KR960009063B1 - Detergent composition - Google Patents

Abstract

The detergent composition comprises common detergent and 0.1-10wt% mixture of carboxy methyl chitin with a MW of 1,500-2,500 and leaf extract in a ratio of 2:1-1:10. The extract comes from a stem of the white birch, and comprises ergosterol or saponin such as biturine and ethanol soln. of tanin and terphen.

Description

Kitchen Detergent Composition

The present invention relates to a detergent composition for kitchen. More specifically, the present invention relates to a dish detergent composition containing both carboxymethyl chitin and white leaf extract at the same time, reducing skin irritation.

Dishwashing detergent is an aqueous solution in which an active ingredient, usually a surfactant, and an additive such as a skin protectant are mixed. In dishwashing detergent, an active ingredient means a surfactant that can contribute to the cleaning effect, and means an anion, nonionic, zwitterionic surfactant, and a mixture of these surfactants. In kitchen detergents, additives consist of skin protection ingredients, solubilizers and fragrances that reduce the skin irritation of the active ingredient. Skin protection ingredient means the moisturizing, retention action as a whole, a substance that inhibits dehydration, deoiling of the skin by the active ingredient of the detergent or supplies the effect to the skin. This detergent is usually a clear liquid that is used to remove food debris from hard surfaces such as tableware and cooking utensils, diluted to standard usage at temperatures between 20 and 45 ° C. At this time, washing with bare hands not only contaminates the dishes, but also removes moisture and oil from the skin, causing irritation and roughening the skin. The function of reducing skin irritation is contrary to the grease and decontamination function of kitchen detergents, and its meaning and importance are as important as cleaning power.

Generally used skin protectants include humectants such as glycerin, sorbitol, sodium pyrrolidone carboxylate, protein derivatives, phospholipid derivatives, plant and seaweed extracts.

U. S. Patent No. 4,268, 406 discloses a liquid detergent composition containing denatured protein. US Patent No. 3,548,056 discloses a liquid detergent composition containing a partially hydrolyzed water soluble protein as a skin coder. Japanese Patent Publication No. 90-1343310 discloses a skin cleanser composition which contains a chitosan derivative and is mild to the skin. Japanese Patent Laid-Open No. 91-5414 discloses a cleaning composition containing chitin and 45 to 60% deacetylated chitosan and a process for producing the same. Japanese Patent Application Laid-Open No. 89-240599 discloses a kitchen detergent composition in which chitin or chitosan contains a water-soluble derivative and is gentle on the skin. Japanese Patent Publication No. 88-193999 discloses a dishwashing agent composition containing a water-soluble chitin compound such as glycol chitin, carboxymethyl chitin, chitin sulfate and the like.

Commercial dishwashing detergents are usually maintained in a transparent liquid, even if the additives excellent skin protection effect is difficult to use if it can not be mixed in a transparent phase. In addition, the dishwashing agent releases natural moisturizing substance (NMF) from the skin's stratum corneum, so the skin condition is lower than the actual relative humidity in the air, which makes the skin feel dry and pulling.

Although all existing patent documents have excellent skin protection effects of water-soluble proteins and excellent effects when chitin and chitosan derivatives are used alone, the skin protection effects as expected could not be obtained. There was a disadvantage that the detergent was not kept transparent. In addition, some skin protectants, which have slightly superior skin moisturizing power, have the disadvantage of lowering the cleaning power when used in detergents.

Therefore, the present inventors have studied to solve the above-mentioned problems of the prior art, when using the carboxy methyl chitin and white salt extract at the same time as compared to the use of hydrolyzed protein or chitin derivative known to be excellent alone There is no reduction, the skin is less dry or pulled after using the detergent, the skin mildness is significantly increased, and the product has been found to be excellent in phase stability, thus completing the present invention.

The carboxymethyl chitin used in the present invention has the following chemical structural formula (I), which can be obtained by chemically treating the chitin of the glucose amine structure present in a large amount in shells of shellfish such as shrimp and crab, and the molecular weight distribution. There is a difference in moisturizing effect.

The white leaf extract used in the present invention is an extract obtained from the stem from which the birch leaf and the cork part are removed, also called a cherry or silica wave extract, and is widely used as a convergent and moisturizing agent, and saponins such as ergosterol or bitulin (betulin) It refers to a medicine in which exports containing tannin and terpene oil are dissolved in ethanol.

The dishwashing agent used in the present invention is a general-purpose dishwashing agent and a straight chain alkyl, which are used as a main component by mixing a fatty acid alkanolamide which is a nonionic surfactant with an anionic surfactant of a linear alkylbenzene sulfonate, an alcohol methoxy sulfate, and an alpha ole sulfonate salt. Mild kitchen without mixing benzenesulfonate as main component by mixing anionic surfactant of alcohol ethoxy sulfate, alcohol sulfate, nonionic surfactant of fatty acid alkanolamide, alkylamine oxide and amphoteric surfactant of betaine Detergent was used.

In the present invention, a preparation prepared by adding a skin protective agent such as chitin and its derivatives, hydrolyzed collagen protein, egg yolk phospholipid, glycerin, sorbitol, and propylene glycol to a general dish detergent and mild dish detergent, and carboxymethyl chitin and white leaf extract are added. Comparison was made with skin irritation, phase stability and detergency with the detergent.

Carboxymethyl chitin and white leaf extract in the detergent composition of the present invention is preferably used in 0.1 to 10 parts by weight per the total amount of the composition in a mixing ratio of 2/1 to 1/10. When the mixture of carboxymethyl chitin and white leaf extract was used at 0.1 parts by weight or less, it did not have a great effect on reducing skin irritation.

Hereinafter, the present invention will be described in detail with reference to Examples.

The evaluation method used in the Example of this invention is as follows.

Phase stability

Visually assessing the degree to become a transparent liquid when 2 parts by weight of various skin protective agents were added to the dishwashing detergent.

○: completely melted uniform phase

△: cloudy but uniform

×: phase separation

Skin moisture

10 ml of various skin care agent 2% aqueous solutions were applied to the upper arm and the electrical conductivity was measured using SKICON 200. The conductivity value of the site where the sample was not treated at all was set to 100, and the converted conductivity value was calculated based on this, and the degree of increase and decrease was evaluated.

◎: more than 10%

○: 0-10% increase

△: 0-10% decrease

×: less than 10%

Cleaning power

The cleaning force test method performed in the present invention is to evaluate the number of dishes washed after applying 1g / sheet contamination to a 100 mm diameter watch plate by a plate test method. An end point is when the bubbles formed by freely falling three times an aqueous solution of 0.15 parts by weight of a detergent composition in a bucket of 30 cm in diameter and 30 cm in height three times at a height of 1 m are removed by contamination during cleaning and remain below 1 mm in thickness. The washing power is evaluated by the number of dishes. In order to contaminate dishwashing detergents, organic residues such as plant residues, grease, protein, starch, fat and oil are usually used. In the present invention, milk (20 parts), eggs (20 parts) and starch (15 parts) , A total contamination obtained by emulsifying margarine (10 parts by weight) and cooking oil (10 parts by weight) in a stable state was used.

Skin irritation test

The skin irritation test conducted in the present invention is a 10-hour daily patch of the kitchen liquid detergent sample on the upper arm of 10 healthy men and women, and then replicates the skin of the patch site to create a personal image analysis system. Utilization, fissuring and debris of the skin were calculated.

Samples of the skin irritation test were used by diluting each sample of the Examples and Comparative Examples in a 5% aqueous solution, and applied to the same site for 5 hours every day for 7 hours to evaluate the skin irritation (Trouble) according to the long-term use of kitchen detergent. .

Duplicating the skin using a dental silicone (Xantropren, BAYER) and a curing agent (Elastomer activator, BAYER) to replicate the patch, the skin replica (replica) using a 100 times microscope to enter the appearance of the skin. The image processing system KIT-500 (Japan PIAS) was used for image processing with 245,760 pixels, and it was displayed on a computer CRT using IBM Personal Computer. At this time, the amount of skin cracking and peeling was calculated by the number of pixels (fixel) to calculate the amount of skin irritation in the total number of pixels (245,760).

The following table shows the results of the phase stability and skin moisturizing effects of carboxymethyl chitin and white leaf extract on the detergent.

When the molecular weight of the carboxy methyl chitin was 1,500 to 2,500, the moisturizing effect was also excellent, and it appeared to be excellent in the phase stability in the detergent by working with the white leaf extract.

The following table shows the results of the test of the cleanness, cleansing power and skin irritation according to the ratio of carboxybox metal chitin (molecular weight: 2,000) and white leaf extract, and it is compared with other skin protection agents known to have excellent skin irritation effect. The result is.

As an active ingredient of the dishwashing detergent used in the present invention, a general ingredient and composition of a commercial mild dishwashing detergent of the commercially available general dishwashing detergent were used.

Active ingredient A: Active ingredient B:

Straight chain alkylbenzenesulfonate: 15.0% Alcohol ethoxy sulfate: 14.0%

Alcohol ethoxy sulfate: 1.5% fatty acid alkanolamide: 3.0%

Alpha olefin sulfonate: 2.0% alkyldimethylamine oxide: 2.0%

Fatty acid alkanolamide: 1.5% Amidoalkyl betaine: 3.0%

Ethanol: 2.0% Ethanol: 2.0%

TABLE 1

* 1: Plant extract: Aloe, sage, silica, rosemary, chamomile mixed extract

* 2: chitin, chitosan: 45 to 60% acetylated chitosan

* 3: Carboxymethyl Chitin: Molecular Weight 2,000

* 4: Number of pixels occupied by cracks and debris out of the total number of pixels (245,760)

As shown in Examples 1 to 4, when the carboxymethyl chitin and the white leaf extract were simultaneously added to the commercially-available universal dish detergent A, the skin irritation was drastically reduced and the phase stability was maintained as the cleaning power was maintained or increased. Since the skin is negatively charged, positively charged carboxymethyl chitin forms a skin protective film, which prevents the penetration of active ingredients and reduces irritation, and it is believed that the moisturizing and synergistic effects of the extract of the white leaf.

TABLE 2

* 1: Plant extract: Aloe, sage, silica, rosemary, chamomile mixed extract

* 2: chitin, chitosan: 45 to 60% acetylated chitosan

* 3: Carboxymethyl Chitin: Molecular Weight 2,000

* 4: The number of pixels occupied by fissre and debris among the total number of pixels (245,760)

As shown in Examples 5 to 8, when the carboxy methyl chitin and the white salt extract were simultaneously added to the commercial mild dish detergent B, the skin irritation was drastically reduced and the phase stability was maintained as the cleaning power was maintained or increased.

Claims (4)

Dishwashing detergent composition comprising carboxy methyl chitin and white leaf extract. The kitchen detergent composition according to claim 1, wherein the molecular weight of carboxy methyl chitin is 1,500 to 2,500. The dish detergent composition according to claim 1, wherein the white leaf extract contains an ethanol solution of saponins such as ergosterol or biturin, tannins and terpenes. The kitchen detergent composition according to any one of claims 1 to 3, wherein the carboxymethyl chitin and the white leaf extract are used in an amount of 2/1 to l / 10 based on 0.1 to 10 parts by weight of the dishwashing detergent.