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Dyeing Factors affecting

Discrimination between exposed and unexposed areas in this process requires the selection of thia zolidine compounds that do not readily undergo alkaline hydrolysis in the absence of silver ions. In a study of model compounds, the rates of hydrolysis of model /V-methyl thia zolidine and A/-octadecyl thiazolidine compounds were compared (47). An alkaline hydrolysis half-life of 33 min was reported for the /V-methyl compound, a half-life of 5525 min (3.8 days) was reported for the corresponding V/-octadecyl compound. Other factors affecting the kinetics include the particular silver ligand chosen and its concentration (48). Polaroid Spectra film introduced silver-assisted thiazolidine cleavage to produce the yellow dye image (49), a system subsequentiy used in 600 Plus and Polacolor Pro 100 films. [Pg.494]

Factors Affecting the Complete Mineralization of Azo Dyes 3.1 Oxygen Availability... [Pg.198]

Anaerobiosis is the most studied environmental factor affecting this reaction. Under aerobic conditions, oxygen, and azo dyes are in competition for the reduced electron carriers. [Pg.199]

The last chapter highlights the factors affecting the complete mineralization of azo dyes. [Pg.226]

The optimal enhancement effect is observed when the localized surface plasmon resonance is tuned to the emission wavelength of a locally situated fluorophore [86]. This is consistent with the model suggesting a greatly increased efficiency for energy transfer from fluorophores to surface plasmons [78]. Since resonance energy transfer is involved, the important factors affecting the intensity of fluorescence emission must also be the orientation of the dye dipole moments relative to the... [Pg.123]

Useful reviews describing structural factors affecting the fastness to light of dyed fibres (B-78MI11202) and on relations between the molecular structure of dyes and their technical properties (B-78MI11203) have also appeared. [Pg.328]

The optimization of seven factors will contribute to the improvement of DSC As far as Ti02 is concerned, characterization of T]a and T] is crucial. With regard to dye molecules, factors affecting r]e, r)lh and phi should be clarified and optimized. To optimize or solidity the redox electrolyte solution, materials shuuld be developed without lowering rjhl, i/ht and rjhc. [Pg.172]

Bromophenol blue, suggested by Durrum (D13) and Jencks (J3), is used as an aqueous solution of 0.1 g per liter containing 5 % acetic acid and 5 % zinc sulfate. Here, dye fixation affects considerably the protein factor. Heat must be applied according to the standard schedule of 30 minutes at 120°C (D15). [Pg.53]

In our previous approach, we have suggested that the stmctural and/or textural properties of Ca bearing phases, that are directly related to their dispersion, are among the important factors affecting not only the amount of dye in each type of composite, but more particularly their light fastness properties. [Pg.284]

To understand better the sorption process of dyes of various types of anion exchange resins, it is essential to determine the course of this process in time and the effect of different factors affecting their retention. The rate at which the dissolved dye is removed horn the aqueous solution by solid sorbents is a significant factor for application in wastewater quality control, too. It is essential to evaluate the adsorption kinetics using theoretical models in order to design and control the sorption process units. Two common kinetic models, namely, the Lagergren pseudo first-order model (Equation 4) and the Ho and McKay pseudo second-order model (Equation 5) were fitted to the experimental data of dyes sorption on the anion exchangers ... [Pg.63]

The various factors affecting the light-fading stability of color prints have been reviewed. The various issues of inkjet printed materials made with dye-based as well as pigmented inks, and traditional chromogenic color prints have been discussed. The predicted years of display before noticeable fading occurs with color prints have been listed for various ink types and printers (4). [Pg.317]

Factors Affecting Stability to Heat Plasma and serum are notable for their capacity to hold in stable aqueous solution many substances whose solubility in pure water or salt solutions is extremely low. The remarkable capacity of certain globulin fractions— notably those from Fractions III-O and IV-1, as separated by the low temperature-ethanol technique— to bind cholesterol, phos-phatides, and other types of lipid material, in stable, water-soluble combination has already been described in the preceding section. Serum albumin, however, displays equally remarkable afiSnities for a somewhat different and extremely diverse group of substances, including many types of acid and basic dyes, the ions of many organic acids containing hydrocarbon residues, certain quinone derivatives, and other substances. [Pg.463]


See other pages where Dyeing Factors affecting is mentioned: [Pg.459]    [Pg.1]    [Pg.62]    [Pg.136]    [Pg.197]    [Pg.199]    [Pg.201]    [Pg.203]    [Pg.205]    [Pg.205]    [Pg.207]    [Pg.209]    [Pg.63]    [Pg.79]    [Pg.910]    [Pg.159]    [Pg.159]    [Pg.507]    [Pg.910]    [Pg.96]    [Pg.412]    [Pg.26]    [Pg.772]    [Pg.159]    [Pg.387]    [Pg.167]    [Pg.456]    [Pg.133]    [Pg.1411]    [Pg.54]    [Pg.509]    [Pg.142]   
See also in sourсe #XX -- [ Pg.186 , Pg.187 ]




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Factors Affecting the Complete Mineralization of Azo Dyes

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