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Dying of Wool Fiber Using Damask Rose Residue Obtained from Process of Rose Water Extraction and Comparing It with Pomegranate Colorant
Mr Mohammad Reza Shahparvari, Dr Seyed Jalal-Eddin Bassam,
Volume 7, Issue 19 (9-2011)
Abstract
 Every year, during rose water extraction a huge amount of damask rose residue is produced. The transportation and disposal of these waste materials create some problems including an increase in the price of the produced rose water. In this study the use of damask rose residues in dyeing wool is assessed and a method for its use as a colorant in natural dyeing is offered. Dyeing was carried out by using the material along with some mordants such as alum, copper sulphate, iron sulphate, chlorine and tin and also without mordant by adopting pre-mordanting technique. Various amounts of mordants and colorants were used. Comparing the obtained color hue with those from other traditional colorants, it was observed that the color hue obtained from damask rose residues was greatly similar to the color hue gained from pomegranate peel. These two color hues were analyzed and compared using the carpet weavers’ views as well as measuring wash and light fastness properties using experimental methods. The results indicate that damask residues can be used as a new natural colorant particularly in carpet production. This can provide a new colorant with minimum expenses, reduce the price of rose water extraction, and prevent environmental pollution.

Extraction and dyeing of wool fibers with Walnut Shell using ultrasonic waves
Mrs Robabeh Taghizadeh Borujeni, Dr Ahmad Akbari, Mr Abdolsalim Gharehbaii,
Volume 11, Issue 28 (3-2016)
Abstract

Today, much research is conducted on the use of new methods of dyeing textiles, all of which are trying to select an appropriate method of reducing the usage of energy and chemicals in a way to produce cost-effective products with an acceptable uniformity. One of these methods is the use of ultrasonic waves. Since the dyestuff is extremely limited by the plant cell membrane, extraction methods such as ultrasonic ones can better improve the mechanism of extracting natural dyes and dyestuff out of cell membranes and also improve the transfer of dyestuff onto fibers’ dyeing process in order to  assist in conservation of natural resources,

The aim of this study is to use ultrasonic waves in the extraction of dyestuff of walnut shell and to dye wool fibers with the extract. Favorable results are obtained compared to conventional screw. By calculating the absorption efficiency with conventional ultrasound method, it was concluded that the use of ultrasonic waves can increase the concentration of the dye in solution more than the conventional method and by increasing the concentration of the dye in both methods, this factor is increased. According to the findings, it is concluded that ultrasonic extraction method is more efficient than the usual one. To investigate the effects of ultrasonic method in the dyeing process, the productivity of ultrasonic method in dyeing was calculated in relation to conventional method in two modes of (UU) and (UC). The productivity of (UU) in relation to (UC) was % 13/77.   Various mechanical aspects are included to achieve the positive effect of the use of ultrasonic waves in dyeing process such as degassing of fiber, stimulation of dyeing solution, rapid spread of dyestuff on fiber and breaking the gathering of dyeing molecules. These cause a higher influence of the dyestuff in the fibers and a sheer deep dye. Measurement of stabled samples results show that the stability of the samples in both ultrasonic and conventional methods, has been fair to good. The results of the SEM analysis clearly presents this conclusion. Creating a kind of surface erosion and degradation scales, which led to greater influence and power of color dye into the fiber, increases the effects of cavitation. They are considered to be seen in the SEM images.


Study of Compatibility of natural dyes in dyeing of woolen yarn without mordant and mordant with potassium alum sulphate
Mr Mohammad Reza Shahparvari, Dr Siyamak Safapour, Dr Kamaladin Gharanjig,
Volume 13, Issue 32 (3-2018)
Abstract
To increase the color range of textile. Dyeing is to be done with more than one color-shedding substances, However before the conduction of Dyeing with the form of combining color-substances, the capability and probability of the combination, that is to be tested with the scale of degree in compatibility, has to be considered.
Bearing in mind the necessity of producing a high range of color in hand-woven carpet and importance of compatibility in dyeing materials, this research is looking for the extent of compatibility in color, substances including: Madder, weld, Prangos ferulacea and walnut shell on woolen thread, Raw and mordanted with aluminum sulfate as one of the means of estimating compatibility
The result has shown that the dyeing capability in woolen thread with walnut shell in comparison with three other color shedding substances is variable. thus the similarity in extent of compatibility in three color- shedding substances: Madder substances: madder weld and Prangos ferulacea shows the high compatibility they have in common.
However differences in the diagram of dyeing of walnut shell shows little compatibility of these substances in getting combined with madder, weld and Prangos ferulacea.
After the calculating the capacity of dyeing in each of coloring substances woolen thread (on the basis of even combination of four dyeing substances with three different ratio) was dyed. The result shows that dyeing compatibility in Madder, weld and Prangos ferulacea in combination with each other is good to excellent in diagram. While combination of walnut shell with three other color substances caused very low compatibility. In addition to that, results show the effect of density and using dents in coloring.
On the whole result of this research have shown that dyeing substances madder weld and Prangos ferulacea have high compatibility with each other and have combination compatibility in the same range while possibility of combining three substances with walnut shell, duo to low compatibility is very low. The way of conducting this research is pragmatic and gathering of all the information is laboratory and library-based.

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