CN100336946C - Boiling-off method for bast fibre and bast fibre produced by the same - Google Patents
Boiling-off method for bast fibre and bast fibre produced by the same Download PDFInfo
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- CN100336946C CN100336946C CNB2005101149264A CN200510114926A CN100336946C CN 100336946 C CN100336946 C CN 100336946C CN B2005101149264 A CNB2005101149264 A CN B2005101149264A CN 200510114926 A CN200510114926 A CN 200510114926A CN 100336946 C CN100336946 C CN 100336946C
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- flax fibre
- fibrilia
- degumming
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Abstract
The present invention discloses a degumming method for fibrilia and fibrilia produced in the method. In the method, fibrilia is soaked in water for 40 to 80 minutes for causing the water content of the fibrilia to be 60 to 100%; afterwards, the aqueous fibrilia is put in a gas bursting tank; steam bursting is carried out to the aqueous fibrilia under the conditions that pressure is 1.3 to 1.7MPa, and pressure dwell time is 3 to 8 minutes; the fibrilia is taken out and washed by water and is dried. Because the method of the present invention uses steam bursting degumming, the method of the present invention not only can carry out moderate degumming, but also can avoid pollution, greatly enhances degumming rate and fiber dividing degree without the damage of fibers, greatly enhances the spinnability of hemp and greatly saves 1/3 of the cost. The method of the present invention can develop pure muslin yarn spinning with more than 36 metric counts, product high-grade garment materials by the blended spinning of pure muslin yarn, wool, wires and terylene, prepare degradable fiber boards, fructose, alcohol and fertilizers by using side products and realize industrial chain economy.
Description
One, technical field
The present invention relates to a kind of Degumming method of bast fiber, more particularly relate to a kind of preparation method of spinnability flax fibre.
Two, background technology
China is the abundantest country of bast-fibre resource, after the world starts " gunny products heat " from early 1980s, indicates that the flax spinning industrial development enters the prosperous phase.Production, processing and the sale of flax fibre and goods thereof at present occupied critical role in Chinese national economy.Family surplus China's crudefiber crop weaving, printing and dyeing enterprise have reached 800.Fixed assets be worth to break through 3,000,000,000 yuan, to the total demand of bast-fibre above 1,000,000 tons.
Fiber crops (Cannabis sativa L.) are annual crop, once are human important fiber, oil plant, cereal crops, originate from China or Central Asia other countries.Propagate into countries and regions such as Europe, South America, Africa then gradually, propagated into Chile in 1545, U.S. hemp is to obtain with the arrival of new chum promoting.Fiber crops mainly are based on fiber in the utilization of China.Traditional to utilize mode mainly be rope making, make gunnysack and knit burlap.Fiber crops are compared with ramie, flax, and its gum level is very high, up to more than 40%, therefore, has increased the difficulty of retting.The quality of its degumming degree can directly influence hemp spinning yarn, weave with the dyeing and finishing post processing and process.Particularly flax spinning develops into today, and market has turned to fineness comfortable by original rough novelty to the requirement of its product, and this had just proposed bigger challenge to original just very imperfect retting technology.Traditional Degumming method of fiber crops is that dew comes unstuck and bubble comes unstuck, and the bubble degumming effect is good, but has brought more serious pollution to water body.The Iowa,U.S.A land grant college had once been studied the fast degumming under the numb controlled condition, can finish retting in 36 hours through handling.Sweden just developed cover fiber crops degumming device continuously in 1970, and this device can be handled 150 tons of fiber crops every day, produces 50 tons of flax fibres, came unstuck and avoided pollution but all these methods all are difficult to realization " appropriateness ".And the research of microbial degumming has abroad just been carried out since the fifties, the domestic research of then just beginning to have in the seventies.Though numb skin is carried out microbial degumming comparatively significant progress has been arranged, it is still and can not satisfies industrial production requirement, and it is low to exist degumming rate, and the problem that processing cost is high is badly in need of having new technological break-through.
Three, summary of the invention
One of purpose of the present invention provides a kind of Degumming method of flax fibre.
Two of purpose of the present invention provides a kind of flax fibre with the preparation of vapour exploding degumming method.
These and other purpose of the present invention will and be described and further set forth by following detailed description.
The preparation method's of flax fibre of the present invention core technology is to adopt vapour exploding degumming technology, and this technology is relatively more effective and cost is low, pollution-free.
The Degumming method of flax fibre of the present invention is that flax fibre was soaked in water 40-80 minute, and making its moisture is 60-100%, then moisture flax fibre being put into steam-explosion jar, is 1.3-1.7Mpa at pressure, and the dwell time is that vapour is quick-fried under 3-8 minute condition, take out washing, oven dry.
Further, the Degumming method of flax fibre of the present invention is that flax fibre was soaked in water 50-70 minute, making its moisture is 70-100%, then moisture flax fibre is put into steam-explosion jar, is 1.4-1.7Mpa at pressure, dwell time is that vapour is quick-fried under 4-8 minute condition, takes out washing, oven dry.
Be preferably, the Degumming method of flax fibre of the present invention is that flax fibre was soaked in water 55-60 minute, making its moisture is 90-100%, then moisture flax fibre is put into steam-explosion jar, is 1.4-1.7Mpa at pressure, dwell time is that vapour is quick-fried under 5-6 minute condition, takes out washing, oven dry.
In the Degumming method of flax fibre of the present invention, behind the former flax fibre process vapour exploding degumming, after combing, bleaching, obtain the spinnability flax fibre.Described flax fibre is hemp, flax, ramie, bluish dogbane, jute, sisal hemp, mestha and other bast fibers.With the prepared flax fibre of the Degumming method of flax fibre of the present invention, fiber is done fracture strength: 1.85-2.48cN/dtex, elongation at break (%) is: 15.8-20.2, ultimate strength CV (%) is: 5.63-15.66, wet breaking strength is: 1.15-2.98cN/dtex.Can spin 36 public above pure hempen fibres, and flax fibre can with various fiber blends, compound and interweave.
In the Degumming method of flax fibre of the present invention, vapour is quick-fried to be divided into two stages: at first, be heat effect under the high-temperature and high-pressure conditions.Absorb high thermal energy through hydrone and each component in the pretreated raw ramie, make hemicellulose be degraded into soluble sugar, the softening and part degraded of lignin simultaneously reduces with the fiber bonding strength, provides optionally mechanical separation for dodging quick-fried process.Secondly, be to dodge quick-fried process to utilize hot vapour of High Temperature High Pressure and the acting in conjunction of high temperature liquid water two media in the raw ramie condensate, the adiabatic expansion process that moment finishes, externally acting makes fiber separation.
In the methods of the invention, behind the raw ramie process vapour exploding degumming, after combing, bleaching, flax fibre can with by various fiber blends, compound, the process technology that interweaves with cotton, viscose glue, wash, polynary blending longitudes and latitudes such as nylon, cashmere, silk interweave, the interleaved sack is washed, washed the bag fiber crops and shows flax containing rate with raising, respin into fiber.
In the preparation method of flax fibre of the present invention, be utilized as the core ecological fiber plate (waste of flax utilization) that can form a complete production network with flax fibre, xylo-oligosaccharide, pectin (flax fibre come unstuck extract), efficient composite organic fertilizer (numb cortex, other broken things).
The Degumming method of flax fibre of the present invention is owing to use the vapour exploding degumming, can appropriateness come unstuck, can avoid again polluting, also save cost 1/3 greatly, and saved the pollution control link, the pollution treatment process is become the production process of biochemical industry product, and green engineering demonstrates fully the Scientific Outlook on Development of recycling economy; Fiber crops are exempted the link that peeling utilizes, and reduce numb agricultural labour cost 1/2 and have overcome the problem of numb seed maturity results and fiber utilization decreased performance, and present technique can be taken in concurrently with seed by fiber, increases the fiber crops farming and takes in 1/3.
Flax fibre of the present invention is the high-grade fibers of pure natural, and the quick-fried technology of vapour can be developed and can spin 36 public above pure dimitys, can be with hair, silk, wash the blended high-grade garment material.Flax fibre and fabric thereof have unique green dress ornament performance, and linen moisture absorption, ventilative, bactericidal, comfortable and easy to wear are particularly suitable for makeing underwear, shoe-pad, socks, sheet etc.Can also adapt to the needs of industries such as electric power, metallurgy, military project, building materials, railway, chemical machinery, communication, traffic according to serial extraordinary industrial and protective clothings such as its property Development and Production heat-resistant fireproof clothes, uvioresistant clothes, antistatic clothes, acid and alkali-resistance clothes, fire protection flame retarding clothes, insulated cold wears.
Four, the specific embodiment
Describe flax fibre preparation method of the present invention and application in detail below in conjunction with specific embodiment; described embodiment is in order better to explain the present invention; rather than to the restriction of claim protection domain of the present invention; all all belong to the scope that the present invention asks for protection based on the modification and the change of basic thought of the present invention.
In the present invention, if not refer in particular to, all parts, amount are the unit of weight based on gross weight, and all raw materials all can be buied from market.
Embodiment 1:
Take by weighing raw ramie 35 gram, soak after 70 minutes in water, making its moisture is 70%, and moisture raw ramie is put into steam-explosion jar, is 15kg (1.4-1.5MPa) by vapour detonation pressure power, and the dwell time is 6 minutes, and to carry out vapour quick-fried.After washing, oven dry, the bleaching, be carded to flax fibre.
Embodiment 2
Take by weighing raw ramie 40 grams, soak after 60 minutes in water, making its moisture is 90%, moisture raw ramie is put into steam-explosion jar, is 15 kilograms (1.4-1.5MPa) by vapour detonation pressure power, and the dwell time is 6 minutes, and to carry out vapour quick-fried, after washing, oven dry, the bleaching, be carded to flax fibre.
Embodiment 3
Take by weighing raw ramie 40 gram, soak after 60 minutes in water, making its moisture is 100%, and moisture raw ramie is put into steam-explosion jar, is 15 kilograms (1.4-1.5MPa) by vapour detonation pressure power, and the dwell time is 5 minutes, and to carry out vapour quick-fried.After washing, oven dry, the bleaching, be carded to flax fibre.
Embodiment 4
Take by weighing raw ramie 45 gram, soak after 70 minutes in water, making its moisture is 100%, and moisture raw ramie is put into steam-explosion jar, is 17 kilograms (1.4-1.5MPa) by vapour detonation pressure power, and the dwell time is 5 minutes, and to carry out vapour quick-fried.After washing, oven dry, the bleaching, be carded to flax fibre.
Embodiment 5
Take by weighing raw ramie 45 gram, soak after 70 minutes in water, making its moisture is 100%, and moisture raw ramie is put into steam-explosion jar, is 16 kilograms (1.4-1.5MPa) by vapour detonation pressure power, and the dwell time is 6 minutes, and to carry out vapour quick-fried.After washing, oven dry, the bleaching, be carded to flax fibre.
Embodiment 6
Take by weighing raw ramie 40 gram, soak after 80 minutes in water, making its moisture is 60%, and moisture raw ramie is put into steam-explosion jar, is 1.3MPa by vapour detonation pressure power, and the dwell time is 8 minutes, and to carry out vapour quick-fried, after washing, oven dry, the bleaching, is carded to flax fibre.Fiber is done fracture strength: 2.48cN/dtex, and elongation at break (%) is: 17.8, ultimate strength CV (%) is: 10.66, wet breaking strength is: 2.15cN/dtex.Can spin 36 public above pure hempen fibres, and flax fibre can with various fiber blends, compound and interweave.
Embodiment 7
Take by weighing raw ramie 45 gram, soak after 40 minutes in water, making its moisture is 100%, and moisture raw ramie is put into steam-explosion jar, is 1.7MPa by vapour detonation pressure power, and the dwell time is 3 minutes, and to carry out vapour quick-fried.After washing, oven dry, the bleaching, be carded to flax fibre.Fiber is done fracture strength: 2.05cN/dtex, and elongation at break (%) is: 19.2, ultimate strength CV (%) is: 8.63, wet breaking strength is: 1.65cN/dtex.Can spin 36 public above pure hempen fibres, and flax fibre can with various fiber blends, compound and interweave.
Claims (4)
1, a kind of preparation method of spinnability flax fibre, comprise the vapour exploding degumming, combing and blanching step, it is characterized in that described vapour exploding degumming step is for to soak flax fibre 40-80 minute in water, making its moisture is 60-100%, then moisture flax fibre is put into steam-explosion jar, at pressure is 1.3-1.7Mpa, dwell time is that vapour is quick-fried under 3-8 minute condition, take out washing, oven dry, the fiber that obtains are done fracture strength and are: 1.85-2.48cN/dtex, and elongation at break (%) is: 15.8-20.2, ultimate strength CV (%) is: 5.63-15.66, wet breaking strength is: 1.15-2.98cN/dtex.
2, the preparation method of spinnability flax fibre according to claim 1, it is characterized in that flax fibre was soaked in water 50-70 minute, making its moisture is 70-100%, then moisture flax fibre is put into steam-explosion jar, at pressure is 1.4-1.7Mpa, dwell time is that vapour is quick-fried under 4-8 minute condition, takes out washing, oven dry.
3, the preparation method of spinnability flax fibre according to claim 1, it is characterized in that flax fibre was soaked in water 55-60 minute, making its moisture is 90-100%, then moisture flax fibre is put into steam-explosion jar, at pressure is 1.4-1.7Mpa, dwell time is that vapour is quick-fried under 5-6 minute condition, takes out washing, oven dry.
4,, it is characterized in that described flax fibre is hemp, flax, ramie, bluish dogbane, jute, sisal hemp and mestha according to the preparation method of the described spinnability flax fibre of one of claim 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101149264A CN100336946C (en) | 2005-11-16 | 2005-11-16 | Boiling-off method for bast fibre and bast fibre produced by the same |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005101149264A CN100336946C (en) | 2005-11-16 | 2005-11-16 | Boiling-off method for bast fibre and bast fibre produced by the same |
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| CN1772976A CN1772976A (en) | 2006-05-17 |
| CN100336946C true CN100336946C (en) | 2007-09-12 |
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| CNB2005101149264A Expired - Fee Related CN100336946C (en) | 2005-11-16 | 2005-11-16 | Boiling-off method for bast fibre and bast fibre produced by the same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121132A (en) * | 2011-03-14 | 2011-07-13 | 中国科学院过程工程研究所 | Ultra-low-alkali removal method for hemp fiber skin and adhesive residue degummed by vapor phase cooking |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100503903C (en) * | 2007-08-17 | 2009-06-24 | 武汉科技学院 | Extraction method of bamboo shoot case fibre for spinning |
| CN101148782B (en) * | 2007-09-10 | 2010-08-11 | 中国人民解放军总后勤部军需装备研究所 | Hemp-like bast fibre flash explosion-high temperature boiling combination degumming technique |
| CN101519416B (en) * | 2008-02-27 | 2012-04-25 | 中国科学院过程工程研究所 | Method for extracting and separating soluble functional components in hemp in a steam exploded manner |
| CN101255609B (en) * | 2008-03-18 | 2010-12-08 | 淄博兰雁集团有限责任公司 | Flash-explosion hemp degelatinizing technology with cryogenic processing and device |
| CN101982571B (en) * | 2010-09-10 | 2012-05-23 | 中国科学院过程工程研究所 | Preparation method of banana fiber from banana stems and leaves by steam explosion degumming |
| CN102776576B (en) * | 2011-12-20 | 2014-06-18 | 中国科学院过程工程研究所 | Preparation method of kendir fiber yarns and application thereof |
| CN103422279B (en) * | 2013-07-26 | 2015-08-12 | 东华大学 | A kind of crystalline substance of linen thread and yarn becomes method of modifying |
| CN103898616B (en) * | 2014-01-23 | 2016-09-07 | 青岛大学 | A kind of sisal hemp degumming technique |
| CN105167187B (en) * | 2015-07-28 | 2019-10-11 | 湖北中烟工业有限责任公司 | Ramee cigarette filter and preparation method thereof |
| CN106637430B (en) * | 2016-09-13 | 2017-12-15 | 武汉纺织大学 | Ramie High Temperature Gas exploding degumming technique |
| CN106868604A (en) * | 2017-02-20 | 2017-06-20 | 海安县兄弟合成纤维有限公司 | The hyperbranched steam explosion lotus fibers of XD 1 |
| CN107385884B (en) * | 2017-08-15 | 2018-07-10 | 马鞍山中港服饰有限公司 | A kind of modification processing method of knitwear ramee |
| CN109797441A (en) * | 2019-03-25 | 2019-05-24 | 清正生态科技(苏州)有限公司 | Flaxen fiber steam explosion physics degumming system |
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Cited By (2)
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| CN102121132A (en) * | 2011-03-14 | 2011-07-13 | 中国科学院过程工程研究所 | Ultra-low-alkali removal method for hemp fiber skin and adhesive residue degummed by vapor phase cooking |
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| CN1772976A (en) | 2006-05-17 |
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