KR20020037639A - Tablet-form detergent composition, and detergent produced therefrom - Google Patents

Abstract

PURPOSE: A pill-shaped cleanser composition and a pill-shaped cleanser prepared from the composition are provided, to improve the strength of a cleanser and to allow the cleanser to be disintegrated and dissolved rapidly when it is dosed in water, thereby enhancing the cleanser power. CONSTITUTION: The pill-shaped cleanser composition comprises 60-95 wt% of cleanser particle containing a surfactant, a builder and other cleanser components; 1-8 wt% of a binder; 1-15 wt% of a particular swellable disintegrant; 3-30 wt% of a particular post-dosed material; and optionally 0.1-10 wt% of microcrystalline cellulose or lactose powder. The binder is preferably selected from the group consisting of polyethylene glycol, polypropylene glycol, poly(vinyl alcohol) and their mixtures. The surfactant comprises an anionic surfactant; and 40 wt% of a nonionic surfactant or more.

Description

Tablet-form detergent composition, and detergent produced therefrom}

The present invention relates to a composition capable of producing a tablet detergent having excellent strength and solubility, and to a tablet detergent prepared therefrom. More specifically, the present invention relates to detergent particles, binders, which contain a large amount of nonionic surfactants, A tablet detergent composition comprising a granular swellable disintegrant and a granular post-dosed material and a tablet detergent prepared therefrom.

Generally, tablet detergent is easy to use because it is made by press-pressing a certain amount of powder detergent, and it is hygienic because it is easy and accurate to weigh and there is no fear of scattering or spilling of detergent. There is a concern. If the tablet is put in the wash water and does not dissolve in a short time, the cleaning power is lowered because no cleaning component is released from the tablet. In addition, tablet detergents may wear and break due to impact or friction during manufacturing, transportation, and use, resulting in a significant drop in product value. For this purpose, preparation of tablets with sufficient strength is essential.

However, such solubility and strength are known to be opposite properties in tablet detergents. In other words, when a tablet having sufficient strength against impact or abrasion is produced, the solubility of the tablet is lowered. On the contrary, when the solubility is improved, the tablet is weakened and easily broken. Thus, it is difficult to prepare a tablet detergent having proper solubility and strength. . In particular, when preparing a tablet detergent from a powder detergent containing a large amount of nonionic surfactant, the problems of solubility and strength are more serious. That is, in order to prepare a powder detergent containing a large amount of nonionic surfactant, a large amount of zeolite or nonionic absorbent carrier is used for supporting a liquid nonionic surfactant at room temperature. Since these zeolites and oil-absorbing carriers lower the strength of tablets, they must be prepared by tableting at high pressure in order to obtain tablet detergent having appropriate strength. However, although the strength is improved at the time of high-pressure tableting, there is a problem that the solubility is reduced.

Several techniques have been introduced to solve the solubility and strength problems of tablets. First, European Patent Publication No. 0846754A1 tried to improve solubility and strength by tableting detergent particles using a weak tableting pressure and dipping the surface thereof in a di-carboxylate solution, but this is not preferable because the process is complicated. .

European Patent Publication No. 0839906 attempts to improve the solubility of tablets by incorporating a large amount of hydrated phosphate, but phosphate is also undesirable because it may cause environmental pollution such as eutrophication.

Korean Patent Publication Nos. 1995-7719 and 1996-7876 propose a method of mixing a carbonate and a water-soluble solid acid into a granular detergent and then purifying it. When such tablets are added to water, the dissolution of the tablets may be promoted by carbon dioxide gas produced by the reaction of carbonates and water-soluble solid acids. There is a disadvantage in that the amount of carbon dioxide generated even if the input is significantly reduced and the solubility improvement effect is lowered.

Japanese Patent Laid-Open Nos. 4-239100, 4-161498, etc., propose a method of tableting by mixing potassium carbonate having excellent solubility in water with detergent particles. In this case, since the potassium carbonate is dissolved by slowly reacting the water present in the tablet with potassium carbonate, there is a problem that the stability of the tablet rapidly decreases due to storage.

On the other hand, patents related to the purification of powdered detergents containing a large amount of nonionic surfactants reveal efforts mainly to increase the strength of the tablets. That is, powder detergents containing a large amount of nonionic surfactants contain a large amount of zeolites and oil absorbents, so that tablets having appropriate strength can be obtained only by tableting at high pressure. However, when tablets are prepared by high-pressure tableting, the solubility of the tablets obtained is very poor, and therefore the binder pressure is often reduced by using a binder. U.S. Patent No. 5658874 proposes a method of compression tableting at a relatively high temperature (below 5 to 15 ° C below the melting point of the binder) after adding polyethylene glycol as a binder in order to purify a powder detergent having a nonionic surfactant as a main surfactant. Doing. In this case, it is possible to manufacture a tablet detergent having high strength, but it is not preferable because high temperature tableting is complicated in the process and stability of fragrance, enzyme, etc., which are heat sensitive raw materials, is greatly reduced.

Japanese Patent Laid-Open Nos. 10-183198 and 10-183199 also use a polyethylene glycol as a binder to provide a tableting method for powder detergents using nonionics as the main surfactant. They can be tableted to a relatively low pressure to make tablet detergents, thus maximizing the voids in the tablets, which facilitates the transfer of water into the tablets without the need for dissolution accelerators such as blowing agents or disintegrants. Claims to dissolve easily. However, in the case of washing under low bath ratio where the stirring force is relatively weak, even though water penetrates into the tablet, the binding force by the binder is relatively strong, while the dissolution rate of the tablet itself is weak.

As described above, many methods for obtaining tablet detergent having excellent solubility and strength have been attempted.

The present inventors have diligently researched to solve the problems of the conventional tablet detergent as described above, and as a result, it is possible to prepare a tablet detergent having excellent strength and solubility from detergent particles containing a large amount of nonionic surfactant. To the present invention.

Therefore, an object of the present invention is to provide a tablet-type detergent composition which is excellent in strength and capable of rapidly disintegrating and dissolving in contact with water to express an excellent washing effect when introduced into water.

The tablet detergent composition of the present invention is based on the final tablet detergent,

(1) 60 to 95% by weight of detergent particles containing surfactants, builders and other detergent components,

(2) 1 to 8% by weight of the binder,

(3) 1 to 15% by weight granular expandable disintegrant, and

(4) It is characterized by containing 3-30 weight% of granular post addition substances.

Further, if necessary, (5) 0.1 to 10% by weight of microcrystalline cellulose or lactose powder is further included.

In another aspect, the present invention is prepared by coating the detergent particles containing the surfactant, builders and other detergent components in the composition with a binder, and then adding and mixing the granular expandable disintegrant and granular post-additives, followed by compression It relates to a tablet detergent.

Hereinafter, the present invention will be described in detail.

Detergent particles of (1) is composed of 3 to 40% by weight of surfactant, 15 to 85% by weight of builders and other detergent components such as fluorescent brightener, anti-contamination agent, anti-inflammation agent based on the final tablet type detergent. As the surfactant of the present invention, all of anionic, nonionic, cationic and zwitterionic surfactants can be used. However, in view of washing power, it is preferable to use an anionic surfactant and a nonionic surfactant in combination. In particular, the tablet detergent composition of the present invention is characterized in that it comprises detergent particles, characterized in that it contains 40% by weight or more of the nonionic surfactant with respect to the total surfactant.

Anionic surfactants usable in the present invention are linear alkylbenzene sulfonates, alkyl or alkenyl sulfates, alpha olefin sulfonates, α-sulfo fatty acid ester salts, fatty acid salts, alkanesulfonic acid salts, sulfobacmic acid alkyl ester salts, acylaminoalkanesulfonic acids It is possible to select from salts, alkyl or alkenyl esters or salts thereof, and nonionic surfactants form liquids or pastes below 50 ° C, and polyoxyethylene alkyl ethers having a HLB (Hydrophile-lypophile balance) value of 5 to 15 or It can select from polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene sorbitan fatty acid ester, sugar fatty acid ester, polyoxyethylene fatty acid ester, fatty acid alkanolamide, etc. Among these, in particular, the average carbon number of the anionic surfactant and the alkyl group is 6 to 22, preferably 10 to 20 linear or branched primary and secondary alcohols, 3 to 20 mol, preferably 5 to 15 mol of ethylene oxide. Or nonionic surfactant of polyoxyethylene alkylether or polyoxyethylene-polyoxypropylene alkylether to which 3 to 10 moles of propylene oxide is added, or a mixture thereof, and the total content of the surfactant is 3 based on the final tablet detergent. 40 weight% is preferable. Among them, the content of the nonionic surfactant is 40% by weight or more based on the total surfactant content.

Detergent particles according to the present invention, these surfactants and the oil-absorbing carrier that can support them, inorganic builders such as zeolites, carbonates, silicates, sulfates, citrate, polyacrylates, polymaleates, polymers of acrylate-maleate, ethylenediamine Organic builders such as tetraacetate may be used, and other detergent components may include fluorescent brighteners, anti-inflammation agents, anti-contamination agents, and the like.

On the other hand, the present invention is characterized by coating the detergent particles with a binder in order to improve the strength of the tablet. This is to lower the tableting pressure applied in the manufacture of the tablet to obtain a tablet that is advantageous in terms of solubility.

That is, in order to prepare detergent particles containing a large amount of nonionic surfactant, a large amount of zeolite or nonionic absorbent carrier is used for supporting a liquid nonionic surfactant at room temperature. Since these zeolites and oil-absorbing carriers lower the strength of tablets, tablets should be prepared by compression at high pressure to obtain tablet detergent having appropriate strength. However, although the strength of tablets is improved during high-pressure tableting, solubility is deteriorated. Therefore, in the case of making a tablet detergent by pressurizing a powder detergent containing a large amount of non-ionic surfactant, it is advantageous in terms of solubility to lower the tableting pressure using a binder.

For this purpose, the present invention uses a water-soluble polymer material having a melting point of 30 to 90 ° C. and existing in a solid state at room temperature as a binder. Such a binder may be selected from polyethylene glycol, polyvinyl alcohol, polypropylene glycol, and the like. The binder is used in an amount of 1 to 8% by weight of detergent particles corresponding to 60 to 95% by weight based on the final tablet detergent. These binders are mixed in powder form at temperatures above the melting point of each binder component or sprayed onto the surface of the detergent particles in liquid form to coat the surface of the detergent particles with the binder. If the binder is used at less than 1% by weight, the binding strength between the detergent particles is lowered, so that tablets of appropriate strength cannot be obtained, and when used at more than 8% by weight, it is not preferable because the process difficulty occurs.

The detergent particles coated with the binder have an average specific gravity of 0.6 g / ml, preferably 0.7 g / ml or more.

As described above, the detergent particles coated with the binder are allowed to cool at room temperature or cooled by using a cold wind to allow the binder on the surface of the detergent to solidify, and then mixed with an expandable disintegrant and a granular post additive.

The expandable disintegrant used in the present invention is preferably granular. Here, granular refers to an average particle diameter of 400 microns or more, and 1 to 15% by weight based on the final tablet detergent. When less than 1% by weight, the solubility enhancing effect by the expandable disintegrant is significantly reduced, so that a tablet having excellent solubility cannot be obtained, and when used in excess of 15% by weight, the manufacturing cost increases. The reason why granular expandable disintegrants are particularly preferred is that they can expand rapidly upon contact with water to improve the solubility of the tablets, without reducing the strength of the tablets compared to powder disintegrants which have been widely used. Such granular disintegrants include cellulose or cellulose derivatives, inorganic or clay minerals containing expandable polymers, and the like.

In addition to granular disintegrants, granular postadditives are also used to improve the solubility of the tablets. Granular post-additives in the present invention are materials having an average particle size of 350 microns or more, and are added to and mixed with detergent particles coated with a binder without being coated with a binder. These granular post-additives are evenly distributed between the detergent particles coated with the binder to prevent excessive increase in strength of the tablet by the binder. That is, when tableting with only the detergent particles coated with a binder, each detergent particle is combined with the detergent particles coated with another adjacent binder to form a tablet detergent having a very high strength. In this case, even if the disintegrating agent is excellent in expansion, since the binding force between the detergent particles is relatively very strong, a tablet detergent having excellent solubility cannot be obtained. However, when the tablets are added after the addition of the granular post-additives not coated with the binder, there is a relatively weak binding portion in the tablet by the granular post-additives, and the weakly binding portions are formed into the granular expandable shelf. It is possible to obtain a tablet detergent having good solubility because the release can be disintegrated relatively easily when inflated in contact with water. In addition, by using these granular post-additives, the porosity is increased in the tablet, and water can be actively transferred into the tablet. Granular after-additives not coated with such a binder are used in the range of about 3 to 30% by weight based on the final tablet detergent. If the amount used is less than 3% by weight, the tablet-type detergent with improved solubility cannot be obtained because the binding strength of the tablet cannot be properly adjusted.However, when used in excess of 30% by weight, the cleaning component is relatively reduced, resulting in poor performance. Excellent tablet detergents cannot be obtained. On the other hand, when the particle size of the granular post-additive is less than 350 microns, the solubility enhancing effect is relatively low, and when used in large amounts, the strength of the tablet is lowered. Such granular post-additives may be used in the form of one or two or more selected from granular silicates, granular carbonates, granular ethylenediamine tetraacetic acid or salts thereof, selected from sodium percarbonate or sodium perborate as granular bleach. .

As described above, the final tablet detergent prepared from the tablet detergent composition according to the present invention has a melting point of 30-90 ° C. and a solid water-soluble high molecular material as a binder in order to obtain a tablet detergent having excellent solubility and strength. After mixing with the detergent particles containing a non-ionic surfactant or sprayed in a liquid phase and coated on the surface of the detergent particles, and then cooled to solidify the binder, the granular expandable disintegrant and granular post-additives are added and mixed It is characterized by being manufactured by tableting. However, heat-sensitive substances such as enzymes and fragrances may be added to the detergent particles coated with a binder just before tableting together with granular expandable disintegrants or granular postadditives, in particular by post-adding microcrystalline cellulose or lactose powder. It is also possible to improve the formation and storage stability of tablets.

The prepared tablet detergents were evaluated for physical properties using the following method.

1. Solubility Measurement Method

One tablet-type detergent is put in a bag made of a mesh of 60 mesh size and put into a fully automatic washing machine containing a constant 30 liters of 10 ° C. and dissolved for 3 minutes. After 3 minutes, the net is carefully taken out and the remaining tablets are weighed out to determine the weight percentage of the melted portion compared to the initial weight.

2. How to measure strength

Put 1 tablet detergent into a 15cm diameter cylinder and rotate it at 60rpm for 3 minutes. Tablet-type detergent has a regular drop motion in the cylinder, the tablet is partially broken by the impact of the drop. After three minutes of experimentation, the unbroken tablet mass is carefully removed and weighed to determine the weight percent of the unbroken portion compared to the initial weight.

Hereinafter, the present invention will be described in more detail with reference to examples and comparative examples, but the present invention is not limited to these examples.

First, a detergent base was prepared by mixing anionic surfactants, nonionic surfactants, carbonates, zeolites and polymers, optical brighteners, recontamination inhibitors (SCMC), and the like. Table 1 shows the prescriptions of the prepared detergent base.

Formulation of detergent base (unit: wt%) Item Base 1 Base 2 Base 3 LAS-NaAOS-NaAEOSoap 10 7 310 2 -15 13 20- 1 2 Zeolite 4A Soda Ash Tixolex * Sodium Sulfate Sodium Silicate SCMC Sodium Polyacrylate (Mw = 4,000) 32 35 4815 20 185 2 7- 7 -3 3 22 2 22 2 20.5 0.5 0.50.5 0.5 0.5 moisture Remaining amount remaining amount

Note: Tixolex ^* = amorphous aluminum silicate

The tablet base detergent was prepared by adding the other ingredients of the present invention to the detergent base of Table 1 as shown in Tables 2a and 2b. First, polyethylene glycol (KONIX PEG-6000F, manufactured by Korea Polyol Co., Ltd.) was mixed with detergent particles at 60 ° C. or higher, or sprayed onto the surface of detergent particles in a liquid state so that the binder was coated on the surface of the detergent particles. After the binder was solidified again into a solid phase, the ingredients as shown in Tables 2a and 2b were mixed to prepare tablet detergent having a diameter of 40 mm by weight of 40 g.

(Unit: weight%) Item Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Detergent base Base 3 Base 1 Base 2 Base 1 Base 2 Base 271.5 72.5 65.5 85.5 81.5 77.5 Binder Polyethyleneglycol ¹⁾ 2 3 2-3 2 Disintegrant PVP (50-100 μm) ²⁾ CL-CMC (90 μm) ³⁾ Clay minerals (500 μm) ⁴⁾ CL-CMC (600 μm) ⁵⁾ ----5---5---5---7 5 3--3 Post-Additives Sodium Carbonate (Average Particle Diameter 300µm) ⁶⁾ Sodium Carbonate (Average Particle Diameter 400µm) and Sodium Carbonate (Average Particle Diameter 600µm) Sodium Silicate (Average Particle Diameter 700µm) ⁷⁾ ---7-153 5--10 -10 12 15---7-7--- Microcrystalline Cellulose ⁸⁾ Enzyme Flavor -2 2 2 2 2- 0.3 0.3 0.3 0.3 0.3- 0.2 0.2 0.2 0.2 0.2 Dissolution weight% Non-damage weight% 90 92 97 42 67 7596 93 92 53 68 83

(Unit: weight%) Item Example 4 Example 5 Comparative Example 4 Comparative Example 5 Detergent base Base 3 Base 3 Base 3 Base 365.5 72.5 87.5 82.5 Binder Polyethyleneglycol ¹⁾ 5 2-5 Disintegrant PVP (50 ~ 100㎛) ²⁾ Inorganic material containing disintegrant (400㎛) ⁹⁾ Clay mineral (500㎛) ⁴⁾ CL-CMC (600㎛) ⁵⁾ ----14-----5-7 3 3 Post-Additives Sodium Carbonate (Average Particle Diameter 300µm) ⁶⁾ Sodium Carbonate (Average Particle Diameter 400µm) and Sodium Carbonate (Average Particle Diameter 600µm) Sodium Silicate (Average Particle Diameter 700µm) ⁷⁾ ----7---10--5-7 2 Microcrystalline Cellulose ⁸⁾ Enzyme Flavor 2 2 2 20.3 0.3 0.3 0.30.2 0.2 0.2 0.2 Dissolution weight% Non-damage weight% 93 96 93 8295 91 59 95

1) Polyethylene glycol = manufactured by Korea Polyol, KONIX PEG-6000F

2) PVP (polyvinylpyrrolidone) = Polyplasdone-XL10 (manufactured by ISP), having a particle size of 50 ~ 100㎛.

3) CL-CMC = Ac-Di-Sol (manufactured by FMC, cross-linked carboxymethylcellulose), average particle size of 90㎛.

4) clay mineral = bentonite, average particle size 500㎛.

5) CL-CMC = cross-linked carboxymethylcellulose with an average particle size of 600 μm.

6) Sodium carbonate = used to sieve the heavy ash of Dongyang Chemical.

7) Sodium silicate = Britesil H 265HP (manufactured by Akzo-PQ, amorphous sodium silicate), average particle size 700㎛.

8) Micro-Crystalline Cellulose = Avicel (manufactured by FMC).

9) Inorganic substance containing disintegrant = Inorganic substance containing expandable polymer, average particle size 400㎛.

As can be seen from Tables 2a and 2b, the tablet detergent prepared by the particle size of the binder, the granular expandable disintegrant and the granular post-additives, the components and the composition ratios of each component outside the scope of the present invention Solubility and strength were superior to the detergents prepared in (Comparative Examples 1, 2, 3) and composition ratios (Comparative Examples 4, 5).

In addition, the tablet-type detergent (Examples 2 to 5) of the present invention prepared by further adding fine crystalline cellulose had an effect of increasing solubility without significant difference in strength. Therefore, it is possible to manufacture a tablet detergent by freely selecting within the composition ratio range of the tablet detergent according to the present invention according to the physical properties of the tablet detergent desired.

The tablet detergent prepared by the tablet detergent composition according to the present invention is excellent in strength, and when introduced into water, disintegrates and dissolves quickly in contact with water, thereby exhibiting an excellent washing effect.

Claims (9)

(1) 60 to 95% by weight of detergent particles containing surfactants, builders and other detergent components, (2) 1 to 8% by weight of the binder, (3) 1 to 15% by weight granular expandable disintegrant, and (4) 3 to 30% by weight of granular post additive Tablet detergent composition comprising a. The tablet detergent composition according to claim 1, further comprising 0.1 to 10% by weight of fine crystalline cellulose or lactose powder. The tablet detergent composition according to claim 1, wherein the surfactant is composed of an anionic surfactant and a nonionic surfactant, and is 3 to 40% by weight based on the final tablet detergent. The tablet detergent composition according to claim 3, wherein the nonionic surfactant is at least 40% by weight of the total surfactant content. The tablet detergent composition according to claim 1, wherein the binder is one or a mixture of two or more selected from the group consisting of polyethylene glycol, polypropylene glycol and polyvinyl alcohol. The tablet detergent composition according to claim 1, wherein the granular expandable disintegrant has an average particle size of 400 microns or more, and is a cellulose or a cellulose derivative, an inorganic or clay mineral containing an expandable polymer. The method according to claim 1, wherein the granular post additive has an average particle size of 350 microns or more and is selected from the group consisting of granular silicate, granular carbonate, granular ethylenediamine tetraacetic acid or salts thereof, granular sodium percarbonate and sodium perborate. Tablet type detergent composition, characterized in that at least one selected. A tablet detergent prepared from the tablet detergent composition according to any one of claims 1 to 7, wherein the binder is mixed with a detergent particle containing the surfactant, builder and other detergent components at a temperature above the melting point or liquid After spraying the coating on the surface of the detergent particles, and then cooled to solidify the binder, the tablet-type detergent characterized in that the tablet is prepared by adding and mixing the granular expandable disintegrant and granular post additive. The tablet detergent according to claim 8, wherein the tablet-type detergent is prepared by adding, mixing and tableting microcrystalline cellulose or lactose powder together with the granular expandable disintegrant and the granular postadditive.