JPS6325960B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention can be used as origami, or as a processing sheet for making art flowers, pseudo-vegetables, pseudo-fruits, etc., and can also be used for folk crafts, handicrafts, educational materials, and various interior decorations. The present invention relates to a sheet for molding that is suitable for making products, etc.

Conventionally known processed materials for handicrafts (hereinafter referred to as processed materials) are generally made of high-quality paper with a thickness of 0.2 mm or less, coated with colored pigments, or so-called origami, which is made by appropriately printing on the surface of the paper. However, molded products made from this type of processed material lack impact cracking resistance, and because the processed material itself is water-absorbing, it will not be able to maintain its original shape due to external impact or water leakage. It was hot.

However, recently, so-called ceramic paper containing a large amount of china clay has been devised as a processing material to replace the above-mentioned high-quality paper (single-use paper), and such ceramic paper has come to be used. . The main reason for this is that when the porcelain paper is soaked in water for a few minutes and the moisture adhering to the paper surface is wiped off, the porcelain paper, moistened by water absorption, is given the appropriate plasticity (flexibility: hereinafter the same) necessary for folding. Therefore, it is possible to use this as a base material to mold it into a desired shape, and when the obtained element is heated and fired at a high temperature, for example, approximately 1000 degrees Celsius, this element becomes a rigid piece of art and craft. It was possible to obtain a compact molded product.

However, this molded article made of ceramic paper is not imparted with the desired rigidity until it is first fired at high heat to the shaped article obtained in the above manner.
Even though it is easy to form the shaped body, in order to commercialize the shaped body, it is not only necessary to install a firing furnace for high heat treatment, but also to take into account the number of man-hours required for processing, which leads to an increase in product cost. The disadvantage is that it cannot be avoided.

Therefore, there is a natural limit to the use of such ceramic paper as a processed material, and furthermore, once fired, the raw material loses its characteristics as paper and becomes ceramic, so there is no need to worry about the slightest influence from the outside. It has the disadvantage that it is easily damaged by severe impact.
Furthermore, it has been pointed out that such damaged products and defective molded products cannot be reused as processed materials.

In order to eliminate the drawbacks of high-quality paper, ceramic paper, etc. as processing materials, the present inventor has found that, as a result of various studies, they are easy to mold without dissolving in water, and have the desired rigidity and elasticity after processing. Vulcanized fiber (hereinafter referred to as fiber) has been used exclusively as an industrial material for parts for home appliances, circuit breakers, fuse tubes, etc. due to its electrical insulation and arc-extinguishing properties. It has been found that certain materials can be processed materials suitable for the present invention.

Therefore, as a result of further research based on the above-mentioned recognition, the present inventor actively adopts the point that the above-mentioned certain fibers are susceptible to dimensional changes due to water, moisture, etc. By immersing a fiber that is rigid in a dry state in water or exposing it to an atmosphere of high temperature and high humidity, e.g., 40°C and 90% RH (the same applies hereinafter) to make it plastic and then drying it, it will return to its original state. It has been experimentally confirmed that the stiffness is higher than that of the fiber, and at the same time, in order to effectively and consistently exhibit these characteristics, the thickness and water absorption rate of the fiber must be adjusted under certain conditions (ranges). The present invention was completed by realizing that it is essential to have a mutual correlation.

That is, the present invention has a thickness in the range of 0.2 to 0.5 mm,
The sheet is made of fiber having a water absorption rate of 30 to 60% per hour and is used for forming origami, interior decoration, etc.

It is an object of the present invention to provide fibers with a certain thickness and water absorbency, appropriate steeliness and elasticity without being dissolved by immersion or wetting in water as described above, and which can be used as a material for handicrafts, such as art flowers, etc. To provide at low cost a fiber for handicrafts, such as artificial vegetables, fruits, interior decorations, etc., which is highly moldable and has high rigidity, elasticity, and impact resistance after molding and drying.

As is well known, the fiber used here is made by treating the base paper, which is mainly made of natural fibers, with a concentrated solution of zinc chloride (Be'71.4) to make the fiber colloid, then winding it,
It can be obtained by drying, pressing, etc., but in order to make it suitable as a processed material, it is essential that the thickness is 0.2 to 0.5 mm. If the thickness is less than 0.2 mm, the moldability is good, but the rigidity and There are technical problems in fiber production including strength, making it unsuitable. Also, the thickness is 0.5mm
If the above is the case, even if it is possible to plasticize (soften) the material by keeping it wet for a long time or soaking it in water, there is a problem that the processed material is too thick and it is difficult to obtain the desired bending precision during the forming process. It is by no means suitable as a processed material.

Therefore, in order to achieve the intended purpose (above) in the present invention, the water absorption rate corresponding to the thickness of the fiber to be applied (0.2 to 0.5 mm) should be adjusted as described below (30 to 60% per hour). It is important to set it rationally, and the present invention is characterized in this point.

That is, its water absorption rate is 1 compared to the above fiber.
If the rate is less than 30% per hour, the material must be immersed in water for a long time to obtain plasticity that allows it to be molded as a processed material, which is impractical in achieving the above objective. This is based on the results of various experiments conducted by the present inventors, and it can be seen that when the water absorption rate is less than 30% per hour, especially 10% or less, the fiber is immersed in water for 24 hours. It is known that the necessary plasticity cannot be obtained even after a certain period of time has elapsed, and that molding in such a state is impossible.

On the other hand, if the water absorption rate is 60% or more,
Although it can effectively absorb water in a short period of time and plasticize it to a moldable state, it not only poses problems in terms of rigidity and strength in obtaining the desired molded product, but is also unsuitable from the viewpoint of fiber manufacturing technology. .

For this reason, in the present invention, the relationship between the thickness of a commonly used fiber and the water absorption rate required for plasticization is an inseparable correlation in which the former is 0.2 to 0.5 mm and the latter is 30 to 60% per hour. It was confirmed that by establishing this relationship, when the fiber is immersed in water, it absorbs water in 15 to 30 minutes, becomes plastic, and can obtain the desired formability, and this was determined to be the optimum condition for achieving the above objective.

It goes without saying that the fiber used here can be colored or patterned in various ways as required, and therefore various desired molded products as described above can be easily obtained.

Hereinafter, some examples of carrying out the present invention will be described in which interior decoration items and the like are molded using fibers having a thickness of 0.2 to 0.5 mm and a water absorption rate of 30 to 60%/hour as a base material.

(1) Molding of a sailing boat (interior decoration) Size (area) of fiber required to manufacture a sailing boat using paper-made fiber (hereinafter referred to as raw material) with a thickness of 0.5 mm and a water absorption rate of 30%/hour. After predicting this, a required fiber with a slightly larger size approximately corresponding to this was cut from the raw material using a conventional method, and when it was immersed in water for 30 minutes, it would become plasticized, so it was taken out of the water and attached to the outer surface. After wiping off the water, you can use it as a molding material and process it with your hands.

Therefore, if you use this material as a base material to obtain the desired shape of a sailing boat and then dry it naturally,
Since it is possible to obtain the above-mentioned sailing boat with high rigidity, excellent strength, and impact resistance, by applying the desired coloring to the required portions at this point, the desired interior decoration product can be obtained.

When plasticizing the fiber cut to the required size in the above process, it may be left in a high temperature, high humidity room for about 30 minutes without being immersed in water, or it may be dried with hot air as needed instead of natural drying. Needless to say, it is okay. Furthermore, when processing the above-mentioned basic body, several formworks (preferably split into two) for the intended interior decoration including the above-mentioned sailing boat are prepared in advance, and each mold is made to have plasticity as described above. By press-fitting the softened fiber into the mold, it is possible to mass-produce various desired ornaments more quickly and effectively.

(2) Molding of pseudo-vegetables and fruits From raw materials with a thickness of 0.2 mm and a water absorption rate of 35%/hour, fibers slightly larger than the size required for the above molded products are cut in the same manner as in (1), and then immersed in water for 15 minutes. Then, since this material becomes plasticized in the same way as in (1), take it out of the water, wipe off the moisture on the outer surface, and process it into vegetable and fruit shapes using the fiber as a base material as described above.
Dry them naturally (or by hot air drying)
By doing so, a molded product with high rigidity, high strength, and impact cracking resistance can be easily obtained as in (1). Therefore, by applying the required coloring to this material, the desired pseudo-vegetable,
You can easily get fruits.

However, if the lever is formed mechanically using a predetermined mold, it is of course as effective as (1).

(3) Forming of art flowers From raw materials with a thickness of 0.5 mm and a water absorption rate of 60%/hour, cut a portion slightly larger than the size required for the above molded product in the same manner as in (1), then soak it in water for 15 minutes. Once plasticized, the fiber is taken out of the water, the water on the outer surface is wiped off, and the fiber is treated in the same manner as in (1) to obtain a softened plastic fiber. Next, use this as a base material and process it in the same manner as in (1) to obtain various desired irregularly shaped flower shapes, and then dry it naturally (warm air drying is also good) to obtain high rigidity, high strength, and good impact cracking resistance. Since a molded article can be obtained, a desired art flower can be obtained by applying the required coloring to this article.

However, it goes without saying that it is more effective to use a predetermined mold when molding the flower.

As described above, the present invention makes it possible to easily obtain molded products with excellent stiffness, strength, and impact cracking resistance. If the molded product is immersed (immersed) in water for 30 to 60 minutes or left in the high-temperature, high-humidity room, the molded product will absorb water or moisture, become plasticized, and lose its shape. After taking it out of the water or the high temperature and humidity chamber (however, if submerged in water, wipe off the water), if it is used as a molding material and molded as described above, the intended new molded product can be easily obtained.

As explained above, since the present invention is made of fiber having a diameter of 0.2 to 0.5 mm and a water absorption rate of 30 to 60% per hour, it exhibits the following unique effects.

In use, the present invention plasticizes by simply immersing it in water for a short time or leaving it in a high-temperature, high-humidity room, so it is easy to mold, and the molded product obtained after drying has high rigidity and elasticity. This makes it possible to obtain molded products with excellent impact resistance and quality that is completely different from conventionally known origami (high-quality paper) and ceramic paper.

Furthermore, the molded product of the present invention can be immersed in water or left in the high-temperature, high-humidity room to absorb water or absorb moisture and become plasticized. It can be used repeatedly as a processing material.

Furthermore, the present invention can be used as various molding materials such as imitations such as art flowers, imitation vegetables, fruits, etc., folk crafts such as kokeshi, tableware, Buddhist statues, teaching materials such as globes, interior decorations such as ornaments, sailing boats, helmets, etc. It is suitable for multi-purpose uses such as five-storied pagodas, and can be obtained as a high-quality molded product.

Furthermore, the present invention has particularly great practical effects in that it is suitable for mass production and can be provided at low cost because it is easy to use as a material for various molding processes.

Claims (1)

[Claims] 1 Thickness is in the range of 0.2 to 0.5 mm and water absorption rate is 1
A sheet for forming origami, interior decoration, etc., characterized by being made of vulcanized fiber in the range of 30 to 60% per hour.