JPH0957711A - Method and device for impregnation of cross section of wood, and water-soluble resin colorant for wood impregnation - Google Patents

Abstract

PURPOSE: To increase the efficiency of imprecation by reversing the directions of pressure injection and suction of an impregnation agent with time so that an alternating impregnation process is performed. CONSTITUTION: Sucktion is performed through adapters 4A, 4B to one of the cross sections of a raw material wood in the internally packed impregnation agent of a pressure caldron 1 so that a negative pressure is generated in the cell lumens of the corresponding cross section of the wood and also in the cell lumens communicating with the cell lumens of the corresponding cross section. On the other hand, the impregnation agent is injected under pressure into the cell lumens of the corresponding cross section and the cell lumens communicating with the cell lumens of the corresponding cross section through the adapters 4A, 4B, so that the wood is impregnated with the agent. After that, the raw material wood is impregnated with the agent from the cross section through the adapters 4A, 4B by reversing the directions of pressure injection and suction of the agent in time switching manner. Thus the alternating pressure injection and suction of the agent from the cross section is repeated a few times, depending on necessity. Consequently, it is possible to evenly inject an adequate amount of the agent up to both right and left ends of the raw material wood, even if it has gnarls or complicated veins. For this reason, it is possible to significantly shorten time required for the impregnation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for impregnating wood with an impregnating agent which impregnates a wood core with an impregnating agent for modifying wood and the like.
A device for that, and using the device to impregnate wood,
Hardening reaction by heating to strengthen wood, repel insects,
Sensitive to water-soluble wood resin impregnated colorants that are antiseptic and colored.

[0002]

2. Description of the Related Art In recent years, wood resources have been rapidly decreasing on a global scale, and depletion of those resources is becoming a problem, so more effective use of wood is desired. . For this reason, research on methods for modifying wood and the like has been actively conducted in various fields. One of the methods is a method of impregnating wood or the like with an impregnating agent for modification.
There are roughly three conventional impregnation methods. The first is a diffusion permeation method, the second is a boiling treatment method, and the third is a depressurization treatment method.
However, impregnation of wood or the like with an impregnating agent is quite difficult, and all of these methods have drawbacks, which are not satisfactory.

[0003] Therefore, further researches have been made and proposed, such as wood in which a press-fitting part and a suction part are fixed to both sides of the wood to create a negative pressure by suction from one side and press the impregnating agent from the other side. An impregnation method and an apparatus therefor. (For example, JP-A-3-184801) In this method, the impregnating agent is forcibly pressed in from one of the wood mouths, and suctioned from the other wood mouth to easily permeate the impregnating agent into the cell cavities of the wood. Although the impregnating agent is made to spread quickly to the core, the problem remains, such as press fitting impregnation is unidirectional and is not suitable for long products that are difficult to impregnate due to unevenness in the impregnated part. ing. Further, there were water-soluble impregnating agents and solvent-type impregnating agents which were based on the conventional wood impregnation method, but there was no impregnating agent based on the above-mentioned wood-mouth impregnating method.

[0004]

DISCLOSURE OF INVENTION Problems to be Solved by the Invention The inventors of the present invention have conducted research to further improve the above-described method of impregnating the mouth of the mouth. Solving the inadequate problem, the impregnating agent was sucked and infiltrated alternately from both wood mouths so that the impregnating agent could be spread evenly to both ends even for long objects, and the impregnation efficiency should be further enhanced. We have developed an alternate impregnation method for wood. In addition, we have developed a highly practical wood-end impregnation device that makes it possible to perform this wood-opening alternate impregnation method simply by operating the on-off stop valves on the pressure side and suction side. Furthermore, we have developed a new water-soluble wood resin-impregnated colorant suitable for such a wood mouth suction pressure impregnation method, and made it possible to perform excellent wood modification more than before.

[0005]

The first invention to be granted a patent is to use the impregnating agent in the pressure cooker to suction from one of the ostium adapters of the raw wood and to communicate with the corresponding cell cavities of the xylem surface. While making a negative pressure in the cell cavity, the impregnating agent is impregnated into the cell cavity of the corresponding xylem surface and the cell cavity communicating with it from the other xylem adapter to impregnate it, and then from the xylem surface of the raw wood. The direction of press-fitting and suction of the impregnating agent through the mouth end of the impregnating agent is reversed with time to impregnate, and alternate press-fitting and suction from the mouth end of the impregnating agent are repeated several times as necessary. This is a characteristic method of wood impregnation.

According to the first aspect of the present invention, in the impregnating agent filled in the pressure cooker, the impregnating agent is press-fitted and sucked by using both left and right wood mouths. It is reversed with time and alternately impregnated. Originally, wood has a property that a substance contained in a solution has a high diffusivity and is easily permeated in a high water content state or a water saturated state. In such an easy-to-penetrate impregnant, the impregnant is forcibly impregnated into the cell cavity by pressurizing the impregnant from the other grain while using the mouth of the wood to create a negative pressure in the cell cavity. Of. That is, in the present invention, forced impregnation is performed from both the inside and the outside of the wood structure under conditions that facilitate impregnation, and the impregnating agent can be efficiently spread to the core in a short time. Further, according to the present invention, the forced impregnation utilizing the wood mouth is alternately performed by changing the direction with time. In other words, by changing the permeating direction of the impregnating agent, it is possible to efficiently impregnate the impregnating agent into every corner even if the wood has knots or the wood grain is complicated.

A second invention to obtain a patent is to put raw wood into a pressure cooker containing an impregnating agent under pressure, and cut the raw wood so as to traverse the trunk axis direction. The left and right both-sides mouths are fitted with a mouth end adapter, and the left and right both-side mouth adapters are connected to the left and right both-side mouth adapters via conduits so that the impregnating agent press-fitting device and the impregnating agent suction device can be switched by a switching device. The impregnating agent press-fitting device and the impregnating agent suction device are connected through a conduit so that they can be switched by a switching device, and the left and right are operated by switching the impregnating agent press-fitting device and the impregnating agent suction device with the switching device. A vacuum is applied from both cusp adapters to create a negative pressure in the cell cavities of the corresponding xylem surface and the cell cavities that communicate with it, and the impregnation pot is pressurized to the circumferential side along the trunk axis direction of the raw wood. The pressurized impregnating agent from is so pressed into the cell cavity is a butt impregnation of wood characterized by.

According to the second aspect of the invention, the impregnating agent filled in the pressure cooker is connected to the left and right wood mouth adapters and the pressure cooker by connecting the impregnating agent press-fitting device and the impregnating agent suction device so as to be switchable. In addition to applying pressure, the negative pressure inside the cell cavity is obtained by suctioning from both the left and right ostium adapters, which causes the impregnant pressurized from the peripheral side surface along the stem axis of the raw wood to enter into the cell cavity. It is an impregnation method in which press-fitting is performed.

A third invention to be patented is a pressure cooker which can make the inside of the handle higher than the normal pressure by supplying the impregnating agent through a pipe by the operation of the impregnating agent press-fitting device, and a pressure cooker in the pressure cooker. At least a pair of wood mouth adapters configured so as to be attached to the wood mouth surfaces of both ends cut so as to cross the trunk axis direction of the raw material wood to be housed, and a pipe connected to the wood mouth adapters has a pressure cooker An impregnating agent press-in device, an impregnating agent suction device, and a switching device are arranged outside, and the left and right both-sides mouth adapters can be made into a pressurizing system or a depressurizing system by operating the switching valve. The present invention impregnates wood with an impregnating agent using the impregnating apparatus configured as described above.

First step: storing raw wood in a pressure cooker,
Attach a pair of knurl adapters to the left and right ends of the wood.

Second step: By operating the impregnating agent press-fitting device and the impregnating agent suction device and opening / closing the switching device, the inside of the pressure cooker is pressurized, and one of the pair of wooden mouth adapters is depressurized. The system is set to a suction state, and at the same time, the other cusp adapter is used as a pressurizing system to set the same pressurizing state as the pot pressure.

The third step: operating the impregnating agent press-fitting device and the impregnating agent suction device and operating the switching device to make the one of the mouth end adapters a pressurizing system and the other of the mouth end adapters a depressurizing system so that both ends The suction state and the pressurization state of the adapter are reversed, and the reversal of the suction state and the pressurization state of the double-ended adapters is alternately repeated as needed.

Fourth step: If necessary, the both mouth end adapters are made into a depressurization system to be in a suction state and the pressure cooker is to be in a pressurization state. This is a method for impregnating the mouth of wood by impregnating the cell cavities of the raw wood with the impregnating agent through the above steps.

The third aspect of the invention embodies an apparatus for carrying out the first and second aspects of the invention, which are basic aspects of the invention.
It is intended to carry out a composite alternate impregnation of the cusps using the first invention and the second invention by using it, and it is a more complete method of impregnating the cusps of wood.

A fourth invention to be patented is a pressure cooker that can make the inside of the handle higher than the normal pressure by supplying an impregnating agent through a pipe, and a stored wood holding portion provided inside the pressure cooker. And at least a pair of wood mouth adapters configured to be attached to both ends of the wood mouth cut so as to cross the trunk axis direction of the raw wood held by the containing wood holding portion, and connected to the both wood mouth adapters. And a pipe extending out of the pressure cooker and an impregnating agent press-fitting device, an impregnating agent suction device, and a switching device arranged in the pipe. By operating the switching device, the left and right both-mouth adapters are press-fitted. The wood impregnating device is characterized in that it is configured such that it can be turned into a suction system or a suction system, and the pressure cooker can be put into a pressurized state or a depressurized state.

The fourth aspect of the present invention embodies the apparatus for performing the wood-mouth impregnation method according to the first, second and third aspects of the present invention. It is characterized in that the left and right both-sides mouth adapters can be easily made into a press-fitting system or a suction system by operating the switching device outside the pressure cooker, and the inside of the pressure cooker can be put into a pressurized state or a depressurized state.

A fifth aspect of the present invention, which is going to receive a patent, sucks from one of the ostium adapters of the raw material wood to make a negative pressure in the corresponding cell cavities of the xylem surface and the cell cavities communicating with the cell cavities, and at the other of the ostium adapters. A wood resin-impregnated colorant used in the wood mouth-impregnation method, characterized in that the impregnating agent is impregnated by press-fitting into the cell cavity of the corresponding xylem surface and the cell cavity communicating with it.
Colorants, polyhydric alcohols, catalysts, alcohol solvents,
In addition to water, an aldehyde and / or a water-soluble urethane resin is blended, and the wood is impregnated and then heated to cause a hardening reaction, thereby strengthening, insect repelling, preserving, and coloring the wood. Water-soluble wood resin impregnated colorant.

The fifth invention is a water-soluble wood resin-impregnated colorant developed on the premise of the wood impregnation method. It is characterized in that not only the impregnating agent is simply impregnated, but also the impregnating agent is cured by a heat treatment after impregnation so that the wood is strengthened, insect repellent, preservative and colored.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory view showing the constitution of an impregnating apparatus according to the present invention. The present invention relates to a pressure cooker 1, a stored wood holding portion 2 installed inside the pressure cooker 1, and a stored wood holding portion 2
At least a pair of wood mouth adapters 4A, 4B configured to be attached to both ends wood mouth surfaces 3A, 3B cut so as to cross the trunk axis direction of the raw wood material 3 held in
And a pipe 5 which is connected to the both-ends adapters 4A and 4B and extends out of the pressure cooker 1, and an impregnating agent press-fitting device 6, an impregnating agent suction device 7, and a switching device 8 arranged in the pipe 5.
Consists of

The pressure cooker 1 is a cooker body which can be closed by closing a door (not shown) at the entrance and exit.
It is connected to the impregnating agent press-fitting device 6, the impregnating agent suction device 7, and the switching device 8 through the pipe 5, and the impregnating agent is supplied through the pipe 5 by the operation of the impregnating agent press-fitting device 6 to constantly maintain the inside of the nail. It is a wood mouth-impregnating device configured so that the pressure can be higher than the pressure and the pressure inside the pressure cooker can be reduced.

Further, the pressure cooker 1 is internally provided with a stored wood holding portion 2 for holding the stored wood in an aligned manner so that the stored impregnating agent and the wood can evenly contact each other. There is. Moreover, the raw wood 3
At least a pair of the mouth end adapters 4A, 4B configured to be attached to the both end mouth end surfaces 3A, 3B cut so as to traverse the trunk axis direction are attached. Further, the two mouth end adapters 4A, 4B are provided with pipes 5a, 5
b is connected, but these pipes 5a and 5b are connected to the pressure cooker 1
Of the impregnating agent press-fitting device 6, the impregnating agent suction device 7 and the switching device 8 connected to the external pipe 5, and by these operations, the left and right both-sides mouth adapters are used as a pressurizing system. It is a wood mouth impregnation device configured so that it can be used as a pressure reducing system.

That is, the impregnating apparatus of the present invention comprises an impregnating agent distribution system in a pressure cooker, which is constructed so that the impregnating agent can be supplied under pressure into the pressure cooker and the impregnating agent can be sucked under reduced pressure from the pressure cooker.
Inside the cell cavity configured so that the impregnating agent can be pressure-supplied into the cell cavity of the raw wood through the wood mouth adapters 4A and 4B housed in the pressure cooker, and the impregnating agent can be suctioned under reduced pressure from the cell cavity. The basic configuration is that two systems, an impregnating agent distribution system, are provided in parallel by the impregnating agent press-fitting device 6, the impregnating agent suction device 7, and the switching device 8 arranged outside the pressure cooker. is there.

The impregnating agent press-fitting device 6 includes a pipe 5d connected to a pressure pump 9 as a drive source, a pipe 5d,
5h and the pressure cooker 1 are selected, and the switching valves Q, R, Y, and Z constituting the switching device 8 are selectively opened and closed, thereby selectively setting the press-fitting system so as to meet the processing purpose. It will be.

The impregnating agent suction device 7 also has a pipe 5f to which the suction pump 10 as a drive source is connected, as an end point.
While selecting the pipes 5d, 5e, 5h, the switching device 8
The opening / closing of the switching valves Q, R, X, Y, and Z constituting the above are selectively operated, whereby the suction system is selectively configured and set so as to meet the processing purpose.

A concrete piping structure in the embodiment of the present invention will be described below with reference to FIG. 1. The piping 5c extending from the pressure pump 9 is first connected to the inside of the pressure cooker 1 and is connected to the inside of the pressure stick 1. The impregnating agent can be press-fitted, and the pipe 5d branched from the middle of the pipe 5a is connected to the pipe 5c which is in conduction with the wood mouth adapter 4A in the pressure cooker 1 to connect to the wood mouth adapter 4A. Also, the impregnating agent can be press-fitted. At this time, a switching valve Q is provided in the middle of the pipe 5d and is provided only inside the pressure handle 1 or the pressure handle 1
It is possible to select so that the impregnating agent can be press-fitted into both the and the mouth end adapter 4A. Further, a pipe 5e is further branched from the middle of the pipe 5d passing through the switching valve Q, which is connected to a suction pipe 5f directly connected to the suction pump 10 via a switching valve R. The suction pipe 5f directly connected to the suction pump 10 has a switching valve X.
It is connected to the pipe 5b which is electrically connected to the mouth end adapter 4B in the pressure cooker 1 via. Further, the pipe 5g extending from the pressure cooker 1 is branched into two, and one branch pipe 5g is an extraction port 11 for extracting the impregnating agent from the pressure cooker 1 via the switching valve Z.
The other branch pipe 5h is connected to a pipe 5f (a position closer to the pressure cooker 1 than the changeover valve X) via a switching valve Y, so that the pressurized impregnating agent in the pressure cooker 1 is connected to the pipe. 5g-
It is configured such that the wood can be press-fitted from the B side wood mouth through the pipe 5f-the pipe 5b-the wood mouth adapter 4B.

Next, the impregnating apparatus of the above-mentioned embodiment is used to carry out the wood impregnation method of the third invention as follows. First step: Put the raw wood 3 in the pressure cooker, align and hold the raw wood 3 in a predetermined position by the stored wood holding portion 2, and attach the pair of wood mouth adapters 4A, 4B to the left and right wood mouths 3A, 3B of the wood.

Second step: pressurizing pump 9 and suction pump 10
The switching device 8 is operated so that the switching valves Q, X are opened and the switching valves R, Y, Z are closed. Then, the pressurizing pump 9 and the pipes 5c and 5d serve as the impregnating agent press-fitting device 6 to bring the inside of the pressure cooker 1 into a pressurized state, and the wood mouth adapter 4A serves as a pressurizing system to bring the same pressure as the pressure inside the cooker. . The pressure in the pot at this time was about 7 kg / cm ² .

At this time, the suction pump 10, the pipe 5f, and the wood mouth adapter 4B constitute an impregnating agent suction device.
It becomes a suction system. That is, the stored raw wood 3 is impregnated so that the impregnating agent is pressed in from the A side wooden mouth while being sucked from the B side wooden mouth in the atmosphere of the pressure impregnating agent. The suction force at this time is -1 Kg / cm ^2.
And

Third step: Next, with the pressurizing pump 9 and the suction pump 10 still operating, the switching valves R and Y are opened, and the switching valves Q, X and Z are closed. To operate. Then, the pressurizing pump 9 and the pipes 5c and 5h serve as the impregnating agent press-fitting device 6 to bring the inside of the pressure cooker 1 into a pressurized state, and the wood mouth adapter 4B serves as a pressurizing system. At this time,
The suction pump 10, the pipes 5d, 5e, 5f, and the wood mouth adapter 4A constitute an impregnating agent suction device, which constitutes a suction system. In other words, the stored raw material wood 3 is impregnated so that the impregnating agent is pressed in from the B-side mouth and sucked from the A-side mouth in the atmosphere of the pressure impregnating agent. This is a forced impregnation method in the opposite direction to the second step. In this way, the reversal of the suction state and the pressurization state of the double-ended mouth adapter can be easily repeated alternately by operating the switching valve.

Fourth step: Next, although it is an operation to be performed as necessary, the switching valves R, X are opened and the switching valves Q, Y, Z are opened while the pressurizing pump 9 and the suction pump 10 are operating. Only the switching device 8 is operated so as to be closed. Then, the pressurizing pump 9 and the pipe 5c serve as the impregnating agent press-fitting device 6 to bring the inside of the pressure cooker 1 into a pressurized state to form a pressurizing system. At this time, the suction pump 10, the pipes 5d, 5e, 5f, 5a and 5b, and the wood mouth adapters 4A and 4B constitute an impregnating agent suction device, which constitutes a suction system. That is, the stored raw material wood 3 is sucked from both left and right wood mouth sides A and B as needed, and the impregnating agent in a pressurized state is pressed into the cell cavity from the peripheral side portion of the raw material wood in the pressure cooker. Will be.

As described above, according to the third aspect of the present invention, the complicated and various impregnation steps as described above can be performed only by opening and closing the switching valve arranged outside the pressure cooker. The impregnating agent can be easily and efficiently impregnated into the cell cavities. Further, the wood-mouth impregnation method of the first invention can be performed by repeating the second step and the third step, and the wood-mouth impregnation method of the second invention can be realized by performing the fourth step.

Next, examples of the water-soluble wood resin-impregnated colorant of the fifth invention will be described. As mentioned above, wood has been modified for a long time by impregnating it with an impregnating agent.
There are three types of pressure reduction treatment methods. Although there are water-soluble type impregnating agents and solvent type impregnating agents which are based on these conventional wood impregnation methods, there are no impregnating agents based on the above-mentioned wood-mouth impregnation method.

However, impregnation of wood or the like with an impregnating agent is difficult, and any impregnating agent has drawbacks, which is not satisfactory. For example, as the conventional water-soluble type impregnating agent, types such as polyethylene glycol and polyethylene glycol monomethacrylate are used. However, wood impregnated with these water-soluble impregnating agents is said to have high utility value without impairing the texture of wood, but these are liquids because the injection liquid is not cured in wood. Water is easy to flow out and becomes unstable, or it is difficult to uniformly impregnate the water-soluble impregnating agent into the wood. Therefore, color impregnation causes uneven color and uneven coloring. However, there are drawbacks such as distortion, cracking, and insufficient effect of modifying workability.

As the solvent type impregnating agent, resins such as phenol resin, urethane resin and epoxy resin are used. Since these solvent type impregnating agents use an organic solvent, the solvent is diffused. It causes environmental pollution, has a bad workability due to its odor, or sealants are violated by the solvent, and the impregnating device can be damaged immediately.It also improves the strength, strain, cracking and workability of wood. There are drawbacks such as insufficient effect.

Then, further research was conducted, and it was proposed that a press-fitting part and a suction part be fixed to both sides of the wood to create a negative pressure by suction from one side, and the impregnating agent is press-fitted from the other side. An impregnation method and an apparatus therefor. (For example, Japanese Unexamined Patent Publication No. 3-184801 or the present invention) In this method, the impregnating agent is forcibly pressed in from the surface of one side of the wood, and sucked from the other side of the wood to allow the impregnating agent to easily penetrate and pass into the cell cavities of the wood. The impregnating agent can be quickly spread to the core of wood. The water-soluble wood resin-impregnated colorant according to the present invention is premised on such a new wood wood impregnation method,
It was developed.

That is, the characteristics of the water-soluble wood resin-impregnated colorant according to the present invention are as follows. First, a negative pressure is applied to the cell cavity of the corresponding xylem surface and the inside of the cell cavity communicating with it by sucking from one of the xylem adapters of the raw material wood, and the cell cavity of the corresponding xylem surface and The wood resin-impregnated colorant used in the wood mouth impregnation method, characterized in that the impregnating agent is impregnated into the communicating cell cavities by press-fitting. Second
In addition to the colorant, polyhydric alcohols, catalyst, alcohol solvent and water, aldehydes and / or water-soluble urethane resin are blended. Thirdly, the wood resin-impregnated colorant is impregnated into wood and then heated to cause a curing reaction,
It is characterized in that wood is strengthened, insect repellent, preservative, and colored by obtaining a heat-curable polymer.

In the water-soluble wood resin-impregnated colorant according to the present invention, the compounding ratio of the constituents and the heating condition are specifically determined depending on the application. It becomes as shown in Table 1.

[0038]

[Table 1]

Such a water-soluble wood resin-impregnated colorant according to the present invention is placed in the impregnating apparatus of the fourth invention of the present application, impregnating the wood by the wood mouth impregnation method of the third invention, and then the impregnating apparatus. The water-soluble wood resin-impregnated colorant has the following features.

Since this impregnating agent is water-soluble, it is easy to handle, has good workability, and is easy to clean machinery and equipment. Since the hardening reaction occurs by heating after impregnation, the finished product has almost no cracks or distortions and the dimensional stability is very good. Since the impregnating solution is impregnated at room temperature, it can be used any number of times and is very economical. Since this impregnating agent has good penetrability, even the core of wood can be uniformly impregnated, and even coloring can be achieved. This impregnating agent can obtain modified wood in a state close to natural wood without losing the natural feel of wood. The heat treated wood can be painted with any of the conventional paints.

A plurality of concrete compounding examples of the water-soluble wood resin-impregnated colorant according to the present invention are prepared below, placed in the impregnating apparatus of the fourth invention of the present application, and wood is impregnated by the mouth end impregnation method of the third invention. Was subjected to an impregnation treatment, and then taken out from the impregnation apparatus and subjected to a thermosetting reaction under the reaction conditions to obtain the target modified wood.

Example 1 Table 2 shows the formulation 1 of the water-soluble wood resin-impregnated colorant and its heating condition.

[0043]

[Table 2]

As the water-soluble wood resin-impregnated colorant, the one having the composition 1 was prepared and put in the impregnating apparatus of the fourth invention of the present application.
The wood was impregnated by the wood spout impregnation method of the third invention, then taken out from the impregnation apparatus and subjected to a thermosetting reaction under the reaction conditions to obtain a modified wood by good impregnation.

Example 2 Table 3 shows the formulation 2 of the water-soluble wood resin-impregnated colorant and its heating condition.

[0046]

[Table 3]

As the water-soluble wood resin-impregnated colorant, the one having the formulation 2 was prepared and put in the impregnating apparatus of the fourth invention of the present application,
The wood was impregnated by the wood spout impregnation method of the third invention, then taken out from the impregnation apparatus and subjected to a thermosetting reaction under reaction conditions to obtain a good modified wood.

Example 3 Table 4 shows the formulation 3 of the water-soluble wood resin-impregnated colorant and its heating condition.

[0049]

[Table 4]

As the water-soluble wood resin impregnated colorant, a mixture of formulation 3 was prepared and placed in the impregnating apparatus of the fourth invention of the present application,
The wood was impregnated by the wood spout impregnation method of the third invention, then taken out from the impregnation apparatus and subjected to a thermosetting reaction under the reaction conditions to obtain a modified wood that successfully achieved the purpose.

[0051]

According to the first aspect of the present invention, in the impregnating agent in the pressure cooker, a negative pressure is applied to the cell cavities of the corresponding wood ostium and the cell cavities communicating therewith by sucking from one ostium adapter of the raw wood. , The impregnant is impregnated into the cell cavity of the corresponding xylem surface and the cell cavity communicating with it from the other xylem adapter by press-fitting, and then the impregnant is pressed from the xylem surface of the raw material wood through the micellar adapter. The direction of suction and suction is reversed with time to impregnate, and alternate press-fitting and suction from the mouth of such an impregnating agent is repeated several times as necessary, so it is a long object and it has knots and complicated wood grain. Even with many raw wood materials, the impregnating agent can be spread evenly to both the left and right ends, and this has led to a dramatic reduction in impregnation processing time.

The second invention is also intended to spread the impregnating agent evenly on a raw material wood which is long and has many knots and complicated wood grain, and for that reason the impregnation treatment time is shortened. 1 is similar to that of the first aspect of the invention, except that the impregnation process into the cell cavities of the wood is performed by suction from the left and right wood mouths from the peripheral side surface of the wood. In particular, it is effective for efficient impregnation of the vicinity of the peripheral surface of wood. The present invention has a role of complementing the first invention, and by combining the two, it exerts great power for efficient impregnation of the entire wood.

The third aspect of the present invention is a composite wood-mouth alternate impregnation method combining the first and second aspects of the present invention, which can impregnate a long raw material wood such as knots and grain with any complicated cell cavities. This is the more complete method of impregnating the ostium of wood. By making full use of the composite alternate wood impregnation method of the third aspect of the invention, it is possible to considerably impregnate wood that has been treated under such bad conditions that it has been difficult to do so far.

The fourth aspect of the present invention embodies an impregnating apparatus capable of carrying out the above-mentioned complicated wood mouth alternate impregnation method. The feature is that the number of pipes is as small as possible, and both the press-fitting system and the suction system are provided as necessary. It can be set by a switching operation of a switching device (switching valve) arranged outside the pressure cooker. As a result, it has become possible to reduce the size of the apparatus without waste and to perform multifunctional impregnation treatment by a simple operation.

The fifth aspect of the present invention provides a new type of water-soluble wood resin-impregnated colorant based on the above-mentioned wood mouth impregnation method. Although it is water-soluble, it contains a resin, and after it is impregnated into wood, it undergoes a thermosetting reaction by heating, and a thermosetting product of a polymer is created in the inner cell cavities of the wood, resulting in strength of the wood, Thus, it is possible to obtain an impregnated modified wood which is superior in strain, crack, workability and the like to the conventional level.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an overall configuration of an impregnating device according to the present invention.

FIG. 2 is a side view of a main part of the impregnating device according to the present invention.

[Description of sign]

1 Pressure cooker 2 Storage wood holding part 3 Material wood 3A, 3B Wood mouth 4A, 4B Support frame wood mouth adapter 5, 5a, 5b, 5c, 5d, 5e, 5f, 5g, 5h
Piping 6 Impregnating agent press-in device 7 Impregnating agent suction device 8 Switching device 9 Pressure pump 10 Suction pump 11 Extraction port Q, R, X, Y, Z switching valve

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁶ Identification number Internal reference number FI Technical display location B27K 5/02 B27K 5/02 C (72) Inventor Takayuki Sato 2-chome Honmachi, Aoba-ku, Sendai-shi, Miyagi 7-3 Inside the cooperative association Sendai Furniture (72) Inventor Hideaki Takahashi 1-30-11 Kongozawa, Taichiro-ku, Sendai-shi, Miyagi Prefecture 72 Inventor Kiyoshi Sato 1-28-4, Midorigaoka, Taihaku-ku, Sendai City, Miyagi Prefecture (72) ) Inventor Kinji Tamagawa 1-16-14-11 Maruyama, Tagajo City, Miyagi Prefecture (72) Inventor Isao Suzuki 5-8 Shinsaka-cho, Aoba-ku, Sendai City, Miyagi Prefecture (72) Inventor Yoshitsugu Aizawa Minami, Ota-ku, Tokyo Rokugo 3-22-25 Akiko Co., Ltd. (72) Inventor Hiroshi Yamada-1 Shinmachi, Yashio-shi, Saitama Prefecture Union Paint Co., Ltd. (72) Hachiro Sato Shincho, Yashio-shi, Saitama -1 Union Pay cement within Co., Ltd.

Claims (5)

[Claims] 1. The impregnating agent in the pressure cooker is sucked from one of the ostium adapters of the raw wood to make a negative pressure in the cell cavities of the corresponding xylem surface and the cell cavities communicating with the cell cavities, and at the other ostium adapter. To impregnate the cell cavities of the corresponding xylem surface and the cell cavities communicating with it by impregnating the impregnating agent, and then change the direction of the impregnating agent's pressure injection and suction from the xylem surface of the raw wood through the xylem adapter. It is reversed and impregnated with time, and alternate press-fitting from the mouth of such an impregnating agent.
A method of impregnating the mouth of wood, characterized in that suction is repeated several times as necessary. 2. The raw wood is put in a pressure cooker containing the impregnating agent under pressure, and the left and right wood mouths are cut so as to cross the trunk axis direction of the raw wood. Is attached to the left and right both-sides mouth adapters via conduits so that the impregnating agent press-in device and the impregnating agent suction device can be switched by a switching device, and the pressure cooker is also connected to the impregnating agent press-fitting device via a conduit. The impregnating agent suction device is connected so that it can be switched by the switching device, and by operating the impregnating agent press-fitting device and the impregnating agent suction device while switching by the switching device, suction is performed from both left and right mouth end adapters. A negative pressure is applied to the cell cavities on the wood mouth surface and the cell cavities that communicate with the wood cavities, and the inside of the impregnation kettle is pressurized. Within The method for impregnating the mouth of wood is characterized by being press-fitted into. 3. A pressure cooker that can make the inside of the handle higher than normal pressure by supplying the impregnating agent through a pipe by the operation of the impregnating agent press-fitting device, and the trunk direction of the raw material wood housed in the pressure cooker. The at least one pair of wood mouth adapters configured to be attached to the wood mouth surfaces of both ends cut so as to cross with respect to each other, and the pipes connected to the both wood mouth adapters are connected to the impregnating agent press-fitting device or the impregnating agent outside the pressure cooker A suction device and a switching device are provided, and the left and right wood mouth adapters can be configured as a press-fitting system or a suction system by operating the switching valve, and the raw wood is stored in the pressure cooker.
The first step of attaching a pair of wood mouth adapters to the wood mouths on both the left and right ends of the wood, the operation of the impregnating agent press-fitting device and the impregnating agent suction device, and the opening / closing operation of the switching device bring the pressure cooker into a pressurized state, and The second step, in which one of the wood mouth adapters is made into a suction state by using a decompression system and at the same time the other wood mouth adapter is made into a pressure system and is in the same pressurized state as the pressure inside the kettle, the impregnating agent press-fitting device and the impregnating agent suction By operating the device and operating the switching device to make the one of the cusp adapters a pressurizing system and the other of the cusp adapters a depressurizing system, the suction state and the pressurization state of both cusp adapters are reversed, and if necessary. A third step of alternately repeating the reversal of the suction state and the pressurization state of both levers in such a way,
A fourth step in which the both mouth end adapters are made into a depressurized system to be in a suction state as necessary and the pressure cooker is in a pressurized state, and the impregnating agent is introduced into the cell cavities of the raw wood by the above steps. A method for impregnating the mouth of wood, which is characterized in that 4. A pressure cooker that can make the inside of the handle higher than normal pressure by supplying an impregnating agent through a pipe, a stored wood holding part installed in the pressure cooker, and a retained wood holding part. At least a pair of wood mouth adapters configured to be attached to the wood mouth surfaces of both ends cut so as to cross the trunk axis direction of the raw material wood, and extended to the outside of the pressure cooker connected to the both wood mouth adapters. And the impregnating agent suction device, the impregnating agent suction device, and the switching device that are installed in the pipe.By operating the switching valve, the left and right both-sided mouth adapters can be used as a pressurizing system or a depressurizing system. An apparatus for impregnating the mouth of wood, characterized in that the inside of the kettle can be pressurized or depressurized. 5. The material wood is sucked from one of the ostium adapters to make a negative pressure in the corresponding cell cavities of the xylem surface and the inside of the cell cavities communicating therewith, and from the other cusp adapter of the corresponding cavities of the cell surface of the xylem surface and A wood resin-impregnated colorant for use in the wood mouth impregnation method, characterized in that the impregnant is impregnated into the cell cavities communicating with it by impregnation, and the colorant, polyhydric alcohol, catalyst Alcohol-based solvent, water, and aldehydes and / or water-soluble urethane resin are added. The wood is impregnated and heated to cause a hardening reaction to strengthen wood, insect repellent, antiseptic, and color. A water-soluble wood resin-impregnated colorant characterized by the above.