DE1460204A1 - Process and system for the chemical cleaning of textile pieces and the like - Google Patents

Description

Patent registration of the gentlemen

Andre Lueien Maurice Brillet,
Enclos de Pen-Ar-Steir,
Qjiimper (Pinist ^ re)

and

Andre Edouard Chauveau,
6, rue Victor Beausse *
Mcaatreuil (Seine)

- France -

Process and apparatus for cleaning ebemlscnen van Texfcilstüeken, etc. ·

In the chemical cleaning of textiles and the like. two different methods are generally used In the first type of cleaning, the so-called NaS cleaning, the pieces to be cleaned are treated in a proper cleansing bath, while in the second Type, the so-called dry cleaning, the cleaning liquor is sprayed through spray nozzles into the material to be treated. the Cleaning liquor can be used here in a cold or heated state, with its application in heated State was suggested primarily to increase the cleaning effect

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Neqe documents (ATt ₇₁₁ Ate. ₂ ν.

The invention is concerned with dry chemical cleaning of textile pieces and the like and has in particular set the task of improving the previously known chemical dry cleaning process in such a way that that a simpler and more effective implementation can be achieved.

To solve this problem, the invention proposes a method for chemical dry cleaning of textile pieces and the like using a solvent, which characterized in that, in a first treatment stage, the material to be treated is pretreated with cold cleaning liquor and then this cold cleaning solution that is then removed in a second Treatment stage the pretreated, relatively dry material to be treated to avoid a liquid bath under Addition of only a small amount of a second Rcinisunga liquor is treated with a temperature close to the boiling point and subsequently in a third treatment stage Thoroughly with plenty of addition of a cold solvent is rinsed, after which it is finally spun and finally dried.

Carrying out the second stage of treatment with a small amount of very hot cleaning flotto, so that no liquid bath is created, has a significant advantage that not only the greasy stains in the treatment are removed very thoroughly, but also the rust-free removal of stains that have become hard, their constituents, is possible .xmd dissolve from the textile fibers to which they were stuck.

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H60204

While for a rapid increase in temperature of the items to be treated between the first and second treatment stage the cold one used in the first stage of treatment Cleaning liquor is largely removed to deal with a only a small amount of hot cleaning lotto this snow- » To achieve len temperature rise, 'is to achieve a rapid temperature drop after the completion of the second A large amount of cold solvent is added to the heat treatment stage, thereby creating a thorough Rinsing of the items to be treated is achieved. Because the slut udder process The now cold item to be handled has broken fibers or kinks There is no need to worry about the fabric, so that the textile piece is clean and wrinkle-free at the end of the cleaning process Troraaiel can be taken. Ira following the last Treatment stage with a cold solvent can be of course, the goods to be handled in a known manner impregnate or finish with appropriate active ingredients, thereby reducing the side effects of the very hot cleaning fluid must be balanced out again on the textile fibers in the second treatment stage can·

To carry out the aforementioned dry cleaning process proposes the invention in a dry cleaning machine to the treatment vessel in which the different treatment levels are carried out, to connect several flow circuits that can be switched on and off for the solvent (s) and, in doing so, in the a flow circuit intended for carrying out the first and the third treatment stage, a pump

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-lihigh delivery rate as well as a cooler and in the other flow circuit provided for carrying out the second treatment stage, a pump iait controllable, to switch on a heating device.

Expediently, a thermometer is built into the heating device to monitor the temperature a thermostat is also provided for the purpose of automatic control of the heating effect. To carry out the impregnation, Finishing or the like in connection with the Cleaning is expediently an additional flow circuit equipped with a control window or sight glass intended. To include heat losses in the flow circuit provided for the hot cleaning liquor of the treatment vessel by radiation to the outside to keep it as low as possible and thus the profitability factor In order to improve the machine, both the lines of this flow crown are expediently preserved like the treatment vessel a thermal protection. It is also preferred to accurately monitor the temperature in the Treatment vessel a thermometer reaching into this intended.

Using the enclosed, an embodiment of a for Implementation of the method according to the invention is suitable Machine schematically depicting drawing, the invention will be explained in more detail below.

The machine has a handle in a manner known per se ventilation vessel 1 with a tightly fitting sin-filling and discharge ■ take-up flap in which the cleaning drum rait dea

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Treatments during the cleaning process can be swiveled or rotated relatively slowly as well as zxm. Spinning the item to be treated is rotatably mounted at high speed

On this vessel 1 are several containers 2 * 3,4,5 for the chemical cleaning liquor via suction pipe © δ and reflux pipes 7 by means of taps 8 betw · 9 closed resp. can be switched off connected · There is also an on and off switchable Filter 10 iiB supply circuit of the container provided «

A first StrSiauagskrels exits from one of the containers 2-5 via a suction pipe 6 * a tap 8, a suction line X6, 15 to a pump 13 with a high delivery rate, from there via a cooler 14, then through the filter 10 or directly bypassing the same into the OefäS 1 * from its collecting tank 32 from the liquid after the end of the treatment either via a distribution line 31, one of the faucets 9 and one of the return pipe 7 in one of the containers 2-5 ssurüekf or via a faucet 3 ^ can be drained into a line 33.

A second flow circuit for carrying out the second treatment stage runs from one of the containers 2-5 via a suction pipe 6, a tap 8, the suction line 1β * a tap 22 and a suction line 19 .to a pump 17 with a low delivery rate, via its pressure line 20 and a faucet 28 through a heater 18 with a Thermcraeteir 59 or a thermostat and a line 21

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to a »distributor 43 · From there (via the pressure line 44 into the vessel 1 and over its Sarnrae! container 32 as in First flow circuit 2 back into one of the containers 2-5. On the other hand, the pump 17 can, however, also the liquid directly from this collecting container 32 via the distribution line 51 with closed taps 9 ** nd open boat 40 suction through a needle valve 25.

Finally, a third flow circuit is provided for the impregnation or apprentiation of the material to be treated, which can be carried out after completion of the cleaning process, which is known per se, which consists of storage containers 48, 49 for this liquid via corresponding taps 50, 51, the distributor tap 43 and the supply line 44 into the vessel 1 and from its collecting container 32 via the distributor line Jl with the barges 9 closed and the cock 40 open via the needle valve 25 aur Piuspo 17, which leads the liquid into the line 55 and the reservoir with the cock 28 and the cock 57 open pumped back. Expediently, a control window or inspection glass 5 is provided in the line 55.

For carrying out the first stage of treatment with a at least cooled to room temperature solvent is via the pump 12 from one of the storage containers 2-5 when opening the corresponding tap 8, the solvent opened by the cooler 14 which has been put into operation Boats 37 * 42 and closed. Taps 35> 39 about the

appropriately connected manifold 43 and line 44 into the Bshandlungsgefäß 1 · Depending on the pollution of the Lösunss-Bittel it is passed through the filter 10, which zn

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Purpose of the straw 57 is closed and the tap 55 is opened. After completing the first treatment stage, the . Solvent collected in the collector 52 and via the Distribution line 51 one of the storage tanks again fed »Towards the end of the first treatment stage, the drum in treatment vessel 1 is set in rotation, in order to largely remove the solvent from the material to be treated *

Should it turn out * that the solvent is very is heavily soiled, the cold solvent can also be filtered while the treatment vessel is involved 1 possible, for what purpose the taps 57 and 42 are closed and the hans 55 and 59 are opened, soda3, of course with the taps 42a and 40 closed, the liquid Only pumped through the filter IO via the pump 15 and flows back from this into the storage container.

Such purification of the solvent does not work carry out more during the actual cleaning or between two treatment stages

In the second treatment stage, which is a heat treatment of the material to be treated with only a small amount of liquid, the pump 15 is switched off and the pump 17 is switched on. Kach manually or automatically via the thermostat controllable heating of the solvent conveyed by this pump 17 through the heater 18 it passes over the distributor 45 into the treatment vessel 1, with possibly excess hot solvent immediately via the collection container 52, the manifold 51 and the reflux lines

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flows back into one of the containers 2-5. on the other hand can the Puape, which only works with low pumping capacity -17 too. after. Shutdown of the inflow from one of the Tank 2 - 5 work in a closed flow circuit * wherein it sucks the liquid from the vessel 1 via the needle valve 25.

This heat treatment is for white »colored textiles, Yes, even innocuous for leather, if the one used here hot amount of solvent only drank the material to be treated in a very small amount, so that a faster one Temperature rise but no actual Viasch process in a hot wash bath is carried out · In addition, see the Treatment vessel, the lines, the solvent and naturally there is no amount of water in the material to be treated, however small, since this is heated water, for example in the case of woolen items this would immediately become matted or in the case of Leather goods would shrink them.

Since the second stage of treatment only with a very low level Solvent is carried out in a small amount can after the expiry of the corresponding time directly through the pump 1] 5 with strong Delivery rate cold solvent can be added in order to achieve rapid cooling of the material to be treated. After thorough rinsing and removal of the last dirt particles, which have become detached from the textile fibers as a result of the rapid cooling can damage the material to be treated without danger be spun dry, which is the case with warm items to be treated because of the risk of breakage of the Texfcil fibera do not warn it is possible.

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ΒΑΘ OBiGINAL

Bel the cleaning -of garments Bittßls des untej » the solution known to the Kamen Ferehlorethylene Expediently, a punctual treatment for a few minutes is provided * noEKBen> Daily these! " Treatment leaves the solution * medium durejb, the filter IQ flows and directs it from Return vessel 1 to one of the food containers * J) ie ^ lei ^ dun ^ sstiio ^ e gebeji her staut) lind the largest rope of her » Dirt off. The bath of the reservoir can pollute faster than it is filtered, however can the LU * solvent continuously bypassing the treatment ^ 1 filter, with a slight spinning during this time <l @ s treatment item3 in the vessel3 1 iaen will be

Then the weak pump 1? put into operation and Jö adjusted as desired so that they either Solvent or clean solvent flowing out of the filter Entitamt solvent from one of the storage containers 2-5. In the rice device 18, the heating power of which by the fhermoiseter 59 monitored or automatically via a Therrat « staten is controlled, the solvent is adjusted to the desired Bred temperature and sprayed into the item to be treated in. The GefSB 1. The treatment time depends on this The course of the temperature rise determined by the thenaometer 58 in the treatment vessel 1 from · It is normally about 3 to 4 minutes *

Information on the very small amounts used during this process, Congo the handling of hot solvents lungssut not to be thrown dry * By turning

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switch off the supply of hot solvent and supply cold solvent at least long enough that the temperature of the cleaned product drops to at least 25 ° C, and there is no need to wait until the entire solution has been filtered to remove the Complete the process in the vessel * ,,

Expediently, the temperature in the Göf äß 1 controlled by means of a thermometer 58 before it is opened «, the dissipated by the solvent Heat is dissipated in the cooler 14, which is switched on for this purpose.

Following the cleaning, the clean © items to be treated can also be impregnated or finished in a manner known per se. For this purpose, the storage container can nsgi the liquid 48 and 49 in the vessel 1 dos by opening of the boat 46 and corresponding adjustment manifold 43 flow "The Tränkungsflüssigkeifc is fed through the Vorteilerrohr 31 via dc-n open valve 40, the needle filters 25, AEET pump 17 , which © it reclaims over the line 55 past the sight glass 56 with the cock 28 closed and the boat 57 open.

When cleaning heavily soiled items of clothing, e.g. work suits for mechanics, an extremely small amount of solvent can be used, which is taken from the containers 2-5 and fed through the flow circuit containing the pump 17 and the heating device IS, so that this ZiUsunssiaittel with a very high temperature - practically with the boiling temperature - is atomized on the work suits.

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BAB OKGIMAL

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After treatment with this small amount of solution the heavily contaminated liquid can flow through the drainage line 3> to a special container (not shown) or directly to the regeneration vessel, not shown, which is usually combined with such a machine äö be discharged

The efficiency of the machine is excellent in terms of speed and perfection of cleaning. The thermal efficiency can be further improved «that the wall © of the vessel 1 and the parts of the Circuit for the hot solvent 'rait one Thermal protection are provided. Furthermore, the solvents used in the various treatment stages be the same or different

Address t

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Claims (1)

Patent claim © / IJ Process for dry chemical cleaning of. Textile· pieces and the like using a solvent, characterized «that in a first treatment stage the material to be handled in cold cleaning liquor pretreated floating and then this cold Cleaning liquor is sufficiently removed that then in a second treatment stage the pre-treated α, relatively dry items to be treated; to avoid a liquid bath with the addition of only a small amount a second cleaning liquor with near boiling point is treated at a lying temperature and then in a third treatment stage is thoroughly rinsed with copious addition of a cold solvent, where » then it was finally thrown and finally is drying, 2 · Troekenreinigungsraaschine for performing the method according to claim i _# characterized in that in which proceed at their treatment vessel (I) * the different treatment stages, a plurality of to-lind disconnectable Ströraungskreise for the solvent or solvents are connected, da3 in EQS one for the implementation of a pump (1>) with a high delivery rate and a cooler (14), and in the other flow circuit provided for carrying out the second treatment stage, a pump (17) with a controllable * low delivery rate and a heating device (IS). are switched on » Documents (Art 7, Paragraph I, Paragraph 2, No. I SaU 3 de ₈ amendment, of 4 September 1967 909806/0829 4% 3 "machine according to Arvspruch 2, thereby that the heating device (18) has a thermometer is preferably also equipped with a "stoormostat controlling the heating effect. km Kaachißö according to claim 2 »characterized in that» ie has an «external with oinoa cantroll window varseheac-n Ströaamsskröis for initialization or / vpp marking in the" I known W "? iso of the cleaned B. 5. Machine according to claim 2 # characterized in that ύ & ν StrSisußgoicreis rür aas feolde tösur.ssraittol WUraeverluste is protected « also claim 2, characterized in that that the bedding vessel (I) c »it« is stranded in thermal protection · 7. M & schinö naoh claim 2, characterized in that the Boisanälimßssofiia (ι) beaitat a Thortaoraetor to set sGinsr internal temperature. Patent attorney Pr. W, 6A »OfIiGINAU