Abstract The aim of this study was to increase the knowledge environmental impact associated with producing fabrics for hotel textile services. project carried out in two parts: studies on textiles and services three major Scandinavian laundering companies. This paper presents results study. studied by applying main principles life cycle assessment (LCA) methodology. Life-cycle assessments provide useful information quantities energy resources consumed emissions production systems. is still...

Wool is dyed for the first time with a mixture of two pure natural anthraquinone carboxylic acids, dermorubin and 5-chlorodermorubin (2:1), by means acid dyeing technique. The acids are isolated from fungus Dermocybe sanguinea separated multiplicative liquid-liquid partition using stepwise pH gradient. color wool investigated in terms CIELAB L*, a*, b* parameters, color-fastnesses to light, washing, rubbing tested according ISO standards. dyes orange-red good color-fastness properties. Our...

Wool and polyamide are dyed with the pure natural anthraquinones, emodin dermocybin, using mordant dyeing technique. The anthraquinones isolated from fungus Dennocybe sanguined. Potassiumaluminum sulphate, potassium dichromate, cobaltous ferrous sulphate used as mordants. color of each material is investigated in terms Cielab L*, a*, b* values, color-fastnesses to light, washing, rubbing tested according ISO standards. Emodin dyes wool yellow red, whereas dermocybin confers purple violet...

Pure natural anthraquinones, emodin and dermocybin, isolated from the fungus Dermocybe sanguinea, are for first time used as disperse dyes polyester polyamide fabrics using a high-temperature dyeing method, accompanied with reference CI Disperse Red 60. The color of each dyed material is investigated in terms CIELAB L * , b values, fastness to light, washing, rubbing tested according ISO standards. Emodin bright yellow dermocybin reddish-orange, show excellent color-fastness results....

3D nanofibrous chitosan-polyethylene oxide (PEO) scaffolds were fabricated by electrospinning at different processing parameters. The structural characteristics, such as pore size, overall porosity, interconnectivity, and scaffold percolative efficiency (SPE), simulated a robust image analysis. Mouse fibroblast cells (L929) cultured in RPMI for 2 days the presence of various samples chitosan/PEO scaffolds. Cell attachments corresponding mean viability enhanced from 50% to 110% compared that...

Abstract In this study, the solubility and precipitation properties of medical‐grade stereocopolymers were investigated. The polymers was tested with eight different organic solvents four nonsolvents. poly( L,D ‐lactide) highly dependent on L / D ratio copolymer. phase‐separation ability by cloud‐point titration a solvent nonsolvent. in all cases dichloromethane, nonsolvents n ‐hexane, methanol, ethanol, isopropyl alcohol. results showed that ‐hexane most efficient Methanol ethanol quite...

Abstract Protein‐loaded multifilament fibers were fabricated by the wet‐spinning method. The polymers which tested included poly( L,D ‐lactide) [P( )LA], L/D ratio 96/4 and L,DL L / DL 70/30. dissolved in dichloromethane bovine serum albumin (BSA) was water, respectively. solutions mixed together using a probe sonicator to form polymer‐protein emulsion. This emulsion extruded an ethanol spin bath. possessed distinct sheath‐core structure, where inner core porous outer sheath smooth....

The research work presents a new design of compression hosiery where around human limb is generated using special air bladders. pressure inside the bladders adjustable. objective was to study graduated and its control on prototype with two commercial products. forces were measured under knee in three sectors: foot, middle part an upper leg. Measurements mainly done vivo test person – although some pre-trials vitro. During tests it concluded that exact very difficult achieve due to, for...

Two different types of cotton fabrics, i. e. twill and poplin, were treated with purified Trichoderma reesei cellulases. Methods used to evaluate the enzyme effects included weight loss, tear strength, bending hysteresis, wrinkle recovery pilling tendencies. When fabric properties at same loss level compared, it was apparent that cellobiohydrolase I (CBH I) endoglucanases had on fabrics. Endoglucanases caused more strength than CBH but also positive behaviour properties. The two tested...

Mosquitoes are vectors for many diseases such as malaria. Insecticide-treated bed nets and indoor residual spraying of insecticides the principal malaria vector control tools used to prevent in tropics. Other interventions aim at reducing man-vector contact. For example, house screening provides additive or synergistic effects other implemented measures. We commercial screen materials made polyester, polyethylene polypropylene design novel mosquito screens that provide remarkable additional...

Blends of microcrystalline chitosan (MCCh) with cellulose xhanthate alkaline solutions were prepared to investigate the effects aqueous MCCh gel concentration and additives on spinnability hybrid cellulose/chitosan fibers their properties. The properties spinning solution mainly dependent in gel-like dispersion amount mixed into solution. Sodium alginate chemically close was used as an additive improve miscibility due ionic bonds formed 2-amino groups. Using optimized ratio 2 : 1 sodium...

Abstract Poly( L,D ‐lactide) [P( )LA], LL/D ratio 96/4, and poly( L,DL L/DL 70/30, multifilament fibers were prepared by wet‐spinning the effects of spin draw coagulant on morphological, thermal, mechanical properties filaments studied. The hydrolytic degradation was studied in vitro . filament diameter highly dependent ratio, whereas had no or minor effect. diameters range 11–36 μm maximum tenacity 150 MPa obtained at 7.0 for both copolymers. copolymer main importance crystallinity...