compartment containing the cross-linking agent, which com- The term "normal operation" is intended to mean the
partments are located adjacent to the reservoir for the cyclosi- operation of the dry cleaning system of the invention for the
loxane dry cleaning solvent or the vessel, and separated there- purpose of running a dry cleaning process for treatment of
from by means of a barrier which opens in case of an fabric articles.
increased temperature event. 5 On the other hand, the term "increased temperature event"
Tt, . • .• • , r , , i is intended to mean the event occurring when the temperature
ine present invention provides a sale dry cleaning method _ , . ,• , 7 , •
, , , ^ . „, . , . , , oi the environment surrounding the dry cleamng system or
and system, because under certain conditions oi high risk (as ^ ^ „ ^ , ., , , . ,
, .' . . . . . . „ , the temperature oi the cyclosiloxane dry cleamng solvent
a result oi a high temperature event) the viscosity and flash- , • • , . A +u +u u + *,
, ., '. J . used in said system exceeds the threshold temperature
point of the cyclosiloxane dry cleaning solvent used in said w ... The threshold temperature of the solvent is equal to
system/method strongly increase. Furthermore, if the high the flash point thereof Examples of an increased temperature
temperature event would lead to a spillage of the solvent the event are fire in the room where the dry cleaning system is
surface area covered by said solvent will be considerably located, and overheating of the cyclosiloxane dry cleaning
reduced owing to the strong viscosity increase. solvent used in said system caused by failure of all tempera
As a consequence, the dry cleaning method and system of 15 ture controls,
the invention are particularly suitable for use in domestic The term "barrier" is intended to mean a structure that
environments. separates the working and used cyclosiloxane dry cleaning
These and other aspects, features and advantages of the solvent on the one hand from the solidifying agent and,
invention will become apparent to those of ordinary skill in oP^nally the cross-linking agent, on the other hand. Said
,, , r j- p., r „ • j . •, j j • 20 barrier structure is closed under normal operation and is
the art from a reading oi the following detailed description .. . . ...
, ^ 111- opened by an increased temperature event trigger upon which
and the appended claims. ^ \ , ^ ^ ^ i
the separated components are contacted.
For avoidance of doubt, it is noted that the examples given A suitable barrier for use in the present invention contains
in the description below are intended to clarify the invention an eiement selected from a bi-metal, a membrane, a valve and
and are not given to limit the invention to those examples per 25 a combination thereof.
se. Other than in the examples, all numbers expressing quan- The terms "fabric article" and "laundry article" as used
tities of ingredients or reaction conditions used herein are to herein are intended to mean a garment but may include any
be understood as modified in all instances by the term textile article. Textile articles include—but are not limited
"about", unless otherwise indicated. Similarly, all percent- to—those made from natural fibres such as cotton, wool,
ages are weight/weight percentages of the total composition 30 linen, hemp, silk, and man-made fibres such as nylon, vis
unless otherwise indicated. Numerical ranges expressed in cose, acetate, polyester, polyamide, polypropylene elas
the format "from x to y" are understood to include x and y. tomer, natural or synthetic leather, natural or synthetic fur,
When for a specific feature multiple preferred ranges are and mixtures thereof,
described in the format "from x to y", it is understood that all .
ranges combining the different endpoints are also contem- 35 *y eamng e o
pjated The dry cleaning method of the invention may comprise
different cleaning and rinsing cycles in any order depending
DETAILED DESCRIPTION OF THE INVENTION on the desi[ed °"tcome-The TMmbf and length of the cycles
may vary depending on the desired result.
Definitions 40 ^or tne PurPose °f me present invention, a rinse cycle is
defined as a cycle wherein the laundry articles are agitated in
. cyclosiloxane dry cleaning solvent only. When surfactant
The term dry cleaning process used herein is intended to and/or Qther ^ is ^ Je ig described
mean any process wherein laundry articles are contacted with ag a deani le ... deani ig understood to encom.
a dry cleaning composition within a closable vessel. It is to be g conditioning
understood that this is also meant to encompass other fabric 45 A it. - t + + A n 1
, . .... p. , P , . A cycle wherein surfactant and, optionally, other cleamng
treatments such as but not limited to softening and refreshing. .. , • „ „ . , , , ,
. .. . r , , agent is used will normally comprise oi different steps such as
However, as used herein this term does not include any pro- . . , ... .,, , .,
. . . . . , n, . . , J r. mixing a disposable treatment composition with a cyclosilox
cess comprising cycles wherein the iabnc articles are also j i • 1 -c J 1
f , . . . . . . . ane dry cleaning solvent to form a dry cleaning composition,
immersed and rinsed in an aqueous cleamng composition . .. r, ■ .■ , •., ■?■
. . , „_n/ n _ , ° , . . . 50 contacting a iabnc article with said composition, removing
comprising more than 80% wt oi water because this would ... f .u r * • , , ,
\, , 6 , 11111 said composition irom the iabnc article. 1 he removal may be
usually damage garments that can only be dry cleaned. . , , , , . , , , . .
J ° ° J J earned out by any means known in the art such as draining,
The term "disposable treatment composition" is intended spinning or, when appropriate, evaporating the composition,
to mean a composition consisting of one or more surfactants Generally, fabric articles are cleaned by contacting a clean
and optionally other cleaning agents. 55 ing effective amount of a dry cleaning composition with said
The term "cyclosiloxane dry cleaning solvent" as used articles for an effective period of time to clean the articles or
herein is intended to encompass the "working cyclosiloxane otherwise remove stains therefrom.
dry cleaning solvent" and the "used cyclosiloxane dry clean- Each cleaning cycle may preferably last from at least 0.1
ing solvent". These are different forms taken on by the min, or more preferably at least 0.5 min, or still more prefer
cyclosiloxane dry cleaning solvent as it passes through the 60 ably at least 1 min or even 5 min, and at most 2 hours,
present system or method during the cleaning and, optionally, preferably at most 30 min, even more preferably at most 20
the reclamation operation. mm. In some cases longer times may be desired, for example
The term "dry cleaning composition" as used herein is overnight,
intended to mean the composition used in the dry cleaning Usually, the fabric article is immersed in the dry cleaning
process including the cyclosiloxane dry cleaning solvent, a 65 composition. The amount of dry cleaning composition used
disposable treatment composition and, optionally, water, but and the amount of time the composition is in contact with the
excluding the fabric articles that are to be cleaned. article can vary based on the equipment and the number of