Two-component split type composite FDY fiber and preparation method thereof

A composite fiber and two-component technology, applied in the field of fiber spinning, can solve the problems of poor dyeability and harsh dyeing conditions of PET

Inactive Publication Date: 2010-09-29
XIAMEN HONGXIN SPECIAL FIBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing split-type FDY fibers are polyester/nylon split-type composite FDY fibers, that is, polyethylene terephthalate (PET)/polyamide (PA6) split-type composite FDY fibers, but due to poor dyeability of PET, Therefore

Method used

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  • Two-component split type composite FDY fiber and preparation method thereof
  • Two-component split type composite FDY fiber and preparation method thereof
  • Two-component split type composite FDY fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0041] Example 1

[0042] 1. Preparation of two-group lobed FDY fiber

[0043] Take 78 parts of polytrimethylene terephthalate slices and dry them at 140°C, then put them into the polyester spinning screw extruder to melt at 275°C; take 22 parts of polycaprolactam slices dried at 90°C and put them into polyamide spinning The screw extruder melts at 270℃;

[0044] The melt of the two screw extruders figure 2 The 8-split spinneret shown is extruded to obtain nascent fibers. The following examples are all used for extrusion molding of this spinneret to obtain 8-split nascent fibers. The nascent fibers are formed by the fiber skeleton part and filled in the The composition of the lobes between the fiber skeletons, in which the fiber skeleton is composed of polycaprolactam, and the fiber lobes are composed of polytrimethylene terephthalate;

[0045] Then, the nascent fiber was cooled and shaped by ring blowing through a cooling and blowing device at a cooling temperature of 23°C, and th...

Example

[0048] Example 2 to Example 4

[0049] 1. Preparation of two-group split sheet FDY fiber

[0050] The specific process parameters of this process in the above three embodiments are shown in Table 2:

[0051] The properties of the two-group split flake FDY fibers prepared in Examples 2 to 5 are measured, and are listed in Table 1.

[0052] 2. Preparation of two-component superfine fiber woven fabric

[0053] The steps in the above three embodiments are the same as those in the first embodiment.

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PUM

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Abstract

The invention provides a two-component split type composite FDY fiber which is characterized in that he two components in the two-component composite DTY fiber are a polyester component and a polyamide component, wherein the polyester component is selected from one or more of polytrimethylene terephthalate, polybutylene terephthalate and cation normal-pressure dyeable polyester. The invention also provides a preparation method for preparing the split type composite FDY fiber, which comprises the following steps: respectively melting the polyester component and the polyamide component, then carrying out extrusion molding through a spinneret plate, cooling, applying oil, drafting and winding to obtain the two-component split type composite FDY fiber. The composite FDY fiber and the two-component superfine fiber fabric which are prepared by the method have the characteristics of good dyeing property and soft texture.

Description

technical field [0001] The invention relates to the field of fiber spinning, in particular to a double-group split-sheet type composite FDY fiber and a preparation method thereof. Background technique [0002] Composite fiber refers to a chemical fiber made of two polymers, two or more polymers, or the same polymer with different properties through composite spinning, and contains two or more immiscible components in the cross section of the fiber. point. According to the structure, common composite fibers include side-by-side type, sheath-core type, island-in-the-sea type, split type, etc. [0003] The same single fiber cross-section of the two-group split-type composite fiber is divided into several partitions, and the two components are arranged alternately. According to the different arrangement methods, the split-type composite fiber can be divided into orange-shaped, rice-shaped, and gear type etc. The split-type composite fiber splits the two components from each o...

Claims

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Application Information

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IPC IPC(8): D01F8/14D01F8/12D01D5/088D01D5/096D01D5/098D01D5/28
Inventor 张飞跃蔡世镇李森
Owner XIAMEN HONGXIN SPECIAL FIBER CO LTD
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