Institute for Color Science and Technology (ICST)Progress in Color, Colorants and Coatings2008-21345220120506Preparation of persisted luminescence pigment and investigation of in glaze compatibility55637579910.30509/pccc.2012.75799ENM.GhahariDepartment of Nanomaterials and Nanocoatings, Institute for Color Science and TechnologyA.M.ArabiDepartment of Nanomaterials and Nanocoatings, Institute for Color Science and TechnologyJournal Article20111227In this paper, preparation of SrAl2O4:Eu,Dy luminescent pigment has been investigated. Coprecipitation as a low cost and facile method was selected. X-ray diffraction patterns indicated the formation of SrAl2O4:Eu,Dy phase through calcinations process above 800 °C. Moreover, a few amount of silica caused the structural transformation to alumina silicate phase. Transparent glaze which consist of a few amount of luminescent pigment was obtained at 600° C under different atmosphere conditions. The photoluminescence properties of luminescence glaze revealed that the firing atmosphere has vital effect on luminescence features of coating glaze. Although, the luminescence decay of glaze was completely eliminated in oxide atmosphere, but the green afterglow of obtained sample was remained in argon atmosphere.Institute for Color Science and Technology (ICST)Progress in Color, Colorants and Coatings2008-21345220120506Study on Tributyltin Chloride Accumulation Factors in Fish Tissue by Analysis of Variance65747579410.30509/pccc.2012.75794ENF. L.AminiDepartment of Environmental Research, Institute for Color Science and TechnologyK.BadiiDepartment of Environmental Research, Institute for Color Science and TechnologyS. Z.Shafaei TonekaboniFaculty of Mining and Geophysics, University of TehranJournal Article20101103Organotin compounds have been found different application in industries, agricultures and pharmacological sciences via their various physical and biological specifications. One of the most important applications of these compounds, especially tributyltin TBT is in marine antifouling paints and coatings. Concern about the accumulation of tributyltin compounds on fish and shellfish and the adverse effect on marine life, the application of these compounds has been severely forbidden from January 1st, 2008. In this article, statistical survey was used to investigate effective parameters of tributyltin chloride bioaccumulation with food in one of the native fish species of Persian Gulf, Scat fish Scatophagus argus, within a time period of 21 days at marine simulated aquarium bioassay. The Design Expert software was applied for statistical analysis of effects of biocide concentration in food and exposure time on compound concentration variations in fish tissues.Institute for Color Science and Technology (ICST)Progress in Color, Colorants and Coatings2008-21345220120620Saffron Petals, a by-product for dyeing of wool fibers 75847580010.30509/pccc.2012.75800ENS. M.MortazaviDepartment of Textile Engineering, Isfahan University of TechnologyM.Kamali MoghaddamDepartment of Textile Engineering, Isfahan University of TechnologyS.SafiDepartment of Textile Engineering, Isfahan University of TechnologyR.SalehiDepartment of Textile Engineering, Institute for Color Science and TechnologyJournal Article20120101The dyeing of wool fibers using saffron petals as a natural dye has been studied for first time in this paper. Saffron petal is one of the by-products of fields which are thrown away after harvesting while they can possibly be used. A series of dyeing formulation prepared with saffron petals and different mordants and the mordant effect on hue, light and wash fastness of dyed fibers were investigated. The K/S and CIELAB were used to determine the color of the fiber. The results of dyeing show that varied hues of color from light yellow to brown are obtained. The results of fastness properties of dyed fibers were fair to good. It was found that the best mordants in this study to improve wash and light fastness of dyed fibers were FeSO4 and Na2Cr2O7.Institute for Color Science and Technology (ICST)Progress in Color, Colorants and Coatings2008-21345220120620Instrument dependency of Kubelka-Munk theory in computer color matching85907579610.30509/pccc.2012.75796ENS.Gorji KandiPolymer Engineering and Color Technology Departmen, Amirkabir University of TechnologyF.AmeriDepartment of Color Physics, Institute for Color Science and TechnologyN.KhaliliDepartment of Color Physics, Institute for Color Science and TechnologyJournal Article20120110Different industries are usually faced with computer color matching as an important problem. The most famous formula which is commonly used for recipe prediction is based on Kubelka-Munk K-M theory. Considering that spectrophotometer’s geometry and its situation influence the measured spectral values, the performance of this method can be affected by the instrument. In the present study, three spectrophotometer geometries including 45/0, d/8 with specular component included and d/8 with specular component excluded mode were compared in the case of recipe prediction of textile samples using K-M theory. In comparison between the applied measuring situations, the color matching results obtained from d/8 geometry in SCE mode are far better than the others however, 45/0 geometry gives the poorest performance.Institute for Color Science and Technology (ICST)Progress in Color, Colorants and Coatings2008-21345220120920A comparison study on corrosion behavior of zinc phosphate and potassium zinc phosphate anticorrosive pigments91997579710.30509/pccc.2012.75797ENE.AlibakhshiDepartment of Surface Coating and Corrosion , Institute for Color Science and TechnologyE.GhasemiDepartment of Inorganic Pigment and Glazes, Institute for Color Science and Technology0000-0002-9434-620XM.MahdavianDepartment of Surface Coating and Corrosion, Institute for Color Science and TechnologyJournal Article20120611In this article, the effect of potassium on structure and anticorrosion properties of zinc phosphate pigments has been investigated. The co-precipitation method was selected as synthesis method of potassium zinc phosphate pigment. Then the synthesized pigment was characterized by x-ray diffraction XRD, Fourier transform infrared FTIR and Raman spectroscopy. Morphology of the powders was investigated with scanning electron microscope SEM. The inhibition efficiency of this pigment was compared to the commercial zinc phosphate pigment in a 3.5 NaCl solution by means of electrochemical impedance spectroscopy EIS on mild steel specimens. The surface composition of mild steel specimens after exposure to the test solutions was examined by energy dispersive X-ray spectroscopy EDS. The results indicate the better corrosion inhibitive performance of potassium zinc phosphate in comparison with the commercial zinc phosphate.Institute for Color Science and Technology (ICST)Progress in Color, Colorants and Coatings2008-21345220121020Adsorption of Acid blue 92 dye on modified diatomite by nickel oxide nanoparticles in aqueous solutions1011167579810.30509/pccc.2012.75798ENM. R.Khosravi NikouDepartment of Gas Engineering, Petroleum University of TechnologyK.BadiiDepartment of Environmental Research, Institute for Color Science and TechnologyN.Yousefi LimaeeDepartment of Environmental Research, Institute for Color Science and TechnologyJournal Article20120514Adsorbent prepared from waste plants for the treatment of dyeing effluents have high significance in environmental sustainability. In this research, adsorption of Acid Blue 92AB 92 dye from aqueous solutions on raw and modified diatomite nickel oxide nanoparticles was studied. The effect of different operation parameters such as pH, contact time, initial dye concentration, calcinations and sorbent dosage on the adsorption process was evaluated and optimum experimental conditions were identified. The mean size and the surface morphology of the adsorbent was characterized by SEM, BET, FTIR, XRD and elemental analysis. The maximum percentage removal of AB 92 dye from aqueous solution using 0.1 gr of modified diatomite at pH 2, temperature 25±1°C, agitation speed of 200 rpm, initial dye concentration of 50 mg/L, and for a mixing time period of 90 min was 95.21. Furthermore, under same conditions, the maximum adsorption of dye on raw diatomite was 56.95.Institute for Color Science and Technology (ICST)Progress in Color, Colorants and Coatings2008-21345220121005Kinetic of Disperse Dye on Compounded PET Polyethylene Terephthalate Using Hyperbranched Polymeric Additive as A Nanomaterial1171247579510.30509/pccc.2012.75795ENM.AhaniPolymer Engineering and Color Technology Departmen, Amirkabir University of TechnologyM.KhatibzadehDepartment of Polymer Engineering and Color Technology, Amirkabir University of TechnologyM.MohseniPolymer Engineering and Color Technology Departmen, Amirkabir University of TechnologyJournal Article20120610This paper presents the influence of Hybrane H 1500 as a hyperbranched polymer on kinetic parameters of dyeing compounded fiber grade PET polyethylene terephthalate at boil temperature. C.I. Disperse Red 324 as a disperse dye was used for dyeing compounded fiber grade PET. The result was compared with corresponding properties of virgin PET. The dyeing rate constants and diffusion coefficients as the dyeing kinetic parameters were determined. The obtained results indicated that the rate of dyeing is closely related to the diffusion behavior of dye into the fiber. The dyeing rate of modified PET was faster than virgin PET. It was also found that the modified PET included 0.5 hyperbranched polymer as an additive, had higher diffusion coefficient as well as dyeing rate constant comparing to virgin PET. Small angle x-ray scattering SAXS was used to characterize compounded PET. SAXS measurement determined the size, shape and showed a homogeneous dispersion of hyperbranched polymer in compounded sample.