Improving Dyeing Parameters of Polyester/Cotton Blended Fabrics by Caustic Soda, Chitosan, and Their Hybrid

Hilal, Nora M.; Gomaa, Shimaa; Elsisi, Amina Abdel Rahman

doi:10.21608/ejchem.2020.25571.2498

Cited by 11 publications

(18 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Section: Resultsmentioning

confidence: 99%

“…In this process, sodium hydroxide can hydrolyze the ester groups in the polyester chains, and the modified polyester fragments with terminating carboxyl or hydroxyl groups remain in the polyester fiber structure. 61 In this experiment, chitosan obtained by purification of BSF exuviae was grafted onto pretreated polyester fabrics using citric acid as a grafting agent. The presence of the chitosan film on the surface of polyester fabrics is shown in Figure 9.…”

Section: Resultsmentioning

confidence: 99%

“…Alkali treatment of polyester fabrics is a well-known and conventional process in the textile industry to improve the reactivity and hydrophilic character of the polyester. In this process, sodium hydroxide can hydrolyze the ester groups in the polyester chains, and the modified polyester fragments with terminating carboxyl or hydroxyl groups remain in the polyester fiber structure …”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Sustainable Superheated Water Hydrolysis of Black Soldier Fly Exuviae for Chitin Extraction and Use of the Obtained Chitosan in the Textile Field

2021

View full text Add to dashboard Cite

Interest in insects as waste biomass bioconverters and their use as valuable resources for fat, proteins, and chitin has increased considerably in the last few years. In this study, proteins were extracted from defatted black soldier fly (BSF) ( Hermetia illucens ) exuviae by green hydrolysis using superheated water at 150 °C for 20 h, and the remaining chitin was deacetylated into chitosan and used as a finishing agent for polyester fabrics. A total amount of 7% fat, 40% proteins, and 20% chitin was obtained from BSF exuviae. Different hydrolysis times ranging from 1 to 20 h were tried until the complete purification of chitin. The purity of chitin and the obtained chitosan after deacetylation was assessed by Fourier transform infrared spectroscopy and thermal analysis. A preliminary study was successfully carried out to use the obtained chitosan as a finishing agent for polyester pretreated fabrics using citric acid as a grafting agent. The presence of chitosan on the fabric was verified by scanning electron microscopy and by dyeing of the pretreated polyester fabric using a reactive dye with sulfonated groups that are able to be absorbed by electrostatic attraction because of the created cationic nature of the fiber surface treated by chitosan.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Sustainable Superheated Water Hydrolysis of Black Soldier Fly Exuviae for Chitin Extraction and Use of the Obtained Chitosan in the Textile Field

2021

View full text Add to dashboard Cite

show abstract

“…Accordingly, environmentally friendly agents, e.g., citric acid and other low-toxic oxidizing agents, are used to support the interaction, e.g., cross-linking of chitosan with textile materials, e.g., wool and cotton and their blends [ 8 ]. Modification of materials with chitosan increases the breaking strength and resistance to deformation, increases the possibility of wetting the material and hydrophilicity [ 9 ], enhances dyeing properties [ 10 , 11 ], antimicrobial properties [ 3 , 7 ], reduces static charge [ 12 ] and can reduce the amount of particles released from the polyester material during washing [ 5 , 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

“…The addition of different cationic surfactants as promoters can reduce the concentration of sodium hydroxide and the weight loss of the treated material [ 21 ]. The interaction of surfactant molecules with the substrate can lead to a reduction or increase in the reaction rate, or to a change in the course of the reaction [ 10 , 14 , 15 , 16 , 22 , 23 , 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

Biopolymer Textile Structure of Chitosan with Polyester

2022

View full text Add to dashboard Cite

The research deals with functionalization of a standard polyester fabric with biopolymer chitosan, whose premises are multifunctional and favour ecological effects. Due to the incompatibility of synthetic and natural polymers, the chitosan treatment was preceded by alkaline hydrolysis with sodium hydroxide with the addition of cationic and anionic surfactants as promoters. Compatibility of the chitosan with untreated and alkali-hydrolyzed fabrics was performed by analysis of mechanical and physico-chemical properties. The number of characterisation procedures performed required the use of hierarchical cluster analysis (HCA) to identify homogeneous groups or clusters in which similarities and differences between samples are visible. Almost all applied methods and evaluation parameters have shown that alkaline hydrolysis of polyester fabric has the best potential for functionalization with chitosan. Therefore, the addition of surfactants as promoters during alkaline hydrolysis is not necessary in the pretreatment process phase.

show abstract

One-Bath One-Step Dyeing of Polyester/Cotton Blend Fabrics Through Lipase Enzyme Surface Modification

Tegegne,

Haile,

Feleke

2024

Journal of Natural Fibers

View full text Add to dashboard Cite

Improving Dyeing Parameters of Polyester/Cotton Blended Fabrics by Caustic Soda, Chitosan, and Their Hybrid

Cited by 11 publications

References 20 publications

Sustainable Superheated Water Hydrolysis of Black Soldier Fly Exuviae for Chitin Extraction and Use of the Obtained Chitosan in the Textile Field

Sustainable Superheated Water Hydrolysis of Black Soldier Fly Exuviae for Chitin Extraction and Use of the Obtained Chitosan in the Textile Field

Biopolymer Textile Structure of Chitosan with Polyester

One-Bath One-Step Dyeing of Polyester/Cotton Blend Fabrics Through Lipase Enzyme Surface Modification

Contact Info

Product

Resources

About