JP2003093223A - Screen including charcoal and rattan blind - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a screen and a rattan blind which can fully play function of charcoal and are woven by a thermoplastic synthetic resin filamentous body including a charcoal powder. SOLUTION: A concave-convex pore 9 is created by adjustment, expansion and so on of a particle diameter of charcoal. A consecutive expanded pore and a perforated expanded pore are formed. Surface dimensions and cavity dimensions of a thermoplastic synthetic resin filamentous body including a charcoal powder 1 are adjusted and expanded from 1.5 to several dozen times in comparison with a regular non-expanded thermoplastic synthetic resin filamentous body. A particle diameter distribution of a charcoal powder 5 is from 0.5 to 120 μm. Among them, the distribution which is comparatively frequently seen in 5 to 50 μm is adjusted and dispensed. Concavity and convexity of various sizes and a pore created behind them are formed. A complicated consecutive expanded pore and a perforated expanded pore are formed by further expansion. Surface dimensions and cavity dimensions of a thermoplastic synthetic resin filamentous body including a charcoal powder 1 are expanded. A part of the pore of a charcoal powder air comes directly is expanded. Attenuation of functions of charcoal can be stemmed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen and a blind woven from a carbon powder-containing thermoplastic synthetic resin linear body.

[0002]

2. Description of the Related Art A thermoplastic synthetic resin linear material formed by weaving or knitting a hollow linear material made of a thermoplastic synthetic resin into a screen or a screen, but kneading carbon powder into a synthetic resin and molding the mixture. There are no screens or blinds made by the body.
Therefore, we are trying to make a screen, a screen with various functions added to charcoal.

[0003]

The functions of charcoal have hygroscopicity, moisture release, adsorptive deodorization, positive ion adsorption, etc., but these are largely due to the function of the fine pores of charcoal. However, if carbon powder is kneaded into a synthetic resin and molded, it may be covered with the resin and its function may deteriorate. Therefore, in order to solve such problems, it is necessary to increase the content of charcoal powder as much as possible and to increase the surface area of the molded product so that the fine pores of the charcoal powder directly contact the air. This is what is considered necessary in order not to reduce the functions possessed by it.

[0004]

The present invention is a screen,
Charcoal-powder-containing thermoplastic synthetic resin that becomes the weft yarn of the blinds is provided with fine concavo-convex pores such as continuous foaming holes and through-foaming pores by foaming in the carbonaceous powder-containing linear body and adjusting the particle size of the carbon powder. Adjusting and expanding the surface area and cavity area of the powder-containing thermoplastic synthetic resin linear body by 1.5 to several tens of times as compared with the non-foaming thermoplastic synthetic resin linear body containing no carbon powder. Is a successful one.

Mixing charcoal and synthetic resin (thermoplastic resin),
When extruded, the charcoal does not melt, so the charcoal powder is present in the resin in the form of particles in a coated state, or is in a state of sticking to the resin as if it were partially exposed. Therefore, the surface of the molded product becomes uneven, and there is a flow at the time of extrusion molding. Therefore, fine holes such as a tail of a meteor are formed on the rear side in the flow direction of the convex portion.

The particle size distribution of charcoal powder is 0.5 to 120 μm, of which 5 to 50 μm, which has a relatively large amount of distribution, is adjusted and blended to control the size of surface irregularities and the state of fine pores. It can be adjusted. Furthermore, by forming more complicated continuous foaming holes and through-foaming holes by foaming, the inside (thickness part) can also be made a hollow part that comes into contact with air, and its area can be expanded several tens of times. .

The foaming method by the water content adjusting method is based on the fact that the carbon powder has high hygroscopicity, and the water content is adjusted in the drying step before molding to form a desired foaming state.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be described with reference to experimental results. The materials and processing conditions in the examples are as follows. The raw coal of carbon powder uses ceramic charcoal and bincho charcoal. Ceramic charcoal is adjusted to 10 to 60% of cedar chips, 10 to 60% of cypress, and 10 to 60% of pine to make 100 parts. Inorganic binder 3
-15 parts of water-soluble saccharides were kneaded in a carbonization furnace at a carbonization temperature of 600 to 1000 ° C.
Bincho charcoal was made from Wakayama's Umeme oak (Bakeme oak) fired at 1000-1200 ° C with a pulverizer and had a particle size of 0.5-100μm. Ground it.

The thermoplastic resin is preferably a polyolefin resin when mixed with carbon powder. The combination with charcoal powder is charcoal powder 3-
70% is possible, but 5% to 50% is preferable in practice,
Therefore, the resin content is 97-30%, and in practice 95-50.
% Is preferable, and polyethylene LD, LLD, metallocene-catalyzed polyethylene, polypropylene and the like are 1 to within this range.
Three types were blended.

In order to form the foam, foaming with an organic or inorganic foaming agent, gas foaming, water foaming, etc. are conceivable, but in the embodiment, an organic foaming agent is selected. It was adjusted at 0%. Regarding the screen and the blinds, the screen is woven with thin threads such as cotton threads and synthetic fibers as warp threads as shown in FIG. It is the one. In addition, the blinds are obtained by knitting a charcoal-powder-containing linear body into a blind shape by using a warp yarn such as cotton yarn by a knitting machine.

Next, regarding the shape of the carbon powder-containing thermoplastic synthetic resin linear body, the hollow linear body of FIG. 4 and the solid linear body of FIG.
It refers to the pleated linear body in FIG. In addition, the standard is a hollow linear body having a diameter of 3 to 5 mm and a length of 185 cm,
Make two pieces of knitting with a knitting machine, attach parts to the top and bottom,
Single width 90 × 150 cm screen and double width 180 ×
Made a 150 cm screen. In addition, in the case of a screen linear body, a hollow linear body having a diameter of 1.0 to 3.0 mm and a length of 98 cm is used, and the weave is woven so that the other side can be seen through with a flower loom, and a pattern is inserted with warp threads. Such as solid color that can not be put in,
A 90 × 150 cm screen was finished.

Hollow linear body is formed by 40 mm, L / D
Experimental molding was carried out with 26 extruders (made by Nippon Steel).
Typical examples are shown in Table 1 and the test results thereof are shown in Table 2. In addition, as a comparative sample, one in which no carbon powder was added was put as Example 4.

[0013]

[Table 1]

[Table 2]

Examples 1 and 2 are examples of ceramic charcoal.
In addition, Example 3 is an example of Bincho charcoal produced in Wakayama. Example 1
On the surface of the molded product, many fine irregularities were formed. In addition, micropores with a meteor tail were also observed. A similar state was observed on the inner surface of the hollow linear body.

Obviously, the surface area of the molding has increased. Similarly, in Example 2, fine irregularities were formed on the surface. Micropores were also observed, but larger ones than in Example 1 were mixed and the surface was felt to be rough overall. This is considered to be due to the particle size of the carbon powder. A similar state was also observed in Example 3, but the state was very similar to that of Example 1, but had many fine irregularities and had a dull matt black color.

[0016]

EFFECTS OF THE INVENTION As shown in the above examples and the test results thereof, the surface area of the molded product is expanded by providing continuous foaming holes and through-foaming holes such as irregularities and fine pores, and the functional effects of charcoal can be further enhanced. In addition to being effective, it prevented the adhesion and scattering of charcoal powder and made it possible to make screens and blinds that did not get dirty.

As an interior product, the product can be expected to have the deodorizing and deodorizing functions of the charcoal, the function of adjusting the humidity and the temperature, the air purifying function such as the adsorption of positive ions, etc., just by hanging it in the room as an interior product.

Due to the composition and the structure of the molded product that enhances the function and effect, the fine pores originally possessed by the charcoal have more parts that come into direct contact with the air. Moreover, the value as a product could be greatly increased.

[Brief description of drawings]

FIG. 1 is a front view of a blind of the present invention.

FIG. 2 is a front view of the screen of the present invention.

FIG. 3 is an enlarged cross-sectional view of a carbon powder-containing thermoplastic synthetic resin hollow linear body of the present invention.

FIG. 4 is a perspective view of the shape of a carbon fiber-containing thermoplastic synthetic resin hollow linear body of the present invention.

FIG. 5 is a perspective view of the shape of a solid linear body of a thermoplastic synthetic resin containing carbon powder of the present invention.

FIG. 6 is a perspective view of the shape of a hollow linear body with a fold of thermoplastic synthetic resin containing carbon powder of the present invention.

[Explanation of symbols]

1 Charcoal powder-containing thermoplastic synthetic resin linear body 2 Warp 3 The top and bottom of the blind 4 Woven thermoplastic resin hollow filaments containing carbon powder 5 charcoal powder 6 Uneven shape due to charcoal powder 7 Continuous foam micropores 8 Through-foam micropores 9 Surface irregularities and surface micropores (meteor-shaped) 10 folds

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Claims (3)

[Claims] 1. A screen or a blind woven from a thermoplastic synthetic resin linear body containing carbon powder. 2. The thermoplastic synthetic resin wire containing carbon powder according to claim 1, wherein the surface is made uneven by foaming, continuous and through-foaming holes are provided to expand the surface area, and the portion of the carbon powder directly contacting air is increased. Screen, woven from a strip. 3. A method of changing the unevenness of the surface by adjusting the particle size of the carbon powder and providing fine pores behind the carbon powder to expand the surface area and increasing the portion of the carbon powder that directly contacts the air. A screen and a blind woven from a linear body of a thermoplastic synthetic resin containing carbon powder of Item 1.