一种Lyocell纤维的生产方法

By adjusting the process parameters in the Lyocell fiber production process, the problems of numerous broken ends and high defect rate in the production of fibers with a fineness of less than 1.1 dtex were solved, and high-quality production of 0.9–1.1 dtex Lyocell fibers was achieved.

CN119859859BActive Publication Date: 2026-07-17SATERI (NANTONG) FIBER CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SATERI (NANTONG) FIBER CO LTD
Filing Date
2025-01-14
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing Lyocell fiber production processes have difficulty consistently producing fibers with a fineness of less than 1.1 dtex, resulting in quality problems such as frequent breakage and high defect rates.

Method used

By adjusting multiple process parameters in the Lyocell fiber production process, including the distance between the spinneret and the spinning bath, and the coordination of wind direction, temperature, humidity, and wind speed, the spinning process is optimized by ensuring that the spinneret exit temperature and wind parameters meet specific relationships, controlling the viscosity of the spinning solution and the methyl cellulose content.

Benefits of technology

It significantly reduced the defect content of 0.9–1.1 dtex Lyocell fibers and improved product quality stability.

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Abstract

本发明属于化纤领域,尤其涉及一种Lyocell纤维的生产方法,包括以下步骤:a)Lyocell纤维纺丝胶液经过过滤器后进入纺丝机台,通过喷丝板出丝;b)喷丝板出的丝束进入纺丝浴中固化成型,得到Lyocell纤维;所述喷丝板到纺丝浴之间设置有风场,风场的风向与喷丝板平行;所述喷丝板的出丝温度与风场的温度、湿度和风速之间满足以下要求:H=[(2T1‑100)×T2 / 100]×[(T2‑10) / 10×(W / 100)+V / h],4.5≤H≤10。本发明提供的生产方法通过对Lyocell纤维生产过程中的多个工艺参数进行综合调整,显著降低了0.9~1.1dtex Lyocell纤维的产品疵点。
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