The antibacterial agent used in PBT makeup brushes: From the spinning process, it endows the brush hairs with long-lasting cleanliness.
PBT (polybutylene terephthalate) makeup brush filaments have gained a significant position in the makeup brush market due to their excellent elasticity, chemical resistance, and soft texture. Similar to nylon brush filaments, PBT bristles continuously come into contact with sebum, keratin, makeup residue, and moisture during use, and the gaps between the bristles become a hidden place for bacteria to breed. Microorganisms such as Staphylococcus aureus and Escherichia coli colonize on the bristle surface, which not only affects the hygiene of the brush but also may cause discomfort upon contact with facial skin. The core value of the antibacterial agent used in PBT makeup brush filaments lies in embedding the antibacterial function into the fibers during the melt spinning stage, making the antibacterial ability an inherent property of the brush filaments rather than relying on easily lost surface treatments.
Why does PBT makeup brush filaments require a spinning-level antibacterial solution?
The production of PBT makeup brush filaments mainly relies on melt spinning, with processing temperatures typically ranging from 240 to 270 degrees Celsius. This process condition imposes three strict constraints on the Plan antibacterial agent: the temperature must cover the spinning temperature range; otherwise, the antibacterial components will decompose and fail during extrusion; the particle size must be fine and uniformly dispersed; and the compatibility with the PBT matrix must be good, otherwise it will affect the tensile strength and elasticity of the fibers.
The usage scenarios of makeup brush filaments further raise the selection threshold. The bristles directly contact the facial skin and the mucous membranes of the eyes, and the safety of the antibacterial agent cannot be compromised; the oil, alcohol, and powder components in makeup products may affect the stability of the antibacterial components; consumers' habit of regularly cleaning the brush requires a certain level of water-wash durability for antibacterial efficacy. Ordinary industrial-level antibacterial agents cannot simultaneously meet these requirements. PBT makeup brush filaments need a specialized antibacterial solution designed for the spinning process and makeup scenarios.
Dalian Tianwei PBT Makeup Brush Filaments' Antibacterial Solution: Technical Core
Dalian Tianwei Chemical Co., Ltd.'s spinning-level antibacterial solution covers PBT, PET, PA and other commonly used base materials for makeup brush filaments. It is based on the core technology of nano silver-zinc composite, and has been specifically designed in three dimensions: temperature resistance, processability, and antibacterial efficacy.
