Cellulosic fabric treated with hyperbranched polyethyleneimine derivatives for improving antibacterial, dyeing, pH and thermo-responsive performance

2021 ◽  
Vol 170 ◽  
pp. 479-489
Author(s):  
Amina L. Mohamed ◽  
Ahmed G. Hassabo
Keyword(s):  
Cellulosic Fabric

scholarly journals Impact of Esterification on Physicochemical Properties of Cellulosic Fabric using Balanites Aegyptiaca Seed Oil

2019 ◽  
pp. 1-13
Author(s):  
F. I. Omizegba ◽  
K. A. Bello ◽  
H. M. Adamu ◽  
D. E. A. Boryo ◽  
J. O. Abayeh ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Seed Oil ◽  
Toxic Chemicals ◽  
Purification Process ◽  
Balanites Aegyptiaca ◽  
Remarkable Improvement ◽  
Weft Direction ◽  
Textile Finishing ◽  
Cellulosic Fabric ◽  
First Time

This paper presents the results of some physicochemical properties of cellulosic fabric obtained by esterification using 50 cm3 of oil extracted from the seed of Balanites aegyptiaca. The oil was extracted under reflux with hexane which gave 40% yield and 0.22% moisture content. The identified cellulosic materials 10 cm and 21 cm x 2.5 cm) were subjected to purification process of scouring, bleaching and mercerization to obtain cleaner, whiter and stronger fabric that could withstand esterification treatment. The yarn crimp was 25% and 15% for warp and weft direction respectively, while the grey fabric gave the lowest of 5% and 8% for warp and weft directions. The linear density (45 tex) was recorded for the esterified fabric compared to 37 tex for the grey fabric along warp direction. The fabric sett increased from 24 thd/cm for grey to 27 thd/cm for esterified along warp direction and 16 thd/cm to 23 thd/cm along weft direction. There was an obvious reduction in shrinkage from 31 for mercerized fabric to 28 along warp direction after esterification and 21 to 19 along weft direction. The tensile parameter was 262.60 N and 166.24 N with extension of 13.92 mm and 12.23 mm along warp and weft directions respectively while the grey fabric recorded 223.87 N and 109.39 N with extensions of 3.64 mm and 3.56 mm in warp and weft direction respectively. There was a remarkable improvement in the dry and wet crease recovery angles after esterification (105º dry and 65º wet, 102º dry and 59º wet) along warp and weft direction respectively. The grey fabric gave the lowest crease recovery (50º dry and 37º wet, 45º dry and 35º wet) along warp and weft directions respectively. The esterified fabric recorded lower water absorption. The improvements in the investigated properties may be due to dimensional stability, flexibility and fineness due to esterification. This research is commendable because biodegradable organic seed oil is used to modify the physicochemical properties of cellulosic fabric for the first time. These incredible effects of the seed oil on cellulose is an immense contribution to knowledge, hence the oil is recommended for replacement of the present day toxic chemicals used in textile finishing of cellulosic fabrics.

scholarly journals Multifunctional hyperbranched polyester grafted β-cyclodextrin metal complexes for textile coating

2020 ◽  
Vol 10 (4) ◽  
pp. 6000-6006
Keyword(s):  
Antimicrobial Activity ◽  
Particle Size ◽  
Metal Binding ◽  
Particle Size Analysis ◽  
Diffusion Method ◽  
Size Analysis ◽  
Distribution Analysis ◽  
Organic Pigment ◽  
Escherichia Coli Bacteria ◽  
Cellulosic Fabric

This study approached the developing of grafted beta cyclodextrins (β-CD) for achievement multifunctional properties. Hyperbranched bis-MPA-polyester-16-hydroxyl, generation 2, (HBPE-2) was used as crosslinker in the presence of cobalt (Co) or nickel (Ni) acetate using emulsion technique. The resulting materials were applied in the printing paste for in situ printing of cellulosic fabrics using phthalocyanine organic pigment (C.I: pigment blue 15:3). Fourier transform infrared spectroscopy (FTIR), transmission electron microscope (TEM) and particle size distribution analysis using dynamic light scattering (DLS) technique were examined to illustrate the structure and morphologies of the prepared materials. Moreover, the antimicrobial activity against gram-positive (Staphylococcus aureus) and gram-negative (Escherichia coli) bacteria using the agar diffusion method was also carried out. The FTIR results demonstrated that HBPE-2 can serve as a good crosslinker to obtain the grafted β-CD with high thermal stability and physical attachment relative to the uncrosslinked one. Also, TEM and particle size analysis indicated that successful metal binding to the grafted β-CD was obtained with different morphologies and low particle size relative the uncrosslinked one. All the grafted β-CD samples exhibited good antimicrobial activity up to 20 mg concentration. Besides, the prepared materials accelerated the colour fixation on the surface of the cellulosic fabric prints relative to the used conventional pigment printing under the unfavorable conditions.

scholarly journals Biosafety Evaluation and Quantitative Determination of Poly(hexamethylene biguanide) (PHMB) Coated on Cellulosic Fabrics by Kubelka-Munk Equation

2021 ◽  
Author(s):  
Wen-Yi Wang ◽  
Jia-Chi Chiou ◽  
Wan-Xue Chen ◽  
Jia-Li Yu ◽  
Chi-wai Kan
Keyword(s):  
Quantitative Determination ◽  
Cotton Fabrics ◽  
Bromophenol Blue ◽  
Blue Dye ◽  
Feasible Method ◽  
Colour Strength ◽  
Low Concentrations ◽  
Cellulosic Fabric ◽  
Biosafety Evaluation

Abstract It is a challenge to determine the quantity of cationic finishing agents on the surface of cellulosic fabrics. Herein, we report a direct and feasible method by Kubelka-Munk equation to quantify the cationic poly (hexamethylene biguanide) hydrochloride (PHMB) adsorbed onto cotton fabrics based on the principle of formation of a stable blue dye between PHMB and bromophenol blue sodium (BPB). The adsorption of PHMB onto cotton fabrics was first investigated and the maximum adsorption of PHMB was found to be around 8 mg per gram of cotton fabric. After being dyed with BPB, colour strength shows a positive correlation with PHMB at low concentrations (< 2400 mg/L). A linear relationship with a high correlation (C(PHMB) = (K/S—0.7411)/3.4517, R2 = 0.9983) was thus established between colour strength and PHMB concentration. However, this equation should fulfill four requirements for quantifying PHMB: (1) the distribution of PHMB on the surface of cellulosic fabric should be in the form of a monolayer with the content less than 5.3 mg/g; (2) an excess of BPB dyebath should be applied; (3) the dyeing should come to equilibrium; and (4) the fabrics should be evenly dyed. Moreover, MTT assay results indicate that excess PHMB coated on cotton fabrics can cause cytotoxicity and the quantity of PHMB should not exceed 4.62 mg per gram of cotton fabrics for the purpose of biosafety. The sample can be considered non-cytotoxic if the K/S value is lower than 13.2 after dyeing with BPB.

Bioengineering of a Cellulosic Fabric for Insecticide Delivery via Grafted Cyclodextrin

2005 ◽  
Vol 21 (6) ◽  
pp. 1724-1730 ◽  
Author(s):  
R. Romi ◽  
P. LoNostro ◽  
E. Bocci ◽  
F. Ridi ◽  
P. Baglioni
Keyword(s):  
Cellulosic Fabric

Computational and experimental study of heterofunctional azo reactive dyes synthesized for cellulosic fabric

2020 ◽  
Vol 1221 ◽  
pp. 128753
Author(s):  
Umme Habibah Siddiqua ◽  
Muhammad Irfan ◽  
Shaukat Ali ◽  
Anum Sahar ◽  
Muahmmad Khalid ◽  
...  
Keyword(s):  
Experimental Study ◽  
Reactive Dyes ◽  
Cellulosic Fabric

Preparation of rich handles soft cellulosic fabric using amino silicone based softener, part II: Colorfastness properties

2011 ◽  
Vol 49 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Mohammad Zuber ◽  
Khalid Mahmood Zia ◽  
Shazia Tabassum ◽  
Tahir Jamil ◽  
Syed Barkaat-ul-Hasin ◽  
...  
Keyword(s):  
Cellulosic Fabric ◽  
Amino Silicone

scholarly journals Color and fastness properties of mordanted Bridelia ferruginea B dyed cellulosic fabric

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Jamiu Mosebolatan Jabar ◽  
Ademola Israel Ogunmokun ◽  
Tella Adewale Akanni Taleat
Keyword(s):  
Calcium Chloride ◽  
Metal Ion ◽  
Color Space ◽  
Fastness Properties ◽  
Color Strength ◽  
Bridelia Ferruginea ◽  
Yellow Color ◽  
Dyed Fabrics ◽  
Cellulosic Fabric ◽  
Dyed Fabric

AbstractBridelia ferruginea B dye was extracted from the bark of the tree using aqueous extraction method. Extracted dye was used to dye cellulosic (cotton) fabric in presence of 5% calcium chloride (CaCl2) or 5% alum (KAl(SO4)2·12H2O) of weight of fabric (o.w.f) as mordant. Fabric dyed without mordant was lighter in hue than metal ion mordanted dyed fabrics. The fabrics dyed in presence of calcium chloride as mordant are of deeper hue than those dyed with alum as mordant. Hence, their dye-uptake and color strength (K/S) are in the same order. K/S value of fabric dyed with alum is 43.71% higher than that without mordant and fabric dyed with calcium chloride has K/S value 51.09% higher than dyed with alum as mordant. CIEL*a*b* coordinate indicator and color space quadrant showed that those dyed fabrics without mordant and with alum as mordant are closer to yellow than red color. Those cellulosic fabrics dyed with calcium chloride as mordant are closer to red than yellow color as confirmed in colour space quadrant. Pre-mordanted dyed fabrics are of deeper color than post-mordanted dyed fabrics than meta-mordanted dyed fabrics than unmordant dyed fabric. Fastness properties of B. ferruginea B dyed cellulosic fabrics ranged from good (3) to excellent (5).

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