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发明公开
CN110747526A 尼龙BCF低卷曲纤维及其制备方法 无效 - 撤回

尼龙BCF低卷曲纤维及其制备方法
摘要：
本发明针公开了一种尼龙BCF低卷曲纤维的制备方法，该方法包括切片经过熔融挤出，纺丝，冷却降温，上油，牵伸，变形，冷却，打网络点，卷绕；其中牵伸过程中第一牵伸辊的温度为50～68℃，第二牵伸辊的温度为170～200℃；打网络点过程中控制网络器的气压为(4～6)KG，变形过程中变形空气压力为(4.5～5.5)KG。本发明的制备方法保证了变形过程中压力的稳定性，保证了连续稳定的生产过程，能够生产出高强力、高弹性、低卷曲、低网络点的合格纱线，能够满足市场的高端需求，实现了同类产品的国产化。
摘要（英）：

The invention discloses a preparation method of nylon BCF (bulk continuous filament) low-crimp fibers, which comprises the steps of carrying out melt extrusion on chips, spinning, cooling, oiling, drafting, deforming, cooling, intermingling and winding, wherein the temperature of a first drafting roller in the drafting process is 50-68 DEG C, the temperature of a second drafting roller is 170-200DEG C, air pressure of an interlacer is controlled to (4-6) KG in the intermingling process, and deformation air pressure is controlled to (4.5-5.5) KG in the deformation process. The preparation method disclosed by the invention ensures the stability of pressure in the deformation process, the continuous and stable production process is ensured, qualified yarns with high strength, high elasticity, low crimp and low intermingling degree can be produced, the high-end requirements of the market can be met, and the domestication of like products is achieved.

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