An infrared technique for the quick analysis of cotton–polyester blends

Iyer, P. Bhama; Iyer, K. R. Krishna; Patil, N. B.

doi:10.1002/app.1976.070200303

Cited by 14 publications

(12 citation statements)

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“…The band at 1713 cm −1 refers to the carbonyl group C=O stretch, and C-O stretch and O-H deformation have been identified at 1413-1472 cm −1 [26,27]. The bands in the region 877 cm −1 are associated with the benzene ring [28]. A complementary band detected in the region 712 cm −1 can be attributed to the angular deformation of (CH2)n [26].…”

Section: Evaluation Of Surface Modificationmentioning

confidence: 98%

Surface Modification of Polyester Fabrics by Ozone and Its Effect on Coloration Using Disperse Dyes

et al. 2021

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Polyester fibers (PES) are the most consumed textile fibers due to their low water absorption; non-ionic character and high crystallinity. However, due to their chemical structure, the chemical interactions between polyester, finishing products, and dyes are quite challenging. We report on the use of ozone to modify the surface of polyester fibers with the goal of improving the interaction of the modified surface with finishing compounds and dyes. We used C.I. Disperse Yellow 211 to dye ozone-treated polyester fabrics and evaluated the effects of ozone treatment using FTIR-ATR, Raman spectroscopy, SEM imaging, rubbing tests, and capillarity measurements. We evaluated the dyeing performance via color analysis, and determined the dyeing kinetics. Experimental results indicate that the modification of polyester fabrics with ozone is a feasible pre-treatment that improves dyeing efficiency allowing better solidity of color and a decrease in the amount of dye required.

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Section: Evaluation Of Surface Modificationmentioning

confidence: 98%

Surface Modification of Polyester Fabrics by Ozone and Its Effect on Coloration Using Disperse Dyes

et al. 2021

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“…The increase in the amorphousity especially at the end of exposure leading to an increase in the exhaustion and diffusion of the dye inside the fabric pores whereas; uv/ozone exposure of the samples districts the dye accumulation and hence increases the levelness of dyeing. For polyester fabric the observed slight increase in (K/S) and (L) values by prolonging uv/ozone exposure, is due to the increase in the polarity of these treated fabrics, which results from the increase in the intensity of different functional groups of these fabrics by prolonging exposure to uv/ozone leading to an increase in their availability for linkage with the reactive species of each dye applied, and hence increasing dye up-take but to an extent depends on the dye type (Bhama Iyer P., et al, 1976). While the improvement in (K/S) and (L) values by prolonging uv/ozone exposure of blend (wool/polyester) fabrics especially at the end of exposure, can be explained in view of the fact that (Ibrahim, S. F., Ph.D. Thesis, 2003), there is a remarkable increase in the peak intensity values of the different functional groups which characterize such blend especially at the end of exposure.…”

Section: Resultsmentioning

confidence: 99%

Statistical Method for Determining the Levelness Parameters of Different Coloured Polymeric Fabrics

Ibrahim

Essa²,

Osman³

2011

IJC

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In this research work an objective method for evaluating the levelness (L) of coloured textile materials by spectrophotometric measurements is reported. Colour levelness is actually a description of the uniformity of colour shade in different places of the fabric. Thus, we use three different fabrics namely, wool, polyester and wool/polyester blend (65/35%), firstly these fabrics are treated with different uv/ozone exposure times continued for one hour exposure, followed by dyeing separately with three different dye classes; reactive, direct and acid. The colour strength (K/S) and colour difference ?E after exposing of the treated dyed samples to artificial day light are measured spectrophoto-metrically. The results of these measurements are statistically correlated with the levelness (L), relative standard deviation Sr (?), and the unlevelness (U). The obtained results showed that the dyeability, L parameter, U parameter and ?E values are greatly depend on the dye class used, fabric nature, and type of treatment applied. Where as these parameters reflect the effect of homogeneity of dye distribution on the fabric which decreases the colour fading of the dyed samples under test. Where uv/ozone exposure leads to the increase in the amorphousity of the exposed samples especially at the end of exposure leading to an increase in the exhaustion and diffusion of the dye inside the fabric pores besides, to its effect on districting the dye accumulation and hence increases the levelness of dyeing.

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“…The calculated correlation coefficient is 0.9998, which is highly significant. Bhama Iyer et al [6] observed that particle size plays a very important role in the peak intensity of the Cs tretching band of the carbonyl group in polyester, the absorption band recommended for analysis of cotton/ polyester blends. The absorbance of the C~ band versus composition does not yield a straight line.…”

Section: Resultsmentioning

confidence: 99%

“…The occurrence of non-overlapping absorption bands in IR spectra makes such analysis easier and more reliable. Various examples of quantitative determinations of fiber blends have been reported, including cotton/ dacron by O'Conner [ 10], wooUterylene by Clark and Hickie [3], cotton/polyester by Bhama Iyer et al [6], and acrylic/wool by Soosamma et al [ 12]. In this paper, we report a simple technique based on an ttt method for quantitative analysis of ramie/acrylic blends.…”

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confidence: 94%