CN1766221A

CN1766221A - Method for laundering fabric with a non-aqueous working fluid using a select rinse fluid

Info

Publication number: CN1766221A
Application number: CN 200510106414
Authority: CN
Inventors: J·A·勒克曼; R·A·桑萨伊; T·L·赖特; A·莱特
Original assignee: Whirlpool Corp
Current assignee: Whirlpool Corp
Priority date: 2004-10-01
Filing date: 2005-09-23
Publication date: 2006-05-03
Also published as: AU2005211679A1; MXPA05010036A; CN1760435A; BRPI0504222A

Abstract

Methods of laundering fabric having the steps of applying a non-aqueous working fluid to fabric, removing a portion of the non-aqueous working fluid from the fabric, and then applying a select rinse fluid to the fabric. The method may be performed in a batch-type laundry apparatus and may include the steps of recovering and storing for reuse the non-aqueous working fluid and the select rinse fluid.

Description

Use the selected rinse fluid and the method for wash fluid laundering of textile fabrics

Technical field

The present invention relates to a kind of method of laundering of textile fabrics.

Background technology

As Perry described in the Chemical Engineering handbook the 7th edition, liquid extraction be utilize component in two immiscible phases distribution and the method for component in the separation solution.This method is also referred to as solvent extraction, but solvent extraction also comprises from solid lixiviate solable matter.

The present invention relates to a kind of flow process and component, thereby can make a kind of non-water washing machine, it is self-contained, automatically and small-sized relatively, can family expenses and in commercial use.This laundry function makes the owner not only can wash traditional fabric (COTTON FABRIC, polyester textile etc.) at home, and can also wash the fabric that needs exercise due diligence (as fabric that only can non-water).Prior art repeatedly attempts making a kind of nonaqueous system, but these trials have many shortcomings.

Traditional nonaqueous solvents (as perchloroethylene) is not suitable for family expenses because known they have can influence the defective of environment and health.Proposed to contain the possible solvent of fluorous solvent (for example hydrogen fluorine ether) already as this purposes.These solvents be the environment friendliness and have high vapour pressure, thereby the drying time that only need lack.But these existing solvents can not provide described washing system required wash degree.

Also proposed to be used for other solvent of these purposes as possible fluid.Siloxy group material, glycol ether and hydrocarbon solvent have been tried out.These solvents are combustible fluid normally, although known in the art its has to a certain degree dirty removal capacities.But, therefore be difficult to be dried with traditional convection heating system because these solvents are the flammable low vapour pressures that also often have.Solvent evaporation with low-vapor pressure is slow, thereby has prolonged the dry required time of this system.At present, NFA association has the product specification relevant with combustible solvent.These safety standards have limited these solvents are carried out possible heating or control the required foundation structure of this washing machine as can be seen.In traditional laundry/drying unit mahine, be load capacity according to the rate of drying limit capacity.But for the present invention, the capacity of washing machine is the size of Qu Jue Yu Roll tube but not load capacity more.

The present invention uses the above-mentioned solvent of part to come cleaning fabric and do not have the dry problem relevant with these solvents.This is by using a kind of selected rinse fluid to finish, thereby has solved most these dry problems.

United States Patent (USP) 5,498,266 disclose a kind of method of using the petroleum-based solvent steam, and it mixes the perfluorocarbon steam from fabric with the petroleum solvent steam and removes described solvent, and improves security by the possibility of catching fire or exploding that reduces steam.But do not disclose the long-time stability of these mixtures, owing to each independently the separation of component have separately possibility.

United States Patent (USP) 6,045,588 disclose and have a kind ofly used that the inertia working fluid washs, the dry and method that reclaims.In addition, the document has been reported in washing and dry run and has been carried out liquid extraction with the inertia working fluid.The difference of patent application that this is new and United States Patent (USP) 6,045,588 be it provided preferably example the amount of required rinse fluid is reduced to minimum, and recovery method, equipment and the order do not mentioned before having provided.

United States Patent (USP) 6,558,432 disclose use pressurized fluid solvent (for example carbon dioxide) avoids dry problem.According to this method, need the pressure of about 500-1000psi.These conditions cause need be more required than laundry operations bigger washing machine.In addition, this method is a kind of infusion method, needs to surpass one rinse step, therefore needs additional storage capacity.

United States Patent (USP) 20030084588 discloses the textile article that the cosolvent of high vapour pressure (surpassing 3mmHg) is used to contain lipophilic fluid.Although better use the solvent of high vapour pressure in this system, United States Patent (USP) 20030084588 is not mentioned, and when using this fluid, applies the possible method of this fluid, does not mention the amount that makes required fluid yet and will reduce to minimum method.At last, the possible countermeasure of the cosolvent of the described high vapour pressure of the unexposed recovery of this patent.

Used various perfluorocarbon materials already separately or itself and cleaning additive combination be used to wash printed substrate and other electric base material (for example referring to United States Patent (USP) 5,503,681).Spraying is cleaned rigid substrate and is different from the soft fabric of washing fully.In addition, cleaning electric base material is to adopt multistep to finish in the manufacturing equipment of high-tech, is not easy to be applicable to that the present invention cleans purposes.

The content of invention

First purpose of the present invention provides a kind of a complete set of order of non-water operation of self-contained non-water washing machine, and it uses the material blends that can separate economically and can be repeatedly used.

Another object of the present invention provides the concrete grammar of introducing selected rinse fluid.

Another object of the present invention provides reduces to the amount of required rinse fluid minimum and described selected rinse fluid and working fluid and textile article is reduced to the shortest technology and method contact time.

Another object of the present invention provides a kind of low temperature drying method, and it can form improved fabric nursing and make described non-washing clothing facility that lower energy consumption be arranged.

Another object of the present invention provides some method that adopts in these methods and improves and want dry load capacity and can not resemble the advantage of drying time of obvious prolongation traditional washing washing machine and the non-water washing machine.

Another object of the present invention provides and not only reclaims described selected rinse fluid, but also the recovery method and the technology of recovery operation fluid and washing mother liquor.

Another object of the present invention provides equipment and is used to finish the applying of described selected rinse fluid, low temperature drying and recovery method.

The mode that another object of the present invention provides a kind of environment friendliness concentrates the dirt of removing and disposes it.

A further object of the present invention is that all materials of use all are to avoid exploding and burn the type of risk.

The invention provides the method for a kind of rinsing in non-water washing machine, drying and recovery fluid.

One aspect of the present invention provides a kind of washing methods of fabric, and wherein said fabric contacts with working fluid, and this fabric contacts with the rinse fluid of selecting subsequently, and the boiling point of this rinse fluid hangs down 30 °F than the flash-point of described working fluid at least.

Another aspect of the present invention provides a kind of washing methods of fabric, and this fabric is with washing attached to the working fluid on the fiber by infiltration and/or hydrogen bonding; Remove most of working fluid from fabric; The miscible rinse fluid of the fabric that contains working fluid and selected and described working fluid contact, remove the residual working fluid of major part from this fabric, the surface tension of described selected rinse fluid is less than the surface tension of described working fluid.

In another aspect of this invention, adopt a kind of working fluid that has affinity with fabric fibre.Make selected rinse fluid by described fabric so that remove to the small part working fluid from this fabric, boil off residual selected rinse fluid and working fluid from this fabric subsequently.

In another aspect of this invention, fluid is made in the non-water conservancy project of selecting for use a kind of flash-point to be at least 100; Select a kind of selected rinse fluid, it can be increased at least 200 °F with the flash-point of the working fluid and the mixture of the rinse fluid of selecting.

In one side more of the present invention, with the load capacity that is lower than the long-pending 0.10kg fabric of every liter of Roll cylindrical shell fabric is put into laundry wheel, washed this fabric, removes most of described non-aqueous fluid, removes residual non-aqueous fluid and remove most of described selected rinse fluid and residual non-aqueous fluid at the 4th predetermined amount of time from described fabric with selected rinse fluid at the 3rd predetermined amount of time from described fabric at second predetermined amount of time with non-aqueous fluid in the first preset time section, be lower than washing and this fabric of drying in time of 80 minutes.

By following accompanying drawing and the better description of example, those of ordinary skill in the art can easily understand other purpose of the present invention and advantage.

Description of drawings

Fig. 1 is for can finish washing cell arrangement of the present invention;

Fig. 2 is the parts that are used for dry cycle of the present invention;

Fig. 3 is a retracting device part of the present invention;

Fig. 4 is another view of described retracting device;

Fig. 5 is another view of described retracting device;

Fig. 6 is the flow chart that adopts an example of the washing of described material and removal process, thereby can constitute a self-contained non-water washing machine;

Fig. 7 is the flow chart that adopts second example of the washing of described material and removal process, thereby can constitute a self-contained non-water washing machine;

Fig. 8 is the flow chart that adopts another example of the washing of described material and removal process, thereby can constitute a self-contained non-water washing machine;

Fig. 9 is the flow chart that adopts an example of the washing of described material and removal process, thereby can constitute another self-contained non-water washing machine;

Figure 10 is the flow chart that adopts another example of the washing of described material and removal process, thereby can constitute another self-contained non-water washing machine;

Figure 11 is a kind of a kind of device that can finish in above-mentioned washing and the drying means, and it is crucial parts that this device has provided for described selected rinse fluid step;

Figure 12 shows the possible recovery method that is used to contain the system that selectes rinse fluid;

Figure 13 shows the recovery method preferably that is used for this operation.

The specific embodiment

The name that the washing that these clearly demarcated drawing and description are described and the effect of reclaimer operation are to use on October 31st, 2003 to submit to is called the U.S. Patent application 10/699 of " non-wetting system ", 262 disclosedly test the improvement of washing machine, and the document is drawn at this and to be reference.

The invention provides a kind of washing methods of fabric, it comprises the following steps:

(a) fabric is contacted with working fluid;

(b) this fabric is contacted with the rinse fluid of selecting, select described selected rinse fluid to make its boiling point hang down at least 30 °F than the flash-point of described working fluid; With optional

(c) in described working fluid, add at least a detergent additive.

Described at least a detergent additive is selected from, but be not limited to builder, surfactant, enzyme, bleach-activating, bleaching catalyst, bleach boosters, bleaching agent, alkali source, antiseptic, colouring agent, spices, fragrance precursor (pre-perfume), finishing auxiliaries, lime soap dispersant, component stink controlling agent, odor neutralizer, the polymeric dye transfer inhibitor, crystal growth inhibitor, optical white, heavy metal ion chelating agent, anti-tarnishing agent, antimicrobial, antioxidant, bridging agent (linker), anti redeposition agent, electrolyte, the pH regulator agent, thickener, abrasive material, divalence or trivalent ion, metal cation salt, enzyme stabilizers, corrosion inhibitor, diamines or polyamines and/or their alkoxide, the foam stabilization polymer, solvent, processing aid, fabric softener, fluorescent whitening agent, hydrotropic agent, foam inhibitor, foam improver, fabric softener, antistatic additive, color-fixing agent, the dyestuff wear inhibitor, friction resistant decolorizer (anti-crocking agent), the fold depressant, anti-fold agent, the dirt polymer-stripping, anti-staining agent, sun-screening agent, anti-decolourant, water and composition thereof.

Described working fluid can be selected from, but be not limited to the ester of terpenes, halogenated hydrocarbons, glycol ether, polyalcohol, ether, glycol ether, fatty acid ester and other long-chain carboxylic acid's ester, fatty alcohol and other long-chain alcohol, short chain alcohol, polar non-solute, siloxanes, hydrogen fluorine ether, dibasic ester, aliphatic hydrocarbon and/or their mixture.Be preferably, described working fluid is selected from, but be not limited to decamethylcyclopentaandoxane, ten dimethyl, five siloxanes, octamethylcy-clotetrasiloxane, decamethyl tetrasiloxane, dipropylene glycol n-butyl ether (DPnB), dipropylene glycol positive propyl ether (DPnP), dipropylene glycol uncle's butyl ether (DPtB), propylene glycol n-butyl ether (PnB), propylene glycol positive propyl ether (PnP), tripropylene glycol monomethyl ether (TPM) and/or their mixture.Best is that described working fluid is a water.

Described selected rinse fluid can be miscible with described working fluid, and its Hanson solubility parameter (with joule/cubic centimetre expression) satisfies in the following standard:

(a) polarity greater than 3 and hydrogen bonding less than 9;

(b) hydrogen bonding is less than 13, and dispersiveness is about 14-17; Perhaps

(c) hydrogen bonding is 13 to about 19, and dispersiveness is 14-22.

Be preferably, described rinse fluid is selected from, but is not limited to, perfluoroparaffin, Decafluoropentane, hydrogen fluorine ether, MSX 4518, ethyoxyl nine fluorine butane and their mixture.

In an example of the inventive method, the described step that fabric and non-water conservancy project are contacted as fluid comprises that applying mechanical energy makes fabric and working fluid relative motion.Be preferably, the application time of described mechanical energy is enough to remove crude removal from fabric.Be more preferably, described mechanical energy be by roll, stirring, nutating or promote fabric; The reverse rotation laundry wheel; Liquid sprays working fluid and applies with rotation fabric or their combination.

In an example of the present invention, after making fabric and working fluid contacts, remove a large amount of working fluids from fabric.Be preferably, the step of removing working fluid from fabric is included in fabric and applies the centrifugal force of 5G at least.

In an example of the inventive method, the described step that fabric is contacted with the rinse fluid of selecting comprises to the per kilogram fabric and adding less than 20 liters of selected rinse fluid.In addition, when making fabric and described selected rinse fluid contacts, can apply mechanical energy so that fabric and described rinse fluid relative motion to system.The concentration that the time that described mechanical energy applies is enough to better will to remain in the working fluid in the fabric is reduced to less than 45% of fabric weight, better less than 25%, preferably less than 15%.Be preferably, the application time of mechanical energy was at least 2 minutes.Be more preferably, mechanical energy can apply continuously or intermittently apply.

In addition, after making fabric and the rinse fluid of selecting contacts, a large amount of selected rinse fluid and residual working fluid are removed from fabric.After removing described selected rinse fluid and residual working fluid, this mixture is recycled fabric and/or described selected rinse fluid and the residual working fluid removed comprises and make dry gas pass through fabric.Described dry gas is selected from air, nitrogen or carbon dioxide.The temperature that should control dry gas makes the temperature of fabric be no more than 140 °F; Should control the temperature of dry gas, make the temperature of working fluid be no more than and/or make dry gas pass through condensing unit than the temperature of low 30 of the flash-point of this working fluid, to remove the steam of part working fluid and the rinse fluid of selecting, contact with fabric more subsequently.

The present invention also provides a kind of washing methods of fabric, and it comprises the steps:

(a) with work fluid wash fabric, described working fluid by infiltration and/or hydrogen bonding attached on the fiber;

(b) remove most of described working fluid from fabric; With

(c) from fabric, removing at least under the condition of part working fluid, the miscible rinse fluid of the fabric that contains working fluid and selected and described working fluid contact removing the residual working fluid of major part, and the surface tension of described selected rinse fluid is less than the surface tension of described working fluid.

Described working fluid can be selected from, but be not limited to the ester of glycol ether, polyalcohol, ether, glycol ether, fatty acid ester and other long-chain carboxylic acid's ester, fatty alcohol and other long-chain alcohol, short chain alcohol, polar non-solute, siloxanes, hydrogen fluorine ether, dibasic ester, aliphatic hydrocarbon and/or their mixture.Be preferably, described working fluid is selected from, but be not limited to decamethylcyclopentaandoxane, ten dimethyl, five siloxanes, octamethylcy-clotetrasiloxane, decamethyl tetrasiloxane, dipropylene glycol n-butyl ether (DPnB), dipropylene glycol positive propyl ether (DPnP), dipropylene glycol uncle's butyl ether (DPtB), propylene glycol n-butyl ether (PnB), propylene glycol positive propyl ether (PnP), two 3 the third two ferment monomethyl ether (TPM) and/or their mixtures that contract.Best is that described working fluid is a water.

In addition, can in described working fluid, add at least a detergent additive, it can be selected from, but be not limited to builder, surfactant, enzyme, bleach-activating, bleaching catalyst, bleach boosters, bleaching agent, alkali source, antiseptic, colouring agent, spices, fragrance precursor, finishing auxiliaries, lime soap dispersant, component stink controlling agent, odor neutralizer, the polymeric dye transfer inhibitor, crystal growth inhibitor, optical white, heavy metal ion chelating agent, anti-tarnishing agent, antimicrobial, antioxidant, bridging agent, anti redeposition agent, electrolyte, the pH regulator agent, thickener, abrasive material, divalence or trivalent ion, metal cation salt, enzyme stabilizers, corrosion inhibitor, diamines or polyamines and/or their alkoxide, the foam stabilization polymer, solvent, processing aid, fabric softener, fluorescent whitening agent, hydrotropic agent, foam inhibitor, foam improver, fabric softener, antistatic additive, color-fixing agent, the dyestuff wear inhibitor, the friction resistant decolorizer, the fold depressant, anti-fold agent, the dirt polymer-stripping, anti-staining agent, sun-screening agent, anti-decolourant, water and composition thereof.

In addition, described selected rinse fluid can have one the Hanson solubility parameter that is selected from the following standard:

(a) hydrogen bonding is about 13-19, and dispersion factor is about 14-22;

(c) polarity is greater than 3, and hydrogen bonding is less than 9.

Be preferably.The vapour pressure of described selected rinse fluid surpasses 5mmHg.

In an example of the inventive method, can in providing above the perforated cylinder of 1G power, fabric carry out the mechanical fluid removal, when described perforated cylinder is rotated with the power that is at least 1G and is injected in described selected rinse fluid on the described fabric and when described fabric rotates with the speed that is enough to described fabric is moved towards described cylinder wall, finish the step of removing of described working fluid.

After working fluid is removed step, remove a large amount of described selected rinse fluid and residual working fluid with the centrifugal force that surpasses 5G.After centrifugal rotation, make dry gas pass through fabric, described dry gas can be selected from air, nitrogen, carbon dioxide or its mixture.The temperature that should control fabric makes it to be no more than 140 °F; Should control the temperature of dry gas, make the temperature of working fluid be no more than and/or make dry gas pass through fabric than the temperature of low 30 of the flash-point of this working fluid, until the concentration of described selected rinse fluid and working fluid better less than 8% of fabric weight, better less than 5%, preferably less than 2%.

The present invention also provides a kind of method with work fluid wash fabric, and described working fluid has affinity to the fiber of fabric, and described method comprises the steps:

(a) remove most of working fluid from fabric;

(b) make selected rinse fluid by described fabric under such condition, promptly this rinse streams physical efficiency extracts the part working fluid at least from the fiber of fabric; With

(c) rinse fluid and the working fluid of evaporation of residual from the fabric, and described fabric is retained under the condition of substantially dry.

Described working fluid can be selected from, but be not limited to the ester of glycol ether, polyalcohol, ether, glycol ether, fatty acid ester and other long-chain carboxylic acid's ester, fatty alcohol and other long-chain alcohol, short chain alcohol, polar non-solute, siloxanes, hydrogen fluorine ether, dibasic ester, aliphatic hydrocarbon and/or their mixture.Be preferably, described working fluid is selected from, but be not limited to decamethylcyclopentaandoxane, ten dimethyl, five siloxanes, octamethylcy-clotetrasiloxane, decamethyl tetrasiloxane, dipropylene glycol n-butyl ether (DPnB), dipropylene glycol positive propyl ether (DPnP), dipropylene glycol uncle's butyl ether (DPtB), propylene glycol n-butyl ether (PnB), propylene glycol positive propyl ether (PnP), tripropylene glycol monomethyl ether (TPM) and/or their mixture.Best is that described working fluid is a water.

Select described selected rinse fluid to make it to have in the following Hanson solubility parameter one:

(a) polarity greater than 3 and hydrogen bonding less than 9;

(c) hydrogen bonding is that 13-is about 19, and dispersiveness is about 14-22.

Be preferably, described selected rinse fluid is selected from, but is not limited to, perfluoroparaffin, Decafluoropentane, hydrogen fluorine ether, MSX 4518, ethyoxyl nine fluorine butane and composition thereof.Be more preferably, the vapour pressure of described selected rinse fluid surpasses 5mmHg.

In an example of the inventive method, apply mechanical energy to promote to remove crude removal to working fluid and fabric.Described mechanical energy applies 5 minutes at least and/or described mechanical energy can apply continuously or intermittently.

The step of removing working fluid from fabric is included in the centrifugal rotation of 5G at least.The per kilogram fabric can add less than 20 liters selected rinse fluid with the extraction working fluid.When adding described selected rinse fluid, can apply mechanical energy, to improve the extracting power of described selected rinse fluid.The time that mechanical energy applies should be enough to the concentration of working fluid in the fabric better is brought down below 45% of fabric weight, better is lower than 25%, better is lower than 15%.

In addition, the step of the working fluid of evaporation of residual and selected rinse fluid comprises and makes dry gas pass through fabric.Described dry gas is selected from air, nitrogen or carbon dioxide.The temperature of fabric should be no more than 140 °F.Should control the temperature of dry gas, make the temperature of working fluid be no more than temperature than low 30 of the flash-point of this working fluid.

The present invention also provides a kind of washing methods of fabric, and it comprises the following steps:

(a) fabric is contacted with non-water conservancy project as fluid, select described working fluid to make it flash-point and be at least 100 °F;

(b) this fabric contact with selected rinse fluid, described selected rinse streams physical efficiency is increased at least 200 °F with the flash-point of the mixture of working fluid and the rinse fluid selected; With optional

(c) add at least a detergent additive to promote to remove crude removal and clean fabric to described non-water conservancy project as fluid, described detergent additive can be selected from, but be not limited to builder, surfactant, enzyme, bleach-activating, bleaching catalyst, bleach boosters, bleaching agent, alkali source, antiseptic, colouring agent, spices, fragrance precursor, finishing auxiliaries, lime soap dispersant, component stink controlling agent, odor neutralizer, the polymeric dye transfer inhibitor, crystal growth inhibitor, optical white, heavy metal ion chelating agent, anti-tarnishing agent, antimicrobial, antioxidant, bridging agent, anti redeposition agent, electrolyte, the pH regulator agent, thickener, abrasive material, divalence or trivalent ion, metal cation salt, enzyme stabilizers, corrosion inhibitor, diamines or polyamines and/or their alkoxide, the foam stabilization polymer, solvent, processing aid, fabric softener, fluorescent whitening agent, hydrotropic agent, foam inhibitor, foam improver, fabric softener, antistatic additive, color-fixing agent, the dyestuff wear inhibitor, the friction resistant decolorizer, the fold depressant, anti-fold agent, the dirt polymer-stripping, anti-staining agent, sun-screening agent, anti-decolourant, water and composition thereof.

In addition, to make another characteristics of fluid be that surface tension is less than 35 dynes per centimeter in described non-water conservancy project.It can be selected from, but be not limited to the ester of terpenes, halogenated hydrocarbons, glycol ether, polyalcohol, ether, glycol ether, fatty acid ester and other long-chain carboxylic acid's ester, fatty alcohol and other long-chain alcohol, short chain alcohol, polar non-solute, siloxanes, hydrogen fluorine ether, dibasic ester, aliphatic hydrocarbon and/or their mixture.Be preferably, described working fluid is selected from, but be not limited to decamethylcyclopentaandoxane, ten dimethyl, five siloxanes, octamethylcy-clotetrasiloxane, decamethyl tetrasiloxane, dipropylene glycol n-butyl ether (DPnB), dipropylene glycol positive propyl ether (DPnP), dipropylene glycol uncle's butyl ether (DPtB), propylene glycol n-butyl ether (PnB), propylene glycol positive propyl ether (PnP), tripropylene glycol monomethyl ether (TPM) and/or their mixture.

Select described selected rinse fluid, make it to have following performance: (a) viscosity is less than the viscosity of working fluid; (b) vapour pressure surpasses 5mmHg under standard conditions.Described selected rinse fluid is non-flammable, can be selected from, but be not limited to, perfluoroparaffin, Decafluoropentane, hydrogen fluorine ether, MSX 4518, ethyoxyl nine fluorine butane and composition thereof.

With described fabric with before described selected rinse fluid contacts, from fabric, separate a large amount of working fluids with mechanical means.

In described fabric and selected rinse fluid contact procedure, apply mechanical energy and make relative motion between selected rinse fluid, residual working fluid and fabric.The step that applies mechanical energy comprises the rotation perforated cylinder.This mechanical energy makes fabric move towards cylinder surface.Be preferably, the centrifugal force that applies 1G at least is so that relative motion between remaining fluid and fabric.

When using rinse fluid, the per kilogram fabric adds the selected rinse fluid less than 20 liters.

With after selected rinse fluid contact, remove a large amount of rinse fluid of selecting and residual working fluid at fabric from fabric.Described step of removing selected rinse fluid and residual working fluid comprises makes fabric contact with dry gas.The step that fabric is contacted with dry gas also comprises this dry gas of heating.

In an example of the inventive method, the temperature of system is controlled at temperature than low 30 of the flash-point of the mixture of described selected rinse fluid and drying fluid.

The present invention also provide a kind of in the cylinder of washing facility the method for laundering of textile fabrics, it comprises the steps:

(a) less than the load capacity of 0.10kg fabric fabric is put into cylinder with every liter of cylinder;

(b) at first scheduled time slot with non-aqueous fluid laundering of textile fabrics;

(c) remove a large amount of non-aqueous fluids at second scheduled time slot from described fabric;

(d) wash described fabric and residual non-aqueous fluid in the 3rd predetermined periods with selected rinse fluid; With

(e) remove a large amount of described selected rinse fluid and residual non-aqueous fluid in the 4th predetermined periods from described fabric;

By the total cycle time of described first scheduled time slot to the, four scheduled time slots less than 80 minutes.

Described non-water conservancy project is selected from as fluid, but be not limited to the ester of terpenes, halogenated hydrocarbons, glycol ether, polyalcohol, ether, glycol ether, fatty acid ester and other long-chain carboxylic acid's ester, fatty alcohol and other long-chain alcohol, short chain alcohol, polar non-solute, siloxanes, hydrogen fluorine ether, dibasic ester, aliphatic hydrocarbon and/or their mixture.Be preferably, select described non-water conservancy project to make it solubility in water less than 20% as fluid.Be more preferably, described non-water conservancy project is selected from as fluid, but be not limited to the ester of terpenes, halogenated hydrocarbons, glycol ether, polyalcohol, ether, glycol ether, fatty acid ester and other long-chain carboxylic acid's ester, fatty alcohol and other long-chain alcohol, short chain alcohol, polar non-solute, siloxanes, hydrogen fluorine ether, dibasic ester, aliphatic hydrocarbon and/or their mixture.Best is, described non-water conservancy project is selected from as fluid, but be not limited to decamethylcyclopentaandoxane, ten dimethyl, five siloxanes, octamethylcy-clotetrasiloxane, decamethyl tetrasiloxane, dipropylene glycol n-butyl ether (DPnB), dipropylene glycol positive propyl ether (DPnP), dipropylene glycol uncle's butyl ether (DPtB), propylene glycol n-butyl ether (PnB), propylene glycol positive propyl ether (PnP), tripropylene glycol monomethyl ether (TPM) and/or their mixture.

(a) polarity greater than 3 and hydrogen bonding less than 9;

(c) hydrogen bonding is 13 to 19, and dispersiveness is 14-22.

Can select described rinse fluid to make it vapour pressure under standard conditions and surpass 5mmHg, surface tension surface tension less than working fluid.Be preferably, described rinse fluid further is selected from, but is not limited to, perfluoroparaffin, Decafluoropentane, hydrogen fluorine ether, MSX 4518, ethyoxyl nine fluorine butane and their mixture.

Described first scheduled time slot is less than 20 minutes, for example about 10 minutes.Described second scheduled time slot is less than 10 minutes, for example less than 7 minutes; Described the 3rd scheduled time slot is less than 10 minutes, for example about 5 minutes; Described the 4th scheduled time slot was less than 40 minutes.Total cycle time was less than 80 minutes.

In a better example of the present invention, select described non-water conservancy project to make it solubility in water less than 20% as fluid.The step of removing non-aqueous fluid from fabric comprises at least one the following step: centrifugal, liquid takes off row, vacuumizes, applies forced hot air, applies compressed air, utilizes gravity to make the washing mother liquor drain, apply steam/washing mother liquor absorbing material or their combination from fabric simply.

In another example of the present invention, select rinse fluid preferably, make it the surface tension of surface tension less than described non-aqueous fluid.Be preferably, further selecting preferably, rinse fluid makes it the vapour pressure that vapour pressure is higher than described non-aqueous fluid.

Comprise with the step of rinse fluid laundering of textile fabrics preferably fabric is contacted with described rinse fluid preferably less than 10 liters in per kilogram fabric.The step of removing described rinse fluid preferably from fabric comprises at least one the following step: centrifugal, liquid takes off row, vacuumizes, applies forced hot air, applies compressed air, utilizes gravity to make the washing mother liquor drain, apply steam/washing mother liquor absorbing material or their combination from fabric simply.The remaining fluid amount was less than 2% when described step of removing rinse fluid preferably and residual non-aqueous fluid was finished.

(a) described fabric is contacted with a kind of non-water conservancy project as fluid, thereby remove crude removal and clean fabric;

(b) described fabric contact being lower than with selected rinse fluid, described selected rinse fluid and will clean the affinity of the affinity of fabric less than described working fluid and described fabric; With optional

(c) make to add in the fluid at least a detergent additive to described non-water conservancy project, to promote to remove crude removal and clean fabric.

Described at least a detergent additive is selected from, but be not limited to builder, surfactant, enzyme, bleach-activating, bleaching catalyst, bleach boosters, bleaching agent, alkali source, antiseptic, colouring agent, spices, fragrance precursor, finishing auxiliaries, lime soap dispersant, component stink controlling agent, odor neutralizer, the polymeric dye transfer inhibitor, crystal growth inhibitor, optical white, heavy metal ion chelating agent, anti-tarnishing agent, antimicrobial, antioxidant, bridging agent, anti redeposition agent, electrolyte, the pH regulator agent, thickener, abrasive material, divalence or trivalent ion, metal cation salt, enzyme stabilizers, corrosion inhibitor, diamines or polyamines and/or their alkoxide, the foam stabilization polymer, solvent, processing aid, fabric softener, fluorescent whitening agent, hydrotropic agent, foam inhibitor, foam improver, fabric softener, antistatic additive, color-fixing agent, the dyestuff wear inhibitor, the friction resistant decolorizer, the fold depressant, anti-fold agent, the dirt polymer-stripping, anti-staining agent, sun-screening agent, anti-decolourant, water and composition thereof.

Described working fluid can be selected from, but be not limited to the ester of terpenes, halogenated hydrocarbons, glycol ether, polyalcohol, ether, glycol ether, fatty acid ester and other long-chain carboxylic acid's ester, fatty alcohol and other long-chain alcohol, short chain alcohol, polar non-solute, siloxanes, hydrogen fluorine ether, dibasic ester, aliphatic hydrocarbon and/or their mixture.It is to have following performance that the other characteristics of fluid are made in this non-water conservancy project: (a) surface tension is less than 35 dynes per centimeter; (b) flash-point is greater than 140 °F.Be preferably, described working fluid is selected from, but be not limited to decamethylcyclopentaandoxane, ten dimethyl, five siloxanes, octamethylcy-clotetrasiloxane, decamethyl tetrasiloxane, dipropylene glycol n-butyl ether (DPnB), dipropylene glycol positive propyl ether (DPnP), dipropylene glycol uncle's butyl ether (DPtB), propylene glycol n-butyl ether (PnB), propylene glycol positive propyl ether (PnP), tripropylene glycol monomethyl ether (TPM) and/or their mixture.

Described rinse fluid can be miscible with described working fluid, and its Hanson solubility parameter (with joule/cubic centimetre expression) satisfies in the following standard:

(a) polarity greater than 3 and hydrogen bonding less than 9;

(c) hydrogen bonding is 13 to about 19, and dispersiveness is 14-22.Described rinse fluid is non-flammable, and can select described rinse fluid to make it to have following performance: (a) viscosity is less than the viscosity of working fluid; (b) vapour pressure surpasses 5mmHg under standard conditions.Be preferably, described rinse fluid is selected from, but is not limited to, perfluoroparaffin, Decafluoropentane, hydrogen fluorine ether, MSX 4518, ethyoxyl nine fluorine butane and their mixture.

The described step that fabric and non-water conservancy project are contacted as fluid comprises that applying mechanical energy makes fabric and working fluid relative motion.The application time of described mechanical energy is enough to remove crude removal from fabric.The application time of described mechanical energy was at least 5 minutes, and it can apply continuously or intermittently apply.

Before making fabric and the rinse fluid of selecting contacts, remove a large amount of working fluids from fabric with mechanical means.

The mechanical means that is used for removing from fabric working fluid comprises the centrifugal force of 5G at least.

Implementing describedly to apply mechanical energy so that make described selected rinse fluid, residual working fluid and fabric relative motion when making fabric and step that the rinse fluid of selecting contacts.This mechanical energy can be centrifugal force, and its rotary speed is enough to make described fabric to move towards the sink surface.Be preferably, the centrifugal force that applies 1G at least makes remaining fluid and fabric relative motion.In the process of laundry wheel apparent motion, the described selected rinse streams scale of construction that this system's per kilogram fabric needs is less than 10 liters at fabric.

When using rinse fluid, the described selected rinse streams scale of construction that the per kilogram fabric adds is less than 20 liters.

The present invention also provides a kind of non-water method, and it comprises the following steps:

(a) described fabric is contacted with the washing mother liquor, described washing mother liquor comprises that non-water conservancy project makes fluid and at least a detergent additive, and described non-water conservancy project is made the surface tension of fluid less than 35 dynes per centimeter, and perhaps flash-point is greater than 140 °F;

(b) described fabric is contacted being lower than with selected rinse fluid, described selected rinse fluid can be miscible with described working fluid, and its Hanson solubility parameter (with the expression of joule/cubic centimetre) satisfies in the following standard: (a) polarity greater than 3 and hydrogen bonding less than 9; (b) hydrogen bonding is less than 13, and dispersiveness is about 14-17; Perhaps (c) hydrogen bonding is 13 to about 19, and dispersiveness is 14-22.

Described non-water conservancy project is made fluid and can be selected from, but be not limited to the ester of terpenes, halogenated hydrocarbons, glycol ether, polyalcohol, ether, glycol ether, fatty acid ester and other long-chain carboxylic acid's ester, fatty alcohol and other long-chain alcohol, short chain alcohol, polar non-solute, siloxanes, hydrogen fluorine ether, dibasic ester, aliphatic hydrocarbon and/or their mixture.Be preferably, described working fluid is selected from, but be not limited to decamethylcyclopentaandoxane, ten dimethyl, five siloxanes, octamethylcy-clotetrasiloxane, decamethyl tetrasiloxane, dipropylene glycol n-butyl ether (DPnB), dipropylene glycol positive propyl ether (DPnP), dipropylene glycol uncle's butyl ether (DPtB), propylene glycol n-butyl ether (PnB), propylene glycol positive propyl ether (PnP), tripropylene glycol monomethyl ether (TPM) and/or their mixture.

Described rinse fluid can be selected from, but is not limited to, perfluoroparaffin, Decafluoropentane, hydrogen fluorine ether, MSX 4518, ethyoxyl nine fluorine butane and their mixture.

The described step that fabric and non-water conservancy project are contacted as fluid comprises that applying mechanical energy makes fabric and working fluid relative motion.The application time of described mechanical energy is enough to remove crude removal from fabric, and be in laundry wheel by roll, stirring, nutating or promote fabric; The reverse rotation laundry wheel; Liquid sprays working fluid or another kind of material applies with rotation fabric or their combination.

After making fabric and working fluid contacts, remove a large amount of working fluids from fabric.The step of removing working fluid from fabric comprises the centrifugal force that applies 5G to fabric at least.

The step that fabric is contacted with the rinse fluid of selecting comprises non-steeped addition step or comprises that the per kilogram fabric adds the step less than 20 liters of selected rinse fluid.

When making described fabric and the rinse fluid of selecting contacts, can apply mechanical energy so that make fabric and described selected rinse fluid relative motion to system.The concentration that the time that described mechanical energy applies is enough to better will to remain in the working fluid in the fabric is reduced to less than 45% of fabric weight, better less than 25%, preferably less than 15%.The application time of mechanical energy was at least 2 minutes.And described mechanical energy can apply continuously or apply intermittence.

After making fabric and the rinse fluid of selecting contacts, a large amount of selected rinse fluid and residual working fluid are removed from fabric.After removing described selected rinse fluid and residual working fluid, this mixture is recycled fabric.Described step of removing selected rinse fluid and residual working fluid comprises makes dry gas pass through fabric.Described dry gas is selected from air, nitrogen or carbon dioxide.The temperature that should control dry gas makes the temperature of fabric be no more than 140 °F; The temperature of dry gas should be with the steam heated of working fluid or the working fluid temperature to 30 scopes of this working fluid flash-point.With before fabric contacts, make dry gas pass through condensing unit again, to remove the steam of part working fluid and selected rinse fluid.

(a) use dirt and fabric are had the fabric that the working fluid washing of affinity will be cleaned;

(b) remove the part working fluid from fabric;

(c) make selected fluid rinse fluid flow through this fabric, described selected rinse fluid and described working fluid are miscible and select described rinse fluid to make the affinity of this rinse fluid and working fluid greater than the affinity of working fluid and fabric;

(d) be enough to make described fabric towards the mobile power in laundry wheel surface to applying through the fabric of handling like this;

(e) make dry gas flow through this fabric, this fabric rolls under time that makes the fabric substantially dry and temperature conditions simultaneously.

Select described working fluid to make it solubility in water less than 20%.Be preferably, described working fluid can be selected from, but be not limited to the ester of glycol ether, polyalcohol, ether, glycol ether, fatty acid ester and other long-chain carboxylic acid's ester, fatty alcohol and other long-chain alcohol, short chain alcohol, polar non-solute, siloxanes, hydrogen fluorine ether, dibasic ester, aliphatic hydrocarbon and/or their mixture.Be preferably, described working fluid is selected from, but be not limited to decamethylcyclopentaandoxane, ten dimethyl, five siloxanes, octamethylcy-clotetrasiloxane, decamethyl tetrasiloxane, dipropylene glycol n-butyl ether (DPnB), dipropylene glycol positive propyl ether (DPnP), dipropylene glycol uncle's butyl ether (DPtB), propylene glycol n-butyl ether (PnB), propylene glycol positive propyl ether (PnP), tripropylene glycol monomethyl ether (TPM) and/or their mixture.

In working fluid, can randomly add at least a detergent additive.Described at least a detergent additive is selected from, but be not limited to builder, surfactant, enzyme, bleach-activating, bleaching catalyst, bleach boosters, bleaching agent, alkali source, antiseptic, colouring agent, spices, fragrance precursor, finishing auxiliaries, lime soap dispersant, component stink controlling agent, odor neutralizer, the polymeric dye transfer inhibitor, crystal growth inhibitor, optical white, heavy metal ion chelating agent, anti-tarnishing agent, antimicrobial, antioxidant, bridging agent, anti redeposition agent, electrolyte, the pH regulator agent, thickener, abrasive material, divalence or trivalent ion, metal cation salt, enzyme stabilizers, corrosion inhibitor, diamines or polyamines and/or their alkoxide, the foam stabilization polymer, solvent, processing aid, fabric softener, fluorescent whitening agent, hydrotropic agent, foam inhibitor, foam improver, fabric softener, antistatic additive, color-fixing agent, the dyestuff wear inhibitor, the friction resistant decolorizer, the fold depressant, anti-fold agent, the dirt polymer-stripping, anti-staining agent, sun-screening agent, anti-decolourant, water and composition thereof.

The step of laundering of textile fabrics comprises and applies mechanical energy that the time that applies is enough to remove crude removal from fabric.Described mechanical energy applies 5 minutes at least, and applies serially or off and on.

The step that machinery is removed working fluid from the fabric comprises and applies the centrifugal force of 5G at least.

Can select described rinse fluid to make it to have in the following Hanson solubility parameter one:

(a) polarity greater than 3 and hydrogen bonding less than 9;

(c) hydrogen bonding is 13 to about 19, and dispersiveness is 14-22.Be preferably, described rinse fluid can be selected from, but is not limited to, perfluoroparaffin, Decafluoropentane, hydrogen fluorine ether, MSX 4518, ethyoxyl nine fluorine butane and their mixture.

Step that selected rinse fluid flows through described fabric is comprised to fabric apply mechanical energy.The consumption of rinse fluid is less than 20 liters in the per kilogram fabric.The concentration that the application time of mechanical energy is enough to better working fluid that will be in fabric is reduced to less than 45% of fabric weight, better less than 25%, preferably less than 15%.The application time of mechanical energy was at least 2 minutes.The speed of the laundry wheel that described mechanical energy produces is enough to make fabric towards this laundry wheel wall motion.

The dry gas that adopts can be selected from air, nitrogen or carbon dioxide.This dry gas increases to the temperature of fabric less than 140 °F; Should control the temperature of dry gas, make the temperature of working fluid be no more than temperature than low 30 of the flash-point of this working fluid.Making fabric carry out drying should be less than 8% of fabric weight, better less than 5%, better less than 2% until the residual working fluid and the amount of the rinse fluid of selecting.

(a) fabric is put into sink;

(b) this fabric is contacted with the washing mother liquor, described washing mother liquor comprises that non-water conservancy project makes fluid and at least a detergent additive, and described non-water conservancy project is made the surface tension of fluid less than 35 dynes per centimeter, and perhaps flash-point is greater than 140 °F;

(c) apply mechanical energy and make washing mother liquor and fabric relative motion;

(d) remove a large amount of washing mother liquors from described fabric;

(e) fabric is contacted with the rinse fluid of selecting with residual washing mother liquor;

(f) apply mechanical energy and make fabric and residual wash fluid relative motion;

(g) remove a large amount of residual washing mother liquors and selected rinse fluid from fabric; With

(h) reclaiming the washing mother liquor also stores so that reuse with selected rinse fluid.

Described working fluid can be selected from, but be not limited to the ester of terpenes, halogenated hydrocarbons, glycol ether, polyalcohol, ether, glycol ether, fatty acid ester and other long-chain carboxylic acid's ester, fatty alcohol and other long-chain alcohol, short chain alcohol, polar non-solute, siloxanes, hydrogen fluorine ether, dibasic ester, aliphatic hydrocarbon and/or their mixture.Be preferably, described working fluid is selected from, but be not limited to decamethylcyclopentaandoxane, ten dimethyl, five siloxanes, octamethylcy-clotetrasiloxane, decamethyl tetrasiloxane, dipropylene glycol n-butyl ether (DPnB), dipropylene glycol positive propyl ether (DPnP), dipropylene glycol uncle's butyl ether (DPtB), propylene glycol n-butyl ether (PnB), propylene glycol positive propyl ether (PnP), tripropylene glycol monomethyl ether (TPM) and/or their mixture.

Select described rinse fluid to make it to have following performance: (a) viscosity is less than the viscosity of working fluid; (b) under standard conditions vapour pressure greater than 5mmHg.Be preferably, described selected rinse fluid is non-flammable, is more preferably, and described selected rinse fluid further is selected from, but is not limited to, perfluoroparaffin, Decafluoropentane, hydrogen fluorine ether, MSX 4518, ethyoxyl nine fluorine butane and their mixture.

The mechanical energy that makes washing mother liquor and fabric relative motion be by roll, stirring, nutating or promote fabric; The reverse rotation sink; Liquid sprays working fluid and applies with rotation fabric or their combination.

Remove the step of washing mother liquor finishes by following at least one step from fabric: centrifugal, liquid takes off row, vacuumizes, applies forced hot air, applies compressed air, utilizes gravity to make the washing mother liquor drain, apply steam/washing mother liquor absorbing material or their combination from fabric simply.

After removing the washing mother liquor, can add the extra work fluid to remove the residual dirt of part or to remove the part detergent additive.

In addition, can add other additive to working fluid, described additive can be selected from, but is not limited to, bleaching agent, cationic surfactant, anion surfactant, heat, air, anti-fouling agent, antistatic additive, reduction viscosity agent, reduction surface tension agent or its combination.

The step that fabric is contacted with the rinse fluid of selecting comprises that the per kilogram fabric adds less than 20 liters of selected rinse fluid, also follow the adding fabric intensifier when implementing this step, it is selected from, but is not limited at least a in following: fabric softener, viscosity reducers, cationic surfactant, anti-fouling agent, textile sizing agent and antistatic additive.

Applying mechanical energy finishes the step of fabric, residual washing mother liquor and selected rinse fluid relative motion in less than 20 minutes.Described mechanical energy can apply continuously or intermittently apply.Apply mechanical energy or add the selected working fluid of rinse fluid in remaining in fabric less than 45% of fabric weight, better less than 25%, preferably less than 15%.

The step of removing residual washing mother liquor and the rinse fluid of selecting from fabric adopts at least one the following step to finish: centrifugal, liquid takes off row, vacuumizes, applies forced hot air, applies compressed air, utilizes gravity to make the washing mother liquor drain, apply steam/washing mother liquor absorbing material or their combination from fabric simply.

After the rinse fluid of removing most of washing mother liquor and selecting, in laundry wheel, introduce one hot dry gas, the temperature of this gas should not surpass the temperature than low 30 of the flash-point of working fluid in sink, until the concentration of residual low combustible working fluid less than 25%.

The step of the rinse fluid that reclaims the washing mother liquor and select comprises the described selected rinse fluid of fractionation from described washing mother liquor.After the described rinse fluid of fractionation, amount of working fluid residual in the selected rinse fluid is less than 25 weight %.The step of described recovery washing mother liquor comprises the employing filter.Described filter can be selected from the cross-flow filter membrane.

(a) fabric is put into sink;

(d) remove a large amount of washing mother liquors from described fabric;

(f) apply mechanical energy and make fabric, residual washing mother liquor and selected rinse fluid relative motion;

(g) with described selected rinse fluid and residual washing Recycling Mother Solution back scrubbing clothing cylinder, make it to flow through fabric;

(h) remove a large amount of residual washing mother liquors and selected rinse fluid from fabric; With

(i) reclaiming the washing mother liquor also stores so that reuse with selected rinse fluid.

Select described selected rinse fluid to make it to have following performance: (a) viscosity is less than the viscosity of working fluid; (b) under standard conditions vapour pressure greater than 5mmHg.Be preferably, described selected rinse fluid is non-flammable, is more preferably, and described selected rinse fluid can be selected from, but is not limited to, perfluoroparaffin, Decafluoropentane, hydrogen fluorine ether, MSX 4518, ethyoxyl nine fluorine butane and their mixture.

Described sink can be in horizontal washing machine a perforated cylinder, can be the perforated cylinder in upright type washing machine, described sink can be the washing chamber of drapery or the drawer (drawer) of placing fabric.

The mechanical energy that makes washing mother liquor and fabric relative motion be by in sink, roll, stirring, nutating or promote fabric; The reverse rotation sink; Liquid sprays working fluid and applies with rotation fabric or their combination.

Remove the step of washing mother liquor finishes by following at least one step from fabric: centrifugal, liquid takes off row, vacuumizes, applies forced hot air, applies compressed air, utilizes gravity to make the washing mother liquor drain, apply steam/washing mother liquor absorbing material, capillary or their combination from fabric simply.

In a better example of the inventive method, can add other additive to working fluid, described additive can be selected from, but be not limited to bleaching agent, cationic surfactant, anion surfactant, heat, air, anti-fouling agent, antistatic additive, reduction viscosity agent, reduction surface tension agent or its combination.

The step that fabric is contacted with the rinse fluid of selecting comprises that the per kilogram fabric adds less than 20 liters of selected rinse fluid, also follow the adding fabric intensifier when implementing this step, it is selected from, but be not limited at least a in fabric softener, viscosity reducers, cationic surfactant, anti-fouling agent, textile sizing agent and the antistatic additive.

Applying mechanical energy makes the step of fabric, residual washing mother liquor and selected rinse fluid relative motion finish at least 2 minutes.Described mechanical energy can apply continuously or intermittently apply.Apply mechanical energy or add the selected working fluid of rinse fluid in remaining in fabric less than 45% of fabric weight, better less than 25%, preferably less than 15%.

The step of removing residual washing mother liquor and the rinse fluid of selecting from fabric comprises at least a following method: centrifugal, liquid takes off row, vacuumizes, applies forced hot air, applies compressed air, utilizes gravity to make the washing mother liquor drain, apply steam/washing mother liquor absorbing material or their combination from fabric simply.

The step of removing residual washing mother liquor and selected rinse fluid from fabric comprises to fabric and applies the centrifugal force of 5G at least.The step of removing residual washing mother liquor from fabric comprises makes dry gas pass through fabric.Described dry gas is selected from air, nitrogen or carbon dioxide.The temperature that should control dry gas makes the temperature of fabric be no more than 140 °F.The temperature that should control dry gas makes the temperature of working fluid be no more than temperature than low 30 of the flash-point of working fluid.

The step of the rinse fluid that reclaims the washing mother liquor and select reclaims described selected rinse fluid earlier before comprising the recovery operation fluid.During the method for the rinse fluid that described recovery is selected comprises the following steps one: fractionation, filtration, cooling, Gravity Separation, absorption, absorption, air stripping, contact with the filling column and/or their combined method.Be preferably, reclaim selected rinse fluid and be included in the boiling point of a little higher than described selected rinse fluid or under the temperature that is lower than 30 ℃ of working fluid flash-points, (get the lower temperature among both) and carry out fractionation.The recovery operation fluid includes, but are not limited to be used in combination the following step: cooling, absorption, filtration, absorption and disinfection.

The present invention also provides a kind of dry-cleaning method, and it comprises the following steps:

(a) fabric is put into sink;

(b) make this fabric and non-water conservancy project make fluid and contact with at least a detergent additive, described non-water conservancy project is made the surface tension of fluid less than 35 dynes per centimeter, and perhaps flash-point is greater than 140 °F;

(d) remove a large amount of washing mother liquors from described fabric;

(f) when contacts, fabric and selected rinse fluid under the power of 1G at least, laundry wheel is rotated;

(a) polarity greater than 3 and hydrogen bonding less than 9;

(c) hydrogen bonding is 13 to about 19, and dispersiveness is 14-22.

Be preferably, described selected rinse fluid can be selected from, but is not limited to, perfluoroparaffin, Decafluoropentane, hydrogen fluorine ether, MSX 4518, ethyoxyl nine fluorine butane and their mixture.

In better example of the present invention, can add other additive to working fluid, described additive can be selected from, but be not limited to bleaching agent, cationic surfactant, anion surfactant, heat, air, anti-fouling agent, antistatic additive, reduction viscosity agent, reduction surface tension agent or its combination.

In a better example of the present invention,, fabric is moved towards the laundry wheel wall rotating laundry wheel above under the centrifugal force of 1G.Described selected rinse fluid is sprayed on the fabric in the laundry wheel wall at described fabric.

The step that fabric is contacted with the rinse fluid of selecting comprises that the per kilogram fabric adds less than 10 liters of selected rinse fluid, also follow the adding fabric intensifier when implementing this step, it is selected from, but is not limited at least a in following: fabric softener, viscosity reducers, cationic surfactant, anti-fouling agent, textile sizing agent and antistatic additive.

In a better example of the present invention, make described fabric on laundry wheel against at least 2 minutes, and apply mechanical energy continuously or intermittently.

Apply mechanical energy or add the selected working fluid of rinse fluid in remaining in fabric less than 45% of fabric weight, better less than 25%, preferably less than 15%.

The step of removing residual washing mother liquor and the rinse fluid of selecting from fabric comprises at least a following method: centrifugal, liquid takes off row, vacuumizes, applies forced hot air, applies compressed air, utilizes gravity to make the washing mother liquor drain, apply steam/washing mother liquor absorbing material or their combination from fabric simply.The step of removing residual washing mother liquor and selected rinse fluid from fabric is included in fabric and applies the centrifugal force of 5G at least.

The step of removing residual wash fluid from fabric comprises makes dry gas pass through fabric.Described dry gas is selected from air, nitrogen or carbon dioxide.The temperature that should control dry gas makes the temperature of fabric be no more than 140 °F.The temperature that should control dry gas makes the temperature of working fluid be no more than temperature than low 30 of the flash-point of working fluid.Make dry gas by fabric until the amount of residual working fluid and selected rinse fluid less than 8% of fabric weight, better less than 5 weight %, better less than 2 weight %.

The step of the rinse fluid that reclaims the washing mother liquor and select reclaims described selected rinse fluid earlier before comprising the recovery operation fluid.During the selected rinse fluid of described recovery comprises the following steps one: fractionation, filtration, cooling, Gravity Separation, absorption, absorption, air stripping, contact with the filling column and/or their combination.Reclaiming selected rinse fluid is included in the boiling point of a little higher than described selected rinse fluid or (gets the lower temperature among both) and carry out fractionation under the temperature that is lower than working fluid flash-point 30.

The present invention also provides the non-water conservancy project of a kind of usefulness to make the method for fluid wash fabric, it comprises the steps: that (a) makes fabric contact with the rinse fluid of selecting, the rinse fluid that should select is chosen as with described working fluid miscible, and the addition of selected rinse fluid is less than 5 liters described in the per kilogram fabric; (b) remove a large amount of selected rinse fluid and residual working fluid from fabric.

Select described selected rinse fluid, make it to have in the following performance at least one: (a) surface tension is less than the surface tension of working fluid; (b) viscosity is less than the viscosity of working fluid; (c) vapour pressure surpasses 5mmHg under standard conditions, perhaps (d) it be non-flammable.Be preferably, further selecting described selected rinse fluid to make it can to make fluid miscible with non-water conservancy project, and its Hanson solubility parameter (representing with joule/cubic centimetre) satisfies in the following standard: (a) polarity greater than 3 and hydrogen bonding less than 9; (b) hydrogen bonding is less than 13, and dispersiveness is about 14-17; Perhaps (c) hydrogen bonding is 13 to about 19, and dispersiveness is 14-22.Be more preferably, described selected rinse fluid can be selected from, but is not limited to, perfluoroparaffin, Decafluoropentane, hydrogen fluorine ether, MSX 4518, ethyoxyl nine fluorine butane and composition thereof.

The step that fabric is contacted with selected rinse fluid comprises described selected rinse fluid is sprayed on the fabric, perhaps comprises applying mechanical energy so that fabric and described selected rinse fluid relative motion.Described mechanical energy applies by rotation porous laundry wheel.Apply the working fluid of mechanical energy in remaining in fabric less than 45% of fabric weight, better less than 25%, preferably less than 15%.

The step of removing selected rinse fluid from fabric comprises at least a following method: centrifugal, liquid takes off row, vacuumizes, applies forced hot air, applies compressed air, utilizes gravity to make the washing mother liquor drain, apply steam/washing mother liquor absorbing material, capillary or their combination from fabric simply.

The present invention also provides the non-water conservancy project of a kind of usefulness to make the method for fluid wash fabric, it comprises the steps: that (a) makes fabric contact with the rinse fluid of selecting, should selected rinse fluid be chosen as with described working fluid miscible, and when adding described selected rinse fluid, fabric is with the speed rotation towards the motion of laundry wheel wall; (b) remove selected rinse fluid and residual working fluid from fabric.

Select described selected rinse fluid, make it to have in the following performance at least one: (a) surface tension is less than the surface tension of working fluid; (b) viscosity is less than the viscosity of working fluid; (c) vapour pressure surpasses 5mmHg under standard conditions, perhaps (d) it be non-flammable.Be preferably, further selecting described selected rinse fluid to make it can be miscible with working fluid, and its Hanson solubility parameter (with the expression of joule/cubic centimetre) satisfies in the following standard: (a) polarity greater than 3 and hydrogen bonding less than 9; (b) hydrogen bonding is less than 13, and dispersiveness is about 14-17; Perhaps (c) hydrogen bonding is 13 to about 19, and dispersiveness is 14-22.Be more preferably, described selected rinse fluid can be selected from, but is not limited to, perfluoroparaffin, Decafluoropentane, hydrogen fluorine ether, MSX 4518, ethyoxyl nine fluorine butane and composition thereof.

The step that fabric is contacted with selected rinse fluid comprises described selected rinse fluid is sprayed on the fabric.The step of removing selected rinse fluid from fabric comprises at least a following method: centrifugal, liquid takes off row, vacuumizes, applies forced hot air, applies compressed air, utilizes gravity to make the washing mother liquor drain, apply steam/washing mother liquor absorbing material or their combination from fabric simply.

Fig. 1 provides the example (not showing shell) of washing unit 12.The bowl assembly 24 that shows comprises washing chamber 26, is used to hold the material that will wash, as the fabric (not shown).Described bowl assembly links to each other with external structure by various cantilevers 25.Described washing chamber 26 also comprises around the flexible rubber boot 28 of opening 30 circumferential edge of washing chamber 26.Described rubber case 28 is used for sealing being provided and the pipeline that joins with access door being provided around the opening of washing chamber 26.Described washing chamber 26 also comprises back portion 32.The inside of washing chamber 26 is the basketrys 34 with one or more perforation.Described perforation can center on evenly distribution of basketry 34, random or otherwise scatter.Described perforation makes inside and washing chamber's 26 fluid communication of washing basketry 34.

Fig. 1 gives washing unit recirculating system.In each example of the present invention as herein described, the washing mother liquor can be from the washing chamber 26 be discharged and washing chamber 26 is gone back in recirculation.One of them example is described below.Washing chamber 26 comprises the outlet (not shown), and it and washing chamber discharge pond 36 fluid communication.Described washing chamber discharges pond 36 can be designed to have big volume capacity, and it can store the washing mother liquor that all add washing chamber 26 like this.For example, under the situation of system down, described washing mother liquor can be disposed to this washing chamber and discharge in the pond 36.Described outlet (not shown) also can comprise sealable door of a fan or lid.Therefore, under the situation of system down, the washing mother liquor can be entered and discharge pond 36, close outlet, take out fabric.

Can randomly give 36 configurations simple electric coil heater (not shown) in described discharge pond with the washing mother liquor in the heating discharge pond.In each example, the washing mother liquor recirculation of heating should be got back to that this fabric is kept at elevated temperatures, or because various washing assisants just play a role under the environment of heating (perhaps playing a role better).But heater also heated scrub mother liquor makes auxiliary agent inactivation in this washing mother liquor.Therefore, can preestablish heater according to required purposes is used for activating or inactivation.Described heater is not limited to the electric coil heater.

Discharging pond 36, washing chamber and filter 38 (for example lint filter) fluid communication are used for the big particle of elimination (for example button, clip, velveteen, food etc.).Filter 38 can be that the user gets at so that remove, clean and/or change.

Therefore, should preferably filter 38 be set, discharge pond 36 and filter 38 thereby passive discharging is all entered in front near washing unit 12 near the bottom.In another example, filter 38 also can be to reclaiming unit 14 back flushes, thereby can remove any material reclaiming unit 14.In another example, the back flush in the washing unit of described filter pumps into the recovery unit subsequently to discharging the pond.This moment wittingly limited subscriber to the dismounting of filter 38.

The washing mother liquor feeding recovery unit 14 that will filter is subsequently further handled or it is fed recirculation pump 40.Although not expression among the figure also can be equipped with a multichannel valve and further be handled so that will wash mother liquor guiding recovery unit 14 between filter 38 and pump 40.After the processing, the washing mother liquor can return recirculation circuit in any entrance in loop.Can control recirculation pump so that continued operation, pulse operation or controlled operation to be provided.Get back to the described example of Fig. 1, recirculation pump 40 will wash the mother liquor pump to multichannel recirculation (egr) valve 42.According to different programs, recirculation (egr) valve 42 can be given tacit consent to (default) and remain in the recirculation circuit will wash mother liquor, and perhaps acquiescence will be washed mother liquor and be delivered to another zone (for example reclaiming unit 14).For example, recirculation (egr) valve 42 can comprise recirculation outlet 44 and reclaim outlet 46.In needing the example of recirculation, the washing mother liquor turns to distributor 48 by recirculation outlet 44.

As top relate to when discharging pond 36 as described in, described distributor also can be equipped with the heater (not shown) to regulate and distribute material temperature in the device.After mixing or heating (words of mixing or heating if desired), the material in the distributor leaves distributor by export distributor 50.Export distributor 50 can be used the outflow of gate control material.At this moment, but each personal gate control of each chamber of distributor.Material flows out into loading port 52, this loading port and washing chamber's 26 fluid communication through exporting 50 from distributor.As shown in Figure 1, loading port 52 generally is arranged in rubber case 28.Distributor can be that the user gets at so that if necessary, replenish this washing chamber.

Loading port also can comprise one or more dispensing head (not shown)s, for example nozzle or sprayer.This dispensing head is used to disperse (repel) washing mother liquor or the particle auxiliary agent is maybe reduced to minimum with obstruction so that eliminate.

Fig. 2 provides the view in dry loop.In an example, the air from washing chamber 26 communicates described flexible conduit and lint filter head housings 66 fluid communication that contain lint filter 68 with flexible conduit.Lint filter 68 can be captured on the parts (for example air blast, condenser, heater etc.) of bulky grain with anti-drying loop and be gathered particle.Lint filter head housings 66 also can comprise filter plug, is used for locking lint filter 58 downwards when washing machine moves, and avoids closed system to break.In addition, when washing machine was out of service, the user can clean lint filter 68 as traditional drying machine.Lint filter 68 also can comprise sealing gasket on the interface between lint filter 68 and the washing cell enclosure.Although shown a filter, in inlet air flow path, can have a plurality of lint filters with collecting granules as much as possible, and these lint filters can be arranged in any position in path or loop, perhaps can be contained in the condenser structure.Lint filter head housings 66 is identical with air blast 72 fluids.Before air blast 72, use a plurality of lint filters the amount that enters the particle in the remainder of dry cycle can be reduced to minimum.

Fig. 2 gives condenser system.Fig. 2 shows the illustrative view of condenser unit, specifically is presented at first condenser unit 82 and second condenser unit 84 in the condensation body 85.Fig. 2 also shows the condenser pan 86 that generally is positioned at condensation body 85 bottoms.At this moment, air blast 72 is blown into condenser system with air, and passes described condenser unit.In an example, leaked-in air diffuses to described condenser unit by a diffuser with air.In another example, described condensation body 85 is divided into two or more chambers by one deck barrier film at least.Therefore, air is blown into this system from air blast 72, enters condensation body 85, thereby by first condenser unit 82.Condensation and condensate liquid take place splash into condenser pan 86.Simultaneously, air is sent out (randomly by a molding sheet or baffle plate) to second condenser unit and pass this second condenser unit 84 by the first condenser chamber.The condensate liquid of second condenser unit 82 splashes into condenser pan 86.Condensate liquid in the condenser pan 86 is sent to condenser sump 88.Described condenser sump can be discharged the pond (not shown) with the washing chamber and be separated or become as a whole with it.Air road heater via conduit 90 (it finally links to each other with heater 92) by second condenser unit 84.Condenser unit 80 can be that the user gets at, in case and washing machine 10 is out of service just can enter.Fig. 2 shows condenser unit 82 part taking-up from condensation body 85.

Although what show among Fig. 2 is

vertical condenser unit

82,84, condenser unit can have a certain degree with air-flow.At this moment, each piece plate 94 of condenser unit contacts at most with air-flow.In addition, owing to produce condensation onboard, the drop that condensation forms has further increased the surface area that contacts with air-flow.This promotes further condensation again.In addition, when the size of drop increases to can keep static size above it on plate 94 time, this drop will following to condenser pan.The liquid stream that liquid drop movement forms has also increased the surface area of contact air-flow, thereby promotes further condensation.

In addition, although Fig. 2 demonstration is washing chamber's conduit 96, heater can have a plurality of outlets to enter same conduit 96.In addition, a conduit 96 can be divided into a plurality of washing chambers inlet 98.In fact, should have a plurality of inlets and enter the washing chamber, so that make the air-flow maximum and obtain good drying effect.

Fig. 3 provides an example that reclaims unit 14 (having removed the recovery cell enclosure).The fluid that is reclaimed by washing unit 12 better is sent to optional reject chute 100.In some cases, described reject chute can be replaced by selected rinse fluid accumulator tank.Described optional reject chute 100 comprises reject chute end face 102, reject chute bottom surface 104 and reject chute outlet (not shown).Described reject chute 100 comprises and the compatible material of working fluid that adopts.In addition, described reject chute should be suitable for the various working fluids that are used for this purposes that this specification is mentioned.Described reject chute better is transparent or translucent, thereby can easily determine the liquid level of fluid in the reject chute.In addition, this reject chute also can comprise inside or outside liquid level indicator, for example scale mark.The volume of this reject chute can add the cumulative volume of any auxiliary agent of use greater than working fluid, thereby all fluids of washing machine all can suitably be stored in this reject chute.Reject chute bottom surface 104 can be shaped so that with the guiding of the material in reject chute reject chute outlet (not shown).In an example, waste outlet generally is positioned at the bottom of reject chute, thereby by gravity fluid is exported by reject chute.Reject chute also can comprise relief valve 106, to discharge the pressure of accumulating in the reject chute.

As for the structure of reject chute, if this groove is not unified molded, then its sealing should be closely and resistance to wear, dissolving, lixiviate etc.The inwall of this groove can have microtexture to very smooth, no big blemish, thereby makes the waster material fluid that enters this groove flow to trench bottom easily.In addition, this inwall should clean easily.Therefore, this groove can comprise a series of strigils, and be used for regularly swiping sidewall and bottom surface stick to sidewall and bottom surface to guarantee seldom or not have waste material, and guarantees this waste material is guided to the groove outlet.Described strigil can be by programme-control.Although do not show among the figure, described groove outlet also can comprise dismountable particulate filter.In addition, described groove also can comprise one deck insulation material, helps to remain in the groove and the required temperature of each system's heating/cooling device around the groove.

Outlet of described groove and high-pressure pump 108 fluid communication, this high-pressure pump with the product pump in the reject chute to cooler 110 with this reject chute material of further cooling.This cooler better places incubator to keep colder environment.

Fig. 4 shows the part rear view of described recovery unit.This moment, the reject chute material through cooling pumped into cooler multichannel valve 112 by described cooler.Between cooler and multichannel valve 112, be the temperature sensor (not shown).The default location of this valve returns the reject chute material diversion of cooling to reject chute 100.Therefore, get back to reject chute 100 through the reject chute material of cooling.Reject chute 100 can comprise that also temperature sensor is to measure the reject chute material temperature.After reaching temperature required (for example being lower than 0 ℃), multichannel valve 112 can be with the reject chute material diversion through cooling off to cross-flow filter membrane 114.Be preferably the temperature that is lower than 0 ℃ and can freeze, can not infiltrate this cross-flow filter membrane like this because of water.

Fig. 4 also shows and removes the cooler 110 of back behind the plate to show the cooler material.Cooler 110 can comprise cooling coil 116, and it comprises coil pipe inlet (not shown) and coil pipe outlet 118.Cooling coil 116 can comprise an outer tube 120, thereby cooling coil 116 and outer tube 120 form co-axial alignment.Between coil pipe 116 and outer tube 120 is cooling agent.Therefore, by the flow through reject chute material of coil pipe 116 of the coolant cools of outer tube 120 carrier bands.The compressed machine of cooling agent system (it comprises coolant coil 122 and compressor for cooling fluid 124) is circulated to cooler 110.Therefore, the cooling agent of compressor 124 coolings in coolant coil 122.The cooling agent of this cooling subsequently is pumped to the coaxial void between outer tube 120 and the cooling coil 116, thereby finally cools off described reject chute material.The loop of this acquiescence continues the required time.

Also can understand and to adopt other cooling technology cooling reject chute material as required.For example, replace the compressor assembly of water-cooled, can use the air-cooled heat exchanger that is similar to radiator.Perhaps, can use the water cooling working fluid that in cooling coil, flows, perhaps with thermoelectric heater, expansion valve, cooling tower or hot acoustic device cooling reject chute material.

Fig. 4 and Fig. 5 show flowing of reject chute material.As previously described, after reaching required temperature, multichannel valve 112 branches to cross-flow filter membrane 114 with materials flow.In another example, can set up a recirculation circuit, make the reject chute materials flow through subcooler 110 recirculation, but not send it back reject chute 110.Like this, cooler multichannel valve 112 can have another bypass, is used for material diversion is returned pipeline between high-pressure pump 108 and the cooler 110.In case reach required temperature, multichannel valve 112 branches to cross-flow filter membrane 114 with materials flow.Cross-flow filter membrane 114 has near-end 126 and far-end 128.When the reject chute material pumps into near-end 126, begin to filter the waste material that forms permeate stream and concentrate.

Described permeate stream flow to cross-flow filter membrane bottom downwards and flows out cross-flow filter membrane 114, enters permeate stream pump 130.This permeate stream pump 130 pumps into permeate stream filter 132 (for example carbon bed filter) with permeate stream.Permeate stream enters permeate stream filter 132 through permeate stream filter near-end 134, moves along filter medium, and flows out at permeate stream filter far-end 136.It is fully miscible and pass the organic residue (for example smell, aliphatic acid, dyestuff, petroleum-based products etc.) of cross-flow filter membrane with the body solvent to select the permeate stream filter to make it the elimination meeting.This filter can comprise active carbon, aluminium oxide, silica gel, diatomite, aluminosilicate, polyamide, aquogel, zeolite, polystyrene, polyethylene, divinylbenzene and/or molecular sieve.In any example, can make permeate stream flow through several permeate stream filters in order or out of turn.In addition, the described permeate stream filter lamination that can be one or more layers filter medium.Therefore, permeate stream can be through the filter and/or the filter one or more laminations and/or non-lamination of one or more orders.The geometry of active carbon preferably that is used to remove liquid and steam is spherical or cylindric.The density of these systems can be 0.25-0.75g/cm ³, better 0.40-0.70g/cm ³Surface area can be 50-2500m ²/ g is preferably 250-1250m ²/ g.Granularity is the 0.05-500 micron, is preferably the 0.1-100 micron.Packed bed pressure drop preferably is 0.05 * 10 ⁶-1.0 * 10 ⁶Pa is preferably 0.1-1000Pa.Porosity is 0.1-0.95, is preferably 0.2-0.6.

After the filtration and infiltration materials flow, this permeate stream is sent to cleaning slot 138, store this permeate stream, i.e. the working fluid of this basic purifying.The working fluid of described purifying should be removed and surpass 90% dirt, is preferably 95-99%.If necessary, this working fluid pumps into washing unit 12 through fill pump 140 by cleaning slot 138.

Also select cross-flow filter membrane 114 to make it the elimination working fluid as permeate stream.The cross-flow filter membrane can be polymer-matrix or ceramic base.Also should select cross-flow filter membrane 114 to make it elimination particle or other big molecular entity; for the cross-flow filter membrane of polymer-matrix; its effectiveness is especially relevant with the aperture of the quantity of this unit hollow core fiber, channel height (promptly if columniform, then its fibre diameter), fibre length and fiber.Therefore, preferably the quantity of fiber is enough to produce enough flows by this filter membrane, and can not reflux in a large number or stop up at near-end.The selector channel height makes it to allow particle to pass through and can not reflux in a large number or stop up at near-end.Select the aperture to pass through as permeate stream with permeate stream outflow and a large amount of other materials of nothing to guarantee working fluid.Therefore, filter membrane is a kind of like this filter membrane preferably, and it can remove all particulates matter, separate micella, divide dried up and other hydrophilic substance, the lyophobic dust beyond the mask work fluid dissolve area, remove and degerm and other microorganism.Nanofiltration is to remove preferably to degerm and viral method.

Ceramic filtration membrane provides high seepage discharge, and anti-most of solvents also have the structure of relative stiffness, thus easier cleaning.The polymer-matrix filter membrane provides high cost efficiency, the property handled and relatively easy cleaning.The polymer-matrix filter membrane can comprise polysulfones, polyether sulfone and/or methyl ester or their any mixture.The aperture of filter membrane can be the 0.005-1.0 micron, better the 0.01-0.2 micron.The flow of filter membrane is 0.5-250 kilogram working fluid per hour, and minimum discharge is 30kg/hr (promptly about 10-5000kg/m preferably ²).The mouth of pipe of fiber footpath or channel height are thereby that 0.05-0.5mm can pass through particle.The length of filter membrane is by the size decision of washing machine.For example, filter membrane can be looked is enough to adaptive diagonal.Be preferably, length can be 5-75 centimetre, better 10-30 centimetre.The surface area of filter membrane can be 10-2000cm ², be preferably 250-1500cm ², 300-750cm more preferably ²

Preferably the filter membrane fiber size depend on material that needs separate by molecular weight.As previously described, fiber is a kind of like this fiber preferably: it can remove all particulates matter, separate micella, divide dried up and other hydrophilic substance, the lyophobic dust beyond the mask work fluid dissolve area, remove and degerm and other microorganism.Described lyophobic dust mainly is the human body dirt, and it is the mixture of aliphatic acid.Part SCFA (C ₁₂And C ₁₃) have low molecular weight (200 or lower), and the molecular weight of partial fatty acid surpasses 500.The surfactant preferably that is used for these systems is the silicone surfactant that mean molecule is of a size of 500-20000.

For example, in the washing machine of siloxy group working fluid, fiber should be able to see through molecular weight less than 1000, better less than 500, better less than 400 material.In addition, fiber should be hydrophobic preferably, perhaps has hydrophobic coating and sees through with waterproof.For the dirt that penetrates fiber, absorbent and/or absorbent filter will be removed this residual dirt.Part better hydrophobic coating is aluminum oxide, nitric acid silicon, carborundum and zirconium.Therefore, an example of the present invention is a kind of cross-flow filter membrane, is used for the form recovery operation fluid with permeate stream.

Get back to Fig. 4 and Fig. 5, permeate stream is directed to the permeate stream pump, and concentrate is along another path flow.Concentrate flows out cross-flow filter membrane far-end 128 and is sent to concentrate multichannel valve 142.At default location, concentrate multichannel valve 142 branches to reject chute 100 with concentrate.The concentrate that enters reject chute 100 is sent back to foregoing recovery method subsequently.In case concentrate multichannel valve 144 starts, this concentrate is sent to dead end filter 144.

Dead end filter 144 can be a container, comprises internal ramp 146.After concentrate entered dead end filter 144, concentrate was collected on the internal ramp 146.According to the type of the filter that uses, permeate stream can be passed through filter 146, and is sent to reject chute 100 or finally is sent to cleaning slot.Concentrate will be retained on the dead end filter.Make it to lead to reject chute in order to help to extract residual liquid, can vacuumize in inside so that extract more liquid from concentrate.In addition, dead end filter 144 can comprise squeezer, and it can squeeze this concentrate downwards and make it closely knit and squeeze liquid to make it by internal ramp 146.Dead end filter 144 can comprise that also one or more shredding machines or scraping machine are with the side of downward scraping filter and shred closely knit relic.At this moment, in next step operation of squeezer, squeezer is closely knit once more with further extracting liq with the relic of chopping.Above-mentioned dead end filter is that the user gets at, thereby can clean this dead end filter, replacement etc., and removes residual fragment.In addition, can finish the dead end filtration in low-temperature evaporation step or burn down step, and need not by means of vacuumizing.Described low-temperature evaporation step comprises: capture concentrate/retentate and feed one low thermal air current to filter subsequently, the condition of described low thermal air current is identical with described dry air.Can extract working fluid, send it to condenser with its condensation and send cleaning slot back to then.

Another problem that needs to solve is to reuse filter bed.Some is possible prevents to stop up or the means that reduce obstruction are to add chemical substance or Chemical cleaning, reduction temperature and water is become ice, captures ice crystal with filter method subsequently, and this filter membrane of perhaps special surface-coated is to reduce the risk of stopping up.The method of regeneration filter includes, but not limited to heat, regulate pH, changes ion concentration, vacuumizes, applies mechanical force, applies electric field or their combination.

Fig. 6-10 shows the method for various washings of the present invention and dry fabric.In Fig. 6-10, implementing the first step of the present invention is to add fabric in washing machine 200 or chamber.Next step comprises adding washing mother liquor 202.Described washing mother liquor better is the mixture of working fluid and at least a detergent additive of choosing wantonly.Described working fluid better is non-aqueous, and surface tension is less than 35 dynes per centimeter, and flash-point is at least 140 or bigger (according to the classification of NFA association).

More particularly, described working fluid is selected from ester, fatty acid ester and other long-chain carboxylic acid's ester, fatty alcohol and other long-chain alcohol, short chain alcohol, polar non-solute, siloxanes, hydrogen fluorine ether, dibasic ester, aliphatic hydrocarbon and/or their mixture of terpenes, halogenated hydrocarbons, glycol ether, polyalcohol, ether, glycol ether.Be preferably, described working fluid is selected from, but be not limited to decamethylcyclopentaandoxane, ten dimethyl, five siloxanes, octamethylcy-clotetrasiloxane, decamethyl tetrasiloxane, dipropylene glycol n-butyl ether (DPnB), dipropylene glycol positive propyl ether (DPnP), dipropylene glycol uncle's butyl ether (DPtB), propylene glycol n-butyl ether (PnB), propylene glycol positive propyl ether (PnP), tripropylene glycol monomethyl ether (TPM) and/or their mixture.

Described detergent additive is optional from builder, surfactant, enzyme, bleach-activating, bleaching catalyst, bleach boosters, bleaching agent, alkali source, antiseptic, colouring agent, spices, fragrance precursor, finishing auxiliaries, lime soap dispersant, component stink controlling agent, odor neutralizer, the polymeric dye transfer inhibitor, crystal growth inhibitor, optical white, heavy metal ion chelating agent, anti-tarnishing agent, antimicrobial, antioxidant, bridging agent, anti redeposition agent, electrolyte, the pH regulator agent, thickener, abrasive material, divalence or trivalent ion, metal cation salt, enzyme stabilizers, corrosion inhibitor, diamines or polyamines and/or their alkoxide, the foam stabilization polymer, solvent, processing aid, fabric softener, fluorescent whitening agent, hydrotropic agent, foam inhibitor, foam improver, fabric softener, antistatic additive, color-fixing agent, the dyestuff wear inhibitor, the friction resistant decolorizer, the fold depressant, anti-fold agent, the dirt polymer-stripping, anti-staining agent, sun-screening agent, anti-decolourant and composition thereof.

Washing chamber 26 (as shown in Figure 1) applies mechanical energy 204 by the rotation of itself to the mixture of working fluid and fabric.The form of described mechanical energy can be roll, stirring, promotion, nutating, reverse rotation laundry wheel or liquid sprays working fluid so that fabric movement.The time that mechanical energy applies is 2-20 minute.Remove the washing mother liquor in step 206 subsequently.That the possible method of removing the washing mother liquor includes, but are not limited to is centrifugal, liquid takes off row, vacuumize, apply forced hot air, apply compressed air, utilize gravity to make simply washs mother liquor and drains, applies steam sorbing material or their combination from fabric.In traditional washing washing machine, take off row's cycle altogether less than 10 minutes.This time comprises 1-3 minute discharging and at least 7 minutes swing circle.Described non-washing cycle and this traditional system class are seemingly.In step 208, the per kilogram clothing adds the selected rinse fluid less than 20 liters in the washing chamber.One of satisfying in the following standard according to and its Hanson solubility parameter miscible with working fluid (representing with joule/cubic centimetre) selects described selected rinse fluid (PRF): polarity greater than 3 and hydrogen bonding less than 9; Hydrogen bonding is less than 13, and dispersiveness is about 14-17; Perhaps hydrogen bonding is 13 to about 19, and dispersiveness is 14-22.More particularly, select described selected rinse fluid to make it to have following performance: viscosity is less than the viscosity of working fluid; Vapour pressure surpasses 5mmHg under standard conditions; Surface tension is less than the surface tension of working fluid or non-flammable.More particularly, described selected rinse fluid is selected from perfluoroparaffin, Decafluoropentane, hydrogen fluorine ether, MSX 4518, ethyoxyl nine fluorine butane and their mixture.

Then, apply mechanical energy to system, the time that applies be 2-20 minute to mix described selected rinse fluid, residual washing mother liquor and fabric 210.Apply serially or off and in mechanical energy described in the whole cycle.Randomly can add fabric intensifier and mix, perhaps after removing selected rinse fluid, add this fabric intensifier with selected rinse fluid in step 214.Some possible fabric intensifier includes, but not limited to fabric softener, viscosity reducers (for example cationic surfactant), anti-fouling agent, textile sizing agent, surface tension reducer and antistatic additive.Remove residual washing mother liquor and selected rinse fluid in step 212.Feed dry air in step 216, and the solvent warp let-off condenser of from fabric, removing as shown in Figure 2 82, and in step 218, store so that reuse.Be preferably, but be not limited to, reclaim selected rinse fluid in step 222, and may in same treatment step or treatment step subsequently, reuse.After the rinse fluid that recovery is selected, step 224 comprises reclaiming washs mother liquor and the dirt of step 226 disposal in the end.At last, when the end of this method, from laundry room, take out the fabric of doing 220.Recovery technology will be described in the back of this specification preferably.

The method that Fig. 7 shows is identical with Fig. 6, and only it adopts an extra step to reduce the amount of required selected rinse fluid (PRF).In this concrete example, shown in selected rinse fluid in step 228 recirculation, and get back in the washing chamber 26, apply mechanical energy in step 208 simultaneously.

Fig. 8 provides a kind of dynamic rinse method, and separate selected rinse fluid and be recycled to the washing chamber from the washing mother liquor in step 230 this moment after step 212 is removed washing mother liquor and selected rinse fluid.Can adopt multiple separating step, include but not limited to, filtration, Gravity Separation, cooling, absorption, absorption, distillation, flotation, evaporation, the 3rd component extracting, infiltration, high speed liquid chromatography and/or their combination.

Fig. 9 has provided an example preferably, wherein the consumption minimum of Xuan Ding rinse fluid.In the method, step 206 is removed the washing mother liquor from fabric after, add at step 232 per kilogram clothing and to be less than 10 liters selected rinse fluid.In step 234, laundry wheel rotates under the centrifugal force greater than 1G at least.Shown in laundry wheel should rotate in this speed, can promote the apparent motion of fabric towards perforated cylinder.

In method shown in Figure 10, it sprays the rinsing technology and adopts the selected rinse fluid of adding, and does not have the advantage of additional recirculated fluid.Spray in the rinse methods Fig. 9 and two kinds shown in Figure 10, by making described selected rinse fluid further remove the washing mother liquor, and be enough to make fabric to discharge liquid and further improve this effect towards the centrifugal force of laundry wheel apparent motion by applying by fabric.

In Fig. 9 and method shown in Figure 10, equipment should comprise distributor preferably, and it can make the depth profile of selected rinse fluid along whole fabric.This better realizes by selected rinse fluid being injected on the fabric against laundry wheel when surface at fabric.

In Fig. 6-10, the concentration (in the kilogram amount of the working fluid of per kilogram clothing) that the duration of step 210 should be able to guarantee to remain in the washing mother liquor on the fabric drops to 45% at least, better is lower than 25%, is preferably lower than 15%.

Figure 11 shows the equipment of implementing said method.In Figure 11, control device 250 is regulated the time that each step is implemented, the rolling form and the physical parameter of this device perception laundry wheel, and the method for selection use etc.Laundry wheel 260 is subjected to provide the Motor Drive of mechanical energy in said method.Pump 262 is removed working fluid, washing mother liquor and selected rinse fluid from system, and above-mentioned material is delivered to recovery unit 258.Described pump can be positive displacement, motion screw formula (kinetic screw) or unlimited screw (open screw) mechanical pump.Pump is not limited to mechanical pump, also can adopt other pump, for example piezoelectric pump, electric hydraulic pump, thermal pump, magnetic hydraulic pump and electroosmotic pump.In rinse fluid and working fluid separate storage selected described in the stocking system 256, and use delivery pump 25 that it is delivered to laundry wheel.Delivery pump makes working fluid and/or selected rinse fluid pass through distribution system 252, and detergent additive and/or fabric intensifier can add described washing system through this distribution system.

In some cases, described working fluid and selected rinse fluid are immiscible, can eliminate the compatibility gap by changing temperature or adding one or more components.In some cases, the molecular weight of preferred described selected rinse fluid is less than the molecular weight of working fluid.

In above-mentioned accompanying drawing, heating washer, one or more part of washing machine, fluid, fabric, air or their combination at any time.

In addition, the device that is designed for selected rinse fluid should have and is designed for the condenser system of handling multiple fluid.Condenser system can be according to boiling point and vapour pressure Selective Separation fluid preferably.The example of this condenser system can be referring to U.S.20040117919.An example handling selected rinse fluid comprises the selected rinse fluid of condensation, the water, last condensation working fluid, for example decamethylcyclopentaandoxane or the dipropylene glycol n-butyl ether that add in the condenser system subsequently.

The system that Fig. 6-10 provides only has a rinsing (selected rinse fluid rinsing) step.In some instances, can randomly carry out a step or multistep rinse step to remove crude removal and detergent additive adding under the situation of working fluid said system.Randomly can heat and add air individually or simultaneously to improve extraction efficiency.In addition, can use a step or multistep to use the rinse step of selected rinse fluid.Can adopt the rinse step of selected for the second time rinse fluid fabric intensifier to be distributed/be delivered to fabric.

Figure 12 provides roughly relevant with recovery other example of the present invention.Although not expression can repeat any loop or path among the figure.In addition, it will be appreciated that any step all can merge with other step or entirely omit.To wash the mixture of mother liquor, selected rinse fluid and dirt in step 270 and introduce recovery system.An initial step of recovery method is to remove bulky grain 272 in the example that Figure 12 shows.As previously described, can take any oarse-grained method of removing, comprise and use lint filter, filtration and other isolation technics.Bulky grain can be button, velveteen, clip etc., and for example particle diameter surpasses 50 microns particle.Granule can be less than 50 microns.A kind of method of removing degranulation is included in the dehydration that adds heating fabric in the washing chamber, to remove residual moisture.By implementing this step, the electrostatic bond between dirt and the fabric is interrupted, thereby discharges dirt.Recyclable subsequently this dirt.Other method of removing degranulation includes, but not limited to cyclonic separation, flotation, curing, centrifugal, static (electrophoresis), ultrasonic wave, bubble, high speed liquid chromatography and chemical lixiviate.

In the rinse fluid that step 274 is separated and recovery is selected.The method of separating selected rinse fluid from the washing mother liquor comprises, but be not limited to, fractionation, cooling, adding flocculant, adsorption/absorption, the another kind of additive of use carry out the combination of liquid extraction, filtration, Gravity Separation, infiltration, evaporation, chemical absorbing or above-mentioned steps.Final recovery also stores so that the selected rinse fluid that re-uses contains the working fluid that is less than 50 weight %, better less than 25%, better less than 10%.Before the concentration of working fluid surpassed 25 weight %, the selected rinse fluid and the mixture of working fluid need not to separate.

The dirt of dissolving comprises that those may be dissolved in the dirt in the working fluid, for example oil, surfactant, washing agent etc.Can adopt the method for machinery, the method for chemistry or the combination of two kinds of methods to remove the dirt of dissolving in step 276.Mechanical removal methods comprises uses filter or filter membrane, and for example nanofiltration, ultrafiltration and micron filter and/or the cross-flow filter membrane.Also can use pervaporation.Pervaporation is a kind of like this method, and the liquid stream that it will contain two or more components places a side of non-porous polymer filter membrane and contact with it, and vacuumizes or use gas purging at opposite side.Component in the liquid stream is inhaled in the filter membrane, and infiltration is by filter membrane and be evaporated to (so becoming pervaporation) in the gas phase.The described steam of condensation subsequently (being called penetrating fluid).Because materials different in the incoming mixture have different affinity and the different diffusion velocities that sees through filter membrane to filter membrane, therefore a kind of the component of low concentration can be highly enriched in penetrating fluid in charging.In addition, the composition of penetrating fluid can be very different by the steam that free steam-the fluid balance method obtains.According to compound, filter membrane and treatment conditions, enrichment factor can be by one digit number to surpassing 1000.Chemical Decomposition can comprise the method that changes form, for example lowers the temperature (for example freezing distillation), heats up, boosts, flocculates, changes pH and ion exchange resin.

Other removal method comprises voltolisation knot, absorption, absorption, the endothermic reaction, formation temperature layer (temperaturestratification), adds the 3rd component, dielectrophoresis, high speed liquid chromatography, ultrasonic and hot-cooling technology.

Insoluble dirt 278 can comprise water, enzyme, hydrophily dirt, salt etc.Dirt can be originally insoluble but become solvable (perhaps opposite) in washing and removal process.For example, add the characteristic that lytic agent, emulsifying agent, soap, pH transfer agent, flocculant etc. can change dirt.Other method of removing insoluble dirt comprises filtration, knot filter cake/drying, gravity, cyclonic separation, distillation, freezing distillation etc.

Thereby the step that concentrates impurity 280 can comprise with above be used to reduce the identical step of step of purifying recovery operation fluid.Concentrated impurity can comprise that multiple isolation technics of use or separate addn are to help recovery.It also can comprise use out of use special isolation technics before removing other component.

In some cases, need to reclaim surfactant.A kind of possible method that reclaims surfactant adopts above-mentioned any isolation technics and uses CO ₂And pressure.

In this article, the rule of disinfection step 282 comprise manage to make the washing unit keep clean, sanitary, sterilize and/or kill infection, that cause a disease, pyrogenicity etc. material.Because from the fabric that will clean or introduce potentially harmful substance from other novel substance that is not intended to add and to be trapped in the washing unit.Again obtain clean clothing owing to require wash cycle to finish the back from the washing unit, the amount that remains in the pollutant in the clothing should be minimum.Therefore, because the intrinsic characteristic of cleaning agent of washing unit, treatment step or adding needs disinfection.General disinfection technology is included in and adds glutaraldehyde tanning agent (tanning), formaldehyde tanning agent, expoxy propane or ethylene oxide treatment, gaseous plasma sterilization, gamma-radiation irradiation, electron beam irradiation, ultraviolet light irradiation, peracetic acid sterilization, heat (heating or cooling), chemicals (antibiotic, microcide, CATION etc.) and mechanical means (acoustic energy, structural deterioration, filtration etc.) under the acid pH.

Disinfection also can adopt the material with sterilizing effect to make conduit, container slot, pump etc.For example, various chemicals, for example antibiotic, microcide, biocide, enzyme, cleaning agent, oxidant etc. can be built and apply to these parts.Paint-on technique can easily be known by conduit medical device paint-on technique.Therefore, when fluid was flowed through these parts, this fluid contacted with coating with the inner surface of parts, thereby reached the disinfection based on contact.For container slot, the inner surface of container slot can have the coating of same type, owing to store for a long time, thereby this coating can contact with described fluid for a long time.Various coatings also allow disinfectant is eluted in the fluid stream.Can adopt medicament elution expansion technique wash-out disinfectant, for example carry out wash-out by the parylene coating.

Figure 13 has provided a method that reclaims selected rinse fluid preferably.Lint filter 38 will be removed bulky grain and velveteen before importing the distillation unit.Fractionation unit 292 is told selected rinse fluid from residual washing mother liquor.Collect and store this selected rinse fluid so that reuse 294.As previously described, the remnants that obtained by described distillation unit are washed mother liquor and dirt carries out above-mentioned cooling step 110.Partly soluble dirt will separate out and make whole mixture by cross-flow filter 114 from solution.Cross-flow filter is enriched in the dirt of remnants in a spot of working fluid and makes this materials flow by concentrate filter 144 and can dispose the dirt of collecting 302.Penetrating fluid materials flow from the crossflow membrane filtration operation is carried out sterilizing by charcoal adsorbent bed 304 and in 306 usefulness sterilizing technology, and stores so that reuse 138.

As previously described, the U.S. Patent application that is entitled as " non-water device " 10/699, the 262 disclosed improved washing machine that adopts on October 31st, 2003 to submit to is tested washing shown in the drawings and reclaimer operation effect.The service ability and the details of this purposes of experiment demonstration have been carried out.

Embodiment 1

In an experiment, use decamethylcyclopentaandoxane as washing mother liquor and using the commercially available washing agent packing and the cotton goods of 3 kilograms of loads.The cotton goods of described load were washed 10 minutes in the washing mother liquor of decamethylcyclopentaandoxane/washing agent, took off row 7 minutes at 1150rpm subsequently.Average retention rate (the kilogram amount of residual solvent in the per kilogram clothing) is 25%.In system, add ethyoxyl nine fluorine butane (HFE-7200) and recirculation 4 minutes.Took off row again 7 minutes at 1150rpm, with 60 ℃, 150 feet ³/ minute Cryogenic air fluidized drying fabric.Write down the retention rate and the drying time of each sample.The results are shown in table 1:

Table 1

Load capacity (kg)	The HFE of per kilogram clothing rises number (LCR)	Retention rate (%)	Drying time (branch)
Load capacity (kg)	The HFE of per kilogram clothing rises number (LCR)	Retention rate (%)	Drying time (branch)	3.0	1.0	14.3	20
3.0	2.0	11.7	20	3.0	1.0	14.3	20
3.0	2.0	11.7	20	3.0	3.0	8.9	10

By table 1 as seen, adding more HFE-7200 can improve and take off row's effect and reduce required drying time.

Embodiment 2

Carry out another test, use decamethylcyclopentaandoxane/water/detergent mixture to wash 10 minutes, took off row 7 minutes at 1150rpm.Recording retention rate is 30.0%.With HFE-7200 rinsing 4 minutes, take off row at 1150rpm subsequently, then carry out above-mentioned heat drying step.Record retention rate and drying time, the results are shown in following table:

Table 2

Load capacity (kg)	The HFE of per kilogram clothing rises number (LCR)	Retention rate (%)	Drying time (branch)
Load capacity (kg)	The HFE of per kilogram clothing rises number (LCR)	Retention rate (%)	Drying time (branch)	3.0	2.0	17.8	25
5.0	2.0	15.2	30	3.0	2.0	17.8	25
5.0	2.0	15.2	30	6.0	2.0	16.3	35

The information of interest that this table obtains shows, adopts the HFE-7200 of constant volume, and load capacity is not very big to the influence of drying time.In the tradition washing of same washing machine, the 3kg load need nearly 60 minutes, the 5kg load needed 120 minutes and 6kg load level needs 180 minutes.

Embodiment 3

Use injection rinsing technology to carry out another test.Load fabric substrate was washed 10 minutes in decamethylcyclopentaandoxane/water/detergent mixture, took off row 7 minutes at 1150rpm subsequently.When clothing is with the 300rpm rotation HFE-7200 is added laundry wheel, HFE-7200 recirculation was taken off row 7 minutes by the load fabric at 1150rpm, then carried out the low temperature drying step as mentioned above.Record retention rate and drying time, the results are shown in following table:

Table 3

Load capacity (kg)	The HFE of per kilogram clothing rises number (LCR)	Retention rate (%)	Drying time (branch)
Load capacity (kg)	The HFE of per kilogram clothing rises number (LCR)	Retention rate (%)	Drying time (branch)	5.0	1.0	13.5	30
5.0	1.0	11.2	30	5.0	1.0	13.5	30

In this concrete test, further reduce the amount of required HFE.This rinse method provides the most cost-efficient method to the user.

Also adopt different working fluids and selected rinse fluid to carry out other experiment, these verification experimental verifications above-mentioned data.

As mentioned above, the baking temperature of aforesaid operations is about 60 ℃.In general, temperature surpasses 60 ℃ of tendencies with damage fabric, and most of intake air temperature of conventional dryer are above 175 ℃.In traditional nonaqueous system, the flash-point of the working fluid of selecting for use is usually less than 100 ℃.Except high-flash, these working fluids have low-vapor pressure, and they need high temperature to remove from fabric.NFPA stipulates that these working fluids can be heated to the temperature than low 17 ℃ of the flash-point of solvent.

Although all above-mentioned data are to obtain being no more than under 60 ℃ the temperature, other test shows, according to energy requirement and time restriction, can further reduce temperature.Described selected rinse fluid can be removed the working fluid of most of low-vapor pressure, uses the selected rinse fluid of higher vapour pressure can further reduce baking temperature and/or shorten drying time.

Other requirement to PRF is that this fluid is non-flammable.Non-flammable fluid can improve the flash-point of solvent in conjunction with flammable fluid, thereby improves the security relevant with system.Selected rinse fluid (PRF) can faster volatilization, produces the upper space of rich PRF above working fluid, and this has greatly reduced because the risk of catching fire and exploding of using washing medium to cause.Although most of existing standards are only worked out for industry washer, this apparatus and method can be used for family, can easier adaptation with described selected rinse fluid method.Described selected rinse fluid method can reduce with adopting combustible solvent cleans relevant risk.

In example preferably, select working fluid to make it to be non-aqueous, can remove crude removal and clean fabric.This working fluid that satisfies this standard is siloxanes and glycol ether, the decamethylcyclopentaandoxane of more specifically saying so, dipropylene glycol n-butyl ether, dipropylene glycol uncle's butyl ether and/or tripropylene glycol methyl ether.After can disperseing (dispense) to be used for cleaning at fabric, this fluid is added the washing chamber.The time of system's operation is enough to clean this fabric, and working fluid and fabric roll with such speed simultaneously, promptly are enough to make fabric to roll to top mutually.Remove working fluid by rotation from fabric, according to the size of the laundry wheel that uses, described rotary speed can be 600-1700rpm.The time of swing circle (above 2 minutes) be enough to make seldom or more not have working fluid can remove from fabric.When fabric is with about 300rpm speed rotation, in this system, add selected rinse fluid.Select described selected rinse fluid, make it affinity and penetrability that affinity and penetrability with fabric are lower than working fluid and fabric.More particularly, described selected rinse fluid is a hydrogen fluorine ether, ethyoxyl nine fluorine butane or MSX 4518s.In the fabric rotation, add described selected rinse fluid, thereby centrifugal force can draw described selected rinse fluid by fabric, to remove most working fluid.The duration of this effect is enough to the concentration of working fluid is brought down below 15% of fabric weight.Conventional swing circle with 600-1800rpm is removed selected rinse fluid and working fluid.Then hot-air (better being lower than 80 ℃) is imported laundry wheel so that remove residual PRF and working fluid from fabric.Air is that the speed that the fabric of introducing when fabric rolls in laundry wheel rolls is enough to make air the solvent vapour on the fabric face can be brought in the air-flow.Then make this air communication cross cooling medium so that from air-flow, remove most of solvent vapour, thereby make this air-flow can pass through fabric once more.Behind the fabric drying, it can be taken out from sink.

Make described selected rinse fluid and working fluid feed recovery system subsequently to separate as far as possible and the described fluid of purifying.In example preferably, from system, remove bulky grain (for example velveteen).Then this recovery system is fed the distillation unit.Should notice that the working fluid of collecting after the initial wash can carry out purifying before adding PRF.These technology of great majority have been disclosed in US 20040117919 and can have extended to the system that contains glycol ether.The distillation unit can be heated to the boiling point of PRF or than the temperature (getting temperature lower among both) of low 30 of the flash-point of working fluid.The steam that condensation produces also stores PRF in order to reusing.Residual working fluid is carried out cooling step to remove the dirt of dissolving.With solution by the cross-flow filtration film with in the working fluid that residual dirt is concentrated in small size more.The solution that should concentrate passes through a filter again, thereby working fluid evaporation, the condensation of remnants also can be reused.Make unconcentrated materials flow by a series of absorption/adsorption filters to remove residual dirt, then operate by disinfection.Collect the dirt of from system, removing and lose at each all after date, abandon or, and then abandon a series of cycle trapped dirts.

The device preferably that is used for operation like this should comprise many parts and in fact can make standard package if necessary.Described device should have the accumulator tank of working fluid and the rinse fluid of selecting.Described device should contain be useful on laundry wheel or the sink of placing clothing, the device (as motor) of controlling this laundry wheel, with working fluid, PRF, detergent additive etc. be dispensed to distributor in the washing chamber, be used for air is flowed so as dry air blast, be used to heat this air, fluid, fabric or laundry wheel heater, remove the condensing unit of solvent vapour, apply device, sensing device and the retracting device of mechanical energy to laundry wheel from air flow.

Described device is constructed by this way preferably in the example at one, and promptly its size need not to revise and just this device can be put into house.In addition, this washing machine can construct and arrange by this way, promptly can be with form (water-based circulation and the dry-cleaning circulation) operation of two-fluid machine.

The rinse fluid that the present invention selectes (PRF) method has reached in series of steps the purpose of mask work fluid from fiber.

The most suitable working fluid of cleaning all fabrics still has some shortcomings.These working fluids of great majority have quite little vapour pressure and generally have flash-point.This causes very difficulty of conventional drying means.Can in of a plurality of rinse step, add with the miscible selected rinse fluid of these working fluids and can remove a large amount of residual working fluids.Can more easily remove these selected rinse fluid with conventional convective drying method then.

The present invention is not limited thereto, and the present invention also provides the method for effective recovery PRF.In example preferably, comprehensive selection working fluid and PRF, make it can be miscible and they be visibly different, thereby use shirtsleeve operation just both can be separated, this helps to form whole circulation, and this circulation can be implemented in automatic, self-contained non-water washing machine as herein described.

Claims

1. method with work fluid wash fabric, described working fluid has affinity to the fiber of fabric, and described method comprises the steps:

(a) remove most of working fluid from fabric;

(c) the selected rinse fluid and the working fluid of evaporation of residual from the fabric, and described fabric is retained under the condition of substantially dry.

2. the method for claim 1, it is characterized in that described working fluid is selected from, but be not limited to the ester of glycol ether, polyalcohol, ether, glycol ether, fatty acid ester and other long-chain carboxylic acid's ester, fatty alcohol and other long-chain alcohol, short chain alcohol, polar non-solute, siloxanes, hydrogen fluorine ether, dibasic ester, aliphatic hydrocarbon and/or their mixture.

3. method as claimed in claim 2, it is characterized in that described working fluid is selected from, but be not limited to decamethylcyclopentaandoxane, ten dimethyl, five siloxanes, octamethylcy-clotetrasiloxane, decamethyl tetrasiloxane, dipropylene glycol n-butyl ether (DPnB), dipropylene glycol positive propyl ether (DPnP), dipropylene glycol uncle's butyl ether (DPtB), propylene glycol n-butyl ether (PnB), propylene glycol positive propyl ether (PnP), tripropylene glycol monomethyl ether (TPM) and/or their mixture.

4. as each described method among the claim 1-3, it is characterized in that described working fluid is a water.

5. the method for claim 1 is characterized in that adding at least a detergent additive in described working fluid.

6. the method for claim 1 is characterized in that selecting described selected rinse fluid to make it to have one that satisfies in the following Hanson solubility parameter:

(a) polarity greater than 3 and hydrogen bonding less than 9;

(c) hydrogen bonding is about 13-19, and dispersiveness is about 14-22.

7. method as claimed in claim 6 is characterized in that described selected rinse fluid is selected from, but is not limited to, perfluoroparaffin, Decafluoropentane, hydrogen fluorine ether, MSX 4518, ethyoxyl nine fluorine butane and composition thereof.

8. the method for claim 1 is characterized in that the step of removing working fluid from fabric is included in the centrifugal rotation of 5G at least.

9. the method for claim 1 is characterized in that the per kilogram fabric adds less than 20 liters selected rinse fluid with the extraction working fluid.

10. the method for claim 1 is characterized in that applying mechanical energy, and the time that mechanical energy applies is enough to the concentration of working fluid in the fabric better is brought down below 45% of fabric weight, better is lower than 25%, is preferably lower than 15%.

11. the method for claim 1 is characterized in that the working fluid of evaporation of residual and selected rinse fluid comprise to make dry gas pass through fabric.

12. method as claimed in claim 11 is characterized in that described dry gas is selected from air, nitrogen, carbon dioxide.

13. make the method for fluid wash fabric with non-water conservancy project for one kind, it comprises the steps:

(a) fabric is contacted with the rinse fluid of selecting, this selected rinse fluid is chosen as with described working fluid miscible, and the addition of selected rinse fluid is less than 5 liters described in the per kilogram fabric;

(b) remove a large amount of rinse fluid and residual working fluid from fabric.

14. method as claimed in claim 13 is characterized in that selecting described selected rinse fluid, makes it to have in the following performance at least one:

(a) surface tension is less than the surface tension of working fluid;

(b) viscosity is less than the viscosity of working fluid;

(c) vapour pressure surpasses 5mmHg under standard conditions, perhaps

(d) it is non-flammable.

15. method as claimed in claim 14, it is characterized in that further selecting described selected rinse fluid to make it can to make fluid miscible with non-water conservancy project, and its Hanson solubility parameter (with joule/cubic centimetre expression) satisfies in the following standard:

(a) polarity greater than 3 and hydrogen bonding less than 9;

(c) hydrogen bonding is 13 to about 19, and dispersiveness is 14-22.

16. method as claimed in claim 15 is characterized in that described selected rinse fluid is selected from, but is not limited to, perfluoroparaffin, Decafluoropentane, hydrogen fluorine ether, MSX 4518, ethyoxyl nine fluorine butane and composition thereof.

17. method as claimed in claim 13 is characterized in that making fabric to contact with selected rinse fluid comprising described selected rinse fluid is sprayed on the fabric.

18. method as claimed in claim 13 is characterized in that making fabric to contact with selected rinse fluid comprising applying mechanical energy so that fabric and described rinse fluid relative motion.

19. method as claimed in claim 18 is characterized in that described mechanical energy applies by rotation porous laundry wheel.

20. method as claimed in claim 19 is characterized in that applying the working fluid of mechanical energy in remaining in fabric less than 45% of fabric weight, better less than 25%, preferably less than 15%.

21. method as claimed in claim 13 is characterized in that the step of removing selected rinse fluid from fabric comprises at least a following method: centrifugal, liquid takes off row, vacuumizes, applies forced hot air, applies compressed air, utilizes gravity to make the washing mother liquor drain, apply steam/washing mother liquor absorbing material, capillary or their combination from fabric simply.