仿棉共聚酯织物的制备及其亲水性能

为了提高涤纶织物的亲水性,在聚合阶段利用多组分共聚的手段改变聚酯分子结构,经过后道系列的加工制备出仿棉共聚酯织物。对织物进行了亲水性能的测试,结果表明：在20 ℃、相对湿度65 %的环境下,共聚酯织物的回潮率达到1.2 %以上,织物表面与水的接触角瞬间为0°,芯吸高度在 15 cm以上,滴水扩散时间小于1 s,吸水率达到300 %以上。与常规聚酯织物相比,仿棉共聚酯织物的亲水性能得到了明显改善。     

基于聚酯织物的超亲水涂层的制备及其油水分离行为

将聚酯织物先后在水性聚氨酯胶黏剂溶液以及由乙烯基三乙氧基硅烷改性纳米二氧化硅、2-甲基丙烯酰氧乙基三甲基氯化铵、聚乙二醇二甲基丙烯酸酯、三羟甲基丙烷三丙烯酸酯和2-羟基-2-甲基苯丙酮组成的乙醇混合溶液中浸泡,再经紫外固化,得到基于聚酯织物的无机有机复合超亲水涂层。红外光谱、扫描电镜和接触角测试结果确认了织物表面超亲水涂层的形成,水滴在织物表面完全铺展的时间最短仅为301 ms。利用超亲水聚酯织物可以进行油水分离,其分离效率达99.4%。在经过50次循环分离后,其分离效率仍可保持在98%以上。     

改性聚酯EDDP纤维开发成功

改性聚酯 EDDP纤维最近在吴江辽吴化纤厂开发成功 ,产品质量已达到织造要求。EDDP纤维属分散染料常压异染型。该纤维品质优良 ,可与常规 PET交织 ,也可与特种丝并网交织 ;其织物仿麻感强 ,可与其它纤维混纺 ,织物新颖别致 ,也可同浴染色 ,套色达到双色效果。 EDDP纤维织物后道织造性能优于 CDP常压分散染料织物 ,降低加工成本 ,适用于仿真丝织物的开发。改性聚酯EDDP纤维开发成功     

亲水抗静电PET-PEG共聚酯母粒的制备及其结构与性能

为了改善聚对苯二甲酸乙二醇酯(PET)纤维的亲水性能和抗静电性能,需对PET进行改性,以高含量相对分子质量为6 000的聚乙二醇(PEG)作为反应型改性组分,并添加一定含量的无机抗静电剂作为改性助剂,制备了PET纤维用亲水抗静电PET-PEG共聚酯功能母粒,并对母粒的结构与性能进行了表征。结果表明:核磁共振氢谱和红外光谱证实了所制备的PET-PEG共聚酯为目标产物;高含量PEG分子柔性链段的引入降低了PET-PEG共聚酯的熔点和热稳定性,且赋予了吸湿、抗静电性能;母粒中PEG的质量分数为100%(相对对苯二甲酸)较适宜,此时PET-PEG共聚酯母粒的特性黏数为0.847 d L/g,熔点为237.0℃,色相b值为21,表面接触角约25°,吸水率达到85%,体积比电阻达到7.4×107Ω·cm。     

Burlington推出技术仿天然织物

Burlington Perform ance Wear(BPW)公司采用杜邦的Micromattique TM自然无光泽聚酯丝 ,推出技术 -天然织物新家族 Synafural TM。新织物将自然流动性 ,悬垂性与免烫性和高性能相结合。Microm attique在合纤织物中表现仿棉美感。有了 Microm attique就能将聚酯的优异性能与柔软、天然手感相结合。Synatural织物做成的服装不褪色 ,由该织物做成的服装更适合当今较为正规的休闲风格 ,能保持颜色和形状。BPW将该织物作为休闲纯棉裤的替代品。Synatural织物将采用 Nano- Dry TM技术提供舒适性和亲水性 ,如透气、永久芯吸性及快干性Bur…     

涤纶POY/FDY仿棉异收缩混纤丝的性能研究

研究了一步法涤纶POY/FDY仿棉异收缩混纤丝的力学性能、热性能、吸湿性能以及光泽,并与棉纤维进行对比分析。结果表明:仿棉混纤丝断裂强度与棉纤维相近,断裂伸长率、初始模量比棉纤维大;仿棉混纤丝的熔融温度和玻璃化转变温度都比聚对苯二甲酸乙二醇酯(PET)有所降低;仿棉混纤丝与PET纤维相比,回潮率提高,有较好的亲水性能;从光泽上来看,仿棉混纤丝与棉纱相比,反射光较大,光泽较强。     

FZ亲水整理剂通过中试技术鉴定

FZ亲水整理剂是“七五”国家科技攻关项目,常州化工研究所经过二年的努力完成了小试、中试。 FZ亲水整理剂是非离子聚酯—聚醚型耐久性的织物后整理剂,能赋于涤纶及其混纺织物良好的亲水、难沾污、易去污性能。其亲水性能为:液滴吸收时间小于或等于10秒。FZ     

仪纶/涤纶/棉混纺织物一浴法染色技术

超仿棉纤维与其它纤维混纺可提高织物的吸湿性能,但传统的分散/活性染料两浴法染色工艺复杂、能源消耗大、生产效率低。本文对盛发纺织印染有限公司设计的仪纶/涤纶/棉混纺织物(20/50/30)进行了一浴法染色技术研究。结果表明,耐摩擦色牢度、耐洗色牢度、耐光色牢度为4级左右,混纺织物的回潮率为4.54%,静电压为733 V,半衰期为1.14 s,达到仿棉的效果并优于普通涤/棉混纺织物。     

用聚酯织物增强的运输带

前言与运输带中使用的棉、粘胶和尼龙纤维相比,聚酯长丝与其制品具有前者所没有的许多显著优点,这一点,由市场上聚酯织物销售量的急剧上升得到了证实(图1)。聚酯织物具有高强度(按单价计)和高抗撕等优良性能。用聚酯织物增强的远输带经向模数高,在负荷下     

“绿色”纯聚酯脱水透气织物Athtoma

日本帝人公司一直把研制开发有利于生态环保的“绿色”纺织品放在首位。近来开发的纯聚酯防水透气性织物就是一个典型产品 ,商品名“Ａｔｈｔｏｍａ”。他们采用特殊的聚酯树脂以及相应聚酯树脂的涂层技术、制膜技术和合层技术等 ,研制出具有防水透气功能的纯聚酯涂层织物和合层织物。其一是用含有亲水基团的聚酯树脂涂层的聚酯织物 ,其抗耐水压值可达 2 0ｋＰａ ,透气量达 60 0 0ｇ/ｍ2 ·2 4ｈ以上。其二是用他们研制的聚酯粘合剂和无孔含亲水基团的聚酯薄膜合层到聚酯织物。它耐水压值为 2 0 0ｋＰａ ,透气量达 50 0 0ｇ/ｍ2 ·2 4ｈ以上…     

新型假捻变形纱针织物的仿棉性能评价

就新型假捻变形纱针织物的光泽、基本力学性能、悬垂性和热湿舒适性进行了较为全面的研究,并通过与棉织物进行对比分析,对新型假捻变形纱织物的仿棉效果作出了评价.试验结果表明:新型假捻变形纱织物与棉织物相比,正反射光强和漫反射光强较大,对比光泽度较大,具有较高的光泽度值;从基本力学性能测试结果上看,新型假捻变形纱织物的弯曲刚度、弯曲滞后量、剪切刚度、剪切滞后量、压缩比功小于棉织物,而其压缩功回复率大于棉织物,说明新型假捻变形纱织物的柔软性、成形性和弹性回复能力较棉织物好,但蓬松性不及棉织物;新型假捻变形纱织物的保暖性和透湿性能低于棉织物,透气导湿性能好于棉织物,两种织物的接触冷暖感相近.     

超仿棉聚酯纤维的深染及其针织物的热定形

对PASTER超仿棉聚酯纤维的染色及其与氨纶的混纺针织物预定形中的难题进行了研究,并取得了工业化应用成果。通过红光助染剂AC-G105作用,有效解决了超仿棉聚酯纤维深染效果差,染黑色偏光严重的缺点;同时,通过纤维保护剂DP-9810对热定形织物隔热防护,有效消除了该超仿棉纤维与氨纶混纺织物热定形加工中因高温使纤维塑化而手感粗硬的缺陷,保持了织物原有柔软蓬松的棉手感。     

超仿棉纤维的开发及应用

介绍了棉纤维与涤纶短纤维在结构与性能上的区别,运用物理改性或化学加物理改性等多种技术对常规涤纶短纤维的形态、微观结构进行“改造”,使改性后的涤纶短纤维在手感、观感及性能上仿棉,功能上超棉,然后再通过纺织及后整理加工技术的整合提升,使超仿棉织物在手感、观感及穿着的舒适性和功能性等方面达到或超越棉织物.     

Basic dyeable polyester: a new approach using a VUV excimer lamp

Surface treatment of polyester fabric was carried out using a vacuum ultraviolet (VUV) excimer lamp. The hydrophilicity of the polyester fabric was significantly improved by surface modification, as indicated by the decrease in wetting time and wicking time. This approach can be used to create added value for polyester fabric, which otherwise suffers from low hydrophilicity. Further changes on irradiation were characterised by atomic force microscopy and the crystallinity and tensile strength of the samples were also tested. Basic dyeability of the microdenier polyester fabric was seen to improve greatly on exposure to the excimer lamp, followed by grafting with acrylic acid. The effects were observed to increase with an increase in irradiation time. The best effect was obtained for irradiation time of 10 min. These enhanced properties were accompanied by an insignificant loss in crystallinity and tensile strength of treated fabrics.     

Modification of polyester fabric properties by surfactant‐aided surface polymerization

Poly(methyl methacrylate) (PMMA) was applied to polyester fabric using a surface analog of emulsion polymerization. The admicellar polymerization was carried out using 1.5 mM dodecylbenzenesulfonic acid (DBSA) at pH 4 with 0.15M NaCl, 1 : 8 DBSA:monomer, and 1 : 10 initiator:monomer molar ratio. The PMMA film, which was formed, was characterized by SEM and FTIR. Hydrolysis of the PMMA film on polyester fabric was carried out to introduce carboxylic acid groups to the polyester surface to increase its hydrophilicity. The results show that a PMMA thin film was successfully formed on the polyester fabric. The water contact angle of the PMMA‐coated polyester fabric after hydrolysis by 10M H₂SO₄ for 5 h was reduced from 117.3° to 0° and there was a significant increase in the moisture‐regain value of the treated fabric. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 103: 4059–4064, 2007     

超仿棉聚酯纤维性能指标解读

介绍了超仿棉聚酯纤维的特点,从光泽、手感、染色性、舒适性等方面对超仿棉聚酯的性能指标进行了解读.     

Investigation on decontamination mechanism of moisture-wicking fabrics during home laundry

Moisture-wicking clothes are widely consumed in various leisure or sports activities due to their function of moisture absorption and perspiration, which can provide consumers with a good comfortable experience. In this investigation, the stain removal performance of moisture-wicking fabric was investigated, especially the influence of surfactants and hydrophilic finishing agents on its decontamination ability. The results show that moisture-wicking fabric has better decontamination performance than ordinary polyester fabric. The binding force between stains and fibers is calculated by density functional theory (DFT). Compared with ordinary polyester fabric, the binding energy between moisture-wicking fabric and sebum is lower, resulting in stain is more easily to be removed during washing. Different surfactants have a great influence on the decontamination of fabrics, among which the nonionic surfactants with longer carbon chains have the best decontamination performance. Moreover, after finishing with hydrophilic silicone agent, the hydrophilicity of the fabric is significantly improved, and its decontamination performance is also improved. However, this hydrophilic silicone agent will be gradually removed in the subsequent washing process, especially after the first washing, the removal rate reached 75.70%. Therefore, hydrophilic silicone agent can be supplemented in detergent formulation to improve the stain removal performance of moisture-wicking cloths during home laundry.     

Microbial modification of polyethylene terephthalate fabric

A great disadvantage of synthetic fibers is their low hydrophilicity. Polyester fibers are particularly hydrophobic. In the first place, this affects the processability of the fibers. The surfaces are not easily wetted, thus impeding the application of finishing compounds and coloring agents. In addition, a hydrophobic material hinders water from penetrating into the pores of fabric. An additional advantage is a decrease in build‐up of electrostatic charge. Besides an improved processability of hydrophilic textiles, a number of advantages from the consumer's point of view are improved washability, as the water can remove hydrophobic stains more easily, and enhanced wearing comfort due to greater water absorbency. For these reasons, hydrophilicity of polyester fabrics was improved using Trametes versicolor. Incubation conditions were determined as; the polyester fabrics were incubated for 10 days at 28°C and 175 rpm. The modification medium was contained 1 g/L glucose and pH of medium was 4. The modification degree was determined according to the contact angle measurements. Water retention values were compatible with contact angle values. FTIR and SEM images showed that the modification occurred on the PET fabric surface. More hydrophilic PET fabric was made by T. versicolor. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011     

羊毛角蛋白液涂覆处理涤纶的亲水性研究

利用三羧乙基膦(TCEP)和亚硫酸氢钠溶解羊毛制备羊毛角蛋白溶液;采用羊毛角蛋白液涂覆处理涤纶,改善涤纶的亲水性,结果表明:采用体积分数为10%的羊毛角蛋白液涂覆处理涤纶织物,织物平均增重率大于9%,织物的回潮率由0.57%提高到7.16%.吸湿性明显改善;采用TG酶交联角蛋白液涂覆处理织物,可改善其耐洗性;TC酶交联角蛋白的最佳工艺为:TG酶用量1 g,交联时间5 h,交联液pH值为7;经扫描电镜观察和X射线光电子能谱分析,羊毛角蛋白对涤纶有很好的粘附     

An analysis of the moisture-related properties of hydrolyzed polyester

Alkaline hydrolysis causes pitting of the surface of polyester (PET) fibers and films and improves their wettability, as indicated by contact angle measurements. The enhanced wettability is due to an increase in either the number or the accessibility of polymer hydrophilic groups to water and/or an increase in the roughness of sample surfaces. The increase of void space in the PET yarn and fabric structure, induced by treatment in aqueous NaOH together with the increased wettability of the fibers, was effective in improving the moisture transport properties of the materials. The NaOH-treated PET fabrics transported the water further than isolated corresponding yarns, possibly because, in the fabrics, the spaces between the yarns acted as an additional reservoir that permitted further wicking to occur. It is apparent from immersion and equilibrium wicking capacity tests that a hydrophilic topical finish, as well as a change in the yarn/fabric structure and the hydrophilicity of their surfaces can increase the water holding capacity of PET fabric. The moisture regain and water retention values of the samples were determined, and it was found that such tests are not sufficiently sensitive to distinguish between the hydrophilicity of nontreated PET fabrics and that of PET fabrics modified either by application of a topical finish or by NaOH treatment.