CA2028284A1

CA2028284A1 - Composition for laundry materials, process for its preparation and laundry material containing it

Info

Publication number: CA2028284A1
Application number: CA002028284A
Authority: CA
Inventors: Didier Videau; Serge Gosset
Original assignee: Individual
Current assignee: Roquette Freres SA
Priority date: 1989-10-23
Filing date: 1990-10-23
Publication date: 1991-04-24
Also published as: EP0425369B1; FR2653442A1; GR3018575T3; DE69023738D1; FI905208A0; EP0425369A1; JPH03210396A; DK0425369T3; ES2082843T3; DE69023738T2; FI905208A7; ATE130629T1; FR2653442B1

Abstract

COMPOSITION FOR LAUNDRY MATERIALS, PROCESS FOR
ITS PREPARATION AND LAUNDRY MATERIAL CONTAINING IT

Abstract ABSTRACT OF THE INVENTION

composition for laundry materials which comprises at least one phosphate, at least one zeolite and at least one oxidized polysaccharide. The proportion of oxidized polysaccharide represents about 5 to about 40% by weight of the total weight of the three constituents.

No Figure

Description

21~2~

COMPOSIT~ON FOR LA~NDR~ MA~RIALS, P~OCESS FOR
~S PREPARA~ION A~D LAUND~ MA~RI~L CONTAINING IT

The present invention relates to a compositlon for laundry materl~ls and the prooes~ for lts prep~ration. It relates al~o to the laundry mater~al containing this oomposition.
For a long tlme phosphates played ~ predominant role in l~undry material~, espeoially as ~eguest~ants of oatlons which fo~m galts lnsoluble ln water, ~n particular the caloium and magnesi~m lons; the excellent performance that they enable to ~e ~chieved resides ln their particular ~tructure.
Howc~er, one of the aout~ proble~s which the 18undry material~ lndustry mu~t face, 18 the very pollut-ing characte~ of ~id phosphates. In fact, their presence in waste water cau~e~ the well-known phenomenon of the eutrophleatlon~ ~nd for thls re~on the us~ o~ pho~phates ln laundry materiols mus~ comply w~th rectrictlons p~rei-~lerly ecolo~lcal which are more and more severe.
~ hls e~olo~ical aspec~ 11 the more pronounced a~ the powerful detergents currently employed and, ln parti~ular, the p~oduotg u~ed ln lndustrial laundries, contain larg~ amounts of phosphate~ whloh can exceed 30~.
Many attempts ha~e t~erefore been made to elimi-nate entirely or at least partly the phosphate~ ln laundry m~t~ri~ls~
It has especiolly been proposed to use, a~ total o~ partial replaoement agent for the pho~phate~, zeolites of natural or gynthetic origln ; thesc produots are well-known for their ~ation ex~hange power, particularly of calclum and magncsium, which are the source of the hardne~s of water and of mineral ln~rustation problems ln the laundry or linen.

2~2~

However, whlle zeolltes contrlbute to the elimi-nation of these ~t~ons, thelr total substitution for phosphates does not permit a degree of was~lng ~ompatible ~lth the exigenoie~ of praot~ce to be achleved.
Also, to lmprove the washing qu~llty of laundry materlal based on zeolite, lt has been proposed to combine the latter with other agent~ ~uch as, for exampl~, acryllc polymer~ (~rench patent FR-A-2,367,783) or ag~in nitrilo-triacetate - N~A - (Europe~n patent EP-A-~, 31g,053).
lo However, these produotx flre ~lso dlsparaged for the pro~lems e~ther of pollutlon, or of toxiclty th~t they ~ause. ~n fact, the polyacrylates ~how the ma~or dr~wback of not being blodegrodable. A~ for NTA, it 1~ suspected of belng carcinogenic, whlch leads oertain oountrles ,to ~orb~d it~ use.
It has al~o been proposed to u~e, a8 substitution products for pho~phate~, productY known for thelr biode-g~adablllty, namely gl~ona~e~ or ~l~coheptonate~ of an alkAli met~l~ A~ thees product~ do not permit themYelves fllone~ unde~ the condltions, particul~rly of pH, tradl-tionnally encount~red in the fleld o~ dete~gQncy~ to oomplex the calclum sufflolently effectively, they are conventionnally employed in associatlon with other dete~-gency ad~uvant~.
~here exist, ~onsequently, compo~lt$ons ~hlch ~ontain, in addltlon to the ~bovesaid gluconate8 and/or gl~oheptonates, met~slli~ates, polycarboxylic a~ids of the ~itria or acrylio type, pho~phates or aga.in zeolltes.
However, these compoYlt;onQ have not ena~led a re~ponse to 811 the re~ulr~ments of the technique and, 4y way o~
example, it i~ lndicated that, in the ~a~e of compositlons ~omprlsing gluconates, zeolltes and phosphate~, the obtalnin~ of acceptable washing perfo~mance~ ne~sssitates contents of phosphate ~nd of zeollte lncompatlble wlth the proteotion of the environment. Moreover, the~e composl-tlons re~ult ~n a notoreous deac~lvatlon of bleachin~

2 B2~ d a~ents, among which are particularl~ perborate, enlployed c~rrently in washlny produots to remove oxldisable sta~n~.
Consequently, none of the ecologically accepta~le laundry materials ~hlch e~lst at the pres~nt t~me ~hows excellent wa~hlng performance~, whilet g~aranteeing good ~tabll ity of the bleach$ng agents~
It ls therefore dn ob~ect of the inventlon to over~ome the drawbacks of the prior art and t~ prov~ de l~undry materials responding better then those preexlsting lo to the ~ariou~ requirements of practice.
And Appllcant-Q have had the merit of ~lscovering that this ob~eot was achleved q~lte ~urprlsinyly when, ~n laundry mate~ials of the type whioh co~prl~e at least one phospha~e and at least one zeolite, a proportion of about 5 to about 40% by ~elght of the~e constituent~ ls replaced by an e~uivalent propo~tion of at least one oxldlzed polysaccher$de.
Consequent1y, the compo~ltion for laundry mete-riol~ ~ccordin~ to the inventlon 1~ characterized ln that lt oomprlseY o~ l~a~t one phosphate, at least one ~eollte ~nd at lea~t one oxldized polysaccharide, the proportlon of oxldized polysaccharde ~epresenting about 5 to about 40~ by we~ght of the totel welght of the three con~tl-t~ent~.
The p~o~ess of prep~ring the compositlon aooordin~
to the ln~entlon for laundry materlal~ i~ characterlzed by the fact that, in a composition based on phosphate and on zeolite for laundry materlals, a proportion of abo~t 5 tO
~bout 40% by weight of thQse constltuen~s ls repla~ed by an equivdlent proportlon o~ at le~t one oxidlzed poly-saccharide.
Aooording to an advantageous embodiment of the oompo~itlon accordlng to the lnve~tlon, the oxidl~ed p~lysaccharlde i~ an oxldized di-, tri- or ollgo- or a~aln pol~saccharid~ uelected preferably from the g~oup colnpri~in~:

2~2~2~i - oxidized disaccharides comprislng a terminal function of the aldonic type, - oxldized t~isa<~ehi~rld~s~ oxidized oligos~acc:h~ri~ ; ana oxldized hydrolyQls produot~ of st~roh, of cellulose and of hemlcelluloses Comprising a terminal function of the aldonlc type, ~nd - the mixture of the abovesaid oxidlzed polysaccharides.
Advantageously, the oxidiz~d polysacoharide ls a ~te~ch hyd~olysate havlng a Dextrose Equivalent or DE froln 5 to 90 which h~s been oxidized or a gl~cose syrup havlng ~ E from 5 to 90 which has been oxidl~ed and whose acid lndex I, whlch is expressed in num4er of grams of carbo-xylic function per 100 ~ of oxidized polysaccha~ide, and which i~ given by the formula:

I - 100 x - 1~0 _ 100 ~ ~El~r--8_ DE
i8 from 1 to 20 and, prefera41y, comprlsed between ~ ~nd 15 .
Very particularly preferred are oxidized poly-sac~haride~ whic~ have an ~cld lndex comprlsed between about 8 and about 1~ ~nd whic~ are obtalned by oxidation of ~tarch hydrolyæate~ or g1ucose s~rup havlng ~ DE
conprised between about 35 and ~bout 65.
Aocordin~ to another advantageous embodiment, the oxidized polysaocharide 18 an oxidized product having especiolly due to lt9 reducin~ sugars content, a ~ood stabll~ty, especially from the point of ~lew of lt~
colour, when the said oxidlzed product i~ u~ed (when 3 preparing the laundry materl~l ac~ordlng to the lnv~ntion) at any moment and or example at the moment of atomizatlon or ~praying withln ~n envlronment presenting an alk~llne pH and~or a hlgh temperature, environment whic~ 1~ ad~pted to colour (more or less pronounced yellowing) any compo-sition conta1ning it~
In that connection, Applic~nts have Qlaborated new 2~2~2~

p~oducts conststing of ~tabillzed" oxldl~ed polys~ccha-rides whi~h present l~w content6, generally ~ower than o.fi~ pref~rably lower than ~bout 0~1~ and otill prefsra-bly lower than 0.05~, in reducing .~ugars.
~n partioular, Applicant~ hsve found that, when ~ubjec~ng oxidized polysaccharides, ln particular of the t~pe con~tituted of oxidlzed qlucose syrups or oxidlzed ~tarch h~drolysates to conventional hydrogenatlon technl-gues, one obtalns the intended products especially o~idized products whlch ha~e a content ln red~ing s~gars practically equa~ to zero and whloh are ~stabillzed" as far as a posslble yellowlng in the presen~e of a parti-cu~ar environn~snt which favo~rs such a yellowing (alkaline pH, high temperature~ i~ concerned.
The abo~esaid hydrogenation techniq~es compr~e catalytlc hydrogena~lon teehn$ques carrled out ContinuO~S-ly o~ not and u~lng at l~oYt one oataly~t ~ele~ted from the ~roup con~istln~ o the g~oup~ I8, ~ , IV~, VI, VI~
~nd VIII o~ the ~erlodical table and espec~ally selected from the group oonsisting of nl~kel, pl~tlne, palladiu~, cobalt, molybdene and mlxtures of the ~a~d metals.
Hydrogenation technlque~ using Raney nlckel as a cata~yser fixed or not on an lnert carrler in the prescnce or not of an additlonal hydr-ogene ~ource are part~cula~ly preferred.
Other hydro~enation technigues u~ing, in the absence of any hydrogenat~on c~taly~t, hydrogen source~
other than hyd~ogene ~as, fo~ example borohydrides o~
alk~line metal~, especlelly sodlum borohydride, ~ay al~o be contemplated.
The oxldized polysaccharides, especially of the o~ldized starc~ hydrolysates or of the oxldized glucose syr~p t~pe which are "~tablllzed" after ~uch a hydro-genatlon tr~atment, ln partlcul~r thoso h~ving a ~omprise~ betw~en S and 90, an ac~d index I c~mprlsed between 1 and ~0 and whlch a~e Hqtabill~ed" by catalytic 2~32~f~

hydrogenation, ~hen ~ed in l~undry oompositions and laundry materlals provi~e the latter with performances whiah are compa~able with the perEor~ances of the sam~
oxldlzed prod~cts whlch ~re not ~stabillzed", bein~
underlined that in ~ome ooses ceItain paremeters of the said perf~rmance~ of the said stabillzed products may be improved with respect to the products before stabilizing.
Accordtng to another advantageou~ enlbodiment o~
the abovesald composition, the lotter comprises :
- a proportion from 5 to 404 by welght, pre~erably f~om 10 ~o 35% by wei~ht of phosphate, ~nd more preferably still, from 20 to 30~ by weight of phosphate, - a proportlon from 90 to 20~ by weight, prefe~ably f~oln 80 to 30~ by weight of zeollte and, more pref~rably still, fro~ 60 to ~Ot by weight of ~eolite, - ~ proporti~n from 5 to 40% by weight, preferabl~ fro~
to 35~ by welght ~nd, ~o~e preferably stlll, f~om 20 to 30% by ~ei~ht of oxldlzed poly~accharide.
~ccording to another odvantageou~ embodiment of the above-mentione~ compositlon, the r~tlo by wei~ht between, on the one hand, the zeollte ond, on the other hand, th~ oxldlz~d polysacch~ride iy comprised bet~een flbout 0.5/l and 4/l, prefer~bly be~ween l.5/l and 2.5/l and, more preferably ~till, close to ~.0/l.
The laundry material accordln~ to the lnvention i~ characterized by the fa~t that it contain~ a proportion from 5 t~ 40% by wel~ht, pr~fer~bly comprlsed ~e~ween 15 and 35% ~y weight of ~ washi~g composltion comprising at lca~t one phosphate, at lcast one zeol lte and at lea~t one oxiidized polys~ccharide, the proportion of oxidized polysaccha~ide representiny fro~ a~out 5 to about 40% b~
welght of the total weight of the threc cons~ituents of the Compo~ition.
In praotice, the laundry mater~al aocording to the invent~.on which ~onstitutes a new lndustriol product com~rise~ al-so one or several other constituents whlch ~re 2~2~g~8~

fielect~ ln r~A~tl~l~r l~r~m t:hc gro~-p c;UIl~y- 1~1ng ~he de~ergent a~ent~, the ~urfactlve ~gent~, the antlredeposl-tion ayen~s, the oxidizlng ~yents, the ~tructural a~ents, the anticorrosion agent~, the antlfoamlng ~nt9, the enzymes, ~he perfume~, the dyes, and the solubl11zing agents.
The deter~ent ~gents ma~ be for exalnple seleGted among -~ynthetic anionic detergent ~ents, suoh as hydro-soluble alkallne metal ~alts of s~.~phates and organic sulphonates compr~sin~ 81~yl radicals h~ving fron~ about 8 to ~2 carbon ntcms, ~uch as for example ~odi~m or pota~slum dodecylbenzene sulphonates.
It is ~lyo pos~ibl~ to sclect the ~aid agent~
a~ong the non-lonic detergent agents ~uch as especially the alkylpolyqluoosldes or the ethoxylated ~atty alcohols.
~ he oxldizing a~ents, l.e. the produot~ which a~e adapted to ~et freo peroxlde lons ln an amount sufficient to permit the bleaohing of wlne 8tain4, of tea ~toin~, of ooffee 8tain9, etc-, ~ay be in particulflr perb~rates, perc~rbonate~, perslllcates or perphosphates of alkAline mctals and e~peclally the sodi~m perborate, ~ he structural aqent~ may in particular be selected from the suqars, the hydrogenated ~ugars and the mi~tures o~ the above-mentioned products ~nd especlally z5 tho~ whloh consi~t of or whlch at lea~t contain ~ mono-sacoharide ~uoh aY glucose or fructose and/or a digaccha-rlde gUG~ a8 maltose or sa~harose and/or their hydro-genatlon produot~.
Thc ~aid structural agents may especlally consi~t of or contaln, at least partially, sorbito~ and especial1y consist of hydrogenated products obtained by hydrogenation of ~tarch hyd~olysates or g~ucose syrups.
Furthermore, the laundry material a~cord~n~ to the - lnvent~on may contaln de~ergency additive~ normally used ~uc~ as polyac~ylic aald (PA), ~itrllotriacetic aoid (~TA) and/or their respecti~e salt~, e~pecially thelr ~odium 2~2~2~

~alts.
As alre~dy indlcated above, Applic~nts have found that, s~rpri~lngly and unexpectedly, the laundry material~
a~cord1ng to the lnventlon enable ~he dra~backs of the prior art products to be ove~colne: ln part~cular, they result in ~ery much ~uperior de~rees of bleaching.
Witho~t wishing to be bound ~y theory, Applicants attribute th~ excellence of these performances to t~e stoblllzing effect pl~y~d by the oxidlzed polysaccharides lo wlth respect ~o the oxidiz,ing agent~.
Thi~ res~l~ is par~$eul~rl~ pronounced when the oxidislng ~gent ls a perborate, especi~lly of ~odluM, and when the compo5itlon according to the lnvention comprlse8, a~ oxidized polys~ccharide, an oxidized glucose Y~rup.
Consequently, ln order to p~oduce the oom~osltio aY well as the laund~y mate~lHl ~ccording to t~e lnven-t$on, prooedure 18 as follows or in equivalent ma~ner: ' Sald comuosltlon l~ made to ~mpri~e ~t le~t one ~hosphote, at ls~st ~ne zeollte and at leo3t one o the ~bove-d~fined po~y~eccharid~
A8 re~ard~ the ~bovesaid phosphate, recourse i~
~enerally had to a mono- or a polypho~phate pre~erably selected from the ~roup con8tituted by orthopho~phate, pyrophosphate, tripolyphosphate, hexametapho~hate, trl-polyphosphate belng more partlcularly preferred, especlal-ly in the form of its ~odlum salt.
ln connecti.on wlth the pre~ent lnven~lon the ter~l "zeollte~ comprise~ any lon exchanging materi~l of the aluminosilicate type, of cryst~llinQ or amorphous nature 3o ~nd o~ natural or ~ynthetic origln.
These pr~ducts, which ~re well-known by those skllled in the art, are for oxample a~ailable on the trade ~nder the commerc.ial nanle~ ~zeollte A", "zeollte ~", "~eolite X" or "zeollte ~S".
In particula~, a arystalllne sodium sillcoa1uml-nate of the "zeollte A" type can be used.

.

.

2~2~

In ordsr to prepare the composltion for laundry materials acoordin~ to the lnvention, the three a~o~e~aid constituents sre put ln presence of one another, for s~ample by mixture usin~ the above-mentloned proportions.
The th~s prepared compositlon which is adapted ln particular for the washing of textiles as welI in a maohine or "hand-washed", ls ~table and const~tute~ a new lndustrial product. That co~position is preferably ln the ~orm of free-flowing particle~, espec~ally in the form of ~ powder or of granulate~.
No ~peclal proces~ and n~ ~peclal ~nstallation other than those normally used by those skilled ln the art 18 necessary for the preparatlon of the above-mentioned ~ompos~tion; those ~kllled in the art may for example re80rt to clas5ic technlque~ of drying of aq~cous suspen-slon~ by spraying. Th~ sam~ applle~ to the preparation of the laundry matorial~ ac~ordlny to thc lnventlon.
The mixt~re of thQ at ~e~st one phosphate, the at lefls~ one zeollte, and the at lea~t one poly~accharlde to bo comprloed by the compo~itlon accordlng to thc invention can be carrled out ln one or seve~al ~teps, the ~aid component9 beln~ ln the form of powder~, of llquld~, or of mlxture~ of powder~ and llqulds.
For example, lt ls possible to mix the phospha~e wlth a ~preco~po~ltion" con~istin~ o n free-~lowinq com-po~it10n comprlsing ze~lite and oxidized poly~aceharide.
Such ~ preco~nposltlon can be o~t~ined especlally 4y granulation o~ ~ mixture of zeollte and oxldlzed polysaccharide, for exa~ple ln a ~ranulation lnst~llaeion of the AERO~ATIC type or on a ~dish type" ~ranulator.
: By the way of ~xample~, flve compo8tt~0ns according to the inventlon ~re indlc~ted below, each tlme 3pe~ifylng the ratlo R = zeollte oxidlzed giuco8e 8yr~
In these five examp~e~, 2!~2~8~

- the formula of the zeolite used ls Na20 Al~03, ~5iO2, xH20 (x o 4 to 5); lt 1~ Zeolit~ A, - the oxidized glucose syrup is that obtained by cataly-tlc oxidatlon of a glucose ~yrup h~vin~ a D~ olose to 40 (I ~
- the phosphate i~ sodium t~ipolyphosphate.
In Tablo I, are grouped the proportions of three constituents ln each of the flv~ compoqitions descrlbed by way Of exa~ples and which a~e denoted respectively ~y the letters A, B, C, D and E.

Con~tituentS Composition (in %) . .
15 - A B C D E - .
~a tr1polyphosphate 15 63 6 25 15 63 ______ 15.6 zoolite 48 12 62 556 25 ______ 64.3 ~xldize~ ~lucoso syrup36.25 31 25 a~ . 12 ______ _____ Ratio R 1.33 2 2 Z 3.2 To prepare the laundry material ~c~ordlng to t~e lnvention, recourse is had to the conventlonal conQ~lt-usnt~ of laundry materlal~ of the prlor ~rt, ba~ed on phospha~e and zeolite and the assoclat$on constltuted by the phosphate and the zeol~te ls repl aced by an ldentical or neigh~ourinq proportlon of one of the composltion~
according tO the invention.
The laundry materi~l thus produced i~ in the form of powde~; lt ls stab10 and con~tltutes ~lso ~ novel lndustrlal produGt.
~ y the ~ay of exa~ple, there ls given below ~Table II ) the con~tltution of a laundry ma~e~ial according to t*e p~lo~ art.
: 35 2~2~32~l~

TA~3LE~ II

Con.stituent Man~acturing Pro~ucIng ~ by . brand or for~ul~ CompanywC~ght 5 ~l~k~s o~ Ma~ ei11e soap LE CHAT ~ENKEI~ 7 odccyl ben~ene su1~honate ~LUKA 3~5 te~ric cetyl ~lcohol EMp~ AN KN 11 MARCHON 1,75 thoxylated ~lcohol E~ILAN KC 7/L MARC~1~N 1-~5 odlu~ ~u]phate ~a2 SO4 PA~REAC 10 lQ sodium met~.si1ic~te SiO2 Na2O-5H20 PROLABO 10 odium csrbona~ Na2 C3 PANREAC 8 odiu~ perboI~ate 3' 2 FLUK~ 25 ~OLITE A N~20 A123 2S~2 x H20 (x-4 A 5) ~ONTE~ISON lZ
odium tripolyp~)osphate Ne5 P3 lO ~IONE-POULENC ~O
~srboxymcthylcellul~e ~LANOSE 7M65 AQUALON

Thi~ product which contalns 32% of deter~nt hdditivH (pho~phate and zeoltte) iS representative of the 2~ formul~tlons of blnary mlxture trip~lyphosphate-2eollte ~cording to the prior art.
In addition, flve examples of laundry materials Al, Bl, C~ El eccordlng to the lnvention were prep~red which dlfferred from the ~roduct according to the prlor art by the repl~cem~nt of 32% of phosp~ate ~ zeolite by respectively each of the abovesaid com~o~ltlon3 ~ to E
or detergence additlvQs, ~ccording to the inVQntiOn of whlch the constituents are therefore present ln the laundry material ln the proportion~ lndicated ln Table III, .. . .

2~2~2~

T~BLE ~II
_ .
Laundry materlals (propo~tlons ln % by weight Constituent~ of the of the col-etituen~ of the 5 dete~gence additive detergQn~e ad~ltlve) . , Al 131 Cl Dl E
Na Tripol~phosphate 5 2 5 8 S
Zeolite A 15 . 420 18 1620. 6 oxidized ~lucose syrup 11.6lO 9 8 6.4 ._ TO demonstrate the effecti~enes~ of the co~nposi-tions and~ consequently, of the laundry materials acoording to the lnvention, comparatlve trial~ were carried out using, one the one hand, the aboves~ld laundry mater$al a~cordlng to ~he prior art and, on the other hand, the ~ive laundry material8 according to the lnven-tion Al to E1~
Theso ~ompara~lve t~ial~ conslst Of w~shing trialY
wh~ch were ~erformed by me~n~ of wash1n~ mac~ine~ o~ the ~ASCATOR FOM 71 ~rand, wlth front loading Of 70 llter~, the ~otary ~peeds ~ein~ 52 rpm on wa~hlng and 530 rp~ on gpin-drying.
The trlals were ~arried out at the threQ followlng temp~ratures: 40~, 60'C and 90-C.
For the tlial at 40-C, a rise of temperature of 15 minutes with reduoed agltatlon was provided, then a plateau at 40C of 6 min~tes with vigorous agltatlon. The ~omplete cycle, that i8 to say lncludlng here the fil-. llng~, rlncings and spin-drying, lasts 48 m~nutes.
3 For the tri~l ~t 60~C, there was provided a rlse in temperatu~e of 18 m~nute~ with reduced agltation, then a plate~u ot 60C of 12 mlnutes with vlgorou~ ~gi~at~on.
The complete oycle lasts 6S minutes.
For the trial at 90C, a ~ise ln tempQrAture of 37 mlnutes with reduced agitation was provided, and a platcau at 90C of 12 minutes wlth vlgorous agitat~on. The 2~2~2~

complete cycle lasts 85 minutes.
In three trlals, the volume of wa~hin~ ~ater wa~
20 liters.
Three washlngs were carr~ed out per temperat~re.
~he hard~ess of the water was 351 TH.
The washing load was compose~ of 3.5 k~ of pleces of wh1 te fabric (cotton or synthetic~ of which the sizes were 55 cm x 70 cm.
On each washing, there was lncluded with a load of 3,5 k~ of pleces of w~ite fdbric~ a group of "soiled f~br~c~" of differ~nt type~ and which include ~oilings predetermined and predeposited on these fabrics.
In p~actlce, these hpresolled~ fabrio~ wh~ch are pinned to the wash$ny load, are the followlng~:
- 2 strips of grey cotton each constituted by three pieces sewn together, namely a plece of fabri~ of the brand TES~-FA~R~C (~ollsd by a mlxture of mineral and veyetab1e 0~18 and c~rb~n block), a ~lece of fabric of the K~FELD brand (soi1ed by an ~nlmal oll ~nd ~arbon black) and ~ plece of febrlG of the bran~ IEC (sol1ed by a mlner~l oil and carbon black), - 2 strip~ of grey synthetic fabr~cs of the brand TEST-FA~RIC of the ~cetate, aorylic, polyester ond poly-e~ter~cotton tY~e ~soiled bv a m~ xt.l~r~ ~f ~ no~l n~
vegetable oi1s and oarbon black), - 2 8trip~ of cotton of the brand EMPA 103 con~tituted by three pieces sewn together, namely:
- a piece of white cotton ~of the EMPA 221 type), - 8 piece of ~rey ~otton ~of the EMPA 101 type solled by a mixture of vege~ab1e oil and carbon black), - a piece of cotton solled wlth blood (of the ~MPA lll type ), - a piece of cot~on ~oiled with Co~oa (of the EMPA lt2 type), - ~ plece of cotton soiled by a mlxed ~te1n of ~ilk, blood, carbon ~laok (of the EMPA 11~ type), ..

- 2~2~@~

- a plece o~ unbleached ~otton ~of the EMPA 222 t~pe), - a plece of cotton ooiled wlth wine (of the EMPA 114 type), - a piece of cotton ~olled with sulphur bl~c~ ~not u~d ~n the prc~ . M~dyU~ ~III~tl)ts ~, - 2 8tripg of cotton ~oiled wlt~ tea o the KREFEI.~ br~nd (ref. WFK lOG).
The dose of laundr~ materlal ~as 7 g~l of water.
To evaluate the quality o the w~shing, on the one hand the removal of the 80illng and of the stalns nnd, on the other h~nd, the efect of ~he wa~hings on gre~ing, on yellowlng and on the de~ree of hleachlng were measured.
To evaluate the removal of the so$~ing and of the ~tains, prooedure waS by photo~etry (me~surement~ ~f the smount of light reflected by the fabric~: lt w~ thus po~ible to calculote the pQr~entages of remov~l of the so~llnD. A devlce ~or mea~urlng t~e reflect$on of ll~t, marketed under the br~nd ~LREP~0 2000 by the Datacolor Com~eny wa~ used.
The removal Of the 8011ing 1~ expressed by the formula Removal ln ~ ~ CA ~ B x 100 (1) in wh~ch:
~5 A ~ reflectanoe ~f the eontrol whlte sample, : B ~ ref~eotance of the ~ontrol soiled sample, C ~ ~efleotance of the soil~d sample ofter testlng.
The reflectances were determlned by mcan~ o~ ~he blue trlchrom~tio oomponent, ~nder t~e action of optlcol ~0 blueln~ agQnt~.
The number of mea~uremQnt~ c~rrled out yer ~abrlc wa~ ~, which means 4 me~surements ~hat l~ to say at four dlfferent pla~es on the ~me plece of fabrio) x 3 washing ti~ne~ x 2 ~trip~ of obric ~ 2~ measurement~ per oilin~, per fo~mulation and p~r temperature.
Reg~rding the ~reylng, the yel lowin~ and the de-~ree of bleaoh~ng, the oumulat~d ~ffect of th~ee Wa9~ing8 .. . .. .. . ~ .. . ~ . . ... , . . ~ .

20282~

was ~ca~ured (the provis~on~ o~ the standard NF T 73 601 were used) on three cuttings of E~PA 221 uneoiled ~hite cotton whlch ~e~e lncorporated ln the washin~ bath. On each cutting, 4 measuremcnt~ were carried out, ~hich therefore gave 12 mea~urement~ per fonnulatlon and per telllperatUre 8 tudied.
If there are denoted :
- by Rgo, the green tr~chromatic ~omponent obtained before was~lng, - by Rbo, the blue trichromatic colnponent ob-tained before washln~ and - by Rg and Rb, the s~me measurement~ performed after the washing, - the lntrinsic ~reylng 1~ ~lven by the ormula G . R~o - R~
- the lntrinsic yellowlng ls given by formula J _ (Rg-Rgo) - (Rb-Rbo) - th~ dQgree ~e bleaching ie given by th~ formul~
~L ~ 3 (Rb-Rbo) - 2 (R~ o).
~n th~ trlal8 prop~r whioh wlll now be described, the effeotiveness of the laund~y mate~ials acco~din~7 t~
the lnvention were studied ~ucce~9ively on soiling~ based on oil ~nd on car~on black, then on proteinic stains ~nd oxidi~able ~t~ins and finally the ~de~ree of ~hitencs~"
z5 oonferred ~y said mater~als on thQ treated f~brics was deter~ined.

1. Stains produced_by mlxtureg of o~neral, ve~etable and/
or animal oll wlth carbon blaok.
Washiny tr~als were ca~rled out, on the one hand, on ~rey cotton and, on the other hand, on ~yntheti~
fabrlcs.
~) Trial~ on ~re~ Cotton By washin~r ~here were treated succesSivQly each time two strlps of ~rey cotton, whose origin and ~ode of ~olling are lndlcated below:

2~2~2~

~6 - Grey cotton of the brand TEST-FABl~IC solled by a mix~ure of mlne~al oll, ve~etable oil ~nd carbon bl~ek Grey cotton of the KREFELD brand ~oiled by a mixture of animal oll and ~ar~on blacX
- G~ey ~otton of the EMPA 101 brand soiled by a mixt~re of ~egetable oi1 and carbon black - ~rey cotton of the IE~, EMPA 106 ~rand $oiled by a mixtu~e of mineral oll and ~arbon black.
These fou~ type~ of solled ~otton are represent~-tive of insoluble pi~mentary soilln~s bound to the fabric by ~reasy film, as for example the coll~rs of ghlrt~, o~coat~, rag~ ~nd the greasy ~ta~n-Y.
The threo groups of tests ~arried out respecti~e1y at 40~C, 60C and 90C gave or the products Al, B~ D1 and E1 from the point of vie~ of remo~al of soilin~ represented by the abov~-said formula (1), the ~e~u1ts co11ectod re~peotively ln Tab1es IV, V and VI~' TA~LE IV
(~ri~1~ et 40C) Type Removal of solllng (ln ~) o~ febric Prlor ort A1 B1 C1 P1 _E
TEST-FA~RIC 44.9 37.1 39.8 38.3 43.1 43 KREFELD 70.4 71.2 71.7 6g.3 73.1 ?1 25 l IEC 44.2 46.7 44.0 4~.5 45.4 44.1 EMPA 22 . 4 22 . O 24 . 2 23 . 5 22 . O 22 . 9 ~verage 45.5 44.2 44.9 q3.4 45.9 4S.3 3o 2~2~2~

TAElr.E V
~Irial~ ~t ~(;)C) Typ~ Removal of 80iling ~ in %) of fabric Prlor ~rt Al ~1 C1 D1 E
_. .
~r~;ST-FABRIC 63 44 . 7 45 . 5 4g . 2 46 . 5 43 . 4 RR~.F~LD 64 . 5 79 . 8 ~4 . 7 8S .1 81. 6 79 . 8 IEC 54.7 49.9 50.2 50.7 50.8 47.7 E:MPA 37 . 6 ~8 . 1 29 . 1 29 . 4 32 28 . 4 Average 55 50~6 52.4 53.G 52.7 4g.B
TA~I.E VI
(Trl~ls at 90'C) ._.. . . ...
Type Removal of oolllng (ln ~) f fabrio P~;o~ art Al B~ Cl D1 _ E1 TEST-FABRIc 88 92,9 88.1 93.7 94.l 94.3 KREFELD 72.3 97-2 95.9 95.9 98.6 9~.8 IE~ 69.1 65.2 65 66 69.2 67.B
BMPA 53.9 47.2 42.4 47.9 46.5 ~
20 Aver~ge 70.8 75.6 72.3 75.9 77.1 76.9 The ~olling u~ed belng diffe~ent fo~ each of the fabrio~ by the addltlon cf greases tvegetable, ~nlmal, mlneral or ~lxed), they ea~h ~a~e a diffe~ent response.
~evertheless, their ave~age gives a ~od idea of the natural sollln~, and lt i~ then observed that the formu-latlons A~ Cl, Dl ~nd El glve results which are es : good ag those of the contr~l.
~QsldQs the remarkeble stabilizlng power o the oxldl~ing agents that the composlt$on accordlng to the lnventlon confer~, the laundry m~teri~l~ comprislng this ~oves~id composition snable the sati~fying of the whols of the ~riteria required ln deter~ency.
b) T~als on grey synthetic materials ~he synthetic f~brics u~¢d here wers fabrlcs of the acetate, ~orylio, polye~te~ ~dao~on) ~nd polyest~r/

~2g2s~

cot~o- (daoronfcotton) type of the brand TES~-FAB~IC; they were 80ilQd wlth a mlxture of ~lneral oil ~nd vegetable oil wlth carbon bl~ck.
~ he three group~ of the trlals csrried out respectlvely ~t 40C, 60C and 90C gavQ fo~ the products Al, Bl, Cl, ~1 A~d El from the point of view of thc r~mov~l of 80illng represented by the abovesaid formula (1), the res~lt8 which are collected respectively in Tables VII, VIII and IX.
TA~LE VI I
(Trlal~ at 40C) ~ype of Removal of soillng (in ~) ~ynthetic PriOr art Al ~1 Cl Dl E
.. ._ .
15 Aoetat~ 86.9 83.1 85 . 2 84 . 9 85 . 2 B4 . 5 Acryll¢ 53.2 55.1 56.4 58.9 59 57.7 Polyester 27.5 36.8 36.2 3~.8 37.2 36.g Polyester 61.5 53 56.9 S8.1 59.8 59.2 cotton 20 Avera~ 57.3 57 58,7 59.7 6~.3 59-6 ._ . .
TA~LE VI ~ I
(Trl~ls at 60~) Type of Removal of solllng (en ~) 25 ~ynthetlc Prior 8rt Al ~1 Cl Dl El Acetate 81.1 85 . 6 84 ,1 86 . 6 68 . 8 132 . 4 Aorylic 71.2 71.9 74 . S 69 . 9 71.5 70 Polyester 19.4 21.6 26.3 24.8 20.1 20.3 Polyester 60 . 7 51.9 52.7 53.7 54.6 53.9 3o ootton AvQrage S8.1 57.7 S9.4 58.8 58.8 56.6 2 Q 2 8 2 ~ L.~C

TA~LE IX
(Trial~ at 90~C) Type de Removal of soillny ~in ~) 5 synthetlc Prlor art Al ~l C1 Dl El Aceta~e 97.2 99.6 lOl.4 lO0.4 lOl.l 99.3 Acrylio 9~,4100.~ ~9.6 97.2 98.5 lO0.5 Polyester 37.635.8 32.2 28.9 ~5.3 34.3 polyester 78.677.8 76.3 76.9 79.8 77.3 lO cotton Avera~e 78.378.3 77.4 75.8 78.7 77.g . ~he average of the res~lt~ lllu~trates the behaviour of the products accordlng to the lnvention at respcctlvely 40C, 60C and 90~C en synthetlo fabrle~.
Just as on grey cotton, the formulations A~ Cl, Dl and El gave regult~ aY yood as the prod~ct according to the prior art and ~hls at a11 tem~eratures.

20 '~. Protelnlc ~talns ~ he action of the products accordlng to the invention on ~roteinic stain~ is studied by ~lng fa~rlcs of the cott~n type of EMPA brand, n~mely: EMPA lll f~rio ~oiled wi th ~lo~d, EMPA llZ fabric 80i led with cocoa and EMPA 116 fabrl~ ~o~led with a mixture of blood, m1lk and ~ar~on black.
Those ~oiling~ ~re representatlve of ~sln~ of thc ~loodr mllk, egg, meat ~uioe, mayonnaise, sauce ~ype and the like.
A group of tri~l~ performed ~t 40C ~ave for the produc~s Al, 81, Cl, Dl and El from the point of vlew of the ~emoval of soillng represented by the abovesald forlnula (1), the re~ults collected in ~able X.

2~2~

TA~L~; X
~Trlal~ at 40C) Type of ~emoval of 90~11ng (in %) 5fabric Prior art Al ~1. Cl Dl E
.
EMPA 111 47.4 50.2 S0.6 51.6 52 4~.4 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ E~PA 112 2~ ~4.2 26.1 26.5 28.? 25.1 _ _ _ _ _ _ _ _ _ _ _ _ _ __ ~ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ EMPA 116 10.3 llt4 12.6 12~! 12.7 12.4 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Average28.~ 28.~ 2g.8 30.1 31.1 28.6 The te-l~pera~ of 40~C W~8 seleoted as ~in~le workin~ temperature on proteln ~tains. In fact, as the fo~mulation used ls without en~yme~, the temperature which reflects the best the present tendancies of the market ln laundry materi~l~ was se1eoted.
It was observed on the average of the measure~ents that 0rmulation8 Al, Bl, Cl, Dl and ~1 gave results supe~ior to or e~ual to tho~e of the ~roduct a~oordin~ .to ~ the prlor a~t-3. Oxldizable stalnY
The effect of laundry materl~l~ according to thelnventlon on oxidlzable ~teing wa~ studied by u~ing the followiny fabrlc~:

- cotton of the brand KR~FBLD 10 ~ soiled with tes - cotton of the brand EMPA 222, that is to say unsoiled, unbleached cotton - co~ton of the brand EM~A 114 s~iled with wine.
3 The above~aid fabr~cs are sensitive to chemical ox1dation: thQ stain~ ~aused are those ~hlch the bleachlng attenuates or causQs to di~appear (other stains of thi~

t~pe sre those aaused by fruits, coffee, vege~able~ and the like), The three groups of trials performed respectively ~t 40C, 60~ and 90C ~ave for the products Al, al, Cl 2~2~2~

Dl and E1 fr~m the point of view of the re~oval of soillng -.
represented by the abovesaid orm~1a (1), the results collec~ed respectively ln Table~ XI, XII and XII~.
TA~LE XI
(Trlols At 40C) Type ofRemoval of soiling ~ ~n ~ ) cottonPrior art Al Bl Cl Dl El TEA 1 6 . 6 10 . ~ 12 . 7 1 3 1 1 . 5 1 2 . 4 10 ______________ ___________. ____ _____ _____ ___ _______ UNBLEACHED
COTTON _ _ _ _ _ _ _ _ _, . _ _ _ ~ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ WIN~ 3t).7 31.2 29.6 29,531.4 30.7 15 ______________ ~ __________ _____ ~____ _____ ______ ,_____ Avera~e16.4 15.6 16 15.8 15.9 15.9 TA13LE X~ I
( Trlals at 60 ' C ) q'ype O~ Removell of Yolllns~ ( ln 96 ) cotton Prior art Al E~l Cl Dl E~
~EA ~ 39 6______47 8___ __39 4 UNBLEACHE~
25 COTTON 1~ 14 16.7 16.9 15.q 12.9 ______________ ___________ _____ ______ ____ ______ ______ WINE 43.6 46.747.5 53.4 49.7 45.l ______________ ___~_______ _____ ______ ___ ._ _ ____ ______ Average 29 33 . 4 3$.1 39.4 35.5 32.5 ~o .

2~2~2~

TABLE X I I I
(Trials at 90C) Type of ~emoval of ~olllng (ln ~) cottonPrior art Al Bl Cl Dl EI ~
TEA 61.2 ~.7 89.4 88.7 87.9 80.7 ___ .__.._____ ______ _____ ,______ _____ ____ _ _____ _______ UNE~LEAC:HED
COTTON22 . 8 48 . 44g . g 4~ii . 3 47 . 4 :~g . 6 10 ________________________ .______ ___ ___ ______ _____ ___ ____ WINI; 71. 8 97 . 793 . 5 96 . ~ 98 ~3 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .. _ _ _ _ _ w _ _ _ _ _ _ _ _ _ _ _ _ _ Avera~e 51.9 78.6 75.9 76.9 77.8 71.l ~ he avera~e of the results obtained on the. ~t~lns ~5 of tea and wlne and on unbleached cotton reflects the behaviou~ of the products tQ~ted on all ~tainY of thls femlly.
Thus, at 40C, th~ produ~t~ acoording to the lnventlon Al, Bl, Cl, Dl ond El gave results ~imilar to zo those of the product6 a~ordin~ to the prior ~rt.
on the oontrary, at 60 ond 90-C, t~e product~
occordin~ to the invent~on wero much more effective and gave results whlch, wlth respect to the produot accordlng to th~ prior art, were s~perlor by 3~ in the case of the product Cl at ~O'C and b~ 51~ ln ~he oase of the product Al at 90C.
For each trial and for each product ~he ~ariat~on expl e~sed ln % of the re~oval o~ ~oiling wlth re~pect to the re~oval of soiling obtained with the product acoording to the prior art wa~ calculated ~nd the c~lculated values are ~olle~ted in Table XIV.

2~2~2~

TABLE XIV
........
variation (in ~ of the r-emoval of 80iling w~th respect to ths product a~ording to the prior art 5 . . Al ~1 Cl ~1 ¦ E

40~ ~ ~.8 - 2.4 - 3.6 - 3 - 3 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ~
60~ 15.1 21 35.8 22.4 12 ____________ _______ _______ ________ ________ __ ______ ~0C 51.8 46.2 48.1 4~.~ 36.g 4. Degree of bleachlng Unblued white cotton of the brand EMPA 221 wa~
used to determine if a gl~en laundry material was ~itable for preser~lng, for incrQasing or ~or dimlnishi~g the irlitial degree of whltenos~ of the fabrio.
~ he ~hre~ group~ of $rlals performed re~pectively at 40'C, 60C and 90~ g~ve for the prod~c~-Q A~ Cl, Dl and El from ~he point of vlew of de~ree of wh~teness ~iven by the abovosald fo~mula ~ L ~ 3 ~Rb - Rbo) - 2 (Rg - Rgo), the results collected in ~able XV.
TA~L~ xv V~riation (in ~) of the degree of whitenes~
Trlal at Prior art Al Ul Cl Dl ¦ El 40C 2.5 2.5 ~.g ~.fi 2.7 2.4 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 60'~ 8.3 8~3 8.6 8.~ 8 8.2 O ____________ ____________ _____ ______ _____. ____ _____ 3 ~0C 12,3 15.3 15~9 13.8 18.517.9 It is observed that, whatever the temper~ture of the test, the laundry materlal~ Al, Bl, Cl, ~1 and E
lm~roved the degree of whitenes~ with respect to the produot ~coordin~ to the prior ~rt; there wa~ obtained, after wa~hlng, a abrlc who~e degree of whitenes~ was ~uperior to that befor~ washing.

: ' ; ~ ' ' ' .
.:

2~2~2~

~est~ ~slng oxldlzed glucose syrups ha~;ng variou~ ~E.
Four examples of laundry Inaterlal~ according t~
the lnven~lon and denoted by Fl, Gl, Hl ~nd Kl were ~repared.
These four laundry materials wers dlffe~en~ from the prod~ct eccording to the prior art above disclosed by the ~ub~titution of the 32% representing the phosphate and the zeolite by 8% of phoxphate + 16S of zeolite + 8~ of an oxidized ~l~cose syrup, the saifl ox~dized prod~ct p~esent-ing respec~ively:
- Fl: a ~E close to 21 (I ~ 5.0 approximately) - ~1 : a ~ close to 38 (I ~ 8.8 approxlma~ely) - Hl s a DE close to 48 (I - 11 approxi~ately) - Kl : a ~E close to 60 ~I - 13.3 approximately).
The laundry material~ denoted Fl to Kl s~ow globally, for exampl~ ln oonneotion wlth washin~ test~
cerrled out at 60~, performance~ whlch are as remarkable a~ those observed wi th the prod~cts Al to El prevlo~sly di~olo~Qd~ in partlcular tho~e notlced for th- ~roduot Dl 20 whlch ~l~o com~ri8es en oxldl~ed poly~aaGha~ide content equal to 8% ~y wei~ht.

. .
,

Claims

1. Composition for laundry materials comprising at least one phosphate, at least one zeolite and at least one oxidized polysaccharide, the proportion of oxidized polysaccharide representing from about 5 to about 40% by weight of the total weight of the three constituents.

2. Process for the preparation of the composition according to claim 1, wherein, in a composition based on phosphate and on zeolite for laundry materials, a propor-tion of about 5 to about 40% by weight of those consti-tuents is replaced by an equivalent proportion of at least one oxidized polysaccharide.

3. Composition according to claim 1, wherein the oxidized polysaccharide is an oxidized di-, tri- oligo-or polysaccharide selected from the group comprising:
- the oxidized disaccharides comprising a terminal func-tion of the aldonic type.
- the oxidized trisaccharides, the oxidized oligosaccha-rides and oxidized hydrolysis products of starch, of cellulose and of hemicelluloses comprising a terminal function of the aldonic type, and - the mixture of the above said oxidized polysaccharides,

4. Composition according to claim 1, wherein the oxidized polysaccharide is a starch hydrolysate having a DE from 5 to 90 which has been oxidized or glucose syrup having a DE from 5 to 90 which has oxidized and whose acid index I, which is expressed in number of grams of carboxy-lic function per 100 g of oxidized polysaccharide, and which is given by the formula:
is from 1 to 20 and, preferably, comprised between 6 and 15.

5. Composition according to claim 4, wherein the oxidized polysaccharide has an acid index comprosed betwoen about 8 and about 14 and is obtained by oxidation of a starch hydrolysate or glucose syrup having a DE
comprised between about 35 and about 65.

6. Composition according to claim 1, wherein the oxidized polysaccharide presents a reducing sugars content less than 0.6%, preferably less than 0.1%, more preferably less than 0.05% by weight and still more preferably practically equal to zero.

7. Composition according to claim 1, wherein the oxidized polysaccharide is prepared by hydrogenation, notably by catalytic hydrogenation, of a starch hydro-lysate having a DE from 5 to 90 which has been oxidized or of a glucose syrup having a DE from 6 to 90 which has been oxidized and having an acid index I comprised between 1 and 20.

8. Composition according to claim 1, wherein the phosphate is a nono- or polyphosphate selected from the group consisting of orthophosphate, pyrophosphate, tripolyphosphate, hexametaphosphate.

9. Composition according to claim 1, wherein the zeolite is a sodium silico-aluminate (zeolite A).

10. Composition according to claim 1, comprising:
- a proportion from 5 to 40% by weight, preferably from 10 to 35% by weight of phosphate and, more preforably still, from 20 to 30% by weight of phosphate, - a proportion from 90 to 20% by weight, preferably from 80 to 30% by weight of zeolite and, more preferably still, from 60 to 40% by weight of zeolite, - a proportion from 5 to 40% by weight, preferably from 10 to 35% by weight and, more preferably still, from 20 .ang. 30% by weight of oxidized polysaccharide.

11. Composition according to claim 1, wherein the ration by weight between on the one hand zeolite and on the other hand the oxidized polysaccharide is comprised between about 0.5/1 and 4/1, preferably between 1.5/1 and 2.5/l and, more preferably still, close to 2.0/1.

12. Laundry material containing a proportion from 5 to 40% by weight, preferably comprised between 15 and 35% by weight of a washing composition comprising at least one phosphate, at least one zeolite and at least one oxi-dized polysaccharide, the proportion of oxidized poly-saccharide representing from about 5 to about 40% by weight of the total weight of the three constituents.

13. Laundry material according to claim 12, comprising a detergent agent and/or a surfactive agent and/or an antiredeposition agent and/or an oxidizing agent and/or a structural agent and/or an anticorrosion agent and/or an antifoaming agent and/or an enzyme and/or a perfume and/or a dye and/or a solubilizing agent.