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Preparation method of black island pre-oriented yarn

A pre-oriented yarn and sea island technology, applied in the field of chemical fiber production, can solve the problem of not being able to dye deep black, and achieve the effect of eliminating the dyeing process, improving efficiency and saving costs

Inactive Publication Date: 2015-04-29
厦门翔鹭化纤股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a method for preparing black sea-island pre-oriented yarns, which overcomes the disadvantage that existing conventional sea-island fibers cannot be dyed dark black, and makes it have a deep black effect during spinning , which saves the dyeing process for subsequent processing and finishing, and has the characteristics of a more environmentally friendly and clean production process

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 black island pre-oriented yarn
  • Preparation method of black island pre-oriented yarn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Polyester chips (i.e. conventional polyester chips in the prior art) and black sea-island masterbatches (black sea-island masterbatches are made up of the following components by weight ratio: carbon powder with primary average particle diameter less than 30nm: 35wt%; polyethylene terephthalic acid Ethylene glycol ester: 55wt%; polyamide wax: 10wt%); after drying, the water content of the chip and the masterbatch is less than 30ppm, and the black sea-island masterbatch is evenly added to the conventional polyester chip through the masterbatch injection machine as the island Components, the addition of black sea-island masterbatch is 10wt% of the weight ratio of the island component, and then enters the screw extruder A, and is squeezed into the filter A and the metering pump A through the screw extruder; the alkali-soluble polyester is dried Finally, the water content of the slices is less than 30ppm, which enters the screw extruder B as the sea component, and enters the...

Embodiment 2

[0044] Conventional polyester chips and black sea-island masterbatch (black sea-island masterbatch is composed of the following weight ratio components: carbon powder with primary average particle size less than 30nm: 30wt%; polyethylene terephthalate: 65wt%; polyamide Wax: 5wt%); after drying, the water content of the chips and the masterbatch is less than 30ppm, and the black sea-island masterbatch is evenly added to the conventional polyester chip through the masterbatch injection machine as the island component, and the amount of the black sea-island masterbatch It is 12wt% of the island component weight ratio, then enters the screw extruder A, and enters the filter A and metering pump A through the extrusion of the screw extruder; after the alkali-soluble polyester is dried, the water content of the slices is less than 30ppm, used as sea group into the screw extruder B, through the screw extruder B into the filter B, the metering pump B; the island component and the sea co...

Embodiment 3

[0046]Conventional polyester chip and black sea-island masterbatch (black sea-island masterbatch is composed of the following weight ratio components: carbon powder with primary average particle size less than 30nm: 35wt%; polyethylene terephthalate: 50wt%; polyamide Wax: 15wt%); after drying, the water content of the chips and the masterbatch is less than 30ppm, and the black sea-island masterbatch is uniformly added to the conventional polyester chip through the masterbatch injection machine as the island component, and the amount of the black sea-island masterbatch It is 16wt% of island component weight ratio, enters screw extruder A then, enters filter A, metering pump A through screw extruder extruding; After alkali-soluble polyester is dried, slice water content is less than 30ppm, as sea group into the screw extruder B, through the screw extruder B into the filter B, the metering pump B; the island component and the sea component are metered into the sea-island spinning ...

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Abstract

The invention discloses a preparation method of a black island pre-oriented yarn. The method comprises the following process: adding black island master batch into a polyester chip to be used as an island component, adopting an alkaline soluble copolyester chip as a sea component, respectively drying the island component and the sea island, enabling the island component and the sea island to pass through a screw extruder, a filter, a metering pump and an island spinning component, then air cooling, oiling and winding to prepare the black island pre-oriented yarn; the weight percent of the black island master batch in the black island pre-oriented yarn is 10 percent to 20 percent; the weigh ratio of the island component to the sea component is (70-80): (30-20). By adopting the preparation method, the weaknesses that the existing conventional island fiber cannot be dyed in dark black color can be overcome, the black island pre-oriented yarn has a dark black effect in the spinning period, the dyeing step is omitted for the subsequent processing, and the method has characteristics that the production process is more environment-friendly and cleaner.

Description

technical field [0001] The invention belongs to the technical field of chemical fiber production, in particular to a method for preparing black island-in-the-sea pre-oriented yarns. Background technique [0002] Sea-island fiber is a kind of composite fiber. After post-processing and finishing, the fiber can be very fine chemical fiber. It is an ideal raw material for the production of high-grade clothing fabrics, decorative cloths, and high-grade wiping materials. Compared with ordinary fibers, the sea-island fiber monofilament has the characteristics of small linear density and high specific surface area, and the fabric has the characteristics of soft hand feeling and comfortable wearing. However, due to the low linear density and high specific surface area of ​​sea-island fiber, it has the defect of light dyeing. Even if the amount of dye is several times that of ordinary fiber, it is not easy to achieve a deep color effect. [0003] Patent application publication number...

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): D01D13/00D01D5/30D01F8/14C08L67/02C08L77/00C08K3/04
Inventor 郑铮刘龙敏吴铁城赵铁侠陈茶娇刘志麟
Owner 厦门翔鹭化纤股份有限公司
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