易护理型Tencel(R):组织设计和染整加工的最佳实践

易护理性能已成为对织物基本的要求。对于 Tencel纤维 ,在织物组织结构设计时将易护理性能考虑进去 ,合理的组织设计 ,并通过随后的染整加工 ,诸如湿处理和树脂整理 ,可提升Tencel的性能 ,并超越棉和其他纤维素纤维。具有优良易护理性能的 Tencel,其组织设计和染整加工的基本要求如下 :平衡的及松式组织结构 ;湿处理使织物蓬松并定形 ;树脂整理则促进织物变形恢复性能。本文阐述容易起皱织物的特点 ,以及 Tencel在织物组织设计和染整加工中获得易护理性能的有效方法。1　织物结构一块无皱织物 ,其纱线在织物平面上呈有规则而又平行的排列 …     

免烫Tencel~:织物结构和整理中的理想应用

在当今的纺织品中免烫是最基本的要求 ,但要取得好的性能并不容易。对于Tencel来说 ,最好的处理方法是从一开始就把免烫概念构思到织物中去 ,特殊的Tencel织物结构、湿处理和整理工艺有助于提高Tencel的免烫性能 ,使其免烫性能很容易优于棉和其他纤维素织物。Tencel良好的免烫性能的基本要求是 :平衡稀薄的织物组织结构 ;用湿处理来提高其蓬松度 ,并给织物定型 ;用化学整理来改善回弹性。仔细地挑选符合要求的机织物结构并且通过湿处理和化学整理 ,出现折痕的可能性就大大降低。本文讨论了折皱织物一些特征 ,并通过改变织物结构和化学整理…     

Tencel/棉高支高密织物前处理工艺

根据Tencel纤维及Tencel/棉高支高密织物的性能特点,阐述了Tencel/棉高支高密织物的前处理加工艺, 并指出了加工注意事项.     

TENCEL纤维新产品

Acordis公司新推出多只Tencel纤维新产品，包括Natural Stretch等。Tencel纤维在湿态会膨化，利用特殊织物结构，再加上特种染整技术，织物不含弹性纤维或加弹涤纶，也有适度弹性。纯Tencel织物可达到20％弹性伸长。在针织产品方面，Acordis公司新推出经原纤化处理的桃皮绒品种，这种新品可赋予服装无与伦比的柔软度和舒适性。这种超等手感和外观通过初步匹料加工，然后经传统成衣整理而获得。     

吸湿快干功能性纺织产品的开发

提出了从纤维的制备、织物组织结构的设计和对织物后整理加工等方面来开发吸湿快干功能性纺织产品。根据毛细吸水原理，可将纤维纺成超细纤维、制成并形丝或中空丝等方法；因吸湿快干功能性产品一般选用涤纶或涤棉等为原材料，考虑将亲水性纤维包覆涤纶丝，或将织物表面织造成有明显凹凸感来提高其吸湿性和透气性；对织物后整理加工，可采用亲水性整理剂接枝共聚或施加于织物上等方法来提高吸湿性，最终使产品获得吸湿快干性能。     

Richcel纤维的性能及其产品

将经过5％NaOH溶液处理的Richcel（丽赛）、Viscose、Modal、Lyocell、Tencel—G、Tencel—A100纤维与处理前的这些纤维试样进行了对比测试，包括干湿态拉伸性能、溶胀性能和形态结构测试。由于Richcel纤维的聚合度和结晶度较高，使其对碱的稳定性较高，这是该纤维最突出的性能。Richcel纤维经碱处理后强度损失小、溶胀率较小、形态变形也很小。将其与棉进行不同比例的混纺，然后对混纺织物进行适当的丝光整理，可改善织物手感与光泽，减少收缩，提高织物尺寸稳定性和褶皱稳定性。此外，Richcel纤维未经碱处理时，其干湿态断裂强度和初始模量均较高。文中还对Richcel纤维织物的染整工艺和应用领域作了简要介绍。     

免烫Tencel(R):织物结构和整理中的理想应用

在当今的纺织品中免烫是最基本的要求,但要取得好的性能并不容易.对于Tencel来说,最好的处理方法是从一开始就把免烫概念构思到织物中去,特殊的Tencel织物结构、湿处理和整理工艺有助于提高Tencel的免烫性能,使其免烫性能很容易优于棉和其他纤维素织物.     

Tencel织物的抗皱免烫整理

选用自制的、以柠檬酸为主要成分的、多元羧酸型树脂整理剂 ,采用正交实验的方法 ,寻找对Tencel纤维织物进行树脂整理的最佳工艺 ,并和传统的DMDHEU交联型树脂整理剂对Tencel纤维织物的整理工艺比较。同时 ,对处理后织物的物理指标进行测试 ,结果表明对Tencel织物用自制树脂整理剂进行整理 ,可以获得很好的免烫整理效果 ,是甲醛型树脂整理剂的良好替代品。     

Tencel织物的染整实践

针对Tencel织物的原纤化特性，分析了其前处理、染色和整理加工特点及工艺条件，采用退浆、漂白冷轧堆一步法，然后用双活性基活性染料染色，再进行柔软处理，避免了织物强力损伤，各项服用性能较好。     

染整生产疑难问题解答

问一：我厂拟加工一批Tencel纤维织物及Tencel/粘织物,请问采用何种工艺较好？前处理使用何种酶较为理想？     

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