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Messages - nawshin farzana

Pages: 1 ... 10 11 [12]
166
Textile science, events, trade and issues / Re: About lurex yarn
« on: October 29, 2011, 01:01:50 PM »
nice post!

167
MULTIFUNCTIONAL BLEACHING AGENT (MBA)
Multifunctional bleaching agent can effectively replace most of agents used in the traditional sodium hydroxide bleaching process, suitable for cotton and its blends. It can be used in various processes, such as vat dyeing, jet overflow dyeing and pad dyeing and so on.

◆ Applications
1. Discontinuous process : suitable for yarns, knit fabrics and towels

Reference Recipe :

H2O2 (30%)      4-5ml/L
MBA                  2-3g/L
M:L                    1:10

Process Sequence:
prepare chemicals→cloth entering→90~95℃×30mins→warm washing→cold washing→cloth discharging

2. Continuous process: suitable for cotton woven fabrics, knit fabrics and towels

Reference Recipe:

H2O2 (100%)    4-12g/L
MBA                25-40g/L


Competitive Advantages of the product
1.Suitable for all kinds of greige fabrics and water.
2.Excellent whiteness and capillary effect, no cotton seed hull residue.
3.Low fabric damage, high quality and efficiency.
4.Saving water, electricity and gas, low COD & TDS value
5.Short processing time and high production efficiency


168
SALT FREE REACTIVE DYEING OF COTTON -a newer technique of cotton dyeing without salt usage

Reactive dyes are very popular for cellulosic garments as they are environmentally safe and having good overall fastness properties. But application of these dyes requires a very high concentration of salt. The salt released from garment dyeing increases salinity in drain water stream which has a negative impact on environmental ecology. The present work aims to eliminate the usage of salt during dyeing of cotton goods with reactive dyes.

The methodology adopted here, for the elimination of salt in cotton dyeing, was based on the principle of cationisation (to develop a positive charge) of cotton. The same was achieved by subjecting the caustic pretreated cotton fabric samples to a treatment of 1, 2 dichloroethane followed by methylamine to introduce amino groups in the cellulose structure. The treated cotton when dyed from slightly acidic bath generates positive sites due to protonation in the amino group. The reactive dyes being anionic (negatively charged) in solution get attracted to the positive charges on the fibre which eliminates the salt requirements for satisfactory dye exhaustion.

A pretreatment to cotton which could eliminate the usage of salt in its dyeing with reactive dyes is revealed.
Both garment dyeing units and fabric/yarn finishing industries would thus be helpful.


169
Textile science, events, trade and issues / The Textile Museum
« on: October 26, 2011, 02:06:54 PM »
The Textile Museum
The Textile Museum expands public knowledge and appreciation – locally, nationally and internationally – of the artistic merits and cultural importance of the world’s textiles.
In 1925 George Hewitt Myers founded The Textile Museum with a collection of 275 rugs and 60 related textiles. Myers collected actively for the Museum until his death in 1957, at which time the collection had grown to encompass the textile arts of Africa, Asia and Latin America. In Myers' time, the Museum was open by appointment only and received several hundred visitors annually. Today, The Textile Museum is one of the world's foremost specialized art museums and receives 25,000 to 35,000 visitors each year from around the world.
The Textile Museum is housed in two historic buildings in the Kalorama neighborhood of Washington, D.C. Visitors enter the Museum through the former home of the Museum's founding family which was designed by John Russell Pope in 1913.
The Museum's educational programs encourage visitors to explore the variety and wonder of the textile arts, and to learn more about how textiles are made and why they are important. Exhibition-related programming is designed to enhance and expand upon the exhibition themes. All exhibitions feature school tours, and programs are offered for educators throughout the year.
The Textile Museum presents a variety of lectures, workshops, seminars and demonstrations throughout the year.
The Textile Museum is a wonderful place to volunteer and gain skills in the museum field and welcomes applications for internship and volunteer programs year-round.
Source: internet

170
Open Source Forum / Re: Interior Designing as a Profession
« on: October 26, 2011, 01:43:15 PM »
Very appreciable!

171
Textile science, events, trade and issues / Re: Textile Trade
« on: October 26, 2011, 01:30:29 PM »
plz write something more about Textile trade

172
plz provide us with more information about this.

173
Science Discussion Forum / Re: NASA Finds New Life
« on: October 24, 2011, 11:35:26 AM »
very very valuable information indeed

174
Science Discussion Forum / Re: Some Scientific Facts
« on: October 24, 2011, 11:26:45 AM »
We want to know more about this kind of valuable information

175
Science Discussion Forum / Re: Electricity from the nose?
« on: October 24, 2011, 11:23:14 AM »
very interesting!

176
valuable information about technical textiles

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