EP0398421A1 - Apparatus for processing flax straw, and also flax straw opener and drum therefor - Google Patents

Apparatus for processing flax straw, and also flax straw opener and drum therefor

Info

Publication number
EP0398421A1
EP0398421A1 EP19900201168 EP90201168A EP0398421A1 EP 0398421 A1 EP0398421 A1 EP 0398421A1 EP 19900201168 EP19900201168 EP 19900201168 EP 90201168 A EP90201168 A EP 90201168A EP 0398421 A1 EP0398421 A1 EP 0398421A1
Authority
EP
Grant status
Application
Patent type
Prior art keywords
flax
straw
apparatus
teeth
drum
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.)
Withdrawn
Application number
EP19900201168
Other languages
German (de)
French (fr)
Inventor
Hendrik Jakob Leutscher
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.)
INSTITUUT VOOR BEWARING EN VERWERKING VAN LANDBOUWPRODUKTEN
Original Assignee
INSTITUUT VOOR BEWARING EN VERWERKING VAN LANDBOUWPRODUKTEN
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

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Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING
    • D01BMECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
    • D01B1/00Mechanical separation of fibres from plant material, e.g. seeds, leaves, stalks
    • D01B1/10Separating vegetable fibres from stalks or leaves
    • D01B1/14Breaking or scutching, e.g. of flax; Decorticating
    • D01B1/24Breaking or scutching, e.g. of flax; Decorticating with toothed or other pointed devices
    • DTEXTILES; PAPER
    • D01NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING
    • D01BMECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
    • D01B1/00Mechanical separation of fibres from plant material, e.g. seeds, leaves, stalks
    • D01B1/10Separating vegetable fibres from stalks or leaves
    • D01B1/14Breaking or scutching, e.g. of flax; Decorticating
    • DTEXTILES; PAPER
    • D01NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING
    • D01BMECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
    • D01B1/00Mechanical separation of fibres from plant material, e.g. seeds, leaves, stalks
    • D01B1/10Separating vegetable fibres from stalks or leaves
    • D01B1/14Breaking or scutching, e.g. of flax; Decorticating
    • D01B1/28Breaking or scutching, e.g. of flax; Decorticating with beaters rotating about an axis perpendicular to the fibre bundle

Abstract

An apparatus for processing flax straw in which the high-quality bast fibre is separated from wood parts and bast parts is provided with one or more beating drums for processing the flax straw. In order to be able to meet the requirements which are imposed in processing tangled flax straw such as orginates from combines, to increase the capacity, to take account of variations in the composition of the flax straw and to decrease the investments, the apparatus comprises a flax straw opener coupled in upstream of the beating drums, which flax straw opener comprising a toothed ripping roller with a number of teeth rings and one or more counterknife beams interacting therewith and provided with knives which project between the teeth rings in a manner such that each teeth ring interacts with a pair of knives. The processed flax straw material is fed to a drum comprising a fixed, rotationally symmetrical shell provided with grate openings and also a rotatable interior mechanism situated therein and having scutching knives.

Description

  • [0001]
    The present invention relates to an apparatus for processing flax straw in which the high-quality bast fibre is separated from wood parts and bast parts, which apparatus is provided with one or more beating drums for processing the flax straw.
  • [0002]
    These known apparatuses have already been developed some time ago and do not meet the requirements which are at present imposed in processing tangled flax straw such as originates, for example, from combines.
  • [0003]
    Furthermore, said known apparatuses have only a low capacity and they yield a low-quality fibre material, i.e. with a high content of contaminants. The known apparatuses can also virtually not be adjusted, with the result that it is not possible to take account of variations in the composition of the flax straw. An important disadvantage is, finally, that the operating costs of the known apparatuses are high in view of the high investments, the peripheral equipment required and the labour-intensive nature which are associated therewith.
  • [0004]
    The object of the invention is therefore to provide an apparatus of the abovementioned type which lacks these disadvantages and which is suitable, in particular, for processing tangled flax straw into a high-quality fibre material. This object is achieved in the first instance in that a flax straw opener is coupled in upstream of the beating drum(s), which flax straw opener comprises a toothed ripping roller having a number of teeth rings and one or more counterknife beams interacting therewith and provided with knives which project between the teeth rings in a manner such that each teeth ring interacts with a pair of knives.
  • [0005]
    Said flax straw opener processes the tangled straw package supplied in a manner such that it is intensively pulled open and is uniformly separated. In particular, the ripping and cutting movements provided by the interaction of the teeth and the knife beams play an important role in this process. A further effect of the flax straw opener is the shortening of the fibre material. Finally, a large part of the wooden tubing is separated; the loose chaffs thereby formed may already possibly be separated then in a pre-cleaning phase. Depending on the extent to which the flax straw has to be pulled open and its coarseness, the rotary speed of the ripping roller can be varied, preferably between 500 and 1,500 revolutions per minute.
  • [0006]
    In connection with the supplying and possible slowing down of the flax straw in the feed to the ripping roller, a positively driven feed roller pair is coupled in upstream thereof.
  • [0007]
    The flax straw material processed in this manner is then fed to a drum comprising a fixed, rotationally symmetrical shell provided with grate openings and also a rotatable interior mechanism situated therein and having scutching knives. In said drum, the material is further pulled open and scutched in order to separate the last wooden components from the bast fibre. The chaffs and the dust are as far as possible removed through the grate openings in the shell under the influence of the centrifugal force and the atmospheric pressure differences generated during rotation.
  • [0008]
    Preferably, an embodiment is chosen in which the centre line of the drum is vertical, the feed for the flax straw to be processed is situated at the bottom and the discharge of the processed flax straw is situated at the top of the shell, and the shell of the drum extends in a widening manner from the bottom to the top. The conical shape promotes the conveyor action of the drum in a favourable sense. If, at the same time, the scutching knives are situated at an angle in a manner such that they provide an upwardly directed conveyor action during rotation, the conveyor and separating action of the drum can be improved still further.
  • [0009]
    To promote the removal action of chaffs and dust through the shell, the internal mechanism is provided with vanes which extend along essentially radial planes to the shell. If, at the same time, the vanes extend at an angle at their radially outermost edge to match the shell and are provided at said edge with a row of carding teeth and the inside of the shell is also provided with at least one row of carding teeth offset by a half tooth pitch and extending in a plane through the centre line of the drum, the material can be mechanically carded, in addition, by the mutual interaction of the rows of carding teeth moving closely over one another.
  • [0010]
    The rotary speed of the drum is preferably chosen between 150 and 500 revolutions per minute.
  • [0011]
    At the uppermost end of the internal mechanism, a ring of beating knives is provided as a ventilator for removing the processed fibre material via the discharge.
  • [0012]
    Furthermore, provision can be made that, between the flax straw opener and the drum, a shaking apparatus is coupled in for removing loose short wood components and also a breaking apparatus for breaking longer wood components in sequence, and after the drum, a second shaking apparatus is provided for finally cleaning the processed flax straw. Such a complete processing line offers the possibility of processing the total straw crop in tangled form. Despite the fact that the line is technically compact, it is nevertheless suitable for bulk processing. In addition, the possibility is provided for responding to variations in the agricultural product, for example by adjusting the rotational speeds of the flax straw opener and the drum or alternatively by adjusting the mutual spacing of the carding teeth.
  • [0013]
    The invention also relates to a flax straw opener for the apparatus described above. In particular, it is so constructed that the teeth on the ripping roller have a comparatively small pitch and those on the feed rollers have a comparatively large pitch so that the circumferential circles defined by their teeth tips overlap one another with an offset in the axial direction.
  • [0014]
    Finally, the invention relates to a drum for the apparatus described above in which, in particular, three pairs of scutching knives are provided starting from the bottom and each pair has in sequence a ring of scutching knives mounted directly on the cylinder and also a ring of scutching knives mounted on an outermost disc edge.
  • [0015]
    The invention will be explained further hereinafter with reference to an exemplary embodiment shown in the figures.
    • Figure 1 shows a complete flax processing line in side elevation.
    • Figure 2 shows the flax straw opener according to the invention, used in the processing line, in perspective.
    • Figure 3 shows a plan view of the flax straw opener according to Figure 2.
    • Figure 4 shows the drum according to the invention used in the processing line according to Figure 1.
  • [0016]
    The processing line depicted in Figure 1 comprises, in sequence in the direction in which the flax straw to be processed passes through it, a flax straw opener according to the invention 1, a shaking apparatus 2, a series of fluted rollers 3 for breaking the flax straw, a drum 4 according to the invention, and, finally, a shaking apparatus 5 over which the flax fibres obtained are removed.
  • [0017]
    As is also depicted in Figure 2, the bundles of tangled flax straw are fed via conveyor belt 34 to a pair of rollers 6 and 16 provided with teeth, via which rollers the flax straw is fed to ripping roller 7. The uppermost roller 6 of the roller pair is suspended, so as to move in the vertical direction, on a frame 8 which is partially shown in Figure 2 and which is pressed by means of a spring 9 in the direction of the lowermost roller 6. As a result of this, the nip between the rollers 6 and 16 can adjust itself to the thickness of the bundles of flax straw. Furthermore, the uppermost roller 6, like the lowermost roller 16, is individually positively driven in a manner not shown, while the ripping roller 7 is also driven. The rotary speed of the uppermost roller 6, and therefore of the lowermost roller 16, is lower than that of the ripping roller 7, in a manner such that, if the flax straw is gripped by the teeth rings 10 on the ripping roller 7, the teeth 11 exert a braking action and the teeth 15 on the lowermost roller 16 a feeding action, in which process the flax straw is uniformly opened and ripped apart. Situated at the bottom of the ripping roller 7 is furthermore a knife beam 12 on which knives 13 are mounted at a clearance angle of 10°. At the same time, each teeth ring is surrounded on either side by a pair of knives 13 which remove the flax straw entrained by the teeth 10 from the roller and break it further in doing so. In this process a certain separation occurs of the flax straw fed in into, on the one hand, fibre components and, on the other hand, wood and bast components.
  • [0018]
    In the plan view of the flax straw opener shown in Figure 3 it can be seen that the teeth 11 are mounted on the uppermost roller 6 with an axial offset with respect to the matching teeth 15 on the lower roller 16. It can furthermore be seen that the teeth 10 on the ripping roller 7 extend to inbetween the teeth 11 and 15.
  • [0019]
    From the flax straw opener 1, the processed flax straw material is fed to the shaking apparatus 2 where a portion of the finer waste is removed by shaking. This then falls onto the belt 14 and is removed therewith.
  • [0020]
    From the shaking apparatus 2, the material enters between the series of fluted rollers 17 where the larger flax straw components are broken. This process is known per se.
  • [0021]
    Then the material is fed to the drum 4 which is shown in more detail in Figure 4. The drum comprises a conical shell 18 in which an internal mechanism 19 is rotatably mounted. The internal mechanism is driven by means of a motor 20 and a belt transmission 21.
  • [0022]
    The flax straw material is fed via the lowermost feed opening 33 to the interior of the shell 18. During the rotation of the internal mechanism 19, the flax straw is then scutched by the scutching knives 23 and 24 mounted on the central shaft 22 of the internal mechanism 19. Said scutching knives are arranged at an angle in the manner of turbine blades in a manner such that an upwardly directed conveyor action is generated. In this connec­tion, the scutching knives 23 are mounted directly on the shaft 22, while the scutching knives 24 are mounted on a disc 25 extending radially with respect to the shaft 22. On said disc 25 and the shaft 22 vanes 26 are furthermore provided which have the object, during the rotation of the internal mechanism 19, of forcing the waste material outwards through the grate openings in the shell 18 under the influence of the atmospheric pressure differences thereby generated.
  • [0023]
    As depicted, the drum according to the invention has three sets of scutching knives 23 and 24 with a disc 25 arranged above one another. In conjunction with the conical shape of the shell 18, all these scutching knives 23, 24 ensure an upward conveyor flow. Finally, at the top of the drum, the material is removed by means of the beating knives 26, also arranged at an angle, through the discharge opening 27 situated at the top.
  • [0024]
    As depicted, further vanes 28 are mounted between the centremost and uppermost disc 25, which vanes extend by means of their radially outermost edge to a point near the inside circumference of the shell 18 and are provided at that point with a row of carding teeth 29. Mounted on the internal circumference of the shell 18 are three matchingly constructed rows of carding teeth 30 which are offset by a half tooth pitch. These can be adjusted towards the shaft and are arranged in a somewhat tapering manner. When the material is now fed up through the drum from the lowermost feed 33 to the uppermost discharge 27, the fibres are mechanically carded by the mutually interacting rows of carding teeth 29 and 30. Such rows of carding teeth may also be situated on the vanes 26 and the wall components, situated opposite, of the shell 18. At the same time, the material is forced towards the shell 18 during this conveyor movement under the influence of the centrifugal force and atmospheric pressure differences generated during rotation of the shaft 22 in a manner such that contaminants emerge outwards through the grate openings in the shell 18. In this connection, the grate openings are formed in the lowermost part of the shell 18 between grate rods 31 extending along lines describing a cone and in the uppermost portion by constructing the wall in so-called pressed-­through gauze 32 with the smooth side facing inwards. This removed material also then comes to rest on the belt 14 which also extends beneath the drum.
  • [0025]
    From the discharge 27, the fibre material now obtained is conveyed over the shaking apparatus 5 where contaminants still present may be further removed.

Claims (24)

1. Apparatus for processing flax straw in which the high-­quality bast fibre is separated from wood components and bast components, which apparatus is provided with one or more beating drums for opening the flax straw, characterized in that a flax straw opener is coupled in upstream of the beating drums, which flax straw opener comprises a toothed ripping roller having a number of teeth rings and one or more counterknife beams interact­ing therewith and provided with knives which project between the teeth rings in a manner such that each teeth ring interacts with a pair of knives.
2. Apparatus according to Claim 1, wherein the knives make a clearance angle of approximately 10° with respect to the lateral surface of the ripping roller.
3. Apparatus according to one of the preceding claims, wherein a toothed, positively driven feed roller pair is coupled in upstream of the ripping roller.
4. Apparatus according to Claim 3, wherein the uppermost roller of the feed roller pair is suspended in a pivotable spring-loaded bracket which is pressed towards the lowermost roller in a manner such that the nip between the two rollers is variable.
5. Apparatus according to one of the preceding claims, wherein the beating drum comprises a fixed, rotationally symmetrical shell provided with grate openings and also a rotatable internal mechanism situated therein and having scutching knives.
6. Apparatus according to Claim 5, wherein the centre line of the drum is vertical, the feed for the flax straw to be processed is situated at the bottom and the discharge of the processed flax straw is situated at the top of the shell.
7. Apparatus according to Claim 6, wherein the shell of the drum extends in a widening manner from the bottom to the top.
8. Apparatus according to Claim 6 or 7, wherein the scutching knives are arranged at an angle in a manner such that they provide an upwardly directed conveyor action during rotation of the rotatable internal mechanism.
9. Apparatus according to Claim 6, 7 or 8, wherein the internal mechanism is provided with vanes extending along essentially radial planes to the shell.
10. Apparatus according to Claim 9, wherein the vanes extend at an angle at their radially outermost edge to match the shell and are provided at said edge with a row of carding teeth and the inside of the shell is also provided with at least one row of carding teeth offset by a half tooth pitch and extending in a plane through the drum centre line.
11. Apparatus according to Claim 10, wherein the internal mechanism is provided with one or more sets of three vanes regularly distributed in the direction of rotation and the shell is provided with three matchingly distributed rows.
12. Apparatus according to Claim 10 or 11, wherein the carding teeth rows on the shell are radially adjustable.
13. Apparatus according to one of Claims 5 to 12 inclusively, wherein the internal mechanism is an essentially cylindrical shaft provided with external concentric discs extending radially at the top to some distance from the shell.
14. Apparatus according to Claim 13, wherein certain scutching knives are mounted on the radially outermost edge of the discs and others directly on the shaft.
15. Apparatus according to one of Claims 5 to 14 inclusively, wherein a ring of beating knives is provided at the uppermost end of the internal mechanism as a ventilator for removing the processed flax straw via the discharge.
16. Apparatus according to one of the preceding claims, wherein in sequence between the flax straw opener and the drum, a shaking apparatus is coupled in for removing loose short wood components and also a breaking apparatus for breaking longer wood components.
17. Apparatus according to Claim 16, wherein a second shaking apparatus is provided downstream of the drum for finally cleaning the processed flax straw.
18. Apparatus according to one of the preceding claims, wherein the rotary speed of the ripping roller is variable between 500 and 1,500 revolutions per minute.
19. Apparatus according to one of the preceding claims, wherein the rotary speed of the drum is variable between 150 and 500 revolutions per minute.
20. Flax straw opener for an apparatus according to one of the preceding claims.
21. Flax straw opener according to Claim 20, wherein the teeth on the ripping roller have a comparatively small pitch and those on the feed rollers have a comparatively large pitch, the circumferential circles defined by their teeth tips overlapping one another with an offset in the axial direction.
22. Drum for an apparatus according to one of Claims 5 to 19 inclusively.
23. Drum for an apparatus according to Claim 14, wherein three pairs of scutching knives are provided starting from the bottom and each pair has in sequence a ring of scutching knives mounted directly on the cylinder and also a ring of scutching knives mounted on an outermost disc edge.
24. Drum according to Claim 23, wherein the lowermost portion of the shell comprises rods extending according to lines describing a cone and the uppermost portion comprises gauze pressed-through on one side to the outside.
EP19900201168 1989-05-17 1990-05-08 Apparatus for processing flax straw, and also flax straw opener and drum therefor Withdrawn EP0398421A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NL8901226 1989-05-17
NL8901226A NL8901226A (en) 1989-05-17 1989-05-17 An apparatus for processing flax straw, as well as flax straw opener and the drum therefor.

Publications (1)

Publication Number Publication Date
EP0398421A1 true true EP0398421A1 (en) 1990-11-22

Family

ID=19854657

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900201168 Withdrawn EP0398421A1 (en) 1989-05-17 1990-05-08 Apparatus for processing flax straw, and also flax straw opener and drum therefor

Country Status (2)

Country Link
EP (1) EP0398421A1 (en)
NL (1) NL8901226A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992022690A2 (en) * 1991-06-15 1992-12-23 Claas Ohg Method of decorticating flax, and flax-processing machine designed to carry out the method
WO1996006963A1 (en) * 1994-08-31 1996-03-07 Cagtomoravsky Len, A.S. Device for separating fibers from the stems of plant materials
EP0744477A2 (en) * 1995-05-21 1996-11-27 Rolf Prof. Dr. Hesch Method for the defibration respectively decorticating of bast fiber plants
WO1998001611A1 (en) * 1996-06-27 1998-01-15 Oy Scanwoven Ab Fibre product, method and apparatus for manufacturing a fibre product
WO1998003705A1 (en) * 1996-07-19 1998-01-29 Durafibre Inc. Method for decorticating plant material
FR2765895A1 (en) * 1997-07-09 1999-01-15 Inst Tech Du Lin Itl Apparatus to vary thickness of vegetable fibre web
WO1999045181A1 (en) * 1998-03-02 1999-09-10 Durafibre Inc. Plant material processing system
EP1184490A1 (en) * 2000-08-28 2002-03-06 Raiffeisen-Waren-Zentrale Rhein-Main e.G. Device for defibring stalk, stem and/or leaf type renewable raw materials
WO2005001172A1 (en) * 2003-05-20 2005-01-06 Nusenbaum, Vyvyan, Justin Method for processing flax fibre
WO2006094359A1 (en) * 2005-03-09 2006-09-14 Fibre Laboratory Pty Ltd Apparatus and method for processing of plant material
CN100414006C (en) 2006-07-20 2008-08-27 政 杨 Hemp peeler
KR101158421B1 (en) 2010-12-24 2012-07-11 전라남도 곡성군 Hemp cutter for manufacturing hemp cloth thread using korean traditional loom
CN101718000B (en) 2009-12-18 2013-05-08 武汉纺织大学 Chain type fibrilia water straightening impurity removing equipment
US8475628B1 (en) 2011-03-29 2013-07-02 Hbi Branded Apparel Enterprises, Llc Process and apparatus for orienting bast stalks for decortication
US8635844B1 (en) 2011-03-29 2014-01-28 Hbi Branded Apparel Enterprises, Llc Method for harvesting bast plants
RU2619035C1 (en) * 2016-03-30 2017-05-11 Федеральное государственное бюджетное научное учреждение "Всероссийский научно-исследовательский институт механизации льноводства" (ФГБНУ ВНИИМЛ) Method of preparing raw flax material layer for processing

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL46012C (en) *
DE454385C (en) * 1926-03-14 1928-01-09 Emil Gminder Dr Method and apparatus for the preparation of fiber stems and stalks for processing to roll drawing works by breaking down into smaller pieces
US2197683A (en) * 1937-11-19 1940-04-16 Anton F Burkardt Decorticating machine
FR889527A (en) * 1942-09-25 1944-01-12 Installation for the continuous treatment of flax or other fibrous plants
US2348813A (en) * 1941-09-09 1944-05-16 Hilarion G Henares Apparatus for extracting fibers from fibrous husks
US3334386A (en) * 1961-10-27 1967-08-08 Grundler Crusher & Pulverizer Apparatus for depithing bagasse
US4202078A (en) * 1975-09-02 1980-05-13 The Western States Machine Company Depither

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL46012C (en) *
DE454385C (en) * 1926-03-14 1928-01-09 Emil Gminder Dr Method and apparatus for the preparation of fiber stems and stalks for processing to roll drawing works by breaking down into smaller pieces
US2197683A (en) * 1937-11-19 1940-04-16 Anton F Burkardt Decorticating machine
US2348813A (en) * 1941-09-09 1944-05-16 Hilarion G Henares Apparatus for extracting fibers from fibrous husks
FR889527A (en) * 1942-09-25 1944-01-12 Installation for the continuous treatment of flax or other fibrous plants
US3334386A (en) * 1961-10-27 1967-08-08 Grundler Crusher & Pulverizer Apparatus for depithing bagasse
US4202078A (en) * 1975-09-02 1980-05-13 The Western States Machine Company Depither

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992022690A2 (en) * 1991-06-15 1992-12-23 Claas Ohg Method of decorticating flax, and flax-processing machine designed to carry out the method
WO1992022690A3 (en) * 1991-06-15 1994-05-11 Method of decorticating flax, and flax-processing machine designed to carry out the method
US5466188A (en) * 1991-06-15 1995-11-14 Claas Ohg Method of decorticating flax and a flax dressing machine for carrying out this method
WO1996006963A1 (en) * 1994-08-31 1996-03-07 Cagtomoravsky Len, A.S. Device for separating fibers from the stems of plant materials
EP0744477A2 (en) * 1995-05-21 1996-11-27 Rolf Prof. Dr. Hesch Method for the defibration respectively decorticating of bast fiber plants
EP0744477A3 (en) * 1995-05-21 1997-08-06 Rolf Prof Dr Hesch Method for the defibration respectively decorticating of bast fiber plants
WO1998001611A1 (en) * 1996-06-27 1998-01-15 Oy Scanwoven Ab Fibre product, method and apparatus for manufacturing a fibre product
WO1998003705A1 (en) * 1996-07-19 1998-01-29 Durafibre Inc. Method for decorticating plant material
FR2765895A1 (en) * 1997-07-09 1999-01-15 Inst Tech Du Lin Itl Apparatus to vary thickness of vegetable fibre web
WO1999045181A1 (en) * 1998-03-02 1999-09-10 Durafibre Inc. Plant material processing system
EP1184490A1 (en) * 2000-08-28 2002-03-06 Raiffeisen-Waren-Zentrale Rhein-Main e.G. Device for defibring stalk, stem and/or leaf type renewable raw materials
US7526837B2 (en) 2003-05-20 2009-05-05 Vladimir Vladimirovich Maximov Method for treating flax fibre
CN100510206C (en) 2003-05-20 2009-07-08 维维安·贾斯廷·努森鲍姆;弗拉基米尔·弗拉基米罗维奇·马克西莫夫 Method for processing flax fibre
WO2005001172A1 (en) * 2003-05-20 2005-01-06 Nusenbaum, Vyvyan, Justin Method for processing flax fibre
WO2006094359A1 (en) * 2005-03-09 2006-09-14 Fibre Laboratory Pty Ltd Apparatus and method for processing of plant material
CN100414006C (en) 2006-07-20 2008-08-27 政 杨 Hemp peeler
CN101718000B (en) 2009-12-18 2013-05-08 武汉纺织大学 Chain type fibrilia water straightening impurity removing equipment
KR101158421B1 (en) 2010-12-24 2012-07-11 전라남도 곡성군 Hemp cutter for manufacturing hemp cloth thread using korean traditional loom
US8475628B1 (en) 2011-03-29 2013-07-02 Hbi Branded Apparel Enterprises, Llc Process and apparatus for orienting bast stalks for decortication
US8635844B1 (en) 2011-03-29 2014-01-28 Hbi Branded Apparel Enterprises, Llc Method for harvesting bast plants
US9107342B2 (en) 2011-03-29 2015-08-18 Hbi Branded Apparel Enterprises, Llc Method for harvesting bast plants
US9510507B1 (en) 2011-03-29 2016-12-06 Hbi Branded Apparel Enterprises, Llc Overhanging tines for orienting bast stalks
RU2619035C1 (en) * 2016-03-30 2017-05-11 Федеральное государственное бюджетное научное учреждение "Всероссийский научно-исследовательский институт механизации льноводства" (ФГБНУ ВНИИМЛ) Method of preparing raw flax material layer for processing

Also Published As

Publication number Publication date Type
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