ChapterPDF Available

Study about Linen Fabric on the Surface Applied Natural Herbal Dyes to Improving the Colour Fastness and Absorbency Characteristic Properties

Authors:
_____________________________________________________________________________________________________
1Department of Handloom and Textile Technology, Indian Institute of Handloom Technology, Varanasi, Uttar Pradesh, India.
2Department of Textile Engineering, Giani Zail Singh Campus, College of Engineering and Technology, Maharaja Ranjit Singh
Punjab Technical University, Bathinda, Punjab, India.
*Corresponding author: E-mail: ramratan333@gmail.com;
Chapter 5
Print ISBN: 978-93-5547-124-6, eBook ISBN: 978-93-5547-132-1
Study about Linen Fabric on the Surface Applied
Natural Herbal Dyes to Improving the Colour
Fastness and Absorbency Characteristic Properties
Ramratan Guru1*, Rohit Kumar2 and Deepika Grewal2
DOI: 10.9734/bpi/nper/v2/4039F
ABSTRACT
These day, natural herbal textile dye garment products are preferred by all consumers. These herbal
dye cloths are more environmentally friendly. It provides a non-toxic, chemical-free product that does
not harm the environment or nature. Herbal textiles are dyed entirely with herbal extracts, without the
use of any chemicals. Herbs are used instead of vegetable dyes because they are not only natural but
also have medicinal value. These herbs are applied directly to the fabric with the help of natural
ingredients, so that the medicinal value of the herbs is preserved, because synthetic dyes create a
large amount of waste and unfixed colourants pose a serious health risk and disrupt the eco balance
of nature. Environmental concerns about the production and use of synthetic dyes have reignited
consumer interest in natural dyes. In this study, we used natural herbal dyes on the surface of linen
fabrics. Turmeric, aloe vera, neem, beetroot, pomegranate, and onion were used as natural herbal
dyes in this work. Color fastness and dye absorbency performance have been improved using edible
gum and cow urine. We have found that herbal dyes appearances on linen fabric surface is very
good. It has observed that, a dry and wet rubbing fastness property has very good herbal dyes on
linen fabric surface. The primary goal of this research is to provide a new approach to natural herbal
dyes products that will be more widely used in the textile industry. It will also aid in the reduction of
diseases such as skin allergies and skin infections.
Keywords: Linen fabric; edible gum; cow urine; wash fastness; rubbing fastness; colour fastness to
light.
1. INTRODUCTION
Natural dyes are derived from natural sources, such as plants, animals, and minerals. However,
natural colours may not have the desired shade or fastness; they were also scarce and expensive;
however, natural dyes were applied without the use of any chemicals. These are directly applied to
the fabric using edible gum and cow urine. Its dyeing process does not involve the use of any
chemicals. Whereas some chemicals such copper sulfate and ferrous sulfate are used as catalysts [1,
2]. The fabric is made of 100 percent cotton and linen and is free of any chemical, making it free of
toxins and irritants as people around the world become more health conscious. Herbal treated such
as neem, turmeric, aloe vera, pomegranate, onion cloth has the ability to protect from various skin
diseases, provides relief from viral infected disease and mental depression since herb finished clothes
or garments come in prolonged contact with the human body. The medical properties of herb no
damage to the human body and protective the various skin infections but the case of synthetic dyes is
available and cheap for commercial use [3-6]. It is extremely harmful environment and health as it
leaves a tremendous amount of waste and allergic in contact with human body. And now a day the
environmental issue is rising all over the world. This is the main reason of transferring to natural dyes
Novel Perspectives of Engineering Research Vol. 2
Study about Linen Fabric on the Surface Applied Natural Herbal Dyes to Improving the Colour Fastness and Absorbency
Characteristic Properties
60
from synthetic dyes. The main purpose of using natural dye is to make the process eco-friendly and
hygienic [7-10]. Most of the commercial dyers and textile export houses have started re-looking to the
maximum possibilities of using natural dyes for dyeing and printing of different textiles for targeting
niche market. Natural dyes produce very uncommon, soothing and soft shades as compared to
synthetic dyes [11-16]. On the other hand, synthetic dyes, which are widely available at an
economical price and produce a wide variety of colours, sometimes causes skin allergy and other
harmfulness to human body, produces toxicity/chemical hazards during its synthesis, releases
undesirable/hazardous/toxic chemicals etc. The wide varieties of exotic shades produced by natural
dyes are parallel with the synthetic range and hence can replace them with ease. At present, little
information in this aspect is available [17-20]. Natural dyes are being considered as a more
environmentally friendly substitute for synthetic dyes but these have few draw backs low colour
fastness property is one. But no study reported on improving the colour fastness properties of natural
dyes with a natural dye fixing agents. So, in this article results were shown the improvement of colour
fastness of natural dyes with natural dye fixing agents.
2. MATERIALS AND METHODS
Fig. 1. 100% linen woven fabric
Table 1. Fabric specifications
S. No
Type
100% linen woven fabric
1.
Warp count
30
2.
Weft count
30
3.
EPI
66
4.
PPI
49
5.
GSM
140
6.
Weave design
Plain
2.1 Turmeric
Turmeric belongs to some family as ginger. Turmeric is the most popular dye in textile dyeing.
Turmeric is a rich source of phenolic compound is known as curcuminoids. It has antioxidant and skin
lightening properties and might to be used to treat skin inflammation making. These compounds are
useful in cosmetic formulation. Turmeric was and is still used for textile painting and printing in India.
2.2 Neem
Neem is a natural herb that comes from the neem leaves. Another name for which include
azadirachtaindica. Neem leaves can produce light yellow green color in cotton fabric. The main
reason of choice neem leaves has antibacterial properties. The nano emulsion of neem at lower
concentration can be used as an effective antibacterial agent for treatment of pathogenic bacterial
infection without any toxicity to human system.
Novel Perspectives of Engineering Research Vol. 2
Study about Linen Fabric on the Surface Applied Natural Herbal Dyes to Improving the Colour Fastness and Absorbency
Characteristic Properties
61
Fig. 2. Turmeric
Fig. 3. Neem paste
2.3 Aloe Vera
Aloe Vera is a succulent plant species of the genus aloe. Aloe vera is a medicinal plant that’s been
used to treat various health conditions. Aloe Vera gel uses a skin treatment. The aloe Vera plant
which is about 1-2 feet tall hold leaves that contains a slushy translucent gel. The waste parts of the
aloe Vera leaf could be used as a natural dye for dyeing textile fabric.
Fig. 4. Aloe vera
Novel Perspectives of Engineering Research Vol. 2
Study about Linen Fabric on the Surface Applied Natural Herbal Dyes to Improving the Colour Fastness and Absorbency
Characteristic Properties
62
2.4 Onion
Using red yellow onion skins is a really fun and economical way to dye fabric. Red and yellow onion
skin can produce different color. In my experience on cotton fabric, the red onion skin produce yellow
with greener tones and the yellow onion skin produce more orange tones. The outer skin of this
common vegetable is one of the most useful and readily available dyestuffs.
Fig. 5. Onion
2.5 Beetroot
Beetroot commonly known as beets are a popular root vegetable used in many cuisines around the
world. Beetroot is the main coloring compound present in red beetroot juice color.
Fig. 6. Beetroot juice
2.6 Pomegranate
The pomegranate is one of the oldest fruit in cultivation and its rind has been used as a dye by carpet
makers for millennia. This dye is high in tannin. Therefore it works particularly will with cotton, linen
and other plant fiber. The pomegranate fruit yield on ochre yellow dye and the skin is rich in tannin.
2.7 Edible gum
Edible gum is natural product obtained from trees. Edible gum is water soluble which makes it easy to
mix with a range of ingredients. Edible gum used as a binding and a thickening agent. Edible gums
are using improve the color fastness in linen fabric.
Novel Perspectives of Engineering Research Vol. 2
Study about Linen Fabric on the Surface Applied Natural Herbal Dyes to Improving the Colour Fastness and Absorbency
Characteristic Properties
63
Fig. 7. Pomegranate
2.8 Cow urine
Cow urine is a liquid by product of metabolism in cows. Cow urine is also used in medicine in India.
Cow urine is a present antibacterial property. The various studies have found good antimicrobial
activity of cow’s urine. Cow urine can cure certain allergies, skin problems like psoriasis, skin
allergies. Now day cow urine is cosmetic product. Cow urine improves the absorbency of linen fabric.
2.9 Method
Hundred percent bleached linen woven fabrics are used in this research work. Linen plain weave
woven fabric structures are used. According to the natural dye are used according to diseases and
most widely using herbal dye such as turmeric, neem, aloe vera, onion, beetroot and pomegranate.
All the process was carried out in a natural way without using any chemical, at any stage of
processing. Firstly, water and cow urine are boiled together at 80:20 ratio for 30 mint and then fabric
is boiled in it for 3 hours at 60 °C. It will improve the colour absorbency of the fabric. After boiling the
linen fabric are divided into 5 different pieces for different colour and different natural dyes. Secondly
boiled fabric is treated with edible gum. The edible gum used as a binding agent. After boiled fabric
are dipped in edible gum solutions. The water and edible solution are depending the weight of fabric.
Fabric is boiled solutions 60° temp. The fabric is dipped in solution and on padding machine.
Adequate liquor picks up is essential 80-90 depending on weight and construction of fabric and can
be achieved by a combination of absorbent fabric and long contact of the fabric with the liquor. Dyeing
of linen fabric was done with the natural coloring matter extracted from turmeric, neem, aloe Vera,
onion, beetroot and pomegranate with the liquid ratio 1:40 at 100°for 60 mints. The fabric sample was
immersed in the dyeing solution in a water bath at 30°c. After dyeing fabric is washing rose water
because natural dye is directly applied in fabric surface, they are various smells before washing rose
water, then finally fabric dry.
Fig. 8. (a) Turmeric (b) Beetroot
Novel Perspectives of Engineering Research Vol. 2
Study about Linen Fabric on the Surface Applied Natural Herbal Dyes to Improving the Colour Fastness and Absorbency
Characteristic Properties
64
Fig. 9. (a) Onion (b) Aloe Vera
Fig. 10. (a) Neem (b) pomegranate
2.9.1 Reason to choose natural dyes
Economic use of natural dye is limited. They are good examples to neem, aloe Vera, turmeric, onion
and pomegranate. The chemical dye are create sever environmental problem like water pollution, soil
pollution and toxic nature of dye causes death to the soil microorganism which in turn affect the
agricultural productivity. Synthetic dye are clothing come into prolonged contact with one’s skin, the
largest organ and so toxic chemical are after absorbed into the skin. The absorption has been shown
to cause significant health effects, such as an increase in tumours. Textile dye can also cause
allergies such as contact dermatitis and respiratory disease, allergies reaction in eyes, skin irritation
and irritations to mucous membrane. These diseases are most prevalent in the workers who are
dyeing the cloth as they are around the chemical all day. But natural dyes are found natural resource.
No chemicals are used in its dyeing process. Natural dye are not damage to the human body
protective the various skin infections.
2.9.2 Dyeing process
Dyeing of linen fabric was done with the natural coloring matter extracted from neem, aloe Vera,
turmeric, onion, beet root, pomegranate with the liquid ratio 1:40 at 100°c for 60 mint. Dyeing was
Novel Perspectives of Engineering Research Vol. 2
Study about Linen Fabric on the Surface Applied Natural Herbal Dyes to Improving the Colour Fastness and Absorbency
Characteristic Properties
65
performed in stainless steel vessel. The linen fabric sample was immersed in dying solution in a water
bath at 30°c and after dying fabric dipped rose water 10-20 mint.
2.9.3 Colour fastness to light test
The main purpose of colour fastness to light test determines the effect of natural sunlight and textile
colour. Model TF422 found laboratory apparatus according to ISO 105 B02. It is most common
international standards for colour fastness to light process. The sample is cut and should be exposed
½ covers and ½ exposed together with standard with blue wool reference (1-8). The blue scale
ranges from 1 to 8. 1 is very low colour fastness to light and 8 is very high colour fastness to light. The
test sample exposed to light for a certain time 24 hr, 36 hr; 48hr depend by customers demand.
Fig. 11. Light fastness tester
2.9.4 Washing fastness test
The dyed sample was washed in the launder - O- meter laboratory apparatus according to ISO 105
C06 A2S standard and model DZ-307. Detergent washing testing determines the resistance of textile
colour to domestic or commercial laundering procedures. The size of specimen was 40*100 mm; the
wash bath contained 4(g/l) ECE phosphate and 1gm/liter sodium perborate. The volume of the bath
was 150 ml, the temperature of the bath was 40°c and time of washing 40 mint. Ten stainless steel
balls are added into each bath to perform washing. After washing, the sample are squeezing with cold
water, then drying is done at a temperature in the air not exceeding 600C and measuring the staining
and colour change by grey scale.
2.9.5 Rubbing fastness test
Colour transfer testing measure the amount of colour transfer from rubbing. The crock meter is a
relatively simple rub tester commonly used to determine the amount of colour transferred from textile
material to other surface by rubbing. The dyed sample are rub fastness in table crock meter model
418 found laboratory apparatus according to EN ISO 150X12 standard. The size of the specimen was
20*100mm arm is weighted to provide a constant 9N load on the sample at all time and a mechanical
counter keeps track of completed 10 cycle. After completions of rubbing sample are dried then it is
compared AATCC grey scale (ISO 105-A03) for staining of color.
Novel Perspectives of Engineering Research Vol. 2
Study about Linen Fabric on the Surface Applied Natural Herbal Dyes to Improving the Colour Fastness and Absorbency
Characteristic Properties
66
Fig. 12. Colour fastness to washing tester
Fig. 13. Rubbing fastness tester
2.9.6 Colour measurements
The spectrophotometer is a colour measurement device used to capture and evaluate colour. The
most common spectrophotometer, this instrument measures light reflected at a fixed angle to the
sample usually 45° sample are measured using a spectrophotometer spectra flas 600 plus CT (data
colour). CIE l*b*a colour value and reflectance (R) of sample were measured using reflectance
spectrophotometer spectra. The CIE l*a*b colour value, color differences are calculated according to
equation first k/s value are calculated according to equation:
K/S =(1-R) /2R
Where R is the reflectance, K is absorbance and s is the scattering.
3. RESULTS AND DISCUSSION
The color fastness to light, washing and rubbing of dyed linen fabric sample are treated with edible
gum and cow urine. Edible gum used as in bending and thick agent, and cow urine is increases the
fabric absorbency. The treated sample colour fastness to light test result show (Table 2, Fig. 13). The
blue wool scale range is used from one to eight. One is very low colour fastness to light and eight is
Novel Perspectives of Engineering Research Vol. 2
Study about Linen Fabric on the Surface Applied Natural Herbal Dyes to Improving the Colour Fastness and Absorbency
Characteristic Properties
67
very high colour. Almost all the sample is show by grading. All the samples are showing fairly good (4)
and washing fastness grade show fairly good (3-4).
Table 2. Colour fastness to light test
Sr. No.
Dye name
Grade
1.
Turmeric
4
2.
Neem
3
3.
Aloe Vera
3
4.
Onion
4
5.
Beet root
4
6.
Pomegranate
4
Table 3. Colour fastness to washing fastness test
Sr. No.
Dye name
Grade
1.
Turmeric
4
2.
Neem
3
3.
Aloe Vera
3
4.
Onion
3
5.
Beet root
4
6.
Pomegranate
4
Table 4. Rubbing fastness
Sr. No.
Dye name
Wet rubbing fastness
1.
Turmeric
4
2.
Neem
2
3.
Aloe Vera
4
4.
Onion
4
5.
Beet root
4
6.
Pomegranate
4
Fig. 14. Natural dyes effect on colour fastness to light test
Novel Perspectives of Engineering Research Vol. 2
Study about Linen Fabric on the Surface Applied Natural Herbal Dyes to Improving the Colour Fastness and Absorbency
Characteristic Properties
68
Fig. 15. Natural dyes effect on colour fastness to washing fastness test
The colour change dry and wet rubbing for all samples is found to fair. But dry (2) is very good grade
and wet good fastness grade. The washing fastness grades range between excellent and good (3 to
4.5) for all the treated of sample. It is found that extracted and directly applied dye from the leves, aloe
Vera, turmeric, pomegranate, onion, beet root can be successfully used for dyeing of linen fabric.
Fairly, good and excellent washing, rubbing and fastness to light these data also helpful for textile
industries and another laboratory work.
Fig. 16. Natural dyes effect between on dry and wet rubbing fastness
4. CONCLUSIONS
This research main preference to give a new approach natural herbal dyes products will more
used in textile area. It will more help to reduce diseases problem skin.
Novel Perspectives of Engineering Research Vol. 2
Study about Linen Fabric on the Surface Applied Natural Herbal Dyes to Improving the Colour Fastness and Absorbency
Characteristic Properties
69
It is to improve the colour fastness and absorbency of the natural herbal dyes on linen fabric.
The natural dye is to make the process eco-friendly and hygienic than synthetic dyes.
We have found that herbal dyes appearances on linen fabric surface is very good.
It has observed that, a dry and wet rubbing fastness property has very good herbal dyes on
linen fabric surface.
This work can be helpful in the development of low cost and eco-friendly health care fabric to
the human.
COMPETING INTERESTS
Authors have declared that no competing interests exist.
REFERENCES
1. Ashis Kumar Samanta and Priti Agarwal. Application of natural dyes on textiles. Indian Journal
of Fibre Textile Research. 2009;34(1):384-399.
2. Al-Maiman SA, Ahnad D. Changes in physical and chemical properties during pomegranate
(Punica granatum L.) fruit maturation. Food Chemistry. 2002;76:437441.
3. Dhara Bajpai and Padma S V. Antifungal Textile Dyeing with Mahonianapaulensis DC leaves
extract based on its antifungal activity. Fibre Polymers. 2007;8(5):487-494.
4. Thilagavathi G, Krishna Bala S. Microencapsulation of herbal extracts for microbial resistance in
healthcare textile. Indian Journal Fibre Textile Research. 2007;32(1):351-354.
5. Siva R. Status of natural dyes and dye yielding plants in India. Current science. 2007;92(7):10-
15
6. Bell C, Hawthorne S. Ellagic acid, pomegranate and prostate cancer Amini review. Journal of
Pharmacy and Pharmacology. 2008;60:139144.
7. Laha A, Gupta D. Antibacterial activity of cotton fabric treated with QuercusInfetoria extract.
IJFTR. 2007;32:88-92.
8. Sateesh Belemkar, Ramachandran M. Recent trends in Indian textile industry- exploring novel
natural dye products and resources. International Journal on Textile Engineering and
Processes. 2015;1(3):33-41.
9. Phan TT, Hughes MA, Cherry GW. Enhanced proliferation of fibroblasts and endothelial cells
treated with an extract of the leaves of Chromolaenaodorata (Eupolin), an herbal remedy for
treating wounds. Plast Reconstr Surg., 1998; 101(1), 756-765.
10. Yagoub SO, Safi SEHA, Ahmed B, Magbol AZE. Antimicrobial activity of some medicinal plants
against some gram positive, gram negative and fungi. Phytotherapy Research. 2006;14(1):329-
332.
11. Ogueke CC, Ogbulie JN, Okoli IC, Anyanwu BN. Antibacterial activities and toxicological
potentials of crude ethanolic extracts of euphorbia hirta. Journal of American Science. 2007
3(2):11-16.
12. Rangari NT, Kalyankar TM, Mahajan AA, Lendhe PR and Puranik PK. Review article:
Ayurvastra Herbal couture technology in textile. International Journal of Research in Ayurveda
and Pharmacy. 2012;3(5):733-736.
13. Banupriya J, Maheshwari V. Comparison between herbal and conventional methods in
antimicrobial finishes. International Journal of Fiber and Textile Research. 2014;4(2):41-43.
14. Vijayalakshmi D, Ramachandran T. Isolates application of Multi-functional finishes on denim
garments. Daffodil International University Journal of Science and Technology. 2012;7(1):59-66.
15. Thilagavathi G, Rajendra Kumar K, Rajendran R. Development of antimicrobial textile finishes
from plant species. Indian Journal Fibre Textile Research. 2005;30(1):430-436.
16. Shivankar VS, Vyas SK. Extraction of natural dye pomegranate rind and its fastness properties,
Asian Dyer Journal. 2011;2(1):57-60.
17. Mathur A, Verma SK, Yousuf S, Singh SK, Prasad KS, Dua VK. Antimicrobial potential of roots
of ricinuscommunis against pathogenic microorganisms. International Journal of Pharma and
Bio Sciences. 2011;2(1):545-548.
18. Gupta A, Upadhyay NK Sawhney RC, Kumar RA. Poly-herbal formulation accelerates normal
and impaired diabetic wound healing. Wound Rep Regen. 2008;16(1):784-790.
Novel Perspectives of Engineering Research Vol. 2
Study about Linen Fabric on the Surface Applied Natural Herbal Dyes to Improving the Colour Fastness and Absorbency
Characteristic Properties
70
19. Abate MT, Zhou Y, Guan J, Chen G, Ferri A, Nierstrasz V. Colouration and bio-activation of
polyester fabric with curcumin in supercritical CO2: part IIeffect of dye concentration on the
colour and functional properties. The Journal of Supercritical Fluids, 2020;157, 104703.
20. Shariful Islam SM, Alam M, Akter S. Investigation of the color fastness properties of natural
dyes on cotton fabrics. Fibers and Textiles. 2020;27(1):1-6.
Novel Perspectives of Engineering Research Vol. 2
Study about Linen Fabric on the Surface Applied Natural Herbal Dyes to Improving the Colour Fastness and Absorbency
Characteristic Properties
71
Biography of author(s)
Dr. Ramratan Guru
Department of Handloom and Textile Technology, Indian Institute of Handloom Technology, Varanasi, Uttar Pradesh, India.
Research and Academic Experience: Research experience 6 Years and Teaching experience 3 Years
Research Area: Sportswear garment, Clothing comfort, Innovation fibre, Garment manufacturing process and Technical textile.
Number of Published papers: Research paper 55 and International and national conferences 40, Book Chapters 5.
Any other remarkable point(s): No of Patents 10, Two Journal Reviewer committee member
Rohit Kumar
Department of Textile Engineering, Giani Zail Singh Campus, College of Engineering and Technology, Maharaja Ranjit Singh
Punjab Technical University, Bathinda, Punjab, India.
Research and Academic Experience: Research experience 2 Years.
Research Area: Clothing Comfort, Sportswear Garment, Technical Textile.
Number of Published papers: Research paper 17 and International 02, Book Chapters 03.
Deepika Grewal
Department of Textile Engineering, Giani Zail Singh Campus, College of Engineering and Technology, Maharaja Ranjit Singh
Punjab Technical University, Bathinda, Punjab, India.
Research and Academic Experience: Research and Teaching experience 06 years
Research Area: Fashion & Apparel Engineering, Comfort clothing performance and Garment manufacturing.
Number of Published papers: Research papers 05 and international conferences 03, Book chapter 02.
_________________________________________________________________________________
© Copyright (2021): Author(s). The licensee is the publisher (B P International).
DISCLAIMER
This chapter is an extended version of the article published by the same author(s) in the following journal.
J Textile Eng Fashion Technol, 7(2):51‒56,2021.
... This phase saw advancements in dyeing techniques and sustainability improvements. Keywords such as "ultrasound", "colour fastness", and "bio-mordants" reflect efforts to enhance dye uniformity, colourfastness, and eco-friendliness through technologies like ultrasound-assisted dyeing [46][47][48], and plasma treatment [49]. Additionally, research into antibacterial properties [50][51][52] The development of herbal dyeing research follows a trajectory from [44] fundamental exploration to process optimization and functional innovation. ...
Article
Full-text available
With the strengthening of environmental awareness and the concept of health, using non-toxic and environmentally friendly herbs on textiles has become an important research issue. It has attracted increasing attention from the academic community. This study systematically reviewed and visualized 474 papers related to herbal dyeing of textiles collected from the Web of Science and Scopus databases using the bibliometric tool CiteSpace to analyze the relevant literature in the past 10 years (2015-2024). This study constructed a knowledge graph framework for herbal dyeing research, focusing on the analysis of keyword co-occurrence knowledge graph, keyword clustering, keyword prominence, Cited References and Authors Analysis, and national cooperation network. The results show that the evolution trend in the field of herbal dyeing of textiles can be summarized into four main aspects: raw materials and dyeing technology, sustainability and new mordants, functional applications and medical textiles and bioactivity. Herbal dyeing is not only an environmentally friendly alternative, but also a new textile technology that combines science and technology, functionality and medical value. This study provides data support and theoretical reference for subsequent research by sorting out the core research directions and development context in this field.
Article
Full-text available
The textiles exports consists of fabrics, ready-made garments, cotton textiles, textiles made from man-made fiber, wool and woolen goods, silk, handicrafts etc. Out of which man-made textiles and silk are showing the highest growth rate. Textiles, namely protein fibers, in continental part of central Europe have been traditionally dyed by natural dyes. Increasing the contribution of small and medium enterprises of textile, chemical & Pharmaceutical in total exports of India is vital to India's future economic growth. In this century, a global awareness is already in place favoring the use of natural resources for protecting the environment and earth from pollution and ecological imbalances. The present scenario is focused more towards the utilization of the vast diversity of natural resources of color pigments for their use in food materials, pharmaceuticals and textiles, in place of their synthetic counterparts. This trend is aimed at safeguarding human health as well as protecting and prolonging life on earth. Detailed scientific studies with natural dyes have established that in most cases their properties are comparable to those of synthetic dyes. Therefore, if natural dyes have to be commercialized, they need to conform to the same stringent standards of performance that are applied to synthetic dyes. It thus follows that much more research and developmental effort needs to go in this area. The traditional practices may have to be substituted by modern, more scientific practices in order to overcome some of the so-called disadvantages of this dye. In this article, we are illustrating various natural dye materials available for textile industries. Good fastness to processes of textile washing and care implicate to the stability of formed metal complexes.
Article
Full-text available
This paper reports the studies available on the characterization and chemical/biochemical analysis of natural dyes; extraction of colorants from different natural sources; effects of different mordants and mordanting methods; conventional and non-conventional methods of natural dyeing; physico-chemical studies on dyeing process variables and dyeing kinetics; development of newer shades and analysis of colour parameters for textiles dyed with natural dyes; and test of compatibility for application of binary mixture of natural dyes. The chemical modification of textile substrate for improving dyeability, attempts for improvement in overall colour fastness properties and survey of some traditional processes of natural dyeing in different parts of India have also been discussed.
Article
Full-text available
Ayurvastra is a branch of India's ancient form of medicine, Ayurveda. Ayurvastra cloth is used by Ayurveda health clinics in the treatment of a broad range of diseases such as diabetes, skin infections, eczema, psoriasis, hypertension, high blood pressure, asthma, arthritis, rheumatism, cardiac problems and as general health products. The Ayurvastra reinforces the importance of sustaining the planet for future generations and for the well being of the current generation using age old practices, which do not add up to global warming but helps in minimizing it. It is expected that unique technology and thereby opening up a new area of entrepreneurship, job orientation and economical stability will be welcomed by the society as a whole.
Article
This study presents a sustainable approach to the fabrication of multifunctional polyester fabric with bioactive natural colourant curcumin through a water free supercritical CO2 dyeing technique. A simple dyeing process was carried out in which curcumin powder dye was directly applied to polyester fabric in scCO2 medium without involving mordant chemicals and fabric pre-treatment procedures. The colour, bioactivity, and durability properties of the dyed samples were characterized. Results showed that the colour strength increases when the dye concentration increases and higher colour strength (K/S value above 17) could be achieved using low curcumin concentration (ca. 0.75 % owf). Moreover, the dyed fabrics displayed desirable antimicrobial, antioxidant, and UV-protection activities with acceptable colour fastness to washing and rubbing. This study opens a new view towards the sustainable fabrication of coloured and bioactive polyester fabric using curcumin via a resource-efficient and eco-friendly scCO2 dyeing technique.
Article
Textiles have always played a central role in the evolution of human culture by being at the forefront of both technological and artistic developments. An eco friendly natural antibacterial finish has been prepared from the plant extract for the textile application. Herbal extracts have been applied to cotton and organic fabric by the method of pad, dry cure method. This paper consists of a detailed discussion of the herbal finish then antimicrobial effect on cotton and organic cotton fabrics .The antimicrobial property of fabrics is considered to be more important and inevitable finish for garments, which are in direct contact with human body. The fabrics which are in contact with the human body provide an ideal environment for the microbial growth. In this paper I have compared the effect of Antimicrobial finish by conventional and herbal based methods and the best result among the two processes were analyzed and discussed.
Article
Cotton fabric has been treated with the tannin-rich extract of Quercus infectoria (QI) plant in combination with alum, copper and ferrous mordants and then tested for antimicrobial activity against Gram- positive and Gram-negative bacteria. QI extract shows good activity at 12% concentration (owf), inhibiting the microbial growth by 45-60%. The microbial growth inhibition increases to 70-90% when alum and copper sulphate are used for mordanting. However, the antimicrobial activity is completely lost when ferrous sulphate is used. The activity of samples treated with QI alone is lost completely after 5 launderings while the mordanted samples retain nearly 100% activity up to 5 launderings, indicating that the mordants help to make the effect durable. The study also shows that the cotton textiles can be successfully treated with QI to produce bioactive textiles from natural ecofriendly materials. QI is a viable alternative to synthetic antimicrobial agents for use in hospital textiles and an effective antiodour agent for use in sports and household textiles.
Article
Antimicrobial finish has been imparted to the cotton fabric using extracts of neem and Mexican daisy by direct application and by microencapsulation using pad-dry-cure method. To enhance the durability of antimicrobial finish to number of washes, the microencapsulation of herbal extracts has been done using phase separation/coacervation. Microcapsules are produced using herbal extracts as core and acacia as wall material. Structure of microcapsules has been evaluated using light microscopy with image analysis technique, the presence of microcapsules by scanning electron microscopy, the antimicrobial efficacy by quantitative method in terms of bacterial reduction, and the wash durability of antimicrobial activity by AATCC 124. It is observed that the microencapsulated herbal extracts possess a very good resistance for microbes even after 15 washes.
Article
The main aim of this research is to apply the functional finishes to denim garments to enhance the value of the garment. The fabric selected for the research is 100% cotton with the construction of 2/1 Right Hand Twill. The selected fabric was made into garments (A-line frock) and subjected to de-sizing and enzyme washing and then the garments were treated with two different synthetic scents sweet citrus and rose oils to induce fragrance. The garments were also tested for the efficacy of anti-microbial, antifungal, UV protection, stain repellency and mosquito repellency finishes. The results have proven very good sense of functional finishes on to the garments in conjunction with a sweet fragrance. Two different methods – dip dry and micro encapsulation methods were chosen for the study and the fastness property of the finishes were compared. The treated garments were evaluated using AATCC standards. Keywords: fragrance finish; anti-microbial finish; anti-fungal finish; A-line frock; enzyme washing. DOI: http://dx.doi.org/10.3329/diujst.v7i1.9649 Daffodil International University Journal of Science and Technology Vol.7(1) 2012 59-66
Article
The petroleum ether , methanol and aqueous extracts of the seeds of Helianthus annuus (Asteraceae) , leaves of Azadirachta indica (Meliaceae), bulbs of Allium cepa (liliaceae) and that of the seeds of Portulaca oleracea (Portulacaceae) were screened for their anti-microbial activity using the Cup plate agar diffusion method . They were tested against six bacteria; two Gram-positive bacteria (Bacillus subtilis and Staphylococcus