The Role of Benzyl Alcohol in the Solvent–assisted Dyeing of Acrylic Fibres

Gur‐Arieh, Z.; Ingamells, W.

doi:10.1111/j.1478-4408.1974.tb03168.x

Cited by 39 publications

(9 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A suitable amount of an appropriate electrolyte may also facilitate rapid migration of dye from the solution to the fiber, resulting in deeper shades (Arif et al, 2007). Swelling agents or dyeing accelerators are used for dyeing some highly crystalline synthetic and blended fibers to swell the fiber and enhance absorption into the fiber, thus increasing the degree of substantivity with the dyestuff (Gur–Arieh and Ingamells, 2008; Shao et al, 2019). In this study, Polysorbate 80 (TWEEN 80), a nonionic surfactant and emulsifier, was tested as a surfactant additive; NaCl was the electrolyte; and benzyl alcohol, a common swelling agent reported to have benefitted the dyeing of aramids (Nechwatal and Rossbach, 1999; Zheng et al, 2017), was used.…”

Section: Resultsmentioning

confidence: 99%

Soybean Oil and Nonthermal Plasma Pretreatment to Dye Para‐Aramid Woven Fabrics with Disperse Dye Using a Glycerol‐Based Dye Bath

Morris

Doona

2021

J Americ Oil Chem Soc

View full text Add to dashboard Cite

High-performance para-aramid fibers offer a number of uses as strong, lightweight materials for protective vests, helmets, tires, and other applications. The chemically inert nature of the fibers makes them difficult to dye or durably print by conventional dyeing techniques for textiles, and solution dyeing during production of the fibers can limit the color of para-aramid fabrics to the color of the spun yarn prior to weaving or knitting and thereby limit the practical applications of these textiles as protective outerwear. This study presents a new method developed to improve the dyeing of woven para-aramid fabrics with a disperse dye. Specifically, sequential experimentation proves the beneficial effects of first soaking para-aramid fabrics in soybean oil followed by surface treatment with atmospheric nonthermal plasma and using glycerol as the dispersant and sodium chloride as an electrolyte without the addition of other auxiliary chemicals. Under the optimized treatment conditions of this study, the color strength (K/S value) of dyed para-aramid fabrics increased to 3.89 from 0.35 of the untreated samples as determined from spectral analysis of the sample reflectance in the visible range. Fourier transform infrared spectroscopy analysis revealed that the high content of unsaturated fatty acids in soybean oil and their interaction with reactive species in the ambient nonthermal plasma were the primary factors for improving the color strength of the dyed para-aramid fabrics.

show abstract

Section: Resultsmentioning

confidence: 99%

Soybean Oil and Nonthermal Plasma Pretreatment to Dye Para‐Aramid Woven Fabrics with Disperse Dye Using a Glycerol‐Based Dye Bath

Morris

Doona

2021

J Americ Oil Chem Soc

View full text Add to dashboard Cite

show abstract

“…Swelling agents or dyeing accelerators swell the fibers to facilitate the penetration of dye into the fibers. Swelling agents are particularly useful for increasing the dye substantivity in some instances with highly crystalline synthetic and blended fibers [ 23 , 24 ]. In this study, the nonionic surfactant and emulsifier Polysorbate 80 (TWEEN 80) and the swelling agent benzyl alcohol, both of which have been reported to have benefits in dyeing aramids [ 25 , 26 ], were tested as additives to improve dyeing.…”

Section: Introductionmentioning

confidence: 99%

Dyeing Para-Aramid Textiles Pretreated with Soybean Oil and Nonthermal Plasma Using Cationic Dye

Morris

Doona

2021

Polymers

View full text Add to dashboard Cite

The increasing use of functional aramids in a wide array of applications and the inert nature of aramids against conventional dye and print methods requires developing new dyeing methods. This study aims to use environmentally friendly method with a cationic dye as an alternative for dyeing para-aramid fabrics. Experiments used a multi-factorial design with functions of pretreatment, dye solvent (water and/or glycerol) and auxiliary chemical additives (swelling agent and surfactant) and a sequential experimentation methodology. The most effective dyeing procedures involved the following steps: (i) pretreatments of the fabrics with soybean oil and nonthermal plasma (NTP), (ii) using water at T = 100 °C as the dye solvent, and (iii) omitting other chemical additives. With a commercial cationic dye, these conditions achieved a color strength in K/S value of 2.28, compared to ~1 for untreated samples. FTIR analysis revealed that a functional network formed on the fibers and yarns of the fabrics by chemical reactions of excited plasma species with double bonds in the soybean oil molecules was responsible for significantly improving the color strength. These results extend the potential uses of a renewable material (soybean oil) and an environmentally friendly technology (NTP) to improve the dyeing of para-aramid textiles and reduce the use of harsh dye chemicals.

show abstract

“…As a result, the glass transition temperature (T g ) and dyeing transition temperature (T d ) of the fiber may be expected to be decreased during the carrier dyeing process, and the diffusion rate of dyes and the dye exhaustion to be increased [18,19]. Therefore, carriers could be used in the coloration of synthetic fiber, for example, for acrylic, PVC and polyphenylene sulfide fibers with cationic dyes [19][20][21][22][23], and for polyester and triacetate fibers with disperse dyes [24][25][26].…”

Section: June 2015mentioning

confidence: 97%

New disperse dyeing method of poly(p-phenylene benzobisoxazole) fiber pretreated with polyphosphoric acid

Mao

Guan

Zhu

2015

Korean J. Chem. Eng.

View full text Add to dashboard Cite

Poly(p-phenylene benzobisoxazole) fiber is considered as a high-performance fiber because of its high strength and excellent thermal and chemical stability. It has been used in industrial reinforcement, body armor and military camouflage. But the application of poly(p-phenylene benzobisoxazole) fiber used for protective clothing is limited because it is difficult to dye with conventional dyeing processes. In this work, a carrier dyeing method with disperse dyes was first used to dye the fiber after a pretreatment with polyphosphoric acid. The effects of the carrier structure and dyeing conditions on the color strength of dyed samples were investigated. In addition, the crystallinity and orientation degree of the poly(p-phenylene benzobisoxazole) fibers before and after pretreatment with phthalimide and benzyl benzoate were measured by X-ray diffraction and velocity-oriented test, respectively. The results suggested phthalimide and benzyl benzoate, as carrier, could effectively promote disperse dyeing of the PBO fiber pretreated with polyphosphoric acid. Meanwhile, the optimal conditions for the carrier dyeing were obtained, that is, concentration of carrier 4%, dyeing temperature 150 o C and time 120 min. By way of the carrier dyeing, the K/S value of dyed sample and the percentage of dye exhaustion were greatly improved, while the crystalline structure and orientation degree of the pretreated samples hardly changed. Furthermore, the decreases of the tensile strength and the limiting oxygen index of dyed poly(p-phenylene benzobisoxazole) sample were very little, and the color fastness was also satisfactory.

show abstract

The Role of Benzyl Alcohol in the Solvent–assisted Dyeing of Acrylic Fibres

Abstract: The mechanism of the solvent–assisted dyeing of acrylic fibres using benzyl alcohol has been investigated. The carrier action of benzyl alcohol plays a major role in increasing the rate of dyeing.

Cited by 39 publications

References 9 publications

Soybean Oil and Nonthermal Plasma Pretreatment to Dye Para‐Aramid Woven Fabrics with Disperse Dye Using a Glycerol‐Based Dye Bath

Soybean Oil and Nonthermal Plasma Pretreatment to Dye Para‐Aramid Woven Fabrics with Disperse Dye Using a Glycerol‐Based Dye Bath

Dyeing Para-Aramid Textiles Pretreated with Soybean Oil and Nonthermal Plasma Using Cationic Dye

New disperse dyeing method of poly(p-phenylene benzobisoxazole) fiber pretreated with polyphosphoric acid

Contact Info

Product

Resources

About