Introduction of the brush with grooves and the notch of the cosmetic device including this brush

Today, we are here to introduce a brush with grooves. The brush shown in Figures 2 and 3 has regular adjacent notches (grooves), that is, the cone is divided into an integer number of areas with the same angle (the same as the number of notches and grooves), and each angle area is divided by 2 A ridge or two ridges of two consecutive grooves are bounded by each other, and the grooves come from the rotation of the brush around the central axis. However, the grooves can also be made into irregular and unequal areas and grooves with different characteristics. For example, Figure 4 shows a brush 401 of the present invention. The difference from that shown in Figure 2 is that two consecutive grooves have neither the same depth nor the same angle: each flat section of the brush The depth of the groove is measured as the distance from the groove line to the surface of the envelope. The width of the corner of the groove is the angle between the ridge lines that define the groove. The notch is irregular: the depth is da (varies along the axis of the core and the groove 406a with an angular width of 3a and the groove 406b with a depth of db and an angular width of 6b alternately da>db, 6a> 6b. The notches can also be made separate and non-adjacent, the result is that on the surface of the brush, the unbroken space or the peak area of u200bu200bthe envelope surface is between two consecutive notches. This possibility is shown in Figure 5. As shown, there is an invented brush 501 in which the peak area 509 and the groove 506 of the brush appear in turn. The difference between the brush 601 shown in Fig. 6 and that shown in Fig. 2 is that it has a parallel generatrix ( The surface of the convergence point P at infinity) and the back 606 of the notch are flat. The groove line 606 is parallel to the generatrix of the brush. This brush can be obtained by cutting its flat surface with a cylindrical brush. On the back 606.2 and the front of the notch B between 606.1 satisfies: 90 degrees2h in all cross-sections of the brush, and the B angle between the back 706.2 of the notch and the front 706 of the notch is constant along the axis of the core, and meets 90°Dongguan MHLAN makeup tool co.，ltd is recognized as one of the leading manufacturer of in China.Trust in us and make Dongguan MHLAN makeup tool co.，ltd your best foundation brush for full coverage supplier. Our products will bring more economic value to you.
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