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Journal Details
Format
Journal
eISSN
2300-0929
ISSN
1470-9589
First Published
19 Oct 2012
Publication timeframe
4 times per year
Languages
English

Search

Volume 13 (2013): Issue 2 (June 2013)

Journal Details
Format
Journal
eISSN
2300-0929
ISSN
1470-9589
First Published
19 Oct 2012
Publication timeframe
4 times per year
Languages
English

Search

5 Articles
Open Access

Development of carboxymethyl cellulose/ polyphenols gels for textile applications

Published Online: 27 Jun 2013
Page range: 33 - 36

Abstract

Abstract

The aim of this study was to determine release rate and changes in polyphenols’ content, which were sorbed to carboxymethyl cellulose gel and subsequently desorbed. An aqueous extract of blue marc vine variety Fratava was used as a source of polyphenols. The gel was dried into a solid film and polyphenols were then desorbed again by dissolving this film in saline (isotonic) solution. Further, the influence of different times of high temperature (180°C) of drying gel on change in the amount of released polyphenols and also kinetics of their release in re-transfer of the film on the gel and solution was studied. The process simulates the possible use of carboxymethyl cellulose/ polyphenols film sorbed on textile materials and its contact with the tissues and body fluids such as course of wound healing.

Keywords

  • Carboxymethyl cellulose
  • polyphenols
  • desorption
  • thermal crosslinking
Open Access

A new method of determination of collagen conjugated with keratin

Published Online: 27 Jun 2013
Page range: 37 - 39

Abstract

Abstract

The paper describes the possibility of using Sirius red dye for the determination of collagen conjugated with keratin of wool. Sirius red assay was shown to be feasible for collagen detection, which was enzymatically coupled onto wool fibers and woven fabric. The effectiveness of combination of keratin protein with collagen was evaluated .

Keywords

  • Collagen
  • Sirius red
  • keratin
Open Access

Use of short fibers as a filler in rubber compounds

Published Online: 27 Jun 2013
Page range: 40 - 43

Abstract

Abstract

In this work, composites made from styrene-butadiene rubber and short fibers were prepared by mixing and investigated. The influence on the vulcanization process and tensile strength properties has been studied and compared with compounds filled with carbon black. The presence of fibers gave shorter curing time and led to a slight increase in tensile strength but decreased the elongation at break of the compound.

Keywords

  • Styrene-butadiene rubber (SBR)
  • fibers
  • composites
  • reinforcement
  • mechanical properties
Open Access

Mathematical modeling of the system shedding motion – heald – warp

Published Online: 27 Jun 2013
Page range: 44 - 50

Abstract

Abstract

The paper is concerned with the description of a mathematical model meant for an analysis of the movement of healds during the weaving cycle. The referred model consists of a mathematical description of shedding motion, coupled with the solution of the heald model of a weaving loom. Principal designing elements of this component have been considered while devising this model. The affected calculations show a high value of acceleration of the heald produced after its drop upon the supporting wire. The referred model allows for analyzing a considerable part of designs of heald shaft that are employed in weaving looms nowadays.

Keywords

  • Weaving loom
  • heald
  • mathematical model
  • analysis
Open Access

Antibacterial dyeing of polyamide using turmeric as a natural dye

Published Online: 27 Jun 2013
Page range: 51 - 56

Abstract

Abstract

Curcuma longa rhizome (turmeric) is a medicinal plant used for fabric and food coloration. In this study, polyamide (nylon 6.6) fabric was dyed with different mordants at various turmeric concentrations. The dyed fabric was evaluated for bacteriostatic activity against pathogenic strains of Gram-positive (Staphylococcus aureus) and Gramnegative (Escherichia coli) bacteria. The relationship between bacteriostatic activity and turmeric concentration was investigated. Durability of antibacterial activity to laundering is also discussed. Results indicate that the polyamide dyed with turmeric displayed excellent antibacterial activity in the presence of ferric sulfate, cupric sulfate, and potassium aluminum sulfate, and exhibited good and durable fastness properties.

Keywords

  • Turmeric, antibacterial
  • bacteriostatic
  • mordant
  • polyamide
  • Staphylococcus aureus
  • Escherichia coli
5 Articles
Open Access

Development of carboxymethyl cellulose/ polyphenols gels for textile applications

Published Online: 27 Jun 2013
Page range: 33 - 36

Abstract

Abstract

The aim of this study was to determine release rate and changes in polyphenols’ content, which were sorbed to carboxymethyl cellulose gel and subsequently desorbed. An aqueous extract of blue marc vine variety Fratava was used as a source of polyphenols. The gel was dried into a solid film and polyphenols were then desorbed again by dissolving this film in saline (isotonic) solution. Further, the influence of different times of high temperature (180°C) of drying gel on change in the amount of released polyphenols and also kinetics of their release in re-transfer of the film on the gel and solution was studied. The process simulates the possible use of carboxymethyl cellulose/ polyphenols film sorbed on textile materials and its contact with the tissues and body fluids such as course of wound healing.

Keywords

  • Carboxymethyl cellulose
  • polyphenols
  • desorption
  • thermal crosslinking
Open Access

A new method of determination of collagen conjugated with keratin

Published Online: 27 Jun 2013
Page range: 37 - 39

Abstract

Abstract

The paper describes the possibility of using Sirius red dye for the determination of collagen conjugated with keratin of wool. Sirius red assay was shown to be feasible for collagen detection, which was enzymatically coupled onto wool fibers and woven fabric. The effectiveness of combination of keratin protein with collagen was evaluated .

Keywords

  • Collagen
  • Sirius red
  • keratin
Open Access

Use of short fibers as a filler in rubber compounds

Published Online: 27 Jun 2013
Page range: 40 - 43

Abstract

Abstract

In this work, composites made from styrene-butadiene rubber and short fibers were prepared by mixing and investigated. The influence on the vulcanization process and tensile strength properties has been studied and compared with compounds filled with carbon black. The presence of fibers gave shorter curing time and led to a slight increase in tensile strength but decreased the elongation at break of the compound.

Keywords

  • Styrene-butadiene rubber (SBR)
  • fibers
  • composites
  • reinforcement
  • mechanical properties
Open Access

Mathematical modeling of the system shedding motion – heald – warp

Published Online: 27 Jun 2013
Page range: 44 - 50

Abstract

Abstract

The paper is concerned with the description of a mathematical model meant for an analysis of the movement of healds during the weaving cycle. The referred model consists of a mathematical description of shedding motion, coupled with the solution of the heald model of a weaving loom. Principal designing elements of this component have been considered while devising this model. The affected calculations show a high value of acceleration of the heald produced after its drop upon the supporting wire. The referred model allows for analyzing a considerable part of designs of heald shaft that are employed in weaving looms nowadays.

Keywords

  • Weaving loom
  • heald
  • mathematical model
  • analysis
Open Access

Antibacterial dyeing of polyamide using turmeric as a natural dye

Published Online: 27 Jun 2013
Page range: 51 - 56

Abstract

Abstract

Curcuma longa rhizome (turmeric) is a medicinal plant used for fabric and food coloration. In this study, polyamide (nylon 6.6) fabric was dyed with different mordants at various turmeric concentrations. The dyed fabric was evaluated for bacteriostatic activity against pathogenic strains of Gram-positive (Staphylococcus aureus) and Gramnegative (Escherichia coli) bacteria. The relationship between bacteriostatic activity and turmeric concentration was investigated. Durability of antibacterial activity to laundering is also discussed. Results indicate that the polyamide dyed with turmeric displayed excellent antibacterial activity in the presence of ferric sulfate, cupric sulfate, and potassium aluminum sulfate, and exhibited good and durable fastness properties.

Keywords

  • Turmeric, antibacterial
  • bacteriostatic
  • mordant
  • polyamide
  • Staphylococcus aureus
  • Escherichia coli

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