JPH078500B2 - Insulation board for tatami floor and its manufacturing method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulation board for tatami mats and a method for producing the same. For more details,
The present invention relates to a method for producing an insulation board for tatami floors, which is useful for treating industrial waste and is excellent in quality.

[0002]

2. Description of the Related Art FIG. 3 shows a cross-sectional view of a conventional tatami floor, and 51 is an insulation board in which a polystyrene foam 52 is sandwiched between two insulation boards 51. 53 is a tatami mat. The insulation board 51 is a T-class insulation board defined by JIS and is made of wood chips. The polystyrene foam 52 is formed by foaming polystyrene resin into a board.

[0003]

However, the insulation board 51 in the conventional example maintains the restoring force (cushion) by reducing the pressure when it is molded into a board, but as a result, it is fragile and not sticky. However, there is a problem that when cutting the house to the floor plan, if the cutting tool cuts even a little, it will chip or lose its shape. Further, there is also a problem that the edge of the board is broken when the table is replaced and the edge of the board is deformed, so that the board cannot be reused. In spite of the above problems, the current situation is that today, there is no straw-deficient or sticky board, so it is used without interruption. On the other hand, there are the following problems of industrial waste treatment. In recent years, the production of disposable diapers and sanitary products has been increasing, but these use polyethylene film as an exterior material, non-woven fabric or paper pulp as an interior or absorbent material, and a rubber band or the like as a part. These are usually mass-produced by an automatic production line,
Occasionally, there are scraps that cannot be sold as a product due to a line failure or the like. These sanitary product scraps have reached a considerable amount nowadays, and some factories produce several tons of scraps per month. However, since polyethylene, which is a waste of sanitary products, emits black smoke when incinerated and causes pollution, it is currently stored in a warehouse, but there is no suitable treatment method, so the storage location is in trouble.

In view of the above circumstances, it is an object of the present invention to provide a reusable insulation board for tatami floors and a method for producing the same, which solves the problem of industrial waste disposal and is easy to use. .

[0005]

A method of manufacturing an insulation board for a tatami floor according to the present invention is made of polyethylene,
The first step is to pulverize the waste material, which is a physiological product mainly made of non-woven fabric and paper pulp, to produce a raw material, and further mix it with an adhesive to defibrate it. It is characterized by comprising a second step of kneading the primary raw material obtained in the step, and a finishing step of papermaking, drying, pressing and cutting the secondary raw material obtained in the second step. Further, the tatami floor insulation board of the present invention, polyethylene, non-woven fabric and paper pulp as the main material powder of sanitary products and wood sludge papermaking as the main component, to strengthen the adhesive force with an adhesive, board It is characterized by being molded.

[0006]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a block diagram of a manufacturing method according to the present invention. In the first step I, wastes of a physiological product mainly made of polyethylene, non-woven fabric or paper pulp are crushed. As mentioned above, large quantities of sanitary product scraps such as paper diapers and sanitary products are currently stored in the vicinity of the sanitary product factory, and these are roughly cut and sifted. As a result, the absorbing polymer, which is a chemical substance mixed as an absorbent, is removed. Physiological product debris after removal of the polymer, since the polyethylene film, the nonwoven and paper pulp as a main material,
These are ground in water with a beater to give powders of about 2 mm or less. Next, a fibrous material such as polypropylene, rayon, ester, cotton, or hemp is mixed as an adhesive and defibrated until the length becomes about 10 to 20 mm. In this way, in the first step I, the primary raw material in which the powder of the physiological product waste and the rectangular fiber of the adhesive are mixed is manufactured.

The second step II is carried out simultaneously with the first step I by using another pulper. First, papermaking sludge and wood sludge are defibrated with a pulper, and when the defibration is appropriately performed, the primary raw materials are added and mixed. At the same time, an appropriate amount of water resistant agent such as wax emulsion is added. When defibrated sufficiently in this manner, a semi-fluid secondary raw material in which the powder of the sanitary product waste, the rectangular fibers of the adhesive and the sludge fibers are mixed and entangled with each other is produced.

Next, in the finishing step III, the secondary raw material is made into paper and dried with a dryer to reduce the water content to 10% or less. Further, pressurize at a temperature of 180 ° C for 1 minute to dissolve the pressure sensitive adhesive. Then the specified thickness, for example 10mm, 15mm, 20
Restrict to mm and cut to the specified size of 1 m x 2 m. This completes the insulation board according to the present invention.

Table 1 shows an example of the insulation board manufactured by the above manufacturing method. The raw material proportions shown in Table 1 relate to a board having a width of 1 m, a length of 2 m and a thickness of 10 mm, and the total weight is 4.500 kg. Of the following components, sludge has the function of solidifying the powder of sanitary waste. The sanitary product wastes serve as a bulking material and soften the excessive solidification property peculiar to sludge, and give cushioning properties by the restoring force inherent in non-woven fabric and paper pulp. This has the effect of improving the feel of the tatami mat. The adhesive gives the board in which sludge, which is the main component, and sanitary product waste powder are combined, toughness against impact and bending, good sharpness of the blade, firmness of the board, and high bending restoring force.
The ratio of the sanitary waste is 20 to 80%, preferably about 50%. Below 20%, a large amount of sludge must be used and the problem of industrial waste treatment cannot be solved. If it exceeds 80%, it becomes difficult to maintain the shape of the board.

Table 1 ────────────────────────────────── Raw materials Weight (kg) Weight ratio (% ) ────────────────────────────────── Sludge (paper, wood, etc.) 1.014 23 Physiological products Scrap powder 3.000 67 Adhesive 0.486 10 Water resistant agent Appropriate amount − ────────────────────────────────── Next, described in Table 1 above. The following performance tests were conducted on the insulation board of this example. (a) Local compression test A press-fit rod having a diameter of 25 mm was erected on an insulation board as a test piece, a load of 20 kgf was applied, and the displacement after 30 seconds of loading was measured. The measured value is the maximum value at any three points.
The smaller the measured value, the better the strength. (b) Bending strength test A bending test was performed according to the test method (6.4) specified in JIS A5905. The distance between fulcrums is 150 mm. The larger the measured value, the better the strength. (c) Water content test A water content test was conducted according to the test method (6.3) specified in JIS A5905. The lower the measured value is, the more dry feeling is given, which is preferable. (d) Density test A density test was conducted according to the test method (6.2) specified in JIS A5905.

The results of each of the above tests are shown in Table 2. In addition, * 1 in the comparative example is the conventional insulation board 51
* 2-4 are JIS A5905 (5.
It is the quality condition of the class B insulation board defined in 3). Table 2 ────────────────────────────────── This Example Comparative Example ────────── ───────────────────────── local compression testing 0.54 mm 4 mm ※ 1 flexural strength test ^{7 kgf / cm 2 6kgf / cm} 2 ※ 2 water rate test 5.6% 6~10% ※ 3 density test ^{0.27 g / cm 2 0.40 g /} cm 2 ※ 4 ──────────────────── ────────────── As shown in Table 2 above, it can be seen that the insulation board of this example has good local compression test results and high bending strength. Also, the water content and density are JI
It is better than the S standard value. Therefore, it can be judged that the insulation board of the present invention has a quality superior to that of the conventional insulation board as a whole. Since the degree of the cushioning property and tenacity varies depending on the mixing ratio of the main components, the mixing ratio may be appropriately changed to make the board with emphasis on cushioning property or the board with emphasis on tenacity.

FIG. 2 shows a sectional structure of a tatami mat using the above-mentioned insulation board. 1 is an insulation board of the present invention, 2 is a polystyrene foam, and 3 is a tatami mat. With the tatami mat having such a structure, discarded sanitary product waste can be recycled as the insulation board 1, which is useful for resource saving and pollution prevention.

[0013]

As described above, according to the present invention, it is possible to provide an insulation board which is strong and has a good feel while preventing pollution by polluting the environment.

[Brief description of drawings]

FIG. 1 is a block diagram showing a method of manufacturing an insulation board according to the present invention.

FIG. 2 is a cross-sectional view of a tatami using an insulation board according to the present invention.

FIG. 3 is a sectional view of a conventional tatami mat.

[Explanation of symbols]

 1 insulation board 2 polystyrene foam 3 tatami mat

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location E04F 15/02 102 D 7416-2E // B27N 3/04 Z 9123-2B B29K 105: 26

Claims (3)

[Claims] 1. A first step of crushing a physiological product waste, which is mainly composed of polyethylene, non-woven fabric and paper pulp, and mixing it with an adhesive to defibrate it, and defibrating a papermaking wood sludge. The second step of kneading the primary layer material obtained in the first step, and the secondary raw material obtained in the second step are subjected to papermaking, drying, pressurization,
A method of manufacturing an insulation board for tatami floors, which comprises a finishing step of cutting. 2. Mainly polyethylene, non-woven fabric and paper pulp
Physiological products debris to wood and water pulverized by a bi-Ta Hara
A tatami mat floor according to claim 1, characterized in that the material is manufactured .
Insulation board manufacturing method. 3. An insulation board for a tatami floor, which is mainly composed of a powder of a sanitary product, which is mainly made of polyethylene, non-woven fabric, and paper pulp, and wood sludge for papermaking, and has an adhesive force to enhance the adhesive strength.