CN1298337A

CN1298337A - Whole body stained wood piece and production method thereof

Info

Publication number: CN1298337A
Application number: CN 99805278
Authority: CN
Inventors: 库尔特·林德赫; 伦纳特·卡斯特沃尔
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-04-20
Filing date: 1999-04-20
Publication date: 2001-06-06
Also published as: WO1999054103A1; EP1073547B1; JP2002512137A; WO1999054103A8; AU745974B2; BR9909787A; SE9801366D0; EP1073547A1; AU4178199A; SE9801366L; DE69906505D1; CA2329087A1

Abstract

生产通体着色木材件的方法,其中于第一步骤在大于800bar而最好大于1000bar压力下对此木材进行等静压处理,然后释除压力取出此木材件并于第二步骤置入含有溶解的着色溶剂的液浴中。本发明还涉及通体着色的木材件。Process for the production of whole-body stained wood pieces, wherein in a first step the wood is isostatically pressed at a pressure of more than 800 bar, preferably more than 1000 bar, the wood piece is then released from the pressure and placed in a second step containing dissolved in a bath of coloring solvent. The invention also relates to wood pieces that are stained throughout.

Description

Entire body stained wood spare and production method thereof

The present invention relates to the particularly method of sawmilling product of production entire body painted (through-coloured) wood piece, also relate to entire body stained wood spare.

So-called entire body is painted to be to instigate the painted equably or dyeing of the used timber entire body of wood piece at this.The surface of this wood piece after cutting painted or dyeing thereby just sawed or cropped orientation independent with timber.

Timber-work painted and dyeing can be with the passing of time and wastage.This consume of timber, scratch, scuffing and similar damage are significant especially, and this is because the paint timber that is positioned under painted or the colored surfaces exposes.To for example sandblast etc. of preparation that dye in the surface or painted again needs are a large amount of again.And this is very time-consuming.Actual coloring process also is very consuming time.This class problem is according to being solved by the present invention to timber entire body colorize method defined above.Under this situation, among the timber and its on scratch, scuffing, the marking and abrasion then not remarkable.In addition, such timber can be through blasting treatment or processing and is still generally kept its identical color.It is also less that this entire body colorize method and the painted and colouring method that carries out are by hand compared the labour of being taken, and its advantage is significant.Pavement and table top then are the examples in the zone that can therefore be benefited.Like this, the present invention just can produce entire body painted timber ground and table top, and these ground and table top are showing wearing and tearing during sign, only need carry out sandblast then or by suitable oil or varnish treated.The Another Application zone sees the wooden handle of cutter.The cutter wooden handle of painted or dyeing in tableware washer owing to rinse to wash and cause dye layer abrasion and can fade soon.This problem just can solve with entire body stained wood of the present invention, this be because since timber to be entire body painted just the colored surface that can damage.Can produce now and can stand the cutter wooden handle that tableware washer is done the wash.

Swedish patent application SE 9500689-6 has illustrated a kind of method that is used to produce through the woodwork of impregnation process.The method relate to the phase I in so-called Quintus add in the press or by some other suitable pressure methods balanced or wait static pressure ground that ligneous piece is pressurizeed, pressure is greater than 800bar, more preferably greater than 1000bar.Timber degree by compression will depend on the aridity of timber, orientation, hardness and other character of fiber.Usually, this compression will make the size of a direction in timber cross section reduce 20～50%, and the cell in the wood piece is compacted to together.Remove the load on the wood piece then.

In second step, wood piece is placed the bath that contains impregnating agent, because maceration extract enters in the cell and is its absorption, wood piece is swelling gradually just.This liquid infiltrates in the cell and makes whole wood piece thorough impregnation.The degree of the swollen exhibition of wood piece will depend on character and its holdup time in bath of timber itself especially.Significant swollen exhibition usually occurs within the several hrs, and in some cases, timber can be got back to its original form during this period of time.Suitable impregnating agent is liquid fireproof agent, liquid fungicide and colloid liquid.

Can augment third step to above-mentioned two steps, use again wherein that the pressure more preferably greater than 1000bar carries out pressurizeing to timber greater than 800bar isobaricly, and form fire prevention, antibiotic and hard wood spare that can also resistance to deformation when adopting colloid liquid.

Above-mentioned pressure method is illustrated among the Swedish patent application 9303821-4 equally, and it has improved the quality of low quality timber by much hard finished product timber is provided, and for example can make that pine is hard must be as oak, and oak is increased firmly to 2 times of its natural hardness.According to Swedish patent application 9500689-6, have found that this pressure method can flood fails the timber that floods in the past.This dipping can be handled for example timber of several square metres of areas of large batch of timber.

Before this entire body stained wood can not be arranged.But according to the present invention who in this application, proposes claim.By timber being placed painted bath after first pressurization steps such as static pressure such as grade, can make the timber entire body painted.Color is infiltrated in the timber, then according to the usual manner desiccated wood, can pressurize once more in case of necessity.Such color is infiltrated and has been formed the painted timber of entire body.In addition, after the timber entire body is painted, timber is pressurizeed once more, can obtain whole advantages of hardwood according to SE 9303821-4.

The method according to this invention, add press or by in other suitable pressure methods in so-called Quintus, in preferably timber being pressurizeed, make the wood cell compression in the described wood piece at first step thus greater than the inferior static pressure of the pressure of 1000bar ground greater than 800bar.Said method is described among the SE 9303821-4.In second step, wood piece places painted bath, and this painted bath for example comprises the colouring agent of the water and the aqueous solution.The timber of crossing when pressurized treatments contacts with water, and timber is swelling and with the water suction in it.Cellulose in the timber and water all have polarity, make water absorb for timber soon.Colouring agent also has polarity, and along with water enters in the wood cell, described colouring agent has the tiny degree that molecular dimension promptly has molecule, and it is infiltrated in the wood cell.Colouring agent will should not be excessive polarity, because this will make it terminate in wood surface rather than infiltrate within the timber.Like this too when this molecular dimension for colouring agent is excessive, that can not enter within the timber.The molecular dimension of colouring agent and polarity change slightly according to the timber type that relates to.The people who this technology is had general knowledge is when determining appropriate colouring dosage by test.This can wood piece after waiting static pressure pressurization with different colorant combination solvents water for example, it is painted that this timber is carried out entire body.

Used solvent should be can for timber absorb the sort of.Water is suitable solvent.Another kind of suitable solvent is a Linseed oil, and it has good penetration and moist owing to its molecule is little.This colouring agent can be dissolved in the solvent, has sufficient polarity to follow the solvent that is absorbed in the timber, and the molecular dimension of institute's tool guarantees that it can have " chance " to follow described solvent to enter in the timber.In the present invention, azo dyes is suitable colouring agent.Depend on the molecular dimension of azo dyes or choosing of colouring agent and timber, can use monomer, dimer or the polymer of azo dyes.This colouring agent should have makes it can enter the required polarity of timber.The expert can determine which kind of colouring agent with which kind of solvent combines and can infiltrate in the timber.

Can comprise hardwood or leaf trees for example white poplar and birch, cork or coniferous tree such as pin according to the painted timber of the present invention

Wood and pine (redwood).It is painted to wait first step that static pressure handles dissimilar in a large number timber can be carried out entire body by the present invention to timber.

With painted white poplar and the pin of Herdins Akta Bets entire body

Wood has carried out a large amount of tests.This Herdins Akta Bets forms by mixed chlorinated sodium and azo dyes, this be according to relevant production number be the 10205l powder type true colouring agent descriptive labelling and available from Herdins F  irgverk AB's.These tests will be in the following stated.

With reference now to following example, illustrates in greater detail the present invention.Method of the present invention is included in the first step, in greater than 800bar under the pressure of 1000bar, add press or wood piece waited static pressure ground pressurization at so-called Quintus with other suitable pressure methods, the cell in the timber is compressed.Then with the wood piece release of pressure.In second step, timber placed to contain be dissolved in for example bath of liquid of the colouring agent of water of solvent, this colouring agent is that wood piece absorbs.The molecular dimension of colouring agent institute tool can make it infiltrate in wood piece and have and can make it enter polarity in the timber with water.Water and colouring agent enter wherein when the timber swelling.This need go through a few hours, and can carry out in room temperature or under up to 100 ℃ high temperature.This entire body colouring is carried out comparatively fast when being higher than room temperature.The water that contains colouring agent enters wherein when the timber swelling, forms the painted wood piece of entire body therefrom.

Then by the conventional method desiccated wood.

Perhaps also available traditional pressurization proofing method is carried out the painted processing of entire body to wood piece.

Also having found can be painted to wet wood or former carpentery workshop entire body.First step be at pressure greater than 800bar more preferably greater than the inferior static pressure of 1000bar ground processing logs, all vestibules of log are open or its some character will change.Open vestibule can absorb colouring agent and solvent.In one step of back, this wood piece is placed a Room, input colouring agent and solvent.After this a step can be finished under vacuum and/or pressuring method with the impregnating by pressure method of routine.Because above-mentioned timber maintains quite high resin, after this a step is necessary.Pressurization and/or the step that adds vacuum make the already contg resin in timber Central Plains can with colouring agent and exchange of solvent.

At this even can be that the dragon spruce wet or that give birth to that can not flood carries out the painted processing of entire body to it is believed that.

After wood piece entire body already is painted, can under 1000bar, carry out at least once waiting static pressure to handle greater than 800bar in pressure at third step to it.The result has formed the entire body stained wood with hardwood hardness.

This timber entire body colorize method is believed and can be combined with the dipping method described in the SE 9500689-6, can add fireproof agent, bactericide and colloid liquid therefrom in entire body stained wood spare.

The invention still further relates to having carried out the painted entire body stained wood spare of entire body by said method already.

Example 1

The poplar that adds in the press 7 * a 4.5 * 15.5cm in Quintus waits static pressure pressurization (according to method described in the SE9303821-4).This timber is to pressurize 2 minutes down in room temperature and 1300bar pressure.

Painted bath is according to the explanation on the relevant packing box, and with the HERDINS  KTABETS of powder type, the bird of No 59 wood is black to be mixed and made into painted bath with water (not ammonification).The solution of being prepared is warmed to boiling point, the wood piece of pressurized treatments is inserted in this solution kept about 2 hours under this solution fluidized state then, it is in addition dry to take out timber then.Again this timber is sawn into two, this shows that this timber is that entire body is painted.

Example 2

In the 2nd test by of the poplar pressurization of the described identical mode of example 1 to 4 * 4 * 5cm.Prepared painted bath and this timber has been carried out the painted processing of entire body according to example 1 described same procedure with the same manner.What make an exception is with the HERDINS  KTA BETSNo 51 red HERDINS  KTA BETS No.59 that replaced.Then this timber being taken out a saw from painted bath is two again, and entire body is painted already can to see this timber thus.

The invention provides the method for entire body stained wood that can widely used excellence.In fact all types of timber all can be handled according to the present invention.In addition, the present invention can be used for producing the entire body stained wood that has improved hardness.This kind entire body colorize method is required great effort unlike manual paint or stained wood.As previously mentioned, the scope of application comprises the wooden frame, axle, sports equipment of ground plate and table top and plank, wooden ladder, kitchen articles, gummed etc.When this woodwork and wood products sustain damage and wear and tear, can sandblast and appears the painted flawless colored surface that do not need again that makes new advances in their surface.Damage and abrasion to this wood surface are can be not remarkable as other timber situations, and this is that entire body is painted because of this timber, thereby will can not expose the timber of " in vain " owing to perished surface.Can also produce and have the cutter that can stand the wooden handle of dyeing that tableware washer does the wash.

Claims

1. Process for producing whole-colored wood, wherein the wood is isostatically pressurized in a first step at a pressure of more than 800 bar, preferably more than 1000 bar, and then released from the pressure, characterized in that the wood is subsequently treated in a second step Placed in a liquid bath containing the solvent and the colorant dissolved therefrom, which is absorbed by the wood piece.

2. The method according to claim 1, characterized in that the wood piece is subjected to at least one additional isostatic pressing at a pressure of greater than 800 bar, preferably greater than 1000 bar.

3. The method according to any one of the preceding claims, characterized in that an aqueous solvent is used in the liquid bath.

4. 3. A method as claimed in any one of the preceding claims, characterized in that the staining agent used has a molecular size such that it penetrates into the wood piece.

5. 3. A method as claimed in any one of the preceding claims, characterized in that the staining agent used is so polar that it penetrates into the wood piece.

6. A method as claimed in any one of the preceding claims, characterized in that a colorant comprising an azo dye is used.

7. A whole-body stained wood piece, characterized in that the wood piece has been given a whole-body coloring according to the method of claims 1-6.