DE1198479B - Detergent piece - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

ClId

German class: 23 e-2

Number: 1198 479

File number: C 22065IV a / 23 e

Filing date: August 3, 1960

Opening day: August 12, 1965

It is known that detergent bars made from alkali soaps of higher fatty acids with a content of different to manufacture synthetic organic laundry raw materials.

In the USA. Patent 2,749,315 detergent bars are proposed which -aminomethansulfonat least about 50 ° / ₀ water soluble soaps of higher fatty acids, 10 to 45% of a mixture of higher Fettsäuremonoglyceridsulfat and N- (acyl), and 0 to 25% of higher alkyl aryl sulfonate and Contains 5 to 15% water.

Finally, it is known in detergent bars with a content of synthetic detergent raw materials To use starch as a binder and filler material.

In the manufacture of detergent bars from alkali soaps of higher fatty acids and synthetic ones With organic laundry raw materials, it is of decisive importance, the type and quantity of the laundry raw materials used to be coordinated in such a way that the washing raw material mixture can be easily processed and a Durable detergent bar results, which meets the numerous requirements for z. B. the Cleaning action, foam formation and resistance, etc. are sufficient and not too high solubility and shows little tendency to soften or become greasy.

Since the requirements for a detergent bar have increased steadily in recent years and through Continuous research to develop new and improved detergent bars need such Pieces that could be considered excellent just a few years ago are now considered inadequate will.

A criterion for quality that is very much in the foreground from the consumer's point of view of a detergent bar consists in the fact that a good detergent bar has little or no effect in hard water should not result in any greasy lime soap deposits in the sink or in the bathtub leave the familiar dirty edges that can only be removed by scrubbing.

The detergent bars known to date do not meet the increasing requirements in this regard more. Also the detergent bars described in US Pat. No. 2,749,315 containing N- (acyl) aminomethanesulphonate do not have a lime soap dispersibility that meets today's requirements.

It has now been found that the N- (acyl) -aminoalkanesulfonates with 2 to 4 carbon atoms in the alkane radical, the N- (acyl) -aminomethanesulfonates in Detergent bar

Applicant:

Colgate-Palmolive Company,
New York, NY (V. St. A.)

Representative:

Dr. rer. nat. J.-D. Mr. v. Uexküll, patent attorney,

Hamburg-Hochkamp, Königgrätzstr. 8th

Named as inventor:

Raymond Michael Anstett, Hazlet, N.J .; Russell Edward Compa,

Emerson, N. J. (V. St. A.)

Claimed priority:

V. St. v. America dated August 12, 1959 (833 152), January 7, 1960 (920 942)

are amazingly superior in their lime soap dispersibility.

It was further found that by combining N- (acyl) -aminoalkanesulfonates having 2 to 4 carbon atoms in the alkane radical with alkali soaps of higher fatty acids, very specific chain length composition the settling of lime soap deposits can be further reduced.

Finally, it was found that in a substantially higher proportion of certain alkali soaps Fatty acids, N- (acyl) aminoalkanesulfonate, fatty acid glyceride sulfate and alkylarylsulfonate Detergent bar replaces the alkylarylsulfonate with approximately the same amount of alkali-resistant starch can be without affecting the advantageous properties of the detergent bar.

According to the invention, a detergent bar is therefore proposed with a higher alkali soap content Fatty acids, fatty acid monoglyceride sulfate, alkylaryl

509 630/382

3 4

sulfonate and N-CAcyty-aminoalkanesulfonate, gekenn- trium-N-Cacyty-aminopropanesulfonat, whereby the acyl-

Characterized by the rest of the hydrogenated coconut fatty acids.

A. a content of N- (acyl) -aminoalkanesulfonate of the The water-soluble alkali soap of the general invention Mixtures according to the formula contains a predominant

π CQ XT /(-.τι· \ OQ __ T ^ r 5 Content of usually over 75% soda soap

ι ^^ vm ^ ₃ mc ₆₅ “^ of _{the fatty acid content are} saturated fatty acids.

_(r „ ν TT The soap consists predominantly, preferably over

(CH ₂ J ₇₁ H ₈₅ ο j ^ _{p ettsäuren m} i _t big γι 18 carbon atoms

wherein R is an alkyl radical with 11 to 17 carbon and contains defined amounts of fatty acids with 12 to

atoms and Me represents an alkali metal, io 14 and 16 to 18 carbon atoms. Such soaps

m = 2 or 3, η = 0.1 or 2 and η and m can be achieved through a suitable combination of natural oils

taken together 2, 3 or 4 and preferred and fats with known fatty acid contents z. B. by

wise is 3, and combination of coconut oil or hydrogenated coconut oil

B. a composition with tallow in a weight ratio of 1: 0.25 to 2, preferably

a) 45 to 65%> preferably 50 to 60%. * 5 wise 1: 1, can be made. Coconut oil and sebum soluble alkali soap, the fatty acid residues of which can also be obtained from other suitable starting materials over 65% are saturated and over 75% are replaced.

Fatty acid residues having 12 to 18 carbon atoms. The alkylarylsulfonate is preferably a sodium atom and of this 25 to 60% fatty acid polyalkylene benzene sulfonate with 10 to 18 carbon residues having 12 to 14 carbon atoms and ao atoms in the alkyl radical, e.g. B, tetra- or pentapropylene-75 up to 40% fatty acid residues with 16 to 18 carbon benzene sulfonate. Others in the alkylation of contain fuel atoms, benzene or its derivatives with petroleum fractions

b) 8 to 20%) preferably 10 to 17%, in the obtained or relatively straight-chain alkyl radicals Substantially saturated alkali fatty acid mono- are also suitable. Instead of benzene you can glyceride sulfate, 25 also its lower homologues, such as. B. toluene or

c) 3 to 10% alkali alkylarylsulfonate with 10 to xylene are used.

18 carbon atoms in the alkyl radical or 2 to Instead of the alkylarylsulfonate, about the

10%, preferably 3 to 7%, alkali-resistant equal amount of alkali-resistant starch used

Starch, preferably with an alkali number superior to ordinary starch,

less than 5, 30 as they are exposed to soap, synthetic detergents

d) 3 to 10%, preferably 4 to 8% alkali raw materials and moisture is not hydrolyzed N- (acyl) -aminoalkanesulphonate according to A, and not discolored or chemically changed in this way.

e) up to 7%> preferably up to 5% alkali. This strength should be used in the Schoch and chloride and / or alkali sulfate and Jensen ("Chemistry and Industry of Starch", 1950,

f) 6 to 16%, preferably 8 to 14% water. 35 p. 679 and 680) an alkali number of not more than 10, In a preferred embodiment, preferably contains 5 or less, yields. The essential

the detergent bar sodium sample according to the invention, however, is whether the strength is also

N- (acyl) -N-methyltauride, soluble sodium soap and not changed in the finished detergent bar. this

Sodium tetra- or pentapropylene benzene sulfonate. can result from the intended use of the detergent

The detergent piece can preferably also be 40 pieces and the alkali number can be predetermined, small amount, preferably 0.05-0.5% of a. The starch component has been found to be Bisulfite compound, in particular sodium metabisulfite amylopectin contained in the detergents according to the invention, pieces can be used advantageously. In the opposite

The constituents of the detergent set according to the invention for most natural starches is amyl

Pieces are in a manner known per se in a 45 opektin free of amylose, which is usually in the starch

Pilier machine rolled, extruded and found in amounts of up to 30%. Amylopectin

Soap press pressed into pieces that are marked and treated as well as modified starches

Nice cleaning properties, grip, excellent here under the general term »strength«

Foaming and good solubility, combined uniformly. Amylopectin and starch are used

Wear and good drying properties show formation of ethers, esters and other derivatives

without lime soaps that are insoluble when washing, which are often more soluble than the original material, and

fertilize to yield. other substances in the mixture according to the invention

The fatty acid glyceride sulfate can be able to replace in the fatty acid residue.

10 to 18 carbon atoms, preferably straight, are starch or amylopectin

Chain included. Such compounds are the 55 containing mixtures of bisulfite compounds.

Sodium monoglyceride sulphate, which may be hy- added, in order to break down the components of the washing

Avoid hydrogenated coconut oil fatty acids or the sodium or center piece. This effect of the bi

Potassium monoglyceride sulphate of hydrogenated tallow fatty acids. sulfite is evidently due to its property as a reducing

The alkali-N- (acyl) -aminoalkanesulphonate contains backing agents which oxidize the washing tube of the formula on column 3 prevents a fatty acid residue with a 60-starch complex. As a preferred one Sodium metabisulfite will combine 12 to 18 carbon atoms and possibly also inorganic bisulfite Methyl or ethyl radical on nitrogen, which turns that of the premix in solution or as Sum of carbon atoms in the N-alkyl fine powder can be added. Sodium bisulfite and in the aminoalkanesulfonic acid radical at most 4 and / or other alkali or other inorganic ones is preferably 3. These compounds include bisulfite and metabisulfite salts such as potassium magnedas Sodium N- (acyl) -N-methyltauride, in which the sium salts and the like, can also be used. Acyl residue is a mixture of palmitoyl and stearoyl, the bisulfite should expediently in amounts of minas Sodium-N-oleyl-N-methyltauride and the sodium are at least 0.05%, because smaller amounts

5 6

usually have no noticeable effect. Since the probably similar mixtures of different

Bisulphites are very reactive, they should only contain unwanted calcium carbonate in the soaps and washing pipe materials.

for color stabilization and the prevention of soap deposits. The inventive

Decompositions necessary amounts are added. Detergent bar dries relatively quickly

In most cases, 0.10 to 0.25% bisulfite is sufficient, 5 for an exceptionally appealing, shiny

to prevent discoloration due to aging, the surface, while other, otherwise good washing

without other components, such as B. Fragrances, middle pieces, which, in addition to soap, also contain monoglyceride

adversely affect. The amount of bisulfite can contain sulfate and alkyl aryl sulfonate, very slowly

can be increased by up to 0.5%, provided the fragrances dry and are therefore rejected by the consumer

will not be affected by this, but will be ok.

Avoid larger amounts of bisulfite, because they differ Although each constituent has the properties of the

otherwise noticeable when using the soap, influencing others, certain rules may apply.

especially if the bars of soap are made with a fine artisan skill in the manufacture

Fragrance are perfumed. Amounts above 1% sodium - optimal detergent bars to facilitate. That

Metabisulfite seems to attack many fragrances 15 Monoglyceride sulfate gives the detergent bar

and to change and should therefore only need good foam properties and shows in itself a good one

if there are no fragrances or lime soap dispersibility, but this is the case with the

when a change in odor is unobjectionable, the quantities applied are usually insufficient

is. Although amounts of sodium bisulfite in excess of 0.25% are effective. The N- (aeyl) -aminoalkanesulfonates

Does not affect color fastness, the 20 seats force excellent lime soap dispersion properties

Side effects usually add to this, no more bisulfite shafts and good foaming power. The alkylaryl

to use as necessary for color stabilization sulfonates improve foaming in hard water

is. It has been found that the most beneficial amount and give the detergent bar the desired one

is between 0.10 and 0.15%. Lubricity. The starch improves foaming

The combination of synthetic washing raw materials and at the same time reduces the feeling of sickness substances and soap in the claimed quantities - absorption of moisture and softening Conditions together with the right humidity - high humidity. According to the invention, the verkeitsgehalt and the specified maximum amount of applied soap produced in hard, calcium and Sodium sulfate and chloride of water containing less than 7% magnesium ions is essential and preferably less than 6% results in 30 fewer alkaline earth precipitations than soap with ge blend, which is essentially in the lower degree of saturation and higher content of soap bars usual way can be processed. The er fatty acids with 16 and 18 carbon atoms, such as inventive detergent bars have from tallow soap. Because of these properties it is possible drawn performance properties and are in many ways a detergent within the claimed limits superior to the well-known soaps, 35 pieces with a relatively low content of

To produce the auxiliaries that can be used according to the invention from synthetic detergent raw materials and yet

usually talk about the production of a foam and dispersion power to achieve that

Fine soaps used, such as. B. Fragrances, Pig- so far only with products of higher content

elements, dyes, brighteners, bactericides, sequencing synthetic detergent raw materials could be achieved,

Surfactants, Antioxidants, Softeners 40 The soaps of the invention also produce a

and the like. In particular, antibacterial foams become larger in amount and form richer more quickly

halogenated oxybenzene derivatives, preferably 3,5-di- and creamier foam than known soaps in

chlorosalicyl-S '^' - dichloroanilide, used. Detergent pieces that meet the specified synthetic

The constituents of the mixtures according to the invention contain table cleaning agents. With increasing have very different, sometimes conflicting 45 moisture contents, the soap is softer, lighter Properties. However, it has been found that the soluble and smears more easily while below one Effect of the certain moisture content combined into a detergent bar makes the mixture difficult Substances of the total effect of the individual components or not to be rolled and pressed at all. Is this is clearly superior. So show the sodium sulfate and sodium chloride according to the invention in greater than Detergent bars, for their excellent foam, present in the specified quantities, treads easily and cleaning properties do not exhibit excessive sump crystallization that detergent bar gets f ung, although an additive to improve others at times a grainy texture to the consumer Properties of sufficient amounts of alkylarylsulfonate interferes. Although the alkali-resistant starch is essentially and sodium fatty acid glyceride sulfate are commonly used to replace the alkylbenzenesulfonate Bars of soap cause smearing or bogging. 55, are already practicing amounts of 2% strength If the alkylarylsulfonate is replaced by starch, a beneficial effect is evident. While the strength the foam formation and the Kalkseifendispergierungs- preferably used in about the same amount the ability of the bar of soap is not noticeably affected, as stated for the alkylarylsulfonate, Although starch per se is not foamy, an addition of 2% is also acceptable. The Anmittel or as a dispersant for lime soaps 60 essence of starch allows the addition to be seen is. The use of starch and lower amounts of moisture in the detergent bar, see above also supports the keeping of the swamp slope low and that still with up to 16% humidity after the decreases the moisture absorption and the ordinary manufacturing process one enough Softening is obtained when stored under particularly moist hard pieces. The preferred starch conditions. The detergent content according to the invention of 3 to 7% is slightly below the 4 to Pieces show, regardless of whether they are starch or alkyl 8%, which are considered to be sodium dodecylbenzenesulfonate aryl sulfonate contain, an excellent lime - have proven particularly beneficial. Compliance Soap dispersibility in hard water, regardless of the claimed limits, is essential because it is noticeable

7 8

Deviations from the specified amounts for 5 minutes on a shaker, shaking moderately

lead to inferior products. telt and then left to stand for 5 minutes so that the

The calcium and magnesium soaps which are insoluble in bisulfite according to the invention could aggregate into compounds, preferably sodium metabisulfite. Then the solution was filtered through a targeted stabilizing effect is generally applied to washing 5 glass wool and filter paper. From the filtrate middle pieces of soap, synthetic detergent raw materials, 50 ecm with distilled water and starch can now be used. So retained by rolling 100 ecm thinned. This solution, which was called test and extrusion detergent pieces from solution, was now titrated after the addition of soaps of higher molecular weight fatty acids, soap-free, not 5 drops of methyl purple as an indicator with 0.008 cation-active synthetic organic washing crude hydrochloric acid until it turned purple,
substances, starch and 0.05 to 0.5% inorganic The blind tests were carried out in the same way only bisulfite a brighter and clearer color than with distilled water and the original, bisulfite-free products. initial total amount of soap determined.

According to the following principles, the person skilled in the art can The content of undispersed alkaline earth soap

Easily suitable mixing ratios are determined within the 15 following formula:

Select the claimed limit. With a high salary. .

of N- (acyl) -aminoalkanesurfonate, the amount of Jw- (p --_ y) _ _ _percent agglomerated and removed fatty acid glyceride sulfate can be reduced to such an extent that -β total amount of soap.
in connection with the other constituents a good B = cubic centimeter used 0.008 nfoaming product is obtained. If, on the other hand, the maximum amount of fatty acid glyceride sulphate is used in the titration of the blind,

applies, less amide is needed to achieve a consumed F - cubic centimeter consumed 0.008 n-

Sufficient lime soap dispersion is necessary. The N- (acyl) - 'HCl in the titration of the experimental

aminoalkanesulfonate is the more effective dispersing solution,

agent for lime soaps and fatty acid glyceride 25

sulfate the better foam concentrate. A reduction In all cases, two parallel tests of the total content of synthetic detergent raw materials were always carried out. The parallel tests allowed the use of larger amounts of low average values,
Molecular soap (made from fatty acids with 12 to 14 carbons - this method was used to target their alkaline earth atoms). An increase in the content of synthetic soap dispersibility is being investigated: the sodium table detergent raw materials allows more high molar N- (acyl) -N-methyltauride to be used from tallow fatty acids, the nacular soap or starch to reduce the hardness trium-N- (acyl) - to increase aminomethanesulfonate from coconut oil fat of the soap bar and to exclude too high a solubility · as well as coconut oil fatty acid monoglyceride. The synthetic washing crude sulfate and sodium dodecylbenzenesulfonate.
Substances and soaps are preferably sodium compounds. The results are shown in the following table, but potassium compounds can also be used:

The amounts of soda ^{_{undKaliseifeundsynthetischen:}}

Washing raw materials must be coordinated so that ^;

a detergent bar with sufficient hardness and dispersant

Solubility is obtained. A person skilled in the art can use the 40

Composition readily ^{appropriately::::}

emstelleiiu, ". ,, .. Sodium-N-iacyiyN-methyltauride from

The detergent bars according to the invention can contain tallow fatty acids

according to the C customary in the manufacture of fine soaps

Sodium N-Cacylamine

Process with only minor, those skilled in the art without 45 _{nät from} coconut oil fatty acids

further Maren amendments are made. Coconut oil fatty acid monoglyceride sulfate

5i. ^m . Demonstrate the superior Kalkseifendisper- _Na t _r i _U mdodecylbenzolsulfonat

^e ? ^ahl ? ^ince u ^e i ^ndun S ^s S? ^m _o ^ate . _control solution used (blind test) .....
alkanesulfonate with 2 or 3 coals

Ca-Mg-

Soap-

precipitation

0 /

55

43

80 to 90

• T- (Acyl) -aminoarkansulfonate with 2 or 3 carbon- "" "" "" "" ^ ^^ «., W. ^^,

The following comparative 50 atoms in the alkane residue were found in the table above that the

experiments carried out: according to the invention preferably used N- (acyl) -N-me-

A solution of 1.275 g of soap (sodium soap made from thyltauride, the comparison products in its kalk-80 parts of tallow and 20 parts of coconut oil) in 1000 ecm of soap dispersibility (0.225 g of the N- (acyl) -aminomethanesuh ° to be tested was also used for the very similarly distilled water onat!) was added unvorher-Kalkseifendispergierungsmittel so that the 55 is extraordinarily superior.
Dispersant 15% of the active detergents present. The following examples illustrate the invention. Mattered fabrics. The solution was reduced to 29 ^° C. All quantitative data are weight data,
refrigerated and stand at room temperature for 24 hours. .
calmly. It was then heated ^{to 29 ° C. again.} Example!
This soap-dispersant solution was referred to as stock 60 sodium monoglyceride sulfate from hylösung. third coconut oil fatty acids 15%

To carry out the experiments, 50 ml of sodium dodecylbenzenesulfonate,

Stock solution in a flask with 50 ml of water weighing: sodium tetrapropylene benzene

added, which, based on the carbonates, ins- zolsulfonat 5%

a total of 0.03 g calcium and magnesium ions in the 65 sodium - N - (acyl) - N - methyltauride

Weight ratio 3: 2 and a hardness of 16 and 18 carbon atoms in the acyl

33.6 ° dH, so that the hardness of the total remaining 5%

mixture was 16.8 ° dH. The flasks were now soda soap (coconut oil to sebum 1: 1) 55%

Sodium sulfate ... .......... 1.4%

Sodium chloride 1 _S 6%

Other ingredients (bactericides, fragrances, pigments, opacifiers, Dye solution, free, unreacted and ether-soluble oils, fatty acids etc ..... 5%

100% -

The synthetic detergent raw materials and the soap (with attached sodium salts and ether-soluble Ingredients) are mixed, dried in a film dryer to the specified moisture content, mixed with the desired auxiliaries in a stirrer, the mixture to homogeneity piled, pressed in a vacuum extruder, cut and cut into pieces like in soap production pressed.

The detergent bars obtained were tested for numerous properties necessary for usability of the product in hard and soft water are essential, in particular foaming and foam resistance, Suitability for hand washing, chalk soap dispersibility, drying properties, Sump formation (greasiness) and external appearance. The detergent bars produced practically no undispersed precipitates, gave an abundant, creamy foam and dried faster than ordinary soap and could be said to be excellent.

Example 2

Sodium fatty acid glyceride sulfate of higher molecular weight fatty acids 11%

Sodium Dodecylbenzenesulfonate 6%

Soda soap 59%

Total amount of sodium sulfate and

Sodium chloride 2.8%

Water 11%

Other components 5.2%

Sodium-N- (acyl) -N-methyltauride .. 5%

100%

The soda soap contained 71% saturated fatty acids, of which 36% had 12 to 14 carbon atoms and 58% Contained 16 to 18 carbon atoms.

Soap bars were produced by mixing, piling, extrusion and pressing, some of which Amounts of auxiliaries and water were added so that products with good use and processing properties were created. Tests have shown that the Detergent bars were improved equivalents for fine soap.

Example 3

Sodium fatty acid monoglyceride sulfate from hydrogenated coconut oil

Sodium N-acyl-N-methyltauride with 16 and 18 carbon atoms in the acyl group

Soda soap (coconut oil to sebum 1: 1)

Alkali-resistant starch

Sodium sulfate

Sodium chloride

water

Other components

15%

5% 55.4%

57o 0.9%

lJ7o 12%

5%

The alkali-resistant starch was from Stein, Hall & Co., Inc., New York, N.Y. 90% active strength and passed a sieve DIN 0.045. It was made from a corn starch containing about 75% amylopectin obtained, which was resistant to alkali. It turned into a damp flour crushed, freed from protein and ash components by washing, according to the method of S c h ο c h and Jensen tested for alkali resistance and showed an alkali number of 4.5, that is, good alkali resistance. Alkali-resistant, water-soluble Starch should have an alkali number below 10, preferably below 5, and low in protein to have.

The synthetic detergent raw materials, the starch and the soap are (together with attached sodium salts and ether-soluble components) in a stirrer to an aqueous dispersion or a Mashed the porridge. You can use small amounts of alcohol

(Ethanol, isopropanol) can be added to avoid premature gelling of the starch and to achieve an easily pumpable mixture. After drying in a plate film dryer to the specified moisture content, the chips obtained are mixed with the necessary additives in a soap mixer, piled to homogeneity, pressed in a vacuum extruder, cut and pressed into detergent pieces.
The detergent pieces were subjected to the same samples as in Example 1 and, in addition, the abrasion resistance and the moisture absorption were measured. A copious creamy foam was achieved. The bars dried as quickly as straight soap bars and produced virtually no undispersed precipitates. The bars according to the invention showed excellent properties and they absorbed even less moisture from the air than the products according to Examples 1 and 2. The detergent bars remained harder when stored moist and took only 60% of the moisture even at 88% humidity and 9 days of storage like the pieces of Example 1. These detergent pieces smeared even less than the pieces of Examples 1 and 2. This was determined by tests in which the pieces were partially immersed in water for several hours, the softened components of the surface were wiped off and the weight losses determined became.

Example 4

Sodium fatty acid monoglyceride sulfate.
Sodium - N - Acyl - N - methyltauride

(Igepon TE-42)

Soda soap (coconut oil to sebum 1: 1)

Alkali-resistant starch

Total amount of sodium sulfate and

Sodium chloride

water

Other components

15%

5%

55%

5%

3%
12%

5%

100%

100%

Example 5

Sodium coconut monoglyceride mono-

sulfate 15%

Sodium N- (acyl) - N -methyltauride 5%
high molecular weight sodium n-alkyl sulfonate 5%

509 630382

ί 198

507ο

Soda soap (coconut oil to sebum 1: 1) Total amount of sodium sulfate and

Sodium chloride 3%

Alkali-resistant starch 5%

Water 12%

Other ingredients 5%

100%

The pieces according to Examples 4 and 5 were produced by dry mixing the ingredients, mixed with the necessary amount of water, rolled, extruded and pressed. The pieces received were of good quality and proved to be very good in the test methods described Bath and face soap. Instead of dry mixing the ingredients, these pieces can but can also be prepared by the method according to Example 3. There is no fear of that the surface remains rough due to insufficiently dispersed starch.

Example 6

Soda soap (coconut oil to sebum 1: 1)

Sodium monoglyceride monosulfate from hydrogenated coconut oil fatty acids.

Sodium -N - (acyl) - N - methyltauride from tallow fatty acids

Alkali-resistant starch

Sodium metabisulfite

3,5 - dichlorosalicyl - 3 ', 4' - dichloroanilide (deodoriser)

Fragrance (mainly amyl salicylate, lavender and rosewood)

Antioxidant (cresol derivative)

Titanium dioxide (pigment)

dye

water

Sodium sulfate

Sodium chloride

Remainder (free oil and ether-soluble components) ............ "■ :.

56% 15%

5% 5.6% 0.12%

0.2%

1.0% 0.1%

0.6%. 0.01% 11.9% 0.9% 1.7%

1.87%

.; ■■; ■■ 100%

• The monoglyceride sulfate is in the agitator as Aqueous-alcoholic solution with about 30% dye was introduced, the tauride paste, then the alkali-resistant one Starch and possibly additional alcohol and finally the soap and the cresol antioxidant added. The finished mixture contains approximately 50% solids, however the water- and / or alcohol content can be adjusted so that it is easier to pump and the gelling of the starch is delayed. The temperature is maintained at around 55 ° C, but may vary depending on the circumstances be changed.

The homogeneous slurry from the mixer is dried in a plate film dryer, with the starch gels and removes the alcohol and most of the moisture. The dried mixture in Chip form is mixed with sodium metabisulphite, dye, bactericide, fragrance, piled on it, extruded and then pressed into pieces. The bars are easy to make and look pure soap bars similar. They foam very well, do not develop undispersed lime soap deposits in hard water, do not become swampy, do not swell in an undesirable way and take on high humidity also does not contain excessive amounts of moisture.

After accelerated aging tests at high temperature and ordinary aging tests Under storage conditions, this detergent piece retains its original color and shows less or no yellowish discoloration like similar products without the addition of inorganic bisulfite.

The alkali-resistant starch according to Example 6 can also be replaced by corn starch (70 to 76% amylopectin content) replace, being an excellent

ίο Persistence and white color can be achieved. Although these pieces are not as white as those made with alkali-resistant starch, so they are but it can be used for many purposes and is still whiter than comparison pieces without Sodium metabisulfite. The greater tendency of these pieces to yellow with aging can be in part due to increase of the sodium metabisulphite content to 0.25% can be avoided without any noticeable effect occurs on the bar of soap, its own smell or the fragrance.

Claims (2)

Patent claims: 1. detergent bar with a content of alkali soap of higher fatty acids, fatty acid monoglyceride sulfate, alkylarylsulfonate and N- (acyl) aminoalkanesulfonate, characterized by
A. a content of N- (acyl) -aminoalkanesulfonate of the general formula R-CO-N- (CH ₂ U-SO ₃ -Me (CH ₂ ) ?! - H where R. is an alkyl radical having 11 to 17 carbon atoms and Me is an alkali metal and m = 2 or 3, η = 0.1 or 2 and m and η taken together is 2, 3 or 4 and preferably 3, and
a composition a) 45 to 65%, preferably 50 to 60%, of soluble alkali soap, its fatty acid residues are over 65% saturated and over 75% fatty acid residues with 12 to 18 carbon atoms and of these 25 to 60% fatty acid residues with 12 to 14 carbon atoms and 75 to 40% fatty acid residues with 16 to Contains 18 carbon atoms, "'..." b) 8 to 20%, preferably 10 to 17%, essentially saturated "alkali fatty acid monoglyceride sulfate, 3 to 10% alkali alkylarylsulfonate with 10 up to 18 carbon atoms in the alkyl radical or 2 to 10%, preferably 3 to 7%, alkali-resistant starch, preferably with one Alkali number below 5, 3 to 10%, preferably 4 to 8%, alkali - N - (acyl) - aminoalkanesulfonate according to A, e) up to 7%, preferably up to 5% alkali metal chloride and / or alkali metal sulfate and
6 to 16%, preferably 8 to 14% water. 2. detergent bar according to claim 1, characterized in that it still contains 0.05 to 0.5% Bisulfite compound, preferably sodium metabisulfite, are included. 35 40 B. c) d) f) Considered publications:
U.S. Patent No. 2,749,315.