@article { author = {Soleimani-Gorgani, A. and Jalili, M.}, title = {Ink-Jet Printing Cotton with Cationic Reactive Dye Based Inks}, journal = {Progress in Color, Colorants and Coatings}, volume = {6}, number = {1}, pages = {1-8}, year = {2012}, publisher = {Institute for Color Science and Technology (ICST)}, issn = {2008-2134}, eissn = {2383-1790}, doi = {10.30509/pccc.2012.75803}, abstract = {The current commercial application of ink-jet reactive inks to cotton fabrics has been through pre-treating with pad liquor prior to printing. In This study made an effort to provide a single phase ink-jet printing process for printing cotton fabric using the novel cationic reactive dye in ink’s formulation. Cotton fabric was printed upon with the novel cationic reactive dye and commercial anionic reactive dyes. Colour yield and absorbed dye fixations of the printed cotton were analysed at various pHs. The results indicated that printed un-treated cotton fabric with cationic reactive dye based ink at optimum pH, exhibited higher level of reactive dye fixation than commercial anionic reactive dye based inks on alkali pre-treated cotton fabrics. All reactive dye based inks are demonstrating excellent to washing and dry/wet crocking colour fastness. The light fastness of each reactive dye based ink fixed to cotton fabrics was mordant.}, keywords = {reactive dye,Cationic,Anionic,cotton,Ink,Jet,Printing}, url = {https://pccc.icrc.ac.ir/article_75803.html}, eprint = {https://pccc.icrc.ac.ir/article_75803_1ac379dfef4f7ceade49720f54ab1a0b.pdf} } @article { author = {Shams nateri, A. and Mohajerani, M.}, title = {Evaluation of cotton fibers stickiness by colorimetric method}, journal = {Progress in Color, Colorants and Coatings}, volume = {6}, number = {1}, pages = {9-15}, year = {2012}, publisher = {Institute for Color Science and Technology (ICST)}, issn = {2008-2134}, eissn = {2383-1790}, doi = {10.30509/pccc.2012.75802}, abstract = {Stickiness is the physical process of contaminated lint adhering to equipment. The degree of stickiness depends on chemical identity, quantity, and distribution of the sugars. The sugar in cotton fibers may be insect or plant derived. There are several methods for measuring cotton fibers stickiness. In this work, a colorimetric method was used for the measurements. In the method, honeydew was caramelized by heating cotton fibers, which caused the color of the honeydew to change from pale/colorless to yellow and brown. Heating did not cause any discoloration or change in cotton fibers. Then the yellow index b was used for determining the cotton fibers stickiness. There are high correlation and agreement between results of colorimetric, thermodetector and sugar content method. The colorimetric method is a semi-quantitative and high speed method.}, keywords = {cotton,Honeydew,Colorimetry,Stickiness,Yellowness}, url = {https://pccc.icrc.ac.ir/article_75802.html}, eprint = {https://pccc.icrc.ac.ir/article_75802_bfcdd70d269636a65fe71415e7c8f1f4.pdf} } @article { author = {Gorji Kandi, S. and Ansari, K.}, title = {Color scene transform between images using Rosenfeld-Kak histogram matching method}, journal = {Progress in Color, Colorants and Coatings}, volume = {6}, number = {1}, pages = {17-24}, year = {2012}, publisher = {Institute for Color Science and Technology (ICST)}, issn = {2008-2134}, eissn = {2383-1790}, doi = {10.30509/pccc.2012.75806}, abstract = {In digital color imaging, it is of interest to transform the color scene of an image to the other. Some attempts have been done in this case using, for example, lαβ color space, principal component analysis and recently histogram rescaling method. In this research, a novel method is proposed based on the Resenfeld and Kak histogram matching algorithm. It is suggested that to transform the color scene between two images, the histograms of the three R, G and B channels of the input image would be matched to the corresponding histograms of the destination one. The performance of the introduced method was investigated for several images. The obtained results indicated that this method is well capable of transforming the color scene between images.}, keywords = {color scene,histogram matching,color transform,Color image}, url = {https://pccc.icrc.ac.ir/article_75806.html}, eprint = {https://pccc.icrc.ac.ir/article_75806_c32b17ec107c37be25b188f230c19fb4.pdf} } @article { author = {Sadeghian Maryan, A. and Montazer, M. and Rashidi, A.}, title = {Nano Clay as New Tool for Discoloration of Deyed Denim Garmnet with Indigo}, journal = {Progress in Color, Colorants and Coatings}, volume = {6}, number = {1}, pages = {25-36}, year = {2012}, publisher = {Institute for Color Science and Technology (ICST)}, issn = {2008-2134}, eissn = {2383-1790}, doi = {10.30509/pccc.2012.75805}, abstract = {Until recently, discoloration of the denim garment has been carried out through various methods including mechanical, chemical, physical and enzymatic treatments. In this study, the nano clay was co-applied in bio stone washing of denim with cellulase to obtain denim garment with a new look and clear effluent. Acid and neutral cellulases along with nano clay were applied on the dyed denim fabric with indigo and the properties of the treated sample and the obtained effluent were evaluated. The color changes of the denim fabric were investigated using colorimetric methods. The surfaces of the treated samples and montmorillonite in effluent were observed using SEM and TEM respectively. According to the results, nano clay as new tool, along with cellulase is caused increase of the lightness and decrease of the back-staining, create a new look and reduces the remained color in the effluent.}, keywords = {Nano Clay,bio washing,Discoloration,Denim,Indigo,Cellulase}, url = {https://pccc.icrc.ac.ir/article_75805.html}, eprint = {https://pccc.icrc.ac.ir/article_75805_f2817ccbee281cf910470b42b39a374b.pdf} } @article { author = {Nourmohammadian, F.}, title = {Novel Aza-Substituted Benzothiazol and 1,2,4-Triazol Cyanine Dyes: Synthesis, Characterization and Properties}, journal = {Progress in Color, Colorants and Coatings}, volume = {6}, number = {1}, pages = {37-49}, year = {2012}, publisher = {Institute for Color Science and Technology (ICST)}, issn = {2008-2134}, eissn = {2383-1790}, doi = {10.30509/pccc.2012.75807}, abstract = {Series of novel dichromophoric cyanine dyes based on 2-aminobenzothiazoles and 3-amino-1,2,4 -triazole have been synthesized in high yields. All the dyes have been classified as disperse dyes. Besides their electronic spectroscopic properties, high dye-uptakes on polyester, excellent fastness properties, highly extinction coefficients, and broad solvatochromic effects have been observed in these novels disperse dyes. The derivatives of amino triazole were appropriate as pH indicator in the range of 11-13.}, keywords = {Dichromophoric,cyanine dyes,solvatochromic effects,aminobenzothiazole}, url = {https://pccc.icrc.ac.ir/article_75807.html}, eprint = {https://pccc.icrc.ac.ir/article_75807_c2ff68a830bc7f35bd719250d6552063.pdf} } @article { author = {Alzamani, M. and Shokuhfar, A. and Mastali, S. and Eghdam, E. and Hossaini, M.}, title = {On the Investigation of Sol-Gel TiO2 Nanostructured Films Applied on Windshields Pre-Coated with SiO2 Layer by Dip-Coating Method}, journal = {Progress in Color, Colorants and Coatings}, volume = {6}, number = {1}, pages = {51-59}, year = {2012}, publisher = {Institute for Color Science and Technology (ICST)}, issn = {2008-2134}, eissn = {2383-1790}, doi = {10.30509/pccc.2012.75801}, abstract = {TiO2-SiO2 photocatalytic nanostructure film on windshield for self-cleaning purposes was prepared via sol–gel dip-coating method. TiO2 films were prepared on automotive glass pre-coated with a SiO2 layer by a dip-coating method followed by annealing at 500 °C for 30min. The films were characterized using X-ray diffraction XRD and scanning electron microscopy SEM, FE-SEM techniques. The TiO2-SiO2 films were transparent, uniform and crack-free and the temperature was best chosen. XRD shows that SiO2 pre-coated layer comparatively pre-vent rare elements ions diffusion from substrate to avoid unfavorable compounds. The results illustrate the crys-talline anatase as main phase for films annealed at 500 °C with average crystalline size of 22-26nm, which was preferable due to much higher photocatalytic activity of anatase compare to rutile phase. The FE-SEM surface morphology results indicate that the particle size was 22 nm, whereas some pores observed in the coatings which were due to un-perfect solvent evaporation.}, keywords = {SiO2,TiO2 film,sol,gel,Surface morphology}, url = {https://pccc.icrc.ac.ir/article_75801.html}, eprint = {https://pccc.icrc.ac.ir/article_75801_7a660403321bb4784596e8d464287798.pdf} } @article { author = {Cooper, P.}, title = {Performance Characterization of Coatings on Treated-wood}, journal = {Progress in Color, Colorants and Coatings}, volume = {6}, number = {1}, pages = {61-65}, year = {2012}, publisher = {Institute for Color Science and Technology (ICST)}, issn = {2008-2134}, eissn = {2383-1790}, doi = {10.30509/pccc.2012.75804}, abstract = {Coating performance is greatly influenced by the properties of the wood substrate. This study was focused on evaluating the performance of coatings on both preservative- and thermally-treated wood. A number of commercially formulated semi-transparent stains Alkyd, Alkyd-Acrylic and PU were applied on four different types of preservative treated and heat-treated wood and their performances were evaluated in natural weathering exposure in Toronto, Canada. The results showed treatments enhanced the performance of the coatings. This enhancement occurred by reducing the water uptake in the case of thermal treatment and preservative treatment with chromated copper arsenate CCA. Even though wood treated with Cu amine-based preservatives had a higher water uptake than untreated wood; the erosion and color change of coating on Cu-amine treated wood was significantly lower than on untreated wood. There were some water-based formulations that had overall better performance than solvent-based coatings on thermally treated wood}, keywords = {Wood coating,Heat,treated wood,Preservative treated wood}, url = {https://pccc.icrc.ac.ir/article_75804.html}, eprint = {https://pccc.icrc.ac.ir/article_75804_9f327e91c3bce01d4ea62c5d4fae22da.pdf} }