MANUFACTURE METHOD AND PRODUCT FOR P-ARAMID CRIMP

PURPOSE: Crimp for p-aramid spinning is provided to have strength of 18g/d or more changing into a shape with a wavy pattern by controlling a crimp form of a p-aramid elongated fiber. CONSTITUTION: A crimp forming method of p-aramid spinning comprises a first process which stabilizes a property by making p-aramid filament tow pass through multistep draw frame; and a second process which forms crimp with gentle curves by making the p-aramid filament tow pass through a crimping apparatus. The crimping apparatus comprises an upper roller, a lower roller and a crimper blade formed at one side of the upper roller and the lower roller. The crimper blade comprises an upper blade and a lower blade which are arranged symmetrically and is heated to 220-270 degreeC. A pressure ranged 1.0-2.0psi is applied on the upper blade and the lower blade and the p-aramid filament tow is heated and compressed passing between the upper blade and the lower blade. [Reference numerals] (AA) Heating chamber; (S1) Multistage link; (S2) Crimp device passage; (SA) Tow formation washing; (SB) Soaking in emulsion concentrate