Filament for cosmetic purpose, cosmetic bristle material using filament and cosmetic brush using bristle material

• Main Authors: NAKAMURA KENJI, NAKAMURA KOJI
• Format: Patent
• Language: Chinese; English
• Published: 25.12.2018
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; BRUSHES; BRUSHWARE; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HUMAN NECESSITIES; LAUNDERING; MANUFACTURE OF BRUSHES; NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TEXTILES; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS

The invention is intended to acquire a polyester resin filament for cosmetic brushes, which has multiple protrusions on the whole surface of the filament. The filament herein is characterized in thatpolyester resin is of polytrimethylene terephthalate and/or polybutylene terephthalate; the polyester resin contains, by weight, 0.3-1.0% of glass particles serving as inorganic particle and having anaverage particle size of 1-2 mu m; the glass particles has heat conductivity 5-7 times that of the polyester resin; protrusions of the glass particles coated by the polyester resin are formed on thewhole surface of the filament. 为了得到在聚酯类树脂单丝的整个表面形成有多数的凸部的化妆用刷的单丝，本发明的化妆用单丝的特征在于，聚酯类树脂为聚对苯二甲酸丙二醇酯及/或聚对苯二甲酸丁二醇酯，在该聚酯类树脂中含有0.3～1.0重量％的作为所述无机粒子的平均粒径1～2μm的玻璃粒子，该玻璃粒子的热导率为上述树脂的5～7倍的范围，在化妆用单丝的整个表面形成被上述树脂包覆的玻璃粒子的凸部。