JP3113227U - Charcoal built-in mat - Google Patents

Abstract

【Task】
The object of the present invention is to improve oil absorption by using charcoal that is readily available in combination with organic fibers.
[Solution]
A mat with built-in charcoal characterized by incorporating charcoal inside a mat made of organic fibers, and the mat is a mat with built-in charcoal characterized by a structure composed of a plurality of nonwoven fabrics and knitted fabrics.
The weight ratio of charcoal is preferably 5 to 80% of the total weight. Moreover, as charcoal, it is preferable that it is a carbide | carbonized_material of a thinning material and a building waste material.
[Selection] Figure 1

Description

  The present invention relates to a mat with a built-in charcoal, and more particularly to a mat with a built-in charcoal characterized in that charcoal is built in to improve oil absorption.

  Since petroleum is a liquid, it has advantages such as being easy to mine and generating less carbon dioxide when compared to coal, and is widely used as a power source and a raw material for the chemical industry. However, as a drawback based on being a liquid, there is a drawback that if it leaks out due to an accident such as the sinking of a ship, it is easy to diffuse and removal of contamination is not easy. As a method for removing the contaminated oil that causes such marine pollution, a method of scrubbing using a shark or the like is performed, but there is a drawback that requires a lot of manpower.

In addition, there is a method of spraying a surfactant in a place where contaminated oil is present, but this method does not remove the oil but diffuses it widely, not a fundamental solution. On the contrary, there is a concern of contamination with surfactants.

A lipophilic fiber such as polypropylene has a property of absorbing oil, and a method of using it as an oil absorbing mat is disclosed.
For example, there is known a mat-like oil collecting material that is a self-bonded fibrous structure made of polypropylene fibers, and is laminated with a large number of long sheets of polypropylene fibers arranged in a longitudinal direction, and is laminated in a pressure-bonded manner. (Patent Document 1).

JP-A-5-212380

However, the method using polypropylene fiber is not suitable for collecting fine oil droplets because it uses the lipophilicity of polypropylene fiber. In many cases, oil is collected while containing water. However, improvement is still required.

The object of the present invention is to improve oil absorption by using easily available charcoal in combination with organic fibers.

As a result of earnest research on oil absorption,
It was found that the oil absorption is remarkably improved by incorporating charcoal that can be easily obtained as thinned wood, construction waste, etc. into the mat.

That is, the present invention
(1) Charcoal built-in mat characterized by incorporating charcoal inside a mat made of organic fibers;
(2) (1) In the built-in charcoal mat in which charcoal is built, the mat constituting the charcoal built-in mat is a structure composed of a plurality of nonwoven fabrics and knitted fabrics.
(3) In (1) and (2), the weight ratio of charcoal is 5 to 80% of the total weight,
(4) In (1) and (2), charcoal is charcoal of thinned wood and building waste,
(5) In (1) and (2), the organic fiber is cotton, cellulose acetate fiber, polyamide fiber, polyester fiber, acrylic fiber, or polyolefin fiber.
(6) In (1) and (2), in addition to charcoal, weighs and foamed plastics are incorporated.
(7) (1) to (6) A connected wood built-in mat in which a plurality of charcoal built-in mats are connected.

The charcoal referred to in the present invention is so-called charcoal obtained by drying wood, heating it in an oxygen-deficient state, volatilizing volatile components, and cooling it. Charcoal can be a useful application of building waste and thinned wood if the building waste and thinned wood are produced as charcoal. The charcoal is preferably a small piece.
Examples of the small piece include a cylinder or a rectangular parallelepiped having a size of a bottom side or a diameter of 0.1 to 5 mm and a height of 0.1 to 30 mm. The charcoal of the present invention is charcoal that has been widely known. The small piece of charcoal used in the present invention may cut charcoal or may use charcoal scrap generated during handling. It should be noted that a powder such as activated carbon is not preferable as it is, because it is easily dissipated by wind or the like, and even if it is stored in a bag, it is easily removed from the bag.

In the present invention, usable organic fibers include cotton, cellulose acetate fiber, acrylic fiber, polyamide fiber, polyester fiber, and polypropylene fiber. This is because these fibers can be easily obtained. The thickness of these fibers is preferably in the range of 1 to 20 denier. This is because the thickness within this range is easily available as a fiber for clothing or as a fiber for carpets and other rugs. In addition, when using highly hydrophilic fibers such as cotton, it is preferable to increase the lipophilicity by using a silicone water repellent.

In the present invention, the organic fiber used is used as a mat. The mat means a relatively thick nonwoven fabric or knitted fabric. And since the mat used by this invention needs to incorporate charcoal, it is preferable that it is the structure which made the mat | matte the end of several knitted fabrics and nonwoven fabrics. Examples of the non-woven fabric include a non-woven fabric in which organic fibers are entangled with each other by needle punching and then bonded with an adhesive. Examples of the web used here include a card web having fiber orientation and a random web having no fiber orientation. A knitted fabric is obtained by weaving or knitting a spun yarn or filament made of organic fibers.

  In the present invention, as a method of incorporating the charcoal mat inside, there is also a method of incorporating it into the structure of the nonwoven fabric or the knitted fabric, but since it is difficult to manufacture, a plurality of nonwoven fabrics, the knitted fabric are sewn together. It is preferable to perform the bonding by forming a bag and placing it in the bag, and further incorporating the bag in a mat. The reason why the mat constituting the charcoal built-in mat is made up of a plurality of non-woven fabrics and knitted fabrics is necessary to further incorporate a bag containing charcoal.

In the present invention, the amount of charcoal incorporated is preferably 5 to 80% of the total weight. This is because if it is less than 5%, the effect of adding charcoal is small, and if it is more than 80%, oil absorption by the organic fibers is small.

In the present invention, when a charcoal-incorporated mat with charcoal is used, the following reasons can be given as the reason why the contaminated oil can be effectively removed.
It is considered that the contaminated oil contains a polar organic compound that favors emulsification and dispersion of the contaminated oil. In order to remove such a polar organic compound, it is considered that the contaminated oil becomes large particles and is easily adsorbed by the organic fibers constituting the mat. The adsorbing mat of the present invention adsorbs oil preferentially, not including water.

In addition, the reason why charcoal enables effective removal of contaminated oil can be considered that charcoal has fine holes, and fine polluted oil particles are adsorbed in the holes.

In the present invention, in addition to the built-in charcoal, in order to adjust the specific gravity, foamed plastics having closed cells or a heavy stone such as a stone can be added. By such a method, it can be floated on water or can be submerged in water.
Further, foamed plastics can be added to one end of the adsorption mat, and heavy stones such as stones can be added to the other end.

As a size of the mat with built-in charcoal of the present invention, a length of 10 to 80 cm on one side is preferable. This is because if it is larger than 80 centimeters, handling becomes difficult, and if it is smaller than 10 centimeters, installation becomes difficult.

The charcoal built-in mat of the present invention can be used by being connected with a connecting material using a string, a knitted fabric, a woven fabric or the like. The connecting material can be easily cut using scissors, a sickle or the like, or can be connected again using a connecting string such as a string.

Carpet, cotton from work gloves: two needle punched non-woven fabrics with a thickness of 4.5 mm, width 55 cm x length 55 cm using recycled fiber consisting of 50% by weight and acrylic fiber / polyester fiber 50% by weight A sheet is prepared and used as the mat 2. Separately, a bag 3 for storing charcoal is prepared.

Separately, charcoal derived from thinned wood and construction waste is crushed into needles with a diameter of 2 mm and a length of 2 cm to obtain charcoal, and charcoal 1 is filled into a bag 3 having a width of 3 cm and a length of 5 cm. To do.

A bag 3 filled with charcoal is inserted into the mat 2 and stitched together to obtain a charcoal built-in mat 7 containing the charcoal 1. A cross-sectional view thereof is shown in FIG.
It was confirmed that the charcoal-containing mat 7 thus obtained is effective in absorbing contaminated oil that has flowed out to the sea. Moreover, it was recognized that it was effective in removing malodors by placing it in the air. The amount of charcoal 1 used here was 30% of the total weight.

FIG. 2 is a cross-sectional view of a charcoal-containing mat 7 in which charcoal 1 and stone 4 are built. The amount of charcoal 1 used is 10% of the total weight. Since the stone 4 with a heavy specific gravity is built in, it can be installed at the bottom of the river, which is effective for purifying the river.
FIG. 3 is a schematic diagram in which a charcoal built-in mat 7 containing charcoal 1, stone 4 and foamed plastic 5 floats on the sea. It can float on the sea as if it were floating in fishing and collect contaminated oil floating on the sea surface.
FIG. 4 is a plan view of a connected charcoal built-in mat 11 in which the charcoal built-in mat 7 is connected.
FIG. 5 is a plan view showing a state in which the connecting portion of the connecting charcoal built-in mat 11 is cut by the connecting string 9 after cutting.

As is clear from the above description, the charcoal built-in mat of the present invention has practically excellent effects as listed below.
(A) The built-in charcoal removes fine contaminated oil particles and substances that effectively emulsify and disperse contaminated oil, so effective oil absorption is possible. There is little water.
(B) Due to the effect of the built-in charcoal, it is possible to adsorb oil components dispersed in the air and components such as formaldehyde.
(C) By laying the charcoal-containing mat of the present invention underwater, contaminants such as oil in the water can be removed, which is effective for water purification.
(D) The charcoal of the present invention can be used for thinned wood and construction waste, and waste can be used effectively.

It is sectional drawing of a mat with a built-in charcoal. It is sectional drawing of the charcoal built-in mat which incorporates charcoal and a stone. Fig. 2 is a schematic view of a charcoal built-in mat containing charcoal, stone, and foamed plastic floating on the sea. It is a top view of the connection charcoal built-in mat which connected the charcoal built-in mat. It is a top view of the state connected with the connection string after cut | disconnecting the connection charcoal built-in mat.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Charcoal 2 Mat 3 Bag 4 Stone 5 Foamed plastics 6 Water surface 7 Charcoal built-in mat 8 Linking material 9 Linking string 10 Ring 11 Linked charcoal built-in mat

Claims (7)

Charcoal built-in mat, characterized in that charcoal is built inside a mat made of organic fibers. 2. The built-in charcoal mat with built-in charcoal according to claim 1, wherein the mat constituting the built-in charcoal has a structure composed of a plurality of non-woven fabrics and knitted fabrics. The charcoal-containing mat according to claim 1 or 2, wherein the weight ratio of charcoal is 5 to 80% of the total weight. The charcoal built-in mat according to claim 1 or 2, wherein the charcoal is a carbide of thinned wood or building waste. The charcoal-containing mat according to claim 1 or 2, wherein the organic fiber is cotton, cellulose acetate fiber, polyamide fiber, polyester fiber, acrylic fiber, or polyolefin fiber. The charcoal-containing mat according to claim 1 or 2, wherein, in addition to charcoal, weight stone and foamed plastics are incorporated. A connected wood built-in mat comprising a plurality of charcoal built-in mats connected together.

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