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Influence of dispersing agents on adsorption and desorption rate of a disperse dye on polyester 分散剂对分散染料在聚酯上吸附和解吸速率的影响
Pub Date : 2020-10-05 DOI: 10.15406/JTEFT.2020.06.00249
Md. Koushic Uddin, S. Hossain, U. Habiba, Nafiur Rahman, Rayhan Mahmud
Dispersing agents play important roles in polyester dyeing with disperse dyes. The purpose of this work is to determine the influence of dispersing agents on the adsorption and desorption rate of polyester dyeing with CI Disperse Blue 284. Polyester fabric was dyed at HTHP method using two types of dispersing agents at different concentrations. The performances studied were the changes in dye transfer rate, K/S values of the dyed samples and dye bath concentration. The rate of adsorption and desorption of disperse dyes were affected significantly not only by the type but also the concentration of dispersing agents.
分散剂在聚酯分散染色中起着重要的作用。本研究的目的是确定分散剂对CI分散蓝284染色涤纶吸附解吸率的影响。采用两种不同浓度的分散剂对涤纶织物进行高温高压染色。研究了染料转移速率、染色样品的K/S值和染色液浓度的变化。分散染料的吸附和解吸速率不仅受分散剂种类的影响,还受分散剂浓度的影响。
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引用次数: 0
Investigation on mechanical properties and water absorbency of jute glass reinforced epoxy composite 黄麻玻璃增强环氧复合材料力学性能及吸水性能研究
Pub Date : 2020-10-05 DOI: 10.15406/JTEFT.2020.06.00250
Md. Koushic Uddin, M. A. Chowdhury, S. Hossain, Z. Islam, M. Sardar, Arnab Singha Ami, Farhana Naowrin Tasnia
Fiber reinforced composite materials are attractive because of their properties such as high toughness, water resistance and can be adapted to meet the specific needs of a variety of applications. Incorporation of natural fibers can reduce the dependency over synthetic fibers. In this work, Jute glass fiber reinforced composites are fabricated by simple hand lay-up technique using epoxy resin as a matrix and various mechanical properties like tensile strength, flexural strength, impact strength and also the water absorption properties of the composite specimens are evaluated and analysed thoroughly. It is observed that incorporation of optimum amount of jute fibre with glass fibre improved mechanical properties can be achieved. Finally cost of composites are analysed and compared.
纤维增强复合材料因其高韧性、耐水性和可适应各种应用的特定需求等特性而具有吸引力。天然纤维的掺入可以减少对合成纤维的依赖。在这项工作中,以环氧树脂为基体,通过简单的手工铺层技术制备黄麻玻璃纤维增强复合材料,并对复合材料试样的各种力学性能,如拉伸强度、弯曲强度、冲击强度和吸水性能进行了全面的评估和分析。结果表明,在黄麻纤维中掺入适量的玻璃纤维,可以改善黄麻纤维的力学性能。最后对复合材料的成本进行了分析和比较。
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引用次数: 2
Role of heat setting and finishing treatment on mechanical properties and hand behavior of stretch fabric 热定型和整理对弹力织物力学性能和手性的影响
Pub Date : 2020-09-18 DOI: 10.15406/JTEFT.2020.06.00247
Meenakshi Ahirwar
This research deals with the effect of heat setting on mechanical properties of the woven fabrics containing spandex. The heat setting treatment given to stretchable fabrics is an important factor in deciding the eventual mechanical comfort properties of the garment. However, finishing treatment also influence fabric mechanical properties as well as hand behavior of the fabric. In this research, the relative potential of both finishing treatment and heat setting process were investigated in order to set appropriate and cost effective finishing route to cotton stretch woven fabric. A total of three woven samples were produced using the same construction parameters. The 100% cotton warp yarns spun on open end spinning system were used. The weft yarns were the cotton wrapped spandex-core spun yarns. The different processing routes were followed to study the effect of heat setting and finishing process. The fabrics without heat set exhibits higher values for all mechanical properties required for clothing i.e. higher elongation, lesser growth, higher tensile and tear strength, and larger crease recovery angle without any remarkable increase in shrinkage potential both in warp and weft directions. The fabrics without heat set exhibits higher total hand value than heat set treated fabrics for summer wear application. Very limited research studies have been reported with respect to the stretch fabrics. Therefore, a novel attempt has been made in this research work to investigate the role of important processes like heat setting and finishing on the behavioral properties of ‘stretch woven fabric’.
研究了热定型对含氨纶机织物力学性能的影响。对可拉伸织物的热定型处理是决定服装最终机械舒适性能的一个重要因素。然而,整理处理也会影响织物的机械性能以及织物的手性。在本研究中,探讨了后整理和热定型工艺的相对潜力,以确定合适的和经济有效的棉弹力机织物后整理路线。使用相同的结构参数,共生产了三种编织样品。采用全棉开端纺纱系统纺成的经纱。纬纱为棉包氨纶芯纺纱。采用不同的加工路线,研究了热定型和精加工工艺的影响。没有热定型的织物表现出更高的服装所需的所有机械性能,即更高的伸长率,更小的生长,更高的拉伸和撕裂强度,更大的折痕恢复角,而经纬方向的收缩潜力没有显著增加。没有热定型的织物在夏季穿着应用中表现出比热定型处理的织物更高的总手值。关于弹力织物的研究报道非常有限。因此,本研究尝试探讨热定型和整理等重要工艺对“弹力机织物”行为性能的影响。
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引用次数: 0
Mosquito repellent finishes on textile fabrics (woven & knit) by using different medicinal natural plants 用不同的药用天然植物对纺织织物(梭织和针织物)进行驱蚊整理
Pub Date : 2020-08-21 DOI: 10.15406/JTEFT.2020.06.00246
Rony Mia, Mynul Islam Sajib, Burhan Uddin Banna, R. Chaki, S. Alam, Abu Rasel, Tanjirul Islam
In textile, Finishing is one of the significant processes which augment the performance of the fabric and functional properties as well. Health is always thought to be an indispensable requirement for human beings to live without any stress and it aids to give the best output of any work. Hygiene is also one of the important elements to live comfortably. A mosquito repellent textile protects the human beings from the bite of mosquitoes and ensures safety from the diseases like malaria and dengue fever. Medicinal plants like neem (Azadirachta indica), tulashi (Ocimum tenuiflorum) & mint-leaf (Mentha) etc. are used for induction of organic mosquito repellent activity and all of them are ecofriendly. This project is an exiguous endeavor in developing an eco-friendly mosquito repellent finished fabric using the herbal extract from neem, tulshi and mint-leaf .The extracted chemicals are finished on to the fabric by pad-dry-cure process & exhaust process and are evaluated using a mosquito repellency activity test .Then the repellency behavior of fabrics were checked after washing at three intervals – 5th,7th & 9th washes .Finally, the finished fabrics showed a great amount of mosquito repellent activity for both knit and woven fabric which was calculated in percentage.
在纺织品中,整理是提高织物性能和功能性能的重要工艺之一。健康一直被认为是人类生活中必不可少的条件,没有任何压力,它有助于任何工作的最佳产出。卫生也是舒适生活的重要因素之一。一种驱蚊纺织品可以保护人类免受蚊子的叮咬,并确保人们免受疟疾和登革热等疾病的侵害。药用植物如楝树(印楝),土拉石(山茱萸)和薄荷叶(薄荷)等用于诱导有机驱蚊活性,它们都是生态友好的。本项目以印度楝树、土石、薄荷叶植物提取物为原料,采用垫干固化法和排气法将提取的化学物质涂在织物上,并通过驱蚊活性试验对织物进行评价,然后在第5次、第7次、第9次洗涤后对织物的驱蚊性能进行检测。经整理后的织物对针织物和机织物均表现出很强的驱蚊活性,并以百分数计算。
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引用次数: 9
Theoretical study of the process of interaction of particles of weed impurities in the flow of raw cotton with the working bodies of the cleaning machine 原棉流中杂草杂质颗粒与清洗机工作体相互作用过程的理论研究
Pub Date : 2020-07-28 DOI: 10.15406/JTEFT.2020.06.00244
Abdurakhmonov Akmalzhon Akbarovich, Gaybnazarov Egamnazar Eryigitovich
The article proposes to use the Euler equations to describe the motion of a stationary flow in the cleaning zones, which allows determining the laws of pressure, density and velocity distribution along the arc of contact of a moving layer of raw cotton with a mesh surface in the process of impact impact with spikes on the pulp. It has been established that the pressure, densities and flow rates along the cleaning arc as a result of hammer spikes vary in steps, with a decrease in pressure and density and an increase in the flow velocity along this arc.
本文提出用欧拉方程来描述固定流在清洗区内的运动,从而可以确定具有网状表面的原棉运动层在对纸浆产生尖峰冲击的过程中,其压力、密度和速度沿接触弧的分布规律。已经确定,由于锤钉的影响,沿清洗弧的压力、密度和流速呈阶梯变化,沿清洗弧的压力和密度下降,流速增加。
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引用次数: 0
Some open questions of evaluation of comfort properties of functional clothing 功能性服装舒适性评价的若干开放性问题
Pub Date : 2020-07-28 DOI: 10.15406/JTEFT.2020.06.00243
L. Hes
In the paper, several relatively new aspects of testing of functional clothing are discussed, such as the effect of moisture and testing time on water vapour permeability of fabrics as well as the effect of the testing time on thermal resistance value of fabrics tested in Skin Model type testers. Also the difference between thermal resistance and thermal absorptivity of fabrics was explained. It was concluded, that there are still some unsolved problems in the above areas, which should attract the attention of textile scientists and technologists.
本文讨论了功能服装测试中相对较新的几个方面,如湿度和测试时间对织物透气性的影响,以及测试时间对皮肤模型型测试仪测试织物热阻值的影响。说明了织物的热阻和吸热性能的区别。总结认为,在上述领域仍有一些有待解决的问题,应引起纺织科技工作者的重视。
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引用次数: 3
An extensive analysis of the health hazards for RMG workers in apparel sector of Bangladesh 对孟加拉国服装部门RMG工人健康危害的广泛分析
Pub Date : 2020-07-27 DOI: 10.15406/JTEFT.2020.06.00242
Rony Mia, T. Ahmed, Navid Tanjim, Azhar Waqar, M. Hasan, Anik Das, A. Shamim, K. Jahan
Since the 1980s, the Ready-Made Garment (RMG) industry in Bangladesh has encountered fast development and is at present positioned the second most elevated exporter on the planet after China. The RMG business has made a generous commitment to the economy and society by fundamentally giving a wellspring of work to around over 4,000,000 laborers, for the most part, ladies. This amazing development is subverted by the absence of safety in the factories and industrial accidents, which has defined the health hazards associated with the RMG division. These mishaps stunned the nation and the worldwide network. Because of these mishaps, the Government of Bangladesh and the advancement accomplices have prepared extraordinary help and made responsibilities to improve working conditions and worker's safety in the RMG business in Bangladesh. This paper is an endeavor to confirm the advancement and execution level of various activities taken by Bangladesh Government and the worldwide purchasers and retailers of RMG explicitly in the field of occupational health hazards, for example, health and hygiene, safety, other issues of health, hygiene and safety, welfare as well as OHS management system & training. A useful study was done straightforwardly on RMG laborers to rough their insight level on consistency factors and their comprehension and acknowledgment of the current acts of occupational health hazards and safety in RMG manufacturing plants.
自20世纪80年代以来,孟加拉国的成衣产业发展迅速,目前已成为仅次于中国的全球第二大成衣出口国。RMG企业从根本上为400多万名劳动者(其中大部分是女性)提供了工作的源泉,对经济和社会做出了慷慨的承诺。这一惊人的发展被工厂缺乏安全保障和工业事故所颠覆,这已经定义了与RMG部门相关的健康危害。这些事故震惊了全国和全世界的网络。由于这些事故,孟加拉国政府和进步帮凶准备了特别的帮助,并承担了改善孟加拉国RMG业务的工作条件和工人安全的责任。本文旨在明确孟加拉国政府和RMG的全球采购商和零售商在职业健康危害领域所采取的各种活动的推进和执行水平,例如健康与卫生、安全、其他健康、卫生与安全、福利问题以及OHS管理体系和培训。本研究直接以RMG劳工为研究对象,了解他们对一致性因素的认知程度,以及对RMG制造工厂目前职业健康危害与安全行为的理解与认知程度。
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引用次数: 8
Entrepreneurial Development in Handloom Sector through Effective Strategy Formulation: An Empirical Study in Odisha, state of India 基于有效战略制定的手织机行业创业发展:印度奥里萨邦的实证研究
Pub Date : 2020-07-24 DOI: 10.15406/JTEFT.2020.06.00241
S. Tarai
The handloom sector is yet to produce an ample size of entrepreneurship despite its potential in the globalization era. However, even after continuous intervention by the Government and other entities, the sector has miserably failed in creating an entrepreneurial climate for the community. The study identifies numerous factors responsible for these conditions and suggests suitable interventions and strategies to alter the situation that exists. Therefore, two prominent handloom clusters have been taken in India and the primary study was conducted in both the clusters using a qualitative approach. The findings of the study reveal a that number of skilled and semi-skilled weavers express to join as an entrepreneur if their issues and development factors like better credit system, a research center for trend forecasting at the local level, technological upgradation, regular quality training, feeling of ownership of stakeholders, and incubation center, etc., could be taken care of by the Government and other private-entity companies and NGOs. Besides, most of the master weavers claim that lack of getting entrepreneurial status is debarred from the government benefits although they are already into handloom enterprises. Although the Government has many schemes for their upliftment, not a single weaver from the communities, has registered himself as a business entity under the companies' act or even operate as a sole proprietor. So, there is an opportunity for entrepreneurship in the cluster if impeding issues are considered and implemented.
尽管手摇织机行业在全球化时代具有潜力,但尚未产生足够规模的创业精神。然而,即使在政府和其他实体不断干预之后,该部门在为社区创造创业气氛方面仍然惨败。该研究确定了造成这些情况的许多因素,并提出了适当的干预措施和策略来改变现有的情况。因此,在印度采取了两个突出的手摇织机集群,并在两个集群中使用定性方法进行了初步研究。研究结果显示,如果政府和其他私营实体公司和非政府组织能够照顾到他们的问题和发展因素,如更好的信用体系、地方一级的趋势预测研究中心、技术升级、定期质量培训、利益相关者的主人翁感和孵化中心等,那么许多熟练和半熟练的织工表示愿意以企业家的身份加入。此外,大多数纺织大师声称,尽管他们已经进入了手摇织机企业,但由于缺乏创业资格,他们无法享受政府的福利。虽然政府制定了许多提高织工地位的计划,但没有一个来自社区的织工根据公司法登记为商业实体,甚至没有一个织工作为独资经营者经营。因此,如果考虑和实施阻碍问题,集群中就有创业的机会。
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引用次数: 2
Effect of mesh count on dot design and quality of screen printing in knit fabric 网目数对针织物网印网点设计和质量的影响
Pub Date : 2020-07-22 DOI: 10.15406/JTEFT.2020.06.00240
Rasheda Begum Dina, Z. Uddin, U. Fatema
Mesh count effect on the design and quality of printed fabric in screen printing was investigated after printing dot design on knit fabric using different mesh count screens and different types of ink. The design effect was evaluated by visual assessment as well as microscopic observation. Mesh opening area of each screen type was calculated from respective digital microscope images to find the possibility of the amount of ink passing through the screen and level of print detail, produced in dot design on the screen. Also, print coverage, saw-tooth effect, line sharpness, etc. were examined by measuring different distances, the diameter of dots, etc. in printed fabric and were compared with image positives. The quality of the printed fabric was assessed by color difference, color fastness.
采用不同网目数的筛网和不同种类的油墨对针织物进行网点设计,研究了网目数对织物设计和质量的影响。通过目测和显微观察对设计效果进行评价。从各自的数码显微镜图像中计算出每种丝网类型的网孔面积,以找出在丝网上的网点设计中产生的通过丝网的油墨量和印刷细节水平的可能性。同时,通过测量织物上不同的距离、网点直径等,考察织物的覆盖度、锯齿效果、线条清晰度等,并与图像正片进行比较。通过色差、色牢度评价印花织物的质量。
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引用次数: 1
Wearable technology for baby monitoring: a review 婴儿监护的可穿戴技术综述
Pub Date : 2020-07-14 DOI: 10.15406/JTEFT.2020.06.00239
Nakib Ul Hasan, I. Negulescu
Sudden Infant Death Syndrome (SIDS) is one of the major reasons for infant death. Millennial parents' growing concern of SIDS has resulted in the springing up demand for health care services, and the invention of wearable baby monitoring systems. The development of wearable electronics and communication technologies has intensified the potential use of wearable technology in healthcare purposes. As infants are vulnerable to sleeping conditions, effective health monitoring using wearable technology can detect unexpected fall of respiratory rate, heart rate, and oxygen level and alleviate parents' anxiety by notifying sudden critical situations. The purpose of this review paper is to explore and summarize recent developments in the field of baby monitoring wearable technology and their functions to acquiring real-time vital signs. Technological breakthroughs in the field of physical biosensors and electronics integrate into textile materials and their applications in monitoring human vital signs such as heart rate, oxygen level, blood pressure, body temperature, and respiratory rate have discussed. A brief introduction to future challenges and recommended considerations during designing baby healthcare wearable technology has also covered.
婴儿猝死综合征(SIDS)是婴儿死亡的主要原因之一。千禧一代父母对小岛屿发展中国家的日益关注导致了对医疗保健服务的需求激增,以及可穿戴婴儿监测系统的发明。可穿戴电子和通信技术的发展加强了可穿戴技术在医疗保健方面的潜在用途。由于婴儿易受睡眠状态的影响,使用可穿戴技术进行有效的健康监测,可以检测到婴儿呼吸频率、心率和氧含量的意外下降,并通过通知突发危急情况来减轻父母的焦虑。本文的目的是探讨和总结婴儿监测可穿戴技术领域的最新进展及其在获取实时生命体征方面的功能。讨论了物理生物传感器和电子技术在纺织材料领域的突破,以及它们在监测心率、氧含量、血压、体温和呼吸频率等人体生命体征方面的应用。简要介绍了未来的挑战和在设计婴儿保健可穿戴技术时建议的考虑因素。
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引用次数: 17
期刊
Journal of Textile Engineering & Fashion Technology
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