Combined Dyeing and Resin Finishing of Wool/Viscose and Cotton/Wool Blends

Ibrahim, Nabil A.; Allam, E.; EL-Hosamy, M.; El‐Zairy, M. R.; El-Zairy, W. M.

doi:10.1080/03602550600553572

Cited by 7 publications

(9 citation statements)

References 3 publications

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“…The data in Table VIII show the effect of the Direct Violet 31 concentration on some performance and UV‐protection properties of cotton and cotton/polyester (65/35) blend fabric samples. It is clear, within the range examined, that Increasing the direct dye concentration in the finishing formulations improves both the nitrogen content and the fabric resiliency, WRA, along with a noticeable increase in the depth of the obtained dyeings, with the wetting time remaining practically unchanged. This improvement in the aforementioned properties may be attributed to the dye fixation onto the grafted cationic sites along with the dye retention within the cellulose structure, which minimizes its basicity, increases its acidity, and enhances its extent of crosslinking, via the polyfunctional crosslinking agent, during the curing step 28 The higher the dye concentration is, the greater the UPF rating is, regardless of the substrate, which can be discussed in terms of lower transmission of UV rays within the darker fabric 3, 29…”

Section: Resultsmentioning

confidence: 90%

“…This improvement in the aforementioned properties may be attributed to the dye fixation onto the grafted cationic sites along with the dye retention within the cellulose structure, which minimizes its basicity, increases its acidity, and enhances its extent of crosslinking, via the polyfunctional crosslinking agent, during the curing step 28…”

Section: Resultsmentioning

confidence: 99%

“…Table X shows that the sharp increase in the K / S and UPF‐rating values is a direct result of fixation of the basic dye onto the carboxyl‐containing crosslinked cellulose structure 30…”

Section: Resultsmentioning

confidence: 99%

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Proper finishing treatments for sun‐protective cotton‐containing fabrics

Ibrahim

Refai

Youssef

et al. 2005

J of Applied Polymer Sci

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ABSTRACT:To enhance both the performance and ultraviolet-protection properties of cotton-containing fabrics, attempts have been made to use poly(carboxylic acid)s as non-formaldehyde durable-press finishing agents alone or in combination with certain additives followed by posttreatment with metal salt solutions. Furthermore, simultaneous dyeing and resin finishing in the presence of triethanolamine hydrochloride (TEA ⅐ HCl) or citric acid (CA) as a reactive additive along with different anionic or cationic dyestuffs have been examined. The results reveal that the ester crosslinking of cotton-containing fabrics in the absence or presence of chitosan (5 g/L), ␤-cyclodextrin (20 g/L), or choline chloride (20 g/L) as an additive results in an improvement in the fabric resiliency as well as the ultravioletprotection properties. The extent of the improvement is determined by the type of poly(carboxylic acid), type of additive, type of substrate (i.e., cotton or cotton/polyester blend), and pretreatment history (i.e., grey, bleached, or bleached and mercerized). The posttreatment of easy-care finished fabric samples with a copper acetate solution (5 g/L) results in a dramatic improvement in the ultraviolet-protection factor, especially with bleached cotton, grey cotton/polyester blend, and bleached cotton/polyester fabric samples, regardless of the additive. Simultaneous dyeing and resin finishing with Reactive Black 5 and Direct Violet 31, in the presence of TEA ⅐ HCL as a reactive additive, or with Basilene Red PB, in the presence of CA as a reactive additive, result in a sharp increase in both the depth of shade and the ultraviolet-protection values, regardless of the substrate.

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Section: Resultsmentioning

confidence: 90%

Section: Resultsmentioning

confidence: 99%

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Proper finishing treatments for sun‐protective cotton‐containing fabrics

Ibrahim

Refai

Youssef

et al. 2005

J of Applied Polymer Sci

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“…Table II shows the fastness properties of the treated fabrics listed in Table I. The results reveal that: (a) both of RF and WF of D3–D6 are slightly higher than that of D6–D10 reflecting the differences between such dyes in the molecular size, functionality, reactivity, affinity, and compatibility with other ingredients, mode of interaction,35–37 and (b) lowering the dye concentration, irrespective of the dye type, enhances the fastness properties of treated fabrics, and (c) the wet rubbing fastness properties were found to be lower than dry fastness properties, which may be associated with the presence of unfixed dye entrapped within the modified cellulose structure, irrespective of the used dye 43…”

Section: Resultsmentioning

confidence: 99%

“…(3) irrespective of resin finishing, the enhancement in %N is a direct consequence of structure and concentration of the dye within cellulose structure whereas the higher fabric resiliency is attributed not only to the resin finishing but also to an additional cross‐linking because of the ionic bonds between the positively and negatively charged groups present in the dyes structures 34. The resiliency of the treated fabrics can be arranged in the following descending order: and (4) the extent of variation in the K/S of treated fabrics is governed by the dye molecular size, functionality, reactivity, affinity, and compatibility with other ingredients, mode of interaction 35–37…”

Section: Resultsmentioning

confidence: 99%

Synthesis of some new 2‐[(2,3‐dihydroinden‐1‐ylidene) hydrazinyl]‐4‐methylthiazole derivatives for simultaneous dyeing and finishing for UV protective cotton fabrics

Abdel‐Wahab¹,

Gaffer²,

Fouda³

et al. 2009

J of Applied Polymer Sci

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Several 2-[1-(1,2-dihydroinden-3-ylidene) hydrazono]-5-aryldiazo-4-methyl-1,3-thiazoles were synthesized by reaction of 1-(1,2-Dihydroinden-3-ylidene) thiosemicarbazide with different hydrazonyl chlorides. The products are water insoluble and UV absorbers, expressed UPF-rating values, and their H 2 O/DMF solutions were used in simultaneous dyeing and resin finishing of cotton fabrics. Results obtained show that finishing of cotton samples in presence of any of that dyes, irrespective of dye concentration, brings about an improvement in percent nitrogen, wrinkle recovery angle (WRA), dyeability, and UV protection rating values along with slight decrease of tensile strength (TS) compared with the untreated samples. Irrespective of dye structure, increasing the dye concentration from 0.5 and up to 1.7% results in an improvement in the percent nitrogen, TS and a remarkable improvement in both the dyeability, UPF-rating values along with slight decrease in WRA and lower fastness properties of the treated fabrics. The treated fabrics was characterized using energy dispersive X-ray analysis indicating the entrapped dye within the fabric structure.

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