止汗剂研究进展

综述止汗剂近年来的研究进展。介绍了出汗与体味形成的机制和减轻体味、减少汗液量的方法。阐述了止汗活性物质和其替代物的研究近况及其作用机理。简介了上止汗剂配方和喷雾剂、棒状止汗剂和乳液状止汗剂等目前市场上几类主要的止汗剂型。展望了止汗剂的未来发展趋势。     

浅述吸湿排汗聚酯纤维

综述了吸湿排汗聚酯纤维的吸湿排汗机理、影响吸湿性的主要因素、主要加工方法和国内外发展现状,并对吸湿排汗聚酯纤维的未来发展前景进行了展望。吸湿排汗纤维将成为一种新型的聚酯纤维升级换代产品。     

除臭引发的灵感

在经济危机的外部环境及市场竞争加剧的背景下，介绍了止汗剂／除臭剂在香型、绿色环保和临床功效方面的发展现状，并对未来的止汗剂／除臭剂市场的发展趋势做出了预测。     

吸湿排汗纤维的发展概述

概述了吸湿排汗纤维的工作机理及制备方法,对吸湿排汗纤维的应用前景进行了展望。     

硅氧烷表面活性剂的应用

硅氧烷表面活性剂已在个人护理产品行业使用了若干年。目前虽然已开发出许多其他功能化组合物并商业化,但硅氧烷表面活性剂大部分还是硅氧烷聚醚共聚物基产品。独特的表面特性使得这些产品在个人护理的各个方面广泛使用,包括止汗剂,皮肤养护,面部护理,以及护发产品等。这些硅氧烷表面活性剂的主要功能是提供乳化、保湿性能并提高个人护理产品的整体美感。硅氧烷表面活性剂在个人护理用品中的主要应用基于其乳化作用。作为乳化剂使用始于20世纪80年代初,到目前已经使用了数年。最早的使用是在止汗剂方面,其中采用了一系列独特的硅氧烷聚醚来稳定     

吸湿排汗剂在织物洗护中的应用研究

研究了四种不同结构的吸湿排汗剂在洗涤剂与柔顺剂中的应用性能,考察了吸湿排汗剂对洗涤剂去污力、抗再沉积性等洗涤性能的影响,以及对洗护处理后织物的柔软性能、吸湿性、透气性等服用性能的影响,最后考察了吸湿排汗剂对产品稳定性的影响。实验结果表明：在洗涤剂/柔顺剂中添加吸湿排汗剂都能改善洗后织物的吸湿性,但不同结构的吸湿排汗剂效果有差异,且在洗涤剂和柔顺剂中表现也不同,其中聚酯聚醚共聚物CP3在洗涤剂中表现最好,磺酸基改性聚酯聚合物CP2在柔顺剂中表现最好;添加了吸湿排汗剂的洗涤剂会部分影响对JB-01和JB-03的去污力。综合来看,磺酸基改性聚酯聚合物CP2在洗涤剂和柔顺剂中表现最好,不影响产品性能的同时赋予织物较好的吸湿性。     

亲水性纤维和吸湿排汗纤维的开发应用

介绍了亲水性纤维和吸湿排汗纤维的一些基本概念和制备原则，并介绍了吸湿排汗丙纶、吸湿排汗涤纶、吸湿性排汗锦/丙复合超细纤维的制备方法。     

行业动态

<正>锦纶66吸湿排汗水晶丝推出辽宁银珠化纺集团成功研发生产出高技术含量、高附加值的尖端产品——锦纶66吸湿排汗水晶丝。锦纶66吸湿排汗水晶丝技术被列入2008年辽宁省企业技术创新重点项目计划。锦纶66吸湿排汗水     

祛汗剂／去体味剂产品市场

分析了美国祛汗剂，去体味剂市场的市场状况。着重介绍了祛汗剂／去体味剂的产品形式、香型、特殊功效、品牌创新以及绿色产品。对祛汗剂，去体味剂市场的一些最新趋势进行介绍。指出，随着人们消费意识的增强与消费水平的提高，更加天然和环保的组分或产品以及包装风潮正在流行，并将持续下去，消费者将会寻求保持清新的新方法。     

洛阳石化公司成功开发具有吸湿排汗功能纤维

洛阳石化公司于2004年9月成功生产出了具有“吸湿排汗”功能的差别化中空纤维。此产品属中国石化集团公司攻关开发项目,由东华大学和洛阳石化公司联合研究开发。新开发的“十字”异形短纤维具有强透气性、排汗性,吸湿后能在很短时间内排干水分,主要用于高档服装生产。     

Fading of azo reactive dyes by perspiration and light

The fastness of azo reactive dyes on cellulose in a combined perspiration and light test was investigated, and compared with the results obtained in a conventional light fastness test. Whereas reactive dyes containing an H-or K-acid azo chromophore performed better in the conventional light fastness test, reactive dyes of the J-or γ-acid type exhibited a higher fastness in the combined test. The results suggest that testing under combined perspiration and light conditions involves a photoreduction mechanism, but a photo-oxidation mechanism operates when dyed fabrics fade under light only.     

The effect of perspiration on photo-induced chemical reaction of azo dyes and the determination of aromatic amine products

In order to investigate the impact of perspiration on photo-induced chemical reaction of azo dyes and the carcinogenic aromatic amine products produced from the reaction, we have carried out experimental studies on the photochemical reaction of C.I. Reactive Red 2 mixed with American Association of Textile Chemists and Colorists（AATCC）standard artificial perspiration. UV-vis spectroscopic technique was employed to monitor the reaction processes, and the reaction products were analyzed by hollow fiber protected liquid-liquid-liquid phase micro-extraction with capillary electrophoresis（HF-LLLME-CE). The results showed that perspiration had remarkable influence on the photochemical reaction of azo dyes. Aromtic amines formed during the photochemical process as a result of reduction of azo dyes by organic components in perspiration. The HF-LLLME-CE methodology was validated in analyzing aromatic amines produced from the photochemical degradation of azo dye C.I. Reactive Red 2 and C.I. Acid Red 35 mixed with artificial perspiration.     

环境因素对染料日晒牢度的影响

本文综述了光、染料聚集态、染色深度、汗液及纤维种类等环境因素对染料日晒牢度的影响.并对各个因素所起作用的机理和方式作了详尽的阐述.指出染料的日晒牢度是受其化学结构和所处的外部环境及形态共同作用的,要根据不同的服用环境和需要来设计染料结构,以提高染料的日晒牢度.     

Fading of reactive dyes on cellulose under light and perspiration

The fading of nine reactive dyes on cotton fabrics under light and perspiration was investigated using the ATTS standard and many factors affecting the stability of these dyes were discussed, viz. exposure environment, chromophores of dyes, the pH value and components of the artificial perspiration. The experimental results show that reactive dyes exhibit lowest stability under simultaneous exposure to light, perspiration and oxygen in a wet state. Among all selected dyes, Cu-complex azo reactive dyes appear to be the most sensitive, whereas anthraquinone reactive dyes show the best stability. The pH value of perspiration may also greatly influence the fading of dyes by affecting the hydrolytic stability of dye–fibre bonding. Furthermore, the study on the contribution of artificial perspiration components discloses that some acidic components play major roles in the fading of the dyes and inorganic salts usually decelerate the fading extent.     

排汗冷却材料用于人体舒适度调节的技术原理及进展

拥有排汗冷却技术的织物材料可以提高排汗效率,提高人体热舒适性。概述了织物面料排汗冷却技术的主要特征及实现原理,包括快速吸汗、快速排汗和提高透气性;详述了新型排汗冷却材料,包括吸湿快干纤维、表面张力驱动微流体排汗材料、水驱动形状记忆聚合物材料、吸湿膨胀多层复合材料和湿度梯度响应聚合物材料;介绍了排汗冷却材料应用在功能性衣物上的商业化进展;最后总结了各种排汗冷却技术的优缺点,并对未来研究和发展方向提出了建议。     

聚丙烯复合材料气味吸附剂的研究

针对车用聚丙烯复合材料的气味物质种类,筛选气味吸附剂,并考察吸附机理。研究发现,硅藻土、A1、A2、PY88能吸收甲醛气味;活性氧化物能消除丙酮气味;A2能吸收乙酸乙酯气味,气味分子直径与吸附剂孔径越接近吸收活性越高。     

Ein neues Prinzip der Desodorierung

A New Principle of Deodoration Deodoration, defined as removal (quenching) of odours, is accomplished by a combination of zinc ricinoleate and synergistic additives (?Grillocin”?). Such a preparation does not inhibit the growth of both bacteria and fungi and does not prevent perspiration. Hence this new directly acting preparation can be usefully employed in cosmetics. Experimental results indicate that the mechanism of action of Grillocin can be interpreted by assuming the formation of adducts of the clathrate type.     

Chemical and Olfactory Characterization of Odorous Compounds and Their Precursors in the Parotoid Gland Secretion of the Green Tree Frog, Litoria caerulea

When stressed or challenged by a predator, the Australian green tree frog, Litoria caerulea, emits a characteristic nutty odor from its parotoid glands. This study identifies the source of the odor as the cyclic amide 2-pyrrolidone (2-PyrO). In addition, we demonstrate the presence of 2-PyrO's straight chain form, -aminobutyric acid or GABA, in the frog's glandular secretion and propose an odorant–precursor relationship. What role both compounds play in the frog's defensive strategy remains unknown. Prolonged exposure to the odor is shown to result in adverse effects that may be attributed to a GABAergic mechanism. It is our hypothesis, however, that the odor acts as an aposematic signal, indicating the toxicity of the frog's nonvolatile secretion.     

Spatial Arrangement of Odor Sources Modifies the Temporal Aspects of Crayfish Search Strategies

In natural habitats, animals encounter cues from multiple odor sources that may impact foraging decisions. Previous work has focused on orientation behavior to one food odor source, and does not distinguish between mechanosensory and chemosensory guidance of orientation. The present study investigated how the spatial distribution of two food cues affects crayfish orientation behavior. Crayfish, Orconectes virilis, were presented with odor sources that were separated in an artificial stream. Orientation behavior was filmed from above and digitized at a rate of 1 frame per sec. Electrochemical recordings were taken to characterize the odor plume, and an acoustic doppler velocimeter was used to characterize the hydrodynamic structure of the artificial stream. Temporal changes in odor plume structure were seen as a result of the positioning of the odor sources. Changes in the intermittency of the odor pulses as well as concentration, rise time, and slope of the pulse were observed. Time series analysis showed that the lower frequency signals of the dual odor source were higher in energy than the single 1X or single 2X sources. Crayfish altered orientation strategies when presented with different spatial arrangements of food cues. In particular, the temporal aspects of the orientation pattern were most altered by the differences in odor presentations. Crayfish responded with faster walking speeds as a function of distance to the odor source and exhibited more consistent turning angles. This correlates with temporal changes in odor structure, and indicates that the temporal pattern of odor stimulation may be driving the temporal pattern of behavior.     

低气味低VOC玻纤增强聚丙烯材料的研制

以聚丙烯(PP)树脂为基体,PP接枝马来酸酐(PP-g-MAH)为相容剂,纳米氧化锌和纳米二氧化钛为复合气味吸收剂,经双螺杆挤出机制备了玻璃纤维(GF)增强PP材料,并分别研究了各组分对材料力学性能和气味等级的影响。结果表明,相容剂PP-g-MAH为GF增强PP材料气味的主要来源,在提高气味等级方面,选用相容剂时,固相接枝工艺比熔融接枝工艺的好,且接枝率不宜太高。在选用PP粒料、接枝率为1.2%的固相接枝PP-g-MAH以及纳米氧化锌和纳米二氧化钛复合气味吸收剂的基础上,制备了低气味和低挥发性有机化合物的GF增强PP材料,其拉伸强度为62 MPa,弯曲强度为76 MPa,缺口冲击强度为8.5 k J/m~2,由其制备的汽车空调电机风扇叶轮产品的气味等级达到了Q/JLY J711061–2009标准的7级要求。