KR960007876B1 - Tablet detergent composition - Google Patents

Abstract

The tableted detergent composition is composed of 5-25 wt% starch for coating, 1-20 wt% water-soluble solid acid for coating and foaming, 5-40 wt% sodium bicarbonate for foaming, 0.1-10 wt% non-neutralized acid surfactant for bonding and foaming and particle detergent consisting of 0-35 wt% anion surfactant, 1-10 wt% non-ion surfactant, 5-15 wt% silica soda, 5-25 wt% zeolite and 1-10 wt% additive. When put into the laundry, the tableted detergent is broken and dissolved more rapidly than others.

Description

Tablet type detergent composition with improved solubility and strength

The present invention relates to a tablet-type detergent composition for the purpose of washing clothes, more specifically, to a tablet-type detergent composition having a function of disintegrating and dissolving at a rapid rate to wash the clothes in a washing state of the automatic washing machine It is about.

Conventional detergents are mainly in the form of powders or liquids, so dust is generated, which is not hygienic and requires the use of a measuring container. In addition, there is a disadvantage in that it is difficult to accurately put a proper amount of detergent into the washing tank even when using a measuring container. In order to solve this problem, a technique for preparing a certain amount of the detergent composition by tablet press into tablet form has been recently developed to facilitate the ease of input, accurate weighing, and hygiene. However, such a tablet detergent composition should have a rapid disintegration and dissolution when it is added to the wash water and at the same time have sufficient hardness to prevent breakage, wear, etc. of the tablet due to impact during production and storage. However, the solubility and hardness of tablets are opposite physical properties, so they must be prepared with low strength to improve solubility. To improve hardness, poor solubility occurs. Techniques for improving disintegration and solubility among conventional technologies developed to solve these problems include Japanese Patent Nos. 02311600 and 62030198, and German Patent 2753573 and Japanese Patent No. 02163149 to improve product hardness. And Korean Patent Publication No. 92-129.

In addition, Japanese Patent Nos. 02311600 and 62030198 among the techniques for improving the solubility of the product are technologies that disintegrate using carboxymethyl cellulose calcium salt, carboxymethyl cellulose magnesium salt, carboxymethyl cellulose aluminum salt, and the like as disintegration aids. Since the price of supplements is very high, there is a disadvantage in that the price of the product is increased.

Japanese Patent No. 2423322 discloses a technique of filling gas in a zeolite lattice structure with carbon dioxide, nitrogen, etc. to promote disintegration and dissolution through foaming when contacted with wash water, or to complicate the process of filling carbon dioxide and nitrogen in zeolite. There are disadvantages.

In addition, European Patent No. 39533, British Patent No. 7271, and the like attempt to improve solubility through the generation of oxygen bubbles using soda perborate or weak stability in detergent of soda perborate. There is a drawback to collapse.

Among the technologies attempted to improve the product hardness, German Patent No. 2753573 is a technology for preparing tablets under high pressure (550kgf / ㎠) after tableting by mixing alkali metal silicate and alkali phosphate as water as a binder and spray drying. Although the hardness of is improved, the process is complicated by the addition of the spraying process, and the tableting at high pressure has a disadvantage of poor solubility and has problems such as atrophy of agar due to the use of phosphate.

In addition, Japanese Patent No. 2163149 is a technology that improves the hardness of the product by coating the surface of the tablet tableted using polyvinyl alcohol, polyvinyl alcohol is hygroscopic, so the surface of the product is not smooth and the price is high, production cost There is a disadvantage that causes an increase.

Korean Patent Publication No. 92-192 attempted to improve solubility by tableting tablets at a relatively low pressure (50-100 kgf / cm 2), but the tableting process was performed due to the use of a nonionic surfactant added with high molecular weight ethylene oxide as a binder. Due to the heating process, the granulation is not homogenized, and the tablet's capping occurs due to re-expansion of the tablet's internal air due to tableting pressure, and due to the poor solubility of the high molecular weight ethylene oxide added nonionic surfactant. The poor solubility of the tablets has the disadvantage of lowering the washing power in cold wash water.

Accordingly, an object of the present invention is to prepare a tablet detergent having a large amount of cleaning active material and having a strong hardness and excellent solubility.

The inventors of the present invention, first, the reaction of the alkali metal carbonate and the water-soluble solid acid in the acidic region is easy to foam the carbon dioxide, second, when the binder of the granulation agent before tableting granules through the surface coating the hardness of the product Third, when an absorbent material is coated on the surface of the granules, the alkali metal carbonate foams strongly, causing rapid dissolution. Fourth, the uncoated ionic surface activity of the material coated on the surface of the granules is unneutralized. In the first case, high-strength, high-solubility tablet-type detergent composition is based on the discovery that it increases the adhesion of each particle and at the same time shows acidity by contact with the wash water and increases the solubility by foaming by neutralization reaction with alkali metal carbonate. Developed.

The present invention comprises 10 to 35% by weight of anionic surfactant, 1 to 10% by weight of nonionic surfactant, 5 to 15% by weight of sodium silicate, 5 to 25% by weight of zeolite and 1 to 10% by weight of other additives. Granular detergent containing; 5 to 25% by weight of starch as coating component, 1 to 20% by weight of water soluble solid acid as coating and foaming component, 5 to 40% by weight of sodium bicarbonate as foaming component, 0.1 to 10 unneutralized acidic surfactant It provides a tablet detergent composition comprising a weight percent.

According to the present invention, 10 to 35% by weight of anionic surfactant, 1 to 10% by weight of nonionic crab active material, 5 to 15% by weight of sodium silicate, 5 to 25% by weight of zeolite, antifoaming agent, fluorescent agent, enzyme, etc. A granular detergent was prepared by mixing 1 to 10% by weight of additives, and 0.1 to 10% by weight of an unneutralized acidic surfactant alcohol solution was dissolved in alcohol (concentration 5 to 95% by weight) on the outside of the detergent. 40 wt%, 5-25 wt% starch, 1-20 wt% water-soluble solid acid, coated into granules with a particle size of 600-1400 μm, dried, and then 1-10% of other disintegration aids in the coated granular detergent. To uniformly add, mix and tablet to a pressure of 30 to 70kgf / ㎠ GAUGE to prepare a tablet detergent product.

The tablet-type detergent composition prepared by the method of the present invention is a tablet detergent composition prepared by neutralizing the alkali metal carbonate, the water-soluble solid acid coated on the granular surface and the unneutralized acidic surfactant when it is added to washing water. Disintegration rate is accelerated. Furthermore, when tablets are prepared by tableting a mixture of conventional alkali metal carbonates, water-soluble solid acids and surfactants, they act as binders of surfactants and are strongly bound to each other so that the tablets do not disintegrate well. Unneutralized acidic surfactants act as binders between granules to increase the strength of tablets, while foaming by neutralization reactions with alkali metal carbonates in washing water, promoting the disintegration rate between particles and strengthening the intergranular bonding ability. After being neutralized, it acts as a cleaning ingredient, thereby enhancing the cleaning power.

In addition, the starch coated on the surface of the granules absorbs the wash water when the tablet is put into the wash water, thereby facilitating the disintegration of sodium bicarbonate and the water-soluble solid acid present in the tablet.

Examples of the anionic surfactant include sodium alkylbenzenesulfonate having 11 to 17 carbon atoms in the alkyl group, alphaolefin sulfonate having 10 to 18 carbon atoms in the alkyl group, alkylsulfonate having 12 to 18 carbon atoms in the alkyl group, and the like. When the substance is used in an amount of 10% by weight or less, the detergency is reduced, and in the case of using 35% by weight or more, since the mutual bonding force is enhanced and the disintegration rate of the tablet is decreased, it is preferable to use 10 to 35% by weight.

It is preferable to use 1-10 weight% of alkyl polyoxyethylene which added 7-9 mol of ethylene oxide to a C11-C13 linear alkyl group as a nonionic surfactant. When using less than 1% of nonionic surfactants, the cleaning power is lowered, and when used more than 10%, the price rises and the flowability of granules is deteriorated.

Sodium silicate is used as a component of the tax information, and both ortho and meta may be used, but the use of sodium metasilicate is preferable. If the sodium silicate is 5% by weight or less, the function as the bath aid component is weak, and the cleaning power is lowered. If the amount of sodium silicate is 15% or more, the alkalinity is greatly increased and the disintegration rate of the tablet is lowered.

Zeolite is used to improve the washing power in hard water due to its soft water softening property. If the zeolite is 5 wt% or less, the soft water softening power is weakened. It is preferable to use 5 to 25% by weight.

Starch is coated on the outside of the cleaning granules in the form of fine particles and absorbs moisture when it is put into the washing water, thereby facilitating the foaming of the carbon dioxide gas by the reaction of the alkali metal carbonate and the water-soluble solid acid inside the tablet. In addition, by weakening the binding force between the particles to help the tablets disintegrate when the tablet detergent is added to the wash water, and also improves the lubrication and release property of the tablet during tableting. Starch is used in the range of 5 to 25% by weight, the starch is less than 5% by weight, the disintegration rate of the tablet is reduced, if more than 25% by weight the tablet hardness is weakened, the product value due to breakage during production, transportation and storage It may fall and the amount of the cleaning active substance is reduced, which may lower the cleaning power.

The water-soluble solid acid reacts with the alkali metal carbonate to generate carbon dioxide and promote disintegration. When the content of water-soluble solid acid is 1% by weight or less, the foaming amount of carbon dioxide gas is reduced, and the disintegration rate is decreased. When the content of water-soluble solid acid is 20% by weight or more, the alkalinity of the cleaning solution is lowered, which lowers the cleaning power. desirable.

The unneutralized acidic surfactant used as the binder and the blowing agent may be used, such as alkylbenzenesulfonic acid having 11 to 17 carbon atoms of an alkyl group, alphaolefinsulfonic acid having 12 to 18 carbon atoms of an alkyl group, alkylsulfonic acid having 12 to 18 alkyl groups, and the like. It is used in the granulation process by melting and as a binder between the starch and the water-soluble solid acid, and as a binder between the granules during tableting to increase the strength of tablet detergents. In addition, when it is added to the wash water to neutralize the alkali metal carbonate and the carbon dioxide gas is foamed on the surface of the granules to promote the disintegration effect, and after neutralization also acts as a cleaning component to increase the strength. The content of the unneutralized acidic surfactant is appropriately 0.1 to 10% by weight, and when the concentration of the unneutralized acidic surfactant is 0.1% by weight or less, the binding force and foaming power are weak. Disadvantages such as longer disintegration time.

Alcohol, which is used for dissolving unneutralized acidic surfactants in the coating process and coating starch, water-soluble solid acid coating and granulating agent, may be methanol, ethanol, propanol, butanol and isopropanol, among which ethanol is toxic. Small, low cost, low boiling point has the advantage of easy removal when drying. The concentration is suitably 5 to 95% by weight and is removed by evaporation in the drying process. If the concentration of the alcohol solution of the unneutralized acidic surfactant is 5% by weight or less, the absolute amount of the unneutralized acidic surfactant contained is insufficient, thereby weakening the binding strength of the granulated particles, and foaming by neutralization of the unneutralized acidic surfactant and the water-soluble solid acid. Disintegration and solubility is lowered due to the decrease in force, and the viscosity of the solution is higher than 95% by weight, resulting in difficulty in uniform coating of granules and deterioration in cleaning power due to lower pH of the cleaning solution.

Alkali metal carbonates neutralize reactions with water-soluble solid acids and unneutralized acidic surfactants, releasing carbon dioxide and facilitating disintegration of tablets, and either carbonic acid or bicarbonate can be used. The use of sodium bicarbonate is more efficient. If the alkali metal carbonate content is less than 5% by weight, the neutralization reaction with the water-soluble solid acid and the unneutralized acidic surfactant is weak, and the disintegration is not performed well. 5 to 40% by weight is appropriate because it occurs, the specific gravity difference between the granules and the water-soluble solid acid and the amount of powder increases, resulting in a weakening of the binding force during tableting.

Other additives may include antifoaming agents, fluorescent agents, enzymes, antifouling agents, and fragrances. The amount of these additives is preferably used in an amount of 1 to 10% by weight, and when the amount of these additives is 1% by weight or less, It is hard to show the effect, and if it is 10% by weight or more, the production cost increases, so it is not economical.

As other optional ingredients, disintegration aids may be used. As disintegrants, sodium starch gluconate, carboxymethyl cellulose calcium substituents, and the like may be used, which may be used up to 15% by weight. A higher content leads to an increase in production cost, which is uneconomical.

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated based on an Example.

A granular detergent is prepared by mixing a fluorescent agent, an antifouling agent, a fragrance, etc. with an anionic surfactant, zeolite, sodium silicate and other additives in the composition ratio shown in Table 1. Completely coat the starch and the water-soluble solid acid with alcohols in which the unneutralized surfactant is dissolved as a binding agent and blowing agent, and then dry to remove the alcohol, and mix the disintegrating agent with alkali metal carbonate and optional components in the dried granular composition. Tableting composition is prepared by tableting at a pressure of 70 to 100 kgf / cm 2 in a tablet press.

Example 1

Tablet type detergents A to E, which are the compositions shown in Table 1 above, are prepared using alkylbenzenesulfonic acids having 11 to 17 carbon atoms of an alkyl group as a bonding and blowing agent.

Example 2

Tablet type detergents F to J, which are the compositions shown in Table 1 above, were prepared using alpha-olefinsulfonic acids having 10 to 18 carbon atoms of an alkyl group as the bonding and blowing agent.

Example 3

Tablet type detergents K to O, which are the compositions shown in Table 1 above, are prepared using alkylsulfonic acids having 12 to 18 carbon atoms of an alkyl group as a bonding and blowing agent.

The tablet-type detergent prepared in the above example was made into a tablet having a thickness of 10 mm by applying a pressure of 70 kgf / cm 2 in a cylinder-type mold having a diameter of 50 mm, and then the cleaning power and solubility were measured as follows. Here, the size and shape of the tablet is not used to limit the present invention, it is used to explain the present invention, the size of the tablet is 1 to 1.5kg of detergent can be added per 1 liter of wash water It is the size, and the shape of the tablet may be any shape, such as a circle, a square, but in the embodiment for the convenience of manufacture was prepared in a circle.

1) Solubility

The tablet-type detergent prepared in the above embodiment was added to a tablet detergent composition having a diameter of 50 mm and a thickness of 10 mm to 10 l of washing water of 20, and then the tablets were disintegrated to measure the time when completely passing through the 10 mesh network. 2 is shown.

2) cleaning power

The tablet detergent prepared in the above Example was subjected to a washing power test under the following conditions, and the measurement results are shown in Table 2.

Measuring device: Terg-O-Tometer

Cleaning temperature: 20 ℃

Washing water: Hardness 40ppm Ca , 10 ppmmg

Bath ratio: 4.5g contaminated cloth / 1ℓ washing water

Detergent concentration: 0.15% solution (1.5g / 1ℓ washing water)

Contaminated fabric: EMPA Art No. 101 (olive oil, carbon black / ais)

Evaluation: The comparative example was set to 100 and it converted into washing power.

3) hardness test

Table 2 shows the results of measuring the hardness of the tablet detergent prepared by the above Example using a tablet hardness tester (EUREKA Tablet Hardness Tester).

4) wear and tear test

When the tablet-type detergent prepared by the above example was dropped at a height of 30 cm into a plastic cylinder (30 cm in diameter and 15 cm in height) rotating at 25 rpm, the weight loss was calculated by specifying the loss ratio. The measurement results are shown in Table 2.

As shown in Table 2, the tablet detergent of the present invention has excellent solubility, high hardness, low wear rate, and excellent cleaning power.

Claims (12)

Granules containing 10 to 35% by weight of anionic surfactant, 1 to 10% by weight of nonionic surfactant, 5 to 15% by weight of sodium silicate, 5 to 25% by weight of zeolite and 1 to 10% by weight of additives Type detergent; 5 to 25% by weight of starch as coating component, 1 to 20% by weight of water soluble solid acid as coating and foaming component, 5 to 40% by weight of sodium bicarbonate as foaming component, 0.1 to 10 unneutralized acidic surfactant A tablet detergent composition comprising a weight percent. The tablet according to claim 1, wherein the anionic surfactant is selected from sodium alkylbenzenesulfonate having 11 to 17 carbon atoms in the alkyl group, alphaolefinsulfonate having 10 to 18 carbon atoms in the alkyl group and alkyl sulfate having 12 to 18 carbon atoms in the alkyl group. Type detergent composition. The tablet detergent composition according to claim 1, wherein the nonionic surfactant is alkylpolyoxyethylene to which 7 to 9 mol of ethylene oxide is added to a C11-C13 linear alkyl group. The tablet composition of claim 1, wherein the additives are antifoams, fluorescent agents, enzymes, antifouling agents, and flavors. The tablet detergent according to claim 1, wherein the unneutralized acidic surfactant is selected from an alkylbenzenesulfonic acid having 11 to 17 carbon atoms of an alkyl group, an alphaolefinsulfonic acid having 10 to 18 carbon atoms of an alkyl group and an alkylsulfonic acid having 12 to 18 carbon atoms of an alkyl group. Composition. The tablet detergent composition according to claim 5, wherein the unneutralized acidic surfactant is dissolved in methanol, ethanol, propanol, butanol and isopropyl alcohol and used for granulation and coating of the granular detergent. Granular detergent is prepared by mixing 10 to 35% by weight of anionic surfactant, 1 to 10% by weight of nonionic surfactant, 5 to 15% by weight of sodium silicate, 5 to 35% by weight of zeolite and 1 to 10% by weight of additives. 0.1 to 10% by weight of the unneutralized acidic surface active substance was dissolved in alcohol, and 5 to 40% by weight of sodium bicarbonate, 5 to 25% by weight of starch and 1 to 20% by weight of a water-soluble solid acid were prepared. A method of manufacturing a tablet detergent composition characterized in that the coating is prepared by granules having a particle size of 600 to 1400 μm, dried, and then added by mixing and mixing the alkali metal carbonate to the coated granular detergent. 8. The anionic surfactant according to claim 7, wherein the anionic surfactant is selected from sodium alkylbenzenesulfonate having 11 to 17 carbon atoms of the alkyl group, alphaolefin sulfonate having 10 to 18 carbon atoms of the alkyl group and alkyl sulfate having 12 to 18 carbon atoms of the alkyl group. Method for producing a tablet detergent composition. 8. The method for producing a tablet detergent composition according to claim 7, wherein the nonionic surfactant is an alkylpolyoxyethylene having 7 to 9 moles of ethylene oxide added to a C11-C13 linear alkyl group. 8. The method of claim 7, wherein the additive is an antifoaming agent, a fluorescent agent, an enzyme, an antifouling agent, and a fragrance. The tablet detergent according to claim 7, wherein the unneutralized acidic surfactant is selected from an alkylbenzenesulfonic acid having 11 to 17 carbon atoms of an alkyl group, an alphaolefinsulfonic acid having 10 to 18 carbon atoms of an alkyl group and an alkylsulfonic acid having 12 to 18 carbon atoms of an alkyl group. Method of Preparation of the Composition. The method of claim 7, wherein the unneutralized acidic surfactant is dissolved in methanol, ethanol, propanol, butanol, and isopropyl alcohol, and used for granulation and coating process of granular detergent.