Comparison of Dyeing Properties between PPT and PET Fiber

2015 ◽  
Vol 1089 ◽  
pp. 3-6
Author(s):  
Shu Ling Cui
Keyword(s):  
Comparative Study ◽  
Process Parameters ◽  
Dyeing Properties ◽  
Dyeing Process

A comparative study of dyeing properties of PPT and PET fiber is carried out. Experiments show that the K/S value, dyeing up-take, and permeability of PPT fiber are obviously higher than those of PET fiber under the same dyeing conditions. The optimized dyeing process parameters for PPT fiber are temperature 110°C, pH 7, and time 40 min.

scholarly journals A Comparative Study on Dyeing Properties of Hemp and Cotton Fiber

2017 ◽  
Vol 13 (33) ◽  
pp. 378 ◽  
Author(s):  
Shekh Md. Mamun Kabir ◽  
Rezaul Karim ◽  
Khayrul Islam
Keyword(s):  
Comparative Study ◽  
Cotton Fabric ◽  
Cotton Fiber ◽  
Reactive Dye ◽  
Woven Fabrics ◽  
Fastness Properties ◽  
Dyeing Properties

In this study, a mixed bi-functional reactive dye was applied to the cotton and hemp woven fabrics. Their dyeing and fastness properties were compared. From the results, it was observed that the cotton fabric exhibits better exhaustion and levelness than hemp woven fabrics. The build-up and fastness properties of the two woven fabrics appeared to be almost similar.

On effect of chemical-assisted mechanical blending of barium titanate and graphene in PVDF for 3D printing applications

2020 ◽  
pp. 089270572094537
Author(s):  
Ravinder Sharma ◽  
Rupinder Singh ◽  
Ajay Batish
Keyword(s):  
Mechanical Properties ◽  
Barium Titanate ◽  
3D Printing ◽  
Comparative Study ◽  
Process Parameters ◽  
Processing Temperature ◽  
Melt Mixing ◽  
Twin Screw ◽  
3D Printed ◽  
The Comparative Study

The polyvinylidene difluoride + barium titanate (BaTiO3) +graphene composite (PBGC) is one of the widely explored thermoplastic matrix due to its 4D capabilities. The number of studies has been reported on the process parameters of twin-screw extruder (TSE) setup (as mechanical blending technique) for the development of PBGC in 3D printing applications. But, hitherto, little has been reported on chemical-assisted mechanical blending (CAMB) as solution mixing and melt mixing technique combination for preparation of PBGC. In this work, for preparation of PBGC feedstock filaments, CAMB has been used. Also, the effect of process parameters of TSE on the mechanical, dimensional, morphological, and thermal properties of prepared filament of PBGC have been explored followed by 3D printing. Further, a comparative study has been reported for the properties of prepared filaments with mechanically blended composites. Similarly, the mechanical properties of 3D printed parts of chemically and mechanically blended composites have been compared. The results of tensile testing for CAMB of PBGC show that the filament prepared with 15% BaTiO3 is having maximum peak strength 43.00 MPa and break strength 38.73 MPa. The optical microphotographs of the extruded filaments revealed that the samples prepared at 180°C extruder temperature and 60 r/min screw speed have minimum porosity, as compared to filaments prepared at high extruder temperature. Further, the results of the comparative study revealed that the filaments of CAMB composites show better mechanical properties as compared to the filaments of mechanically mixed composites. However, the dimensional properties were almost similar in both cases. It was also found that the CAMB composites have better properties at low processing temperature, whereas mechanically blended composites show better results at a higher temperature. While comparing 3D printed parts, tensile strength of specimens fabricated from CAMB was more than the mechanically blended PBGC.

Study on Dyeing Properties of Black Rice Pigment on Tussah Silk

2013 ◽  
Vol 821-822 ◽  
pp. 626-629 ◽  
Author(s):  
Yan Mei Jia
Keyword(s):  
Ph Value ◽  
Visible Spectrum ◽  
Black Rice ◽  
Natural Pigment ◽  
Dyeing Properties ◽  
Dyeing Process ◽  
The Stability ◽  
Dyed Fabric ◽  
Mordant Dyeing ◽  
Color Depth

To enrich the color of natural dyes, a natural pigment was extracted from black rice and used to dye tussah silk. The stability of the extract to mordant ions was investigated by Visible Spectrum and the effect of the dyeing pH, dyeing temperature, dyeing time as well as mordant process on dyeing properties (K/S value) were studied, the optimum dyeing process was obtained. The results show that the optimized direct dyeing process is pH value 4. 5, dyeing at 90 °C for 60 min, the color of dyed fabric various with metal ions. In comparison, the fabric post-mordant dyeing with ferrous sulfate exhibits the higher color depth and better color fastness.

Optimization of Screw Rolling Ball Process Parameters Based on Orthogonal Test

2012 ◽  
Vol 201-202 ◽  
pp. 1190-1193 ◽  
Author(s):  
Xiao Zhong Ren ◽  
Yong Qing Liu ◽  
Yu Rong Jin
Keyword(s):  
Comparative Study ◽  
Process Parameters ◽  
Orthogonal Test ◽  
Rolling Temperature ◽  
Optimal Combination ◽  
Screw Rolling ◽  
Specific Measure ◽  
Rolling Ball ◽  
Related Process

The selection and optimization of screw rolling ball process parameters were analyzed and discussed. The inner stress of ball is the major factor that affects the ball quality during screw rolling of ball. The inner stress is apt to be affected by other related process parameters. In practical, there is no specific measure to determine the parameters. In view of this situation, the influences of roller obliquity, rolling temperature, speed of roller and the outlet distance between guide boards and other parameters on the inner stress of ball were analyzed respectively through orthogonal test. The optimal combination of parameters was found through comparative study on several parameter combinations.

Red cabbage anthocyanins content as a natural colorant for obtaining different color on wool fibers

2020 ◽  
Vol 49 (3) ◽  
pp. 229-238
Author(s):  
Hossein Barani ◽  
Homa Maleki
Keyword(s):  
Process Parameters ◽  
Blue Color ◽  
Content Type ◽  
Natural Colorant ◽  
Red Cabbage ◽  
Dyeing Process ◽  
Wool Fibers ◽  
Hue Angle ◽  
Promising Application ◽  
Different Color

Purpose Finding blue colorants from natural sources is extremely difficult and, usually, the anthocyanin compounds are used for producing the blue color. This study aims to apply the Red Cabbage as a natural colorant to obtain different colors on wool yarn, as well as specify the optimum dyeing condition by response surface methodology for obtaining a blue color. Design/methodology/approach The effect of dyeing process parameters such as mordant concentration, dyeing time, pH of dyeing bath and dyeing temperature examined in the color characteristics of the dyed wool samples. Findings The obtained results indicated that the diverse colors achieve by varying the dyeing process parameters, which is in the range of 26° up to 271°. The non-mordanted dyed wool samples showed a red and red brownish color (Hue angle = 26° up to 70°), and the mordanted dyed wool samples showed a blue and blue-greenish color (Hue angle = 230° up to 271°). The obtained blue color with the optimized dyeing condition presented a considerable good wash and lightfastness. Originality/value This study provides a promising application of Red Cabbage as a natural colorant for obtaining different colors by varying the dyeing process parameters such as pH and stannous ion concentrations. The stannous ions yielded a co-pigmentation and presented a blue color on wool fibers, which is extremely difficult to obtain with natural colorant.

Dyeing Properties of Tussah Silk Fabric with Indigo Naturalis and Turmeric

2011 ◽  
Vol 331 ◽  
pp. 352-355 ◽  
Author(s):  
Xu Hao ◽  
Yan Hua Lu
Keyword(s):  
Ph Value ◽  
Relative Concentration ◽  
Reduction Process ◽  
Silk Fabric ◽  
Single Factor ◽  
Dyeing Properties ◽  
Dyeing Process ◽  
Indigo Naturalis ◽  
Grade 3 ◽  
Single Factor Experiment

Two vegetable dyes of indigo naturalis and turmeric were combined on dyeing tussah silk fabric with two steps. The first step is dyeing the silk fabric with indigo naturalis by reduction process, and then dyed with turmeric by direct dyeing process. The results of single factor experiment on the indigo naturalis dyed tussah silk fabric dyeing with turmeric indicated that the relative concentration, pH value, dyeing temperature, and dyeing time had effect to a certain extent on the over dyeing. The dyeing conditions were determined by the above single factor experiment. The rubbing fastness and washing resistance of the dyed silk fabric could achieve to grade 3 more than grade 3.

Functional Testing of Direct Metal Laser Sintered (DMLS) Components for Automotive Application

2011 ◽  
Vol 383-390 ◽  
pp. 6242-6246 ◽  
Author(s):  
C.D. Naiju ◽  
M. Adithan ◽  
Pezhinkattil Radhakrishnan ◽  
Y. Upendra Sravan
Keyword(s):  
Comparative Study ◽  
Process Parameters ◽  
Wear Behavior ◽  
Automotive Application ◽  
Functional Testing ◽  
Direct Metal Laser Sintering ◽  
Automobile Engine ◽  
Starter Motor ◽  
Manufacturing Methods ◽  
Hatch Spacing

This work presents the results of a study to determine the wear behavior of components manufactured by direct metal laser sintering (DMLS). Wear is an important issue in using layer manufactured parts for functional application. Two different bushes were selected for the functional testing for wear behavior studies. Specimens (bushes) were manufactured by DMLS technology and was tested for wear behavior and compared with bushes manufactured by conventional manufacturing methods. Components were manufactured by using the process parameters like sintering speed, hatch spacing, post contouring speed, hatch type and infiltration with an optimized value. Testing was carried out for bushes, used for an automobile engine starter motor. A comparative study for the wear behavior was carried out and results are discussed.

Structure and dyeing properties of jade fibre

2014 ◽  
Vol 43 (3) ◽  
pp. 139-144
Author(s):  
Shuling Cui
Keyword(s):  
Adsorption Mechanism ◽  
Polyester Fibre ◽  
Cationic Dyes ◽  
Disperse Dyes ◽  
Disperse Dye ◽  
Cationic Dye ◽  
Absorption Mechanism ◽  
Dyeing Properties ◽  
Content Type ◽  
Dyeing Process

Purpose – Based on clarifying the structural difference between jade fibre and general polyester fibre, this paper aims to study the dyeing properties and dyeing adsorption mechanism of jade fibre with disperse dye and cationic dye. Design/methodology/approach – The chemical structure and microstructure of jade fibre were briefly explained comparing with ordinary polyester fibre. The dyeing rate curve and dyeing adsorption isotherm of disperse dyes and cationic dyes on jade fibre were, respectively, studied. The dyeing uptake, dyeing absorption mechanism, and the main dyeing process parameters were proposed. Findings – Jade fibre can be dyed with cationic dye and disperse dye. The suitable exhaust dyeing process is 110°C and 40 minutes for disperse dye, 100°C and 60 minutes for cationic dye. The dyeing uptake on jade fibre with both disperse dyes or cationic dyes is much higher than that on general polyester fibre and acrylic fibre, and the dyeing adsorption mechanism belongs to the combination of Langmuir and Nernst adsorption for disperse dyes and Langmuir adsorption for cationic dyes. Comparing with ordinary polyester fibre, jade fibre has the advantage of low temperature dyeing and reduced effluent, as is significant to energy-saving and emission reduction. Originality/value – Jade fibre is a new type of modified polyester fibre with the function of health protection and energy conservation. There are little technical data in the literature at present about the dyeing property of jade fibre.

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