CN101644007A - Process and device for decoloring waste and old terylene fabric - Google Patents
Process and device for decoloring waste and old terylene fabric Download PDFInfo
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- CN101644007A CN101644007A CN200910069491A CN200910069491A CN101644007A CN 101644007 A CN101644007 A CN 101644007A CN 200910069491 A CN200910069491 A CN 200910069491A CN 200910069491 A CN200910069491 A CN 200910069491A CN 101644007 A CN101644007 A CN 101644007A
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- platen
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Abstract
The invention discloses a process and a device for decoloring erylene fabric. The invention aims to provide a process and a device capable of damaging or dissolving terylene dye, decoloring terylene fabrics in different colors into white or grey white and having simple process and low cost. The method for decoloring the terylene fabric comprises the following steps: heating decolourant; vaporizingthe decolourant; leading a vaporized decolourant gas to be in full contact with the terylene fabric and damaging or dissolving the terylene dye by the decolourant gas, wherein the decolourant is a chemical substance with an -OH group at one end and small than and equal to 10 of carbon atoms; and separating the decolored terylene fabric from the damaged or dissolved terylene dye to obtain the white or grey white terylene fabric. The decoloring process has simple process and low cost, is suitable for mass production, is convenient for recycling waste and old terylene fabric pieces, lightens thelabor intensity of workers and improves the working efficiency.
Description
Technical field
The present invention relates to a kind of discoloration method and decolouring device of waste and old terylene cloth.
Background technology
Terylene is the highest kind of a kind of output in synthetic fiber, and it has solved the demand of modern humans for fabric greatly.The waste and old terylene that produces when terylene is processed into article also is a kind of most valuable available goods and materials, and people need rationally utilize waste and old terylene, and this had both improved environment, turns waste into wealth again, and it is the useful act of implementing sustainable development that waste and old terylene is carried out deep processing.
The waste and old terylene color is very chaotic, the waste and old terylene recycle value height of light colour, and the dark colour recycle value is low.Because dye polyester is very stable decentralized dyestuff, it all is very difficult destroying or the dye polyester stripping is separated dye polyester.Therefore, generally be that the cloth of telling dark colour and light colour is broken with the broken hand-sorted of carrying out of versicolor waste and old terylene cloth in the industry at present, this process wasting manpower and material resources, very thin even letter sorting can not be got, just roughly with the broken classification of different colours cloth.The reductant of the employing aqueous solution is also arranged to the broken method of stripping of woven dacron, but the cost height is unsuitable for large-scale production.
Summary of the invention
The present invention is in order to overcome weak point of the prior art, and providing a kind of can destroy or stripping dye polyester, makes the waste and old terylene cloth of different colours become white or canescence, and technology is simple, the discoloration method that cost is low.
Another object of the present invention provides decolouring device a kind of simple in structure, easy to use.
The present invention is achieved through the following technical solutions:
A kind of discoloration method of waste and old terylene cloth is characterized in that, comprises the steps:
(1) heating decolorizer makes the decolorizer vaporization, and the decolorizer gas after the vaporization fully contacts with woven dacron, and decolorizer gas makes the destroyed or stripping of dye polyester; Described decolorizer is that an end has-chemical substance of OH base and amount of carbon atom≤10.
(2) woven dacron after will decolouring separates with the dye polyester of destroyed or stripping, obtains white or linen woven dacron.Wherein, the dye polyester separation method of the woven dacron after the decolouring and destroyed or stripping is extruding or centrifugal.
Wherein decolorizer is preferably the alcohols with 4-10 carbon, as octanol, butanols etc.The heating-up temperature of decolorizer is more than 120 ℃.
Because disperse dyes are very stable, the present invention vaporizes decolorizer, and decolorizer after the vaporization and woven dacron heat exchange when becoming liquid extract dyestuff, and woven dacron is decoloured.By the method for distillation dyestuff and decolorizer are separated again.
The employed decolouring device of a kind of discoloration method of above-mentioned waste and old terylene cloth, it is characterized in that, comprise reactor, described reactor is provided with material import and export, be provided with heater in the reactor bottom, the bottom of described reactor is provided with the liquid material outlet, is provided with down pallet in the described reactor, and described pallet down is provided with a plurality of through holes.Described material import and export is provided with seal cover.
Be provided with the liftable platen of going up in the described reactor, described go up platen be provided with reactor on the corresponding through hole of material import and export.
The described platen of going up is connected with lift drive mechanism, at least three last platen elevating screws that described last platen lift drive mechanism comprises platen lifting drive motors and is installed in the reactor and is threaded with last platen, be provided with the leading screw via hole with the corresponding position of last platen elevating screw on the pallet down, last platen elevating screw passes the leading screw via hole and is connected with last platen lifting drive motors by transmission mechanism, and a plurality of platen elevating screws of going up evenly distribute.
Described pallet down is connected with following pallet lift drive mechanism, described following pallet lift drive mechanism comprises following pallet lifting drive motors and is installed at least two following pallet elevating screws that reactor is interior and be connected with subiculum valve snail line, be provided with the leading screw via hole in the corresponding position of pallet elevating screw, last platen up and down, following pallet elevating screw passes the leading screw via hole and is connected with following pallet lifting drive motors by transmission mechanism, and a plurality of pallet elevating screws down evenly distribute.
The two ends of last platen elevating screw and following pallet elevating screw are respectively optical axis, the optical axis part of platen elevating screw upper end is connected with last platen lifting drive motors by transmission mechanism respectively on each, the optical axis part of pallet elevating screw upper end is connected with following pallet lifting drive motors by transmission mechanism respectively under each, the optical axis of platen elevating screw lower end part is connected with the axle sleeve that is fixed on the reactor bottom respectively on each, and the optical axis of pallet elevating screw lower end part is connected with the axle sleeve that is fixed on the reactor bottom respectively under each; Seal by sealing axle sleeve respectively between the optical axis part of platen elevating screw upper end and the reactor on each, seal by sealing axle sleeve respectively between the optical axis part of pallet elevating screw upper end and the reactor under each.
The present invention has following technique effect:
1. discoloration method of the present invention can be by woven dacron and decolouring the contacting of material, and, makes the destroyed or stripping of dyestuff in the woven dacron of different colours under certain condition, woven dacron becomes white or canescence, discoloration method technology of the present invention is simple, and cost is low, is suitable for large-scale production.
2. discoloration method of the present invention has made things convenient for the broken utilization again of waste and old terylene cloth, and, alleviated working strength of workers, improved operating efficiency.
3. can recycling after the liquid substance process that has dyestuff that produces in the discoloration method of the present invention is separated.
4. decolouring apparatus structure of the present invention is simple, easy to use.
Description of drawings
Fig. 1 is woven dacron decolouring schematic representation of apparatus of the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments to the detailed description of the invention.
The discoloration method of woven dacron of the present invention comprises the steps:
(1) about heating decolorizer octanol to 185 ℃, make the octanol vaporization, the octanol gas after the vaporization fully contacts with woven dacron, makes the destroyed or stripping of dye polyester.
(2) woven dacron after will decolouring uses the method for extruding to separate with the dye polyester of destroyed or stripping, obtains white or linen woven dacron.
The separation method of the dye polyester of the woven dacron after the decolouring and destroyed or stripping can adopt extruding or centrifugation method.The isolated octanol that has dyestuff utilizes after can separating purification again.Separating the method for purifying is separated, adsorbing separation etc.
The decolouring schematic representation of apparatus that the discoloration method of woven dacron of the present invention uses comprises reactor 15 as shown in Figure 1, and reactor 15 is provided with material import and export 6, is provided with heater 20 in the reactor bottom, can adopt electrical heating or gas mode of heating.The bottom of described reactor is provided with liquid material outlet 17, is provided with down pallet 12 in the reactor, and following pallet is provided with a plurality of through holes 11.
For the woven dacron compacting in the reactor of will packing into, and the extruding between the dyestuff of the woven dacron after being convenient to decolour and destroyed or stripping separates, in reactor, be provided with liftable on platen 13, last platen 13 be provided with reactor on the corresponding through hole 14 of material import and export.
The up-down mode of last platen can be for hydraulic lifting, cylinder drive lifting, leading screw drives lifting etc.
In order to prevent the influence of chemical substance, adopt leading screw to drive up-down mode in the present embodiment to hydraulic system or pneumatic system.To go up platen is connected with lift drive mechanism, at least three last platen elevating screws 8 that described last platen lift drive mechanism comprises platen lifting drive motors 10 and is installed in the reactor and is threaded with last platen 13, be provided with leading screw via hole 19 with the corresponding position of last platen elevating screw on the pallet down, last platen elevating screw 8 passes leading screw via hole 19 and is connected with last platen lifting drive motors 10 by transmission mechanism 9, and a plurality of platen elevating screws of going up evenly distribute.
For the ease of filling woven dacron material, described pallet down is connected with following pallet lift drive mechanism, described following pallet lift drive mechanism comprises following pallet lifting drive motors 1 and is installed in the reactor and at least two following pallet elevating screws 3 that are threaded with following pallet 12, be provided with leading screw via hole 21 in the corresponding position of pallet elevating screw, last platen up and down, following pallet elevating screw 3 passes leading screw via hole 21 and is connected with following pallet lifting drive motors 1 by transmission mechanism 2, and a plurality of pallet elevating screws down evenly distribute.
For simplified structure, the two ends of last platen elevating screw and following pallet elevating screw are respectively optical axis, the optical axis part of platen elevating screw upper end is connected with last platen lifting drive motors 10 by transmission mechanism 9 respectively on each, the optical axis part of pallet elevating screw upper end is connected with following pallet lifting drive motors 1 by transmission mechanism 2 respectively under each, the optical axis of platen elevating screw lower end part is connected with the axle sleeve 18 that is fixed on the reactor bottom respectively on each, and the optical axis of pallet elevating screw lower end part is connected with the axle sleeve 16 that is fixed on the reactor bottom respectively under each.Seal by sealing axle sleeve 7 respectively between the optical axis part of platen elevating screw upper end and the reactor on each, seal by sealing axle sleeve 4 respectively between the optical axis part of pallet elevating screw upper end and the reactor under each.
In order to reach sealing effectiveness, material import and export is provided with seal cover 5.
During use, will go up platen earlier and be raised to the still top, and will play pallet to move on to the latter half of reactor.Octanol is packed in the reactor, and woven dacron is packed on the following pallet in the reactor by the through hole on material import and export and the last platen.In the process of dress still, platen carries out compacting to the woven dacron on the following pallet in the lifting repeatedly.After filling still, start the interior octanol of heater heating reactor of reactor bottom.When being heated to more than 180 ℃, octanol begins vaporization, and octanol gas fully contacts with woven dacron on the following pallet by the through hole on the following pallet.Octanol gas is met cloth and is cooled to high-temp liquid, and high-temp liquid is with at the bottom of the dyestuff stripping in the woven dacron and being back to still.Octanol gas constantly rises, and the liquid that has dyestuff of stripping constantly is back at the bottom of the still, forms a continuous leaching process.In the whole process, the color of woven dacron from down and on shoal gradually, finally become white or canescence.Then, platen down pushes down the woven dacron on the pallet in the startup, with at the bottom of remaining in chemical substance in the woven dacron and extruding and be back to still.Woven dacron after will decolouring again shifts out reactor.Liquid at the bottom of the still shifts out outside the still by the liquid material outlet of bottom, separates purification by the method for distillation, and the chemical substance after the separation can be used repeatedly.
Claims (9)
1, a kind of discoloration method of waste and old terylene cloth is characterized in that, comprises the steps:
(1) heating decolorizer makes the decolorizer vaporization, and the decolorizer gas after the vaporization contacts with woven dacron, and decolorizer gas makes the destroyed or stripping of dye polyester; Described decolorizer is that an end has-chemical substance of OH base and amount of carbon atom≤10;
(2) woven dacron after will decolouring separates with the dye polyester of destroyed or stripping, obtains white or linen woven dacron.
2, the discoloration method of waste and old terylene cloth according to claim 1 is characterized in that, described decolorizer is the alcohols with 4-10 carbon, and heating-up temperature is more than 120 ℃.
3, the discoloration method of waste and old terylene cloth according to claim 1 and 2 is characterized in that, the separation method of the dye polyester of the woven dacron after the decolouring and destroyed or stripping is extruding or centrifugal.
4, the employed decolouring device of the discoloration method of the described waste and old terylene cloth of a kind of claim 1, it is characterized in that, comprise reactor, described reactor is provided with material import and export, be provided with heater in the reactor bottom, the bottom of described reactor is provided with the liquid material outlet, is provided with down pallet in the described reactor, and described pallet down is provided with a plurality of through holes.
5, decolouring device according to claim 4 is characterized in that, is provided with the liftable platen of going up in the described reactor, described go up platen be provided with reactor on the corresponding through hole of material import and export.
6, decolouring device according to claim 5, it is characterized in that, the described platen of going up is connected with lift drive mechanism, at least three last platen elevating screws that described last platen lift drive mechanism comprises platen lifting drive motors and is installed in the reactor and is threaded with last platen, be provided with the leading screw via hole with the corresponding position of last platen elevating screw on the pallet down, last platen elevating screw passes the leading screw via hole and is connected with last platen lifting drive motors by transmission mechanism, and a plurality of platen elevating screws of going up evenly distribute.
7, decolouring device according to claim 6, it is characterized in that, described pallet down is connected with following pallet lift drive mechanism, described following pallet lift drive mechanism comprises following pallet lifting drive motors and is installed at least two following pallet elevating screws that reactor is interior and be connected with subiculum valve snail line, be provided with the leading screw via hole in the corresponding position of pallet elevating screw, last platen up and down, following pallet elevating screw passes the leading screw via hole and is connected with following pallet lifting drive motors by transmission mechanism, and a plurality of pallet elevating screws down evenly distribute.
8, decolouring device according to claim 7, it is characterized in that, the two ends of last platen elevating screw and following pallet elevating screw are respectively optical axis, the optical axis part of platen elevating screw upper end is connected with last platen lifting drive motors by transmission mechanism respectively on each, the optical axis part of pallet elevating screw upper end is connected with following pallet lifting drive motors by transmission mechanism respectively under each, the optical axis of platen elevating screw lower end part is connected with the axle sleeve that is fixed on the reactor bottom respectively on each, and the optical axis of pallet elevating screw lower end part is connected with the axle sleeve that is fixed on the reactor bottom respectively under each; Seal by sealing axle sleeve respectively between the optical axis part of platen elevating screw upper end and the reactor on each, seal by sealing axle sleeve respectively between the optical axis part of pallet elevating screw upper end and the reactor under each.
9, decolouring device according to claim 8 is characterized in that, described material import and export is provided with seal cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910069491A CN101644007A (en) | 2009-06-30 | 2009-06-30 | Process and device for decoloring waste and old terylene fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910069491A CN101644007A (en) | 2009-06-30 | 2009-06-30 | Process and device for decoloring waste and old terylene fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101644007A true CN101644007A (en) | 2010-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910069491A Pending CN101644007A (en) | 2009-06-30 | 2009-06-30 | Process and device for decoloring waste and old terylene fabric |
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| CN (1) | CN101644007A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603194A (en) * | 2013-11-28 | 2014-02-26 | 太原理工大学 | Stripping treatment method for cotton-polyester blended fabric |
| CN104420191A (en) * | 2013-09-04 | 2015-03-18 | 远东新世纪股份有限公司 | Method for decolorizing dye-colored polyester fibers |
| CN107587362A (en) * | 2016-07-15 | 2018-01-16 | 浙江绿宇环保股份有限公司 | It is a kind of to realize that containing for solvent circulation washs waste textile decoloration process |
| CN108951233A (en) * | 2018-05-29 | 2018-12-07 | 武汉纺织大学 | A kind of discoloration method of colored terylene fabric |
| CN110539420A (en) * | 2019-08-08 | 2019-12-06 | 中塑联新材料科技湖北有限公司 | Method for preparing spinning fiber raw material by polyester waste spinning microwave heating decoloration aggregates |
| JP2020133089A (en) * | 2019-02-22 | 2020-08-31 | 南亞塑膠工業股▲分▼有限公司 | Method for decolorization of dyed polyester fiber |
| WO2022032436A1 (en) * | 2020-08-10 | 2022-02-17 | 香港纺织及成衣研发中心有限公司 | Method and system for improving wearability of textile material and/or decoloring textile material |
| WO2022178704A1 (en) * | 2021-02-24 | 2022-09-01 | The Hong Kong Research Institute Of Textiles And Apparel Limited | Method for decolorizing textiles |
-
2009
- 2009-06-30 CN CN200910069491A patent/CN101644007A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104420191A (en) * | 2013-09-04 | 2015-03-18 | 远东新世纪股份有限公司 | Method for decolorizing dye-colored polyester fibers |
| CN103603194A (en) * | 2013-11-28 | 2014-02-26 | 太原理工大学 | Stripping treatment method for cotton-polyester blended fabric |
| CN107587362A (en) * | 2016-07-15 | 2018-01-16 | 浙江绿宇环保股份有限公司 | It is a kind of to realize that containing for solvent circulation washs waste textile decoloration process |
| CN108951233A (en) * | 2018-05-29 | 2018-12-07 | 武汉纺织大学 | A kind of discoloration method of colored terylene fabric |
| JP2020133089A (en) * | 2019-02-22 | 2020-08-31 | 南亞塑膠工業股▲分▼有限公司 | Method for decolorization of dyed polyester fiber |
| CN110539420A (en) * | 2019-08-08 | 2019-12-06 | 中塑联新材料科技湖北有限公司 | Method for preparing spinning fiber raw material by polyester waste spinning microwave heating decoloration aggregates |
| WO2022032436A1 (en) * | 2020-08-10 | 2022-02-17 | 香港纺织及成衣研发中心有限公司 | Method and system for improving wearability of textile material and/or decoloring textile material |
| WO2022178704A1 (en) * | 2021-02-24 | 2022-09-01 | The Hong Kong Research Institute Of Textiles And Apparel Limited | Method for decolorizing textiles |
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Open date: 20100210 |