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High-strength FDY polyester filament yarn

A polyester filament, high-strength technology, applied in the direction of filament forming treatment, filament/thread forming, single-component polyester artificial filament, etc., can solve the problem that the water cooling operation is not direct and fast, and the abrasive cannot be fully obtained Cooling and other issues, to achieve the effect of precise and stable rotary grinding action, rapid cooling effect, and large structural strength

Pending Publication Date: 2022-02-15
福建经纬新纤科技实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The biggest defect of the grinding production device in this utility model patent is that the water-cooling structure is on the outside of the barrel, so the water-cooling operation is not direct and fast enough, and the grinding material in the center of the barrel cannot be fully cooled

Method used

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  • High-strength FDY polyester filament yarn
  • High-strength FDY polyester filament yarn
  • High-strength FDY polyester filament yarn

Examples

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Embodiment

[0035] Example: as attached Figure 1-6 As shown, a high-strength FDY polyester filament, the polyester melt includes a strength filler, and the strength filler is any one or a mixture of glass powder or silicon micropowder.

[0036] In this embodiment, the glass powder or silicon micropowder itself is a common hardness filler. After adding an appropriate amount, the strength of the FDY polyester filament in the present invention can reach 5.0-6.0 CN / dtex. If the strength filler is changed to silicon carbide with higher hardness, etc., the final filament strength should be further improved, but the overall economic benefits are not as good as the present invention.

[0037] In the stretching and spinning process of the FDY polyester filament: the spinning temperature is 260-280°C, the draw ratio is 1.6-2.0 times, the heat setting temperature is 120-130°C, and the winding tension is 2.0-2.3cN.

[0038] In this embodiment, compared with the ordinary FDY polyester filament produ...

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Abstract

The invention belongs to the technical field of chemical fibers and production equipment thereof, and particularly relates to a high-strength FDY (Fully Drawn Yarn) polyester filament yarn, which can be prepared by adding glass powder and / or silica powder into a polyester molten material and matching with proper stretching ratio and winding tension. In addition, the invention further relates to a middle water-cooled ball mill which structurally comprises a hollow clamping ring unit, a hollow water inlet ring unit, a water-cooled pipe, a hollow communicating ring unit and a hollow water outlet ring unit, and on the basis that effective grinding according to needs is guaranteed, the middle water-cooled ball mill further has the beneficial effects of overall rapid and comprehensive water cooling of equipment.

Description

technical field [0001] The invention belongs to the technical field of chemical fibers and production equipment thereof, and in particular relates to a high-strength FDY polyester filament. Background technique [0002] FDY polyester filament refers to a long fiber whose main material is polyester and which is stretched during the spinning process. Its length can reach several kilometers or even tens of thousands of meters. Its general production steps include beating, esterification, polycondensation, and stretching and spinning in sequence. [0003] For example, the Chinese invention patent with the patent publication number CN106884220A and the publication date of 2017.06.23 discloses a FDY high-strength polyester filament and its processing method, wherein the raw material of the polyester filament is newly added with nano-silicon carbide powder, for higher filament strength. [0004] However, the nano-silicon carbide powder used in this invention patent is too expensi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F1/10D01F6/92D01D1/00D01D5/098D01D7/00B02C17/18
CPCD01F1/10D01F6/92D01D1/00D01D5/098D01D7/00B02C17/1815D10B2401/063
Inventor 林景
Owner 福建经纬新纤科技实业有限公司