JP5261693B2 - Method for producing cereal by-product-biofiber composite regenerated molding and rice husk-molding base material for greening medium - Google Patents

Description

The present invention relates to a cereal byproduct-bio, which is obtained by pulverizing a cereal by-product and a bio-fiber material derived from animals and plants, using a pulverized molding material blended and prepared in a plurality of pulverized forms, and applying a powder molding technique. It relates to the manufacturing method of fiber composite recycle moldings. Specifically, it is used for rice husks, peanut shells, rice stalks and other cereal by-products and papers (woody fibers) including waste paper, bamboo fibers, cotton fibers, animal hair fibers and other animals and plants. Rigidity that enhances the properties of formability and easily decomposable by forming by using pulverized molding material that does not depend on crushing, which is obtained by grinding each derived biofiber material and blending it in multiple pulverized forms Cereal byproduct-bio fiber composite reclaimed molded product to be used as wood, quasi-rigid material or elastic material, and mat, block or other desired shape using rice husk as cereal byproduct It relates to a method for producing a shaping of the greening medium for chaff molding substrate such as a frame element of the medium molded article comprising.

Conventionally, the molded object which uses a grain by-product, especially rice husk as a raw material is known (for example, refer patent documents 1, 2, 3, and 4).
JP 2004-316048 A JP-T-2004-519363 JP 2002-46112 A Japanese Patent Laid-Open No. 11-42614

In addition, a vegetation medium molded body using rice husks effectively is known (see, for example, Patent Documents 5, 6, and 7).
JP 2003-52241 A Japanese translation of PCT publication No. 2003-61464 JP 2002-78416 A

  Any of the above-mentioned conventional techniques may be considered as a rice husk regeneration treatment technique, but there is room for improvement in terms of flexibility in material design according to the application.

In other words, rice husks and fibers derived from animals and plants are used as the main raw materials, and they are pulverized into an optimal form to enable the application of powder molding technology, thereby increasing the degree of freedom (flexibility) in material design according to the desired use. Is a point. However, it should be noted that the pulverized molding material according to the present invention is obtained by pulverizing the main raw material into an optimum form, and is different from the powder material obtained by extreme grinding or the like. . Here, characteristic pulverization processing techniques as described below are required.

The present inventors have proposed a defibrating apparatus (including a coarse pulverizing apparatus) that efficiently performs the process from coarse pulverization to defibration of the fiber-containing material such as waste paper. (See Patent Document 8).
Japanese Patent No. 3051981

  According to this developed technology (in-house technology), the fiber-containing material is chopped (pulverized) into a fine powder (spongy) with thorn-like projections of 1 mm or less in particle size (length if it is in the form of a piece) Therefore, a recycled material with high utility value can be obtained. Moreover, as the pulverization is further refined, it becomes a fine powder (sponge-like) with thorn-like protrusions, and the particle size can be pulverized almost uniformly to an order of one digit lower than the particle size of conventional chip foam. .

One part of the technical trend thereafter has resulted in the development of several composite recycled molded articles (see, for example, Patent Documents 9 and 10).
Japanese Patent No. 3663512 Japanese Patent No. 3622088

  In pursuing the implementation of these patented inventions, the present inventors are requested to actively design materials and molding technologies (including pulverization technology) corresponding to the expansion of applications, and actively respond to and research. Development has continued.

  As mentioned above, reclaiming rice husks and waste paper, etc., and trying to convert them into building materials, rigid boards, alternative frame materials, other rigid materials, buffer materials, greening medium molding base materials, other semi-rigid materials or elastic materials However, there is nothing to see about how the rice husks are crushed.

  Under these circumstances, cereal by-products and biofiber materials including rice husks relating to the present invention can be handled in the same manner by utilizing the pulverization technology and powder molding technology of the above-mentioned patented invention, and the prospect of new material development is pioneered. To do.

  The problem to be solved by the present invention is that a material corresponding to a desired application is made possible by applying a powder molding technique by using cereal by-products including rice husks and fibers derived from animals and plants as a main raw material and then crushing them into an optimal form. This is to increase the degree of freedom in design (flexibility). In particular, it is intended to develop a material as a rice husk forming base material for a greening medium capable of expanding the effective use range of the regenerated rice husk, for example, being installed on the rooftop.

The present invention has been made in view of such circumstances, and has been formed using a pulverized product of a grain by-product containing rice husk and animal and plant-derived biofiber material containing waste paper as a main raw material to solve the above problems. , Production method of cereal byproduct-biofiber composite regenerated molded product provided as rigid material, semi-rigid material or elastic material with enhanced moldability and easily decomposable property, and medium molded product of desired shape using rice husk as cereal byproduct The manufacturing method of the rice husk forming base material for greening culture media shape | molded so that it may become a skeleton element of this is provided.

In order to solve the problems, the first invention is a composite reclaimed molded article formed by using a pulverized molding material that does not depend on pulverization, in which a cereal by-product and a biofiber material derived from plants and animals are pulverized and blended. A cereal by-product-biofiber composite regenerated molded product provided as a rigid material, semi-rigid material or elastic material with enhanced moldability and easily decomposable property,
The pulverized product molding material is a first raw material pulverized product comprising at least one pulverized product of rice husk, peanut husk, rice stalk and other cereal by-products, paper (wood fiber) including waste paper, bamboo fiber, cotton fiber The main raw material is prepared by blending a second raw material pulverized product composed of at least one pulverized material of animal fiber and other bio-fiber materials derived from animals and plants into a main raw material, adding mist-like water, and stirring. It is made by adding wettability to the surface of the pulverized product and adding and mixing an absolutely dry natural adhesive,
The pulverized material molding material is put into a mold having a desired shape to prepare the material surface, and is formed into a composite and shaped by steam heating treatment or electromagnetic wave heating .

Moreover, 2nd invention is a cereal by-product-biofiber composite reproduction | regeneration molding of the said structure,
A rice husk forming base material for a greening medium that is shaped so as to be a skeletal element of a medium molded body having a mat shape, a block shape, or other desired shape using rice husk as a cereal by-product to be a first raw material pulverized product, ,
The rice husk coarsely pulverized product, the finely pulverized product of the sieve and the finely pulverized product of the sieve are used in combination with pulverized rice husks in different pulverization forms, and are pulverized by blending the pulverized biofiber material and the natural adhesive. Prepared material molding material , put it into the mold and prepare the material surface, and composite and mold it by holding it in atmospheric pressure overheated steam heating atmosphere or electromagnetic heating atmosphere for 100 to 200 ° C for a predetermined time It is characterized by this .

In addition, the third invention pulverizes each of the cereal by-products and the bio-fiber materials derived from animals and plants, and uses the pulverized molding material blended and prepared in a plurality of pulverized forms, and applies the powder molding technique for shaping. In the method for producing a cereal byproduct-biofiber composite regenerated molded product,
The cereal products were milled after the rough grinding process and the rough pulverization, on the sieve, fractionated under sieve, coarse ground product after the treatment, sieved finely pulverized product and under sieve finely pulverized material has multiple particle size or flake A first raw material pulverization process to obtain a cereal by-product pulverized product having a pulverized form consisting of length ;
A second raw material pulverization process that obtains a pulverized biofiber material obtained by dry-fibre-processing the biofiber material and cutting the particle size or flake length to less than 1 mm to form a cotton-like product having thorn-like projections And
70 to 95% by weight of a cereal by-product pulverized product obtained by combining at least two pulverized pulverized products of the coarsely pulverized product, the finely pulverized product under the sieve and the finely pulverized product under the sieve, and 20% by weight of the pulverized biofiber material. % To make the main raw material, add mist-like moisture to the main raw material and stir to give wettability to the surface of the pulverized product, as well as completely dry starch paste, casein, arabic gum and other natural ingredients A crushed material molding material is prepared by adding and mixing 0.5 to 15% by weight of a system adhesive, and the pulverized material molding material is placed in a mold, pressed or surface-treated without pressure, and It is characterized in that it is combined and shaped into a desired final shape by holding it in a normal-pressure superheated steam heating atmosphere at 100 to 200 ° C. or in an electromagnetic wave heating atmosphere for a predetermined time .

Furthermore, the fourth invention is the above-described method for producing a cereal byproduct-biofiber composite regenerated product, wherein rice husks are used as a cereal byproduct to be a first raw material pulverized product, and a medium having a mat shape, block shape or other desired shape is used. A method for producing a rice husk-molded base material for a greening medium that is shaped to be a skeleton element of a molded body,
Chaff and milled for after rough grinding process and coarsely pulverized, on the sieve, fractionated under sieve, coarse ground product after the treatment, sieved finely pulverized product and under sieve finely pulverized material has multiple particle size or flake length A first raw material pulverization process for obtaining a rice husk pulverized product having a pulverized form comprising:
A second raw material pulverization process that obtains a pulverized biofiber material obtained by dry-fibre-processing the biofiber material and cutting the particle size or flake length to less than 1 mm to form a cotton-like product having thorn-like projections And
70-95 wt% of rice husk pulverized material using a combination of at least two different pulverized forms of the coarsely pulverized product, finely pulverized product under sieve, and finely pulverized product under sieve, and 20% by weight of pulverized biofiber material The following are blended into the main raw material, and mist-like water is added to the main raw material to stir the surface to give wettability to the pulverized product, as well as completely dry starch paste, casein, arabic gum and other natural materials. the adhesive 0.5 to 15% by weight was added and mixed to prepare a pulverized molding material was charged with the pulverized molding material into the mold, and surface conditioning treatment with pressurized or unpressurized, and It is characterized in that it is combined and shaped into a desired final shape by holding it in a normal-pressure superheated steam heating atmosphere at 100 to 200 ° C. or in an electromagnetic wave heating atmosphere for a predetermined time .

The present invention is made from the above configuration, this was pulverized optimally form respectively a bio-fiber material from animals and plants including cereal products and waste paper containing chaff According, applicable and molding a powder molding technique sex with obtaining augmented possible optimal form of the raw material pulverized, and by selecting the blending conditions, rigid material that augment easily decomposable, to obtain a composite reproduction molded product comprising a semi-rigid material or an elastic material Can do.

  In particular, the effective utilization range of rice husks can be expanded as a greening medium rice husk forming base material that can be installed on the rooftop.

The best mode for carrying out the present invention is the method for producing a cereal byproduct-biofiber composite regenerated product of the third invention,
The raw materials such as rice husk, peanut shell, rice stalk and other cereal by-products, and paper (wood fiber) including waste paper, bamboo fiber, cotton fiber, animal fiber and other bio-fiber materials derived from animals and plants are pulverized. By using a pulverized molding material that does not depend on crushing and blended in multiple pulverized forms, it is used as a rigid, quasi-rigid or elastic material with enhanced formability and easily degradable properties. It is supposed to be.

In addition, the first raw material pulverization process involves coarsely pulverizing and coarsely pulverizing cereal by-products, separating the sieve opening index as 3 mm mesh on the sieve and under the sieve, A pulverized cereal by-product having a pulverized form in which a finely pulverized product and a finely pulverized product under a sieve have a plurality of particle sizes or flake lengths is obtained. In the fourth aspect of the invention, rice husk is used as a cereal by-product to be a first raw material pulverized product, and is shaped so as to be a skeletal element of a medium molded body having a desired shape such as a mat shape, a block shape or the like. It is.

With reference to the accompanying drawings, a method for producing a cereal byproduct-biofiber composite regenerated molded product (hereinafter referred to as Example husk-molded base material for greening medium) , which is one example of the present invention, is mainly composed of rice husk and waste paper. explain.

  FIG. 1 is an explanatory view showing a pulverization process in which rice husks, which are cereal byproducts, are pulverized into an optimal form and separated.

FIG. 2 is an explanatory view showing a shaping process of a pulverized material molding material using a mold (a) normal-pressure superheated steam heating or (b) electromagnetic wave heating.

  FIG. 3 is an explanatory view showing a rice husk-molded base material for a greening medium shaped like a block.

  Example Rice husk-molded substrate X for greening medium uses rice husk (1) as a cereal by-product to be a first raw material pulverized product, so that it becomes a skeleton element of a medium molded body having a mat shape, block shape, or other desired shape. It is made into a shape.

  As shown in FIG. 1, in the first raw material pulverization treatment, rice husk 1 is coarsely pulverized, coarsely pulverized and then finely pulverized, and separated on a sieve and under a sieve. And a rice husk pulverized product having a plurality of pulverized forms consisting of finely pulverized product 13 under the sieve. These coarsely pulverized product 11, finely pulverized product 12 on sieve, and finely pulverized product 13 below sieve are used in combination. The separation with a sieve is preferably 3 mm mesh, and the size (particle shape) of the finely pulverized product 13 under the sieve is 3 mm or less, and the size (particle shape) of the finely pulverized product 12 is allowed to be about 6 mm. In addition, a particle shape is synonymous with a particle size or flake length.

  In addition, the second raw material pulverization process is a biofiber material pulverized product (not shown, used paper defibrated cotton), which is obtained by dry defibrating waste paper and cutting the particle size or flake length to less than 1 mm to obtain a cotton-like product. The same as the product).

Preparation of the pulverized material molding material includes 70 to 95% by weight of a rice husk powder material which is a first raw material pulverized product (cereal by-product pulverized product) and a waste paper defibrated cotton which is a second raw material pulverized product (biofiber material pulverized product). 20% by weight or less of the product is used as a main raw material, and mist-like water is added to the main raw material and stirred to impart wettability to the surface of the pulverized product, as well as completely dry starch paste, casein, Adds and mixes 0.5 to 15% by weight of Arabia gum and other natural adhesives. Here, starch paste is used as the optimum natural adhesive.

  In addition, if used paper defibrated cotton or bamboo fiber is used as the second raw material pulverized product (biofiber material pulverized product) under the blending conditions, the elasticity increases with the quantity ratio, so a semi-rigid material (flexible material) Material design from elastic materials to elastic materials.

The molding conditions are steam thermoforming or electromagnetic wave thermoforming, and the pulverized product molding material having the above-described structure is pressed in the mold 2 or subjected to surface treatment without pressure, and is at a normal pressure of 100 to 200 ° C. It is combined and shaped by holding for a predetermined time in the superheated steam heating atmosphere (a) or in the electromagnetic wave heating atmosphere (b). [See FIGS. 2 and 3]

  In addition, if a shaping | molding die is comprised as a male and female split type | mold and press-molding on the same heating conditions, a hard molded object (rigid material) can also be obtained.

  The natural adhesive is considered in the case of requesting easy degradability (same as biodegradability) at the user site, like the rice husk-molded base material X for the greening medium of Example, and when there is no such request The use of PVA (polyvinyl alcohol), vinyl acetate, urethane and other synthetic adhesives is also permitted.

In the present invention, cereal by-products including rice husk as raw materials and bio-fiber materials derived from animals and plants including waste paper are each subjected to unique crushing processing using their own crushing equipment, and powder molding technology can be applied to enhance moldability In addition to obtaining a raw material pulverized material in an optimal form, it is possible to provide a composite reclaimed molded product that becomes a rigid material, semi-rigid material or elastic material with enhanced degradability by selecting the blending conditions. It is industrially beneficial in that it contributes to the effective use (recycling) of resources (waste materials). In particular, it is useful in that the range of effective use (recycling) of rice husk with a large output can be expanded.

It is explanatory drawing which shows the grinding | pulverization process which grind | pulverizes and classifies the rice husk which is a grain byproduct. It is explanatory drawing which shows the shaping | molding process by (a) normal-pressure superheated steam heating or (b) electromagnetic wave heating with a shaping | molding material for a pulverized molding material . It is explanatory drawing which shows the rice husk shaping | molding base material for greening culture media shaped in the block form.

1 Rice husk [cereal by-product; first raw material ground product]
11 Crushed rice husks [1st raw material ground]
12 Finely pulverized product on rice husk sieve [1st raw material pulverized product]
13 Finely pulverized material under rice husk [First pulverized material]
2 Mold X Rice husk mold base for greening medium [cereal by-product-biofiber composite regenerated molded product]

Claims (2)

Grain by-product and bio-fiber composite regenerative molding that uses powder molding technology to form by using pulverized molding materials prepared by blending and preparing cereal by-products and bio-fiber materials derived from animals and plants. In the manufacturing method of a thing,
Rice husks, peanut husks, rice stalks and other cereal by-products and papers (woody fibers) including waste paper, bamboo fibers, cotton fibers, animal hair fibers and other bio-fibre materials derived from animals and plants are pulverized and then pulverized. Cereals that have been made as a rigid material, semi-rigid material or elastic material with enhanced formability and easily decomposable properties by shaping with a pulverized molding material that is blended and prepared in a form. A method for producing a by-product-biofiber composite recycled molded article,
The cereal products were milled after the rough grinding process and the rough pulverization, on the sieve an indication of the mesh of the sieve as 3mm mesh was fractionated under the sieve, roughly pulverized product, sieved finely pulverized product and sieving under the finely pulverized material is A first raw material pulverization process for obtaining a pulverized cereal byproduct having a pulverized form consisting of a plurality of particle sizes or flake lengths ;
A second raw material pulverization process that obtains a pulverized biofiber material obtained by dry-fibre-processing the biofiber material and cutting the particle size or flake length to less than 1 mm to form a cotton-like product having thorn-like projections And
70 to 95% by weight of a cereal by-product pulverized product obtained by combining at least two pulverized pulverized products of the coarsely pulverized product, the finely pulverized product under the sieve and the finely pulverized product under the sieve, and 20% by weight of the pulverized biofiber material. % To make the main raw material, add mist-like moisture to the main raw material and stir to give wettability to the surface of the pulverized product, as well as completely dry starch paste, casein, arabic gum and other natural ingredients A crushed material molding material is prepared by adding and mixing 0.5 to 15% by weight of a system adhesive, and the pulverized material molding material is placed in a mold, pressed or surface-treated without pressure, and Grain by-product-biofiber composite regenerative molding characterized in that it is composited and shaped into a desired final shape by holding it in a normal pressure superheated steam heating atmosphere or electromagnetic heating atmosphere at 100 to 200 ° C. for a predetermined time Manufacturing method. The method for producing a cereal byproduct-biofiber composite regenerated molded product according to claim 1 ,
Used chaff as cereal by-product comprising a first raw material pulverized, mat-like, a manufacturing method of planting medium for chaff molding substrate to shaping of such a framework element of the medium molded article comprising the block-shaped other desired shape Because
Chaff milled processed coarse grinding treatment and coarsely ground, more on the sieve an indication of mesh sieve as 3mm mesh was fractionated under the sieve, roughly pulverized product, sieved finely pulverized product and sieving under the finely pulverized material is A first raw material pulverization treatment to obtain a crushed rice husk having a pulverized form consisting of
A second raw material pulverization process that obtains a pulverized biofiber material obtained by dry-fibre-processing the biofiber material and cutting the particle size or flake length to less than 1 mm to form a cotton-like product having thorn-like projections And
70-95 wt% of rice husk pulverized material using a combination of at least two different pulverized forms of the coarsely pulverized product, finely pulverized product under sieve, and finely pulverized product under sieve, and 20% by weight of pulverized biofiber material The following are blended into the main raw material, and mist-like water is added to the main raw material to stir the surface to give wettability to the pulverized product, as well as completely dry starch paste, casein, arabic gum and other natural materials. the adhesive 0.5 to 15% by weight was added and mixed to prepare a pulverized molding material was charged with the pulverized molding material into the mold, and surface conditioning treatment with pressurized or unpressurized, and Manufacture of rice husk-molded base material for greening medium characterized by being combined and shaped into desired final shape by holding in atmospheric pressure overheated steam heating atmosphere or electromagnetic wave heating atmosphere at 100-200 ° C for a predetermined time Method.

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