influence of dyeing techniques on the performance of reactive dyed cotton fabrics

comparative study of the influence of dyeing technique for reactive dyes on cotton, viz. exhaust (exh. ) vs. pad batch (pb) for dichlorotriazinyl dyes and pad-dry-cure (pdc) vs. pad-dry-steam (pds) for monochlorotriazinyl dyes, has been carried out in the laboratory for five depths of shade ranging from 0. 25 to 4 on two cotton fabrics. e..

influence of dyeing techniques on the performance of reactive dyed cotton fabrics

in the present study, the improved color strength obtained by the pds (pad-dry steam) technique using saturated steam could be attributed to the presence of an increased quantity of moisture on the fabric during the fixation operation. the presence of the small amount of urea used in the pds technique will help in better dissolution of th..

comparing potential energy between fibers and particulate soil with dynamic energy from liquid flow and their effects on detergency

a theoretical study and analysis of experimental values was done to clarify whether the potential energy between fibers and particulate soil or the dynamic energy from liquid flow influences detergency more strongly. the theoretical treatment shows clearly that particle detachment rate is proportional to $phi$ **3exp( $minus$ k//dv//n) an..

removal of particles from substrates by electro-osmotic flow

the direct application of elektrokinetic phenomena to detergency was tried for cotton cloths. when an electric field was applied perpendicularly to the cloth, electro-osmotic flow took place and the soil particles were removed from the fiber surfaces. further investigation using model systems confirmed the effectiveness of particle remova..

computer technology in the modern dyehouse

this paper outlines several steps that help maximize financial returns in the textile industry. these steps include integrating an action plan across such activities as costs, production, sales and finance; defining the trends in the target market segments; introducing a right-first-time production philosophy; conducting a detailed audit ..

recovery of caustic soda from caustic effluents

an economically viable treatment sequence has been developed and piloted at two textile factories for the recovery and reuse of water, chemicals and heat energy from sodium hydroxide effluent produced during the scouring of cotton fibre. the treatment sequence involves pretreatment of the scour effluent by neutralisation, using an acidic ..

contamination on clothing for staff dealing with the accident at chernobyl

during the first days after the chernobyl accident, there were difficulties in decontaminating staff clothing; the initial suggestion that the dust contamination characteristic of these conditions would be readily removed was not confirmed: results obtained in the laundry in may-july 1986 showed that even severe decontamination, which pro..

effect of polar soil components on the phase inversion temperature and optimum detergency conditions

previously reported results have shown that optimum removal of a hydrocarbon soil from polyester/cotton fabric occurs above the cloud point at the phase inversion temperature (pit) of nonionic surfactant/water/soil systems. through comparison of phase behavior measurements to radiotracer detergency studies using model sebum soils, i.e., c..

safety of sodium hypophosphite catalyst under textile finishing conditions

the possibility of phosphine formation during durable press finishing of cotton fabrics with polycarboxylic acids and sodium hypophosphite catalyst was investigated under the controlled heating conditions of thermogravimetric analysis (tga). the volatile products were identified by fourier transform infrared spectroscopy (ft-ir) the decom..

influence of wet pickup on lateral migration during drying

as wet pickup on cotton fabrics is reduced the extent of migration is also reduced. migration is due to liquid in the larger capillaries transferring to the smaller capillaries in the fabric matrix. when all the large capillaries are depleted of liquid, migration is reduced considerably. the subject of this paper is the determination of t..