wang-bleachingdyeing-2008.pdf (786.67 kB)
Bleaching and dyeing of superfine wool powder/polypropylene blend film
journal contribution
posted on 2008-01-01, 00:00 authored by Xin Wang, W Xu, W Cui, W Li, Xungai WangFibers based regenerated protein draw much attention for recycling discarded protein resources and can produce biodegradable and environmental friendly polymers. In this study, superfine wool powder is blended with polypropylene (PP) to produce wool powder/PP blend film through extrusion and hot-pressing. Hydrogen peroxide is used to bleach the black colored surface of the blend films. The effects of peroxide concentration, bleaching time and powder content on the final whiteness and mechanical properties of the blend films are investigated.
The bleached films are dyed with acid red dyes and the dyed color is evaluated using a Computer Color Matching System. Color characters of dyed films, such as L*, a*, b*, ΔE*ab, C*ab and K/S values are measured and analyzed. The study not only reuses discarded wool resources into organic powder, widens the application of superfine wool powder on polymers, but also improves the dyeing properties of PP through the addition of protein content.
The bleached films are dyed with acid red dyes and the dyed color is evaluated using a Computer Color Matching System. Color characters of dyed films, such as L*, a*, b*, ΔE*ab, C*ab and K/S values are measured and analyzed. The study not only reuses discarded wool resources into organic powder, widens the application of superfine wool powder on polymers, but also improves the dyeing properties of PP through the addition of protein content.
History
Journal
Research journal of textile and apparelVolume
12Issue
4Pagination
12 - 20Publisher
Hong Kong Polytechnic UniversityLocation
Hong KongISSN
1560-6074Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2008, Research journal of textile and apparelUsage metrics
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