Colorimetric assay and deodorizing/antibacterial performance of natural fabrics dyed with immature pine cone extract

Abstract

To examine the deodorizing function and antibacterial activity of fabrics dyed with the extract of immature pine cone, a natural dyeing aqueous solution (the extract of immature pine cone, a natural colorant) was prepared. The colorimetric assay and deodorizing/antibacterial performance of fabrics (cotton, silk and wool fabrics) dyed with immature pine cone extract without/with mordant (aluminum sulfate) were evaluated. The components in the aqueous extract of immature pine cone were found to be hemicellulose, lignin, cellulose and tannin. The yellow color of fabrics dyed with immature pine cone extract might be attributed to the lignin component. The K/S values of dyed fabrics with mordant showed higher values than those without mordant. The color fastness (washing, water and acid/alkaline perspiration fastness) of fabrics dyed without/with mordant was found to be very good (grade 4–5). All of the fabrics dyed without/with mordant also showed good deodorizing function and excellent antibacterial performance. These results demonstrate the strong potential of even natural fabrics dyed with immature pine cone extract without mordant as a functional material with both high antibacterial activity and deodorizing function.

Odor in textiles: A review of evaluation methods, fabric characteristics, and odor control technologies

“…Despite odor control being one purported benefit of an antimicrobial, 116 there are surprisingly few studies that have examined odor control of antimicrobial treated textiles. 34,37,56,117–120…”

“…To date, there are few published papers employing the ISO method. [36][37][38][39] Lee et al 36,37 used the gas detector method to evaluate the deodorizing properties of natural dyes and mordants used on cotton, silk, and wool fabrics with ammonia and acetic acid as challenge odorants. No correlation of odor reduction rates with sensory panels was conducted.…”

“…Despite odor control being one purported benefit of an antimicrobial, 116 there are surprisingly few studies that have examined odor control of antimicrobial treated textiles. 34,37,56,[117][118][119][120] Many standard test methods for evaluating the antimicrobial activity of textile products against selected bacterial strains exist and have been reviewed elsewhere. 114,121 Claims of odor control based solely on the basis of such in vitro tests are not appropriate as antimicrobial activity does not always indicate odor reduction.…”

Ekstraksi kayu secang (Caesalpinia sappan Linn) dan aplikasinya pada pewarnaan kain katun dan sutera

“…Ketahanan luntur warna terhadap keringat asam basa pada kebanyakan pewarnaan alami bernilai baik sampai sangat baik (4-5). Hal ini dilaporkan oleh beberapa peneliti diantaranya (El-Khatib et al, 2017;Lee et al, 2018Lee et al, , 2017Masae et al, 2017;Sofyan and Failisnur, 2016), yang mendapatkan nilai ketahanan luntur warna kain terhadap keringat asam basa dari beberapa sumber pewarna alami dengan nilai baik sampai sangat baik (4-5). Sementara pewarnaan dengan ekstrak kayu secang memberikan nilai ketahanan luntur warna terhadap keringat dengan rata-rata cukup sampai baik (3-4) (Tabel 4).…”

Deposition of Zinc Oxide on Different Polymer Textiles and Their Antibacterial Properties

“…The textile industry, similar to other sectors, systematically changes as a result of new product development which meets user expectations, as well as the enrichment of textile applications in various fields. Nowadays, there are many functional textiles but the most popular of them seem to be materials with antibacterial properties [ 1 , 2 , 3 ]. High demand for this type of fabric is related to the problem of increasing resistance of microorganisms to drugs [ 4 , 5 ].…”