丝胶用于毛纱上浆的探索

概述了毛纱上浆的常用方法及其对浆料的要求,从水溶性、粘度、粘附力等方面详细地分析了丝胶对毛纱上浆的优势,探讨纯丝胶上浆存在的问题,设计出丝胶复配浆料的配方。     

竹纤维纯纺纱的上浆探讨

从减少PVA用量出发，对14．58tex竹纤纱进行6种浆料配方的对比上浆实验，分别测定各配方的浆膜、浆液性能和上浆纱的浆纱质量，从中优选出了较为合理的浆料配方。不仅能满足织造要求，同时还符合环保要求。     

丝胶用于毛纱上浆的浆料配方分析

分析了丝胶用于毛纱上浆的可行性和局限性。通过在浆料配方中加入助剂的方法来改善丝胶的上浆性能,并测试了聚丙烯酸甲酯、聚丙烯酰胺、二甲基硅油等试剂用量的变化对上浆性能的影响。依据实验结果确定出毛纱上浆的浆料配方如下:主浆料为75%丝胶、25%聚丙烯酸甲酯;助剂分别为5%聚丙烯酰胺、3%二甲基硅油、0.3%渗透剂JFC。采用此浆料配方对毛纱进行上浆实验和浆纱性能测试。实验结果表明:浆纱的断裂强力、断裂伸长率、增磨率和毛羽降低率等指标都得到了显著的提高。浆料配方合理,对毛纱上浆效果良好。     

纯苎麻纱浆料选配及上浆工艺要求的探讨

分析了苎麻纤维的化学及机械物理性能 ,阐述了浆料配方的依据 ,提出了苎麻纱的上浆要求及上浆工艺路线。     

纯Coolmax纱上浆工艺的研究

介绍了纯Coolmax纱的结构特点、性能及上浆要求。通过选择合适的浆料配方、制定优化的上浆工艺,较好地解决了该类纱上浆难的问题,并实现了完全无PVA上浆。     

纯棉细号高密紧密纱织物无PVA上浆体会

探讨纯棉细号高密紧密纱织物无PVA上浆工艺.分析了紧密纱上浆的要点,对比了含PVA浆料配方与无PVA浆料配方的浆液与浆膜性能,对紧密纱进行了上浆试验.试验证明,通过合理设置上浆工艺,保证浆纱毛羽、强力及伸长处于较佳状态,可以实现纯棉细号高密紧密纱织物的无PVA上浆.     

纯Coolmax纱上浆工艺研究

介绍了纯Coolmax纱的结构特点、性能及上浆要求，通过选择合适的浆料配方、制定优化的上浆工艺较好地解决了该纱上浆难、退浆难的问题，并实现了完全无PVA上浆。     

马来酸酐变性淀粉用于苎麻纱常温上浆的研究

探讨一种新型马来酸酐变性淀粉浆料应用于苎麻纱常温上浆的可行性。通过改变马来酸酐变性淀粉在浆料配方中的比例,调制了几种不同浆液,然后对其浆液性能进行测试,并与工厂常用配方浆料调制的高温浆液进行浆纱性能对比。结果表明:马来酸酐变性淀粉浆料能够使浆液温度在25℃时仍具有较好的黏附性能及一定的黏度稳定性,且基本达到苎麻纱上浆性能要求。认为:马来酸酐变性淀粉浆料可以应用于苎麻纱常温上浆。     

涡流纱无PVA上浆工艺探讨

探讨涡流纱无PVA浆纱工艺。对比分析了相同细度的涡流纱与环锭纱成纱指标,探讨了涡流纱的结构特点与上浆要求,以粘胶涡流纱和纯涤涡流纱为例,对其浆料配方和浆纱工艺进行了优选。实践证明:涡流纱上浆应选择渗透性好、黏着力强、浆膜强力适中的浆料,并采用"低黏度、中压力、高车速"的上浆工艺。认为:涡流纱的浆纱成本较低,且利于实现无PVA上浆,有利于提高织机效率。     

防羽布经纱上浆实践

为提高防羽布经纱上浆质量,根据特细号纱上浆重点是通过浸透以增加强力并应兼顾被覆的特点,对CJ 9.7 tex纱上浆的浆料配方进行了优化,并对浆液、浆膜、浆纱性能进行了测试分析.结果表明:对特细号纱上浆,采用酯化淀粉与CP-L以适当比例混合,并适量加入丙烯酸类浆料,浆液浸透与被覆均匀,浆纱强力提高,满足了防羽布的织造要求.     

Effect of nozzle size on texturing performance: comparison between air-jet and steam-jet texturing

The objectives of this research work were to investigate the use of steam in order to replace air in the production of spun-like textured yarn and to investigate the optimum nozzle size for steam-jet textured yarn for the application of sewing thread. An existing air-jet texturing machine was modified to supply either air or steam to the texturing nozzle. Using four texturing nozzles, both air-jet and steam-jet textured yarns were manufactured. The effect of nozzle size on process and yarn parameters has been studied and compared with air-jet textured yarns. The results show that spun-like textured yarn manufactured using steam has lower loop instability and higher tensile properties than air at comparable fluid pressures. SEM image analysis shows that the entangled structure of the steam-jet textured yarns is similar to air-jet textured yarns. Further, sewability results show that steam-jet textured yarns are suitable to manufacture sewing threads.     

Stearns-Noechel模型在天然彩色棉混色中的应用

为提高天然彩色棉混色织物的设计效率,采用Datacolor SF600+测试不同比例混合的天然彩色棉散纤维团、混纺纱及其交织物的颜色值;基于Stearns-Noechel模型对混合散纤维团,混纺纱和交织色块进行配色预测,并用CIEDE2000色差公式计算其与实测颜色的色差,从而优化混合纤维团、混纺纱及交织物色块的S-N模型参数,其中参数M的优化值分别为0.096,0.128和0.01,对应色差分别为1.72,3.40和4.90CIELab单位,从而建立本实验条件下的纤维、纱线、织物间反射率的预测模型。     

Coolmax仿牛仔面料

将Coolmax用作棉涤仿牛仔面料的纬纱,探讨了碱处理时间对纤维外观形态、纤度、断裂强力、热性能、吸湿透气快干性,以及染色性能的影响,并与普通涤纶纤维作纬纱的面料进行比较.结果表明,经碱减量处理后,面料的吸湿排汗性能、染深性和导电性增加;碱减量时间以35～60 min为宜,以确保纤维一定的纤度和断裂强力;含Coolmax纤维的仿牛仔面料,其成品定形温度应比含普通涤纶仿牛仔面料低5～10℃.     

不锈钢纤维/磁性涤纶纤维织物电磁屏蔽性能研究

采用磁性纤维混纺纱、不锈钢纤维混纺纱,设计了4种织物,对其电磁屏蔽性能进行了测试和分析。结果表明:组合使用两种纱线的织物其电磁屏蔽性能相比单一使用这两种纱线的织物电磁屏蔽性能好,并以磁性纤维混纺纱和不锈钢纤维混纺纱按1∶1米通方式设计织造的织物屏蔽性能最佳。     

棉/牛奶蛋白纤维混纺纱线同浴染色技术

针对棉和牛奶蛋白纤维的染色性能差异,讨论染料、防染剂、pH值、染色温度和保温时间等工艺因素对棉/牛奶蛋白纤维混纺纱线同浴染色的影响。通过正交试验分析确定棉/牛奶蛋白纤维混纺纱线活性染料同浴染色的最佳工艺。结果表明：选择Red CN-7B、Blue CN-BL和Yellow CN-603三原色染料,在染色温度为70°C、保温时间为40 min、pH值为8、防染剂质量浓度为0.8g/L的工艺条件下对棉/牛奶蛋白纤维纱线进行同浴染色,能得到良好的同色性及较高的上染率。     

A study on the suitability of which yarn number to use for recycle polyester fiber

Recycling and reuse of materials is not new to the textile and apparel industry. Recycling refers to the breakdown of product into its raw materials in order for the raw material to be reclaimed and used in new products. The aim of the study is that the examining the usage of recycle polyester fiber (rPET) in different yarn count and blend ratio and so to determine which count and blend ratio is more suitable for rPET usage. For this aim, 24 yarns containing recycle polyester fiber, virgin polyester fiber and viscose fiber as raw material were obtained in different yarn counts which are Ne 10, Ne 20, Ne 30 and Ne 40, and in different blend ratios. Yarn diameter, density, shape (roundness), unevenness, imperfection, hairiness, and yarn tensile tests were applied to the obtained yarns. The findings obtained by experimental and statistical study show that rPET fiber has usually negative effects on the yarn properties in especially fine yarns due to physical and chemical deterioration caused by contaminants of during re-processing of recycle polyester fiber. Based on the findings it is revealed that the values of unevenness, imperfection, and density increase whereas the values of diameter, hairiness, and tensile decrease from coarse yarns to fine yarns. As a conclusion it is possible to say that rPET fiber is suitable for thick yarns which are especially Ne 10 and Ne 20 as pure and in all blend ratios, and rPET fiber is suitable if it is used in lower ratios than 65% for Ne 30 yarns, whereas it is suitable if it is used in lower ratios than 35% for Ne 40 yarns.     

丝光碱缩工艺对竹原纤维纱线性能的影响

通过对竹原纯纺纱线、竹原／棉混纺纱线进行丝光、碱缩工艺试验，研究此类纱线的强度、光泽、吸附性能、尺寸稳定性等随丝光、碱缩工艺变化的规律。研究结果表明，以200～250g／L NaOH在室温下处理2min，丝光时可维持原长；碱缩时适当控制张力，可获得强力适中尺寸、稳定的产品。     

代用碱在纯棉筒子纱活性染色中的应用

探讨了固色代用碱简易替DS在纯棉筒子纱活性染料染色中的应用，分析了元明粉用量、代用碱用量、固色温度、固色时间等工艺因素对染色效果的影响，通过工艺因素水平及正交试验，优化了代用碱在纯棉筒子纱活性染料染色中的工艺条件。试验结果表明，简易替DS用量少、化料简便、在染液中分散均匀，固色效果与传统碱剂相当，可取代传统的纯碱固色工艺。     

Effects of core-yarn overfeed on texturing performance: comparison between air-jet and steam-jet texturing

The objectives of this research work were to investigate the use of high-pressure steam in order to replace air in the production of spun-like textured yarns and to investigate the optimum level of core-yarn overfeed ratio for steam-jet textured yarn for the application of sewing threads. An existing air-jet texturing machine was modified to supply either air or steam to the texturing nozzle. Using an identical nozzle, both air-jet and steam-jet textured yarns were manufactured. Loop instability and loop density increased and strength and tenacity decreased when the core-yarn overfeed was increased in both air-jet and steam-jet textured yarns. Steam-jet textured yarns have lower loop instability, lower loop density and higher tensile properties than that of the air-jet textured yarns. Sewability results show that for both air-jet and steam-jet textured sewing threads, core-yarn overfeed ratios of 5.5 and 8.3% give better sewability.     

KoSa持久阻燃的高强聚酯长丝

介绍了KoSa公司开发的持久阻燃的高强聚酯长丝。该纤维具有多种优良的性能，是普通高科技纤维和常规阻燃处理纤维的较理想的替代品。