FR2593517A1 - DETERGENT AND PARTICULATE SOFTENING COMPOSITION FOR FABRICS, PROCESS FOR PREPARING THE SAME AND ITS APPLICATION TO TISSUE WASHING - Google Patents

Abstract

A particulate fabric detergent and softener composition is disclosed. The composition comprises, in addition to a detergency builder and a predominantly anionic surfactant other than soap, discrete particles consisting of a cationic softener of the di (lower alkyl) -di (higher alkyl) -quaternary ammonium type. and / or heterocyclic imide in intimate mixture with a dispersing / softening agent of the ethoxylated tertiary amine type, the discrete particles possibly having the shape of spherical grains, spaghetti, flakes, etc. and being distributed substantially homogeneously in the composition. Also disclosed is a process for preparing this composition and a process using it for washing fabrics.

Description

The present invention relates to composi-

  detergent compositions and in particular softening detergent compositions capable of exerting improved effects of detergency and anti-redeposition of stains and to impart better flexibility and antistatic properties to fabrics treated by them, especially in a

machine laundering.

  Compositions intended to exercise simul-

  At the same time, detergency and softening effects to an appreciable degree in machine laundering of fabrics, and thus made for use in the wash cycle, are well known and widespread.

  in the trade. The patent literature is also

  well informed about the transient interaction that takes place between an anionic surfactant, probably the

  more commonly used existing types of surfac-

  these, and agricultural softeners, in particular

  bind those of the di (lower alkyl) di (higher alkyl)

  lower) -quaternary ammonium. From this interaction

  often results in the formation of unpleasant precipitates

  to the view that gets stuck in the submitted tissues

  washing or are deposited in another way. A

  color trimming or other aesthetic effects

  unpleasant are essentially unavoidable. The re

  net result is often a decrease in the actual amount of anionic surfactant available for

  useful because the first consequence of this interaction

  tion is a loss of anionic surfactant.

  Although the most effective types of

  cationic softeners with quaternary ammonium,

  examples of which are the quaternary compounds

  di (higher alkyl) type such as distearyldimethyl ammonium chloride, may act

  in the washing cycle in the presence of surfactant

  ionic, detergency builder, etc., the amount required to achieve an effective softening generally coincides with the amounts promoting the undesirable cationic-anionic interaction. As a general rule, it takes at least about twice as much cationic surfactant to soften than for

  exercise antistatic activity. We examine

  under representative references of the prior art

dealing with this problem.

  In the U.S. Patent No. 3,325,414, which is mainly concerned with well-defined detergents with foaming power, the problem of the cationic-anionic interaction and the adverse effects related thereto are discussed in detail. This patent further notes that quaternary ammonium compounds, belonging to the class of cationic agents, are generally unstable when heated.

  and when they come into contact with adjuvants

  alkalinity, with instability manifesting itself

  the emission of strong amine odors and a color

  desirable. The compositions of this patent are limited to the use of quaternary ammonium halides having only one higher alkyl group, the structural formula indicated for the cationic material being limited accordingly. The cationic compounds of this

  type are significantly lower than the di (higher alkyl)

  at least to the extent that one is interested in

  to the activity of softening the tissues.

  The problem of the incompatibility of

  Cationic resins in anionic detergents is also recognized in U.S. patents. No. 3,936

  537 and 4 141 841 where it is proposed to use an

  organic dispersion bitumen as an essential ingredient

  in combination with the cationic substance. An important characteristic of such inhibitors is a maximum solubility of 50 millionths in water, at C. Similar statements can also be found in U.S. patents. Nos. 4,113,630, 4,196,104 and 4,272,386. The U.S. Patent. No. 4,230,590 discloses

  detergents for heavy work including an adju-

  conventional detergents, surface components

  mainly anionic, a softening agent

  and a mixture of fatty acid soap and cellulose ether. The soap-ether mixture of cellulose is in the form of spaghetti, flakes or other, and it is present in the discrete particle compositions dispersed substantially

homogeneous.

  The U.S. Patent No. 4,298,480 discloses detergents for heavy work whose compositions

  are similar to those described in the pre-

  except that cellulose ether is excluded.

  The U.S. Patent No. 4,329,237 describes detergents for heavy work also similar to those described in the two preceding paragraphs,

  except that the soap particles are in

  lange with a nonionic surfactant.

  British Patent Application GB-2,133,813A, brings additional improvements to the last three patents cited above.

  which are manifested by a lower production of

  (localized tasks) due, for example, to the

  cationic crinkle-including particles

  crits (eg spherical grains) of a

  cationic amine softener and nonionic organic surfactant, these particles being added to the anionic surfactant and the detergency builder

  and being homogeneously dispersed in their

  appears. See also U.S. patents not'

  4,339,335, 4,326,971, 4,416,811, 4,411,803, 4,450,085

  and 4,414,129 which all describe compositions

  granular or powdered detergent-softeners

slow.

  Although the detergent compositions

  mentioned on the basis of detergent / soap and softening

  Since the cationic properties have interesting detergency, antistatic and softening properties, it is desirable to further improve properties while at the same time reducing the overall cost of the product.

  The present invention provides composites

  stable detergent and fabric softener compositions capable of exerting better detergency effects,

  easing without the production of tasks,

  redeposition of dirt and antistatic on fabrics treated by them in a washing operation in cold or hot water. These compositions generally comprise, by weight, about 5 to 40% of a water-soluble anionic surfactant other than a soap, about 10 to 60% of a single detergency builder

  water soluble neutral to alkaline, and in the form of

  separate particles substantially homogeneously dispersed in said composition, a mixture of (i) about 2 to 20% by weight, based on the weight of the composition, of a softener consisting of

  cationic amine such as (a) salts of

  lower C1-C4) -di (higher C14-C24 alkyl) -

  aliphatic quaternary ammonium, (b) heterocyclic compounds, and mixtures of (a) and (b), with (ii) a dispersing / softening compound consisting of

  a water-soluble ethoxylated tertiary amine (preferably

  in a proportion of 2 to 50% by weight

  to the weight of the cationic softener (i)), the percent concentration of the anionic surfactant being at least about (1.5Cs + 5), representing the percent concentration of the total fabric softeners

(i) and (ii).

  In some other aspects, the invention

  includes the processes of preparation as well as the use

  the compositions described above.

  As described in the aforementioned British application GB-2 133 813A, the addition of the material

  cationic mixture with an organic surfactant

  Non-ionic form in the form of flakes, granules or other, has the advantage of greatly attenuating the appearance of spots located on the clothes.

  after drying. Since the non-ionic surfactant

  that acts as a dispersing agent by promoting the uniform dispersion of the cationic softener and, as a result, the uniform deposition of the softener on the treated fabrics, the nonionic surfactant contributes

  also to a uniform and one-year

  ti-redeposition of soiling, especially in

formulas free of phosphates.

  However, the ethoxylated fatty alcohol used

  as a non-ionic dispersant does not contribute

  even to the increase of the degree of suppleness conferred by the cationic fabric softener. Although the reason why the nonionic dispersant does not provide the benefit of better relaxation has not been fully explained, it is believed that

  this may be due to the fact that the nonionic dispersant

  that has no affinity for whitened tissues,

  that is to say, it does not bind to it or attach itself to it.

  There are many types and classes of

  tissue-softening compounds, mainly

  nitrogen compounds, such as quaternary ammonium salts and imidazolinium salts. Nevertheless, in order for a softening compound to be able to replace the "non-active" dispersant of the post-added softener particles, for example spherical grains, of the abovementioned British application,

  it must meet several different criteria.

  Thus, the softening compound must also act

  as a dispersant to disperse fine particles

  cationic fabric softener once the spherical grains have been added to the wash, and it must facilitate the solubilization or disintegration of the grains after introduction.

  in the wash bath. It is obviously necessary that

  softener / dispersant suitable for use

  is compatible with the cationic softener of

  tissues, that is to say that it is not reactive vis-à-vis

  screw of it, and it must also be able to be

  shaped into spherical grains, or any other form of

  discrete particles, and also be compatible with the detergent, the detergency builder and the other ingredients of the detergent composition. The alternative surfactant / nonionic dispersant compound must also contribute to, or at least not affect

  unfavorably, the antistatic property of the com-

total detergent position.

  The present invention is based on the discovery of

  green according to which by replacing the ethoxylated alcohol used as surfactant / non-ionic dispersant with an equivalent amount of an ethoxylated tertiary amine,

  it is possible to reduce significantly the total quantity of

  cationic softener-in the form of its mixture with

259351?

  ethoxylated amine-without experiencing a corresponding reduction

  of the flexibility communicated to the tissues treated

  in some cases, and in some cases

  flexibility. Nor is there any disadvantage

  on the antistatic quality of the treated fabrics. However that the overall properties of detergency,

  softening, anti-redeposition and antistatic

  are improved or not affected by the

  the ability to reduce the amount of cationic amine used as a softener, which is typically the most expensive active ingredient

  formulation, leads to a very substantial saving

  tial. The cationic softeners useful herein are conveniently known materials and are of the type

  very softening. Of these cationic softeners

  These include the N, N-di (C 14 -C 24) -N, N-di lower alkyl C 1 -C 4 alkylammonium quaternary salts formed with water solubilizing anions such as a halogenide. chloride, bromide or iodide, sulphate, methyl sulphate,

  etc., and heterocyclic imides such as

imidazolinium.

  For convenience, the aliphatic quaternary ammonium salts can be structurally defined as follows by: R1 +

R- N - X

  R 3 o R and R each represent an alkyl group of 14 to 24, and preferably 14 to 22, carbon atoms; R2 and R3 each represent a lower alkyl group of 1 to 4, and preferably 1 to 3, carbon atoms; and X represents an anion capable of imparting solubility or dispersibility in water, including chloride, bromide, iodide, sulfate anions

  and methosulfate mentioned above. Particular species

  Preferred aliphatic quaternary compounds include: distearyl dimethyl ammonium chloride,

  di (hydrogenated tallow) yl-dimethyl

  thylammonium, di (tallow) yl dimethyl ammonium chloride,

  distearyl dimethyl methylsulphate

ammonium, and

  - di (tallow) methyl sulphate

methyl-ammonium.

  Heterocyclic imides of the imidazo type

  linium can also be used as

  wrinkles and can be structurally defined as

follow me by: o

N- CH2

R5-C X

2 5 - \ N- CH2

R4 CH2CH2NH- C -R6

  R represents a lower alkyl group of 1 to 4, and preferably 1 to 3, carbon atoms;

  R5 and R6 each represent higher alkyl groups

  substantially linear range of about 13 to 23, and

  preferably 13 to 19 carbon atoms; and X has the

  above mentioned. Especially pre-selected species

  of imidazolinium compounds include:

  1-methyl-1- (tallow) ylamine methylsulphate

  doéthyl-2- (tallow) imidazolinium-yl; commercially available from Sherex Chemical Co. under the trade name Varisoft (Registered Trade Mark) 475, as a 75% active ingredient liquid in isopropanol as the solvent;

  l-methyl-1-oleylamido methylsulphate

  ethyl-2-oleyl-imidazolinium; available in the

  merce from Sherex Chemical Co. under the trade name Varisoft (Registered Trade Mark) 3690; at% of active ingredient in isopropanol as the solvent.

  Mixtures of these can be used

  cationic folds of tissues, including

  of a quaternary ammonium salt and a salt of imitation

  dazolinium. The ethoxylated amines which are useful herein are the ethoxylated tertiary amines which may be represented by the following formula: ## STR2 ## is a fatty organic substituent, and x and y are positive numbers such that the sum x + y

from about 2 to about 15.

  As examples of the fatty organic substituent R, those which are preferred are alkyl or alkenyl groups, which may be linear or branched (linear groups being preferred), and which may have from about 8 to about 22 carbon atoms, preferably about 12 to 20 carbon atoms. The sum x + y is preferably from about 5 to about 15. Particular examples of suitable R groups are decyl, dodecyl, stearyl, (tallow), (hydrogenated tallow) yl, myristyl, oleyl and others, from

  usually higher fatty acid correspon-

  ing. Mixtures of alkyl chains of different lengths, for example C12-C15, C14-C16, C16-C18 C18-C20, etc., are generally used. The amines of

  Stearyl, tallow and hydrogenated tallow are easily

  Examples of products of the Ethomeen series of Armak Chemical CO., for example Ethomeen T / 25 (R = (tallow) yl, x + y = 15), Ethomeen T / 15 (R) are also commercially available. = (tallow) yl, x + y = 5), Ethomeen 18/15 (R = octadecyl (stearyl), x + y = 5);

  and products of the Varonic series from Sherex Chemi-

  callus, for example Varonic T-215 (R = (tallow) yl, x + y =), Varonic T-210 (R = (tallow) yl, x + y = 10), Varonic

  U215 (r = cetyl / stearyl in a mixture, x + y = 15),

  ronic U205 (R = cetyl / stearyl mixture, x + y = 5), and are preferred for the present use with respect to

  their high levels of performance and price relative to

low.

  In the present invention, fatty amines

  its ethoxylates play a dual role, namely

  dispersant to disperse the cationic softener

  tissue, a role equivalent to surfactant

  non-ionic ethoxylated fatty alcohol type of

  the aforementioned United Kingdom request, and

  that of a compound containing active nitrogen,

  softener by itself. In view of this additional

  softening action, the total quantity of

  cationic fabric softener added after the powder detergent composition can be reduced to

  the same total content of softening compounds

  health (cationic softener plus ethoxylated amine) 1 1

  to get about the same performance as

  softening and antistatic action, or the

  quantity of granules, spherical grains, etc.,

  after-the-blow wrinkles / antistatic can be maintained at the same value for further improvement of softening performance

and antistatic.

  The cationic nonionic mixture is

  preferably prepared as spheroidal grains.

  Spheroidal grains are produced by cooling

  by atomization a liquefied mixture of the

  and the ethoxylated amine. In the most preferred embodiment, a liquid ethoxylated amine is used and this is

  added to the molten cationic compound. A compound

  Typical is Arosurf TA-100 (dimetyl-distearylammonium chloride) and this material, as supplied, forms a very fluid liquid when melted and heated to 90 ° C. In another form of

  preferred embodiment, the liquid mixture of ethylene amine

  xyl and cationic compound can be

  cool to room temperature or as needed to solidify. The solid can then be milled to the desired particle size

  and added after the fact to the other ingredients of the deter-

gent.

  Alternatively, the cationic compound and the amine

  Once ethoxylated, once put together, can be first mixed in the desired amounts to form a substantially homogeneous mass which can then be kneaded according to well-known techniques until it is sufficiently soft or plastic to be

  in a form suitable in preference to an ex-

  trusion, or to another treatment, for example a

  ting, granulation, die-cutting

  piece or pressing. The kneading can be performed, for example, by roll grinding, although this is not essential, which is followed by extrusion in a conventional soap-extruder mixer equipped with an extrusion head of the desired type. This last

  is chosen according to the configuration, ie

  to say the geometrical form, which one wants to give to the extrudate. Extrusion in the form of spaghetti or O10 noodles is preferred. Other forms such as flakes, tablets, lozenges, ribbons, filaments, etc., are suitable variants. Special extruders adapted to the foregoing uses are well known in the art and include, for example, Elanco's EXD-60, EXCD-100, EX-130 and EXD-180 models, a Buhler extruder, and the like. In general, the extrudate in the form of spaghetti constitutes a mass that retains its shape, that is to say semi-solid and essentially

  non-tacky at room temperature, which does not require

  site, in most cases, no further treatment

  such as water removal. If necessary, the

  water may be carried out by means of

  simple drying techniques. The spaghetti should have an average length of about 2 to 20 mm in a tolerance range of 0.5 to 20 mm for about 95% of them and a mean diameter or average width of about 0.2 to 2, 00 mm, a range of 0.4 to 0.8 mm being preferred. The bulk density of spaghetti is generally about 0.9 to 1.3 g / cm3. The flakes measure about 4 mm in length and width and 0.2 mm in thickness, the pellets have a straight section of 2.5 mm, while the tablets have a

  straight section of 2.5 mm and a thickness of 2.5 mm.

  In general, it is envisaged to use 1 to 20% by weight of ethoxylated amine based on the weight of the cationic softener. Preferably, the ethoxylated amine should be used in proportions of 5 to

  %, a proportion of about 8-9% being particularly

very much preferred.

  Although we can use here

  In the conventional type, it is preferable that at least about 95% of the surfactant or total detergent be of the anionic type, these materials being particularly advantageous in detergents for heavy duty bleaching of laundry. The anionic surfactants for use herein generally include water-soluble salts of organic reaction products whose molecular structure contains a solubilizing anionic group such as SO4H, SO3H, COOH or PO4H and an alkyl group or moiety having from about 8 to 22 carbon atoms. carbon. Suitable detergents are

  salts of anionic detergents containing substituents

  alkyl killers of 8 to 22 carbon atoms such as:

  detergent salts of alkali and alkaline

  of sulfated and sulfonated water-soluble anionic compounds containing a higher alkyl moiety

  hydrophobic, such as the salts of (higher alkyl) -

  (mono- or polynuclear aryl) -sulfonates whose alkyl group, which may have a straight-chain (preferred) or branched chain, has about 8 to 18 carbon atoms. Preferred species include, but are not necessarily limited to: (linear tridecyl) sodium benzenesulfonate, (linear dodecyl) sodium benzenesulfonate, decyl

  linear) sodium benzenesulphonate, pentapropyl

  lithium or potassium benzenesulphonate; alkali metal salts of sulfated condensation products of ethylene oxide, for example containing

  3 to 20 and preferably 3 to 10 moles of ethylene oxide.

  with aliphatic alcohols containing 8 to 18 carbon atoms or with alkylphenols whose alkyl groups have 6 to 18 carbon atoms, for example (nonylphenol penta-ethoxamer)

  sodium and (lauryl alcohol triethoxamer) -sul-

  sodium fate; alkali metal salts of saturated alcohols containing about 8 to 18 carbon atoms,

  for example sodium laurysulfate and stearyl

  sodium sulfate; alkali metal salts

  of higher fatty acid esters of hydroxy

  low molecular weight alkyl sulfonic compounds, for example the fatty acid esters of the sodium salt of isethionic acid; ethanolamide sulphates

  fat; fatty acid amides of amino-alkyl-amino acids

  sulfonic acids, for example lauric acid amide of taurine; alkali metal salts of hydroxyalkanesulphonic acids, the alkyl group of which

  8 to 18 carbon atoms, for example alpha-hydroxy-

  sodium hexadecyl sulfonate. Anion surfactants

* niques or their mixtures are advantageously used

  in the form of their alkaline earth metal salts.

  The anionic surfactant is preferably of a type which

  is not a soap. However, half

  soap, for example up to 35% and preferably

  20% relative to the total anionic surfactant can be added, for example to the content of the mixer.

  It is best to choose the concentration

  of the anionic surfactant other than a soap so as to bring about an excess relative to the cationic softener, according to the empirical relationship: concentration in% = 1.5Cs + 5 in which Cs is the percent concentration of the softener cationic. This ensures a minimal excess of anionic surfactant that is necessary for the produced composition to have optimum performance of detergency, softening, etc. Minor proportions of other types of detergents may be incorporated in addition to the anionic surfactant, the sum thereof being in no case greater than about 10%, and preferably about 2-5%, of the total detergent, that is, to say that other detergent plus the anionic detergent other than a soap. Those useful herein are nonionic surfactants which contain a hydrophobic organic group and a hydrophilic group which is the reaction product of a solubilizing group such as a carboxylate, hydroxyl, amido or amino group with ethylene or with its polyhydration product, polyethylene glycol. In this class are included condensation products

  of C8 to C30 fatty alcohols such as tridecyl alcohol

  cyclic with 3 to 100 moles of ethylene oxide, the condensation products of C16 to C18 alcohols with 11 to 50 moles of ethylene oxide, the ethylene oxide adducts to monoesters polyalcohols, for example hexa-alcohols, polypropylene glycol condensation products with 3 to 100 moles of ethylene oxide, condensation products of straight or branched chain (C 6 -C 20) alkyl phenols with 3 to 100 moles of ethylene oxide, etc.

  Suitable amphoteric detergents include

  in general, those containing both an anionic group, a cationic group and a hydrophobic organic group which is preferably an aliphatic radical of 10 to 20 carbon atoms or more.

  carbon; examples are the amino acids

  long-chain alkyl carboxylic acids and long-chain alkyl iminodicarboxylic acids

  on N, described in U.S. No. 3,824,189.

  The present compositions preferably comprise a water-soluble, neutral to alkaline buildup adjuvant salt in amounts of about 10 to 60%

  by weight relative to the weight of the total composition

  tale. Organic and mineral detergency builders

  These include alkali metal and alkaline earth metal phosphates, especially condensed phosphates such as pyrophosphates or tripolyphosphates, as well as silicates, borates, carbonates, bicarbonates, etc., such metals. . Particular species are sodium tripolyphosphate, trisodium phosphate, tetrasodium pyrophosphate, sodium pyrophosphate, monosodium phosphate, phosphate

  disodium, hexametaphosphate sodium; Silicas

  alkali metal cates such as sodium metasilicate, sodium silicates whose Na 2 O: SiO 2 ratios are, for example, from 1.6: 1 to 3.2: 1, preferably from 1: 6 to 1: 3.4, more preferably 1: 2 to 1: 3 such as 1: 2.4, sodium carbonate, sodium sulfate, borax (sodium tetraborate), tetrasodium salt of ethylenediaminetetraacetic acid,

  trisodium nitrilotriacetate, etc., and mixtures thereof.

  The detergency builder salt can be selected to provide either phosphate-containing detergents or phosphate-free detergents. Regarding the latter event, sodium carbonate is particularly effective. Another material that has been found to exert good detergency effects is the metakaolin which is usually produced by heating the kaolinite network to drive out the water and obtain a material that is substantially amorphous by X-ray examination but retains in to some extent the structural order of kaolinite. It is processed from kaolin and metakaolin in U.S. N-4,075,280, columns 3 and 4, and in "The Chemistry and Physics of Clays and Allied Ceramic"

  Materials "by Grimshaw, 4th edition, Wiley-Inter-

  Science, pages 723-727. Metakaolin is also the subject of U.S. patent applications. Nos. 905 622 010 and 905 718. It also appears that metakaolin has some softening activity. In this regard, it appears that the most active metakaolins are those that behave best in the reaction with sodium hydroxide to form zeolite 4A, as described in U.S. Pat. No. 3,114,603 where these materials are referred to as "reactive kaolin". As the cited references explain, metakaolin is an aluminosilicate. The metakaolin and / or a zeolite are incorporated in the same proportions approximately as the detergency adjuvant salt, and preferably in addition to it, for example in a

  zeolite: silicate ratio of 6: 1. A particular form

  The most useful metakaolin is that available

  commercially as Satintone No. 2.

  Preferred optional ingredients useful herein include a perfume such as a Genie perfume; optical brighteners and brighteners which may be dyes or pigments, suitable materials in this respect including stilbene and Tinopal 5BM as brighteners, especially in combination, and the direct brilliant blue sky 6b, violet Solophenyl 4BL, Blue Cibacete RBL Brilliant and Purple Cibacete B, Polar Brilliant Blue RAW and Blue Calcicide 2G as brighteners. The brightener may be incorporated in amounts of up to 1% of the total composition, while the brighteners may constitute up to about 0.1%, preferably up to about 0.01%, of the total composition. The brighteners, for example polar glossy blue, can be incorporated in the cationic spherical grains. In all cases,

  only a minimal amount is needed to be effective

that's.

  a18 Other ingredients of optional importance

  These include blachement agents that may be of the oxygen or chlorine releasing type:

  Oxygen blaching agents include

  sodium or potassium borate, potassium monopersulfate, etc., while bleaching agents

  chlorine are typically represented by hypochlorine

  sodium rite, potassium dichloroisocyanurate, trichloroisocyanuric acid, etc. These latter

  bleaching agents that release chlorine are

  of the broad class of water-soluble, dry solid organic bleaches known as N-chloroimides, including their alkali metal salts. These cyclic imides have a 4- to 6-membered ring and are described in detail in U.S. Pat. No. 3,325,414. Each of the

  bleaching agents with oxygen or chlorine

  above are perfectly compatible with the present compositions and their stability is

  good in the presence of the anionic and cationic components

  Picnic. They are generally employed in amounts of from about 0.1 to about 45 percent by weight of the total solids or from about 0.05 percent to about 40 percent by weight of the total solids.

total detergent composition.

  Other optional ingredients

  These include a dispersible and / or water-soluble hydrophobic colloidal cellulosic agent.

  suspending soiling. Methylcellulose

  such as Methocel (Registered Trade Mark), and carboxymethylcellulose (CMC) are particularly effective. Polyvinyl alcohol is also effective, especially in washing cotton and synthetic fibers such as nylon, Dacron and resin-treated cotton. The additional soil suspending agent can be incorporated in amounts of up to about 2% based on total solids, and up to about 4% based on the total detergent composition. In addition to the aforementioned ingredients, fillers may also be included, for example sodium sulfate, sodium chloride, etc. Their proportion goes up to about 40% of the total composition. The detergent composition is prepared by conventional operations, such as spray-drying a blender mixture containing the surfactant, detergency builder, filler, etc., but not containing volatile ingredients such as perfume. nor ingredients that the spray drying operation adversely affects in any way such as a peroxygen bleach, for example sodium perborate. The ingredients of

  this category are preferably mixed after

  stroke. As mentioned before, the mixture will soften

  cationic fold / ethoxylated amine is simply

  dry blended with the dried detergent in the form of

  a simple mechanical mixing operation which is more than sufficient to obtain a homogeneous product. A typical procedure is as follows: water is first introduced into a mixer and then, in that order, the anionic surfactant, sodium silicate, any optionally used optional ingredients such as Satintone N '2 and a feedstock. such as sodium sulfate, and the adjuvant salt detergent. The contents of the mixer are heated to

  about 60 ° C before adding a detergency adjuvant

  for example sodium tripolyphosphate, and the solids content of the mixture before spray drying is about 55-65%. The spray drying can be carried out of a conventional material

  by pumping the hot mixture from the mixer to the

  go to a drying tower where the mixture goes to a

  atomization nozzle in a warm atmosphere of

  evaporation. Bleaching agent and other materials

  remaining to be added are incorporated into the mass

  cleaned and cooled detergent by any appropriate means

  prayed as by simple mechanical mixing.

  In use, sufficient detergent composition is added during the wash cycle for

  the concentration of the washing medium in a mixture of

  the cationic crinkle is about 1.5 to 8.0 g / 3500 g of laundry, the temperature range extending from about 21C to boiling (i.e., about 1 ° C). In this connection, the term "cold" washing means that the washing temperature is at most 21 ° C, and washing "hot" that it is between 21VC

and the boiling temperature.

  Certain types of ammonium compounds

  aliphatic ternary, although relatively inefficient in terms of relaxation, are nevertheless very effective as antistatic agents in the present compositions and in particular because of the fact that

  that they are physically compatible with the sur-

  anionic facets in liquid media. In

  In general, these substances include ammo-

  ethoxylated and / or propoxylated quaternary nium corresponding to the following formula:

CH3 +

(R7) m - N - (R8) n X-

R

7 8

  wherein R and R each represents an ethoxy or propoxy group, m and n are integers from 1 to 50 which may be the same or different, R 9 represents an alkyl group of 14 to 24 carbon atoms and X is as defined above. above. Compounds

  of this type include (a) methyl-bis-

  (2-hydroxy-ethyl) - (coconut) yl-ammonium, commercially available as a 75% ingredient liquid

  active in an isopropanol / water solvent under the

  et al. (Registered Trade Mark) c / 12 from Armak and Variquat (Registered Trade Mark) 638 from Sherex Chemical Co .; (b) Ethoquad c / 25 - the same

  in (a) but having 15 moles of ethylene oxide (each

  cun of R7 and R8 - met n = 15 each) and available at

  % of active ingredient; (c) methyl chloride

  bis (2-hydroxyethyl) octadecylammonium, a liquid with

  75% of active ingredient in an isopropanol solvent

  water / water, available commercially under the name

  Ethoquad 8/12 of Armak; and (d) the same as (c) but having 15 moles of ethylene oxide (each of R7

  and R8 - m and n = 15 each), a 95% liquid of

  active ingredient available commercially as Ethoquad 18/15 from Armak. These materials

  can be used in proportions

  than about 10% by weight of the total composition.

  The present invention may be practiced in a variety of ways and a number of particular embodiments will be described in the following illustrative examples where all parts and percentages are expressed in

weight.

  Example 1A and Example 1B A) 88 parts of powdered Arosurf TA (dimethyl-distearyl ammonium chloride) are heated to 90 ° C. and a fluid melt results. To this melt, 8 parts of Ethomeen T-25, 1

  part of calcium silicate and 3 parts of moisture.

  The mixture is stirred well and then cooled at room temperature.

  ambient temperature. This results in a solid bianc.

  The solid is then ground into a powder (of which O% remains on a sieve with a mesh size of 2.38 mm and less than one percent passes a sieve with a mesh size of 0.149 mm). The

  product looks like the initial Arosurf powder.

  B) Example 1A is repeated except that 8 parts of a nonionic dispersant of the

  ethoxylated fatty alcohol in place of the ethoxylated amine.

Example 2

  A spray dried heavy duty detergent having the following composition is produced: Component% by weight (linear tridecyl) benzenesulphonate (TLBS) 14.5 Sodium tripolyphosphate (NaTPP) 26.0 Silicate (1: 2.4) 6.8 Na2 Co3 4.8 Brightener (Stilbene and Tinopal 5BM) 0.34 Borax 1.0 Methocel 0.5 Carboxymethylcellulose 0.24 Sodium sulphate and water qs up to 100.00 To 100 g of the above composition 4.1 grams (4.1%) of the cationic powder of Example 1A or 4.5 grams (4.5%) of the powder are added.

  cation of Example 1B, to respectively obtain

  compositions 2A and 2B. Each of compositions 2A and 2B is tested for antistatic and softening properties. The results are shown in Table A. The softening is determined under the following conditions: Washing at 37.8 ° C, in a washing machine

  Maytag, with 64 liters of washing water (150 million

  mes) using 100 grams of cleaning composition a tissue load (total weight of about 0.68 kg) consisting of four terry cloth towels, three pieces of 38.1 x 38.1 cm each of the seven tissue types Banlon, Double Knitted Dacron (DTD), Dacron / Cotton Blend (65/35), Cotton Percale, Acetate Jersey (JA), Nylon Knit and Single Knitted Dacron Polyester (DTS), and 10 pieces each three different soiled tissues (spinach on a 50/50 Dacron / cotton blend), sebum on DTD and Piscataway clay on a 50/50 Dacron / cotton blend). After a single wash cycle, the fabric load is dried in a commercial drum dryer for about 30 minutes and allowed to cool for

about 2 hours.

  Six experienced testers were asked to evaluate the flexibility of the towels treated with

  each test composition by one of two methods.

  of: for each test composition, each of the four towels is ranked in relation to each of the towels treated with each of the other test compositions (in four separate groups) and the towels compared are classified from the most flexible to the most rough ; or each of the four towels of each test composition is rated on a scale of 1 (no softening) to 10 (excellent flexibility) and the average of the four values is taken as the flexibility score. In the first test (flexibility by comparison), for each test composition, the sum of the first places (1 point), the second places (2 points), the third places (3 points) and so on and the the lowest total is the best easing performance. In the second test (progressive scale), the mean flexibility score given by each tester is averaged with the other flexibility scores given by the other testers to arrive at a single score of flexibility, with the flexibility performance being as much as the score is higher. Each of these methods has proven to be a reliable and

  statistically significant to assess the

folding.

259351?

  Antistatic performance is appreciated by measuring the static charge (voltage) accumulated on pieces of four different fabrics: Dacron / cotton (65/35); Double knitted dacron (DTD); acetate jersey (JA); and Banlon polyester, washed as described above. Each of the 3 washed and machine-dried parts of each of the 4 different tissues is attached to a support frame. A small piece of wool attached to the outer edge of a rotating circular support is rotated on the support for 5 seconds in contact with the piece of cloth. The temperature is maintained at 21.1-22.2 ° C and the relative humidity at 21%. The tensions recorded for each fabric are averaged (3 different pieces) and the average tensions of the four different tissues are averaged to obtain the static index. The antistatic performance of the cleaning composition is even better than the static index is lower. In general, static indices below about 5 kilovolts (kV) are considered very good and the consumer perceives them as an absence

  Static charge accumulation.

TABLE A

  Sample Compound Amine Note of sou- Index quater- ethoxylated plesse on static

(g / wash) scale

  (g / wash) gressive 2B 3.96 - 8 2.8 kV

(comparisons

  2A 3.62 0.34 8 4.2 kV (Invention) In a test of flexibility by comparison, Sample 2B received eleven first place votes (35 points), compared to 13 first-time votes.

  places (37 points) for Sample 2A.

Example 3

  Example 1A is repeated except that the mixture of dimethyl distearyl ammonium chloride, tallow (tallow) yl amine adduct containing 15 moles of ethylene oxide, calcium silicate and water is stirred and introduced to the mixture. an extruder of the coarse-extruded type of soap where it is extruded as spaghetti or noodles. When these spaghetti or noodles are added to the spray-dried detergent of Example 2, results are obtained.

  similar to those of Composition 2A.

  EXAMPLE 4 Example 1A is repeated except that in place of Ethomeen T / 25, the following ethoxylated tertiary amines are used: (a) polyoxyethylene (5) -octadecylamine, (b) polyoxyethylene (5) - ( tallow (tallow) yl-amine, (c) polyoxyethylene (10) - (tallow) yl-amine, (d) polyoxyethylene (15) - (tallow) ylamine, (e) polyoxyethylene (5) - (hydrogenated tallow) yl-amine, and (f) polyoxyethylene (15) - (hydrogenated tallow) yl-amine.

Example 5

  4% of the cationic softener / ethoxylated amine softener-dispersant of Example la was added to a spray-dried detergent composition of the following approximate formula: Component% by weight (linear dodecyl) benzene sulfonate Na2CO3 a23 Na Borax silicate C12-C15 fatty alcohol with 7 moles of ethylene oxide (Neodol 25-7) Carboxymethylcellulose Satintone Na2SO3 optical brightener and water qs up Excellent results

detergency and relaxation.

Example 6

  0.5 performances 4.5 grams of the cationic softener / ethoxylated amine powder of Example 1A were added afterwards to the dried detergent powder by

  atomization of Example 2. Improvements are obtained

  additional rations of easing (note from

  flexibility on a progressive scale: 9-10).

  The following examples illustrate the production and use of the cationic-nonionic association in the form of spherical grains.

Example 7

  500 kg of dimethyl distearyl ammonium chloride containing approximately 4% of water are heated to 90 ° C., which forms a melt. To this hot melt 25 kg of Ethomeen T / 25 are added. This molten mixture is then atomized down from the top of a tower about 24 meters high and about 5 meters in diameter. At the same time, cold air is passed at about C in the upright direction (i.e. counter-current of the descending atomized product) at a rate of about 850 m 3 per minute. The solidified product is collected at the bottom of the tower. The particles produced are white in appearance, flow freely and are substantially spherical and solid. Their surface is porous (pitted appearance). The apparent density of

  spherical grains is about 0.37 (g / cm3).

Example 8

  4.0 to 4.5 g of the spherical granules of Example 7 are added to 95.5 g of the detergent of Example 2

(without particles of Example 1A).

Example 9

  Each of the previous examples is repeated except that the cationic softener of the cationic softener / ethoxylated amine mixture is replaced by the following compounds:

  (a) dimethyl-di (tallow) methylsulfate

  ammonium, (b) dimethyl-di (hydrogenated tallow) yl-ammonium chloride, (c) methyl-1-methyl-1- (tallow) yl-amiyl-2- (tallow) yl-imidazolinium, and (d) 1-methyl-1-oleylamidoethyl-2-oleylimidazolinium methylsulfate.

29 2593517

Claims (20)

  1. Detergent and softening composition   particle, capable of exerting effects of deter-   ease, relaxation, antiredeposition of   and wrinkles and antistatic on fabrics treated therewith in a laundry operation, characterized in that it comprises, by weight, about 5% by weight of water-soluble organic surfactant other than soap, about 10 to 60% of detergency builder salt   water soluble neutral to alkaline, and in the form of   separate particles distributed in a substantially   in said composition, an intimate mixture of (i) about 2 to 20% by weight, based on the weight of the total composition, of a softening compound   constituted by a cationic amine with (ii) a   dispersant / softener composition consisting of a water-soluble ethoxylated tertiary amine, the percent concentration of anionic surfactant being at least about 1.5Cs + 5 o Cs represents the concentration of   percentage of the total fabric softener.   2. Composition according to Claim 1, characterized in that the tertiary amine ethoxylated corresponds to the formula: (I   , -, - IN / (CH2CH2O) xH R-N N% (CH2CH2O) yH   wherein R is an alkyl or alkenyl group   about 8 to about 22 carbon atoms, and x and 2593517   there are positive numbers such that the sum x + y is from about 2 to about 15.   3. Composition according to claim 2,   characterized in that R is a C16-C18 alkyl group 4. Composition according to claim 2, characterized in that R is a stearyl or cetyl group,   (tallow) yl, (hydrogenated tallow) yl, or a mixture of these this.   5. Composition according to claim 2,   characterized in that R is an alkyl or alkenyl group   C10 to C20 nyl and x + y is from about 5 to 15.   6. Composition according to claim 1,   characterized in that the proportion of the tertiary amine   ethoxylated (ii) is about 2 to 50% by weight   relative to the weight of the mixture of (i) and (ii).   7. Composition according to claim 1,   characterized in that the proportion of the tertiary amine   The ethoxylated ethoxylate is about 2 to 20% by weight based on   the weight of the mixture of (i) and (ii), this mixture   about 2 to about 15% of said composition tion.   8. Composition according to claim 1,   characterized in that the ethoxylated tertiary amine   about 2 to 15% of the cationic amine mixture   (i) / ethoxylated tertiary amine (ii), this mixture constitutes   killing about 2 to about 10% by weight of the composition. tion.   9. Composition according to claim 1,   characterized in that said mixture is the product,   milled mixture of a melt blend of the amine   cationic and ethoxylated amine.   10. Composition according to Claim 1, characterized in that the mixture of cationic amines   and ethoxylated is in the form of spheroidal grains. 31 2593517   11. Composition according to claim 10, characterized in that said spherical grains are substantially spherical hollowed solid particles. with porous surface.   12. Composition according to claim 1, characterized in that the cationic amine (i) is a   two-chain quaternary ammonium halide   short and two long alkyl chains or an imidazolinium compound.   13. Composition according to claim 1, characterized in that the cationic amine (i) is a di (C 1 -C 4 alkyl) di (C 1 -C 18 alkyl) ammonium halide and that the ethoxylated amine is a linear C8-C18 aliphatic chain tertiary amine containing from about 2 to about 15 moles of ethylene oxide. 14. Composition according to Claim 1, characterized in that the cationic amine is chosen from the salts of di (C1-C4 alkyl) di (C14-C18 alkyl) -quaternary ammonium, the imidazolinium salts and their salts. mixtures, and in that the ethoxylated amine is a C12-C18 linear aliphatic chain tertiary amine containing from about 5 to about 15 moles of ethylene oxide.   15. Composition according to claim 1, characterized in that the surfactant other than a soap comprises an alkyl-benzenesulfonate and the adjuvant of detergency comprises a phosphate.   16. Composition according to claim 15, characterized in that the surfactant other than a soap is a linear (C8-C18 alkyl) benzene sulphonate. 17. Composition according to claim 1, characterized in that the surfactant other than a soap   comprises a C8-C18 linear alkyl benzene-sulfo   nate, the detergency builder comprises a phosphate, the cationic amine (ii) is a di (C 1 -C 4 alkyl) di (C -C 14 alkyl) ammonium halide, and the amine   ethoxylated (ii) is a linear tertiary amine   C12-C18 area, containing about 5 to about 15   moles of ethylene oxide, this ethoxylated amine   ranging from about 3 to about 10% by weight of said mixture cationic amine / ethoxylated amine.   18. Process for preparing a composition   according to claim 1, characterized in that   to spray-dry the anionic surfactant other than a soap and the detergent builder salt and to add the separate particles afterwards to the spray dried material.   19. A particulate softening composition, characterized in that it comprises an intimate mixture of a cationic amine as a softener and 2 to 20% by weight relative to the weight of said mixture of a water-soluble non-ionic ethoxylated tertiary amine as a dispersing softener.   20. A method for washing fabrics, characterized   rised in that it consists in putting these tissues in con-   tact in an aqueous medium at a temperature of 26.7 ° C   at 76.7'C with a sufficient amount of the composition   of Claim 1 to ensure a proportion   from 1.5 to 3.5 g of softener for 3500 g of fabric.