低温等离子体改性真丝织物的喷墨印花性能

真丝织物由于纤维表面光滑、抱水性较差,在喷墨印花时易产生渗化现象,清晰度和得色深度较差.试验采用常压低温等离子体(LTP)技术对真丝织物进行表面改性,随后以活性墨水喷印.探讨了LTP处理时间和极板间距对真丝织物喷墨印花固色率和K/S值的影响.结果表明,在放电功率60 W、极板间距2 mm的常压低温等离子体中处理3 min,真丝织物的润湿性、防渗化性能和印花色牢度可得到有效改善.     

低温等离子体改性真丝织物的喷墨印花-眭能

真丝织物由于纤维表面光滑、抱水性较差,在喷墨印花时易产生渗化现象,清晰度和得色深度较差。试验采用常压低温等离子体（LTP）技术对真丝织物进行表面改性,随后以活性墨水喷印。探讨了LTP处理时间和极板间距对真丝织物喷墨印花固色率和K／S值的影响。结果表明,在放电功率60w、极板间距2mm的常压低温等离子体中处理3min,真丝织物的润湿性、防渗化性能和印花色牢度可得到有效改善。     

氧等离子体处理羊毛及其对羊毛织物印花性能的影响

本文研究在不同功率和压强条件下用氧等离子体对羊毛纤维和织物进行不同时间长度的处理。处理后,羊毛织物的印花性能显著改善,同时,羊毛纤维的定向摩擦效应也得到一定的降低。另外,我们对样品进行了扫描电镜测试和Awolldern实验,以求从羊毛表面形态的角度来解释氧等离子体对羊毛改性的原因。     

常压空气等离子体处理后真丝织物的喷墨印花

通过采用常压空气等离子体对真丝织物进行表面改性处理,后用浅品色纳米颜料墨水喷墨印花.结果表明处理后的真丝织物图案清晰、得色深度有所提高,并且没有降低织物的印花色牢度.借助原子力显微镜和动态接触角张力仪分析了处理前后真丝纤维表面形貌和润湿性能的变化.     

空气/氩气等离子体预处理涤纶织物的喷墨印花

采用空气/氩气次辉光放电等离子体对涤纶织物表面进行改性预处理,再用浅品色纳米颜料墨水进行喷墨印花.探讨了等离子体处理对涤纶织物喷墨印花K/S值、防渗效果和纤维表面形貌等影响.结果表明,经混合气体等离子体处理后,涤纶织物的亲水性和防渗性显著提高,喷墨印花图案清晰、得色量提高,且不影响印花色牢度,并优于相同条件下空气等离子体处理效果;其最佳氩气混合比例为20%,最佳处理条件为:功率300 W、时间150 s、极板同距3mm.     

常压空气等离子体处理涤纶织物的喷墨印花

采用脉冲常压空气等离子体对涤纶织物进行表面改性处理,再用浅品色纳米颜料墨水进行喷墨印花.探讨了等离子体处理时间和极板间距对K/S值的影响,并对处理前后的涤纶织物进行润湿性分析.结果表明,等离子体最佳处理工艺条件为:功率300W,时间180s,极板间距3mm.处理后涤纶织物的亲水性和防渗性显著提高,喷墨印花织物图案清晰、得色量高,且不影响印花色牢度.     

等离子体对喷墨印花织物表面的影响

以空气、氩气为气氛的常压等离子体对涤纶织物进行表面改性,再用蓝色纳米颜料墨水进行喷墨印花.探讨了等离子体处理对涤纶表面形貌、化学组分、润湿性,以及印花性能的影响.研究发现,常压等离子处理涤纶织物后,可提高喷墨印花的清晰度和颜色鲜艳度,改善了渗化性能;XPS谱显示,涤纶表面的化学组分也发生了改变;扫描电镜分析显示,等离子体处理后纤维表面产生凹坑.     

喷墨印花等离子体预处理的时效性

涤纶织物采用常压空气等离子体表面改性后,放置在特定环境条件中,研究放置时间对涤纶纤维表面形貌、化学组分、润湿性以及直接喷墨印花性能的影响.试验结果证实,等离子体对织物表面的物理刻蚀作用不存在时效性,而纤维表面化学元素含量和润湿性能则随放置时间呈现出规律性变化,从而影响织物喷墨印花性能.涤纶织物经等离子体处理后,应尽可能在24 h内进行喷墨印花.     

低温氧等离子体处理对真丝纤维性能的影响

主要对低温氧等离子体处理的真丝纤维儿性能进行了研究，结果表明处理后真丝的结构和性能都发生了变化，由于经低温氧等离子体处理的真丝纤维产生剥离，处理后真丝纤维的强力有所下降，真丝纤维的取向度有下降的趋势，经低温氧等离子体处理后真丝纤维的结构得到了改良，纤维的弹性增加。     

真丝织物数码喷墨印花技术的介绍与探讨

介绍了数码喷墨印花技术的原理、特点及墨水组成等。并探讨了真丝织物采用数码喷墨技术进行印花的工艺过程和注意事项。     

Textural Properties of Cold-set Gels Induced from Heat-denatured Whey Protein Isolates

A 9% whey protein (WP) isolate solution at pH 7.0 was heat-denatured at 80°C for 30 min. Size-exclusion HPLC showed that native WP formed soluble aggregates after heat-treatment. Additions of CaCl2 (10–40 mM), NaCl (50–400 mM) or glucono-delta-lactone (GDL, 0.4–2.0%, w/v) or hydrolysis by a protease from Bacillus licheniformis caused gelation of the denatured solution at 45°C. Textural parameters, hardness, adhesiveness, and cohesiveness of the gels so formed changed markedly with concentration of added salts or pH by added GDL. Maximum gel hardness occurred at 200 mM NaCl or pH 4.7. Increasing CaCl2 concentration continuously increased gel hardness. Generally, GDL-induced gels were harder than salt-induced gels, and much harder than the protease-induced gel.     

Occurrence of bisphenol-F-diglycidyl ether (BFDGE) in fish canned in oil

The levels of bisphenol-F-diglycidyl ether (BFDGE) were quantified as part of a European survey on the migration of residues of epoxy resins into oil from canned fish. The contents of BFDGE in cans, lids and fish collected from all 15 Member States of the European Union and Switzerland were analysed in 382 samples. Cans and lids were separately extracted with acetonitrile. The extraction from fish was carried out with hexane followed by re-extraction with acetonitrile. The analysis was performed by reverse phase HPL C with fluorescence detection. BFDGE could be detected in 12% of the fish, 24% of the cans and 18% of the lids. Only 3% of the fish contained BFDGE in concentrations considerably above 1mg/kg. In addition to the presented data, a comparison was made with the levels of BADGE (bisphenol-A-diglycidyl ether)analysed in the same products in the context of a previous study.     

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.     

Contribution of European research to risk analysis

The European Commission's, Quality of Life Research Programme, Key Action 1—Health, Food & Nutrition is mission-oriented and aims, amongst other things, at providing a healthy, safe and high-quality food supply leading to reinforced consumer confidence in the safety of European food. Its objectives also include the enhancing of the competitiveness of the European food supply. Key Action 1 is currently supporting a number of different types of European collaborative projects in the area of risk analysis. The objectives of these projects range from the development and validation of prevention strategies including the reduction of consumers risks; development and validation of new modelling approaches; harmonization of risk assessment principles, methodologies, and terminology; standardization of methods and systems used for the safety evaluation of transgenic food; providing of tools for the evaluation of human viral contamination of shellfish and quality control; new methodologies for assessing the potential of unintended effects of genetically modified (genetically modified) foods; development of a risk assessment model for Cryptosporidium parvum related to the food and water industries; to the development of a communication platform for genetically modified organism, producers, retailers, regulatory authorities and consumer groups to improve safety assessment procedures, risk management strategies and risk communication; development and validation of new methods for safety testing of transgenic food; evaluation of the safety and efficacy of iron supplementation in pregnant women; evaluation of the potential cancer-preventing activity of pro- and pre-biotic ('synbiotic') combinations in human volunteers. An overview of these projects is presented here.     

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     

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,     

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.