JPH072041Y2 - Water absorbing material - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is intended to be used as a sandbag substitute, and to completely remove residual water when cleaning water tanks, cages and pools, or water that has infiltrated into leisure boats. The present invention relates to a water absorbing material used as a water removing material for removing water.

(Prior Art) A large amount of sandbags is used in order to prevent flooding of rivers and prevent the spread of fire extinguishing water at a fire site. The sandbags are used to fill a suitable bag with earth and sand, etc., and stack the sandbags to block flood water, spreading water, and the like. Usually, such sandbags are pre-filled with earth and sand and stored at a predetermined position, or they are used by being filled with earth and sand when needed on site.

(Problems to be solved by the invention) However, when the soil is filled with soil in advance as described above, it is bulky, so it is necessary to take a large space for the storage, and the weight (usually 25 kg) is large. Since it is large, it takes a great deal of labor to carry it to the place to be treated. On the other hand, when the earth and sand are filled at the time of use, there is a problem that there is an appropriate and appropriate amount of earth and sand in the vicinity, and since the earth and sand are filled each time, an emergency situation cannot be immediately responded.

The water tank for fish for appreciation, the fish cage for fish and shellfish, and the pool also require appropriate replacement and cleaning of the water, but it is not possible to completely suck out the polluted water remaining in the corners of the container or tank with a pump or the like. It is possible and therefore requires very troublesome work. Furthermore, when a boat such as a leisure boat is flooded during operation, it is dangerous if it is not removed promptly, and if it cannot be completely drained and remains wet, its interest is halved.

The present invention has been made in view of the above, is not bulky, is convenient to carry, and can sufficiently exhibit the function as a sandbag, and is used for cleaning an aquarium of fish for viewing, a fish cage for seafood, and even when cleaning a pool. It is intended to provide a multifunctional water absorbing material which is extremely convenient for removing residual water in the water or water that has invaded into the leisure boat, and other speedy removal of unnecessary water.

(Means for Solving the Problems) A water absorbent material of the present invention that achieves the above object will be described with reference to the accompanying drawings. FIG. 1 is an enlarged vertical sectional view showing an example of the water absorbent material of the present invention, FIG. 2 is a vertical sectional view of another embodiment, and FIG. 3 is a partially cutaway perspective view showing an example of a bag body used in the present invention. FIG. 4 is a perspective view showing the same use state, and FIG. 5 is a vertical sectional view taken along line VV of FIG.

That is, the gist of the water absorbing material of the present invention is that the super absorbent polymer powder particles 2 and the high specific gravity powder particles 3 are dispersed and carried in the thickness of the water permeable paper sheet 1.

Further, as an embodiment thereof, one in which a water-permeable paper sheet 1 in which a highly water-absorbent polymer powder particle 2 ... And a high specific gravity powder particle 3 are dispersed and carried within a thickness is housed in a water-permeable bag body 4. included.

The super-absorbent polymer powder particles 2 are starch-based, acrylate-based, and other known so-called super-hygroscopic / water-absorbent resin powder particles, which do not dissolve in water but absorb several hundred times their own weight of water. It has the property of

The high specific gravity powder particles 3 are not particularly limited as long as they are high specific gravity powder particles, but any one selected from soil, sand and slag discharged from the blast furnace is preferably adopted in view of price or manpower. It

The water-permeable paper sheet 1 is a low-priced paper such as pulp paper (so-called tissue), synthetic paper, and other water-permeable porous paper, and a surface-treated paper such as kraft paper is not suitable because it has poor immediate water absorption. . The high water-absorbent polymer powder particles 2 and the high specific gravity powder particles 3 are dispersed and scattered on a raw material paper, and the same raw material paper is superposed on the raw material paper and integrated by an embossing press or the like to obtain the thickness of the paper sheet 1. It is dispersed and carried inside. The amount of super absorbent polymer powder 2 supported is preferably 20 to 100 g / m ² , 20 g / m 2.
If it is less than ^2, the water absorption is not sufficient, and if it exceeds 100 g / m ² , the specific gravity when absorbing water tends to be small. Also,
20 to 100g / m ² is desirable for the amount of high specific gravity powder 3 supported.
When it is less than / m ² , the specific gravity becomes small and it becomes easy to float in water or move due to waves.

The bag body 4 is made of a non-woven fabric, a woven fabric, a sheet made by weaving a thin strip-shaped plastic film in a Hessian cloth pattern, a fine mesh body to the extent that the water-absorbing gel of the polymer powder particles 2 ... It is prepared by the woven fiber material. The size of the bag body 4 is determined according to the intended use, but it needs to be a size capable of accommodating the paper sheet 1 expanded by water absorption, and in the case of a sandbag substitute, the total weight after water absorption. 35 ~ 50 × 45 ~ so that
A size of about 60 cm is suitable. In other cases, the size of the handy type is desirable, and a slightly elastic type is also used.

(Operation) When the water-absorbing material having the above-mentioned configuration is put into water, the water that has permeated through the fiber gaps of the paper sheet 1 comes into contact with the superabsorbent polymer powder particles 2 and is quickly absorbed therein. Since the super-absorbent polymer powder particles 2 absorb hundreds of times their own weight of water, the paper sheet 1 expands greatly by the volume of the absorbed water. Moreover, since the super-water-absorbent polymer powder particles 2 ... Are dispersed and carried in the paper sheet 1, all the polymer powder particles 2 ... React quickly with water to absorb water and become a lump containing unreacted materials. Never. Then, the weight of the absorbed water is added to the weight of the high-specific-gravity powder particles 3 carried in advance, so that a weight feeling is exhibited as a whole. Therefore, when this is used as a substitute for sandbags, it can be put into water and then piled up at a predetermined place, and its weight and bulkiness will cause it to sit down without damaging due to vibrations or water pressure, and to sufficiently block water. To do. Also, when this is put into the residual water in the container or the invading water in the leisure boat when cleaning the above-mentioned aquarium or cage, it absorbs water promptly as described above and its weight sinks to the bottom, scales, etc. At the same time, residual water in every corner is instantly removed.
The water-absorbent material used for water removal in this way may be discarded as it is, and post-treatment is also easy.

When the water-permeable paper sheet 1 carrying the superabsorbent polymer 2 ... And the powder particles 3 with high specific gravity is stored in the bag body 4, even if the water-absorbing gel of the polymer powder particles 2 is released from the paper sheet 1, the bag body Four
Is prevented from leaking out. Therefore, when it is used as a sandbag substitute, its function does not deteriorate due to wave operation or water pressure. Further, when used for removing water from a water tank or the like, the inside of the container is prevented from being contaminated due to spilling of the water-absorbing gel.

(Example) Next, an example will be described. Fig. 1 shows that super absorbent water-soluble nomomer powder particles 2 and high specific gravity powder particles 3 are spread evenly on a tissue material by a spraying machine, and the same tissue material is overlaid on it to emboss the whole. It was pressed. By this embossing press, the upper and lower tissue raw materials are integrated to form a water-permeable paper sheet 1, and within the thickness of the water-absorbing ponomer powder particles 2, ...
Are supported in a uniformly dispersed state. Therefore, when this is put into water, the water that has entered from the fiber gap of the paper sheet 1 comes into contact with the superabsorbent ponomer powder particles 2 ... Due to this large amount of water absorption, the entire paper sheet 1 expands and becomes bulky, and the weight of the water absorbed by the high-specific-gravity powder particles 3 is weighted so that the paper sheet 1 has a weight that can be stored at the bottom of the water.

FIG. 2 shows an example in which a plurality of water-permeable paper sheets 1 carrying the superabsorbent ponomer powder particles 2 and the high specific gravity powder particles 3 are contained in a bag body 4. The method of storing the paper sheets 1 in the bag body 4 is as follows, in addition to the case of stacking a plurality of sheets as shown in FIG. It is appropriately selected according to the conditions such as the storage location. In addition, the sealing of the bag body 4 is performed in advance by the paper sheet 1 ...
In the case of storing and shipping the product, it is made by heat fusion of four laps, sewing and further gluing. However, when the bag body 4 and the paper sheet 1 are shipped separately and stored and used at the site, as shown below. A structure that can be sealed by a simple manual operation is adopted.
When the water absorbent material of this embodiment is used as a sandbag substitute, the paper sheet 1 carrying, for example, 50 g / m ² super absorbent polymer powder particles (assuming to absorb about 300 times as much water) 2 ... It is desirable that the bag be stored in the bag 4 for about 2 m ² as a guide.

FIG. 3 and FIG. 4 show an example of a bag body 4 which can store the paper sheet 1 at the time of use. The bag 4 is obtained by folding a belt-like cloth 40 made of a synthetic fiber non-woven fabric in two and heat-sealing both sides to form an opening 41 into which the paper sheet 1 is inserted. Inward facing portions 42, 43 are formed at both ends of the band-shaped cloth 40 in the opening 41, and an outward facing portion 44 is formed at one of the ends. These look-back sections 42, 43,
Both sides of 44 are fused together as above. In the bag body 4 having such a structure, after the paper sheets 1 are stored as shown in FIGS. 4 and 5, the outward facing return portion 44 is closed on the opposite side to close the return opening 41. Introversion part 42, 43
Has a function to seal the opening 41 together with the outward facing portion 44 that has been folded back. As a result, the water-absorbing gel of the highly water-absorbing polymer powder particles 2 carried on the paper sheet 1 after being put into water is formed. It is possible to more effectively prevent the product from spilling out of the bag. The bag body 4 is sold as a set together with the paper sheet 1 or separately, and the bag body 4 is sold each time by a customer.
Then, the paper 1 is properly stored and sealed for use. The sealing is extremely simple as described above, and it is convenient to simply discard it after it has been used.

Incidentally, the present invention is not limited to the above-mentioned embodiment, and it is possible to adopt, for example, the bag body 4 in which the opening is closed with a string like a conventional sandbag bag, and when there is a fear that the weight is insufficient depending on the purpose of use. It is also possible to use earth and sand together.

(Effect of the Invention) As described above, the water absorbent material of the present invention is bulky and lightweight when not in use, and is extremely convenient for storage and transportation. Then, at the time of use, the superabsorbent polymer powder particles dispersed and carried within the thickness of the water-permeable paper sheet quickly absorb a large amount of water and swell, and the weight of the absorbed water becomes high. When it is used as a sandbag substitute due to its weight and bulkiness, it exerts its function sufficiently without being disrupted by vibrations or water pressure.
Also, water removal in the water tank, cage, pool or leisure boat is simple and complete, and its handling is extremely convenient. In addition, if the water absorbent material of the present invention is always kept in the home and is used when, for example, the water in the washing machine suddenly overflows, the overflow water is removed immediately, and it spreads to other parts or downstairs. Water will be prevented from entering.

As described above, the water-absorbing material of the present invention has an extremely wide range of uses and its remarkable effect is of great practical value.

[Brief description of drawings]

FIG. 1 is an enlarged vertical sectional view showing an example of the water absorbent material of the present invention,
FIG. 4 is a vertical sectional view of another embodiment, FIG. 3 is a partially cutaway perspective view showing an example of a bag body used in the present invention, FIG. 4 is a perspective view showing the same use state, and FIG. It is a VV line vertical cross-sectional view. (Explanation of reference numerals) 1 ... Water-permeable paper sheet, 2 ... Super absorbent polymer powder particles, 3 ...
High specific gravity powder, 4 ... Water-permeable bag.

Claims (3)

[Scope of utility model registration request] 1. A water-absorbent material comprising a highly water-absorbent polymer powder particle (2 ...) And a high specific gravity powder particle (3 ...) dispersed and carried within the thickness of a water-permeable paper sheet (1). 2. A water-permeable paper sheet (1) having a highly water-absorbent polymer powder particle (2 ...) And a high specific gravity powder particle (3 ...) dispersed and supported within a thickness in a water-permeable bag body (4). A water absorbent material that is stored. 3. The water absorbent material according to claim 1, wherein the high specific gravity powder particles (3 ...) Are any one selected from soil, sand and slug.