• Title/Summary/Keyword: Fabric performance

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A Study of the Performance Improvement for Quilting Fabric via Postprocessing (퀼팅원단 후속가공을 통한 기능성 향상 연구)

  • Kim, Ji-Hoon;Ko, Hye-Ji
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.7
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    • pp.590-596
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    • 2020
  • The fabric used for military winter inner clothing(top) is quilted with padded cotton to provide warmth. This quilting fabric is generally manufactured with yarns that intersect and are sewn substantially between the fabric and cotton. Thus, it is impossible to separate the fabric and cotton once after the quilting fabric is manufactured, which can result in a significant loss of fabric and cotton when separated. In this study, after fabricating the quilting fabric, we investigated a method to stabilize change rate of thickness and increase the warmth keeping property through subsequent processing without damaging the fabric. A relatively method of passing the quilting fabric through a part of the cotton production facility was used generally, and the following results were obtained. This indicates that after the quilting fabric was manufactured, the warmth keeping property was improved through the subsequent processing steps, so that the change rate of thickness due to washing was stabilized.

Properties of cotton fabric treated with $TiO_2$/PEG ($TiO_2$/PEG처리 면직물의 특성)

  • 김정진;장정대
    • Textile Coloration and Finishing
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    • v.14 no.3
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    • pp.53-58
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    • 2002
  • Cotton fabric was treated with TiO$_2$-PEG600 mixed solution by pad-dry-cure and wet-fixation process to improve the performance properties as well as antibiosis effect and its laundering durability. In this paper, the effects of concentration of $TiO_2/PEG$ and fixation process were investigated on laundering durability and properties of cotton fabric treated with glyoxal. As the concentration of $TiO_2/PEG$ increased fixation, W.I., K/S of treated cotton fabric increased. Application of wet-fixation method provided a further improvement in fixation, laundering durability of treated cotton fabric.

Properties and UV-cut effects of cotton fabric treated with $TiO_2$/PEG ($TiO_2$/PEG처리 면직물의 물성과 자외선 차단성능)

  • 김정진;장정대
    • Textile Coloration and Finishing
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    • v.14 no.4
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    • pp.223-228
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    • 2002
  • Cotton fabric was treated with $TiO_2$-PEG600 dispersion colloid by pad-dry-cure and wet-fixation process to improve the performance properties as well as UV-cut effect. As the concentration of $TiO_2$/PEG increased tensile strength, crease resistance, stiffness of treated cotton fabric increased. Application of wet-fixation method provided a further improvement in tensile strength, crease resistance, stiffness of treated cotton fabric. Cotton fabric treated with $TiO_2$/PEG was more efficient in UV-cut property than untreated cotton.

Development of an Automatic Marking System for Fabric Inspection Machine (원단 불량 검사기의 자동 마킹 시스템 개발)

  • Kim, Jae-Yeon;Lee, Jae-Yong
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.21 no.6
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    • pp.22-29
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    • 2022
  • In this study, an automatic marking system for fabric inspection machines was developed. The main objectives of the study were to promote intelligence and automation for the inspection process, as well as to increase textile industrial productivity. Generally, when a worker manually inspects and marks a fabric, human error and reduced efficiency are unavoidable. To overcome these problems, we developed an automatic marking system that uses robots. This system incorporates a vision camera to automatically recognize defects, and an optical fiber sensor to detect the side of the fabric. To verify the performance, the control system sends a command directly to the robot to mark the fabric. Finally, the actual production confirmed that the proposed system could perform the desired motion.

Experimental Study of Moisture-Wicking Fabric as Cooling Pad for Novel Rotary Direct Evaporative Cooler

  • Sang-Hwan Park;Jae-Weon Jeong
    • International Journal of High-Rise Buildings
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    • v.12 no.4
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    • pp.335-341
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    • 2023
  • This study proposes a novel rotary direct evaporative cooler and investigates the potential of a moisture-wicking fabric as a cooling pad for the proposed evaporative cooler. The rotary direct evaporative cooler rotates the cooling pad to reduce the water and energy consumption of the pump compared to those of existing direct evaporative coolers. A moisture-wicking fabric is considered as the material of the cooling pad, because of its high moisture-wicking property, enhancing water evaporation. Experiments are performed under various inlet air conditions while measuring the air temperature, relative humidity, air velocity, and differential pressure. The evaporative cooling efficiency and impacts of the inlet air temperature and air velocity on the cooling performance are also evaluated. The results demonstrate the potential of the moisture-wicking fabric as cooling pad of direct evaporative cooler.

The Variation of Mechanical Properties with Directions of PET High Stretch Fabrics (PET 고신축사 직물의 방향에 따른 역학적 특성의 변화)

  • 김영민;박종범;김주애;조현혹
    • Journal of the Korean Society of Clothing and Textiles
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    • v.26 no.1
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    • pp.160-167
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    • 2002
  • Stretch fabrics are wide-spread for high performance clothing use with requirements of fitness and adaptability to human's movement. A newly developed 100% PET high stretch fabric has excellent properties with respect to stretch, softness, bulkiness, and apparent volume compared to PET filament fabrics. The 100% PET high stretch fabric shows advantages of a dimensional stability, dye and agent adaptability in dying and finishing process, a property of stretch recovery after washing and lower production cost than that of spandex fabric. KES-FB was used to measure mechanical properties to various directions of the fabric. This study centered on whether the 100% PET high stretch fabric is suitable to quality and shape retention of fabric by testing several properties including tensile, compression, shear, bending and surface characteristic to various measuring directions. Tensile linearity showed maximum value at $0^{\circ}$ in plain and $90^{\circ}$ in twill. Shear Stiffness of plain and twill showed maximum value equally at $45^{\circ}\;and\;135^{\circ}$. Bending rigidity showed maximum value at $0^{\circ}$ in plain and $45^{\circ}$ twill. Mean deviation of MIU showed maximum value at $0^{\circ}\;and\;90^{\circ}$ in plain and $135^{\circ}$ in twill.

Comparative Study of Extraction Efficiency of Water Decoction with or Without Non-woven Fabric (전탕방법에 따른 전탕액의 추출률 비교연구 - 평위산 전탕액의 Hesperidin HPLC 분석 -)

  • Yang, Woong-Mo;Chung, Kyu-Jin;Kim, Kyung-Wook;Bae, Hyun-Su;Chang, Mun-Seog;Park, Seong-Kyu
    • The Korea Journal of Herbology
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    • v.25 no.1
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    • pp.9-12
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    • 2010
  • Objectives : To evaluate the extraction efficiency of water decoction with or without non-woven fabric underlying comparison of the HPLC (high-performance liquid chromatography) profiles of the hesperidin which is the standard of Citri Pericarpium. Methods : Pyungwisan, which is comprised of Atractylodis Rhizoma, Magnoliae Cortex, Citri Pericarpium, Glycyrrhizae Radix, Zingiberis Rhizoma, and Ziziphy Fructus, was extracted in boiling water with non-woven fabric or without non-woven fabric. Then hesperidin content was analyzed by HPLC. Results : The contents of hesperidin in the water extract of Pyungwisan which was decocted without non-woven fabric showed $219.57{\pm}2.51\;mg/g$ and $138.90{\pm}6.32\;mg/g$ in with non-woven fabric decoction. Conclusions : These results suggest that herbal decoction without non-woven fabric might increase extraction efficiency.

Washing Efficiency of Drum Washing Machine Using Steam Jet System (스팀분사 방식을 사용한 스팀 드럼세탁의 세탁성능)

  • Jung, Sun-Young;Jang, Jeong-Dae;Park, Seok-Kyu;Jeong, Seong-Hae
    • Fashion & Textile Research Journal
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    • v.8 no.1
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    • pp.134-138
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    • 2006
  • The washing efficiency of two types of washing machine- drum(drum washing) and drum using steam jet system(steam drum washing) was studied. The purpose of this paper is to clarify the performance of new steam drum washing. The relationship between washing temperature and washing efficiency(reflectance(%)) by soil removal, and that between washing temperature and electric energy consumption, Fabric damage evaluated by Danish wear method, Fabric shrinkage(%) during laundering were investigated, and compared with those in drum washing machine. Washing efficiency of steam drum washing according to washing temperature is better than that of drum washing. Electric energy consumption and fabric damage in steam drum washing are lower than those of drum washing. Fabric damage increased as washing temperature increased. Shrinkage of fabrics in steam drum washing and drum washing are about same. Therefore, we assumed that in the case of steam drum washing using steam jet system, washing efficiency remarkably increased, and fabric damage decreased, even with a lot of saving in given electric energy and water used.

Measurement errors of the EIT systems using a phantom and conductive yarns (전기임피던스 단층촬영법을 이용한 외란위치 계측오차)

  • Park, Ji Su;Koo, Sang-Mo;Kim, Choong Hyun
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.65 no.8
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    • pp.1430-1435
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    • 2016
  • Electrical impedance tomography (EIT) has been applied to measure the location of external disturbance using a phantom and conductive yarns. According to the test results, the addition of carbon nanotube particles into the phantom does not show remarkable improvement in location errors. On the other hand combined fabric, conductive yarns with fabric, and non-woven fabric, were added to evaluate its performance as a fabric sensor. The combined fabric resulted in a decrease of 21.5% in the circumferential location error and a decrease of 50% in the radial location error, compared to those of the yarns. Additionally, it was revealed that the measurement error is almost linearly proportional to the conductivity of the phantom liquid and resistance of the conductive yarns. The combined fabric can be a promising material for fabric sensors in sports utilities and medical devices.

Blockchain-based Data Storage Security Architecture for e-Health Care Systems: A Case of Government of Tanzania Hospital Management Information System

  • Mnyawi, Richard;Kombe, Cleverence;Sam, Anael;Nyambo, Devotha
    • International Journal of Computer Science & Network Security
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    • v.22 no.3
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    • pp.364-374
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    • 2022
  • Health information systems (HIS) are facing security challenges on data privacy and confidentiality. These challenges are based on centralized system architecture creating a target for malicious attacks. Blockchain technology has emerged as a trending technology with the potential to improve data security. Despite the effectiveness of this technology, still HIS are suffering from a lack of data privacy and confidentiality. This paper presents a blockchain-based data storage security architecture integrated with an e-Health care system to improve its security. The study employed a qualitative research method where data were collected using interviews and document analysis. Execute-order-validate Fabric's storage security architecture was implemented through private data collection, which is the combination of the actual private data stored in a private state, and a hash of that private data to guarantee data privacy. The key findings of this research show that data privacy and confidentiality are attained through a private data policy. Network peers are decentralized with blockchain only for hash storage to avoid storage challenges. Cost-effectiveness is achieved through data storage within a database of a Hyperledger Fabric. The overall performance of Fabric is higher than Ethereum. Ethereum's low performance is due to its execute-validate architecture which has high computation power with transaction inconsistencies. E-Health care system administrators should be trained and engaged with blockchain architectural designs for health data storage security. Health policymakers should be aware of blockchain technology and make use of the findings. The scientific contribution of this study is based on; cost-effectiveness of secured data storage, the use of hashes of network data stored in each node, and low energy consumption of Fabric leading to high performance.