KR100346812B1 - Composition for Tablet Detergent - Google Patents

Abstract

The present invention relates to a tablet-type detergent composition having the advantage that it is easy to handle when not in use, does not generate dust and does not need to be weighed separately to prevent excessive use. Detergent composition of the present invention using a suitable disintegrant, disintegration aids, binders, organic salts, lubricants in an appropriate amount of excellent disintegration ability to dissolve well in water, long-term storage stability and excellent strength because it does not break during transportation use Is possible.

Description

Tablet Detergent Composition {Composition for Tablet Detergent}

The present invention relates to a composition of a tablet laundry detergent used for washing clothes. More specifically, the present invention contains polysodium acrylate as a disintegrant, so that it has excellent disintegration ability, solubility in water, long-term storage stability and breakage during transportation use, excellent strength, and easy to handle because it does not get wet when used. It does not need to be weighed separately relates to a tablet-type laundry detergent composition that can prevent excessive use.

Conventional detergents are mainly in the form of powders or liquids, so they do not get hygienic due to dirt on hands and when used, and there is also inconvenience of using a measuring container. In order to solve this problem, a technique for preparing tablets by tableting a certain amount of detergent has been recently developed. Such tablet detergents are easy to handle and do not get dirty when used, and do not generate dust, and do not need to be weighed separately, and thus there is an advantage of preventing excessive use.

However, these tablet detergents must dissolve quickly when the tablet detergent is added to the wash water to have an effect, and the strength of the tablet should be increased so as not to break during transport and storage. However, in the case of preparing tablet detergent using high pressure, tablets have high strength, but tablets are not easily dissolved.If tablet pressure is reduced to increase tablet solubility, commodity value decreases due to breakage of transport and storage. Is generated.

British Patent GB 2318575 discloses a method for preparing a tablet detergent, containing 7-50% of sodium acetate trihydrate and sodium citrate dihydrate, and containing 2-20% of a water-soluble binder, in particular, the particle size of sodium acetate is 0.3 mm. In the above case, it is described that disintegration is excellent. In addition, British Patent GB 2320544 uses a liquid phase having a viscosity of 1000 cps or less at room temperature so that the proportion of pores is 5% or more. The water-soluble builder uses sodium carbonate and sodium citrate as 15 to 85% to disintegrate. Explain that it improved. However, these manufacturing methods are suitable for the drum washing machine of the European style and do not meet the washing conditions of short washing time and low temperature like in Korea. These detergents are tablet-type detergents suitable for Europe with a low surfactant content and containing bleach.

In addition, Japanese Patent JP9-87696 discloses a nonionic surfactant having a melting point of 40 ° C. or lower, 10 to 35% of AE having a HLB of 9 to 16, and an oil absorption of 30 to 70 ml / 100 g. Although it describes a composition of a tablet-type non-ionic detergent, characterized in that it contains ˜10%, the patent is characterized by minimizing the dissolution of non-ions, and also the compression of non-ions due to fusion with the builder during compression Due to the dissolution of the tablet-type detergent into water does not occur well.

Accordingly, the present inventors have conducted numerous studies and experiments to solve the above-mentioned disadvantages of the prior art. As a result, polysodium acrylate was used as a disintegrating agent, and a disintegration aid, a binder, an organic salt, a lubricant, and the like, if necessary, were combined. In the case of excellent disintegration, as well as excellent long-term stability, the strength of the tablet was also found to complete the present invention.

The present invention relates to a tablet detergent composition comprising a disintegrant used in tablet detergents containing 0.1 to 10% by weight of polysodium acrylate having a degree of crosslinking of 50 to 99% and a molecular weight of 300,000 to 3 million.

More specifically, the present invention relates to tablet detergent compositions containing disintegrants, disintegration aids, salts, lubricants and binders.

Polysodium acrylate is essentially used as the tablet detergent composition disintegrant of the present invention. This material is substituted with Na ions in polyacrylic acid, and the degree of substitution is 70% or more, and the degree of neutralization is 40 to 98%. In addition, it has a degree of crosslinking of 50 to 99%, and the molecular weight of the polymer material is about 300,000 to 3 million. When the degree of crosslinking is 50% or less, the ability to disintegrate upon contact with water of the polysodium acrylate, which is a disintegrant, may be lowered. Such polymeric materials are used in the tablet detergents in an amount of 0.1 to 10% by weight, preferably 0.2 to 8% by weight. When the usable disintegrant is used in excess of a given range, the cleaning power is lowered, and there is a problem that the raw material cost is increased due to a lot of expensive components. In addition, when the amount is too small, the disintegration power is poor, the tablet does not dissolve, there is a problem that can not function as a laundry detergent.

In addition to polysodium acrylate, the tablet detergent composition of the present invention may contain starch and its derivatives, corn starch, rice starch, potato starch, carboxymethyl starch, sodium starch glyconate, cellulose and its derivatives, sodium carboxymethyl cellulose, crosslinked cellulose It contains one or two or more disintegrants selected from fiber, synthetic organic polymer and crosslinked polyvinyl pyrrolidine, or inorganic materials such as bentonite, clay and loess may be used.

As disintegration aids, microcrystalline cellulose is mainly used. These disintegration aids, as well as disintegrant, as well as exhibit a disintegration ability, and when used in combination with the disintegrant will have a synergistic effect, in particular to help maintain the strength by increasing the binding strength of the tablet. Disintegration aids are used 0.2 to 10% by weight, preferably 0.3 to 8% by weight. Excessive use of these disintegration aids is expensive, resulting in an increase in raw material costs. When the amount is less than the reference value, there is a problem that tablets are not easily disintegrated.

Salts help the tablets to dissolve well due to the high solubility and dissolution rate of the salts themselves. In particular, the salts dissolve well in water, which greatly helps disintegrants play a role. Such salts can be used organic salts such as sodium acetate trihydrate, sodium acetate anhydrate, potassium acetate, sodium citrate dihydrate, urea derivatives, and inorganic salts such as sodium chloride and potassium chloride. Salts listed above can be used individually or in mixture of 2 or more types.

The salts to increase the dissolution rate is preferably used 0.5 to 40% by weight, preferably 1 to 35% by weight. When the salt content is used more than 40% by weight, the disintegration is good, but the washing power is relatively lowered to lose the original function of the laundry detergent, when using less than 0.5% by weight there is a problem that disintegration is not good.

In addition to the detergent composition of the present invention, a binder may be further used to increase the binding force of the tablet. As the binder, polyethylene glycol or polypropylene glycol having an average molecular weight of about 1500 to 8000 is often used. In addition, polymers such as polyvinylpyrrolidone, polyacrylate, water-soluble acrylate copolymers, silicones, starches, celluloses and the like can also be used. These can be used individually or in mixture of 2 or more types. In the case of such a binder, the tablet may be used after dissolving the tablet in a liquid phase before spraying the tablet into a liquid phase, or by mixing the granulated detergent particles themselves.

Although the physical properties of the tablet itself are very important, being well produced in the process is also a very important problem. Glidants are substances that make tablets well in the process. Glidants act as lubricants to prevent tablets from sticking to the tablet press during tableting. As the lubricant, one or two or more of calcium stearate, magnesium stearate, sodium benzoate, silica, talc, clay, silicate, zeolite, bentonite and the like can be used. These lubricants are used in an amount of 0.2 to 5% by weight. When the lubricant is used in excess of 5% by weight, the binding strength of the tablet is weakened, so that the tablet is not easily made, and dust is blown out in the process, resulting in a poor working environment. When it is used less than 0.2% by weight, it does not function as a lubricant and sticks to the mold of the tableting machine, thereby degrading workability.

In addition to these components, surfactants and alkali builders, which are basically used components of the laundry detergent, are as follows.

As the surfactant that can be used, anionic surfactants, nonionic surfactants, and the like can be mainly used. Anionic surfactants that can be used in the present invention is a linear alkylbenzenesulfonate (R- -SO ₃ Na: R = C ₁₀ -C ₁₄ alkyl), Fatty acid salt (R-CH ₂ -COONa: R = C ₁₄ -C ₁₆ alkyl), Alkanesulfonate (R ₁ = CH-SO ₃ Na: R ₁ = C ₁₁ -C ₁₈ alkyl), an alpha olefin sulfonate (R-CH = CH- (CH ₂ ) _n -SO ₃ Na, n = an integer of 9-15, R = C ₁₂ -C ₁₈ alkyl) One or more species may be mentioned. In addition, as a nonionic surfactant,

Alkylethoxylates (R-CH-CH ₂ -O (CH ₂ -CH ₂ -O) nH),

Oxo alcohol polyethylene glycol ether

(R- -CH ₂ -O (CH ₂ -CH ₂ -O) n H: R + R '= C ₁₁ -C ₁₈ alkyl, n = 3-15),

Fatty acid alkanolamides

Etc. can be used.

In addition, a small amount of the cationic surfactant and the amphoteric surfactant may be used. These surfactants use a total of 10 to 40% by weight. When the amount exceeds 40% by weight, it is difficult to prepare detergent particles, and when the tablet is too thick, the particles are too thick and stick to the mold. When less than 10% by weight, there is a problem that the cleaning ingredients are too small to wash well.

As builders, carbonates (e.g. sodium carbonate (Na ₂ CO ₃ ) or sodium bicarbonate (NaHCO ₃ )), zeolites, silicates (e.g. layered crystalline) can be used to enhance the cleaning power of the aforementioned surfactants. α-Na ₂ SiO ₃ or β-Na ₂ SiO ₃ ), phosphates (eg orthophosphoric acid, pyrophosphoric acid, tripolyphosphoric acid, tetrapolyphosphoric acid or salts thereof), phosphonates (eg , Diethylenetriaminepentamethylenephosphonate, aminotrimethylenephosphonate, 1-hydroxyethylene-1, 1-diphosphonate), nitrilotriacetic acid or salts thereof, ethylenediaminetetraacetic acid or salts thereof, carboxymethyl Cellulose, polyethylene glycol, polyvinyl alcohol, polyvinylpolydon, polyacrylic acid or its salts, copolymers of maleic acid and vinyl ether or salts thereof or sulfates thereof can be used. These builder components are used in 10 to 60% by weight. When these components exceed 60% by weight, the content of the surfactant is relatively lowered to mask the lowering of the washing power, and the solubility is lowered due to the increase of the inorganic material during washing. In addition, when used less than 10% by weight it is difficult to form the tablet because the particle formation is not good.

In addition to the above-mentioned components, the detergent composition of the present invention may be used as an additive as an optical brightener (e.g., stilbene biphenyl, pyrazoline, fumarine or quinolone), an enzyme (e.g., protease, amylase, Lipases or cellulase), bubble control agents (for example, fatty acids, silicones, paraffin waxes) and the like. These additives can be used 0.5 to 10% by weight. If the content of the additive is less than 0.5% by weight, the performance of the additive cannot be exhibited. If the content of the additive is more than 10% by weight, the price is expensive and uneconomical.

EXAMPLES Hereinafter, the present invention will be described in detail with reference to Examples, but the technical scope of the present invention is not limited to these Examples.

Comparative Examples 1 to 4 and Examples 1 to 4

After tableting using a detergent composition having the ingredients and contents of Table 1, the physical properties thereof were compared and evaluated.

3: AE-7 (Korean Polyol)

6: polysodium acrylate (Na ion substitution degree, neutralization degree, crosslinking degree: 70% or more respectively)

Ac-Di-Sol (crosslinked cellulose, FMC Corp)

Polyplasdon (crosslinked polyvinylpyrrolidone, ISP-Korea)

7: Avicel PH 200 (FMC Corp)

9: polyethylene glycol (PEG4000)

10: magnesium stearate

11: fragrance, bubble control agent, enzyme, fluorescent agent

In the above detergent production method, Na ₂ CO _{3 is added} to a conventional detergent preparation mixer, LAS and fatty acid are added thereto, and then neutralized by adding AE-7, a nonionic surfactant, to form particles, followed by surface modification using zeolite. After making particles with good fluidity, a disintegrating agent, a disintegrating aid, a binder, a salt, a lubricant, and other additives were added to prepare tablets using a tableting machine.

Experimental Example 1: Detergency and disintegration test of tablet detergent according to the present invention

The cleaning and disintegrating powers of the powder detergents prepared according to Comparative Examples 1 to 4 and Examples 1 to 4 were evaluated under the following conditions.

1) Detergent evaluation test

Washing Machine: Terg-O-Tometer

Cleaning temperature: 25 ℃

Number of washes: hardness 80 ppm Ca ++, 20 ppm Mg ++

Bath ratio: 4.5g contaminated cloth / ℓ washing water

Contaminated salt: EMPA Art No. 102

(Olive oil, carbon black / blend (polyester / cotton))

Detergent Concentration: 0.67g / ℓ

Evaluation: Converting the cleaning power to Comparative Example 1 as 100

2) disintegration evaluation

The disintegrating property is obtained by placing a tablet-type detergent in a trivet-shaped steel structure that allows a tablet-type detergent to be placed at a height of 10 cm in a 1-liter beaker. The tablet-type detergent is a disintegration time by measuring the time when the cross-shaped tricycle completely disintegrates at the top and completely disappears at the top.

3) Breaking strength measurement

Maximum fracture strength is measured using a compressive strength gauge (model name: Zwicki 1120, Zwick, Germany).

The test results are shown in Table 2 below.

As can be seen from the data in Table 2, the tablet-type detergent (Examples 1 to 4) according to the present invention can be seen that not only has excellent breaking strength but also disintegrates easily within 2 minutes. However, in the comparative example, when a disintegrant used in general, rather than the disintegrant used in the present invention, was used (Comparative Examples 1 to 4), the disintegration time used in the present invention was much longer than when used alone or in combination. The compressive strength was also very weak. Therefore, it can be seen that polysodium acrylate, which is a disintegrant used in the present invention, is superior to conventional disintegrants.

The tablet detergent composition of the present invention is excellent in disintegration ability, solubility in water, long-term storage stability and excellent strength because it does not break when used in transport, and also easy to handle and do not need to be weighed separately because it does not get wet when used. Excessive use can be prevented. Therefore, the present invention is very useful industrially.

Claims (6)

A disintegrant used in tablet detergents, the tablet detergent composition comprising 50 to 99% crosslinking degree and 0.1 to 10% by weight of polysodium acrylate having a molecular weight of 300,000 to 3 million. The method of claim 1, wherein starch and its derivatives, corn starch, rice starch, potato starch, carboxymethyl starch, sodium starch glyconate, cellulose and its derivatives, sodium carboxymethyl cellulose, crosslinked cellulose, fiber ), A tablet detergent composition further comprising one or two or more selected from synthetic organic polymers and crosslinked polyvinylpyrrolidone. The tablet detergent composition according to claim 1 or 2, further comprising conventional disintegration aids, salts, lubricants and binders. The tablet detergent composition according to claim 3, wherein microcrystalline cellulose is used as a disintegration aid. The organic acid salt of sodium acetate trihydrate, sodium acetate, potassium acetate, sodium citrate dihydrate, urea derivatives, and inorganic salts such as sodium chloride and potassium chloride are used as salts. Tablet detergent composition The tablet detergent composition according to claim 3, wherein at least one selected from calcium stearate, magnesium stearate, sodium benzoate, silica, talc, clay, zeolite and bentonite is used as a lubricant.