棉织物活性红SNE的轧蒸染色工艺

选用活性红SNE染料,采用轧蒸染色工艺对棉织物进行染色,制定棉织物活性红SNE的轧蒸染色工艺。对染色后织物的K/S值和固色率进行测试,讨论了汽蒸时间、碳酸钠、元明粉、尿素用量对染色效果的影响。结果表明:活性红SNE染料25 g/L、汽蒸时间3 min、碳酸钠30 g/L、元明粉60 g/L、尿素50 g/L时,染色织物K/S值和固色率较好,棉织物的染色效果较好。     

纯棉织物KN型活性染料冷轧堆染色工艺探讨

进行活性染料冷轧堆染色工艺实验,探讨了染料和碱剂的选择、碱剂用量、尿素及硫酸钠用量、堆置时间、水质等诸因素对冷轧堆工艺的影响.通过测量试样的表观深度和色牢度发现,当KN型活性红HF-6BN染料浓度为10 g/L时,Na2SiO3用量为10～15 g/L,尿素浓度低于5g/L,硫酸钠浓度10g/L为宜;在室温下堆置16 h.固色达到平衡;且冷轧堆染色以使用软水为佳.     

代用碱在亚麻织物活性染料冷轧堆染色中的应用

对代用碱在亚麻织物活性染料冷轧堆染色工艺中的应用进行了试验,探讨了堆置时间、轧余率、代用碱用量、NaCl用量等因素对亚麻织物活性染料冷轧堆染色效果的影响,确定了亚麻织物活性染料冷轧堆染色的优化工艺:代碱剂0.9 g/L,轧余率80%,NaCl 20 g/L,堆置时间10 h.     

羊毛织物冷轧堆染色

试验探讨固色碱品种与用量、渗透剂、促染剂,活性染料用量,以及冷堆温度和时间对羊毛织物染色效果的影响,结果表明,羊毛冷轧堆优化染色条件为:碱剂碳酸钠60～80 g/L,渗透剂JFC 1%,促染剂乙酸铵1%,30～37℃冷堆5～6 h.为避免产生色斑,染料用量不宜超过60 g/L.冷轧堆染色的羊毛织物得色量较高.     

灯芯绒冷轧堆染色工艺的优化

用中心旋转法设计纯棉灯芯绒织物冷轧堆染色工艺中烧碱用量、硅酸钠用量和堆置时间3变量5水平试验.通过分析K/S值二维恒值图,优化冷轧堆染色工艺:染藏青色时,烧碱质量浓度5.7～8.9g/L,硅酸钠质量浓度96～112g/L,堆置时间18.8～21h;染浅色时,烧碱质量浓度4.0～6.0g/L,硅酸钠质量浓度86～108s/L,堆置时间22.5～24h左右.大样生产表明,用优化工艺染灯芯绒织物的K/S值比原工艺高7%～9%,各项色牢度均符合要求.     

深色平绒织物活性冷轧堆染色

采用Remazol RGB系列活性染料对平绒织物进行冷轧堆深色染色.探讨了碱剂用量、堆置温度、堆置时间和轧余率对染色牢度、K/S值和匀染性的影响.结果表明,平绒织物冷轧堆深色染色的优化工艺为:烧碱与硅酸钠的混合碱剂(烧碱15 g/L、硅酸钠70g/L),堆置时间12 h,堆置温度20℃,轧余率80％.采用该工艺染色的织物固色率高,匀染性好,各项色牢度优良.     

棉针织物活性染料冷轧堆染色工艺探讨

采用代用碱ALKAFLO~ CPB作为棉针织物B型活性染料冷轧堆染色固色助剂,探讨并分析了碱剂类型、碱剂用量、尿素用量、氯化钠用量、冷轧堆染色温度和时间等因素对染色效果的影响,并测试了染色织物耐摩擦色牢度和耐皂洗色牢度。结果表明,采用代用碱ALKAFLO~ CPB作为活性染料棉针织物冷轧堆染色的固色助剂,染色织物的表观色深高于其他碱剂;当染料用量为10 g/L,冷堆温度为30℃时,最佳染色工艺为:代用碱30 g/L,尿素30 g/L,氯化钠10~30 g/L,染色时间6~9 h;染色织物的耐皂洗色牢度和耐摩擦色牢度均较好。     

棉针织物活性染料冷轧堆染色工艺及成本优势

分析了棉针织物活性染料冷轧堆染色工艺,指出前处理的丝光和碱缩可使染料利用率提高16%～40%;染料应选用亲和力和直接性较低、有一定耐碱水解稳定性的活性染料;碱剂以氢氧化钠和碳酸钠的混合碱为宜,且应控制这两者的使用比例;盐(NaCl)用量一般为30～45 g/L,尿素可加入10～60 g/L,渗透剂用量1～3 g/L;另外,注意打卷条件并控制堆置时间12～20 h和堆置温度,可以保证棉针织物冷轧堆染色的均匀和固色量。最后,对此工艺所消耗的水、热能、染料及助剂用量,与传统浸染工艺作了对比,发现每加工1 t织物,冷轧堆染色可节约1.74×106kJ热能,且大大降低了水和化学品的消耗,说明棉织物活性染料冷轧堆染色工艺在节能、减排、降耗及降低成本方面具有较大的优势。     

代用碱在亚麻织物活性冷轧堆染色中的应用

采用代用碱ALKAFLO~CPB作为亚麻织物活性冷轧堆染色用固色助剂,探讨碱剂类型、碱剂用量、尿素用量、氯化钠用量、冷轧堆温度和时间对染色效果的影响。研究结果表明,其染色织物的表观色深高于混合碱剂;当染料用量为10 g/L时,其优化的染色工艺为:代用碱30 g/L,尿素30 g/L,氯化钠10~30 g/L,染色温度30℃,染色时间6~9 h;其染色织物的耐洗和耐摩擦牢度均在3级以上。     

棉针织物活性染料短流程低温无盐染色

使用自主开发的活性染料安诺素蓝SNE和碱剂色丽牢SF-01对未前处理的棉针织物进行低温无盐染色,研究了表面活性剂SA用量、色丽牢SF-01用量对染色效果的影响,测定了K/S值及染料提升力。结果表明,当表面活性剂SA的浓度4 g/L,固色碱色丽牢用量为25 g/L,染料浓度30 g/L时,染色效果最好,染色K/S值为42;染料浓度为20 g/L、4 g/L表面活性剂SA条件下染色,与染料浓度50 g/L、未加表面活性剂染色K/S值相当,达到相同染色深度,同时,大大节约了染料的使用量,且降低污水处理难度,节约生产成本。     

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     

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.     

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     

Contamination of animal feed and food from animal origin with mineral oil hydrocarbons

Oils and fats used for the production of animal feed can become contaminated with mineral oil material originating from gas oils (C₁₈-C₃₅) or synthetic oils (poly alpha olefins, C₂₅ to beyond C₄₅). An important cause is assumed to be the discharge of waste oils, such as motor oil and hydraulic oils. Mineral oil material was analysed by on-line LC-GC-FID directly in the fat or in a raw extract from animal feed or foodstuffs. In Switzerland in summer/autumn 1999 concentrations in oils and fats for feed production were often found to be between 100 and 1000mg/kg. In the feeds, the average concentration was around 100mg/kg with values ranging up to a maximum of 1000mg/kg; few samples were free of contamination. In animal body fat, the average concentration determined in summer 1999 was 25mg/kg, with a maximum of 150mg/kg, although in samples from December 1999, contamination was substantially lower. In the fat phase of eggs, the average concentration was 30mg/kg, with a maximum of 80mg/kg. Paraffin oil is used for feed production, which may account for part of the contamination problem (e.g. eggs).