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Draw-texturing sea-island filament and production process thereof

A production process and technology of sea-island silk, which is applied in rayon manufacturing, filament/thread forming, conductive/antistatic filament manufacturing, etc. Improve the effect of antistatic effect and comprehensive performance

Active Publication Date: 2021-09-21
杭州惠丰化纤有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned related technologies, the inventor believes that during the preparation process of sea-island composite yarn, static electricity will be generated after friction between fibers and fibers, fibers and machines. , so that the sea-island silk has problems such as thread divergence, wool, and broken ends during the production process, and the overall antistatic performance of the sea-island silk is not good.

Method used

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  • Draw-texturing sea-island filament and production process thereof
  • Draw-texturing sea-island filament and production process thereof
  • Draw-texturing sea-island filament and production process thereof

Examples

Experimental program
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preparation example Construction

[0051] Wherein, the preparation method of the oil agent comprises the following steps: mixing and stirring paraffin oil, rosin, sodium humate and dodecyl dimethyl betaine evenly.

[0052] Wherein, the winding speed of winding in step (3) is 3400m / min.

[0053] Preferably, the COPET chip is an alkali-soluble polyester chip with a water content of 0.6%, a melting point of 240° C., an intrinsic viscosity of 0.65 dL / g, and a terminal group of 40 mol / t.

[0054] Preferably, the average particle diameter of the polytetrafluoroethylene fibers is 400D.

[0055] Preferably, the model of the cerium oxide nanoparticle dispersion is NANOBYK-3810, the nanoparticle content is 18%, and the particle size is D50nm.

[0056] Preferably, the purity of triethyl(2-hydroxyethyl)ammonium chloride is 98%, and the CAS number is 152-22-7.

[0057] Preferably, the solid content of the water-based polyester resin is 75%.

[0058] Preferably, the waterborne polyurethane resin has a solid content of 45%...

Embodiment 1

[0075] In this embodiment, elastic sea-island silk is made of the following raw materials: 70kg of PTT slices, 30kg of COPET slices, 30kg of polytetrafluoroethylene fibers, 5kg of cerium oxide nanoparticle dispersions, and 10kg of modified antistatic agents. The electrostatic agent is made from triethyl (2-hydroxyethyl) ammonium chloride through water-based resin and cross-linking agent. The mass ratio of triethyl (2-hydroxyethyl) ammonium chloride, water-based resin and cross-linking agent It is 10:5:6, the water-based resin is composed of water-based polyester resin and water-based polyurethane resin in a mass ratio of 1:1, and the cross-linking agent is composed of poly(propylene glycol) diglycidyl ether, 1,6-hexanediol diglycidyl ether Composition by mass ratio 1:1.

[0076] The production process of the present embodiment adding elastic island-in-the-sea silk comprises the following steps:

[0077] (1) Crystallize the PTT chip at 155°C, then add polytetrafluoroethylene f...

Embodiment 2-5

[0083] Examples 2-5 respectively provide textured island-in-the-sea yarns with different ratios of raw material components. The ratio of raw material components of the textured island-in-the-sea yarns corresponding to each embodiment is shown in Table 2, and the unit of raw material ratio is kg.

[0084] Table 2 embodiment 1-5 raw material ratio

[0085] raw material Example 1 Example 2 Example 3 Example 4 Example 5 PTT slice 70 80 75 74 76 COPET slice 30 40 35 34 36 PTFE fiber 30 40 35 35 35 Cerium Oxide Nanoparticle Dispersion 5 10 8 8 8 Modified antistatic agent 10 20 15 14 16 Paraffin oil 9 15 12 12 12 rosin 10 20 15 15 15 humic acid 16 20 18 18 18 Lauryl dimethyl betaine 6 8 7 7 7

[0086] The difference between Examples 2-5 and Example 1 lies in that the raw material ratio of each component of the textured island-in-the-sea yarn is different, and the others are...

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Abstract

The invention relates to the technical field of sea-island filament production, and particularly discloses a draw-texturing sea-island filament and a production process thereof. The draw-texturing sea-island filament provided by the invention is mainly prepared from the following raw materials in parts by weight: PTT slices, COPET slices, polytetrafluoroethylene fibers, cerium oxide nanoparticle dispersions and a modified antistatic agent. The production process of the draw-texturing sea-island filament provided by the invention comprises the following steps of (1) adding polytetrafluoroethylene fibers, a cerium oxide nanoparticle dispersion and a modified antistatic agent into the PTT slices for drying and melt extrusion, and adjusting the intrinsic viscosity of PTT through a melt intrinsic viscosity adjusting device to obtain a mixed PTT melt; (2) carrying out melt extrusion on the COPET slices to obtain a COPET melt; and (3) mixing the PTT melt and the COPET melt, spinning, cooling, winding and forming to obtain the draw-texturing sea-island filament. The draw-texturing sea-island filament provided by the invention is relatively good in antistatic performance and crimp contraction property.

Description

technical field [0001] The present application relates to the technical field of island-in-the-sea yarn production, more specifically, it relates to a stretched island-in-the-sea yarn and its production process. Background technique [0002] Sea-island fiber is a kind of polymer dispersed in another polymer. The dispersed phase in the fiber cross-section is in the state of "island", while the matrix is ​​equivalent to "sea". From the cross-section of the fiber, it is a kind of composition with fine and The dispersed state is surrounded by another composition, as if the fibers of many islands in the sea. [0003] Its "island" and "sea" components are continuous, dense and evenly distributed in the axial direction of the fiber. In the production process, the island-in-the-sea fiber has the fineness of conventional fibers, but the "sea" component is melted with a solvent, and a bundle of superfine fiber bundles can be obtained. [0004] Due to its natural advantages, the sea-...

Claims

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Application Information

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IPC IPC(8): D01F8/14D01F8/10D01F1/09D01F1/10D01F11/08D01F11/06D01D5/36
CPCD01F8/14D01F8/10D01F1/09D01F1/10D01F11/08D01F11/06D01D5/36
Inventor 周小华陈满元王世建
Owner 杭州惠丰化纤有限公司
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