power was measured by measuring the stain removal power and circulation washing performance of laundry detergent according to the standard GB / T13174-2021, and then comparing the results with the stain removal rate of a standard detergent to evaluate. The softness retention effect was measured according to GB / T 18318.1-2009 and can be expressed as the reduction value ΔL of the straight bending length. ΔL=

number

[0074] Table 1. Dirt removal rate [Table 1]

[0075] As shown in Table 1, the stain removing ability of the laundry compositions of Examples 1 to 9 is related to the amounts of surfactant, active oxygen particles, and enzyme preparation added; the greater the amount of surfactant, active oxygen particles, and enzyme preparation added, the stronger the stain removing ability of the laundry composition. As shown in Comparative Example 1, the component ratios of Comparative Example 1 are the same as those of Example 1, but the method of manufacturing the laundry composition by stirring the components to form a molten state and then compressing them to form the laundry composition significantly reduces the stain removing ability of the laundry composition. As described above, the stain removing ability of the laundry composition can be ensured by separately manufacturing the packaging material and functional components and then packaging the functional components in the packaging material.

[0076] Table 2 Reduction in straight bending length [Table 2]

[0077] As shown in Table 2, the reduction in linear bending length of the laundry compositions of Examples 1 to 9 is related to the amount of softener added; the greater the amount of softener added, the greater the reduction in linear bending length of the laundry compositions. As shown in Comparative Example 1, because a conventional manufacturing method is used in Comparative Example 1, there is a significant difference in the softening effect even when the same softener ingredient ratio is used. Packaging the softener ingredients in a packaging material can prevent the softener from becoming ineffective.

[0078] Table 3: Static fragrance retention strength [Table 3]

[0079] As shown in Table 3, the fragrance-retaining effect of the laundry compositions of Examples 1 to 9 is related to the amount of fragrance-retaining particles added; the more the amount of fragrance-retaining particles added, the greater the fragrance-retaining effect of the laundry composition. As shown in Comparative Example 1, when the amount of fragrance-retaining particles added in Comparative Example 1 is the same as in Example 1, the fragrance-retaining effect of the laundry composition of Comparative Example 1 is weaker. This is because, when using conventional manufacturing methods, the fragrance-retaining particles may burst, causing the fragrance of the fragrance-retaining particles to be prematurely released.

[0080] Table 4. Staining levels [Table 4]

[0081] As shown in Table 4, the staining level of the laundry compositions in Examples 1 to 9 is related to the amount of fabric softener added; the more fabric softener added, the higher the staining level of the laundry composition and the stronger the color-blend prevention ability. As shown in Comparative Example 1, when the amount of fabric softener added in Comparative Example 1 is the same as in Example 1, the staining level in Comparative Example 1 is weaker than in Example 1. This is because the amount of fabric softener may be reduced during the preparation of the laundry composition. The color-blend prevention ability in Comparative Example 3 is stronger than in Example 1 because the cationically modified starch may adsorb some dyes.

[0082] Tensile testing was also conducted on the packaging materials produced in Examples 1 to 5 and Comparative Examples 2 and 3. The tensile testing was conducted according to the method of GB / T 3923.1-1997, and the obtained breaking force data was compared. (The packaging material was cut into strips 5 cm wide and 11 cm long, and both ends of the strip were fixed to a tensile device. The packaging material was then pulled at a constant speed until it broke, and the maximum tensile force of the packaging material when it broke was recorded. The unit of maximum tensile force is N.) Specific test results are shown in Table 5.

[0083] Table 5. Rupture strength of packaging materials [Table 5]

[0084] As shown in Table 5, the rupture strength of the packaging material is related to the amount and type of first film-forming agent added. The rupture strength of the packaging materials prepared in Examples 1 to 5 was 10.91 N or greater. This ensures that the packaging material will not rupture when packaging functional ingredients with the packaging material of the present invention. As shown in Comparative Example 3, without the addition of a first film-forming agent, the maximum rupture strength of the packaging material is only 9.819 N. Tests have shown that when packaging functional ingredients with a rupture strength of less than 10 N, the packaging material easily ruptures. Therefore, it is necessary to add a first film-forming agent with a high rupture strength to the packaging material. Because polyvinyl alcohol is not easily decomposed, it is preferable to reduce the amount of first film-forming agent added as long as the required rupture strength of the packaging material can be met.

[0085] Although the present invention has been described in detail above with reference to the preferred embodiments thereof, the preferred embodiments are merely illustrative of the present invention and the present invention is not limited to the above embodiments. A person skilled in the art may make design changes and improvements without departing from the technical aspects and gist of the present invention, and such design changes and improvements are naturally included within the scope of the claims of the present invention.

Claims

1. A laundry composition comprising a packaging material, a functional ingredient packaged inside the packaging material, and an adhesive for adhering the packaging material, wherein the packaging material is a film-forming material having a laundry function, and the functional ingredient comprises one or more of softening particles, fragrance-retaining particles, active oxygen particles, and an enzyme preparation.

2. 2. The laundry composition according to claim 1, wherein the weight ratio of the packaging material to the functional ingredient is 1:(1-3).

3. 3. The laundry composition according to claim 2, wherein the functional ingredients are composed of softening particles, fragrance-retaining particles, active oxygen particles, and an enzyme preparation, and the weight ratio of the softening particles, fragrance-retaining particles, active oxygen particles, and enzyme preparation is 1:(2-4):(0.1-2):(0.01-0.5).

4. 2. The laundry composition of claim 1, wherein the raw materials for manufacturing the packaging material are measured by weight percent and include 1-5% of a first film-forming agent, 10-20% of a second film-forming agent, 10-30% of a surfactant, 1-10% of a stretching agent, 0-5% of a bacteriostatic agent, 0-1% of a pigment, and the remainder is water.

5. 5. The laundry composition of claim 4, wherein the first film-forming agent is one or more of a polyvinyl alcohol, a polyethylene ether, or a polyvinylpyridine compound.

6. 5. The laundry composition of claim 4, wherein the second film-forming agent is one or more of cation-modified starch, modified cellulose, modified hemicellulose, and modified lignin.

7. 5. The laundry composition according to claim 4, wherein the surfactant is one or more of sodium dodecyl sulfate, sodium dodecyl sulfonate, α-olefin sulfonate, betaine-type amphoteric surfactant, amino acid surfactant, and aliphatic alcohol polyoxyethylene ether compound.

8. 5. The laundry composition of claim 4, wherein the extender is one or more of glycerol or polymers thereof, alkyl glycosides, or low molecular weight block polysiloxanes.

9. 5. The laundry composition of claim 4, wherein the antimicrobial agent is any one or a combination of tropolone, curcumin, diclosan, and chloroxylenol.

10. A method for producing a laundry composition, the method being used for producing the laundry composition according to any one of claims 1 to 9, the method comprising producing a packaging material, producing an adhesive, and packaging a functional ingredient, wherein in packaging the functional ingredient, the functional ingredient is placed on one sheet of packaging material, adhesive is applied to an edge of the sheet-like packaging material, another sheet of packaging material is placed on the packaging material, and the edge of the packaging material is pressed to form a sealed structure composed of the two sheets of packaging material, thereby obtaining the laundry composition.

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