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

Definitions

• Patent application title Method of preparing treatment liquid inside circulating system of cloth processing machine to process cloth, and cloth processing machine provided with the function Technical field
• the present invention relates to processing in a cloth processing machine. It is suitable for fabric processing machines that improve the liquid supply technology, especially for dyeing or scouring and bleaching the fabric by the circulating liquid flow. More specifically, it is locally generated in the solvent liquid flowing through the circulation system of the processing machine. Utilizing the great fluid friction (fluidfriction) as a stirring force, predetermined powders (eg, dyes, pigments, surfactants, etc.) are dispersed and dissolved to prepare the required concentration of the fabric treatment liquid.
• predetermined powders eg, dyes, pigments, surfactants, etc.
• the present invention relates to a method capable of supplying to a processing machine and subjecting the cloth to required processing, and a rational cloth processing machine having such a function.
• Background Art As is well known, dyes and pigments conventionally provided in the form of powder, or processing powders such as surfactants and scouring agents are conventionally placed in a dissolving tank separately provided near the processing machine. Disperse or disperse the processing powder (dyes, pigments, surfactants, etc.) in a solvent liquid (usually water or hot water), or disperse the processing powder in a special stirring and liquid preparation device Alternatively, the preparation step of transporting the solution prepared by dissolving and transporting it to the cloth processing machine is inevitable ⁇ .
• the present invention has been made in view of the above-mentioned problems in the conventional processing liquid preparation technology for supplying the processing liquid to the cloth processing machine, and a device for preparing the processing liquid is specially installed. Without the need to perform the process, the processing solution required in the circulating system of the fabric processing machine can be easily and quickly prepared, and the desired fabric processing can be performed as it is. It is an object of the present invention to provide an efficient method and apparatus.
• An object of the present invention is to provide a method for preparing a processing liquid in a processing liquid machine having an excellent utilization rate of a processing liquid capable of greatly suppressing the loss of the liquid, and a cloth processing machine having the function thereof.
• Another technical problem of the present invention is that the time from preparation of a treatment solution to use for fabric treatment is short, so that the properties of the treatment machine do not change and stable quality fabric treatment can be performed.
• Reasonable processing solution It is intended to provide an in-machine preparation method and a fabric processing machine having the function. Solutions for technical issues
• the method of solving the technical problem adopted by the present inventor is a powder-feeding and stirring unit in which the flow friction of the solvent disposed in the treatment liquid circulation system of the cloth processing machine is large. Or a predetermined amount of powder is charged into a solvent in a basin where a large flow friction occurs locally in the treatment liquid circulation system of the cloth processing machine, and the fluid friction of the solvent at the charged location is added.
• a cloth treatment liquid having a predetermined concentration is prepared by stirring the powder material, and the prepared treatment liquid is directly circulated in the circulation system of the processing machine so that the cloth can be processed. This is a feature of the method invention.
• the device means adopted by the present inventor to solve the above technical problem is that the flow friction of the solvent to be the processing liquid locally increases in the flow path of the processing liquid circulation system of the cloth processing machine. Or a dust injection port is provided in a basin where a large flow friction occurs locally in the treatment liquid circulation system of the cloth processing machine. A function of dispersing and dissolving the powder material injected into the inlet by the friction of the solvent to prepare a processing solution of a required concentration is added to the processing machine itself.
• This feature is a feature of the apparatus invention. There is.
• a circulating system (circulation pump, liquid flow pipe, dyeing sink, etc.) through which the processing liquid to be circulated flows is provided, and the cloth is bathed in the processing liquid flowing through this circulating system and required for the cloth.
• dyeing, scouring, bleaching, and weight-reducing processes that physically and chemically improve the appearance and properties of fabrics.
• Liquid jet dyeing machine, beam dyeing machine, jigger dyeing machine, and wince dyeing machine can perform desired textile processing by using various textile processing liquids (scouring liquid, bleaching liquid, weight-reducing liquid) instead of the dyeing liquid.
• a portion where flow friction of a solvent to be a local treatment liquid is large is particularly provided in a treatment liquid circulation system of a cloth treatment machine, and a dust is charged into the portion.
• the method of preparing the fabric treatment liquid is adopted, and by using the large flow friction inevitably generated locally in the circulation system of the cloth processing machine, the powder is injected into the basin of the large flow friction.
• the method uses a method to prepare the required fabric treatment liquid, but in any case, the fluid friction of the liquid flow is used as a stirring force to diffuse and disperse or dissolve the powder in the liquid. Common.
• the former method differs from the latter method in that a portion having particularly high flow friction is formed in the circulation system of the cloth processing machine in order to prepare a treatment liquid by dispersing or dissolving the powder in a solvent liquid. It is characterized by a high degree of freedom in selecting a place where the preparation of the processing solution can be easily performed.
• the solvent liquid rapidly flows into the circulating system of the cloth processing machine. This can be achieved by providing a powder-feeding agitation tank that generates a large amount of fluid friction, and the latter method is characterized by violent turbulence in the circulation system of a conventionally known cloth processing machine.
• a dust inlet in a basin where eddy currents, undulations, vibrations, and the like are generated and the flow friction locally increases, and the dust is injected into the dust inlet.
• turbulence, eddy currents, undulations, vibrations, and the like are generated, for example, in the vicinity of a circulating pump, inside a passage of an injection nozzle, For example, a flow region where a rapid change in flow velocity occurs, such as in front of an injection nozzle of an injection nozzle and an inflow portion of a ding sink into which a processing liquid rapidly flows from a liquid flow path.
• the above-mentioned powder is supplied to the above-mentioned powder mixing agitating tank ⁇ powder input port by directly charging the powder itself, filling the powder into a dissolvable bag and then charging the powder, or passing the powder into a water basket. It is possible to put it in the housed state.
• FIG. 1 is an explanatory diagram of a mechanism of a first embodiment of a fabric processing machine to which the present invention is applied
• FIG. 2 is an explanatory diagram of a mechanism of the second embodiment
• FIG. 3 is a third embodiment of the same
• FIG. 4 is a mechanism explanatory view showing the fourth embodiment of the present invention
• FIG. 5 is a diagram showing an example of a dosing method in which a dust is fed into a dust feeding port provided in a circulation system of the cloth processing machine of the present invention.
• FIG. 1 shows a cloth processing machine as a first embodiment configured by applying the present invention.
• the cloth W slowly and meanders in the processing liquid (dye liquid) D that stagnates in a dyeing sink (dyeingsink) 2 formed at the bottom of the processing tank 1.
• a dyeing sink dyeingsink
• the fabric W which is pulled up by the pull-up reel 3 and enters the liquid flow pipe 5 is rapidly flowed into the processing liquid D injected from the injection nozzle 6 and enters the inlet 2 a of the dicing sink 2.
• it is rubbed, squeezed, drained, and squeezed in a repeated process of moving in three directions while pulling and relaxing while sinking and swaying.
• the liquid treatment process of the cloth W is common to conventional liquid flow treatment machines.
• the circulation system of the treatment liquid D in the fabric treatment machine of the first embodiment is composed of two systems: a fabric liquid flow circulation mechanism and a sub circulation mechanism for preparing the treatment liquid.
• the former fabric liquid flow circulating mechanism is composed of a suction pipe 8 communicating with a liquid reservoir 7 formed at the bottom of the dicing sink 2 and a circulation pipe having a suction port communicating with the suction pipe 8.
• a pump 9 and a liquid feed line 10 communicated with a discharge port of the circulation pump 9;
• a filtration filter 11 connected to the liquid sending end of the liquid sending line 10,
• a multi-tube heat exchanger 12 connected to the discharge side of the filtering filter 11, and a heat exchanger
• the heating liquid feed pipe 13 communicates with the discharge side 12, and includes the injection nozzle 6, the liquid flow pipe 5, and the dicing sink 2 described above.
• the latter sub-circulation mechanism includes a bypass pipe 14 connected to the above-described liquid reservoir 7, a sub-circulation pump 15 connected to a suction port to the bypass pipe 14, and a discharge port of the sub-circulation pump 15.
• the pressure feed pipe 16 communicated with the outlet, the powder input stirring tank 17 disposed in communication with the discharge port of the pressure feed pipe 16, and the bottom of the powder input stirring tank 17 as described above.
• a liquid return line 18 also connected to the suction line 8.
• the most important technical matter in the cloth processing machine of the present embodiment lies in that the dust charging and stirring tank 17 is incorporated in the auxiliary circulation mechanism.
• the bypass pipe 14 has an electromagnetic valve 14 a
• the pressure feed pipe 16 has an electromagnetic valve 16 a
• the liquid return pipe 18 has an electromagnetic valve 18 a near the suction pipe 8.
• an electromagnetic valve 18b is also provided near the bypass line 14 in a branch line 18 'that branches off from the liquid return line 18 and communicates with the bypass line 14.
• a branch pipe 16 ′ branched in the middle of the pressure feed pipe 16 is communicated with the suction pipe 8, and connected to the check type solenoid valve 16 b.
• the liquid movement is configured to be controllable.
• an electromagnetic valve 8a disposed at the branch end of the suction pipe 8 is a discharging means that operates when discharging the processing liquid D of the above-mentioned cloth liquid flow circulating mechanism, and an electromagnetic valve 8 is connected to the suction pipe 8.
• a water supply means for arbitrarily supplying water or hot water, and a solenoid valve 14b provided at a branch end of the bypass pipe 14 is a discharge means to be operated when discharging the liquid of the sub-circulation mechanism.
• An electromagnetic lined water valve 19 attached to the pressure feed line 16 is a solvent supply means for arbitrarily supplying a solvent (in the present embodiment, water or hot water) to the powder charging and stirring tank 17.
• an electromagnetic valve 20 attached to the powder material mixing and stirring tank 17 is a pressure adjusting means for closing the closed lid 17a of the stirring tank 17 and allowing air to appropriately flow in when the pressure in the tank becomes negative. is there.
• the electromagnetic water supply valve 8b provided in the suction pipe 8 is opened to supply water as a solvent to the cloth liquid flow circulating mechanism, and the pressure feed pipe in the sub-circulation mechanism is opened.
• the electromagnetic water supply valve 19 attached to the passage 16 is opened, and water is supplied to the powder charging and stirring tank 17 until the water level reaches a predetermined level.
• the electromagnetic valves 16b, 18a and 18b shall be opened.
• the sealing lid 17a is closed, the stirring tank 17 is kept airtight, only the electromagnetic valve 18b is opened, and the auxiliary circulation pump 15 is operated.
• the powder material mixing and stirring tank 17, the branch line 18 ′ branched from the liquid return line 18 communicating with the bottom of the stirring tank 17, the sub-circulation pump 15, and the pressure feed line 16 form a circulating liquid line.
• the supplied water circulates in the circulating fluid path (17 ⁇ 18′-16) when intense fluid friction is generated in the powder charging and stirring tank 17, and is stirred by the intense fluid friction.
• the dye powder P together with the water-soluble resin sack is dispersed and dissolved in water as a solvent to form a high-concentration dye solution.
• the circulation pump 9 on the fabric liquid flow circulation mechanism side is also driven.
• the electromagnetic valve 14a of the bypass line 14 communicating with the liquid reservoir 7 of the fabric liquid circulation mechanism is opened.
• the electromagnetic valve 18 b of the branch pipe 18 ′ and opening the electromagnetic valve 18 a of the liquid return pipe 18 is eliminated.
• the fabric liquid circulation mechanism and the auxiliary circulation mechanism are communicated with each other in a liquid-exchangeable manner, and the high-concentration dye solution generated in the circulation path is diluted from the liquid reservoir ⁇ 7 in the stirring tank 17. While diluting with water, the liquid is returned to the suction line 8 from the liquid return line 18.
• the branch line 18 'Electromagnetic valve 18b and branch pipe 16' By opening the non-return type electromagnetic valve 16b and closing the electromagnetic valves 14a and 18a, the residual dye solution in the circulating fluid path (17, 18 ', 16) can be sufficiently circulated through the fabric liquid circulation mechanism. Send in.
• the electromagnetic valve 20 as the air pressure adjusting means is opened, and the electromagnetic valve 16 a of the pressure feed line 16 is closed. .
• the auxiliary circulation pump 15 When the auxiliary circulation pump 15 is stopped and the electromagnetic valve 14 a of the bypass line 14, the electromagnetic valve 18 a of the liquid return line 18, and the check type electromagnetic valve 16 b of the branch pipe 16 ′ are closed,
• the sub-circulation mechanism including the charging and stirring tank 17 is cut off from the cloth liquid flow circulation mechanism to enable independent liquid circulation, and the system is ready to prepare for preparation of the processing liquid necessary for the next cloth processing. That is, the electromagnetic valve 16a for adjusting the atmospheric pressure of the powder charging and stirring tank 17 is opened, and the electromagnetic valve 14b for discharging the liquid, which is disposed at the branch end of the bypass pipe 14, is opened, and the residual dyeing liquid up to that time is opened. While discharging, the electromagnetic water supply valve 19 attached to the pressure feed line 16 is fully opened, and the dye powder and dye solution remaining in the stirring tank 17 are washed away to clean the inside.
• the electromagnetic valve 14 b of the bypass pipe 14 was closed, and the electromagnetic water supply valve 19 was opened to open the powder charging stirring tank 17. Water is supplied until the specified water level is reached. When the water level in the stirring tank 17 reaches a predetermined level, Close the magnetic water supply valve 19 and the electromagnetic valve 16a for adjusting the air pressure, put the powder required for the preparation of the processing solution to be prepared next into the stirred tank 17, and close the sealing lid 17a. Then, the stirring tank 17 is kept airtight, the electromagnetic valve 18 b alone is opened, the sub-circulation pump 15 is operated, and the processing of the fabric W during the dyeing process is completed.
• the one shown in FIG. 2 is a fabric treatment machine T 2 of the in the second embodiment constituted by applying the present invention.
• the fabric W is the bottom of the processing tank 1
• the processing liquid D stagnant in the dicing sink 2 formed at the bottom is slowly sunk in a meandering state and swells and is crushed, and is pulled up by the lifting reel 3.
• the endless is set so that it turns in the reel box 4, passes through the liquid flow pipe 5, and returns to the dicing sink 2.
• the fabric W which is pulled up by the pull-up reel 3 and enters the liquid flow pipe 5 flows at a rapid speed into the processing liquid D jetted from the jet nozzle 6 and flows into the inlet 2a of the dicing sink 2.
• the circulation system for the treatment liquid D in the cloth treatment machine T2 of the second embodiment is also composed of two systems: a cloth liquid flow circulation mechanism and a sub circulation mechanism for preparing the treatment liquid.
• the fabric liquid flow circulating mechanism in the fabric processing machine 2 of the second embodiment also includes a suction pipe 8 communicated with a liquid reservoir 7 formed at the bottom of the dicing sink 2.
• a circulation pump 9 having a suction port connected to a suction pipe 8, a liquid supply pipe 10 connected to a discharge port of the circulation pump 9, and a liquid supply end of the liquid supply pipe 10.
• Fig. 2 it is indicated by reference numeral 8a.
• secondary circulation system of the fabric processor T 2 of the second embodiment the liquid volume in contact has been die-ring Thin click 2 identical level at the die Ngushinku second bottom and communicating tube 2 a is maintained It is composed of a dust-feeding and stirring tank 17 and a communication pipe 20 for communicating the liquid between the bottom of the powder-feeding and stirring tank 17 and the liquid feed pipe 10.
• a sealing lid 17a which can be opened and closed is disposed in the liquid agent charging and stirring tank 17 and the inside of the stirring tank 17 is airtight by closing the sealing lid 17a.
• the electromagnetic water supply valve 8b disposed in the suction pipe 8 is opened, and water is supplied as a solvent to the fabric liquid circulation mechanism. Then, the required amount of water accumulates in the diving sink 2 at the same time, and at the same time, the same level of water accumulates in the powder charging and stirring tank 17 via the communication pipe 2a.
• a predetermined amount of the dye powder P packed in a water-soluble bag is charged into the stirring tank 17 and the closed lid 1 7 Close a, and open the electromagnetic valve 21 disposed on the connecting pipe 20.
• the water in the powder agent mixing tank 17 is strongly sucked into the liquid reservoir 7 and the suction pipe 8 through the communication pipe 2 a by the suction force of the circulation pump 9, and The liquid is fed from the discharge port to the liquid feed line 10 at this time.
• the pressure in the powder charging and stirring tank 17 closed by the closed lid 17a tends to be negative, but the liquid feed line 10 since a part of the moving water that flows stirring tank 17 twice through the connecting pipe 20, the internal pressure of the processing machine T 2 are restored equilibrium.
• the water tends to flow out of the communication pipe 2 a, the water circulates from the communication pipe 20 and flows in, and the water of the ding sink 2.
• the water level and the force for maintaining the same water level inside the stirring tank 17 slightly affect each other, and complicated and intense liquid motion occurs in the stirring tank 17 to generate large flow friction. Then, the charged dye powder P is stirred with a water-soluble soak to disperse and dissolve it.
• Cloth ⁇ processing machine ⁇ 2 of the second embodiment of this is also Ri by fabric processing machine of the first embodiment can and this the structure is manufactured at low cost because of its simplicity, it is advantageous in terms of equipment costs .
• the one shown in FIG. 3 is a fabric processing machine T 3 of the third embodiment constituted by applying the present invention.
• Is fabric processor T 3 of the third embodiment is different from the fabric treatment machine T 2 of the second embodiment is the configuration of the secondary circulation system.
• the powder agent stirring tank 17 is connected to the bottom of the dicing sink 2 through a communication pipe 2a so that the liquid level is maintained at the same water level as the dicing sink 2.
• the powder turned stirring vessel 1 7 contacted by the liquid reservoir 7 and the circumfluence pipe 22 a and 22 b of the bottom of the die Ngushi tank 2 It is characterized in that an auxiliary circulation pump 23 for circulation is disposed between the circulation pipes 22a and 22b.
• the treatment liquid preparation method using the cloth processing machine T3 of the third embodiment is the same as that of the cloth processing machine ⁇ 2 of the second embodiment.
• the circulation liquid is forcedly circulated from the liquid reservoir 7 by the strong suction force of the sub-circulation pump 23 through the circulation pipes 22a and 22b to the powder material mixing tank 17. There is only a difference in the point.
• the one shown in FIG. 4 is a fabric treating machine T 4 of the fourth embodiment constituted by applying the present invention.
• a liquid flow pipe 5 having both ends communicating with the dicing sink 2 a processing liquid D is sprayed on the liquid flow pipe 5, and the processing liquid D is pressure-fed to the dicing sink 2 through the liquid flow pipe 5.
• the nozzle W includes a spray nozzle 6 that enables the fabric W placed in an endless state over the dicing sink 2, the lifting reel 3, and the liquid flow pipe 5.
• the former fabric liquid circulation mechanism is composed of a suction pipe 8 communicating with a liquid reservoir 7 formed at the bottom of the dicing sink 2, and a circulation port having a suction port communicating with the suction pipe 8.
• An electromagnetic valve 13a is provided in the heating liquid delivery pipe 13 near the injection nozzle 6.
• the suction pipe 8 is provided with an electromagnetic valve 8a for discharging liquid at the end of the branch pipe 8 ', and an electromagnetic water supply valve 8b is provided near the suction port of the circulation pump 9. .
• the latter sub-circulation mechanism is communicated with the liquid feed line 10 of the liquid flow circulation mechanism, and the downstream end thereof is communicated with the powder material charging and stirring tank 25 disposed above the dicing sink 2. It is composed of the fall water flow pipe 26 that was created.
• the powder turned agitation tank 25 in the fabric treating machine T 4 of the fourth embodiment is provided with a sealing lid 25 a of the opened and closed at the top in a standing cylindrical, and the bottom perforated plates 25 b are arranged It has a structure like a waterhole. Then, the liquid flow that has dropped onto the perforated plate 25 b is near the inflow portion 2 a of the dicing sink 2. It will flow down.
• the brewing liquid flow pipe 26 is provided with an opening / closing electromagnetic valve 26a so that the liquid flow to the powder charging and stirring tank 25 can be stopped when unnecessary.
• the above-mentioned sub-circulation mechanism is provided with a waterfall dropping liquid flow pipe 26 communicating with the liquid feeding pipe line 10 of the cloth liquid flow circulation mechanism.
• the configuration is such that the downstream end of the container is communicated with the above-mentioned waterfall-shaped powder charging and stirring tank 25.
• the electromagnetic valve 13a of the heating liquid delivery pipe 13 is closed, and the open / close electromagnetic valve 26a is opened.
• the liquid flow dispersing and dissolving the powder into the waterfall violently flows into the waterfall, causing large flow friction on the perforated plate 25b, which is equivalent to a waterhole. It is.
• the fabric liquid flow circulation mechanism by driving the circulating pump 9 by opening the electromagnetic Awasesui valve 8 b
• the fabric liquid flow circulation mechanism by driving the circulating pump 9 by opening the electromagnetic Awasesui valve 8 b
• the electromagnetic valve 13a of the heating liquid supply line 13 is closed, and the opening and closing electromagnetic valve 26a is opened, so that the water flows from the downstream end of the water supply line 26 at a rapid speed so as to fall into the waterhole.
• the incoming water stream gives a violent water hammer to the powder P, swirls and undulates, agitating the powder P by fluid friction and dispersing and dissolving it immediately. And will this, a period of time, the concentration of the circulating system overall processing solution D treatment devices T 4 is uniform and Do Ri, while the tackle fabric W into contact with the treatment liquid D, die Ngushinku 2 and the liquid As long as the repetitive circulation motion is maintained between the flow tubes 5, the target fabric treatment can be continuously performed following the preparation of the treatment liquid, which is extremely efficient.
• Another embodiment of the present invention utilizes a large flow friction inevitably and locally generated in a circulating system of a cloth processing machine as a stirring force of a powder, and a flow area in which the large flow friction is generated. It is characterized in that a required cloth treatment liquid is prepared by adding a powdery agent to the powder. That is, the cloth processing machine according to the fifth embodiment includes a processing liquid circulation system such as a processing tank, a dicing sink, a liquid flow pipe through which a cloth is conveyed at high speed, a circulation pump, and a heat exchanger.
• the basic structure is the same as that of the liquid flow processor.
• the powder material inlet is located near the suction port of the circulating pump where flow friction is inevitably locally high in the processing liquid circulation system. It is at the point where it is arranged.
• FIG. 5 shows a vertical tubing in a basin where the flow friction locally increases in the processing liquid circulation system of the cloth processing machine, that is, a liquid feed line 10 near the suction port of a circulation pump (not shown).
• a dust inlet 28 is provided.
• Reference numerals 10a to 10a denote baffles attached to the inner surface of the liquid feed pipe
• reference numeral 28a denotes a sealing lid for the powder material inlet 28.
• a processing solution required in a cloth processing machine is prepared at an appropriate concentration, and
• the treatment liquid loss accompanying the transfer and transfer of the treatment liquid which was inevitable in the conventional technology which required the treatment liquid preparation device, Processing solution due to color contamination and dissipative loss due to splashing, impure processing solution due to mixing of residue, variation in processing solution concentration due to individual differences of preparation staff, and inability to use prepared processing solution immediately It is also possible to eliminate quality control problems such as changes in the quality of products and the problems of environmental protection.
• the cloth processing machine used in the practice of the present invention is simply provided with a dust charging and stirring tank and a dust charging port in the circulation system, it is structurally simple and can be manufactured at low cost. It is very economical.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Treatment Of Fiber Materials (AREA)

Priority Applications (5)

Applications Claiming Priority (6)

Publications (1)

Family

ID=27329134

Family Applications (1)

Country Status (8)

Cited By (4)

Families Citing this family (14)

Citations (4)

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• 1996
  • 1996-02-15 TW TW085101920A patent/TW304210B/zh active
  • 1996-04-16 KR KR1019960706698A patent/KR100236620B1/ko not_active IP Right Cessation
  • 1996-04-16 WO PCT/JP1996/001037 patent/WO1997007276A1/ja active IP Right Grant
  • 1996-04-16 JP JP52557396A patent/JP3559287B2/ja not_active Expired - Fee Related
  • 1996-04-16 CN CN96190329A patent/CN1087795C/zh not_active Expired - Fee Related
  • 1996-04-16 DE DE69624675T patent/DE69624675T2/de 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/xx not_active IP Right Cessation

Patent Citations (4)

Non-Patent Citations (1)

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