JPH1025239A - Cleaner composition for body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cleaner composition for bodies, containing biodegradable plastic powder having a prescribed average particle diameter, excellent in a cleaning force, weak in the irritation of skins, good in biodegradability and substantially not causing environmental pollutions. SOLUTION: This cleaner composition for bodies contains biodegradable plastic powder having an average particle diameter of 30-500μm, preferably 100-300μm. The biodegradable plastic is preferably an aliphatic polyester (e.g. polyglycolic acid ester). The cleaner composition for bodies preferably contains biodegradable plastic powder having an average particle diameter of 30-500μm (0.5-30wt.%), a terpene hydrocarbon and/or a terpene alcohol (0.5-30wt.%) and a surfactant (0.5-30wt.%), and preferably has a viscosity of 5-100 poise at 20 deg.C. The composition can effectively remove strong stains such as heavy oil stains, metal powder stains or coating film-like stains in industrial production sites, etc., and is especially suitable as a hand cleaner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to personal cleansing compositions. More specifically, the present invention is capable of effectively removing heavy oil stains, metal powder stains, and stubborn stains formed on a film at an industrial production site, has low irritation to human skin, and is disposed of after use. Thereafter, the present invention relates to a personal cleansing composition which has good biodegradability and does not cause environmental pollution, and particularly can be suitably used as a hand cleaner.

[0002]

2. Description of the Related Art When heavy oil stains, metal powder stains, film-formed stains, etc. adhere to the surface of the skin of the human body, the skin grooves, sweat holes, It becomes stains such as in fingerprints, and it is not easy to remove such stains. In order to remove such stubborn dirt, a detergent containing an inorganic mineral-based abrasive such as silica sand has conventionally been used. However, although the detergent containing an inorganic mineral-based abrasive such as silica sand has good dirt removal properties, the specific gravity of the inorganic mineral-based abrasive is large, so that the detergent settles in the flowing pipe, and in extreme cases, It also causes plumbing. In addition, a detergent containing an inorganic mineral-based abrasive such as silica sand has a problem in that if it is used frequently, it becomes rough. There are also known detergents that use synthetic scrubs that are less irritating to the skin.However, although there is no sedimentation or clogging in the sink pipe, synthetic scrubs generally have poor biodegradability when discarded after use. However, there is a problem of causing environmental pollution. Therefore, the irritation to the skin is weak,
There is a need for the development of a body cleaning composition that effectively removes dirt in skin grooves, sweat holes, fingerprints, and stubborn dirt formed into a film, and that has little effect on the environment.

[0003]

SUMMARY OF THE INVENTION Under such circumstances, the present invention can effectively remove stubborn dirt such as skin crevices, sweat holes, fingerprints, etc. Biodegradable cream-based personal cleansing composition with low skin irritation, no pipe clogging, and little impact on the environment even after use.Especially suitable for use as a hand cleaner. It was made for the purpose of providing goods.

[0004]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, have found that the average particle diameter is 30 to 40%.
The present inventors have found that a detergent composition containing a 500 μm biodegradable plastic powder has excellent detergency, weak skin irritation, good biodegradability, and is unlikely to cause environmental pollution. Was completed. That is, the present invention provides: (1) a body cleansing composition comprising a biodegradable plastic powder having an average particle size of 30 to 500 μm; 0.5 to 30% by weight of biodegradable plastic powder, (B) 0.5 to 30% by weight of terpene hydrocarbon and / or terpene alcohol
And (C) 0.5 to 30% by weight of a surfactant,
(1) The personal cleansing composition according to (1), which has a viscosity at 0 ° C. of 5 to 100 poise; and (3) the biodegradable plastic is an aliphatic polyester according to (1) or (2). Item) personal cleansing composition,
Is provided.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The personal cleansing composition of the present invention comprises:
Contains biodegradable plastic powder having an average particle size of 30 to 500 μm. In the present invention, a biodegradable plastic refers to a plastic that is decomposed in nature by microorganisms into low molecular weight compounds that do not adversely affect the environment. The biodegradable plastic used is not particularly limited, and examples thereof include polyglycolic acid, poly-L-lactic acid, poly-β-hydroxybutyric acid, polymalic acid, poly-ε-caprolactone, polyethylene succinate, and polybutylene succinate. Aliphatic polyester, and further poly-
γ-methyl glutamate, chemically synthesized biodegradable plastics such as thermoplastic polyvinyl alcohol, poly (3-hydroxybutyrate) produced by microorganisms, poly
And polyesters such as (3-hydroxyvalerate). One of these biodegradable plastics can be used alone, or two or more can be used in combination. As the biodegradable plastic, it is preferable that the strength is large and the melting point is high, and aliphatic polyester can be particularly preferably used.
The average particle size of the biodegradable plastic powder used in the composition of the present invention is 30 to 500 μm, more preferably 10 to 500 μm.
0 to 300 μm. When the average particle size is less than 30 μm, the removability of film-formed dirt or the like is insufficient, and when the average particle size exceeds 500 μm, the usability deteriorates. The biodegradable plastic powder having an average particle size of 30 to 500 μm exhibits excellent performance as a scrub agent, and effectively removes stubborn dirt attached to the body. The method for pulverizing the biodegradable plastic is not particularly limited.For example, in addition to dry pulverization and wet pulverization, the biodegradable plastic is poured into a non-solvent to powder the biodegradable plastic. Or by a polymerization method in which a biodegradable plastic is obtained in powder form. Among these, dry pulverization is particularly preferable because a powder having excellent corners can be obtained as a scrub agent.

The composition of the present invention may contain a natural scrub agent in addition to the biodegradable plastic powder. Examples of natural scrubbing agents include, for example, apricots, peaches, corn, crushed nuclides such as walnuts, peanuts, hull powder such as sesame, protein powders such as casein, kinako, flour, chitin, and polysaccharide powders such as chitosan. Can be mentioned. One of these natural scrubbing agents may be contained, or two or more thereof may be contained in combination. In the composition of the present invention, the content of the biodegradable plastic powder is 0.5 to 3
It is preferably 0% by weight, more preferably 5 to 20% by weight. If the content of the biodegradable plastic powder is less than 0.5% by weight, the removability of skin grooves, sweat holes, stains in fingerprints and filmed stains may be poor. When the content of the biodegradable plastic powder exceeds 30% by weight, the viscosity of the detergent composition increases, and there is a possibility that workability and usability may decrease. In the composition of the present invention, a terpene hydrocarbon and / or terpene alcohol can be contained. Examples of the terpene hydrocarbon include d-limonene, hydrogenated limonene, pinene, myrcene, terpinene, camphene, tricyclene, and terpinolene. On the other hand, examples of the terpene alcohol include linalool, myrcenol, menthol, geraniol, terpineol, borneol, and hydrogenated terpineol. One type of terpene hydrocarbon can be used and 2
More than one species can be used in combination. One type of terpene alcohol can be used, or two or more types can be used in combination. Further, one or more terpene hydrocarbons and one or more terpene alcohols can be used in combination. The content of terpene hydrocarbon and / or terpene alcohol in the composition of the present invention is preferably 0.5 to 30% by weight, and
More preferably, it is 5% by weight. 0.5% by weight of terpene hydrocarbon and / or terpene alcohol
If it is less than the above, there is a possibility that a sufficient detergency cannot be obtained. When the content of the terpene hydrocarbon and / or terpene alcohol exceeds 30% by weight, the detergency is not much improved for the amount, and it may be economically disadvantageous.

The composition of the present invention can contain a surfactant. The surfactant used is not particularly limited, and examples thereof include nonionic surfactants such as alkyl polyoxyalkylene ethers, alkylaryl polyoxyalkylene ethers, alkylamine ethoxylates, and fatty acid ethanolamides, alkylaryl sulfonates, and alkanes. Sulfonates, α-olefin sulfonates, alkyl sulfates, alkyl ether sulfates, anionic surfactants such as N-methyl-acyltaurine, amino acids, betaines, sulfates, sulfonates And amphoteric surfactants such as phosphoric acid ester salts. One surfactant can be used, or two or more surfactants can be used in combination. In particular, a combination of an amino acid-type amphoteric surfactant, an unsaturated fatty acid salt, and a natural alcohol-based nonionic surfactant is preferable in terms of biodegradability, skin irritation, and rinsing properties. The content of the surfactant in the composition of the present invention is preferably 0.5 to 30% by weight, and more preferably 5 to 15% by weight. When the content of the surfactant is less than 0.5% by weight,
There is a possibility that a uniform composition cannot be obtained. When the content of the surfactant exceeds 30% by weight, the rinsing property deteriorates,
Workability may be reduced.

The personal cleansing composition of the present invention may contain, if necessary, various additives conventionally used in personal cleansing compositions, for example, glycol ethers, anti-inflammatory agents, bactericides, water-soluble agents. A polymer, a humectant and the like can be appropriately compounded. As the glycol ether, for example, alkylene glycol alkyl ether, dialkylene glycol alkyl ether, trialkylene glycol alkyl ether, tetraalkylene glycol alkyl ether, alkylene glycol phenyl ether, dialkylene glycol phenyl ether, trialkylene glycol phenyl ether, tetraalkylene glycol Phenyl ether and the like can be mentioned. In addition, as the anti-inflammatory agent, for example, ogon liquid, mugwort liquid, peonid liquid, tisouri liquid, saxifrage liquid, aloe extract, plant extract such as wild rose oil, horse fat, horse oil, allantoin, dipotassium glycyrrhizinate and the like Can be mentioned.
Examples of the water-soluble polymer include carboxyvinyl polymers represented by polyacrylic acids and polymethacrylic acids, carboxymethylcellulose, hydroxyethylcellulose, polyvinyl alcohol, polyethylene oxide, xanthan gum, and the like. Examples of the humectant include lanolin, squalene, hyaluronic acid, sphingolipid, collagen, lecithin and the like. The composition of the present invention preferably has a viscosity at 20 ° C. of 5 to 100 poise. The viscosity of the composition of the present invention can be adjusted by the molecular weight and the amount of the water-soluble polymer. When the viscosity of the composition of the present invention is less than 5 poise,
There is a risk that the biodegradable plastic powder will settle or float and separate. When the viscosity of the composition of the present invention exceeds 100 poise, the composition becomes gel-like and the workability may be reduced. As a method of using the personal cleansing composition of the present invention,
Take an appropriate amount of undiluted solution that is usually creamy, rub it well on the dirt surface of the body, let the dirt completely float, and then rinse with water, especially suitable for hand cleaners. be able to. By washing the skin using the personal cleansing composition of the present invention, skin grooves, sweat holes, heavy oil stains and metal powder stains in fingerprints,
Or for stubborn dirt that has become a film, such as paint,
An excellent cleaning effect can be obtained as compared with a conventional cleaning composition, and irritation to the skin can be suppressed.
Further, when the cleaning is performed using the cleaning composition of the present invention, there is no clogging in the piping, and the washing place can be kept clean. Further, after the cleaning composition of the present invention is discarded,
Degraded in a short time by microorganisms in nature,
There is no risk of causing environmental pollution. The body cleansing composition of the present invention has excellent dissolving power and emulsifying power for skin crevices, sweat holes, and stains in fingerprints, and further has a biodegradable plastic powder having an average particle size of 30 to 500 μm and a viscosity of 5 to 100. It is considered that the poison composition acts synergistically to exhibit an excellent brushing effect.

[0009]

EXAMPLES The present invention will be described in more detail with reference to the following Examples, which should not be construed as limiting the present invention. In Examples and Comparative Examples, measurement and evaluation were performed by the following methods. 1. Average particle size The average particle size of the biodegradable plastic powder is determined by a laser diffraction particle size distribution analyzer [SALD-11, manufactured by Shimadzu Corporation].
00]. 2. Viscosity Measured at 20 ° C. using a B-type viscometer. 3. Detergency Wash your hands well with soap in advance, wipe them thoroughly with a towel and dry them thoroughly. Draw a 5cm long line on the palm of your hand with a black oil-based marker [Magic Ink]. After the marker ink has dried, Write another scribble above,
Dry and prepare palm stain. 3 g of the body cleansing composition was placed on a contaminated palm, rubbed well to remove dirt, and then rinsed with water. The detergency was evaluated according to the following criteria based on the degree of remaining stains after washing. A: It falls very well. B: It almost falls. C: Does not fall much. D: It hardly falls. 4. Skin irritation 0.1 g of a cleansing composition for body was placed on a bandage for patch test [Torii Pharmaceutical Co., Ltd.] and affixed to the left upper arm of six subjects for 6 hours. Next, the bandage was peeled off and washed well with water. After 24 hours, a positive rate (the number of erythema or more / the number of subjects) was determined, and the skin irritation was evaluated. 5. Utilization 1 g of the scrubbing agent used for blending the cleaning composition for body was uniformly placed on the adhesive surface of a 10 cm × 10 cm gum tape, and pressed with a press at a pressure of 10 kgf / cm ² to prepare a sample. This sample was buried from May to October 5 cm below the surface of the field in Fukui Prefecture, and the appearance after 6 months was observed. The assimilation property was evaluated according to the following criteria. ：: Scrub agent almost disappeared. Δ: Scrubbing agent was ragged and partially disappeared. X: There is no change in the scrub agent. Since the scrub agent used in Comparative Example 2 was obtained by pulverizing a natural product, evaluation of assimilation was not performed. 6. The pipes, i.e., five sinks, were replaced with transparent PVC pipes, and the hands were washed 10 times a day with the body cleaning compositions of Examples and Comparative Examples in each sink, and three months later, Observe the state of the sediment of the following, according to the following criteria
The plumbing clog was evaluated. ：: No sediment is seen. Δ: Sediment is slightly deposited. ×: The sediment is considerably deposited. Example 1 Aliphatic polyester having an average particle diameter of 100 μm [Showa Kobunshi
Manufactured by Bionole # 1000] 10 parts by weight of pulverized product, d
-Limonene 5 parts by weight, cetyl alcohol ethylene oxide 8 mol adduct 10 parts by weight, oleic acid 5 parts by weight, 48 parts by weight potassium hydroxide aqueous solution 1 part by weight, carboxymethyl cellulose 2 parts by weight, N-acylglutamic acid triethanolamine salt 2 parts by weight and 65 parts by weight of water were blended and uniformly mixed to prepare a personal cleansing composition. The viscosity at 20 ° C. of this personal cleansing composition was 52 poise. In the detergency test, the palm contamination was largely removed. In the skin irritation test, no erythema occurred in the subjects. In the assimilation test, most of the pulverized aliphatic polyester product had disappeared. No sediment was found in the PVC pipe in the pipe or test. Examples 2 to 3 and Comparative Examples 1 and 2 In the same manner as in Example 1, a body cleaning composition was prepared according to the composition shown in Table 1, and measurement and evaluation were performed. The results are shown in Table 1.

[0010]

[Table 1]

From the results in Table 1, it can be seen that the body cleansing compositions of the present invention of Examples 1 to 3 have good detergency and do not show any skin irritation when embedded in the ground. It can be seen that it almost disappears in a month and does not cause piping clogging. On the other hand, the body cleansing composition of Comparative Example 1 using polyethylene powder as the scrub agent has no change even after 6 months since it is buried in the ground, and has poor assimilation.
In addition, the body cleansing composition of Comparative Example 2 using silica sand as a scrubbing agent was strongly skin irritating and caused erythema or more in 5 out of 6 subjects. Deposited.

[0012]

EFFECTS OF THE INVENTION The body cleansing composition of the present invention can effectively remove heavy oil stains, stubborn stains, and the like at industrial production sites, has low skin irritation, and can be used after disposal. It has excellent characteristics such as good biodegradability, and is particularly suitable for use as a hand cleaner.

Claims (3)

[Claims] 1. A personal cleansing composition comprising a biodegradable plastic powder having an average particle size of 30 to 500 μm. (A) 0.5 to 30% by weight of a biodegradable plastic powder having an average particle size of 30 to 500 μm, and (B) 0.5 to 30 terpene hydrocarbon and / or terpene alcohol.
The personal cleansing composition according to claim 1, which contains 0.5% to 30% by weight of a surfactant (C) and a viscosity at 20 ° C of 5 to 100 poise. 3. The personal cleansing composition according to claim 1, wherein the biodegradable plastic is an aliphatic polyester.