Toothbrush
A method of manufacturing a toothbrush comprises providing an integral head mold configured to simultaneously form bristles and head board in one injection molding process, heating head molding material to a predetermined temperature, filling the integral head mold with the head molding material in an injection molding machine, applying pressure to the integral head mold for a predetermined period and applying a cooling process to the integral head mold to produce a molded integral head. The molded integral head includes bristles molded on a head board.
1. A method of manufacturing a toothbrush, the method comprising:
providing an integral head mold configured to simultaneously form bristles and a head board in one injection molding process;
heating head molding material in an injection molding machine to a predetermined temperature to melt the head molding material;
filling the integral head mold with the melted head molding material;
applying a holding pressure with use of the injection molding machine to the integral head mold for a predetermined period;
applying a cooling process using water to the integral head mold to produce a molded integral head,
wherein the molded integral head includes a plurality of individually spaced apart bristles that are integrated on the head board;
providing a handle mold;
heating handle molding material to a predetermined temperature;
filling the handle mold with the handle molding material;
applying pressure to the handle mold for a predetermined period; and
applying a cooling process to the handle mold to produce a molded handle.
2. The method of claim 1 , further comprising assembling the molded handle to the molded integral head to produce a two-piece toothbrush.
3. The method of claim 1 , further comprising:
placing the molded handle in a space of the integral head mold; and
overmolding the head molding material to the molded handle to produce a one-piece toothbrush.
4. The method of claim 1 , further comprising:
placing the molded integral head in a space of the handle mold; and
overmolding the handle molding material to the molded integral head to produce a one-piece toothbrush.
5. The method of claim 1 , further comprising adding nanotechnology antivirus additives into the head molding material.
6. A method of manufacturing a toothbrush, the method comprising:
providing an integral head mold configured to simultaneously form bristles and a head board in one injection molding process;
heating head molding material in an injection molding machine to a predetermined temperature to melt the head molding material;
filling the integral head mold with the melted head molding material;
applying a holding pressure with use of the injection molding machine to the integral head mold for a predetermined period; and
applying a cooling process using water to the integral head mold to produce a molded integral head, wherein the molded integral head includes a plurality of individually spaced apart bristles that are integrated on the head board;
wherein the bristles and the head board are a single part having material continuity and wherein the bristles and the head board are formed in a one-piece construction;
providing a handle mold;
heating handle molding material to a predetermined temperature;
filling the handle mold with the handle molding material;
applying pressure to the handle mold for a predetermined period; and
applying a cooling process to the handle mold to produce a molded handle.