JP2003093211A - Pipe pillow made of material containing charcoal power having fine rugged pores such as continuous or penetrating foam pores - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enlarge the surface area of pipe pillow form and increase the number of fine pores that are directly exposed to air in order to prevent the deterioration of gas adsorption, deodorizing and moisture absorbing capabilities that are the functions of the fine pores of charcoal powder and that deteriorate when the charcoal powder is covered by resin during process making the charcoal powder form into thermoplastic synthetic resin form. SOLUTION: The pillow made of thermoplastic synthetic resin pipe form containing charcoal powder has 1.5 to several tens times of surface area of the form and the pores comparing to pillows containing no charcoal powder. By foaming thermoplastic synthetic resin containing charcoal powder and adjusting the distribution of particle sizes of the powder, continuous foam pores and penetrating foam pores as well as rugged fine pores are produced, thereby making the increased surface area of the form and the pores. Functions of charcoal can be maintained by increasing the area of the fine pores that are directly exposed to air.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe tip for a pillow made of a carbon powder-containing synthetic resin provided with fine irregularities such as continuous foaming holes and through foaming holes, and uses the same. Pillows 2. Description of the Related Art Pillows made of charcoal such as charcoal, bamboo charcoal, rice husk charcoal, coconut husk charcoal, etc. are kneaded with synthetic resin in order to solve the problem such as scattering of charcoal powder and adhesion to other objects. However, since the carbon powder is covered with the resin, various functions such as gas adsorption, deodorization, moisture absorption, and moisture release by the fine pores of the charcoal are attenuated. [0003] Therefore, in order to solve such a problem, the surface area of the pillow pipe tip must be increased so that the fine pores of the carbon powder directly contact the air. We thought that it was necessary to keep the function of charcoal from deteriorating. SUMMARY OF THE INVENTION [0004] The present invention is directed to a continuous method of foaming and adjusting and blending the particle size distribution of carbon powder in a pipe tip containing a carbon powder of a synthetic resin which is a pillow filling. It is provided with fine unevenness holes such as foaming holes and through foaming holes, and the surface area and cavity area of the pipe tip are 1.5 times to several tens times compared to non-foamed pipe tips that do not contain charcoal powder. It has been successfully adjusted and expanded. [0005] Charcoal and synthetic resin (thermoplastic resin) are mixed,
When extruded, the charcoal powder does not melt, so that the charcoal powder is present in the resin in a coated state or adhered to the resin. Therefore, the surface of the molded product becomes uneven, and there is a flow at the time of extrusion molding, so that a fine hole like a tail of a meteor is formed behind the convex portion in the flow direction. [0006] The particle size distribution of the coal powder is 0.5 to 120 µm, and among them, those having a relatively large distribution amount of 5 to 50 µm are adjusted and blended to reduce the size of the irregularities on the surface and the state of the fine pores. I was able to adjust. Furthermore, by providing more complicated continuous foaming holes and through foaming holes by foaming, a hollow portion was formed in the inside (thick portion) that was in contact with air, and the area thereof could be increased by several tens of times. Next, embodiments of the present invention will be described with reference to experimental results. In the examples, the materials and processing conditions are as follows. Ceramic charcoal and Bincho charcoal were used as raw charcoal of charcoal powder. Ceramic charcoal was adjusted and blended between 10 to 60% cedar, 10 to 60% cypress, and 10 to 60% pine to make 100 parts. Inorganic binder 3
~ 15 parts are kneaded with a water-soluble saccharide, and carbonized at a carbonization temperature of 6
Carbonized at 00-1000 degrees, and further 0.5-
It was made into a carbon powder having a particle diameter of 120 μm. Bincho charcoal was prepared by baking charcoal (Mamegashi) from Wakayama at 1000-1200 ° C into a charcoal powder having a particle diameter of 0.5-100 μm using a crusher. As the thermoplastic synthetic resin, a polyolefin-based resin is preferable in mixing with a carbon powder. The blending with charcoal powder can be 3 to 70%, but practically 5 to 50% is preferable. Therefore, the resin content is 97 to 30%, and practically 95 to 50%.
50% is preferable, and 1 to 3 types of polyethylene LD, LLD, metallocene catalyzed polyethylene, polypropylene and the like are blended in this range. In order to form a foamed state, foaming with an organic or inorganic foaming agent, gas foaming, water foaming, or the like can be considered. Adjusted at 1.0%. The shape is 1.3 to 8 mm in diameter, and the length is 0.7 to 1.
A hollow pipe tip adjusted by a factor of 5 was used. This pipe tip was experimentally molded using a 40 mm L / D 26 hollow extrusion molding machine (manufactured by Nippon Steel). Table 1 shows typical examples, and Table 2 shows the test results. In Examples 1 and 2, ceramic carbon powder was used, the distribution center of the particle diameter was changed, and the amount of the blowing agent was also changed. Example 3 and Example 4 use charcoal powder of Bincho charcoal,
The average particle size of the coal powder and the amount of the blowing agent were changed. As a comparative sample, a sample without coal powder was placed as Example 5. Embodiment 2 and Embodiment 4 are Embodiment 1 and Embodiment 3.
Since the average particle diameter of the coal powder is large and the amount of the foaming agent is large as compared with that of the above, it seems that there are many fine pores such as irregularities on the surface of the molded product, continuous foamed pores, and through-foamed pores. In comparison between the ceramic charcoal of Examples 1 and 2 and the Bincho charcoal of Examples 3 and 4, ceramic charcoal has better gas adsorption performance than Bincho charcoal. Further, in the same coal powder, the larger the average particle diameter, the larger the amount of the foaming agent, and the larger the number of continuous foaming holes and through-foaming holes, the better the gas adsorption performance. [Table 1] [Table 2] The specifications of the hollow linear bodies in the examples were the same for comparison. As shown in the above examples and the test results thereof, the surface area of the molded product is increased by providing irregular fine holes such as continuous foaming holes and through foaming holes, and the functional effects of charcoal are reduced. It was fully demonstrated, and also prevented charcoal powder from adhering and scattering, and could withstand use as bedding products. Due to the movement of the head while sleeping, the pipe tip (molded product), which is the core material of the pillow, moves in various ways, and the air inside the pillow passes well. This leads to further promoting the functional effects of charcoal. By moving the head, air is sent to the fine pores of the charcoal,
This has made it possible to more effectively perform humidity and temperature adjustment functions and air purification functions such as ion functions and deodorization. The structure that enhances the functional effect is the present invention.

[Brief description of the drawings] FIG. 1 is a perspective view of a pipe tip (molded product). FIG. 2 is a cross-sectional and enlarged perspective view of a pipe tip (molded product). FIG. 3 is a perspective view of a pleated pipe tip (molded product). [Explanation of symbols] 1 charcoal powder 2 Uneven shape by charcoal powder 3 Open-cell foam 4 Micro-pores through foam 5 Unevenness and surface micropores (meteor shape) 6 folds

Claims (1)

Claims: 1. A pipe tip for a pillow made of a carbon powder-containing synthetic resin having fine irregularities such as continuous foaming holes and through foaming holes, and a pillow using the same.