JP2006132145A - Wall material and wall - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wall material enabling utilization of a granular body of bamboo. <P>SOLUTION: A main material is the granular body of the bamboo generated by pulverizing, cutting or grinding natural bamboo. The granular body as the main material is mixed with water to prepare a paste-like material. A functional additive containing a flame retardant material, a fibrous material, paste, and a mold protective agent and the main material are mixed with water. The granular body generated in a production process of a knitting needle made of natural bamboo is used for the granular body of the bamboo. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a wall material and a wall, in particular, a wall material and a wall that can use bamboo as a main material.

  Conventionally, after the dried bamboo is punched out (after drying), it is crushed or pulverized in a size of several centimeters or less obtained by finely cutting or powdering, specifically bamboo powder. And a mixture of bamboo rods of several mm to several centimeters are artificially colored green, red, yellow, etc., and the crushed or pulverized bamboo is colored with aggregates such as silica sand, soil It has been known to obtain a wall material (corresponding to a wall coating material) by mixing with water and a hydraulic solidifying material such as gypsum and water-soluble resin (see Patent Document 1). And in this patent document 1, diatomaceous earth and powder 5.0kg as main materials, CMC (carboxymethylcellulose) as hydraulic solidification material 0.2kg, yellow pigment as color powder 0.1kg, aggregate The above-mentioned wall material is specifically prepared by appropriately mixing 10.0 kg of silica sand, 0.1 kg of bamboo material, and 8.0 kg of water. Further, it is described that, when the wall material prepared as described above is troweled to a wall surface adjusted to a base to a thickness of 8 mm, a calm and natural feeling is given. Furthermore, in this patent document 1, since the bamboo crushed or crushed material contained in the wall material is artificially colored, the color of the crushed or pulverized material is applied to the surface of the wall by applying to the wall surface. There is also a statement that it can appear and form a wall with a beautiful appearance.

  From the above, the wall material proposed by Patent Document 1 is selected from a hydraulic solidifying material such as diatomaceous earth as the main material, whereas the crushed or crushed material of bamboo is colored in the wall and its aesthetics. It can be said that it is used as an auxiliary material for increasing the temperature. In other words, the technique described in Patent Document 1 is based on providing a wall material for forming a so-called “earth wall”, and is made of a hydraulic solidifying material such as diatomaceous earth for forming the earth wall. It can be said that the coloring of the wall, which cannot be expressed only by the main material, is achieved by artificially coloring the bamboo crushed or crushed material as an additive.

  On the other hand, one of the industrial fields using bamboo as a material is a field for manufacturing bamboo knitting needles. The outline of the manufacturing process of bamboo knitting needles in this field is shown in FIG. 1. As shown in this figure, in this manufacturing process, the bamboo cut out from the bamboo basket is trimmed to remove the knots and dried. Pre-treatment step 1 to break bamboo to obtain split bamboo, extraction step 2 for forming the divided bamboo obtained in pre-treatment step 1 into a round bar, drying, trimming, sorting, etc. after the extraction step An intermediate process 3 for performing each treatment, a sizing process 4 for gradually thinning the bamboo round bar by performing several stages of sizing treatment using sand paper, and the bamboo round bar that has undergone the sizing process 4 are cut and aligned. Dimensioning process 5 for performing dimensioning and selecting, several stages of tipping process 6 for forming a needle tip at the end of a bamboo round bar after the dimensioning process, and various processes 7 including many subsequent processes are performed. Is called.

  In each of the steps shown in FIG. 1, a sizing step 4 for gradually reducing the thickness of a round bamboo bar and a tipping step 6 for forming a needle tip are illustrated in FIG. 2 or FIG. A polishing process is applied to the bamboo round bar.

  2A and 2B show the sizing process 4 (see FIG. 1). In the figure, 11 is sandpaper that travels at a fixed position, and 12 is a feed tire. In the sizing step, the bamboo round bar 100 is sandwiched between the sand paper 11 and the feed tire 12 while the sand paper 11 is running. Then, the surface of the round bar 100 is polished by the sand paper 11 in the direction perpendicular to the fiber length direction of the round bar 100 while the round tire 100 is fed in the direction of arrow F1 in FIG. Then, by doing so, the round bar 100 is shaved stepwise and gradually thinned to a predetermined thickness. In this sizing process, the surface of the round bar 100 is scraped by the sand paper 11 to generate fine bamboo powder having a size of 200 mesh or less.

  3 (A) and 3 (B) show the tipping process 6 (see FIG. 1). In the figure, reference numeral 21 denotes sandpaper that travels at a fixed position. In the tipping step 6, the end of the round bar 100 is pressed against the sandpaper 21 while the sandpaper 21 is running and the bamboo round bar 100 is moved in the direction of arrow F <b> 2, and the end is pushed in the fiber length direction of the round bar 100. And sharpen the end of the round bar 100 by doing so. In this tipping process 6, the end surface of the round bar 100 is shaved by the sand paper 21, and bamboo powder having a size of bread crumb is generated.

  Conventionally, the bamboo powder particles generated in the sizing process and the attaching process described with reference to FIGS. 2 and 3 have been forced to be treated as industrial waste.

JP 2003-129634 A

  However, there is a problem that it is costly to treat bamboo powder particles generated in the manufacturing process of bamboo knitting needles described with reference to FIGS. 1 to 3 as industrial waste.

  Therefore, the inventor of the present application has conducted earnest research from the viewpoint of effectively utilizing the bamboo powder particles generated in the manufacturing process of bamboo knitting needles for the purpose of utilizing the characteristics of bamboo, thereby completing the present invention. It came to.

  That is, the present invention includes bamboo powder particles obtained by pulverizing, cutting or polishing natural bamboo, including bamboo powder particles generated by polishing natural bamboo in the above-described bamboo knitting needle manufacturing process. By making a wall material mainly made of wood, the bamboo powder can be effectively used as a wall material. In addition, the wall material is harmful to daily life such as ammonia and formaldehyde, which are the characteristics of bamboo. It is an object to provide characteristics that are beneficial to human life, such as adsorption removal action of substances, bactericidal action, and deodorizing action.

  The present invention also reduces or eliminates the amount of bamboo powder that must be treated as industrial waste by providing a wall material that can consume a large amount of bamboo powder. For the purpose.

  The wall material according to the present invention is a wall material for preparing a paste-like wall coating material by mixing with water, and mainly consists of bamboo powder particles generated by pulverizing, cutting or polishing natural bamboo. It is included as a material. The paste form here means including clay.

  This invention can effectively use bamboo powder as the main material of the wall material by using the bamboo powder generated by pulverizing, cutting or polishing natural bamboo as the main material. . In addition, as seen in Patent Document 1 described at the beginning, the bamboo crushed material or pulverized material is not used as an auxiliary material for the soil wall, but a wall mainly made of bamboo powder is applied. Because it provides a wall material that can be raised, the required usage of bamboo powder is increased and must be treated as industrial waste, for example, generated in the manufacturing process of bamboo knitting needles It becomes possible to greatly reduce or eliminate the amount of bamboo powder. In addition, a large amount of bamboo powder contained in the wall as a main material is a characteristic of bamboo, such as adsorption and removal of toxic substances such as ammonia and formaldehyde, sterilization, and deodorization. There is an advantage that the characteristic which becomes beneficial is fully exhibited. Furthermore, the wall material of the present invention is used for the purpose of preparing a paste-like wall coating material by mixing bamboo powder as its main material with water, so by adjusting the amount of water As long as the paste can be maintained, it is suitable for various wall coating methods such as trowel coating, spray coating, and roller coating, and there is an advantage that these wall coating methods can be appropriately selected in consideration of various circumstances. .

  In the present invention, it is desirable to include one or more functional additives selected from flame retardants, fibrous materials, glue, and antifungal agents together with the main material. Bamboo is particularly flammable when dry, so mixing flame retardants increases the flame resistance of the walls. In addition, when a fibrous material is mixed, cracks in the wall are less likely to occur. Further, when the paste is mixed, the paste helps to increase the adhesive strength of the bamboo granule, so that the work of applying the paste-like wall coating material to the wall is facilitated, and cracking is less likely to occur. Furthermore, because bamboo powder contains abundant nutrients such as starch, there are concerns about the occurrence of wrinkles. However, this point can be sufficiently suppressed by mixing fenders. .

  In the present invention, as the bamboo powder as the main material, a powder generated in the manufacturing process of a knitting needle made of natural bamboo can be suitably used. The manufacturing process of a knitting needle made of natural bamboo has already been described with reference to FIGS. And in this manufacturing process, a large amount of bamboo powder particles are generated especially in the sizing process and tipping process, so by using the powder particles as the main material of the wall material according to the present invention, It is possible to greatly reduce or eliminate the amount of powder that requires processing.

  By the way, as explained at the beginning, in the sizing process during the manufacturing process of the bamboo knitting needle, the bamboo round bar is polished in a direction perpendicular to the fiber length direction, so that the fine size of 200 mesh or less is obtained. In contrast to the generation of bamboo powder, the end of the bamboo round bar is polished in the fiber length direction in the tipping process, so that a bamboo powder having the size of bread crumbs is generated. Of these, the wall is formed by painting a paste-like wall coating material prepared by mixing only bamboo powder particles having a size of 200 mesh or less generated in the sizing process with water and mixing it with water. The color of bamboo powder itself as a main material appears on the surface of the wall, and the surface texture of the wall has a high degree of smoothness as seen in a so-called white wall. In addition, bamboo powder particles of 200 mesh or less generated in the sizing process are mixed with bamboo powder particles of the size of bread crumbs generated in the tipping process to form a wall material, which is mixed with water. The wall formed by painting the paste-like wall coating material prepared in this way has a rough feeling on the surface properties in accordance with the blending ratio of the bamboo powder particles generated in the pre-sticking step. Specifically, the roughness of the surface texture of the wall becomes more prominent as the blending ratio of the bamboo powder particles generated in the pre-sticking step increases.

  The wall using the bamboo granular material according to the present invention has the above-mentioned wall material held on the wall surface through a troweling process, a spraying process or a roller coating process, and bamboo as the main material of the wall material. By exposing the powder granules to the surface, the color and surface properties of the bamboo powder granules themselves appear on the surface. According to this wall, most of the actions described for the above-described wall material are exhibited.

  As described above, according to the wall material or wall according to the present invention, an unprecedented wall material mainly composed of bamboo powder or a mixture of bamboo powder and a functional additive. In addition, when a wall painting operation is performed using the wall material according to the present invention, the color and surface properties of the bamboo powder itself appear on the surface of the wall. It is possible to form a wall having a color and surface properties that were not found in the above. In addition, the wall can be provided with characteristics that are beneficial for human life, such as adsorption and removal of biohazardous substances such as ammonia and aldehyde, sterilization, and deodorization, which are the characteristics of bamboo. .

  In particular, the use of bamboo powder produced in the manufacturing process of bamboo knitting needles makes it possible to reduce or eliminate the amount of bamboo powder that must be treated as industrial waste. In addition to providing an excellent effect, there is an effect of opening the way to effectively use bamboo powder particles that have been treated as industrial waste.

  The wall material according to this embodiment is mainly made of bamboo powder particles generated in the manufacturing process of knitting needles made of natural bamboo. And the paste-like wall-coating material is prepared by mixing the powder body of bamboo as such a main material with water. In many cases, together with bamboo powder as the main material, one or more functional additives selected from flame retardants, fibrous materials, glue, and antifungal agents are included, A paste-like wall coating material is prepared by mixing a mixture of the main material and the functional additive in water.

  The natural bamboo can be used as long as it belongs to bamboos in plant taxonomy, such as true bamboo, bamboo shoots, and broken bamboo.

  The manufacturing process of a knitting needle made of natural bamboo is as described above with reference to FIG. 1. In the sizing process 4 and the tipping process 6 in the process, the polishing process described with reference to FIG. 2 or FIG. Therefore, a wall material mainly composed of a large amount of bamboo powder particles generated by the polishing treatment is used, and it is mixed with water to prepare a paste-like wall coating material. The viscosity of the wall coating material prepared in this way can be adjusted by adjusting the amount of water so that it has the same viscosity as the wall coating material used in the case of painting a well-known earth wall that has been used frequently. is there. Accordingly, the paste-like wall coating material includes a clay-like wall coating material suitable for trowel coating, as well as a low-viscosity wall coating material suitable for spraying using a spray gun, Also included is a viscous wall coating suitable for roller coating.

The amount of water mixed with bamboo powder as the main material of the wall material is 2 to 5 parts of water relative to 1 part of the main material when trowel coating is the target, and the amount of water when spraying is the target. It is preferable to make 5 to 10 parts of water with respect to 1 part of the material, and a smooth wall coating operation can be performed by selecting such a blending amount.
As described above, in the sizing process during the manufacturing process of bamboo knitting needles, fine bamboo powder having a size of 200 mesh or less is generated, and in the tipping process, bamboo powder having a size of about bread crumbs is generated. The body is generated. Among these, only the bamboo powder having a size of 200 mesh or less generated in the sizing process is used as the wall material, and the wall formed by painting the paste-like wall coating material prepared by mixing it with water, The color of the bamboo powder itself as the main material appears on the surface of the wall, and the surface property of the wall has a high degree of smoothness as seen in a so-called white wall.
In addition, bamboo powder with a size of 200 mesh or less generated in the sizing process is mixed with bamboo powder of the size of bread crumbs generated in the tipping process to make a wall material, which is mixed with water The wall formed by painting the prepared paste-like wall coating material has a feeling of roughness in its surface properties in accordance with the blending ratio of bamboo powder particles generated in the pre-sticking process. Therefore, it is possible to adjust the roughness of the surface texture of the wall by increasing or decreasing the blending ratio of the bamboo powder particles generated in the prior step.

  When preparing wall materials by mixing functional additives including flame retardants, fibrous materials, glue, and antifungal agents with bamboo powder as the main material, bamboo powder as the main material The blending amount of the body is desirably 80% or more of the total amount of the main material and the functional additive, and by using the main material amount of 80% or more, the amount of bamboo powder used As a result, the amount of bamboo waste as industrial waste can be greatly reduced.

  Of the functional additives, the flame retardant is useful for limiting the flammability of bamboo powder as a main material, and for enhancing the flame resistance of the wall formed by wall coating. As the flame retardant, borax or boric acid can be used.

  The fibrous material exhibits the effect of suppressing cracks in the painted wall. For the fiber material, natural pulp fibers such as wood pulp, bamboo, cotton and hemp, and natural animal fibers such as wool can be suitably used. Synthetic fibers such as nylon (registered trademark) and polyester, and regeneration of rayon, etc. It is also possible to use inorganic fibers such as fibers and glass fibers. In order to prevent cracking, it is necessary to blend 1 part or more of a fibrous material with respect to 100 parts of bamboo powder as a main material, and it is particularly desirable to blend 2 to 15 parts. If the amount of the fibrous material is less than 1 part, a sufficient crack prevention effect cannot be obtained, and if it exceeds 15 parts, the amount of the fibrous material becomes excessive and the meaning of using bamboo powder as a main material becomes dilute.

  The glue is useful for increasing the adhesive strength of the bamboo powder, which is the main material. Paste includes polysaccharides obtained from starch, konjac, guar, etc., natural pastes such as latex, synthetic pastes such as polyvinyl acetate emulsion and polyvinyl alcohol, as well as other general-purpose products such as carboxymethylcellulose. It is also possible to use a thickener as a paste. The paste may be blended in an amount of 1 part or more with respect to 100 parts of bamboo powder, with 2-10 parts being most preferred. When the amount of glue is less than 1 part, the effect of increasing the adhesive force is difficult to be exhibited, and when the amount exceeds 10 parts, the amount of glue is too large.

  Antifungal agents help prevent the propagation of straw on bamboo granules that are rich in nutrients such as starch. As the antifungal agent, food or cosmetic preservatives such as methyl paraoxybenzoate, ethyl and butyl, which are called parapenes, can be preferably used. The effect of the antifungal agent is recognized if 0.2 part or more is added to 100 parts of the bamboo powder, and if 1 to 15 parts are particularly added, the generation of wrinkles is almost complete. It is known that it can be suppressed.

Example 1
Air-dried bamboo powder granules (water content 7%) generated by grinding performed in the manufacturing process of knitting needles made of natural bamboo are used as the main material, and 280 parts of water are used for 100 parts of the main material. The wall material was prepared by adding and mixing. The wall formed by directly applying this wall material to the lower ground of the plywood board had the bamboo powder exposed on the surface, and the color of the bamboo powder itself was recognized as the wall color. Moreover, when the wall using this invention product 1 was naturally dried for one week, it was found that fine cracks were generated in the whole.

Example 2
After preparing a wall material by adding 4 parts of guar gum powder as a paste, 10 parts of allophane as a mineral, and 300 parts of water to 100 parts of the same granular material used in Example 1, a trowel is used. And made a wall directly painted on the ground of the structural plywood. When this wall was naturally dried for one week, it was found that fine cracks were partially generated.

Example 3
To 100 parts of the same granular material used in Example 1, 4 parts of guar gum powder as glue, 10 parts of allophane as inorganic material, 6 parts of softwood kraft pulp as fiber material, and 320 parts of water are added. After the wall material was prepared, a trowel was used to create a wall that was directly applied to the lower ground of the structural plywood. In this wall, no cracks were found even after sufficient drying.

Example 4
When the wall material used in Example 3 was put in a vinyl bag and left in a room at 28 ° C. and a relative humidity of 85%, wrinkles occurred in one week.

Example 5
Although 6 parts of ethyl alcohol was added to the wall material used in Example 3, no antifungal effect was observed.

Example 6
When 1.8 parts of ethyl paraoxybenzoate was dissolved in 6 parts of ethyl alcohol and added to the wall material used in Example 3, the room standing period at 28 ° C. and 85% relative humidity was 6 hours. No wrinkles were observed after the moon.

Example 7
Instead of the softwood kraft pulp contained in the wall material used in Example 6, a wall material to which a commercially available roll tissue was added in the same ratio was prepared, and then directly applied to the lower ground of the structural plywood using a trowel. I made a wall. This wall was not cracked even after it was sufficiently dried.

Example 8
The wall material used in Example 6 was troweled on a gypsum board coated with a base wall material for a bathroom wall and dried sufficiently. No cracks occurred on this wall.

In the embodiment described above or Examples 1 to 8, although the wall material mainly composed of bamboo powder particles generated in the manufacturing process of bamboo knitting needles is used, as the main material of the wall material according to the present invention. The bamboo powder particles are not limited to this, and it is a matter of course that powder particles obtained by crushing, cutting or polishing bamboo can be used as the main material.
Of course, bamboo powder particles generated in the process of manufacturing bamboo crafts, for example, the handle of tea utensils, may be used as the main material.

It is explanatory drawing which showed the manufacturing process of the bamboo knitting needle. (A) (B) is explanatory drawing of a sizing process. (A) and (B) are explanatory drawings of a tipping process.

Claims (4)

A wall material for preparing a paste-like wall covering material by mixing with water, characterized in that it contains bamboo powder particles generated by pulverizing, cutting or polishing natural bamboo as a main material. Wall material. The wall material according to claim 1, comprising one or more functional additives selected from flame retardant materials, fibrous materials, glue, and antifungal agents together with the main material. The wall material according to claim 1 or 2, wherein the bamboo powder as the main material is a powder generated in a manufacturing process of a knitting needle made of natural bamboo. The wall material according to any one of claims 1 to 3 is held on a wall surface through a troweling process, a spraying process, or a roller coating process, and bamboo powder as a main material of the wall material A wall characterized in that the color and surface properties of the bamboo powder itself are exposed on the surface by exposing the particles to the surface.

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