JPS6112800A - Transparent soap manufactured by machine kneading - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a transparent soap containing triethanolamine lauryl sulfate in a soap composition sent to a final extrusion machine when producing a transparent soap by a mechanical kneading (manufacturing) method.

[Conventional technology]

Conventional transparent soap is based on fatty acid soap, sugar,
Saccharides such as glycerin, sorbitol, propylene glycol, polyols, alcohols, etc. are used as clarifying agents, and these are heated and dissolved in a mixed solvent of lower alcohol such as ethanol and water, and then cooled and solidified. It is manufactured by a so-called frame line (manufacturing) method in which it is dried for 60 days and then stamped. Products using this border line method have excellent transparency, but as mentioned above, they require a long period of time to manufacture, so they have the disadvantage of poor production efficiency. On the other hand, the so-called machine kneading method, which performs kneading mechanically, can increase production efficiency, but even if conventional soap compositions are manufactured by the machine kneading method, only translucent products can still be obtained. . In addition, only a few transparent soaps manufactured by the machine kneading method can be found on the commercial market, and very few disclosures have been made regarding the composition or manufacturing method of the machine-kneaded transparent soaps. For example, (i) After completely saponifying the mixed fat and oil conventionally used for border-line transparent soap in the presence of natural rosin without adding electrolyte, the molten state is rapidly cooled into a thin layer using cooling rolls. A structure in which a glass-like transparent ribbon is obtained, dried, perfumed with a fatty acid content of 70% or less, mixed, roll-kneaded, and extruded by an extruder to obtain a transparent soap (German Republic Patent No. 574) (No. 927), (ii) Dry the neat soap to a moisture content of 17.8% to approx.
2%, and the sodium chloride content is within the range of 0.16% to 0.65%. Dry and solidified soap flakes are mixed with agitation and shearing to the soap mass, the temperature of the soap mass is raised between 39°C and 41.5°C, perfume, colorant, sorbitol, etc. are added, and milling with rolls and A configuration for obtaining a transparent soap bar by passing it through a refiner (U.S. Patent No. 2,
970.116), (iii) Before spray drying, add a mixture of polyethylene glycol and propylene glycol to neat soap, heat it to 150°C, vacuum spray dry it, and add 1% or less to the resulting soap pellets. fragrance and a mixture of polyethylene glycol and propylene glycol in equal amounts are added and mixed, lip lining is performed, the soap temperature is adjusted to 24°C to 38°C, and then extruded to obtain a transparent soap bar (U.S. Patent No. 3.864,2
No. 72), (iv) A composition in which fatty acid soap is kneaded with N-long chain acyl-optically active acidic amino acid-basic amino acid salt, water, etc., or further urea is added, and then extruded and molded by a mechanical kneading method ( Special Publication No. 59-550, Special Publication No. 59-19
596), (v) an alkali metal salt of N-long chain acylglutamic acid,
A structure (Japanese Patent Publication No. 51,551) has been disclosed in which water and, if necessary, a conventional clarifying agent are added to an ammonium salt, an alkalamine salt, etc., and then mechanically kneaded.

[Problems to be solved by the invention]

However, in these conventional techniques, problems such as a peculiar dark color and yellow-brown coloring remain when using natural rosin. Secondly, mechanical manufacturing methods do not provide sufficient transparency. Further, in this case, it was inappropriate to use a cooling drum or a band dryer, which are conventional dryers. This is followed by the emergence of better transparent soaps produced by mechanical mixing methods.

[Means to solve the problem]

In order to solve the above problems, the present inventors have conducted intensive research and found that when triethanolamine lauryl sulfate is blended and added to soap flakes or pellets obtained through a drying process. It was discovered that the transparency of the soap bar obtained by extrusion was improved, and the present invention was completed after considering the method of adding the soap bar. In other words, when producing transparent soap using the machine kneading method,
The solution is that the soap composition delivered to the final extruder contains from about 2% to about 6% by weight of triethanolamine lauryl sulfate. In this invention, the timing of addition of triethanolamine lauryl sulfate is not specified, and it may be added to neat soap glue in thalassochar prior to the drying process, or added to neat soap glue using cooling rolls, band dryers, and vacuum. It may be added to dried soap flakes or soap pellets after a drying process using a dryer or the like. The amount of triethanolamine lauryl sulfate added must be within the range of less than about 2% by weight and 6% by weight based on the soap composition, and if it is less than about 2% by weight, sufficient transparency cannot be obtained in the soap. First, if it exceeds about 6% by weight, the soap bar extruded by the extruder will be too soft and unsuitable for mechanical kneading. Further, in this case, the transparency is also worse than that of a soap bar without triethanolamine lauryl sulfate added, and the soap has no value as a transparent soap. According to the prior art, the limit amount of fragrance added to transparent soap is 1% by weight, and adding more than this has a negative effect on transparency. Therefore, conventional transparent soaps could not be sufficiently scented. On the other hand, when triethanolamine lauryl sulfate according to the present invention is blended and added to a soap composition, no decrease in transparency is observed even when 1% by weight or more of fragrance is added, and within the range of 1% by weight. The fragrance is not limited to , and can be added in an appropriate amount depending on the nature of the fragrance. In this case, the fragrance is added to a soap base prepared by subjecting the soap composition to a conventional drying process, such as vacuum spray drying or drying with a cooling drum and band dryer. Furthermore, the type of flavor added is not particularly limited. Next, in the production of transparent soap using the machine kneading method,
In the conventional technology, the drying method of neat soap is also a factor that affects the transparency, but with the addition of an appropriate amount of lauryl sulfate triethanolamine according to the present invention, there is no effect at all due to differences in drying methods, and there are no limitations due to drying methods. There is no need to consider it. In addition, in the case of fatty acid soap, disadvantages such as reduced foaming in hard water and generation of soap scum during use are unavoidable, but the addition of an appropriate amount of triethanolamine lauryl sulfate according to the present invention is effective even in hard water. Since it has foaming power and cleaning power, the present invention can be said to relate to a transparent soap with improved hard water resistance, and these can be said to be a great advantage in the industrial production of transparent soap. In addition, in this invention, it is not necessarily necessary to add a clarifying agent that is generally used in transparent soaps manufactured by a mechanical mixing method, but in order to obtain better transparency, it is necessary to add a clarifying agent. about 2% to about 7% by weight of the curing agent.
It is preferable to add and use it within the range of . As mentioned above, examples of the clarifying agent include sugar, glycerin,
Saccharides such as sorbitol and propylene glycol, polyols, and alcohols are known, and one or more of these may be selected as appropriate.

[Effect]

The reason for the improvement in transparency due to the above structure is not clear, but the so-called mechanical kneading process, such as milling with a roll mill or passing through a refiner, which applies shear and turbulence to the soap mass, is the reason why the lauryl sulfate trichloride added to the soap composition is It is presumed that the transparency was improved in combination with ethanolamine. Further, it is preferable that a predetermined amount of a clarifying agent (clarifying agent), which is generally used in the production of machine-mixed transparent soaps, is added, since transparency can be enhanced in a reinforcing manner.

[Examples] Examples of the present invention will be described in detail below, but it goes without saying that the present invention is not limited thereto. Comparative Example] Sodium soap (meaning anhydrous soap, the same applies to the following examples) consisting of 80 parts by weight of beef tallow and 20 parts by weight of coconut oil 77.0% by weight - Glycerin as an example of a clarifying agent (as shown below) 3.0% by weight ・Polyethylene glycol with an average molecular weight of 314,000 1.
A composition consisting of 0% by weight and 19.0% by weight of water was obtained by a vacuum spray drying method, subjected to roll milling and refiner treatment, sent to a final extruder, and extruded from there to obtain a control soap. I made a prototype bar. [Example 1] - 71.8% by weight of sodium soap consisting of 80 parts by weight of beef tallow and 20 parts by weight of coconut oil - 5.9% by weight of glycerin - 0.9% by weight of polyethylene glycol with an average molecular weight of 4000 - Triethanolamine lauryl sulfate A composition consisting of 3.3% by weight and 18.1% by weight of water was obtained by cooling and solidifying in a cooling drum, then drying in a band dryer, subjected to roll milling and lip inner treatment, and sent to a final extruder. [Example 2] Sodium soap 70.9% by weight consisting of 80 parts by weight of beef tallow and 20 parts by weight of coconut oil, 5.8% by weight of glycerin. A composition consisting of 1.0% by weight of polyethylene glycol with an average molecular weight of 4000, 3.3% by weight of triethanolamine lauryl sulfate, and 17.8% by weight of water was obtained by a vacuum spray drying method, and this, ・Fragrance. After adding 1.2% by weight (for example, an aldehyde-like green blended fragrance, the same applies hereinafter), it is subjected to roll milling and refiner treatment, sent to a final extruder, and extruded from there to form the invention product (2). [Example 3] - Sodium soap 70.8% by weight consisting of 80 parts by weight of beef tallow and 20 parts by weight of coconut oil - 5.7% by weight of glycerin - 1.0% by weight of polyethylene glycol with an average molecular weight of 4000 % - 3.3% by weight of triethanolamine lauryl sulfate - 18.0% by weight of water A composition was obtained by cooling and solidifying in a cooling drum, and then drying in a band dryer, which contained: - Fragrance 1. After adding 2% by weight, it was subjected to roll milling and refiner treatment, sent to a final extrusion machine, and extruded from there to produce a prototype soap bar as invention product (3). [Example 4] Beef tallow 80 Sodium soap 74.2% by weight and 20 parts by weight of coconut oil, glycerin 2.9% by weight, polyethylene glycol with an average molecular weight of 4000 1.0% by weight, triethanolamine lauryl sulfate 3.9% by weight, water 18 A composition consisting of . A prototype soap bar, invention (4), was produced. [Example 5] - 73.4% by weight of sodium soap consisting of 80 parts by weight of beef tallow and 20 parts by weight of coconut oil - 5.7% by weight of glycerin - 1.0% by weight of polyethylene glycol with an average molecular weight of 4000 - Triethanolamine lauryl sulfate A composition consisting of 3.3% by weight and 17.8% by weight of water was obtained by a vacuum spray drying method, and after adding 1.2% by weight of perfume, it was subjected to roll milling and refiner treatment to reduce the final pressure. The soap bar was sent to the extraction machine and extruded from there to create a prototype soap bar, which became the invention (5). [Reference example] - I-I consisting of 80 parts by weight of beef tallow and 20 parts by weight of coconut oil
Jum soap 71.7% by weight
・Glycerin 2.8% by weight・
A composition consisting of 0.9% by weight of polyethylene glycol with an average molecular weight of 4000, 6.4% by weight of triethanolamine lauryl sulfate, and 18.2% by weight of water was obtained by a vacuum spray drying method, and this was subjected to roll milling and refiner treatment, We sent it to the final extrusion machine and extruded it from there to create a prototype soap bar as a reference product. Control products and invention products (1) to (5) thus obtained
Regarding the transparency test of the reference product and the reference product, the appearance of the soap bar was observed by an expert with the naked eye and evaluated. The evaluation results are shown in the table below. Transparency test

【Effect of the invention】

As mentioned above, when producing transparent soap by the machine kneading method, the final pressure is increased by adding triethanolamine lauryl sulfate to the soap composition sent to the final extrusion machine so that it contains within a predetermined range. Regardless of whether the soap bar extruded from the extruder is dried using the traditional band drying method using cooling rolls or the vacuum spray drying method, excellent transparent soap can be produced, increasing production efficiency. This makes it possible to increase mass production and reduce costs. Furthermore, since the limit amount of fragrance added is not limited to 1% by weight, it is possible to add an appropriate type of fragrance in excess of 1% by weight, which is suitable for making the product even more luxurious. be.

Claims (1)

[Claims] (1) When producing transparent soap by the mechanical kneading method, the soap composition sent to the final extruder contains triethanolamine lauryl sulfate in the range of about 2% by weight to about 6% by weight. Transparent soap manufactured by a machine kneading method characterized by: