Textile industry innovations in dyeing and finishing processes:Minimizing environmental impact

Textiles are one of the oldest industries in the world which has been manufacturing fabrics and materials needed for various purposes.However,the industry has been confronted with some problems regarding its pollution;specifically the dyeing and finishing processes.As for the given issues,there has been a trend in recent years to come up with more environmentally friendly solutions.

Magnetorheological finishing of low-gradient curved surfaces based on four-axis linkage technique

Based on the distribution characteristic of magnetic field along the polish wheel,the four-axis linkage technique is advanced to replace a standard five-axis one to figure low-gradient optical surfaces with a raster tool-path in magnetorheological finishing(MRF).After introducing the fundaments of such simplification,the figuring reachability of a four-axis system for the low-gradient optics was theoretically analyzed.Further validation including magnetic field intensity and influence function characteristic was performed to establish its application.To demonstrate the correctness,feasibility and applicability of such technique,a K4 spherical part was figured by two iterations of MRF with surface form error improved to 0.219λPV and 0.027λRMS.Meanwhile,the surface roughness was also improved a lot in MRF process.These theoretical analyses and experimental results both indicate that high form accuracy and excellent surface quality can be obtained by using the four-axis linkage technique in the process of figuring low-gradient optical elements,and the four-axis linkage system undoubtedly is much more easy to control and much more economical.

Application of Acid Dyestuffs with Different Molecule Structure in Combined Dyeing and Finishing of Cotton Fabric

Simultaneous dyeing and durable press finishing of cotton fabrics with acid dyes bearing the different molecule structure and durable press finishing agent (DP agent abbr.) based on modified DMDHEU were investigated by using the pad-dry-cure process. Some factors affecting the process, such as structure of acid dyes, DP agent, catalysts and curing temperature were discussed. The dyed and finished fabrics were evaluated with respect to color strength, fixation, crease recovery angle, breaking strength and fastness properties. The results indicate that structure of acid dyes has a striking effect on the color strength of dyed and finished cotton fabric. The color strength and dry crease recovery angle of dyed and finished cotton fabric increases, whereas breaking strength decreases with increasing concentration of DP agent. It is necessary for ammonium nitrate to serve as catalyst. It is found that relatively satisfactory properties of dyed and finished cotton fabric can be obtained with appropriate adjustment of treating conditions.

Present Situation and Developing Trend of China's Dyeing and Finishing Industry

1IntroductionThe dyeing and finishing process is animportant step in textile processing,which makes great contribution to theadded-value of textile and garment.The Chinese government and the textilecircles attach great importance to thedevelopment of the dyeing and finishingindustry.It has been listed as one of in-dustries that will get major support fromthe state In the last few years,sincethe government has given it

Gofront Dyeing & Finishing:“creative force” witnesses the two-decade “originality made ”

On the occasion of the 20th anniversary of the founding of Gofront Dyeing&Finishing Machinery Manufacturer Ltd.,the Documentary"Originality Made"made by CCTV-9 Discovery channel,during which Gofront Dyeing&Finishing was selected as the first dyeing and finishing equipment manufacturing enterprise in China,presented its premiere in Guangzhou,on November 24th,2017.

The Effects of Dyeing and Finishing Pretreatment Process to the Sliver Fiber Shielding Fabric and the Reasons

Through the silver fiber and cotton mixed silver fiber shielding fabric,not only soft and comfortable,it can wear personal,but also has excellent anti electromagnetic shielding effect. Fabric in dyeing and finishing process,may cause some damage on the silver fiber,influence the shielding performance of shielding fabric. Therefore,in this paper,through the experimental and analysis,find dyeing and finishing process may affect silver fiber shielding fabric and the reasons.

A fast approach to optimize dye loading of photoanode via ultrasonic technique for highly efficient dye-sensitized solar cells

A distinctive method is proposed by simply utilizing ultrasonic technique in Ti02 electrode fabrication in order to improve the optoelectronic performance of dye-sensitized solar cells （DSSCs）. Dye molecules are at random and single molecular state in the ultrasonic field and the ultrasonic wave favors the diffusion and adsorption processes of dye molecules. As a result, the introduction of ultrasonic technique at room temperature leads to faster and more well-distributed dye adsorption on TiO2 as well as higher cell efficiency than regular deposition, thus the fabrication time is markedly reduced. It is found that the device based on 40 kHz ultrasonic （within 1 h） with N719 exhibits a Voc of 789 mV, Jsc of 14.94 mA]cm2 and fill factor （FF） of 69.3, yielding power conversion efficiency （PCE） of 8.16%, which is higher than device regularly dyed for 12 h （PCE = 8.06%）. In addition, the DSSC devices obtain the best efficiency （PCE = 8.68%） when the ultrasonic deposition time increases to 2.5 h. The DSSCs fabricated via ultrasonic technique presents more dye loading, larger photocurrent, less charge recombination and higher photovoltage. The charge extraction and electron impedance spectroscopy （EIS） were performed to understand the influence of ultrasonic technique on the electron recombination and performance of DSSCs.

Knit Excellence from Goller is well-suited to all wet finishing treatments

The Knit Excellence package includes a full range of machinery for the complete treatment of knitted fabrics–Knit Complexa for bleaching,Knit Mercer for mercerisation,Knit Economica for dyeing and the versatile Sintensa washing concepts for washing after dyeing and printing.

Epiphanic Revival: Exploring Metallic Finishes on Batik Fabrics in Ghana

Batik fabric is an integral part of the traditional cloth culture of the Ghanaian traditional setting. However, the batik fabric has marginal usage due to its casual visual appearance. This studio practice seeks to explore the epiphanic revival in the use of metallic finishes on batik substrate to create an enhanced visual appearance with embellished aesthetic sensibilities and diversified use. The researchers adopted the studio-based approach of the qualitative design to manipulate handmade tools, techniques (collagraph) and the batik fabrics through experimentation to produce a glittering mercurial batik fabric which is typically an industrial practice. The studio practice took place at the Textile Design and Technology studio, Takoradi Technical University, Ghana. The traditional batik fabric was manipulated through fabric decoration techniques in accordance with studio-based practices. The Addie model was adopted as a methodological approach in the analysis, design, development, implementation, and evaluation processes of the experimentation processes of the study. Findings revealed that the hand techniques used in the production process for the metallic prints produced interesting accidentals finishes and effects that machine work cannot achieve, producing new discoveries of visual enhancements of traditional batik fabric. Traditional batiks became mercurial with glittery effects. The metallic prints on the fabric also changed its consumption pattern from mere casual fabric to classic and cosmopolitan fabric for varied uses suitable for wearable to non-wearable.

Magnifying colonoscopy as a non-biopsy technique for differential diagnosis of non-neoplastic and neoplastic lesions

AIM： To clarify whether mucosal crypt patterns observed with magnifying colonoscopy are feasible to distinguish non-neoplastic polyps from neoplastic polyps. METHODS： From June 1999 through March 2000, 180 consecutive patients with 210 lesions diagnosed with a magnifying colonoscope （CF-200Z, Olympus Optical Co., Ltd., Tokyo, Japan） were enrolled. Magnification and chromoendoscopy with 0.2% indigo-carmine dye was applied to each lesion for mucosal crypt observation. Lesions showing types Ⅰ and Ⅱ crypt patterns were considered non-neoplastic and examined histologically by biopsy, whereas lesions showing types Ⅲ to Ⅴ crypt patterns were removed endoscopically or surgically. The correlation of endoscopic diagnosis and histologic diagnosis was then investigated. RESULTS： At endoscopy, 24 lesions showed a type Ⅰ or Ⅱ pit pattern, and 186 lesions showed type Ⅲ to Ⅴ pit patterns. With histologic examination, 26 lesions were diagnosed as non-neoplastic polyps, and 184 lesions were diagnosed as neoplastic polyps. The overall diagnostic accuracy was 99.1% （208/210）. The sensitivity and specificity were 92.3% （24/26） and 99.8% （184/186）, respectively. CONCLUSION： Magnifying colonoscopy could be used as a non-biopsy technique for differentiating neoplastic and non-neoplastic polyps.

Relationship between Cellulase Treatment and Dyeing Properties of Cotton Fabrics

In our current study, effects of cellulose treatment on dyeing properties of cotton fabrics were investigated. Inhibitory effects of dyes both on the fabric substrate and in the treatment bath on celluiase catalytic effectiveness were also studied.

Using Multivariable Linear Regression Technique for Modeling Productivity Construction in Iraq

Productivity is a very important element in the process of construction project management especially with regard to the estimation of the duration of the construction activities, this study aims at developing construction productivity estimating model for marble finishing works of floors using Multivariable Linear Regression technique (MLR). The model was developed based on 100 set of data collected in Iraq for different types of projects such as residential, commercial and educational projects. Which these are used in developing the model and evaluating its performance. Ten influencing factors are utilized for productivity forecasting by MLR model, and they include age, experience, number of the assist labor, height of the floor, size of the marbles tiles, security conditions, health status for the work team, weather conditions, site condition, and availability of construction materials. One model was built for the prediction of the productivity of marble finishing works for floors. It was found that MLR have the ability to predict the productivity for finishing works with excellent degree of accuracy of the coefficient of correlation (R) 90.6%, and average accuracy percentage of 96.3%. This indicates that the relationship between the independent and independent variables of the developed models is good and the predicted values from a forecast model fit with the real-life data.

Techniques that accurately identify the sentinel lymph node in cancer

Sentinel lymph node(SLN) biopsy has become the gold standard for patients with melanoma and breast cancer but it's clinical application in other solid tumor types such as cancers of the esophagus, stomach, colon and rectum, head and neck, penis, uterine cervix and endometrium has been somewhat limited. Commonly used mapping techniques utilizing the combination of radiocolloid and blue dye may result in reduced SLN detection and increased false negative rates when applied to cancers with more complex lymphatic drainage patterns. Novel localization techniques includingnear infrared fluorescence, high resolution imaging and molecular targeted agents have been developed to address the limitations of conventional SLN detection practices in many solid tumor types. This article reviews the indications, techniques and detection rates for SLN biopsy in several different solid tumor types as well as the promising novel techniques created to address the contemporary limitations of this procedure.

Union of Heaven and Man-the Dyeing and Finishing Process

As an important part of Chinese culture,Lingnan culture,mainly those in Guangdong province,plays a key role in the world culture.Elegant Guangdong Series cover five subjects of the Lingnan cultural and traditional gems in South China.Each volume has used vivid and precious illustrations and portraits.Gambiered Canton gauze outlines the birth,evolution,dyeing and finishing process,prospect of this ethereal silk fabric in South China.

包覆交联法提升玫瑰茄红上染真丝织物色牢度的应用

文章以甲基丙烯酸甲酯、丙烯酸丁酯、2-羟基乙基甲基丙烯酸酯和甲基丙烯酰氧丙基三(三甲基硅氧烷基)硅烷为原料,合成了聚丙烯酸酯类高分子,再将整理后的织物浸于戊二醛溶液中,以达到化学接枝交联的目的,并将其作为纤维包覆材料应用于天然玫瑰茄红色素染色的真丝织物。实验结果表明:整理后真丝织物的色牢度明显提升,湿摩色牢度从2~3级提升到4级,皂洗色牢度从1~2级提到3~4级,并且整理后织物表现出较好的防水效果,水接触角从接近0°提到125°;机械性能显著改善,断裂强度从8.73 MPa提高到26.37 MPa。

涤纶织物分散荧光黄染色及易去污整理

为了改善荧光黄染色涤纶织物的易去污性,以色度坐标和亮度因子β为指标,优化染色工艺和易去污整理工艺。结果表明,荧光黄10G对涤纶织物最佳染色工艺条件为:染料质量分数1.0%(omf),染浴pH为5,染色温度130℃,染色时间40 min;最佳易去污整理工艺为:整理剂质量浓度40 g/L,焙烘温度150℃,焙烘时间60 s。整理后的涤纶织物经10次洗涤后易去污性仍达4级,经30次洗涤后其荧光性能仍可满足相关标准要求,且耐皂洗色牢度和耐摩擦色牢度均达到4级以上。

“新工科”背景下深入融合数字化的染整专业实践模块改革与创新

实践教学在高校的人才培养过程中占有十分重要的地位。根据目前盐城工学院纺织服装学院染整专业实践模块存在的课程体系单一,教学模式陈旧和学生素质能力有待提高问题,结合信息时代教育数字化转型,构建“3新”即“课程新结构、教学数字化新模式、实践新平台”的实践创新能力培养路径,满足学生多样化成才需求,实现学生科学素养、创新、实践能力的提高。通过不断的实践锻炼,提高工程实践能力,增强创新意识,解决染整工程领域复杂问题,达到“新工科”背景下的人才培养目标,成为新时代具有中国特色社会主义的合格建设者和接班人。

亚麻面料仿旧色彩生态染整研究

为满足亚麻面料利用自带色素达到表面泛白仿旧色彩和柔软手感的需求,研究亚麻面料表面氧漂、再退煮的工艺处方及条件。结果表明,100%双氧水用量为3.0%、渗透剂JFC用量为2.0%、精练粉TF135A用量为10.0%、汽蒸时间30 min,亚麻面料底面色素保留,色牢度好,表面泛白,仿旧效果好;退煮酶TF-165用量为2.0%、60℃处理40 min,面料的毛效为8.18 cm,达到服用要求。

日本桥梁施工工艺技术

针对桥梁结构特点和现场施工条件,日本桥梁技术人员在桥梁施工工艺技术方面做了一些有益的尝试。鹫见桥Ⅱ期工程最高墩高125 m,采用预先在工厂制作部分预制构件的方法,加快了施工进度;Ⅱ期、Ⅰ期工程桥梁间距仅50 cm,为避免Ⅱ期工程施工对Ⅰ期工程运营造成影响,采用了智能预警监控系统。日见梦大桥桥塔端斜拉索采用钢锚箱锚固,塔柱混凝土浇筑采用透明模板监控混凝土浇筑质量。杨梅山高架桥支点梁段采用分层浇筑以及钢筋部品化预制安装等施工工艺,缩短了工期。思惟花笑大桥为主跨150 m的连续刚构桥,最高墩高93 m,箱梁腹板与底板相交处钢筋密集,为确保混凝土填充密实,采用混凝土填充模拟系统确定最佳浇筑方法;该桥跨度大、墩身高,混凝土泵送距离长,通过多项混凝土工艺试验,提高了长距离泵送悬臂浇筑施工质量;采用新研发的三眼照相机对钢筋绑扎质量进行检测,实现了钢筋检测作业自动化。

GMA改性磷酸腺苷的制备及其对棉织物的阻燃整理

采用甲基丙烯酸缩水甘油酯(GMA)分别对一磷酸腺苷(AMP)、二磷酸腺苷(ADP)、三磷酸腺苷(ATP)进行改性,制得了3种带有不饱和双键的阻燃单体AMP-m-GMA、ADP-m-GMA、ATP-m-GMA;然后通过紫外光接枝法将3种阻燃单体分别接枝到棉织物上,制备了光接枝AMP-m-GMA、ADP-m-GMA和ATP-m-GMA阻燃棉织物;对3种阻燃单体进行了结构表征和热稳定性分析,并探究了3种阻燃单体光接枝阻燃棉织物的热稳定性、阻燃性能、燃烧行为和残炭结构。结果表明,3种磷酸腺苷通过GMA环氧基开环引入不饱和双键,且具有良好的热稳定性。相比于原棉织物,3种阻燃棉织物的最大热降解速率分别降低了60.0%、52.0%、60.0%,极限氧指数由16.1%分别提升到25.4%、27.4%、26.4%,织物热释放速率(HRR)分别下降了15.09%、60.47%、37.82%,说明3种磷酸腺苷阻燃单体均有助于棉织物形成致密炭层,阻止热量扩散,获得良好的阻燃效果。其中,光接枝ADP-m-GMA阻燃棉织物的增重率可达22.4%,燃烧后损毁长度缩短至14.2 cm,表现出更优异的阻燃性能。