CA2182629A1 - Detergent composition and method for washing using the same - Google Patents

Abstract

A detergent composition for laundering thin and contractive laundry made of silk, wool, etc. at home without fiber damage and a method for laundering using the same are disclosed. The detergent composition includes from about 15 to about 45 parts by weight of surfactant consisting of lauryl alcohol oxyethylene and coconut fatty acid alcohol amide, from about 15 to about 35 parts by weight of solvent for laundering containing normal paraffin and/or limonene, from about 25 to about 50 parts by weight of water, from about 0.3 to about 0.7 parts by weight of tetra-alkyl ammonium chloride, from about 0.2 to about 0.7 parts by weight of protease maintaining a titer at the pH of from about 6.0 to about 8.0, from about 0.3 to about 0.8 parts by weight of lipase, from about 0.3 to about 0.7 parts by weight of carboxymethyl cellulose and about 6 to about 10 parts by weight of butyl diglycol. After adding the detergent composition to a washing tank having a rotary blade, an appropriate amount of water is added to the washing tank while rotating the rotational blade to dilute the detergent composition. More water is added to the washing tank to adjust the water level to a level suitable for laundering and laundry made of wool or silk is introduced into the washing tank. The laundering is carried out by rotating the rotary blade to generate water flow.

Description

- - - - - -~UG 01 ' 96 il: 23f~M ~IF~ 181 P . 9 WO 96/l7052 l~C'~r/K1~9JA~0172 L~ rO~ SIT~ON I~D M~L~O~ FOR
~IAS~l~IG tJSI~; THE SAME

Back~ound of the llve~tion S 1 ~ield o~ the ~n~ention The pre~ent invention relates to a detergent co~position an~ a method for wa~hing u~in~ the ~ame, an~
more particul~rly, to a detergent CO~pOsitiOll Comp~is'hg ~n emul~ion prepared by emulsifying ~hr~e co3IIponents o~ a 1~ s~r~actant, a solvent and wat~r to an oil-in-wate,r state as a main compon~n~ for ~ashing a washing object made oi. si.lk or ~ool and a method or washing in a fully autc-matic washin~ ~achin~ using the sa~e.

2 Description o~ t~le Prior Art ~i~ers lik~ protei~-based fiber such r.~ woolen c~lotll, ~ilk good~, etc. an~ regenerated fiber ~3ch as arti-icii~l silk, ace~ate, etc., which are liable to ~1e damagc~ in an alkaline solution lose gloss du~ to t~e ~l~emical da~i~ge on the fiber ~ur~a~e an~ contract wh~n wasll~ng these usin~
conventional det~rgents in water. ~ccordi.n~ly, th~ undr~
made o~ ~hese fibers can not be laundered wi.th wate~r but should be laundered ~y me~ns o~ dry cl~ning usi.ng ~n or~anic solvent.
D~r clear~in~ is carried out by u~ ;.n~ petroleum -based - 25 solvents containin~ the light fractions in th~ kerosene or the hea~ f~ctions in the heavy nap~ltlla as a m~Lin component, hydrochlorocarbon solvents such as 1,1,1-~richloroe~hane, ~,l,Z-trichloroethan~, t~rlchloroethylene, perchloroethylene, etc. or normal para~fin ~olven~
3C con~caining surfactant and hy applyin~ a Inec~lanic~l me~ho~
at a laundere~. However, the conv~n~ior~ ry c~earling m~hod at a laund~rette has some defco~ ~'J follows Fi.r~tly, the main pollutants adher~t.~ to th~ l~undry a~e classified as ~at matters, prot~i.n m~t~ers and ~ter 3~ aoluble inorganic compounds. Through dry cleaning, ~nly ~he fat matters ar~ remo~ed ~nd the prot~i.n ~tters and the wQter ~oluble inorganic poll~tants are n~t.: removed cven 1 ~96 11:24R~ ~RM&~ Cf~ 81 ~ J ~ ~ 9 P- 10 ~ ~09Ct170S2 rcTl~g4laol72 through repeated laundering ~nd thus remai~ on the fiber.
Therefore, the laundry are still dirl.y ~fter the laundering .
Secondl~, s~n~e the lau~dry is wa~h~d with (~th~
laundry entrusted ~o th~ launderette, transfer of bacilli or pollutAnts may occur, ~hich is unsar~ ary.
Thirdly, ~nce the laundr~ should be c~ntrusted to the launderette, it i6 time-con6uming, i~onVerlient and expe~sive.
The fiber ~ama~e and ~ontraction phenomenon that appears when washi.ng protein-~ased fiber such ~s ~ool, ~ilk, ~tc. ~nd cellulose fibe~ s~ch as ~rti.ficial silk, acetate, etc. with ~ater ar~ explained ~s follows.
Since a conventional detercgent i.nclu~es 20-30 % ~y lS weight of 3ur~actan~ and ~n alkalin~ n7a~ri~1~ when t~le detergeht dissoL~s in an appropriat~ ~mount of water, ~h~
conce~tration of the surfactant reaches 0.~-0.3 ~ ~y weight which could provide the best ~ashiny effeci:. The pH at ~hi~
time re~ches 10-11. Washing using su~fact.aJl~ in an al~aline ~0 ~olution give~ a good performance. How~v~r, the pcp~ld~
bonding structure in the proteirl-based fiber ~co~es partially hydroi~ed into carb~xyl functi.on~l groups a~d amino ~unctional ~roups or t~c remaining fat matters ~r.e 108t~ there~y eliminating the glo~s of the fibe3~ and Z5 cont~acting the fiber du~ to a special. contracti~lility property of the w~ol fiber. The peptid~ borlding str~ ur~
also is hyd~olyzed in an acidic solutinn and results in f i~er danlag~ . The n~tural rinsing watP.r used cluriny laundering is acidic. ~he natural wat~er is a ki!-d o~
car~ona~ed water which ~aintains an e~uil.ibrium with the ~ar~on dioxide gas in the a~mosphere and k~eps the pH at 5.6 and thus dama~s ~he protein-bas~d i.iber.
Another phenomenon occU~ring ~t ~he pr~tein base~
fiber during wa~hi.ng and rinsing Usillc3 th~ convent:iol~a 3S detergent i~ th~ penetration of t~le washing wat~r or rinsin~ ~ater into pores ~these pore~ have a cap:llary shape formed by l.i~uating out ~at m~t~ers ~ille~ in fllrs of ~UG 01 '96 11- Z4f~ NRI~I&I`I~I b~5;~181 P. 11 WO ~J6/l'~(~52 ~ 1~3 2 6 2 9 pcrn~Rg~llnnl72 the animal~) ~n the ~iber t~ro~gh a c~pillary phenor~enon.
The penetrated ~ater dam~ge~ the inncr surfa-e of the pores of the fiber ancl contributes to the contrac~ion cf the fiber. Mo6t o~ ~h~ con~entional detergent~ contain ionic surfactant and electrolyte5 of high deg~ee and have a rela~ively great interacial ~en~ion. ~l`here~o~e, ~hese pene~rat~ into khe capillary of the woc~l fib~r throu~h th~
capill~ry phen~enon to promo~e the fib~ damage.
Accordinglv, a deterqent which enal~les domestic laundering of the laundry made of wool or silk has been required. In U.S. Patent ~o. 4,750,907 ~issl]ed to Heinz M.
Wi~sberg~, exampl~s o~ a detergent ~or laundering the laundry m~de of wool or silk are disc]osed. The dis_losed de~ergent~ includes a~ an anionic surf~ct~nt, prim~ry Cl2-Cl8 alcohols of sodium alkyl glycoletl~e~- ~uJ.~ate and so~il]m alkyl benzene ~ulfate as main componel~ts. Howe~r, ~inc~
anionic surfactant produces foa~ and lowcrs wa~llabilit~ and is no~ rinsed out after the washin~, a J arg~ amount of wa~:er is necessar~ for the rinsing Therefor~, watsr and ~0 t~e wool or silk ~iber com~ in contact wi~h e~ch other for a ~ong pe~iod and thu~ there is a prohzl~ili.ty of the fi~e:~
contraction. ~urther, anionic æur:E~ctan1: re~cts wi~h calcium ion in the n~tural wate~ to lower t~le washa~ility and to pro~uce insoluble calcium salt. to ca~e the pol lu~ion .
~ eside~s, de~tergents for domestic us~ for laur.de~ing laundry made of si~k ~ wool hav~ come into the n~arlc~t.
D~y-senka (t~ade ~ame) man~factured by Inte~ Orion Co., Japan can be illustra~ed as an ex~~ his E)ro~uct incl~des ~n em~lsifie~ emu~sion ili an oil.-in-water sl:ate as a main component., however, it i~l~ludes ani~nic Gur1.actant also as in the ~einz~ Paten~ and ~at.ionio surfactaTl~ as wel.l as the anioni.c ~urfactan~ together, and unde~;irably produces insol~lb~e fa~ matters. ~etailed c~mponents of the Dry-s~nka is no~ known wit~in the Fr~sen~ invt~nto~'s kno~ledge.
Accordin~.y, ~he inventors of th~ prcsent in~en~ion ~ 01 '~ 11:26RM -NR~ l P.l ~'0~6/17052 2 1 ~ 2 6 2 9 PCT~KR~4!00l72 made many ef~ort6 to p~event fiber damage ~nd fiber contrac~ion and to eliminat~ pro~ein-ba~ed poll~ltants prod~ced througil dry cleaning and water solubl~ inorganic pollutants and disco~ered ~hat ~ co~osite det~!r~ent S composition ma~ufactured by dissolving a non~ionic ~ur~actant and a proper solv~nt in water ~rld mixinc ~i.t}~
~iber softener, ~tc. could over~ome th~ defects produc~d through the ~onven~ional ~ashing with ~a~er an~ dry cleaning and thus the p~eRent invellt:ion has been o accomplishe~.

Su~mar~ of the Invention Acc~rdingly, an objec~ of the presell~ inv~ntion is to pro~ide a novel detergent composition whioh can be u~;ed in launde~ing laundry made o~ silk or wool by ~ea:~s of domestic washin~ machine.
~not~er o~j~ct of the present in~en~ion is to provide a ~ethod for laundering using the abo~e-~entioned det~rgent compo S iSion.
To achie~e the object of the present inveIltion, there is pro~ided an Qi~ -in-~ater em~sion-type dete~rgent composition comp~ising: ~
~a) from a~out 15 to about 45 parts ~y weight of ~a non-ionic surf~ct~n~;
Z~ tb) fro~ abou~ 15 to about 35 p~r~s by ~eight of a h~droca~bon 601~ent con~ainin~ a norma] para~in ~nd~or limonene for launderin~;
~c) from ~bou~ ~5 to abou~ 50 part:s by ~eight of w~ter; and (d) from 0 to about 10 p~r~s by weig~t of an additional agen~.
More partic~larly, a detergeIl~ compo~i~ion acc-~rdi~g to the present invention comprises:
(a) fro~ a~out 15 to ~bout ~5 part:s hy ~eight: o:~ non-3S ionic sur~actan~;
(b) ~rom a}~o~t ~5 to about 50 p~rts b~ weicht o~
wa~er;

~ 01 ~ r~ 181 P.2 -W096~705z 218 2 6 2 9 PCT~R94~00172 (~) from about ~.3 to abo~t ~.7 parts by weight of tetra-alkyl ammonium ~hloride;
td) from a~out 0.2 to a~out 0.7 parts by weight o~
protease maint~ining a titer at the pH of from ~.0 tc- 8.0;
c(e) from a~out 0.3 ~o a~out 0.8 parts by weicht of 1 ipase;
(f) fro~ sbnut 0.3 to about 0~7 part~ by weich~ of carboxymethyl c~llulose; and ~g) rom about 6 to a~out 10 parts ~y weight ~f butyl di~ly~ol.
To accomplish another object o~ the pre~ent inve~tion, ~here is prov~ded in accordance with the present inv~ntion a method for ~aunderihg la~ndry m~de of siJ.k or wool using an oil-in-wate~ emulsion-type de~ergen1. compo:,ition compri~ing from about 15 to about 45 par~ by ~elclht of non-ionic surfactant, from about -15 to a~out 35 pa~.~s ~y weight of hydrocarbon solvent containinq normal pa:c~fin andfor limonene for launderi~ rom a~out 25 to ab~ut 50 pa~ts by ~eight. ~f water and from 0 to a~out 10 p~:-ts b~
~ei~ht of additioIIal agent.
After adding ~hc detergent ~mposition to a w~shing tanlc havin~ a ro~ary ~lade, t~e de~rgent composit;Lon js diluted b~ intro~ucing an appropriatc first cunount of water in' o the wc~shing tank, while rotating ~h~ rotary bl~de.
25 Then, the amoun~ of wat~:r is adjusted to an app~opriate second amount ~or ~aundering by in~c~oducinq mo~e wa'cer into the ~ashing t~nk and the laundry rnade ol silk or wool is introduced into the washing ta~k. The r~tary blclde is rotated to generate an appropriate water flo~ for 3~ la~nde~ing the laundry.
The detergen~ composition o~ the prescn~ inve~tion is made ~ using an ~mulsion as a ~nain com~on~ and prepared ~y ideally e~ulsifying three co~ponents of alcoholic non-ionic surfactant, normal para~in and li.mon~ne as a special so].vent, and an appropriate amount o~ w~t~r.
Through empioyi~g the det~rgent ~ompvsi.tion of ~h~
pre~ent invention., high grade clothes made of wool, silk, ~ 01 ~ 27~ ~ 181 P.3 wo ~1170~2 21 8 2 ~ 2 9 pcT~9~lonl72 and regenerated cellulo~e-based -~ibe~ which had been conventionally ~aGhed by d~y cleanirlg c~an be advantageously laund~red by mean~ of a do~e6tic ~a~hit~g ma~hine at home.
Additional agents ~ch a~ a fiber softener, an antis~atic agent, a protea6e, a lipa~e, a ~i.spe1-Sir.g agent, a thickening agent, e~c. may be added to the detergent compo6i~ion. Th~ protein-based po11u~ants whi~h could not be removed t~rough dry cleaning, can ~e remov~d by a~ding a protea~e, and water solu~le inorgani,c poll~tants can b~
re~ed through ~a~hing with water i~leluded in the det~rgen~ compo~ition. Noreover, fatt~ acid glyceride pollutants secreted ~rom the human skin al~o can ~e mor~
cle~nly and ef~ec~ively remo~cd b~ appl.ylng an em~lsion of 1auryl non-ionic ~urfactant ~nd soluen~ -han by th~ ~.ethod 1~ of applying an~ ¢onventional ~urfactan~ or solvent through dry cleaning.

~rief PescriPtion 0~ ~he Drawinqs The above objects and advantagcs of t~1e p~esen~
~a invention will become more apparent by describiny in detail ~ prefer~ed embodime~t ~hereof with r~f~rence tc, the attached d~awing~ in which: I
FIGs. lA and lB a~e a f~ chart: for il~s~rating me~hod~ fo~ lau~dering according ~o an embodimen~ of th'e ~ present inventi.an.
F~G.2 is a biock diagram ~o~ showiny ~ eonstituti.on of a washing ma~hirle for ~arrying out the method or the present invention.

~0 Detalled DescriPtion of the Invcntion The present in~en1:ion will be de ;c~t.-ib~3d iI~ de1~2il below .
The de~e~g-~nt composition o~ the pr~sen~ invention i~cludes from abou~ lS to abou~ 45 p~r~ y wei~ht v~ ~
~5 non-ionic surfactant, from about 15 to ahollt 35 parts by w~ight of a h~ arbon solv~nt con~ainin~ no~msl pa~affin andfor limoner~e ~or laundering, from a~u~. ~S to abou~ 5~

~UG 01 '96 11: 27fll'1 -Nf~r~ 1181 P. 4 ~ W096/t70S~ rCT~4~nl72 parts ~ weight of w~ter a~d from 0 to about 10 parts ~y ~reigh~ of additiG~al agents.
The deterg~.nt composition of the present in~e-ntion includes from a~out 15 ~o about 45 part~ ~y weight of a non-ionic 6urfactant. As examples of th~ non--ionic 6urfactant, oxyethylene of lauryl-based alcohol containing 1~ carbo~s and co~onut fat acid ~lcohol amide of alkanol amide-ba~ed sur~ctant may be mentioned In the det~rgent composition of ~he present invention, ~rom about 15 to About 45 parts by weigh~ of 100% laury.l--based surf~lctan~
which has hi~h washing power is pre~erably e~ployed. When the ~rfactant i~ dil~ted in water to ~he concentrat:on of l~/Q, the con~entration o~ ~he ~u~fac~ant becomes 0.2-0.3 % by weight which i~ zn opti~al concentratior~ for l~undering. A~ ~hj.s concentration, th~ damaye to the sof~
fiber~ can be preven~ed and the ~a~hin~ c~fect c8n be maxi~ized, ~hlle minimizing skin damage.
The lauryI-based non-ionic su~factant has benef;ts o~
prod~cing small amounts o ~oam, not ~ecting enzyme activit~, having stron~ s~rface activity ~n~ st~.ongl~
penetrating in ~ diluted 601ution Especislly, thlG
surf~tant is not ~is~o~iated into ions in a~l a~lueo~s solution ~nd has good effect of removin~ ~atty pollu1;ants.
Moreover, the sur~actant largely lowers i~l~erfacial tension and optionally adju~ts t~e equilibri.u~ between hydro~hilic and hydrolipi~ 4unctional groups At this time, if the amount o~ the surf~ctant oxyçthylen~ o lauryl ~lcohol and alcoho1 amide of fatty acid is ~ess than abo~t 15 parts b~ wei~ht, the suff:i~ient surface activity can not be obtain~d, ~Jhile if the ~1~o~l~t exceeds about 4~ parts ~y wei~h~, the ~ashability is undesirably lower~d owing to an exo~sivo surf~ce act.ivity.
Therefore, th~ amount of the ~-lrfactant ~ n~es ~ro~ about lS ~o ~bout 45 p~rts by weig~t b~sed on thc to~al a~olnt o~
~5 the detergen~ compo~ition and preferably r~nges fro~l about ~0 to about 40 parts by ~eight. A~ t~is 'im~, the amo~lnt of lau~yl alcoho~ o-xyeth~le~e in the non-ioni~ sur~actan~

~UG 01 ~96 11:28R1~ ~5;~1el . p. 5 ~18~29 - Wos6/l70s2 PCT~/00~7' ranges preferabl~ fro~ about 12 ~o about ~o parts b~ ~eight and more prefe~ably from about 15 to about 23 paT-ts by weight, and the amount of cDcorlut ~atty acid alcohol amide in the non-ionic surf~ct~n~ ranges preferably from about 3 to about 15 part6 b~ weight and mo~e preferably fro~ abo~
5 to about ll p~rts by weight.
While the conventional detergent includes as su~factant an anioni~ surfactant, the d~tergent composition o~ the pre~ent invention includes only ~ non-ionic 1~ ~urfactant. Therefore, ~h~ de~rgent of ~he p;-esent.
invention has le~ of a chemical ef~ec~ and a relati~e low su~face activity, which reduces th~ pene~ration in the ~2pilla~y of the wool fi~er to prevent the damaye ~f the wool fiber.
lS The co~position of the present invellt.ion inclu~es at least one ~olvent of normal paraf~in solvents which contains 9-l~ carbons and is use~ as hydrocsr~on--based solvents and unsatu~ated rlaph~ene-~ased solvents. ~,s for normal paraffin, n-decane ca~ be pref~h.ly used. Al.: this time, the amour.~ of hydrocarbon-based solven~ range~s from about 12 to ~bout 36 partfi by ~eight aIl~ p~eferably from abou~ l~ to abou~ 30 parts by wei~ht.
As for the uns2turated naph~elle-ba~eci so.luents limonene which ;.~ extracted from o~angc epi~ermis aII~ i.s~ a 25 ~ natural aromat:ic uIl~tura~e~ naphtc~le ~;ol.v~nt, can }~e illustrated. ~ one~e further increases was},ability of the fat ~atters. ~ur~her, the addition of naphtene-based so].ve~ts incr~a~es the ~a~hability of normal paraffin.
Therefore, t~le composition of the prc~ent invention 3~ preferably empl.oys normal paraffin together with unsaturated napht~ne-~ased ~olvents. Mixing w~ight rati~ of normal para~fin to u~saturated naphtene solven~ ranges ~rom ~bout l.S to a~out 2.5, and is preferably ~out ~ f the mixing ~eig~t ratio of normal paraf~ and li~nonen~
deviates from the above ratio, the w~shability of normal.
p~raffin solven~ an~ the fat washability may decline.
At thi.s t~, if the a~ount o~ the rlormal paraffin f~UG 01 '96 11:2Bfll1 -N~M&NRM0Z75531E11 P.6 ~182629 ~096117052 rcT~ no~7z solven~ is less than abo~ 8 parts by weight, ~he wa6hability o~ ~le fat is low~red, while if t~e ~ount exceeds abou~ 2~ parts ~y wei~ht, th~ cost incrEases. I~
the amo~nt of the unsaturated naphtene ~olvent limonene is less than abo~t 4 part~ b~ weight, the washability cf the nonmal paraf~in ~olven~ i6 lowered, whil~ if the ~mount e~ceed6 a~out l~ parts by wei~ht~ t~e c06t incr~a~e.~.
Therefore, the ~nlount o~ the normal p~raf~in r~geC rom about 8 to about 24 parts by weight, and E~refe~ably from about 12 to a~out ~0 parts ~y weig1lt. The amo~:~t of limonene ~anges ~rom abou~ 4 to about l~ parts b~ weight, and prefera~ly i~ from about 6 to abo~ lO par~s ~y weight.
~he de~ergen~ composition of ~he pr~sent inv~:ntion forms an oil-in-water emulsion throu~h ~ixing thre~ i componen~s o~ lauryl alcohol-based noI~-ionic 6ur~actant, 6p~cial solvent prepared b~ mixing nor1nal pa~affin ahd limonene in a ~i~ing ratio of about 2;1 in parts by w~ight, and an appropria~ amoun~ o~ water.
l'hus, the detergent composi~ion vf the p;~esent inv~ntion enables dome~tic laundering of a washing object made of wool, ilk and re~enerated cellulose ~ib~r using water, which was conventi~nally carri~d out throuc~h d~y cleaning. ~ater ,,oluble inorganic ma~eri~l which could n~t be re~oved th~ough dry cl~aning, coul~ b~ complete~y remo~ed ~hrou~h la~ndering using water. ~or~over, stronger ~ashability of fatty acid glyceride fa~ty pollut~nts whic have been ~ecrcted from hum~n skin and ~come the ~ain pollutan~s on t:h~ fi~er, can be ob~ained when compared ~ith the launderi~lg ~ing water and the con~n~ional surfactant 3Cs or the d~ cleani1lg using a solvent ~ rther t ~he de~ergent compo6ition eccordin~ :o the pre~ent invention i~ p~epared ~y cmulsif~ing in wa~er alcohol-ba3e non ionic surfact~nt and a p~rticular organic solvent such as lim~nene, normal p~raffin~, etc. more than 99 5 % by weight of ~hich i~ ~iblogicall~ decompo~ed is waste w~t~r.
In additi.on, the detergent composition of the Fresent f~UG 01 ' 96 11: 2~M -NRM&NRI`10Z 7553181 P . 7 ~182629 .
wo 96117052 ~C~JKR94t00l72 invention includ~s from about 0 3 to about 0 . 7 pa~-t~ by weigh~ of t~tra-al~c~l a~nonium chloride ~s a fib~r so:etener and anti~tatie agent. If the amount c,f 1;he agent ic; le~s than about 0 . 3 part~ by weight, a ~ufficient fibe~r 5 softening and anti6tatic effeot could not ~e obt~ined, while if th~ amollnt eXceed6 0 . 7 par~6 by weight, the f ib~r ~econ~e~ too 60f. and the c06t in~r~a~e6.
The dete~gent composit;ion of the pre~ent inv-~ntion prefe~ably compriee~ from about 0 . 2 to ~bout 0 7 pa:-ts by 1~ wej.ght o~ prot:ea~e. The protease is c:ommercially ava.ila~
~nd ~hould mainta n a 'cite~ at the pH of ~ . O to abou-_ ~ . O .
Generally, ~ccept for so~e wat:~:r sol~ble p: otein pol lutants, u~arious protein-based pollut~nts which ~emair in la~ndry such as fallen off ~kirl piec~s, blood s-:~ins, 15 protein-ba6ed :~ood, rnold, e~c. are har~Jy rcmoved t~:~rough dissolving o~ di.spersing in organic ~io l v~n1; or t;.lrou~h reac'cion of suractant, ~:an be advant~ay~o~lsly remo~ed b~
u~ing enzy~ne . By ~d~ing from a}: out 0 . Z to about 0 . ,' ~6 by weight of protea~;e whi~h is a protein de~omposing ~anzyme 70 for decc)mposiny the protein to wat:e~ solu~le amino acid, the proteirl-baEied pollutant~; can be compl~tl3ly remo~ed ~7y t~l~ action o~' tne enzyme. I
At this time, if the amount of t:he protease i!; le~;s than 0.2 part~ by weight, the enzyme action is so weak th,at ZS ~ E7~otein decompo~ition is difficult, w~lile if tlle ~mo~n~
exceeds 0 . 7 parts ~y wei~t, it is not cconomic .
The deterg~t composition o~ the p- e~ent 1 nv~ntion preferab~y contains from about 0. 3 to about 0 . 8 p~:.ts by weight of ~ipase. ~ipase is an enzyme ~hich decompos-s fat 3C in1:o gly~erol and fatty acid llllerefor~ 7 adding Lipase~
to the dctergent compositiorl o~ the pres~nt. invention, the~
r~moval of th~ fatty pollutants can be prollloted. ::f the amoun~ of the 1 ipase is less than 0 ~ 3 p~rt~ by weight, ~he decompositic~n of the fat is diffi.cult, wl~i.le 1~ the 3mounl:
3S e~ceeds 0 . 8 parts by weight, it i~ n~,t cconomic .
~ he det~rgent co~nposition of the presen~ invention contains f rom a~out 0 . 3 to about 0,. ~/ par t s by wei~ht of lû

RUG 01 ' 96 11: 29R~1 NRM&NRM027553181 P .13 ~18~629 WO 9GI17052 rCrn~94rO0172 carboxyl~cthyl cellulol3~ as a dispe~sing agent. The disper~ing agent promotes the sep~ration of the pollu-an~s, while preventing re-adherence of the ~ollutants ~o the fiber or washin~ tank, to the drain hose during dr~ining o~
to the dit~h. This agent al~o play~ somewhat a~ a thi~ rl; ng agent.
The detergent compo6ition o~ the pr~6en~ Ln~ntion contains from a~out 6 to 10 part~ by w~ig~ o~ buty~
diglycol as a ~hickening agent. ~he added Lhickening agent lo heightens vi6co~ity of the content alony wi~ imp:o~ing visual ef~ect. If the amoun~ of the thickening ag~:nt is less th~n abo~t ~ part~ by weight, the vi.sco~it~ increasing effec~ can no~ ~e obtained and i~ th~ amoun~ exceeds about 10 parts by weig~,~, the viscosity becom~ too high so it is not ec~no~ic.
The ~e~ergerlt composition of the preserlt invention is strictly adju~ed to th~ pH of ~.l, i.e. neutral and is applied to ~he 'aundry in a dispersion ~ta~e of ~n oil-in-water emulsion to lower the amplification ~ he capi~lary 2~ phenomenon due to ~he inte~facial tension decrease.so as to reduce the ~iber damage.
Surfactant contained in the general deteryent ~c_ive~y ~eacts in an ~lk~line solution. ~owe~er, for the det~3rgent composition of the present in~ention, thou~h th~ solutiQn 25 ~ maintains the p~ of 7.1, i.e. neutral, prot~in fiber~amage can be prevented and inc~ea~¢d washing ~ffect can be ohtained throug~ the complex rea~ion of surfactant with so~vent when compared with ~ashing using an al~aline ~olution.
~0 A method for l.a~ndering laundry ~d~ of silk o.r ~ool using the deter~ent composition in an au~ol~la~ic W3 hing m~chin~ is pro~ided in ~cordanc~ wil:h the pre~e~t;
in~ention.
The d~tergent composi.tion i added to a washing tank 3~ ha~ing a rotary blade and then an appropriate amount of water is i~troduced while rotating-the bl~d~ in the ~ashiny tank to dilu~e th~ det~rgent ~ompositiorl. More ~a1;~r i6 ~ 01 i~ lli~ ~M~;f~ 181 P-9 WO96~l7052 2 18 2 ~ 2 9 PCT/KR~ no~n added to the ~ashing tank to adjust ~a~r level ~o an appropriate amount for launderin~ and ~hen l:he l~undry made of wool or silk i~ introduced into the washing tank. The la~ndëring i8 carried out by rotating the blade to generatç
wat~r ~low.
FI~s. lA and 1~ are ~ flow chart for schemat:cally illustrating a was~ing ~ethod in accordance ~it~ one embodimcnt of the pre6ent in~ention and ~'IG. 2 is a block diagram showing a construction of a waLhing machire for carrying out a method of the present inven~ion.
Hereinaf~cr, using the detergent co~posi~ion as ~Ibove, a me~hod for ~shing a washing o~ject m~e of wool or ~ilk ~ill be explained~

Method for wa~h~n~ th~ la~ndry made ~ wool (w.~shin~
~roc~ss in a drv c~.~anina mo~e) After t~e power of ~n wa~hing m~cl1ine .is switc~ d oll, a d~tergent compo~ition is introduced in a w~sl~ing tank lO0 an~ a ~election button for a dry cleaning m~d~ is pushed o~
~ key array part 170. When micom 200 reo~ e~ the signal for selectin~ ~he dry mode from key array part :.70, a method for perfor~in~ a dry cleanin~ wa~in~ course is performed to ~ash ~he ~ aundry.
More particularly, in ~ selecting s~ of the washing ~5 mode, key a~r~y par~ 170 ~ends a dr~ modc sel~tion si~rlal to micom 200 (~3), whi~h j~dges wheth~r t~l~ w~ter lev~l re~ches the firs~ level (Ss) and t~len ~en~s a wat~
in~roducing order ~igna~ to driving part lfiU to oper. w~ter irtrodu~i~g ~lve 120 (S6). Then, washing ~ater is 3~ intro~u~ed into washing tank 100 in a sm~l amount ~.hrough water introduci~lg pipe.
When ~he suitable amount of wat~r for dilutiny the detergent is int~oduced, micom 200 drivcs mot~r 150 via driving pa~t lfiO for a pre~etermin~i ti.me, to t:hereby 3~ ~ota~e rotar~ hla~e l10 at a lo~ r~tatiOll ~peed. Due to the rotation of rotary blade 110, a water strea~ i5 ge~le,rated to dilut~ t~ eter~en~. Simul~alleously, ~ predetermined ~UG 01 '96 11:30Rlt1 ~1Rl~b2~:~s~181 P.10 ~V0 96/17052 2 1 8 2 6 2 9 PC'rlKRg~l/0(~72 amou~t of water iB seque~ti~ introdu~ed into w~6hing tank 10 0 ( S8 ) ' When the 6uitable a~unt o~ water ~at thi~ ~im~ he co~centration o~ the detergent i~ ~bou~ a.sg~:~ ) is introduced into washin~ tank ( S7) and th~ ~ilution c~$ ~he detergent is compl~ed, s¢nsor 140 ~enses ~ water leve].
enough for performing the washing step of the wilshing o~ject and 6ends a signal to micom 2()~. 'l~hen, micc1m 200 send~ a water in~oducin~ ~top order ~ig~l and a mot~r rotation stop order &i~nal to driving part 160 (S~). D;--iving part 160 clo~es ~ater introducing valve 1~0 in acco:~d~Dce wi~h the wa~er introducing stop ord~r si.~n~l and ~ops mo~or 150 so th~ ro~ry blade 100 does not rotat.e any more. Al60, mico~ 200 judg~s t~at the w~hin~ mode is a dry mode (S10), and sends a ~i~play signal. to ~isplay pa;.t 1~0 ~o th~t display part 180 d~splays "dry" ~$11) and se~nds a buzzer ~ound generating signal ~o sp~a~r 190 t~o g~nerat~ :
a buz2er sound on spea~er 190 (S13~ When tho user hears the buz~er sound, he introduces th~ laundry inlo washin~ tanlc ~0 100 and then p~shes a 6tart bu~ton in key ~rray par~ 170.
Micom 200 judge.s whether the start ~ignal i.~. inpu~te~ from key array part i70 (Sl~). When micom 20~ senses ~he start signal, a s gna~ for pe~formin~ the wash1ng step is t~an~mitted to drivi~g part 160 to start t~le dry c~eaning ~S - washi~g course. Within one minute, wh~n ~le star~ signal is no' inp~tted ir. micom 200 from ke~ arr~y p.~rt 170, mi~m 200 ~ends a buzzer ~ound generating si~nal to speak~r 190 again to generate ano~her buz2e~ so~nd (~15 ) At the 6*ate that the washing o~ject: is in washing 3~ t~nk 100, when ~he ætart signal i6 ap~.lied, drivin~3 part 160 drives motor ~o so that rotary ~lad~ ~1.0 rotates right and left for a ~redetermined time . 110l ~ particula~ly, ~otary blade llU rotates in the ri~ht direction for about 2-4 second~, i.s st~ionary for abou~ S-G ~econd~, rotates 3~ in th~ le~t dir~c~ion for a~out 2-4 s~onds alld t~en is stationary for ahout S-6 second~, Whi~:]l as one cy~J~ i~
repeated f or a pr~determilled time ( ~or ~x~3mpl~, about s ix RUG 01 ~96 11~ M~ lel P.11 .. . . ..
21~2629 WO ~6117052 rcr~Rg~on17~

minu~e6) to ~a~h the washing object (S16).
When the w~hing ~tep is completed, ~icr~ 200 sr~nd~ 2 water dr~in ord~r 6ignal to driving part lfi n, which opens water drain v~l~e 130 to drain thc wa~hing water from 5 wa6hing tan~ 10~ throu~h a drain ho6e When the wacer draining i~ completed mico~ 200 sends a water introduoi.ns order signal to drivi.n~3 E.7ar~ 160. Then, wate~ d~ain valve 130 i~ closed and watcr in~roducing valve 120 is opened to tnereby in~roduoe a new w~shing ~ate:- into w~6hing tank lO0 which i~ 6~itable for rin6ing th~ w~6hing o~ect. When the water introduction is ~inished, wat~r introdu~ing valv~ 120 iB clo~ed and motor 150 is dri~en to ~otate rotary blade llO fo~ a p~edetermined tilne to g~nerate a water stream s~itab~e ~or rinsing the w~ashing objeCt (S17)-The wate~ stream necessa~y for t~l~ rinsing st.ep isgenerat~d in ~ , s3me manner as i.n thc was~lirl~ s~p. That i~, rotary blade llO rotat~s in the ri.gh~: direetion fo about 2-~ ~econds, is stationary for ~lbout 5-~ secon~s, rotates in t~.~ left direc~ion -for ~bout 2 4 secollcls and then is station~ry for about 5-6 seconds, which as one cycle is repeated continuously for about ~o minutes.
'~his rinsiny ~tep is performed ~wi~e so tllat ~;~l t~e cont~minants (stain~ and detergen~) r~m~ining on ~e ~5 - waslling objec~ .~e re~oved.
When the rinsin~ st~p i5 compl~t~d, lnioo~ ~.()0 serlds a ~ater drain order signal to dri~ing pa~ 160 to open water d~ain valve 130. Then the washing water remaining in wa~hing tank lO0 is dr~ined, and a dewat~rill~ step ~-,arts.
3~ In the de~atering step, ~icom 200 ~o~bin~s rota~y ~la~e 100 witll ~ashing tank 100 mechanicall~ and t:hen d~ives ~otor 150 to rotates wa~ing tank at a rotation speed of a~out 100 ko 150 r.p.m (S18).
The dewatering ~t~p is performed ~y rotating w.3shing 3~ tank 100 in th.e left or right directic)ll for abo~.t ~-~seconds, ~tilling washing tank lO0 for about 5-6 se_ond~, repeating ~bout seven times a process compr.ising the s~eps 1~

~UG 01 '96 11:3ElRM ~NfP~5;~1E11 P iZ
~182629 WO ~C/17052 rCTt~ll9~/00172 of i)rotatin~ washing tank lo~ in t:lle left: or ~igh~
direction for a~out 2-3 ~econds and ii)~tilling ~2~hing tank ~00 for abou~ 5-6 second~, and then rotatin~ ~shing ~ank 100 in the left or ~gh~ direction ~or ~ou, 1-3 second6 When the dew~tering step is complete~ ~o finish the washing of thc w~shing object, micom 200 gen~rates a ~uzzer sound via speaker 190 ~o tha~ the u.ser may no~e tha~. This finishe~ the w~slling method for washin~ the washiDg cbject 1~ made of wool.

Wash~n~ method for washinq the laun~rY made of silk (silk mode w~hinq Droces8~
Usin~ the washing method as sho~ in ~IGs. lA ~nd lB
and the washing machine as sh~wn in ~G 2, ~h~ wc.shi~g process for the laundry ~ade of ~ilk i5 performed as follo~s.
A deterge~lt c~mpo6ition accordinc3 ~o ~he prese~nt.
invention suita~le for silk is ~ntroduced in ~n clmount suitable for wa~ing the laund~y (S7) and tl~en a ~utton for ~ele~ting a ~ mode in key arra~ part 17() i.s pu~hed ( ~2) ~
When micom 200 recei~es the ~ignal for s,electin~ the silk ~ode from key array part 170, a method ~or performin~ a si~.k washing cou~-se i~ performed to w~jh tho laundr~ made of silk.
More par~icularly, in a selec~i.ng ~.ep o~ ~he washing mode, key arra~ part 170 sends a silk mo~e s~.1ectio~ ~3ignal to micom 200 (S3), ~hich judge~ ~hether ~he w~ter level rea~hes the fir~t level (S5) and send~ ~ wat~r introducing order signal ~o ~ri~ing part 160 to operl water intro~lucins valve 1~0. Then, washing water i~ i.ntrocluccd into w.~shing tank 100 in a s~a11 amount throug~l water i.ntro~ll3cin~ pipe 6) When the ~uitab1e amoun~. of water ~r~r di~utirlg the detergent i~ introduced, micom Z00 dr.ives nlotor 1~.0 ~ia driving part lG0 for a predetermin~d time, to t:.~er~by ro~te rotary b1ade 110 at a low rot~tion ~~ed. ~ue to the ~UG 01 '96 11: 31RM ~ 1&r~ s;~ P. 13 ~182629 wo ~GIl7ns2 r(~/l~R9'~ 0172 rotatic~n of rot~ry blad~ 110, a water stre~m is gen~:rated to dilute the detergent (S8~. ~im~ltaneousl~, a predet~rmined amowlt of water is sequentiall~ intrc~duced in~o washing ~ank 100.
~en the sui~able amount of water (at this ~im~, the concentra~ion of the deterg~nt i.s about 0.5gJl) is introduced into washing tank and the dil~tion o:- the detergent is completed, 6en~0r 140 sen~ a water le~l enough for pe~-.ormiIIg ~he washing ~t~p o~ ~he wc~shing obje~ and send~ ~ signal to micom 2~0 ts7) Then, ~icom 200 sends a ~ater introd~ing st~p ord~r si.~nal and a motor rotation stop order si~nal to dri~ing ~ar~ 160. Dxiving part 160 cloees ~a~e~ introd~eing valve 120 i.n ac~o~dance with ~he water in~roducing stop nrder si-~n~. and stops motor 150 ~o th~t rotary blade 100 do~ n~ rotate an~ ore (~9) ~lso, micom 200 ~udges that ~he washirly ~ode i8 ~3 silk mode (S10~ and send6 a display signal to display part :.80 SO
l-ha~ display part 1~0 displays "silk" (S12) and sends bu2zer sound gencrating si~nal to speak¢r 1~ n to gerle~ate a buzze~ sound c~ speaker 190 (S13~. Wh~n ~e user }:ear.s the ~uzzer sound, he introd~ces the la~ndry made of sil~: into wa~hing tank ~0 ~nd then pu~he6 a sta~-t Dutton in k-y array pa~t 170. Micom 200 judges wheth~r 1:he ~tar~ ~;ign~l is inputted from key ~rray part l~D. When mic~m 200 ~iense~
~5 ~ the 6tart signal (S16), ~ signal or performi.ng th~ welshing step is trans~it(~d to driving part 160 lo start ~he silk washing oou~se. wit~ olle minute, when th~ s~art sigllal is n~t inputt~d in micom 200 from k~y ar~a~ pz~t 170, micom 200 s~ndG a b~z~r sound generating siy~lal to speaker 1~0 ag~in to generate another b~zzer sound (SlS).
A1 the st~e that t~l~ washi~g o~ject i~ in ~lshin~
tank 100, ~hen th~ s~art signal is apl:~li.ed, driving part 160 drives mo~o~ 1~0 50 ~hat rotary bladc llO rot~tes ~i~ht.
and left for a ~redetermined time. Morc particu:Larly, rotary blade llO rotates in the right d~rection for about 0.3-0.5 second~ stationary for a~ 5-6 secon~s, rotates in th~ le~. di~ection for ab~ut 0.:~-0.5 ~econ.~s and 1~

RUG 01 ~96 11:31RI~1 -NR~ r~ 181 ~18~629 P.14 - U'O 96ll7052 P<~lKR~4/llnl72 then is sta~io~la~y for about 5-6 second~ hich as one c~cle is repea~ed ~or a predetermined time (for example, about ~ollr minut~s ~ to wash the washing ob j ect ( S~6 ) .
The wa~hing object made of æilk doe~ rlol: 6ink into the 5 ~shing water bu~ flo~s at an upper po~tion of the ~ash~ng water. In the conventional washing machil~e, t:he ro~ating ~a~er stream iB gene~te~ regardless ot the kinds o~
fabrics of the washing ob jects . In thi.s case, ~hen the ~otating water i.:; genera1:ed for a lony time, the w~shing 10 object sinks due '~o the rotating water stream to c-~me in COIlti!lCt with rotary ~lade 110 or wit~ the bottom por~ion of wa~hing tank 100. ~he~efore, the washing object is danaged.
However, in the pre6ent embodiment, ~otar~ lade is rotated for a}~out 0 . 3 to O.S seconds . Then, t~e ~ashing ob jec'c lS sln~cs to the lower portion of the ~a~ihing water and is whshed due t~o l:he rotational ~ tion force. However, since the watcr str~:s~ll ic genera~ed for a short time, the ~3shin~
object does not come in contact wit:h ro~ry hlade Llo or the bo~tom of wa~hing tank lO0 although the washing ,~bject ~0 si.lllss into th~ w8shing wa~er. Therefo;re, the washing object is not damaged.
After rc~a~ing rota;ry blade llo ~or about O . 3~0r 5 seconds, rotary blade llo i~ stationary for abol3.t 5-6 seconds. ~t this time, the pressure g~ne;r~ted by the 25 - rotating wate~ stream i~; r~duced- and the washing ~bjeçt which has sunk due to the rotating ~ater it:ream ri!;es to th-s surfaces of the ~a~2hing ~lrater.
A~ this state, rotary ~lade 110 rotates in the opposite direction to generate a rotat.i.n~ water .,tream 30 ag~in. Then, ~he wa~hin~ object sink~ aga;n and is ~dashed due to the rotat:i..ng friction forc~e of Lhe water stream.
WheTl the wai~ling ~tep is complet~d, micom 200 s,~nd~ a wate:~ drain order signal to driving part 1~0, which opens wate~ drain l~ralvc 130 t:o drain the Wa~;hi~l~ water frO~I
35 washing tank 100 ~ hrc~ugh a drain ho~e.
When the wa~cr drainirlg is completecl, Inicom 200 send~.
a watcr introduc~ing order sign~l to dri.ving part 160 Then~

fWG 01 ~96 11:31R~ -NRM&r~ 1 P. 15 2182G~9 - ~0 ~6/17052 1~ 94l00l72 water dr2i~ valve 130 i~ closed and water introducing ~alve 120 i6 opened to the~eby introdllce a new washing water into washing tank 100 which is ~uitabla for rinsing the washing object. ~hen the water intr~duc1:ion i~ finished, ~ater S int:coducing valve 120 i~ clo6ed and mo~cr 150 is dri~ien to ro'cate rotarS~ ~lade 110 for ~ pred~t~rmined tinle to gene;rate a ~ater ~tream ~llitable for riIlsing the wa shing object. The water 6tre~m neces6a:ry i~or th~ ri.nsing st.ep is generated in thc same manne!r as in the wa~ h i n~3 ~;tep . Th~t 10 is, ~otary blade 110 ro~ates in t:l~e right di~-ection for about 0 . 3-0 5 s~conds, is sta~ionarSr ~or ~bout 5-6 sec.onds, ro1:ates in the lsft direc~;ion ~or about 0.3-0.5 seconcls and then is stationary for a~out 5-~ secondci, which as one c~rcle is repeated continuously for about two minut~:s ( S17) .
This rinsin~ step is pcrformed twioe so tha~ a~ 1 the contaminant~ ( fitaj.nEi and dete~gent ) r~m~ ing or th~
washing object ~re r~moved.
When the ri~lsing step is cnmpl~ted, nli.conl 2()() sen~l~; a water drain orde~ signal to driving part 160 t;o open water 20 drain valv~ 13n. Then the washing w~ter remainillg in washing tank 100 i~ drained, and a dewatering step st.arts.
In ~he dew~tering ~tep, micom 20~) combines ~otar~y ~lade lO0 with washing tank iO0 me~:nanic:~lly zlnd then drives motor 150 to rotate washing tank ~t a ro~ation speed 25 - o~ a~ou~ 100 to 150 r.p.m.
Th~ c3ewatcring st:ep is pe~orme:d ~ rotating w.,shing t~nk 1.00 in the left or ris~ht di.rection I~or ~bout 3- 5 2second~, stilling wA~hin~ tank lO0 for ~bout 5 ~ ~ sec:on~s, repeating about s~ven ~imes a process c~mpl i.sing the st~p5 30 c~f i ) rotatiny washing tank lO0 i.n the left or right dire~tion for Qbout 2~ ?~ seconds and ii)~jti.llin~ w~shing tank 100 for about 5-6 secorlds, and thet- rotati.ng washirlg ta~lli ] 00 in th~3 left ~r righ1: dire~tion for ~out 1.-3 ~econds ( S,8 ) -3~ When th~ de.waterin~ ste~p is complcte~ to f iIli' h the ~ashing of t~le ~a~hi.ng object"~ om 200 y~nerzlt~s ~ l~u~e~
sound via speaker 190 so th~t the ~s~r may no~e -~hat. This RUG 01 ~æ ll æR~ 181 P.16 2~82~29 WO~17~2 ~CT~ ~41UUln finishes the w~shing method-for WaBhing th~ washing ob~ect made of silk.

~ d~antages obtained by using the detergen~ composition S o~ the p~e~ent i.nveIltio~ and the metho~ for w~sh.Lng a washing object a~cording to the p~ese~t invention are as follows Firstly, ~licyh grade clothes cculd ~ w~h~d using water, Clothes made of wool, si~k, reg~nerat~d cellulo~ie fiber, etc. can ~ ~omc~tically laundere~ using wat~r, which ha6 ~e~n pc-~ssi~l~ only through dr~ cleaning, Secondly, protein-based pollutan~i ca~l be re~.oved.
~hrough adding a pro~easc, the prot~in~basec~ polLutant:s can ~ co~ple~ely r~mo~ed, which co~ld n~ b~ remo~ed t~rough 1~ dry cle~ning.
Thirdly, w~ter soluble i.norganic material~ can be :~emoved. Throug;n washing ~sin~ wate~ t~ water sc~luble inorganic pollu~ants can be completely removed, which have been impossible to remove through dry ~1eaning.
Fourtbly, ~ron~ washabilit~ oE ~att~ pollutants c~n b~ obtained. ~atty acid glycerid~ ~atty pc.~llutants which ha~e ~een secrete~ from human ~kin and ~ecom~ the ma~n pOllU~.aht on the fiher can he more effectively re~o~ed ~y u~ing an emulsion of la~r~l-based non-ior~ surfactant ~d ~5 ~organic solver.t when co~p~re~ with the J.aunderin~ u~iing a cor.ve~ion~l surfactant or the .d~y cleaning us:ng so].vent.
Fifthly, tJlis lowers cost ~omestic Jaun~ering using ~atcr is con~er~ient, sanit~ry ~nd economie.
Preferred ~xamples of th~ present invention wi.ll be described in d~ail be1ow. However, the present i.nven~ion is not limitcd to these ex~mples.
Examp~es 1-5 ete~gen~ compositions were pxep~red by mixing a laur~l-based non-ionic sur~actant, n-decan~ ~s a normal para~in, li.mon~ne as ~n uns~urated aromatiG hy~rocarbon, lg RUG 01 '96 11:32RI`1 NRM&1`1~;~181 P.17 ~182~29 ~~ ~096n70s2 rcTn;nsdnlnl72 ~etra-alkyl ammo~ium chlo~ide, protea6e, lipa6e, carboxy~
methyl cellulose ~nd butyl diglyc~ as shown in Tabl~ 1.

Table 1 example 1 2 3 ~ s co~ponent lauryl ~3 ~0 lS 22 19 alcohol oxyeth~lene coconut fatty 5 5 ~S 7 1~.
acid alkanoi amide n-decanc 18 12 2 0 1~ 16 , limonene 9 6 lo 7 8 tetra-alk~l 0. 3 0 . 5 0 . 6 0 . 4 0 . 7 ammonium chloride ~rotease 0.7 O.s 0.2 0.3 ~ i 2a lipase 0~7 0.5 0 ~ 0.6 0. 3 c~rboxymeth~l 0.4 0.5 0.3 0.7 -i ce3.1.ulose . ~ , .. . .
butyl ~ 10 R 1 9 digl~col ~5 wa~er 36.9 45 40.1 41 34.

Comparative Example 1 Commerciail~ a~aila~le de~er~e:n~ ~.or launde~ing, p~rchlc~roethylen~ of hydrocarbon sol~ n~ ~ncl dr~ type 30 washing machi~ or dry cleaning were prcp~red.

~0 ~182~29 W096/17052 rcT~ mol72 Comparative Example 2 Cornmercially a~ailable Dry-senka (model name;
manufactured by Inter Orion Co. Japa~) w~s prepared.

Contractibllit~ Te~t Pure sill; laundry samples o~ 30cm in wi.dth and 40cm in length, and p~re wool laundry sample~-j o~ 2~cm in widLh and 30cm in length were pr~pared. These sam~le~ were laundered using ~he deter~ent composition~ accor~in~ t.o Example~ 1 to 5~ an~ Comparativc E~a~ple 2 by dry cl~aning mode w.~shing and silk mode w~shing processes.
A~ a washiny machine, DWE'-6~50F (~ade name;
~a~ufactured by ~e Woo Electronics ~-o. Ltd, Ko~cl~ ~as used and the launderin~ wa~ carried ou~ as per the above mentioned dry cle~ning mode and silk mo~e ~rocesses. water le~el in the w~6hing machine W~6 adjust~d to the st.~ndard level o~ 59Q and the amount of the dctergent us~d was 29 5g In additiorl, the 6amples were laun~ered b~ the ~0 conventionaI d~ cleaning method ~t launder~tte u6ing the ~etergent in Co~rArative Example l.
Ater the sample~ ~ere laundered usi~lc~ the detergent compositions of Examples 1 to 5, C~m~Ar~tive Exa~ple 2 apd ~y means of ~he a~ove mentione~ launderiilg proces;, and 25 - oth~r samples were laundered usin~ the det.3ryent composition and ~he solvent of Comparative ~xamplec; 1 il~
~cc~rdance wi~h ~ ~onventional dry cleaning process, the v~rious samples were 18id wi~hout the ~ d rumple:3 on a sh~ded and smoot'n pla~e and ~e~e natur~ly driec. ~he length and width o~ the samples wçre m~sured ar.d the ~ontraotibiliti~s were calculated ac~rding tc the foll~win~ equatioh (1).

contractibi:lity (~) =
length length be~ore launderi.ng - after ~aundering -... X 100 ~
length ~efnre laundering ~,0 ~18'~629 - ~VO ~61170$~ PC~ 194/1~O~t2 The re~ult~ ~re illu~trated in Table 2.
Ta~le 2 E~mples Com~. Comp.
.~ . Ex. 1 Ex. 2 W 1; W ~i W 8 w s w Ei w s w s O i O i O i O i O i O i O
0 1 0 1 C~ 1 0 1 ~ ~ O 1 0 1 ~ 1. k 1 k 1 k 1 k 1 h 1 k W ~ O O O O 0 1 0 0 0 0 1 1 0 . . . . .
A 7 5 7 1 8 3 1 1 9 8 8 ~ 3 8 . 7 6 9 7 5 7 5 7 0 5 1 2 ~ 5 L 0 0 0 1 0 1 0 2 2 1 1 ? 2 2 .
A 5 8 ~ 5 7 ~ 9 1 ~) ~ 5 7 4 ~ 2 C~ 4 0 0 7 9 5 0 3 0 8 ~. r . ~ r_: . r~
* In table 2, W.A. ~epre~ents contractibili~.y in the ~idth ~easure~ent and L.~. rep~esents con~rac:ti.bi..~ y in ~h~
length me~sureme~t .
As can bc S~Ch from table 2, w~ ~un~ that the -contractibility of t~e silk or wool laundry obtaint~d by lau~ ring u~ing ~e de~ergent composiLi-~n of ~he prl~ent invention is similar to that o~tained ~y laund~ri~lg h~ dry cl~ning en~ru~ted to launderet~e Wasllabiljty Test 1) preparati~n of polluted fabric A fahric o~ si~k or wool which ~lad an ~ri(~inal ~eflectance of 70 0 ~s prepared and was Ollt. l.o the si 7e lSclnx20cm. In a 50mQ vessel, 0 3-O ~y of llardenin~ oil (melting point; 57C or above, iodj.ne va]~le; 3 or .Less, s~pon.i.fication ~lue; 90-93) and 3g o~ flowi.na pura~in f~UG 01 '96 li:33~ ~ l . P.20 218~B29 WO9G/I7052 rcTlKp~lNlol72 ~ere added. I~hen lamp bla~k was ad~ed t~leretu alld t~le mix~ure wa6 homogeneously s~irred fo~ a prede~nnined period or ~or predetermined times using an oil ro~. The obtained mixture wa~ dispersed i~ B00~ o~ tetrachlorccarbon S or l,1,1-trichloroethan~ to obtain a poll~ing liqu:id.
~ n a d~eing bath of lSc~X20cm size, 400g of the po~luting liqui.d was added and m~in~ained a~ the temperature o~ 15-30~C. The cut ~a~ric wa~ pollu~ed for 60 second6 ~ile properly turning o~er the f~ric. The amoun~
of the la~p black was adju6ted to obtai.n th~ r~flectance of the fa~ric ranges 30+2~
2) measure~ent of the relec~ance The reflectance on tbe sur~ace of' th~ fabric ~as measured using 510-550nm wavelengtll ~y means of a photometer, a photoreversing ref lec~ome~e~, a spectrophotome~er, etc.
~he reEl~t~nce of the whi~e plate o~ magnesiula oxide was re~ar~ed as 100~, while ~h~ refl~ctance of. a bla~k hody was r~garded a~; O~. The refl~ctance of t~-e pollute~ fabric ~3 was measured at ~wo positions of eac:ll front side a~ld bacX
side The total of ~our r~:f lectances ~ere lneas~red and an ~lerage thereo~ w~ regard~d a6 a .~lec~.ance of the f abrics .
3) laundering of the pollllted fabric:
The pol.luted ~abric~ we~e prepaled as sa~Tples ~nfl were l~undered usinq the deter~ent: cc:mpositi.c,n of the examples to 5 and compar. ative exampl~ ~ and by lneans of dry mode w~shing and silk moc~e w~shing pr~sses.
P,s a w~shirlg machirle, -I~WF-~650F (model nam~;
~0 manufactured ~y I)ae Woo Ele~ronics C:o . Lt~3 ., ICorPa ) ~as used and th~ samples were launde~cd at t.he above-)nentioned dry cleanin~ rnode. Th~ water lelr~31 wa~ adjusted to t:h~
standard washing level 59Q and the am~unt ~f the detergent used was 29 . 5~ .
~5 In addition, ~he samples were lal~ndered by the coJIvent: ional ciry e;Le~rli.ny method at n l~ c3tt~ u~;ln~ e ~et~ nt and t hc solv~nt in Comp~ti.ve ~am~le 1.

~UG 01 ' 96 1 1: 33Rr~ 181 P . 21 ~182~2~ I
~ WO961170~2 ~ S~110017Z

After l~u~lderin~, the samples 3.a-lrdered u6ing the de~ergent comp~itions of Exampl~s 1 ~o 5, Comparative E~mp~e 2 and by means of t~e above ~entioned laun~ering method, along wi.th ~ther sa~ples la~ndered by usirlg the detergen~ compo6i.~ions o~ Comparative Example 1 and .~y ~he conventional dry cleaning method, were laid witho~lt the folded rumples on a shaded and smooth pl~ce and were na~ally dried. The reflectances of the lanndered f.~brics were mea6ured and washability was cal~lat~d accord.in~ to the following equation (2).

'wa~habilit~7 (96) -re~lectance befo~e - reflectance ~ter 1~ laundering (~) launde~ing (~) x lOo --- (2) reflcctance of ~he - reflectance before original fabric ~) laundering (~) The results are illu6trated in Table 3.

~4 ~UG 01 ~ 34Rr1 ~ 181 P.ZZ
- ~0 g6117~52 ~ 1 8 ~ ~ ~ 9 - P~/KR9~1Onl72 Ta~le ~

Examplcs C~omp ~omp.
E~ 2 ~ Ex.
2 3 4 ~ 3 w s w s w s ~7 s w s w s w s o i ~ i o i o i o i o i o o 1 o 1 o 1 o 1 o 1 o 1 o k 1 k l k l k l k l k l k R 2 3 3 3 2 3 2 3 2 3 ~ 3 2 3 B . . 9 ~ 1 8 1 8 o 3 4 S 7 g 7 6 0 ~ 8 ~ 4 6 2 F~ 3 4 4 4 3 ~ 3 3 3 ~ 3 4 3 3 î 1 1 1 / 0 8 9 8 1 8 J 7 5 4 5 8 3 3 5 7 ~ 6 ~ ~ 4 7 2 1 :1 i 3 1 ~ ~ ~ O
1~ ~ . . . . . . . ~ . . . . . .

~ In tab~e 3, R.B. repr~sents ~efl~tance befo~e laundering, ~.~. represents reflectan~ after l~unclering, 2Q and W.A. repres~nts washability.

As cah be seen from table 3, ~e~ found that ;imilar ~ashability of lau~dry made of silk or woo~. can be o~ltained by using the ~et~rgent composition o~ th~ presen~ invention as compared with the conventional ~ry cleanin~ at la~nd~rette.
~ or~over, since the detergent e~m~osit.ion u~ th~
present invenLion incl~des non-ionic ~ur~ctant having a good ~ashability, the insoluble calciu~l sal~ ~as not 3G p~oduced even though ~ashed wi~h piped water.
In case of la~ndering thc laundry m~e o~ k c,r wool ~sing the det~rc3erlt composition o~ the ~resent invention, RUG 01 96 1 1 34~M NRM&r ~ 181 p .
- wos6/~70s2 ~18~629 - rcrl~cR9~lon172 6imilar efect6 in con~raction and wash~bility cas~ be obtained as in the case of ~he conv~ntiona~ launder.in~ at launderette. Therefore, si~npl~ laundering ~ithout da)naging ~iber is po6sible when u~ing the deter~cnt composit.ion of the present invention, and 80 cost ~an h~ saved. Moreover, unsanitary problcm~ when laundered in the w~shing tank with other laundr~ co~ld be ~olved and cl~.~rl ~nd 6at.isfied wearing can be acco~npli~hed.

1~

Claims (12)

What is claimed is:

1. An oil-in-water emulsion-type detergent composition comprising:
from about 15 to about 45 parts by weight of non-ionic surfactant;
from about 15 to about 35 parts by weight of hydrocarbon solvent containing normal paraffin and/or limonene for laundering;
from about 25 to about 50 parts by weight of water; and from 0 to about 10 parts by weight of an additional agent.

2. The detergent composition as claimed in claim 1, wherein said non-ionic surfactant is at least any one selected from the group consisting of lauryl alcohol oxyethylene and lauryl alcohol amide.

3. The detergent composition as claimed in claim 1, wherein said normal paraffin includes 9 to 13 carbons.

4. The detergent composition as claimed in claim 1, wherein said additional agent includes from about 0.3 to about 0.7 parts by weight of tetra-alkyl ammonium chloride .

5. The detergent composition as claimed in claim 1, wherein said additional agent includes from about 0.2 to about 0.7 parts by weight of protease which maintains a titer at the pH of from about 6.0 to about 8Ø

6. The detergent composition as claimed in claim 1, wherein said additional agent includes from about 0.3 to about 0.8 parts by weight of lipase.

7. The detergent composition as claimed in claim 1, wherein said additional agent includes from about 0.3 to about 0.7 parts by weight of carboxymethyl cellulose.

8. The detergent composition as claimed in claim 1, wherein said additional agent includes about 6 to about 10 parts by weight of butyl diglycol.

9. The detergent composition as claimed in claim 1, wherein said additional ratio of said normal paraffin and said limonene is about 2:1.

10. An oil-in-water emulsion type detergent composition comprising:
from about 15 to about 45 parts by weight of non-ionic surfactant;
from about 25 to about 50 parts by weight of water;
from about 0.3 to about 0.7 parts by weight of tetra-alkyl ammonium chloride;
from about 0.2 to about 0.7 parts by weight of protease maintaining a titer at a pH of from about 6.0 to about 8.0;
from about 0.3 to about 0.8 parts by weight of lipase;
from about 0.3 to about 0.7 parts by weight of carboxymethyl cellulose; and from about 6 to about 10 parts by weight of butyl diglycol.

11. A method for laundering laundries made of silk or wool using the detergent composition as claimed in claim 1.

12. A method for laundering a washing object comprising the steps of:
introducing the detergent composition as claimed in claim 1 into a washing tank having a rotary blade;
diluting said detergent composition by introducing a first amount of water into said washing tank, while rotating said rotary blade;
adjusting a second amount of water suitable for laundering the washing object by introducing water into said washing tank;
introducing the washing object made of silk or wool into said washing tank;
and rotating said rotary blade to generate a water flow suitable for laundering the washing object.