CN101122050A - Enzymatic degumming method for jute or ambari hemp - Google Patents
Enzymatic degumming method for jute or ambari hemp Download PDFInfo
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- CN101122050A CN101122050A CNA2007101225943A CN200710122594A CN101122050A CN 101122050 A CN101122050 A CN 101122050A CN A2007101225943 A CNA2007101225943 A CN A2007101225943A CN 200710122594 A CN200710122594 A CN 200710122594A CN 101122050 A CN101122050 A CN 101122050A
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Abstract
A jute or a kenaf enzyme degumming method includes the following procedures: a. The jute or the kenaf is soaked with laccase water solution; the weight ratio of the laccase water solution to the jute or the kenaf is 12:1 to 40:1; the pH value of the laccase water solution is 3.0 to 6.5, the temperature is 35 to 65percent and preserved for 20 to 120 minutes. b. The jute or the kenaf treated by the laccase water solution is washed by water. c. Then the jute or the kenaf washed by water is soaked by pectic enzyme water solution; the weight ratio of the pectic enzyme water solution to the jute or the kenaf is 12:1 to 40:1; the pH value of the pectic enzyme water solution is 7.0 to 11.0; the temperature is 40 to 70DEG C and preserved for 20 to 120 minutes. d. The enzyme deactivation treatment is conducted to the jute or the kenaf after enzyme treatment. The method of degumming the jute or the kenaf with pectic enzyme and laccase of the invention has simple procedures and good wood fiber quality removing effect.
Description
Technical field
The present invention relates to a kind of jute or gombo hemp Degumming method, particularly relate to the enzymatic degumming method of a kind of jute or gombo hemp.
Background technology
Because flax fibre has sucting wet air permeability, low static behaviour and good antibacterial characteristics preferably, crudefiber crop fabric clothing lining more and more is subjected to people's favor.The lining of existing crudefiber crop fabric clothing is meant that mainly flax, ramie raw materials or this type of raw material and other fiber carry out blending/interweave as cotton, wool, chemical fibre, silk etc. and make, but, make that the crudefiber crop textiles does not have to be more widely used because flax, ramie price are higher.And jute is the second-biggest-in-the-world cellulose fibre that is only second to cotton, and it is cheap, and compares with flax, ramie and to have better hygroscopicity and drapability, and antibacterial ability is only second to hemp, has huge using value and potentiality to be exploited.But because the content of lignin in jute or the gombo hemp is higher, than high several times of flax, use common Degumming method and jute or gombo hemp fiber are come unstuck, remove lignin be difficult to obtain desirable effect, this has restricted jute or the application of gombo hemp aspect garment material greatly." Tianjin University of Technology's journal " August the 24th in 2005, the influence that cellulase, hemicellulase, lignoenzyme and pectin depolymerase are handled tossa studied in volume the 4th phase " enzyme is handled a tossa Effect on Performance " literary composition, what but this article was mainly studied is to utilize above-mentioned various enzyme separately tossa to be handled respectively, even wherein mentioning complex enzyme handles, also only be to utilize laccase and hemicellulase compound with cellulase respectively, facts have proved that this article disclosed method is unsatisfactory to the effect that tossa comes unstuck, removes lignin.Chinese patent literature CN1232691C discloses the method that a kind of applying composite enzyme comes unstuck to jute, this method with the complex enzyme of pectase and laccase to the tossa processing of coming unstuck, the tossa of gained through with other fiber as cotton, chemical fibre blending or interweave and can satisfy the requirement of garment material substantially.But above-mentioned patent documentation disclosed method is desirable not enough to the removal of lignin impurity in the tossa, clearance only is about 76%, the content of lignin is still higher in the tossa of gained, need with other fiber as cotton, chemical fibre blending or interweave, the quality of the garment material that makes is still waiting further raising.
Summary of the invention
For this reason, technical problem to be solved by this invention is to provide a kind of method that pectase and laccase come unstuck to jute or gombo hemp of using, and this method can effectively be removed pectin and the lignin impurity in jute or the gombo hemp fiber.
For solving the problems of the technologies described above, technical scheme of the present invention is: the enzymatic degumming method of a kind of jute or gombo hemp may further comprise the steps:
A. jute or the gombo hemp aqueous solution with laccase is flooded, the weight ratio of the described laccase aqueous solution and jute or gombo hemp is 12: 1-40: 1, and described laccase pH value of aqueous solution is 3.0-6.5, temperature is 35 ℃-65 ℃, keeps 20-120 minute;
B. jute or gombo hemp after handling through the laccase aqueous solution are washed;
C. jute after will washing or gombo hemp flood with the aqueous solution of pectase, the weight ratio of the described pectase aqueous solution and jute or gombo hemp is 12: 1-40: 1, described pectase pH value of aqueous solution is 7.0-11.0, and temperature is 40 ℃-70 ℃, keeps 20-120 minute;
D. jute after handling through described enzyme or gombo hemp are carried out the enzyme deactivation processing.
Said method also is included in described steps d and carries out the step that synergy is banked up and handled before.
Said method also is included in described step b and carries out the step that synergy is banked up and handled before.
Said method, described synergy time of handling of banking up is 6-24 hour.
Said method, the enzyme deactivation in the described steps d are treated to the high temperature washing or regulate the pH value and carry out enzyme deactivation processing, perhaps both combinations.
Said method, the weight ratio of described pectase or laccase and jute or gombo hemp are 0.5: 100-5: 100.
Said method, the temperature of water is more than 75 ℃ when carrying out the washing of described high temperature; PH value when adjusting pH value is carried out the enzyme deactivation processing is below 4.0.
Said method also is included in described step a and before jute or gombo hemp is carried out pretreated step.
Said method, described preliminary treatment are one or more the combination in water-bath, acid bath or the hydrogen peroxide dipping.The temperature of described water-bath is 30 ℃ to 100 ℃; Use sulfuric acid or acetic acid during described acid bath.
Compared with prior art, technical scheme of the present invention has the following advantages: (1) method of the present invention adopts pectase and laccase to the processing of coming unstuck of jute or gombo hemp fiber, adjust the pH value and the temperature of solution respectively by the activity requirement of two kinds of enzymes, not only can give full play to the activity of two kinds of enzymes, improve the effect of coming unstuck and removing lignin, and because two kinds of enzymes are to apply respectively, avoided under a kind of reactive conditions of enzyme, causing the phenomenon of the inactivation of another kind of enzyme, and before being carried out the high temperature washing or regulate the processing of pH value inactivation, the jute after enzyme is handled or gombo hemp carry out the synergy processing of banking up, can remove pectin and lignin in jute or the gombo hemp fiber effectively, its pectin clearance is about 90%, reach as high as 96%, lignin removing rate reaches more than 78%, reach as high as 86%, jute or gombo hemp fiber after the coming unstuck of acquisition have higher spinnability.(2) method of the present invention had been carried out preliminary treatment before to the jute complex enzyme degumming, jute has been played expanded preferably effect, to weaken the associating power between filament, be more conducive to enzyme liquid and contact with the direct of flax fibre, can better remove pectin and lignin in the tossa.
The specific embodiment
Embodiment 1
To unpack by jute or gombo hemp that market is buied, be divided into the wisp one by one that is about about 0.5 kilogram; And carry out the water-bath preliminary treatment, and the temperature of water-bath is 65 ℃, temperature retention time is 2 hours; Get weight and be 0.5% laccase of jute or gombo hemp, and be diluted with water to 12 times of jute or gombo hemp weight, jute or gombo hemp are flooded with the laccase aqueous solution after the dilution;
The pH value of regulating dilution back solution with acetic acid and sodium bicarbonate is 6.5, is warming up to 45 ℃, keeps water cleaning after 120 minutes;
Jute after will washing then or gombo hemp place 12 times of pectase aqueous solution to jute or gombo hemp weight, and the weight of described pectase is 0.5% of jute or gombo hemp, are 11.0 with the pH value of alkali regulator solution, are warming up to 40 ℃, keep 20 minutes; Then jute or gombo hemp are taken out from solution and bank up carrying out the synergy processing of banking up, synergy time of handling of banking up is 24 hours;
To carry out the hot water cleaning with 80 ℃ hot water through bank up jute after handling or gombo hemp of synergy, handle to carry out enzyme deactivation, promptly obtain come unstuck after jute or gombo hemp fiber, the clearance of pectin and lignin is as shown in table 1 in jute after resulting the coming unstuck or the gombo hemp fiber.
Jute after above-mentioned the coming unstuck or gombo hemp fiber are carried out bleaching, strike the jute or the gombo hemp fiber product that can obtain having better spinning property after fiber crops are handled, clean, dewater, dry by prior art.
Embodiment 2
To unpack by jute or gombo hemp that market is buied, be divided into the wisp one by one that is about about 0.5 kilogram; And carry out acid bath and water-bath preliminary treatment, and used acid is that concentration is the concentrated sulfuric acid more than 90%, and the temperature of water-bath is 30 ℃, and temperature retention time is 1 hour;
Get weight and be 5% laccase of jute or gombo hemp, and be diluted with water to 40 times of jute or gombo hemp weight, jute or gombo hemp are flooded with the laccase aqueous solution after the dilution;
The pH value of regulating dilution back solution with acetic acid and sodium bicarbonate is 6.5, is warming up to 60 ℃, keeps 110 minutes; Then jute or gombo hemp are taken out from solution and bank up carrying out the synergy processing of banking up, synergy time of handling of banking up is 24 hours; Then jute or gombo hemp water are cleaned;
Jute after will washing then or gombo hemp place 40 times of pectase aqueous solution to jute or gombo hemp weight, and the weight of described pectase is 5% of jute or gombo hemp, are 10.5 with the pH value of alkali regulator solution, are warming up to 45 ℃, keep 40 minutes; Then jute or gombo hemp are taken out from solution and bank up carrying out the synergy processing of banking up, synergy time of handling of banking up is 6 hours;
To carry out the hot water cleaning with 95 ℃ hot water through bank up jute after handling or gombo hemp of synergy, handle to carry out enzyme deactivation, promptly obtain come unstuck after jute or gombo hemp fiber, the clearance of pectin and lignin is as shown in table 1 in jute after resulting the coming unstuck or the gombo hemp fiber.
Jute after above-mentioned the coming unstuck or gombo hemp fiber are carried out bleaching, strike the jute or the gombo hemp fiber product that can obtain having better spinning property after fiber crops are handled, clean, dewater, dry by prior art.
Embodiment 3
To unpack by jute or gombo hemp that market is buied, be divided into the wisp one by one that is about about 0.5 kilogram; And jute or gombo hemp carried out the acid bath preliminary treatment, used acid is that concentration is the acetic acid more than 90%.Get weight and be 2.5% laccase of jute or gombo hemp, and be diluted with water to 14 times of jute or gombo hemp weight, jute or gombo hemp are flooded with the laccase aqueous solution after the dilution;
The pH value of regulating dilution back solution with acetic acid and sodium bicarbonate is 6.0, is warming up to 55 ℃, keeps water cleaning after 40 minutes;
Jute after will washing then or gombo hemp place 13 times of pectase aqueous solution to jute or gombo hemp weight, and the weight of described pectase is 1.5% of jute or gombo hemp, are 10.0 with the pH value of alkali regulator solution, are warming up to 50 ℃, keep 50 minutes; Then jute or gombo hemp being taken out from solution banks up carries out the synergy processing of banking up, and synergy time of handling of banking up is 10 hours;
To carry out the hot water cleaning with 85 ℃ hot water through bank up jute after handling or gombo hemp of synergy, handle to carry out enzyme deactivation, promptly obtain come unstuck after jute or gombo hemp fiber, the clearance of pectin and lignin is as shown in table 1 in jute after resulting the coming unstuck or the gombo hemp fiber.
Jute after above-mentioned the coming unstuck or gombo hemp fiber are carried out bleaching, strike the jute or the gombo hemp fiber product that can obtain having better spinning property after fiber crops are handled, clean, dewater, dry by prior art.
Embodiment 4
To unpack by jute or gombo hemp that market is buied, be divided into the wisp one by one that is about about 0.5 kilogram; And carry out the hydrogen peroxide dipping preliminary treatment, the concentration of used hydrogen peroxide is 5g/L;
Get weight and be 1.5% laccase of jute or gombo hemp, and be diluted with water to 13 times of jute or gombo hemp weight, jute or gombo hemp are flooded with the laccase aqueous solution after the dilution;
The pH value of regulating dilution back solution with acetic acid and sodium bicarbonate is 5.5, is warming up to 50 ℃, keeps 50 minutes; Then jute or gombo hemp are taken out from solution and bank up carrying out the synergy processing of banking up, synergy time of handling of banking up is 12 hours; Then jute or gombo hemp water are cleaned;
Jute after will washing then or gombo hemp place 14 times of pectase aqueous solution to jute or gombo hemp weight, and the weight of described pectase is 1.0% of jute or gombo hemp, are 9.5 with the pH value of sodium bicarbonate regulator solution, are warming up to 55 ℃ and keep 80 minutes; Then jute or gombo hemp being taken out from solution banks up carries out the synergy processing of banking up, and synergy time of handling of banking up is 15 hours;
To carry out the hot water cleaning with 90 ℃ hot water through bank up jute after handling or gombo hemp of synergy, handle to carry out enzyme deactivation, promptly obtain come unstuck after jute or gombo hemp fiber, the clearance of pectin and lignin is as shown in table 1 in jute after resulting the coming unstuck or the gombo hemp fiber.
Jute after above-mentioned the coming unstuck or gombo hemp fiber are carried out bleaching, strike the jute or the gombo hemp fiber product that can obtain having better spinning property after fiber crops are handled, clean, dewater, dry by prior art.
Embodiment 5
To unpack by jute or gombo hemp that market is buied, be divided into the wisp one by one that is about about 0.5 kilogram; And carry out the water-bath preliminary treatment, and the temperature of described water-bath is 100 ℃, temperature retention time is half an hour;
Get weight and be 3.5% laccase of jute or gombo hemp, and be diluted with water to 20 times of jute or gombo hemp weight, jute or gombo hemp are flooded with the laccase aqueous solution after the dilution;
The pH value of regulating dilution back solution with acetic acid and sodium bicarbonate is 4.0, is warming up to 65 ℃, keeps 60 minutes; Then jute or gombo hemp are taken out from solution and bank up carrying out the synergy processing of banking up, synergy time of handling of banking up is 8 hours; Then jute or gombo hemp water are cleaned;
Jute after will washing then or gombo hemp place 25 times of pectase aqueous solution to jute or gombo hemp weight, and the weight of described pectase is 4.0% of jute or gombo hemp, are 9.0 with the pH value of sodium bicarbonate regulator solution, are warming up to 60 ℃, keep 70 minutes; Then jute or gombo hemp being taken out from solution banks up carries out the synergy processing of banking up, and synergy time of handling of banking up is 20 hours;
To carry out the hot water cleaning with 90 ℃ hot water through bank up jute after handling or gombo hemp of synergy, handle to carry out enzyme deactivation, promptly obtain come unstuck after jute or gombo hemp fiber, the clearance of pectin and lignin is as shown in table 1 in jute after resulting the coming unstuck or the gombo hemp fiber.Therefrom as can be seen, the effect of using technical scheme among this embodiment is one of optimum.
Jute after above-mentioned the coming unstuck or gombo hemp fiber are carried out bleaching, strike the jute or the gombo hemp fiber product that can obtain having better spinning property after fiber crops are handled, clean, dewater, dry by prior art.
Embodiment 6
To unpack by jute or gombo hemp that market is buied, be divided into the wisp one by one that is about about 0.5 kilogram; Get weight and be 4.0% laccase of jute or gombo hemp, and be diluted with water to 25 times of jute or gombo hemp weight, jute or gombo hemp are flooded with the laccase aqueous solution after the dilution;
The pH value of regulating dilution back solution with acetic acid and sodium bicarbonate is 3.5, is warming up to 40 ℃, keeps 70 minutes; Then jute or gombo hemp are taken out from solution and bank up carrying out the synergy processing of banking up, synergy time of handling of banking up is 15 hours; Then jute or gombo hemp water are cleaned;
Jute after will washing then or gombo hemp place 20 times of pectase aqueous solution to jute or gombo hemp weight, and the weight of described pectase is 3.0% of jute or gombo hemp, are 8.5 with the pH value of sodium bicarbonate regulator solution, are warming up to 65 ℃ and keep 90 minutes; Then jute or gombo hemp being taken out from solution banks up carries out the synergy processing of banking up, and synergy time of handling of banking up is 12 hours;
To carry out the hot water cleaning with 85 ℃ hot water through bank up jute after handling or gombo hemp of synergy, handle to carry out enzyme deactivation, promptly obtain come unstuck after jute or gombo hemp fiber, the clearance of pectin and lignin is as shown in table 1 in jute after resulting the coming unstuck or the gombo hemp fiber.Therefrom as can be seen, the effect of using technical scheme among this embodiment is one of optimum.
Jute after above-mentioned the coming unstuck or gombo hemp fiber are carried out bleaching, strike the jute or the gombo hemp fiber product that can obtain having better spinning property after fiber crops are handled, clean, dewater, dry by prior art.
Embodiment 7
To unpack by jute or gombo hemp that market is buied, be divided into the wisp one by one that is about about 0.5 kilogram; Get weight and be 1.5% laccase of jute or gombo hemp, and be diluted with water to 35 times of jute or gombo hemp weight, jute or gombo hemp are flooded with the laccase aqueous solution after the dilution;
The pH value of regulating dilution back solution with acetic acid and sodium bicarbonate is 5.0, is warming up to 35 ℃, keeps water cleaning after 80 minutes;
Jute after will washing then or gombo hemp place 30 times of pectase aqueous solution to jute or gombo hemp weight, and the weight of described pectase is 3.5% of jute or gombo hemp, are 8.0 with the pH value of sodium bicarbonate regulator solution, are warming up to 70 ℃ and keep 100 minutes;
Then jute or gombo hemp being taken out from solution banks up carries out the synergy processing of banking up, and synergy time of handling of banking up is 8 hours;
To be that 3.0 the aqueous solution cleans with the pH value through bank up jute after handling or gombo hemp of synergy, handle to carry out enzyme deactivation, promptly obtain come unstuck after jute or gombo hemp fiber, the clearance of pectin and lignin is as shown in table 1 in jute after resulting the coming unstuck or the gombo hemp fiber.
Jute after above-mentioned the coming unstuck or gombo hemp fiber are carried out bleaching, strike the jute or the gombo hemp fiber product that can obtain having better spinning property after fiber crops are handled, clean, dewater, dry by prior art.
Embodiment 8
To unpack by jute or gombo hemp that market is buied, be divided into the wisp one by one that is about about 0.5 kilogram; Get weight and be 2.5% laccase of jute or gombo hemp, and being diluted with water to jute or gombo hemp weight 16 times, the pH value of regulating dilution back solution with acetic acid and sodium bicarbonate is 4.5, is warming up to 35 ℃, with the laccase aqueous solution after the dilution jute or gombo hemp are flooded, kept 90 minutes; Then jute or gombo hemp are taken out from solution and bank up carrying out the synergy processing of banking up, synergy time of handling of banking up is 6 hours; Then jute or gombo hemp water are cleaned;
Jute after will washing then or gombo hemp place 35 times of pectase aqueous solution to jute or gombo hemp weight, and the weight of described pectase is 2.5% of jute or gombo hemp, are 7.0 with the pH value of sodium bicarbonate regulator solution, keep 110 minutes at 70 ℃;
Then with jute or gombo hemp takes out from solution and with the pH value be 4.0, temperature is that 85 ℃ hot water cleans, handle to carry out enzyme deactivation, promptly obtain come unstuck after jute or gombo hemp fiber, the clearance of pectin and lignin is as shown in table 1 in jute after resulting the coming unstuck or the gombo hemp fiber.
Jute after above-mentioned the coming unstuck or gombo hemp fiber are carried out bleaching, strike the jute or the gombo hemp fiber product that can obtain having better spinning property after fiber crops are handled, clean, dewater, dry by prior art.
Embodiment 9
To unpack by jute or gombo hemp that market is buied, be divided into the wisp one by one that is about about 0.5 kilogram; Get weight and be 2.0% laccase of jute or gombo hemp, and be diluted with water to 30 times of jute or gombo hemp weight, jute or gombo hemp are flooded with the laccase aqueous solution after the dilution;
The pH value of regulating dilution back solution with acetic acid and sodium bicarbonate is 3.0, is warming up to 45 ℃, keeps water cleaning after 100 minutes;
Jute after will washing then or gombo hemp place 16 times of pectase aqueous solution to jute or gombo hemp weight, and the weight of described pectase is 2.0% of jute or gombo hemp, are 9.0 with the pH value of sodium bicarbonate regulator solution, are warming up to 55 ℃ and keep 120 minutes;
Then with jute or gombo hemp takes out from solution and with the pH value be 3.5, temperature is that 75 ℃ hot water cleans, handle to carry out enzyme deactivation, promptly obtain come unstuck after jute or gombo hemp fiber, the clearance of pectin and lignin is as shown in table 1 in jute after resulting the coming unstuck or the gombo hemp fiber.
Jute after above-mentioned the coming unstuck or gombo hemp fiber are carried out bleaching, strike the jute or the gombo hemp fiber product that can obtain having better spinning property after fiber crops are handled, clean, dewater, dry by prior art.
Pectase and laccase used in the foregoing description are respectively pectase (Bioprep) and the laccase of being produced by Denmark Novozymes Company (Denilite).
Table 1 has provided the clearance of pectin and lignin in jute after resulting the coming unstuck among each embodiment or the gombo hemp fiber.
Table 1
| Embodiment | |||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | |
| The pectin clearance | 86％ | 92％ | 92％ | 91％ | 95％ | 96％ | 95％ | 92％ | 90％ |
| Lignin removing rate | 78％ | 80％ | 79％ | 80％ | 86％ | 84％ | 80％ | 81％ | 78％ |
Obviously, the foregoing description only is the example that provides for clearly illustrating, they are not to be limitation of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change must fall into protection scope of the present invention.
Claims (10)
1. the enzymatic degumming method of jute or gombo hemp is characterized in that, may further comprise the steps:
A. jute or the gombo hemp aqueous solution with laccase is flooded, the weight ratio of the described laccase aqueous solution and jute or gombo hemp is 12: 1-40: 1, and described laccase pH value of aqueous solution is 3.0-6.5, temperature is 35 ℃-65 ℃, keeps 20-120 minute;
B. jute or gombo hemp after handling through the laccase aqueous solution are washed;
C. jute after will washing or gombo hemp flood with the aqueous solution of pectase, the weight ratio of the described pectase aqueous solution and jute or gombo hemp is 12: 1-40: 1, described pectase pH value of aqueous solution is 7.0-11.0, and temperature is 40 ℃-70 ℃, keeps 20-120 minute;
D. jute after handling through described enzyme or gombo hemp are carried out the enzyme deactivation processing.
2. method according to claim 1 is characterized in that, also is included in described steps d and carries out the step that synergy is banked up and handled before.
3. method according to claim 1 is characterized in that, also is included in described step b and carries out the step that synergy is banked up and handled before.
4. according to claim 2 or 3 described methods, it is characterized in that described synergy time of handling of banking up is 6-24 hour.
5. according to each described method among the claim 1-3, it is characterized in that the enzyme deactivation in the described steps d is treated to the high temperature washing or regulates the pH value and carry out enzyme deactivation processing, perhaps both combinations.
6. according to each described method among the claim 1-3, it is characterized in that the weight ratio of described pectase or lacquer plum and jute or gombo hemp is 0.5: 100-5: 100.
7. method according to claim 5 is characterized in that, the temperature of water is more than 75 ℃ when carrying out the washing of described high temperature; PH value when adjusting pH value is carried out the enzyme deactivation processing is below 4.0.
8. according to each described method among the claim 1-3, it is characterized in that, also be included in described step a and before jute or gombo hemp carried out pretreated step.
9. method according to claim 8 is characterized in that, described preliminary treatment is one or more the combination in water-bath, acid bath or the hydrogen peroxide dipping.
10. method according to claim 9 is characterized in that, the temperature of described water-bath is 30 ℃ to 100 ℃; Use sulfuric acid or acetic acid during described acid bath.
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|---|---|---|---|
| CNA2007101225943A CN101122050A (en) | 2007-09-27 | 2007-09-27 | Enzymatic degumming method for jute or ambari hemp |
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| CNA2007101225943A CN101122050A (en) | 2007-09-27 | 2007-09-27 | Enzymatic degumming method for jute or ambari hemp |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102560694A (en) * | 2011-11-28 | 2012-07-11 | 江苏紫荆花纺织科技股份有限公司 | Bio-enzyme chemical degumming method for jute fiber |
| CN102560693A (en) * | 2011-11-28 | 2012-07-11 | 江苏紫荆花纺织科技股份有限公司 | Method for chemical degumming of jute fiber using compound enzyme |
| CN102758378A (en) * | 2011-04-28 | 2012-10-31 | 徐奎元 | Method for transforming and recycling old cotton |
| CN102086533B (en) * | 2009-12-04 | 2013-04-24 | 江苏紫荆花纺织科技股份有限公司 | Pretreatment process of jute or red ramie |
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2007
- 2007-09-27 CN CNA2007101225943A patent/CN101122050A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086533B (en) * | 2009-12-04 | 2013-04-24 | 江苏紫荆花纺织科技股份有限公司 | Pretreatment process of jute or red ramie |
| CN102758378A (en) * | 2011-04-28 | 2012-10-31 | 徐奎元 | Method for transforming and recycling old cotton |
| CN102758378B (en) * | 2011-04-28 | 2015-09-09 | 徐奎元 | A kind of method of old cotton transformation regeneration |
| CN102560694A (en) * | 2011-11-28 | 2012-07-11 | 江苏紫荆花纺织科技股份有限公司 | Bio-enzyme chemical degumming method for jute fiber |
| CN102560693A (en) * | 2011-11-28 | 2012-07-11 | 江苏紫荆花纺织科技股份有限公司 | Method for chemical degumming of jute fiber using compound enzyme |
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