The Investigation of the Effects of Plasma Treatment on the Dyeing Properties of Polyester/Viscose Nonwoven Fabrics

AbstractIn this study, Polyester/Viscose (PET/CV) nonwoven fabrics were treated with oxygen plasma application. The plasma application was carried out for 1and 10minutes at low frequency. After then, the samples were dyed with disperse dyes. Where same samples were dyed with carriers, the others were dyed without carriers. Finally, the effects of plasma treatment on dyeing properties of PET/CV nonwoven fabrics were investigated at 3% darkness. The aim of this study is that the effect of hydrophility caused by the plasma application on dyeability properties of samples was investigated

The Role of Surface Modification Methods for Sustainable Textiles

Sustainability aims to provide a livable future for the next generations. Studies on reducing high chemical, energy, and water consumption make significant contributions to sustainability in many sectors. The textile sector consists of many processes such as fiber production, yarn and fabric production, dyeing, and finishing processes. Each of these processes consumes a significant amount of water and energy. Cotton fiber production consumes approximately 1559 kg of fresh water per kg, and polyester fiber production consumes approximately 108 kWh of electricity per kg. Clean water consumption can be up to 200 L/kg in subsequent processes such as bleaching, dyeing, printing, and finishing. Surface modification techniques in textile production can play a role in sustainability, especially in areas such as reduction, reuse, and recycling. In this chapter, we aim to investigate the effects of surface modification techniques on reducing chemical, energy, and water consumption in textile production, improving textile performance properties, and altering the service life of textiles

First-line treatment of patients with HER2-positive metastatic gastric and gastroesophageal junction cancer

Fluoropyrimidine+cisplatin/oxaliplatin+trastuzumab therapy is recommended for the first-line treatment of HER2-positive metastatic gastric adenocarcinoma. However, there is no comprehensive study on which platinum-based treatment should be preferred. This study aimed to compare the treatment response and survival characteristics of patients with HER2-positive metastatic gastric or gastroesophageal junction (GEJ) cancer who received fluorouracil, oxaliplatin, and leucovorin (mFOLFOX)+trastuzumab or cisplatin and fluorouracil (CF)+trastuzumab as first-line therapy. It was a multicenter, retrospective study of the Turkish Oncology Group, which included 243 patients from 21 oncology centers. There were 113 patients in the mFOLFOX+trastuzumab arm and 130 patients in the CF+trastuzumab arm. The median age was 62 years in the mFOLFOX+trastuzumab arm and 61 years in the CF+trastuzumab arm (P = 0.495). 81.4% of patients in the mFOLFOX+trastuzumab arm and 83.1% in the CF+trastuzumab arm had gastric tumor localization (P = 0.735). The median progression-free survival (PFS) was significantly higher in the mFOLFOX+trastuzumab arm (9.4 months vs. 7.3 months, P = 0.024). The median overall survival (OS) was similar in both groups (18.4 months vs. 15.1 months, P = 0.640). Maintenance trastuzumab was continued after chemotherapy in 101 patients. In this subgroup, the median OS was 23.3 months and the median PFS was 13.3 months. In conclusion, mFOLFOX+trastuzumab is similar to CF+trastuzumab in terms of the median OS, but it is more effective in terms of the median PFS in the first-line treatment of HER2-positive metastatic gastric and GEJ cancer. The choice of treatment should be made by considering the prominent toxicity findings of the chemotherapy regimens

Use of triclosan as antibacterial agent in textiles

114-118The triclosan has been applied on cotton fabrics as an antibacterial agent and its durability to repeated home laundering studied. To evaluate the effects of environmental conditions on activity of triclosan, the samples were exposed to acidic, basic and synthetic urine solutions as simulated wearing conditions. The antibacterial activity of fabrics was evaluated against S. aureus and E. coli. The results show that the raw fabrics have the lowest activity and the bleaching pretreatment causes the increase in antibacterial activity and significant reduction in bacteria growth. However, the fabrics show the best activity after finishing with triclosan, especially against S. aureus. It is also observed that the repeated home laundering, and acidic, basic and urine conditions cause the decrease in the activity

The Effect of Oxygen Plasma Treatment on Wrinkle Resistance of Cellulose Acetate Based Fabric

In this study, cellulose acetate-based fabrics were subjected to a resin-based wrinkle-resistant treatment. The fabric samples were treated with oxygen plasma for 1 and 5 minutes with a power of 100W prior the wrinkle-resistance finishing to enhance wrinkle resistance. The surface morphology and functional groups of samples were analyzed with scanning electron microscopy and Fourier transform infrared spectroscopy, respectively. The angle of wrinkle-resistance and tensile strength of samples were investigated in accordance with resin type and plasma treatment. Scanning electron microscope micrographs reveal that plasma treatment generates microscopic grooves and micro-cracks on the sample surfaces, resulting in an etching effect. Furthermore, the samples have been successfully treated with resin-based wrinkle-resistant finishing. The results of Fourier transform infrared spectroscopy show that no significant alterations in functional groups formed in the acetate fibers posterior to plasma treatment. The wrinkle-resistance angle of cellulose acetate cloth pre-treated with oxygen plasma and wrinkle-resistance resin was significantly improved, according to the results. The high wrinkle resistance result was obtained for warp direction 113.5 ± 3.5 and weft direction 102 ± 3. Furthermore, the wrinkle resistance data were investigated using MATLAB R2020b to predict one-way ANOVA with the main factor, plasma treatment, and the interaction impact was extremely significant (P < .05). The ANOVA results resemble that plasma treatment has an influence on sample wrinkle resistance. Furthermore, with plasma treatment, sample tensile strength increases from 525.15 N to 530.76 N, but with wrinkle-resistance resin, it decreases. Consequently, plasma pre-treatment and wrinkle-resistance resin are anticipated to suit both the needs of eco-friendly and high-quality finishing methods for textile materials