涡流纺前牵伸胶辊的表面处理  

The Surface Treatment of the Front Drafting Cots for Vortex Spinning

作　　者：陈建石 

机构地区：[1]宏扬控股集团有限公司,杭州311245

出　　处：《纺织器材》2017年第2期37-40,共4页Textile Accessories

摘　　要：针对涡流纺纺纱速度快、无导纱动程、前牵伸胶辊应耐磨等要求,分析BGSLMB系统磨砺参数和磨砺后不同表面处理后前胶辊表面粗糙度的变化,以国产JAZ73A型、SHA75B型和J490SA型前牵伸胶辊为例,对比不同表面处理方法在涡流纺不同品种上的试纺结果;结果表明:经四氟涂料处理的牵伸胶辊能有效提高纺纱质量和生产效率,在粘胶及其色纺品种上,其回磨周期较原表面处理胶辊延长约1个月。指出:胶辊磨砺参数和表面处理方法应结合生产实际灵活选择;纯粘胶及其色纺产品,聚氨酯胶辊首选四氟涂料处理方法;涤纶及其混纺、腈纶及其混纺等产品,首选A、B双组分普通涂料处理的胶辊,表面粗糙度Ra值控制在0.85μm;丁腈胶辊、聚氨酯胶辊上涂料前应在烘房(烘箱)预热约30min,使其表面温度达到45℃~60℃;聚氨酯胶辊对含5%以上涤纶的混纺和纯涤纺不适用,对含5%以下涤纶的混纺应谨慎使用,对某些异形纤维的混纺生产效果较好。As to the fact that the vortex spinning speed is high without guide motion, and that the front drafting cots should be of wear-resistant,analysis is clone to the BGSLMB system parameters and changes of roughness of the cots before and after various surface treatment.Sampling the domestic cots JAZ73A, SHA75B and J490SA, the test results of different spinning varieties with cots of varieties surface treatments are found in different vortex spinning.The results show that the PTFE coated drafting cots improve yarn quality and production efficiency while in the viscose spinning color varieties, the grinding cycle is longer than that of the conven- tional surface treatment about 1 months.It is pointed out that cot grinding parameters and surface processing methods Should be selected considering actual production.In case of pure viscose or color spinning products,polyurethane cots should he PTFE treated as first priority.In case of polyester fiber or its blended, acrylic fiber or its blended products, cots should be coated with A/B components with surface roughness Ra within 0.85 μm. For the cots of polyurethane or cots of NBR,it is recommend that the cot products should be conditioned in the oven for about 30 min till the surface temperature reaching 45 ℃ to 60℃.It is noted that polyurethane cots are not applicable for polyester fiber or blends containing more than 5% polyester fiber.Prudent use of cots when spinning polyester fiber blend with content less than 5% polyester fiber is suggested.The product is of good effect in spinning of certain blended profiled fiber production.

关 键 词：涡流纺 前牵伸胶辊 磨砺参数 表面粗糙度 四氟涂料 紫外线光照 聚氨酯胶辊 

分 类 号：TS103.823[轻工技术与工程—纺织工程]