代尿素DN-0516在黏胶针织物印花上的应用

黏胶针织物活性染料印花需要大量尿素助溶,印花废水中的氨氮超标,文中应用自制产品代尿素DN-0516代替尿素在黏胶针织物上的活性印花。探讨代尿素DN-0516对活性染料色浆黏度、印花Integ值、印花色牢度的影响,并与尿素对比。结果表明,代尿素DN-0516能够较好地满足黏胶针织物的活性印花要求,其印花深度、色牢度等与尿素印花织物相当,可完全取代尿素。     

腈纶针织物拔染印花工艺

染色后的腈纶针织物采取拔白和着色拔染的印花方式,其效果是缝纫镶条、镶色或阳离子染料印花所不及。腈纶针织物拔染印花需要解决的问题主     

锦纶针织物冷转移印花工艺分析

锦纶针织物采用圆网、平网印花时,会出现织物拉开后泛白现象以及色牢度差等问题。文中采用冷转移印花的方式对锦纶针织物进行印花。介绍了锦纶针织物冷转移印花原理及工艺流程,详细分析了染料选择、印刷、转印、蒸化、水洗等工序。结果表明,冷转移印花完全适用于锦纶针织物,有效地解决了白芯或泛白问题;并且水洗工艺简单,色牢度优良。     

针织物印花图案设计与数码印花工艺研究

文中从数码印花图案设计原则、图案来源及图案类别3方面介绍了针织物数码印花图案的设计。并阐述了针织物数码印花面料整体应用、数码印花面料局部应用及多种数码印花拼接应用。从半制品要求、预处理要求、墨水特点、色彩管理、打印技术及后处理工艺的角度进行阐述,以便探讨影响针织物数码印花的工艺因素。     

涤纶针织物的圆网印花

近年来,素色涤纶针织物已经滞销,而印花产品却供不应求。印花涤纶针织物适于做针织外衣,且在装饰用布、工业用布等方面也有广泛的市场。七十年代发展起来的圆网印花是开发涤纶针织物面料市场的有效途径。因此,发展涤纶针织物圆网印花对于行业开发新产品,增加     

圆机针织物剖幅前涂料双面印花工艺

圆筒形针织物圆网印花一般均在剖幅后进行,根据客户要求,采用翻转掉头二次印花的方法,对圆筒棉针织物进行双面涂料印花,通过试验,确定了圆筒形棉针织物双面印花的最佳工艺,并从前处理、助剂选择、圆网印花、后整理等工序,阐述了生产工艺的特点及注意事项.     

涤棉针织物TNTY印花产品的研发

针对涤棉针织物传统印花工艺能耗高、污染重等问题,研制了涤棉针织物TNTY印花新工艺。介绍了涤棉针织物印花前准备工序,比较并探讨了分散、涂料同浆印花,分散、活性一相法印花与TNTY印花3种工艺的处方、工艺流程和工艺要求,测试并比较了3种印花工艺的手感和牢度。得出TNTY印花工艺不仅解决了染料印花工序繁琐、工时长、废液排放多、环境污染严重的痼疾,而且保证了涤棉针织物印花产品柔软舒适,贴身穿着的手感,取得了满意的加工效果。     

纺织品丝网印花应考虑和注意的问题

<正>纺织品是各类机织物、针织物、非织造布、线类、带类、绳类等纺织工业产品的总称。纺织品是人们生活和生产的必需品,通常根据其最终用途可划分为衣着用纺织品、装饰用纺织品和产业用纺织品三大类。因为丝网印花涉及量最多的是机织物和针织物,所以本文重点讨论的是机织物和针织物丝网印花时应考虑和注意的问题。当前,从事纺织品丝网印花的企业有两大类:①一些大中型纺织品印染企业,他们对机织物印花     

日本针织物印花现状与问题

近年来,日本印花针织物生产量逐年减少,染色针织物生产量却有日益增加的趋势(见表1)。影响印花针织物生产的因素很多,本文仅从印花加工的角度,就其生产现状和今后产品开发前景作如下叙述。     

羊绒针织物数码喷墨印花的开发与应用

介绍了数码喷墨印花技术的基本原理及特点,对比传统的印花工艺并针对羊绒针织物的特点,结合生产实践对数码喷墨印花的前处理、喷印、蒸化、调色工艺进行了分析探讨,给出了羊绒针织物活性染料数码喷墨印花的工艺参数并对印花试样的色牢度及甲醛含量进行了测试。     

Influence of pectin modification on water binding properties

Water can be bound to food components and products as non-freezing, freezing-bound and free water. The interactions are crucial for any application as well as for food consumption and digestion. DSC was applied to examine the amounts of the different types of water bound to pectin, a biomacromolecule that is used as gelling and stabilising agent in many food products. One commercial high-methoxylated citrus pectin and three modified samples, prepared by acidic and alkaline demethoxylation as well as amidation, were tested. The water content of dry samples depended mainly on the molecular parameters, especially the content of hydrophilic groups at the galacturonic acid that was increased by demethoxylation and amidation, as well as on monovalent cations of the pectins. The water–pectin interactions of wetted materials were additionally influenced strongly by the availability of hydrophilic groups that depended on material properties such as amorphous or crystalline state, powder bulk and solid density and porosity as well as particle size, surface and porosity. Small amorphous porous particles, whose polar groups were rapidly available without prior softening and swelling, accelerated water uptake. Non-freezing and freezing-bound water, bound closely to the pectin molecules, depended on the number and type of polar groups. Free water, bound in micro- and macro-capillaries as well as voids within and between the pectin particles, was influenced by hydrophilic as well as hydrophobic groups of the samples. There was a strong impact of the pre-treatment during processing and modification.     

干燥方法对金银花的质量影响研究

通过对金银花的不同干燥方法比较,干燥方法对金银花的质量有较大影响。在色泽方面,微波干燥和烘干的为绿色,晒干和真空干燥的为黄绿色,真空冷冻干燥的为褐色;在绿原酸的含量上,微波干燥的为5.93%,晒干的为5.17%,烘干的为5.53%,真空干燥的为3.95%,真空冷冻干燥的为3.35%;干燥后每g金银花的含菌量分别为:微波干燥的细菌总数2×103,晒干的为3.4×105,烘干的为1.4×105,真空干燥6×104,真空冷冻干燥为4×104。结果表明微波干燥最适合金银花的干燥。     

秋季草本养生饼的研制及其辅助降血脂作用的研究

基于中国传统医学"天人合一""四季养生"的理念,研究选用药食同源的原料,结合秋季燥邪当令的特点,以感官评分为指标,研制一款适合秋季调理的天然草本养生饼。采用单因素及正交试验确定并优化了秋季草本养生饼配方:馅以板栗仁质量为基准,加入山药9%,百合2%,藕粉4%,木糖醇20%,混合油(玉米油:黄油为1:1)10%;皮以白芸豆质量为基准,加入21%的混合粉(低筋面粉:乳粉为1:1),24%木糖醇,14%混合油(玉米油:黄油为1:1)。动物实验结果显示:原料提取液能显著降低高血脂小鼠血清中总胆固醇、甘油三酯、低密度脂蛋白含量(P<0.05)。     

Bacillus probiotics

Bacterial spore formers are being used as probiotic supplements for use in animal feeds, for human dietary supplements as well as in registered medicines. Their heat stability and ability to survive the gastric barrier makes them attractive as food additives and this use is now being taken forward. While often considered soil organisms this conception is misplaced and Bacilli should be considered as gut commensals. This review summarises the current use of Bacillus species as probiotics, their safety, mode of action as well as their commercial applications.     

Potential Benefits of Edible Berries in the Management of Aerodigestive and Gastrointestinal Tract Cancers: Preclinical and Clinical Evidence

Epidemiological reports as well as experimental studies have demonstrated the significant health benefits provided by regular berry consumption. Berries possess both prophylactic and therapeutic potential against several chronic illnesses, such as cardiovascular, neurodegenerative, and neoplastic diseases. Berries owe their health benefits to phytoconstituents, such as polyphenolic anthocyanins, ellagic acid, and a diverse array of phytochemicals bestowed with potent antioxidant and anti-inflammatory effects as well as the ability to engage a multitude of signaling pathways. This review highlights the principal chemical constituents present in berries and their primary molecular targets. The article presents and critically analyzes the chemopreventive and therapeutic potential of berry extracts, fractions, and bioactive components on various cancers of the gastrointestinal tract (GIT), including esophageal, stomach, intestinal, and colorectal cancers as well as cancers of the upper aerodigestive tract, such as oral cancer. The current status of clinical studies evaluating berry products in several aforementioned cancers is presented. Various emerging issues including dose-ranging and dosage forms, the role of synergy and the usage of combination therapy as well as other relevant areas essential for the development of berry phytoconstituents as mainstream chemopreventive and therapeutic agents against aerodigestive and GIT cancers are critically discussed.     

白酒黄水中纤维素降解菌的分离鉴定及产酶活性研究

为拓展纤维素降解菌资源,以羧甲基纤维素钠（CMC-Na）为唯一碳源作初筛培养基,从浓香型白酒发酵副产物黄水中分离得到18株具有产纤维素酶能力的菌株进行纯培养。形态学、生理生化和系统发育鉴定结果显示,菌株XH01、XH04、XH05、XH18为Bacillus cereus,菌株XH34为Bacillus circulans,菌株SW01、SW05为Bacillus megaterium,菌株SW02为Bacillus endophyticus,菌株SW03、SW04为Bacillus simplex,菌株SW09、SW13为Bacillus bataviensis。菌株ZL08为Penicillium camemberti,菌株ZL13为Aspergillus fumigatus,菌株ZL04和ZL25为Penicillium chrysogenum,菌株ZL15和ZL17为Alternaria tenuissima。利用二硝基水杨酸法对菌株发酵液纤维素酶活进行研究,结果表明,菌株SW02的产酶活性较高,其羧甲基纤维素酶活为153.36 U/mL,β-葡萄糖苷酶活为126.00 U/mL,微晶纤维素酶活为17.64 U/mL,滤纸酶活为30.48 U/mL。     

超支化聚合物在印染工业中的应用

超支化聚合物具有特殊的结构和性能.其包含大量的枝化结构,可提高溶解度;其大量的链端官能团.可提高反应性.因此,超支化聚合物在纺织印染行业中的研究和应用受到广泛关注,如超支化聚合物可作为双氧水漂白稳定剂,在涂料染色和印花中作为黏合剂,与聚丙烯共混纺丝改善其可染性,对棉、麻、真丝等天然纤维改性以实现无盐染色,对纤维表面进行功能性后整理,以及利用其絮凝和螯合作用而用于印染废水处理等.     

松香胺作功能单体阳离子无皂苯丙乳液表面施胶剂的研究

以丙烯腈改性淀粉作分散剂,苯乙烯（St）为硬单体,丙烯酸丁酯（BA）为软单体,松香胺（RA）为功能单体,甲基丙烯酸二甲基氨基乙酯（DM）为阳离子单体,丙烯酰胺（AM）为交联单体,过硫酸钾（K2S2O6）为引发剂,采用无皂乳液聚合技术合成了一种阳离子苯丙乳液表面施胶剂,并对施胶纸张各种性能做了测试。最佳合成工艺是：m（St）／m（BA）=2．5,w（RA）=0．5％,w（DM）=0．9％,w（AM）=0．4％,w（K2S2O8）=0．5％,m（单体）／m（淀粉）=2。     

Biovanillin from agro wastes as an alternative food flavour

This review provides an overview of biovanillin production from agro wastes as an alternative food flavour. Biovanillin is one of the widely used flavour compounds in the foods, beverages and pharmaceutical industries. An alternative production approach for biovanillin as a food flavour is hoped for due to the high and variable cost of natural vanillin as well as the limited availability of vanilla pods in the market. Natural vanillin refers to the main organic compound that is extracted from the vanilla bean, as compared to biovanillin, which is produced biologically by microorganisms from a natural precursor such as ferulic acid. Biovanillin is also reviewed as a potential bioflavour produced by microbial fermentation in an economically feasible way in the near future. In fact, we briefly discuss natural, synthetic and biovanillin and the types of agro wastes that are useful as sources for bioconversion of ferulic acid into biovanillin. The subsequent part of the review emphasizes the current application of vanillin as well as the utilization of biovanillin as an alternative food flavour. The final part summarizes biovanillin production from agro wastes that could be of benefit as a food flavour derived from potential natural precursors.© 2012 Society of Chemical Industry     

花式纱线在国外高级女装面料中的应用

文章以2003～2006意大利高级女装面料样品为例,对国外花式纱线的纤维原料、构造形态、材质效果及其面料风格等作了分析和探讨.得出结论:国外花式纱线在设计理念上体现出较强的创意性,在纤维原料、纱线造型、色彩要素上已向复合型方向发展.花式纱线在高级女装面料中的运用紧贴流行趋势,秋冬多为雪尼尔、色纺纱、圈圈线、金银捻丝花式线,春夏多为竹节纱、双宫丝、圈圈线、金银捻丝花式线.花式纱线面料体现时尚、多元化、高品质以及立体、丰富、乡村等整体风格和富丽、都市、民族、朴实等主题风格.