CN105624800B - A kind of bio-bleaching method for degummed ramie fiber production - Google Patents
A kind of bio-bleaching method for degummed ramie fiber production Download PDFInfo
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Abstract
The present invention relates to a kind of bio-bleaching method for degummed ramie fiber production, it is used for ramie biological bleaching process after being diluted using bacillus sp.HG 116 and Bacillus sp.HG 247 zymocyte liquid, fiber crops are 1: 8~1: 30 with the solid-liquid ratio of bio-bleaching liquid, and bleached ramie is obtained through 5~30min of bio-bleaching at 40~60 DEG C of temperature.The bio-bleaching liquid that the present invention is prepared using microbial inoculum is bleached instead of traditional chemical reagent to ramie, and treatment temperature is gentleer, and caused pollution significantly reduces with energy consumption；Any chemical article need not be added, avoids its injury for ramee；Lignin is effectively removed simultaneously, and degummed ramie whiteness is greatly improved.
Description
Technical field
The invention belongs to textile fabric manufacturing field, and in particular to a kind of bio-bleaching side for degummed ramie fiber production
Method.
Background technology
In degummed ramie fiber production process, by degumming and the ramie bast fiber handled is flogged, half in bast colloid
Cellulose has largely removed with compositions such as pectin, but lignin is generally still largely retained in bastuse surface or fiber
Between gap, it is difficult to effectively degraded, so as to form coloured, the indefinite form powder on the keen-witted and capable flaxen fiber of product, extremely influence ramie
Performance of the flaxen fiber in subsequently spinning, weave cotton cloth；If clothing is made, it skin is produced prodding and itching feeling, have a strong impact on clothing
Performance and class.
It is wooden in ramie phloem by high temperature, high pressure, the Degumming Procedures of alkali white silk in traditional ramie chemical Degumming industry
Plain part is combined with alkali, is generated alkali lignin and is dissolved in degumming alkali lye.Do not had an effect with alkali and remain on bastuse
Lignin between surface or fiber gap, in following bleaching process, a large amount of bond energys present in lignin molecule are weaker
Ehter bond is aoxidized and be broken by strong oxidizer, and coloured groups (such as aromatic radical) come off, or coloured groups are directly by by Strong oxdiative
Agent oxidative decoloration, so as to eliminate influence of the lignin to degummed ramie quality.
Ren Chuanrong etc. discloses a kind of ramie fast degumming tech in publication number CN1041012A patent of invention, its
Blanching step uses the chemical bleaching liquor that effective chlorine density is 0.5~1g/L；Liu is just elementary publication number CN1130216A's
In patent of invention, a kind of biological degumming of ramie technology and equipment are disclosed, its bleaching conditions is 0.8~1.8g/L
H2O2, pH value 11 ± 0.5,80~100 DEG C of temperature；Xu Meirong discloses one in publication number CN101037808A patent of invention
The extraction and preparation method of kind ramee and application thereof and ramee, it includes blanching step twice, and respectively chlorine floats
And oxygen bleaching, chlorine drift concentration is 3~8g/L NaClO, and oxygen bleaching uses 4~6g/L H2O2, 80~100 DEG C of temperature；Zhu Hongzhe exists
In publication number CN102644195A patent of invention, disclose it is a kind of for it is fibrilia modified and with bath bleaching function additive and
Its preparation method, its blanching step use 50~120g/LNaOH and 15~35g/L H2O2React 3~7h.
The problem of existing technology the is present above mainly chemical levels in bleaching process are larger, treatment temperature
High, time length, pollutes big, high energy consumption, present environmental risks, does not meet the fundamental state policy of " environmental protection ", can not fit
Answer the requirement of sustainable development.
The content of the invention
The technical problems to be solved by the invention are：A kind of bio-bleaching side for degummed ramie fiber production is provided
Method, solves the problems such as chemical levels in existing ramie bleaching process are big, industrial water processing is difficult, environmental hazard is serious.
Technical proposal that the invention solves the above-mentioned problems is：A kind of bio-bleaching side for degummed ramie fiber production is provided
Method, comprise the following steps：
S1, bacterium solution culture：Using bacillus sp.HG-116 as strain, by actication of culture step,
Expand incubation step and obtain bacterium solution A；Using bacillus sp.HG-247 as strain, respectively by actication of culture
Step, expand incubation step acquisition bacterium solution B；Bacillus sp.HG-116 is the bacterium that a plant height produces zytase
Strain, the bacterial strain submitted to China typical culture collection center preservation on the 22nd in September in 2014, and address is in Hubei China province Wuhan
Wuhan University of city, deposit number are CCTCC No:M 2014438)；Bacillus sp.HG-247 produces for a plant height
The bacterial strain of mannase, the bacterial strain submitted to China typical culture collection center preservation on 22nd in September in 2014, and address exists
Wuhan University of Wuhan City of Hubei China province, deposit number are CCTCC No:M 2014439).Bacterium solution incubation is done in detail below
Describe in detail bright：
Ith, bacillus sp.HG-116 fungi preservation, activation and expansion culture
Fungi preservation：Bacillus sp.HG-116 strains are inoculated into by 1% inoculum concentration and fill 80mL
In the 250mL shaking flasks of No.1 culture medium, 3h is cultivated under conditions of 36 DEG C, 180r/min rotating speeds, the bacterium solution glycerine after culture
Protecting method preserves under the conditions of -20 DEG C, obtains HG-116 strain tubes；
Activation：By HG-116 strain tubes place at room temperature 3min to bacterium solution melt after, be inoculated into by 1.2% inoculum concentration
In the 1L shaking flasks for filling 250mL No.1 culture mediums, 4h is cultivated under conditions of 36 DEG C, 160r/min rotating speeds, obtains HG-116 work
Change strain.
Expand culture：Bacterial strain HG-116 after activation is inoculated into the specification equipped with No. bis- culture mediums of 30L by 3% inoculum concentration
For in 50L first class seed pot, in 36 DEG C, 120r/min rotating speeds and 2m34h is cultivated under conditions of/h throughputs.Then by one-level
The bacterium solution of seeding tank is inoculated into by 5% inoculum concentration in the secondary seed tank that the specification equipped with No. bis- culture mediums of 600L is 1t, in
37 DEG C, 70r/min rotating speeds and 7m34h is cultivated under conditions of/h throughputs.
No.1 culture medium includes：Sucrose 25g/L, peptone 6g/L, potassium dihydrogen phosphate 3g/L, bitter salt 1.5g/
L, calcium nitrate 0.7g/L, sodium chloride 1.1g/L；With water constant volume, regulation pH is 7.1.
No. two culture mediums include：Oat xylan 22g/L, ammonium sulfate 8g/L, potassium dihydrogen phosphate 4g/L, bitter salt
2g/L, calcium nitrate 0.7g/L, sodium chloride 3g/L.With water constant volume, regulation pH is 7.1.
IIth, bacillus sp.HG-247 fungi preservation, activation and expansion culture
Fungi preservation：Bacillus sp.HG-247 strains are inoculated into by 1.5% inoculum concentration and filled
In the 250mL shaking flasks of No. tri- culture mediums of 80mL, 4h is cultivated under conditions of 36 DEG C, 160r/min rotating speeds, the bacterium solution after culture is used
Glycerine protecting method preserves under the conditions of -20 DEG C, obtains HG-247 strain tubes.
Activation：By HG-247 strain tubes place at room temperature 3min to bacterium solution melt after, be inoculated into by 1.5% inoculum concentration
In the 1L shaking flasks for filling No. tri- culture mediums of 250mL, 4h is cultivated under conditions of 36 DEG C, 16r/min rotating speeds, obtains HG-247 activation
Strain.
Expand culture：HG-247 activated spawns are inoculated into the specification equipped with No. tetra- culture mediums of 30L by 3% inoculum concentration is
In 50L first class seed pot, in 36 DEG C, 120r/min rotating speeds and 2.5m35h is cultivated under conditions of/h throughput；Then by one
The bacterium solution of level seeding tank is inoculated into by 4% inoculum concentration in the secondary seed tank that the specification equipped with No. tetra- culture mediums of 600L is 1t,
In 36 DEG C, 80r/min rotating speeds and 8.5m34h is cultivated under conditions of/h throughputs；
No. three culture mediums include：Glucose 32g/L, peptone 12g/L, yeast extract 7g/L, potassium dihydrogen phosphate 4g/L, nitre
Sour calcium 0.7g/L.With water constant volume, regulation pH is 7.0.
No. four culture mediums include：Konjaku flour 35g/L, peptone 14g/L, yeast extract 7g/L, potassium dihydrogen phosphate 7g/L,
0.6g/L.With water constant volume, regulation pH is 7.1.
It is prepared by S2, bio-bleaching liquid：The bacterium solution A and bacterium solution B are mixed according to volume ratio 1: 1~3.75: 1
Bacterium solution, the mixing bacterium solution is diluted with water 3~35 times and obtains dilution mixing bacterium solution, the dilution is mixed into bacterium solution as ramie
Bio-bleaching liquid in bio-bleaching process；
S3, bio-bleaching：The bio-bleaching liquid is injected in Bellmer, the ramie after degumming and beating are handled and are drained
Fiber crops are immersed in the bio-bleaching liquid, and the ramie and the solid-liquid ratio of the bio-bleaching liquid are 1: 8~1: 30, in temperature 40
5~30min of bio-bleaching obtains bleached ramie at~60 DEG C.
In the bio-bleaching method of the present invention, in the step S3, the bio-bleaching liquid recycles 25~30 times,
The mixing bacterium solution that volume fraction is 0.5%~5% is added when recycling every time.
In the bio-bleaching method of the present invention, in the step S2, the Bellmer is bar shaped Bellmer, the bar shaped
The both ends of Bellmer be respectively into numb end and going out numb end, be provided with the bar shaped Bellmer from it is described enter numb end to it is described go out
First transmission crawler belt of numb end movement.First transmission crawler belt is immersed in bio-bleaching liquid, plays a part of drawing ramie movement,
So ramie can be put into bar shaped Bellmer from numb end is entered, pull out from going out numb end, form continuous sample introduction, go out sample process, herein
Period completes bleaching process.
In the bio-bleaching method of the present invention, the ramie it is described enter after numb end is placed into the bar shaped Bellmer,
Go out numb end described in being moved under the drive of the described first transmission crawler belt.Ramie good dispersion in such a continuous bleaching process,
Treating capacity is big, is contacted fully with bio-bleaching liquid, and automaticity is high, greatly reduces the labor intensity of worker.
In the bio-bleaching method of the present invention, the translational speed of the first transmission crawler belt is 0.1~5m/min, described
Gradually raise and higher than the wall of the bar shaped Bellmer, carry the drift in the side that first transmission crawler belt goes out numb end described in
White ramie leaves the bar shaped Bellmer and enters collection frame.Bleached ramie is held out the water surface by the first transmission crawler belt gradually raised,
Most bio-bleaching liquid on bleached ramie, which can leach, flows back to bar shaped Bellmer, reduces the loss of bio-bleaching liquid；Meanwhile
The the first transmission crawler belt gradually raised crosses the wall of bar shaped Bellmer, and bleached ramie is taken away into bar shaped Bellmer and taken off automatically
Fall, into collection frame, collected manually without worker, simply, conveniently.
The present invention bio-bleaching method in, from it is described enter numb end inject into the bar shaped Bellmer dilution mixing bacterium
Liquid, injection rate are 0.5~2m3/min.Constantly there is bleached ramie to be carried over numb end is gone out, bio-bleaching can be carried
Liquid, therefore should supplement in time.In order to prevent prolonged continuous processing, the moisture that ramie carries in itself dilutes bio-bleaching
Liquid, it can also be properly added and mix bacterium solution to increase the cell concentration in bio-bleaching liquid.
In the bio-bleaching method of the present invention, also include after the step S3：
S4, cleaning：The bleached ramie is woven into service sink with water by solid-liquid ratio 1: 20~1: 120, and immersion 3~
Take out, drain after 20min.Microbial cells and its secretion (such as protein) in bio-bleaching liquid can be adsorbed in bleaching ramie
The surface of fiber crops, cleaning step are removed to it, avoid its quality to degummed ramie from having an impact.
In the bio-bleaching method of the present invention, the service sink is bar shaped service sink, is set in the bar shaped service sink
There is the second transmission crawler belt, the bleached ramie is moved into one end of the bar shaped service sink and is fully submerged into water, second
Transmit and picked up under the transmission of crawler belt after 3~20min is moved to the other end of the bar shaped Bellmer.Bar shaped service sink with it is foregoing
Bar shaped Bellmer has similar structure, itself has certain water capacity, and bleached ramie receives the band of the second transmission crawler belt
Action is used, and is moved into from one end of bar shaped service sink, other end removal, is haveed the function that cleaning.
In the bio-bleaching method of the present invention, the bar shaped service sink includes water inlet and delivery port, from water inlet
The water of injection flows through the bar shaped service sink and flowed out from the delivery port, the water (flow) direction and the shifting of the described second transmission crawler belt
It is dynamic in opposite direction.Because bleached ramie is continuously added into the delivery port side of bar shaped service sink, the bleached ramie direction of motion and water
Stream is in opposite direction, constitutes a kind of counter-current relationship, therefore delivery port cell concentration or protein concentration are higher, then directly flows
Go out, water inlet cell concentration or protein concentration are relatively low, and lasting have clear water to be supplemented in bar shaped service sink.Such a design can be with
Reduce water consumption and make cleaning more thorough.
In the bio-bleaching method of the present invention, the water-carrying capacity of the water inlet is 0.5~5m3/min。
Implement the present invention, have the advantages that：The bio-bleaching liquid prepared using microbial inoculum replaces traditional
Work reagent is bleached to ramie, and treatment temperature is gentleer, and caused pollution is significantly reduced with energy consumption, while lignin is had
Effect removes, and degummed ramie whiteness is greatly improved.Degummed ramie its delignification rate of the present invention, degummed ramie residual gum content, whiteness,
Bleaching process water consumption and COD and conventional method and standard GB/T/T 20793-2006 degummed ramie fiber primes indexs
Contrast is as shown in table 1：
The bleaching results of table 1
1Refer to and often produce water consumption and COD caused by 1t degummed ramie fibers.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that specific implementation described herein is not used to limit only to explain the present invention
The present invention.
Embodiment 1
Bacterium solution A and bacterium solution B is mixed according to volume ratio 1: 1 and obtains mixing bacterium solution, mixing bacterium solution is diluted with water into 3 times obtains
Dilution mixes bacterium solution, and dilution is mixed into bacterium solution as the bio-bleaching liquid in ramie biological bleaching process；Bio-bleaching liquid is noted
Enter in Bellmer, the ramie after degumming and beating are handled and are drained is immersed in bio-bleaching liquid, ramie and bio-bleaching liquid
Solid-liquid ratio be 1: 8, bio-bleaching 30min obtains bleached ramie at 40 DEG C of temperature, and bio-bleaching liquid recycles 30 times, often
The mixing bacterium solution that volume fraction is 5% is added during secondary recycling.Bleached ramie is woven into service sink with water by solid-liquid ratio 1: 120
In, take out, drain after immersion 20min.
After testing, by the obtained degummed ramie of the present invention, delignification rate 77.5%, degummed ramie residual gum content 1.85%,
Whiteness 51.5, bleaching process often produce water consumption 6.2t, COD88mg/L caused by 1t degummed ramie fibers.
Embodiment 2
Bacterium solution A and bacterium solution B is mixed according to volume ratio 3.75: 1 and obtains mixing bacterium solution, bacterium solution will be mixed and be diluted with water 35 times
Obtain dilution and mix bacterium solution, dilution is mixed into bacterium solution as the bio-bleaching liquid in ramie biological bleaching process；By bio-bleaching
In liquid injection Bellmer, the ramie after degumming and beating are handled and are drained is immersed in bio-bleaching liquid, and ramie floats with biology
The solid-liquid ratio of white liquor is 1: 30, and bio-bleaching 5min obtains bleached ramie under temperature 60 C, and bio-bleaching liquid recycles 25
It is secondary, the mixing bacterium solution that volume fraction is 0.5% is added when recycling every time.Bleached ramie is woven into water by solid-liquid ratio 1: 20
In service sink, take out, drain after immersion 3min.
After testing, by the obtained degummed ramie of the present invention, delignification rate 79.1%, degummed ramie residual gum content 1.82%,
Whiteness 51.7, bleaching process often produce water consumption 1.8t, COD265mg/L caused by 1t degummed ramie fibers.
Embodiment 3
Bacterium solution A and bacterium solution B is mixed according to volume ratio 2: 1 and obtains mixing bacterium solution, mixing bacterium solution is diluted with water into 10 times obtains
Bacterium solution is mixed to dilution, dilution is mixed into bacterium solution as the bio-bleaching liquid in ramie biological bleaching process；By bio-bleaching liquid
Inject in Bellmer, the ramie after degumming and beating are handled and are drained is immersed in bio-bleaching liquid, ramie and bio-bleaching
The solid-liquid ratio of liquid is 1: 15, and bio-bleaching 20min obtains bleached ramie under temperature 45 C, and bio-bleaching liquid recycles 26
It is secondary, the mixing bacterium solution that volume fraction is 2% is added when recycling every time.Bleached ramie is woven into clearly with water by solid-liquid ratio 1: 40
In wash pool, take out, drain after immersion 10min.
After testing, by the obtained degummed ramie of the present invention, delignification rate 80.4%, degummed ramie residual gum content 1.78%,
Whiteness 52.6, bleaching process often produce water consumption 3.7t, COD120mg/L caused by 1t degummed ramie fibers.
Embodiment 4
Bacterium solution A and bacterium solution B is mixed according to volume ratio 2: 1 and obtains mixing bacterium solution, mixing bacterium solution is diluted with water into 15 times obtains
Bacterium solution is mixed to dilution, dilution is mixed into bacterium solution as the bio-bleaching liquid in ramie biological bleaching process；By bio-bleaching liquid
Inject in bar shaped Bellmer, the ramie after degumming and beating are handled and are drained is immersed in bio-bleaching liquid, ramie and biology
The solid-liquid ratio of bleaching liquid is 1: 20, and the translational speed of the first transmission crawler belt is 0.1m/min, from entering numb end into bar shaped Bellmer
The speed that injection dilution mixes bacterium solution is 0.5m3/ min, bio-bleaching 30min, obtains bleached ramie under temperature 50 C.Bleaching
Ramie is woven into bar shaped service sink with water by solid-liquid ratio 1: 60, and the water-carrying capacity of water inlet is 5m3/ min, water (flow) direction and second
The moving direction of crawler belt is transmitted on the contrary, bleached ramie reaches under the transmission of the second transmission crawler belt through 20min from delivery port one end
The water inlet other end.
After testing, by the obtained degummed ramie of the present invention, delignification rate 81.4%, degummed ramie residual gum content 1.75%,
Whiteness 52.7, bleaching process often produce water consumption 6.9t, COD82mg/L caused by 1t degummed ramie fibers.
Embodiment 5
Bacterium solution A and bacterium solution B is mixed according to volume ratio 3: 1 and obtains mixing bacterium solution, mixing bacterium solution is diluted with water into 20 times obtains
Bacterium solution is mixed to dilution, dilution is mixed into bacterium solution as the bio-bleaching liquid in ramie biological bleaching process；By bio-bleaching liquid
Inject in bar shaped Bellmer, the ramie after degumming and beating are handled and are drained is immersed in bio-bleaching liquid, ramie and biology
The solid-liquid ratio of bleaching liquid is 1: 15, and the translational speed of the first transmission crawler belt is 5m/min, is noted from numb end is entered into bar shaped Bellmer
The speed for entering dilution mixing bacterium solution is 2m3/ min, the bio-bleaching 5min at 55 DEG C of temperature, obtains bleached ramie.Bleached ramie
It is woven into water by solid-liquid ratio 1: 80 in bar shaped service sink, the water-carrying capacity of water inlet is 0.5m3/ min, water (flow) direction pass with second
The moving direction of crawler belt is sent on the contrary, bleached ramie is reached into water under the transmission of the second transmission crawler belt through 3min from delivery port one end
The mouth other end.
After testing, by the obtained degummed ramie of the present invention, delignification rate 84.4%, degummed ramie residual gum content 1.74%,
Whiteness 53.5, bleaching process often produce water consumption 2.2t, COD140mg/L caused by 1t degummed ramie fibers.
Embodiment 6
Bacterium solution A and bacterium solution B is mixed according to volume ratio 2.5: 1 and obtains mixing bacterium solution, bacterium solution will be mixed and be diluted with water 18 times
Obtain dilution and mix bacterium solution, dilution is mixed into bacterium solution as the bio-bleaching liquid in ramie biological bleaching process；By bio-bleaching
In liquid injection bar shaped Bellmer, the ramie after degumming and beating are handled and are drained is immersed in bio-bleaching liquid, ramie and life
The solid-liquid ratio of thing bleaching liquid is 1: 18, and the translational speed of the first transmission crawler belt is 2m/min, from entering numb end into bar shaped Bellmer
The speed that injection dilution mixes bacterium solution is 1m3/ min, bio-bleaching 12min, obtains bleached ramie under temperature 45 C.Bleach ramie
Fiber crops are woven into bar shaped service sink with water by solid-liquid ratio 1: 50, and the water-carrying capacity of water inlet is 2m3/ min, water (flow) direction pass with second
The moving direction of crawler belt is sent on the contrary, bleached ramie is reached into water under the transmission of the second transmission crawler belt through 7min from delivery port one end
The mouth other end.
After testing, by the obtained degummed ramie of the present invention, delignification rate 86.2%, degummed ramie residual gum content 1.73%,
Whiteness 53.8, bleaching process often produce water consumption 3.4t, COD102mg/L caused by 1t degummed ramie fibers.
Claims (10)
- A kind of 1. bio-bleaching method for degummed ramie fiber production, it is characterised in that comprise the following steps：S1, bacterium solution culture：Using bacillus sp.HG-116 as strain, by actication of culture step, expand Incubation step obtains bacterium solution A；Using bacillus sp.HG-247 as strain, walked respectively by actication of culture Suddenly, expand incubation step and obtain bacterium solution B；It is prepared by S2, bio-bleaching liquid：The bacterium solution A and bacterium solution B is mixed according to volume ratio 1: 1~3.75: 1 and obtains mixing bacterium Liquid, the mixing bacterium solution is diluted with water 3~35 times and obtains dilution mixing bacterium solution, the dilution is mixed into bacterium solution gives birth to as ramie Bio-bleaching liquid in thing bleaching process；S3, bio-bleaching：The bio-bleaching liquid is injected in Bellmer, the ramie leaching after degumming and beating are handled and are drained Not in the bio-bleaching liquid, the ramie and the solid-liquid ratio of the bio-bleaching liquid are 1: 8~1: 30, in temperature 40~60 5~30min of bio-bleaching obtains bleached ramie at DEG C.
- 2. bio-bleaching method according to claim 1, it is characterised in that in the step S3, the bio-bleaching liquid Recycle 25~30 times, the mixing bacterium solution that volume fraction is 0.5%~5% is added when recycling every time.
- 3. bio-bleaching method according to claim 1, it is characterised in that in the step S2, the Bellmer is bar Shape Bellmer, the both ends of the bar shaped Bellmer are respectively into numb end and go out numb end, be provided with the bar shaped Bellmer from It is described enter numb end to it is described go out the movement of numb end the first transmission crawler belt.
- 4. bio-bleaching method according to claim 3, it is characterised in that the ramie it is described enter numb end be placed into institute After stating bar shaped Bellmer, be moved under the drive of the described first transmission crawler belt it is described go out numb end.
- 5. bio-bleaching method according to claim 4, it is characterised in that it is described first transmission crawler belt translational speed be 0.1~5m/min, the side that the first transmission crawler belt goes out numb end described in are gradually raised and are higher than the bar shaped Bellmer Wall, carry the bleached ramie and leave the bar shaped Bellmer and enter collection frame.
- 6. the bio-bleaching method according to any one in claim 3~5, it is characterised in that from it is described enter numb end to Injection dilution mixes bacterium solution in the bar shaped Bellmer, and injection rate is 0.5~2m3/min。
- 7. bio-bleaching method according to claim 1, it is characterised in that also include after the step S3：S4, cleaning：The bleached ramie is woven into service sink with water by solid-liquid ratio 1: 20~1: 120, after soaking 3~20min Take out, drain.
- 8. bio-bleaching method according to claim 3, it is characterised in that the service sink is bar shaped service sink, described The second transmission crawler belt is provided with bar shaped service sink, the bleached ramie is moved into one end of the bar shaped service sink and fully soaked Submerge in water, picked up under the transmission of the second transmission crawler belt after 3~20min is moved to the other end of the bar shaped Bellmer.
- 9. bio-bleaching method according to claim 8, it is characterised in that the bar shaped service sink include water inlet and Delivery port, flow through the bar shaped service sink from the water of water inlet injection and flowed out from the delivery port, the water (flow) direction with it is described The moving direction of second transmission crawler belt is opposite.
- 10. bio-bleaching method according to claim 9, it is characterised in that the water-carrying capacity of the water inlet be 0.5~ 5m3/min。
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| CN107156975B (en) * | 2017-06-23 | 2018-11-02 | 山东理工大学 | The method that biological fermentation process removes melanin in human hair fiber |
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| CN101173264A (en) * | 2007-10-31 | 2008-05-07 | 天津大学 | Beta-mannase composite preparations and method for producing the same |
| CN101235547A (en) * | 2008-03-06 | 2008-08-06 | 北京林业大学 | Method for producing bamboo dissolving pulp |
| CN101581034A (en) * | 2008-05-14 | 2009-11-18 | 哈尔滨理工大学 | Biologically-aided totally-chlorine-free bleaching technology of flax cloth or fiber |
| CN102102229A (en) * | 2009-12-21 | 2011-06-22 | 沅江市明星麻业有限公司 | Process and device for water-bath continuous fermentation of biologic degumming fibrilia |
| CN102146589A (en) * | 2011-01-13 | 2011-08-10 | 祝洪哲 | Short-flow environment-friendly degumming and bleaching method for hemp fibers |
| CN102888366A (en) * | 2012-09-17 | 2013-01-23 | 贾平 | Compound bacteria and method for preparing textile fiber using same |
| CN103937771A (en) * | 2014-03-05 | 2014-07-23 | 天津科技大学 | Alkaline pectinase preparation for cannabissalival degumming, and cannabissalival degumming method |
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