卫生纸机圆网改长网的技术创新改造

介绍将卫生纸机圆网改长网的技术改造,具有独到的设计构思,技术上得到创新,结构简单、操作方便,车速快、产量高、质量好,实现了卫生纸机圆网改长网提高产品档次的目的,是一次很成功的、具有参考价值的技术改造实践经验,为企业解决了实际的技术问题。车速由改造前的100～150m/min提高到350～500m/min,定量15～30g/m2,单台日产量由改造前的7～10t提高到30～40t。纸的主要物理指标有明显提高,电耗、煤耗、浆耗、水耗均有下降,改造后生产卫生用纸产品的档次提高。     

圆网纸机改造为长网纸机的技术创新

介绍了国内某企业4600 mm圆网纸机改造为长网纸机的情况。纸机车速由改造前的120～150 m/min提高到350～500 m/min;纸机产品由原来的挂面箱纸板改为52～150 g/m2铜版原纸,产品档次提高,生产的铜版原纸质量达到用户要求;单台日产量由改造前的50～70 t提高到200～250 t;改造后电耗、煤耗、浆耗、水耗均有下降;改造后企业的经济效益明显提高。     

长网纸机产特种宣纸的系统结构创新改进

介绍了原3150型两台圆网特种宣纸纸机,改为长网特种宣纸纸机投产一年后,又经历了艰辛系统结构的创新改造,是目前国内首创的先进长网特种宣纸纸机。该纸机生产30～40g/m2宣纸,制浆原料为沙田稻草浆纤维60%～70%,配青檀树皮纤维浆40%～30%,车速由改造前的70～90m/min提高到320～380m/min,日产量由改造前的单台8～10吨提高到45～55吨,使生产特种宣纸具备上档次产品。     

卫生纸机结构改造提高车速见成效

介绍卫生纸机原先采用老式活动弧形板网槽,后来改用压力喷浆成形器和带压活动弧形板成形器的两次改造情况。车速由改造前的(90～100)m/min提高到(280～300)m/min;日产量由改造前的(5～6)吨提高到(15～18)吨;适应生产上档次卫生纸。     

长网纸机改造提速的实践经验

主要介绍4500型长网造纸机流浆箱和网部的改造情况。车速从改造前的280～320m/min提高到800～830m/min;纸的日产量从改造前的130～150t提高到350～380t;纸的主要物理指标有明显提高;电耗、煤耗、浆耗和水耗均有下降。该长网机的结构,适应生产文化用纸、高强瓦楞原纸和牛皮纸等品种。     

圆网改长网纸机产高强瓦楞纸的技术改造

介绍了4500型圆网纸机改为长网纸机的改造情况。车速由改造前的95—130／min,提高到400—500m／min;单台日产量由改造前的50～70t提高到200～250t;纸的主要物理指标有明显提高,电耗、煤耗、浆耗、水耗均有下降。改造后生产高强瓦楞纸、牛皮纸等产品的档次提高。     

卫生纸机结构改造提速见成效

介绍了2400型卫生纸机由原先采用老式活动弧形板网槽,后来改采用压力喷浆成形器和带压活动弧形板成形器的两次改造情况。车速由改造前的90～100／min提高到270～300m／min;日产量由改造前的5～6吨提高到15～18吨;适应生产上档次卫生纸。     

卫生纸机提速的技术创新改造

介绍原先采用老式活动弧形板网槽的2400型卫生纸机,后来采用压力喷浆成形器和折流带压双匀浆辊的活动弧形板成形器的改造情况。车速由改造前的90～120m·min-1提高到230～260m·min-1;抄克重15～30g·m-2,单台日产量由改造前的6～8t提高到23—27t;适应生产上档次卫生纸。     

圆网纸机生产挂面箱纸板的技术改造

介绍了圆网纸机采用折流带压活动弧形板成形器、三辊半湿压光机,改换大辊径压榨,增加烘缸组,增设表面施胶机和压光机等系统的技术改造情况.生产实践表明,改造后,车速由改造前的95～130/min提高到95 ～230m/min,日产量由改造前的35 ～45t提高到100 ～ 135t,且所生产的挂面箱纸板和瓦楞原纸档次得到了提高.     

特种宣纸的圆网改长网纸机系统结构创新改造

介绍了原3150型四台特种宣纸的圆网纸机改为长网纸机的同时,经过系统结构的技术创新改造,则是目前国内首创特种宣纸的长网纸机。该纸机生产(30~40)g/m2宣纸,制浆原料沙田稻草浆纤维(60~70)%,配青檀树皮纤维浆(40~30)%,车速由改造前的(120~150)m/nim提高到改造后的(350~400)m/min,日产量由改造前的单台(15~18)吨提高到改造后的(50~55)吨,使生产特种宣纸具备上档次产品。     

Review of techniques to manufacture micro-hydrogel particles for the food industry and their applications

Microgels are ‘soft’ microscopic cross-linked polymeric particles that are being increasingly exploited in a variety of industries for rheology control, encapsulation and targeted delivery. They are valued because of the ability to tune their functionality to address specific applications in oil recovery, coatings, drug delivery, cosmetics, personal care and foods. Food microgels are typically biopolymer hydrogels in the form of microspheres, nanospheres (also called nanogels), spheroids and fibres. The utilisation of engineered microgels in foods has so far been limited, despite their great potential to address several needs in the food industry, including: satiety control, encapsulation of phytonutrients and prebiotics, texture control for healthier food formulations (e.g. reduced fat products), and targeting delivery to specific areas in the digestive tract. We review the scientific and patent literature on the utilisation and manufacturing methods for producing microgels with an emphasis on micro-hydrogels for food applications.     

12—A CRITIQUE OF SOME HYPOTHESES RELATING TO THE HETEROGENEITY OF THE HIGH-SULPHUR PROTEINS OF WOOL

Joubert and Burns prepared a large number of fractions from the high-sulphur proteins of wool and estimated their molecular weights and amino-acid compositions. Their data have been re-examined in order to look for statistically significant interrelations between amino acids and between the proportion of various amino acids and molecular weight. Statistical analysis of the data is also used to examine the credibility of some hypotheses concerning the mechanism of keratin biosynthesis and to provide further evidence for the existence of families of proteins within the high-sulphur fractions of wool.     

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 Latest Data about Development of Chinese Printing Industry in 2013

In the 2014 China（Shanghai）International Printing Week,Director Wang Yanbin released the latest data about development of Chinese printing industry in 2013.According to statistics,in 2013,the total output value of Chinese printing industry exceeded 1trillion Yuan for the first time,reaching 1.03985 trillion Yuan.There were 105,000 printing enterprises in China,employees were 3.415 million.The total asset was 1.06247 trillion Yuan;     

The State Council Issued "Directory of Government Approved Investment Projects(2013 Edition)"

正On December 2nd,2013,the State Council issued the notification of"Directory of Government Approved Investment Projects(2013 Edition)"(hereafter referred to as"notification").It is pointed out in the"notification"that in order to further deepen reforms in investment systems and administrative examination and approval systems,simplify administrative procedures and delegate powers to lower levels,earnestly     

Top Ten News of China's Paper Industry 2013

On December 24th, 2013, the meeting on the selection of top 10 news of China＇s paper industry 2013 sponsored by 〈China Paper Newsletters〉 was held in Beijing. The yearly selection of the top l0 news, which began in 2000, has become a brand activity widely recognized in the industry thanks to the support from the authorities at all levels and public participation.     

National Development and Reform Commission Issued Announcement for Selection of Major Preliminary Research Projects for the "13~(th) Five-Year Plan"

In Apri Commi major p Plan＂ （h 2014, the National Development and Reform ssion issued an announcement for selection of reliminary research projects for the ＂13th Five-Year ereafter referred to as ＂The Announcement＂）     

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 latest scientific     

China textile machinery: taking off in progress

正Among the 1600 exhibitors who take apart in the ITMA ASIA+CITME2014 2/3 are Chinese manufactures.If the numerous figures failed to attract your attention,the increase of quality should draw your focus.To adopt the demand of developing textile machine market,domestic textile machinery enterprises now follow the slogan of"technology drives development"to enhance product competitiveness.Our domestic sellers will showcase product ranging from spinning,weaving,dyeing and printing,     

Anti-mutagenic compounds from corn

In previous studies with aflatoxin-contaminated corn an uncharacteristic response for AFB₁ in the Salmonella/microsomal mutagenicity assay (Ames test) was observed and the presence of anti-aflatoxin factors in the corn was suggested. In the current study, corn was extracted and fractionated using thin layer chromatography (TLC) using different developing solvent systems and the Ames test was used to monitor for anti-mutagenic activity in the corn fractions. Both Salmonella tester strains TA98 and TA100 with metabolic activation (S9) were used. Several corn fractions, at different stages in the isolation and purification process, showed anti-mutagenic dose-responses when exposed to pure AFB₁. Corn extracts were non-toxic to the tester strains and TLC fractions that showed the best anti-mutagenic dose-responses were selected for further partial characterization analyses.