JP2015124383A - Gelatinous detergent composition and gelatinization method of liquid detergent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gelatinization method of a liquid detergent capable of providing a gelatinous potassium detergent hardly having temperature change by gelating liquid potassium soap.SOLUTION: To liquid potassium soap heated at 40 to 80°C, 0.5 to 30 wt.% of polyethylene glycol fatty acid ester having 2 aliphatic acids such as polyethylene glycol distearate and lauric acid polyethylene glycol in a molecule is added.

Description

Detailed Description of the Invention

  The present invention relates to a gel detergent (potassium soap) composition and a method for gelling a liquid detergent, and more specifically, liquid potassium soap (potassium soap), which has been considered impossible until now, is changed into a gel. And a gelation method of a liquid detergent (potassium soap).

As is well known, soap is divided into a solid substance called sodium soap and a liquid (aqueous solution) called potassium soap (potassium soap). Both potassium soaps produce fatty acid ions in the water, and these fatty acid ions are not washed away by rinsing and remain on the skin surface, thus exhibiting a moisturizing effect.
Potassium soap has a higher moisturizing power because it contains more fatty acid ions and more free fatty acids adsorbed to the skin than sodium soap. In addition, potassium soap is excellent in clarity, and is used as a medicine in medical institutions such as hospitals, and is versatile.

  The following technology has been developed to make it possible to solidify (gelate) such a clear liquid potassium soap to make it more versatile and difficult to transport. That is, it was made into paste form and solid form by adding a sodium salt of fatty acid to liquid potassium soap (Patent Document 1).

Japanese Patent Laid-Open No. 08-319498

  Like conventional technology, by adding sodium salt of fatty acid to potassium soap, liquid potassium soap will surely change into a paste, but pasted potassium soap has a problem that its hardness changes with temperature. there were. That is, the paste-like potassium soap prepared at a high temperature has a problem that it becomes hard to use when exposed to a relatively low temperature.

[Object of invention]
For this reason, the present inventor has intensively studied and developed whether or not a gel-like cleaning agent that hardly changes in temperature can be obtained by gelling liquid potassium soap (cleaning agent), and has reached the present invention.

  The gel-like detergent composition according to claim 1 (hereinafter, also simply referred to as “detergent composition” or “gel-like detergent”) liquid potassium soap (a), and two fatty acids in one molecule It is obtained by mixing polyethylene glycol fatty acid ester (b) (hereinafter also referred to as “polyethylene glycol difatty acid ester” or simply “diester”), (hereinafter, polyethylene glycol is also referred to as “PEG”). Features.

  The cleaning composition according to claim 2 is the cleaning composition according to claim 1, wherein the polyethylene glycol fatty acid ester (b) is polyethylene glycol dilaurate, polyethylene glycol dimyristate, polyethylene glycol dipalmitate. And at least one polyethylene glycol difatty acid ester selected from the group consisting of polyethylene glycol distearate.

  The cleaning composition according to claim 3 is the cleaning composition according to claim 1 or 2, wherein the polyethylene glycol fatty acid ester (b) has the number of moles of polyethylene glycol, that is, the average number of moles of PEG chains added. The number of moles (ethylene oxide EO repeat number (degree of polymerization)) is 2 to 25.

  The method for gelling a liquid detergent according to claim 4 is characterized in that a polyethylene glycol fatty acid ester (b) having two fatty acids in one molecule is added to liquid potassium soap (a) as a detergent. And

  The method for gelling a liquid detergent according to claim 5 comprises adding polyethylene glycol fatty acid ester (b) having two fatty acids in one molecule to liquid potassium soap (a) heated to 40 to 80 ° C. And then cooled to room temperature (cooled).

  When the polyethylene glycol difatty acid ester (b) is mixed with the liquid potassium soap (a) as in the cleaning composition according to claim 1, the mixture (composition) gels. Although this gel-like cleaning composition is a gel in shape, it often retains clarity (transparency) when in a liquid state, and the resulting cleaning composition has a great deal of external environment. There is no problem of being solidified by changes in environmental temperature without being affected.

  The polyethylene glycol difatty acid ester is at least one selected from the group consisting of dilauric acid PEG, dimyristic acid PEG, dipalmitic acid PEG, and distearic acid PEG as in the detergent composition according to claim 2. If it exists, it will become a cleaning composition with little shape (hardness) change with temperature still more effectively.

  If the number of moles of the average added moles of PEG chains in the polyethylene glycol difatty acid ester (the number of ethylene oxide EO repeats (degree of polymerization)) is 2 to 25 as in the detergent composition according to claim 3 It becomes a cleaning composition with less shape (hardness) change due to temperature even more effectively.

  By adding a polyethylene glycol difatty acid ester to liquid potassium soap which is a detergent as in the gelation method according to claim 4, the liquid potassium soap is gelled to form gelled potassium soap. In addition, this gel-like cleaning agent often retains clarity (transparency), and the obtained gel-like cleaning agent is not significantly affected by the external environment and is solidified by changes in environmental temperature. Such a problem does not occur.

  If the liquid potassium soap is heated to 40 to 80 ° C. as in the gelation method according to claim 5, the effects of the gelation method according to claim 4 are more effectively achieved. The That is, by the gelation method according to claim 5, the liquid potassium soap can be gelled more effectively. In addition, this gel-like cleaning agent often retains clarity (transparency), and the obtained gel-like cleaning agent is not significantly affected by the external environment and is solidified by changes in environmental temperature. There is no such problem.

  Hereinafter, although one Example of this invention is described, this invention is not limited by this.

Embodiment of the present invention
Cleaning agent (potassium soap)
There are no particular limitations on the fatty acids (fatty acids that make up potassium soap, fats and oils) as raw materials for the detergent (potassium soap), lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, caproic acid , Caprylic acid, palmitoleic acid, elaidic acid, erucic acid, arachidic acid, behenic acid and the like. Among these, in consideration of foaming, foam quality, storage stability and the like, fatty acids having 12 to 18 carbon atoms, that is, lauric acid (C number 12), myristic acid (C number 14), palmitic acid (C number 16), It is preferable to use stearic acid (C number 18) alone or in combination of two or more. The blending amount of this fatty acid is the same as the blending amount when producing a conventionally known potassium soap. Specifically, the fatty acid is usually blended in an amount of 5 to 90% (% by weight, hereinafter the same), preferably 10 to 80%, more preferably 15 to 70%. The balance is a potassium compound, water, and other additives described later.

A conventionally well-known thing can be used as a potassium compound made to react with a fatty acid, and potassium hydroxide is mentioned as a typical thing.
The water content (including water contained in the potassium compound) is usually 1 to 80%, but is not particularly limited by this.

Polyethylene glycol difatty acid ester (diester)
As the polyethylene glycol fatty acid ester in the present invention, any one having two fatty acids in one molecule can be used. Examples include polyethylene glycol distearate, polyethylene glycol dilaurate, polyethylene glycol dimyristate, polyethylene glycol dipalmitate, polyethylene glycol diisostearate, polyethylene glycol dibehenate, and the like. These may be used alone or in combination of two or more, such as polyethylene glycol distearate and polyethylene glycol dilaurate, or polyethylene glycol dilaurate and polyethylene glycol dimyristate. Above all, the availability and economics, or the gel potassium soap that is finally obtained is often excellent in clarity (transparency), and the adverse effects (such as solidification) due to changes in environmental temperature are much. In terms of not receiving, it is preferable to use polyethylene glycol dilaurate, polyethylene glycol dimyristate, polyethylene glycol dipalmitate, polyethylene glycol distearate.

  Moreover, the average addition mole number of the PEG chain in the polyethylene glycol difatty acid ester (the number of ethylene oxide EO repeats (degree of polymerization)) is 2 to 25. This is preferable in that it does not receive much adverse effects (such as solidification) due to changes.

  The blending ratio (addition ratio) of polyethylene glycol difatty acid ester when gelling potassium soap is preferably 0.5 to 30%. If the blending ratio of the polyethylene glycol difatty acid ester is 0.5%, there is a possibility that it will not gel, and if it exceeds 30%, the final cleaning agent may become hard. In addition, a preferable range is 1 to 25%. Moreover, the hardness of the gel-like potassium soap finally obtained can be changed by adjusting the compounding quantity (addition quantity) of this polyethyleneglycol difatty acid ester, and also the color can be made into white.

Others (humectant, fragrance, conditioning agent, etc.)
In the range that does not adversely affect the gelation of potassium soap, additives such as the following moisturizing agent, plant extract, conditioning agent, colorant and the like can also be blended. Listed below.

  As humectants, glycerin, polyethylene glycol, squalene, squalane, sorbitol, maltitol, xylitol, erythritol, sodium lactate, PCA sodium, sugar (sucrose), honey, maple syrup, agape syrup, betaine, sodium pyrrolidone carboxylate, Examples include polyvinyl pyrrolidone and sodium hyaluronate.

  Plant extracts include licorice (licorice) extract, raspberry extract, tomorrow leaf extract, rosemary extract, konjac extract, ginkgo biloba extract, jujube extract, perilla extract, aloe extract, green tea extract, mugwort extract, lavender extract, mulberry bark Examples include extract, pearl barley extract, coconut extract, saxifrage extract, algae extract, cuckoo extract, mint extract, safflower extract, loofah extract and the like.

  Conditioning agents include cationized cellulose having a weight average molecular weight of 5 to 5 million, cationized guar gum, silicone, polyethylene glycol, sodium polyacrylate, hydroxyethyl cellulose, protein derivative, ceramide, pseudoceramide, linear or branched carbon number. Examples include 16 to 40 fatty acids, hydroxy acids and panthenol.

  Examples of the colorant include, but are not limited to, Blue No. 1, Blue No. 2, Green No. 3 and Red No. 1 and the like. As others, astaxanthin, cyanocobalamin, copper chlorophyll, titanium oxide, zinc white, red rose, Chromium oxide, cobalt blue, iron black, alumina white, yellow iron oxide, bitumen, yellow lead, zinc chromate, molybdenum red, zinc sulfide, vermilion, cadmium yellow, cadmium red, selenium compound, barite, precipitated barium sulfate, heavy Calcium carbonate, precipitated calcium carbonate, hydrous silicate, clay, ultramarine, carbon black, aluminum powder, bronze powder, zinc powder, mica / titanium oxide, naphthol green B, naphthol S, risol red, lake red C, fast yellow , Nafrole Red, Alkaline Blue Red, B Daminkireto, quinacridone red, dioxazine violet, etc. isoindolinone yellow and the like.

  As a fragrance, d-limonene, β-caryophyllene, cis-3-hexenol, linalool, farnesol, β-phenylethyl alcohol, 2,6-nonadienal, citral, α-hexylcinnamic aldehyde, β-ionone, l-carvone , Cyclopentadecanone, linalyl acetate, benzyl benzoate, γ-undecalactone, eugenol, rose oxide, indole, phenylacetaldehyde dimethyl acetal, auran thiol, cinnamic aldehyde, and methyl ionone.

  Preservatives include benzoic acid, benzoate, salicylic acid, salicylate, phenol, sorbic acid, sorbate, paraoxybenzoate, chlorcresol, dehydroacetic acid, dehydroacetate, resorcin, hexachlorophene, isopropylmethylphenol, ortho Examples include phenylphenol, benzalkonium chloride, chlorhexidine hydrochloride, bisabolol, halocarban, trichlorocarbanide, chlorhexidine gluconate, alkylisoquinolinium bromide, phenoxyethanol, and alkyldiaminoethylglycine hydrochloride.

  Examples of the pearling agent include hydroxystearate, polyethylene glycol monostearate, polyethylene glycol distearate, ethylene glycol monostearate, ethylene glycol distearate, stearic acid monoethanolamide, stearic acid monoethanol stearate, and the like. .

  Examples of the chelating agent include phosphates such as sodium orthophosphate, sodium pyrophosphate, sodium tripolyphosphate, sodium hexametaphosphate; nitrilotriacetate (NTA), tetrasodium edetate (ethylenediaminetetraacetate) (EDTA), Hydroxyethylenediamine triacetate (HEDTA), diethylenetriaminopentaacetate (DTPA), triethylenetetraamine hexaacetate (TTHA), hydroxyethyliminodiacetic acid salt (HIDA), dihydroxyethylglycine (DHEG), methylglycine diacetate Aminopolyacetates such as (MGDA), glutamic acid diacetate (GLDA), aspartic acid diacetate (ASDA), β-alanine diacetate (ADA), serine diacetate (SDA); glycine, alanine, glutamine , Amino acids such as aspartic acid, organic acids such as glycolic acid, lactic acid, citric acid, gluconic acid, tartaric acid, malic acid; polyacrylic acid or a salt thereof, polyfumaric acid or a salt thereof, polymaleic acid or a salt thereof, poly-α -Polymers such as hydroxyacrylic acid or a salt thereof, polyacetal acrylic acid or a salt thereof.

  A thickener can also be mix | blended. Examples of thickeners include gum arabic, carrageenan, gum karaya, gum tragacanth, casein, dextrin, gelatin, sodium alginate, methylcellulose, ethylcellulose, CMC, hydroxyethylcellulose, hydroxypropylcellulose, PVA, sodium polyacrylate, guar gum, tamarind gum, Xanthan gum, magnesium aluminum silicate, bentonite, montmorillonite, hectorite, vermiculite, laponite, polystearic acid polyoxyethylene pentaerythritol, stearic acid PEG-150, lauramide DEA (same as “diethanolamide”), myristamide DEA, stearamide DEA , And cocamide DEA. Among them, the use of lauramide DEA, myristamide DEA, stearamide DEA, and cocamide DEA is preferable in that it has excellent foam increasing properties and foam stability.

[Usage]
The gel detergent composition of the present invention or the gel detergent obtained by the liquid detergent gelation method is used for body shampoo, hair shampoo, hand (hand finger) detergent, face wash, etc. What is used for washing | cleaning is mentioned. In addition, it can be used industrially.

Example 1 (Production Example of Gelled Potassium Soap)
Lauric acid 5 parts (parts by weight, the same applies hereinafter), myristic acid 9 parts, palmitic acid 5 parts, glycerin 10 parts, sorbitol (70%) 10 parts, edetate tetrasodium 0.2 parts (ethylenediaminetetraacetate), and 41.8 parts of water was placed in a 200 ml beaker and heated to 70 ° C. with stirring. While maintaining the temperature at 70 ° C., 9.7 parts of 48% potassium hydroxide solution was added dropwise according to a conventional method and reacted at 70 to 80 ° C. for 20 minutes, and then 4 parts of lauric acid diethanolamide was added and cooled. Thereby, a transparent (clear) liquid potassium soap was obtained.

  The obtained liquid potassium soap was heated to 70 to 80 ° C., and 5 parts of polyethylene glycol dilaurate (degree of polymerization [average number of added moles of polyethylene glycol chain] 6, manufactured by Nippon Emulsion Co., Ltd. (trade name: EMALEX 300di-L)) To give a highly viscous solution. Then, 0.3 part of fragrance | flavor was added, it filled with the container, and when it cooled to normal temperature, the transparent (clear) gel-like washing | cleaning agent (potassium soap) was obtained.

  The gel-like cleaning agent thus obtained was stored in a refrigerator (internal temperature 4-6 ° C.) for 5 hours, but even if it was exposed to such a relatively low temperature, it did not become hard and difficult to use. The gel shape was kept. Further, a cleaning test was conducted using this potassium soap, but there was no inconvenience that caused a particular problem, and the cleaning power similar to that of normal liquid potassium soap could be confirmed.

Comparative Example 1
Potassium soap was produced in the same manner as in Example 1 except that 5 parts of polyethylene glycol dilaurate was not blended and water was changed to 46.8 parts with 5 parts more. As a result, the obtained potassium soap did not gel and was liquid.

Example 2 (Example of production of gelled potassium soap)
15 parts of palmitic acid, 10 parts of glycerin, 10 parts of sorbitol (70%), 0.2 parts of tetrasodium edetate (ethylenediaminetetraacetate), and 51.7 parts of water are placed in a 200 ml beaker and stirred to 70 ° C. Heated. While maintaining the temperature at 70 ° C., 6.8 parts of 48% potassium hydroxide solution was added dropwise according to a conventional method, reacted at 70-80 ° C. for 20 minutes, and then cooled. Thereby, a transparent (clear) liquid potassium soap was obtained.

  The obtained liquid potassium soap was heated to 70 to 80 ° C., and 6 parts of polyethylene glycol dilaurate (degree of polymerization [average number of added moles of polyethylene glycol chain] 6, manufactured by Nippon Emulsion Co., Ltd. (trade name: EMALEX 300di-L)) To give a highly viscous solution. Then, 0.3 part of fragrance | flavor was added and it filled with the container, and when it cooled to normal temperature, the white gel-like cleaning agent (potassium soap) was obtained.

  The gel-like cleaning agent thus obtained was stored in a refrigerator (internal temperature 4-6 ° C.) for 5 hours, but even if it was exposed to such a relatively low temperature, it did not become hard and difficult to use. The gel shape was kept. Further, a cleaning test was conducted using this potassium soap, but there was no inconvenience that caused a particular problem, and the cleaning power similar to that of normal liquid potassium soap could be confirmed.

Comparative Example 2
Potassium soap was produced in the same manner as in Example 2 above, except that 6 parts of polyethylene glycol dilaurate was not blended and water was changed to 57.7 parts with 6 parts more. As a result, the obtained potassium soap did not gel and was liquid.

Example 3 (Production Example of Gelled Potassium Soap)
200 ml of lauric acid 6 parts, myristic acid 10 parts, palmitic acid 3 parts, glycerin 10 parts, sorbitol (70%) 10 parts, edetate tetrasodium 0.2 parts (ethylenediaminetetraacetate), and water 41.6 parts Placed in a beaker and heated to 70 ° C. with stirring. While maintaining the temperature at 70 ° C., 9.9 parts of 48% potassium hydroxide solution was added dropwise according to a conventional method and reacted at 70 to 80 ° C. for 20 minutes. Then, 4 parts of lauric acid diethanolamide was added and cooled. Thereby, a transparent (clear) liquid potassium soap was obtained.

  When the obtained liquid potassium soap is heated to 70 to 80 ° C. and 5 parts of polyethylene glycol dilaurate (polymerization degree 12, manufactured by Nippon Emulsion Co., Ltd. (trade name: EMALEX 600di-L)) is added, a solution having a high viscosity is obtained. It was. Then, 0.3 part of fragrance | flavor was added, it filled with the container, and when it cooled to normal temperature, the transparent (clear) gel-like washing | cleaning agent (potassium soap) was obtained.

  The gel-like cleaning agent thus obtained was stored in a refrigerator (internal temperature 4-6 ° C.) for 5 hours, but even if it was exposed to such a relatively low temperature, it did not become hard and difficult to use. The gel shape was kept. Further, a cleaning test was conducted using this potassium soap, but there was no inconvenience that caused a particular problem, and the cleaning power similar to that of normal liquid potassium soap could be confirmed.

Comparative Example 3
Potassium soap was produced in the same manner as in Example 3 except that 5 parts of polyethylene glycol dilaurate was not blended and water was changed to 46.6 parts with 5 parts more. As a result, the obtained potassium soap did not gel and was liquid.

Example 4 (Production Example of Gelled Potassium Soap)
200 ml of 6 parts of lauric acid, 10 parts of myristic acid, 3 parts of palmitic acid, 10 parts of glycerin, 10 parts of sorbitol (70%), 0.2 part of edetate tetrasodium (ethylenediaminetetraacetate), and 40.6 parts of water Placed in a beaker and heated to 70 ° C. with stirring.

  Subsequently, 9.9 parts of 48% potassium hydroxide solution was added dropwise at 70 ° C. according to a conventional method, and reacted at 70-80 ° C. for 20 minutes. Thereafter, 4 parts of lauric acid diethanolamide was added and cooled to room temperature to produce potassium soap.

  When the obtained liquid potassium soap is heated to 70 to 80 ° C. and 4 parts of polyethylene glycol dilaurate (polymerization degree 6) and 2 parts of polyethylene glycol distearate (polymerization degree 8) are added, became. Then, 0.3 part of fragrance | flavor was added, it filled with the container, and when it cooled to normal temperature, the transparent (clear) gel-like washing | cleaning agent (potassium soap) was obtained.

  The gel-like cleaning agent thus obtained was stored in a refrigerator (internal temperature 4-6 ° C.) for 5 hours, but even if it was exposed to such a relatively low temperature, it did not become hard and difficult to use. The gel shape was kept. Further, a cleaning test was conducted using this potassium soap, but there was no inconvenience that caused a particular problem, and the cleaning power similar to that of normal liquid potassium soap could be confirmed.

Comparative Example 4
Potassium soap was produced in the same manner as in Example 4 above, except that 4 parts of polyethylene glycol dilaurate and 2 parts of polyethylene glycol distearate were not added, and water was changed to 46.6 parts, which was 6 parts more. . As a result, the obtained potassium soap did not gel and was liquid.

Examples 5 to 7 (Production Examples of Gelled Potassium Soap)
Instead of using polyethylene glycol dilaurate, polyethylene glycol dimyristic acid (degree of polymerization 6, Example 5), polyethylene glycol dipalmitate (degree of polymerization 18, example 6), or polyethylene glycol diisostearate (degree of polymerization 22) Then, potassium soap was produced in the same manner as in Example 1 except that Example 7) was used. As a result, each of the obtained cleaning agents (Examples 5 to 7) was a transparent (clear) gel-like product similar to that obtained in Example 1. Moreover, although this obtained gel-like washing | cleaning agent (Examples 5-7) was preserve | saved for 5 hours in the refrigerator (internal temperature 4-6 degreeC), it continued holding | maintaining a gel form. Further, a cleaning test was conducted using this potassium soap, but there was no inconvenience that caused a particular problem, and the cleaning power similar to that of normal liquid potassium soap could be confirmed.

  According to the present invention, it is possible to produce a gel-like cleaning agent (potassium soap) by gelling liquid potassium soap. Thereby, the use can be expanded (by changing from a liquid state to a gel-like shape) while taking advantage of potassium soap.

Claims (5)

(A) Liquid potassium soap, and (b) A gel detergent composition obtained by mixing a polyethylene glycol fatty acid ester having two fatty acids in one molecule.   The polyethylene glycol fatty acid ester (b) is at least one selected from the group consisting of polyethylene glycol dilaurate, polyethylene glycol dimyristate, polyethylene glycol dipalmitate, and polyethylene glycol distearate. 2. The gel-like cleaning composition according to 1.   The gel detergent composition according to claim 1 or 2, wherein the polyethylene glycol fatty acid ester (b) has 2 to 25 moles of polyethylene glycol.   A method for gelling a liquid detergent, comprising adding a polyethylene glycol fatty acid ester (b) having two fatty acids in one molecule to liquid potassium soap (a) as a detergent.   A liquid detergent characterized by adding polyethylene glycol fatty acid ester (b) having two fatty acids in one molecule to liquid potassium soap (a) heated to 40 to 80 ° C., and then cooling to room temperature. Gelation method.