KR102588828B1 - Washing capsule for laundry - Google Patents

Abstract

The present invention relates to a capsule detergent, which is made by sealing a fixed amount of ultra-highly concentrated liquid detergent and/or bleach and/or fabric softener in a water-soluble film, improving the disadvantages of powder-type and liquid-type detergents such as dusting, spilling, and container contamination. This is an invention about a laundry capsule detergent that can be used without measuring or getting anything on your hands.
The capsule detergent for laundry includes a pocket portion including at least one receiving portion made of a water-soluble film; and a laundry detergent composition comprising detergent, bleach, and fabric softener, wherein an accommodating space for accommodating the laundry detergent composition is formed in the accommodating portion, and one of the laundry detergent compositions is filled into the accommodating space. do. In addition, the laundry capsule detergent may include a dissolution time control unit selectively applied to the receiving unit to control the time for the water-soluble film to dissolve in water.

Description

Capsule detergent for laundry {WASHING CAPSULE FOR LAUNDRY}

The present invention relates to a capsule detergent, which is made by sealing a fixed amount of ultra-highly concentrated liquid detergent and/or bleach and/or fabric softener in a water-soluble film, improving the disadvantages of powder-type and liquid-type detergents such as dusting, spilling, and container contamination. This is an invention about a laundry capsule detergent that can be used without measuring or getting anything on your hands.

Existing powder-type detergents have the problem of deterioration of their properties and contents due to interactions between moisture and other components during long-term storage. For example, moisture in the air accelerates the cake formation of powder, and zeolite and oxygen silicate used in powder detergent form a complex, creating a substance that is insoluble in water. In addition, liquid detergents are difficult to measure when using, and there are inconveniences in use and storage, such as liquid spills or leaks, and contamination of the mouth of the container.

Structural problems with the washing machine itself can cause problems with washing. That is, in the case of a general washing machine, detergent is concentrated in a portion of the washing machine, so when washing is performed in this state, the detergent is not completely dissolved and effective washing cannot be performed. Especially in winter, lumps of undissolved detergent may appear even after washing is completed.

In addition, drum washing machines use less water, but because they use a drop-down washing method, a large amount of air bubbles are generated during washing, resulting in low rinsing efficiency. Additionally, if the appropriate amount of dedicated detergent is not used properly, washing and rinsing may be interrupted. There is a problem with its effectiveness.

KR 10-2020-0110088A (Publication date: September 23, 2020) KR 10-2020-2120029A (Publication date: June 8, 2020) KR 10-2021-0002876A (Publication date January 11, 2021)

The present invention is intended to solve the problems of the prior art described above, and is made in a form in which ultra-highly concentrated liquid detergent and/or bleach and/or fabric softener are sealed in a fixed amount in a water-soluble film, thereby improving the disadvantages of existing powder-type and liquid-type detergents. The purpose is to provide a capsule detergent for laundry that does not get on your hands and can be used without measuring.

Another object of the present invention is to provide a capsule detergent for laundry that can increase laundry efficiency by controlling the dissolution time of detergent, bleach, and fabric softener in water differently depending on the washing process.

The laundry capsule detergent according to the present invention includes a pocket portion including at least one receiving portion made of a water-soluble film; and a laundry detergent composition comprising detergent, bleach, and fabric softener, wherein an accommodating space for accommodating the laundry detergent composition is formed in the accommodating portion, and one of the laundry detergent compositions is filled into the accommodating space. do.

In addition, the laundry capsule detergent according to the present invention may be configured to include a dissolution time control unit selectively applied to the receiving unit to control the time for the water-soluble film to dissolve in water. .

The capsule detergent for laundry according to the present invention contains a fixed amount of detergent, bleach, and fabric softener sealed in one capsule, eliminating the need for improvement, significantly reducing deterioration of the contents, and providing convenience in use.

In addition, the laundry capsule detergent according to the present invention improves washing efficiency by first dissolving detergent and bleach in water according to the washing process to remove contaminants on the fabric, and then fabric softener is dissolved in water to protect fabrics vulnerable to alkali. It can be raised.

1 is a conceptual diagram showing the structure of a laundry capsule detergent according to the present invention.
Figure 2 shows various embodiments of a laundry capsule detergent according to the present invention.
Figure 3 is a flow chart showing the process of forming the receiving portion of the present invention.
Figure 4 is a perspective view showing various shapes of the receiving portion according to the present invention.
Figure 5 is a conceptual diagram showing one embodiment of the dissolution time control unit according to the present invention.
Figure 6 is a conceptual diagram showing another embodiment of the dissolution time control unit according to the present invention.

Hereinafter, the most preferred embodiments of the present invention will be described in detail in order to enable those skilled in the art to easily practice the present invention. The reference number in the example is not limited to the designated number, and any number can be accepted. The configuration presented in the examples can be expanded to objects that have the same purpose and effect. The sub-concepts of the configuration presented in the examples can be viewed as inherent even if they are not directly described.

As shown in FIG. 1, the laundry capsule detergent 1000 according to the present invention is made by filling the laundry detergent composition 300 in the receiving portion 200 formed in the pocket portion 100. The pocket portion 100 includes at least one receiving portion 200 made of a water-soluble film (A), which is a flexible polymer material, and a receiving space for accommodating the laundry detergent composition 300 in the receiving portion 200. This is formed.

That is, the receiving space is formed by sealing the periphery of a pair of laminated water-soluble films (A), and in the pocket part 100, the receiving part 200 having the receiving space is formed singly or adjacent to each other. The laundry detergent composition 300 includes detergent 310, bleach 320, and fabric softener 330, and the receiving portion 200 is filled with one of the laundry detergent compositions 300.

The laundry capsule detergent (1000) does not leak through the water-soluble film (A) when the laundry detergent composition (300) is stored at 25° C. for a period of 6 months, and the laundry capsule detergent (1000) does not leak through the water-soluble film (A). It is preferable that the laundry detergent composition 300 be manufactured so that phase separation cannot be detected with the naked eye even after being frozen and thawed three or more times.

Hereinafter, the laundry capsule detergent according to the present invention will be described in detail with reference to the attached drawings.

1. Pocket part

As shown in FIG. 1, the pocket portion 100 of the present invention is an area filled with the laundry detergent composition 300 and includes at least one receiving portion 200 made of a water-soluble film (A), which is a flexible polymer material. ; and a dissolution time adjusting unit 400 that is selectively applied to the receiving unit 200 to control the dissolving time of the water-soluble film (A) in water.

1.1 Water-soluble film

The water-soluble film (A) of the present invention can be dissolved in water when washed together with the laundry detergent composition (300), and the thickness of the water-soluble film (A) is such that the storage and stability of the laundry composition (300) can be secured. It is preferably 50 to 100 ㎛. If the thickness is less than 50㎛, there is a possibility that the laundry detergent may dissolve or deform when stored for a long time, and if it exceeds 100㎛, it may not dissolve quickly in water during washing, which may cause inconvenience in use.

The water-soluble film (A) may be one or a mixture thereof selected from the group of polyvinyl alcohol, polyvinyl acetate, partially hydrolyzed polyvinyl acetate, gelatin, alginate, cellulose ether, polyethylene oxide, and polyacrylate, Polyvinyl alcohol is most preferred. Using the selected materials, the water-soluble film (A) can be obtained by methods such as casting, blow-molding, extrusion or blow extrusion of polymer materials known in the art.

The water-soluble film (A) may be opaque, transparent, or translucent, and may include a printing area. The printing area can be achieved using standard techniques such as flexographic printing or inkjet printing, and in one embodiment of the present invention, the printing method can be used as a means to control the thickness of the water-soluble film, By adjusting the thickness of the water-soluble film to control the time for the water-soluble film to dissolve in water, a time delay or time reduction effect can be provided.

Additionally, the water-soluble film (A) may contain an inhibitor, for example, a bittering agent. The bittering agent may be naringin, sucrose octaacetate, quinine hydrochloride, denatonium benzoate, or a mixture thereof.

Additionally, the water-soluble film (A) may be coated with a lubricant, including talc, zinc oxide, silica, siloxane, zeolite, silicic acid, alumina, sodium sulfate, potassium sulfate, calcium carbonate, magnesium carbonate, sodium citrate, and sodium tripolyphosphate. , potassium citrate, potassium tripolyphosphate, calcium stearate, zinc stearate, magnesium stearate, starch, modified starch, clay, kaolin, gypsum, cyclodextrin, or mixtures thereof can be used.

Additionally, embossed grooves or protrusions can be formed on the surface of the water-soluble film (A) to prevent them from sticking to each other even when multiple laundry capsule detergents (1000) are stacked.

1.2 Receiving part

As shown in FIGS. 1 and 2, the receiving portion 200 of the present invention is a space in which the laundry detergent composition 300 is accommodated, and is composed of 1 to 3 pieces, including the receiving portion 200 and the receiving portion 200. ) A notch portion 250 is formed between the two so that each receiving portion 200 is separated and dissolved in water. According to various embodiments listed below, each receiving portion 200 selectively accommodates one of detergent 310, bleach 320, and fabric softener 330 that constitute the laundry detergent composition 300.

(Example 1-1) When there is only one receiving part 200, one selected from detergent 310, bleach 320, and fabric softener 330 is filled in the first receiving part.

(Example 1-2) When there are two receiving parts 200, one set selected from detergent 310, bleach 320, detergent 310, and fabric softener 330 is placed in the first and second receiving parts, respectively. It is filled into the receiving part.

(Example 1-3) When there are three receiving parts 200, detergent 310, bleach 320, and fabric softener 330 are filled in the first receiving part, the second receiving part, and the third receiving part, respectively. do.

The method for manufacturing the receiving portion 200 using the water-soluble film (A) according to the present invention, as shown in Figure 3, includes the following steps:

a. thermoforming the first water-soluble film in a mold to create an open receiving space;

b. filling the open receiving space with a laundry detergent composition according to the present invention through at least one nozzle;

c. Closing the filled accommodation space with a second water-soluble film;

d. sealing the first water-soluble film and the second water-soluble film to seal the laundry detergent composition; Here, the first water-soluble film and the second water-soluble film may be sealed by heat sealing, solvent sealing, pressure sealing, or a combination thereof, but the present invention is not limited thereto and the water-soluble films can be sealed by various sealing methods. You can.

e. When the receiving space is formed in plural, forming a notch portion by moving the notch cutter by reciprocating the cylinder between the receiving spaces in a state in which the first water-soluble film and the second water-soluble film are sealed.

Here, the shape of the receiving part 200 can be variously expressed as a square, triangle, circle, oval, Taegeuk pattern, irregular shape, or a combination thereof, as shown in FIGS. 2 and 4.

1.3 Dissolution time control unit

The dissolution time adjusting unit 400 of the present invention is intended to provide a time delay or time shortening effect by controlling the time at which the water-soluble film (A) constituting the receiving unit 200 is dissolved in water, and is used in the laundry detergent composition. (300) It is formed by changing the thickness of the water-soluble film (A) to be thick or thin depending on the type.

When washing laundry using a washing machine, detergents and bleach generally act on objects such as clothing and towels first to separate and remove contamination on the objects, and fabric softeners add softness and fragrance to the objects in the final rinsing step. I do it. In the above washing process, detergent cooperates with the rotating washing machine to physically separate the contamination on the object, while bleach chemically oxidizes the contamination, so adding a certain amount of bleach at the same time as adding the detergent will improve the washing effect. can promote. On the other hand, fabric softener protects the object by neutralizing the alkalinity of the detergent during the final rinsing process, while also softening the object, preventing static electricity, and adding fragrance. Therefore, the container filled with detergent and bleach must dissolve first, and the container filled with fabric softener must dissolve after a certain period of time to perform effective washing.

(Example 2-1) As shown in FIG. 1, the dissolution time control unit 400 of the present invention applies a dissolution delay film (B) on the surface of the receiving part 200 filled with the fabric softener 330. By printing to increase the thickness of the receiving portion 300, the time for the fabric softener 330 to dissolve in water can be delayed. That is, the dissolution time control unit 400 can be created by flexographic printing or inkjet printing a dissolution delay film (B) on the printing area of the water-soluble film (A) constituting the receiving unit 300. , the present invention is not limited to this and the same effect can be achieved using other standard printing techniques.

The dissolution retarding film (B) is a water-soluble material made of one or more completely hydrolyzed polyvinyl acetate, one or more partially hydrolyzed polyvinyl acetate, and two or more different partially hydrolyzed polyvinyl acetates. mixture formed; or a mixture formed of one or more partially hydrolyzed polyvinyl acetate and one or more completely hydrolyzed polyvinyl acetate. The degree of hydrolysis of the partially hydrolyzed polyvinyl acetate used in the production of the dissolution-retarding film (B) is 85 to 98 mol%. The thickness of the dissolution retarding film (B) is preferably 1㎛ to 9㎛, preferably 3㎛ to 5㎛.

(Example 2-2) As shown in FIGS. 5 and 6, the dissolution time control unit 400 of the present invention is a container 200 filled with detergent 310 and/or bleach 320. By forming a plurality of grooves (Aa) on one or both sides of the water-soluble film (A) (see FIG. 5) or by engraving a cross or a plurality of straight grooves (Ab) in the center area of the receiving part (200) (see FIG. Refer to 6) By forming the receiving portion 300 to be thin, the time for the detergent 310 and/or bleach 320 to dissolve in water can be accelerated.

2. Laundry detergent composition

The laundry detergent composition 300 of the present invention consists of any one of detergent 310, bleach 320, and fabric softener 330, or a combination thereof.

2-1. Detergent

The detergent 310 of the present invention is accommodated and stored inside the receiving portion 200 made of the water-soluble film (A), and when washed, it dissolves in water together with the water-soluble film (A) and binds to the dirt adhering to the laundry object. This removes dirt from laundry objects by pulling the dirt into the water. A surfactant present in an amount of 30 to 70 parts by weight per 100 parts by weight of detergent, an ionic liquid present in an amount of 10 to 35 parts by weight, 1 to 5 parts by weight. A foam suppressant present in an amount of 10 to 35 parts by weight and a solvent system present in an amount of 10 to 35 parts by weight.

The surfactant includes (i) an anionic surfactant and (ii) a nonionic surfactant, and the anionic surfactant and the nonionic surfactant are mixed in a ratio of 3:2 to 9:1.

The anionic surfactant includes linear alkylbenzenesulfonic acid and its salts having an alkyl group having 8 to 18 carbon atoms, sulfuric acid ester salts of higher alcohols having 10 to 18 carbon atoms, polyoxyethylene alkyl ether sulfuric acid ester salts having 10 to 16 carbon atoms, etc. can be used, and the nonionic surfactant can be a polyoxyethylene alkyl ether in which 8 to 12 oxyethylene molecules are added to a primary or secondary alcohol having 8 to 16 carbon atoms.

The content of the surfactant used in the present invention is 30 to 70 parts by weight, preferably 45 to 50 parts by weight, per 100 parts by weight of detergent. When the surfactant content is excessive, less than 30 parts by weight or more than 70 parts by weight, it is undesirable because it is difficult to expect sufficient cleaning power or the laundry detergent becomes unstable. At this time, it is preferable to mix the anionic surfactant and the nonionic surfactant in a ratio of 3:2 to 9:1.

The ionic liquid may be composed of cations and anions having a structure according to the following chemical formula.

A. Chemical structure of cations

B. Chemical structure of anion

wherein each R ¹ -R ⁵ is independently a linear or branched C ₁ -C ₁₀ alkyl, aryl, or alkylaryl group;

Each R ¹ -R ⁵ is optionally substituted with N, P, S, and O.

According to another embodiment of the present invention, tris(2-hydroxyethyl)methylammonium methylsulfate may be used as the ionic liquid.

The foam suppressant may be made of silicone or a silica-silicon mixture, and is prepared by attaching the silicone to the surface of solid silica. The silicone is an alkylated polysiloxane material, and the silica can be used in various forms such as silica aerosol and xerogel, which are used in finely divided form. The foam suppressant is a hydrophobic silane mixed with dimethyl silicone liquid having a molecular weight of 500 to 200,000 and a weight ratio of silicon to silanized silica of 1:1 to 1:2, a particle size of 10 to 20 nm, and a specific surface area of 50 m2/g or more. It is preferable to use silica.

The solvent system may be water present in an amount of 10 to 35 parts by weight per 100 parts by weight of detergent. The water acts as a solubilizer that dissolves major and/or minor components constituting the detergent, and may also act as a plasticizer that helps prevent the water-soluble film from hardening.

The water is preferably present in an amount of 10 to 35 parts by weight per 100 parts by weight of detergent. If the content is less than 10 parts by weight, the effect as a solubilizer cannot be realized and phase stability is reduced. If the content is more than 35 parts by weight, the stability of the water-soluble film is reduced, so that the water-soluble film (A) may be damaged during long-term storage. It dissolves and leaks occur, or its shape deforms, lowering aesthetic satisfaction.

Additionally, the solvent system can be prepared by adding 10 to 35 parts by weight of additional solvent per 100 parts by weight of detergent. Said additional solvents include propylene glycol, ethylene glycol, butylene glycol, glyme, diglyme, triglyme, polyethylene glycol with a weight average molecular weight of 106 to 600 g/mol, 1,3-propanediol, 1,4 -One selected from the group of butanediol and glycerin, or a mixture thereof, can be used.

In addition, the detergent can be used by mixing an appropriate amount of conventional additives as needed within the range that does not deviate from the effect of the present invention. For example, it may be an enzyme, fragrance, fluorescent whitening agent, pigment, antioxidant, pH adjuster, preservative, silicone defoaming agent, etc., but is not limited thereto.

2-2. bleach

The bleach 320 is used to remove contaminants or stains on laundry by decomposing them through chemical action, and includes a non-aqueous organic solvent; and a liquid bleach composition containing an inorganic material consisting of solid peroxide with an average diameter of 0.1 to 100 μm and silica with an average diameter of 0.1 to 100 μm.

Here, the non-aqueous organic solvent and the inorganic material are preferably present in a weight ratio of 1:0.6 to 1:2, but if the inorganic material is less than the above-mentioned range, the bleaching effect is not sufficient and the amount is large. This is because it may cause inconvenience in use due to the poor flowability of liquid bleach.

In addition, the peroxide and silica are preferably present in a weight ratio of 650:1 to 7:1, but if silica is present in a small amount outside the above-mentioned range, layer separation occurs due to insufficient viscosity, reducing dispersion stability and formulation stability. This is because it cannot be secured, and on the other hand, if too much silica is present, excessive viscosity creates a sticky paste type, making it difficult to use.

Since the non-aqueous organic solvent has low polarity and must not chemically react with other components used together, it can be selected from among polyalkylene glycols, polyhydric alcohols, alkylene glycol monoalkylethephs, alkyl esters, and alkylamides. Any one selected or a mixture thereof may be used.

At this time, the amount of non-aqueous organic solvent used is preferably 35 to 60% by weight of the total weight of the liquid bleach composition. If the amount of non-aqueous organic solvent used is less than 35% by weight, the viscosity of the liquid bleach increases and flowability cannot be secured. If it exceeds 60% by weight, although flowability as a liquid is ensured, peroxide and silica may be present due to low viscosity. The problem arises that it is difficult to maintain distributed stability.

The solid peroxide may be selected from the group of percarbonate, perborate, persulfate, and urea peroxide, and percarbonate is preferably used. This is because percarbonate is a compound made up of a combination of sodium carbonate and hydrogen peroxide and has a high content of available oxygen and high solubility in water.

It is preferable to use the solid peroxide having an average particle size within the range of 0.1 to 100 μm. Here, if the average particle size is large, the content of peroxide in the solid phase can be increased, but if it is excessively large, sedimentation of the particles in the liquid phase occurs, showing poor dispersibility, and it may take a long time for the powder to dissolve in the liquid phase. A problem arises.

The silica is a solid thickener with an average particle size of 0.1 to 100 μm, and includes fatty acids, cross-linked acrylic copolymers, carboxymethyl cellulose, polyvinyl alcohol, polyvinylpyrrolidone, and sodium polyacrylate. It may further include at least one auxiliary thickener selected from.

2-3. fabric softener

The fabric softener 330 neutralizes slightly alkaline laundry detergent to make it fluffy and soft, and removes detergent residue. It contains 10 to 20 parts by weight of organic acid and 10 to 20 parts by weight of fragrance material based on 100 parts by weight of fabric softener. It is composed by:

The higher the acidity of the organic acid, the better the deodorizing power. The lower the pKa value, the lower the pH of the aqueous solution. Therefore, using an organic acid with a low pKa value can increase the deodorizing power of the fabric softener. The organic acid may include one or more selected from the group consisting of citric acid, acetic acid, tartaric acid, succinic acid, malic acid, and lactic acid. Among these, citric acid is suitable for use as an organic acid due to its low raw material cost.

The organic acid may be included in an amount of 10 to 20 parts by weight based on 100 parts by weight of the fabric softener. It exhibits excellent deodorizing power within the above range and is efficient in removing detergent residue. Even when the content of organic acid is more than 20% by weight, it shows excellent deodorizing power. However, as the content of organic acid increases, the pH of the rinse water decreases, so it is better to use it at 20% by weight or less.

The aromatic substance includes a plant extract selected from fruit extract, herb extract, or a mixture thereof. The fruit extract may include citrus extract or lemon extract, and the herb extract may include lavender extract, rosemary extract, and thyme. extract, basil extract, or a mixture thereof can be used. Since it is desirable for the fragrance material to have higher hydrophilicity compared to general fragrance substances, one with a logP value of less than 2.5 is used.

In addition, the fabric softener of the present invention can be used by appropriately mixing oil, water, surfactants, moisturizers, lower alcohols, thickeners, chelating agents, colorants, preservatives, etc., which are generally mixed in fabric softeners, as needed, in addition to the ingredients described above. there is.

1000: Capsule detergent for laundry
100: pocket part 200: receiving part
300: Laundry detergent composition 310: Detergent
320: Bleach 330: Fabric softener
A: Water-soluble film B: Dissolution delay film

Claims (5)

A pocket portion 100 including at least one receiving portion 200 made of a water-soluble film (A); and
It consists of a laundry detergent composition (300) comprising detergent (310), bleach (320), and fabric softener (330),
A receiving space is formed in the receiving part 200 to accommodate the laundry detergent composition 300, and one of the laundry detergent compositions 300 is filled into the receiving space,
It includes a dissolution time adjusting unit 400 that is selectively applied to the receiving unit 200 to control the dissolving time of the water-soluble film (A) in water,
The bleach 320 is,
Non-aqueous organic solvent; and an inorganic material consisting of solid peroxide with an average diameter of 0.1 to 100 μm and silica with an average diameter of 0.1 to 100 μm,
The dissolution time control unit 400,
It includes printing a dissolution retarding film (B) on the surface of the receiving part 200 to increase the thickness of the receiving part 200,
The degree of hydrolysis of the partially hydrolyzed polyvinyl acetate used in the production of the dissolution-retarding film (B) is 85 to 98 mol%, and the thickness of the dissolution-retarding film (B) is 1 ㎛ to 9 ㎛,
The dissolution time control unit 400,
A capsule detergent for laundry, comprising forming a cross or a plurality of straight grooves (Ab) in the center area of the receiving portion (200) to form a thinner thickness of the receiving portion (200).
According to claim 1,
The capsule detergent for laundry consists of 1 to 3 accommodating parts 200.
According to claim 2,
A capsule detergent for laundry in which a notch portion 250 is formed between the receiving portion 200 and the receiving portion 200.
According to claim 1,
A laundry capsule detergent in which embossed grooves or protrusions are formed on the surface of the water-soluble film (A).
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