纯棉赛络纺纺纱实践

将赛络纺纺纱原理应用于纯棉纺纱中，介绍了纺纱生产中工艺、操作、设备等方面的实践经验，以及产品与正常环锭纺纱、纱和织物的对比，其具有类似股线的特殊品质。     

纯棉赛络纺纺纱实践

将赛络纺纺纱原理应用于纯棉纺纱中,介绍了纺纱生产中工艺、操作、设备等方面的实践经验,以及产品与正常环锭纺纱、纱和织物的对比,其具有类似股线的特殊品质。     

纯棉赛络纺纺纱实践

将赛络纺纺纱原理应用于纯棉纺纱中，介绍了纺纱生产中工艺、操作、设备等方面的实践经验及产品与正常环锭纺纱、线和织物的对比，了解到其具有类似股线的特殊品质。     

灰纱成因分析探讨

将赛络纺纺纱原理应用于纯棉纺纱中，介绍了纺纱生产中工艺、操作、设备等方面的实践经验及产品与正常环锭纺纱、线和织物的对比，了解到其具有类似股线的特殊品质     

LB1538型毛精纺缆型纺细纱机

介绍了LB1538型缆型纺细纱机的纺纱机理、牵伸型式、技术特征、性能特点及缆型纺纱与传统纺纱、织造测试对比数据。说明了在同等工艺条件下，缆型纺纱与传统纺纱相比具有减少毛羽、毛粒，减少纺纱断头率，提高纱线条干质量、强力、耐磨性能、抗起球性能等特点，对提高单纱织造支数，织造效率具有重大意义，具有很大的推广应用价值。     

现代纺纱设备高效工艺的实践与探索

现代纺纱设备的技术进步使其主要工艺效能比传统纺纱设备有了很大的提升,使在现代纺纱设备上探索和实践高效率、高效益的纺纱工艺成为可能,高效纺纱工艺的应用可以大幅提高设备产能,显著降低纺纱生产的投资和运行成本.文中示例的实践和探索可以为选配和使用现代纺纱设备的企业提供参考.     

高科技陶瓷阻捻盘

正在自由端纺纱中,纱线绕自身轴线旋转,并被拉到阻捻盘的表面。任何一个非常小的细节也会对纺纱工艺有很大影响。阻捻盘的设计及其表面特性也将影响纱线的很多性能,例如:纱线表面光滑或是毛糙、纱线膨松或是致密、纺纱稳定性、乌斯特CV值、伸长率、强度和纺纱效率等。     

环锭纺纱集成化智能控制系统构建及其应用

文章融合纺纱生产、物流及管理过程的数字化、连续化及信息化需求,将分散的控制功能进行集成,将相对分离的纱线设计与加工过程进行集成,将相对独立的现场控制与远程监测进行集成,构建了环锭纺纱集成化智能控制系统。该智能控制系统具有基于纱线时序化结构参数实行对纺纱成形机构的运动规律及纺纱工艺参数实现数字化智能控制的功能;具有将传感器检测到的时序化数字信号转换成环锭纺纱系统运行参数、纺纱工艺参数以及纱线结构参数并进行可视化展示的功能;具有将现场控制器的输入输出信号上传到云平台,基于移动设备和远程控制平台实现对细纱机的远程监测与智能控制的功能。     

MiPC—50工控机在FA481粗纱机上的应用

一、概况ＦＡ481型粗纱机是新一代粗纱机 ,与传统的粗纱机相比在机械结构、系统传动以及电气控制方面都有很大的变化。首先在整机的机械结构方面 ,取消了粗纱机传统上的锥轮变速机构、成形机构和张力微调机构 ;在主传动系统中 ,使用两台变频异步电机传动 ;电气控制方面 ,采用了工业控制计算机、可编程序控制器和变频器等。ＦＡ481粗纱机具有液晶屏幕、图形显示和触摸屏操作 ,具有良好的人机对话功能 ,便于纺纱品种和工艺的改变。ＦＡ481粗纱机纺纱时锭翼转速达到 1 2 0 0ｒ/ｍｉｎ ,并且能够保证纺纱过程的张力恒定 ,具有满纱定长定位停车控…     

18 tex棉/木纤/羊绒/绢丝柔洁色纺纱的开发

介绍了柔洁纺纱技术的原理和影响因素,从原料性能、纺纱工艺流程、纺纱工艺要点等方面对采用柔洁纺纱技术开发18 tex棉/木纤/羊绒/绢丝40/30/15/15色纺纱的工艺进行详细分析。采用棉/绢丝生条、木纤维生条和羊绒条三者进行并条的工艺路线,分析柔洁纺纱线质量的主要影响因素。对所纺纱线性能进行测试表明:柔洁纺纱线的毛羽和条干均比环锭纱线有所改善。所开发的纱线柔软舒适,具有一定的抑菌和自清洁功能,可用作开发高附加值功能性面料产品。     

Reliable identification of grapevine rootstock varieties using RAPD PCR on woody samples

Since grapevine ( Vitis spp .) rootstock material is being traded increasingly as disbudded woody material a lack of distinctive morphological features on such material necessitates an alternative and reliable means of identification. Methods described here were developed for rapid and efficient extraction of DNA from woody samples rich in phenolic compounds and polysaccharides, and for subsequent identification of varieties by RAPD PCR. Using these methods, and with the application of only one selected RAPD primer, we were able to differentiate sixteen rootstock varieties, including the seven varieties most commonly used in Germany. Problems commonly encountered with reproducibility of RAPD patterns were avoided by choosing primers with a dinucleotide sequence and a high G/C content that allowed a rather high annealing temperature of 45°C. Methods described here should also be useful for other horticultural crops, especially those with woody tissues rich in phenolic compounds and polysaccharides.     

An internet compendium of analytical methods and spectroscopic information for monomers and additives used in food packaging plastics

An internet website (http://cpf.jrc.it/smt/) has been produced as a means of dissemination of methods of analysis and supporting spectroscopic information on monomers and additives used for food contact materials (principally packaging). The site which is aimed primarily at assisting food control laboratories in the European Union contains analytical information on monomers, starting substances and additives used in the manufacture of plastics materials. A searchable index is provided giving PM and CAS numbers for each of 255 substances. For each substance a data sheet gives regulatory information, chemical structures, physico-chemical information and background information on the use of the substance in particular plastics, and the food packaging applications. For monomers and starting substances (155 compounds) the infra-red and mass spectra are provided, and for additives (100 compounds); additionally proton NMR are available for about 50% of the entries. Where analytical methods have been developed for determining these substances as residual amounts in plastics or as trace amounts in food simulants these methods are also on the website. All information is provided in portable document file (PDF) format which means that high quality copies can be readily printed, using freely available Adobe Acrobat Reader software. The website will in future be maintained and up-dated by the European Commission's Joint Research Centre (JRC) as new substances are authorized for use by the European Commission (DG-ENTR formerly DGIII). Where analytical laboratories (food control or other) require reference substances these can be obtained free-ofcharge from a reference collection housed at the JRC and maintained in conjunction with this website compendium.     

Aroma characterization of various apricot varieties using headspace–solid phase microextraction combined with gas chromatography–mass spectrometry and gas chromatography–olfactometry

The characterization of the aromatic profile of several apricot cultivars with molecular tracers in order to obtain objective data concerning the aromatic quality of this fruit was undertaken using headspace–solid phase microextraction (HS–SPME). Six apricot cultivars were selected according to their organoleptic characteristics: Iranien, Orangered, Goldrich, Hargrand, Rouge du Roussillon and A4025. The aromatic intensity of these varieties measured by HS–SPME–Olfactometry were defined and classified according to the presence and the intensity of grassy, fruity and apricot like notes. In the six varieties, 23 common volatile compounds were identified by HS–SPME–GC–MS. Finally, 10 compounds, ethyl acetate, hexyl acetate, limonene, β-cyclocitral, γ-decalactone, 6-methyl-5-hepten-2-one, linalool, β-ionone, menthone and (E)-hexen-2-al were recognized by HS–SPME–GC–O as responsible of the aromatic notes involved in apricot aroma and considered as molecular tracers of apricot aromatic quality which could be utilized to discriminate apricot varieties.     

Tests of potential functional barriers for laminated multilayer food packages. Part I: Low molecular weight permeants

The advent of the functional barrier concept in food packaging has brought with it a requirement for fast tests of permeation through potential barrier materials. In such tests it would be convenient for both foodstuffs and materials below the functional barrier (sub-barrier materials) to be represented by standard simulants. By means of inverse gas chromatography, liquid paraffin spiked with appropriate permeants was considered as a potential simulant of sub-barrier materials based on polypropylene (PP) or similar polyolefins. Experiments were performed to characterize the kinetics of the permeation of low molecular weight model permeants (octene, toluene and isopropanol) from liquid paraffin, through a surrogate potential functional barrier (25 μm-thick oriented PP) into the food simulants olive oil and 3% (w/v) acetic acid. These permeation results were interpreted in terms of three permeation kinetic models regarding the solubility of a particular model permeant in the post-barrier medium (i.e. the food simulant). The results obtained justify the development and evaluation of liquid sub-barrier simulants that would allow flexible yet rigorous testing of new laminated multilayer packaging materials.     

Analysis of benzo[a]pyrene in spiked fatty foods by second derivative synchronous spectrofluorimetry after microwave-assisted treatment of samples

A simple, rapid and inexpensive method has been developed for the determination of benzo[a     

The development of reference materials for paralytic shellfish poisoning toxins in lyophilized mussel. II: Certification study

This paper describes the second part of a project undertaken to develop certified mussel reference materials for paralytic shellfish poisoning toxins. In the first part two interlaboratory studies were undertaken to investigate the performance of the analytical methodology for several PSP toxins, in particular saxitoxin and decarbamoyl-saxitoxin in lyophilized mussels, and to set criteria for the acceptance of results to be applied during the certification exercise. Fifteen laboratories participated in this certification study and were asked to measure saxitoxin and decarbamoyl-saxitoxin in rehydrated lyophilized mussel material and in a saxitoxin-enriched mussel material. The participants were allowed to use a method of their choice but with an extraction procedure to be strictly followed. The study included extra experiments to verify the detection limits for both saxitoxin and decarbamoyl-saxitoxin. Most participants (13 of 15) were able to meet all the criteria set for the certification study. Results for saxitoxin.2HCl yielded a certified mass fraction of <0.07 mg/kg in the rehydrated lyophilized mussels. Results obtained for decarbamoyl-saxitoxin.2HCl yielded a certified mass fraction of 1.59+/-0.20 mg/kg. The results for saxitoxin.2HCl in enriched blank mussel yielded a certified mass fraction of 0.48 +/- 0.06 mg/kg. These certified reference materials for paralytic shellfish poisoning toxins in lyophilized mussel material are the first available for laboratories to test their method for accuracy and performance.     

Announcing a new international peer-reviewed journal:Food Science and Human Wellness now accepting manuscript submission in English

<正>We are pleased to announce the launch of a new international peer-reviewed journal-Food Science and Human Wellness,ISSN 2213-4530,which is an open access journal,produced and hosted by Elsevier B.V.on behalf of Beijing Academy of Food Sciences.Food Science and Human Wellness is an international peer-reviewed English journal that provides a forum for the dissemination of the     

Chinese CTP Market

According to Printing and Printing Equipment Industries Association of China（PEIAC）＇s statistics to the plate manufucturer in China, in 2013, the actual offset plate production has reached 346 million square meters in China. Among them, the CTP production volume was 245 million square meters, up by 11% than that of last year; the total sales of the CTP plate was 239 million square meters, up by 13%.     

Preparatory Work of Print China 2015 is Going Smoothly

正Held at Guangdong Modern International Exhibition Center,Print China 2015 will cover 7exhibition halls,besides the original Hall No.3,4,5,6,7,the newly built F zone of Hall 3 will be used too.The total area will be140,000 square meters.Hall 3:Offset and large printing equipment,package printing equipment,post press