SE441187B - FLOATING TWO COMPOSITION - Google Patents

Description

Accordingly, a liquid soap composition according to the invention contains substantially 12 to 40% by weight of potassium soaps of saturated fatty acids having predominantly 12, 16 and 18 carbon atoms in the molecule, 0 to 20% by weight of glycerol and 20 to 5% by weight of an alkylene glycol selected from the group consisting of 1 , 3-propylene glycol, ethylene glycol, di- and triethylene glycol and mixtures thereof, the remainder being water.

The composition preferably contains 0 to 15% by weight of glycerol and 15 to 5% by weight of the alkylene glycol. The fatty acid composition may also contain other fatty acids in smaller proportions, but in order to obtain satisfactory solder properties, it is desirable that the proportion of C12 fatty acid be in a slight excess relative to the amount of C1 and C18 fatty acids in the composition.

All percentages relate to the weight of the total composition, unless otherwise stated.

The aluminum soaps of the fatty acids having predominantly 12 clathoms in the molecule are preferably derived from commercial grades of lauric acid, which may also contain C10 and C1A fatty acids in minor amounts. Other suitable sources of C12 fatty acids are fatty acids derived from various nut oils, such as coconut oils and palm kernel oils, especially those fractions which are freed from lower fatty acid components by fractional distillation. The liquid soap product according to the invention preferably contains approximately 7 to 20% by weight of potassium laurate. the ïalium soaps of the fatty acids with predominantly 16 oc; LS carbon atoms in the molecule are preferably derived from commercial grades of stearin, which may also contain fatty acids with different chain lengths in smaller proportions. Another suitable source of C16 - C18 fatty acids is fully hydrogenated tallow fatty acids and other animal fats containing high proportions of C16 - C18 fatty acids. Preferably, the proportion of potassium C16 - C18 fatty acid soaps to 7810414-so 3 amounts to about 5 - 20% by weight of the total liquid soap product according to the invention.

The liquid soap product according to the invention may further contain the common additives, when desired, e.g. a suitable perfume, dyes, preservatives, thickeners] and germicides. According to a preferred embodiment of the product according to the invention, it contains the same free fatty acids in a rf vi of: ;; tïfl 10 i, preferably 2 - 5 3 of the total composition, in order to obtain greasing properties. A particularly suitable re-greasing agent is stearic acid, which can be used alone or in combination with other greasing agents well known in the art. A further improvement of the product, although not essential to the invention, can be obtained by adding a small amount of a thickener. A desirable viscosity range is from about 10000 to 2COO cP at 10-25 ° C. The use of thickeners can be reduced to a minimum by the presence of a small amount of sodium soap. The exact amount that may be needed Sat regulation of the consistency of the product is not critical but is obvious to an average person skilled in the art.

The creamy liquid soap composition according to the invention L 2 is prepared as follows: Glycerin and / or alkylene glycol and water in suitable weight proportions are introduced and mixed in a container equipped with ox stirrer with slow stirring until a homogeneous Llanding is obtained. The mixture is then heated to about 65 - SSOC and then the required amount of calcium hydroxide is added.

After slow stirring, the required amount of fatty acid is added gradually in two steps, i.e. the lower fatty acids containing C12 fatty acids are first added with slow stirring until a clear solution is obtained and then the higher fatty acids containing C16 - C18 fatty acids are added. Stirring is continued until a clear solution is obtained. The heating is then stopped and any additional components can then be added. When the last component is added, the product is left in the container to cool very gently and slowly, ie. at a temperature drop not exceeding 10 ° C per hour.

If a thickener is used, it may conveniently be mixed with a portion of the glycerol and / or the mixture of glycol and water. Any sodium hydroxide required may be added along with the potassium hydroxide solution.

Slow stirring and gentle cooling are important measures in the process to promote the formation of a fine suspension of small crystals of potassium stearate, which is clearly distinguishable under a microscope and is responsible for the pure white appearance of the product.

Eastig kv 'u'j tend to cause flocculation of potassium stearate, which separates, especially near the wall of the bone holder, in the form of white lumps. A suitable device for carrying out the method according to the invention is a jacketed stainless steel mixing tank provided with a slowly rotating stirrer.

The jacket of the mixing tank enables heating with indirect steam or hot water and is also a means of slow and gentle cooling when the steam or hot water is switched off and the tank with its contents is left to be stored under ambient conditions or cooled with a coolant.

The invention is further described by the following examples.

Examples 1-5.

The following creamy, white, liquid soap products were prepared: 7s1o414 ~ a 5 Composition 1 2 3 4 5% by weight Coconut fatty acid 3.45 3.45 3.45 3.45 3.45 Lauric acid (technical quality) 4.70 4.70 4 .70 4.70 4.70 Stearic acid (technical 6.85 6.85 6.85 6.85 6.85 quality) Glycerol 5.0 10.0 ~ - - Propylglycol ~ ~ - - 10.0 - Diethylene glycol 5.0 5.0 10.0 - - Triethylene glycol - - - ~ 10.0 Ralium hydroxide (36 1) 7.82 I 7.82 7, E2 7.62 7, ä¿ Sodium hydroxide (50 s) 0.24 0.24 C .24 0.24 0.14 Hydroxyethylcellulose 0.65 0.65 C, E5 0.55 0.55 (thickener) Sodium tetraborate - 10 H 2 O 0.34 0.34 0.34 0.34 0.34 Par- m 0 0.30 0.30 ~ ~ Water 65.65 65.65 65.65 66.05 66.05 fix * <The hydroxyethylcellulose was dispersed in the glycol and slowly added to 50% of the water in the container with slow stirring. The sodium tetraborate was then added and mixing was continued until a clear solution was obtained and then the remainder of the water was added.

The mixture was heated to 75 ° C and potassium hydroxide and sodium hydroxide were then added with stirring. Coconut fatty acid, lauric acid and stearic acid are then added in this order with stirring. With continued stirring, the product cooled slowly. Perfume was added when the temperature reached a value below 55 ° C.

Eraduct specifications vlsï-: osity (CP) at io and 2o ° c lids; - isoo Free fatty acid,% 2,5 Tocal fatty acids,% l5,0 The above compositions were stored at 3500 for 3 months and remained stable. 7810414-8 6 Panel test gave no indication of skin irritation, unpleasant odor or feeling on the hands during or after use.

The foaming properties in use were assessed at a dosage of the product corresponding to 0.7 g with slightly soiled hands using water with a hardness of 18 ° GH. A 10% conventional toilet soap solution was used as a comparative material.

All compositions 1 ~ 5 were superior to the 10; - topped toilet toilet solution.

Soap compositions were stored in various commercial soap dispensers. These were not blocked after remaining unused for 25 days.

Example 6.

In the same manner as described in Examples 1-5, the following creamy, white, liquid soap compositions were prepared. composition 6 vi * ttro: e “t Water 53.2 Glycerol 10.0 Diethylene glycol 5.0 Potassium laurate 13.2 Potassium palmitate 5.8 Potassium stearate 5.8 Sodium laurate 0.8 Ha / K soap of other fatty acids 1.8 me? C10 * C14 * C17) Free stearic acid 3.5 Perfume, preservative, 0.9 thickener Example 7.

The following compositions were tested for "drying effect" and physical stability. 7810414-8 mo _ @@ mø _ @@ mo. @@ ma _ @@ mo _ @@ mo. @@ mo _ @@ «mo« m_o w «.: wm_o« ~ _o «mo« m_o mm_o mm.o mm_c mm_o mm_o m @_o mm.ow ~ .o «~ _o« -o «~ _o« ~ _o w ~ .ow ~ _o ~ w.ß ~ w_ ~ ~ w. ~ N @. ~ ~ m_> ~ m_> ~ æ_ß oo ~ 1 1 1 1 1 1 1 o_o ~ 1 1 1 1 1 1 1 oo ~ 1 1 1 1 1 1 1 o_oH 1 1 1 1 1 1 1 o_oH 1 1 III 1 1 3 ~ OH I 1 1 1 1 1 1 oo ~ mw. @ mw_ @ mw_ @ mw \ @ mw_ @ mw_ @ mw ~ @ o>. «o» _ «oß.« oß. @ o> _ @ o> _ «oß_« m «.mm« _m m «.Mm @ _m m« .mm «_m m« _m mm QQU u mm <Qß mß mo _ @@ mo. @@ cmuumw w ~ .o «mo GN: o fi. xøuom mm_o mm_o ømo ~: fi H @ u ~> »w fi xo ~ @» m wm ~ O wm.O Aw Omv $ Om fi Nw. ~ ~ w.> .W wmv: om 1 1 Hou fl nnom 1 1 Høxæ fi mcø fl æxom 1 1 Oøo Homh fl wcm øcm fl 1 Oow fl oxx fi wcm fi mumæ fi øm 1 1 øow fl oxw fl mam fl wpww fl om 1 1 ~ 0x> ~ mcm fl æmOum II _OxA ~?: U ~% 4U fi Ah OC ~ 1 _0mw ~ m: o ~> «m« 3 1 O.OH ~ 0xæ ~ mæ.w mæ.m ^ pwuH fi m> x xw fl cxmuv muæmc fl umwum oß.w Oß_w Aumu fl Hm> m xw fl cxouv muæwc fl uswq mw ~ m mv \ m muhwuwwmußcmøxnm Nß Hß ^ u: moGum »x: moGum» x. The tendency to dehydration was examined by means of a test, whereby a quantity of the product was stored in open petri dishes for a period of 5 days. The water loss was determined and the hardness of the residue was assessed. The results of this study are given in the following table: Table.

Hardness of the residue after 5 days of composition via 2 ° C / 65 at 5 ° C / 30 ° F; stability relative relative at 35 ° C humidity humidity after 1 month 71 very soft soft good 77 very soft soft good 7; very soft soft good 7¿ fairly soft hard good A- hard close insæoii B hard hard unstable C hard hard unstable D hard hard unstable E hard not judged unstable: the 71 - 74 according to the invention seemed to be well stable and did not show any serious tendency to dehydration under normal conditions.

Claims (2)

7810414-8 CLAIMS 1. Liquid soap composition containing substantially L2-40% by weight of potassium soaps of saturated fatty acids having predominantly 12, 16 and 18 carbon atoms in the molecule in an aqueous glycerin solution, characterized in that it as a substitute for at least half of the glycerin contains 20-5% by weight of an alkylene glycol selected from the group consisting of propylene glycol, ethylene glycol, di- and triethylene glycol and 0-20% by weight of glycerin. Liquid soap composition according to claim 1, characterized in that the alkylene glycol is diethylene glycol. SHOW QUALITY