台湾造纸化学助剂简介

台湾造纸工业发展很快,1989年纸与纸板产量高达300万吨,大部分为高、中档产品,广泛应用化学助剂赋予产品特殊性能及提高质量,值得借鉴。 最近台湾最大的造纸公司永丰余造纸股份有限公司属下的聚和化工公司总经理郭聪田博士来广州访问,介绍了该公司的造纸化学助剂,产品种类繁多,除供台湾各纸厂使用还出口东南亚各国,很受造纸界欢迎。     

台湾造纸工业的发展与现况简介

台湾是造纸工业发达的地区之一。在过去十多年中,台湾造纸业有较大的发展。１９９８年,台湾造纸工业尽管受到亚洲金融风暴之冲击,纸和纸板总产量仍达到４２７．５万吨。根据台湾造纸工业同业公会的有关资料,本文简介台湾造纸工业的发展与现况。１８０年代以来台湾造纸...     

加快造纸化学品发展步伐,为我国造纸工业现代化服务

本文介绍了我国造纸工业的发展及造纸化学品行业的形成、发展和现状,对造纸化学品行业如何做大做强、为我国造纸工业的发展提供更好的服务提出了自己的观点。     

我国造纸化学品产业的发展与应用

0前言 造纸化学品工业是造纸工业的上游产业,现代的造纸工业在制浆、抄造及成纸后加工整个造纸生产的全过程均离不开各种化学品的应用。当前造纸工业的发展要走绿色造纸、低碳经济的道路,造纸化学品产业的发展可以为造纸工业提供更多更好的服务。     

加快我国造纸化学品行业发展步伐，为造纸工业现代化服务

本文介绍了我国造纸工业的发展及造纸化学品行业的形成、发展和现状，对造纸化学品行业如何做大做强、为我国造纸工业的发展提供更好的服务提出了自己的观点。     

《2003年中国造纸年鉴》出版

由中国造纸学会隆重推出的造纸工业权威工具书《2003年中国造纸年鉴》已于2003年11月正式出版发行。该书全面系统地介绍了我国造纸行业的生产、消费、需求、政策、规划等各方面的发展与变化。内容全面、具体,数据详实、可靠,预测准确、合理,是了解中国造纸行业的必备工具书。该书主要内容包括:制浆造纸消费最新动态,全国纸张、纸浆、废纸进出口情况,中国林业的现状及发展,林纸一体化进程与政策建议,造纸工业“十五”规划实施情况分析,全国造纸工业生产建设最新数据,制浆造纸高新技术及装备的应用与推广,造纸行业最新企事业名录等。订购电话:…     

台湾纸业人才流失严重

近年来台湾纸业受东面亚国家同业快速发展而向外大量吸收人才的影响，导致岛内造纸技术人才流失严重。业者对刚成立的中华制浆造纸技术学会寄予厚望，期待其能发展成为纸业界技术资料、人才培训吸造纸工程的顾问中心，为岛内造纸工业的未来发展做出贡献。台湾造纸工业历经数十年的发展，目前已进入成熟期，随着该岛内业界的扩建情形日渐减少，加上经营环境改变，对造纸技术人员形成若干负面影响。相对地，在此时期东南亚各国造纸工业却迅速发展，急需人才，于是台湾中、高级造纸技术人员恰好成为首先被挖走的对象，导致岛内业界人才大量外流…     

全球造纸工业发展趋势分析

作者根据全球纸浆、纸及纸板生产和消费情况分析了全球造纸工业的发展特点,并重点介绍了全球几家大型纸业公司的发展情况,为我国造纸企业的发展提供参考。     

造纸过程中的自动控制原理及应用

介绍了在造纸过程中所用到的自动控制的基本原理及自动控制技术在造纸工业中的一些应用实例,说明了在造纸过程中通过引入自动化技术,使造纸工业得到的快速发展。     

制浆造纸工业计算机控制的现状和发展方向

我国制浆造纸工业计算机控制的总体水平还很低。但是，近年来在制浆造纸生产过程的建模、控制算法研究及其工程化方面已取得了长足的进步。本文介绍了目前制浆造纸自动化现状，并在此基础上指出了制浆造纸工业计算机控制的发展方向。     

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