고강도/고분자량 폴리에틸렌 섬유의 적색 초소수성 형광염료 염색

Dyeing of High Strength and High Molecular Weight Polyethylene Fiber Using Super Hydrophobic Red Fluorescence Dyes

Abstract

Three super hydrophobic red fluorescence dyes were selected to dye high molecular weight polyethylene fiber. Their absorbance and emission spectra were obtained and Stokes' shift was measured. Fluorescence emission strength of the dyes on the fiber was investigated and therefore Fluoro Red 3 was determined as the best one among those three dyes in this experiment. Dyeing properties and fluorescence intensities were investigated using the Fluoro Red 3 on high molecular weight polyethylene fiber at various dyeing conditions. The optimum concentration of a dispersing agent was appeared at 10wt% in aqueous solution. The best dyeing was obtained at $125^{\circ}C$ for 1 hour. The color fastnesses to the washing and rubbing were as high as ratings 4~5, however, the fastness to light was exhibited ratings 2~3.

Figure 1. Chemical structure of super hydrophobic fluorescence red dyes used in this study.

Figure 2. Absorbance and emission spectra of super hydrophobic fluorescence red dyes.

Figure 3. Color strength(K/S) and fluorescence intensity of the super hydrophobic fluorescence red dyes on the HMWPE fiber.

Figure 4. Color strength(K/S at λmax) and fluorescence intensity of the Fluoro Red 3 on HMWPE fiber at 125℃ for 1 hour according to the concentration of dispersing agent.

Figure 5.Color strength(K/S at λmax) and fluorescence intensity of the Fluoro Red 3 on HMWPE fiber according to the dyeing temperature for 1 hour.

Figure 6. Color strength(K/S at λmax) and fluorescence intensity of the Fluoro Red 3 on HMWPE fiber at 125℃ according to the dyeing time.

Figure 7. Color strength(K/S at λmax) and fluorescence intensity of the Fluoro Red 3 on HMWPE fiber at 125℃ for 1 hour according to the concentration of dye.

Table 1. Color fastness of the HMWPE fiber dyed with the Fluoro Red 3 at 125℃ for 1 hour