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Basic causes of quality problems in brushes

Release time:

2021-12-23 15:47

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Basic causes of quality problems in brushes

1. Depilation and broken hair with brush. There are two main situations: single bundle shedding and partial shedding (broken) hair. Single-bundle hair removal is due to the poor firmness of the transplanted hair, which is mainly related to the size of the drill hole, the size of the hair transplantation, the depth, and the number of hair roots. Generally, it can be detected by the tensile test of a single bundle of hair; The dynamic balance of the force of the brush roller, the quality of the brush, the quality of the planting (pressing) hair (density, tilt, crushing, resin curing, etc.) are related. Through careful observation, the crux of the problem can be found

　　2. The brush filaments are planted at an angle. When embossing U-shaped metal strips, pay special attention to whether the brush filaments are smooth. If there is a cross tilt, the resistance of the brush roller in the reverse direction will increase greatly when the brush roller is running, and the filament is easily broken, which greatly reduces the service life of the brush roller.

　　3, the density of brush filament is small. In order to save the cost of using silk, some brush manufacturers need to increase the number of bristles per hole or the insufficient density of brush holes, resulting in sparse bristles on the brush roller, soft and weak bristles surface, low efficiency during grinding, and unknown users. Therefore, increase the back pressure or The speed is increased so that the brush filament is overloaded and the service life is greatly reduced.

　　4. Processing crushed brush filaments. When the brush filaments are damaged during hair transplanting or punching, their strength and tolerance are greatly affected, or the contact surface of the roots of the brush filaments is very sharp or rough, the tolerance of the brush filaments will also be reduced and the service life of the brush will be shortened.

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Quality requirements for brushes

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Basic causes of quality problems in brushes

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