EP3218535A1 - Procédé d'obtention de fibres à partir d'au moins une tige de plante - Google Patents

Procédé d'obtention de fibres à partir d'au moins une tige de plante

Info

Publication number
EP3218535A1
EP3218535A1 EP15734601.6A EP15734601A EP3218535A1 EP 3218535 A1 EP3218535 A1 EP 3218535A1 EP 15734601 A EP15734601 A EP 15734601A EP 3218535 A1 EP3218535 A1 EP 3218535A1
Authority
EP
European Patent Office
Prior art keywords
plant
speed
jet
fibers
velocity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP15734601.6A
Other languages
German (de)
English (en)
Other versions
EP3218535B1 (fr
Inventor
Egon Heger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mattes and Ammann GmbH and Co KG
Original Assignee
Mattes and Ammann GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mattes and Ammann GmbH and Co KG filed Critical Mattes and Ammann GmbH and Co KG
Publication of EP3218535A1 publication Critical patent/EP3218535A1/fr
Application granted granted Critical
Publication of EP3218535B1 publication Critical patent/EP3218535B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01B—MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
    • D01B1/00—Mechanical separation of fibres from plant material, e.g. seeds, leaves, stalks
    • D01B1/10—Separating vegetable fibres from stalks or leaves
    • D01B1/14—Breaking or scutching, e.g. of flax; Decorticating
    • D01B1/30—Details of machines
    • D01B1/40—Arrangements for disposing of non-fibrous materials
    • D01B1/42—Arrangements for disposing of non-fibrous materials employing liquids
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01B—MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
    • D01B1/00—Mechanical separation of fibres from plant material, e.g. seeds, leaves, stalks
    • D01B1/10—Separating vegetable fibres from stalks or leaves
    • D01B1/14—Breaking or scutching, e.g. of flax; Decorticating
    • 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
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01B—MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
    • D01B1/00—Mechanical separation of fibres from plant material, e.g. seeds, leaves, stalks
    • D01B1/10—Separating vegetable fibres from stalks or leaves
    • D01B1/14—Breaking or scutching, e.g. of flax; Decorticating
    • D01B1/22—Breaking or scutching, e.g. of flax; Decorticating with crushing or breaking rollers or plates

Definitions

  • the present invention relates to a method for obtaining fibers from at least one plant stem or from plant bast.
  • a biological pre-digestion can be carried out, for example, over a field roast or a water roast which is barely used due to its negative environmental impact.
  • the use of microorganisms from DE 10 2006 01 3 657 is also known.
  • chemical pre-digestions are known, for example from DE 1 1 2005 001 792 or DE 1 99 05 1 21 or WO 2006/01 0564 or DE 10 2007 030 576.
  • the object of the present invention is to provide a corresponding method which is superior to the conventional one and, with less energy input and reduced process waste, is suitable for obtaining fibers for further processing, even in the case of plant stalks which are difficult to break up. Particular importance is attached to the fact that the fibers have a certain length and in particular a certain fineness and are buoyant under certain conditions.
  • the production according to the invention is to be understood, in particular, as meaning at least partial digestion and at least partial separation of the fibers from other constituents.
  • the at least one plant stem or at least one unit of plant bast with or without cuticle is cultivated with at least one plant stem.
  • the at least one plant stem or the at least one unit of plantbast with or without cuticle has a moisture content of at least 25% and / or plant glues, in particular the pectin and the hemicelluloses, the plant stem or the unit of vegetable bud Begin treatment with the high-speed liquid jet or high-speed gas jet in the swollen state.
  • a unit of vegetable bast or a base unit is to be understood as meaning a coherent structure of vegetable bast which, in terms of its extent, corresponds in particular to a bark area extending over the majority, in particular at least 30%, in particular at least 50% of the plant length.
  • the high-speed jet causes, in particular, different, partially overlapping effects: a. Dissolving water-soluble (short-chain) sugars and / or b. Dissolving pectins and / or c. Suspending pectins by hydromechanical action and / or d. Destruction of cellulose / hemicellulose compound by hydromechanical action and in particular suspension of hemicellulose.
  • the high-speed jet in particular causes the supply of liquid whose solubility product has not yet been reached with regard to the compound in question.
  • the influence of temperature the warmer the solvent, the higher the solubility product.
  • the effect increases, since the high-speed jet initially only has to create a beginning of the separation in the bast cylinder and subsequently becomes simpler in the further course, especially in the longitudinal direction of the plant stem or unit continuous separation allows or a certain part of the bark does not need to be freed from pectin to peel off.
  • gelatinous pectins in particular of bark and / or of fiber material, are in particular sheared out and / or suspended by friction and suspended or entrained in the liquid or gas.
  • the high-speed jet in particular causes a hydromechanical rupture of cell and fiber structures by shear, Friction and traction induced by static friction.
  • the resulting fragments of cells and fibers are suspended and can be separated by sieves from the pulp.
  • the at least one plant stem or the at least one unit of bast with / without cuticle has a moisture content of at least 25%, since in this state plant glues, in particular pectin and hemicelluloses, are present and swollen or plant glues, in particular pectin and hemicelluloses of the plant stem or the unit of bast at the beginning of the treatment with the high-speed liquid jet or high-speed gas jet, are swollen or swollen.
  • the advantages of the invention use effectively and it can be a digestion and in particular an at least partial separation of plant fibers. In this case, a considerable effect can be achieved with comparatively little liquid and / or gas in the high-speed jet.
  • the energy input is low, especially when using a liquid jet due to the low compressibility, for example, of water.
  • the high-speed jet thereby advantageously results in a separation of woody constituents, fibers and cuticles as well as washed out and dissolved pectins and hemicelluloses.
  • the lignified component can be obtained in its entire length and so easily separated.
  • the cuticle and the bark parenchyma are in particular cut into small pieces.
  • Sieves or other separation methods allow the fibers to be separated from the other constituents, in particular in the wet or moist state.
  • a condition suitable for the invention may be present in particular in the case of fresh or green plant stems or units and / or plant stems or units pre-digested and / or soaked in liquid, in particular water, in particular in the presence of microorganisms.
  • the plant stems or units are preferably subjected to a water-roasting or to a moist or wet pre-digestion before the treatment and are not dried between the water-roasting or the pre-digestion and the beginning of the treatment. However, it may be a removal of the unbound liquid, for example by drying the surface or by pressing.
  • the water roasting or the pre-digestion can be cold or warm.
  • the high-speed jet is directed onto the plant stem at an angle in an angular range of 30-100 °, especially 30-95 °, between the longitudinal extent of the plant stem or the unit and main direction of movement or direction of movement of the liquid or gas in the high velocity jet.
  • the high-speed jet covers an angular range with an angular width of at least 20 °, and also an angle between 90 ° and 100 ° between the longitudinal extension of the plant stem or the unit and direction of movement of the liquid.
  • the plant stem or unit and the high velocity liquid jet or high velocity gas jet are moved relative to each other in the direction of the longitudinal extent of the plant stem or unit at a first rate.
  • either plant stem or the high-speed liquid jet or high-velocity gas jet or both are moved to move relative to each other.
  • the second velocity represents the high speed.
  • the gas or liquid particles in the high velocity liquid jet or high velocity gas jet are at a second velocity within the high velocity liquid jet
  • the high velocity liquid jet or high velocity gas jet itself
  • High speed gas jet advances, moving at a first speed relative to the plant stem or unit. This can be done, for example, by moving the plant stem relative to the inherently high velocity liquid jet or high velocity gas jet.
  • the relative movement or first speed is in this case, in particular, parallel to the longitudinal extent of the plant stem or the unit plant bast.
  • the nozzle may rest and the plant stem or unit may be moved, particularly to be moved toward the high-speed liquid jet or high-velocity gas jet, then the high-velocity liquid jet or high-velocity gas jet by agitation of the plant stem at least partially sweeps along the length of the plant stem, and in particular the plant stem then exits the high velocity liquid jet or high velocity gas jet on the other side of the high velocity liquid jet or high velocity gas jet.
  • the first speed is parallel to a speed component of the second speed, but in particular is not parallel to the second speed.
  • Parallelism is to be understood as orientation in the same direction. Otherwise, this would speak of antiparallel.
  • the first and the second speed are partly superimposed upon impact of the water on the plant stem and can be ensured by the corresponding angle approach a particularly effective peeling the plant stem.
  • the plant stem can be peeled effectively.
  • the cuticle and / or the wooden component is partially or completely peeled off by the high-speed liquid jet or high-speed gas jet and, in particular, the fibers are released from the bast.
  • the at least one plant stem is a stalk from the group of Eurosides I, in particular a hemp and / or nettle plant. Nettle, ramie, hemp, flax are particularly preferred. Likewise, other bast fiber plants with a pronounced wood part are successfully treatable by the method.
  • a pronounced wood part is to be understood as the state in which the wood part below the bark is so stably or physiologically old or in a wide mass ratio to the fiber part that it does not crumble under the influence of the HD beam but remains intact .
  • the method can be used very effectively and the fibers are particularly good reusable. It is preferred to use hemp and nettle plant stem or elongated sections thereof. For ramie, it is preferred to use raffle separate units from wood for particularly good fiber qualities. For inferior fiber qualities of the ramie or a rami growing of inferior quality advantageously also pre-broken intact stems are used.
  • the plant stems or units are undried plant stems or units.
  • these are young plant stems or units, in particular those which are not older than 9 months, in particular not older than 5 months. Under age, this is not a storage period but the duration of growth.
  • particular plants are harvested at least once a year, but preferably several times a year or at least twice, and fed to the process.
  • the plant stalk or the unit is a defoliated plant stem or base unit or includes the method before the high-pressure treatment and in particular also before an optionally
  • the method is a method for obtaining spinnable fibers from at least one plant stem.
  • a yarn can be spun from it and then a textile fabric can be produced.
  • the process is carried out as a wet process and thus the plant stems are not dried until the moist fibers are obtained.
  • the fibers are sorted in the wet state in length groups, in particular processed in the wet state to a band, stretched and / or spun.
  • the at least one high-speed liquid jet or high-velocity gas jet is at least 70%, in particular at least 90%, by a relative movement at the first speed in one operation over at least 40%, in particular overall, ie also using a plurality of high-speed jets or multiple treatments %, the length, in particular over the entire length of the convincedstän- gel or the base unit is performed. In such a procedure, a particularly effective peeling / unlocking of plant stem or the base unit can be achieved.
  • the at least one high-speed liquid jet or high-velocity gas jet is produced by passing a water volume under at least 1 bar, in particular at least 30 bar, in particular at least 50 bar pressure through a nozzle. It can a high water flow, a low pressure and a high pressure to compensate for a low water flow.
  • a cross-sectional tapering of the water volume, in particular by a factor of 2 to 20, is achieved by means of this nozzle.
  • a high-speed liquid jet or high-velocity gas jet can be generated from a pressurized volume of water.
  • the nozzle is one which has a clear width of at least 1 mm in one direction, in particular 1.5 mm.
  • the clear width in one direction is preferably 0.01 to 0.5 mm.
  • the shape of the nozzle can be formed both rectangular and circular or oval or have a different shape. It is particularly preferred, for example, to form a nozzle which has a circular arc section as a basic shape and in the radial direction has a clear width of 0.5 to 1, 5 mm. Particularly preferred is a rotating point-shaped high-speed jet.
  • Combinations of different high-speed jets are particularly preferred by using different nozzle types, for example at least one rotating nozzle, the beam or in an angular range between 30 ° and 95 °, at least at an angle between 70 ° and 95 °, to the longitudinal extension of the plant stem or the Bastvenez on the plant stem or the base unit acts, together with at least one fan nozzle, the or their beam in particular with an angle or angular range of 10 ° - 40 ° transverse to the longitudinal extent, ie in an angle or angle range of 50 ° to 80 ° Longitudinal extension, the plant stem or the base unit acts, and in particular at least one opposite to a direction of movement, which is selected parallel to the longitudinal extension of the plant stem or the base unit, and in particular with an angle or angular range of 1 0 ° to 30 ° to the longitudinal extension of the plant stem els or the base unit and in particular at an angle of 80 ° - 100 ° to the first high-speed jet acting discharge or purging jet of a nozzle
  • the high-speed jet contains water or water vapor. With particular advantage, it is a high- speed water jet. With particular advantage, the high-speed jet at a temperature of at least 40 ° C, in particular at least 70 ° C.
  • a water amount of 0, 1 to 4 cm 3 is particularly preferred to use per cm of plant stem length in centimeters, a water amount of 0, 1 to 4 cm 3 as a high-speed liquid jet or high-velocity gas jet.
  • the at least one high-speed liquid jet or high-velocity gas jet prefer a second water velocity in the high-speed liquid jet or high-velocity gas jet, in particular at the point of contact with the plant stem, of more than 30 m per second, in particular more than 50 m per second of more than 100 m per second.
  • the high-speed liquid jet or high-velocity gas jet in particular has an opening angle of at least in one spatial direction of less than 30 °, in particular less than 10 °, in particular in the direction of the radius of the plant stem.
  • the high-speed liquid jet or high-velocity gas jet has, in particular at the point of contact with the plant stalk, a dimension in the cross section of at least in one direction perpendicular to the second velocity of less than 3 mm, in particular less than 1 mm, in particular in the direction parallel to the radius of the plant stem , For this, it is sufficient to consider the smallest cross section passing through 90% of the water of the high-speed liquid jet or high-velocity gas jet. If the cross-section, as preferred, is bent, the distance in the radial direction from the cross-sectional boundaries to an outwardly extended radius of the plant stem is to be considered as an extension.
  • Particularly preferred is a first speed of 5 to 1 5 cm / s
  • the high velocity liquid jets or high velocity gas jets are at an angle of at least 90 °, more preferably at least 1 20 °, between their second speeds.
  • the plant stem can be treated on different sides with the high speed liquid jet or high velocity gas jets.
  • an angle of at least 90 °, in particular of at least 1 20 °, must be formed between their second speeds.
  • three high velocity liquid jets or high velocity gas jets with an included angle between their second speeds of 1 20 ° each, or four high speed liquid jets or high velocity gas jets having an angle of 90 ° each between their second speeds. It is also possible to use two high-speed liquid jet or high-speed gas jets whose angle between the second velocities is selected to be in particular 1 80 °.
  • the treatment can take place simultaneously, successively and / or temporally overlapping. It can also be done at the same position in the longitudinal direction of the plant stem but at different points on the circumference. However, it is preferred to perform the treatment at slightly offset points in the longitudinal direction, in particular by 1 to 1 5 mm offset points in the longitudinal direction temporally overlapping. In this case, we chose the temporal overlap as large as possible. In particular, it is preferable to use the high-speed liquid jets or high-speed gas jets to align so that they process a plant stalk guided past you at the intervals mentioned and processing takes place in each case while the plant stem passes through the respective high-speed liquid jet or high-speed gas jet.
  • the plant stem is treated multiple times by the same high-speed liquid jet or high-speed gas jet and rotated about its longitudinal axis between these treatments.
  • a rotation of at least 90 °, in particular of 1 20 ° is preferred. If more than two passages take place, the rotation as a whole must reach the aforementioned angle dimensions. So it is preferable to perform a rotation by 1 80 ° in a two-pass passage, by 1 20 ° in triple passage, by quadruple passage by 90 °, etc. Thus, the total is rotated by 360 °.
  • the plant stem is treated at least 1 80 ° of its circumference with the at least one high-speed liquid jet or high-speed gas jet.
  • This can be achieved by means of various segments over the circular arc, which together make 1 80 ° or take place on a continuous circular arc section, ie a semicircular section.
  • a division into several segments, which together result in at least 1 80 ° is preferred. So it is preferred, for example, to provide at least three or four segments, which together make 1 80 °, and in particular evenly distributed and each an equal circular arc portion are arranged overlapping.
  • covering the circumference of the plant stem over at least 270 ° is preferred for particularly complete recovery of fibers and pure fibers.
  • the plant stem or the unit at least temporarily during treatment with the at least one high-speed liquid jet or high-speed gas jet, in particular during the entire time of treatment with the at least one High-speed liquid jet or high-speed gas jet is guided and / or held. It has proved particularly advantageous to guide and / or hold the at least one plant stem or the unit individually or to provide a spacing, in particular transversely to the longitudinal extent of the plant stems or units, between a plurality of plant stalks or units. In particular, holding and / or guiding at least two sides and in particular fixing in all three spatial directions, for example by pressing on grids and / or sieving from two sides, is preferred.
  • Guiding or holding, whether individually or in droves, can be achieved, for example, by means of grippers, lateral boundaries, pinching, for example between several conveying means or via rollers.
  • a stalk can be grasped by a gripper and subjected to treatment.
  • a plant stem is held and guided by two or more rollers, in particular transported in its longitudinal direction and is thereby subjected to the treatment.
  • two or three rollers may be used, which are arranged so that they can promote a plant stems placed between them by rotation of the rollers.
  • the rollers are advantageously pressed against the plant stems and keep it safe.
  • the first speed or a part of the first speed can be achieved. It is also possible to insert plant stems into corresponding boundaries, in particular lateral boundary elements.
  • a plurality of elevations which run parallel, form corresponding grooves, in which the plant stems are inserted. These can also be pressed in whole or in part, in particular laterally, against the plant stem to hold it. These grooves can also have further limitations, which run in particular perpendicular to the grooves and prevent slippage of the plant stems in the direction of the grooves. It is also possible, by means of appropriate pressurizing agents, to act on the plant stems which are placed on a base and thus, for example, to produce a variety of plant stalks. number of plant stems fixed on a surface. Such a surface or base can also be a conveyor belt on which the plant stalks can be pressed on and fixedly moved.
  • Fixation or retention can be achieved, for example, by means of elongate elements, for example strips or rods or tubes, which are pressed transversely to the longitudinal extensions of the plant stems. These have in the direction of the longitudinal extension of the plant stems, in particular an extent of less than 50 mm, in particular less than 10 mm. It is also possible to provide smaller Advicepressemia, which are for example L- or U-shaped, so as to plant stems, even individually, to press on a surface and hold accordingly. This surface can in turn be a conveying element. It is also possible, by pressing of funding or holding means such as gratings or screens, from two sides, for example by conveyor belts, which in particular have recesses, to get trapped plant stems. If a plurality of plant stems or units are held, gripped, guided and / or transported during the treatment with the at least one high-speed jet, they are aligned in particular in a common longitudinal direction before they are held or fixed accordingly.
  • elongate elements for example strips or rods or tubes,
  • a multiplicity of plant stems or units arranged in parallel, in particular on a conveyor belt, in particular held, is treated with the at least one high-speed liquid jet or high-velocity gas jet, in particular at the same time.
  • each plant stem or unit it is preferable to grip and / or guide each plant stem or unit individually.
  • a guide on corresponding roles is preferred.
  • this discharge stream or discharge flow has a direction which coincides with the longitudinal extent of the plant stem or encloses an angle of -25 ° to 25 °, preferably -10 ° to + 10 °, with the latter.
  • this discharge stream or discharge stream has an angle of at least one high-speed jet of 40 ° to 90 °.
  • the plant stem or the base unit is moved parallel to the longitudinal extension and counter to the discharge or flushing jet and / or a discharge or flushing flow.
  • the method includes a pre-digestion of the plant stems prior to treatment with the at least one high-speed liquid jet or high-velocity gas jet and / or post-digestion, in particular using, in particular exclusively, Pectinases and hemicellulases as such or microorganisms which form them and / or washing of the treated fibers.
  • a pre-digestion can be carried out for example by a water roasting and / or soaking in water.
  • a washing is advantageously carried out at at least 50 ° C, in particular at least 60 ° C with water, optionally with the addition of further ingredients such as soap extract. In another embodiment, however, it is preferred to use water alone for washing.
  • gases for example, nitrogen or carbon dioxide can be injected.
  • the blowing in of air is also conceivable. The then sorted by height fibers are skimmed off accordingly.
  • one or more equipped with needles or thin elongated elements upwards, in particular obliquely upward, in particular at an angle of 30-70 ° to the horizontal, moving conveyors are provided, which are flushed with a liquid against the conveying direction and in particular from a Promote bath with the fibers.
  • moving conveyors are provided, which are flushed with a liquid against the conveying direction and in particular from a Promote bath with the fibers.
  • promotion inclination and diameter of the elongate thin elements a different affinity of different fibers thus results, despite the counter-rinsing, remaining on the elongated thin elements and thus being transported.
  • different diameters of the elongated thin elements may result in different fiber lengths from a corresponding bath be removed.
  • the longitudinal axes of the thin elongated elements are aligned in particular perpendicular to the conveying direction of the conveyor or have to this particular angle of at least 60 ° and at most 1 20 °.
  • the water used in the various stages pre-digestion, high-speed liquid jet or high-speed gas jet, post-digestion and washing or sorting is reused, in such a way that water from the later process steps, possibly after appropriate treatment, such as filtration, in the upstream process steps for further plant stems is reused.
  • the water used for peeling by the high-speed liquid jet or high-speed gas jet is in particular sieved and possibly filtered. It is also conceivable to provide a drum within which the treatment with the high-speed liquid jet or high-speed gas jet takes place and which in particular rotates about the longitudinal extent of the plant stem and which is used for catching bark components.
  • vacuum may be applied to this drum to trap and hold the detached bark components and may be used to unload the drum, in particular in a dedicated portion of the circumference through which the drum rotates, such as vacuum and / or drum Overpressure are applied to remove the components held on the drum.
  • the recovered, in particular washed, fibers are cooked and / or bleached.
  • the method also includes the step of generating biogas.
  • biogas are first determined by the population of microorganisms normally present in the atmosphere sealed off from the atmosphere. containers for pre- and / or post-digestion.
  • biogas production is promoted in particular by using the liquid or the gas of the high-speed liquid jet or high-speed gas jet or the biomass dissolved and / or suspended therein and their introduction into the pre-and / or post-digestion vessel.
  • the materials obtained during filtering in the course of water treatment for the production of biogas. Solids that also occur, for example, on the filters for water treatment or peeling or arise during defoliation, can also be used for the production of biogas. But they can also be dried, in particular pressed and pelletized as fuel, feed or fertilizer can be used.
  • the object is also achieved by the use of at least one high-speed liquid jet or high-speed gas jet for obtaining plant fibers from at least one plant stem or from at least one unit of vegetable bast with or without cuticula separated from the wood, characterized in that the plant stem or unit of plant bast with or without cuticle by treatment with the at least one high-speed liquid jet or high-speed gas jet and the at least one plant stem or the at least one unit comprising plantbast with or without cuticle has a moisture content of at least 25% and / or plant glues, especially the pectin and the hemicelluloses of the plant stem or the unit of vegetable bast at the beginning of treatment with the high-speed liquid jet or high-speed gas jet is present swollen.
  • the features and advantages described with respect to the method can be transmitted accordingly.
  • the object is also achieved by a device for obtaining plant fibers from at least one plant stem or from at least one unit of vegetable bast with or without cuticula separated from the wood, thereby characterized in that a holder and / or guide for at least one plant stalk or at least one unit separated from wood comprising Debast with or without cuticle and a device for treating at least one plant stems and / or timber contained in the support and / or plant unit comprising plant bast with at least one high speed liquid jet or high velocity gas jet.
  • the device is in particular configured for carrying out a method according to the invention.
  • the features described in relation to the method can be transferred according to the device, in particular by providing corresponding devices for high speed jet production, discharge jet or discharge flow generation and / or holding and / or guiding the stem or unit, by devices, especially pre-digestion baths and / or or roasting and in particular means for transporting them for high-speed treatment.
  • FIG. 2 shows an arrangement for implementing the method according to the invention at a plurality of spaced plant stems.
  • a U-profile 1 which has a slot-shaped opening 3 in the lower region.
  • a flat jet nozzle 4 Arranged in this opening is a flat jet nozzle 4, which is arranged so that its high-speed water jet is arranged with its wide extension parallel to the bottom of the U-profile and with its beam direction at an angle of 10 ° to the longitudinal direction of a straight and in the U-profile.
  • 1 longitudinally inlaid plant stem 2 includes.
  • nozzle 5 which generates a rotating high-speed water jet which, with its jet direction, produces a winch. from 30 ° to 95 ° to the longitudinal extent of the inserted plant stem 2.
  • a third nozzle 6 which generates a flat jet high-speed water jet, which encloses with its jet direction an angle of 75 ° to the longitudinal extension of the inserted plant stem 2 and is arranged with its broad extent parallel to the first flat jet.
  • the plant stem 2 can be inserted by the user in the U-profile 1 and pulled in the upper left direction.
  • the jets of the above arranged nozzles detach bark together with the fibers.
  • the jet of the nozzle 3 arranged below supports the removal of the ab- and / or loosened components. To remove these components and the water, the U-profile 1 is inclined with its longitudinal extent against the horizontal.
  • the user can then return the plant stem 2 back towards the bottom right and turn and pull again to peel, especially on another side up to the left.
  • the user can invert the plant stem 2 and peel off at the previously untreated side as described above.
  • Figure 2 shows a plan view of a sieve 7, that on substantially parallel and spaced plant stems 9 are placed, which are held with a beam 8, which is pressed onto it. Furthermore, two flat-jet nozzles 10, each of which emit a wide, high-speed water jet and are moved away from the beam 8 from the inside to the outside, can be seen. So they peel the plant stem 2.
  • the water can escape through the sieve 7.
  • the detached material can also escape completely or partially through the screen 7. Otherwise it can be removed from the sieve 7 in a further operation, in particular separately from the remaining stems.
  • the fixation of the spaced plant stems 9 ensures that the plant stems 9 do not overlap and the high-speed water jet can not escape.
  • the remaining stems can then be clamped at another location and reworked with a high speed water jet, especially at the location of the first clamp, for peeling.
  • the stems can be turned over and reprocessed from another side for peeling with one or more high-speed water jets, in particular as described above.
  • the fibers obtained by this invention are treated directly or with the interposition of other treatments, such as washing, sorting, for example by fiber lengths, cleaning, bleaching, dyeing and / or banding with the following process that also represents an independent invention and independently to Example can be implemented with differently obtained fibers or slivers.
  • the stretching and spinning is limited by the ratio between the length and the thickness of the technical fibers given by the properties of the technical fibers. Also consume the used for combing Ma comparatively much energy. In addition, considerable energy is also expended for possibly upstream drying.
  • the object of the further invention is to provide a corresponding method, which is superior to the conventional and allows for the least possible use of energy a superior cleaning and / or allows the ratio between length and thickness of the technical fibers to increase.
  • This object is achieved by a method, a use and a device
  • plant fibers are treated with at least one high-speed liquid jet or high-velocity gas jet and then wet-processed, in particular cleaned, refined and / or aligned.
  • the high-speed jet causes, in particular, different, partially overlapping effects: a. Dissolving water-soluble (short-chain) sugars and / or b. Dissolving pectins and / or c. Suspending pectins by hydromechanical action and / or d. Destruction of cellulose / hemicellulose compound by hydromechanical action and in particular suspension of hemicellulose. e. Rinse out impurities With regard to the dissolution of water-soluble sugars, the high-speed jet in particular causes the supply of liquid whose solubility product has not yet been reached with regard to the compound concerned. Added to this is the influence of temperature: the warmer the solvent, the higher the solubility product.
  • the effect increases because the high-speed jet initially only has to create a start of the separation and then later in the course, especially in the longitudinal direction of the plant fiber allows a simpler continuous separation or a certain part does not have to be freed from pectin to separate and / or release.
  • gelatinous pectins in particular are shaken out by shear and / or friction and suspended in or entrained in the liquid or gas.
  • the high-speed jet causes in particular hydro-mechanical rupture of cell and fiber structures by shearing, friction and by stiction-induced tensile forces.
  • the resulting fracture Pieces of cells and fibers are suspended and can be separated from the pulp.
  • the engineering fibers formed by elemental fibers may be partially disrupted, and a change in the properties of the engineering fibers may be made to increase their length to thickness ratio to increase their specific surface area and, in particular, increase their number.
  • the plant fibers are, in particular, plant fibers which have already been digested and / or largely of wood components and / or other impurities, such as bark constituents, detached and / or liberated vegetable fibers. In doing so, they are in particular at least 40%, in particular at least 70%, of the original amount of impurities or foreign constituents, such as lignified constituents or bark constituents, which have originally been released in the plant stalks. In particular, they have at most 20% by weight impurities or impurities, such as lignified components or bark components.
  • the plant fibers originate here in particular at least partially, in particular completely from plants of the group of the Eurosiden I, in particular of hemp plants and / or Nesselgewumblesen, in particular preference is nettle, ramie, hemp, flax, jute and kenaf.
  • the processing in particular cleaning, aligning and / or refining, in particular by combing, immediately after in the wet state the treatment with the at least one high-speed jet, at least within a maximum of 48 hours.
  • the processing in particular cleaning, aligning and / or refining, in particular by combing in particular carried out so that there is a stretching of the vegetable fibers, in particular in the form of a card, carding tape or combed train present.
  • This is achieved in particular by the clamping and transport of the fibers between two rotating rollers and / or rollers and the subsequent combing, wherein the speed of the devices for combing or their combs from the conveying speed by the rotating rollers and / or rollers deviates, in particular higher ,
  • the combing device can be formed in particular by rotating rollers and / or rollers, which are occupied by nails, needles, spikes, rods and / or rakes and which are arranged and rotate at such a speed that the nails, needles , Spikes, rods and / or Harken combing through the plant fibers, in particular in the form of a band, are guided.
  • the peripheral speed of the occupied rollers and / or rollers is chosen differently than the transport before her arranged rotating and clamping rollers and / or rollers.
  • the plant fibers have a moisture content of at least 25%, in particular at least 40%, prior to treatment with the at least one high-speed jet, since plant glues, in particular pectin and hemicelluloses, are present in this state and / or plant glues, in particular pectin and hemicelluloses , the plant fibers swollen or swollen before.
  • a state which is particularly suitable for the invention can be present in particular in vegetable fibers obtained without drying from fresh or green plant stems and / or in plant fibers which are pre-digested and / or soaked in liquid, in particular water, in particular in the presence of microorganisms.
  • Preference is given to subjecting the plant fibers to treatment before the treatment, in particular after the separation of wood components and in particular after a first cleaning, to a water roast or to a moist or wet pre-digestion and not dried, in particular at least not between the water roast or the pre-digestion and the beginning of the treatment Dried so that plant glues significantly, in particular no more than 50%, emanate.
  • it may be a removal of the non-bound in plant glue liquid, for example by pressing.
  • the water roasting or the pre-digestion can be cold or warm.
  • the high-speed liquid jet or high-velocity gas jet preferably has a velocity of the liquid or gas in the high-velocity liquid jet or high-velocity gas jet, in particular at the point of contact with the vegetable fibers of more than 20 m / s, in particular more than 30 m / s, in particular more than 50 m / s, up.
  • the at least one high-speed liquid jet or high-velocity gas jet is produced by passing a water volume under at least at least 1 bar, in particular at least 30 bar, in particular at least 50 bar pressure through a nozzle.
  • a high water flow rate can compensate for a low pressure and a high pressure for a low water flow rate.
  • a cross-sectional tapering of the liquid volume, in particular by a factor of 2 to 20, is achieved by means of this nozzle.
  • a high-speed liquid jet or high-velocity gas jet can be generated from a pressurized volume of liquid.
  • the nozzle is one which has a clear width of at least 1 mm in one direction, in particular 1.5 mm.
  • the clear width in one direction is preferably 0.01 to 0.5 mm.
  • the shape of the nozzle can be formed both rectangular and circular or oval or have a different shape. It is particularly preferred, for example, to form a nozzle which has a circular arc section as a basic shape and in the radial direction has a clear width of 0.5 to 1, 5 mm. Particularly preferred is a rotating punctiform water jet.
  • nozzle for example those of a nozzle which is approximately perpendicular, for example at an angle of 70 ° to 100 °, to the sliver or the base unit, in particular a rotary nozzle, together with a 20 ° -40 ° transverse to the direction of movement Plant stem irradiating, but directed in the direction of movement of the sliver or the base unit nozzle, in particular flat jet nozzle.
  • the high-speed jet contains water or water vapor.
  • the high-speed jet at a temperature of at least 40 ° C, in particular at least 70 ° C.
  • a quantity of liquid or gas of from 10 to 30 cm 3 as high-velocity liquid jet or high-velocity gas jet.
  • the at least one high-speed liquid jet or high-velocity gas jet has a second velocity of the liquid or gas in the high-speed liquid jet or high-velocity gas jet, in particular at the point of contact with the plant fibers, of more than 30 m per second, in particular more than 50 m per Second, preferably of more than 1 00 m per second.
  • the high-speed liquid jet or high-velocity gas jet in particular has an opening angle of at least in one spatial direction of less than 30 °, in particular less than 10 °, in particular in the direction of the radius of the fibers or of the fiber sliver.
  • the high-speed liquid jet or high-speed gas jet has in particular at the point of contact with the plant fibers has a dimension in the cross section of at least in one direction perpendicular to the velocity of the liquid or gas in the jet of less than 3 mm, in particular less than 1 mm. For this, it is sufficient to consider the smallest cross section which will pass through 90% of the liquid or the gas of the high-speed liquid jet or high-velocity gas jet.
  • a punctiform, high rotational frequency for example, with 80 rotations per second, around the central axis rotating high-speed water or high-speed gas jet can be used.
  • the plant fibers are parallelized before, after and / or during, in particular before, the treatment with the at least one high-speed jet, or they are parallelized in the treatment and / or present in a card or carding belt.
  • the parallelization takes place, in particular, by using at least one alignment high-speed beam, for which in particular the features described as being advantageous in relation to the at least one high-speed beam are valid.
  • This can be done, for example, by driving the fibers with the at least one aligning high-speed jet, in particular uphill, into or over an area in which the liquid and / or gas removal is driven out of the area.
  • the liquid or gas / liquid removal is effected by applying a negative pressure in the area of the impact of the high-speed jet on the side of the fibers or the belt located away from the source of the high-speed jet or of the belt History is advantageously modulated or will.
  • a trough catch in particular in the form of a trough and a roller and / or roller, which clamps the fibers between the trough and the roller and / or roller and a device for removal and / or from the trough and / or or roller for guiding and uniformly presenting the plant fibers and for (further) parallelizing, especially after a parallelization by means of a Ausrichthochgeschwindig- keitsstrahl, preferably.
  • a preferred even presentation can be achieved.
  • the plant fibers are treated from at least two sides with at least one high-speed liquid jet or high-speed gas jet and then, in each case subsequently wet-combed.
  • the combing takes place from different sides.
  • wet fibers are treated in a layer having a layer thickness of less than 20mm, in particular of less than 1 0mm with the at least one high-speed jet.
  • Plant fibers are wet-stretched and / or relined using a special process. The stretching advantageously takes place at least partially by combing.
  • the liquid of the at least one high velocity jet or high velocity gas jet is exhausted such that there is no liquid jamming impeding the high velocity liquid jet or high velocity gas jet or embedding the plant fibers in a liquid bed or allowing the plant fibers to float.
  • This can be done, for example, by a corresponding drainage possibility, for example by placing the plant fibers on a grid and / or screen and / or a sufficiently thin and / or loose arrangement of the plant fibers during treatment with the at least one high-speed jet.
  • Particularly preferred is the application of a negative pressure below the above. Sieves / grids, which actively withdraws the liquid.
  • the plant fibers contained in a card sliver or carding belt are treated with the at least high-speed liquid jet or high-speed gas jet and then wet-combed. In this form, a leadership and processing is particularly efficient.
  • the high-speed jet at an angle of 30 ° - 70 °, in particular 40 ° - 60 °, between the longitudinal extent of the plant fibers and / or the band in which the fibers are present, and / or transport direction of the plant fibers and / or of the band in which the fibers are present, to which plant fibers are directed.
  • the plant fibers and the high-speed liquid jet or high-speed gas jet relative to each other in the direction of the longitudinal extent of the plant fibers and / or the band in which the fibers are present, and / or in the transport direction of the plant fibers and / or the band in the the fibers are present, are moved at a first speed.
  • a flat jet as a high-speed jet, which extends in particular the entire width of the sliver or the fibers.
  • the jet forming the high-speed jet is particularly reciprocated at a speed higher than the conveying speed of the fibers parallel thereto, but the high-speed jet is directed or generated only in the time windows on the fibers or sliver in which the velocities of the nozzle and positively superimpose the promotion to a greater relative speed.
  • either plant fibers and / or the belt in which the fibers are present, or the high-speed liquid jet or high-velocity gas jet, or both are moved so as to be moved relative to each other.
  • the second velocity of the liquid and / or gas within the high velocity liquid jet or high velocity gas jet is to be distinguished.
  • the second speed As such, while the gas or liquid particles in the high velocity liquid jet or high velocity gas jet are progressing at a second velocity within the high velocity liquid jet or high velocity gas jet, the high velocity liquid jet or high velocity gas jet is at a first rate relative to the plant fibers and / or the belt, in which the fibers are present, moves.
  • the relative movement or first speed is, in particular, parallel to the longitudinal extent of the plant fibers and / or of the band in which the fibers are present and / or of the transport direction of the plant fibers and / or of the band in which the fibers are present.
  • the nozzle may rest and the plant fibers and / or the belt in which the fibers are present may be moved, in particular so that it first encounters the high-speed liquid jet or high-velocity gas jet is moved, then the high-speed liquid jet or high-speed gas jet by movement of the plant fibers and / or the band in which the fibers are present, at least partially over the length of the plant fibers and / or the band in which the fibers are present, and especially the sweeps Plant fibers and / or the band in which the fibers are present, then leave the high-speed liquid jet or high-speed gas jet on the other side of the high-speed liquid jet or high-speed gas jet.
  • the first speed is parallel to a speed component of the second speed, but in particular is not parallel or antiparallel to the second speed.
  • Parallelism is to be understood as orientation in the same direction. If the orientation is opposite, this would be antiparallel.
  • the first and second velocities partially overlap upon impact of the liquid or gas on the plant fibers and / or the band in which the fibers are present, so that there is a lower relative velocity than the addition of the velocities. Thereby an increase of the ratio of length to thickness of the fibers and / or a stretching is supported and / or effected.
  • the plant fibers are not present as a band and / or when the plant fibers are loose or present as a flake or ball, it is preferred to carry out the treatment with the at least one high-speed jet in a rotating and fiber-promoting drum screen.
  • an orientation of the at least one high-speed jet is preferred such that it reduces the conveying speed, that is, it is in particular at least partially opposite.
  • the plant fibers are not present as a ribbon and / or when the plant fibers are loose or flake or nodular, it is preferred to treat them with the at least one high velocity jet while the fibers are disposed in an elongated trough.
  • This can be formed, in particular, an elongated sieve or grid bent in particular across the longitudinal extent, in particular a semicircular sieve or grid.
  • the use of at least one rotating high-speed beam is particularly preferred, thereby promoting band formation.
  • a plant fiber band can be effected by the at least one high-speed jet.
  • This band can then be combed damp.
  • it is first treated in the belt with at least one further high-speed jet and then and / or in each case after treatment with a
  • the plant fibers are cooked after the treatment with at least one high-speed jet and in particular after hiding and / or bleached, in particular by exposure of the plant fibers with a liquid flow for further washing, in particular dissolved and / or suspendable, impurities.
  • the object is also achieved by the use of at least one high-speed liquid jet or high-speed gas jet for cleaning and / or increasing the ratio of fiber length to fiber thickness of vegetable fibers.
  • the plant fibers are treated with at least one high-speed liquid jet or high-speed gas jet and then wet-combed.
  • the aspects and advantageous features described in relation to the method can be transferred accordingly.
  • the object is also achieved by a device for cleaning and / or increasing the ratio of fiber length to fiber thickness of plant fibers.
  • At least one guide and / or holder for plant fibers and a device for treating the plant fibers held and / or guided with the guide and / or holder are provided with at least one high-speed liquid jet or high-velocity gas jet and at least one device for moistly combing the vegetable fibers.
  • the device is set up to carry out an inventive A method according to the invention, in particular under the provision of appropriate means and / or in particular a controller for carrying out the method according to the invention.
  • the device for wet combing is in particular a card.
  • the apparatus has a plurality of apparatus for treating the plant fibers held and / or guided by the at least one guide and / or holder with at least one high-speed liquid jet or high-speed gas jet and a plurality of devices for moist cutting of the plant fibers.
  • At least one guide and / or transport device is provided, which is set up to transport the fibers from a first device for treating the plant fibers held and / or guided by the at least one guide and / or holder to at least one high-speed liquid jet or high-velocity gas jet Apparatus for moistly combing the plant fibers to transport and in particular to at least one further device for treating the at least one guide and / or holder held and / or guided plant fibers with at least one high-speed liquid jet or high-velocity gas jet and, in particular subsequently, in particular to at least one further device to transport the wet combing of the plant fibers.
  • the transport speed is increased toward the end, thereby achieving a stretching.
  • the transport device is part of the at least one guide and / or holder or includes this.
  • the transport device, guide and / or holder is adapted to transport the fibers, in particular in the form of carding or carding, especially in the fiber or tape longitudinal direction, and at least partially in at least one direction, in particular perpendicular to the high-speed beam direction to fix
  • the fibers in particular in the form of carding or carding, especially in the fiber or tape longitudinal direction, and at least partially in at least one direction, in particular perpendicular to the high-speed beam direction to fix
  • the surface in particular has openings for discharging the Liquid and / or the gas of the high-speed jet, is in particular designed as a grid or sieve.
  • the transport device, guide and / or holder is formed, the fibers between passing different, in particular two, to rotate and / or turn, in particular by 1 80 ° and / or the plurality of devices for treatment of the at least one Guided and / or holding held and / or guided plant fibers with at least one high-speed liquid jet or high-speed gas jet arranged so that they held with the at least one guide and / or holder and / or guided plant fibers from different directions, in particular opposite or at least 90 ° the fiber or tape longitudinal direction twisted directions, act on at least one high-speed liquid jet or high-speed gas jet.
  • the device has a device or arrangement for the continuous cleaning of at least one device for combing.
  • This may be, for example, flushed, in particular by a liquid bath and / or a liquid or gas flow or a liquid or gas jet, which is directed to the device for combing that he / she removes impurities trapped therein.
  • the combing device can be formed in particular by rotating rollers and / or rollers, which are occupied by nails, needles, spikes, rods and / or rakes and which are arranged and rotate at such a speed that the nails, needles , Spikes, rods and / or Harken combing through the plant fibers, in particular in the form of a band, are guided.
  • FIG. 3 shows a treatment line for carrying out the method according to the invention.
  • a sliver 1 which is formed at the top left and processed in the further course to the bottom right, cleaned, stretched and refined.
  • a pre-metering device 36 which pre-moist fibers 35 and metered flushes with a water nozzle 37 via a raise 38.
  • the fibers 35 are clamped by a tray feeder between a trough 39 and a first roller 1 1 and withdrawn by a nails provided, on the circumference at the speed V2 faster than the first running at the speed V1 roller second role.
  • the resulting sliver 1 3 is passed through a sieve 14 and treated from above at an angle of 80 ° with a first high-speed water jet from a first high-speed nozzle 1 second
  • the water and dissolved and / or flushed components can pass through the sieve 1 4 into a basin 29 located underneath.
  • the sliver 1 3 is guided so that it is exposed down and is supported upwardly by a second sieve 1 9. In this position, it is treated by a second high-speed water jet from a second high-speed nozzle 18 at an angle of 80 °. The water and dissolved and / or flushed components may pass through the second screen 19 and subsequently or alternatively drip into the basin 29 below.
  • the sliver 1 3 is passed over a third wire 24 and treated by a third high-speed water jet from a third high-speed nozzle 23 at an angle of 80 °.
  • the water and dissolved and / or flushed components may pass through the third screen 24 and drip below the basin 29 located below.
  • the sliver 1 3 is withdrawn and further processed, transferred here into a cooking vessel 28.
  • the peripheral speed V 1, V 2, V 3, V 4, V 5, V 6, V 7, V 8 increases from the first roller 10 to the second 1 1, to the third 1 5 and fourth 1 6 roller, to the fifth 1 7 roller, to the sixth 20 and seventh 21 roll, to the eighth roll 22, to the ninth 25 and tenth 26 roll, and to the eleventh roll 27, respectively.
  • a process for purifying and / or increasing the ratio of fiber length to fiber thickness of plant fibers (35, 13), characterized in that the plant fibers are treated with at least one high-speed liquid jet (1 2, 18, 21) or high-speed gas jet and then wet to be combed.
  • the above method wherein pectin and hemicelluloses of the plant fibers are at least (at) swollen when started with the high-speed liquid jet or high-speed gas jet.
  • the plant fibers have a moisture content of at least 25% or the plant fibers having a moisture content of at least 25% before starting treatment with the high-speed liquid jet or high-speed gas jet and to a moisture content of at least 25% before treatment with the high-speed liquid jet or high-speed gas jet minimum 25% dried.
  • the plant fibers are treated multiple times with the at least one high velocity liquid jet and high speed gas jet and then wet combed and / or the plant fibers are treated from at least two sides with at least one high speed liquid jet or high velocity gas jet and then wet combed.
  • liquid of the at least one high-velocity jet or high-velocity gas jet is discharged so as not to result in liquid jamming impeding the high-speed liquid jet or high-velocity gas jet or embedding the plant fibers in a liquid bed or allowing the vegetable fibers to float.
  • plant fibers in a sliver, card sliver, carded sliver or staple include the at least one high speed liquid jet or sliver High-speed gas jet treated and then wet combed.
  • plant fibers before, after and / or during the treatment with the at least one high velocity liquid jet or high velocity gas jet using the at least one high speed liquid jet or high velocity gas jet and / or at least one high velocity liquid jet or orientational high speed air - Gas jet are parallelized.
  • At least one high-speed liquid jet or high-speed gas jet for cleaning and / or reducing the ratio of fiber thickness to fiber length of plant fibers, characterized in that the plant fibers are treated with at least one high-speed liquid jet or high-speed gas jet and then wet-combed.
  • Device for cleaning and / or reducing the ratio of fiber thickness to fiber length of plant fibers characterized in that a guide and / or holder for plant fibers is provided and a device for treating the held and / or guided with the guide and / or holding plant fibers at least one high-speed liquid jet or high-speed gas jet, as well as at least one device for wet combing of the plant fibers is provided.

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Abstract

L'invention concerne un procédé d'obtention de fibres à partir d'au moins une tige de plante ou de liber. On connaît d'après l'art antérieur différents procédés d'obtention de fibres à partir de tiges de plantes. Les tiges y sont habituellement décortiquées mécaniquement, en partie après avoir été préalablement désagrégées biologiquement. En principe, on sait également par la suite laver les fibres obtenues et les débarrasser de résidus extérieurs. L'invention vise à mettre au point un procédé correspondant, qui est supérieur aux procédés classiques et qui est adapté à obtenir des fibres pour un traitement ultérieur avec un apport énergétique moindre et une réduction des résidus de traitement, y compris avec des tiges de plante difficiles à décomposer. Selon l'invention, la ou les tiges de plante sont traitées au moyen d'au moins un jet de liquide à grande vitesse ou d'un jet de gaz à grande vitesse, la ou les tiges de plante présentant une teneur en humidité d'au moins 25 % et/ou les colles végétales, en particulier la pectine et les hémicelluloses, de la tige de la plante étant présentes à l'état gonflé au début du traitement au moyen du jet de liquide à grande vitesse ou du jet de gaz à grande vitesse.
EP15734601.6A 2014-11-10 2015-06-25 Procédé et dispositif d'obtention de fibres à partir d'au moins une tige de plante et usage d'un jet de liquide ou de gaz à cet effet Not-in-force EP3218535B1 (fr)

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DE102014116331 2014-11-10
PCT/EP2015/064381 WO2016074807A1 (fr) 2014-11-10 2015-06-25 Procédé d'obtention de fibres à partir d'au moins une tige de plante

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DE102015110227A1 (de) 2015-06-25 2017-01-12 Egon Heger Verfahren zur Reinigung und/oder zur Vergrößerung des Verhältnisses von Faserlänge zu Faserdicke von Pflanzenfasern
CA3034538A1 (fr) * 2016-08-23 2018-03-01 The Gondar Group Inc. Appareil et procede permettant de separer les fibres des plantes
US10315199B2 (en) * 2017-08-01 2019-06-11 Mark Jeffery Rose Method for collection of integer glandular trichomes
FR3075226B1 (fr) * 2017-12-19 2019-11-22 Exo Conseils Procede d'affinage de fibres vegetales par explosion de vapeur
CN113062021A (zh) * 2021-03-29 2021-07-02 穆棱市新凌亚麻纺织有限公司 一种亚麻纱生产处理工艺
JP2023147139A (ja) * 2022-03-29 2023-10-12 株式会社フードリボン 果肉除去装置
DE102023001458A1 (de) * 2023-04-13 2024-10-17 Jakob Gößwald Planzenaufschlussvorrichtung
CN116397334A (zh) * 2023-05-06 2023-07-07 食物丝带株式会社 植物纤维提取方法及系统

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CN107429427A (zh) 2017-12-01
CA2967100A1 (fr) 2016-05-19
US20170321350A1 (en) 2017-11-09
EP3218535B1 (fr) 2018-12-12
WO2016074807A1 (fr) 2016-05-19

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