JPH03167300A - Transparent soap composition - Google Patents

Abstract

PURPOSE:To provide a low-cost transparent soap composition excellent in transparency, workability, productivity, etc., by mixing a soap base, a specified phosphoric ester ampholytic surface active agent, a sorbitol, and water at a specified weight ratio and milling the mixture. CONSTITUTION:57-92wt.% soap base (e.g. a sodium salt of a 10-18C fatty acid) is mixed with 2-15wt.% phosphoric ester ampholytic surface active agent of formula I or II (wherein R1 is 10-18C straight-chain alkyl), 3-13wt.% sorbitol, and water. A transparent soap composition is produced by the mechanical mixing method wherein the mixture is kneaded, extruded, and stamped. Examples of the surface active agent of formula I or II include 2-[dimethyl(2- hydroxydodecyl)ammonio]ethyl phosphate and 2-[dimethyl(3-decyloxy-2- hydroxypropyl)ammonio]ethyl phosphate.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides transparent soap &[l] produced by a mechanical kneading method.
It is about majesty. More specifically, soap base and
Amphoteric phosphate ester surfactant, sorbitol,
This invention relates to a transparent soap composition characterized in that it contains a specific amount of water and a transparent soap composition excellent in transparency and workability, which is produced by an 8g machine kneading method. [Prior art and problems to be solved by the invention] Conventionally, transparent soaps have been made by oxidizing or neutralizing mixed fats and oils such as beef tallow and coconut oil, or mixed fatty acids such as beef fatty acids and coconut oil fatty acids with an aqueous solution of caustic soda. The resulting soap dough was dissolved in lower alcohol and water, then as a clarifying agent,
Transparent soap dough prepared by adding sugar, glycerin, polyethylene glycol, etc. and heating it to make it uniformly transparent is poured into a designated mold, allowed to cool and solidify, and then taken out.
After cutting, ■ chamfering, and ■ drying, the product is obtained by repeating the manufacturing process of ■ boiling in water, ■ shaping, ■ glazing, and ■ drying, but it takes a long time to manufacture, and the manufacturing process is It is complicated and
It has drawbacks such as extremely low productivity and high manufacturing costs. The present invention is Rti! The purpose is to provide a transparent stone aatu precept that is manufactured by a kneading method and has good transparency and workability. [Means for Solving the Problems] The present invention comprises a soap base of 57 to 92% by weight and the following general formula (1) or (2). The amphoteric phosphate ester surfactant represented by
~15% by weight. A transparent soap composition containing 3 to 13% by weight of sorbitol and water, manufactured by a mechanical kneading method. The soap base used in the present invention is a known substance and is mainly a sodium salt of a fatty acid having 10 to 18 carbon atoms,
It usually contains 10 to 15% water by weight, and its blending amount is 57% by weight.
~921i1%, and if it is less than 57% by weight, the stone & iill composition extruded with a professional 7 machine will be soft and difficult to mold, and if it exceeds 92% by weight, it will not have sufficient transparency for soap. This is not desirable as it does not provide The amphoteric phosphate ester surfactant represented by the general formula (1) or (2) used in the present invention is, for example, 2-[
Dimethyl(2-hydroxydodecyl)ammonio]ethyl phosphate, 2-[dimethyl(2-hydroxytetradecyl)ammonio]ethyl phosphate, 2-[dimethyl(2-hydroxyhexadecyl)ammonio]ethyl phosphate. 2-[dimethyl(2-hydroxyoctadecyl)ammonio]ethyl phosphate. 21 [
Dimethyl(2-hydroxyeicosyl)ammonio]ethylphosphate, 2-[dimethyl(3-decyloxy-2-hydroxyprobyl)ammonio]ethylphosphate. 2-(dimethyl(3-dodecynoleoxy-2-
Human 'a-bilene ammonio]ethyl phosphate}. 2-(dimethyl(2-hydroxy-3-tetradecyloxypyl)ammonio)ethyl phosphate.2-[dimethyl(3-hexadecyloxy-2-hydrodecyloxypyl)ammonio)ethylphosphate}. 2
-(dimethyl(2-hydroxy-3-occudecyloxyprobyl)ammonio)ethyl phosphate, etc. The blending amount is 2 to 15% by weight, and 2% by weight.
If it is less than 15% by weight, the soap will not have sufficient transparency, and if it exceeds 15% by weight, the soap extruded by the brodder will be soft and difficult to shape, which is not preferable.
The sorbitol used in the present invention is generally anhydrous sorbitol or a sorbitol solution. The blended amount of sorbitol shown in the present invention is a pure content equivalent value, and the blended amount is 3 to 13% by weight. If it is less than 3% by weight, sufficient transparency cannot be obtained for the soap, and if it exceeds 13% by weight, However, soap extruded in a brochure is not desirable because it is soft and difficult to form. The water used in the present invention is distilled water. Purified water such as ion exchange water is commonly used. The amount of water blended is approximately 3 to 15% by weight, but the amount of water blended is naturally adjusted depending on the water content of the soap base and sorbitol solution, etc., and the water content of the final transparent soap & II is approximately It is preferable to adjust the amount to 15 to 25% by weight. If the amount of water is less than this range, the soap will not have sufficient transparency, and if it is more than this range, the soap mixture extruded by the brooder will be soft and difficult to form, which is not preferable. Stone a of the present invention
The precepts may further include other precepts within the scope of achieving the purpose of the present invention. In other words, it is a moisturizing agent used in ordinary soaps. Superfatting agent, foaming agent, antioxidant. Fragrance. dye. PH adjuster. Sequestering agent for metal ions. Bactericide, anionic surfactant (linear alpha olefin sulfonate having 12 to 28 carbon atoms). Amphoteric surfactants (ξdazoline type, betaine type, substituted amino acid type), higher fatty acid alkanolamide (higher fatty acid monoethanolamide, higher fatty acid diethanolamide, etc.). Other oily substances (
Lanolin. fL dynamic paraffin. (solid paraffin, etc.) can be combined. In the present invention, it is not necessarily necessary to add the clarifying agents used in transparent soaps, but in order to obtain better transparency, it is preferable to include these clarifying agents. As mentioned above, polyols such as sugar, glycerin, propylene glycol, polyols, alcohols, etc. are known as the clarifying agent, and one or more of these can be selected as appropriate. You can. In addition, in the present invention, the timing of addition of the amphoteric phosphate ester surfactant, sorbitol, and water is not specified, but it may be added to the soap in the clutch 11, or added to the soap in the band dryer. It may also be added to soap flakes or soap pellets after drying using a vacuum dryer or the like. The method for producing the soap composition of the present invention involves adding a soap base, an amphoteric phosphate ester surfactant, solgotol, water, and optional subdivisions as necessary. This manufacturing method involves mixing while heating, kneading, extruding, and molding using the usual mechanical kneading method. [Examples] Next, the present invention will be explained with reference to Examples, but the present invention is not limited to these Examples. The tests described in this example are as follows. (1) Transparency evaluation test A transparent soap composition was cut into sample pieces with a thickness of 2 CIl1,
After further polishing the surface to make it smooth, the visible light transmittance L% of the sample piece was determined using a colorimeter (manufactured by Nippon Denshoku Kogyo, Model ND-1001DP), and this value was taken as the transparency. (2) Workability test A skilled engineer judged the hardness and moldability of the transparent soap & luggery par extruded using a plodder. Moderate hardness of the bar is indicated by 0, soft bar hardness is indicated by ×, good moldability is indicated by O, and poor formability...
・Indicated by ×. Example 1 Soap base (Na salt of a mixture (80:20) of beef tallow fatty acid and coconut oil fatty acid, containing 12% water) 67% by weight. 2-[
Dimethyl(2-hydroxydodecyl)ammonio]ethylphosphate}10m%. Sorbitol 10% by weight.
Water 13% by weight. After mixing and stirring in a mixer, knead thoroughly with a roll, then extrude into a rod shape with an extruder whose nozzle was kept at 45°C, shape it with a molding machine, and make it into a main body using the usual mechanical kneading method. I got the invention soap #Ji precept. Comparative Example 1 Next, for comparison, 2-[dimethyl (2-hydro Example 1
In the same manner as above, the soap and U samurai of Comparative Example 1 were obtained. Table 1 shows the results of the various tests conducted on these majestic stones as described above. Table 1 As is clear from the results in Table 1, the transparency of the stone IIli&ll of the present invention (Example 1) is such that the light transmittance is 4.
1, which is extremely high, whereas the light transmittance of the soap composition of Comparative Example 1 is inferior to 5, indicating that its transparency is not as good as that of the transparent soap composition of the present invention. Examples 2 to 5 and Comparative Examples 2 to 5 The soap compositions of Examples 2 to 5 and Comparative Examples 2 to 5 were obtained in the same manner as in Example 1 using the formulations shown in Table 2 below. The test results are shown in Table 2. In addition, the soap base has a moisture content of 10%.
As is clear from Table 2, Example 2 contains
Comparative Example 2 and Comparative Example 3 without blending 2-(dimethyl(2-hydroxyhexadecyl)ammonio)ethyl phosphate, Comparative Example 4 without blending sorbitol, and Comparative Example 5 without blending water are shown in ~5. , light transmittance is 7
It can be seen that the transparency is inferior to the following and the transparency is not as good as that of the transparent stone a & kumikaimono of the present invention. Examples 6 to 9 and Comparative Example 6 to
B The soap compositions of Examples 6 to 9 and Comparative Examples 6 to 8 were obtained in the same manner as in Example 1 using the formulations shown in Table 3 below. The test results are shown in Table 3. In addition, the soap base has a moisture content of 12
As is clear from Table 3, Example 6 contains
The transparent stone whale #Jilti products of the present invention shown in items 9 to 9 have extremely high light transmittance of 35 or more, and also have good workability.
In addition, in the soap compositions shown in Comparative Examples 6 to 8, in which the blending amount of the essential precepts of the present invention is outside the range, the soap ui products extruded with a progu are soft and difficult to form. Therefore, it is not desirable, and its transparency is also poor. Comparative Examples 9 to 11 The same procedure as in Example 1 was carried out using the formulations shown in Table 4 below to obtain soap compositions of Comparative Examples 9 to 11. As is clear from Table 4, Comparative Example 9 contains glycerin as another clarifying agent without containing sorbitol, which is an essential ingredient of the present invention, and Comparative Example 9 contains polyethylene glycol 600 (average molecular weight: 1600). Each of the soaps of Example IO and Comparative Example 1l formulated with propylene glycol IJIrli.
The material had an inferior light transmittance of 13 or less, and its transparency was not as good as the transparent soap composition of the present invention, indicating that the action and effect of sorbitol, which is an essential precept of the present invention, is remarkable. Example 10 Soap base (Na salt of a mixture (80:20) of beef tallow fatty acid and coconut oil fatty acid) 70% by weight. 2-[dimethyl(2-hydroxyoctadecyl)ammonio]ethyl phosphate 14.0% by weight, sorbitol 10M%. 4% water by weight. Glycerin 1. 0% by weight, 0% dodecylic acid. 1% by weight 3 Fragrance 0. 5% by weight, edetate tetrasodium tetrahydrate 0. 1% by weight. Dodecylic acid diethanolamide 0.
A soap composition of the present invention was obtained in the same manner as in Example 1 by adding 3% by weight. Example 11 Soap base 1 (!! (Mixture of beef tallow fatty acid and coconut oil fatty acid (
82.4% by weight of Na salt (80:20), 3.5% by weight of 2-[dimethyl(2-hydroxy-3-octadecyl-oquineprobyl)ammonio]ethyl phosphate. Sorbitol 5% by weight, water 8% by weight, polyethylene glycol 600 (average molecular weight 600) 0. 5% by weight
．． Fragrance 0. 5% by weight. Edetate tetrasodium tetrahydrate 0
．． A soap composition of the present invention was obtained in the same manner as in Example 1 by adding 1% by weight. Example 12 Soap base (Na salt of a mixture of beef tallow fatty acid and coconut oil fatty acid (80:20)) 75.3% by weight, 2-[dimethyl (2
-hydroxyeicosyl)ammonio]ethylphosphate}10% by weight. Sorbitol 8% by weight. Water 5% by weight.
N-mixed fatty acid-sodium L-glutamate 1% by weight
, 3.4.4-trichlorocarbanilide 0. 1% by weight
, fragrance 0. 5% by weight, edetate tetrasodium tetrahydrate 0
．． A soap composition of the present invention was obtained in the same manner as in Example 1 by blending 1% by weight. Example 13 Soap base (mixture of beef tallow fatty acid and coconut oil fatty acid (80:20) Na salt and K salt mixture (90:0 summer)) 83.4
% by weight, 2-[dimethyl(3-dodecyloxy-2-hydroxybutyvir)ammonio]ethylphosphate 5
Weight%, Sorbitol 5m amount%. Water 5% by weight. Coconut oil alkyl N-carboxyethyl N-hydroxyethylimidazolium betaine-sodium 1% by weight, dye 0.0
1% by weight. Fragrance 0.49% by weight, edetate tetrasodium tetrahydrate 0. A soap composition of the present invention was obtained by blending 1% by weight and using the same birch as in Example 1. (Characteristics) Examples 10 to 13 all gave good results in each of the above tests, and obtained transparent soaps with good transparency produced by the machine kneading method, which is the object of the present invention. Ta. [Effects of the Invention] As described above, the transparent soap composition of the present invention can be manufactured by a mechanical kneading method, and a transparent soap composition with excellent workability and good transparency can be obtained, and production efficiency can be improved. This makes it possible to mass produce and reduce costs, making it possible to provide useful transparent soap bottoms. 6. Amendment to procedures subject to amendment (method) March 30, 1990 l. Display of the case 1999 Patent Application No. 308589 2 Name of the invention Transparent soap composition & person making amendments Relationship to the case

Claims (1)

[Claims] 57 to 92% by weight of the soap base and the following general formula (1) or (2) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ ... (1) ▲ Mathematical formulas, chemical formulas, tables, etc. ▼...(2) (In the formula, R_1 represents a linear alkyl group having 10 to 18 carbon atoms.) 2 to 15% by weight of an amphoteric phosphate ester surfactant and 3% by weight of sorbitol. A transparent soap composition produced by a mechanical milling method containing ~13% by weight of water.