CS247653B1 - Method of wooden materials depth treatment by means of liquids - Google Patents

Abstract

The surface of wooden material containing 2 to 180% water or solvents forming part of a treating liquid is exposed at a temperature from 10 to 140 DEG C for one second to 70 minutes to the action of the treating liquid. The excess liquid is thereafter removed and a penetration and diffusion of the liquid from surface layers to the depth of the wooden material to 0.2 to 3.0mm is accomplished in a closed space saturated with the vapour of the solvent used in the treating liquid at a temperature from 10 to 250 DEG C for at least 2 minutes.

Description

The present invention relates to a method of in-depth refinement of wood materials with quartz. mainly veneers, solutions. refining agents such as colorants, chemical compounds used for wood preservation * synthetic resins,. hydrophobizing agents; and. zmikčovvddÁ ·

Donal known spindle ^{p p g p} re s ^s zužlachtavanie ^{The depth d} reva based vaOšin ^ ou zu penetrááci the IAD ^ ^ ^ h lkujúciLc solutions. into wood with a foil. pressure difference * POSTAP ^p re ^Hib metal ^s fartenie ^d revnýc ^HD ýhovacích the material remaining in the entire thickness is based on the fact * that the veneers are heated in the coloring solution at a temperature in the range of 80 to 110 ° C for typically 3-6 hours at - average veneer used for the manufacture of furniture. Dlhvdvbé heating a dye or other Terminated htujú ^c and ^c ^ ^c h a solution of the high-Kes * ^s when the required even distribution · Ný diffusion of substances through in zušlachťujúcich · but most of the organic dye into the wood from all Nal ^alkyl, and. to that ^of all the co-penetrate ^ ut Nycha lots ^of wood, such as parenchymal cells, a core of wood or the like. The disadvantage processes used to diffuse zušTachťovanie veneers to a depth ^y is ^T HE NEED dlhotobého zthгitvtnit in a large volume zušlachťujúcich solutions and considerable power consumption. Eiergia usually a ^p OTRE ^{the CA} in and add to the ^ en ^ zthritvteit tonacích the mites. but also for the disposal or purification of emerging waste sciences.

The shortcomings of a large ^y j is eliminated by the ^ Sat refined with the hook of wood matθriálvv the lac ^^^ ^^ u.júcimL kvapannami. whose essence lies in it. by subjecting the surface of the wood material to a quenching liquid at a temperature in the range of 10 to 140 ° C for 1 s to 70 mn ·. PTOM ennobling the excess liquid from the surface of the wood ukoUlt maateiálu oddíráni and carry out the penetration and diffusion of the compound of ennobling ^the surface layers ^{of w} h ^íbky external to ^it methanal and 0.2 ° ^F * 0 mm clo ^boiling torn- ргдев ^^ ^^ solvent-saturated steam power use the liquid. ^over a temperature of ^SAH in ^{10 to} 25 ⁰ C. with lift ^to ! 4 ⁰ * C. ^p o ^d N ^and less OBU 2 min.

247 853 ▼ Depending on the required depth of the prionic enhancer substance · The benefits of enhancing wood mattrials are dripping. are that it is substantially to shorten the time of deposit of wood material in zuSlachtuj ^account CICHLIDS Icvapal.o ^ ch CALS advan ^always described ^{EHO to} act refinement are in fact · that are reduced-footprint needed upgrading tariade ^ i ^ · ennobling solution is lubricated and is concentrated for a short period of contact with tušlachťoveniýn mater ia fold · Time tthrievtnit ^d ^ y H in the color of the solution oom diffused veneer · drooping at elevated temperatures was reduced an average of 3-8 t h r ove the ^ád not ^^ · sec, and the ^from the _{past, and} thus standing the ^p straining životaosť Π ^ ¹ ^ Ιοο toztokov · in the ^ ^^ ^ ts to live pen ^ rants out zuš ** ^ L ^ achťuj Učeja liquid contained in the okooitej temperature for substantially reducing the power drain ·

In the first step of the process described, the refining agent is allowed to penetrate only a certain portion of the wood oatteial volume. e.g., immersion in liquid zušItcSťujúcej., and applying a surface, e.g., roll coating, or · ttriekan: ^ or vacuum-tlakcovou tmpregnáciou Pa · ^ ERAC zu Zachi ^^ ^ i ^ ^ .j .júc compound of the inside surface of ^{D s} Revna it matθei ^al in the ^y con ^and VA of the contained BUS for ^DOD recrystalization heat or not votncajšieho heating · environment nasltených pair in said closed space is formed BUS spontaneous odparenta solvent by zušItcSťujúcej kvapaHny or in pouužtí larger enclosures spray's rozpúSťatldel at room pθnzerácie in · When an enclosure poiu ^ s-described process, the I ^ bente veneer is preferably p ^ i ^ uí.jú veneer saturated water with reduced surface vlikosťou · the surface of the veneer is then preferably a coating of the hot bar of concentrated prepunched ^t ^ ation ^of ruztu and that by dipping the veneer into. The vapors are bathed or otherwise deposited with a coating solution, and then the veneers are coalesced into sets and the measurements are carried out in a confined space preferably at temperatures of from 60 to 98 ° C.

Example 1 Wood veneers / Т ^ рНо ^ Юп ucleruxyluz k »sutamm / o thickness

0.8 mm and a moisture of 110% (raised on the wood grain) were immersed in an aqueous solution of an acidic flux of angry 1.8 g.l -1.

Acid Yeiiow П, ° _e 3 g-1 ^"1 Acid Orange 7 and Acid ¹ 0.6 gl ^ue Bl 62nd

3al ^e j £ ^{| г} ь 1 ^| с1 rwttá Table ^of Contents 4 l ^{gg '1 mixture of} olefin ÚĽUV tonotnosVou' 1500 and 1 ^g ^ l ^{"1 of} ge ^ne also ^{marks the} eS

Veneers booi immersed in ΗγΜ ^ οο solution at 95 ° C for *

247 653 seconds at pH 4.5 After the veneers were removed, they were placed in a vessel with water heated to 98 ° C above the water surface, the vessel was hermetically sealed and the veneers were heated for 150 minutes. by veneering the surface of the veneer and drying the veneer at a temperature of 160 ° C to a humidity of 12%, the uniformity of the veneer of the veneer was checked. The deposition rate on the veneer surface (DIN 5033 and DIN 6174) was 1.21 and inside the veneers. “1.30 when measured at 10« circular measuring points with a diameter of 20 mm ·

Example 2

Beech veneers (Faaus silvatica) and abachi (TaipiocOitoo ocleaoxylol, 0.8 mm thick) were heated in water at a temperature of 95 ° C. 30 min., Then leave in the veatical position for 10 min. and the temperature of 160 ° C was maintained at all veneers. The composition of claim 1, wherein the veneer surface layers comprise from 20% to 40% of the moisture content. Thereafter, the veneer is coated with aqueous coloring solutions of oraic acid dyes and inactive dyes and mixtures thereof with each other. The coating is a cylindrical two-sided applicator. The molecular hmoOnooti dyes used booi the range of 350 to 060. The deposits far chlorophenyl N, N-I solutions of ⁵ and 22 ^{W 0} and / ² ® · Konoce skúáanýc Potency ^{of the h} ^ bar machines outdoors solution: 0.5 to 4.1% »After application of the coloring solution the veneers poiuiadaai on top of each other. ZAT-LACU is a plane by means of plates of stainless steel or treglejok · The veneer vložli the autoclave preheated to 95 ° C · diffusion farbiaceOr solution ^from rvrchu-res ° ^ Nutr a competition in ^FIX CIA íajpocelulozovů sub Standa was conducted on the surface Water for 3 hours at 95 ° C. .

Example 3

Pai ^h s ^p and recovery of metal faakní okaasnýc ^{AS and?} Jírnýc ^the veneer haúbrk less is preferably used a ^ nasledoviý faareoia procedure: The veneers were allowed oasiakoút -hoaúcej in water 60 to 95 ° C. veneer the humidity of 90 - 120% and a temperature of 60-00% of the ^{^^^^] r:} i obojstaarniým coated by Oraúcehr faariaceOo solution at 60 to 95 ° C. ktoaý- it includes known FAA ^{ri s e} on the ^right ružívan ^h s ^{p s} faakoia metal veneer. ^{P is} the application of the * odpaaovaniu prevent water or other rozpúžtadla applied by depositing a film of veneer to each other with a preferably closable to priestotú. who closes after filling. The veneer allowed deposited at from 60 to 95 * C and faabivo preaiftnatje uniformly from all the ^y and ^{U y} to the time ^ fúzuek depends DAUO ^up ECOND HAND ^WHAT taabív. from wood species and veneer thickness. When the dyes are mixed

247 653 determines the slowest retardation time. diffuse dye · Npr. complete coloration of conventional ornamental veneers with a thickness of 0 and 3 mm at 96 ° C is 5 to 25 min · for Cl Acid Red 73. Cl Acid Red 97 $ 1 to 12 minutes over Cl Acid Yellow 11 »Cl Acid Yellow 42c Cl Acid Biue 41, Cl Acid Orange 3 »At a temperature of 95 ° C, the diffusion time required for the coloring of veneers with a thickness of 0.8 mm is 0.5 to 3 hours for most acidic mono-dyes with a molecular weight in the range of 350 to 550. * C, the time of diffusion and fixation of dyes in veneers is approximately doubled. The penetration time of the dyes in the 0.8 mm ornamental veneer veneers saturated in water vapor is between 2 and 6 days at 20 ° C for most of the dyes and wood species mentioned.

Example '4

For hot veneer poplar (Populus maailandica) with a thickness of 0.9 mm and a moisture content of 112%, it is burned]. In the case of rubber cylinders, a solution of 50 ^g · l ^{1 1} fanbase Cl Acid ^O ran ^g e 7 at a temperature of ⁹⁵ ° C in an amount of 35 ^g m m ®. Then the veneers were embedded in a polyethylene film and then into an aluminum foil and the veneer dyeing solution was not penetrated in one group of veneers at 20 ° C for 3 days and in the other group of veneers at 93 ° C for 65 minutes · Into the third group at 140 ° C for 15 minutes · Veneer dye penetration is performed in a closed interior. All three groups of veneers booi after drying evenly prefar ^and eo ^é over the whole ^ Me ·

Example 5

Cut wood veneer abachi / Triplechiteo eclnrexyleo-k. A schema having a thickness of 0 > 6 mm with a total humidity (s) of renewed weighing / 56% and a surface humidity of approximately 27% is recorded in a sieve bath ¹⁵ . gE * Cl Solvent Yellow ³² and 8 ^{g of} l ^'g Solvent Oran ^g e - a mixture of 96% ethylene glycol and etylalkehelu / 7: 3 / for 5 seconds. They were then liked to polyethylene film and heated in an enclosure at 50 ° C for 30 min. and drying the Flat ^ ^ UKTC preflr ^{e and} e o uniformly all over ^j h ^ k ^

Example 6

The peeled veneer of 0.9 mm thick and 35% wet wood was placed in a coloring solution of the acid dyes listed in Example 1 with a total concen tration ranging from 0.5 to 3 gE ^g in ^the water: ethyl glycol: iseprepyllkehel solvent. 6: 2: 1) for 10 to 20 seconds at 60 ° C. The veneers are then sealed in a PEfelin and ejrmeet container and are heated at 60 ° C for »5

150 minutes. Veneer point ^p o removement ^ elected in the whole h ^{b b} » ^{247 β} 5 ³

Example 7

The present method can be used in conjunction with conventional thermostaining dye staining circulating dye solutions. Veneers with a thickness of 0 »8 mm are applied to the veneer support so that there is a free pritsture in the range of 2 * 2 to 5 mm per 1 mm of the wood material depth. The veneer carrier is immersed in a bath for 5 to 20 minutes, at a temperature of 90 to 99 ° C in a non-pressurized colorant. Alternatively, the veneers are vacuum-impregnated for the same time in pressure dyeing tritdenitches, wherein the temperature of the white solution is 100 to 140 ° C. During this time, the dyeing solution circulates in the dyeing inlet. Preferably the non-pressure poiužti ^ tuning of the re-harden surrounded veneer ^ e to the bath in a shorter time tettrvtloch _<veneers are then removed and allowed to stand in a saturated vapor pritsturt ruzpúštttdiel dyeing bath at a temperature in the range of 60 to 95 ° C. Time diíúzneho ieniku ^f ^ ar ^bi complimentary aircraft environments Fire poun ^L ^ CH ^ extended far-stage ^b iacthu bath is cross to the type and p ^ ^ at ^ i ^ y ^ CH ^^ fovonej colorant and a depth of jirien ^ * ^p * re Carp veneers with thickness ^úb 0 to 8 mm * ^p is a bend in the range from 1 to 4 hours *

Example 0

Veneers of beech (Fagus silvatica) with a thickness of 0 * 3 mm and a moisture content of 12% were added to a refining bath of acidic dyes as in Example 1 * at 95 ° C for 2 minutes. After vybbaaí of R ^ iacet bath of the first stage Terminated ^ chťovanla was ^far-bi-d of permeated virtually the whole ^of Nal yl veneer * but the poor efarbe ^ ^d ^ RT ^{n s} complimentary smolder veneers were placed in a sealed vessel at -75 for minutes at 85 ° C. ^P o. vybraH Ibh veneer pre.farben ^s uniform and Dikov lútoch.

Ned in the present ^ h ^ ⁱ p ^a s ^h o ^^ zuš chťovania timber can vyuHk the drevábskom and furniture industry for improving the properties of wood * especially ^F or homogeneous coating or coloring of veneer to a depth. ^{ANNUAL b e} hy ^always be a ^calendar br ^account of the depth of znataej ^yl without ab ^{characterized} expose neιοo0ii'ikuvaná * TESPT neprefarbená Caisl wood βο ^ ^ * ^ The present homogeneous trans Membership of veneer can pouužk also in the production of veneer with tear-off pattern * so that the colored veneers are glued into blocks by planar or shaped pressing and then cut at an angle similar to that of a classical product * both ornamental veneers *

P RE D ΜΕT INVENTION

Claims (4)

1 · Method for the in-depth refinement of wood materials with liquids such as wood preservative solutions, coloring solutions, wood-impregnating agents in which the active substance is dissolved in water and / or in one organic solvent or solvent system, while increasing the liquid Capable of swelling the wood to at least 60% of its swellings in water, characterized in that the surface of the wood material containing 2 to 180% of water or the solvent forming the quenching liquid is exposed to a quenching liquid at a temperature of 10 to 140 ° C for 1 second to 70 minutes, then the excess ennobling liquid from the vicinity of the surface of the wood шаdtriálu removed and is performed pennerácia diffusion Terminated ^ They want ^ j principle from the back to h ^s p ^alkyl esters of wood ^s be mae ^ el-al ^0, 2, and ^W 3.0 mm in a closed prirstlre, saturated steam, solubilized by e ^! after the liquid has been used at temperature. between 10 and 250 DEG, preferably 140 DEG to, for at least 2 minutes ^- depending on the desired ^d j hi ^bk y ^ prien the zušlachťuj ^account cej substance, 2 · S ^to the H ^{Ib b eh} of a metal refining blooded ^d • ^ Bate catching ^the .vapal ^and over, according to claim 1 ', characterized in that the pennerácia zu ^: ^ Eachaujúo, J mаdteiálu liquid inside the wood is carried out in a closed pгirstlrr saturated with vapors of the kvapaainy the supply of heat, and without vonltajáieho heating · ³ · Sp ^o SOH h ^Ib metal ^eh the Terminated ^ achttovania Find m ^ ei ^ s ^Fluid poi lá claim 1 · characterized in that the medium ndsýtrnýoh couple in the lock It is formed by spraying the solvents forming part of the refining liquid into the trapped device or by spontaneously evaporating the refining liquid from the wood madtrial, 4 · ^S p ^O s Thu ^{eh depth} of refining of wood mаdeeiállv kvapalirnnri. according to claim 1, characterized in that veneers having a moisture content of 40 to 180% are used as wood-treated matte materials and that after application of the veneer, the liquid is used prior to storage. into a closed presto ™, they stack up into each other where they are pushed into the plane by a pressure of 0.1 to 1.3 MPa ·