CN108531999A - A kind of extraction of ramee and preparation method - Google Patents

A kind of extraction of ramee and preparation method Download PDF

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Publication number
CN108531999A
CN108531999A CN201710117363.7A CN201710117363A CN108531999A CN 108531999 A CN108531999 A CN 108531999A CN 201710117363 A CN201710117363 A CN 201710117363A CN 108531999 A CN108531999 A CN 108531999A
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ramee
drift
fiber
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高云
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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
    • D01C1/02—Treatment of vegetable material by chemical methods to obtain bast fibres
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/01—Natural vegetable fibres
    • D10B2201/08—Ramie

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Molecular Biology (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

The invention mainly relates to a kind of high-quality, high branch ramees, can reach 2500-4500 public affairs branch or even 4500 public branch or more, and extraction, the process for preparing the ramee, referred to as two boil two drift high temperature disintegrating methods.When the characteristics of this method is to carry out the extraction and preparation of ramee, contain bleaching, twice soda boiling, and the step of carrying out high temperature division twice.Bleaching twice is respectively chlorine drift and oxygen bleaching, and chlorine drift uses a concentration of 3-8G/L（Grams per liter）Sodium hypochlorite, 35-45 DEG C of temperature, time 40-80 minute.Oxygen bleaching hydrogen peroxide 4-6G/L, 80-100 DEG C of temperature, time 40-80 minute.Soda boiling carries out twice.High temperature division carries out after boiling two drifts two, using the soda ash of a concentration of 100-140G/L, 100-140 DEG C of temperature, time 1.5-2.5 hour when high temperature divides.The pure dimity and mixing, mixed yarn produced the invention further relates to above-mentioned ramee.

Description

A kind of extraction of ramee and preparation method
Technical field
The present invention relates to the purposes and the ramee of a kind of good ramee product and the ramee product The extraction of product and preparation method.
Background technology
China is one of the country that hemp resource is the abundantest in the world, and not only hemp resource is abundant in China, and bast fibre spinning Knit industry production capacity and textile product there has also been certain competitiveness in the world, China's Bast Fiber Textiles are main at present Have：Ramie textile product, hemp textile, spread out linen textile, yellow mestha textile, sisal hemp textile etc. at flax textile.
In the textiles such as body-building, safety, disease preventing and treating new markets, the work(of the bast-fibres such as ramie, flax, hemp exploitation Not only many is to meet the environment-friendly products of green consumption, but also be acknowledged as a kind of typical feed stock to energy property linen textile Health textile.But it is existing in the art to the method for the extraction of bast-fibre and preparation, it there is problems：For example, numb Fiber is coarse, and public number is relatively low, cannot obtain the high Zhi Youzhi dimitys, and the dyeability of flaxen fiber is poor；For example, fiber degumming skill Art is not perfect, and the self structure crystallinity of fiber is high, and degree of orientation is high.It is big to the waste of water in flaxen fiber preparation process, to environment It pollutes big etc..When extracting and preparing flaxen fiber, process is unreasonable, big to fibre damage, relatively low to the row yielding of fiber, Cause economic benefit low.Therefore, it is necessary to improve the extraction of current flaxen fiber and preparation process, satisfactory high quality fiber crops are obtained Fiber, and in turn the textile of high quality is obtained by specifically using the flaxen fiber.
Invention content
The purpose of the present invention is to provide a kind of good ramees and the pure fiber crops for having used the flaxen fiber to manufacture The mixture (raw material of such as non-woven fabrics) and a kind of extraction of ramee of yarn, mixed yarn and flaxen fiber and other fibers And preparation method.
The ramee of the present invention, which is characterized in that the ramee be 2500-4500 public affairs branch or even 4500 public branch with On；Pure ramie yarn made of the ramee is 32S-60SYarn, it might even be possible to be 60SAbove yarn；The ramee Manufactured mixing, mixed yarn are：40S-120SYarn, it might even be possible to be 120SAbove yarn.And ramee can be at present The fibre fineness reached is generally in 1500-1800 public affairs branch, and length 50-60mm, fiber deflection degree is poor, and the pure dimity only up to be spun 21S(English branch), much can not meet the demand in market.The ramee of the present invention can be described as superfine fibre fiber crops again herein.This hair Bright ramee can make the pure dimity for being directly available in textile, can also by it with animal origin, plant fiber, Chemical fibre carries out blended or mixing together, and the pure dimity and mixing, mixed yarn containing the flaxen fiber also fall into the present invention Protection domain within.
The present invention also provides a kind of extraction of ramee and preparation methods.
Existing flaxen fiber cannot spin the reason of high Zhi Youzhi yarns and be mainly：Contain a large amount of pectin, pigment, wax in flaxen fiber Matter, lignin etc., the adhesions such as pectin are wrapped in fiber surface and inside, therefore fiber is difficult to efficiently separate and drawing-off.Lignin Make that tendering of fiber, feel are poor, be faint in color and flaxen fiber molecular structure crystallinity is high, the degree of orientation is high.These make fiber bullet Property pliability substantially reduces.And flaxen fiber extraction at present and preparation process cannot solve the above problems very well, there are fibre strengths Damage is big, is difficult to control the problems such as best fiber thinness, this makes us be difficult to obtain high-quality flaxen fiber.For example, with regard to ramee For, ramee obtains single fiber Degumming method at present：Based on alkaline-heating method, mainly there are two cooking methods, two to boil a white silk method, two It boils a drift method and two and boils one white silk method of a drift etc..Its fibre fineness obtained is scratched in 1500-1800 public affairs branch, length 50-60mm, fiber Curvature is poor, and the pure dimity only up to spin 21S(English branch), much can not meet the demand in market.
The present invention can overcome existing in the prior art various ask using special ramee extraction and preparation process Topic, to which practical high branch silvalin can be obtained in commercial Application for the first time.The ramee that the method for the present invention obtains can Up to more than even 4500 public branch of 2500-4500 public affairs branch, and the fiber molecule degree of orientation, crystallinity become smaller, and fiber is bulk, crimpiness It greatly improves, extraction and preparation adopt new technology and two boil two drift high temperature disintegrating methods.
Cardinal principle：It is obtained in single fiber principle in tradition, further fiber surface can be made to divide into line splitting fiber Solution, fiber is thin than fibrinogen by 30% or so, and fibrous inside molecule is bulk, soft.
The process that high-quality high branch ramee is extracted, prepared in the present invention referred to as two boils two drift high temperature disintegrating methods, When feature is to carry out the extraction and preparation of ramee, containing bleaching, soda boiling twice twice, and the step of high temperature division is carried out Suddenly.Specifically, bleaching twice is respectively chlorine drift and oxygen bleaching, chlorine drift uses the sodium hypochlorite of a concentration of 3-8g/L (grams per liter), temperature 35-45 DEG C of degree, time 40-80 minute.Oxygen bleaching hydrogen peroxide 4-6g/L, 80-100 DEG C of temperature, time 40-80 minute.Soda boiling into Row twice, carries out soda boiling with caustic soda for the first time.High temperature division carries out after boiling two drifts two, and a concentration of 100- is used when high temperature divides The soda ash of 140g/L, 100-140 DEG C of temperature, time 1.5-2.5 hour.
Extraction and preparation to ramee, step can also be further defined to：
Pickling → washing → mono- boils → wash → mono- drift → pickling → bis- boil → wash → bis- drifts → high temperature division → washing → to Oil → dehydration → drying
Note：The explanation of ramee is extracted, prepared using the above method
The single fiber that ramee is made of a cell, fibre length are longest in fibre of flax for textile material fiber.Flaxen fiber In be unfavorable for spinning the impurity of the high Zhi Youzhi dimitys there is a large amount of pectin, cured matter, lignin etc., can be had using above-mentioned steps Effect extraction prepares ramee, wherein being described in detail as follows to involved important step：
1：Pickling
The impurity such as the pigment of fiber surface are removed using pickling, dissolve the impurity such as a part of pectin, cured matter, lignin.The present invention People has found to control sulfuric acid concentration used in 2-10g/L, 40-60 DEG C of temperature, time 1-2 hour by test of many times, can take The technique effect that must be got well.Wherein, for the difference of ramie raw materials impurity content, sulfuric acid content can suitably be adjusted, it is right The high raw material sulphuric acid concentration of impurity content can be slightly higher within the above range, and the raw material sulphuric acid concentration low to impurity content It then can be slightly lower.
Preferably, sulfuric acid concentration is controlled in 4-8g/L, temperature is controlled at 45-55 DEG C, and time control was at 75-110 minutes When, go depigmentation and the effect of dissolving can be more preferable.
2：Soda boiling
Soda boiling will carry out twice, i.e., one in above-mentioned steps boils and boiled with two.The purpose of soda boiling is to dissolve the fruit of fiber surface Impurity and the hemicelluloses such as glue, cured matter, lignin so that fibr tissue is bulk, soft touch.For this purpose, by soda boiling item Part controls：Amount of caustic soda 50-150g/L, time are 1.5-2 hours, and temperature is 90-140 DEG C, and (temperature of use is higher, purpose It is to keep fibr tissue more bulk, caustic soda gos deep into fibrous inside, cleared impurity).Preferable soda boiling effect can thus be obtained Fruit keeps the fibr tissue of acquisition more fluffy, and caustic soda gos deep into fibrous inside, and effectively cleared impurity.
Preferably, superior technique effect can be obtained by soda boiling condition being set as following condition：Amount of caustic soda 70- 120g/L, time are 100-115 minutes, and temperature is 110-130 DEG C.
3：Bleaching
Bleaching is using two drift methods, i.e., the drift in above-mentioned steps and two drifts.
Using two drift methods, first chlorine drift, i.e., one drift removes fiber impurity, especially removes the lignin in fiber, make fiber Fair and clear, soft touch.When chlorine floats, the sodium hypochlorite of a concentration of 3-8g/L, 35-45 DEG C of temperature, time 40-80 minute are used.Again Oxygen bleaching, i.e., two drifts, purpose keep molecular structure bulk, and fiber is more smooth, so that the impurity of adhesion is detached from fiber, fiber efficiently separates With easy drawing-off, with hydrogen peroxide 4-6g/L, 80-100 DEG C of temperature, time 40-80 minute.
Preferably, when chlorine floats, the sodium hypochlorite of a concentration of 4-7g/L, 35-45 DEG C of temperature, time 50-70 minute are used.Oxygen When drift, with hydrogen peroxide 4-6g/L, 80-100 DEG C of temperature, time 55-75 minute.At this point it is possible to obtain better bleaching effect.
4：High temperature divides
The purpose of high temperature division is needed at this time according to the adjusting control fiber to time and temperature to make fiber be completely separated Fineness.By test of many times and test, find on the basis of using aforementioned treatment Step, using a concentration of 100-140g/L's Soda ash, 100-140 DEG C of temperature, time 1.5-2.5 hour can obtain extraordinary high temperature splitting effect so that fiber thoroughly divides It splits, and obtains the uniform fiber of fineness.
Preferably, using the soda ash of 110-130g/L, 110-135 DEG C of temperature, time 100-140 minute when high temperature divides.
5：Oil supply
Using vegetable oil, dosage is the 1-2% of fiber quality, makes fiber adhesion together, keeps fiber softer, improve fibre Deflection degree, finish, the pliability of dimension.
Above each process bath raio 1: 10-20 (per kilogram fiber 10-20 kg of solution).
Using the method for the present invention, the ramee haveing excellent performance as follows, the pure dimity, mixed yarn can be made：
1, the ramee extracted with the present invention, generally more than 2500 public branch, high can reach 4500 public branch, or even can To reach 4500 public branch or more, and the fiber molecule degree of orientation, crystallinity become smaller, and fiber is bulk, and crimpiness greatly improves, can Spin 32S-60SEven 60SAbove pure ramie yarn (also contains 32 certainlySThe pure ramie yarn below made of the invented technology), it fills out The worlds Bu Liao blank.
2, it is mixed with animal origin, plant fiber, the chemical fibre etc. of present invention extraction ramee and various ratios It closes, is blended, 40 can be madeSAbove mixing, mixed yarn, high even can reach 120SOr even 120SAbove (certainly 40 can be madeSMixing below, mixed yarn).
3, flaxen fiber dyeing can be directly carried out with present invention extraction ramee, is mixed with multiple fiber, is blended, is solved Certainly due to different attribute fiber finishing and the difficulty of dyeing, and directly the fabric that flaxen fiber is made is dyed. Thus the quality of pure linen and ramee and other fiber mixed fabrics is greatly improved, consumption is reduced, improves product specification, Ensure linen style.
4, it in short, in the extraction and preparation of ramee, since traditional handicraft makes fiber loss with beaing, rinse, takes off Glue is uneven, damages fiber, causes fiber to be largely lost in the processing technology below, the fiber produced with the present invention with Fiber of the traditional handicraft compared to more extractions 10%.In soak, pectin can further purify carry out deep processing, especially this Technology promotes the use, and due to the degumming of fiber, will greatly reduce dye-works's sewage discharge, reduces working environment and invades worker Evil.Protection of the present invention to environment, to the saving of the energy, using being bast fiber fabrics epoch-making, that this method processes, Except original antibacterial, antiultraviolet, ventilative advantage is protected, also become smooth, smooth, comfortable, wrinkle resistance substantially improves.
Very high comprehensive benefit can be generated using the present invention.The present invention obtains 2500-4500 public affairs branch for the first time, even Ramees more than 4500 public branch, it is 32 to obtain pure ramie yarn for the first timeS-60SYarn, it might even be possible to be 60SAbove yarn Line, and then mixing, mixed yarn made of the ramee can also be made：40S-120SYarn, it might even be possible to be 120SWith On yarn.The method of the present invention makes it possible the industrialized productions of the high Zhi Youzhi yarns of pure fiber crops, has filled up world textile industry Blank, substantially increase productivity effect and economic benefit.The flaxen fiber obtained with this method, can be with plant fiber, animal Fiber, chemical fibre it is blended become easy it is feasible, and product quality more stablize, product specification will also greatly promote.This hair The flaxen fiber that bright method obtains can be with direct staining so that color spins the dimity and is possibly realized, and flax product and fiber crops will be made fine with other It ties up product that is blended or interweaving and promotes the new market space.Due to the fiber fluffy that the present invention obtains, can directly be dyed, Function admirable can be without pre-treatment, compared with traditional handicraft when manufacturing cloth fabric using the fiber, which drops significantly The low consumption of industrial chemicals can about save 30% dye material, and the process time shortens, fiber life manufacture with the invention The textile of production is per ton to save 300 tons of industrial water, and correspondingly reduces the discharge of sewage, and has saved mass energy. The removal of the impurity such as this technique pectin, lignin so that fibrous molecular structure is bulk, and degree of orientation, crystallinity reduce, so that It is dense, bright-coloured that product obtains color depth, good color fastness.
Specific implementation mode
The present invention is described in more detail With reference to embodiment.It should be pointed out that following implementation Example is merely illustrative that be not meant to be defined the scope of the present invention, the present invention is by appended claims and its waits The range of jljl is limited.
Embodiment 1：A kind of extraction of ramee and preparation method
Two drift high temperature disintegrating methods are boiled using two, first get out ramie raw materials, then carry out corresponding ramee with these raw materials and carry It takes and prepares, containing bleaching, soda boiling twice twice in entire technical process, and the step of carrying out high temperature division, twice bleaching divide Not Wei chlorine drift and oxygen bleaching, chlorine drift using a concentration of 6g/L sodium hypochlorite, 40 DEG C of temperature, 60 minutes time, oxygen bleaching hydrogen peroxide 5g/L, 92 DEG C of temperature, 60 minutes time；Soda boiling carries out twice, carrying out soda boiling with caustic soda for the first time；High temperature division boils two drifts two After carry out, high temperature divide when using a concentration of 120g/L soda ash, 120 DEG C of temperature, time 2 h.
Embodiment 2：A kind of extraction of ramee and preparation method
Two drift high temperature disintegrating methods are boiled using two, first get out ramie raw materials, then carry out corresponding ramee with these raw materials and carry It takes and prepares, containing bleaching, soda boiling twice twice in entire technical process, and the step of carrying out high temperature division, twice bleaching divide Not Wei chlorine drift and oxygen bleaching, chlorine drift using a concentration of 8g/L sodium hypochlorite, 35 DEG C of temperature, 80 minutes time, oxygen bleaching hydrogen peroxide 6g/L, 85 DEG C of temperature, 80 minutes time；Soda boiling carries out twice, carrying out soda boiling with caustic soda for the first time；High temperature division boils two drifts two After carry out, high temperature divide when using a concentration of 100g/L soda ash, 140 DEG C of temperature, 1.5 hours time.
Embodiment 3：The extraction of ramee and preparation method, and the accordingly preparation of the pure dimity, mixed yarn
Ramie raw materials are subjected to pickling, sulfuric acid concentration 5g/L, 55 DEG C of temperature, 90 minutes time.
It pulls ramie raw materials out, is washed.
Ramie raw materials after washing are subjected to first time soda boiling, i.e., one boils, and one boils using soda boiling, and condition is：Caustic soda 90g/ L, 110 minutes time, 120 DEG C of temperature.
Ramie raw materials after one is boiled are washed.
Bleached ramie raw material.Bleaching is floated using chlorine, uses the sodium hypochlorite of concentration 5g/L, 40 DEG C of temperature, 60 minutes time.
Pickling is carried out, with the chlorion remained in being floated except dechlorination.
Ramie raw materials after pickling are subjected to second of soda boiling, i.e., two boil.Two conditions boiled are same to boil.
It is washed again.
Oxygen bleaching is carried out, with hydrogen peroxide 5g/L, 90 DEG C of temperature, 60 minutes time.
Carry out high temperature division.Using the soda ash of 120g/L, 120 DEG C of temperature, 120 minutes time when high temperature divides.
It is washed.
Give flaxen fiber oil supply.It is the 1.5% of fiber quality that vegetable oil, dosage are used when oil supply.
Process above bath raio 1: 15.
Fiber after oil supply is carried out dehydrating, is then dried, ramee is made.After testing, line density For 3.0dtex (3300 public branch).
By part ramee obtained, routinely technique is spinned, and can be made 40SPure ramie yarn.
By part ramee obtained, routinely technique and the progress of U.S.'s long-staple cotton fiber are blended, are made 80SMixed yarn (flaxen fiber 55%, cotton fiber 45%).
In above step, the method not being specifically described is the conventional method that those skilled in the art know.
Embodiment 4：The extraction of ramee and preparation method, and the accordingly preparation of the pure dimity, mixed yarn
Outer, the extraction and preparation of ramee in the embodiment is especially indicated except following, the preparation of the pure dimity, mixed yarn is the same as implementation Example 3.
When pickling, sulfuric acid concentration 10g/L, temperature 45 C, 60 minutes time.
One condition of boiling is：Caustic soda 50g/L, 120 minutes time, 110 DEG C of temperature.
The sodium hypochlorite of concentration 8g/L, 35 DEG C of temperature, 80 minutes time are used when chlorine floats.
With hydrogen peroxide 4g/L, 100 DEG C of temperature, 70 minutes time when oxygen bleaching.
Using the soda ash of 130g/L, 135 DEG C of temperature, 120 minutes time when high temperature divides.
It is the 1.8% of fiber quality that vegetable oil, dosage are used when oil supply.
Process above bath raio 1: 20.
After testing, line density is 2.5dtex (4000 public branch) to ramee obtained.
By part ramee obtained, using cotton spinning equipment, routinely technique is spinned, and can be made 48SPure ramie yarn.
By part ramee obtained, routinely technique and the progress of U.S.'s long-staple cotton fiber are blended, are made 100SMixed yarn (flaxen fiber 55%, cotton fiber 45%).
Embodiment 5：The extraction of ramee and preparation method, and the accordingly preparation of the pure dimity, mixed yarn
Outer, the extraction and preparation of ramee in the embodiment is especially indicated except following, the preparation of the pure dimity, mixed yarn is the same as implementation Example 3.
When pickling, sulfuric acid concentration 4g/L, 55 DEG C of temperature, 75 minutes time.
One condition of boiling is：Caustic soda 70g/L, 115 minutes time, 120 DEG C of temperature.
The sodium hypochlorite of concentration 7g/L, 40 DEG C of temperature, 55 minutes time are used when chlorine floats.
With hydrogen peroxide 6g/L, 80 DEG C of temperature, 75 minutes time when oxygen bleaching.
Using the soda ash of 110g/L, 135 DEG C of temperature, 130 minutes time when high temperature divides.
It is the 2.0% of fiber quality that vegetable oil, dosage are used when oil supply.
Process above bath raio 1: 10.
After testing, line density is 2.0dtex (5000 public branch) to ramee obtained.
Part ramee obtained is spinned using cotton spinning production line, 48 can be madeSPure ramie yarn.
Part ramee obtained is blended using the spinning production line of cashmere and cashmere fiber, it is made 100SMixed yarn (flaxen fiber 40%, cashmere fiber 60%).

Claims (3)

1. extraction and the preparation method of a kind of ramee, this method referred to as two boils two drift high temperature disintegrating methods, which is characterized in that into When the extraction and preparation of row ramee, contains bleaching, soda boiling twice twice, and the step of carrying out high temperature division, bleach twice Respectively chlorine drift and oxygen bleaching, chlorine drift use the sodium hypochlorite of a concentration of 3-8g/L, 35-45 DEG C of temperature, time 40-80 minute, oxygen Drift hydrogen peroxide 4-6g/L, 80-100 DEG C of temperature, time 40-80 minute；Soda boiling carries out twice, carrying out alkali with caustic soda for the first time It boils；High temperature division carries out after boiling two drifts two, using the soda ash of a concentration of 100-140g/L, temperature 100-140 when high temperature divides DEG C, time 1.5-2.5 hour.
2. extraction and the preparation method of a kind of ramee as described in claim 1, which is characterized in that this method includes such as Under several steps：Pickling → washing → mono- boils → wash → mono- drift → pickling → bis- boil → wash → bis- drifts → high temperature division → Washing → oil supply → dehydration → drying；Wherein, sulfuric acid, concentration is used to control in 2-10g/L, 40-60 DEG C of temperature when pickling, Time 1-2 hour；One boils, two to boil be soda boiling, and two conditions boiled are identical, are：Amount of caustic soda 50-150g/L, time is 1.5-2 hours, temperature was 90-140 DEG C；Using two drift methods, a drift condition is the hypochlorous acid using a concentration of 3-8g/L for bleaching Sodium, 35-45 DEG C of temperature, time 40-80 minute, two drift conditions are to use hydrogen peroxide 4-6g/L, 80-100 DEG C of temperature, time 40- 80 minutes；Using the soda ash of a concentration of 100-140g/L, 100-140 DEG C of temperature, time 1.5-2.5 hour when high temperature divides； It is the 1-2% of fiber quality that vegetable oil, dosage are used when oil supply；Process above bath raio 1: 10-20.
3. extraction and the preparation method of a kind of ramee as claimed in claim 2, which is characterized in that by sulfuric acid when pickling Concentration control is controlled in 4-8g/L, temperature at 45-55 DEG C, and time control was at 75-110 minutes；Soda boiling condition controls：Caustic soda Dosage 70-120g/L, time are 100-115 minutes, and temperature is 110-130 DEG C；When one drift, time of a concentration of 4-7g/L is used Sodium chlorate, 35-45 DEG C of temperature, time 50-70 minute；When two drifts, with hydrogen peroxide 4-6g/L, 80-100 DEG C of temperature, time 55-75 Minute；Using the soda ash of 110-130g/L, 110-135 DEG C of temperature, time 100-140 minute when high temperature divides.
CN201710117363.7A 2017-03-01 2017-03-01 A kind of extraction of ramee and preparation method Pending CN108531999A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110373758A (en) * 2019-07-26 2019-10-25 青岛大学 A kind of flax fine yarn technique based on cast tow raw material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110373758A (en) * 2019-07-26 2019-10-25 青岛大学 A kind of flax fine yarn technique based on cast tow raw material

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Application publication date: 20180914