CN100430533C - Natural plant fibre extraction by alkali oxidation - Google Patents
Natural plant fibre extraction by alkali oxidation Download PDFInfo
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- CN100430533C CN100430533C CNB2006100423459A CN200610042345A CN100430533C CN 100430533 C CN100430533 C CN 100430533C CN B2006100423459 A CNB2006100423459 A CN B2006100423459A CN 200610042345 A CN200610042345 A CN 200610042345A CN 100430533 C CN100430533 C CN 100430533C
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Abstract
The present invention provides a method of extracting natural plant fibres by an alkali oxidation method, which is characterized in that the method has following technological processes for extracting plant fibres: using the natural plant fibres as raw materials, presoaking in acid, washing in water, executing alkali-oxygen one bath process, striking fibres, washing in the water, washing in the acid, washing in the water, dehydrating, shaking the fibres, feeding oil, dehydrating, airing or baking. After the plant fibres is processed through the process steps of pickling, alkali-oxygen one bath, fibre striking, etc., a special technology of feeding assistants Mg <2+>, strong alkaline bath hydrogen peroxide stabilizers, chemical agents and chemical assistants in batches is adopted to guarantee that cellulose is steadied and protected effectively, and the nucleophilic oxidation reaction of hydrogen peroxide to lignine can reach the best condition and effect. The plant fibres extracted by the present invention has the advantages of low residual lignin content, low residual gum content, short technological process, reduced processing cost and reduced consumption. The present invention is a method which can be used for extracting high-quality plant fibres for spinning, weaving and tailoring in an industrial production mode.
Description
Technical field
The present invention relates to technical field of textile processing, is a kind of alkali oxygen method natural plant fibre extracting method specifically.
Background technology
The method of the extraction that natural plant fibre is commonly used has at present: biological extraction method and chemical extraction method.Wherein the chemical extraction technological process is long, cost is high, consumption is big; And the enzyme activity of biological extraction bacterial classification is high not enough at present, and the string after microorganism is extracted also contains more colloid, especially the fiber quality instability after the biological extraction.How to guarantee to reduce cost again when string extracts quality, reduce consuming, become the urgent at present technical problem that solves.
Summary of the invention
The objective of the invention is the shortcoming that exists in the extracting method at existing natural plant fibre, and a kind of extracting method of alkali oxygen method natural plant fibre is provided, can guarantee that string extracts quality, can reduce cost again, reduce consuming, and can realize suitability for industrialized production.
The objective of the invention is to be achieved through the following technical solutions: a kind of alkali oxygen method natural plant fibre preparation method is characterized in that string extraction process flow process is: bluish dogbane or ramie or Chinese alpine rush fibrous raw material → pre-pickling → washing → alkali oxygen bathe → is beaten fibre → washing → pickling → wash → dewater → tremble fibre → oil supply → dewater → dry or dry
The major parameter of above-mentioned string extraction process is as follows:
(1) pre-pickling: for removing pectin, hemicellulose, ash content, through pre-pickling, sulfuric acid concentration is that 0.8-1.2ml/L, temperature are 40-50 ℃, 50-70 minute pickling time, bath raio 1: 18-25 with string.
(2) washing: extract back water flushing string, dissolved matter on the fiber and remaining acid solution removed, wash to pH value be 6.5-7.5.
(3) alkaline oxygen bath: NaOH 6-10g/L, H
2O
26-8g/L, hydrogen peroxide bleaching stabilizer 1.8-2.4g/L, magnesium sulfate consumption 0.08-0.12%, processing time 120-150 minute, 100 ℃ boiled and boil bath raio 1: 18-25.
(4) beat fibre: though string colloid behind alkaline oxygen bath is easy to remove, but still have major part to be bonded on the fiber, the hydro-peening effect that utilizes wooden stick or mechanical mallet to hit with waterpower can make fiber looser, pure white the removings such as colloid that destroyed but still stick to by alkali lye on the fiber.
(5) pickling: pickling can in and residual alkali lye on the string, improve the whiteness of fiber.The concentration of sulfuric acid is 0.8-1.2ml/L, and the pickling time is 3-8 minute.
(6) oil supply: amido organosilicon softener 4-6ml/L, 40-50 ℃, time 50-70 divides kind, bath raio 1: 18-22.
In above-mentioned string extracting method, with plant fiber material through pickling, alkaline oxygen bath, beat in the intensive processing of fine operation, adopt auxiliary agent Mg
2+, highly basic bathes hydrogen peroxide stabilizer, reach effectively and stablize, protect cellulosic purpose;
The technology that adopts chemistry in batches to throw in agent, auxiliary agent has guaranteed that hydrogen peroxide reaches optimum condition and effect to the nucleophilic oxidation reaction of lignin.
The present invention compared with prior art has many advantages and good effect:
1, the present invention is the method for extracting with the fiber that a kind of alkaline oxygen bath chemical process and mechanical treatment combine, be characterized in that technological process is short, cost is low, the string residual gum content, the content of lignin that extract are low, are fit to spin middle and high yarn, do high-grade fabric.The natural plant fibre fabric that the inventive method is extracted can need not the refining and bleaching operation in the back arrangement, has both shortened finishing process, has improved the stability of product quality again.
2, the present invention passes through string pickling, alkaline oxygen bath, beats in the intensive processing of operations such as fibre, adopts auxiliary agent Mg
2+, highly basic bathes hydrogen peroxide stabilizer, and the special processes in batches thrown in agent, auxiliary agent of chemistry, guaranteed effectively stable, protect cellulose, and hydrogen peroxide reaches optimum condition and effect to the nucleophilic oxidation reaction of lignin.
The specific embodiment
Embodiment 1: bluish dogbane raw ramie → pickling (40 ℃ of temperature, H
2SO
41ml/L, bath raio 1: 20,1 hour time) → washing → alkaline oxygen bath (NaOH9.5g/L, H
2O
27.5g/L, hydrogen peroxide bleaching stabilizer 2.3g/L, magnesium sulfate consumption 0.1%, 100 ℃ of temperature, 120 minutes time, bath raio 1: 20) → fibre → washing → pickling (normal temperature, H beaten
2SO
41ml/L, 5 minutes time, bath raio 1: 20) to neutrality → washing → dehydration → oil supply (5ml/L, 50 ℃ of temperature, 1 hour time, bath raio 1: 20) → washing → dehydration → apocynum fibre.
Embodiment 2: ramie raw ramie → pickling (40 ℃ of temperature, H
2SO
41ml/L, bath raio 1: 20,1 hour time) → washing → alkaline oxygen bath (NaOH9g/L, H
2O
27g/L, hydrogen peroxide bleaching stabilizer 2.1g/L, magnesium sulfate consumption 0.1%, 100 ℃ of temperature, 120 minutes, bath raio 1: 20) → fibre → washing → pickling (normal temperature, H beaten
2SO
41ml/L, 5 minutes time, bath raio 1: 20) to neutrality → washing → dehydration → oil supply (5ml/L, 50 ℃ of temperature, 1 hour time, bath raio 1: 20) → washing → dehydration → ramee.
Embodiment 3: Chinese alpine rush → pickling (40 ℃ of temperature, H
2SO
41ml/L, bath raio 1: 20,1 hour time) → washing → alkaline oxygen bath (NaOH 8g/L, H
2O
26g/L, hydrogen peroxide bleaching stabilizer 1.8g/L, magnesium sulfate consumption 0.1%, 100 ℃ of temperature, 120 minutes time, bath raio 1: 20) → fibre → washing → pickling (normal temperature, H beaten
2SO
41ml/L, 5 minutes time, bath raio 1: 20) to neutrality → washing → dehydration → oil supply (5ml/L, 50 ℃ of temperature, 1 hour time, bath raio 1: 20) → washing → dehydration → weaving Chinese alpine rush fiber.
Certainly, above-mentioned explanation is not to be limitation of the present invention, and the present invention also is not limited to above-mentioned giving an example; those skilled in the art; in essential scope of the present invention, the variation of making, remodeling, interpolation or replacement all should belong to protection scope of the present invention.
Claims (1)
1, a kind of alkali oxygen method natural plant fibre extracting method is characterized in that string extraction process flow process is: bluish dogbane or ramie or Chinese alpine rush fibrous raw material → pre-pickling → washing → alkaline oxygen bath → beat fibre → washing → pickling → wash → dewater → tremble fibre → oil supply → dewater → dry or dry
Above-mentioned string extraction process major parameter is as follows:
(1) pre-pickling: for removing pectin, hemicellulose, ash content, through pre-pickling, sulfuric acid concentration is 0.8-1.2ml/L with string, and temperature is 40-50 ℃, 50-70 minute pickling time, bath raio 1: 18-25;
(2) washing: extract back water flushing string, dissolved matter on the fiber and remaining acid solution removed, wash to pH value be 6.5-7.5;
(3) alkaline oxygen bath: NaOH 6-10g/L, H
2O
26-8g/L, hydrogen peroxide bleaching stabilizer 1.8-2.4g/L, magnesium sulfate consumption 0.08-0.12%, processing time 120-150 minute, 100 ℃ boiled and boil bath raio 1: 18-25;
(4) beat fibre: utilizing wooden stick or mechanical mallet to hit with the hydro-peening effect of waterpower can remove the colloid of being destroyed but still sticking to by alkali lye on the fiber, make fiber looser, pure white;
(5) pickling: the concentration of sulfuric acid is 0.8-1.2ml/L, and the pickling time is 3-8 minute;
(6) oil supply: amido organosilicon softener 4-6ml/L, 40-50 ℃, time 50-70 minute, bath raio 1: 18-22.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100423459A CN100430533C (en) | 2006-01-23 | 2006-01-23 | Natural plant fibre extraction by alkali oxidation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100423459A CN100430533C (en) | 2006-01-23 | 2006-01-23 | Natural plant fibre extraction by alkali oxidation |
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| Publication Number | Publication Date |
|---|---|
| CN1818157A CN1818157A (en) | 2006-08-16 |
| CN100430533C true CN100430533C (en) | 2008-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100423459A Expired - Fee Related CN100430533C (en) | 2006-01-23 | 2006-01-23 | Natural plant fibre extraction by alkali oxidation |
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| CN (1) | CN100430533C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748494B (en) * | 2008-12-04 | 2011-09-21 | 常州纺织服装职业技术学院 | Paederia scandens fiber extraction process |
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| CN101187068B (en) * | 2007-02-15 | 2010-09-29 | 吴苏明 | Japanese banana fiber and its preparation method and uses |
| CN101165230B (en) * | 2007-06-07 | 2010-08-18 | 浙江大学 | Method for preparing cotton triangle yellow grass fibre for weaving |
| CN101307502B (en) * | 2008-05-21 | 2010-12-15 | 东华大学 | Pineapple leaf fiber preparation method |
| CN101294309B (en) * | 2008-05-26 | 2010-08-11 | 东华大学 | Process for producing sisal fiber |
| CN102168316B (en) * | 2011-01-25 | 2012-11-21 | 武汉纺织大学 | Method for removing residual gum from ramie |
| CN102220646A (en) * | 2011-05-12 | 2011-10-19 | 青岛大学 | Method for preparing abelmoschus manihot fibers for spinning |
| CN103774245B (en) * | 2014-02-25 | 2016-04-27 | 武汉纺织大学 | Ramie chain type continuous is without the useless point method for fiber that comes unstuck |
| CN105386351B (en) * | 2015-10-09 | 2018-08-10 | 中林联盟（北京）科技发展有限公司 | A kind of fast-growing willow pulping process |
| CN105220242A (en) * | 2015-11-09 | 2016-01-06 | 长兴业美纺织有限公司 | Chinese alpine rush fiber is used in weaving of a kind of softness |
| CN105506755A (en) * | 2016-02-15 | 2016-04-20 | 张民贵 | Process for extracting fast-growing willow bast fibers |
| CN106995938A (en) * | 2017-03-29 | 2017-08-01 | 深圳职业技术学院 | A kind of string, its preparation method and a kind of textile cloth |
| CN108530824A (en) * | 2018-04-13 | 2018-09-14 | 武汉工程大学 | A kind of preparation method of plant fiber toughening metlbond foam |
| CN110670146A (en) * | 2019-11-08 | 2020-01-10 | 西安工程大学 | Method for preparing lotus stem fibers |
| CN113279069A (en) * | 2021-06-07 | 2021-08-20 | 海南瑞民农业科技有限公司 | Organic fiber material prepared from coconut fallen leaves |
| CN115141356B (en) * | 2022-07-13 | 2023-11-28 | 广东睿鹏材料科学有限公司 | Lignin-based epoxy resin coating based on pulping black liquor and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1629367A (en) * | 2003-12-20 | 2005-06-22 | 张利中 | Ramee rapid glue-removing production process |
| CN1718907A (en) * | 2005-08-04 | 2006-01-11 | 东华大学 | Chemical softening technology of flax |
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2006
- 2006-01-23 CN CNB2006100423459A patent/CN100430533C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1629367A (en) * | 2003-12-20 | 2005-06-22 | 张利中 | Ramee rapid glue-removing production process |
| CN1718907A (en) * | 2005-08-04 | 2006-01-11 | 东华大学 | Chemical softening technology of flax |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748494B (en) * | 2008-12-04 | 2011-09-21 | 常州纺织服装职业技术学院 | Paederia scandens fiber extraction process |
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| CN1818157A (en) | 2006-08-16 |
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Assignee: Jiangsu Lixin Textile Co., Ltd. Assignor: Qingdao University Contract record no.: 2010370000331 Denomination of invention: Natural plant fibre extraction by alkali oxidation Granted publication date: 20081105 License type: Exclusive License Open date: 20060816 Record date: 20100608 |
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