二醋酯长丝复合空气变形纱的性能比较

采用5种不同83．3 dtex合纤长丝作芯丝,分别与177．34 dtex二醋酯长丝进行复合空气变形加工, 分析了不同芯丝对变形纱的结构及其性能的影响。结果表明,复合变形纱的强伸性能和沸水收缩率主要由其芯丝决定;5种芯丝中,以PFT FDY作芯丝时,复合空变纱的丝圈稳定性最好,结构膨松性良好、断裂强度较高,断裂伸长率、2 mm高度毛羽数和成纱外观均匀性居中,但沸水收缩率偏大。     

产业化醋酯长丝纺丝生产技术

通过对醋酯长丝生产技术及装备的产业化开发,研究了影响醋酯长丝生产及产品品质的主要因素及调控措施,在产业化生产线上生产出了符合服装面料要求的醋酯长丝。     

醋纤长丝性能、应用及开发对策

叙述了醋纤长丝生产工艺和生产装置的基本特点,通过与粘胶长丝及蚕丝的物理和机械性能比较,阐述了醋纤长丝的纤维素纤维共性,明确了优于粘胶长丝而酷似真丝的特点,同时阐述了醋纤长丝一般用途及逐渐拓宽的复合丝应用领域。通过对当前醋纤长丝开发工作中存在的实际难点的分析,提出解决问题的对策。     

三菱人丝新织物

三菱人丝新开发了 2种女装织物 ,一种是“Ｍｏｄｅｌｅｔ”机织物 ,是三醋酯“Ｓｏａｌｏｎ”与特种聚酯长丝的复合 ,另一种是“Ｎａｌｉｓ”聚酯长丝机织物。“Ｍｏｄｅｌｅｔ”有蓬松性好 ,回弹性足 ,轮廓佳 ,凉爽、吸湿 /快干及易保养等特性。“Ｍｏｄｅｌｅｔ”由随机多层结构的丝生产 ,通过利用用于“Ｓｏａｌｏｎ”和特种弹性聚酯的空气长丝 -混合技术 ,将“Ｓｏａｌｏｎ”放在外围部分。材料构成是 70 %三醋酯 / 30 %聚酯。“Ｎａｌｉｓ”为休闲服用聚酯长丝机织物。除仿真丝光泽外 ,还表现两种矛盾感 :即柔和的沙沙声与光滑性。此外…     

二醋片和醋酸长丝的市场分析及前景展望

醋酸纤维是具有高附加值的纤维品种,具有与真丝相媲美的外观和舒适性.二醋片是生产烟用过滤嘴和醋酸长丝的主要原料.简单介绍了醋酸纤维的发展历史和应用,详细分析了二醋片、醋酸长丝的国内外生产现状、市场需求及发展预测,并对我国发展醋酸纤维工业提出了几点建议.     

塞拉尼斯欧美醋酯公司从长丝撤退

塞拉尼斯欧美醋酯LLC公司计划从醋酯纤维长丝撤出。该公司醋酯事业大幅度再组建的理由是：事业的效率化,过剩设备削减,按长期的观点向着有效益的事业靠拢已经完成。     

不断进步中的醋酯纤维技术与市场

简要介绍了醋酯纤维的特点及近年来醋酯纤维技术的新进展,指出基于国内烟用醋酯丝束市场供需已趋于平衡的现实,开发高档服装用醋酯长丝产品具有可行性.     

防霉剂双乙酸钠的性质用途与制备

介绍了双乙酸钠的性质 ,用途 ,制备方法及市场前景     

生物质戊二胺己二酸盐改性共聚酯及其长丝的性能

生物基戊二胺己二酸盐改性共聚酯是将生物基戊二胺己二酸盐加入聚酯体系中合成的一种新的材料,用差示扫描量热分析法和热重分析研究生物基戊二胺己二酸盐改性共聚酯的热性能,制备了改性共聚酯长丝,研究了长丝的取向度、力学性能及亲水性能等。结果表明:改性共聚酯具有较好的热性能,纤维的取向度较常规聚酯纤维降低,纤维的手感和亲水性能显著改善,改性共聚酯长丝的断裂强度降低,断裂伸长率提高,戊二胺己二酸盐添加量不宜太大,控制在10%左右比较合适。     

烟用二醋酸纤维素丝束单丝截面异形度等影响因素的研究

单丝截面异形度对烟用滤棒的吸阻、烟气的过滤效果等有直接的影响。通过试验,对Ф54/350H喷丝帽、纺丝甬道300×200mm2条件下,浆液水分、喷丝帽孔径、喷丝帽在线连续使用时间与单丝截面异形度的关系进行了研究。同时,对纺丝拉伸比DDR、浆液水分与单丝断裂强力和断裂伸长率的关系进行了研究与分析。     

双乙酸钠抑制产黄青霉菌的效果观察

用ＰＤＡ培养基于３２℃培养时,当下述防霉剂浓度皆为０．３％,ＳＤＡ比丙酸钙、山梨酸钾和苯甲酸钠对产黄青霉菌有更好的抑制效果;ＳＤＡ抑制产黄青霉菌的适宜浓度为０．１％～０．２％。     

织物防紫外线性能与测试方法的研究

使用辐射强度计和紫外分光光度计分别测定了各种织物的紫外线透过率,发现两种测试方法具有很好的相关性。织物的覆盖系数对紫外线透过率影响特别显著,并呈负相关关系;而容重对织物抗紫外线性能影响不大。合理选用功能性抗紫外线纤维可以更好地获得抗紫外线性能。     

利用分水器降温改进乙酸乙酯合成工艺

利用水在溶剂中的溶解度随温度降低而减小的原理,通过降温反应生成的水,提高主反应反应速率,降低杂质,分水器降温可以使乙酸乙酯周期平均减少25%,得到的乙酸乙酯粗品多1.06%,粗品含量提高1.8%,收率提高2.22%。     

Properties of Textured Yarns of Low Linear Density by Commercial Package Layers

The effect of the structure of commercial packages on the properties of textured yarn of low linear density is investigated. The possibility of using commercial packages with textured yarns of low linear density weighing 2.5 kg for 1.67 tex yarn, 3 kg for 2.2 tex yarn, and 4 kg for 3.3 tex yarn is established.__________Translated from Khimicheskie Volokna, No. 1, pp. 42–45, January–February, 2005.     

CFS碳纤维补强织物的织机改造和工艺研究

碳纤维补强织物(简称 CFS 织物)具有极优异的力学性能,可代替水泥、混凝土材料用于土木工程加固和基础设施修补等领域。通过对国外进口道尼尔(Dornier)织机的改造,成功研制出质量可与国外产品媲美的碳纤维产品。     

Physical Properties of R-PET/CD-PET Polyblended Hollow Filaments and Their Kinetics of Alkaline Hydrolysis

Cationic dyeable poly(ethylene terephthalate) (CD-PET) was formed by copolymerizing dimethylterephthalate (DMT),5-sodium sulfonate dimethyl isophthalate (SIPM) with a molar ratio of 2% and ethylene glycol (EG). Blends of regular poly(ethylene terephthalate) (R-PET) and CD-PET were spun into hollow filaments. The filaments were then treated with aqueous NaOH. This study investigated the physical properties of R-PET/CD-PET polyblended hollow filaments and their kinetic behavior of alkaline hydrolysis using differential scanning calorimetry (DSC), wide angle x-ray diffraction (WAXD), the density gradient method, gel permeation chromatography (GPC), rheometer measurement and statistical analysis using the regression method. Experimental results indicate that the rate constant of alkaline hydrolysis was CD-PET hollow filaments >R-PET/CD-PET polyblended hollow filaments > R-PET hollow filaments. For the alkaline hydrolysis kinetics equation of R-PET, CD-PET/R-PET polyblended and CD-PET hollow filaments: –dW/dt=KC A , is equal to 1. Moreover, R ² of the kinetics equation for from 1.061.29 was better than that of =1.     

Effect of Hydrophobic Plant Extract on the Physicochemical Properties of a Transparent Fabric Softener

This article investigates the effect of hydrophobic supercritical CO₂ raspberry seed extracts on the physicochemical and functional properties of a modern, transparent fabric softener. The addition of a hydrophobic extract to a transparent softener formulation increased the turbidity and dynamic viscosity of the product compared to the reference formulation (with no added extract). In addition, fabric rinsed in a bath containing the transparent fabric softener enriched with the hydrophobic extract was characterized by a higher degree of softness and slightly lower values of fabric rewettability (two parameters determining the usable properties of this type products) in relation to the values determined for a fabric exposed to the rinsing process in an aqueous solution of the transparent fabric softener without added extract. The results obtained in the assessment of physicochemical properties point to the modification of the structure of fabric softener resulting from the growth of surfactant aggregates due to solubilization of the hydrophobic extract. As a consequence, the deposit—an adsorption layer of surfactants (responsible for key characteristics relevant to the performance of this type of products) remaining on the fabric after the rinsing process—is modified.