EP3047946B1 - Procede de traitement de rotin et dispositif - Google Patents

Procede de traitement de rotin et dispositif Download PDF

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Publication number
EP3047946B1
EP3047946B1 EP16000235.8A EP16000235A EP3047946B1 EP 3047946 B1 EP3047946 B1 EP 3047946B1 EP 16000235 A EP16000235 A EP 16000235A EP 3047946 B1 EP3047946 B1 EP 3047946B1
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Prior art keywords
rattan
liquid
tubes
rod
pressure
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EP16000235.8A
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German (de)
English (en)
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EP3047946A1 (fr
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Peter Kraft
Julian Reuter
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02—Processes; Apparatus
    • B27K3/04—Impregnating in open tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02—Processes; Apparatus
    • B27K3/0207—Pretreatment of wood before impregnation
    • B27K3/0221—Pore opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02—Processes; Apparatus
    • B27K3/08—Impregnating by pressure, e.g. vacuum impregnation
    • B27K3/083—Impregnating by pressure, e.g. vacuum impregnation along the fibers, i.e. longitudinal impregnation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02—Processes; Apparatus
    • B27K3/08—Impregnating by pressure, e.g. vacuum impregnation
    • B27K3/10—Apparatus
    • B27K3/105—Injection apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K9/00—Chemical or physical treatment of reed, straw, or similar material

Definitions

  • the invention relates to a method for the treatment of rattan according to the features of patent claim 1 and a device according to claim 7.
  • Rattan is a product of the trunk of rattan palms, which can reach a length of over 100m.
  • the wood of the rattan palm is composed of many small tubes and capillaries, whereby the tubes are arranged inside the wood and the capillaries in the edge area (shell area) or in the walls between the individual tubes. This leads to the unique basic properties of rattan wood: lightness, elasticity, hard-wearing and bending ability (high oil content), hard-wearing and bending ability.
  • the outer layer of the stem is harder and more durable than the inner part - resulting in different uses.
  • Rattan is a lightweight material with an average density of 0.30-0.40 g / cm.
  • rattan It can be bent well over an open flame or after steaming and retains its shape after cooling and drying.
  • Crucial for the very specific properties of rattan is the structurally uneven density distribution over the cross section, which causes a continuous increase in strength from the inside to the outside. As a result, especially the elastic values in the outer area are very high, while in the soft core, the plastic deformation caused by strong bending can be absorbed.
  • rattan wicker and wicker furniture, e.g. As chairs or armchairs. Moist and especially under steam or with the hot air gun, the rattan material becomes soft and elastic enough for braiding.
  • Natural poles of rattan material do not allow any surface treatment by conventional means and methods, since the pebble or wax-containing outer skin prevents sufficient adhesion. Peeled material, on the other hand, can be dyed and painted without difficulty. Even colored topcoats are easily applicable. Both the coloring (pickling) as well as colored or colorless finishing are made on the finished product by dipping or spraying.
  • peeled material can be dyed and painted without difficulty, however, dyeings are often not durable and a finish offers little protection against weather and wear.
  • the mostly superficial treatment of the material leads to very short-lived and low-quality products.
  • the field of application of rattan is severely limited by its porous structure and the resulting elasticity and softness.
  • Even strong diameters of 30 mm, e.g. used as chair legs require additional braces to ensure the necessary rigidity.
  • Another way to achieve a required minimum rigidity is achieved by increasing the use of materials.
  • JP H03-290201 A describes an impregnation process of rattan.
  • liquid is pressed into the tubes of the rattan by means of a negative pressure.
  • the disadvantage is that the rattan must be placed in a pressure vessel.
  • US 722,869A namely an arrangement for the boiler pressure impregnation of rattan.
  • the rattan material is introduced into a pressure vessel which is filled with a liquid. By varying the pressure within the container, the liquid is introduced into the rattan material.
  • GB 412 163 A describes a method in which the lateral surface of a rattan rod is wetted with a liquid.
  • the rattan rod is then continuously passed through a chamber having an entrance and an exit port. At the outlet opening, the liquid is stripped off on the lateral surface of the rattan rod and accumulates in the chamber. This creates a pressure in the chamber, which acts on the lateral surface of the rattan rod, whereby the rattan rod is impregnated with the liquid through the lateral surfaces.
  • An optimal introduction of the liquid into the channels of the Rattanstange is not possible.
  • the object of the invention is to provide a method and a device with which the introduction of liquid into the Rattanrschreibchen can be improved, so as to ensure an improved penetration of the liquid in the cross section of Rattanstange.
  • the liquid is supplied to one of the two end faces or simultaneously to both end faces with overpressure.
  • the liquid is thus fed from an area outside the rattan rod by means of pressure into the interior of the rattan rod, ie into the interior of the tube.
  • the liquid By supplying and introducing the liquid into the tubes, it is to be understood that the liquid is conducted to and into the tubes such that the tubes are completely or partially filled with the liquid.
  • the liquid will by means of an external, acting on the end surfaces force pressed into the tubes.
  • This is achieved according to the invention in that in the line, eg a hose line, an overpressure is generated. This pressure causes a force in the direction of an end surface which presses the liquid into the tubes. It should be noted at this point that the liquid is not pressed into the tubes by means of capillary force.
  • the principle of capillarity is based on the molecular forces that occur within a substance and at the interface between a liquid and a vessel wall. Inside the liquid, the forces acting on a certain liquid molecule cancel each other out. Depending on the material of the vessel wall, a resultant force, which is directed into or out of the liquid in the direction of the vessel wall, results on the surface of the liquid. In contrast to the present method, where the force applied in the line causes the resulting force to act in the direction of the tubes.
  • Rattan is hereinafter understood to be intended for the treatment Rattanausgangsmaterial in the form of rattan, rattan or rattan blocks.
  • Rattan stems are essentially shelled or unpeeled rattan stems
  • rattan plates and rattan blocks are correspondingly plates and blocks made of rat ram, the tubes each extending in the longitudinal direction.
  • the rattan has, in each initial shape, two end surfaces (cross-sectional areas) which are embodied substantially perpendicular to the tubes extending in the longitudinal direction of the rattan.
  • the end faces are made at a predetermined angle to the longitudinal direction of the tubes. The angles which form the two end surfaces to the tubes may be different.
  • a flow connection between a liquid reservoir and at least one end surface by means of a line in step b) may in this case comprise the measure that an adapter piece is provided on the end face for the uniform distribution of the liquid on the end face. This ensures that the liquid is evenly distributed and thus fed to all of the tube enclosed by the adapter piece.
  • the inventively applied pressure in the Line is also in the adapter piece, ie the transition piece between the Rattanausgangsmaterial and the line, as well as connected in the line nozzles or pipes.
  • the liquid is introduced into the tubes at a pressure between 1.5 and 20 bar in step c).
  • This pressure range (working pressure range) is referred to below as overpressure.
  • the pressure in the working pressure range is greater than the prevailing atmospheric pressure. Due to the treatment with overpressure, liquids up to high viscosity (> 10 3 mPa s) can be introduced into the rattan, since a higher force is possible with overpressure. Compared to the vacuum treatment in this case, the walls of the tubes can be broken easily, which leads, for example in the treatment with a resin to a better penetration and higher rigidity of the material results.
  • liquid in the form of paint is simultaneously pressed into the rattan on both end surfaces with overpressure, expediently with pressure greater than 1.0 bar, the dyeing process is accelerated.
  • overpressure there is an overpressure inside the tubes and the liquid searches for a way through the walls of the tubes and exits through the surface of the rattan.
  • the rattan turns completely through, i. the tubes are completely filled with liquid.
  • step c) the liquid is supplied to a predetermined area on an end face, in particular predetermined areas on both end faces.
  • a predetermined area on an end face in particular predetermined areas on both end faces.
  • the rattan has certain material properties in this area.
  • color e.g. ensures that the cross section of a rattan rod has a specific pattern.
  • a binder may e.g. the rigidity of a rat can be affected if only areas of the rat cane are filled with binder.
  • the liquid may be a colorant, a binder, a formaldehyde-containing or solvent-based or natural resin, a color pigment-added binder or an oil or a wax.
  • Acrodur® is a binder for natural, glass and synthetic fibers. As a water based system, it is an environmentally friendly alternative to formaldehyde or solvent based resins, ensuring safe, easy and environmentally friendly handling.
  • the water-based Acrodur® can be diluted to adjust the optimum viscosity for the application of the process.
  • the Acrodur® color pigments can be added, which combine the processes of dyeing and stiffening. After the Acrodur® has been filled in the rattan, it can be put in the oven at about 140-200 ° C.
  • the Acrodur® inside the rattan bar begins to form and to network.
  • the cannulas are completely filled and the rattan rod is stiffened and hardened in the starting position. Thereafter, the rattan reaches a much higher rigidity or hardness and is in the same course, if color pigments were mixed, partially dyed or colored by.
  • Acrodur® of course, other binders or formaldehyde-containing and solvent-based resins may be used, but natural resins are also conceivable.
  • the introduction of the liquid into the tubes can also be improved by the temperature.
  • the temperature of the rattan to be treated may be advantageously changed, wherein in a step a1) the rattan to be treated is heated to a temperature of up to 200 ° C and this temperature in a predetermined temperature range during steps b) and c) substantially constant is held.
  • the rattan to be treated is heated to a temperature of up to 200 ° C. This makes it possible for the liquid to be passed through the tubes faster or slower, depending on the temperature of the rattan.
  • the temperature of the liquid is heated to 50 ° C-100 ° C and introduced into the tubes.
  • the step a) may include bending the rattan into a predetermined shape.
  • already finished forms of rattan e.g. Chairs or baskets can be treated according to the method of the invention.
  • the inventive methods of filling rattan with liquids and fabrics which impart certain properties to wood bring many advantages over conventional processing.
  • a big disadvantage of rattan is its low weather resistance and high elasticity or softness.
  • the filling according to the invention makes it possible to effectively introduce substances into the material which make it resistant to insects and weather influences.
  • it can be filled by this simple method with a substance that offers in connection with the natural rattan high hardness such as stiffness and an alternative to expensive bentwood.
  • This additive process considerably extends the range of application in the product world of rattan.
  • Also in the color design can be dispensed with the method according to the invention, new ways in wood technology. It is not only possible to color rattan completely.
  • the rattan which has been treated by the method according to the invention has improved properties in terms of rigidity and hardness. If the rattan has been treated with a liquid with colored pigments, then rattan is partially colored or completely dyed through. With the rattan treated according to the invention, for example, furniture, in particular chairs or tables, packaging, means of transport, sports equipment, instruments, or works of art are produced.
  • the device according to the invention is characterized by a rattan rod, two liquid storage containers, in which a liquid is stored under pressure, through a line connected to the liquid storage container, which is adapted to connect the liquid storage container to each end face of a rattan rod to supply the liquid from the liquid storage tanks to the rattan bar.
  • Fig. 1 shows the cross section of a rattan pole.
  • Rattan R consists of a large number of longitudinal tubes RK.
  • the rattan R has a lateral surface AF.
  • under the wall W is the material between the individual tubes RK to understand.
  • These walls W can be broken in excess of pressure in the tube RK, so that a connection between adjacent tubes RK can arise.
  • the liquid breaks through the walls W and thus distributed over the entire cross-section Q of the rattan rod R.
  • the rattan material is, for example, completely dyed through.
  • a template is shown, which is arranged in front of the cross section of the rattan rod R, ie the template SC is here above the plane of the drawing.
  • the template SC has a region QB, which is liquid is permeable. Liquid supplied to the cross section of the rat rod R enters the tubes RK of the rat rod R only in the region QB.
  • the template SC can, for example, in the adapter piece A as in Fig. 3 be shown shown shown.
  • the stencil SC is used when the liquid F is led by pressure at an end face A into the tubes RK and is directed at the other end face B into a container B, the pressure being chosen such that the liquid F is not exits via the lateral surface AF. This ensures that only the tubes RK a section QB of the cross section Q of the rattan R are supplied with liquid F. This can be achieved, for example, that the Rattanstange R cross-sectionally different material properties.
  • Fig. 2 is shown schematically the introduction of liquid into the tubes of a rattan rod according to the invention.
  • Fig. 2 shows a Rattanstange in which a liquid is supplied simultaneously to both cross-sections A and B.
  • the wall W (FIG. Fig. 1 ) of individual tubes RK and the liquid F passes through the lateral surface AF from the rattan rod R.
  • Fig. 3 shows a device in which both ends A, B of a Rattanstange R via a line S, each with a liquid storage container B1, B2 are connected.
  • a Rattanstange R you can also use a rattan block, a rattan plate or a molded rattan material.
  • each of the two liquid reservoirs B1, B2 there is an overpressure.
  • the pressure in the liquid storage tank B1, B2 is greater than the surrounding atmospheric pressure.
  • the liquid F coming from both ends A, B is forced into the tubes RK of the rattan barrel R.
  • the wall of the tube RK breaks and the liquid surface F emerges via the lateral surface AF of the rattan rod R.
  • a connecting element V is provided, which produces an optimal connection between the tube S and Rattanstange R.
  • the connecting element V serves to guide the liquid F in a suitable manner from the entire cross-section A of the rattan rod R in the tube S, so that the Liquid F can be pressed as uniformly as possible from the tubes RK of the rat rod R into the tube S.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Catching Or Destruction (AREA)

Claims (10)

  1. Procédé de traitement de rotin avec un liquide, comprenant les étapes suivantes:
    a) préparer une barre de rotin (R) avec de petits tubes s'étendant longitudinalement (RK) et deux faces d'extrémité (A, B) essentiellement perpendiculaires aux petits tubes (RK),
    b) réaliser une communication d'écoulement au moyen d'une conduite (S) entre un récipient (FB, B1, B2) destiné à contenir un liquide (F) et au moins une face d'extrémité (A, B),
    c) amener et introduire le liquide (F) dans les petits tubes (RK), dans lequel on produit une pression dans la conduite (S),
    caractérisé en ce que l'on amène le liquide (F) avec une surpression à une des deux faces d'extrémité (A, B) ou simultanément aux deux faces d'extrémité (A, B).
  2. Procédé selon la revendication 1, caractérisé en ce qu'à l'étape c) la pression vaut entre 1,5 et 20 bar.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'à l'étape c) on amène le liquide (F) à une région prédéterminée (QB) d'une face d'extrémité (A, B).
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le liquide (F) est un colorant, un liant, une résine contenant du formaldéhyde ou une résine de base de liant ou une résine naturelle, un liant mélangé avec des pigments colorés ou une huile ou une cire.
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'à une étape a1) on chauffe le rotin à traiter à une température jusqu'à 200°C et on maintient cette température essentiellement constante dans une plage de température prédéterminée pendant les étapes b) et c).
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'à une étape d) on chauffe le rotin à traiter à une température jusqu'à 200°C et/ou avant l'étape b) ou c) on chauffe le liquide (F) à une température de 50-100°C et/ou l'étape a) comprend la flexion du rotin à une forme prédéterminée.
  7. Dispositif convenant pour la mise en oeuvre d'un procédé selon l'une quelconque des revendications précédentes, contenant
    - une barre de rotin (R),
    - deux récipients de stockage de liquide (B1, B2), dans lesquels un liquide (F) est stocké en surpression,
    - une conduite (S) raccordée au récipient de stockage de liquide (B1, B2), qui convient pour relier le récipient de stockage de liquide (B1, B2) respectivement à une face d'extrémité d'une barre de rotin (R), afin d'assurer l'amenée du liquide (F) du récipient de stockage de liquide (B1, B2) à la barre de rotin (R).
  8. Dispositif selon la revendication 7, caractérisé en ce qu'il est prévu un élément de liaison (V) entre la conduite (S) et la barre de rotin (R), afin de réaliser une liaison optimale entre la conduite (S) et la barre de rotin (R).
  9. Rotin, qui a été traité par un procédé selon les revendications 1 à 6.
  10. Pièce de mobilier, qui est fabriquée avec du rotin selon la revendication 9.
EP16000235.8A 2013-11-15 2014-11-08 Procede de traitement de rotin et dispositif Active EP3047946B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013019223.4A DE102013019223B4 (de) 2013-11-15 2013-11-15 Verfahren zur Behandlung von Rattan
EP14003762.3A EP2873501B1 (fr) 2013-11-15 2014-11-08 Procédé de traitement du rotin

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP14003762.3A Division-Into EP2873501B1 (fr) 2013-11-15 2014-11-08 Procédé de traitement du rotin
EP14003762.3A Division EP2873501B1 (fr) 2013-11-15 2014-11-08 Procédé de traitement du rotin

Publications (2)

Publication Number Publication Date
EP3047946A1 EP3047946A1 (fr) 2016-07-27
EP3047946B1 true EP3047946B1 (fr) 2018-10-17

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EP14003762.3A Active EP2873501B1 (fr) 2013-11-15 2014-11-08 Procédé de traitement du rotin
EP16000235.8A Active EP3047946B1 (fr) 2013-11-15 2014-11-08 Procede de traitement de rotin et dispositif

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EP14003762.3A Active EP2873501B1 (fr) 2013-11-15 2014-11-08 Procédé de traitement du rotin

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EP (2) EP2873501B1 (fr)
DE (1) DE102013019223B4 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017003643B3 (de) 2017-04-13 2018-05-30 out for space GmbH Verfahren zur Herstellung eines Furniers aus Rattan, Furnierblatt, Formbauteil und Verwendung dafür
CN107199608B (zh) * 2017-07-03 2019-08-30 阜南县铭钰柳木工艺品有限公司 柳编篮上色前期处理方法
CN107139299B (zh) * 2017-07-03 2020-09-01 阜南县铭钰柳木工艺品有限公司 一种提高用于柳编编织的柳条的光泽度的工艺方法
DE102019003555A1 (de) 2019-05-21 2020-11-26 out for space GmbH Verfahren zur Herstellung eines leitfähigen pflanzlichen Materials, leitfähiges pflanzliches Material und Verwendung
CN111185982A (zh) * 2019-06-19 2020-05-22 黄坤 双端注入法
CN113771162A (zh) * 2021-06-23 2021-12-10 安徽信达家居有限公司 一种用滕条制作的家居工艺品方法

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US722869A (en) * 1898-06-20 1903-03-17 Firm Of H C Meyer Jr Process of bleaching cane.
GB412163A (en) * 1932-09-15 1934-06-21 Albert Pierre Emile Girard Method and apparatus for varnishing rattan pith and like substances
GB1432010A (en) * 1972-07-03 1976-04-14 Mason C G W Apparatus and processes for the fluid impregnation of timber
JPH03290201A (ja) * 1990-04-06 1991-12-19 Masaji Ueda 籐むしろ
EP1034902A1 (fr) * 1999-03-05 2000-09-13 Alex Degaie Dispositif de traitement des troncs d'arbres
DE102005043533A1 (de) 2005-09-12 2007-04-12 Polus, Michael, Dr. Elastisches Material und Verfahren zum Herstellen des Materials
CN101934543A (zh) * 2010-08-05 2011-01-05 中国林业科学研究院木材工业研究所 一种棕榈藤的染色防腐处理方法

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
DE102013019223A1 (de) 2015-05-21
EP2873501B1 (fr) 2017-02-08
DE102013019223B4 (de) 2015-08-27
EP2873501A3 (fr) 2015-09-02
EP2873501A2 (fr) 2015-05-20
EP3047946A1 (fr) 2016-07-27

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