October 19, 2009

Package Dyeing of Unmercerised Cotton yarn with High Exhaust Reactive Dyes

›
· Start Dyeing @50°C; ensure the starting bath pH be 6; adjust with Acetic Acid if necessary. · ...
7 comments:
May 26, 2009

Yarn Conditioning Process

›
Textile fibers are subjected to various physical operations to make in to a yarn. For example cotton fiber passes through opening, carding, ...
2 comments:
March 02, 2009

Lycra Yarn – Pretreatment in Package dyeing machine:

›
Machine Circulation Cycle Settings: Cheese winding: on plastic cones or cheeses. Cheese Weight : Not more than 500 grams/cheese DEMINERALI...

What is Lycra? Lycra yarn and its properties.

›
LYCRA® is a man-made elastic fibre invented and produced only by DuPont®.It’s remarkable properties of stretch and recovery enhance all fabr...
1 comment:
January 23, 2009

Package Dyeing (HT HP) - Cheese Yarn Dyeing-II

›
Reactive Dyeing of cotton yarn in cheese form: Whether it is Vinylsulphone or Bifunctional dyestuff, you may follow the following dyeing cyc...
7 comments:
October 20, 2008

Nylon yarn filament dyeing - tips

›
Nylon Yarn Dyeing: • Like polyester fiber, (polyamide) nylon also requires to be heat set prior to any wet processing. Nylon can be best ...
4 comments:
May 06, 2008

Dyeing Equilibrium - A Practical Dyer's Guide to Reactive Dyeing of Cotton - Part-4

›
In the previous post we have discussed the chemical aspects only and the processes of reaction with cellulose and the water have been treate...
April 27, 2008

Reaction Rates of Reactive Dyes: A Practical Dyers's Guide to Reactive Dyeing Cotton - Part-3

›
The rate of reaction with cellulose may be written: Rate = Kc (D.Cl)f (Cell O) The rate constants of reactive dye with cellulose may no...
April 24, 2008

Fibre-Reactive Dyes - A Practical dyer's Guide to reactive Dyeing - Part-2

›
What are Fibre-Reactive Dyes? Definition A fibre-reactive dye will form a covalent bond with the appropriate textile functionality. This is ...
April 20, 2008

A Practical Dyer's Guide to Reactive Dyeing of Cotton - Part-1

›
Introduction: Reactive dyes are probably the most popular class of dyes to produce 'fast dyestings' on piece goods. These were first...
2 comments:

Color Fastness - What does it mean?

›
In order to clarify what fastness means, we shall examine various fastness properties that a thread or yarn may be required to have. We shal...
1 comment:
April 18, 2008

Package Dyeing (HT HP) - Cheese Yarn Dyeing-I

›
Machinery details: In its simplest form a package-dyeing machine is a vessel capable of containing packages of textile material through whic...
April 12, 2008

One bath dyeing of cellulosic blends

›
A number of one bath methods have been developed for cellulosic blend dyeing. Disperse/direct dyeing of cotton/nylon or polyester is well k...

Azoic Dyeing of cotton yarn

›
Naphthol dyestuff have traditionally been applied by the multi stage route of impregnation, hydro extraction/rinsing and development. German...
April 03, 2008

Liquid Ammonia Treatment of textile yarn

›
Liquid ammonia can be regarded simply as a new medium for tailoring the dimensions and properties of cellulosic materials to shrink, swell,...
1 comment: