NOPR Collection:

Advances in ink-jet printing technology of textiles

Tue, 01 Mar 2005 00:00:00 GMT

Title: Advances in ink-jet printing technology of textiles Authors: Malik, S K; Kadian, Savita; Kumar, Sushil Abstract: A brief account of various paths used in the development of ink-jet printing for textiles has been reported. This technology has achieved considerable success till the production stage and a lot of R&D work is being done to improve it further. It is a clean and environment-friendly process that reduces printing duration and costs by increasing productivity of pre- production in printing process. The potential applications of ink-jet technology emerged in the past few years have also been presented. Page(s): 99-113

Studies on combined effect of heating of roving and space between the aprons of ring frame drafting system on yam quality

Tue, 01 Mar 2005 00:00:00 GMT

Title: Studies on combined effect of heating of roving and space between the aprons of ring frame drafting system on yam quality Authors: Subramanian, S; Mohamed, A Peer Abstract: The combined effect of heating of roving at the break draft zone and space between the aprons of ring frame drafting system on yarn quality has been studied. Heating of roving at the break draft zone of ring frame reduces the friction between the drafting fibres which can be advantageously utilized by reducing the spacing between the aprons, thereby improving the control over the floating fibres. It is observed that the yarn imperfections, faults and elongation - at - break are affected by the heating of roving at the break draft zone and vary ing the space between the aprons. Page(s): 94-98

Dyeing properties of a mixed bi-functional reactive dye on a novel regenerated cellulosic fibre

Tue, 01 Mar 2005 00:00:00 GMT

Title: Dyeing properties of a mixed bi-functional reactive dye on a novel regenerated cellulosic fibre Authors: Koh, Joonscok Abstract: A mixed bi-functional reactive dye has been applied to the regular viscose rayon and the new regenerated cellulosic fibre (en Vix^®), prepared from cellulose acetate by the hydrolysis of acetyl groups, and their dyeing and fastness properties compared. It is observed that the en Vix^® exhibits better dyeability than the regular viscose rayon as explained by the differences in the supramolecular structure of these two fibres. Page(s): 88-93

Recycled wool-based nonwoven material for sorption of acid dyes

Tue, 01 Mar 2005 00:00:00 GMT

Title: Recycled wool-based nonwoven material for sorption of acid dyes Authors: Radetic, M; Jocic, D; Jovancic, P; Petrovic, Z Lj; Thomas, H Abstract: The possibility of using a nonwoven material based on recycled wool for sorption of acid dyes from wastewater has been studied. To improve its sorption properties, the recycled wool-based nonwoven material was treated with low temperature air plasma and/or biopolymer chitosan. These treatments introduced new favourable functional groups and increased the active surface area. Sorption capacity, sorption kinetics as well as the influence of electrochemical properties of fibre, initial dye concentration, pH and temperature on the sorption have been studied. It is observed that the nonwoven recycled wool-based material can be used as an efficient sorbent for removal of acid dyes. Chitosan and plasma+chitosan treatments of the material remarkably improved the sorption properties for AR88 and AR27 dyes, likely because of the increase in amino groups originating from chitosan that are the main sites for binding of dye anions. However, no significant positive effect of low-temperature plasma and/or chitosan treatment of material on sorption of AB 113 dye was observed. Page(s): 82-87