A bio-based elastic short fiber two-component composite yarn spinning device and process

Through the bio-based elastic staple fiber two-component composite yarn spinning device, using the spiral guide groove and inclined spinneret design, combined with staggered stirring blades and heating and insulation, the problems of overpressure and low efficiency in ultrafine denier fiber production are solved, and efficient and stable PTT/PET mixing and yarn production is achieved.

CN116732624BActive Publication Date: 2025-10-14ANHUI HENGTENG NEW MATERIALS GRP CO LTD
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Patent Information

Application Number
CN202310773284.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-06-28
Publication Date
2025-10-14
Estimated Expiration
2043-06-28

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Abstract

The application provides a bio-based elastic short fiber bicomponent composite filament spinning device and process, comprising a spinning structure, which comprises a guide pipe, a first placing bin is arranged in the guide pipe, a spiral guide groove is formed in the inner wall of the first placing bin, a second placing bin is arranged in the middle of the first placing bin, and an annular clamping ring is arranged on the inner wall of the first placing bin and the second placing bin. The first spinning hole and the second spinning hole are designed to be inclined, so that the pressure of the mixture is uniformly ensured, the flow rates of PTT and PET are consistent, the inside of the spinning structure is arranged to be arc-shaped, the flow of the mixture in the spinning structure has no dead angle, the residence time is also highly consistent, a large capacity hole number is realized, the effect is good when bicomponent composite filaments are produced, the technical problem of low production efficiency due to small capacity is effectively solved, the production efficiency is high, and the cost is controllable.
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Citation Information

Patent Citations

  • Polyester and nylon production equipment and process

    CN111748859A

  • Production device for producing cable stretch yarn by utilizing PTT (polytrimethylene terephthalate) and PET (polyethylene terephthalate)

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  • Parallel spinneret plate for composite spinning

    CN209194109U