JPH08332328A - Filter and usage thereof - Google Patents

Abstract

PURPOSE: To obtain a filter which can absorb dispersed oil and purify water and air effectively by a method in which fibrous resin which is prepared by splitting a laminated film of more than one kind of resin is exposed to hot air, net-shaped fibers is produced by shrinking the fibrous resin, fibers close to the surface are melt-bonded to each other to be able to keep the shape. CONSTITUTION: An oil fence for absorbing lubricating oil which leaked from equipment in a factory etc., is made of a cord-shaped filter 100. The filter 100 is prepared by a method in which a laminated film of polypropylene and polyethylene is drawn and split, and the obtained fibrous resin is heat-treated. A group 100a of fibers in the inside of the filter 100 are shrunk and interlaced, and a group 100b of fibers close to the surface are melt-bonded by heat treatment. The fibrous resin is shrunk and interlaced by heating to form bulky net-shaped fibers, and the fibers close to the surface are heated so that fiber groups are melt-bonded.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to the adsorption of oil spray, water,
The present invention relates to a filter used for purifying hot water or air and removing foreign substances.

[0002]

2. Description of the Related Art Conventionally, a large amount of lubricating oil has been used in devices operated in factories and the like. Therefore, if the device is repeatedly operated, lubricating oil will leak from the device,
Oil may be scattered on the floor. In this case, the worker may slip his or her feet due to the oil, so the floor surface is cleaned with a special detergent in the factory.

Further, in pools, bathtubs and the like, purifying devices for removing dust, hair, sputum and the like scattered in water have been used for the purpose of saving water. This purifying device sucks water in the pool or bathtub with a pump and press-fits it into the purifying device. Then, the purifying device causes the press-fitted water to flow out through the filter and re-enter into the pool or the bathtub. The filter used in this purification device is one in which a filamentous filter medium is wound around a shape-retaining material called a core, a non-woven fabric as a filter medium is wound around the core, and a plurality of non-woven fabrics are wound around the core. It is known that it is heavily wound.

As a tea strainer for a teapot or the like, a thread-shaped metal is used. Furthermore, underground pipes such as golf and playgrounds are buried. This underdrain pipe is a pipe having a plurality of water absorption holes on its surface, and guides rainwater and the like that have penetrated into the ground into the pipe and discharges it to sewers and rivers in the vicinity.

When a road is laid in a mountainous area, the hillside is cut to form a horizontal surface, and the road is laid on this surface. At this time, a slope called a slope is formed on the cut hillside. This slope is hardened with concrete or the like. Then, the concrete is provided with a plurality of through holes that allow the surface on the valley side and the surface on the mountain side to communicate with each other. Furthermore, a water absorption pipe communicating with the through hole is buried in the ground on the slope. This water absorption pipe is buried substantially horizontally, but it is buried so that the water absorption pipe end on the mountain side is slightly higher than the water absorption pipe end on the valley side. The water absorption pipe is a pipe made of polyethylene or the like as a main raw material and provided with innumerable water absorption holes. Then, the water absorption pipe guides the rainwater in the ground into the water absorption pipe from the water absorption hole, and flows out to the ground through the through hole. This can prevent landslides due to rainfall.

[0006] In addition, drainage outlets such as home sinks,
A strainer is attached to collect hair, dust and cut meal such as vegetables. In this strainer, the peripheral wall and the bottom of a bottomed tubular body are formed by a mesh-like or lattice-like wall surface to allow water to permeate and at the same time collect hair, mist and the like.

[0007] By the way, in the factory, there is a problem that the floor surface is dependent on human beings for cleaning, which takes time and labor cost. Further, a filter used in a purifying device such as a pool or a bath uses a shape-retaining material in order to improve its shape-retaining ability, and there is a problem that the number of parts is large and labor and cost are high.

Further, since tea strainers such as teapots use a mesh-shaped metal, there is a problem that it is not easy to wash when a clog of tea leaves or a tea cake adheres to this stitch.

Further, in the case of a water absorption pipe buried underground or an underdrain pipe buried in a slope, fine earth and sand and dust enter through the water absorption hole and accumulate in the pipe, which causes clogging. May occur. Further, in the case of a water absorption pipe or an underdrain pipe, since it is buried in the ground, high strength and shape retention ability are required. That is, when the soil is deformed by the weight, it becomes a resistance against running water, and rainwater cannot be sufficiently discharged. And, it takes a huge amount of time and effort to replace the water suction pipe or the underdrain pipe with a new one.

Further, the strainer attached to the drainage port of the sink or the like may allow fine cut meal, hair, etc. to pass therethrough, which may cause clogging of the water distribution pipe. Further, when the dishes and cooking utensils are washed, the oil adhering to them may pass through the strainer and enter the water distribution pipe and adhere to the water distribution pipe. Therefore, there is a possibility that the durability of the water distribution pipe may be deteriorated, and there is also a method of cleaning the water distribution pipe with a special detergent, but there is a problem that the effect is weak although it is time-consuming.

Further, in the case of a bathtub which is not equipped with a purifying device, hair, dirt, hot water and the like floating on the surface of the bath are scooped with a tub or the like, which is very troublesome. Furthermore, golf courses and sports fields are required to have good drainage and buffer properties. For this reason, it is necessary to lay a stratum having good water permeability and a buffer property under the soil or lawn on the surface of the earth. In order to lay this stratum, soil and sand mined at other places must be transported and laid, which is a problem in terms of cost and labor.

[0012]

Therefore, the present invention has been made in view of the above problems, and an object thereof is to solve the following matters.

First, it is an object of the present invention to provide a filter for adsorbing the oil leaked from the device in the factory and to save the labor for cleaning. Secondly, it is an object to manufacture a filter used for a pool or bath cleaning device with a simple structure and at a low cost to reduce the replacement cost of the filter. Also,
An object of the present invention is to provide a filter applicable to a bathtub that is not equipped with a purifying device, prolong the exchange cycle of hot water in the bathtub, and improve the water saving rate.

Thirdly, it is an object of the present invention to provide a filter as a tea strainer for a teapot or the like to reduce the labor required for cleaning the teapot. Fourth, it is necessary to prevent clogging of water absorption pipes and underdrain pipes buried in the ground, improve shape retention ability, and reduce labor and cost for maintenance of water absorption pipes and underdrain pipes. And

Fifth, it is possible to collect fine shavings and dust discharged to the drain of a domestic sink, etc., and to provide an oil-absorbing filter to reduce the time and labor required for cleaning the water distribution pipe. The task is to improve the durability of the water pipe.

[0016] A sixth object is to provide a filter having a buffering property while improving drainage and air permeability in a sports field or a golf course. Seventh, it is an object to provide a filter that removes hot water and water stains at low cost in a bathtub that is not equipped with a purifying device.

[0017]

In the present invention, the bulky fiber bundle of Japanese Patent Application No. 6-072287 previously filed by the present applicant is very useful as a material for a filter used to solve the above problems. It was made in consideration of having excellent characteristics. That is, the filter of the present invention is as follows in order to solve each of the above problems.

In order to solve the above-mentioned first to third problems, the filter of the present invention applies a hot air to a fibrous resin obtained by defibrating a film in which a plurality of resins having different melting points are laminated, and each fiber The resinous resin is contracted and the fibrous resin is entangled with each other to produce reticulated fibers, and the reticulated fibers are passed through or retained in the heated cylinder to fuse the fibers on the surface to impart shape retention. It has a filter. Here, the film-shaped resin is preferably a laminate in which polyethylene is attached to at least one surface of sheet-shaped polypropylene.

In order to solve the first problem, the filter is arranged so as to surround the device on the floor surface where the device for leaking oil is installed. In order to solve the second problem, the filter may be fitted in a purifying device that removes foreign substances in water or hot water.

In order to solve the third problem, the filter is fitted in the spout of the teapot. in this case,
The diameter of the filter may be slightly larger than the diameter of the spout, and the filter may be packed at the time of fitting.

The above filter may be fitted in an air filter. Next, in order to solve the fourth and fifth problems, the filter of the present invention applies hot air to a fibrous resin obtained by defibrating a film in which a plurality of resins having different melting points are laminated After shrinking the resin-like resin and entangled the fibrous resin, the bulky fiber bundle is provided with shape retention by passing or staying in the heated cylinder to fuse the fibers on the surface and bulky fibers. And a cylindrical body having an inner diameter equal to or smaller than the outer diameter of the converging body. Then, the bulky fiber bundle is fitted in the cylinder to form a filter.

In order to solve the fourth problem, in the filter of the present invention, a plurality of through holes are provided in the peripheral wall of the cylindrical body, and these are buried underground as a conduit pipe. Further, in the filter of the present invention, a plurality of through holes may be provided in the peripheral wall of the cylindrical body, and the through holes may be used as water absorbing pipes to be buried in the ground from the slope of the mountain.

Further, in order to solve the fifth problem, in the filter of the present invention, one end of the cylindrical body is formed to have a bottom, and the other end is connected to the drainage port. A through hole is provided at least at the bottom of the cylinder.

The connection here means a state in which the drain port and the inside of the cylindrical body communicate with each other without a gap. Next, in order to solve the sixth and seventh problems, the filter of the present invention applies hot air to a fibrous resin obtained by defibrating a film obtained by laminating a plurality of resins having different melting points, Bulky fiber bundles that shrink each fibrous resin and entangle the fibrous resins to produce reticulated fibers, and pass or retain the reticulated fibers in the heated cylinder to fuse the fibers on the surface. The body is produced, and the bulky fiber bundle is further woven or knitted in a lattice shape to form a sheet.

Here, in order to solve the sixth problem, in the filter of the present invention, a sheet-shaped filter is laid in the ground such as a playground or a golf. In addition, in order to solve the seventh problem, in the filter of the present invention, the outer diameter of the sheet-shaped filter is formed into substantially the same shape as the inner diameter of the bath.
Then, the sheet-shaped filter is floated on the surface of the molten metal.

The sheet-shaped filter can also be used as a filter for solving the first problem. That is, the sheet-like filter may be attached to a device that leaks oil, and the device may absorb the leaked oil.

The operation of the present invention will be described below. The filter of the present invention prevents the fibers from being dispersed by fusing the fiber group of the surface portion, and enhances the shape retention ability.
Furthermore, the filter of the present invention has a property of high oil absorption by using polypropylene as a main raw material.

When the above filter is installed around a device such as a factory, oil leaking from the device is adsorbed.
Further, when the filter of the present invention is fitted in the purifying device, it is fitted in the device without using a shape retaining material such as a core due to the shape retaining property of the filter. Then, the filter adsorbs the hair, sputum, and oil mixed in the water press-fitted into the device, and allows the water to permeate.

Further, when the filter of the present invention is fitted in the spout of the teapot, it adsorbs tea leaves, rice cake, etc. and allows only the hot water to pass through. When cleaning this teapot, the filter can be removed and only the teapot can be washed. When the filter becomes dirty, the dirty filter is pulled out from the spout and a new filter is fitted.

Further, when the filter of the present invention is fitted in the air filter, it is possible to adsorb dust and foreign matters in the air to clean the air. Next, the filter of the present invention is
When composed of a tubular body and a bulky fiber bundle, in addition to the shape retention of the tubular body, by the shape retention of the bulky fiber bundle,
The strength and durability as a filter are improved.

When a plurality of through holes are provided in the peripheral wall of the cylindrical body to be used as a water absorption pipe or an underdrain pipe, when the underground rainwater enters the water absorption pipe or the underdrain pipe, the bulky fiber convergence is achieved. The body adsorbs dirt, fine dust, etc. flowing in with water.

When the tubular body has a bottom and is used as a strainer used for the drainage port of the sink, the bulky fiber bundles are used for the fine cuts such as vegetables discharged from the drainage port together with water, hair and dust. At the same time, the oil, food oil, edible oil, etc. generated by washing the cooking utensils are adsorbed and only water is permeated.

Next, when the filter of the present invention is formed by knitting or weaving a bulky fiber bundle into a sheet shape, the sheet-shaped filter is laid in the ground such as a playground or a golf course to At the same time as improving water permeability, it also improves buffering properties.

Further, by floating the sheet-shaped filter on the surface of the bath water, the hairs floating on the surface of the bath,
Can absorb dirt, hot water, etc.

[0035]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. << First Embodiment >> A first embodiment of the present invention will be described with reference to the drawings.

FIG. 1 and FIG. 2 are views showing an embodiment using the filter of the present invention. The figure shows an example of a device 2 installed in a factory or the like, and an oil fence that adsorbs the lubricating oil leaked from the device 2.

The oil fence 1 is composed of a filter 100 formed in a string shape, and is installed on the floor so as to surround the device 2. [Description of Oil Fence 1] The oil fence 1 is the filter 100 formed in a string shape as described above.

3 and 4 are cross-sectional views of the filter 100. The filter 100 is polypropylene (PP)
It is produced by heat-treating a fibrous resin 12 obtained by stretching and defibrating a film 11 obtained by laminating polyethylene and polyethylene (PE). In the figure, the fiber group 1a located inside the filter 100 is contracted and entangled by the heat treatment, and at the same time, the fiber group 1b located on the surface is fused by the heat treatment.

Specifically, the sheet-shaped polypropylene (P
P), a laminated film 11 (see FIG. 5) having polyethylene sheets adhered on both sides is stretched, and the stretched laminated film 11 is defibrated to have a crimpable fibrous resin 12 (see FIG. 6).
Reference) is generated.

Next, the fibrous resin 12 is heated to shrink,
Then, the mesh fibers 13 are entangled with each other to form the reticular fibers 13 having bulkiness as shown in FIG. Further, the surface portion of the reticulated fiber 13 is heated to fuse the fiber group 1b located on the surface to generate the string-shaped filter 100, that is, the oil fence 1.

(Manufacture of Filter 100) FIG. 8 is a view showing an apparatus for manufacturing the filter 100. In the figure, the filter manufacturing apparatus includes a film forming machine 5, a stretching device 6, a defibrating device 7, a heating furnace 8, a heating jig 9, a cooling device 10, and a winding device 14.

The laminated film molding machine 5 is an apparatus for producing a laminated film of a polyethylene sheet (PE) and a polypropylene sheet (PP) by the coextrusion method multi-layer inflation film molding method.

The stretching device 6 is a device for heating the laminated film fed from the film forming machine 5 at a low temperature and stretching it by two nip rollers. That is, in this case, the rotation speed of the nip roller installed on the output side of the laminated film is made higher than the rotation speed of the nip roller installed on the input side of the laminated film. As a result, tension is generated between the output side and the input side, and the heated laminated film 11 can be stretched.

The defibrating device 7 is provided with a defibrating member in which a large number of needles are projected on the surface and a nip roller for pressing the laminated film oriented from the stretching device 6 against the defibrating member.

Further, the heating furnace 8 is one in which hot air is circulated in a box-shaped furnace, and is a device for allowing the fibrous resin 12 oriented from the defibrating device 7 to pass through the heating furnace 8. . Thereby, the individual fibrous resin 12 is contracted,
Adjacent fibrous resins 12 are entangled with each other.

The heating jig 9 is made by heating a tubular metal. Specifically, an iron pipe is heated and the reticulated fiber 13 is passed through the pipe. During this passage, the outer diameter of the reticulated fiber 13 is made slightly larger than the inner diameter of the pipe. Therefore, the reticulated fiber 13 is pressed into the pipe, and the surface of the reticulated fiber 13 comes into pressure contact with the inner wall of the pipe. Then, the fiber group 1b located on the surface of the reticulated fiber 13 is heated by the pipe and fused to each other.

The cooling device 10 is a device for producing the filter 100 by cooling the reticulated fiber 13 fused with the fiber group 1b on the surface by the heating jig 9. Specifically, cold air is applied to the fiber group 1b fused by the heating jig 9 to solidify the fused fiber group 1b. Then, the filter 100 cooled by the cooling device 10 is wound by the winding fiber 14.

The filter 100 manufactured in this way is
Due to the fusion of the surfaces, the shape-retaining property is high, and the shape is maintained in a string shape. The oil fence 1 is produced by cutting the filter 100 into the same length as the outer circumference of the device 2, surrounding the device 2, and then connecting both ends. As a method of connecting both ends, taping or a jig which is detachable from each other may be attached to each end.

Hereinafter, the filter 100 according to this embodiment will be described.
An example will be described. <Example> In the present example, homopropylene having a melting index (MI) of about 2 and a density of 0.901 and polyethylene having a melting index (MI) of 30 and a density of 0.950. Are laminated by the film forming machine 5,
The laminated film 11 is formed. At this time, the film forming machine 5 forms the homopropylene sheet to a thickness of 40 μm and the polyethylene sheet to a thickness of 20 μm. Therefore, the laminated film 11 has a thickness of 40 μm.
A film having a thickness of 80 μm is obtained by laminating a polyethylene sheet having a thickness of 20 μm on both sides of the homopropylene sheet.

Next, the stretching device 6 draws the laminated film 11 sent from the film forming machine 5 by the nip roller on the input side and orients it to the nip roller on the output side. Then, the stretching device 6 stretches the laminated film 11 by 7 times while heating the laminated film 11 at a low temperature of about 115 degrees Celsius between the input side nip roller and the output side nip roller.

The defibrating device 7 draws the laminated film 11 extruded by the output side nip roller of the drawing device 6 while pressing the laminated film 11 against the defibrating member, and defibrates the laminated film 11 into a fibrous state to produce a fibrous resin 12. To do. The defibration degree of the fibrous resin 12 is doubled.

The heating furnace 8 applies hot air of 140 degrees Celsius to the fibrous resin 12 extruded from the defibrating device 7 to shrink the fibrous resin 12 so that the fibrous resin 12 is separated from each other. The mesh fibers 13 are formed by interlacing.

The heating jig 9 allows the reticulated fibers 13 to pass through the iron pipe heated to 150 degrees Celsius to fuse the fiber group 1b on the surface portion. The inner diameter of this iron pipe is 13 mm
φ

The cooling device 10 applies cold air having the same temperature as room temperature to the reticulated fibers 13 oriented from the heating jig 9 to solidify the fiber group 1b on the surface to produce a bulky fiber bundle as the filter 100. To do.

The strength and elongation and bulkiness of the filter 100 manufactured according to the above manufacturing conditions are as follows. (1) Strength and elongation Fineness: 80,000 d Strength: 30 kg Strength: 0.38 g / d Elongation: 12% at maximum strength, 23% at break Heat shrinkage rate: 0% (heating at 100 degrees Celsius for 10 minutes) 2) Bulk altitude Bulk specific gravity: 0.072 g / cc Next, using the above filter 100, the oil adsorbability was measured. This measurement was performed according to the following procedures. The 80,000 d filter 100 is cut into a length of 10 cm. The weight x of the filter 100 having a length of 10 cm is measured. The filter 100 is immersed in oil of 20 ± 2 ° C. for 5 minutes. After 5 minutes, the filter 100 is taken out and placed on a wire mesh. Leave for 5 minutes Measure weight y of filter 100 after 5 minutes (y−x) / x (g / g) is calculated.
It is as shown in the table below.

[Table 1] From this measurement result, it can be seen that the filter 100 of the present embodiment is excellent in oil adsorption. When such a filter 100 is used as the oil fence 1, the device oil leaking from the device 2 is adsorbed by the oil fence 1,
It is possible to prevent the particles from being scattered on the surrounding floor surface. As a result, the time and labor required for cleaning the inside of the factory can be saved, and the risk of the worker slipping on the floor oil production can be prevented.

In this embodiment, an oil fence used on land such as a factory has been described, but it can also be used as an oil fence for adsorbing oil scattered on the sea.
For example, as shown in FIG. 9, a string-shaped filter is attached to the side of the ship. Alternatively, a string-shaped filter may be woven or woven into a sheet-shaped oil fence as shown in FIG.

Further, in this embodiment, the filter 100
Although a film made of polyethylene and polypropylene is given as an example of the raw material of the above, other resins may be used as long as they have different melting points.

<< Second Embodiment >> A second embodiment of the present invention will be described with reference to the drawings. FIG. 11 is a diagram showing an embodiment of the filter of the present invention.

The figure shows a cross-sectional view of a slope 15 formed by cutting a hillside when a road is laid in a mountain. A filter 16 is embedded in the slope 15 substantially horizontally from the surface of the slope 15 toward the ground in the slope 15. The filter 16 absorbs rainwater that has permeated underground and discharges it to the ground.

FIG. 12 is a perspective view of the filter 16.
The filter 16 is composed of a polyethylene cylinder 16a and a bulky fiber bundle 16c fitted in the cylinder 16a. Further, a large number of through holes 16b are provided on the side surface of the cylindrical body 16a.

The bulky fiber bundle 16c is formed by the same method as that of the filter 100 described in the first embodiment, and the description thereof will be omitted. Filter 1 of this embodiment
According to 6, the pebbles and the like are prevented from entering the tubular body 16a, and the pebbles and the like are accumulated like the conventional water absorption pipe and rainwater is discharged to the ground without impairing the water flow performance of the water absorption pipe. Can be made. Furthermore, the shape retaining performance of the tubular body 16a and the shape retaining performance of the bulky fiber bundle 16c improve the shape retaining performance of the filter 16 and also the durability. Therefore, the labor required for maintenance of the water absorption pipe can be simplified.

In the present embodiment, the example of applying the filter of the present invention instead of the water suction pipe on the slope was described. However, in the case of applying the filter of the present invention instead of the underdrain pipe for golf, playground or the like. Also, the same effect as this embodiment can be obtained.

<< Third Embodiment >> A third embodiment of the present invention will be described with reference to the drawings. FIG. 13 is a diagram showing an embodiment of the filter of the present invention.

The figure shows a cross-sectional view of a purifying device used in a pool, a bathtub or the like. This purifying device has a substrate unit 1
A housing 18 is detachably attached to 7. On the upper surface of the base plate portion 17, a cylindrical convex portion 21 is provided so as to have an outer diameter equal to the inner diameter of the housing 18. The outer wall of the convex portion and the inner wall of the housing 18 corresponding thereto are provided with screw grooves, respectively, and these are screwed so as to be detachable. Further, a columnar recess 21 is provided at the center of the protrusion 21. At the center of the bottom surface of the recess 21, the water discharge hole 20 penetrating to the lower surface of the substrate 21 is formed.
Is provided.

Further, at the position offset from the center of the convex portion 21, the water inlet hole 19 penetrating from the upper surface to the lower surface is formed.
Are provided (see FIG. 14). In the present embodiment, the cylindrical filter 21 is fitted in the recess 21 of the substrate portion 17. The filter 21 is molded by the same method as the filter 100 described in the first embodiment, and the description thereof will be omitted.

Here, the filter 21 in the present embodiment.
An example will be described. <Example> In the present example, homopropylene having a melting index (MI) of about 2 and a density of 0.901 and polyethylene having a melting index (MI) of 30 and a density of 0.950. Are laminated by the film forming machine 5,
The laminated film 11 is formed. At this time, the film forming machine 5 forms the homopropylene sheet to a thickness of 40 μm and the polyethylene sheet to a thickness of 20 μm. Therefore, the laminated film 11 has a thickness of 40 μm.
A film having a thickness of 80 μm is obtained by laminating a polyethylene sheet having a thickness of 20 μm on both sides of the homopropylene sheet.

Next, the stretching device 6 draws the laminated film 11 sent from the film forming machine 5 by the nip roller on the input side and orients it to the nip roller on the output side. Then, the stretching device 6 stretches the laminated film 11 by 7 times while heating the laminated film 11 at a low temperature of about 115 degrees Celsius between the input side nip roller and the output side nip roller.

The defibrating device 7 draws the laminated film 11 extruded by the output side nip roller of the stretching device 6 while pressing it against the defibrating member, and defibrates the laminated film 11 into a fibrous state to produce a fibrous resin 12. To do. The defibration degree of the fibrous resin 12 is doubled.

The heating furnace 8 applies hot air of 140 degrees Celsius to the fibrous resin 12 extruded from the defibrating device 7 to shrink the fibrous resin 12 so that the fibrous resin 12 is reciprocated. The mesh fibers 13 are formed by interlacing.

The heating jig 9 allows the reticulated fibers 13 to pass through the iron pipe heated to 150 degrees Celsius to fuse the fiber group 1b on the surface portion. The inner diameter of this iron pipe is 5mmφ
And

The cooling device 10 applies cold air having the same temperature as room temperature to the reticulated fibers 13 oriented from the heating jig 9 to solidify the fiber group 1b on the surface, and the filter 21
To produce a bulky fiber bundle.

The strength and elongation and bulkiness of the filter 21 manufactured according to the above manufacturing conditions are as follows. (1) Strength and elongation Fineness: 40,000 d Strength: 14.5 kg Strength: 0.36 g / d Elongation: 10% at maximum strength, 21% at break Heat shrinkage: 0% (heating at 100 degrees Celsius for 10 minutes (2) Bulk Height Bulk Specific Gravity: 0.057 g / cc Next, a performance test was performed on the cartridge filter in which the filter 21 was wound. This test was performed according to the following conditions. Insert the winded filter 21 into a pipe with an outer diameter of 60 mmφ (inner diameter 55 mmφ) and a mesh-like peripheral wall (both ends are open) Insert purified water with a flow rate of 15 L / min from one end of the pipe Before inserting Dust mixed with JIS 7 and 8 at 0.4 g / min was added to the purified water of 1. The purified water flowing out from the mesh opening of the pipe or the opening at the other end was filtered by a circulation filtration method. Then, the dust content (g) is measured. The collection efficiency of the filter 21 is calculated from the dust content (g) and the addition amount. The discharge diameter of the purified water flowing out from the mesh-like opening is measured. The time until the water pressure (kg / cm ² ) of the purified water flowing out from the circular opening reaches 1.0 (kg / cm ² ) is measured. Here, the results of the performance test conducted according to the above conditions are as follows. As shown in the table It is. As described above, when the filter 21 of the present embodiment is used, the purifying device causes the water pumped by the pump (not shown) to flow into the housing 18 through the water inlet hole 19. Then, the water that has flowed into the housing 18 passes through the filter 21 and flows out from the water outlet 20. This removes hair, sputum, etc. scattered in the water. Further, due to the adsorptive property of polypropylene, it is possible to remove oil and the like scattered in water.

Therefore, according to this embodiment, the bulky fiber bundle, which is cheaper than the conventional filter, can be used as the filter, and the cost for maintaining the pool or the bath can be reduced.

<Fourth Embodiment> A fourth embodiment of the present invention will be described with reference to the drawings. FIG. 15 is a diagram showing one mode of the filter according to the present embodiment.

The drawing shows a drainage port 24 of a sink 23 for home use.
Shows an example of a filter applied to. The filter 25 is used instead of the strainer. FIG. 16 is a perspective view of the filter 25 of this embodiment.

The filter 25 is composed of a tubular body 25a and a bulky fiber bundle 25b fitted in the tubular body 25a. The tubular body 25a forms a bottomed cylindrical body whose side wall and bottom surface are formed in a grid pattern. Furthermore, the cylinder 25
The outer diameter of a is formed to have substantially the same shape as the inner diameter of the water distribution pipe 27 attached to the lower surface of the drainage port 24. A flange 26 having a diameter larger than the outer diameter of the tubular body 25a is provided at the upper edge of the tubular body 25a. Correspondingly, the peripheral edge of the drainage port 24 is formed as a recess having a diameter slightly larger than the outer diameter of the flange 26. When the filter 25 is used, the lower surface of the flange 26 is engaged with the recess to position the filter 25.

The bulky fiber bundle 25b is formed by a method similar to that of the filter 100 described in the first embodiment 1, and detailed description thereof will be omitted. The bulky fiber bundle 25b has an outer diameter slightly larger than the inner diameter of the tubular body 25a. Therefore, at the time of fitting, the bulky fiber bundle 25b
The shrinkage property of is used to press fit into the tubular body 25a. Furthermore, the height of the bulky fiber bundle 25b is equal to that of the tubular body 25.
It is lower than a, and the bulky fiber bundle 25b when fitted
It is pressed into the bottom surface of the cylindrical body 25a until the lower end of the bottom surface contacts the bottom surface.

(Operation / Effect of Fourth Embodiment) According to the filter 25 of the present embodiment, it is possible to collect fine debris, hair, thread waste, etc. which cannot be collected by the conventional strainer. It is possible to prevent clogging of the water pipe.
Furthermore, according to the filter 25 of the present embodiment, it is possible to adsorb oil, edible oil, and food oil discharged when washing tableware and cooking utensils. As a result, it is possible to prevent oil and the like from adhering to the inner wall of the water distribution pipe, improve the durability of the water distribution pipe, and save the labor for cleaning the water distribution pipe.

In the present embodiment, the domestic drainage port has been described as an example, but the filter of the present invention is set in the drainage port of a factory or the like to remove rust and the like contained in the drainage. May be.

<Fifth Embodiment> A fifth embodiment of the present invention will be described with reference to the drawings. FIG. 17 is a diagram showing an implementation of the filter according to the present embodiment.

The figure shows a filter 28 applied to a bath without a purifying device. This filter 28
Is a sheet formed by weaving a plurality of bulky fiber bundles (see FIG. 18). This bulky fiber bundle is formed by a method similar to that of the filter 100 described in the first embodiment, and a description thereof will be omitted.

The outer diameter of the filter 28 is substantially the same as the inner diameter of the bath 29. (Operation and Effect of Fifth Embodiment) The filter 28 of the present embodiment floats on the surface of the bath after filling the bath 29 with hot water. As a result, it is possible to adsorb the hair, dirt, or oil floating on the surface of the molten metal. Further, due to the heat retaining property of the bulky fiber bundle, it is possible to have both the function of the filter and the function of the lid of the bath.

Therefore, according to the present embodiment, it is not necessary to attach an expensive purifying device to the bathtub, and it is possible to prolong the exchange period of hot water (or water) in the bathtub and to improve water saving. Can be done.

<< Sixth Embodiment >> A sixth embodiment of the present invention will be described with reference to the drawings. FIG. 19 shows an example in which the filter of the present invention is buried in the ground of a golf course.

The filter 30 of the present embodiment is a filter formed by weaving a bulky fiber bundle into a sheet, as in the case of the fifth embodiment. When making a golf course,
The filter 30 is laminated on the formation 32 having excellent water permeability. Further, a lawn 31 is laminated on the filter 30.

(Operation / Effect of Sixth Embodiment) According to the filter 30 of the present embodiment, the soil of the lawn 31 is adsorbed and only the moisture is transmitted to the underlying stratum in the case of water sprinkling or rainfall. . Furthermore, the cushioning property of the bulky fiber bundle can reduce the impact on the foot of the golf course user.

<< Seventh Embodiment >> A seventh embodiment of the present invention will be described with reference to the drawings. FIG. 20 shows an example in which the filter of the present invention is applied to a teapot.

The filter 33 of this embodiment has a cylindrical shape and is formed so that its outer diameter is substantially the same as the inner diameter of the spout 35 of the teapot 34. On the other hand, a stopper 36 protruding in the circumferential direction is provided on the wall surface inside the spout 35.

(Operation / Effect of Seventh Embodiment) Teapot 34
When using the filter 33, the filter 33 is inserted into the spout 35 from within the teapot 34. At this time, the filter 33 is inserted until the tip of the filter 33 contacts the stopper 36.

When the teapot and hot water are filled in the teapot 34 and the tea is poured, the filter 33 allows the hot water to permeate while preventing the passage of the tea leaves. Further, the filter 33 can adsorb fine substances such as leaf meal, between the fibers.

When the filter 33 becomes dirty,
This filter 33 may be pulled out from the spout 35 and replaced with a new filter. Therefore, according to the filter 33 of the present embodiment, the teapot can be easily washed.

<< Eighth Embodiment >> An eighth embodiment of the present invention will be described with reference to the drawings. FIG. 21 shows an example in which the filter of the present invention is applied to an air purifier.

In the air purifier of this embodiment, one surface of the box-shaped casing 38 having a hollow inside and the surface facing this surface are open. And, on one opening surface,
A fan 38c for forcibly inflowing air is attached, and a detachable cover 38b is provided on the other surface (air discharge portion 38a).

A stopper 38d protruding inward is provided on the inner wall of the housing 38 at the portion where the cover 38b is attached. The filter 37 is configured by connecting the filters 100 described in the first embodiment in parallel, and has a substantially rectangular shape.

The procedure for fitting the filter 37 is to remove the cover 38b from the housing 38 once,
The cover 38b is attached again so as to be sandwiched between the stopper 38d of the housing 38 and the cover 38b.

Here, the filter 37 in this embodiment is used.
An example will be described. <Example> In the present example, homopropylene having a melting index (MI) of about 2 and a density of 0.901 and polyethylene having a melting index (MI) of 30 and a density of 0.950. Are laminated by the film forming machine 5,
The laminated film 11 is formed. At this time, the film forming machine 5 forms the homopropylene sheet to a thickness of 40 μm and the polyethylene sheet to a thickness of 20 μm. Therefore, the laminated film 11 has a thickness of 40 μm.
A film having a thickness of 80 μm is obtained by laminating a polyethylene sheet having a thickness of 20 μm on both sides of the homopropylene sheet.

Next, the stretching device 6 draws the laminated film 11 delivered from the film forming machine 5 by the nip roller on the input side and orients it to the nip roller on the output side. Then, the stretching device 6 stretches the laminated film 11 by 7 times while heating the laminated film 11 at a low temperature of about 115 degrees Celsius between the input side nip roller and the output side nip roller.

The defibrating device 7 draws the laminated film 11 extruded by the nip roller on the output side of the stretching device 6 while pressing it against the defibrating member to defibrate the laminated film 11 into a fibrous state to produce a fibrous resin 12. To do. The defibration degree of the fibrous resin 12 is doubled.

The heating furnace 8 applies a hot air of 140 degrees Celsius to the fibrous resin 12 extruded from the defibrating device 7 to shrink the fibrous resin 12 so that the fibrous resin 12 is mutually discharged. The mesh fibers 13 are formed by interlacing.

The heating jig 9 allows the reticulated fiber 13 to pass through the iron pipe heated to 150 degrees Celsius to fuse the fiber group 1b on the surface portion. The inner diameter of this iron pipe is 13 mm
φ

The cooling device 10 applies the cold air having the same temperature as the room temperature to the reticulated fibers 13 oriented from the heating jig 9 to solidify the fiber group 1b on the surface and to form a bulky fiber bundle as a filter. To generate.

The strength and elongation and bulkiness of the filter 21 manufactured according to the above manufacturing conditions are as follows. (1) Strength and elongation Fineness: 80,000 d Strength: 30 kg Strength: 0.38 g / d Elongation: 12% at maximum strength, 23% at break Heat shrinkage: 0% (heating at 100 degrees Celsius for 10 minutes) ( 2) Bulk altitude Bulk specific gravity: 0.072 g / cc Next, using the above filter 21, the pressure loss property and the collection property were measured. This measurement was performed according to the following procedure. (1) Pressure loss property A filter 21 is set in the middle of the flow path of air so as to close the flow path. Sensors for measuring the air pressure of the air are installed before and after the filter 21 in the flow path. 0.1m / sec air and wind speed 1.0
Generate air of m / sec Measure the wind pressure of the air just before flowing into the filter 21 Measure the wind pressure of the air flowing out from the filter 21 Calculate the pressure difference between the wind pressure just before the inflow and the wind pressure after the outflow (2) A filter 21 is set in the middle of the flow path of the collective air so as to close the flow path. An aerosol generator (evaporative condenser using 1% NaCl aqueous solution as a reagent) is installed upstream of the filter 21. Install a particle counter in the flow path. Air with a wind speed of 0.1 m / sec and a wind speed of 1.0
m / sec air is generated 0.3-0.5μ aerosol is generated from the aerosol generator A particle counter installed in front of the filter 21 installs aerosol of air flowing into the filter 21 behind the counting filter 21. The aerosol of the air flowing out from the filter 21 is counted by the particle counter described above. 1- (rear particle counter value) / (previous particle counter value) is calculated. Here, the measurement performed according to the procedure (1) above. The following table shows the results and the results measured according to the procedure (2) above.

[Table 3] Thus, the filter of the present invention can be used as an air filter.

In addition to the above embodiments, the filter of the present invention can be used for feminine sanitary products, cigarettes and the like.

[0104]

According to the present invention, a filter having high oil absorption and high water permeability can be provided at low cost. By installing this filter around the device, it is possible to absorb oil leaking from the device and save the labor for cleaning the floor surface.

Further, by mounting the filter of the present invention on a water absorption pipe, a water distribution pipe, an underdrain pipe, or the like, a water absorption pipe,
It is possible to improve the shape retention of the water distribution pipe or the underdrain pipe, prevent clogging, and reduce the labor and cost required for maintenance.

Furthermore, by using the filter of the present invention as a cartridge filter of a pool or bath cleaning apparatus, the filter can be manufactured at low cost and the economic burden on the user can be reduced. Even in the case of a bathtub without a purification device, hair, dirt, or oil can be adsorbed just by floating on the surface of the bath. In this case, the bulky fiber bundle can be used also as the lid of the bath due to the heat retaining property of the bulky fiber bundle, which is also advantageous in that it is not bulky.

Further, by fitting the filter of the present invention to the strainer of the drainage port, it is possible to prevent dust and oil from entering the drainage pipe, reduce the time and labor required for cleaning the drainage pipe, and It becomes possible to improve durability.

Furthermore, by embedding a sheet-shaped filter in the ground of a golf course, a sports field, etc., it is possible to allow only rainwater to permeate to the underlying layer and to be used as a cushioning material.

By fitting the filter of the present invention into the spout of the teapot, tea leaves can be adsorbed,
Eliminates the hassle of washing as with conventional tea strainers.

[Brief description of drawings]

FIG. 1 is a diagram (1) showing an embodiment using the filter of the first embodiment.

FIG. 2 is a diagram (2) showing an embodiment using the filter of the second embodiment.

FIG. 3 is a vertical sectional view of a bulky fiber bundle.

FIG. 4 is a horizontal sectional view of the bulky fiber bundle.

FIG. 5 is a cross-sectional view of a laminated film

FIG. 6 is a sectional view of a fibrous resin.

FIG. 7 is a cross-sectional view of reticulated fibers.

FIG. 8 is a view showing an apparatus for manufacturing a bulky fiber bundle.

FIG. 9 is a diagram (1) showing another embodiment of the filter of the first embodiment.

FIG. 10 is a diagram (2) showing another mode of the filter according to the first embodiment.

FIG. 11 is a diagram showing an embodiment of the filter of the second embodiment.

FIG. 12 is a perspective view of a filter.

FIG. 13 is a diagram showing an embodiment of the filter of the third embodiment.

FIG. 14 is a cross-sectional view of a substrate unit 17.

FIG. 15 is a diagram showing one mode of a filter according to a fourth embodiment.

FIG. 16 is a perspective view of a strainer

FIG. 17 is a diagram showing one mode of a filter according to a fifth embodiment.

FIG. 18 is an enlarged plan view of the filter according to the fifth embodiment.

FIG. 19 is a diagram showing an embodiment of a filter according to the sixth embodiment.

FIG. 20 is a diagram showing one mode of a filter according to a seventh embodiment.

FIG. 21 is a view showing one mode of the filter according to the eighth embodiment.

[Explanation of symbols]

 1 ・ ・ Oil fence 100 ・ ・ Filter (bulk fiber bundle) 100a ・ ・ Fiber group 100b ・ ・ Fiber group 2 ・ ・ Device 5 ・ ・ Layered film forming machine 6 ・ ・ Stretching device 7 ・ ・ Fibration device 8 ・ ・Heating furnace 9 ... Heating jig 11 ... Laminated film 12 ... Fibrous resin 13 ... Netting fiber 14 ... Winding device 15 ... Slope 16 ... Filter 16a ... Cylindrical body 16b ... Through hole 16c・ ・ Bulk fiber bundle 17 ・ ・ Substrate 18 ・ ・ Housing 19 ・ ・ Water inlet 20 ・ ・ Water outlet 21 ・ ・ Concave 22 ・ ・ Convex 23 ・ ・ Sink 24 ・ ・ Drainage 25 ・ ・ Filter 25a ・ ・Cylindrical body 25b · Bulky fiber bundle 26 · · Flange 27 · · Water distribution pipe 28 · · Filter 29 · · Bathtub 30 · · Filter 31 · · Lawn 33 · · Filter 34 · · Teapot 35 · · Spout 36 · · Stopper 37 ... Filter 38 · housing 38a ... air outlet 38b ... Cover 38c ... fan 38d ... stopper

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location C02F 1/28 D04H 13/02 B01D 23/02 Z D04H 13/02 29/10 510E // B29L 31 : 14 510G

Claims (17)

[Claims] 1. A reticulated fiber is produced by applying hot air to a fibrous resin obtained by defibrating a film in which a plurality of resins having different melting points are laminated to shrink each fibrous resin and entangle the fibrous resins. The filter is characterized in that the reticulated fibers are passed through or retained in a heated cylinder to fuse the fibers on the surface to impart shape retention. 2. The filter according to claim 1, wherein the film-shaped resin is a laminate in which polyethylene is attached to at least one surface of sheet-shaped polypropylene. 3. The filter is arranged so as to surround the device on a floor surface where a device for leaking oil is installed.
The method of using the filter according to claim 1, wherein oil leaked from the device is adsorbed. 4. The method of using a filter according to claim 1, wherein the filter is fitted in a purifying device for removing foreign matter in water or hot water. 5. The method of using a filter according to claim 1, wherein the filter is fitted in a spout of a teapot. 6. The method of using a filter according to claim 1, wherein the filter is fitted in an air filter for removing dust in the air. 7. A fibrous resin obtained by defibrating a film in which a plurality of resins having different melting points are laminated is blown with hot air to shrink each fibrous resin and to entangle the fibrous resins with each other, followed by heating. A bulky fiber converging body that is passed through or stays in the cylindrical body and is fused between the fibers on the surface to impart shape-retaining properties, and a cylindrical body having an inner diameter equal to or less than the outer diameter of the bulky fiber converging body, A filter, wherein the bulky fiber bundle is fitted in a cylinder. 8. The filter according to claim 7, wherein a plurality of through holes are provided in the peripheral wall of the cylindrical body. 9. The filter according to claim 8, wherein the cylindrical body is an underdrain pipe that is buried underground and absorbs moisture in the ground. 10. The pipe is a water-absorbing pipe that is buried horizontally from the slope of a mountain to the ground and absorbs moisture in the ground to flow out from the slope. Filters. 11. The cylinder according to claim 7, wherein one end of the cylinder is connected to a drainage port for discharging drainage, and the other end of the cylinder has a bottom having a through hole. filter. 12. A fibrous resin obtained by defibrating a film in which a plurality of resins having different melting points are laminated is blown with hot air to shrink each fibrous resin and entangle the fibrous resins to produce a reticulated fiber. Then, the reticulated fibers are passed through or retained in a heated cylinder to produce a bulky fiber bundle that is fused between the fibers on the surface, and the bulky fiber bundle is woven or knitted in a lattice pattern. A filter characterized by being made into a sheet. 13. The method of using a filter according to claim 12, wherein the sheet-like filter is attached to a device that leaks oil, and the oil that leaks from the device is adsorbed. 14. The method of using a filter according to claim 12, wherein the sheet-like filter is embedded horizontally in the ground. 15. The method of using a filter according to claim 14, wherein the sheet-shaped filter is embedded in the ground of a playground. 16. The method of using a filter according to claim 14, wherein the sheet-shaped filter is embedded in the ground of a golf course. 17. The use of the filter according to claim 12, wherein the outer diameter of the sheet-shaped filter is formed to be equal to or smaller than the inner diameter of the bathtub, and the sheet-shaped filter is floated on the molten metal surface in the bathtub. Method.