KR20020014270A - Detergent Composition containing orange D-limonene - Google Patents

Abstract

PURPOSE: A detergent composition for clothes is provided, which contains D-limonene of the orange extract to improve the cleaning power, the biodegradation velocity and the retention time of perfume and to reduce the discoloration. CONSTITUTION: The detergent composition comprises 10.0-20.0 wt% of D-limonene; 5.0-15.0 wt% of a natural fatty acid palm oil; 0.3-0.7 wt% of n-alkyldimethylbenzyl ammonium chloride; 3.0-7.0 wt% of ethyl alcohol; and the balanced of water. Preferably D-limonene is controlled to make the surface tension be 40 dyne/cm at a temperature of 20 deg.C by mixing it with water with a vacuum mixer.

Description

Detergent Composition containing orange D-limonene

The present invention relates to a laundry detergent composition containing an orange extract, and more particularly to an oil-in-water emulsion detergent composition in which the orange extract D-limonene is emulsified and dispersed in water.

Washing in textiles is a process to remove various dirt left on the surface of the cleaned object, such as grease, wax, grease, dust, sweat, coffee, and other foreign substances through chemical or physical mechanisms to make clean and fresh clothes. Say

The mechanism of washing has not yet been clearly identified, but can be explained by the following process.

1) the process of washing cleansing liquid to wet and penetrate dirt;

2) the process of separating the dirt from the washcloth such as fibers or clothing;

3) dispersing and protecting the particles of dirt in the cleaning liquid;

4) Removal process of dirt

Its mechanism is the basis of the theory of interfacial chemistry, 1), 2), and 3) are mainly dependent on the detergent's own performance, and 4) is a physicochemical process that promotes the action of the detergent and achieves cleanliness. Can be seen as.

Problems arising from the processes 1), 2), and 3) include the fact that a large amount of foam, which is the main culprit of environmental pollution, and separate products due to the characteristics of each product, such as washing, rinsing, antistatic, and sterilization. Environmental water pollution and economic losses from use.

Therefore, the development of a detergent that is easy to remove the detergent due to the low generation of foam and excellent cleaning power, which can be solved at the same time washing, rinse, antistatic, sterilization, etc. is urgently required.

By the way, the detergent used conventionally was a composition containing inorganic substance, using a nonionic surfactant, and adding the solvent.

Specifically, inorganic materials include soda salts such as sodium hydroxide and sodium carbonate, silicates such as sodium ortho silicate and sodium metasilicate, sodium primary phosphate, sodium triphosphate, sodium tripolyphosphate and sodium pyrophosphate. Phosphates such as hexametaphosphate and the like have been used.

Such an inorganic material is invisible after washing, but remains in the object to be cleaned, causing static electricity, etc., and promoting re-contamination.

On the other hand, the use of nonionic surfactants causes yellowing during prolonged exposure and not only causes phase separation but also generates bubbles.

Often as a solvent, a chlorine solvent. Special solvents such as petroleum solvents and other glycol ethers have been used.

However, solvents are often environmentally regulated substances, which is undesirable in terms of water quality and soil pollution.

Therefore, it is urgently needed to develop a detergent composition that can solve the problems occurring in the detergent composition of such a composition while excellent in cleaning power.

Thus, the present inventors are low-foaming, do not need to use a separate rinse agent, and while research efforts to develop a detergent with excellent sterilization, deodorizing power, etc., using the extract of orange peel as a main ingredient, using natural fatty acid palm oil as a base As a result, the orange-specific scent continued to realize a significant antistatic effect and excellent flexibility to complete the present invention.

Accordingly, an object of the present invention is to provide a detergent composition that is low foaming, sterilization and deodorizing ability is improved, exhibits excellent washing effect, anti-contamination prevention, antistatic effect and stable.

The detergent composition of the present invention for achieving this purpose is 10.0 to 20.0% by weight of D-limonene, 5.0 to 15.0% by weight of natural fatty acid palm oil, 0.30 to 7.0% by weight of n-alkyl dimethyl benzyl ammonium chloride, 3.0 to 0.7% by weight of ethyl alcohol It is characterized by consisting of% and the rest of the water.

Referring to the present invention in more detail as follows.

Orange extract as a main component in the detergent composition of the present invention is specifically D-limonene (D-Limonene).

D-limonene is a substance extracted from the orange peel which is easily encountered at home, and is a monocyclic terpen which is usually obtained as a by-product from citrus sugar production. It is obtained by steam distillation of citrus peel and pulp from citrus juice production, with about 94 to 98% oily. Di-limonene is almost completely harmless to the human body and the environment, and is particularly useful as a solvent for oil pollution such as milk, chocolate, lipstick and the like. In addition, there is a strong detergency and fragrance function, and the literature on the toxic stability of D-limonene has recently been poured out (for example, Veterinery Clinics of North America; Small Auimal Parclice P 383 Vol. 20 No. 2 1990). In addition, its use is also diverse, and is considered as an alternative to chlorinated solvents, freons, and CFCs, as well as disinfectant functions, cleaning functions, tar and asphalt cleaners, portable cleaners and floor cleaners. European Patent No. 0467660, Japanese Patent No. 61-238940). D-limonene is 1-methyl-4- (1-methylethenyl) sirolohexene, and is represented by the following Chemical Formula 1.

D-limonene, an oil-based formulation material, is used together with nonionic surfactants to enhance the cleaning function and to give a clean image. The use amount of D-limonene is preferably 10.0 to 20.0% by weight, and when used at less than 10.0% by weight, the cleaning effect is excellent, but the fragrance effect is insignificant, and when used in excess of 20.0% by weight, it is difficult to emulsify.

However, D-limonene is an oil that is not compatible with water and is emulsified in water to be used as an oil in water (O / W) emulsion detergent. At this time, unlike a solvent commonly used in detergents, it is a common interface. It is difficult to emulsify with an active agent. Once emulsified, it exists in an unstable colloidal state, so when skin protectants, antistatic agents, and other additives are added, the stability at high or low temperatures is inferior.Therefore, they are easily separated and shaken when used. .

D-limonene has lower surface tension than water. Specifically, D-limonene has a surface tension of 20 dyne / cm (20 ° C.), and in the case of water, 72.25 dyne / cm (20 ° C.).

The smaller the surface tension of the liquid is because the surface holding force is smaller, the surface is unstable and easily mixed with other liquids. Thus, the contaminants are easily decomposed. On the other hand, water and D-limonene do not fuse with each other because of the large difference in interfacial tension. Therefore, it is difficult to emulsify with a general emulsification method. After all, the preferred emulsification method is to reduce the surface tension to improve soil wetting by the cleaning agent, which is important for improving adhesion.

In view of this, in the present invention, when the D-limonene is mixed, a specific homogenizer, specifically, a process of homogenizing using a vacuum mixer (Vaccum-Homo Mixer), causes the interfacial tension to drop below 40 dyne / cm (20 ° C.). Drop.

Referring to the homogenization using a vacuum mixer in more detail as follows.

The stirring part, which consists of the blade rotating at high speed and the homogenizer head attached to the stator rod, maintains about 0.5mm between the radial blade inside and the blade connected directly to the shaft and rotates hundreds or thousands of times. It is a principle to control and homogenize according to (viscosity). The pressure difference between the top and bottom of the wing caused by the high speed rotation of the blades acts as a pump and sucks the agitating liquid from the bottom of the blades. The upstream is flowed by the current plate and again downstream to the tank side, and the convection of the descending liquid is continuously convection under the vessel again without interruption and stirred.

This stirring principle causes D-limonene and natural fatty acid palm oil to be mixed with other aqueous solutions to form an emulsified state and form a colloidal, chemical but relatively stable solution.

Homogenization using a vacuum mixer can maintain stability.

In addition, since D-limonene contains a dark citrus aroma, it is possible to prevent odors, which are disadvantages in detergents using a solvent.

On the other hand, in the conventional laundry detergent, since a lot of foam is generated during washing has become a major culprit of river water pollution, living environmental pollution. Therefore, in the present invention, in order to solve such a problem, natural fatty acid palm oil is used as a surfactant together with D-limonene.

When using natural fatty acid palm oil as a surfactant, it is possible to reduce the bubble generation by about 70 to 80%, and it is not necessary to use a separate rinse agent because it prevents the remaining of the cleaning agent in the washed object by rapid biodegradation.

The amount of such natural fatty palm oil is 5.0-15.0% by weight of the total detergent composition, less foaming when using less than 5.0% by weight, but there is a problem of less skin protection effect, when used in excess of 15.0% by weight Although the effect is excellent, there is a problem of excessive price rise of the product.

In general, detergents for garments use nonionic surfactants. When nonionic surfactants are used, yellowing, phase separation, and foaming occur. The present invention solved such a problem.

In addition, since the natural fatty acid palm oil is used as the base material, even when washing by hand is excellent skin protection effect. In addition, it can contribute to the stability of the detergent by imparting a suitable thickening effect for ease of use.

In addition, the detergent composition for clothes of the present invention contains n-alkyl dimethyl benzyl ammonium chloride and ethyl alcohol in order to double the sterilization and deodorizing power. When such a compound is added, it is possible to obtain anaerobic bacteria, fungi, aerobic bacteria, as well as to remove mites that are deeply adhered to the cleansed products and to remove the pleasant odor source for a long time. Allows d-limonene to retain its original aroma.

The content of n-alkyl dimethyl benzyl ammonium chloride which plays such a role is 0.30 to 0.7% by weight of the total detergent composition. If the content is less than 0.3% by weight, the sterilization deodorization effect is lowered, and if it is more than 7.0% by weight, the price increases as well. Difficulties can arise in emulsification.

In addition, the content of ethyl alcohol is 3.0 to 7.0% by weight of the total detergent composition, when the content is less than 3.0% by weight, the sterilization deodorization effect is lowered, if the weight exceeds 7.0% by weight, as well as difficulty in emulsification may occur.

The detergent composition of the present invention having such a composition may cause re-contamination and static electricity in the case of general liquid laundry or powder laundry, since inorganic matters, for example, laundry raw materials, which are invisible fine laundry residues remain in the gaps of the laundry. Unlike being promoted, since no inorganic material is used at all, it may have more washing effect but also prevent re-contamination and antistatic effect.

In the detergent composition according to the present invention, citric acid, a softening agent, a dye, and the like, which are added to the conventional detergent, in addition to the composition as described above, of course.

Hereinafter, the present invention will be described in detail with reference to Examples, but the present invention is not limited by the Examples.

Examples 1 to 3

Next, a detergent composition was prepared in a composition as shown in Table 1.

However, D-limonene and water were homogenized using a vacuum mixer (AGI-Honomixer (trade name), manufactured by Hanyang Industrial Machinery) so that the surface tension of the emulsion was 30dyne / cm (20 ° C).

In addition, additives such as citric acid, a softening agent, and a dye may be added as necessary, which does not change the physical properties of the detergent composition.

Example One 2 3 D-limonene 10.0 15.0 20.0 Natural Fatty Palm Oil 5.0 10.0 15.0 n-alkyl dimethyl benzyl ammonium chloride 0.3 0.5 0.7 Ethyl alcohol 3.0 5.0 7.0 water 81.7 69.5 57.3

For the detergent composition for clothes having a composition as shown in Table 1, the cleaning power, stability, bubble generation rate, surface tension, flexibility was measured and the results are shown in Table 2 below.

Here, each evaluation method is based on the Korean Industrial Standard Test Method (KSM), and was in accordance with KSM0011, KSM2701, KSM2709, KSM2714, KSM2715, KSM2525 (5-2), and KSM2525 (5-7), respectively.

Test Items Result Reference value Example 1 General detergents (average of three companies) Detergency (0.05% SOLN) Equivalent to the KSM2709 standard Equivalent to Standard Use Equivalent to standard Stability (stock solution) Heating (50 ± 2 ℃) No precipitation or alteration and pH change within ± 0.3 No problem Upper layer separation (3/1) Low temperature (-15 ± 2 ℃) No problem Lower layer sedimentation (2mm) Bubble generation rate (24 ± 2 ℃) KSM2525 Self Setting 3.0 20.5 Surface Tension (0.05% SOLN) 25 ℃ dyne / cm 40 or less 31.0 38.5 Flexibility (0.05% SOLN) Equivalent to Standard Equivalent to Standard Detergent

From the results of Table 2, in the case of the detergent composition according to the present invention, it exhibits excellent cleaning power, not only superior phase stability, but also excellent ability to prevent recontamination, double the fiber flexibility, and double the sterilizing power, and generate bubbles. It can be seen that this is less and the removal of detergent is easy.

As described in detail above, in accordance with the present invention, it contains D-limonene, an orange extract, and uses natural fatty acid palm oil as a base instead of nonionic surfactant, and contains n-alkyl dimethyl benzyl ammonium chloride and ethyl alcohol. The detergent composition obtained by the D-limonene has excellent cleaning effect due to the unique role of D-limonene, and its inherent scent lasts for a long time, and it is possible to prevent the remaining of the cleaning agent in the object to be cleaned by fast biodegradation, so that a separate rinse agent is not used. The sterilization and deodorizing power is doubled, and the mites inhabiting the cleaned object can be removed. D-limonene is fully emulsified in water, so it has excellent phase stability and does not cause discoloration.

Claims (2)

Clothing containing 10.0 to 20.0% by weight of D-limonene, 5.0 to 15.0% by weight of natural fatty palm oil, 0.3 to 0.7 parts by weight of n-alkyl dimethyl benzyl ammonium chloride, 3.0 to 7.0% by weight of ethyl alcohol and the rest of the water Detergent composition for. The detergent composition of claim 1, wherein the D-limonene is homogeneously mixed with water using a vacuum mixer and adjusted to have a surface tension of 40 dyne / cm (20 ° C.) or less.