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황화염료를 이용한 나일론 인공피혁 스웨이드의 연속공정 기반 염색 특성 연구
이민주,이정훈,김민석,정대호,이미경,고재왕,이승걸,Lee, Minju,Lee, Jeong Hoon,Kim, Min Seok,Jung, Dae-Ho,Lee, Mikyung,Ko, Jae Wang,Lee, Seung Geol 한국섬유공학회 2018 한국섬유공학회지 Vol.55 No.2
Nylon-based artificial suede is widely used in textile fabrics owing to its various potential applications such as automotive, sports and leisure, and industrial. It is also known that nylon-based artificial suede is an excellent substitution for natural leather. To substitute natural leather, it is necessary to understand the proper method for dyeing the substitute materials for value addition. However, in general, a large amount of wastewater can be generated by the dip-dyeing method, which increases the cost of the dyeing process. Hence, in this study, we investigated the optimum dyeing conditions of nylon-based artificial suede with sulfur black dye by a continuous process. We found that the optimal conditions were a reduction temperature of $70^{\circ}C$, retention time of 60 s, dye concentration of 30 % o.w.f., reducing agent concentration of 9 g/l, pH of 8.5, and a pad-steam temperature of $100^{\circ}C$ with 15 min of pad-steam followed by a wash with $H_2O_2$. Meanwhile, colorfastness against washing, light, and perspiration for the nylon-based artificial leather in the range of 4 to 5 grades was achieved.
이홍기(Hong-Kee Lee),손성호(Seong-Ho Son),이호영(Ho-Young Lee),전준미(Jun-Mi Jeon) 한국표면공학회 2007 한국표면공학회지 Vol.40 No.1
Ni coating layers were formed using a newly developed electroless Ni plating solution. The properties of Ni coating layer such as internal stress, hardness, surface roughness, crystallinity, solderability and surface morphology were investigated using various tools. Results revealed that internal stress decreased with plating time and reached 40 N/㎟ at 20 minutes of the plating time. Hardness increased with increasing P content and thickness. Surface roughness of the pad decreased with Ni and Ni/Au plating. Crystallinity decreased with increasing P content. Solderability based on wettability decreased with Ni and Ni/Au plating. Based on surface morphology, it is expected that Ni coating layer formed using a newly developed electroless Ni plating solution is lower than that formed using a commercial electroless Ni plating solution in possibility of black pad occurrence.
Zahra Karami Chemeh,Majid Montazer,Mohammadali Tavanaie,Mahnaz Mahmoudi Rad 한국섬유공학회 2023 Fibers and polymers Vol.24 No.12
Most textiles are electrically insulated, however, creating textile with electrical conductivity increase their usage in wearable electronics and smart textiles and reduce the accumulation of electrical charge. Conductive fabrics can successfully convert into electromagnetic shields. Most applied methods for the production of conductive textiles are cost-effective through difficult and complex methods. This research was aimed at fabricating textiles with ideal multifunctional properties such as anti-static, electrical conductivity, EMI shielding, and antibacterial properties. To do this, the fabrics were coated with carbon black nanoparticles (CB NPs) using a simple and easy dip-padding method. The composition of CB NPs on the surface of the polyester fabric was confirmed with FESEM, FTIR, and EDX image. The samples treated with CB NPs and vinyl acrylic-based resin showed a wide range of electrical resistance from 1 × 1010 to 1 × 105 (Ω.cm). In addition, antibacterial activity against Staphylococcus aureus as Gram-positive bacteria, the mechanical, thermal, and antistatic properties, air permeability, and EMI protection of the samples were evaluated, and superior results were reported for the treated samples. Conductivity measurements and triple stimuli of L* (lightness), a* (red–green), and b* (yellow–blue) showed that more weight percentages of CB NPs on the fabrics led to a significant improvement in the uniform black color and conductivity. In addition, EMI studies in the frequency range of 8.4–12.4 GHz indicated 100% shielding for CB NPs treated fabrics. These promising results are significant for large potential applications of the product with very low cost in various industries.