CN103484949A - Degumming process for mulberry fibers - Google Patents
Degumming process for mulberry fibers Download PDFInfo
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- CN103484949A CN103484949A CN201310410796.3A CN201310410796A CN103484949A CN 103484949 A CN103484949 A CN 103484949A CN 201310410796 A CN201310410796 A CN 201310410796A CN 103484949 A CN103484949 A CN 103484949A
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- washing
- degumming
- pickling
- mulberry fibre
- mulberry
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Abstract
The invention relates to a degumming process for mulberry fibers. The degumming process is characterized by comprising the following process steps: preparing a test sample; immersing the test sample in an acid; washing with water; boiling for the first time; washing with the water; boiling for the second time; washing with the water; stamping; washing with the acid; washing with the water; dehydrating; feeding oil; dehydrating; shaking to be loosened; drying. The degumming process for the mulberry fibers has the beneficial effects that the degumming efficiency is high; damages to fibers are small; the performance of the fibers is high and the fiber yield is high; the use amounts of acids and alkalis are less; the pollution is small and the energy consumption and water consumption are low; the working environment is safe; the requirements of modern green and environmental protection are met.
Description
Technical field
The invention belongs to the textile fabric preparing technical field, be specifically related to a kind of degumming tech of mulberry fibre.
Background technology
Contain multiple fiber in the mulberry skin, the composition such as fat meals matter wherein, hemicellulose, lignin and some bast fiber content are similar, and pectic substance content is far away higher than other bast fiber.Hence one can see that, and the chemical Degumming main attack of mulberry fibre is to liking the pectic substance composition.
The quality of mulberry fibre, depend primarily on the degree of coming unstuck.Degumming method commonly used has at present: natural degumming method, chemical degumming law and biological degumming method.The nature degumming method is affected by environment larger, the length that expends time in, and production efficiency is low, difficult quality guarantee.The biological degumming method is a kind of very concerned in recent years method, because it can save energy consumption and environmental contamination reduction, so very wide prospect is arranged.But just produce mulberry fibre, mulberry fibre belongs to a kind of novel plant bast fiber, if adopt the method for biological degumming, the screening of bacterial classification, cultivate, come unstuck etc. may need the cycle of growing, and does not have related data to compare simultaneously.The usually time of chemical Degumming is short, and working (machining) efficiency is high, therefore, becomes Degumming method commonly used.
Summary of the invention
Technical problem to be solved by this invention is, overcomes above-mentioned the deficiencies in the prior art, and a kind of degumming tech of mulberry fibre of environment-friendly high-efficiency is provided.
A kind of degumming tech of mulberry fibre, its processing step is as follows:
Sample is prepared, and---------one boils, and------two boil, and------beating fine,------------oil supply---dry by dehydration---shaking up---in dehydration in washing in pickling in washing in washing in washing in pickling.
In described pickling step: sulfuric acid concentration 5g/L, bath raio 1:15,45 ℃ of heating water baths, time 60min, normal pressure;
Described one boils in step: NaOH 10g/L, tertiary sodium phosphate consumption 5%, normal pressure, 100 ℃ of temperature, bath raio 1:20, time 60min;
Described two boil in step: NaOH 12g～18g/L, tertiary sodium phosphate consumption 4%～7%, ammonium oxalate 2g/L, normal pressure, 100 ℃ of temperature, time 60min～120min;
In described acid pickling step: sulfuric acid concentration 2g/L, bath raio 1:20, normal temperature, normal pressure, time 5min;
In described oil supply step: emulsion, concentration 1%, bath raio 1:10.
The beneficial effect that the present invention has is: this degumming tech efficiency of coming unstuck is high, and little to fibre damage, fibre property is high, and the fiber row yielding is high, and the consumption of acid, buck is few, pollutes littlely, and energy consumption, water consumption are low, and operating environment safety, meet the requirement of Modern Green environmental protection.
The specific embodiment
In order further to understand advantage of the present invention, below by specific embodiment, effect of the present invention is described.
A kind of degumming tech of mulberry fibre, its processing step is as follows:
Sample is prepared, and---------one boils, and------two boil, and------beating fine,------------oil supply---dry by dehydration---shaking up---in dehydration in washing in pickling in washing in washing in washing in pickling.
Its each step process is specially:
(1) sample is prepared
Dead skin in the mulberry skin, do not remove clean tiny branch and mulberry leaf that some are not removed etc. and all will remove as impurity, second-rate bast is rejected.Be beneficial to the carrying out of coming unstuck and the raising of fiber quality.
(2) pickling
Carry out the pickling processing before soda boiling, can remove a part of colloid.The colloid that another part is not directly removed also likely is hydrolyzed into the material that the molecule amount is lower, it is become when soda boiling and easily remove.Carry out pickling before boiling, not only can reduce residual gum content, can also remove lignin simultaneously.But, when carrying out pickling, cellulose also easily is acid hydrolysis, but in bast, colloid is enclosed in the surface of fiber, and cellulose is played to certain protective effect.So under suitable condition, pickling can be hydrolyzed a part of colloid and be unlikely to damage cellulose.The process conditions of pickling are: sulfuric acid concentration 5g/L, bath raio 1:15,45 ℃ of heating water baths, time 60min, normal pressure.
(3) washing
All to pass through washing step after pickling, soda boiling and pickling.Washing washes away with clear water alkali lye or the acid solution remained in pickling, soda boiling and acid cleaning process on mulberry fibre exactly, makes the pH value of mulberry fibre reach neutral, reduces the impact on next procedure as far as possible.The washing step boiled after boiling with two at one of mulberry fibre is all the first hot water wash processing method of cold wash again.After soda boiling, a colloid part of decomposing out in bast is dissolved in kiering liquid, also has the part colloid to be attached on fiber surface, first washes the colloid that can remove as much as possible fiber surface with hot water, and cold water may make this part colloid coagulate at fiber surface.Therefore, first hot water wash can the reduce residual gum content in cold wash.
(4) soda boiling
The alkali lye kiering can be removed most colloid and lignin composition, can impel between fiber and disperse, and improves fineness and the pliability of fiber simultaneously.Technique of the present invention soda boiling at twice, wherein process conditions of boiling are: NaOH 10g/L, tertiary sodium phosphate consumption 5%, normal pressure, 100 ℃ of temperature, bath raio 1:20, time 60min; Two process conditions of boiling are: NaOH 12g～18g/L, tertiary sodium phosphate consumption 4%～7%, ammonium oxalate 2g/L, normal pressure, 100 ℃ of temperature, time 60min～120min.
(5) beat fibre
After the kiering operation, the overwhelming majority of colloid is dissolved, but some is attached on fiber, and fiber can not be separated into filament by sticky being linked togather.Therefore utilize to hit and mix washing effect, remove residual glue impurity on fiber, reduce cull, and make fiber loose.
(6) pickling
Pickling be by beat mulberry fibre after fibre in acid bath rinsing with in and residual alkali lye on fiber, prevent that fiber from producing damage under the long duration of action of alkali, further remove colloid simultaneously, and can remove the coloring matter of fibers adsorption, make fiber colour pure white loose.The process conditions of pickling are: sulfuric acid concentration 2g/L, bath raio 1:20, normal temperature, normal pressure, time 5min.
(7) dehydration: the mulberry fibre of the mulberry fibre after the 4th washing and process oil supply technique is put into respectively to the centrifuge drying and slough moisture.
(8) oil supply
Mulberry fibre stands the chemical treatment repeatedly of the medicaments such as soda acid and other mechanism in the chemical Degumming process, and the fatty wax on its surface also is removed.Simultaneously, after coming unstuck, the mulberry fibre of drying does not also contain a small amount of cull, if by its convection drying, fiber can mutually and be tied and become crisp hard.So the mulberry fibre after coming unstuck must carry out to oil processing before drying.The process conditions of oil supply are: emulsion, concentration 1%, bath raio 1:10.
(9) shake up, dry.
In sum, above embodiment is only in order to illustrate the present invention and unrestricted technical scheme described in the invention; Therefore, although this specification has been described in detail the present invention with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can modify or be equal to replacement the present invention; And all do not break away from technical scheme and the improvement thereof of the spirit and scope of the present invention, it all should be encompassed in claim scope of the present invention.
Claims (6)
1. the degumming tech of a mulberry fibre, is characterized in that, processing step is as follows:
Sample is prepared, and---------one boils, and------two boil, and------beating fine,------------oil supply---dry by dehydration---shaking up---in dehydration in washing in pickling in washing in washing in washing in pickling.
2. the degumming tech of mulberry fibre according to claim 1, is characterized in that, in described pickling step: sulfuric acid concentration 5g/L, bath raio 1:15,45 ℃ of heating water baths, time 60min, normal pressure.
3. the degumming tech of mulberry fibre according to claim 1, is characterized in that, described one boils in step: NaOH 10g/L, tertiary sodium phosphate consumption 5%, normal pressure, 100 ℃ of temperature, bath raio 1:20, time 60min.
4. the degumming tech of mulberry fibre according to claim 1, is characterized in that, described two boil in step: NaOH 12g～18g/L, tertiary sodium phosphate consumption 4%～7%, ammonium oxalate 2g/L, normal pressure, 100 ℃ of temperature, time 60min～120min.
5. the degumming tech of mulberry fibre according to claim 1, is characterized in that, in described acid pickling step: sulfuric acid concentration 2g/L, bath raio 1:20, normal temperature, normal pressure, time 5min.
6. the degumming tech of mulberry fibre according to claim 1, is characterized in that, in described oil supply step: emulsion, concentration 1%, bath raio 1:10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310410796.3A CN103484949A (en) | 2013-09-11 | 2013-09-11 | Degumming process for mulberry fibers |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310410796.3A CN103484949A (en) | 2013-09-11 | 2013-09-11 | Degumming process for mulberry fibers |
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| CN103484949A true CN103484949A (en) | 2014-01-01 |
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| CN201310410796.3A Pending CN103484949A (en) | 2013-09-11 | 2013-09-11 | Degumming process for mulberry fibers |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032380A (en) * | 2014-06-30 | 2014-09-10 | 滁州惠智科技服务有限公司 | Preparation method of mulberry bark fibers |
| CN104630908A (en) * | 2015-02-15 | 2015-05-20 | 东华大学 | Method for preparing flax fiber by combined process of mucor circinelloides DK1 strain and hydrogen peroxide |
| CN105256626A (en) * | 2015-10-27 | 2016-01-20 | 北京印刷学院 | Mulberry bark chemi-mechanical pulp as well as preparation method and application thereof |
| CN107523885A (en) * | 2017-07-06 | 2017-12-29 | 温美群 | A kind of mulberry tree hide fiber extracting method |
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| CN1546751A (en) * | 2003-12-10 | 2004-11-17 | 四川省丝绸进出口公司 | Degumming preparation of mulberry bark fiber |
| CN101435111A (en) * | 2008-10-23 | 2009-05-20 | 四川省丝绸进出口集团有限公司 | Automation production process for degumming mulberry bark |
| CN101638811A (en) * | 2009-08-31 | 2010-02-03 | 盐城纺织职业技术学院 | Degumming technology of mulberry bark |
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2013
- 2013-09-11 CN CN201310410796.3A patent/CN103484949A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1546751A (en) * | 2003-12-10 | 2004-11-17 | 四川省丝绸进出口公司 | Degumming preparation of mulberry bark fiber |
| CN101435111A (en) * | 2008-10-23 | 2009-05-20 | 四川省丝绸进出口集团有限公司 | Automation production process for degumming mulberry bark |
| CN101638811A (en) * | 2009-08-31 | 2010-02-03 | 盐城纺织职业技术学院 | Degumming technology of mulberry bark |
Non-Patent Citations (1)
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| 张之亮: "桑皮纤维化学脱胶的工艺流程设计", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032380A (en) * | 2014-06-30 | 2014-09-10 | 滁州惠智科技服务有限公司 | Preparation method of mulberry bark fibers |
| CN104032380B (en) * | 2014-06-30 | 2016-10-26 | 宁夏康诚机电产品设计有限公司 | A kind of preparation method of mulberry fibre |
| CN104630908A (en) * | 2015-02-15 | 2015-05-20 | 东华大学 | Method for preparing flax fiber by combined process of mucor circinelloides DK1 strain and hydrogen peroxide |
| CN105256626A (en) * | 2015-10-27 | 2016-01-20 | 北京印刷学院 | Mulberry bark chemi-mechanical pulp as well as preparation method and application thereof |
| CN105256626B (en) * | 2015-10-27 | 2017-08-08 | 北京印刷学院 | A kind of mulberry skin chemi-mechanical pulp and preparation method thereof and purposes |
| CN107523885A (en) * | 2017-07-06 | 2017-12-29 | 温美群 | A kind of mulberry tree hide fiber extracting method |
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