DK143740B - PROCEDURE FOR THE MANUFACTURING OF PLANE PRESSED CHIPPINGS WITH RELIEF PATTERN - Google Patents

PROCEDURE FOR THE MANUFACTURING OF PLANE PRESSED CHIPPINGS WITH RELIEF PATTERN Download PDF

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Publication number
DK143740B
DK143740B DK95176AA DK95176A DK143740B DK 143740 B DK143740 B DK 143740B DK 95176A A DK95176A A DK 95176AA DK 95176 A DK95176 A DK 95176A DK 143740 B DK143740 B DK 143740B
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DK
Denmark
Prior art keywords
relief pattern
chippings
procedure
manufacturing
pressed
Prior art date
Application number
DK95176AA
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Danish (da)
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DK143740C (en
DK95176A (en
Inventor
O R Smedberg
Original Assignee
Ry Ab
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.)
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Publication date
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Publication of DK95176A publication Critical patent/DK95176A/en
Publication of DK143740B publication Critical patent/DK143740B/en
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Publication of DK143740C publication Critical patent/DK143740C/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44DPAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
    • B44D5/00Surface treatment to obtain special artistic surface effects or finishes
    • B44D5/10Mechanical treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N7/00After-treatment, e.g. reducing swelling or shrinkage, surfacing; Protecting the edges of boards against access of humidity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44CPRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/22Removing surface-material, e.g. by engraving, by etching
    • B44C1/222Removing surface-material, e.g. by engraving, by etching using machine-driven mechanical means

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)

Description

143740 i o143740 in o

Opfindelsen angår en fremgangsmåde til fremstilling af planpressede spånplader med reliefmønstret overflade af den i kravets indledning angivne art.The invention relates to a method for producing flat-pressed chipboard with relief patterned surface of the kind specified in the preamble of the claim.

Planpressede spånplader er almindelig anvendt i byg-5 geindustrien, f.eks. til væg- og loftbeklædning. Dette materiale udmærker sig ved at være meget økonomisk, let at bearbejde og ved at have gode isolerende egenskaber. I mange tilfælde er det fordelagtigt at give de pressede pladers plane overflade et reliefmønster, idet skadelige re-10 flekser derved mindskes, ligesom akustikken forbedres, og pladerne desuden får et mere æstetisk tiltalende udseende.Flat-pressed chipboard is commonly used in the construction industry, e.g. for wall and ceiling trim. This material is distinguished by being very economical, easy to process and good insulating properties. In many cases, it is advantageous to give the flat surface of the pressed sheets a relief pattern, thereby reducing harmful reflexes, as well as improving the acoustics, and in addition, giving the plates a more aesthetically pleasing appearance.

Det er kendt at presse et reliefmønster ind i spånpladernes overflade, men de dertil anvendte fremgangsmåder er uøkonomiske, da værktøjerne er forholdsvis komplicerede.It is known to press a relief pattern into the surface of the particle board, but the methods used for this are uneconomical as the tools are relatively complicated.

15 De mønstre, der er tilvejebragt ad denne vej, er derfor relativt enkle og giver ikke indtryk af et naturprodukt.15 Therefore, the patterns provided by this path are relatively simple and do not give the impression of a natural product.

Det er endvidere fra beskrivelsen til britisk patent nr. 652.508 kendt at frembringe reliefmønstre på naturtræ ved hjælp af roterende stålbørster, der bortslider de blø-20 de vedpartier i højere grad end de hårde vedpartier og knasterne. Det ønskede reliefmønster fremkommer derfor kun på træemner med en særlig hensigtsmæssig fordeling af hårde og bløde partier, hvilket nødvendiggør en omkostningsfordyrende sortering.Further, from the specification of British Patent No. 652,508, it is known to produce relief patterns on natural wood by means of rotating steel brushes that dislodge the soft wood portions to a greater extent than the hard wood portions and cams. The desired relief pattern therefore only appears on woodpieces with a particularly appropriate distribution of hard and soft areas, which necessitates a costly sorting.

25 Opfindelsen har til formål at forsyne planpres sede spånplader med et tilsvarende tilfældigt varierende reliefmønster under anvendelse af stålbørster.The invention has for its object to provide flat-pressed chipboard with a corresponding randomly varying relief pattern using steel brushes.

Dette formål opnås ifølge opfindelsen ved, at spånpladens fibre opbygges af træspåner fra to eller flere 30 forskellige træarter med indbyrdes forskellig hårdhed og/el-ler, at doserne af spåner, i det mindste til pladens yderlag, sammenblandes således med klæbemidlet, at forskellige spåndoser tilsættes uens limmængder. Ved at fremstille spånpladerne af således doserede, inhomogene spånblandinger, 35 bibringes de en overflade, der på lignende måde som egnede naturtræsoverflader har tilfældigt fordelte zoner med forskellig hårdhed, således at stålbørsterne nedslider zonerne 2 143740 0 i forskellig grad og derved frembringer en varieret, æstetisk tiltalende reliefmønstret overflade.This object is achieved according to the invention in that the particle board fibers are made up of wood chips from two or more 30 different types of wood with different hardness and / or that the doses of chips, at least to the outer layer of the board, are mixed together with the adhesive, that different chip boxes add different amounts of glue. By producing the particle boards of thus dosed, inhomogeneous particle mixtures, they are imparted to a surface which, in a similar manner to suitable natural wood surfaces, has randomly distributed zones of different hardness, so that the steel brushes abrade the zones 2 to a different degree, thereby producing a varied, aesthetic appealing relief patterned surface.

Ved spånpladens fremstilling kan tilføres et antal større spåner, f.eks. 10-50 vægt-% spåner med længden 10-25 5 mm, hvorved der opnås et dybere og mere uregelmæssigt mønster.In the manufacture of the particle board, a number of larger chips can be supplied, e.g. 10-50 wt% chips with a length of 10-25 5 mm, which results in a deeper and more irregular pattern.

Spånpladen kan f.eks. presses af en blanding af bøgetræsspåner og fyrretræsspåner.The particleboard can e.g. is pressed by a mixture of beech wood and pine wood shavings.

Ved fremgangsmåden ifølge opfindelsen kan f.eks.In the method according to the invention, e.g.

10 spåner med en limandel på fra 0 til 8 vægt-%, regnet som tør lim på tørre spåner, blandes med spåner, som er normalt belimede, det vil sige fra 8 til 16 vægt-% lim på overfladen. Ved bearbejdningen med stålbørster vil en del af de mindre belimede spåner blive revet bort, hvorved relief-15 effekten forstærkes.10 chips having an adhesive content of 0 to 8% by weight, calculated as dry glue on dry chips, are mixed with chips which are normally bonded, that is, from 8 to 16% by weight of glue on the surface. When machining with steel brushes, some of the less glued shavings will be torn away, thereby enhancing the relief effect.

Som nævnt kan det blivende reliefmønster også forberedes før pladens presning ved i det mindst ved overfladen at blande spåner fra ulige hårde træarter. Den færdig-pressede plade føres så forbi roterende stålbørster, som 20 bearbejder overfladen. Den derved fremkomne reliefmønstrede og opruede overflade kan anvendes direkte eller eventuelt efterbehandles med en passende maling.As mentioned, the enduring relief pattern can also be prepared before pressing the plate by mixing at least at the surface with chips from odd hard wood species. The pre-pressed plate is then passed through rotating steel brushes which process the surface. The resulting relief patterned and roughened surface can be used directly or, optionally, with a suitable paint.

Fremgangsmåden ifølge opfindelsen er fordelagtig ved, at der ikke fremkommer et stadig gentaget mønster, idet 25 alle spånpladerne bliver forskellige med uregelmæssige mønstre. Ved sammenstilling opnås der derfor et naturligt mønster, der endvidere er fordelagtigt ved, at skarpe lyseffekter undgås, og at der foregår en akustisk dæmpning i sammenligning med plane overflader. Idet børstningen med 30 stålbørster kan indføres som et helt automatisk trin ved fremstillingen af de nævnte spånplader, er omkostningerne ved sådanne reliefmønstrede overflader meget ubetydelige.The method according to the invention is advantageous in that a non-repeating pattern is not produced, since all the particle boards are different with irregular patterns. Therefore, when assembled, a natural pattern is obtained, which is further advantageous in that sharp light effects are avoided and that acoustic damping takes place in comparison with flat surfaces. As the brushing of 30 steel brushes can be introduced as a fully automatic step in the manufacture of said chipboard, the cost of such relief patterned surfaces is very negligible.

De øvrige foranstaltninger, f.eks. indblandingen af uensartet lange spåner eller spåner fra forskellige træarter 35 eller anvendelse af spåner med forskellig belimningsgrad, er ligeledes uden væsentlig indflydelse på fremstillings-The other measures, e.g. the interference of disparate long shavings or shavings of different wood species 35 or the use of shavings of varying degree of sizing is likewise without material influence on the manufacturing process.

OISLAND

3 U3740 omkostningerne. Fremgangsmåden ifølge opfindelsen tilvejebringer således et ukonventionelt og i visse henseender forbedret produkt for en meget ubetydelig omkostningsforøgelse.3 The U3740 costs. Thus, the process of the invention provides an unconventional and in some respects improved product for a very insignificant cost increase.

DK95176A 1975-03-07 1976-03-05 PROCEDURE FOR THE MANUFACTURING OF PLANCHED PRESSURES DK143740C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7502569A SE400509B (en) 1975-03-07 1975-03-07 WAY TO PLACE A RELIEF SAMPLE SURFACE AT PLAN-PRESSED SPANISH DISCS
SE7502569 1975-03-07

Publications (3)

Publication Number Publication Date
DK95176A DK95176A (en) 1976-09-08
DK143740B true DK143740B (en) 1981-10-05
DK143740C DK143740C (en) 1982-03-22

Family

ID=20323887

Family Applications (1)

Application Number Title Priority Date Filing Date
DK95176A DK143740C (en) 1975-03-07 1976-03-05 PROCEDURE FOR THE MANUFACTURING OF PLANCHED PRESSURES

Country Status (6)

Country Link
DE (1) DE2609233A1 (en)
DK (1) DK143740C (en)
FI (1) FI59052C (en)
GB (1) GB1492911A (en)
NO (1) NO148063C (en)
SE (1) SE400509B (en)

Also Published As

Publication number Publication date
FI59052C (en) 1981-06-10
NO148063B (en) 1983-04-25
NO760731L (en) 1976-09-08
DK143740C (en) 1982-03-22
NO148063C (en) 1983-08-03
FI59052B (en) 1981-02-27
DK95176A (en) 1976-09-08
DE2609233A1 (en) 1976-09-16
SE7502569L (en) 1976-09-08
SE400509B (en) 1978-04-03
GB1492911A (en) 1977-11-23
FI760564A (en) 1976-09-08

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