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1.
任亮  李淳 《印染助剂》2006,23(11):33-35
研究了经壳聚糖处理后亚麻织物的染色性能,采用扫描电镜观察表面形貌变化来分析壳聚糖处理对亚麻织物表面的作用和影响.讨论了壳聚糖用量、浸渍温度、焙烘温度和时间对亚麻染色性能的影响.结果表明:亚麻织物经壳聚糖处理[壳聚糖用量0.3%(owl),浸渍温度80℃,焙烘(100℃,3min)后,活性染料上染率有所提高.  相似文献   

2.
采用染色和涂料满地印花的方法生产双面双色产品,以防染料从一面渗透到另一面,对其前处理、染色和印花工艺进行探讨,并阐述了生产操作要点。  相似文献   

3.
包燕梅 《印染》2004,30(19):15-16
根据涤棉大提花交织物的组织规格特点,前处理采用不烧毛、不定形工艺。染色则采用分散/活性连续工艺流程。并就不同染色工艺处方下的染色效果进行讨论,给出了最佳工艺条件。  相似文献   

4.
将自制阳离子蛋白衍生物助剂WLS-20应用于4种活性染料和2种直接染料染色棉织物后处理工艺中(固色和皂洗),研究了WLS-20助剂对皂洗后处理时色布和白布K/S值的影响,以及对处理后织物耐皂洗色牢度及耐摩擦色牢度的影响,评价了WLS-20助剂在活性和直接染料染色棉织物后处理中的应用效果。结果表明:WLS-20助剂不仅可以应用于染色织物的固色阶段,而且还可以应用于皂洗后处理中,该助剂应用于此2个阶段均可以提高活性染料和直接染料染色棉织物的固色效果,减少皂洗时对白布的沾色,并有效提高棉织物的耐洗色牢度和耐摩擦色牢度,尤其对直接染料染色棉织物的固色、防沾色效果提高幅度更大。而且在染色织物的固色阶段和皂洗浴中均使用WLS-20助剂,固色、防沾色效果会更好。  相似文献   

5.
竹纤维针织物的染整工艺研究   总被引:3,自引:0,他引:3  
针对竹纤维针织物的特性,需对其进行特殊的染整加工。通过与棉纤维染色性能的比较,筛选了几种环保型、高牢度的活性染料,并确定了其优化的前处理及染色工艺条件。  相似文献   

6.
朱华  周翔  邰文峰 《印染助剂》2007,24(7):43-45
阐述了测定全棉织物耐洗色牢度的必要性,比较了中国、国际标准组织(ISO)、美国、日本对全棉织物而寸洗色牢度测定标准之间的差异,通过试验探讨了不同方法对全棉织物耐洗色牢度测定结果的影响.  相似文献   

7.
研究了各种糊料、粘合剂、纳米遮盖剂及其他配套助剂的拔染印花性能,制成了种适用于真丝绸涂料拔染印花的专用复合浆,并应用纳米遮盖剂来提高涂料对地色的遮盖性,改善涂料的色牢度和色泽鲜艳度;生产的拔染印花产品手感柔软、色泽鲜艳、花纹精致,耐皂洗色牢度、耐摩擦色牢度均达到4级以上.  相似文献   

8.
针对活性染料轧染存在前后色差问题,从染料的直接性、半制品的含潮率及固色碱液中染料的加入量等方面,探讨了活性染料轧染同一批次内前后色差产生的原因,提出除测定单只染料的比移值外,还应在处方确定后,测定染液中各染料的扩散是否同步,以判断拼色的合理性,选择比移值较大的染料;前处理烘干落布应采用大卷装加包布;固色时初开车染料的加入量与染色深度成近似线性关系。  相似文献   

9.
以艾蒿色素为染料,采用直接法和后媒染法对丝织物进行染色。测试染色织物的防紫外线性能和抗菌性能。实验结果表明,艾蒿染色丝织物对紫外线UVB的防护效果明显好于对紫外线UVA的防护效果;艾蒿染色丝织物对大肠杆菌和金黄色葡萄球菌均有较好的抑菌效果。  相似文献   

10.
目的 探究自制富硒无花果提取物片的急性毒性及其体外肿瘤增殖抑制和诱导凋亡作用。方法 以富硒无花果为原料自制富硒无花果提取物片。采用SD大鼠进行急性经口毒性试验。体外用细胞计数试剂盒(cell counting kit-8, CCK-8)法观察富硒无花果提取物片对4种人源性肿瘤细胞[肺腺癌A549、肝癌(hepatitis, Hep) G2、结肠癌HCT116、乳腺癌MDA-MB-231]增殖的影响, 并采用流式细胞术分析其对细胞周期的影响。结果 富硒无花果提取物片对SD大鼠急性经口LD50大于10 g/kg?bw, 为实际无毒级别。富硒无花果提取物片对HepG2、HCT116、MDA-MB-231增殖抑制作用不明显, 对A549的最高抑制率为14.15%(P<0.05), 量效关系显著; 流式细胞术周期分析表明其对A549细胞周期无明显影响(P>0.05), 降低HCT116S期细胞比例, 降低HepG2G0/G1的细胞数目降低, 增加S期的细胞数目(P<0.05)。结论 富硒无花果提取物片急性经口毒性为实际无毒级别, 对肺腺癌A549具有增殖抑制作用, 能将肝癌HepG2细胞的生长周期阻滞在S期。  相似文献   

11.
棉针织物-浴练染工艺   总被引:1,自引:2,他引:1  
邹志奇  李洪源 《印染》2007,33(22):26-27
利用一浴练染剂LR对织物的强渗透、溶胀作用,并藉染浴中的碱剂,对棉针织物一浴练染,大部分色泽可以达到生产要求,适宜加工易产生折痕的布种,加工后受损程度小,该工艺节能、高效。  相似文献   

12.
采用改良寇氏法测试了1,8-桉叶油素对小鼠的急性毒性,并采用固定剂量蓄积毒性系数法测试了其蓄积毒性。结果表明,1,8-桉叶油素对小鼠经口半数致死剂量(LD50)为3847.34mg/kg.bw,95%置信限为3352.804414.82mg/kg.bw,急性中毒主要靶器官为肝脏和肾脏;小鼠蓄积性毒性实验所得蓄积系数K>5,与对照组相比,1,8-桉叶油素对小鼠饲料利用率与脏器系数无明显影响(p>0.05),对脏器无明显不良影响。可见1,8-桉叶油素对小鼠属于低毒化学物质,无明显蓄积毒性。   相似文献   

13.
A new approach for simultaneous salt-free dyeing and functional finishing, i.e. UV protection and antibacterial properties of cotton fabric were studied. In this study, cotton fabric was cationized with 3-chloro-2-hydroxypropyl trimethylammonium chloride. Two types of reactive dyes (CI Reactive red 120 and CI Reactive yellow 145) were doped with different amounts (0.035, 0.053, and 0.07 mol) of TiO2 nano-sol by sol–gel method and applied on cationized cotton fabric using pad–dry–steam method without the addition of salt. The chemical and morphological structures of the dyed fabrics were characterized by attenuated total reflection-Fourier transform infrared, scanning electron microscopy, transmission electron microscopy, and X-ray diffractometry. Different properties were investigated such as color strength, fixation, fastness properties (washing, rubbing, and light), UV blocking, antibacterial activity, and tensile strength. Samples dyed with titanium dyeing solutions exhibited better antibacterial efficacy and durable UV protection, with minimal impact on color depth and tensile strength compared with the samples dyed with commercial reactive dyes.  相似文献   

14.
The synthesis of a series of alkyl and arylesters of 1,3,3,-trimethyl-2-oxabicyclo[2.2.2]octan-6-ols (2-cineolylols) is described. All cineole esters obtained were tested for their olfactive character; the esters derived from aryl acyl chlorides were odourless, while aliphatic esters showed interesting multipurpose aromas. Some of these compounds exhibited fruity, woody, green, pine oil and violet-like notes and some showed aromas interesting for foodstuffs. In vitro toxicity tests were carried out on the cyclopropyl ester of 2-cineolylols, the most promising of these compounds as a potential perfume ingredient. In this study, cultured mouse fibroblast L-929 and human keratinocyte NCTC 2544 cell lines were used. The results obtained with the evaluation of three different physiological end points showed that the tested compound possess much lower cytotoxicity than sodium dodecylsulphate (SDS) used as positive control  相似文献   

15.
This work investigated the influence of fibre, yarn and fabric parameters on the UV protection of fabrics. It proposed a model for UV interaction based on a theoretical hypothesis, targeted experimentation and statistical analysis. Undyed and untreated wool-knitted fabrics with varying mean fibre diameter, yarn linear density, yarn twist, fabric cover factor and fabric structure were examined. A statistical model was presented to report the relationship between fibre/yarn/fabric parameters and fabric UPF values. An optical model on the interaction between the UV light and a single jersey fabric was constructed to understand the penetration of UV light. The models were verified by the UV transmittance results of knitted wool fabrics. The results obtained from the statistical and optical models were used to propose a set of optimized parameters for lightweight summer/spring UV-protective knitted fabrics. Testing confirmed that these fabric parameters provided both high UV protection and good tactile comfort.  相似文献   

16.
《食品工业科技》2013,(06):385-388
3-氯-1,2-丙二醇(3-MCPD)作为一种公认的食品污染物已有数十年之久。随着对3-MCPD的深入研究,在越来越多的食品中检测出较高含量的3-MCPD。最近的研究发现3-MCPD更多地以酯化形式存在于咖啡、婴幼儿配方奶粉及食用油等很多食品中。这些存在于食品中的3-MCPD脂肪酸酯(3-MCPD酯)在一定条件下能够释放3-MCPD,从而引起对机体的毒性作用。目前已有研究报道了3-MCPD棕榈酸单酯在动物体内的急性毒性作用和细胞毒性作用,因此,进一步深入研究3-MCPD酯的毒性显得尤为重要。本文对3-MCPD酯在食品中的存在及影响因素、检测方法、代谢转化以及毒性研究进行了综述。   相似文献   

17.
The increasing need of on-demand power for enabling portable low-power devices and sensors has necessitated work in novel energy harvesting materials and devices. In a recent work, we demonstrated the production and suitability of three-dimensional (3-D) spacer all fibre piezoelectric textiles for converting mechanical energy into electrical energy for wearable and technical applications. The current work investigates the textile performance properties of these 3-D piezoelectric fabrics including porosity, air permeability, water vapour transmission and bursting strength. Furthermore, as these textiles are intended for wearable applications, we have assessed their wear abrasion and consequently provide surface resistance measurements which can affect the lifetime and efficiency of charge collection in the piezoelectric textile structures. The results show that the novel smart fabric with a measured porosity of 68% had good air (1855 l/m2/s) and water vapour permeability (1.34 g/m2/day) values, good wear abrasion resistance over 60,000 rotations applied by a load of 12 kPa and bursting strength higher than 2400 kPa. Moreover, the antibacterial activity of 3-D piezoelectric fabrics revealed that owing to the use of Ag/PA66 yarns, the textiles exhibit excellent antibacterial activity against not only Gram-negative bacteria E. coli but they are also capable of killing antibiotic methicillin-resistant bacteria S. aureus.  相似文献   

18.
目的 研究绿茶提取物(green tea extract,GTE)、乌龙茶提取物(oolong tea extract,OTE)和红茶提取物(black tea extract,BTE)对2,4-二氯苯氧乙酸(2,4-Dichlorophenoxyacetic acid,2,4-D)导致的斑马鱼胚胎发育毒害的影响。方法 用50 mg/L 2,4-D分别联合6.25、12.50和25.00 mg/L GTE,6.25、12.50和25.00 mg/L OTE以及50、100和150 mg/L BTE处理斑马鱼胚胎至96 hpf(hours post fertilization),体视显微镜观察斑马鱼胚胎发育并统计孵化率、死亡率、畸形率,测定斑马鱼心跳次数、体长、卵黄和心包面积。结果 各处理组斑马鱼胚胎孵化正常。除2,4-D + BTE处理组随BTE浓度提高死亡率升高,其他处理组没有发生显著死亡。GTE降低2,4-D导致的斑马鱼胚胎畸变率,提高2,4-D导致的心跳下降和体长缩短,缩小2,4-D导致的卵黄和心包面积;相反,BTE加重2,4-D导致的斑马鱼胚胎形态发育毒害;而OTE对2,4-D导致的斑马鱼胚胎发育毒害无明显影响。结论 GTE、OTE和BTE对2,4-D导致的斑马鱼胚胎发育毒害分别具有拮抗作用、无作用和协同作用。  相似文献   

19.
染料结构与氨纶的染色性探讨   总被引:2,自引:0,他引:2  
王惠珍 《丝绸》2002,(7):12-14
采用中性、弱酸性、分散、活性染料对氨纶进行染色,并对染料分子结构及IOB值与氨纶染色性能的关系进行了探讨。结果表明,一般分散染料和1:2金属络合结构中性染料的染色性能优良,部分弱酸性染料镒之,活性染料染色性差。具有类似结构的染料,随着IOB值降低,即疏水性增加,上染率呈增高趋势。  相似文献   

20.
新型无甲醛固色剂X对直接和活性染料的固色性能研究   总被引:1,自引:0,他引:1  
研究了一种新型无甲醛固色剂X的合成以及它对直接染料和活性染料的浸渍法和浸轧法固色,得出各自的最佳固色工艺和固色效果.  相似文献   

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