JPS63201255A - Tatami floor produced by regenerating sponge waste having cushion property - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] i. Object of the Invention At present, a large amount of swamp deer 1, which has succulent properties, is used in automobiles, furniture, bedding, hardwear, footwear, etc.

During the manufacturing process and after use, a large amount of leather, cut scraps, foam layer inside the mold, bulky waste, etc. are generated, but only a portion is used and most of it is industrial waste. They are incinerated or used as stepladders.

The present invention is a tatami floor made from a mixed recycled sponge made by mixing open-cell foam sponge waste that is breathable and has shoe-sheen properties, which is currently not in use, and closed-cell foam waste that is not breathable and has shoe-sheen properties. This makes it possible to supply lightweight, cheap, and durable tatami mats, and contributes to improving the living environment of humankind in the future.

n Structure of the Invention - A, $11 Contents The sbonjiga 1, which has a shoe-shine property, increases in hardness roughly in proportion to its density. If a non-breathable material (closed cell foam) and a breathable material Ia (open cell foam) are the same material and have the same density at room temperature, the open cell foam is better! ! The elasticity is softer than #J fabric compared to H pattern bubble foam. (Plastic Form Handbook 2227
Figure 111.58481 m When the temperature rises, the bonded foam with closed cell foam becomes soft, and the synthetic resin body becomes soft, and the gas inside the closed cells expands, resulting in a decrease in the coefficient of expansion. is about 10 times larger than the suspended cell foam. (Plastic Foam Handbook P645-653) When converted to area, it is approximately 100 times larger, so no matter how much it is, it is 4! ! ! Excellent closed-cell plastic shoes cannot be used alone as tatami flooring because it cannot absorb the temperature expansion of building structural materials, which is used for tatami flooring spread over a limited area.

If used, the ridges will rise or deform due to the cushioning properties due to thermal expansion of the gas within the closed cells due to temperature rise. Currently, polystyrene foam pasted on plywood or polyethylene foam sewn into a straw tatami mat in the form of a sandwich are used as closed-cell foam for tatami mat flooring. CJIIJ Chemical Styro Tatami) To achieve the hardness of a tatami floor using only open cell foam, the density must be compressed to 0.5 to 0.6. (
(See Figure 2) This is twice as dense as rice straw, which has a density of 0.2 to 0.4 (Heibonsha Encyclopedia).

The present invention is made of air permeable open cell foam that can withstand temperature changes, with pieces of closed cell foam that is not air permeable but has strong elasticity interspersed therein, and combines the advantages of both. It is a tatami floor with a shoe-like quality similar to that of straw tatami floor. This material is called mixed bone regeneration sponge. This product is manufactured as follows.

As shown in Figure 2, the proportions of ingredients in raw materials vary widely, but
Roughly cut open cell foam into 4 pieces, crush each piece into pieces of 10 cm or less at a ratio of 1 to 1 closed cell foam, and apply adhesive while mixing until the density becomes 0.2 to 0.3. It can be made by compressing, molding, heating and drying. In this state,
It looks like wood with some elasticity. However, if you slice it into 101 pieces, you'll get a konjac-like slab that's plump and hard. This is easy to hold and easy to hold (it feels just like stirring a sea cucumber.The thickness of both sides of this item is 0.5~
When you paste #1 reinforcement (waterproof paper), the whole thing becomes as hard as a bottle and becomes like a fusuma stock. This is easy to carry and can be easily processed into tatami mats. It also feels exactly like a tatami floor made of rice straw. The reinforcement material replaces the strength of rice graves with straw tatami floors. Water-resistant paperboard is cheap and easy to process.

For an elegant and durable finish, use a durable plain weave cloth. If you want water resistance to last, a plastic film is better.

Functions of Mouth and Components When I hold a 10m slice of this mixed regenerated bone suhonji with my fingertips, I feel the hard part and soft part feel rough on my fingertips. However, when a reinforcing material is applied, the tension of the reinforcing material equalizes the pressure, and the feel becomes very weak. Furthermore, if you put a tatami mat on top of it, you can barely tell.

Why does mixed recycled trousers, which are about 10 meters thick, feel like a 50-meter thick rice straw tatami floor?They are soft and hard. When analyzed, the open-cell foam debris is first pulled in by the weak vertical pressure, and the closed-cell foam debris is pulled in by the blowing, and further force is applied, and when it can no longer withstand, it crawls into the weak spot in the horizontal direction. Finally, due to the elasticity of the materials such as soft negative polyurethane rubber, natural rubber, polyethylene, and vinyl chloride resin, mixed recycled sbonde for gin tatami mats is a fraction of the thickness of rice straw tatami flooring, and the same material is produced. I think it has a synergistic effect.

Rice straw itself is mainly composed of cellulose, which itself has poor elasticity. However, the dehydrated cells form a closed cell foam. Also, rice straw and 1. -C state forms an open cell foam. This is also a mixture of open cell and intermediate cell foams. Therefore, I think that by making it thicker, air will be surrounded by the straw, giving it the cushiony feel of a tatami mat. Unless an ordinary item is destroyed, the more it is compressed to increase its density, the harder it becomes.

The same goes for mixed regeneration sponde.

According to Heibonsha's encyclopedia, if the tatami floor is 17 to 30 inches heavy, it is considered to be of the highest quality. It is said that the harder it is, the better. In the case of mixed recycled sponge (density 0.2 to 0.36), when attempting to obtain the average hardness of straw tatami using only breathable open-cell foam waste without adding closed-cell foam, it was found that The resulting density is 0
．． It won't become hard unless you compress it to the 6th position. (See Figure 2) If it is only the closed cell foam waste, about 0.15 is sufficient.

In order to make the mixed regenerated sponge used as a sponge as hard as the average straw, the compression density changes depending on the ratio of open cell foam and closed cell foam components. The results of the experiment are shown in Figure 2. The higher the proportion of successive Qi purification forms, the more
To put the density in another way, it has to be really dense. The more closed cell foam there is, the lighter it can be.

However, the more closed cells there are, the greater the humidity changes.
Besides, the 113Pi method is also difficult.

As shown in Figure ■, the closed cell foam waste is
It can be seen that by entering a value of 0 to 204, the density and weight are approximately half that of the open cell foam alone.

As a result of the experiment, the soft urethane foam J? 14. E
Mixed ladle foam for tatami mats made with 1 part waste of VA foam has a density of about 0.25, and it is easy to manufacture uniform products.

It can sufficiently withstand humidity changes (-1θ°C to 50°C). The manufacturing process for raw nuhonji for bones consists of crushing, measuring and mixing, applying adhesive, compression molding, heating, taking out, and pasting the sliced sleeve reinforcement, but during compression molding, open-cell foam waste is Both foam and foam waste are compressed and their elasticity is balanced. However, when heated with hot water or air, the closed cell foam layer expands. However, when it cools down, it becomes smaller and harder than before. The open cell foam debris is therefore less elastic than its equilibrium prior to heating.

As a result, mixed recycled sponges are made of materials with weak elasticity and materials with strong external properties glued together in various sizes less than 10 mm.As a result, thin and wide shoe sheen materials are made. It is a product of the substance it possesses.

This product has good absorption of pressure and impact energy, and mixed recycled sponge is less likely to collapse (harder to break) than shoeshine materials made only of closed cell foam or shoeshine material made only of closed cell foam, that is, materials made of only a single substance.

Soft latex foam is used instead of soft polyurethane foam for shoe sheen material with closed cell foam, and natural rubber sponge or polyethylene foam is used instead of EVA foam for shoe sheen material with closed cell foam.
Also good. In the case of natural rubber, things are a little trickier. The raw material for latex foam is old pine tresses, which are used as bulky waste and are generated in large quantities at incineration plants.

Semi-rigid flexible polyurethane foams are made from both fin-cell and closed-cell foams. In addition, a mixture of double-cell foam and closed-cell foam, such as a material obtained by laminating a soft urethane foam to an EVA foam, can also be used as a raw material at °C.

C. Apply adhesive while rotating the materials in the example above using a blender to make bread made of recycled sponge.

It feels like elastic wood.

Remove the skin from both sides (approximately 2-) and slice into 7 equal pieces: 1.800X900X12wn...
・・・・・・ Roots of the cost-mixed regenerated sponge of 4 are formed in 5. This is a root-like substance that is heavy and pulver, like hard konnyaku.
By pasting 5 to 1 degrees of water-resistant paperboard, a fusuma-like material is created.

As for the hardness, the tatami face can be sewn together with the edges using a special sewing machine, just like the rice straw tatami floor. Turn it inside out ° [Staple it together and put duct tape on top of it to create a tatami mat. The total weight is 74, which is infinitely lighter than straw tatami. The feeling of walking on it, sitting on it, and lying down on it are no different from those on straw tatami.

Although it is thin at 15cm thick, its heat retention is not much different from a 50m+ straw tatami mat.

2. Conclusion The tatami floor made from rice straw is 50m+ thick, weighs 17-30m, is mechanically and structurally strong, and has good impact resistance; is a mixed recycled sponge with a thickness of 14m. It's better than the tatami floor. Even if the bulb is a little weak, it can support the weight of a person, and the larger the mass, the more the impact force can be alleviated. Other than this, the mixed recycled sponge for tatami mats of the present invention is superior as a tatami floor in terms of shoe-stainability, water resistance, light weight, heat retention, workability, etc.

The reason why the rice straw tatami floor and the sponge tatami floor of the present invention have similar properties is that they have roughly the same density, and the structure is also closed cell (closed cell) and continuous cell. I think it's because it's similar to foam foam.

Rice straw has good heat retention Density 02 0.12 Kd/m, h, t
:Polyurethane foam density 02 0.025Kd
/m, h, t: (Frastek foam convex grip
PlT Figure 1.5 > Due to the above reasons” (thinning °
That's why it's good.

11: Effect of invention ■ It is thin and has IFF content, so it is easy to store and carry.

■ Cutting can be done using a hydraulic press, allowing mass production of standardized products.

■ Water resistant.

■ No dust mites are generated.

■ Compared to conventional products, it is very cheap. (more than 30%)■ Because it is thin, it can be used in small spaces such as under hospital beds and in vehicles.

■ Unlike straw tatami floors, there is no waste, and there is no risk of damage to the floor surface caused by veneer tatami floors.
It can also be used in Western rooms.

■ When you put Asahi weighing material on it, it is thin from the beginning, so there is less chance of it getting crushed.

■ For reasons of ■ and ■, tatami mats are made as standard products and are made as C1 ready-made products, which can be sold over the counter on distribution machines.

■ Since the main material is a mixed recycled bone sponge with shoe-seen properties, it can be compressed horizontally and vertically by 0 to 10 degrees when spread over a limited area, and the tatami floor can be thin and moveable.
Never.

ClaimsShonji waste consisting of an open-cell foam with a cushioning property and a closed-cell foam with a cushioning property (open-cell foam and closed-cell foam mixed together, separate products, or bonded together)・Anything that is C compound is possible)
pulverized into pieces of 10 m or less, blended so that the ratio of closed cell foam to the whole component was 54 to 304% (the ratio of vertical open cell foam was 954 to 70%), and glued while rotating the blender. The agent is gauzed and the density is 0.2 to 0.
．． Compress, shape, and slice it into 4 pieces.
[I made a tatami floor made by pasting reinforcing material on both sides of a recycled sponge board made from a mixture of independent, legal, and bubble foam.

Claims (1)

[Claims] Sponge waste composed of open-cell foam with cushioning properties and closed-cell foam with cushioning properties (open-cell foam and closed-cell foam mixed together, separate products, and composites made by pasting together) (all items allowed) 1
Grind to 0 mm or less, mix so that the ratio of closed cell foam to the whole component is 5% to 30% (the ratio of vertically open cell foam is 95% to 70%), and adhere while rotating the blender. Apply the agent, and the density is 0.2 to 0.4
The tatami floor is made by pasting reinforcing material on both sides of a recycled sponge board that is a mixture of independent, continuous, and cellular foam, which is compressed, molded, and then sliced to create a shape.