CN101818379A - Flax fibers and preparation method thereof - Google Patents
Flax fibers and preparation method thereof Download PDFInfo
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- CN101818379A CN101818379A CN200910009283A CN200910009283A CN101818379A CN 101818379 A CN101818379 A CN 101818379A CN 200910009283 A CN200910009283 A CN 200910009283A CN 200910009283 A CN200910009283 A CN 200910009283A CN 101818379 A CN101818379 A CN 101818379A
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Abstract
The invention relates to flax fibers. The strength of the flax fibers is 3.0 to 8.0cN/dtex and the fineness of the flax fibers is 1,500 to 3,500 Nm; preferably, the strength of the flax fibers is 4.0 to 7.0cN/dtex and the fineness of the flax fibers is 1,500 to 3,000Nm; more preferably, the strength of the flax fibers is 4.5 to 6.5cN/dtex and the fineness of the flax fibers is 1,800 to 2,800Nm; and optimally, the strength of the flax fibers is 5.0 to 6.0cN/dtex, and the fineness of the flax fibers is 2,300 to 2,700Nm. The invention also relates to the preparation method of the flax fibers, which comprises the steps of acid impregnation, washing, oxidization, fiber spinning, oil feeding, oil and water removal, fiber softening, oil feeding and wetting, stowing and mechanical loosing. The flax fibers provided by the invention have high strength and fineness. The preparation method is short in process and light in pollution.
Description
Technical field
The invention belongs to field of textiles, specifically, the present invention relates to a kind of linen fibre and preparation method thereof.
Background technology
Along with the raising of people's living standard, more for paying close attention to, this impels people to strengthen utilization again and exploitation to the natural fabric resource to fashion styles such as the sucting wet air permeability of garment material, health, stiffness, environmental protections.Linen fibre is good textile raw material, and its fabric has the moisture absorption good heat dissipation, gas permeability is good, texture is natural, gloss is soft, well-pressed individual style such as generous, and this makes its extremely consumer preference.
Current domestic jute mill mainly adopts the wet spinning method, promptly (its fineness is thick with scutched flax earlier, about 200～300 public) produce rove by operations such as combing, grilling, rove, rove floats with the contained colloid of further removal through over-cooking again then, and the feeding fine spining machine spins under hygrometric state again.Its technological process is: comb growth fiber crops → humidification health → join fiber crops → slivering → length fiber crops in advance also to process the numb rove → roving boiling and bleaching of (or gilling machine) → drafting → length → wet spinning spun yarn → drying → back.This complex process, long flow path, limit count is low, and general resultant yarn fineness requires very high at 15～36 public to equipment, and poor working environment, be again wet processes simultaneously, be difficult to carry out the blending of flax and other fibers, and wet-spun yarn be more stiff, be difficult to knitting application, aspect the textile product exploitation of top grade, many kinds significant limitation arranged.
Washing has been adopted in patent application 95109371, and---------method of washing---oxygen floats---washing prepares flax roving in kiering in pickling, it adopts sodium dithionite, vulcanized sodium, anthraquinone and NaOH to carry out kiering, and then use hydrogen peroxide, and add hydrogen peroxide stabilizer and ED-8 and carry out oxygen and float.Its method is floated kiering and oxygen separately and is carried out, and has increased production link.In addition, used a large amount of NaOH in the kiering, wastewater treatment is cumbersome, and environmental pollution is serious; The hydrosulfurous acid sodium toxicity is big, in the production process workman is damaged seriously, and the sodium dithionite in the product is residual that the consumer health is threatened.
88102614 of patent applications unite two into one kiering and bleaching and carry out, its with scutched flax after pre-acid, boil then float, oil supply, last degummed ramie.It boils and adds potassium hydroxide or sodium hydride when floating, the bleaching agent that uses is peroxide such as hydrogen peroxide, potassium peroxide or sodium peroxide, with tween, Si Ben or triethanolamine olein is surfactant, has added dimethyl sulfone, diethyl sulfone or benzene second sulfone etc. in addition as promoter.
Raw material such as 200610031004 pairs of flax of patent application and degumming baths are according to 1: the weight ratio of 10-20 is mixed, and comes unstuck under 30～100 ℃ 1-5 hour, and washing then, oil, be drying to obtain can be for the fiber of weaving usefulness.Described degumming agent can be hydrogen peroxide, and adds sodium phosphate, sodium phosphate trimer etc. as chelating agent, is the hydrogen bond disrupting agent with urea, and adding waterglass or carboxymethyl cellulose is anti-deposition agent, is the lignin remover with sodium sulfite or sodium hydrogensulfite.But the filament fineness of this method preparation is low, and fibre strength is poor, has very big limitation in the application of field of textiles.
The linen fibre fineness of method for preparing is low, can only be applied to spin on the expensive special installation.In order to address the above problem, can carry out process of refinement to linen fibre, make the performance (especially fineness, pliability etc.) of fiber further perfect, shorten to realize spinning line, production efficiency improves, and yarn quality improves, and Application Areas is widened.
Summary of the invention
One of the object of the invention is to provide a kind of linen fibre, and linen fibre provided by the invention has higher fineness and intensity, can spin on other spinning unit.
Two of the object of the invention is to provide the preparation method of this linen fibre, and preparation method provided by the invention is simple to operate, and environmental pollution is little.
In order to realize the foregoing invention purpose, the present invention adopts following technical scheme:
A kind of linen fibre, described linen fibre intensity are that 3.0～8.0cN/dtex, fineness are 1500～3500 public; Being preferably intensity 4.0～7.0cN/dtex, fineness is 1500～3000 public; More preferably intensity 4.5～6.5cN/dtex, fineness are 1800～2800 public; Most preferably being intensity 5.0～6.0cN/dtex, fineness is 2300～2700 public.
According to foregoing linen fibre, it is characterized in that as requested, the length of fiber can reach 30～80mm after the shredding.
The preparation method of foregoing linen fibre, comprise pickling, washing, oxidation, beat fibre, oil supply, de-oiled water, softening, oil supply humidification, heap storage and mechanical shredding step, it is characterized in that, described oxidation step is, every kilogram of linen fibre water 8～12kg, in water, add earlier sodium carbonate or potash, sodium metasilicate, urea and penetrating agent JFC, addition for add the every premium on currency in back contain sodium carbonate or potash 2～6g, sodium metasilicate 2～8g,
Urea 2～8g and penetrating agent JFC 1～4g, the dissolving back adds H fully
2O
2, H
2O
2Addition is with pure H
2O
2Count the every premium on currency in adding back and contain H
2O
23～12g; Be preferably every kilogram of linen fibre water 10kg, every premium on currency contains sodium carbonate or potash 2～4g, sodium metasilicate 3～5g, urea 3～5g, penetrating agent JFC 2g, H
2O
2Addition is with pure H
2O
2Count the every premium on currency in adding back and contain H
2O
23～8g.
According to foregoing preparation method, described oxidation step at the uniform velocity is warming up to 70～100 ℃ for flax is put into oxidation liquid from room temperature, and the heating-up time is controlled at 20～60min, and oxidation time is 2.0～4.0 hours; Be preferably from room temperature and at the uniform velocity be warming up to 70～90 ℃, the heating-up time is controlled at 30～40min, and oxidation time is 1.0～3.0 hours.
According to foregoing preparation method, described pickling step is 1～3g/L for the concentration of acid, temperature is at 35～70 ℃; bath raio is 1: 8～1: 12; the pickling time is 30～80min, and the concentration that is preferably acid is 1～2g/L, and temperature is at 40～50 ℃; bath raio is 1: 10, and the pickling time is 40～60min.
According to foregoing preparation method, finish is a machinery oil in the described oil supply step, is preferably bobbin oil or white oil; Every kilogram of linen fibre is modulated into emulsion with machinery oil 10～40g, with NaOH 1～8g, washing agent 2～10g with the stirring of 8～12kg water, with the linen fibre dipping wherein, is incubated 0.5～3h under 60～100 ℃ environment; Be preferably every kilogram of linen fibre with machinery oil 10～20g, with NaOH 3～6g, washing agent 2～8g, be modulated into emulsion, with the linen fibre dipping wherein, under 80 ℃ environment, be incubated 1h with the stirring of 10kg water.
According to foregoing preparation method, adopt vegetable oil in the described oil supply humidification step, be preferably tea oil or rape oil; Vegetable oil, NaOH, washing agent and water stirring are modulated into emulsion, equably emulsion are sprayed on the linen fibre at softener ramie stripes output, described washing agent is washing agent commonly used; Every kilogram of linen fibre is with vegetable oil 5～40g, with NaOH 1～10g, washing agent 1～12g, and water 50～200g is preferably every kilogram of linen fibre with vegetable oil 10～20g, with NaOH3～6g, washing agent 2～8g, water 70～150g.
According to foregoing preparation method, described heap storage is 20～60 ℃ of temperature, 15～60 hours time; Be preferably 25～40 ℃ of temperature, 24～48 hours time.
According to foregoing preparation method, licker-in and feed plate space and adopt 0.10～7.50mm in the described mechanical shredding step, are preferably 0.12～5.50mm.
According to foregoing preparation method, the feed plate of carding machine will be raised 1～5cm in the described mechanical shredding step, is preferably 2～3cm.
Below the present invention is elaborated:
Linen fibre intensity provided by the invention is that 3.0～8.0cN/dtex, fineness are 1500～3500 public; Being preferably intensity 4.0～7.0cN/dtex, fineness is 1500～3000 public; More preferably intensity 4.5～6.5cN/dtex, fineness are 1800～2800 public; Most preferably being intensity 5.0～6.0cN/dtex, fineness is 2300～2700 public.
Linen fibre fineness height provided by the invention, can adopt in the prior art and carry out dry-spinning processing than the simpler cotton spinning of traditional flax wet, wool spinning or ramie spinning equipment, 60 public above pure spinning or blended yarn of flax of spinning, overcome the defective that the wet method linen yarn generally can only spin the low count yarn about 24～36 public, can be used for making high-grade fabric, make that the application of linen fibre is more extensive.
The become more meticulous technological process of linen fibre of the present invention preparation is as follows:
Scutched flax → pickling → washing → oxidation → beat fibre → oil supply → de-oiled water → softening → oil supply humidification → heap storage → mechanical shredding.
Described oxidation step is: form the oxidative lignin that is soluble in sig water by hydrogen peroxide and lignin reaction, colloid between the while hydrogen peroxide oxidation fiber, make the colloid between the fiber bulk, reduce interfibrous contact power, thereby fiber can separated through after the mechanism.The preparation of degumming baths and oxidizing process: every kilogram of linen fibre water 8～12kg, promptly bath raio is 1: 8～1: 12.In water, add sodium carbonate or potash earlier, sodium metasilicate, urea and penetrating agent JFC auxiliary agents such as (fatty alcohol polyethenoxy ether class compounds), sodium carbonate or solution of potassium carbonate are weak base, its alkalescence is softer, adding an amount of sodium carbonate or potash can guarantee that alkali number is enough removed and alleviate the damage of alkali to fiber under the situation of colloid, sodium metasilicate is a hydrogen peroxide stabilizer, urea has certain fluffy effect to fiber, bleeding agent can increase the osmosis of chemicals to fiber, addition contains sodium carbonate 2～6g for adding the every premium on currency in back, sodium metasilicate 2～8g, urea 2～8g and penetrating agent JFC 1～4g, the dissolving back adds H fully
2O
2, H
2O
2Addition is with pure H
2O
2Count the every premium on currency in adding back and contain H
2O
23～12g.
Wherein can further preferred every kilogram of linen fibre water 10kg, every premium on currency contains sodium carbonate or potash 2～4g, sodium metasilicate 3～5g, urea 3～5g, penetrating agent JFC 2g, H
2O
2Addition is with pure H
2O
2Count the every premium on currency in adding back and contain H
2O
23～8g.
In addition, described oxidation step operation can more preferably be put into flax oxidation liquid, at the uniform velocity is warming up to 50～100 ℃ from room temperature, and the heating-up time is controlled at 20～60min, and oxidation time is 2.0～4.0 hours; Be preferably from room temperature again and at the uniform velocity be warming up to 70～90 ℃, the heating-up time is controlled at 30～40min, and oxidation time is 1.0～3.0 hours.
Described pickling effect is a pectin of tentatively removing the scutched flax fiber skin, and removes the metal ion in the linen fibre, and metal ion can play catalytic action to oxidation reaction and cause the hydrogen peroxide reaction too fast, thereby to the fiber over oxidation.The too high meeting of concentration, temperature of acid causes cellulosic excessive hydrolysis, concentration, the temperature of acid crossed the low effect that can not reach metal ion in removal pectin and the fiber, the pickling process can be with reference to the pickling of prior art among the present invention, yet in order further to improve the quality of products, the concentration of acid is controlled at 1～3g/L in the preferred pickling process, temperature is at 35～70 ℃, and bath raio is 1: 8～1: 12 (promptly 1 kilogram of linen fibre adds 8～12 kg of water), and the pickling time is 30～80min; More preferably Suan concentration is 1～2g/L, and temperature is at 40～50 ℃, and bath raio is 1: 10, and the pickling time is 40～60min.
Described acid is adoptable any acid in the prior art pickling, for example organic class acid and mineral-type acid.Wherein preferably hydrochloric acid, sulfuric acid or oxalic acid.
Wherein washing also can be preferably residual impurity such as acid on the clear water flush away linen fibre with reference to any washing operation in the prior art among the present invention, and the pH value that makes linen fibre keeps the cleaning of linen fibre about 7.
The described fibre of beating is also beaten fine process for prior art is any, by hitting, removal has broken away from from linen fibre, but still sticks to the impurity on linen fibre surface, generally hits 2～5 times.Wash after the strike, its objective is oxidant residual on the flush away subfiber and colloid etc., keep the clean of linen fibre once more and the pH value of linen fibre is remained on about 7, the dehydration of washing back, the most of moisture of utilizing industrial centrifugal dehydrator will wash on the linen fibre of back is removed, and it can be any washing operation of prior art.
Described oil supply purpose is again linen fibre to be bonded together after preventing to remain in the colloid drying on linen fibre surface; The preparation of finish and oil supply process: finish is a machinery oil, those skilled in the art know in the linen fibre oil supply process usually should adopt for which kind of machinery oil, those skilled in the art need not to make creative work to this, and the realization of the object of the invention is not limit by the machinery oil kind yet.Yet can be preferably bobbin oil or white oil, machinery oil has very strong lubrication, can prevent more effectively that fiber from boning again.The oil supply operation can be with reference to the oil supply process of existing ramie, the consumption of preferred oil of the present invention: every kilogram of linen fibre is with machinery oil 10～40g, with NaOH 1～8g, washing agent 2～10g, be modulated into emulsion with the stirring of 8～12kg water, with the linen fibre dipping wherein, under 60～100 ℃ environment, be incubated 0.5～3h.
Described oil supply also can be more preferably every kilogram of linen fibre with machinery oil 10～20g, with NaOH 3～6g, washing agent 2～8g, stir with 10kg water and to be modulated into emulsion, with the linen fibre dipping wherein, under 80 ℃ environment, be incubated 1h.
Described de-oiled water is most of moisture on the linen fibre and oil slick removal after utilizing industrial centrifugal dehydrator with oil supply, oven dry then, and those skilled in the art know the operation of this de-oiled water usually, need not to pay creative work again.
Described softening is the too much rubbing repeatedly to roller of linen fibre warp after will drying, and makes fiber softening, loose, is beneficial to the processing of road, back, and it can be operated with reference to the softening of existing ramie.
Because the moisture of oven dry back fiber very little, fiber is crude and stiff, be to increase the lubricity and the flexibility on linen fibre surface, reduces in the back road processing such as mechanical shredding the damage to linen fibre, to add some oil and water to flax, promptly described oil supply humidification step.
The oil supply humidification also can add wet practice with reference to existing flax oil supply, and promptly those skilled in the art know the kind of the oil that described oil supply humidification adopted usually, and the present invention seeks to realize not limit by oily kind.Yet be further to improve the linen fibre quality, the present invention is preferably: the general vegetable oil that adopts of oil, because of it has certain viscosity, can suitably improve the cohesive force between the fiber.The consumption of oil: every kilogram of linen fibre is with vegetable oil 5～40g, with NaOH 1～10g, washing agent 1～12g, be modulated into emulsion with the water stirring of 50～200g (looking the needs of regain), on the softening operation, equably emulsion be sprayed at (the same) on the linen fibre with existing ramie softening operation.
Described oil supply humidification also can be preferably every kilogram of linen fibre vegetable oil 10～20g again, use NaOH3～6g, washing agent 2～8g, water 70～150g.
Described heap storage is in order to make added oil, water can be penetrated into linen fibre inside equably, and it can be any heap storage operation of prior art, and the present invention is preferably 20～60 ℃ of temperature, 15～60 hours time; More preferably temperature is 25～40 ℃, 24～48 hours time.
Described mechanical shredding is with the feeding of the linen fibre after heap storage shredding machinery, makes linen fibre through after the preliminary loose decomposition, again its feeding carding machine is carried out careful shredding, compartition.Concrete operations can be with reference to the operation of any mechanical shredding of prior art, the present invention when further reducing the shredding combing to the damage of linen fibre, guarantee fibre length, preferred licker-in and feed plate space and adopt 0.10～7.50mm, more preferably 0.12～5.50mm.
In addition, the feed plate of carding machine also can further be raised 1～5cm to increase carding process length, is preferably and raises 2～3cm.This carding machine can only be that feed plate is raised among the present invention referring to the carding machine of prior art.That is to say that those skilled in the art all know this structure with carding machine of feed plate, those skilled in the art only need the too high 1～5cm of described feed plate.
The linen fibre that becomes more meticulous that the present invention openly prepares, can utilize existing wool spinning, ramie to spin and finish dry-spinning processing with the spinning process equipment of cotton spinning, 60 public above pure spinning or blended yarn of flax of spinning, not only shortened the operation of traditional flax wet spinning greatly, also overcome lea yarn and can only spin thick (mainly at 24～36 public) yarn, and yarn is stiff, is difficult to the defective of knitting application.Flax that this method processes and blended yarn thereof can be used as knit fabric, high-grade clothing and FURNISHING FABRIC, make the application of linen fibre more extensive.
Compared with prior art, advantage of the present invention is as follows:
1, the medicine that mainly uses in the chemical treating process disclosed by the invention is hydrogen peroxide, and the alkali consumption is less, only help out, so the pH value of waste water after the processing 7～8, environmental pollution significantly reduces;
2, the linen fibre that becomes more meticulous that the present invention openly prepares, improved the spinnability (length and fineness etc.) of linen fibre greatly, make it can utilize existing cotton spinning or wool spinning equipment to finish dry-spinning processing, its cotton spinning flow process is: opening or cleaning → comb and parallel cotton fibers prior to spinning → in advance also → combing → drafting → rove → spun yarn → back processing; The flow process that its wool spinning or ramie are spun is: combing → drafting → combing → grilling → rove → spun yarn → back processing.They are compared with the flax wet operation of routine, have shortened spinning line greatly, and can spin 60 public above pure spinning or blended yarn of flax, have overcome the conventional wet Asia
The dimity can only spin thick (mainly public of 24-36) yarn, and yarn is stiff, is difficult to the defective of knitting application, has satisfied high-count yarn spun and has made the high-grade clothes and the demand of FURNISHING FABRIC.
3, prepared linen fibre fineness, the intensity height of the present invention further enlarged the use field of linen fibre.
The specific embodiment
The following examples will be done to explain more specifically to the present invention, but the present invention is not limited only to these embodiment, and these embodiment do not limit the present invention in any way yet equally.
Embodiment 1:
Scutched flax is put into the pickling pond, and 10 kilograms of per kilogram flax waters (bath raio 1: 10) add sulfuric acid, and making sulfuric acid concentration is 1g/L.Solution temperature is risen to 40 ℃, take out behind the insulation 40min and linen fibre is cleaned, the pH value of linen fibre is reached about 7 with clear water; Linen fibre after cleaning is put into oxidation liquid, and bath raio adopted 1: 10, and hydrogen peroxide in the oxidation liquid (is pressed pure by pure H
2O
2Calculation) content is 3g/L, sodium metasilicate content 3g/L, potash content 2g/L, urea content 3g/L, JFC content 2g/L.The temperature of oxidation liquid is at the uniform velocity risen to 70 ℃ by normal temperature, and the heating-up time is controlled at 30min, and temperature arrives relief oxidation liquid insulation 2h; Beat with the linen fibre of mallet after, hit 2 times oxidation; With clear water the linen fibre after beaing is cleaned, flush away remains in the medicine and the impurity of fiber surface.Utilize centrifugal dehydrator that linen fibre is dewatered, in the oil emulsion that after the dehydration linen fibre is soaked, per kilogram linen fibre bobbin oil 10g, NaOH3g, washing agent 2g, stir the formation emulsion with 10kg water, with the linen fibre dipping wherein, under 80 ℃ environment, be incubated 1h.With the fiber dewatering after the oil supply, the oven dry of drying machine.Linen fibre after the oven dry is through softener processing, and sprays emulsion, and its composition be (per kilogram flax): tea oil 10g, and NaOH3g, washing agent 2g, the water stirring of 150g is modulated into emulsion, puts into temperature then and be 27 ℃ storehouse 24h.After the linen fibre of the shredding machinery that utilization has a pin tooth after to heap storage carries out preliminary shredding, will carry out further shredding, compartition in its feeding carding machine again, the carding machine feed plate is raised 2cm, licker-in and the feed plate employing 5.5mm that spaces.
Adopt the main performance index of the linen fibre that becomes more meticulous of above prepared as follows:
The linen fibre main performance index of table 1, embodiment 1 preparation
| Fineness (Nm) | Fracture strength (cN/tex) | Intensity irregular (CV%) | Percentage elongation (%) | Percentage elongation irregular (CV%) | Average length (mm) | Pliability sth. made by twisting/dtexm | |
| Flax | ??3500 | ??8.0 | ??21.31 | ??3.66 | ??10.3 | ??40 | ??1.21 |
Embodiment 2:
Scutched flax is put into the pickling pond, and 10 kilograms of per kilogram flax waters (bath raio 1: 10) add sulfuric acid, and making sulfuric acid concentration is 2g/L.Solution temperature is risen to 50 ℃, take out behind the insulation 45min and linen fibre is cleaned, the pH value of linen fibre is reached about 7 with clear water; Linen fibre after cleaning is put into oxidation liquid, and bath raio adopted 1: 10, and hydrogen peroxide in the oxidation liquid (is pressed pure by pure H
2O
2Calculation) content is 4g/L, sodium metasilicate content 4g/L, carbonate content 3g/L, urea content 4g/L, JFC content 2g/L.The temperature of oxidation liquid is at the uniform velocity risen to 80 ℃ by normal temperature, and the heating-up time is controlled at 32min, and temperature arrives relief oxidation liquid insulation 2.2h; Beat with the linen fibre of mallet after, hit 2 times oxidation; With clear water the linen fibre after beaing is cleaned, flush away remains in the medicine and the impurity of fiber surface.Utilize centrifugal dehydrator that linen fibre is dewatered, in the oil emulsion that after the dehydration linen fibre is soaked, per kilogram linen fibre bobbin oil 12g, NaOH4g, washing agent 3g, stir the formation emulsion with water 10kg, with the linen fibre dipping wherein, under 80 ℃ environment, be incubated 1h.With the fiber dewatering after the oil supply, the oven dry of drying machine.Linen fibre after the oven dry is through softener processing, and sprays emulsion, and its composition be (per kilogram flax): rape oil 12g, and NaOH3.5g, washing agent 8g, the water stirring of 120g is modulated into emulsion, puts into temperature then and be 25 ℃ storehouse 30h.After the linen fibre of the shredding machinery that utilization has a pin tooth after to heap storage carries out preliminary shredding, will carry out further shredding, compartition in its feeding carding machine again, the carding machine feed plate is raised 2.5cm, licker-in and the feed plate employing 0.12mm that spaces.
Adopt the main performance index of the linen fibre that becomes more meticulous of above prepared as follows:
The linen fibre main performance index of table 2, embodiment 2 preparations
| Fineness (Nm) | Fracture strength (cN/tex) | Intensity irregular (CV%) | Percentage elongation (%) | Percentage elongation irregular (CV%) | Average length (mm) | Pliability sth. made by twisting/dtexm | |
| Flax | ??3400 | ??7.0 | ??26.496 | ??3.34 | ??11.6 | ??30 | ??1.93 |
Embodiment 3:
Scutched flax is put into the pickling pond, and 10 kilograms of per kilogram flax waters (bath raio 1: 10) add sulfuric acid, and making sulfuric acid concentration is 1.5g/L.Solution temperature is risen to 42 ℃, take out behind the insulation 50min and linen fibre is cleaned, the pH value of linen fibre is reached about 7 with clear water; Linen fibre after cleaning is put into oxidation liquid, and bath raio adopted 1: 10, and hydrogen peroxide in the oxidation liquid (is pressed pure by pure H
2O
2Calculation) content is 5g/L, carbonate content 4g/L, sodium metasilicate content 5g/L, urea content 5g/L, JFC content 2g/L.The temperature of oxidation liquid is at the uniform velocity risen to 90 ℃ by normal temperature, and the heating-up time is controlled at 34min, and temperature arrives relief oxidation liquid insulation 2.4h; Beat with the linen fibre of mallet after, hit 5 times oxidation; With clear water the linen fibre after beaing is cleaned, flush away remains in the medicine and the impurity of fiber surface.Utilize centrifugal dehydrator that linen fibre is dewatered, in the oil emulsion that after the dehydration linen fibre is soaked, per kilogram linen fibre bobbin oil 15g, NaOH5g, washing agent 4g, stir the formation emulsion with water 10kg, with the linen fibre dipping wherein, under 80 ℃ environment, be incubated 1h.With the fiber dewatering after the oil supply, slough profit again, the oven dry of drying machine.Linen fibre after the oven dry is through softener processing, and sprays emulsion, and its composition be (per kilogram flax): rape oil 14g, and NaOH4g, washing agent 7g, the water stirring of 100g is modulated into emulsion, puts into temperature then and be 38 ℃ storehouse 43h; The linen fibre of the shredding machinery that utilizes band pin tooth after to heap storage carries out preliminary shredding, and with further careful shredding, compartition in the feeding of the fiber after the shredding carding machine, the carding machine feed plate is raised 3cm again, licker-in and the feed plate employing 4.4mm that spaces.
Adopt the main performance index of the linen fibre that becomes more meticulous of above prepared as follows:
The linen fibre main performance index of table 3, embodiment 3 preparations
| Fineness (Nm) | Fracture strength (cN/tex) | Intensity irregular (CV%) | Percentage elongation (%) | Percentage elongation irregular (CV%) | Average length (mm) | Pliability sth. made by twisting/dtexm | |
| Flax | ??3300 | ??6.5 | ??24.342 | ??3.31 | ??12.3 | ??50 | ??1.87 |
Embodiment 4:
Scutched flax is put into the pickling pond, and 10 kilograms of per kilogram flax waters (bath raio 1: 10) add sulfuric acid, and making sulfuric acid concentration is 1.2g/L.Solution temperature is risen to 45 ℃, take out behind the insulation 55min and linen fibre is cleaned, the pH value of linen fibre is reached about 7 with clear water; Linen fibre after cleaning is put into oxidation liquid, and bath raio adopted 1: 10, and hydrogen peroxide in the oxidation liquid (is pressed pure by pure H
2O
2Calculation) content is 6g/L, sodium metasilicate content 3.5g/L, potash content 2g/L, urea content 3.5g/L, JFC content 2g/L.The temperature of oxidation liquid is at the uniform velocity risen to 75 ℃ by normal temperature, and the heating-up time is controlled at 35min, and temperature arrives relief oxidation liquid insulation 2.6h; Beat with the linen fibre of mallet after, hit 5 times oxidation; With clear water the linen fibre after beaing is cleaned, flush away remains in the medicine and the impurity of fiber surface.Utilize centrifugal dehydrator that linen fibre is dewatered, in the oil emulsion that after the dehydration linen fibre is soaked, per kilogram linen fibre bobbin oil 17g, NaOH3.5g, washing agent 5g, stir the formation emulsion with water 10kg, with the linen fibre dipping wherein, under 80 ℃ environment, be incubated 1h.With the fiber dewatering after the oil supply, the oven dry of drying machine.Linen fibre after the oven dry is through softener processing, and sprays emulsion, and its composition be (per kilogram flax): tea oil 16g, and NaOH4.5g, washing agent 6g, the water stirring of 70g is modulated into emulsion, puts into temperature then and be 35 ℃ storehouse 48h.After the linen fibre of the shredding machinery that utilization has a pin tooth after to heap storage carries out preliminary shredding, will carry out further shredding, compartition in its feeding carding machine again, the carding machine feed plate is raised 2.2cm, licker-in and the feed plate employing 3.5mm that spaces.
Adopt the main performance index of the linen fibre that becomes more meticulous of above prepared as follows:
The linen fibre main performance index of table 4, embodiment 4 preparations
| Fineness (Nm) | Fracture strength (cN/tex) | Intensity irregular (CV%) | Percentage elongation (%) | Percentage elongation irregular (CV%) | Average length (mm) | Pliability sth. made by twisting/dtexm | |
| Flax | ??3200 | ??5.0 | ??27.534 | ??2.34 | ??13.6 | ??35 | ??2.23 |
Embodiment 5:
Scutched flax is put into the pickling pond, and 10 kilograms of per kilogram flax waters (bath raio 1: 10) add hydrochloric acid, and concentration of hydrochloric acid is 1.8g/L.Solution temperature is risen to 48 ℃, take out behind the insulation 58min and linen fibre is cleaned, the pH value of linen fibre is reached about 7 with clear water; Linen fibre after cleaning is put into oxidation liquid, and bath raio adopted 1: 10, and hydrogen peroxide in the oxidation liquid (is pressed pure by pure H
2O
2Calculation) content is 7g/L, sodium metasilicate content 4.5g/L, potash content 3g/L, urea content 4.5g/L, JFC content 2g/L.The temperature of oxidation liquid is at the uniform velocity risen to 85 ℃ by normal temperature, and the heating-up time is controlled at 37min, and temperature arrives relief oxidation liquid insulation 2.8h; Beat with the linen fibre of mallet after, hit 5 times oxidation; With clear water the linen fibre after beaing is cleaned, flush away remains in the medicine and the impurity of fiber surface.Utilize centrifugal dehydrator that linen fibre is dewatered, in the oil emulsion that after the dehydration linen fibre is soaked, per kilogram linen fibre bobbin oil 19g, NaOH4.5g, washing agent 6g, stir the formation emulsion with water 10kg, with the linen fibre dipping wherein, under 80 ℃ environment, be incubated 1h.With the fiber dewatering after the oil supply, the oven dry of drying machine.Linen fibre after the oven dry is through softener processing, and sprays emulsion, and its composition be (per kilogram flax): rape oil 18g, and NaOH5g, washing agent 5g, the water stirring of 80g is modulated into emulsion, puts into temperature then and be 40 ℃ storehouse 38h.After the linen fibre of the shredding machinery that utilization has a pin tooth after to heap storage carries out preliminary shredding, will carry out further shredding, compartition in its feeding carding machine again, the carding machine feed plate is raised 2.7cm, licker-in and the feed plate employing 2.7mm that spaces.
Adopt the main performance index of the linen fibre that becomes more meticulous of above prepared as follows:
The linen fibre main performance index of table 5, embodiment 5 preparations
| Fineness (Nm) | Fracture strength (cN/tex) | Intensity irregular (CV%) | Percentage elongation (%) | Percentage elongation irregular (CV%) | Average length (mm) | Pliability sth. made by twisting/dtexm | |
| Flax | ??3000 | ??5.5 | ??27.534 | ??2.34 | ??13.6 | ??40 | ??2.23 |
Embodiment 6:
Scutched flax is put into the pickling pond, and 10 kilograms of per kilogram flax waters (bath raio 1: 10) add hydrochloric acid, and concentration of hydrochloric acid is 2.1g/L.Solution temperature is risen to 38 ℃, take out behind the insulation 60min and linen fibre is cleaned, the pH value of linen fibre is reached about 7 with clear water; Linen fibre after cleaning is put into oxidation liquid, and bath raio adopted 1: 10, and hydrogen peroxide in the oxidation liquid (is pressed pure by pure H
2O
2Calculation) content is 8g/L, sodium metasilicate content 5.0g/L, potash content 4g/L, urea content 5.0g/L, JFC content 2g/L.The temperature of oxidation liquid is at the uniform velocity risen to 90 ℃ by normal temperature, and the heating-up time is controlled at 40min, and temperature arrives relief oxidation liquid insulation 3h; Beat with the linen fibre of mallet after, hit 5 times oxidation; With clear water the linen fibre after beaing is cleaned, flush away remains in the medicine and the impurity of fiber surface.Utilize centrifugal dehydrator that linen fibre is dewatered, in the oil emulsion that after the dehydration linen fibre is soaked, per kilogram linen fibre bobbin oil 20g, NaOH6g, washing agent 8g, stir the formation emulsion with water 10kg, with the linen fibre dipping wherein, under 80 ℃ environment, be incubated 1h.With the fiber dewatering after the oil supply, the oven dry of drying machine.Linen fibre after the oven dry is through softener processing, and sprays emulsion, and its composition be (per kilogram flax): tea oil 20g, and NaOH6g, washing agent 4g, the water stirring of 90g is modulated into emulsion, puts into temperature then and be 33 ℃ storehouse 34h.After the linen fibre of the shredding machinery that utilization has a pin tooth after to heap storage carries out preliminary shredding, will carry out further shredding, compartition in its feeding carding machine again, the carding machine feed plate is raised 2.9cm, licker-in and the feed plate employing 1.5mm that spaces.
Adopt the main performance index of the linen fibre that becomes more meticulous of above prepared as follows:
The linen fibre main performance index of table 6, embodiment 6 preparations
| Fineness (Nm) | Fracture strength (cN/tex) | Intensity irregular (CV%) | Percentage elongation (%) | Percentage elongation irregular (CV%) | Average length (mm) | Pliability sth. made by twisting/dtexm | |
| Flax | ??2800 | ??6.0 | ??27.534 | ??2.34 | ??13.6 | ??70 | ??2.23 |
Embodiment 7:
Scutched flax is put into the pickling pond, and 8 kilograms of per kilogram flax waters (bath raio 1: 8) add sulfuric acid, and sulfuric acid concentration is 2.3g/L.Solution temperature is risen to 35 ℃, take out behind the insulation 30min and linen fibre is cleaned, the pH value of linen fibre is reached about 7 with clear water; Linen fibre after cleaning is put into oxidation liquid, and bath raio adopted 1: 8, and hydrogen peroxide in the oxidation liquid (is pressed pure by pure H
2O
2Calculation) content is 9g/L, sodium metasilicate content 2g/L, carbonate content 5g/L, urea content 6g/L, JFC content 1g/L.The temperature of oxidation liquid is at the uniform velocity risen to 93 ℃ by normal temperature, and the heating-up time is controlled at 20min, and temperature arrives relief oxidation liquid insulation 3.2h; Beat with the linen fibre of mallet after, hit 5 times oxidation; With clear water the linen fibre after beaing is cleaned, flush away remains in the medicine and the impurity of fiber surface.Utilize centrifugal dehydrator that linen fibre is dewatered, in the oil emulsion that after the dehydration linen fibre is soaked, per kilogram linen fibre white oil 23g, NaOH1g, washing agent 9g, stir the formation emulsion with water 8kg, with the linen fibre dipping wherein, under 60 ℃ environment, be incubated 3h.With the fiber dewatering after the oil supply, the oven dry of drying machine.Linen fibre after the oven dry is through softener processing, and sprays emulsion, and its composition be (per kilogram flax): vegetable oil 5g, and NaOH1g, washing agent 1g, the water stirring of 50g is modulated into emulsion, puts into temperature then and be 20 ℃ storehouse 60h.After the linen fibre of the shredding machinery that utilization has a pin tooth after to heap storage carries out preliminary shredding, will carry out further shredding, compartition in its feeding carding machine again, the carding machine feed plate is raised 1.0cm, licker-in and the feed plate employing 7.0mm that spaces.
Adopt the main performance index of the linen fibre that becomes more meticulous of above prepared as follows:
The linen fibre main performance index of table 7, embodiment 7 preparations
| Fineness (Nm) | Fracture strength (cN/tex) | Intensity irregular (CV%) | Percentage elongation (%) | Percentage elongation irregular (CV%) | Average length (mm) | Pliability sth. made by twisting/dtexm | |
| Flax | ??2600 | ??4.5 | ??27.534 | ??2.34 | ??13.6 | ??90 | ??2.23 |
Embodiment 8:
Scutched flax is put into the pickling pond, and 9 kilograms of per kilogram flax waters (bath raio 1: 9) add oxalic acid, and concentration of oxalic acid is 2.4g/L.Solution temperature is risen to 70 ℃, take out behind the insulation 70min and linen fibre is cleaned, the pH value of linen fibre is reached about 7 with clear water; Linen fibre after cleaning is put into oxidation liquid, and bath raio adopted 1: 9, and hydrogen peroxide in the oxidation liquid (is pressed pure by pure H
2O
2Calculation) content is 10g/L, sodium metasilicate content 6g/L, carbonate content 6g/L, urea content 7g/L, JFC content 3g/L.The temperature of oxidation liquid is at the uniform velocity risen to 95 ℃ by normal temperature, and the heating-up time is controlled at 45min, and temperature arrives relief oxidation liquid insulation 3.5h; Beat with the linen fibre of mallet after, hit 5 times oxidation; With clear water the linen fibre after beaing is cleaned, flush away remains in the medicine and the impurity of fiber surface.Utilize centrifugal dehydrator that linen fibre is dewatered, in the oil emulsion that after the dehydration linen fibre is soaked, per kilogram linen fibre white oil 27g, NaOH2g, washing agent 9.5g, stir the formation emulsion with water 9kg, with the linen fibre dipping wherein, under 70 ℃ environment, be incubated 2h.With the fiber dewatering after the oil supply, the oven dry of drying machine.Linen fibre after the oven dry is through softener processing, and sprays emulsion, and its composition be (per kilogram flax): vegetable oil 8g, and NaOH2g, washing agent 9g, the water stirring of 200g is modulated into emulsion, puts into temperature then and be 60 ℃ storehouse 52h.After the linen fibre of the shredding machinery that utilization has a pin tooth after to heap storage carries out preliminary shredding, will carry out further shredding, compartition in its feeding carding machine again, the carding machine feed plate is raised 5.0cm, licker-in and the feed plate employing 7.5mm that spaces.
Adopt the main performance index of the linen fibre that becomes more meticulous of above prepared as follows:
The linen fibre main performance index of table 8, embodiment 8 preparations
| Fineness (Nm) | Fracture strength (cN/tex) | Intensity irregular (CV%) | Percentage elongation (%) | Percentage elongation irregular (CV%) | Average length (mm) | Pliability sth. made by twisting/dtexm | |
| Flax | ??2300 | ??4.0 | ??27.534 | ??2.34 | ??13.6 | ??85 | ??2.23 |
Embodiment 9:
Scutched flax is put into the pickling pond, and 11 kilograms of per kilogram flax waters (bath raio 1: 11) add sulfuric acid, and sulfuric acid concentration is 3.0g/L.Solution temperature is risen to 60 ℃, take out behind the insulation 50min and linen fibre is cleaned, the pH value of linen fibre is reached about 7 with clear water; Linen fibre after cleaning is put into oxidation liquid, and bath raio adopted 1: 11, and hydrogen peroxide in the oxidation liquid (is pressed pure by pure H
2O
2Calculation) content is 11g/L, sodium metasilicate content 7g/L, potash content 5g/L, urea content 8g/L, JFC content 4g/L.The temperature of oxidation liquid is at the uniform velocity risen to 97 ℃ by normal temperature, and the heating-up time is controlled at 50min, and temperature arrives relief oxidation liquid insulation 3.8h; Beat with the linen fibre of mallet after, hit 5 times oxidation; With clear water the linen fibre after beaing is cleaned, flush away remains in the medicine and the impurity of fiber surface.Utilize centrifugal dehydrator that linen fibre is dewatered, in the oil emulsion that after the dehydration linen fibre is soaked, per kilogram linen fibre white oil 35g, NaOH7g, washing agent 9.0g, stir the formation emulsion with water 11kg, with the linen fibre dipping wherein, under 90 ℃ environment, be incubated 2.5h.With the fiber dewatering after the oil supply, the oven dry of drying machine.Linen fibre after the oven dry is through softener processing, and sprays emulsion, and its composition be (per kilogram flax): vegetable oil 30g, and NaOH7g, washing agent 11g, the water stirring of 180g is modulated into emulsion, puts into temperature then and be 55 ℃ storehouse 15h.After the linen fibre of the shredding machinery that utilization has a pin tooth after to heap storage carries out preliminary shredding, will carry out further shredding, compartition in its feeding carding machine again, the carding machine feed plate is raised 4.0cm, licker-in and the feed plate employing 6.5mm that spaces.
Adopt the main performance index of the linen fibre that becomes more meticulous of above prepared as follows:
The linen fibre main performance index of table 9, embodiment 9 preparations
| Fineness (Nm) | Fracture strength (cN/tex) | Intensity irregular (CV%) | Percentage elongation (%) | Percentage elongation irregular (CV%) | Average length (mm) | Pliability sth. made by twisting/dtexm | |
| Flax | ??2000 | ??3.5 | ??27.534 | ??2.34 | ??13.6 | ??90 | ??2.23 |
Embodiment 10:
Scutched flax is put into the pickling pond, and 12 kilograms of per kilogram flax waters (bath raio 1: 12) add oxalic acid, and concentration of oxalic acid is 2.8g/L.Solution temperature is risen to 65 ℃, take out behind the insulation 80min and linen fibre is cleaned, the pH value of linen fibre is reached about 7 with clear water; Linen fibre after cleaning is put into oxidation liquid, and bath raio adopted 1: 12, and hydrogen peroxide in the oxidation liquid (is pressed pure by pure H
2O
2Calculation) content is 12g/L, sodium metasilicate content 8g/L, potash content 6g/L, urea content 6.5g/L, JFC content 4g/L.The temperature of oxidation liquid is at the uniform velocity risen to 100 ℃ by normal temperature, and the heating-up time is controlled at 60min, and temperature arrives relief oxidation liquid insulation 4.0h; Beat with the linen fibre of mallet after, hit 5 times oxidation; With clear water the linen fibre after beaing is cleaned, flush away remains in the medicine and the impurity of fiber surface.Utilize centrifugal dehydrator that linen fibre is dewatered, in the oil emulsion that after the dehydration linen fibre is soaked, per kilogram linen fibre white oil 40g, NaOH8g, washing agent 10.0g, stir the formation emulsion with water 12kg, with the linen fibre dipping wherein, under 100 ℃ environment, be incubated 0.5h.With the fiber dewatering after the oil supply, the oven dry of drying machine.Linen fibre after the oven dry is through softener processing, and sprays emulsion, and its composition be (per kilogram flax): vegetable oil 40g, and NaOH10g, washing agent 12g, the water stirring of 60g is modulated into emulsion, puts into temperature then and be 50 ℃ storehouse 20h.After the linen fibre of the shredding machinery that utilization has a pin tooth after to heap storage carries out preliminary shredding, will carry out further shredding, compartition in its feeding carding machine again, the carding machine feed plate is raised 4.5cm, licker-in and the feed plate employing 0.1mm that spaces.
Adopt the main performance index of the linen fibre that becomes more meticulous of above prepared as follows:
The linen fibre main performance index of table 10, embodiment 10 preparations
| Fineness (Nm) | Fracture strength (cN/tex) | Intensity irregular (CV%) | Percentage elongation (%) | Percentage elongation irregular (CV%) | Average length (mm) | Pliability sth. made by twisting/dtexm | |
| Flax | ??1500 | ??3.0 | ??27.534 | ??2.34 | ??13.6 | ??70 | ??2.23 |
With the processing of spinning of above-mentioned linen fibre through process of refinement.
Embodiment 11
The linen fibre of being produced spins and blended yarn by following spinning line spinning high-count flax pure fibers:
Pure spinning: opening or cleaning → comb and parallel cotton fibers prior to spinning → (in advance also → combing) → drafting → rove → spun yarn → back processing.
Notes: in the above-mentioned flow process, in advance also → combing process employing when high-count yarn spun (pure spinning more than 50 public, blending is more than 60 public); When spinning 60 public following fiber crops/cotton yarn, cotton can not combing; Chemical fibre is all without combing.
Its main quality index of the pure spinning of the linen fibre that becomes more meticulous is as follows:
The pure spinning main performance index of flax of table 11, embodiment 11 preparations
| Line density (Nm) | Intensity (cN/tex) | Percentage elongation (%) | Bar is done CV (%) | Km details (30%) | Km slubbing (+50%) | Km fiber crops grains (+200%) | |
| Linen yarn | ??60 | ??13.14 | ??2.45 | ??23.4 | ??1335 | ??1218 | ??780 |
Its main quality index of linen fibre blended yarn that becomes more meticulous is as follows:
The flax blended spinning main performance index of table 12, embodiment 11 preparations
| Line density (Nm) | Intensity (cN/tex) | Percentage elongation (%) | Bar is done CV (%) | Km details (30%) | Km slubbing (+50%) | Km fiber crops grains (+200%) | |
| Flax 55/ cotton 45 | ??120 | ??16.2 | ??3.05 | ??24.6 | ??1019 | ??2259 | ??2622 |
| Flax 70/ viscose glue 30 | ??67 | ??7.92 | ??1.76 | ??22.7 | ??715 | ??935 | ??455 |
Embodiment 12
The linen fibre of being produced spins flax/ramie blending yarn by the ramie spinning process flow:
Flax 50/ ramie 50 pure blended yarn main performance index of 36 public of table 13, embodiment 12 preparations
| Line density (Nm) | Intensity (cN/tex) | Percentage elongation (%) | Bar is done CV (%) | Km details (30%) | Km slubbing (+50%) | Km fiber crops grains (+200%) | |
| Flax 50/ ramie 50 | ??36 | ??18.5 | ??3.32 | ??25.2 | ??537 | ??860 | ??1180 |
The present invention also provides some comparative examples, has advantage so that preparation method of the present invention to be described:
Comparative example 1
The linen fibre main performance index of table 14, distinct methods preparation
| Fineness (Nm) | Fracture strength (cN/tex) | Intensity irregular (CV%) | Percentage elongation (%) | Percentage elongation irregular (CV%) | Pliability sth. made by twisting/dtexm | |
| ??1 | ??900 | ??14.53 | ??30.953 | ??2.56 | ??25.2 | ??1.24 |
| ??2 | ??1463 | ??4.75 | ??28.341 | ??2.78 | ??15.5 | ??1.53 |
| ??3 | ??1253 | ??4.42 | ??28.712 | ??2.13 | ??16.8 | ??1.42 |
| ??4 | ??3200 | ??5.0 | ??27.534 | ??2.34 | ??13.6 | ??2.23 |
Wherein 1 is to prepare according to patent application 88102614 embodiment 1 method;
Wherein 2 is to prepare according to patent application 200610031004 embodiment 1 method;
Wherein 3 is to prepare according to patent application 200610031004 embodiment 2 methods;
Wherein 4 is to prepare according to the embodiment of the invention 4 methods.
Comparative example 2
It is according to embodiment 1 method that the influence of different oxygenation parameters to product quality, this comparative example are taked in the explanation of this comparative example, and concrete parameter is adjusted.When investigating a parameter, other parameter immobilizes.For example when investigating the influencing of sodium carbonate amount, other parameter such as sodium metasilicate, urea etc. all adopt certain fixed value among definite the present invention program.
Table 15, different oxygenation parameters are to the influence (Nm) of linen fibre fineness
| Consumption | ??1g | ??2g | ??3g | ??4g | ??6g | ??8g | ??9g |
| Sodium carbonate | ??2207 | ??2603 | ??2750 | ??3207 | ??1672 | ??1426 | ??1390 |
| Sodium metasilicate | ??1750 | ??1975 | ??2522 | ??3512 | ??1942 | ??1523 | ??1245 |
| Urea | ??1560 | ??1753 | ??2492 | ??3218 | ??1795 | ??1428 | ??1415 |
| ??JFC | ??1618 | ??2482 | ??1852 | ??1756 | ??1472 | ??1428 | ??1430 |
Above data declaration when adopting preparation method of the present invention, can prepare the high linen fibre of fineness, and the linen fibre that preferred version obtains has higher fineness.
Table 16, different oxygenation parameters are to the influence (cN/tex) of linen fibre fracture strength
| Consumption | ??1g | ??2g | ??3g | ??4g | ??6g | ??8g | ??9g |
| Sodium carbonate | ??4.72 | ??4.85 | ??4.95 | ??4.89 | ??4.76 | ??4.54 | ??3.95 |
| Sodium metasilicate | ??4.71 | ??4.87 | ??4.92 | ??4.82 | ??4.72 | ??4.73 | ??4.51 |
| Urea | ??4.52 | ??4.84 | ??4.93 | ??4.87 | ??4.75 | ??4.70 | ??4.23 |
| ??JFC | ??4.68 | ??4.89 | ??4.82 | ??4.78 | ??4.52 | ??4.28 | ??3.75 |
Above data declaration when adopting preparation method of the present invention, can prepare high-intensity linen fibre, and the linen fibre that preferred version obtains has higher intensity.
In addition, the scope of the parameters of technical scheme of the present invention is all carried out combination experiment one by one respectively, no matter how parameter makes up is carried out, the fibre strength that obtains, fineness all can meet above-mentioned rule, in any case be the described parameter area combination of technical solution of the present invention, the linen fibre performance that obtains all is better than the parameter outside the scope, and the linen fibre performance that preferred parameter area obtains can be able to further lifting.Because length is limit, the present invention enumerates no longer one by one for the experimental data of other combinations.
Claims (10)
1. a linen fibre is characterized in that, described linen fibre intensity is that 3.0～8.0cN/dtex, fineness are 1500～3500 public; Being preferably intensity 4.0～7.0cN/dtex, fineness is 1500～3000 public; More preferably intensity 4.5～6.5cN/dtex, fineness are 1800～2800 public; Most preferably being intensity 5.0～6.0cN/dtex, fineness is 2300～2700 public.
2. linen fibre according to claim 1 is characterized in that the length of linen fibre is 20～100mm, is preferably 30～80mm, most preferably is 40～60mm.
3. the preparation method of claim 1 or 2 described linen fibres, comprise pickling, washing, oxidation, beat fibre, oil supply, de-oiled water, softening, oil supply humidification, heap storage and mechanical shredding step, it is characterized in that, described oxidation step is, every kilogram of linen fibre water 8～12kg, in water, add sodium carbonate or potash, sodium metasilicate, urea and penetrating agent JFC earlier, addition contains sodium carbonate or potash 2～6g, sodium metasilicate 2～8g, urea 2～8g and penetrating agent JFC 1～4g for adding the every premium on currency in back, and the dissolving back adds H fully
2O
2, H
2O
2Addition is with pure H
2O
2Count the every premium on currency in adding back and contain H
2O
23～12g; Be preferably every kilogram of linen fibre water 10kg, every premium on currency contains sodium carbonate or potash 2～4g, sodium metasilicate 3～5g, urea 3～5g, penetrating agent JFC 2g, H
2O
2Addition is with pure H
2O
2Count the every premium on currency in adding back and contain H
2O
23～8g.
4. preparation method according to claim 3 is characterized in that, described oxidation step at the uniform velocity is warming up to 70～100 ℃ for flax is put into oxidation liquid from room temperature, and the heating-up time is controlled at 20～60min, and oxidation time is 2.0～4.0 hours; Be preferably from room temperature and at the uniform velocity be warming up to 70～90 ℃, the heating-up time is controlled at 30～40min, and oxidation time is 2.0～3.0 hours.
5. preparation method according to claim 3, it is characterized in that, the concentration of acid is 1～3g/L in the described pickling step, temperature is at 35～70 ℃, and bath raio is 1: 8～1: 12, and the pickling time is 30～80min, the concentration that is preferably acid is 1～2g/L, temperature is at 40～50 ℃, and bath raio is 1: 10, and the pickling time is 40～60min.
6. preparation method according to claim 3 is characterized in that, finish is a machinery oil in the described oil supply step, is preferably bobbin oil or white oil, most preferably is bobbin oil; Every kilogram of linen fibre is modulated into emulsion with machinery oil 10～40g, with NaOH 1～8g, washing agent 2～10g with the stirring of 8～12kg water, with the linen fibre dipping wherein, is incubated 0.5～3h under 60～100 ℃ environment; Be preferably every kilogram of linen fibre with machinery oil 10～20g, with NaOH 3～6g, washing agent 2～8g, be modulated into emulsion, with the linen fibre dipping wherein, under 80 ℃ environment, be incubated 1h with the stirring of 10kg water.
7. preparation method according to claim 3 is characterized in that, adopts vegetable oil in the described oil supply humidification step, is preferably tea oil or rape oil; Vegetable oil, NaOH, washing agent and water stirred be modulated into emulsion, equably emulsion is sprayed on the linen fibre of being exported at the output of softener; Every kilogram of linen fibre is with vegetable oil 5～40g, with NaOH 1～10g, washing agent 1～12g, and water 50～200g is preferably every kilogram of linen fibre with vegetable oil 10～20g, with NaOH3～6g, washing agent 2～8g, water 70～150g.
8. preparation method according to claim 3 is characterized in that, described heap storage is 20～60 ℃ of temperature, 15～60 hours time; Be preferably 25～40 ℃ of temperature, 24～48 hours time.
9. preparation method according to claim 3 is characterized in that, licker-in and feed plate space and adopt 0.10～7.50mm in the described mechanical shredding step, are preferably 0.12～5.50mm.
10. preparation method according to claim 9 is characterized in that, the feed plate of carding machine is raised 1～5cm than machine frame in the described mechanical shredding step, is preferably 2～3cm.
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| CN102888659B (en) * | 2012-11-05 | 2015-01-07 | 东华大学 | Preparation method of polygonum multiflorum fiber used for spinning |
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| FR3053981A1 (en) * | 2016-07-13 | 2018-01-19 | Van Robaeys Freres | PROCESS FOR TREATING FLAX, LINEN AND LINEN FIBER |
| CN107938079A (en) * | 2017-12-22 | 2018-04-20 | 吕元伟 | The processing method that a kind of rain and dew hemp spinning yarn is knitted |
| CN107938079B (en) * | 2017-12-22 | 2020-07-31 | 佛山市摩力克家居布业有限公司 | Processing method for spinning and weaving rain and dew hemp |
| CN109402783A (en) * | 2018-11-07 | 2019-03-01 | 华祥（中国）高纤有限公司 | A kind of imitative flax fiber, preparation method and applications |
| WO2022095102A1 (en) * | 2020-11-09 | 2022-05-12 | 苏州纳昇源新材料科技有限公司 | Method for preparing flax fiber-based multi-scale cellulose nanofibers |
| CN115198523A (en) * | 2022-07-21 | 2022-10-18 | 东华大学 | Oil feeding, humidifying and health preserving process for dry spinning of flax short fibers |
| CN115198523B (en) * | 2022-07-21 | 2023-08-22 | 东华大学 | Flax short fiber dry spinning oil-feeding humidifying health-preserving process |
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