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Preparation method of three-component composite fiber with special-shaped cross section

A special-shaped cross-section and composite fiber technology, which is applied in fiber processing, stretch spinning, and clustering of newly extruded filaments, etc., can solve the problems of high modulus of moisture-permeable special-shaped cross-section fibers, poor fabric feel, poor moisture conductivity, etc. , to achieve the effect of excellent moisture absorption and perspiration, excellent stability and improved compatibility

Active Publication Date: 2012-09-26
浙江双兔新材料有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of poor moisture conduction and moisture permeability of chemical fiber products and the problems of high fiber modulus, poor fabric hand feeling, difficult dyeing and poor comprehensive performance of single-component special-shaped cross-section, the present invention proposes a three-component special-shaped cross-section The preparation method of the composite fiber adopts the bonding property between the two components of the composite fiber prepared by the present invention to be greatly improved, to ensure that the two components are not separated from each other, to endow the composite fiber with more excellent stability, and to maintain the excellent stability of ordinary shaped fibers. It is a special new special-shaped fiber with moisture absorption and perspiration functions.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Preparation method of three-component composite fiber with special-shaped cross section
  • Preparation method of three-component composite fiber with special-shaped cross section
  • Preparation method of three-component composite fiber with special-shaped cross section

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown, the three components of CDP and ECDP polyester chips and CDP / ECDP copolymer are respectively melted 1 and then extruded through the metering pump 2 and enter the spinneret 3, such as Figure 4 As shown, the center of the spinneret hole 8 on the spinneret 3 is provided with a round hole 6, and three waist holes 7 are evenly distributed around the round hole, which are respectively A, B, and C, and are distributed in a trilobal shape, such as Figure 5 As shown, the length of the waist hole 7 is a=0.02mm, the width of the waist hole is b=0.01mm, the ratio of length to width is a:b=2:1, and the diameter of the round hole 6 is d which satisfies the following formula: d=2b, 0.02 mm, and finally formed after stretching 4 and winding 5. Among them, among the three waist holes A, B, and C, the CDP component corresponds to the waist hole 7 of A and B, and the ECDP component corresponds to the waist hole 7 of C; the CDP / ECDP copolymer corresponds to t...

Embodiment 2

[0028] Such as figure 1 As shown, the three components of PTT and PDT polyester chips and PTT / PDT blends are respectively melted 1 and then extruded through the metering pump 2, and then enter the spinneret 3, and the spinneret holes 8 on the spinneret 3 A round hole 6 is arranged in the center of the round hole, and three waist holes 7 are distributed around the round hole, which are respectively A, B, and C. The three waist holes are unevenly distributed and distributed in a Y shape, such as Figure 7 As shown, the length of the waist hole 7 is a=0.5mm, the width of the waist hole 7 is b=0.1mm, the ratio of length to width is a:b=5:1, and the diameter of the round hole 6 is d, satisfying the following formula: d=2b, 0.2mm, and finally formed after stretching 4 and winding 5. Among them, among the three waist holes 7 of A, B, and C, the PTT component corresponds to the waist hole 7 of A, and the PDT component corresponds to the waist holes 7 of B and C; the PTT / PDT blend co...

Embodiment 3

[0031] Such as figure 1 As shown, the three components of PET and PBT polyester chips and PET / PBT copolymer are respectively melted 1 and then extruded through the metering pump 2, and enter the spinneret 3, and the spinneret hole 8 on the spinneret 3 The center is provided with a round hole 6, and four waist holes 7 are evenly distributed around the round hole, which are respectively A, B, C, and D, and are in the shape of a cross, such as Figure 9 As shown, the length of the waist hole 7 is a=0.02mm, the width of the microhole is b=0.01mm, the aspect ratio is a:b=2:1, and the diameter d of the round hole 6 satisfies the following formula: d=2b, 0.02mm, and finally After stretching 4 and winding 5, it is formed. Among them, in the four waist holes 7 of A, B, C, and D, the PET component corresponds to the waist holes 7 of A and D, and the PBT component corresponds to the waist holes 7 of B and C; the PET / PBT copolymer corresponds to the round hole in the center 6.

[0032...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to the technical field of fiber preparation. The invention provides a preparation method of a three-component composite fiber with a special-shaped cross section, to solve problems that chemical fiber products have no good moisture conductivity or moisture permeability, and that single-component fibers with special-shaped cross sections are high in modulus, bad in fabric handles, difficult in dyeing, and not good in comprehensive properties. The preparation method comprises the following steps: three types of polyester slices are fused and extruded from a metering pump respectively, entera special-shaped spinneret, and are stretched and wound, thereby obtaining the multi-component composite fiber with the special-shaped cross section. Of the composite fiber prepared in the invention, the caking property between two components is greatly improved to ensure that two components are not separated. The composite fiber is a special, novel, and special-shaped fiber, which is endowed with better stability and maintains excellent functions of ordinary special-shaped fibers such as a moisture absorbable and breathable function.

Description

technical field [0001] The invention relates to the technical field of fiber preparation, in particular to a preparation method of a three-component special-shaped composite fiber. Background technique [0002] Polyester is the main industrial raw material, and its output accounts for more than 80% of the total output of chemical fiber. With the advancement of science and technology, it has been expanded to a considerable extent in various application fields. However, many factors such as high raw material prices, low product differentiation, and low product added value have caused the development bottleneck of the polyester industry. On the other hand, with the improvement of people's living standards, consumers have higher and higher requirements for clothing. On the premise of ensuring fashionable styles, fabrics are required to be comfortable, safe, healthy and environmentally friendly. As we all know, chemical fiber products are easy to wash and durable, but their poor...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/253D01D5/28D01D5/12D01D7/00
Inventor 徐锦龙王华平王朝生李建武张雯周碧辉
Owner 浙江双兔新材料有限公司
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