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Article
Publication date: 8 February 2022

Zheqing Gong, Shusen Cao, Zhibin Cai and Lijun Chen

There are three double bonds in the chemical structure of diallyl maleate. The purpose of this study is that the acrylate is modified with diallyl maleic anhydride to make the…

Abstract

Purpose

There are three double bonds in the chemical structure of diallyl maleate. The purpose of this study is that the acrylate is modified with diallyl maleic anhydride to make the propionate resin present a spatial network structure, thereby improving the performance of the acrylate resin.

Design/methodology/approach

Methyl methacrylate (MMA) and butyl acrylate(BA) were used as were used as main monomers. Diallyl maleate (DAM) was used as crosslinking monomer and dodecafluoroheptyl methacrylate (DFMA) was used as fluoromonomer. Potassium persulfate (KPS) was used as thermal decomposition initiator, sodium lauryl sulfate (AS) and sodium dodecyl sulfonate (SDS) were used as anionic emulsifiers, and EFS-470 (Alkyl alcohol polyether type nonionic emulsifier) was a non-ionic emulsifier.

Findings

Through optimizing the reaction conditions, the uniform and stable latex is obtained. The polymer of structure was characterized by Fourier transform infrared spectroscopy (FTIR). Thermogravimetric analysis (TGA) and contact angle (CA) were tested on latex films. The particle size and distribution range of emulsion were tested with nano particle size analyzer.

Originality/value

The experimental results showed that the thermal decomposition temperature of the acrylic coating film increased by 20.56°C after modification. In addition, the effect of cross-linking density on the water contact angle of the fluorocarbon groups in DFMA when they migrate to the surface of the latex film during drying has been explored. The experimental results show that a higher degree of cross-linking will hinder the migration of fluorocarbon groups to the surface of the resin film.

Article
Publication date: 19 February 2024

Sabiha Sezgin Bozok

Titanium(IV) oxide nanoparticles (TiO2 NP) were deposited to cotton denim fabrics using a self-crosslinking acrylate – a polymer dispersion to extend the lifetime of the products…

Abstract

Purpose

Titanium(IV) oxide nanoparticles (TiO2 NP) were deposited to cotton denim fabrics using a self-crosslinking acrylate – a polymer dispersion to extend the lifetime of the products. This study aims to determine the optimum conditions to increase abrasion resistance, to provide self-cleaning properties of denim fabrics and to examine the effects of these applications on other physical properties.

Design/methodology/approach

The denim samples were first treated with nonionic surfactant to increase their wettability. Three different amounts of the polymer dispersion and two different pH levels were selected for the experimental design. The finishing process was applied to the fabrics with pad-dry-cure method.

Findings

The presence of the coatings and the adhesion of TiO2 NPs to the surfaces were confirmed by scanning electron microscope and Fourier transform infrared spectroscopy analysis. It was ascertained that the most appropriate self-crosslinking acrylate amount and ambient pH level is 10 mL and “2”, respectively, for providing increased abrasion resistance (2,78%) and enhanced self-cleaning properties (363,4%) in the denim samples. The coating reduced the air permeability and softness of the denim samples. Differential scanning calorimetry and thermogravimetry analysis results showed that the treatments increased the crystallization temperatures and melting enthalpy values of the denim samples. Based on the thermal test results, it is clear that mass loss of the denim samples at 370°C decreased as the amount of self-crosslinking acrylate increased (at pH 3).

Originality/value

This study helped us to find out optimum amount of self-crosslinking acrylate and proper pH level for enhanced self-cleaning and abrasion strength on denim fabrics. With this finishing process, an environmentally friendly and long-life denim fabric was designed.

Details

Pigment & Resin Technology, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0369-9420

Keywords

Article
Publication date: 19 January 2023

Haymanot Enawgaw

The purpose of this paper is to give compiled information on previously applied cotton fabric surface modifications. The paper covered most of the modifications done on cotton…

Abstract

Purpose

The purpose of this paper is to give compiled information on previously applied cotton fabric surface modifications. The paper covered most of the modifications done on cotton fabric to improve its properties or to add some functional properties. The paper presented mostly studied research works that brought a significant surface improvement on cotton fabric.

Design/methodology/approach

Different previous works on surface modifications of cotton fabrics such as pilling, wrinkle and microbial resistance, hydrophobicity, cationization, flame retardancy and UV-protection characteristics were studied and their methods of modification including the main findings are well reported in this paper.

Findings

Several modification treatments on surface modification of cotton fabrics indicated an improvement in the desired properties in which the modification is needed. For instance, the pilling tendency, wrinkling, microbial degradation and UV degradation drawbacks of cotton fabric can be overcome through different modification techniques.

Originality/value

To the best of the author’s knowledge, there are no compressive documents that covered all the portions presented in this review. The author tried to cover the surface modifications done to improve the main properties of cotton fabric.

Details

Research Journal of Textile and Apparel, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 1 September 1981

A highly weather resistant titanium dioxide rutile pigment is now being produced by Bayer. Coated with aluminium, silicon and zirconium compounds and stabilized with Al2O3…

Abstract

A highly weather resistant titanium dioxide rutile pigment is now being produced by Bayer. Coated with aluminium, silicon and zirconium compounds and stabilized with Al2O3, Bayertitan R‐KB‐4 is also organically treated and micronized.

Details

Pigment & Resin Technology, vol. 10 no. 9
Type: Research Article
ISSN: 0369-9420

Article
Publication date: 1 December 1980

E.S. Lower

Dibutyltin dilaurate, (Di‐n‐butyl dilauroyl dioxystannone; (C4H9)2 Sn(OCOC10H20 CH3)2) is a water insoluble oily liquid which can be produced by heating lauric acid with…

Abstract

Dibutyltin dilaurate, (Di‐n‐butyl dilauroyl dioxystannone; (C4H9)2 Sn(OCOC10H20 CH3)2) is a water insoluble oily liquid which can be produced by heating lauric acid with dibutyltin oxide in a molecular ratio of 1:2, for seven hours at 95/100°C. It can also be produced from dibutyltin chloride and sodium laurate.

Details

Pigment & Resin Technology, vol. 9 no. 12
Type: Research Article
ISSN: 0369-9420

Article
Publication date: 1 May 2005

Rkia Refai, Mohamed Hashem and Ali Hebeish

Significant enhancement in the performance of durable press cotton fabric could be achieved through the utilization of non- formaldehyde crosslinking agents along with ionic…

Abstract

Significant enhancement in the performance of durable press cotton fabric could be achieved through the utilization of non- formaldehyde crosslinking agents along with ionic crosslinking. Ionic crosslinking was first effected by subjecting cotton fabric succesively to partial carboxymethylation using monochloroacetic acid and sodium hydroxide, then by cationization using 3-chloro-2-hydroxypropyl trimethyl ammonium chloride known commercially as Quat-188. While the partial carboxymethylation reaction introduces the negatively charged group in the cellulose chains of cotton, the cationization reaction introduces the positively charged groups, thereby causing ionic crosslinking. The ionically crosslinked cotton was then crosslinked using either glyoxal, epichlorohydrin, or gluteral-dehyde. Most of the results obtained indicated that a balance between wet and dry wrinkle recovery angles that acquired a value as high as 300° could be obtained without loss in tensile strength and elongation at break. The results also revealed that the degree of ionic crosslinking relies on the nitrogen and carboxyl contents of the finished fabric as well as on the nature of the non-formaldehyde finishing agent used. Indeed the results of this work present a new approach to the durable press finishing of cotton, and mill trials should be conducted.

Details

Research Journal of Textile and Apparel, vol. 9 no. 2
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 5 July 2021

Abolfazl Zare

The purpose of this paper is to assess the possibility of cross-linking silk fabric using citric acid (CA) as the cross-linking agent and nano-TiO2 (NTO) particles as a catalyst…

Abstract

Purpose

The purpose of this paper is to assess the possibility of cross-linking silk fabric using citric acid (CA) as the cross-linking agent and nano-TiO2 (NTO) particles as a catalyst at low temperature and under UV irradiation. This paper also assesses the possibility of treated samples with suitable combinations of CA and NTO to impart multiple functional properties such as self-cleaning and antimicrobial properties.

Design/methodology/approach

In this research, ß-cyclodextrin (ß-CD) grafted onto silk fabric using CA as a crosslinking agent and NTO particles as a catalyst through a pad-dry-cure technique and with UVA irradiation. The effects of different concentrations of CA, ß-CD and NTO particles on some properties of the treated samples are evaluated, and the optimum finishing conditions are obtained. The author also investigated the washing durability of the modified product after ten times of washing.

Findings

The results showed that CA plays the role of a linking agent through an esterification reaction with the hydroxyl groups of both ß-CD and silk fabrics and improves the durability of materials on the textile surface. Also, the silk fabrics treated with CA only were found to have excellent photocatalytic properties and better antibacterial activity than the control sample and the fabrics treated with a mixture of ß-CD/CA.

Originality/value

This study was conducted to achieve multiple functions such as antibacterial and photocatalytic activities, good dry crease recovery angle and wet crease recovery angle behavior without a significant adverse effect on the Yellowness index and tensile properties for treated silk fabrics.

Details

Research Journal of Textile and Apparel, vol. 26 no. 3
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 1 May 2013

Prof. S.K. Laga and Prof. Dr. A.I. Wasif

Textile finishing is the heart of textile processing. It aims to improve aesthetic appeal, dimensional stability, serviceability and alike. The object of resin finishing is to…

Abstract

Textile finishing is the heart of textile processing. It aims to improve aesthetic appeal, dimensional stability, serviceability and alike. The object of resin finishing is to improve crease recovery. Conventional resin pre-condensates are effectively used for this purpose. Most of these resin pre-condensates are not eco friendly due to the presence of free or released formaldehyde. Due to eco awareness and green technology, it has been imperative to use eco-friendly crosslinking agents for resin finishing. Polycarboxylic acids like BTCA, PTA, etc. can be used as eco-friendly crosslinking agents. However, they are costly, and not easily available. Thus, an attempt has been made in the present study to explore the possibility of using a combination of glyoxal and glycol as a crosslinking agent at various concentrations to finish 100% cotton fabric. These treated fabric samples have been cured at various temperatures (1400C, 1500C & 1600C) for periods of 1, 2 and 3 min. Moreover, various formulations have been tested by using various additives, like PE, PEG-200, TEA, DEA, and their combinations, to improve the strength and the whiteness of finished fabrics. Various tests to determine crease recovery, strength, whiteness index, durable press rating, and bending length have been carried out to assess the quality of the finished fabric. Very encouraging results in terms of dry crease recovery angle, bending length, % strength retention and durable press rating have been obtained.

Details

Research Journal of Textile and Apparel, vol. 17 no. 2
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 23 November 2020

Farhana Naeem, Fareha Asim and Muhammad Tufail

Low pilling and wrinkle-free appearance of cellulosic fabrics are always demanded. Resin finishes are applied to improve these properties, but there is an adverse effect of the…

Abstract

Purpose

Low pilling and wrinkle-free appearance of cellulosic fabrics are always demanded. Resin finishes are applied to improve these properties, but there is an adverse effect of the resin finish as it tends to reduce the strength of the fabrics. Therefore, the effect of the two most important finishes; anti-pilling and resin finish, on the strength characteristics of 100% viscose and 50:50 Viscose/cotton plain and satin fabrics were investigated in this paper. The purpose of this study is to identify significant factors affecting the strength of fabrics finished with crosslinking agents [non-ionic acrylate copolymer and (dimethyloldihydroxyethyleneurea)].

Design/methodology/approach

A statistical model of 23 32 mixed level factorial design was used for the study. Appratan N9211 (A) and Arkofix NF (B) were tested at three concentrations, whereas three factors fabric; weave (C), blend ratio (D) and curing method (E) were tested at two levels. The performance of the finish was evaluated by two response variables, which were tensile and tear strength.

Findings

The various conditions of high strength values of the fabrics were presented in this paper. It was found that the tear strength of the fabrics increased after finishing except for 50:50 viscose/cotton plain fabric, whereas the tensile strength of plain fabrics is better at shock cure and for a satin normal cure is better. The model adequacy plots exhibit that the assumptions of normality and independence are not desecrated. Moreover, the values of “predicted R2” are in reasonable agreement with the “adjusted R2,” which confirms that models have been accounted for most of the inconsistency.

Originality/value

This paper is a part of my PhD dissertation. Unlike the previous studies, this paper investigated the effect of two crosslinking agents, Appretan N9211 as anti-pilling and Arkofix NF as wrinkle resistant agents on 100% viscose and 50:50 viscose/cotton plain and satin. Three different concentrations of both the crosslinking agents were used. Also, fixation of the finishes was carried out at a normal cure and shock cure.

Article
Publication date: 15 December 2020

Kh M. Mostafa and A.A. El-Sanabary

This study aims to use multi-functional viscose fabric that was facilely developed with with respect to ease and care characteristics, reinforcement effect and antibacterial…

Abstract

Purpose

This study aims to use multi-functional viscose fabric that was facilely developed with with respect to ease and care characteristics, reinforcement effect and antibacterial activity by using novel echo friendly antibacterial finish based on citric acid/sodium hypophosphite and the authors’ previously tailor-made poly meth acrylic acid (MAA)-chitosan graft copolymer via alternative microwave curing approach instead of traditional high-temperature cure one.

Design/methodology/approach

Viscose fabric was paddled twice in the cross-linking formulations containing different concentrations of citric acid, poly (MAA)-chitosan graft copolymer and sodium hypophosphite to 90 % wet pick up and dried at 100°C for 3 min in an electric oven. Then, the treated fabrics were placed on the disk spinner of the microwave oven and cured at different power (100–800 Watt) for various durations (60–180 s). The fabric was then water-rinsed and dried at ambient condition before use.

Findings

Results revealed that the above echo friendly method for finished viscose fabrics was found to achieve relatively high dry wrinkle recovery angle and maintain the loss in tensile strength within the acceptable range, as well as antibacterial activity against Escherichia coli and Staphylococcus aureus as a gram-negative and gram-positive bacteria, respectively; in addition to durability up to ten washing cycles. Furthermore, scanning electron microscope images, nitrogen content and add on % of the finished fabric confirmed the penetration of grafted chitosan inside the fabric structure. The tentative mechanism for these reactions is advocated.

Originality/value

The novelty addressed here is undertaken with the advantages of using citric acid as a nonformaldehyde, safe and cheap poly carboxylic acid as a crosslinking agent and sodium hypophosphite as a potential catalyst, in addition to the authors’ noncitable multifunctional echo friendly tailor-made poly (MAA)-chitosan graft copolymer for imparting reinforcement and antibacterial characteristics to viscose fabric that uses the pad-dry/cure microwave fixation for progressively persuaded heat within the fabric during curing.

Research limitations/implications

This was done to see the impact of microwave as green and efficient tool with respect to reduction in organic solvents, chemicals and exposer time as well as fixation temperature on the finishing reaction in comparison with traditional pad-dry-cure method.

Practical implications

Poly (MAA)-chitosan graft copolymer as amphoteric biopolymer was expected to impart multifunctional properties to viscose fabrics especially with comparable dry wrinkle recovery angle and minimize the loss in tensile strength in addition to antibacterial properties in comparison with untreated one.

Details

Pigment & Resin Technology, vol. 50 no. 4
Type: Research Article
ISSN: 0369-9420

Keywords

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