Method for manufacturing brush bodies for tooth brushes

A method for manufacturing a brush body for a tooth brush by injection moulding, the brush body comprising at least two components, the method comprising the steps of:

• forming at least one first injection moulding piece of a first component by injecting the first component into a first mould comprising at least two mould parts;
• securing the first injection moulding piece to a transfer part, which is provided between the mould parts and forms a portion of a cavity of the first mould, by an activatable securing mechanism before the first injection moulding piece is pushed out of the cavity of the first mould;
• transferring the first injection moulding piece to a second mould, also comprising at least two mould parts, by the transfer part while keeping the first injection moulding piece secured to the transfer part by the activatable securing mechanism during at least part of the transferring to the second mould;
• and
• forming at least one second injection moulding piece by providing the first injection moulding piece in the second mould and injecting a second component into the second mould on the first injection moulding piece.

A method for manufacturing a brush body for a tooth brush by injection moulding, the brush body comprising at least two components, the method comprising the steps of:

• forming at least one first injection moulding piece of a first component;
• forming holes in the first injection moulding piece which are adapted to have bristles fixed therein;
• and
• forming at least one second injection moulding piece by providing the first injection moulding piece in a mould and injecting a second component into the mould on the first injection moulding piece;
• wherein, during the forming of the second injection moulding piece, a series of pins is brought at least partially into at least a number of the holes so that the holes remain open and are supported against deformation.