Jiangsu Hengli Chemical Fibre Co., Ltd.

Jiangen Shen

Lili Wang

Hongwei Fan

Fangming Tang

Shanshui Wang

Zhengping Yuan

A method for preparing black cotton-like fibers is provided, using a DTY texturing process, wherein POY and FDY fibers containing carbon black are sequentially passed through a first yarn guide, a yarn guide roller, a tensioner, a first yarn feeding roller, pre-entangling, a second yarn feeding roller, a first deformation hot box, a cooling plate, a false twister, a third yarn feeding roller, a middle entangling device, a setting hot box, a setting yarn feeding roller, oiling, and winding to obtain a black cotton-like fiber; the first yarn guide is a yarn guide wheel; a tow contacts a groove bottom of the first yarn guide in the process of movement, driving the first yarn guide to rotate; and the tensioner is a magnetic tensioner.

Method for preparing black fibers

A type of wool-like polyester filament and preparing method thereof are disclosed. The preparing method is manufacturing filament from a modified polyester through a POY process and a successive DTY processes, wherein the modified polyester is the product of the esterification and the successive polycondensation reactions of evenly mixed terephthalic acid, 1,4-butanediol, fluorinated dicarboxylic acid, tert-butyl branched hexanediol and 2,5,6,6-tetramethyl-2,5-heptanediol. The obtained fiber has a dye uptake of 90.32-93.27% and a K/S value of 22.15-23.42 when dyed at 100&#xb0; C., and has an intrinsic viscosity drop of 17-20% when stored at 25&#xb0; C. and R.H. 65% for 60 months. This invention features a method with ease of application and a product with good dyeing and degradation performance.

Wool-like polyester filament and preparing method thereof

A type of feather-like polyester fiber and a preparing method thereof are disclosed. The preparing method is to manufacture filament from a modified polyester through a POY process with a four-fold flat spinneret and a successive DTY processes, wherein said modified polyester is the product of the esterification and the successive polycondensation reactions of evenly mixed terephthalic acid, ethylene glycol, main-chain silicated diol and fluorinated dicarboxylic acid, and the spinneret is the one set with four-fold flat shaped orifices. The obtained fiber has a dye uptake of 89.6-93.7% when dyed at 130&#xb0; C., and has an intrinsic viscosity drop of 13-20% when stored at 25&#xb0; C. and R.H. 65% for 60 months. This invention is simple to apply and features a product with good dyeing and degradation performance.

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Wujiang, China

Jiangen Shen