共查询到20条相似文献,搜索用时 140 毫秒
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将涂料染色后的棉织物用酸性纤维素酶进行处理,研究纤维素酶蛋白在织物上的吸附和水解能力.试验结果表明,涂料会增加织物与酶蛋白的亲和力,导致酶蛋白吸附量增加,但同时也会降低其对纤维素分子链的可及性,导致其水解活力下降;纤维素酶处理会使涂料染色棉织物的颜色发生一定改变,但对色牢度无明显影响;随着处理时间的延长,织物的失重率和强力损失逐渐增大. 相似文献
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在酸性纤维素酶液中分别加入1%(对溶液质量)的硫脲、硫氰酸钠、亚硫酸钠、亚硫酸氢钠、焦亚硫酸钠、连二亚硫酸钠、硫氢化钠、硫化钠等8种不同的硫化物,在温度40、50、60℃,pH=4.5、5.0、5.5的条件下,根据中心复合试验设计方案测定滤纸酶活力,并用Minitab软件分析各种硫化物对纤维素酶活力的影响.在相同的条件下对纯棉针织物进行酶处理,测定处理前后织物的顶破强力、毛羽去除率、处理残液葡萄糖含量来评价对织物的实际作用效果.结果表明,硫化物的加入可以小幅提高纤维素酶活力、扩大酶的温度和pH作用区间,但除了亚硫酸钠和连二亚硫酸钠外,其他6种硫化物的加入反而降低了织物的除毛效果. 相似文献
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研究了棉常用染料与纤维素酶Cellulase A的相互作用。根据染料-酶溶液的吸收光谱分析,纤维素酶Cellulase A与染料无生成络合物的迹象;而酶处理对织物染色色度影响的试验结果则表明,对于酶处理后染色工艺和染色后酶处理工艺,与常规染色工艺相比,前者大部分织物得色变浅,明度增加,艳度稍下降,色相角在同一象限,色相相近;进一步的分析是,纤维素酶处理对还原、直接染料染色织物的总色差影响较大,△E值在2~4.5间;对活性染料染色织物总色差影响较小,△E均在1左右。 相似文献
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开发亚麻纤维的阳离子染料染色新工艺,以亚硫酸氢钠溶液对经高碘酸钠氧化处理的亚麻纤维进行阴离子改性,将改性后的亚麻纤维用阳离子染料进行染色.通过吸附等温线的绘制、染色饱和值和染色亲和力的计算,研究了改性亚麻纤维的染色热力学机理.结果表明:阳离子染料对阴离子改性亚麻纤维上染的吸附等温线与朗缪尔吸附等温线特征相符,佐证了具有磺酸基的改性亚麻纤维与阳离子染料之间发生了静电吸附,染色后的改性亚麻织物具有良好的匀染性、染色牢度和颜色鲜艳度,证明了阳离子染料对改性亚麻纤维染色的可行性. 相似文献
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单根纤维的刚度,织物表面的毛羽数量和长度,织物组织的稀密程度及染整国呀的影响是苎麻织物产生刺痒感的主要原因。通过采取退浆后第2次烧毛,用烧碱和氨使纤维变性,纤维素酶减量处理、水洗,砂洗、石磨,柔软,防皱等后整理工艺,使苎麻织物的服用性能得到改善和提高。 相似文献
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纳米TiO_2在织物后整理中的应用 总被引:12,自引:2,他引:10
讨论了纳米TiO2在纺织品抗菌、抗紫外线辐射整理中的作用机理以及在纯棉织物上的应用。结果表明,整理后织物经30次水洗后对金黄葡萄球菌和大肠杆菌的抑菌率为100%,对白色念球菌的抑菌率大于90%,整理后染色布和未染色布的紫外透过率为5%,达到了最小饱和值;纳米TiO2赋予织物优良的抗菌、抗紫外效果,且服用性能不受影响。 相似文献
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In order to explore the utilization of persimmon juice-dyed T-shirts under vigorous sports activities, persimmon juice-dyed and undyed cotton knitted T-shirts were compared in terms of comfort-related physical properties such as moisture transport characteristics and wear performances including sweat amount, moisture uptake of clothing, and subjective sensation such as thermal, humidity, and overall comfort. As results, persimmon juice-dyed T-shirt material showed the improvement of air permeability, water-vapor permeability, and moisture regain while it gave lower values for wickability and dynamic water absorption rate than undyed one. As for wear performance under a vigorous activity, human subjects seemed to sweat less in wearing dyed shirts than in undyed ones, which means that persimmon juice-dyed shirts seemed to give less physiological heat stress than undyed ones. Subjects felt no difference between dyed and undyed shirts in subjective sensation, hence it could be said that, under a vigorous condition, persimmon juice-dyed shirts could not provide subjective sensory differences from udyed ones. 相似文献
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Sirospun yarn production is a new approach to produce two‐folded and twisted yarns. This method integrates the spinning and folding action in a single step. Therefore, it may have some important advantages such as simplicity of the process, lower production costs, lower investment, space saving, etc. The purpose of the study is to compare the color fastness and colorimetric properties of sirospun yarn, single and two‐folded ring spun yarns produced by same cotton fiber blend. Therefore, three reactive dyes were applied at 1% omf (on mass of fabric) depth of shade to the single jersey fabrics which are produced by sirospun yarn, single and two‐folded ring spun yarns at three different counts. The examination of color coordinates of undyed and dyed samples on CIELAB color space shows that undyed sirospun fabrics show slightly higher whiteness than both undyed single and two‐folded ring fabrics for all three yarn counts. Also, the color strength values of the samples are determined as slightly different for all three dyes. The experimental studies show that sirospun yarns have no disadvantages with respect to conventional folded and twisted yarns when their fastness properties were compared. 相似文献
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从商陆茎中提取天然色素,用于羊毛织物的染色。研究不同色素用量、pH值、温度对羊毛织物染色性能的影响,探讨了商陆色素在羊毛纤维上的吸附机理以及染色织物的牢度。研究表明,羊毛织物的K/S值随着商陆色素量的增加而提高,当色素用量大于6%后,织物的K/S值基本不变。羊毛织物的K/S值随pH的升高而降低,当pH<3.5时,羊毛的K/S值较大,染色深度较深;当pH>4.5后,色素的上染率很低。染色温度低于60℃时,染色织物呈玫瑰红色,染色温度高于60℃后,染色织物偏黄色。低温染色时,织物的水洗牢度较低;高温染色时,牢度有所提高。 相似文献