竹炭改性涤纶纱线的上浆工艺

针对竹炭改性涤纶纱线毛羽较多、耐磨性较差的缺点,制备了3种浆料配方,对各配方浆液及浆膜性能进行了测试分析;分别采用3种浆料配方对竹炭改性涤纶纱线进行浆纱试验,并测试了不同配方下浆纱的各项性能;通过对比分析,得出了适合竹炭改性涤纶纱线的浆料配方及上浆工艺。     

Modal纱线的浆纱工艺

制定了3种浆料配方,通过对比试验,对这3种配方浆料的浆液性能、浆膜性能等进行了测试分析,并分别对Modal纱线进行上浆试验,对比分析了上浆后纱线的毛羽降低率、增强率、减伸率等性能指标,从而得出适合Modal纱线的浆料配方,提高了其纱线性能。     

T5浆料在涤纶短纤纱中取代聚乙烯醇的上浆工艺

根据纯涤纶短纤纱的性能制订了两组上浆配方,其中配方二使用新型变性淀粉T5完全取代聚乙烯醇(PVA)。对浆料及浆膜的各项性能进行了测试,并用两种配方的浆料分别对纱线进行上浆,测试上浆后纱线的各项性能。结果表明:采用高比例T5进行纯涤纶短纤纱复配上浆,其浆膜与浆纱后纱线的性能都能满足生产加工的要求,且成本低、易降解,适应绿色环保的加工趋势。     

接枝玉米淀粉的制备及上浆性能研究

采用自制的引发剂,使酸化的玉米淀粉与醋酸乙烯酯发生接枝共聚反应,通过扫描电镜照片证实了接枝共聚反应的发生。以接枝玉米淀粉为主体浆料对T/C 65/35混纺纱进行上浆试验,试验结果表明,新配方浆纱的织造效果和浆纱性能均优于传统配方。     

莱卡/竹纤维纱线上浆研究

对14.6 tex莱卡/竹纤维纱线进行了两种不同浆料配方的对比上浆试验,分别测试了两种浆料配方的浆液性能、浆膜性能和浆纱效果。结果表明,对莱卡/竹纤维纱上浆可以不用PVA,而采用以变性淀粉浆料为主,加入适量聚丙烯酸浆料、CMS和抗静电剂,可达到减少毛羽、降低静电、提高抱合力等良好的上浆效果,有效改善了莱卡/竹纤维纱线的可织性。     

涤/粘混纺纱上浆工艺实践

浆纱工序是织物织造的关键工序,针对涤/粘混纺纱易产生静电、毛羽多等特点,制定了两种经纱上浆配方,对其浆液性能、浆膜性能及浆纱质量等相关指标进行对比分析,得出了13tex涤/粘混纺纱的最佳上浆工艺。     

天丝/竹纤维混纺纱性能及上浆工艺研究

通过对14.6 tex天丝/竹纤维混纺纱线的物理性能进行研究分析,发现天丝/竹纤维混纺纱线具有毛羽多、弹性差、湿模量高、吸湿膨胀等性能缺陷。为改善其浆纱性能,针对天丝/竹纤维纱线的缺点,配置了两种适合于其上浆的浆料配方,并测试分析了其浆液、浆膜和浆纱性能。结果表明,加入适量的聚丙烯酸和变性淀粉等浆料对天丝/竹纤维混纺纱线的上浆效果好,上浆后,浆纱性能得到明显改善。     

偶联剂改性可再生水性浆料的制备与性能

以天然玉米淀粉为主要原料,利用偶联剂KH-550对其进行改性,制备了一系列环保、性能优良的改性浆料, 并对其浆纱性能进行了测试.结果表明,该浆料糊化性能良好、浆液稳定,可替代原配方中80%的PVA 浆料,且浆纱性能优良.     

莫代尔/涤纶针织用纱工艺设计的探讨

结合生产工艺实践,详细介绍了莫代尔/涤纶(质量比80/20)13 tex针织用纱的生产设计过程。首先对选用的莫代尔和涤纶两种纤维进行性能测试,根据纤维性能及混纺比例确定纺纱工艺流程,再通过计算各道工序半制品定量、牵伸倍数、机件转速等参数调整每道工序所选设备的工艺参数,并进行参数优化,最后测试莫代尔/涤纶混纺纱的性能。通过测试数据分析得出,混纺纱的品质性能明显优于纯纺纱的性能,为企业开发此类产品提供了有利的理论参考。     

远红外中空涤纶纱线的浆纱工艺研究

介绍了远红外中空涤纶的特性,制定了2种远红外中空涤纶纱线上浆配方。对浆液性能及浆膜性能进行了测试分析,并对9.7 tex远红外中空涤纶纱线进行了上浆试验,结果表明:上浆后,纱线的各项性能都有所提高。     

锭速及捻因数对Modal纤维纯纺纱性能的影响

结合生产实际,选用不同的锭子速度及捻因数,对Modal纤维纯纺纱性能进行研究,主要包括对成纱的强伸性、毛羽及条干性能的影响,从而得出纺Modal纤维纯纺纱的最佳工艺参数。实践表明:锭子的速度应该控制在7230 r/min左右,捻因数应该在380~400之间,纱线的综合成纱指标最好。     

聚丙烯腈基碳纤维用环氧树脂上浆剂的比较

用两种环氧树脂上浆剂对国产聚丙烯腈基碳纤维进行上浆,测试和比较了两种环氧树脂上浆剂对聚丙烯腈(PAN)基碳纤维耐磨性、与水接触角、表面能等性能以及拉伸强度、伸长率、层间剪切强度(ILSS)等力学性能的影响。上浆剂中主体成分环氧树脂相对分子质量不是影响碳纤维层间剪切强度的决定性因素。     

Effect of hyperbranched poly(trimellitic glyceride)/oxidized starch composite sizing agent on the adhesion of polyester yarns

Oxidized starch is an environmentally friendly sizing agent, but lacks adhesion to polyester yarns. In this study, hyperbranched poly(trimellitic glyceride)/oxidized starch (PTG/OS) as the composite sizing agent is used for sizing polyester yarns. The properties of sizing film, sizing paste, and sizing yarns are studied. When PTG content ranges from 2 to 10 wt%, tensile strength of PTGs/OS films are higher than that of oxidized starch film, and increase as molecular weight of PTG increase. Tensile strength of OS, PTG-1/OS, PTG-2/OS, and PTG-3/OS films with 10 wt% PTG is 20.5, 22.4, 23.8, and 27.6 MPa, respectively. Apparent viscosity and viscosity stability of PTG/OS paste increases with the increase of PTG molecular weight. Breaking force, elongation at break and work-to-break of sizing polyester yarns by PTG/OS increase with the increase of PTG content in composite sizing agents, and the improvement on the tensile properties of sizing polyester yarns by PTG/OS becomes better with increase of PTG molecular weight. It is attributed to the stronger affinity among oxidized starch, PTG and polyester, which is verified by FT-IR, XPS, and SEM. Oxidized starch blended hyperbranched poly(trimellitic glyceride) has the potential application for sizing polyester yarns in weaving process.     

Improving the Adhesive Property of Polyester Fabric with Sodium Hydroxide and Corona Discharge Treatment

In this study, polyester fabric was treated with sodium hydroxide combined with corona discharge to modify the surface properties. This was done to improve its adhesive property to ensure effective sizing with starch under different conditions. Scanning electron microscopy photographs showed that the surface of polyester fiber was etched more by the combined process than that by either corona discharge treatment or sodium hydroxide treatment. The results showed that the adhesive property of polyester fabric with starch was improved as a result of the treatment with sodium hydroxide or by corona discharge. However, fabric treated by the combined methods showed even better results. This study shows great potential for applying corona discharge in the sizing process of polyester staple yarn.