CN102071509B - Regeneration technique for jean cotton cloth - Google Patents
Regeneration technique for jean cotton cloth Download PDFInfo
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- CN102071509B CN102071509B CN201010598089A CN201010598089A CN102071509B CN 102071509 B CN102071509 B CN 102071509B CN 201010598089 A CN201010598089 A CN 201010598089A CN 201010598089 A CN201010598089 A CN 201010598089A CN 102071509 B CN102071509 B CN 102071509B
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- cotton
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- water
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- 239000004744 fabric Substances 0.000 title claims abstract description 77
- 229920000742 Cotton Polymers 0.000 title claims abstract description 44
- 230000008929 regeneration Effects 0.000 title claims abstract description 29
- 238000011069 regeneration method Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 230000008569 process Effects 0.000 claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 10
- 239000003513 alkali Substances 0.000 claims abstract description 8
- 238000007664 blowing Methods 0.000 claims abstract description 7
- 238000009987 spinning Methods 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 238000002791 soaking Methods 0.000 claims abstract description 4
- 239000002699 waste material Substances 0.000 claims description 34
- 238000005516 engineering process Methods 0.000 claims description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 13
- 239000001301 oxygen Substances 0.000 claims description 13
- 229910052760 oxygen Inorganic materials 0.000 claims description 13
- COHYTHOBJLSHDF-UHFFFAOYSA-N Indigo Chemical compound N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 6
- 230000001172 regenerating effect Effects 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 3
- 238000007654 immersion Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000000704 physical effect Effects 0.000 abstract description 9
- 238000009941 weaving Methods 0.000 abstract description 8
- 238000001035 drying Methods 0.000 abstract description 4
- 238000009990 desizing Methods 0.000 abstract 2
- 238000007599 discharging Methods 0.000 abstract 2
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 238000009960 carding Methods 0.000 abstract 1
- 238000005520 cutting process Methods 0.000 abstract 1
- 238000005562 fading Methods 0.000 description 11
- 239000003795 chemical substances by application Substances 0.000 description 9
- 239000002994 raw material Substances 0.000 description 9
- 239000000049 pigment Substances 0.000 description 8
- 230000007613 environmental effect Effects 0.000 description 6
- 239000003086 colorant Substances 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 239000000975 dye Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 150000002191 fatty alcohols Chemical class 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000003317 industrial substance Substances 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 239000001055 blue pigment Substances 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/66—Disintegrating fibre-containing textile articles to obtain fibres for re-use
Landscapes
- Woven Fabrics (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The invention discloses a regeneration technique for jean cotton cloth, which is used for recovering leftover bits and pieces of jean. The regeneration technique for the jean cotton cloth comprises the following steps of: removing impurities from the leftover bits and pieces of jean and cutting the leftover bits and pieces of jean into pieces; desizing the pieces, namely placing the pieces in warm water with the temperature of 60 DEG C, adding alkali oil and desizing powder into the water for soaking the pieces for 10 minutes, and discharging the water soaking the pieces; repeating the step for one time; dewatering, namely discharging water from the pieces; drying the pieces, namely drying the pieces in an environment with the temperature of 100 DEG C; loosening the pieces; and after extracting the cotton material from the pieces, blowing, carding, drawing, spinning and weaving the cotton material to obtain the regenerated jean. In the process of recovering the regenerated cloth, the utilization of a chemical additive is avoided as much as possible, so that the environment is protected; the physical properties of the cotton material, such as toughness, strength and the like, are kept; the regenerated woven cloth can be used for manufacturing the products of the same grade as the product manufactured from the original cloth material; the utilization rate of the cloth is improved; and the pollution to the environment is reduced at the same time.
Description
Technical field
The present invention relates to a kind of cloth regeneration technology, relate in particular to a kind of cowboy's cotton regeneration technology.
Background technology
Cowboy's cotton reclaiming field especially in denim fabric reclaiming field; Generally need be with the cloth destarch of reclaiming, fade; Carry out operations such as shredding, blowing, comb and parallel cotton fibers prior to spinning, drafting, spinning then and weave again and obtain denim, make resource be able to regeneration.Present regeneration technology is used a large amount of chemical addition agents usually in destarch, the process of fading, and realizes coming off of slurry through chemical addition agent, makes indigo-blue pigment come off through chemical substances such as cleaning agent, bleaching powder, potassium metal spray powder, realizes fading.But use chemical addition agent that cloth itself is produced the corrosion damage effect, reduced the toughness of yarn in the cloth, make that the yarn strength after reclaiming descends, the length of yarn of recovery is shorter, and the cloth of this reclaiming can only be used to produce low-grade product.The chemical addition agent that uses also can cause environmental pollution along with waste water flows out, but also needs big water gaging to clean, and has both wasted water and the energy, loses time again and chemical substance.
Summary of the invention
Not enough to prior art, the technical problem that the present invention will solve provides cowboy's cotton regeneration technology that a kind of environmental protection does not damage cloth.
In order to overcome the prior art deficiency; The technical scheme that the present invention adopts is: a kind of cowboy's cotton regeneration technology; Be used to reclaim the denim leftover pieces; Said cowboy's cotton regeneration technology may further comprise the steps: A, remove the impurity such as label paper in the denim leftover pieces, and the denim leftover pieces are cut into cloth waste; B, the cloth waste material is carried out destarch, it is that 60 ℃ warm water and weight is that 7/1000ths alkali oil and the weight of water is one of the percentage of water destarch powder that the cloth waste material is placed temperature, soaks 10 minutes, then the water of discharge immersion cloth waste material; C, repetition B step are once; D, dewater, use squeezer that the extruding of the moisture in the cloth waste material is discharged; E, oven dry are inserted the cloth waste material after dewatering in 100 ℃ the environment and are dried; F, cowboy's cloth waste material is carried out shredding; Carry out blowing, comb and parallel cotton fibers prior to spinning, drafting behind the cotton material of extraction, spin, weave cotton cloth, obtain the denim of regenerating.
Improvement as such scheme; The step of fading below between step C and step D, increasing: use anhydrous rinsing maching from air, to extract the mixture that oxygen changes into oxygen separation through plasma technology active oxygen and ozone then; The mixture of active oxygen and ozone is full of the container that the cloth waste material is housed; Continue to the indigo-blue of cloth waste material and come off fade; Use clear water soaking and washing cowboy cloth waste material.
The invention has the beneficial effects as follows: carry out destarch through hot water; Reduce the use of chemical addition agent; Help environmental protection and kept the physical properties such as toughness, intensity of cotton material, make the cloth of regeneration weaving can be used for production, improved the utilization rate of cloth with grade.Can also not establish the step of fading in this technology, further guarantee the physical property of regeneration cloth, can keep primary colors regeneration cloth simultaneously, reduce the use of coloring pigment.The cotton material regeneration yarn that uses primary colors to reclaim carries out the denim weaving as weft yarn as bottom; Its color does not influence the integral color of cloth, and the yarn of will regenerating does not need the labor dyestuff to dye as warp thread; Neither produce the consumption that the pigment discarded object also reduces pigment, help environmental protection.Removal process is saved industrial chemicals more than 85%, and using water wisely is more than 50%, thereby the step of also practicing thrift removal process saves time.
The specific embodiment
Specifically describe in the face of embodiment of the present invention down.
A kind of cowboy's cotton of the present invention regeneration technology is used to reclaim the denim leftover pieces, and said cowboy's cotton regeneration technology may further comprise the steps:
Label paper and other impurity in A, the removal denim leftover pieces are the non-cotton material removal in the leftover pieces with non-cowboy's material, guarantee that the denim fabric that reclaims is the same material of raw material, reclaim and obtain single material; The denim leftover pieces are cut into cloth waste; Specification is in 10cm * 15cm; So that satisfy the requirement of equipment in the operations such as follow-up shredding, guarantee the fibre length of the yarn of recovery simultaneously, obtain the reclaimed materials of fibre length about 10 ~ 28mm; Thereby satisfy the requirement of weaving high-quality cloth, to such an extent as to the cloth that obtains can be used for the purposes same with original material.
B, the cloth waste material is carried out destarch, it is 60 ℃ warm water that the cloth waste material is placed temperature, makes all cloth waste materials to be soaked in fully in the water; 7/1000ths the alkali oil that adds weight and be water and weight are one of the percentage of water destarch powder, soak 10 fens clock times, will soak the water discharge of cloth waste material then.Immersion process preferably can be kept the temperature of water.The composition of alkali oil is a polymer of fatty alcohol polyethenoxy ether class, i.e. Fatty alcohol ethoxylates; The destarch powder is protein, i.e. Protein.Add alkali oil and destarch powder and can make the softening decomposition of the slurry material that is attached to the leftover pieces cloth, can protect the cotton material simultaneously, prevent to starch material and when spinning, accumulate in the rotor, under the effect of hot water, make the slurry material be more prone to decomposition.The weight ratio of destarch powder and water is 1:100.Alkali oil is that chemical reaction does not take place with the destarch powder in usual conditions each other, is dissolved in can playing a role separately behind the hot water and keeping original chemical property, makes destarch smooth.This destarch process mainly relies on the hot water effect, under the booster action of destarch powder and alkali oil, makes the slurry material soften and decomposes.
C, repeat the B step once, further destarch makes destarch more thorough.
D, dewater, use squeezer that the extruding of the moisture in the cloth waste material is discharged, discharge 90% appended moisture in the cloth waste material, energy and time are saved in convenient follow-up oven dry.This step also can use hydro-extracting cage to dewater.
E, oven dry are inserted the cloth waste material after dewatering in 100 ℃ the environment and are dried, to guarantee that the drying course material is not lighted, and again can be fast with drying materials.
F, cowboy's cloth waste material is carried out shredding, the cloth waste material is reduced to cotton material so that follow-uply weave cotton cloth again.Carry out blowing, comb and parallel cotton fibers prior to spinning, drafting behind the cotton material of extraction, spin, weave cotton cloth, obtain the denim of regenerating.This step mainly reclaims through shredding, blowing process and obtains cotton material, realizes the weaving regeneration of denim then according to common textile technology process.The denim that obtains does not receive injuries such as chemical attack in removal process, thereby guarantees to reclaim the equal physical property that the cloth that obtains has the cowboy's leftover pieces before reclaiming, thereby can be used for using as original material.Extract and to carry out can adding before the blowing 10%～90% raw cotton behind the cotton material and mix and obtain mixing cotton material, this process can be referred to as mixed cotton.Mixed cotton can further guarantee the to regenerate raw materials quality of denim compensates reclaiming the loss of cotton material material performance.
Carry out destarch through hot water; Reduce the use of chemical addition agent, reduce water consumption helps environmental protection and has kept reclaiming the physical properties such as toughness, intensity of cotton cloth; Make the cloth of regeneration weaving can be used for production, improved the utilization rate of cloth with grade.Can also not establish the step of fading in this technology, further guarantee the physical property of regeneration cloth, can keep primary colors regeneration cloth simultaneously, reduce the use of coloring pigment.The cotton material regeneration yarn that uses primary colors to reclaim carries out the denim weaving as warp thread as bottom, and its color does not influence the integral color of cloth; The yarn of will regenerating is done complementary stain just can be used as weft yarn, does not need the labor dyestuff to dye, neither can be when regenerative process produces the pigment discarded object and also reduces the later stage complementary stain consumption of pigment, help environmental protection.Removal process is saved industrial chemicals more than 85%, and using water wisely is more than 50%, thereby the step of also practicing thrift removal process saves time.
Therefore make the remaining leftover pieces of denim use can 100% recycle; And the material and the original cloth that reclaim weaving again have equal physical property; Thereby can use as original material, utilize, not waste any leftover pieces thereby make the original cloth of process obtain 100%; Improve the utilization ratio of initial material, saved Material Cost.
Reclaim the leftover pieces process and collect respectively to the different raw materials source, regenerate respectively, the denim that reclaims leftover pieces regeneration is used for the production of same cowboy's product, guarantees the uniformity of same cowboy's products material, avoids sneaking into raw material of different nature.Thereby can reclaim respectively at the leftover pieces that manufacturing process produces to the raw material of each cowboy's product, be used for cowboy's production of same kind after the regeneration, guarantee the uniformity of cowboy's product material.Other denim raw material reclaimings in the lump beyond the cotton material obtain and the consistent cloth of former cowboy's fabric properties.
Raw material leftover pieces to different product reclaim, and can avoid reclaimed materials chaotic and mixed and disorderly, need not to fade fully and also can carry out regeneration, and the recovery leftover pieces of other raw materials that mix just need fade fully and just can use.Fading fully then need consume bigger chemical agent, has both damaged the physical property of raw material itself, not environmental protection again, and influence ecological environment and production operation environment influence production operation personnel's health.
More preferably; The step of promptly below increasing between step C and the step D, fading before after the destarch step, dewatering: use anhydrous rinsing maching with oxygen and nitrogen separation; From air, extract the mixture that oxygen changes into oxygen separation through plasma technology active oxygen and ozone then; The mixture of active oxygen and ozone is full of the container that the cloth waste material is housed; Continue to come off through the indigo-blue of cloth waste material behind the certain hour, fade, this process of fading promptly indigo-blue (pigment) can be referred to as not have water washing with the cloth separating process.The process duration that fades of no water washing is 10～30 minutes, looks required fading extent and decides.After accomplishing no water washing cowboy's cloth waste material is positioned over oxidation in the air, can pigment be returned.Do not use chemical addition agent to the processing of fading of cowboy's cotton, both reached the effect of fading, the pollution that can avoid chemical addition agent that environment is produced again; Can also avoid the destruction of chemical addition agent to the cotton material; Make the cloth of regeneration gained have the physical property of original cloth, simultaneously further reduce water consumption 67% saves time more than 55%; Thereby can be used in production with the identical class of original cloth; Improve the use value of regeneration cloth, improved the utilization rate of original cloth, reduced the loss of clothing leftover pieces.
The above disclosed the preferred embodiments of the present invention that are merely can not limit the present invention's interest field certainly with this, so according to the equivalent variations that claim of the present invention is done, still belong to the scope that the present invention is contained.
Claims (1)
1. cowboy's cotton regeneration technology is used to reclaim the denim leftover pieces, it is characterized in that, said cowboy's cotton regeneration technology may further comprise the steps:
A, remove the impurity in the denim leftover pieces, and the denim leftover pieces are cut into cloth waste, specification is in 10cm * 15cm;
B, the cloth waste material is carried out destarch, with the cloth waste material place temperature be 60 ℃ warm water to add weight be that 7/1000ths alkali oil and the weight of water is one of the percentage of water destarch powder, soaks 10 fens clock times, then the water of discharge immersion cloth waste material;
C, repetition B step are once;
D, fade; Use anhydrous rinsing maching from air, to extract the mixture that oxygen changes into oxygen separation through plasma technology active oxygen and ozone then; The mixture of active oxygen and ozone is full of the container that the cloth waste material is housed; Continue to the indigo-blue of cloth waste material and come off, fade, the process duration that fades are 10～30 minutes; Use clear water soaking and washing cowboy cloth waste material;
E, dewater, use squeezer that the extruding of the moisture in the cloth waste material is discharged;
F, oven dry are inserted the cloth waste material after dewatering in 100 ℃ the environment and are dried;
G, cowboy's cloth waste material is carried out shredding; Carry out blowing, comb and parallel cotton fibers prior to spinning, drafting behind the cotton material of extraction, spin, weave cotton cloth, obtain the denim of regenerating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010598089A CN102071509B (en) | 2010-12-21 | 2010-12-21 | Regeneration technique for jean cotton cloth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010598089A CN102071509B (en) | 2010-12-21 | 2010-12-21 | Regeneration technique for jean cotton cloth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102071509A CN102071509A (en) | 2011-05-25 |
| CN102071509B true CN102071509B (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010598089A Expired - Fee Related CN102071509B (en) | 2010-12-21 | 2010-12-21 | Regeneration technique for jean cotton cloth |
Country Status (1)
| Country | Link |
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| CN (1) | CN102071509B (en) |
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| CN102689868A (en) * | 2012-05-31 | 2012-09-26 | 南通斯得福纺织装饰有限公司 | Method for recycling terylene fillers |
| CN103668776B (en) * | 2013-12-18 | 2016-05-11 | 镇江立达纤维工业有限责任公司 | A kind of regenerated fiber porous sound absorbing manufacture of materials technique of low volatility |
| CN103806183A (en) * | 2014-01-29 | 2014-05-21 | 安徽工程大学 | Method for weaving fabric by using knitted leftover material |
| CN104532409B (en) * | 2014-12-18 | 2017-02-22 | 民勤县家兴节能服务有限公司 | Waste clothing recycling pre-treatment technology |
| CN104963049A (en) * | 2015-05-29 | 2015-10-07 | 安徽省含山县顺天纺织有限公司 | Blending regeneration cotton fiber serving as filling material and preparation method thereof |
| CN104975390A (en) * | 2015-05-29 | 2015-10-14 | 安徽省含山县顺天纺织有限公司 | Blended and regenerated cotton yarn with body odor and bromidrosis removing function and manufacturing method thereof |
| CN105088424B (en) * | 2015-07-08 | 2017-08-25 | 立天集团有限公司 | A kind of method that regeneration cotton is extracted in useless cloth angle |
| CN105780201B (en) * | 2016-04-29 | 2018-05-29 | 华南再生棉纱（梧州）有限公司 | The processing method of textile castoff regenerative cotton |
| CN105887249B (en) * | 2016-04-29 | 2018-03-16 | 华南再生棉纱（梧州）有限公司 | Utilize the method for waste textile production towel |
| DE102018101176A1 (en) * | 2018-01-19 | 2019-07-25 | Adler Pelzer Holding Gmbh | Process for recovering fibers |
| CN108741572A (en) * | 2018-05-03 | 2018-11-06 | 朱爱民 | A kind of textile industry fabric is used for the recycling preparation method of manicure |
| CN108977987A (en) * | 2018-08-13 | 2018-12-11 | 胡超 | The production method of jute leftover pieces and the blended yarn weaved fabric of cotton |
| CN109208155A (en) * | 2018-09-27 | 2019-01-15 | 西安工程大学 | A method of preparing scribbled and three dimensional fabric prefabricated component |
| CN110952212A (en) * | 2019-12-13 | 2020-04-03 | 侯宇昊 | A kind of denim denim fabric and its manufacturing method |
| CN112251880A (en) * | 2020-09-04 | 2021-01-22 | 江苏品创纺织科技有限公司 | Preparation method and application of waterproof and oilproof regenerated environment-friendly fabric |
| TWI871980B (en) * | 2024-06-12 | 2025-02-01 | 逢甲大學 | Remake and regeneration method of remain fiber |
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2010
- 2010-12-21 CN CN201010598089A patent/CN102071509B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2058682U (en) * | 1989-08-17 | 1990-06-27 | 浙江省德清县机械厂 | Device for opening textile waste fibres |
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| CN101918206A (en) * | 2007-03-09 | 2010-12-15 | 赛科股份有限公司 | Regenerated cotton board and its preparation method |
| CN101634105A (en) * | 2008-07-24 | 2010-01-27 | 王进仓 | Costume anhydrous decoloration washing water rearranging method and device thereof |
Also Published As
| Publication number | Publication date |
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| CN102071509A (en) | 2011-05-25 |
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Granted publication date: 20121010 |