CN1154150A - Method of preparing treating liquid in circulating system of cloth treating machine and treating cloth with the liquid and cloth treating machine having the function - Google Patents
Method of preparing treating liquid in circulating system of cloth treating machine and treating cloth with the liquid and cloth treating machine having the function Download PDFInfo
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- CN1154150A CN1154150A CN96190329.5A CN96190329A CN1154150A CN 1154150 A CN1154150 A CN 1154150A CN 96190329 A CN96190329 A CN 96190329A CN 1154150 A CN1154150 A CN 1154150A
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- treatment fluid
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- circulatory system
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- 239000004744 fabric Substances 0.000 title claims abstract description 181
- 239000007788 liquid Substances 0.000 title claims abstract description 129
- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000012530 fluid Substances 0.000 claims abstract description 121
- 239000000843 powder Substances 0.000 claims abstract description 85
- 239000002904 solvent Substances 0.000 claims abstract description 20
- 238000003756 stirring Methods 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims description 58
- 238000002360 preparation method Methods 0.000 claims description 24
- 230000008676 import Effects 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 239000000975 dye Substances 0.000 abstract description 31
- 238000004043 dyeing Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 7
- 239000000049 pigment Substances 0.000 abstract description 4
- 239000004094 surface-active agent Substances 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 2
- 238000004061 bleaching Methods 0.000 abstract 1
- 238000009991 scouring Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 36
- 238000010186 staining Methods 0.000 description 26
- 239000000243 solution Substances 0.000 description 15
- 238000003860 storage Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 230000021615 conjugation Effects 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 238000003908 quality control method Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 230000001351 cycling effect Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000002421 finishing Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 238000009981 jet dyeing Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000000985 reactive dye Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229920006186 water-soluble synthetic resin Polymers 0.000 description 1
- 239000012866 water-soluble synthetic resin Substances 0.000 description 1
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Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/20—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation
- D06B23/205—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation for adding or mixing constituents of the treating material
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The present invention relates to the improvement of a cloth processing liquid supply system in respect of a cloth processing apparatus for dyeing, bleaching or scouring cloth by means of liquid circulation system, more in details, it especially relates to both a method whereby certain cloth processing powders such as dyes, pigments and surfactants are supplied into either a powder input and stir portion provided in the circulation system of said apparatus where there occurs larger fluid friction of a solvent or a region of said circulation system where there locally occurs larger fluid friction so as to not only prepare said processing liquid of a predetermined concentration by making effective use of said larger fluid friction, but also successively process said cloth with said liquid flowing in the circulation system of said apparatus and an apparatus used in the same method.
Description
The present invention relates to the improvement of the cloth treatment fluid feed system of cloth treating apparatus, this device uses the cloth treatment fluid circulatory system to cloth dyeing, rinsing and washing.More specifically say and relate to by effectively utilizing in the cloth treatment fluid circulatory system of device the local big fluid friction that takes place as mixing power, handle powder and the certain density cloth treatment fluid that has for preparing infeeds described device and is used in the method that the described cloth treatment fluid that flows in the described circulatory system is handled cloth continuously with the cloth of solvent dispersion and dissolving dye, pigment, surfactant and so on, and the device of usefulness in the method.
In common cloth treating apparatus, inevitably to there be the preparatory stage, make in the dissolving bucket that a contiguous cloth treating apparatus branch is arranged and to disperse and the cloth processing powder of dissolving as dyestuff, pigment, surfactant, finishing agent and so on and prepare the cloth treatment fluid, or these powders of dispersing and dissolving are made the cloth treatment fluid and installed in the feeder in special agitator with solvent.
Therefore, reach the working environment speech of remaining valid with regard to quality control in factory, this common treating apparatus has many problems.For example in factory, must add the additional space for preparing and transport described cloth treatment fluid, and prepare and transporting described liquid and clear up the cost increase that dissolving bucket, liquid control device and container bring.Also have the liquid loss that causes by transportation, in the preparation liquid inevitably spread out cause color stain or the liquid loss, since mixes with the residue of the cloth treatment fluid for preparing previously cause liquid impure, cause concentration inconsistent and make described treatment fluid mass change (under REACTIVE DYES and acidic groups pigment situation, have hydrolysis etc. can see obvious variation) cause quality problems than time interval of length owing to depend on the workman who is responsible for the preparation treatment fluid owing to be prepared into actual use.
The objective of the invention is in the prior art the cloth treatment fluid being infeeded the problem of running in the cloth treating apparatus, providing a kind of does not need the device of special preparation treatment fluid and can prepare treatment fluid effectively and handle the method for cloth on request continuously with it in the circulatory system of described cloth treating apparatus, and a kind of economy and save the device in this method of being used in space.
In addition, another object of the present invention provides can be to the processing method of treatment fluid quality control, compared with prior art, not only the cloth treatment fluid of available ideal concentration is handled does not have owing to mix cause impure with the residue of the treatment fluid for preparing previously, and limited the liquid loss in the transportation greatly, the device of usefulness in the method also is provided.
In addition, the purpose of this invention is to provide can be to the processing method of treatment fluid quality control, make treatment fluid have only short interval and make the unconverted cloth of the treatment fluid of stabilised quality, handling of treatment fluid quality from being prepared into to use, and the device of usefulness in the method.
For addressing the above problem, the invention provides a kind of method of handling cloth, its characteristics are to infeed and be located at solvent in the described circulatory system and have in the powder input of big fluid friction and the agitator or infeed solvent in the described circulatory system and have in the zone of big fluid friction and prepare the cloth treatment fluid with predetermined concentration by predetermined cloth being handled powder, stir described powder by effectively utilizing described fluid friction subsequently, and be used in the described circulatory system the described liquid that flows and handle cloth continuously.
The apparatus features of the present invention that in addressing the above problem, adopts be by disperse effectively and dissolve infeed that big fluid friction takes place solvent in the circulatory system that is located at device powder is imported and agitator in powder or infeed that solvent has the powder in the powder input port of establishing in the zone of big fluid friction to make the cloth treatment fluid with requirement concentration in the circulatory system that is located at described device.
In order further to estimate the present invention's (its theme is that cloth treatment method reaches the device of usefulness in the method), be provided with the circulatory system that flows through the cloth treatment fluid and (comprise main circulation pump, fluid flow tube and dyestuff groove etc.) above-mentioned cloth treating apparatus suggestion be meant by cloth is immersed in the circulatory system processing of carrying out requirement in the described treatment fluid that flows (as from physics and chemical aspect improve the outward appearance of cloth and the dyeing that quality is carried out, finishing, rinsing and alkaline reduction etc.), its classification belongs to as the jet dyeing machine, through the axle dyeing machine, the common known devices of vibration dyeing machine and flannelette dyeing machine and so on.All these printing and dyeing material machines can remove other the cloth treatment fluid (as finishing stream, rinsing liquid and alkali reducing solution etc.) of external application that dyes carries out requirement to cloth processing.
Though, two kinds of methods that prepare the cloth treatment fluid of requirement are arranged in the present invention, just, powder is infeeded solvent in the described device big fluid friction takes place, be contained in the structural detail in the circulatory system or infeed in the circulatory system of device in the inevitable zone that big fluid friction takes place, identical is, and they are all used the fluid friction of solvent to disperse effectively as frictional force and fuse powder.But last method is to be located at specially in the circulatory system of device at the described structural detail that has big fluid friction place to prepare described treatment fluid with the difference of back one method, and being characterized in being chosen in the part that is easy to carry out the treatment fluid preparation in the circulatory system is very flexibly.Last method can realize by a powder input and agitator are set, solvent flows into this bucket hastily so that form fluid friction in the circulatory system of device, then a powder takes place to establish in the zone of big fluid friction in can the circulatory system by device and enters the mouth and realize in a method, big fluid friction can be caused by turbulent flow, swirling flow or fluctuation and vibration etc., and described powder is infeeded the powder inlet.Above-mentioned this turbulent flow, swirling flow or fluctuation and vibration etc. can be in the circulatory system of device these area discovers of fluid velocity flip-flop, as near circulating pump, in the passage of nozzle, the inlet part of the staining trough that flows through hastily in the place ahead of the ejiction opening of nozzle and at treatment fluid.
Described processing powder can directly infeed powder input and agitator or powder inlet, or is contained in water-soluble bag or permeable basket middle ground infeeds.
Describe in detail with reference to the accompanying drawings and implement best mode of the present invention, in the accompanying drawing:
More specifically explain with reference to the accompanying drawings and carry out best mode of the present invention, in the accompanying drawing:
Fig. 1 is the schematic diagram according to the cloth treating apparatus of the structure of first embodiment of the invention;
Fig. 2 is according to the schematic diagram of the cloth treating apparatus of the structure of the second embodiment of the present invention;
Fig. 3 is the schematic diagram according to the cloth treating apparatus of the structure of third embodiment of the invention;
Fig. 4 is the schematic diagram according to the cloth treating apparatus of the structure of fourth embodiment of the invention;
Fig. 5 handles the schematic diagram that powder infeeds the method in the powder inlet hole in the circulatory system that is located at cloth treating apparatus of the present invention to cloth.
First embodiment
Schematic diagram according to the cloth treating apparatus T1 of the structure of first embodiment of the invention has been shown among Fig. 1.
Cloth treating apparatus T1 with this embodiment, circulation cloth W is through immersion liquid, dehydration, rubbing, state such as extract and unclamp is so that be immersed in the cloth treatment fluid in process repeatedly equably, cloth described in the process repeatedly slowly reaches and is immersed among liquid (dye solution just) D that is located in the staining trough 2 of handling bucket 1 bottom when moving through staining trough 2 round, part is immersed in the liquid and partly floats on the described liquid, then, described cloth W is by pull-out roll 3 pull-ups so that by a roller case 4 guiding one injection service duct 5, subsequently, lead described passage 5 cloth W by from the power of the described liquid D of nozzle 6 ejection so that bringing described staining trough 2 into has inlet hole 2a at a high speed, and when just going out described passage 5, from this power, discharge, the described roller 3 so that lead again, partly be immersed in the liquid D in the groove, part floats on the described liquid D.The liquid handling mode of described cloth W also can be seen in common treating apparatus.
But, comprise major cycle mechanism that cloth is handled and the auxiliary circulation mechanism for preparing described treat liquid with the circulatory system of the described liquid D of the cloth treating apparatus T1 of the structure of this embodiment.
Except that described nozzle 6, passage 5 and staining trough 2, the mechanism of front also comprises the suction passage 8 that is connected with the liquid storage part 7 of the bottom that is located at described staining trough 2, the circulating pump 9 that one suction side is connected with described input channel, the liquid feeding channel 10 that is connected with described circulating pump 9, the filter 11 that is connected with the end of described liquid feeding channel 10, the duplex heat exchanger 12 that is connected with described filter 11, the heated liquid service duct 13 that is connected with the outlet of described heat exchanger 12.
The mechanism of back comprises the bypass channel 14 that is connected with described liquid storage part 7, the auxiliary circulating pump 15 that the suction side is connected with described bypass channel 14, the pressurization liquid feeding channel 16 that is connected with the outlet of described auxiliary circulating pump 15, the powder input and the agitator 17 that are connected with the outlet of described liquid feeding channel 16, the back flow channel 18 that is connected with the input of described powder and agitator 17 and described input channel 8, the most outstanding characteristics of cloth treating apparatus T1 are to comprise that described powder imports and agitator 17 in auxiliary circulation mechanism in this embodiment.
For the ease of the preparation method of understanding, below auxiliary circulation mechanism is done additional explanation with the cloth treatment fluid of the cloth treating apparatus of present embodiment structure.
Just, on bypass channel 14 and liquid feeding channel 16, be respectively equipped with electromagnetic valve 14a, 16a.On described back flow channel 18, be provided with electromagnetic valve 18a near described input channel 8 places.In addition, electromagnetic valve 18b is near branched bottom 18 ' near the described bypass channel 14, this branched bottom 18 ' come out from described back flow channel branch, and be connected with described bypass channel 14.In addition, the branched bottom 16 that branch comes out in described liquid feeding channel 16 ' with described input channel 8 links to each other and is provided with electromagnetism check valve 16b liquid stream can only be flowed controllably.In addition, the electromagnetic valve 8a of end that is located at the branched bottom of described input channel 8 discharges the pumping equipment that flows into the treatment fluid in the described cycling mechanism, and electromagnetic valve 8b is the water supply installation that when needed water or hot water is infeeded described input channel 8.The electromagnetic valve 14b of end that is located at the branched bottom of described bypass channel 14 is the pumping equipment of discharging the solution that flows into described auxiliary circulation mechanism, is when needed solvent (just water in the present embodiment or hot water) to be infeeded feeding mechanism in described powder input and the agitator 17 and be located at electromagnetism feed water valve 19 on the described liquid feeding channel 16.Air-supplied barometric control unit when being located at electromagnetic valve 20 on the branched bottom of input of described powder and agitator 17 and being when covering into negative pressure owing to airtight cover 17a in the described bucket if desired.
The following describes the preparation method of the cloth treatment fluid (for example dye solution) of the cloth treating apparatus (T1) of using the present embodiment structure.
As water supply installation, beginning, be located at that electromagnetic valve 8b on the described input channel 8 opens so that the water as solvent is infeeded described major cycle mechanism, and the electromagnetism feed water valve 19 that is located on the described liquid feeding channel 16 is opened with in the powder input and agitator 17 that water are infeeded auxiliary circulation mechanism, reach predetermined level up to it, and described electromagnetic valve 16b, 18a, 18b opens.
Subsequently, when the volume that has stored the water that described major cycle mechanism requires and store up similarly in the powder input of described auxiliary circulation mechanism and the water in the agitator 17 and reached predetermined level, electromagnetism feed water valve 8b, 19 and electromagnetic valve 14a, 16b, 18a and 20 closes, and the water-soluble packed of synthetic resin film system that contains predetermined dyestuff powder (P) goes in described powder input and the agitator 17, covers described lid 17a subsequently to keep airtight in the described bucket 17.Only open described electromagnetic valve 18b subsequently and operate described auxiliary circulating pump 15.Subsequently, described powder input and agitator 17, the branched bottom 18 that return flow line 18 branches that link to each other from the bottom with described bucket 17 come out ', described auxiliary circulating pump 15 and between them the liquid feeding channel 16 of engage formed liquid circulation channel, the water circulation of supply is by described liquid circulation channel, 17,18 ', 16, form strong fluid friction in described powder input and the agitator 17 and make, make described dyestuff powder P and water-soluble synthetic resin bag be played the water decomposition and the dissolving of solvent action in the present embodiment, become the dye solution of high concentration, as long as the circulating pump 9 of described major cycle mechanism also is driven.
When after described powder has been disperseed by described solvent and dissolved, being transformed into the dye solution of high concentration, the electromagnetic valve 14a of the described bypass channel 14 that links with the liquid storage part 7 of described cycling mechanism opens, and described branched bottom 18 ' electromagnetic valve 18b close, the electromagnetic valve 18a of described back flow channel 18 opens, therefore, described liquid circulation channel 17,18 ', 16 disconnections make described main auxiliary cycling mechanism be bonded with each other, so that liquid exchanges therein.Subsequently by described liquid circulation channel 17,18 ', by the treatment fluid flushing of flowing out from described liquid storage part 7, and described dilution turns back in the input channel 8 by described back flow channel 18 the high concentration dye solutions of 16 preparations in described bucket 17.
Subsequently, the concentration that equals the dye solution in auxiliary circulation mechanism when the concentration of the dye solution that flows into described major cycle mechanism is during with the preparation of the dye solution D that finishes preparation concentration, described branched bottom 18 ' electromagnetic valve 18b and described branched bottom 16 ' electromagnetic valve open, and electromagnetic valve 14a and valve 18a close, therefore, remain in described liquid circulation channel 17,18 ', the dye solution in 16 enough takes in the described major cycle mechanism.In this case, owing to be subjected to negative pressure in the described bucket 17, described electromagnetic valve 20 is opened, and described liquid feeding channel 16 is closed so that regulate the interior air pressure of bucket.
Subsequently, illustrated in the above after the cloth treat liquid preparation method, illustrated cloth is subsequently handled the method that the necessary another kind of treatment fluid of operation begins to prepare.
When described auxiliary circulating pump 15 stops, and the electromagnetic valve 14a of described bypass channel 14 and back flow channel 18,18a and described branched bottom 16 ' electromagnetism check valve 16b when all closing, the auxiliary circulation mechanism that comprises described powder input and agitator 17 and described major cycle mechanism disconnect to carry out the liquid circulation that has nothing to do with described major cycle mechanism and to be in preparing the state that is provided with that another kind of cloth treatment fluid requires.That is to say, by opening the electromagnetic valve 16a that regulates the air pressure in the described bucket 17 and being located at the end of the branched bottom that comes out from described bypass channel 14 branches, be used for discharging the electromagnetic valve 14b of liquid, then make and in described bucket 17, remain in the dyestuff powder or liquid washes out fully by opening the electromagnetism feed water valve 19 that is located on the described liquid feeding channel 16 fully.
Subsequently, when cleaning up in the described bucket 17, by closing described electromagnetic valve 14b and opening described electromagnetism feed water valve 19, water infeeds the level that described bucket 17 to is scheduled to.When the water yield in bucket 17 reaches predetermined level, by described electromagnetism feed water valve 19 and electromagnetic valve 16a are closed, the powder that the another kind of cloth treatment fluid of preparation is required infeeds described bucket 17, subsequently, shuts described lid 17a so that keep airtight in the described bucket 17.Subsequently, only open described electromagnetic valve 18b and operate described auxiliary circulating pump 15.
Subsequently, when dye solution D finishes to the processing of the W of cloth, be used for discharging the electromagnetic valve 8a of liquid by the end that stops described pull-out roll 3 and circulating pump 9 and open the branched bottom that is located at described input channel 8, liquid D is discharged from major cycle machine ring fully, and the cloth W that finishes the dyeing processing is taken out from roller case 4 by the outlet 4a that opens roller case 4.Subsequently, open the electromagnetism feed water valve 8b that establishes on the described input channel 8 and in major cycle mechanism, fill major cycle mechanism is cleaned with rinse water, subsequently, make rinse water cycle through described major cycle mechanism and replace the water of making dirty repeatedly with fresh water by driving described circulating pump 9 whenever rinse water is dirty.In described major cycle mechanism, wash down, the new W of cloth for no reason that will then handle is arranged among the device T1, and by as above as the major cycle mechanism that states and the engage between the auxiliary circulation mechanism, the concentration of the cloth treatment fluid in the concentration that makes the treatment fluid that flows in the major cycle mechanism and the auxiliary circulation mechanism equates and another batch processing liquid D of preparing predetermined concentration handles the W of cloth for no reason that puts into.
Second embodiment
Shown in Fig. 2 according to the schematic diagram of the cloth treating apparatus T2 of the structure of second embodiment of the invention.
With described device T2, circulation cloth W is through immersion liquid, dehydration, rubbing, state such as extract and unclamp is so that be immersed in equably in process repeatedly among the cloth treatment fluid D, cloth described in the process repeatedly slowly reaches among liquid (dye liquid just) D that is immersed in when moving through staining trough 2 round in the staining trough 2 of handling bucket 1 bottom, part is immersed in the liquid and partly floats on the described liquid, then, described cloth W is by pull-out roll 3 pull-ups so that by a roller case 4 guiding one injection service duct 5, subsequently, the cloth W of described passage 5 of leading is carried out the inlet hole 2a of described staining trough 2 with hyper tape from the power of the described liquid D of nozzle 6 ejection, and when just going out described passage 5, from this power, discharge, the described roller 3 so that lead again, partly be immersed in the liquid D in the groove, part floats on the described liquid D.Therefore, basically, between the method for the processing cloth of the cloth treating apparatus of the present embodiment and first embodiment, there is not any difference.
Subsequently, the circulatory system with the described liquid D of the cloth treating apparatus T1 of the structure of this embodiment also comprises major cycle mechanism that cloth is handled and the auxiliary circulation mechanism for preparing described treat liquid.Except that described nozzle 6, passage 5 and staining trough 2, the mechanism of present embodiment front also comprises the suction passage 8 that is connected with the liquid storage part 7 of the bottom that is located at described dyestuff groove 2, the circulating pump 9 that one suction side is connected with described input channel, the liquid feeding channel 10 that is connected with described circulating pump 9, the filter 11 that is connected with the end of described liquid feeding channel 10, the duplex heat exchanger 12 that is connected with described filter 11, the heated liquid service duct 13 that is connected with the outlet of described heat exchanger 12.In Fig. 2, label 8a represents to be located at the electromagnetic valve on the branched bottom of described input channel 8, the water that generation besmirched when it was used for discharging the liquid D that described device T2 comes and discharges internal circulation system as cleaning device T2.
The following describes the auxiliary circulation mechanism among the device T2 of present embodiment, it has powder input and agitator 17, it is connected with the bottom of described dyestuff groove 2 by conjugation tube 2a, its liquid level keeps with described dyestuff groove 2 and manages 20 the same level of liquid level, and this pipe 20 couples together described barrel bottom and liquid feeding channel.In this connected, described bucket 17 was provided with the airtight cover 17a that is easy to switch, closed this lid 17a and made described bucket become airtight.Install the most distinctive characteristics of T2 in the present embodiment and be described powder input and agitator 17 and be located in the described auxiliary circulation mechanism, wherein it by described conjugation tube 2a and the bottom connection of described dye beck 2 make fluid level remain on staining trough 2 in liquid level the same.
Below dye solution is illustrated as an example the method for preparing cloth treat liquid D by the cloth treating apparatus T2 of present embodiment.
At first, by opening the electromagnetism feed water valve 8b that is located on the suction passage 8, the water as solvent is added major cycle mechanism.Therefore, the water of required amount exists in the staining trough 2, similarly, as exists the water of the same amount in the described groove 2 to exist in powder input and the agitator 17 by described conjugation tube 2a.When the water yield in bucket 17 reaches predetermined level, infeed in the bucket 27 at the water-soluble bag that contains a certain amount of dyestuff powder P, closing cap 17a opens the electromagnetic valve 21 that is located on the pipe 20 subsequently.Therefore, by the suction of circulating pump 9, the liquid in bucket 17 effectively imports liquid storage part 7 and suction passage 8 by conjugation tube 2a, and sequentially enters in the liquid feeding channel 10 by the outlet of circulating pump 9.At this moment, bucket 17 tendencies that barred up by gas-tight lid 17a become negative pressure, but fluid passage pipe 20 parts that flow to liquid feeding channel 10 turn back in the bucket 17, push back normal condition among the device T2.Subsequently, owing to the conflict that has in bucket 17 aspect three: the suction of pump 9 flows out treatment fluid from conjugation tube 2a; The discharge pressure of pump 9 makes liquid flow in the bucket 17 by managing 20; And the natural action power of keeping level balance in staining trough 2 and the bucket 17, therefore bigger fluid friction take place in bucket 17 cause complicated and strong liquid motion so that stir the bag that contains dyestuff powder P and in time disperse solubilized.
Over time, the concentration of the dye solution of the whole circulation system of inflow device T2 becomes evenly, has finished the dyestuff processing of cloth W in cloth W moves through staining trough 2 and passage 5 and process that dye solution D contacts repeatedly.
The structure of the cloth treating apparatus T2 of second embodiment is more simple in structure than the device T2's of first embodiment, therefore makes inexpensively, and helps the cost of saving equipment and factory.
The 3rd embodiment
Fig. 3 illustrates the cloth treating apparatus T3 of third embodiment of the invention structure.
Basically, the present embodiment and second embodiment do not have difference in the structure aspect following: handle bucket 1, dyestuff groove 2, pull-out roll 3, roller case 4 sprays service duct 5, nozzle 6, liquid storage part 7, suction passage 8, circulating pump 9, liquid feeding channel 10, filter 11, the liquid feeding channel 13 of a plurality of heat exchangers 12 and heating, and cloth treatment method.
In the structure of auxiliary circulation mechanism, the cloth treating apparatus T3 of present embodiment is different with the cloth treating apparatus T2 of second embodiment.In fact, also the device with second embodiment is the same to import and stir the structure of trembling bucket 17 at the powder of the auxiliary circulation mechanism of installing T3, wherein it connects the identical level of liquid level that makes its liquid level maintenance and dyestuff groove 2 with the bottom of staining trough 2 by conjugation tube 2a, but bucket 17 characteristics of present embodiment are that it is connected with the liquid storage part 7 of the bottom that is located at staining trough 2 with 22b by pipe 22a, at two pipe 22a, insert an auxiliary circulating pump 23 between the 22b to quicken liquid stream.That is to say, be located at the pipe 22a in the auxiliary circulation mechanism of cloth treating apparatus T3, the auxiliary circulating pump 23 between the 22b causes very big fluid friction so that stir powder P and more effectively disperse and dissolve in bucket 17.
But the cloth treatment fluid preparation method's who is undertaken by the device T2 of the cloth treating apparatus T3 of the present invention and second embodiment operating procedure does not have big difference.Unique liquid stream that is not both in last device passes through pipe 22a by means of the strong imbibition effect of described auxiliary circulating pump 23 from liquid storage part 7, and 22b is forced to import in the bucket 17.
Therefore, the explanation for preparing the method for cloth treatment fluid for the cloth treating apparatus T3 with present embodiment has been done to omit in order to avoid repeat.
The 4th embodiment
Fig. 4 shows the cloth treating apparatus T4 of fourth embodiment of the invention.
Cloth treating apparatus T4 shown in Figure 4 comprises cloth processing bucket 1, is provided with staining trough 2 in the bottom, is adorning treatment fluid D in groove 2; A pull-out roll 3; One roller case 4; One sprays service duct 5, its be located at handle bucket 1 below, its two ends are connected with staining trough 2, and a nozzle 6, it sprays into passage 5 to liquid D and is fed in the staining trough 2 by passage 5 liquid D is pressurizeed.Processing method with this device T4 is the same with common known devices.That is to say, be placed among the device T4, the liquid D that extends to the pressurized supply of circulation cloth W in the passage 5 by pull-out roll 3 with staining trough 2 quicken to send passage 5 in case with the inflow part 2a of groove 2, in groove 2, slow down subsequently, partly soak in the liquid D that partly floats over groove 2.Subsequently in bucket 2 slowly and the circuitous cloth W that moves be fed to pull-out roll 3 and be drawn out roller 3 again and pull out.This cloth treatment method repeatedly also is general known in the prior art.
The circulatory system of device T4 in this embodiment also comprises major cycle mechanism that carries out the cloth processing and the auxiliary circulation mechanism for preparing the cloth treatment fluid.
At first, remove nozzle 6, passage 5 and staining trough 2, previous mechanism comprises the suction passage 8 that is connected with the liquid storage part 7 of the bottom that is located at staining trough 2, the circulating pump 9 that its suction side is connected with passage 8, the liquid feeding channel 10 that is connected with the outlet of pump 9, the filter 11 that is connected with the end of liquid feeding channel 10, the duplex heat exchanger 12 that is connected with the outlet of filter 11, the heated liquid service duct 13 that heat exchanger 12 is connected with nozzle 6.In addition, near nozzle 6, on heated liquid service duct 13, establish electromagnetic valve 13a, the branched pipe 8 of contiguous suction passage 8 ' the end establish electromagnetic valve 8a, near the suction side of pump 9, establish electromagnetism feed water valve 8b.
Subsequently, back one mechanism comprises the pipe 26 that links to each other with the liquid feeding channel of above-mentioned major cycle mechanism and is located at the top of staining trough 2 and the powder that is connected with the downstream part of pipe 26 is imported and agitator 25.By the way, input of the powder of present embodiment and agitator 25 are columniform, and are provided with the airtight cover 25a that is easy in the top switching, and are provided with perforated plate 25b in the bottom.Therefore,, drop on liquid on the perforated plate 25b run down into staining trough 2 inflow part 2a near.Simultaneously, pipe 26 is provided with electromagnetic valve 26a when not needing water, can block the water that flows in the bucket 25.
Say that with regard to configuration aspects maximum characteristics of the present invention are that the pipe 26 that is connected with the liquid feeding channel 10 of major cycle mechanism is located in the auxiliary circulation mechanism, the downstream part of pipe 26 is connected with powder input and agitator 25.Because this has the structure of characteristics, open electromagnetic valve 26a as long as close the electromagnetic valve 13a of above-mentioned hot liquid service duct 13, liquid is fallen in the bucket 25 intensely, has caused fluid friction big on perforated plate 25b, as shower, cause effectively dispersion of powder P and dissolving.
Therefore, preparation method with the cloth treatment fluid of present embodiment device T4 is very simple, when by opening electromagnetism feed water valve 8b and drive circulating pump 9 when making the water of required amount be stored in the major circulatory system, the airtight cover 25a of bucket 25 opens, the water-soluble bag that contains powder P is fed on the perforated plate, subsequently, when the electromagnetic valve 13a of lid 25a and heating liquid service duct 13 closes and electromagnetic valve 26a when opening, fall the influent stream of the fierceness of the liquid on the bucket 25 bag is applied bigger impulse force from managing 26 downstream part, stir powder P under the fluid friction influence that whirlpool that produces and fluctuation cause in bucket so that disperse rapidly and dissolve powder P.
Subsequently, through after a while, the concentration of the cloth treat liquid D of the whole circulation system of inflow device T4 becomes evenly.After finishing the preparation treat liquid,, just can carry out cloth and handle in effectively mode as long as contact with treat liquid D by mobile repeatedly cloth W between staining trough 2 and passage 5.
The 5th embodiment
These embodiment characteristics are to prepare the cloth treatment fluid of requirement by just in the system there be in the zone of big fluid friction solvent by cloth processing powder is fed to as mixing power big fluid friction local in the circulatory system of cloth treating apparatus and that take place inevitably effectively.
That is to say that the cloth treating apparatus of present embodiment comprises and handles bucket with being provided with, staining trough, the injection service duct of circulation cloth to pass through at a high speed, circulating pump, the common known cloth treating apparatus of heat exchanger etc. is the same.
In configuration aspects, a cloth processing of the maximum characteristics of the cloth treating apparatus of this embodiment powder infeeds mouth and is located near the pump inlet side, the local big fluid friction that reaches in the circulatory system that occurs in device inevitably at this place.
In other words, Fig. 5 illustrates an example, and wherein columniform powder supplies mouth 28 is located on the path 10, near the inlet side of circulating pump (not shown) or the zone that big fluid friction takes place in the circulatory system of device.One contains that cloth that cloth handles the water-soluble bag of powder P1 or infeed import 28 is handled the inlet side of the suction pump of powder P2 own or is stirred by the fluid friction effect that the liquid of discharging from delivery side of pump causes so that in time disperse and dissolve.Subsequently, Fig. 5 label 10a represents to be located at the baffle plate that the branch on the fluid passage inner surface is casually arranged with, and label 28a represents airtight cover.For the local part that big fluid friction takes place in the circulatory system of cloth treating apparatus, or contain cloth and handle the position that the bag of powder P1 or the powder in system that cloth is handled material P2 itself infeed mouth putting into, there is no need to be limited in circulating pump around, but also can be at the passage of nozzle or in the place ahead of the opening portion of nozzle.
Commercial Application
As mentioned above, with cloth treating apparatus of the present invention, because it can process powder to cloth with needing only So easily operation just can prepare the cloth processing of requirement effectively in the circulatory system of infeed device Therefore liquid need to not arrange powder dissolving bucket or liquid control device respectively in factory, not yet Need the cloth treatment fluid of preparation in described bucket or device is installed on the cloth treating apparatus so that feed. Because cloth treating apparatus of the present invention can not prepare the additional space for the treatment of fluid, does not also need The means of transport of the preparation liquid that shipment disperses in factory usually is not only in cloth processing industry The fixedly cost that the maintenance of apparatus brings has reduced and has improved the balance of income and consumption, and And can be at the more useful production equipment of the vacant spatial placement of plant produced line. The life of this structure Produce line and improve widely on the whole the productivity ratio of factory.
In addition, owing to adopt cloth treatment method of the present invention and device to allow preparation to have requirement concentration The cloth treatment fluid and with the good performance of being furnished with of described liquid handling, can solve and relate to the quality control The effective problem of the maintenance of working environment in system and the factory is as owing to transport the cloth place that liquid causes The loss of reason liquid, because spreading out of described liquid causes color to stain and spray loss, because and The liquid residue for preparing previously mixes and causes the impure of liquid, depend on the individual for preparing liquid and The strength of fluid that causes is inconsistent, because liquid is prepared into the time interval of the length between the actual use Cause the change of liquid quality.
In addition, import and stir owing to cloth treating apparatus of the present invention only is provided with powder in the circulatory system Mix bucket or powder supply opening, make its structure simpler, makes more cheap thereby more save the labour and reach Cost.
As mentioned above, cloth treating apparatus of the present invention improves production line thereby the worker of cloth treatment plant greatly The industry using value is very high.
Claims (10)
1. a method for preparing the cloth treatment fluid and handle cloth with described treatment fluid continuously in the cloth treatment fluid circulatory system of the inside of cloth treating apparatus comprises the following steps:
A. cloth being handled powder infeeds and is located in the described circulatory system there to be in the powder input and agitator of big fluid friction solvent;
B. stir described powder by effectively utilizing the described fluid friction that in described powder input and mixing part, produces;
Thereby prepare treatment fluid, and be used in the described circulatory system the described liquid that flows and handle described cloth continuously with requirement concentration.
2. according to the preparation cloth treatment fluid of claim 1 with in the cloth treatment fluid circulatory system of the inside of cloth treating apparatus, handle the method for cloth continuously with described treatment fluid, it is characterized in that: comprise by using the big fluid friction that in powder input and mixing part, produces to mix power effectively and disperse and dissolve cloth to handle powder, mix and dilute solution with the cloth treatment fluid that flows through the described circulatory system, the described circulatory system has a major circulatory system and an auxiliary circulation system, described major cycle mechanism, it is fed to described treatment fluid in the treatment channel of the described cloth of handling, described auxiliary circulation system comprises described powder input and mixing part, it engages with described major cycle mechanism, makes major cycle mechanism can freely be connected and throw off with described auxiliary body with preparation by this way and has certain density described treatment fluid and handle described cloth continuously with described treatment fluid.
3. a method for preparing the cloth treatment fluid and handle cloth with described treatment fluid continuously in the cloth treatment fluid circulatory system of the inside of cloth treating apparatus comprises the following steps:
A. cloth is handled powder and infeed that solvent has in the zone of big fluid friction in the described circulatory system;
B. stir described powder by effectively utilizing in the described fluid friction of described region generating;
Thereby prepare treatment fluid, and be used in the described circulatory system the described liquid that flows and handle described cloth continuously with requirement concentration.
4. according to the preparation cloth treatment fluid of claim 3 with in the cloth treatment fluid circulatory system of the inside of described device, handle the method for cloth continuously, it is characterized in that also comprising that cloth is handled powder to infeed and be located near the circulating-pump outlet that turbulent flow takes place and be located in the powder import on the nozzle with described liquid.
5. one kind is used to prepare the cloth treating apparatus with certain density cloth treatment fluid, wherein infeed in powder input in the cloth treatment fluid circulatory system that is located at described device and the agitator by cloth being handled powder that preparation is described to have certain density liquid, in powder and agitator, big fluid friction takes place so that disperse and dissolve described powder by effectively utilizing described fluid friction.
6. be used to prepare cloth treating apparatus according to claim 5 with certain density cloth treatment fluid, the cloth treatment fluid circulatory system that it is characterized in that described device comprises a major cycle mechanism and an auxiliary circulation mechanism, described major cycle mechanism infeeds described liquid in the cloth treatment channel of handling cloth, described auxiliary circulation mechanism is bonded into described major cycle mechanism and makes major cycle mechanism be connected and to throw off with described auxiliary circulation institution freedom ground, and described auxiliary circulation mechanism comprises that a solvent has the powder input and the mixing part of big fluid friction.
7. be used to prepare cloth treating apparatus according to claim 6 with certain density cloth treatment fluid, the auxiliary circulation mechanism that it is characterized in that constituting the circulatory system part of described device is provided with independently auxiliary circulating pump, can cause the liquid stream of pressurization in described auxiliary circulation mechanism.
8. one kind is used to prepare the cloth treating apparatus with certain density cloth treatment fluid, wherein in the cloth treatment fluid circulatory system that is located at described device there be in the powder input port of establishing in the zone of big fluid friction so that by effectively utilizing described fluid friction dispersion and dissolving described powder, have certain density described liquid and prepare solvent by cloth processing powder is infeeded.
9. the cloth treating apparatus that has certain density cloth treatment fluid according to the preparation of claim 8 is characterized in that described powder input port is located near the suction side of circulating pump in the circulatory system of described device.
10. the cloth treating apparatus that has certain density cloth treatment fluid according to the preparation of claim 8 is characterized in that described powder input port is located at the open region of a nozzle, produces turbulent flow at this place.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21055095 | 1995-08-18 | ||
| JP21054795 | 1995-08-18 | ||
| JP210547/95 | 1995-08-18 | ||
| JP210550/95 | 1995-08-18 | ||
| JP24760695 | 1995-09-26 | ||
| JP247606/95 | 1995-09-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1154150A true CN1154150A (en) | 1997-07-09 |
| CN1087795C CN1087795C (en) | 2002-07-17 |
Family
ID=27329134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96190329A Expired - Fee Related CN1087795C (en) | 1995-08-18 | 1996-04-16 | Method of preparing treating liquid in circulating system of cloth treating machine and treating cloth with the liquid and cloth treating machine having the function |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0787845B1 (en) |
| JP (1) | JP3559287B2 (en) |
| KR (1) | KR100236620B1 (en) |
| CN (1) | CN1087795C (en) |
| DE (1) | DE69624675T2 (en) |
| HK (1) | HK1001867A1 (en) |
| TW (1) | TW304210B (en) |
| WO (1) | WO1997007276A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101117759B (en) * | 2006-08-03 | 2011-06-15 | 巴苏尼股份公司 | Machine for the discontinuous dyeing of fabric products |
| CN101492866B (en) * | 2008-11-17 | 2011-07-13 | 浙江丝绸科技有限公司 | Gradually dyeing novel process for fabric and employed dyeing apparatus |
| CN102168353A (en) * | 2010-02-25 | 2011-08-31 | 布拉佐利股份公司 | Plant for the discontinuous treatment of yarns or fabrics |
| CN102505389A (en) * | 2011-09-30 | 2012-06-20 | 佛山市三技精密机械有限公司 | Collar cloth dyeing machine |
| CN103233333A (en) * | 2013-04-28 | 2013-08-07 | 昆山市周市斐煌服饰厂 | Garment dyeing refurbishment device |
| CN103233335A (en) * | 2013-04-28 | 2013-08-07 | 昆山市周市斐煌服饰厂 | Dyeing device for clothes |
| CN103266438A (en) * | 2013-05-28 | 2013-08-28 | 无锡市众伟染整设备有限公司 | Energy-saving level-dyeing system of dyeing machine |
| CN103741419A (en) * | 2013-12-30 | 2014-04-23 | 吴江市豪辉布业有限公司 | Dye liquor concentration compensation structure |
| CN109661489A (en) * | 2016-08-29 | 2019-04-19 | 株式会社日阪制作所 | The inorganic agent dissolver and liquid flow type cloth treatment device of liquid flow type cloth treatment device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020067277A (en) * | 2001-02-16 | 2002-08-22 | 박종현 | Dyes supplying device of high-temperature/high-tension dyeing machine |
| US6672114B2 (en) * | 2002-01-10 | 2004-01-06 | Milliken & Company | Apparatus for batch dyeing |
| CN102493144B (en) * | 2011-11-01 | 2014-05-28 | 衢州学院 | Natural printing-dyeing device |
| JP5750401B2 (en) * | 2012-05-24 | 2015-07-22 | 株式会社日阪製作所 | Liquid-flow fabric processing equipment |
| JP6149069B2 (en) * | 2015-06-26 | 2017-06-14 | 株式会社日阪製作所 | Treatment agent input device for liquid flow type fabric treatment device |
| JP6149070B2 (en) * | 2015-06-26 | 2017-06-14 | 株式会社日阪製作所 | Treatment agent supply device for liquid flow type fabric treatment device |
| JPWO2019065971A1 (en) * | 2017-09-29 | 2020-10-22 | Ｓｐｉｂｅｒ株式会社 | Spinning equipment |
| CN108035095A (en) * | 2018-01-10 | 2018-05-15 | 宁波高新区盛文途纺织品有限公司 | Textile processing device |
| CN113882103A (en) * | 2021-10-29 | 2022-01-04 | 建湖县新宇纺织有限公司 | Automatic change blending processing with bleaching and dyeing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4622933Y1 (en) * | 1967-09-23 | 1971-08-09 | ||
| JPS4622932Y1 (en) * | 1967-09-23 | 1971-08-09 | ||
| JPS4622934Y1 (en) * | 1967-09-23 | 1971-08-09 | ||
| DE2534618C3 (en) * | 1975-08-02 | 1978-03-23 | Hoechst Ag, 6000 Frankfurt | Method and device for isothermal high-temperature dyeing |
| JPH0627679Y2 (en) * | 1991-12-20 | 1994-07-27 | 株式会社日阪製作所 | Powder feeder |
| JPH07111024B2 (en) * | 1993-10-05 | 1995-11-29 | 株式会社サカイエルコム | Method for directly adding dusting agent to a cloth processing machine, and cloth processing machine used therefor |
-
1996
- 1996-02-15 TW TW085101920A patent/TW304210B/zh active
- 1996-04-16 KR KR1019960706698A patent/KR100236620B1/en not_active IP Right Cessation
- 1996-04-16 WO PCT/JP1996/001037 patent/WO1997007276A1/en active IP Right Grant
- 1996-04-16 JP JP52557396A patent/JP3559287B2/en not_active Expired - Fee Related
- 1996-04-16 CN CN96190329A patent/CN1087795C/en not_active Expired - Fee Related
- 1996-04-16 DE DE69624675T patent/DE69624675T2/en not_active Expired - Fee Related
- 1996-04-16 EP EP96909380A patent/EP0787845B1/en not_active Expired - Lifetime
-
1998
- 1998-02-05 HK HK98100875A patent/HK1001867A1/en not_active IP Right Cessation
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101117759B (en) * | 2006-08-03 | 2011-06-15 | 巴苏尼股份公司 | Machine for the discontinuous dyeing of fabric products |
| CN101492866B (en) * | 2008-11-17 | 2011-07-13 | 浙江丝绸科技有限公司 | Gradually dyeing novel process for fabric and employed dyeing apparatus |
| CN102168353A (en) * | 2010-02-25 | 2011-08-31 | 布拉佐利股份公司 | Plant for the discontinuous treatment of yarns or fabrics |
| CN102505389B (en) * | 2011-09-30 | 2014-03-12 | 佛山市三技精密机械有限公司 | Collar cloth dyeing machine |
| CN102505389A (en) * | 2011-09-30 | 2012-06-20 | 佛山市三技精密机械有限公司 | Collar cloth dyeing machine |
| CN103233333A (en) * | 2013-04-28 | 2013-08-07 | 昆山市周市斐煌服饰厂 | Garment dyeing refurbishment device |
| CN103233335A (en) * | 2013-04-28 | 2013-08-07 | 昆山市周市斐煌服饰厂 | Dyeing device for clothes |
| CN103266438A (en) * | 2013-05-28 | 2013-08-28 | 无锡市众伟染整设备有限公司 | Energy-saving level-dyeing system of dyeing machine |
| CN103266438B (en) * | 2013-05-28 | 2015-07-29 | 无锡市众伟染整设备有限公司 | The energy-conservation level dyeing system of a kind of dyeing machine |
| CN103741419A (en) * | 2013-12-30 | 2014-04-23 | 吴江市豪辉布业有限公司 | Dye liquor concentration compensation structure |
| CN103741419B (en) * | 2013-12-30 | 2015-12-30 | 启东华恩箱包有限公司 | Dye liquor concentration compensation structure |
| CN109661489A (en) * | 2016-08-29 | 2019-04-19 | 株式会社日阪制作所 | The inorganic agent dissolver and liquid flow type cloth treatment device of liquid flow type cloth treatment device |
| CN109661489B (en) * | 2016-08-29 | 2021-11-02 | 株式会社日阪制作所 | Treating agent dissolving device for liquid flow type fabric treating device, and liquid flow type fabric treating device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0787845A1 (en) | 1997-08-06 |
| CN1087795C (en) | 2002-07-17 |
| KR100236620B1 (en) | 2000-03-02 |
| TW304210B (en) | 1997-05-01 |
| HK1001867A1 (en) | 1998-07-17 |
| EP0787845A4 (en) | 1999-06-16 |
| EP0787845B1 (en) | 2002-11-06 |
| DE69624675T2 (en) | 2003-07-24 |
| JP3559287B2 (en) | 2004-08-25 |
| DE69624675D1 (en) | 2002-12-12 |
| WO1997007276A1 (en) | 1997-02-27 |
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