Elastic cotton-linen-like polyester fiber and preparation method thereof

A polyester fiber and cotton-like technology, which is applied in fiber treatment, fiber chemical characteristics, melt spinning, etc., can solve the problems of inability to balance moisture permeability and wrinkle resistance, and achieve excellent wrinkle resistance, good moisture permeability, and improved stability. Effect

CN107904682AActive Publication Date: 2018-04-13JIANGSU HENGLI CHEM FIBER
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-04-13

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Abstract

The invention relates to an elastic cotton-linen-like polyester fiber and a making method thereof. POY are made through polyester melt metering, composite spinneret extrusion, cooling, oiling and winding and are made into DTY, namely the elastic cotton-linen-like polyester fiber, through a yarn guiding tube, a network, heating and stretching, false twisting, thermal setting and winding formation,wherein a matting agent is dispersed in a polyester melt, and the composite spinneret is provided with spinneret orifices which are in two special shapes and have a certain relation in micro-void length, cross section area and cross section perimeter size. A bundle of made elastic cotton-linen-like polyester fiber contains round polyester DTY monofilaments and cross-shaped polyester DTY monofilaments, the crimp shrinkage rate of the elastic cotton-linen-like polyester fiber is 35.0+ / -5.0%, and the crimp stability is 80% or above. The method is simple and reasonable, and the made elastic cotton-linen-like polyester fiber has the advantages of high elasticity and wrinkle resistance and has a great popularization value.
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Description

technical field

[0001] The invention belongs to the field of fiber preparation, and relates to an elastic cotton-linen-like polyester fiber and a preparation method thereof. Background technique

[0002] Since the appearance of polyethylene terephthalate (PET) fiber, it has developed rapidly because of its excellent performance, and its output has become the crown of synthetic fiber in the world. Polyester fiber has a series of excellent properties such as high breaking strength, high elastic modulus, moderate resilience, excellent heat setting performance, good heat resistance and light resistance, acid resistance, alkali resistance and corrosion resistance, and the fabric prepared from it has wrinkle resistance. And crispness and other advantages, so polyester fiber is widely used in clothing and home textiles and other fields.

[0003] With the development of modern textile technology and the continuous improvement of people's living standards, people put forward higher ...

Examples

Embodiment 1

[0054] A preparation method of elastic cotton-linen-like polyester fiber, the steps are as follows:

[0055] (1) The polyester melt is measured, extruded through a composite spinneret, cooled, oiled and wound to obtain POY filaments. Matting agents are dispersed in the polyester melts, and the matting agents are amorphous titanium dioxide and The mixture of amorphous silicon dioxide, the content of matting agent in polyester is 1.25wt%, and the content of amorphous silicon dioxide in matting agent is 22.5wt%. The spinning process parameters of POY silk are as follows: Outlet temperature: 285°C; cooling air temperature: 22°C; winding speed: 2700m / min;

[0056] Among them, the composite spinneret is provided with cross-shaped spinneret holes and circular spinneret holes at the same time, and the ratio of the micropore length of the cross-shaped spinneret holes to the circular spinneret holes is equal to the ratio of the cross-shaped spinneret holes to the circular spinneret hole...

Embodiment 2

[0060] A preparation method of elastic cotton-linen-like polyester fiber, the steps are as follows:

[0061] (1) The polyester melt is measured, extruded through a composite spinneret, cooled, oiled and wound to obtain POY filaments. A matting agent is dispersed in the polyester melt, and the matting agent is calcium carbonate and amorphous The mixture of silicon dioxide, the content of matting agent in polyester is 1wt%, the content of amorphous silicon dioxide in matting agent is 15wt%, the spinning process parameter of POY silk is as follows: the temperature of extruding: 280°C; cooling air temperature: 20°C; winding speed: 2500m / min;

[0062] Among them, the composite spinneret is provided with cross-shaped spinneret holes and circular spinneret holes at the same time, and the ratio of the micropore length of the cross-shaped spinneret holes to the circular spinneret holes is equal to the ratio of the cross-shaped spinneret holes to the circular spinneret holes. The produ...

Embodiment 3

[0066] A preparation method of elastic cotton-linen-like polyester fiber, the steps are as follows:

[0067] (1) The polyester melt is measured, extruded through a composite spinneret, cooled, oiled and wound to obtain POY filaments. A matting agent is dispersed in the polyester melt, and the matting agent is calcium carbonate and amorphous The mixture of silicon dioxide, the content of matting agent in polyester is 1.5wt%, the content of amorphous silicon dioxide in matting agent is 30wt%, the spinning process parameter of POY silk is as follows: the temperature of extruding : 290°C; Cooling air temperature: 25°C; Winding speed: 3000m / min;

[0068] Among them, the composite spinneret is provided with cross-shaped spinneret holes and circular spinneret holes at the same time, and the ratio of the micropore length of the cross-shaped spinneret holes to the circular spinneret holes is equal to the ratio of the cross-shaped spinneret holes to the circular spinneret holes. The pr...