CN1051213A - Use the dry-cleaning method of petroleum solvent series - Google Patents
Use the dry-cleaning method of petroleum solvent series Download PDFInfo
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- CN1051213A CN1051213A CN90108368A CN90108368A CN1051213A CN 1051213 A CN1051213 A CN 1051213A CN 90108368 A CN90108368 A CN 90108368A CN 90108368 A CN90108368 A CN 90108368A CN 1051213 A CN1051213 A CN 1051213A
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- dry
- solvent
- ablution groove
- cleaning method
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F43/00—Dry-cleaning apparatus or methods using volatile solvents
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
- Treatment Of Fiber Materials (AREA)
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Abstract
The present invention system is about using the dry-cleaning method of petroleum solvent series, it is before clothes class dry run, at least comprise the process that is decompressed to authorized pressure (underpressure) in the ablution groove of clothes class with holding, and thereafter non-activity gas is directed in this groove, the oxygen concentration that makes ablution groove contain the mist of solvent gas is below setting, it is the following process of peak value of knock limit, can eliminate the danger of solvent blast thus, and can shorten the clothes class dry need time.
Description
The present invention system in more detail, especially about when the clothes class is dry, can prevent the safe dry-cleaning method of vaporized solvent blast about using the dry-cleaning method of the lower petroleum solvent series of ignition point.
The operation of general so-called dry-cleaning is divided into two kinds by clean clothes class with solvent types, that is, the dry-cleaning of use petroleum solvent series and use are as the dry-cleaning of tetrachloro-ethylene (Tetrachloroet hylene) synthetic.Petroleum solvent series is got from the underground crude oil of taking by refining, and the boiling point difference during because of rectifying is divided into various goods.These two kinds dry-cleaning employed machine, soap, operational method difference, and the influence after the clothes class washed is also different.
Existing dry-cleaning method comprises at least: donor solvent to the rotating ablution groove at a slow speed to clean the process of clothes class: high speed rotary ablution groove and the process of sloughing liquid; The discharge liquor body and function steam thermal source of being sloughed is given indirect and distillation becomes it into distillation, the removal process that cleaning solvent reclaims by condenser (condenser) and moisture content separator; And the clothes class that will slough liquid gives the dry condensing solvent that gasifies simultaneously and the drying, the removal process that reclaim.The device of carrying out this dry-cleaning method is generally: will clean respectively and combined type dry-cleaning apparatus that liquid remover, drying machine and distillation device are made up; Perhaps, will possess have clean, take off liquid, and the device and the distillation device of dry each function be assembled into holistic dry-cleaning apparatus.In the existing dry-cleaning method that uses petroleum solvent series, because of the ignition point of petroleum solvent series is low to moderate about 41 ℃, especially in drying, solvent recovery process, when being fed in the ablution groove by the air that heater heated, by the cyclic drying system, the drying clothes class, the temperature of clothes class rises gradually, and solvent gas diminishes to the ratio of air simultaneously.In this existing dry-cleaning method, because the spark that sent of clothes class static, or the metal and the metal in the groove of sneaking into lighter in the clothes class etc. partly collide the spark that is taken place, and solvent vapour caught fire and the danger that sets off an explosion is arranged.For example, in open communique 61-240999 number of Japan Patent, disclosed lower dry with of the gasification of bucket internal pressure to promote to mix solvent in the clothes class so that the vacuum drier of the baking temperature of reduction clothes class.Yet, in this vacuum drier, restive dry with the ratio of bucket internal solvent gas to air, and there is catastrophic discontinuityfailure etc. in the heater for heating air of supply in order to the drying clothes class, make when employed solvent is the low petroleum solvent series of ignition point, can't prevent the solvent gas blast fully.
Generally speaking, unless solvent vapour and AIR MIXTURES its form in scope to a certain degree, otherwise no matter give great energy, it is caught fire.This ignitable composition (temperature) boundary is called as limit of inflammability (Limits of inflammability; The existence of low limit and high limit is arranged).This limit of inflammability is not limited to occur in the occasion of its composition by a kind of inflammable substance and the formed gaseous mixture of air, and also can occur many compositions system.For example, during to solvent vapour and Air mixing system interpolation incombustible, its low limit there is no variation, but high limit promptly has significant reduction.Combustion range is along with the increase of addition narrows down gradually, and when addition arrived certain value, it is consistent that its low limit and high limit become, and forms regardless of gaseous mixture, all can not burn.Therefore, this point is called as the peak value of limit of inflammability, and this value is determined by the composition and the substance kind of hybrid system.Be used in widely at the interpolation of the incombustible of limit of inflammability and prevented blast and fire extinguishing in the industry of using flammable mist, very important on taking precautions against natural calamities.
The present invention's dry-cleaning method system is conceived to the following fact and forms: oxygen concentration in the peak value of limit of inflammability and solvent species are irrelevant, are about 11% during with nitrogen dilution, are about 14% when diluting with carbon dioxide, promptly can not burn below it.
The objective of the invention is to, a kind of safe dry-cleaning method is provided, when using the lower petroleum solvent series of ignition point to dry-clean, can prevent the explosion accident of vaporized solvent.
For reaching above-mentioned purpose, the dry-cleaning method of use petroleum solvent series of the present invention is characterized as, at least before the process of drying clothes class, at least comprise and be decompressed to authorized pressure (under pressure) holding in the ablution groove of clothes class, then, import non-activity gas in ablution groove, to keep containing in the mist of the solvent gas process of oxygen concentration below setting.
In the dry-cleaning method of use oil series solvent of the present invention, at least before dry run, authorized pressure will be decompressed in the ablution groove, reduce in the mist oxygen concentration thus to setting, then import non-activity gas, the oxygen concentration that can keep being diluted by non-activity gas below setting, thereby in dry run thereafter, can eliminate the danger of solvent gas blast fully.And this non-activity gas becomes the hot media that replaces air and the drying time that can shorten the clothes class.
Again, above-mentioned decompression, the process that imports non-activity gas also can be carried out before a succession of process of carrying out dry-cleaning.Promptly, in ablution groove, hold after the clothes class, will be decompressed to authorized pressure in the ablution groove, then, import non-activity gas, to keep ablution groove to contain that oxygen concentration is below the setting in the gaseous mixture of solvent gas, under this state, carry out the process of cleaning thereafter continuously, take off the liquid process, wash process, discharge opeing distillation process, dry solvent removal process.
The simple declaration of accompanying drawing
Accompanying drawing 1 is the summary pipe arrangement route map in order to the device of carrying out dry-cleaning method of the present invention.
Referring now to accompanying drawing, just the embodiment of one of dry-cleaning method of the present invention is described as follows.Roughly show the whole system of carrying out dry-cleaning method of the present invention among the figure.10 serve as reasons holds bucket (inner drum) 12 within the clean clothes class of institute's desire, reaches outer bucket (outer drum) 14 ablution grooves that constituted, and bucket 14 is provided with switch and puts clothes class entrance door 13 into outward.In ablution groove 10, clean the method for clothes class, have from kerve (baes tank) the 16 usefulness pumps 18 that hold solvent and supply with the solvent of ormal weight to ablution groove 10, make the delay that implementation is cleaned under the state of solvent hold-up in groove 10 wash method, and make the circulation of cleaning under the state of solvent recycle wash two kinds of methods.But press kind, the contamination situation of clothes class, conditions such as weight have respectively and clean in independent clean mode, or carry out earlier and be detained the method for washing, and then carry out circulation and wash method.In the present embodiment, just be illustrated to carry out circulation to wash method.Again, employed in the present embodiment solvent is " dried solvent " (Dry Slovent, trade mark) of Nippon Oil Co., Ltd's product, and its ignition point is about 41 ℃.
In dry cleaning system, comprising: circulating path A, it from kerve 16 through cleaner 15 and donor solvent in ablution groove 10, make circulation cleaning by button lock (button trap) again; Path B, it will be sent to still 20 from the dirty solvent (discharge liquor) that contains that the clothes class is sloughed by high speed rotary ablution groove 10; Path C, it is in still 20, and by condenser 22 and moisture content separator 24, valve 25 is with high-temperature vapor institute's indirect of source of water vapor and the solvent of distillation, becomes cleaning solvent and is recovered in cleaning solvent groove 26; Dry path D, it comprises dirt catcher 30(dust filter), fan 31, and heater 32, and the clothes class that can dry be sloughed liquid; Reach the solvent that is gasified with condenser 34 condensation clothes classes and ablution groove inner face, and reclaim it in the recovery path of kerve 16 E by moisture content separator 38; Other possesses the vavuum pump 42 that is connected to dry path D by valve 44 is arranged, and is connected to the nitrogen gas generation device 46 of ablution groove 10 by pressure-reducing valve 48.Now details are as follows just to use the dry-cleaning method of above-mentioned dry cleaning system.
At first, the supply system of the solvent in the ablution groove 10 from kerve 16, by pump 18, is sent by the path of valve 50 → check-valves 52 → cleaner 15 → valve 54 → ablution groove 10.Solvent liquid level in the ablution groove 10 is by the high liquid level (HLL) floating drum 58 that is located in the button lock 17, or low liquid level floating drum 60 is set in assigned position; When arriving the setting liquid level as liquid level in the ablution groove, valve 50 promptly separates kerve 16 and pump 18, and the entrance side of connection pump 18 is on button lock 17.Therefore, arrive to set liquid level after, solvent promptly circulates from the path of ablution groove 10 → valve 56 → button lock 17 → valve 50 → check-valves 52 → cleaner 15 → valve 54 → ablution groove 10.At solvent so under the state of circulation, bucket 12 is just changeing with low speed or is reversing and to carry out the circulation of clothes class clean within the ablution groove 10.
After finishing above-mentioned clean process, valve 50 promptly separates kerve 16 and pump 18, and the entrance side and the button lock 17 of separate pump 18, and then, the valve 62 that is located at button gatherer 17 is opened.Then, dirty dirty solvent promptly is sent to still 20 by valve 62 and check-valves 66, then, bucket 12 is by high speed rotary within the ablution groove 10, slough that dirty dirty solvent is sent to still 20 similarly in the clothes class of liquid, at the dirty dirty solvent of this place's distillation, the solvent of gasification promptly is condensed in condenser 22.By the solvent of the cleaning of distillation gained then by moisture content separator 24, valve 23, valve 25 and be recovered to peace and quiet fuel tank 26.The cleaning solvent that is recovered to peace and quiet fuel tank 26 is used in following washing in the process.Again, the moisture content that is separated in moisture content separator 24 promptly temporarily is retained in the water tank 72, is discharged from after distillation is ended.As above-mentioned distillation removal process in, distillation reclaims path C by vavuum pump 74 exhausts, keeps the pressure (under pressure) of about 160 Bristols (Torr).Promptly be closed, and valve 23,25 is made vavuum pump 74 start under the state of breakdown, successively opened valve 76 and the exhaust of beginning distillation recovery path C at valve 70,73,80,82.The pressure control device that contains vacuum meter 34 that is located at distillation recovery path C is shown in dotted line, the pressure in the respective path, and the switch of adjustment valve 76 is with the pressure (under pressure) of keeping about 160 Bristols.Like this, though be supplied in the steam temperature end as thermal source of still 20, though that is vapour pressure low, be enough to the distillation solvent, and can have shortened the required time of distillation.
The process of washing is promptly roughly discharged from ablution groove 10 when the above-mentioned dirty solvent of dirt, when the clothes class is sloughed dirty dirty solution, within the ablution groove 10 barrel 12 by the state of high speed rotary under, valve 25,76 is closed, valve 70,78 by breakdown, and cleaning solvent is supplied in the ablution groove 10 from peace and quiet fuel tank 26.Washing the used solvent of institute gets back in the kerve 16 by valve 56 and the valve 64 that is located at button lock 17.That is because after the dirty dirty solvent of the high speed rotary of bucket 12, clothes class was sloughed haply within the ablution groove 10, valve 62 was closed, and valve 64 is by breakdown.
After this washed process, the dry path D that comprises ablution groove 10 was interior with vavuum pump 42 exhausts.
Be depressurized to that the oxygen concentration of mist becomes till about 5 volume % in the D of path, then, importing nitrogen, keep diluted oxygen concentration by nitrogen from nitrogen gas generation device 46 is that the state of about 5.0 volume % carries out dry run.Now details are as follows.
In the process of washing at the end, valve 54,70 are closed, valve 56 is by breakdown simultaneously, but the position that exceeds the regulation liquid level of ablution groove 10 is communicated with by the valve 57 that is located at button lock 17 tops with the top of kerve 16, and, should be the upper space of ablution groove 10 inside, dry path D, button lock 17, and the upper space (used solvent is housed inside in the kerve 16 in the process of washing) of bottom receptacle 16 by the space of 42 exhausts of vavuum pump because of the valve in the dry path D 29 and 33 is opened; And the volume of this exhaust space is about 1,400 liter in the present embodiment.This space of answering exhaust in the process of washing at the end, solvent gas is opened valve 44 and is promptly begun exhaust abrim.Pressure in the ablution groove 10 is comprised that the pressure control device 84 of vacuum meter monitors, valve is closed when the pressure in the ablution groove 10 arrives the 160-260 Bristol.The oxygen concentration sensor 92 that oxygen concentration in the dry path D is configured in kerve 16 upper spaces is measured, and the preceding oxygen concentration of exhaust is about 20.8 volume %, but the oxygen concentration after the exhaust promptly becomes and is about 5.0 volume %.Pressure-reducing valve 48 is opened under this state, from the nitrogen of nitrogen gas generation device 46 importing purity about 99%, till the pressure in dry path D becomes the 560-610 Bristol.Under this state, the oxygen concentration in the dry path D becomes about 5.2 volume %.Begin dry solvent recovery process from this state.
At first, fan 31 is driven, the temperature of heater 32 is set to about 80 ℃ (promptly 50 ℃ of outlet sides), and dry freezer unit (chiller) water temperature with condenser 34 is set at entrance side and is about 13 ℃-15 ℃, and begins dry solvent recovery process.The nitrogen hot media that contains of dry path D is promptly heated by heater 32, is circulated in dry path D and the ablution groove 10 by fan 31, and this moment, the clothes class was dried.Like this, nitrogen replaces air and becomes hot media, and because of being depressurized in the system, the gasification of solvent that the clothes class contains becomes active and can shorten dry required time, can eliminate the danger of blast simultaneously fully.Again, the solvent that is gasified promptly is condensed in condenser 34, is recovered in the kerve 16 by moisture content separator 38.Under the state that this dry solvent removal process finishes, because of dry path D below atmospheric pressure, open after the valve 90 that is located at dry path D, open the clothes class that door 13 just can take out drying.
In this embodiment, consecutive process one of till cleaning process and finishing to the dry solvent removal process, the oxygen concentration of mist is monitored by oxygen concentration sensor 92 in the dry path D, when its concentration became about 10 volume %, warning device (not shown) started and the operator is given a warning.Again, can be in whole process, oxygen concentration sensor 92 is connected in not shown micro computer with the pressure control device 84 that is located at distillation recovery path C, when oxygen concentration reaches about 10 volume %, open valve 48 and import nitrogen once again to dry path D, be 5.2 volume % with diluted mixture gas to oxygen concentration till.In addition, import nitrogen in dry path D, become the 560-610 Bristol, make its pressure equal atmospheric pressure but also can import nitrogen up to its pressure from nitrogen gas generation device 46.And in fact, the oxygen concentration in the time of should making this is for below 11 volume %.At this moment, read the scale of the vacuum meter (not shown) that is located at ablution groove 10, to confirm pressure, for safety, opening valve 90, to make pressure in the dry path D be after the atmospheric pressure, opens door 13 and take out dry clothes class.Also can use carbon dioxide as non-activity gas, at this moment, make in its diluted mist oxygen concentration be that about 14 volume % are following and get final product.On dirt catcher 30, be provided with again with 0.06Kg/cm
2The safety valve 94 of pressure breakdown so that restrain the abnormal ascending of dry path D internal pressure.And, be preferably in self-loopa and wash process to a succession of process of dry solvent removal process end, dry path D often is communicated in ablution groove 10, but is opening after pressure that valve 90 makes dry path D is atmospheric pressure, shut off valve 29,33,56,57, ablution groove 10 and other devices are separated, prevent that solvent gas from entering in the ablution groove 10, then, take out dry clothes class.
In addition, in dry-cleaning method of the present invention, can also hold the clothes class in ablution groove 10 after, immediately with the pressure in the vavuum pump decompression ablution groove 10 to authorized pressure, then, import non-active gas, make that oxygen concentration remains on below the setting in the mist that contains solvent gas, under this state, carry out clean process thereafter continuously, take off the liquid process, wash process, take off liquid distillation process, the dry solvent removal process.In this dry-cleaning method, oxygen concentration remains on below the setting in the mist that contains solvent gas to major general's ablution groove 10, that is the air that contains solvent gas by the state that nitrogen diluted under, the clothes class is cleaned, is taken off liquid, washed and is dried, and can prevent the blast of the solvent gas in a succession of process.
As mentioned above, the present invention system is in view of in a succession of process of dry-cleaning of using the lower petroleum solvent series of ignition point, contains oxygen concentration in the mist of solvent gas, can not explode truely to become when the peak value of inflammability limit is following; Which comprises at least before dry run, to be decompressed to authorized pressure in the ablution groove 10 with vavuum pump, then, import the process of nitrogen, make thus at least at ablution groove 10 and contain in the mist of solvent oxygen concentration below setting, that is below the peak value of limit of inflammability, therefore, can suppress to Min. resulting from the explosion hazard that solvent gas catches fire.
Claims (3)
1, a kind of dry-cleaning method, it is characterized in that, in the dry-cleaning method that uses petroleum solvent series, hold to the major general in the ablution groove of clothes class and be decompressed to authorized pressure (undcr pressure), import non-activity gas then, and make ablution groove contain that oxygen concentration is below the setting in the mist of solvent gas, drying clothes class then.
2, a kind of dry-cleaning method which comprises at least: the clothes class is contained in ablution groove, to rotating ablution groove donor solvent at a slow speed and clean clean process; After the process of cleaning finishes, the liquid process of taking off of sloughing liquid with the high speed rotary ablution groove; And after taking off the end of liquid process, ablution groove is communicated in the dry path that comprises heater, make and add hot-air and between ablution groove and dry path, circulate, and, the solvent that is gasified with condenser (condenser) condensation and the dry solvent removal process that reclaims, it is characterized in that, in above-mentioned dry-cleaning method, comprise following process: before above-mentioned dry solvent removal process, in the above-mentioned ablution groove and dry path is decompressed to authorized pressure (under pressure), then, ablution groove is imported non-activity gas, and oxygen concentration is till below the setting to the mist that contains solvent gas.
3, a kind of dry-cleaning method that uses petroleum solvent series which comprises at least: the clothes class is contained in ablution groove, to rotating ablution groove donor solvent at a slow speed and clean clean process; The process of cleaning finishes the liquid process of taking off that liquid is sloughed with the high speed rotary ablution groove in the back; And after taking off the end of liquid process, ablution groove is communicated in include the dry path of heater, make and add hot-air and between ablution groove and dry path, circulate, and with solvent that condenser condenses was gasified and the dry solvent removal process that reclaims, it is characterized in that, in above-mentioned dry-cleaning method, comprise and hold above-mentioned clothes class after ablution groove, to be decompressed to authorized pressure (under pressure) in the ablution groove and the dry path, then, to importing non-activity gas in the above-mentioned ablution groove and the dry path, oxygen concentration is the process till below the setting to the mist that contains solvent gas, and then this process is carried out above-mentioned clean process, take off the liquid process, and the dry solvent removal process.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1263016A JPH0649117B2 (en) | 1989-10-11 | 1989-10-11 | Drying method for dry cleaning with flammable solvent |
| JP263016/1989 | 1989-10-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1051213A true CN1051213A (en) | 1991-05-08 |
| CN1022939C CN1022939C (en) | 1993-12-01 |
Family
ID=17383714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90108368A Expired - Fee Related CN1022939C (en) | 1989-10-11 | 1990-10-11 | Dry-cleaning method using petroleum solvent series |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0422603A1 (en) |
| JP (1) | JPH0649117B2 (en) |
| KR (1) | KR950003374B1 (en) |
| CN (1) | CN1022939C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454095A (en) * | 2010-10-26 | 2012-05-16 | 林内株式会社 | Clothes drier |
| WO2020043146A1 (en) * | 2018-08-31 | 2020-03-05 | 美丰工业有限公司 | Dry cleaning machine, dry cleaning system, and dry cleaning method |
| CN113089275A (en) * | 2021-03-26 | 2021-07-09 | 济南汇捷智能科技有限公司 | Active safety detection method for dry cleaning machine |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3935032C3 (en) * | 1989-10-20 | 2000-08-24 | Zinser Raimund | Method and device for cleaning and drying objects |
| JPH0696076B2 (en) * | 1990-02-01 | 1994-11-30 | 三洋電機株式会社 | Dry cleaner |
| DE4232647C2 (en) * | 1991-11-18 | 1996-03-07 | Satec Gmbh | Process and device for dry cleaning textiles |
| JPH05186702A (en) * | 1992-01-13 | 1993-07-27 | Fuji Xerox Co Ltd | Mixed crystal of dihalogenotin phthalocyanone with halogenogallium phthalocyanine and electrophotographic photoreceptor comprising the same |
| JP2588568Y2 (en) * | 1992-06-30 | 1999-01-13 | 株式会社東京洗染機械製作所 | Inert gas introduction dry cleaning device |
| EP0698680B1 (en) * | 1994-02-25 | 2000-07-19 | Ebara Corporation | Method for deodorizing and refreshing for dry cleaning and dry cleaning apparatus using such method |
| DE4343488A1 (en) * | 1993-12-20 | 1995-06-22 | Walter Dr Ing Baumann | Device for cleaning textiles |
| IT1269091B (en) * | 1994-03-31 | 1997-03-21 | Renzacci Spa | METHOD FOR DRY CLEANING OF LINEN WITH UNHALOGENATED HYDROCARBON SOLVENT |
| CN1055260C (en) * | 1994-09-09 | 2000-08-09 | 叶和辉 | Slag-collecting heat-insulating covering agent |
| JPH08332301A (en) * | 1995-06-06 | 1996-12-17 | Tokyo Sensen Kikai Seisakusho:Kk | Recovery drying machine fitted with distiller |
| CN1061912C (en) * | 1997-03-27 | 2001-02-14 | 河北省正定县建筑保温材料厂 | Method for making thermal-insulating riser cover used in aluminium alloy casting |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE296538C (en) * | ||||
| DE303106C (en) * | ||||
| FR1062E (en) * | 1903-05-25 | Barbe Louis Etienne | New dry cleaning process | |
| DE700093C (en) * | 1939-07-02 | 1940-12-13 | Moritz Jahr G M B H | Procedure for operating washing machines for carrying out the procedure |
| JPS62224398A (en) * | 1986-03-25 | 1987-10-02 | 株式会社 山本製作所 | Drying method for preventing explosion in dryer for dry cleaning |
-
1989
- 1989-10-11 JP JP1263016A patent/JPH0649117B2/en not_active Expired - Fee Related
-
1990
- 1990-10-10 EP EP90119398A patent/EP0422603A1/en not_active Withdrawn
- 1990-10-11 CN CN90108368A patent/CN1022939C/en not_active Expired - Fee Related
- 1990-10-11 KR KR1019900016098A patent/KR950003374B1/en not_active IP Right Cessation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454095A (en) * | 2010-10-26 | 2012-05-16 | 林内株式会社 | Clothes drier |
| CN102454095B (en) * | 2010-10-26 | 2015-06-17 | 林内株式会社 | Clothes drier |
| WO2020043146A1 (en) * | 2018-08-31 | 2020-03-05 | 美丰工业有限公司 | Dry cleaning machine, dry cleaning system, and dry cleaning method |
| CN110872770A (en) * | 2018-08-31 | 2020-03-10 | 美丰工业有限公司 | Dry cleaning machine, dry cleaning system and dry cleaning method |
| CN113089275A (en) * | 2021-03-26 | 2021-07-09 | 济南汇捷智能科技有限公司 | Active safety detection method for dry cleaning machine |
Also Published As
| Publication number | Publication date |
|---|---|
| KR910008216A (en) | 1991-05-30 |
| EP0422603A1 (en) | 1991-04-17 |
| KR950003374B1 (en) | 1995-04-12 |
| CN1022939C (en) | 1993-12-01 |
| JPH0649117B2 (en) | 1994-06-29 |
| JPH03126489A (en) | 1991-05-29 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |