CN107326453A - One kind cleans degumming method of bast fiber - Google Patents
One kind cleans degumming method of bast fiber Download PDFInfo
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- CN107326453A CN107326453A CN201710533841.2A CN201710533841A CN107326453A CN 107326453 A CN107326453 A CN 107326453A CN 201710533841 A CN201710533841 A CN 201710533841A CN 107326453 A CN107326453 A CN 107326453A
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01C—CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES
- D01C1/00—Treatment of vegetable material
Abstract
Degumming method of bast fiber is cleaned the present invention relates to one kind, belongs to weaving, biological and field of environment protection.One kind cleans degumming method of bast fiber, including degumming step, in the degumming step cooking liquor used be the dilution of cellulose extractant, the raffinate of Liang containing Gu≤10%, except at least one of waste water after residue and lignin, the extractant mixes gained with B liquid by A liquid, the A liquid is alkali lye, and the B liquid is made up of crude enzyme liquid and enzyme stabilizers, wherein, the crude enzyme liquid be Bacillus subtillis it is fermented after, the crude enzyme liquid of the clarification obtained after separating thallus.It is of the invention that flaxen fiber is mainly handled in a bath using crude enzyme liquid, sig water, so that the colloid in raw ramie is varied widely on molecular structure, the stability of colloidal complex is by heavy damage, formed and be swelled the modified alternating except colloid and circulation, reach the quick purpose that degumming is carried out to flaxen fiber under normal temperature condition.
Description
Technical field
Degumming method of bast fiber is cleaned the present invention relates to one kind, belongs to weaving, biological and field of environment protection.
Background technology
Flaxen fiber fiber is a kind of ancient, graceful, with cultural connotation fiber, in China's Nature Fibre Textile development history
On occupy important historical role.The special ultrafine micropore structure of flaxen fiber fibrous inside makes it have powerful adsorption capacity,
Formaldehyde in air can be adsorbed, benzene, toluene, the harmful substance such as ammonia eliminates bad smell.And flaxen fiber fiber contains a variety of natural bacteriostatics
Trace element, can effectively suppress the growth of bacterium acarid, play a part of the anti-peculiar smell of antibacterial.It has been also equipped with superior saturating simultaneously
Gas and conductivity of heat, it is pleasant that summer dress allows people to feel nice and cool, and winter then feels more comfortable, automatic constant-temperature, allows people really to experience " natural
The glamour of air-conditioning " flaxen fiber.
Colloidal complex containing 25%--30% in flaxen fiber raw ramie (bast), is wrapped in the outside of flaxen fiber fiber,
Make fiber mutually cemented together, it is impossible to be directly used in weaving, it is therefore necessary to carry out degumming process, discharge fiber and in " beam
Fiber " released state.
Traditional jute fiber degumming is boiled mainly with carrying out chemical Degumming based on caustic soda using strong acid, highly basic, HTHP
Refining, is broken fiber molecule chain, and crystallinity is improved, but fiber crops rigidity increase after chemical Degumming, and cohesive force is deteriorated, and fabric feeling is thick
Firmly, take scratchy.And the problem such as cost is high, seriously polluted that flaxen fiber chemical Degumming technology is present.On the other hand, in order to solve
Chemical Degumming cost is high, the problem such as seriously polluted, and since the eighties, China takes some new Degumming methods, such as enzyme process
Degumming and microbial degumming, although both cycles for solving chemical Degumming it is short, it is seriously polluted the problems such as.But enzyme process
The activity stability of enzyme is poor in Degumming method, and degumming efficiency is low；Its strain enzymatic productivity of microbial degumming is low, not only degumming efficiency
It is low, and Spawn incubation technical requirements are high, and both Degumming method degumming technologies are also immature, also have from industrial production very big
Distance.
The content of the invention
It is an object of the invention to provide a kind of Novel clean jute fiber degumming technology, this method is simple and easy to apply, be beneficial to
Industrial application.
It is fiber that one kind, which cleans cooking liquor used in degumming method of bast fiber, including degumming step, the degumming step,
The dilution of plain extractant, the raffinate of Liang containing Gu≤10%, except at least one of waste water after residue and lignin,
The extractant mixes gained with B liquid by A liquid, wherein, the volume ratio of the A liquid and B liquid is 3:1~5:1,
The A liquid, by mass percentage, is made up of following components：Sodium hydroxide 8~12%；Sodium carbonate 1~3%；Chlorination
Sodium 2~4%；Calcium chloride 1~3%；Sodium phosphate 0.5~1%；Sodium formate 0.1~0.5%；Sodium metasilicate 2.2~4.2%；Sulfurous acid
Sodium 1~2%；Water 70.3~84.2%；
The B liquid is made up of crude enzyme liquid and enzyme stabilizers, wherein, the crude enzyme liquid is Bacillus subtillis (Bacillus
Subtilis after) CGMCC1.836 is fermented, the crude enzyme liquid of the clarification obtained after separating thallus.
Bacillus subtillis described in the method for the invention (Bacillus subtilis) CGMCC1.836 can be general by China
Logical Microbiological Culture Collection administrative center (China General Microbiological Culture Collection
Center, CGMCC) obtain.
" raffinate of Liang containing Gu≤10% " of the present invention refers to the boiling raffinate of the gained after once boiling process.In boiling
During, once boiling is carried out to wood fibre using cooking liquor, boiling carries out solid filtering after terminating, after filtering containing solid amount≤
10% cooking liquor is named as " raffinate of Liang containing Gu≤10% "
" except residue and the waste water after lignin " of the present invention refers to the removing residue of gained and wood after secondary boiled process
The waste water of element.In digestion process, boiling twice is carried out to wood fibre using cooking liquor, the second boiling terminates in rear cooking liquor
Containing substantial amounts of residue and lignin solid, the cooking liquor after residue and lignin are removed is named as " except residue and giving up after lignin
Water ".
In boiling step of the present invention cooking liquor used be the dilution of cellulose extractant, Liang containing Gu≤10% it is residual
Liquid, except one kind in the waste water after residue and lignin, or wherein any two kinds or any three kinds of mixing.
Further, when the dilution that cooking liquor is cellulose extractant, the raffinate of Liang containing Gu≤10%, except residue and wood
When being used in mixed way for two or three in the waste water after element, each component can be used in mixed way with arbitrary proportion, meet boiling needed for boiling
Bath raio.
The dilution of cellulose extractant of the present invention is preferably 10~20 times that extractant is diluted with water to original volume
The solution of gained.
Further, concentration of the enzyme stabilizers in B liquid is 4~6mM；Further, preferably described enzyme is stable
Concentration of the agent in B liquid is 5mM.
Cellulose extractant of the present invention, preferably described A liquid, by mass percentage, is made up of following components：Hydroxide
Sodium 10%；Sodium carbonate 2%；Sodium chloride 3%；Calcium chloride 2.5%；Sodium phosphate 0.6%；Sodium formate 0.3%；Sodium metasilicate 3.1%；It is sub-
Sodium sulphate 1.4%；Water 77.1%.
Enzyme stabilizers of the present invention are polyol, preferably ethylene glycol or glycerine.
Further, the crude enzyme liquid is made as follows：
A. Bacillus subtillis (Bacillus subtilis) CGMCC1.836 is inoculated into seed culture medium, 36 DEG C
Concussion and cultivate 18h, is prepared into seed liquor；35L fermentation mediums are prepared, are poured into 50L fermentation tanks, it is cold after 121 DEG C of sterilizing 20min
But；According to 5% (v/v) inoculum concentration, seed liquor is connected in fermentation medium, 36 DEG C of culture 60h, ventilation is 15L/min, is obtained
Zymotic fluid, wherein,
The constituent of described seed culture medium is as follows：Sucrose 20g/L, peptone 10g/L, corn steep liquor 30g/L, sulfuric acid
Ammonium 4g/L, dipotassium hydrogen phosphate 18.4g/L, potassium dihydrogen phosphate 6g/L, pH7.0；
The constituent of the fermentation medium is as follows：Glucose 30g/L, corn steep liquor 15g/L, ammonium sulfate 4g/L, phosphoric acid
Hydrogen dipotassium 9.2g/L, potassium dihydrogen phosphate 3g/L, pH7.0；
B. it will continuously be accessed in zymotic fluid obtained by step a in tube centrifuge, revolution is 14000rpm, takes supernatant, i.e.,
For crude enzyme liquid.
Further, the B liquid is made as follows：It is 4~6mM to thick by concentration of the enzyme stabilizers in B liquid
Enzyme stabilizers are added in enzyme liquid
Further, the plant cellulose extractant that cleans is made as follows：B liquid is mixed with A liquid, its
The volume ratio of middle A liquid and B liquid is 3:1~5:1.
Conditions of cooking is in the step of preparation method of the present invention for cleaning reed pulp preferred boiling：Boiling temperature 60
~80 DEG C；Cooking pressure is normal pressure；70~120min of digestion time；Boiling bath raio (herein refers to the matter of fibrous raw material and cooking liquor
Amount ratio) it is 1:8~1:10.
A preferred technical scheme of the invention is：
One kind cleans degumming method of bast fiber, and methods described includes following processing steps：
Step 1:Flaxen fiber is subjected to shredding, removal of impurities, combing；
Step 2:The flaxen fiber tentatively combed is put into digester, and adds the cooking liquor prepared；Boiling bath raio 1:8~
1:10；Normal pressure, 50 DEG C~80 DEG C of boiling temperature；40~80min of digestion time；
Step 3:Flaxen fiber feeding washing step after boiling is washed；
Step 4:By after cleaning flaxen fiber bleaching, drying, then through health, become more meticulous combing.
Beneficial effects of the present invention are：It is of the invention main using by Bacillus subtillis (Bacillus subtilis)
After CGMCC1.836 is fermented, the crude enzyme liquid of the clarification obtained after separating thallus (main component be alkaline pectate lyase and
Alkaline polygalacturonase), sig water one bathe in handle flaxen fiber so that the colloid in raw ramie occurs on molecular structure
Large change, the stability of colloidal complex is by heavy damage, and formation is swelled alternating and circulation that-modification-removes colloid, reached
The quick purpose that degumming is carried out to flaxen fiber under normal temperature condition.
Embodiment
Following non-limiting examples can make one of ordinary skill in the art be more fully understood the present invention, but not with
Any mode limits the present invention.
Test method described in following embodiments, is conventional method unless otherwise specified；The reagent and material, such as
Without specified otherwise, commercially obtain.
It is of the present invention clean plant cellulose extractant (degumming agent), the preparation of cooking liquor and clean flaxen fiber take off
Adhesive process method, comprises the following steps：
1. cleaning the preparation of plant cellulose extractant (degumming agent), comprise the following steps：
A. Bacillus subtillis (Bacillus subtilis) CGMCC1.836 is inoculated into seed culture medium, 36 DEG C
Concussion and cultivate 18h, is prepared into seed liquor.35L fermentation mediums are prepared, are poured into 50L fermentation tanks, it is cold after 121 DEG C of sterilizing 20min
But.According to 5% inoculum concentration, seed liquor is connected in fermentation medium.36 DEG C of culture 60h, ventilation is 15L/min.
The seed culture medium (g/L):Sucrose 20, peptone 10, corn steep liquor 30, ammonium sulfate 4, dipotassium hydrogen phosphate 18.4,
Potassium dihydrogen phosphate 6, pH7.0.
The fermentation medium (g/L):Glucose 30, corn steep liquor 15, ammonium sulfate 4, dipotassium hydrogen phosphate 9.2, biphosphate
Potassium 3, pH7.0.
B. the zymotic fluid obtained in step a is continuously accessed in tube centrifuge, revolution is 14000rpm, takes supernatant
Liquid, you can crude enzyme liquid is made.
C. ethylene glycol (Dalian Pharmaceutical Group Hua Bo factories) stabilizer that concentration is 5mM is added in crude enzyme liquid, after mixing
B liquid is obtained, B liquid is mixed with A liquid, the volume ratio of A liquid and B liquid is respectively 3:1、4:1、5:1,
The A liquid, by mass percentage, is made up of following components：Sodium hydroxide 10%；Sodium carbonate 2%；Sodium chloride 3%；
Calcium chloride 2.5%；Sodium phosphate 0.6%；Sodium formate 0.3%；Sodium metasilicate 3.1%；Sodium sulfite 1.4%；Water 77.1%.
2. prepared by degumming cooking liquor, comprise the following steps：Plant cellulose extractant (degumming agent) is diluted 10~20 times
Prepare cooking liquor.
3. cleaning jute fiber degumming process, comprise the following steps：
Step 1:Flaxen fiber is subjected to shredding, removal of impurities, combing.
Step 2:The flaxen fiber tentatively combed is put into digester, and adds the cooking liquor prepared；Boiling bath raio 1:8~
1:10；Normal pressure, 50 DEG C~80 DEG C of boiling temperature；40~80min of digestion time.
Step 3:Flaxen fiber feeding washing step after boiling is washed, the degumming impurity of attachment is washed away.
Step 4:By after cleaning flaxen fiber bleaching, drying, then through health, become more meticulous combing.
4. in the degumming method of bast fiber of the present invention, the flaxen fiber before and after degumming is according to " FZ T 30001-1992 ramies
Main chemical compositions systematic quantification analysis method " is detected：
(1) numb 4 parts of about 1.2g of sample sample is weighed, dries to constant weight in 105 ± 3 DEG C and (typically needs 4h) and dry the W that weighs0,
Sample is moved into 100mL conical flask with stopper, 0.5%EDTA 60mL is added and is placed in autoclave, final vacuum of seething with excitement
5min, 105 ± 1 DEG C are controlled with adjustable transformer, extract 45min.Take out, filtered with sand core funnel, retain filter residue, in 105 ± 3
DEG C dry to constant weight and (typically need 4h), cooling is weighed W1, 0.0001g pectin weight is accurate to for W1-W0- W cores.
(2) above-mentioned gained filter residue is moved into conical flask with stopper in sand core funnel with glass bar and small brushes, added
2moL/L hydrochloric acid 60mL, which is placed in autoclave, extracts hemicellulose, extracts 60min, and core is used in cold water cooling immediately
Funnel is filtered, hot distilled water washing filter residue 4~5 times, is retained filter residue, is dried to constant weight in 105 ± 3 DEG C and (typically need 4h), cooling claims
Weight, is accurate to 0.0001g, dries the W that weighs2, hemicellulose is W containing weight2-W1。
(3) above-mentioned gained filter residue is moved into 150mL beakers in tall form in sand core funnel, addition is cooled to 10~15 DEG C in advance
72% sulfuric acid 15mL be placed in refrigerator after 10~15 DEG C of reaction 4h, make homogenate with glass bar extruding, often 30min mono-
It is secondary, totally 2~3 times, plus distilled water 100mL stands overnight, and is filtered with the sand core funnel of known weight, thermal distillation is washed 5~6 times,
Retain filter residue, dry to constant weight in 105 ± 3 DEG C and (typically need 4h), cooling is weighed, be accurate to 0.0001g, dry the W that weighs3, fiber
Plain weight is W3-W2。
(4) lignin weight is W3-WCore。
CX--- pectin content；Hemicellulose level；Content of cellulose；Content of lignin.
WX--- pectin weight；Hemicellulose weight；Cellulose；Lignin weight (g).
W0--- sample dry weight (g).
The plant cellulose extractant of embodiment 1 is applied in hemp fiber degumming engineering
1. cooking liquor is prepared：Cellulose extractant is prepared --- and A liquid is 5 with B liquid volume ratio：1；1 is pressed again：10 ratio
It is diluted with water, is configured to cooking liquor.
2. technique：Comb removal of impurities hemp raw material 5kg；Bath raio is 1：10；Add boiling 50min after cooking liquor；Boiling
Temperature is 80 DEG C；1, tool are the results are shown in Table through washing, bleaching, drying, health, the hemp composition detection before and after combing that becomes more meticulous
Body is：
Step 1:Hemp is subjected to shredding, removal of impurities, combing.
Step 2:The flaxen fiber 5kg tentatively combed is put into digester, and adds the cooking liquor prepared；Boiling bath raio 1:
10；Normal pressure, 80 DEG C of boiling temperature；Digestion time 50min.
Step 3:Hemp feeding washing step after boiling is washed, the degumming impurity of attachment is washed away.
Step 4:By after cleaning hemp bleaching, drying, then through health, become more meticulous combing.
Embodiment 2
1. cooking liquor is prepared：Whole boiling raffinates (raffinate of Liang containing Gu≤10%) conduct in embodiment 1 obtained by step 2
A part for cooking liquor, is required according to bath raio, cooking liquor that cooking liquor insufficient section is prepared with embodiment 1 (i.e. A liquid and B liquid
Product is than being 5：1；1 is pressed again：10 ratio is diluted with water, the cooking liquor being formulated) supplemented (cooking liquor newly prepared
Account for whole cooking liquors 30%).
2. technique be the same as Example 1, hemp composition detection the results are shown in Table 1.
Embodiment 3
1. cooking liquor is prepared：Whole boiling raffinates (raffinate of Liang containing Gu≤10%) conduct in embodiment 2 obtained by step 2
A part for cooking liquor, is required according to bath raio, and the cooking liquor that cooking liquor insufficient section is prepared with embodiment 1, which is supplemented, (newly matches somebody with somebody
The cooking liquor of system account for whole cooking liquors 30%).
2. technique be the same as Example 1, hemp composition detection the results are shown in Table 1.
To embodiment 1, embodiment 2, the hemp of the boiling of embodiment 3 degumming effect --- i.e. fiber Indexs measure
(cellulose, hemicellulose, pectin, lignin, fineness, strength) is shown in Table 1.As seen from Table 1, its content of cellulose is greatly improved；
Lignin is effectively reduced with pectin；Fineness, strongly reach and can spin the requirement of high branch mixed yarn.The cooking liquor that this patent is developed can
To apply very well in hemp fiber degumming.
The hemp testing result of table 1
The plant cellulose extractant of embodiment 4 is applied in hemp fiber degumming engineering
1. cooking liquor is prepared：Cellulose extractant is prepared --- and A liquid is 4 with B liquid volume ratio:1；1 is pressed again：15 ratio
(waste water be handled through the way of distillation obtained by) is diluted with waste water obtained by the step 3 of embodiment 1 washing hemp, is configured to
Cooking liquor.
2. technique：Comb removal of impurities hemp raw material 5kg；Bath raio is 1：10；Add boiling 50min after cooking liquor；Reaction
Temperature is 80 DEG C；Through washing, bleaching, drying, health, the hemp Indexs measure after combing that becomes more meticulous (i.e. cellulose, half fibre
Dimension element, pectin, lignin, fineness, strength) 2 are the results are shown in Table, be specially：
Step 1:Hemp is subjected to shredding, removal of impurities, combing.
Step 2:The flaxen fiber 5kg tentatively combed is put into digester, and adds the cooking liquor prepared；Boiling bath raio 1:
10；Normal pressure, 80 DEG C of boiling temperature；Digestion time 50min.
Step 3:Hemp feeding washing step after boiling is washed, the degumming impurity of attachment is washed away.
Step 4:By after cleaning hemp bleaching, drying, then through health, become more meticulous combing.
Embodiment 5
1. cooking liquor is prepared：Whole boiling raffinates (raffinate of Liang containing Gu≤10%) conduct in embodiment 4 obtained by step 2
A part for cooking liquor, is required according to bath raio, and the cooking liquor that cooking liquor insufficient section is prepared with embodiment 4, which is supplemented, (newly matches somebody with somebody
The cooking liquor of system account for whole cooking liquors 30%).
2. technique be the same as Example 4, hemp testing result is shown in Table 2.
Embodiment 6
1. cooking liquor is prepared：Whole boiling raffinates (raffinate of Liang containing Gu≤10%) conduct in embodiment 5 obtained by step 2
A part for cooking liquor, is required according to bath raio, and the cooking liquor that cooking liquor insufficient section is prepared with embodiment 4, which is supplemented, (newly matches somebody with somebody
The cooking liquor of system account for whole cooking liquors 30%).
2. technique be the same as Example 4, hemp testing result is shown in Table 2.
To embodiment 4, embodiment 5, the flaxen fiber of the boiling of embodiment 6 degumming effect --- i.e. fiber Indexs measure is shown in Table
2.As seen from Table 2, cooking liquor concentration is reduced, thinner ratio increase, after digestion time reduces, the hemp of its three repetition boilings
Its cellulose, which extracts (degumming) effect, still higher level, and lignin is effectively reduced with pectin；Fineness, strongly reach can
Spin the requirement of high branch mixed yarn.The plant cellulose extractant of this patent development can be applied in hemp fiber degumming very well.
The hemp testing result of table 2
The plant cellulose extractant of embodiment 7 is applied in ramee degumming
1. cooking liquor is prepared：Cellulose extractant is prepared --- and A liquid is 4 with B liquid volume ratio:1；1 is pressed again：15 ratio
It is diluted with water, is configured to cooking liquor.
2. technique：Shredding removal of impurities ramee raw material 5kg；Bath raio is 1：10；Digestion time 50min；Boiling temperature is 80
℃；Ramee composition detection the results are shown in Table 3 after washing, be specially：
Step 1:Ramee is subjected to shredding, removal of impurities, combing.
Step 2:The ramee 5kg tentatively combed is put into digester, and adds the cooking liquor prepared；Boiling bath raio
1:10；Normal pressure, 80 DEG C of boiling temperature；Digestion time 50min.
Step 3:Ramee feeding washing step after boiling is washed, the degumming impurity of attachment is washed away.
Step 4:By after cleaning ramee bleaching, drying, then through health, become more meticulous combing.
Embodiment 8
1. cooking liquor is prepared：Whole boiling raffinates (raffinate of Liang containing Gu≤10%) conduct in embodiment 7 obtained by step 2
A part for cooking liquor, is required according to bath raio, and the cooking liquor that cooking liquor insufficient section is prepared with embodiment 7, which is supplemented, (newly matches somebody with somebody
The cooking liquor of system account for whole cooking liquors 30%).
2. technique be the same as Example 7, ramee composition detection the results are shown in Table 3.
Embodiment 9
1. cooking liquor is prepared：Whole boiling raffinates (raffinate of Liang containing Gu≤10%) conduct in embodiment 8 obtained by step 2
A part for cooking liquor, is required according to bath raio, and the cooking liquor that cooking liquor insufficient section is prepared with embodiment 7, which is supplemented, (newly matches somebody with somebody
The cooking liquor of system account for whole cooking liquors 30%).
2. technique be the same as Example 7, ramee composition detection the results are shown in Table 3.
To embodiment 7, embodiment 8, the glue effect of the ramee of the boiling of embodiment 9 --- i.e. fibre composition detection is (fine
Dimension element, hemicellulose, pectin, lignin) it is shown in Table 3.As seen from Table 3, the extractant (degumming agent) that this patent is developed is fine in ramie
Tie up in degumming, also reached fine degumming effect.
The ramee testing result of table 3
Claims (10)
1. one kind cleans degumming method of bast fiber, it is characterised in that：Including degumming step, boiling used in the degumming step
Liquid is the dilution of cellulose extractant, the raffinate of Liang containing Gu≤10%, except at least one of waste water after residue and lignin,
The extractant mixes gained with B liquid by A liquid, wherein, the volume ratio of the A liquid and B liquid is 3:1~5:1,
The A liquid, by mass percentage, is made up of following components：Sodium hydroxide 8~12%；Sodium carbonate 1~3%；Sodium chloride 2
~4%；Calcium chloride 1~3%；Sodium phosphate 0.5~1%；Sodium formate 0.1~0.5%；Sodium metasilicate 2.2~4.2%；Sodium sulfite 1
~2%；Water 70.3~84.2%；
The B liquid is made up of crude enzyme liquid and enzyme stabilizers, wherein, the crude enzyme liquid is Bacillus subtillis
(Bacillussubtilis) after CGMCC1.836 is fermented, the crude enzyme liquid of the clarification obtained after separating thallus.
2. according to the method described in claim 1, it is characterised in that：Concentration of the enzyme stabilizers in B liquid is 4~6mM.
3. method according to claim 2, it is characterised in that：Concentration of the enzyme stabilizers in B liquid is 5mM.
4. method according to claim 1 or 2, it is characterised in that：The enzyme stabilizers are ethylene glycol or glycerine.
5. according to the method described in claim 1, it is characterised in that：The A liquid, by mass percentage, is made up of following components：
Sodium hydroxide 10%；Sodium carbonate 2%；Sodium chloride 3%；Calcium chloride 2.5%；Sodium phosphate 0.6%；Sodium formate 0.3%；Sodium metasilicate
3.1%；Sodium sulfite 1.4%；Water 77.1%.
6. method according to claim 2, it is characterised in that：The B liquid is made as follows：
A. Bacillus subtillis (Bacillus subtilis) CGMCC1.836 is inoculated into seed culture medium, 36 DEG C of concussions
18h is cultivated, seed liquor is prepared into；35L fermentation mediums are prepared, are poured into 50L fermentation tanks, are cooled down after 121 DEG C of sterilizing 20min；
According to 5% inoculum concentration, seed liquor is connected in fermentation medium, 36 DEG C of culture 60h, ventilation is 15L/min, obtains zymotic fluid,
Wherein,
The constituent of described seed culture medium is as follows：Sucrose 20g/L, peptone 10g/L, corn steep liquor 30g/L, ammonium sulfate
4g/L, dipotassium hydrogen phosphate 18.4g/L, potassium dihydrogen phosphate 6g/L, pH7.0；
The constituent of the fermentation medium is as follows：Glucose 30g/L, corn steep liquor 15g/L, ammonium sulfate 4g/L, phosphoric acid hydrogen two
Potassium 9.2g/L, potassium dihydrogen phosphate 3g/L, pH7.0；
B. it will continuously be accessed in zymotic fluid obtained by step a in tube centrifuge, revolution is 14000rpm, takes supernatant, and be thick
Enzyme liquid, is that 4~6mM adds enzyme stabilizers into crude enzyme liquid by concentration of the enzyme stabilizers in B liquid.
7. according to the method described in claim 1, it is characterised in that：The dilution of the cellulose extractant is extractant water
It is diluted to the solution of 10~20 times of gained of original volume.
8. method according to claim 7, it is characterised in that：Conditions of cooking is in the step of degumming：Boiling temperature 50~
80℃；Cooking pressure is normal pressure；40~80min of digestion time；Boiling bath raio is 1:8~1:10.
9. according to the method described in claim 1, it is characterised in that：When cooking liquor is for the dilution of cellulose extractant, containing solid
The raffinate of Liang≤10%, except residue mixed with two or more in the waste water after lignin when, its each component is mixed with arbitrary proportion.
10. according to the method described in claim 1, it is characterised in that：Methods described includes following processing steps：
Step 1:Flaxen fiber is subjected to shredding, removal of impurities, combing；
Step 2:The flaxen fiber tentatively combed is put into digester, and adds the cooking liquor prepared；Boiling bath raio 1:8~1:
10；Normal pressure, 50 DEG C~80 DEG C of boiling temperature；40~80min of digestion time；
Step 3:Flaxen fiber feeding washing step after boiling is washed；
Step 4:By after cleaning flaxen fiber bleaching, drying, then through health, become more meticulous combing.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111100765A (en) * | 2019-12-23 | 2020-05-05 | 张艳 | Preparation method of degumming agent |
| KR102185434B1 (en) * | 2019-07-30 | 2020-12-01 | 권민정 | A method of producing eco-friendly hemp fibers including enzymatic treatment step |
| CN112981551A (en) * | 2021-02-25 | 2021-06-18 | 阿勒泰戈宝茶股份有限公司 | Method for degumming apocynum skin |
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| CN114182361A (en) * | 2021-11-08 | 2022-03-15 | 宜兴市舜昌亚麻纺织有限公司 | Composite biological enzyme degumming agent suitable for flax fiber supercritical degumming |
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| CN114182361A (en) * | 2021-11-08 | 2022-03-15 | 宜兴市舜昌亚麻纺织有限公司 | Composite biological enzyme degumming agent suitable for flax fiber supercritical degumming |
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