Easy-to-dye terylene BCF and method for preparing same

Abstract

The invention relates to a chromophil terylene BCF and a preparation method thereof, which belong to the technical field of the terylene. The chromophil terylene BCF is characterized in that the terylene BCY is in a tri-leaflet shape which is also called as Y-shaped microcellular structure. The preparation method is characterized in that (1) the slice of raw terylene materials is pre-crystallized and dried by a dryer; (2) the slice of the raw terylene materials are melted by an extruder; (3) multifilament yarn which is in the tri-leaflet shape which is also called as the Y-shaped microcellular structure is sprayed by a tri-leaflet spinneret plate; (4) a tow is cooled to be formed into initial raw silk; (5) oil solution is applied to spinning; (6) the spinning is extended; (7) the spinning undergoes the process of bulking in a deformation box; (8) the spinning is cooled and curled; (9) the spinning undergoes the process of link making; (10) the spinning is rolled into a drum. The chromophil terylene BCF solves two problems that the current BCF has poor spinnability and is difficult to be dyed under normal temperature, provides newly-invented BCF fiber for manufacturing the suede of a blanket and creates conditions for manufacturing the blanket that has good spreadability, beautiful appearance and low manufacturing cost.

Description

technical field [0001] The invention belongs to the technical field of polyester, and in particular relates to an easily dyeable polyester BCF and a preparation method thereof. Background technique [0002] Traditional polypropylene BCF and nylon BCF are used as suede materials such as carpets, but due to high cost, poor elasticity, and low strength, they have increasingly lost their market advantages. [0003] At present, there are only several varieties of polyester filament yarn, stretched yarn and textured yarn, which are mainly used in clothing fabrics. Due to poor bulkiness, they cannot be used for carpet suede. [0004] Because polyester bulked filament is polyester BCF, the cost of raw materials is low, and the profit margin is large, but it has the problems of poor spinnability and difficult dyeing, so it cannot be used for carpet suede fiber so far. Contents of the invention [0005] The purpose of the present invention is to provide a kind of easily dyeable pol...

AI Technical Summary

Problems solved by technology

[0002] Traditional polypropylene BCF and nylon BCF are used as suede materials such as carpets. Due to high cost, poor elasticity and low strength, they have increasingly lost their market advantages.

[0003] At present, there are only several varieties of polyester filament yarn, stretched yarn and textured yarn, which are mainly used in clothing fabrics. Due to poor bulkiness, they cannot be used for carpet suede.

[0004] Because polyester bulked filament is polyester BCF, the cost of raw materials is low, and the profit margin is large, but it has the problems of poor spinnability and difficult dyeing, so it cannot be used for carpet suede fiber so far.

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