Preparation method of high strength polypropylene ribbon-like filament

Application Number: 00107656
Application Date: 2000.05.24
Publication Number: 1272559
Publication Date: 2000.11.08
Priority Information:
International: D01D5/253;D01F6/06;D01F6/46
Applicant(s) Name: Research Inst. of Chemistry, Chinese Academy of Sciences
Inventor(s) Name: Qu Liangwei;Hu Xianbo;Zhao Ying
Patent Agency Code: 00000
Patent Agent:
Abstract A preparation method of high-strength polypropylene ribbon-like filament includes the following steps: drying polypropylene resin composite, spiral lobe melt extrusion, cooling to obtain primary film, cutting the film into primary ribbon-like filament whose width is 3-10 mm, hot drawing, heat-forming, and coiling so as to obtain the ribbon-like filament finished product whose width is 2-6 mm and thickness is 15-60 micrometers. Said invented product is stable in size and excellent in performance, its single-filament breaking strength is 6.0-7.0 g/d, titer is 300-900 dtex, and extension at breakage is less than 40%.