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Effect of eco-friendly digital printing on the fastness properties of single jersey knitted fabrics

Kadem Füsun Doba, Özdemir Şehpal

Fibres & Textiles in Eastern Europe

2023

Vol. 31, no. 5

86--98

In this study, single jersey knitted fabrics were produced from 100 % Ne 12/1 cotton, 100 % Ne 30/1 cotton, Ne 12/1 70% cotton + 30% hemp, Ne 30/1 50% modal + 50 % cotton, Ne 30/1 100 % viscose, and Ne 30/1 50 % viscose + 50 % cotton. The raw materials were bleached and singed, after which reactive pretreatment paste recipes were padded onto the fabrics, and then colored with digital printing. Fastness analyses and spectrophotometric color measurements were applied to the samples. When the results were determined, it was obviously seen that the washing, ironing, and rubbing fastness are of very high degrees because reactive dyestuffs make covalent bonds with the fibers. Thus, the increase in the amount of thickener also increased the bonding and provided better adhesion of the color.

Thickness Optimisation of Textiles Subjected to Heat and Mass Transport during Ironing

Korycki R., Szafranska H.

Autex Research Journal

2016

Vol. 16, no. 3

165--174

Let us next analyse the coupled problem during ironing of textiles, that is, the heat is transported with mass whereas the mass transport with heat is negligible. It is necessary to define both physical and mathematical models. Introducing two-phase system of mass sorption by fibres, the transport equations are introduced and accompanied by the set of boundary and initial conditions. Optimisation of material thickness during ironing is gradient oriented. The first-order sensitivity of an arbitrary objective functional is analysed and included in optimisation procedure. Numerical example is the thickness optimisation of different textile materials in ironing device.

Friction behavior of aluminum alloy 3004 sheets in ironing process

Dohda K., Wang Z.

Applied Mechanics and Engineering

1999

Vol. 4, no spec.

133-138

The purpose of this research is to investigate the effect of, ?, the angle between the ironing direction and the rolling direction of the rolled sheets, on the friction behavior in the ironing process of aluminum alloy 3004 sheets under various frictional conditions by changing the viscosity of lubricant, the thickness of lubricant film, working velocity etc.. Experiments showed that the difference in the friction coefficient due to? becomes smaller with increasing viscosity of the lubricant/working velocity or decreasing surface roughness of the rolled sheet. For the lowest viscosity of lubricant in the present experiment, the friction coefficient for ?=0° is about 3 times of the friction coefficient for ?=90°.