JPS60501400A - Method for impregnating fibrous materials - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Method for impregnating fibrous materials The present invention is a method for impregnating a layered or web-like porous or fibrous material with a liquid impregnating agent. Regarding the law.

Advantageously, the method according to the invention is imparted with specific properties by a suitable impregnating agent. It is used to treat new porous and/or fibrous materials. Processed material and cellulose fibers including cotton fibers with small internal voids or cellular voids; Natural fibers such as wool fibers or have voids inside or spaces between them. Contains artificial fibers, etc. These man-made fibers can help form these spaces, for example. The fibers may have a cross-sectional shape with protrusions that promote Many spaces can be created within the material consisting of these fiber masses. Processed material The material may be, for example, a fibrous cellulose material made from straw, wood shavings, or other wood. It can also be made of paper such as composite paper, paper board, cardboard, or woven or non-woven fabrics. It may be in the form of any textile material. This treated material, however, cannot be sintered or glued. consisting of or containing a non-fibrous material, such as a porous material formed by It may also be something that - For example, layered materials should be impregnated with Fibers encapsulated in a porous matrix such as a concrete mass containing reinforcing fibers. It may consist of fibers.

Applicant's international patent application PCT/DK82100052, publication number W0821 According to 04.271, cellulose and wool fibers and other hollow fibers These fibers can be prepared by impregnating them with an appropriate liquid impregnating agent. It is known to impart desirable properties to textile materials. According to this known method, The process involves passing the fibrous material through a gripping area formed between a pair of high-pressure rollers; There, in the presence of an impregnating agent, the fibers are subjected to high pressure, which deforms the cell walls and allows air and gas to escape. The impregnating agent is extruded from the cell cavity and the fiber wall returns to its original shape after compression. is carried out by inhalation into the cavity. The efficiency of this known method is In an environment where the fibers are strongly compressed and at the same time surrounded by a sufficient amount of liquid impregnant. Relying on the compression rollers, only a relatively thin layer of fibrous material is passed between the compression rollers. However, this creates a substantial capacity limitation and allows the fiber material to The fiber material is given an excess amount which is later extruded by the rollers before passing through the , and must be returned to the impregnating agent reservoir. Some types of impregnating agents On the other hand, this leads to decomposition of the impregnating agent, for example by oxidation.

British Patent Specification No. 1,246.806 describes a method for holding a web of textile material under a high vacuum. 3 vacuum chambers continuous passage and then direct introduction from the vacuum chamber into a bath of impregnating agent. It is disclosed that the fabric material is impregnated by the method. In fact, web-like cloth The textile material is passed continuously through a vacuum chamber followed by a bath of impregnating agent. can effectively prevent the impregnated material from being sucked into the vacuum chamber. It is almost impossible to create a sealing means that Furthermore, the use of this known device However, it is not possible to precisely control the amount of impregnating agent added to the fabric. .

West German Publication No. 2,452,784 describes applying a liquid layer of agent on one side of a paper web. A method is disclosed.

For this purpose, the paper web is passed around rollers, thereby The outer surface of the paper web is brought into contact with a liquid bath, after which the paper web passes through a wiper, The wiper forms part of the wall of the chamber and is capable of controlling the atmospheric pressure created within the chamber. It is pressed against the paper web by a low pressure of: This low pressure below atmospheric pressure is This creates an air flow that penetrates the paper web and removes its coating. The present invention provides a method for applying an impregnating agent, by which the impregnating The agent penetrates through the entire thickness of the web-like material and penetrates into fibrous and/or porous materials. Get into it. Furthermore, the method according to the present invention is as follows: 4.T! Omoteaki GO-50140 0(3) The amount of impregnating agent introduced into the nib material can be precisely controlled.

The method of the present invention involves applying a liquid impregnating agent into a porous and/or fibrous material in the form of a layer or web. This method provides a method for applying force to porous and/or fibrous materials. The web material is exposed to a high vacuum and the impregnating agent is added to the web material while it is exposed to the vacuum. applied to at least one side of the material, and the pressure applied as it passes through the layer of material, i.e. the web material. The force loss occurs on one side after application of the impregnating agent and while the web material is exposed to vacuum. is maintained in the direction from one side to the other. Porous and/or fibrous materials under high vacuum By exposing the cavities in porous and/or fibrous materials, including the cellular cavities of the fibers, The sinus is emptied and the impregnating agent then freely enters it, more or less fills the cavity. This penetration of the impregnating agent into the cell cavities causes the web material to return to normal pressure. Exposure promotes the tendency of outside air to enter the emptied cavity. The impregnating agent enters before the air. Is the layer of web material on the side where the impregnating agent is applied? By maintaining a small pressure drop across the web from one side to the other, the impregnant It can penetrate to any desired degree into the layers of material. If desired, the impregnating agent can be applied throughout It penetrates through the layers of the web material and complete impregnation is obtained.

The vacuum to which the porous and/or fibrous material is subjected is dependent on the desired impregnation efficiency. It is. To obtain sufficient impregnation and almost complete filling of the cavities of the material with the impregnating agent. For example, it is desirable to use a high vacuum, such as a 99-degree vacuum.

The impregnating agent may be applied to porous and/or fibrous materials by any method. , for example, by brushing the web material or dipping it in an impregnating agent. It is done by However, as mentioned above, impregnation agents can be applied by spraying, for example. It is preferable to apply the impregnating agent in a spray state, and the impregnating agent can be added to the cilanib material as desired. It may be applied on both sides.

If the impregnating agent is applied to only one side of the web material, this side shall be the bottom side. is preferred. Because the impregnating agent then under the influence of the pressure difference between the two sides of the web, while being moved upwardly through the web.

In order to improve the penetration of the impregnating agent into the cavities of fibrous and/or porous materials, It is critical that the material be substantially free of moisture. Therefore, the material to be treated Preferably, the material is heated before and/or during contact with the impregnating agent. This heating Moisture is thus removed from the material being treated and the viscosity of the impregnating agent is reduced, thereby This facilitates the penetration of the impregnating agent into the cavities of the treated material. For example, the material to be processed is It may be heated to about 200°C.

Drying of the material to be treated need not be carried out by heating, for example by passing the material through This can be done by flowing a dry gas such as dry nitrogen. Further freeze the material. It is also possible to freeze dry.

According to the invention, the porous and/or fibrous material is , may be corona treated. This type of corona treatment reduces the dynes of the material being treated. ne) greatly reduce the degree. This means that the impregnant does not enter the cavities or pores of the material being treated. It means that it can always penetrate easily.

As mentioned above, porous and/or fibrous materials become air-free and have some kind of After drying and corona treatment, the batch is placed in a vacuum chamber where the impregnating agent will be granted. However, because it is a continuous process, the layers of material are formed into a web. Preferably, the web is continuously or intermittently passed through a vacuum chamber; The impregnating agent is applied. To reduce the viscosity of the impregnating agent it is placed in a vacuum chamber may be heated before and/or during application.

When the impregnating agent is applied to porous and/or fibrous materials under vacuum, the treated material Preferably, it is delivered to a hammer mill or other splitting device where it is The fiber material is divided into fibers, and more impregnating agent is added to the material during hammer mill operation. Enter.

The present invention also provides for preparing materials in the form of porous and/or fibrous layers or webs by means of impregnating agents. It also relates to plants for the treatment of This plant produces layered or web-like materials. The material fills the chamber with the first material. A processing chip is received by dividing it into a second space. a chamber, means for generating high pressure within the processing chamber; means for applying an impregnating agent to the side of the web material facing the space, and said second space; Means is provided for maintaining a low pressure inside the first space as well as within the first space.

The plant also includes a heat tunnel extending between the material supply rolls and the vacuum chamber. a vacuum chamber in which the web material passes from the feed roll through a tunnel. heating means configured to heat the web material as it travels to the bar; and the torque applied to the supply roll by a return winding means connected to the supply roll. A material moving hand that overcomes the pressure and pulls the web material from the feed roll through the tunnel. A stage is provided after the tunnel, and a stage is provided between the moving means and the heat tunnel in case of failure. A cutting means is provided for cutting the web.

The plant preferably has a splitting means such as a hammer mill, the material inlet being It communicates with a material outlet or a material outlet passage formed within the vacuum chamber.

by the action that the porous and/or fibrous material undergoes in the splitting means or hammer mill. The impregnating agent further penetrates into the internal cavities of the material.

It is preferable to re-form the convergent material or convergent layer from this divided material. There is a Ka\゛. Therefore, this plant has a separation drum installed downstream of the separation means. a particle or fiber separator having a gas permeable peripheral wall; A suction chamber and a pressure chamber are located along the circumference inside the drum, and the gas permeable wall of the drum The material coming out of the splitting means is sucked into the plant. It is configured to be fed to the peripheral wall of the separator drum opposite the chamber. Next The split fibrous material supplied from the splitting means is transferred from the splitting means to the suction chamber. to the gas-permeable peripheral wall of the separator drum opposite the fibrous material. The material forms a fibrous layer on the separator drum. This fibrous layer rotates in the separator drum. the fibrous layer is moved to a position opposite the pressurized air chamber by the separator. It is blown away from the drum and delivered onto a suitable conveyor. In this way, The block material is again formed by the split and impregnated material. However, this Alternatively, the impregnated fibers can be delivered directly from the hammer mill to the storage location or where it is used. It may be delivered to the location.

When using the method and plant of the invention, the fibers are subjected to a degree of pressure for vacuum impregnation. The fibers are subjected to crushing, which gives them a favorable flattened shape and encapsulation of the impregnating agent. Ru.

The invention will now be explained in more detail with reference to the drawings.

FIG. 1 shows the entrance end of an embodiment of a plant according to the invention with a drying tunnel. show, FIG. 2 shows the vacuum chamber of the embodiment of the plant according to the invention shown in FIG. It is the continuous central part with FIG. 3 shows the embodiment of the embodiment shown in FIGS. 1 and 2 according to the present invention. The final section with fiber separator is shown.

The plant shown in the figure is a paper material 10 in the form of a web or other fibrous and / or impregnating the porous material with one or more liquid impregnating agents in a continuous process. , configured to impart desired properties to the web-like material. Impregnation A web-like material 10 is fed from a feed roll 11 (see FIG. 1), and The wheel is horizontally locked to it by a mechanism actuated by compressed air. It is located on the shaft 12. Shaft 12 may be an eddy current motor. It is connected via gear 13a to a preferred motor 13b. This motor is hoisting It has the effect of imparting torque to the shaft 12 in the direction of This will be explained later. The paper web 10 unwound from the supply roll 11 is passed through a pair of feed rollers. 140 and then onto the roller table 15. If necessary, This roller table 15 has an adjustable side force side (not shown) and a web free force (not shown). cutting means for trimming the leading edge and connecting this trimmed end to the leading edge of the web; It may also include means for continuing. The web end is where the web material passes through the plant. It is preferable that they be joined by sewing so that they can withstand the high temperatures experienced when . After passing through the roller table, the web 10 is moved through the air by a compressed air cylinder 17. The pressure is sufficient to obtain a suitable contact pressure between the feed roller 16 and the paper web 100. It passes between a pair of feed rollers 160 that are pressed against each other. The roller 16 The paper web 10 is fed by the motor 18 and gear 19 at a speed corresponding to the desired feeding speed. Driven. The supply roller 16 is located directly at the preheating opening 20 provided on the foundation 21. The main oven 22 provided on the upstream side and on the foundation 23 is connected to the open 2 It is located immediately downstream of 0. Both ovens 20 and 22 are tunnel open. form, 11 Therein, the paper web 10 is made up of a number of longitudinally extending, vertically oriented layers made of metal. It is supported by a wall 24. Supported by lateral wires or rods (not shown) It is arranged between the rails 24 and is suitable for air flowing along the underside of the web in the oven. This causes considerable turbulence. Fresh air is supplied to the main oven 22 by an inlet fan 25. is supplied and preheated by the heat exchanger 26 through the heat exchanger 26 and the supply conduit 27. Fresh air is supplied to the upper and lower parts of the main oven 22 through branch conduits 27B and 27b, respectively. is blown into. In the upper part of the oven 22, the supplied fresh air is driven by a motor 29. and is blown into the upper heating chamber 30 by the driven fan 28. heating The chamber 30 includes an electric heating element 31 to which electrical current is supplied via a power source 32. be done. The fresh air heated by the heating element 31 passes through an obliquely arranged guide shaft. the main oven 2 through which the web 10 passes through slots formed between the fins 33; 20 Enter the upper part of the tunnel. As shown by the dotted line, the branch conduit 27b is The preheated fresh air supplied through the heating element 31 and the guide fins 33 is A fan 2 blows into the part of the oven tunnel located below the paper web 10. 8 is also provided below the oven tunnel. Heating with low relative humidity The fresh air then passes through the oven tunnel of the main oven 22 to the web 10. It flows along both the top and bottom sides in the web feed direction indicated by the arrows in FIG. main orb The cylinder 22 is equipped with an adjustable damper (not shown), and when it is in the open position, The fan 28 circulates heated air through the heating element 31 through the main oven. can be done. However, these adjustable Dunno e are usually closed. ing. The heated air from the main oven 22 preheats the web 10 in a countercurrent manner. continues to flow into the oven 20, so that within the opening the yarn ε web flows into the main oven 2 It is preheated by heated air coming from 2. An adjustable damper (not shown) is turned on. - is provided between the ovens 20 and 22, and flows from the main oven 22 onto both sides of the web 100. The flow of heated air reaching the preheating oven 20 can now be adjusted. are doing. Used heated air is transferred to feed roller λ A lateral suction with a suitable coarse filter 35 is provided immediately downstream of 16. It is sucked out from the heating oven 20 through the box 34. Both suction boxes 34 It is connected to the exhaust pipe 36 that reaches the heat exchanger 26, from where the used and current The cooled heated air is discharged into the atmosphere through a conduit 37 and an exhaust fan 38.

corresponds to the feed roller 16, and the compressed air 3 A pair of feed rows that can be brought into contact with and separated from the web by cylinder 40. A oven 39 is provided downstream of the main oven 22. Feed rollers 16 and 39 are preferably the same throughout, so that they operate synchronously, e.g. The feed roller pairs are interconnected by a chain drive mechanism.

The purpose of the oven mentioned above is to heat the web material 1o and from this as much as possible It removes a lot of moisture. Of course, these ovens cannot achieve this purpose. Other types of ovens may be used instead. - e.g. web material A high frequency oven removes most of the water it contains, followed by an infrared oven. oven and finally remove the crystallization water to remove the last part of the moisture from the web material. The dog may also be passed through a hot air oven with very turbulent flow.

As shown in Figure 2, the cut is made immediately downstream of the main oven 22 and feed roller 39. A device 41 is provided, for example by means of a percussion cylinder driven by compressed air. is operated and cuts the web material 1.0 very quickly. This cutting device is suitable for cutting veneers. Even if the web material is moving at speeds up to 40 m/min, The web material 1o can be cut along a straight cutting line. This cutting device 41 is used, for example, to cut the web material 10 in the event of a breakdown. web material When the material is cut, the torque generated by the motor 13b causes the inside of the oven to The part of the web material present in the This can cause the web material to overheat and break down in the oven, causing a fire or explosion. The resulting danger can be avoided. If desired, such as fire or explosion hazards can be further reduced by blowing an inert gas such as nitrogen into the oven. Can be done. The torque in the winding direction of the supply roll 110 generated by the motor 13b is It also helps ensure that the web material 10 is properly taut at all times. Safety For this reason, a pair of driven rollers 42, which act as guides for the web, are connected to the cutting device 41. It is located immediately downstream of the

After passing through the oven 20, 22 and the knife 41, the web material 10 is exposed to corona. It passes through a radiation device 43 and then through a vacuum impregnation unit 44 . The unit is a book The type described in the applicant's Danish patent application no. 1083/83 is convenient. It is advantageous. A pair of drive rollers 45 and 46 are located upstream and downstream of the corona radiation device 43, respectively. It is provided downstream of the empty impregnation unit 44. These drive rollers share a common is driven by a wheel drive mechanism 47 and a motor 48, which motor has an adjustable vortex The lower of the 3° pair of drive rows 245, 46 is preferably a current motor. Only the lower roller is driven by the motor 48, and the upper roller is driven by the motor 48. The roller has two threaded spindles, for example as shown in relation to the drive roller 46. 50 are pressed at a predetermined pressure by a manual wheel 49 that operates simultaneously. There is. The lowermost part of the drive roller 46 is higher than the circumferential speed of the lower roller of the roller 45. It is preferable that the surface speed is also driven at a slightly higher circumferential speed. This means that the driving The web material between the pairs of rollers 45, 46 is When it is stretched, it means that it is slightly stretched. This stretching, however, It can also be controlled by adjusting the pressure applied to the roller pair.

Downstream of the drive roller 45, the web material passes through a power source 51 and a terminal box 52 to a high Enter the corona treatment device 43 connected to the pressure generator 53. This corona treatment device 4 3, both sides of the web material 10 are irradiated with a high voltage and high intensity ionic discharge. , whereby the degree of dyne of the material on the surface of the irradiated web is greatly increased. Ko Corona irradiation involves the generation of ozone, so corona irradiation equipment is equipped with exhaust nozzles on both sides. Furthermore, the nozzle is connected to an exhaust fan 55 via an exhaust conduit 54. corona The irradiation device can be installed in the impregnation unit if desired, thereby There is no need to use a special exhaust stem for the na device.

After the web material 10 is irradiated with corona, the web material 10 is transferred to a pair of vacuum chambers 5. 7 through a vacuum impregnation unit 44 having an inlet passageway for introducing the liquid in a hermetically sealed manner. , and the web is hermetically discharged from the vacuum chamber via exit passage 58.

While the plant is operating, the impregnating agent is sprayed from a pair of pressurized vessels 59 under vacuum. are supplied to each of the chambers 57.

Each pressurized container 59 is connected to a high pressure piston via a tube or hose 60 and a liquid indicator 61. is connected to the pump 62. These high pressure piston pumps 62 Each high-pressure piston is equipped with a cylinder of the type used as a fuel injection pump. A large number of pumps, e.g. Connected to two injection or spray nozzles 63. Thus each cylinder has two connected to the nozzle. Each high pressure pump is driven via a chain drive mechanism 65 It is driven by a motor 64 whose effective stroke length, and therefore the amount of impregnating agent, varies with each It is regulated by a square-type motor 66 of a denotal display associated with the ponder. The functions of the rounded motor are controlled by the control desk 67 along with other functions of the plant. controlled by

For example, nozzle 63 has a diffusion angle of 60° and the pressure inside the vacuum chamber is very low. For example, if there is only about 10 mb, the impregnant will be sprayed through the nozzle. The pressure loss that occurs when After gasification, a particle size of 50-200 angstroms is obtained.

In the 70 rant preferred embodiment of the invention, four pressurized vessels are used; All of these are filled with an inert gas such as nitrogen at 5 to 6 atmospheres. one of the containers surrounded by a thermostatically controlled heating jacket, e.g. acrylate or alkyd ketene dimer or isocyanate. may be configured. The first two impregnants are pasty or viscous at room temperature. It has a consistency and requires heating to spray onto the web material. Therefore, this The inside of the container is maintained at approximately 120°C.

The hose 60 connected to this is also heated to maintain its contents at a temperature of 180°C. 2, and as shown in FIG. It is enclosed within a jacket 68 that is heated to reach a temperature of 0°C. Pressurization The nitrogen atmosphere inside the container and the heat removed as the impregnating agent is consumed require continuous high temperature for a long time. Reduces the risk of decomposition caused by impacts. Impregnation from the first pressurized vessel described above The agent is supplied to the first one of the vacuum chambers 57 through its nozzle 63, for example. The desired temperature inside Toro 8 is controlled by a separate thermostat. obtained by a controlled heater fan.

The other side of the pressurized container 59 is for Noricon oligomer and so-called binder which are liquid at room temperature. This other container does not need to be heated.

A third pressurized container holds a solvent such as kerosene, is connected to a supply hose, and is A cock connects this third container to the supply hoses of the first and second pressurized containers. and is also directly connected to the pressure ponder 0, thereby preventing failures and impregnating agent The impregnating agent can be quickly cleaned from within the system during changes.

The heated, dried and corona treated web material 10 is placed in a vacuum chamber 57. , in which the impregnating agent is applied in atomized form. Impregnating agents are fibrous and / or penetrate into the pores, spaces and cavities of the porous material, thereby resulting in effective impregnation. can get.

A fourth pressurized container on the top holds water, water glass or an electrolytic polymer; For example, the web or 19 Immediately after passing through the vacuum impregnation unit 44, the web material 10 is coated by a method not shown. will be granted. Application of these liquids serves at least one of the following three purposes: have.

(1) cooling of the material; (2) excess silane or isocyanate for environmental reasons; (3) The silane and oligomer are produced by water coming from the atmosphere. must react with water, whether it comes from a source or is supplied separately. So, to finish the impregnation process.

The vacuum in the vacuum chamber is created by an air suction device 69 equipped with a vacuum blower or vacuum pump. Therefore, it is obtained.

When the web material 10 passes through the vacuum impregnation unit 44 as shown in FIG. is wound onto a stock roll 70 driven by an eddy current motor (not shown). Then, the web material is rolled between a pair of rollers 71 and rolled onto a web roll 72. pass around. The rotation speed of the hoisting motor is controlled by a diameter sensor and A sensor 73 actuated by compressed air ensures accurate relocation when the roller 7 rotates. Ensures that you can control the web laterally.

If the web tears or breaks, it is detected by the third sensor and the winding operation is performed. stop. If it is necessary to split the web material 10 soaked in a vacuum chamber, The web material is driven by a motor 75, Danish Patent Application No. 1084. /83 The machine is installed in a hammer mill 74 of the type described in No. Inside No Nmamil 74 The material to be separated passes through a conveyance path 75 to a net drum 7 driven by a motor 78. 7 to a fiber separator 76. The motor is an eddy current motor. This drives the drum 77 at a controlled rotational speed. The net drum is For example, it is made of stainless steel and has a mesh size of 550 mesh, /L:m, The material to be divided passes through a conveying passage 75 having an inspection glass 79, and passes along its axial direction. This is fed along the entire length. The control unit is swingably attached to the outlet end of the conveyance path. "The L roller 80 is elastically pressed against the net drum 77. Fiber material 81 is fed into the net drum 77, there is a stationary suction chamber in the drum. There is a This creates a strong force from inside the net drum. Powerful suction removes dust and chemical residue into the drum. , while the fibers are held on the circumference of the net drum, which allows the fibers to form a smooth layer. It can be accomplished. When moved 1/4 turn with the fiber drum, the fibers move into another A series of compressed air nozzles passed through rubber rollers 82 and then placed within the drum. Stationary compressed air chamber equipped with Head up. The powerful airflow generated by this nozzle is a net drum. The fiber layer is released from the net drum 77 and the newly formed web is released from the net drum 77. The material 81 is delivered onto a conveyor 84 via a mold rail 83. net drum Air sucked from the suction chamber in 77 passes through tube 85 and enters the bag filler. to a cleaning or filter plant 86 with a filter.

Conveyor 84 is made from reinforced comb sheet and nylon A conveyor belt with lateral guides made from This conveyor bell The collector delivers the impregnated fibrous material to a collection container 87 or other collection location.

If the material to be treated in the floatant is cellulose fiber, it will be formed on the conveyor 84. The laminated web can be processed in a variety of ways.

(a) The coated fibers may be heat treated if special film-forming polymers are used. The fibers can be convergently bonded as a rock wool-like mat by (b) specially A paper web is created directly by heated rolling of coated fibers, (c) Structural plates and the like which are made into different densities by pressing treated fibers. It is possible to obtain a variant of .

Various variations and modifications of the embodiments shown in the figures can be made within the scope of the invention. You should understand that. Thus, the material to be impregnated need not be in the form of a web. After being subjected to appropriate heating and drying treatment, it is placed in a vacuum impregnation chamber in patches. may be introduced. Furthermore, the material to be treated is a fiber-reinforced polyester impregnated with reinforcing fibers. It may be in the form of a hard plate such as porous concrete.

Example Unbleached recycled paper (400 g/m2) with a web width of 1200 mm is shown in Figure 1. It is passed through the oven 20.22 at a speed of 11 m/min, and the temperature in the oven was maintained at 300°C. The temperature of the paper was determined to be 175℃, and the room temperature was The temperature was 23°C.

The corona irradiation device 43 shown in FIG. The impregnating agent was fed into the first vacuum chamber at a rate of 36 kg/hour, and into the second vacuum chamber at a rate of 36 kg/hour. It was adjusted to supply only 3.6 kg/hour.

This creates 10.2 parts by weight and 1 part by weight of impregnating agent in the two vacuum chambers, respectively. was granted. Inside the first vacuum chamber is a TES40 (West German Vasogalhemi). Ethyloxysilane with 1-9 silicon atoms per molecule) and Milan A -100 (γ-aminopropyltriethoxydisila manufactured by Union Carbide, USA) A 94:6 mixture of silane coupling agent consisting of The empty chamber was filled with LUDOX H840 (an aqueous solution of silica particles manufactured by DuPont, USA). Lloyd's dispersion) was applied. The pressure inside the vacuum chamber was 550 mb.

In the fiber separator 76 shown in FIG. 3, the speed of the throat drum 77 is 14 m. /min, while the speed of conveyor 84 was 16 m/min.

A 35-minute operation was carried out on the ground under diagonal conditions, with a weight of 177.7 kg. The amount of separated fibers was obtained, but the translation submission of the amendment (Article 184-7, Paragraph 1 of the Patent Act) January 22, 1985 - Sunday Mr. Manabu Shiga, Commissioner of the Patent Office 1 Special V [Indication of application PCT/DK84.100044 2 Name of the invention Method for impregnating fibrous materials 3 Patent applicant Address: Denmark, -,,4320 Leil, Nilebey 74 Holbek Knoeld 4 agents Address: Shizuko Toranomon Building, 8-10 Toranomon-chome, Minato-ku, Tokyo (1) Translation of amendment 1 letter 1. Amended scope of claims of Japanese Patent Publication No. Sho GO-501400 (9’) [Received by the International Bureau on October 8, 1984 (08, 10, 84); Claims 1-20 have been replaced with amended claims 1-16. 〕1.Liquid applying the impregnating agent to the layered or web-like porous and/or fibrous material (10) A method, characterized in that the layer or web of material ≠ applying a high vacuum to both sides of the material (10) simultaneously. at least one side of the web material while the web material is subjected to a vacuum. The impregnating agent is applied and the pressure drop through the layer of material or web material (10) is A method characterized by maintaining the direction from one side to the other side.

Claim 1 or 2, characterized in that the 3-layer charge is subjected to a vacuum of 99 degrees. The method described in.

Quen 4. Claims characterized in that the '□ material is heated before and/or during the application of the impregnating agent. The method according to any one of ranges 1 to 3.

5. Claim 4, characterized in that the web material is heated to about 200°C. The method described in.

6. Characterized by the fact that the web material is corona treated before and/or during the application of the impregnating agent. The method according to any one of claims 1 to 5.

7. The web material (10) is continuously or intermittently passed through the vacuum chamber. , wherein an impregnating agent is applied thereto. The method described in item 1.

8. After applying the impregnating agent, the web material is divided into fibers in a hammer mill (74), and Claim 1, characterized in that an impregnating agent is additionally added to the mill as desired. 7. The method according to any one of Items 7 to 7.

9. Vacuum chamber (57), web material (10) inside the vacuum chamber (57) guide means (56, 58) for introducing and removing the vacuum chamber (57); ) for applying an impregnating material to the web material (10). A plant used for carrying out the method of claim 1 comprising: Guide means (56, 58) guide the chamber to the first position. true to split into second space It is configured to pass through an empty chamber (57), and a high vacuum is maintained in both these spaces. , and a slightly higher vacuum is maintained in the second space than in the first space. Means (69) are provided for directing the impregnating agent into the first space, and means (69) for impregnating agent flow force. A plan characterized in that the plan is configured to apply fluid forces to the facing surface of the web material. to.

10. Impregnating agent application means (59 to 63) were provided in the first space of the vacuum chamber. - or more spray nozzles (63). Ground as described in Section 9.

11. A quiz about spray nozzles being used as fuel injection nozzles in internal combustion engines. 11. The plant according to claim 9 or 10, characterized in that:

12, the guide means are in the vacuum chamber (57) and the web material (10); The web material is hermetically sealed so that it can be passed continuously or intermittently through a vacuum chamber. characterized by comprising inlet and outlet passageways (56°58) configured to receive The plant according to any one of claims 9 to 11.

13 The corona discharge device (43) for corona treatment of the web material (10) is Claim characterized in that it is provided upstream and/or in the empty chamber (57). The plant according to any one of items 9 to 12.

14, extending between the web material supply roll (11) and the vacuum chamber (57); The web material (10) is pulled from the supply roll (11) through the tunnel into the vacuum chamber. heating means (31) configured to heat the material (10) as it is passed; a heating tunnel (20, 22), including a heating tunnel (20, 22), 4 below the tunnel (20, 22); The supply roll (11) is The web material (1o) is pulled from the supply "1-ru(]]) by overcoming the applied torque. a web moving device configured to cause the web to pass through the 1// channel (20, 22); steps (45, 4, 6) and installed between said moving means and the heating tunnel, in case of failure , characterized in that it comprises cutting means (41) for cutting the web material. The lant according to claim 12 or 13.

15, preferably equipped with a fiber splitting means such as a hammer mill (74), the material inlet of which is It communicates with a material outlet passageway (58) formed within the empty chamber (57). The plant according to any one of claims 12 to 14 characterized by:

16, installed on the downstream side of the fiber splitting means (74), and has a suction chamber circumferentially inside it. Separation drum (77) with a gas-permeable peripheral wall in which a chamber and a compressed air chamber are arranged in parallel. a particle or fiber separator (76) comprising a drum gas permeation chamber; The material (81) is passed from the fibrillation means (74) into the suction chamber by claim characterized in that it is supplied to the peripheral wall of the separating drum (77) on the side opposite to the bar; The plant according to item 15.

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Claims (1)

[Claims] 1. Application of liquid impregnating agent to layered or web-like porous and/or fibrous materials the porous and/or fibrous material is subjected to a high vacuum, and the impregnating agent is subjected to a vacuum. applied to at least one side of the web material during the application of the impregnating agent; The pressure drop through the layers of material or web material while the material is subjected to vacuum is A method in which the direction is maintained from one side to the other. 2. The method according to claim 1, wherein the impregnating agent is applied to the material in an atomized state. 3. A method as claimed in claim 1 or 2 in which the material is subjected to a vacuum of 99 degrees. 4. The layered or web-like material extends substantially horizontally during application of the impregnating agent; Claim 1, wherein said one side of the web-like material to which is applied faces downwardly. ~The method according to any one of paragraphs 3. 5. Claim 1, wherein the material includes natural fibers such as cellulose fibers or wool fibers. ~The method according to any one of paragraphs 4 to 4. 6. Claims 1 to 5 in which the material is heated before and/or during application of the impregnating agent. The method described in any one of the above. 7. The method of claim 6, wherein the material is heated to about 200°C. 8. The material is corona treated before and/or during the application of the impregnating agent. The method according to any one of paragraph 7. 9. The material layer or web material is passed through the vacuum chamber continuously or intermittently. , in which the impregnating agent is applied. Method. 10 After applying the impregnating agent, the web material is split in a hammer mill, Claims 1 to 9, in which additional impregnating agents are added as desired. The method described in any one of the above. 11. Treating the porous and/or fibrous layer or web-like material with an impregnating agent A plant for use in a chamber in which the material divides the interior of the chamber into a first and a second space. a processing chamber configured to receive a layered or web-like material; means for creating a vacuum within the chamber; means for applying a lower pressure to a surface of the web material in a second space than in the first space; A plant comprising means for maintaining it within a space. . 12. An impregnating agent application means is provided in the first space of the vacuum chamber - or more 12. A plant according to claim 11, comprising a spray nozzle of. 26 13 The type of spray nozzle used as a fuel injection nozzle for internal combustion engines. The plant according to claim 11 or 12. 14 The means for maintaining a low pressure within the second space comprises a vacuum source in communication with the space. The plant according to any one of claims 11 to 13, which includes: 15. An inlet configured for the treatment goo dumper to receive the web-like material in a sealed manner. and an outlet through which the web-like material can pass through the processing chamber. The plant according to any one of the ranges 11 to 14. 16 The layered or web-like material extends substantially horizontally within the processing chamber. Claim 11, wherein the first space is located below the web-like material. - The plant according to any one of Item 15. 17 A corona discharge device for corona treatment of the material to be treated is located upstream of the treatment chamber. and/or any one of claims 11 to 16 provided therein. Plants listed. 18, extending between the material supply roll and the processing chamber, wherein the web material is on the supply roll; and configured to heat the material as it is delivered through the tunnel to the processing chamber. a heating tunnel comprising a heating means formed downstream of the tunnel, the reverse winding handle being provided downstream of the tunnel; The web material is removed from the feed roll by overcoming the torque applied to the feed roll by the steps. Material moving means configured to extract material and cause it to pass through a tunnel; installed between the means and the heating tunnel, cutting for cutting the web in case of failure The plan according to any one of claims 15 to 17, comprising means. to. 19 Preferably, it is equipped with a fiber splitting means such as a hammer mill, and the ladle inlet is connected to a vacuum chamber. Claim 11 communicating with a material outlet or material outlet passage formed in the bar. - The plant according to any one of Item 18. 20 Equipped with a particle or fiber separator installed downstream of the separating means, and the separator is It has a body-permeable peripheral wall and a series of internal suction chambers and pressurized air chambers. the chamber is formed outwardly by the gas-permeable wall of the drum, thereby material from the separating means is fed to the peripheral wall of the separating drum opposite the suction chamber. A plant according to claim 19.