Mehmet Kanik

Printing Cationized Cotton with Direct Dyes

This paper investigates improved direct dye printing of cotton by cationization. For the cationization, a 100% cotton woven fabric is pretreated with 2,3-epoxypropyltrimethyl ammonium chloride by a cold pad-batch method. All printing conditions are constant, and four different direct dyes are used to print both unmodified and cationized cotton fabrics. The effects of cationic reagent concentration, steaming time, dye concentration, color yields, colorimetric properties, fastness properties, staining of the white ground, and penetration behavior are evaluated. This research reveals that printing with direct dyes on cationic cotton is a very simple, cost effective printing method with high wet fastness properties.

The Effect of Vacuum Steaming Processes on Physical and Dyeability Properties of Polyamide 6 Yarns

In this study, the effect of vacuum steaming temperature and time on the physical properties of polyamide (PA) 6 yarns has been investigated. Also, the effect of vacuum steaming temperature and time on twist liveliness and package hardness of PA 6 yarns has been studied and the results obtained have been evaluated using statistical methods. Further, the effect of vacuum steaming on dyeability properties of PA 6 yarns has been examined and the effect of vacuum steaming temperature and time on dye absorption properties of PA 6 yarns has been analyzed. As a result of this study, it has been seen that vacuum steaming temperature and time have significant effects on the tenacity properties, twist liveliness, package hardness, and dyeability properties of PA 6 yarns.

Comparison of Dyeing Behavior between Hollow and Standard Poly(Ethylene Terephthalate) Fibers

The dyeing behavior of hollow poly (ethylene terephthalate) (PET) fibers was investigated by comparison with standard PET fibers. Three different disperse dyes were used to dye both hollow and standard polyester fabrics. The effects of the molecular size of the disperse dye, dye concentration, dyeing temperature, absorbance and reflectance values, brightness index, color strength (K/S value), and wash fastness properties were evaluated. Although the absorbance values of the fibers were almost equal for both fibers, the color strength values of hollow fibers were lower than those of standard fibers. The reflectance values and brightness indexes of hollow fibers were found to be higher than those of standard fibers. The wash fastness values of the fibers dyed with the same dyeing recipe were observed to be similar.

The effects of various lubricants on the friction properties of sewing threads

This paper describes an experimental investigation into the effects of different types and amounts of lubricants on the friction properties of sewing threads. In this work, four types of sewing threads, CO, PET-spun, core-spun (PET/PET) and core-spun (PET/CO) were used. Three different lubricant types and lubricant feeding rates (0.5, 1 and 2 g/min) were applied to the sewing threads. The results of the research show that the type and amount of lubricant have important effects on the friction of the sewing threads. The friction coefficient values of all sewing thread types with paraffin-based lubricant were the lowest among the lubricants. As the amount of paraffin wax in the lubricants increased, the fiber/metal friction forces slightly decreased. To obtain the lowest friction coefficient, a 0.5 g/min lubricant feeding rate and a 2.5–3% lubricant amount should be used for sewing threads.