Patent Application
20080040878
FIG. 3-a is a bottom view of a bristle body for the hair brush of the current invention for preventing hair-loss.
FIG. 3-b is a bottom view of a spike body for the hair brush of the current invention for preventing hair-loss.
FIG. 4-a is a front view of the head of the hair brush of the current invention for preventing hair-loss.
FIG. 4-b is a rear view of the head of the hair brush of the current invention for preventing hair-loss.
The head (4) has an upper void (7) and lower void (8) to receive the spike body (6) and the bristle body (5), respectively. The bottom view of the bristle body (5) and the spike body (6) is an oval shape. Each body has a shallow wall (5-1), (6-1) that is formed along the oval-ring shape perimeter of the bristle body (5) and spike body (6), respectively. The front view of the head (4) of the brush (1) according to current invention is also an oval shape. An oval shape groove (4-1) is developed along the perimeter of the front face of the head (4) to receive the shallow wall (5-1) and engage the bristle body (5) to the head (4). Another smaller oval shape groove (4-2) is developed on the rear face of the head (4). The bristle body (6) is engaged to the head (4) via this groove (4-2). Air holes (4-3) are developed on a mid-plate (4-3) of the head to allow air pass through from the upper void (7) to the lower void (8) freely. This structure renders repulsion force to the bristle body (5) and the spike body (6). However, the structure itself does not have any function of preventing hair loss.
In first step micro particles of magnetizable material and anion emitting materials having diameter of 1 to 5 μm are prepared.
90 kg (90 wt %) of iron oxide, 1 kg (1 wt %) of silver, 2 kg (2 wt %) of magnetite, 1 kg (1 wt %) of natural ore from Japan, 1 kg (1 wt %) of clay, 2.5 kg (2.5 wt %) of tourmaline, 0.5 kg (0.5 wt %) of titanium, 1.5 kg (1.5 wt %) of amorphous silica, and 0.5 kg (0.5 wt %) of feldspar powders are provided from commercial suppliers.
Micro particles of magnetizable material and anion emitting materials from step 1 and plastic pellets are mixed. 100 kg of micro particles from step 1 and 300 kg of polyurethane are mixed in a stirrer at ambient temperature for an hour with stirring speed of 60 rounds per minutes. Polyurethane is supplied in a pellet form of 3 to 5 mm diameter. By stirring the pellets of plastic and micro-particles of mineral components they are well dispersed in the mixture. The final composition of materials in the final mixture is summarized in Table 1.
Mixture prepared in the second step is melt extruded at extruder temperature 190 to 210° C. During melt extrusion, the molten polyurethane surrounds the micro-particles of minerals in micrometer order.
Molten polyurethane, containing 25 wt % of mineral powders therein, from the extruder in the third step, is injected to a mold to form to be a bristle body (5) and a spike body (6).
The bristle body (5) and spike body (6) are exposed to a magnetizer to render a magnetic field to the bodies of (5) and (6).
Magnetized bodies of (5) and (6) are assembled to the brush (1) body, which is made of ABS (acrylonitrile-butadiene-styrene) polymer by injection molding.
After assembling, anion emitting strength and magnetic field strength is measured. Anion concentration is measured with Echo Model No. EB-12 indicates 400 to 700 each of anion/cm3. Magnetic field strength measured with KENETEC Model No.TM-501 shows 5 to 50 Gauss.
Experiment; Hair loss preventing ability is measured by combing 10 cm2 area of human scalp one minute a day for 30 days.
As shown in Table 1, all the result shows that regardless of gender and age the brush of the current invention is effective in preventing hair-loss. The number of hair-loss less than 10 each per day is normal for average person.
