Felting Investigations

Crewther, W.G.; Dowling, L.M.

doi:10.1177/004051756103100102

Cited by 4 publications

(1 citation statement)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In Crewther and Dowling's works [124][125][126], wool was attacked by molecular iodine in a variety of media including ethanol, propanol, acetone, CCl 4 , CH 2 Cl 2 , and in aqueous solutions of KI. The contact was allowed for a range of time of 0.25 to 15 days at room temperature, and the rapid reaction of iodine with wool in aqueous media was noticed.…”

Section: Iodine-proteinic Fiber Complexesmentioning

confidence: 99%

Molecular iodine/polymer complexes

Moulay

2013

Journal of Polymer Engineering

162

127

View full text Add to dashboard Cite

A unique feature of molecular iodine by far, is its ability to bind to polymeric materials. A plethora of natural and synthetic polymers develop complexes when treated with molecular iodine, or with a mixture of mole cular iodine and potassium iodide. Many unexpected findings have been encountered upon complexation of iodine and the polymer skeleton, including the color formation, the polymer morphology changes, the compl exation sites or regions, the biological activity, and the electrical conductivity enhancement of the complexes, with poly iodides (I n¯) , mainly I 3¯ and I 5¯, as the actual binding species. Natural polymers that afford such complexes with iodine species are starch (amylose and amylopectin), chitosan, glycogen, silk, wool, albumin, cellulose, xylan, and natural rubber; iodinestarch being the oldest iodinenatural polymer complex. By contrast, numerous synthetic polymers are prone to make com plexes, including poly(vinyl alcohol) (PVA), poly(vinyl pyrrolidone) (PVP), nylons, poly(Schiff base)s, poly aniline, unsaturated polyhydrocarbons (carbon nano tubes, fullerenes C 60 /C 70 , polyacetylene; iodinePVA being the oldest iodinesynthetic polymer complex.

show abstract

Section: Iodine-proteinic Fiber Complexesmentioning

confidence: 99%

Molecular iodine/polymer complexes

Moulay

2013

Journal of Polymer Engineering

162

127

View full text Add to dashboard Cite

show abstract

Crimp Form: a New Factor in Wool Science

Whiteley

1966

Nature

View full text Add to dashboard Cite

Wool Shrinkproofing Studies

Williams

1963

Textile Research Journal

View full text Add to dashboard Cite

Potassium perrnanganate in water confers shrink resistance on wool fabric, the degree of initial shrink resistance increasing with addition of inorganic salts. On extended severe washing, fabrics treated in higher salt concentrations felt at a greater rate, once the initial period of shrink resistance has passed, than do fabrics treated in low salt concentrations. On the basis of these observations a theory of felting shrinkage is proposed which defines felting behavior of treated wool in terms of cuticle and cortex modification. Cortex modification need only be in the outer layers.Shrink resistance conferred by cuticle modification is characterized by an initial period during which no felting shrinkage takes place, followed by felting at a rate similar to that of untreated wool. Permanganate in saturated salt is an example of such a cuticle treatment.Shrink resistance conferred by outer cortex modification is not achieved by a shrink resist induction period, but by a reduced rate of felting shrinkage. Examples of shrinkproofing treatments resulting in outer cortex modification are: permanganate in water; dry, acid, and alkaline chlorinations; and the additional shrink resistance, following permanganate oxidation, conferred by residue times in bisulfite beyond that necessary to clear manganese dioxide.In permanganate treatments followed by reductive clearing, the major portion of shrink resistance is imparted during the oxidation stage for treatments in saturated salt, and during the clearing stage for treaments in water.

show abstract

Felting Investigations

Cited by 4 publications

References 7 publications

Molecular iodine/polymer complexes

Molecular iodine/polymer complexes

Crimp Form: a New Factor in Wool Science

Wool Shrinkproofing Studies

Contact Info

Product

Resources

About