JP2011183329A - Filter medium and method for manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a filter medium manufactured particularly from bamboo as a main raw material and suitable for filtering an edible oil and a method for manufacturing the filter medium. <P>SOLUTION: The filter medium is made of bamboo filter paper produced from bamboo pulp as a main raw material and a bamboo paper layer is obtained by beating finely split bamboo and separating bamboo fibers, steaming the bamboo fibers to make the bamboo fibers soft and further beating the bamboo fibers to obtain a white liquor, and suspending the white liquor in paper-manufacturing container and carrying out handmade paper-manufacturing process. The bamboo paper layer is dewatered and dried to obtain the bamboo filter paper. Bamboo charcoal or natural apatite may be added to the bamboo filter paper. The bamboo filter paper is used in form of sheet-like bamboo filter paper, spherical bamboo filter paper, or rolled bamboo filter paper. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

      The present invention relates to a filter medium, particularly a filter medium made mainly of bamboo and suitable for filtering edible oil, and a method for producing the same.

Conventional filter materials for edible oil include filter papers made mainly of natural fibers such as wood pulp and cotton, or synthetic fibers such as polypropylene and polyethylene.
However, the above conventional filter paper is not only high in cost, but also has problems such as an antibacterial effect, a deodorizing effect, a negative ion effect, and a pollutant adsorption effect.
On the other hand, there are bamboo Japanese papers that use bamboo as the main material, but there is no filter material for edible oil focusing on the antibacterial effect, deodorant effect, negative ion effect, and pollutant adsorption effect of bamboo.

Japanese Patent Laid-Open No. 2002-45620 Japanese Patent Laid-Open No. 6-269607 Japanese Patent Laid-Open No. 5-239791 Japanese Patent Laid-Open No. 5-321190

An object of the present invention is to provide a filter medium that is inexpensive and can exhibit various effects such as an antibacterial effect, a deodorizing effect, a negative ion effect, and a pollutant adsorption effect, and a method for producing the same.

The filter medium of the present invention is made of bamboo filter paper made mainly from bamboo pulp. It also contains natural apatite. Furthermore, the natural apatite is obtained by firing animal bones such as beef bones into fine particles or fine powders. It is also characterized by being a spherical bamboo filter paper. Furthermore, it is also characterized by being a rolled bamboo filter paper.

The method for producing a filtering material of the present invention is to break a bamboo from which branches, leaves and nodes have been finely broken, beat it with a hammer or the like to break apart the bamboo fiber into pieces, and use the broken bamboo fiber in a boiling pot such as a drum can. Bamboo fiber softened by adding and boiled, beaten the softened bamboo fiber further to make a paper solution like wet cotton, and if necessary, add a sticky agent such as troro mallow. The bamboo paper layer is formed by hand-working, the bamboo paper layer is stacked on the paper floor, the bamboo paper layer is squeezed and dehydrated, peeled off one by one, and then dried in the sun or dryer, It is characterized by manufacturing. Moreover, natural apatite is mixed in the bamboo fiber.

The filter medium of the present invention can exhibit various effects such as an antibacterial effect, a deodorizing effect, a negative ion effect, and a pollutant adsorption effect. Moreover, the manufacturing method of the filter medium of this invention can provide an inexpensive filter medium.

It is explanatory drawing of the manufacturing method of the filter medium of this invention. It is a figure which shows one Example of the filter medium of this invention. It is a figure which shows another Example of the filter medium of this invention. It is a figure which shows another Example of the filter medium of this invention.

Embodiments of the filter medium and the manufacturing method thereof according to the present invention will be described below with reference to the drawings.

As shown in FIG. 1, first, branches and leaves are removed from the harvested bamboo (such as Sosetsu bamboo) and then finely divided. This removal of branches and leaves can be omitted.

Next, the finely divided bamboo is beaten with a hammer or the like, and the bamboo fibers are broken apart.

Dissolved bamboo fiber is put into a boiling pot such as a drum can and boiled and softened.

Subsequently, the softened bamboo fiber is further applied. If necessary, a sticky agent such as trolley mallow may be added to the stock solution.

Suspend the above-mentioned stock solution in a water-filled boat, rescue the stock solution with a spear, and swing the spear back and forth and left and right with a spear, and repeat this rocking several times to make it even. Spread it out and do handwork to form a bamboo paper layer with fibers intertwined. The above-described sowing operation is referred to as a so-called pouring method, but it may be a so-called pooling method in which, after scooping up the stock liquid, the coffin is slightly shaken and stopped until the water runs out.

The bamboo paper layers are stacked on a paper floor, the bamboo paper layers are squeezed and dehydrated, peeled off one by one, and dried in the sun or a drier to obtain bamboo filter paper.

Bamboo charcoal containing bamboo charcoal may be produced by adding bamboo charcoal that has been crushed into powder to the bamboo fiber and performing a hand-working operation. In this case, the bamboo filter paper has countless fine pores of about 10 and several microns, and bad edible oil can be filtered.

In addition, a bamboo filter paper containing natural apatite may be produced by mixing natural apatite with the bamboo fiber and carrying out a manual operation. The natural apatite is prepared by, for example, boiling beef bones at a high temperature (about 200 to 400 ° C.) for about 90 minutes and then baking at 1100 ° C. for about 90 minutes. It is a material that has been extinguished and completely mineralized, and is pulverized to about 1 to 10 mm to have a natural apatite granular shape. Further, it is a natural apatite powder that has been finely pulverized to about 1 to 40 microns using a pulverizer. The natural apatite may be added to the bamboo fiber containing bamboo charcoal.

As shown in FIG. 2, the bamboo filter paper has a thickness of 0.2 to 20 mm, and is formed as a sheet-like bamboo filter paper that matches the shape and size of the filtration tank of a filtration device such as a fryer. If it is thin, a plurality of sheets may be used.

Further, as shown in FIG. 3, the bamboo filter paper is formed as a sphere-shaped bamboo filter paper having a diameter of about 5 to 50 mm (including a shape close to a sphere) and filling the filter cartridge of the filter device. By mixing and filling spherical bamboo filter papers having different diameters, it is possible to increase the packing density by inserting small diameter filter papers into the gaps between the large diameter filter papers.

Further, as shown in FIG. 4, the bamboo filter paper is formed as a roll-shaped bamboo filter paper having a diameter of about 5 mm or more and a height of about 5 mm or more and filling the filter cartridge of the filtration device. By mixing and filling roll-shaped bamboo filter papers having different diameters and heights, it is possible to increase the packing density by inserting filter papers having a small diameter and height into the gaps between the filter papers having a large diameter and height. Alternatively, one roll-shaped bamboo filter paper in which the diameter of the roll-shaped bamboo filter paper is adjusted to the inner diameter of the cartridge and the height is adjusted to the height of the cartridge may be filled.

  In the above embodiment, natural apatite is mixed in the filter paper. For example, in the case of a plurality of stacked filter papers or between rolled bamboo filter papers, a powder layer of natural apatite is used. May be inserted.

Claims (7)

A filter medium comprising a bamboo filter paper made mainly from bamboo pulp.   The filter medium according to claim 1, comprising natural apatite.   3. The filter medium according to claim 2, wherein the natural apatite is obtained by firing animal bones such as cow bones into fine particles or fine powders.    4. The filter medium according to claim 1, 2, or 3, wherein the filter medium is a spherical bamboo filter paper.    The filter medium according to claim 1, 2 or 3, which is a rolled bamboo filter paper.     Break the bamboo with the leaves and nodes removed into pieces, beat it with a hammer, etc., break up the bamboo fiber into pieces, put the separated bamboo fiber into a boiling pot such as a drum can, boil and soften, soften Bamboo fiber that has been further beaten to make a wet cotton-like stock solution, if necessary, adding a sticky agent such as troolloi, forming a bamboo paper layer by handworking the stock solution, A filter medium characterized in that the bamboo paper layer is stacked on a paper floor, the bamboo paper layer is squeezed and dehydrated, peeled off one by one, and then dried in the sun or a dryer to produce bamboo filter paper Manufacturing method.     The method for producing a filter medium according to claim 6, wherein natural apatite is mixed into the bamboo fiber.