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Spun-dyed parallel composite elastic fiber

A technology of composite elastic fiber and pre-spinning coloring, which is applied in the direction of adding pigments to the spinning solution and conjugating synthetic polymer artificial filaments, etc., which can solve the problems of increased fineness unevenness, high processing costs, and labor-intensive and time-consuming processing. And other issues

Active Publication Date: 2014-08-13
HAINING XIN GAO FIBERS LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PTT / PET side-by-side composite elastic fibers have good elasticity and are suitable for textile dyeing processing conditions, but white side-by-side composite elastic filaments are only used in a small amount in fabrics, and it is not easy to dye the same color with other fibers in piece dyeing; Because there are differences in the coloring conditions and shrinkage conditions of the inside and the surface of the package, repeated rewinding and dyeing are required to achieve a basically uniform color and shrinkage rate, but color stripes on the fabric caused by uneven coloring cannot be completely ruled out. , and defects such as "lotus leaves" caused by different shrinkage rates
In addition, multiple times of rewinding and dyeing will result in labor-intensive and time-consuming processing. Usually, the processing cost is as high as 20,000 yuan / T, and the fineness of the PTT / PET side-by-side composite elastic yarn will become thicker and the unevenness of the fineness will increase.

Method used

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  • Spun-dyed parallel composite elastic fiber
  • Spun-dyed parallel composite elastic fiber
  • Spun-dyed parallel composite elastic fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of colored side-by-side composite elastic fiber before spinning has a side-by-side composite structure, the side-by-side composite elastic fiber has two components A and B, the A component is PTT, the B component is PET, A component:B component=40: 60 (mass ratio).

[0021] Color masterbatch: The color masterbatch in component A and B is composed of colorants, organic pigments with high light fastness and ester-soluble pigments with a particle size of less than 150nm, and the content of colorants in the color masterbatches is 35wt%, the color masterbatch used in the two components of A and B, the colorant formula is the same but the rheology of the carrier is different, and the melting point of the carrier is different.

[0022] PTT component: the carrier melting point of the masterbatch is 228°C, and the amount of the masterbatch is 3.0wt%;

[0023] PET component: The carrier melting point of the color masterbatch is 252°C, and the amount of the color masterbat...

Embodiment 2

[0029] A kind of colored side-by-side composite elastic fiber before spinning has a side-by-side composite structure, and the side-by-side composite elastic fiber has two components A and B, the A component is PTT, the B component is PET, A component:B component=30: 70 (mass ratio).

[0030] Color masterbatch: The color masterbatch in component A and B is composed of colorants, organic pigments with high light fastness and ester-soluble pigments with a particle size of less than 150nm, and the content of colorants in the color masterbatches is 30wt%, the color masterbatch used in the two components of A and B has the same colorant formula, but the rheology of the carrier is different, and the melting point of the carrier is different.

[0031] PTT component: the melting point of the carrier of the masterbatch is 228°C, and the amount of the masterbatch is 2.5wt%;

[0032] PET component: The carrier melting point of the color masterbatch is 252°C, and the amount of the color m...

Embodiment 3

[0037] A kind of colored side-by-side composite elastic fiber before spinning, has a side-by-side composite structure, the side-by-side composite elastic fiber has two components A and B, A component is PTT, B component is PET, A component:B component=50: 50 (mass ratio).

[0038] Color masterbatch: The color masterbatch in component A and B is composed of colorants, organic pigments with high light fastness and ester-soluble pigments with a particle size of less than 150nm, and the content of colorants in the color masterbatches is 40wt%, the color masterbatch used in the two components of A and B has the same colorant formula but the rheology of the carrier is different, and the melting point of the carrier is different.

[0039] PTT component: the carrier melting point of the masterbatch is 228°C, and the amount of the masterbatch is 2.0wt%;

[0040]PET component: the carrier melting point of the color masterbatch is 252°C, and the amount of the color masterbatch is 2.0wt%...

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Abstract

The invention relates to spun-dyed parallel composite elastic filament which is of a parallel composite structure, wherein the parallel composite structure is provided with two components, each component is one of PET (Polyethylene Terephthalate), PTT (Polytrimethylene Terephthalate), PA (Polyamide) and PBT (Polybutylene Terephthalate), the two component are different, and master batches containing a colorant are added to the two components; the parallel composite structure is double semicircular-shaped, dumbbell-shaped, peanut-shaped or runway-shaped uniform section; and preferably, the two components are PET and PTT. Because of shrinkage performance difference of PET and PTT, the fiber forms a helical structure along the length direction so as to form elasticity. The master batches are added quantitatively before spinning, and the filament color is determined according to the colorant formula in the master batches and the addition amount of the master batches, thus the fiber has final color required by the final product, and achieves high color fastness which cannot achieved by an after-dyeing manner.

Description

technical field [0001] The invention relates to a kind of pre-spinning colored side-by-side composite elastic fiber, which is especially suitable for making uniforms, outdoor textiles, automotive textiles, etc., which require particularly high color fastness to light and weather, and require good color fastness. Elastic deformation ability, elastic recovery rate, wrinkle resistance and shape retention and tight clothing, etc. It belongs to the technical field of textile functional filaments. Background technique [0002] Military and police uniforms and other uniforms require uniform colors and high color fastness. They can also maintain good color fastness under the conditions of sun exposure, wind and rain; and require elastic fibers to keep the shape of the clothing when worn. Well, it's crisp, wrinkle-resistant, close-fitting, and has good movement comfort. Automotive textiles and outdoor textiles have similar requirements. However, traditional elastic fibers such as ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/14D01F8/12D01F1/04
Inventor 施楣梧甘根娣裘越华肖红张同健朱国珍
Owner HAINING XIN GAO FIBERS LTD
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