Microwave‐assisted dyeing of poly(butylene terephthalate) fabrics with disperse dyes

Öner, Erhan; Buyukakinci, Yesim Banu; Sökmen, Nihal

doi:10.1111/cote.12014

Cited by 34 publications

(24 citation statements)

References 31 publications

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“…The fiber bundles to be tested are evenly wrapped on an opaque plastic sheet in both the horizontal and vertical directions whose length, width, and thickness are 2 cm, 2 cm, and 0.1 cm, respectively. The reflectance of the dyed specimen is measured by reflectance spectrophotometry (Spectra Flash SF600, Datacolor) under a D 65 illuminant using a 10° standard observer . From the reflectance values ( R ) at the maximum absorption wavelength (λ max ) for each dye, the corresponding color strength ( K/S ) values of the samples are calculated by using the Kubelka–Munk equation [see eq.…”

Section: Methodsmentioning

confidence: 99%

Improving the UV resistance of aromatic poly(l,3,4‐oxadiazole) fiber using a disperse dye modified with octavinyl POSS. Part 1: Preparation of dye and dyeing

Mao¹,

Song

Guan

2017

J of Applied Polymer Sci

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Modified dyes were obtained by grafting of disperse dyes with octavinyl polyhedral oligomeric silsesquioxanes (POSS) using a Friedel-Crafts alkylation reaction and using different ratios of POSS and the original disperse dye. The modified dyes are used to dye aromatic poly(l,3,4-oxadiazole) (p-POD) fiber to improve its UV resistance. Then the structure of the modified dye is characterized by Fourier transform infrared spectroscopy and NMR, and the effects of the structure of the modified dye and the dyeing conditions on the UV resistance and color strength (K/S value) of the dyed samples are investigated. The results indicated that the UV adsorption peaks of the modified dye solutions are located at the specified UV wavelengths. The UV resistance of the p-POD fiber dyed with the modified dye (1:3) can be effectively improved, and the dyed p-POD fiber can obtain a higher K/S value simultaneously. During the dyeing process, increasing the dyeing temperature and prolonging the dyeing time are both beneficial in improving the anti-UV ability of the dyed p-POD fiber; these changes can effectively promote the fixation of dye molecules into p-POD fibers due to stimulating the motion of dye molecules and p-POD macromolecules.

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Section: Methodsmentioning

confidence: 99%

Improving the UV resistance of aromatic poly(l,3,4‐oxadiazole) fiber using a disperse dye modified with octavinyl POSS. Part 1: Preparation of dye and dyeing

Mao¹,

Song

Guan

2017

J of Applied Polymer Sci

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“…In volumetric heating, the materials can absorb microwave energy and convert it into heat, providing rapid, controlled, selective, and uniform heating. Moreover, microwave heating results in increasing the diffusion of organic molecules into polymers by causing more pores, resulting to increase the fixing rate of dyes into the polymeric textiles (Oner at al., 2013). for 5 mins by microwave methods, subjected to 1 and 5 mins plasma treatment ( f0: no fixing agent and plasma; f1: cationic polymer type fixing agent releasing no formaldehyde ; f2: quaternary polyammonium type fixing agent; f3: cationic modified resin type fixing agent) It can be seen from Figure 3 that, the use of cationic polymer and quaternary polyammonium type fixing agent increases the K/S values where the cationic modified resin type fixing agent shows almost no difference on conventional dyeing, whereas the microwave dyeing shows almost no effect, as this might be attributed the fixing agents by stopping the effect of microwave process.…”

Section: Colour Measurementsmentioning

confidence: 99%

The Effect of Dyeing Properties of Fixing Agent and Plasma Treatment on Silk Fabric Dyed with Natural Dye Extract Obtained from Sambucus Ebulus L. Plant

Dayıoğlu

Kut

Merdan

et al. 2015

Procedia - Social and Behavioral Sciences

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In this study, the natural dye extracted from the fruits of Sambucus Ebulus L. (Dwarf Elder) was used to dye silk fabric. Prior to the dyeing process, the samples were exposed to oxygen plasma pre-treatment at low frequency for 1 and 5 minutes. Following the plasma pre-treatment, the samples were dyed with the natural dye by the use of conventional and microwave dyeing methods. After dyeing procedure, the samples were treated with three different fixing agents. Finally, the effect of plasma pre-treatment and microwave energy, and type of fixing agent as a dyeing procedure on colour fastness to light, rubbing and washing and also the colour strength of the samples were investigated. According to the results, the increase on plasma treatment time and microwave energy increased the colour strength of samples. The fixing agent treatment did not affect much as the colour fastness properties of dyed samples.

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“…(1)). The color strength (K/S value) is used to indirectly characterize the concentration of dye fixed on fiber or fabric surface, which is a semi-quantitative description of color depth of the dyed sample [27]. The K/S value was obtained by the average of five tests.…”

Section: Measurements Of Color Strength Of Dyed Samplementioning

confidence: 99%

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

Mao

Guan

Zhu

2015

Korean J. Chem. Eng.

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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.

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Microwave‐assisted dyeing of poly(butylene terephthalate) fabrics with disperse dyes

Cited by 34 publications

References 31 publications

Improving the UV resistance of aromatic poly(l,3,4‐oxadiazole) fiber using a disperse dye modified with octavinyl POSS. Part 1: Preparation of dye and dyeing

Improving the UV resistance of aromatic poly(l,3,4‐oxadiazole) fiber using a disperse dye modified with octavinyl POSS. Part 1: Preparation of dye and dyeing

The Effect of Dyeing Properties of Fixing Agent and Plasma Treatment on Silk Fabric Dyed with Natural Dye Extract Obtained from Sambucus Ebulus L. Plant

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

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