JPS61157592A - Bentonite-containing cloth softening heavy liquid detergent - 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 Field of Industrial Application: This invention relates to heavy duty liquid detergent compositions for fabric softening. More particularly, it relates to such liquid detergents consisting of the described synthetic organic detergent and builder components in an aqueous medium together with swellable bentonite and low molecular weight polyacrylates. The products of the invention have an improved stable viscosity or consistency even after one month of storage;
It is easily flushable and is a good laundry detergent and fabric softener.

Prior Art: Heavy duty liquid detergents useful for machine laundering of laundry are commercially available and have been described in various patents and literature. Bentonite has been included in granular detergent compositions as a fabric softener and is utilized as a thickening agent in aqueous compositions, which keeps insoluble particulate materials, such as abrasives, suspended in the liquid medium. can help. In U.S. Pat. No. 4,469,605 (Ramachandran and Grand), bentonite was successfully used in the production of what was then considered to be an acceptable stable fabric softening heavy liquid detergent. Among them, bentonite was a fabric softening component. The detergent compositions described in that patent have a stable and relatively constant viscosity on storage when made in the laboratory and pilot plant, but often thicken on storage when made in production facilities. That's what I found out here.

Means for solving the problem: According to the invention, from 1.15 to 1.35y at room temperature
Density ranging from /-, pH ranging from 9.5 to 11.

and a viscosity in the range of 1.000 to 5.000 centipoise that does not increase by more than 5.000 or 6.000 centipoise upon 30 days of static storage at room temperature. 5 to 15% higher alkyl with 10 to 16 carbon atoms
alkali metal salts of straight-chain or branched higher alkylbenzenesulfonic acids, where the alkyl is of 10 to 16 carbon atoms and the polyethoxy is of 2 to 11 ethylene oxide groups, 1, 5 to 5 % alkyl polyethoxy sulfate alkyl metal salt, 5 to 25% water soluble builder salt, 5 to 20% swellable bentonite), 0
．． 05 to 0.5% molecular weight is 1.000 to 5.00
The liquid detergent described in 〇 consisting of a water-soluble polyacrylate in the range of 0% and 40% to 75% water is a commercially acceptable heavy-duty laundry detergent and is effective against both oily and particulate soils. It is possible to satisfactorily clean laundry containing laundry items and at the same time deposit sufficient bentonite on such laundry items to fully soften them. The compositions described may also be used to pre-treat heavily soiled areas such as collars and sleeves of articles to be laundered, in which they are applied directly to the soiled areas with some rubbing abrasion. The presence of bentonite in the liquid is believed to be useful in mechanically assisting in loosening and/or removing soils.

The synthetic anionic organic detergent mixture present in the liquid detergent of the present invention is a mixture of linear or branched (preferably linear) higher alkylbenzene sulfonates with totalylbolyethoxy sulfates. Other water-bathable linear higher alkylbenzene sulfonates, such as potassium salts and, where appropriate, ammonium salts and/or alkanol ammonium salts may also be present in the formulations of the invention. However, it has been discovered that the sodium salt is highly preferred and the same is true for alkyl polyethoxy sulfate detergent ingredients. The alkylbenzene sulfonate is one in which the higher alkyl has 12 to 16 carbon atoms, preferably 12 to 15 carbon atoms, more preferably 12 to 13 carbon atoms, and most preferably 13 carbon atoms. Alkyl polyethoxy sulfates, also called sulfated polyethoxylated higher linear alcohols or sulfated condensation products of higher aliphatic alcohols and ethylene oxide or polyethylene glycol, have 10 to 16 alkyl atoms, Preferably 12 to 15 carbon atoms, such as 13 carbon atoms, and 2
It may contain from 5 to 11 ethylene oxide groups, preferably 2 to 7, more preferably 3 to 5, and most preferably 3 or about 3 ethylene oxide groups. In appropriate circumstances, other anionic detergents such as fatty alcohol sulfates, paraffin sulfonates, olefin sulfates*:yRJL monoglyceride sulfates, sarcosinates, sulfosuccinates and similar functional detergents may be used, for example as their sodium salts, sometimes may be present in partial substitution of the aforementioned synthetic organic detergents, but usually in addition to such detergents, if present. Other detergents of this type are usually sulfated or sulfonated products (usually as sodium salts), long-chain (8 to 20 carbon atoms) straight-chain or aliphatic alkyl Contains groups. In addition to such other or supplementary anionic synthetic organic detergents, non-ionic and amphoteric substances may also be present, such as Neodol, sold by the Shell Chemical Company; It is a condensation product of ethylene oxide and higher aliphatic alcohol, for example about 1
Neodol 23-6.5 is a condensation product of a higher aliphatic alcohol of 2 to 13 carbon atoms with about 6.5 moles of ethylene oxide. Examples of the various types of detergents and 'S's mentioned above can be found in Text 5 surface Acti.
ve Aggnts+ 2 volumes (by Schwartz, Berry and Birch, Interscience Publishers, 1958) and a series of McCu-tchgon's
Dgterggnta and Etnuls
3, for example, published in 1969, the descriptions of which are hereby incorporated by reference.

The combination of builder salts of the present invention has been found to satisfactorily improve the cleaning properties of mixtures of synthetic anionic organic detergents, creating the desired pHt in liquid detergents and wash water, and in the washing process and The softening step VC-7, which works synergistically with detergent and bentonite, is a mixture with sodium tripolyphosphate. In the case of filtration, incomplete mesophase tripolyphosphate is also used, but the phosphate usually used is pentasodium tripolyphosphate Nα5P.
It can be considered that it is 30+o. Of course, in some cases, such as when potassium salts of other substances are present, ionic interconversion in the aqueous medium may result in other salts other than sodium tripolyphosphate being present, but in this specification For this purpose, sodium tripolyphosphate as the pentasodium salt is considered to be the tripolyphosphate salt used, which is the material that is normally charged to the mixer to make the liquid detergent of the present invention.

Other preferred builder salts which may be used in place of or in addition to sodium tripolyphosphate 2 and sodium carbonate are sodium citrate and potassium citrate, and sodium nitrilotriacetate (CNTA) t-
include. Corresponding potassium salts may also be used in partial substitution of these other builder salts. Of course, various mixtures of the water-soluble builder salts mentioned above can be used. The described tripolyphosphorus phosphate-carbonate mixtures have been found to be most preferred, although other builders and mixtures thereof are also operable. In addition, as a supplement to other builders,
It may be used in addition to the above-mentioned builder ratios described below. Thus, other phosphates, e.g.
IJum or tetrapotassium pyrophosphate, sodium bicarbonate, sodium sesquicarbonate, sodium gluconate, borax, sodium silicate, and sodium sesquisilicate may be used. Also useful are the polyacetal carboxylate builders described in U.S. Pat. No. 4,144.226 and other related Monsanto Company patents, which are available under the Builder U trademark. Among the water-insoluble builders that can be used are zeolites such as Zeolite A), usually in the form of crystalline hydrate, although amorphous zeolites are also useful. One feature of the present invention is that sodium silicates are not required to make effective heavy duty detergent-softener compositions, and therefore such silicates are generally omitted from the formulations of the present invention and their advantages. Properties that are not unique are therefore avoided.

For example, silicates tend to react with other ingredients of liquid detergents, such as zeolites, sodium carbonate, or other builders, to form insoluble materials that tend to adhere to the laundry and thus adversely affect its desired light color. can avoid. The absence of silicates in the detergent medium prevents the formation of insoluble siliceous decomposition products of the silicates, which become visible in liquid detergents or washed away in the laundry. If deposited on the surface, it tends to have an adverse effect on the appearance of liquid detergents and laundry.

The bentonite used is a colloidal clay (aluminum silicate) containing montmorillonite If.

The type of bentonite most useful in making the base speeds of this invention is that known as sodium montmorillonite (also known as Wyoming or Western bentonite), which is usually light to cream colored, or slightly tan in color. It is a powder that cannot be detected by hand and can form a strongly thixotropic, sticky colloidal suspension in water. In many cases, potassium bentonite or mixed sodium-potassium bentonite may be used instead. In water, the swelling capacity of this type of clay is usually from 3 to 15 or 20 m/, 9, preferably from 7 to 1's, l/
Q /7'l Q1?51E3 ffunn fist (n company FM L'++ width 16% concentration is usually 3 to 30
centipoise, preferably in the range of 8 to 30 centipoise.

A preferred swellable bentonite of this type is sold under the trademark Mineral Colloids as Industrial Bentonite by the Benton Clay Company, a major supplier of clay to the industry. These materials are the same as those previously sold under the trademark Thixo Gel, but are selectively mined and beneficent, and those considered most useful are mineral colloids, such as /%101. , corresponding to Thixo Gel/i61.2.3 and 4. These substances have a pH ranging from 8 to 9.4 (6% concentration in water), a maximum free water content of 4% to 8% (before addition to the liquid detergent medium) and a specific gravity of approximately 2.6. . For finely ground grades of these materials, at least about 85% of the bentonite passes through the 200 mesh sieve, preferably all of the bentonite passes through the 200 mesh sieve, and most preferably all of it passes through the 200 mesh sieve. Therefore, it may be considered that the equivalent diameter of the bentonite is less than 74 microns, more preferably approximately 44 microns or less. A useful commercial source of finely divided bentonite of satisfactory color is American Colloid Company, and the available bentonite, sold as AEG 325 bentonite, is believed to be compatible with the mineral colloids and thixo gels mentioned above. Although beneficent Wyoming bentonite is preferred as a component of the liquid detergent compositions of the present invention, other bentonites are useful, including synthetic bentonites (made from bentonites with exchangeable calcium and/or magnesium by sodium carbonate treatment). and is contemplated for inclusion in the compositions of the present invention. A representative chemical analysis of some bentonites useful in making the liquid detergents of the present invention shows that they range from 64.8 to 73.
．． 0% 5i02.14 to 18% At203.1.
Mac from 6 to 2.7%, Ca from 1.3 to 3.1%
b12.3 to 3.4% Fe2O2,0,8 to 2.
It shows that it contains 8% Na2O and O4 to 7.0% Of.

The presence of bentonite gold phase as a fabric softener in the liquid detergent compositions of the present invention means that the bentonite does not have to be dried, as in a spray dryer, and is therefore susceptible to immobilization due to over-drying of its component plates. This means that the danger of losing the softening power of the bentonite based on it is avoided. It is also not necessary to have the detergent compositions of the present invention formulated to promote rapid disintegration of the detergent peas in the wash water to liberate all bentonite particles, since the bentonite particles have more time to disintegrate in the liquid detergent. This is because it does not aggregate into a hard mass that requires

The polyacrylate used is a low molecular weight polyacrylic acid (IJ) whose molecular weight is usually about 1.000.
From 5,000. Preferably from 1.000 to 3.00
0, most preferably L500 to 2,500, for example about 2,000. Other polyacrylates, including other alkali metal polyacrylates, may also be substituted in some or all of the described sodium polyacrylates, but such substitutions should, where permissible, be kept in small proportions. Preferably, the polyacrylate used is sodium polyacrylate. Such materials are available from Alco Chemical Corporation under the name Alcospers. Sodium polyacrylate is available as a clear amber liquid or powder and is completely soluble in water.

The solution has a solids content of about 25 to 40%, e.g.
%, and the pH of those solutions or the pH of a 30% aqueous solution of the powder ranges from about 7.0 to 9.5. Among these products, a preferred one is currently Full: Real Cospers 104. by I. Chemical Corporation.
107.107D, 109>! Alcosparz 107D, a 100% solid powder, is the most preferred.
7. 30% water bath can be used in place of 30% water bath, and there is almost no difference in the results. Both are sodium polyacrylate, which is dissolved in water at a concentration of 30% and is liquid (10%).
7) at a pH in the range of 8.5 to 9.5, powder (1
07D) (7) pH ranges from 7.0 to 1'l.

The only other necessary ingredient of the liquid detergent of the present invention is water. Normally, the hardness of such water is about 300 as CaCO3.
p-p-rattan or less, preferably 150 p-p-1 or less. Although tap water with hardness below 50 or 100 p.p., poison, is often nearly satisfactory, it is often desirable to use deionized water. Although harder water can also be used in making the detergents of the present invention, softer water produces interfering substances that may adversely affect the appearance of the liquid detergent or may deposit interferingly on the laundry during washing. Not likely.

Various auxiliaries, both aesthetic and functional, can be present in liquid detergents, such as fluorescent brighteners, fragrances and colorants. Fluorescent brighteners have the trade name Chikupar, for example 58
Cotton and nylon brighteners include known stilbene derivatives such as those sold as M. The fragrances used are usually essential oils, esters, aldehydes and/-! !
or alcohol, all of which are mentioned in the fragrance field. Colorants include dyes and various types of water-dispersible pigments, including ultramarine blue. Due to the lightening effect due to the presence of bentonite, the color of the product often takes on attractive pastel hues. It may be used to make the color of titanium dioxide products pale white or even white. Inorganic filler salts such as sodium sulfate and sodium chloride may be present, anti-deposition agents such as sodium carboxymethyl cellulose, enzymes, bleaches, fungicides, fungicides, antifoam agents such as silicones,
So are antifouling agents such as copolyesters, preservatives such as formalin, foam stabilizers such as lauryl myristyl jetanolamide, and cosolvents such as ethanol. Usually the individual proportion of such auxiliaries is 3%
sometimes less than 1%, sometimes even less than 0.5%, except for fillers and solvents and additional detergents and builders, for which the proportion may sometimes be as high as 10%. The total proportion of auxiliaries including unspecified synthetic detergents and builders is not more than 20% of the product, preferably not more than 10%, more preferably not more than 5%. Of course, the auxiliaries used do not interfere with the washing and softening action of the liquid detergent and do not promote instability of the product on standing. Also, they do not cause the formation of interfering deposits on the laundry.

q! in the liquid detergent of the present invention! The r-species component composition is 5 to 1
5%, preferably 6 to 12%, more preferably 8 to 10%, most preferably about 9% sodium linear higher alkylbenzene sulfonate; 1.5 to 5%, preferably 1.5 to 3% , more preferably from 1.7 to 2.7
%, most preferably about 2% sodium alkyl polyethoxy sulfate; 5 to 25%, preferably 9 to 22%;
More preferably, about 12 to 19% builder salt; 5 to 20%, preferably 8 to 15%, more preferably 10 to 14%, most preferably about 12% swellable bentonite; and 40 to 75% swellable bentonite; %, preferably 50 to 70%, more preferably 55 to 70%, most preferably about 60% water.

For builder salts, when they are sodium tripolyphosphate and sodium carbonate, their proportions are usually from 7 to 15%, preferably from 9 to 13%, more preferably about 11% tripolyphosphate, and 2 from 7%, preferably from 3 to 6%, more preferably about 4%
The ratio of sodium carbonate to tripolyphosphate and carbonate ranges from 2:1 to 6=1.

Liquid detergents can be made by suitably mixing all of their various components, preferably bentonite is added to a premix of the bulk of water, tripolyphosphate, carbonate, CMC.
and added together with anionic detergents. For example, polyphosphates and carbonates are mixed and scaled with a large portion of water, usually in finely divided form fine enough to pass through a 4160 sieve, and then CMC and anionic detergent are mixed. , then the bentonite, polyacrylate, and the remainder of the formulation ingredients are mixed in any suitable order.

Add the tree of Azusa 9Tau to the left 1 monument of πr Minato Fuseka and dilute the thickened liquid to the desired consistency.

Experience has shown that the desired proportion of water, which is reserved and mixed at the end of the manufacturing process, is usually between 5 and 20% of the final liquid detergent, for example about 10% thereof. During the mixing of the various ingredients with the aqueous medium, and especially when adding water (bentonite) and mixing the remaining water, it is essential to keep the mixture in motion, such as by continuing to mix or stir it. be. Preferably, the mixer is never stopped and the process is continuous, usually requiring about 3 to 30 minutes per batch. Although the water may be heated to facilitate the dissolution of the various product ingredients therein and to facilitate the dispersion of the bentonite, this is not necessary and room temperature water, e.g.
Water at a temperature in the range of 0.degree. C. may be used, for example from 20.degree. C. to 25.degree.

The viscosity of the liquid detergent of the present invention immediately after completion of the manufacturing process is typically in the range of about 1.000 to 2.000 centipoise;
For example, about 1,500 centipoise.

Liquid detergents are considered to be packaged in relatively narrow-mouthed glass or plastic bottles for dispensing and should flow out before and after normal aging. When omitted from polyacrylate formulations, commercially produced liquid detergents initially have a work viscosity and become more viscous upon standing, so that after about a month at room temperature, their viscosity ranges from 3.000 centipoise to 18. It becomes a trap so that it increases to more than 000 centipoise. At 18,000 centipoise, the liquid detergent is too viscous to flow satisfactorily and the consumer is required to shake or stir to reduce the viscosity enough to allow it to flow from the bottle. Become. However, such thickening properties are undesirable. The preferred viscosity of the liquid detergent of the present invention is about 4.000±i
,000 centipoise, and viscosities similar to these have been found to be consumer-preferred viscosities. Using the polyacrylate components and formulations of the present invention, as illustrated in Example 1, after storage for about one month, the viscosity of
It is found that the increase to 0 centipoise (4j050 centipoise after 28 days) does not result in a significant subsequent viscosity increase on further storage. The stated viscosity is /16 for viscosities below 2.000 centipoise.
．． 2 spindles /163 spindles for viscosities in the range 12,000 to 9,000 centipoises and /163 spindles for viscosities greater than 9,000 centipoises.
Brookfield LVT using I64 spindle
Measure by viscometer. All viscosities are 12 r-p-
Measurements were made at 25°C and 25°C.

The following examples fully illustrate, but do not limit, the invention. In this specification, including the working examples and claims, all parts are by weight and all temperatures are in degrees Celsius, unless otherwise indicated.

Pentasodium tripolyphosphate 116° Sodium carbonate (anhydrous) 4.0 Sodium carboxymethyl 0.2 Cellulose titanium dioxide 0.5 Formalin 0.2 Fragrance
0.4 water
60.7055i o o,.

Approximately 84% of the water formulation is added to a suitable mixer, such as a vertical cylindrical tank equipped with heating and cooling means and connected to a discharge pump, to prepare the polyphosphate and carbonate (Al
Particle size that passes through a sieve of
f and then mix in the anionic detergent, then mix in the other ingredients in the appropriate order. The remainder of the water is added to dilute the mixture, the flavor is then added with stirring, and the product can be easily pumped out of the mixer into narrow-necked bottles for end use; Useful as a container. During the mixing operation, which takes about 9 minutes in total, the added substances and the final product are at a temperature of about 20°C. In some cases, to facilitate rapid dissolution and rapid dispensing of the ingredients, the temperature of the water and other ingredients charged may range from 40°C to 50°C such that the final product temperature is about 30°C to 40°C. ℃
The mixing time may be increased to approximately 5 minutes or 6 minutes.
shortened to minutes.

The resulting liquid detergent (at room temperature) has a viscosity of about 1,550 centipoise and flows satisfactorily from a plastic detergent tube with a discharge opening of about 2.5 crIL. It has a pHt of approximately 10.5. This liquid detergent is used to wash a mixed load of contaminated laundry, which includes swatches contaminated with cotton and polyester/cotton particulate soils and sebum soils. Add liquid detergent to the tub of a standard washing machine and use about half a cup of liquid detergent for every wash. (Liquid detergent concentration in washing water should be approximately 0.18%). The wash water temperature was 21° C. (to test the product's "cold" water washing ability) and the water had a mixed calcium-magnesium hardness of about 150 ppm as CaCO5. After washing the laundry and test swatches, they are either "line-dried" or machine-dried (in a conventional laundry dryer).

The same procedure as above is repeated for the control detergent formulation, but the sodium polyacrylate is omitted and replaced with water.

Both the experimental composition (containing sodium polyacrylate) and the control composition are excellent fabric softening detergents; however, the experimental product lacks one important property: satisfactory viscosity during storage. It has excellent maintenance ability. For example, after 5 days, the viscosity of the experimental product is 2.5
80 centipoise, while the viscosity of the reference standard was 9
.
and 14,500 centipoise, and after 28 days, 4,050 and 18.500 centipoise, respectively. At 4.050 centipoise, the product can still be poured from the bottle, but at 18.500 centipoise, it is not pourable and must be shaken or stirred to disperse. 28 years after production
After a few days, the viscosity of the experimental formulation did not increase significantly, and the viscosity of the control standard was of no value since the product would not be commercially available above 18,000 centipoise.

From this experiment, it was found that polyacrylic acid (polyacrylic acid, which is eaten in very small quantities)
It is clear that the presence of Jum helps stabilize the storage viscosity of the described detergent compositions, an effect not previously recognized in the art.

This experimental liquid detergent has an attractive bright blue homogeneous appearance and does not settle into layers of various substances during storage.

In addition to being useful as mechanical laundry detergents, the products of this invention can be used as fluids for hand-washing laundry and pre-treating heavily soiled areas of laundry.

In hand-washing laundry, the washing solution is passed through the bottom drain so that it passes through the laundry, in order to promote maximum deposition of bentonite on the laundry and thereby improve its softening effect. The laundry can then be rinsed in the normal manner. When used as a pre-treatment for contaminated areas of laundry, it is preferable to apply the liquid detergent as it is without diluting it (although a diluted solution can also be used) and rub it into the contaminated area.

During its application and rubbing, bentonite helps the detergent to loosen and remove contaminants, whether they are oily or particulate, and at the same time, some of the bentonite is absorbed into the fibers of the laundry material. and thus help to soften the laundry material in that location.

Such softening of the material reduces contamination of the contaminated area, especially when the area is located at the cuff or collar of a shirt.
This contributes to reducing subsequent contamination retention.

Example 2 A liquid detergent similar to Example 1 is formulated, but instead of 8.8% linear tridecylbenzenesulfone salt, 9% linear dodecylbenzenesulfonate, 12 to 1 alkyl.
3 carbon atoms and polyethoxy has an average of 6.5
2% of sodium alkylpolyethoxy sulfate, which is of ethoxy groups, is used instead of the 2.2% used earlier.
0 instead of Alcosparz 107D (used in Example 1)
．． 2% Alcosparz 107 (solids content basis), 1
1% 5TPP, 16% sodium carbonate, 15% bentonite (mineral colloid 101), the aforementioned auxiliaries, and 55.7% CaCO3 hardness 100 ppm tap water, all used. The additional sodium carbonate improves the miscibility of the various ingredients during the manufacturing process, and the substitution of detergents does not significantly adversely affect the properties of the product.

This product is made essentially the same as described above.

This liquid detergent is a stable pourable liquid with the desired cleaning and softening properties described for the liquid detergent of Example 1, whether used for machine laundering, hand washing, or pre-treatment of laundry. Ruru. Its viscosity does not exceed 2.5,000 centipoise after storage for one month at room temperature.

Similarly, when incorporated by addition to the ingredients of Example 1 (replacing water) containing 3% lauryl alcohol sulfate, IJum, 2% Neodol and 0.5% silicone antifoam oil, A liquid detergent that can be used is created. It is also a useful liquid when used to replace sodium citrate or potassium citrate with sodium carbonate (or when partial replacement, e.g. 30% replacement, is made with such citrate or trisodium nitriloacetate). A detergent is produced and has desirable properties similar to the compositions described above.

Example 3 A liquid detergent similar to Example 1 is made, except that only 2% sodium carbonate is used in the formulation and the water content is increased accordingly. Although the content of IJium carbonate was reduced, this mixture can still be processed into a final product with desired properties, which is useful as a heavy-duty laundry detergent for washing and softening cotton and synthetic materials. It is also useful as a pre-treatment for such laundry. When 0.5% sodium carboxymethylcellulose is added to the formulation in place of a portion of the water, the laundry is improved without substantially losing its softening power due to its anti-redeposition activity of CMC. Whitening can be obtained.

In another variant of the invention, useful cleaning is achieved when the proportions of the various components of the liquid detergent of Example 1 vary by ±10% or ±20% without going outside the ranges given in the invention specification. A stable, pourable liquid detergent with a softening effect is produced.

In some such products, it may be desirable to include 10% of any amount of zeolite A or up to 4% of sodium silicate with a Na2O:5i02 molar ratio of about 1:2.4, but Silicates are often avoided, and when zeolites are present, they are usually omitted to avoid deposition of zeolite-silicate salt aggregates or reaction products.

As can be seen from the foregoing description and working examples, the fabric softening heavy duty liquid detergent of the present invention is stable, homogeneous, attractive and functional. Despite the presence of a substantial proportion of gelling agent (bentonite) in the liquid medium, they do not form interfering gels and remain pourable during storage. Despite long periods of storage, during which the suspended bentonite is brought into intimate contact with surfactants and inorganic salt builders in an aqueous medium, the bentonite does not undergo disturbing agglomeration and is absorbed into the laundry. its softening action.

is not destroyed. By using the detergents and builders described above in an aqueous medium in which sodium polyacrylate is also present, a liquid and pourable liquid, even though it contains a substantial proportion of swellable bentonite, can be obtained.
A liquid detergent is produced that retains all of its physical and chemical properties, and these properties allow it to fully deposit bentonite onto the laundry, acting as a lubricant for its fibers, thereby Promote flexibility. Also, as mentioned above, the use of a liquid medium avoids the possibility of bentonite being deactivated by overheating as in spray drying towers.

In addition to being useful as a product for machine and hand washing of laundry, the liquid detergent of the present invention is also good for pre-treating soiled areas of laundry, and is useful for two purposes. The bentonite content helps remove stains and soften contaminated areas (and the product may also be used for subsequent washing purposes). Thus, from the foregoing description of the properties and advantages of the detergent of the present invention, it can be seen that it represents a significant advance in the field of detergent compositions, since it utilizes superior anionic synthetic organic detergents and Non-gelling, so as to achieve both cleaning and softening of the laundry without the need to incorporate chemically adversely reactive cationic substances such as quaternary ammonium salts along with anionic detergents. This is because liquid detergents allow you to use them all conveniently. Moreover, the bentonite used is ecologically not as harmful as quaternary ammonium salts, and removes detergent fatty deposits that can often discolor laundry, as is sometimes the case with quaternary salts. It does not accumulate on objects.

Although IJum salts and sodium compounds have been mentioned as they are particularly preferred and commercially available, it is also possible to replace them, at least in part, with the corresponding potassium compounds. can be and is also within the present invention. For example, potassium detergents, potassium builder salts, potassium bentonite and potassium auxiliary salts can be used and these may be used in a given formulation.
It is considered to be included together with sodium salts as "alkali metals".

Although the present invention has been described with respect to various embodiments and working examples, it is not limited thereto, as those skilled in the art will be able to use Alternatives 2 and the like without departing from the invention with reference to this specification. This is because it is clear that anything can be used.

(5 other people)

Claims (1)

[Claims] 1. Density in the range of 1.15 to 1.35 g/ml at room temperature, pH in the range of 9.5 to 11, and 1.0
00 to 5,000 centipoise and a viscosity that does not increase by more than 6,000 centipoise when stored quiescently at room temperature for 30 days, wherein the higher alkyl content is from 10 to 5,000 centipoise. 5 to 15% of alkyl metal salts of straight-chain or branched higher alkylbenzenesulfonic acids having 16 carbon atoms, alkyl having 10 to 16 carbon atoms, and polyethoxy having 2 to 11 ethylene 1.5 to 5% of alkali metal salts of alkyl polyethoxy sulfates which are of oxide groups;
5 to 25% of water-soluble builder salts, 5 to 20% of swellable bentonite, 0.05 to 0.5% of water-soluble polyacrylates with molecular weights ranging from 1,000 to 5,000.
, and 40 to 75% of water. 2. The viscosity is 5.
6 to 12% of sodium straight chain higher alkyl benzene sulfonates, which do not increase above 0,000 centipoise and the higher alkyl is of 12 to 15 carbon atoms.
, alkyl of 12 to 16 carbon atoms and polyethoxy of 2 to 7 ethylene oxide groups 1.5 to 3% of sodium polyethoxysulfate, 7 to 3% of sodium tripolyphosphate 15
%, 2 to 7% of sodium carbonate, 8 to 15% of finely divided bentonite, molecular weight 1,000 to 3,00
Heavy duty liquid detergent according to claim 1, consisting of 0.1 to 0.3% of sodium polyacrylate in the range of 0.0 to 0.3% and 50 to 70% of water. 3. 8 to 1 sodium straight chain higher alkylbenzene sulfonate with 12 to 13 carbon atoms in the alkyl group
0%, 1.7 to 2.7% of sodium alkyl polyethoxy sulfate, where the alkyl is of 12 to 15 carbon atoms and the polyethoxy is of 3 to 5 ethylene oxide groups, sodium tripolyphosphate 9 to 13% of sodium carbonate, 3 to 6% of sodium carbonate, and the dry, non-swollen particle size is approximately No. 10 to 14% of finely divided bentonite of the 325 US sieve series, with a molecular weight of 1
3. A liquid detergent as claimed in claim 2, comprising sodium polyacrylate ranging from . 4. About 9% of linear sodium tridecylbenzene sulfonate, about 9% of sodium alkyl polyethoxy sulfate where the alkyl is of 12 to 15 carbon atoms and the polyethoxy is of about 3 ethylene oxide groups. 2%, about 11% of sodium tripolyphosphate, about 4% of sodium carbonate, about 12% of bentonite, with a molecular weight of about 2.
,000 of sodium polyacrylate, approximately 0.15%;
and about 60% of water.
Liquid detergents listed in section. 5, about 0.2 of sodium carboxymethylcellulose
% and formalin, and the water is deionized water, has a density of about 1.25 g/ml, and has a pH of about 10.5. liquid detergent. 6, density ranging from 1.15 to 1.35 g/ml at room temperature, pH ranging from 9.5 to 11, and 1,00
A fabric softening heavy duty liquid detergent composition having a viscosity in the range of 0 to 5,000 centipoise and not increasing above 6,000 centipoise upon 30 days of static storage at room temperature, the composition comprising: 6.5 to 20% of a water-soluble synthetic organic detergent of the sulfonated and/or sulfated type; 5% of a water-soluble builder salt for the detergent;
5 to 20% of swellable bentonite, 0.05 to 0.5% of sodium polyacrylate with a molecular weight ranging from 1,000 to 5,000, and 40% of water.
A detergent composition consisting of 75% of