View in EDS

Sustainable application of eugenol-derived azo dyes on cotton fabrics.

Saved in:
Bibliographic Details
Title: Sustainable application of eugenol-derived azo dyes on cotton fabrics.
Authors: Mendes, Filipa D.P.1 (AUTHOR), Coelho, José R.A.1 (AUTHOR), Fernandes, Maria José G.1 (AUTHOR), Fernandes, Ana M.2 (AUTHOR), Silva, Carla J.2 (AUTHOR), Gonçalves, M. Sameiro T.1 (AUTHOR) msameiro@quimica.uminho.pt
Source: Dyes & Pigments. Sep2026, Vol. 252, pN.PAG-N.PAG. 1p.
Subjects: Azo dyes, Cotton textiles, Surface preparation, Textile dyeing
Abstract: The growing demand for eco-friendly alternatives in the textile industry has encouraged the exploration of natural products as sustainable sources for dye synthesis. This study reports the design, synthesis, and application of azo dyes obtained from eugenol combined with aminobenzoic acid derivatives. The dyes 3a-d and 5 were synthesized through classical diazotization–coupling strategies and structurally characterised by standard techniques. The UV - Vis absorption measurements in aqueous solutions at varying pH revealed strong absorption and stable colour behaviour across a wide pH range. Textile application studies demonstrated that these dyes produce uniform and vivid colours on cotton knitted fabrics, with crude dye forms generally exhibiting higher colour strength (K/S up to 0.98) than purified samples, suggesting that residual components may enhance dye - fibre interactions and reduce purification requirements. Pretreatment with cationic agents, particularly OPTIFIX E50 LIQ, significantly improved dye uptake (K/S up to 1.88) and washing durability on cellulose substrates (up to 3 on the grey scale), while coating techniques further enhanced colour intensity (K/S up to 4.16). These results highlight the potential of eugenol-based azo dyes as sustainable alternatives to conventional synthetic dyes for textile coloration. • A series of eugenol azo dyes were successfully synthesized via diazotization-coupling reactions. • Cotton knitted fabrics exhibited uniform and intense coloration enhanced by cationic pretreatment under exhaust dyeing. • Coating techniques significantly improved colour intensity and fastness with minimal resource use. [ABSTRACT FROM AUTHOR]
Copyright of Dyes & Pigments is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 193723195
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Sustainable application of eugenol-derived azo dyes on cotton fabrics.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Mendes%2C+Filipa+D%2EP%2E%22">Mendes, Filipa D.P.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Coelho%2C+José+R%2EA%2E%22">Coelho, José R.A.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fernandes%2C+Maria+José+G%2E%22">Fernandes, Maria José G.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fernandes%2C+Ana+M%2E%22">Fernandes, Ana M.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Silva%2C+Carla+J%2E%22">Silva, Carla J.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gonçalves%2C+M%2E+Sameiro+T%2E%22">Gonçalves, M. Sameiro T.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> msameiro@quimica.uminho.pt</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Dyes+%26+Pigments%22">Dyes & Pigments</searchLink>. Sep2026, Vol. 252, pN.PAG-N.PAG. 1p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Azo+dyes%22">Azo dyes</searchLink><br /><searchLink fieldCode="DE" term="%22Cotton+textiles%22">Cotton textiles</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+preparation%22">Surface preparation</searchLink><br /><searchLink fieldCode="DE" term="%22Textile+dyeing%22">Textile dyeing</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The growing demand for eco-friendly alternatives in the textile industry has encouraged the exploration of natural products as sustainable sources for dye synthesis. This study reports the design, synthesis, and application of azo dyes obtained from eugenol combined with aminobenzoic acid derivatives. The dyes 3a-d and 5 were synthesized through classical diazotization–coupling strategies and structurally characterised by standard techniques. The UV - Vis absorption measurements in aqueous solutions at varying pH revealed strong absorption and stable colour behaviour across a wide pH range. Textile application studies demonstrated that these dyes produce uniform and vivid colours on cotton knitted fabrics, with crude dye forms generally exhibiting higher colour strength (K/S up to 0.98) than purified samples, suggesting that residual components may enhance dye - fibre interactions and reduce purification requirements. Pretreatment with cationic agents, particularly OPTIFIX E50 LIQ, significantly improved dye uptake (K/S up to 1.88) and washing durability on cellulose substrates (up to 3 on the grey scale), while coating techniques further enhanced colour intensity (K/S up to 4.16). These results highlight the potential of eugenol-based azo dyes as sustainable alternatives to conventional synthetic dyes for textile coloration. • A series of eugenol azo dyes were successfully synthesized via diazotization-coupling reactions. • Cotton knitted fabrics exhibited uniform and intense coloration enhanced by cationic pretreatment under exhaust dyeing. • Coating techniques significantly improved colour intensity and fastness with minimal resource use. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Dyes & Pigments is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=193723195
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.dyepig.2026.113741
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Azo dyes
        Type: general
      – SubjectFull: Cotton textiles
        Type: general
      – SubjectFull: Surface preparation
        Type: general
      – SubjectFull: Textile dyeing
        Type: general
    Titles:
      – TitleFull: Sustainable application of eugenol-derived azo dyes on cotton fabrics.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Mendes, Filipa D.P.
      – PersonEntity:
          Name:
            NameFull: Coelho, José R.A.
      – PersonEntity:
          Name:
            NameFull: Fernandes, Maria José G.
      – PersonEntity:
          Name:
            NameFull: Fernandes, Ana M.
      – PersonEntity:
          Name:
            NameFull: Silva, Carla J.
      – PersonEntity:
          Name:
            NameFull: Gonçalves, M. Sameiro T.
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 09
              Text: Sep2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 01437208
          Numbering:
            – Type: volume
              Value: 252
          Titles:
            – TitleFull: Dyes & Pigments
              Type: main
ResultId 1