DYEING

• Dyeing is the process of importing color to a textile material in loose fibre, yarn, cloth or garment form by treatment with a dye and necessary chemicals.

• Dyeing can be done by three major methods. i.e

• Batch application• Semi-continous method, ex are CPB.• Continous method, ex are PDPS,PDS,PS.

CLASSIFICATION OF DYE CLASSES:

Substrate Dyes

Cotton Reactive dyesVat dyesDirect dyes

Polyester Disperse dyes

Wool ,Nylon Acid dyesMetal complex dyes

Acrylic Basic dyes

DyStar DYES Dyes For Cellulosics

DYE RANGES

REACTIVE

Levafix CA

Levafix

Remazol

Remazol RGB

Remazol RR

Procian HE

Procian H-EXL

Procian XL+

DYE RANGES

VATIndantherene Mikethren Caledon SF

Indigo for denim

Direct Sirius

Sirius L Sirius KFC

Sirius Black

Dyes For Polyester

DISPERSE DYES

RANGES Dianix E Plus

Dianix K

Dianix CC

Dianix Plus

Dianix UN-SE

Dianix S

Dianix XF/SF

Dianix Luminous

Dianix AM

Dyes For Wool

DYES RANGES

LEVELLING ACID DYE Telon

HALF MILLING & MILLING

ACID DYE

Telon W

Telon A

Telon S-WP

Telon M

1:2 MCD

Isolan

Isloan S

Isolan 2S

REACTIVE Realan

Realan EHF

Dyes For Polyamide

DYES RANGES

LEVELLING ACID DYES

Telon

HALF MILLING & MILLING ACID DYES

Telon A

Telon M

1:2 MCD

Isolan

Isolan (NHF-S)

Isolan S

Isolan 2S

DISULpHONIC ACID DYES

Telon CD

Dyes For Acrylic

DYES RANGES

CATIONIC

DYES

Astrazon

Astrazon Liquid

Astrazon Micro

Astrazon A

AUXILIARIESDispersing and sequestering agents

•Dispersing agent with levelling properties.

•Non ionic , polyglycol ether based.

•Prevents filtration of dyes.

•Stable to acids,alkalis,salt and hard water

Sera Gal P-LP

•Sequestering agent with dispersing ,oil suspending and buffering ability.

•Complexes heavy metal ions in a wide pH range.

•Can be used in vat, disperse and acid dyeing bath.

Sera Quest C-PX

•Sequestering agent with dispersing ,oil suspending and buffering ability.

•Complexes heavy metal ions in a wide pH range.

•Can be used in acid and neutral liqours.

Sera Quest MPP

auxiliaries

•Protective colloid and sequestering agent. polymeric carboxylic acid,anionic.

•Prevents Ca & Mg ions from complexing with anionic dyes.

Sera Sperse C-SN

•Low foaming dispersing agent and excellent protective colloid.

•Suitable in HT dyeing

•Prevents dye agglomeration while cooling.

Sera Sperse M-IS

•Dispersing sgent.

•Alkyl polyglycol ether,nonionic.

•Very good dispersing action with cationic dyes.

•Stabilizes dipersion mixtures.

Sera Sperse M-IW

Levelling agents

•Special product for dyeing of greige cotton.

•Anionic compound.

•Simultaneous sequestering,levelling,dispersing and crease preventing property.

Sera gal C-RFX

•Efficient levelling agent for vat dyeing.

•Compatible with anionic and nonionic auxiliaries.

•Stable to alkalis and electrolyte at temp upto 115°C.

Sera gal C-VP

•Antimigration agent,polacrylate.

•Suitable for dyeing with vat and disperse dyeing.

•Retards migration of dyestuff during continous dyeing.

Sera gal M-IP

Levelling agents

•Levelling agent for dyeing polyamide.

•Retards the uptake of dyes by polyamide fibers.

Sera Gal N-LP

•Levelling agent for dyeing wool.

•Compatible with acid,metal complex and chrome dyes.

•Accelerates wetting out of wool.

Sera Gal W-UL

•Dyeing accelerator for PET fiber.

•Contains dispersants and levelling agent.

•Used mainly in dyeing of polyester/wool blend.

Sera Gal P-EW

Process control chemicals

•Highly effective buffer for alkaline dyeing

•Provides a soft handle and reduces abrasive damage compared to the acid dyeing process.

Diaserver JpH 150

•Mild oxidising agent,anionic.

•Oxidising agent for vat dyeing in continous processes.

•Protect dyeing against reduction when alkaline printing pastes are used.

Sera Con M-LU

•Acid buffer to set pH at 3-5

•Complexing and dispersing properties in pretreatment and washing processes.

Sera Con M-TC

Reserving and aftertreatment agents

•Improves wash fastness of cellulosics fibers dyed and printed with direct dyes.

•Formaldehyde free cationic fixing agent.

Sera fast C-NC

•Highly effective aftersoaping formulation for reactive dyestuffs.

•Prevents re-exhaustion of hydrolysed and unfixed dyestuff onto the fiber.

•Reduces total water hardness.

Sera Fast C-RD

•Dispersing and leveling agent .

•Act as leveling and penetrating agent for the dyeing of cellulosic fibers with direct dystuffs.

Sera Sperse M-DEW

Wetting agents and detergents

•Low foaming universal detergent.

•Applicable for pretreatment of all types of fibers

•Have excellent cleaning effect.

Sera Wash C-NEC

•Wetting agent for pretreatment and dyeing.

•Stable in alkaline solution.

Sera Wet C-AS

Deaerators/defoamers

•Deareator with foam reducing effect.

•Highly stable to all chemicals used in finishing.

Sera Air M-TOP

•Highly effective defoamer for pretreatment,dyeing,printing and finishing.

•Silicon free, nonionic in nature.

Sera Foam M-HTS

DYEING CONCEPTS

For Reactive Dyes1) Eco wash concept. (using Sera Fast CRD)2) Combined Scouring and dyeing concept. (using Sera Gal CRFX)3) Levafix CA dyeing concept.4) Remazol RGB/ Ultra RGB dyeing concept.5) Remazol RR dyeing concept.

For PET Dyeing1) Dianix S2) Dianix Microliquids.3) U.V Absorber 4) Dianix CC5) Dianix PLUS6) Dianix Scour PLUS7) Alkaline PLUS8) Controlled coloration with OPTIDYE P.

• Eco Wash Concept:

• Chemical Used – Sera Wash CRD.• Washing at 60ºC for upto 3% shades.• Highly effective After-soaping formulation for

reactive dyestuff.• Prevents Re-Exhaustion of unfixed dyestuff.

• Combined Scouring & Dyeing Concept:

• Chemical Used – SeraGal CRFX.• Applicable for Dark/Black shades.

Reactive Dyeing Concepts

Remazol RGB/Ultra RGB• Excellent performance at lowest process cost.• Complete range of dyes for economical shades on cotton knit,

fabric & yarn.• Very good build up in deep shades & High reproducibility.

• Meets requirements of major ecology standards.

• Suitable for -– Exhaust(50°C & 60°C)– Cold-pad-batch– Pad-dry-pad-steam– Pad-dry-steam– E-control– Printing

REMAZOL RR

• Maximum reproducibility in critical trichromatic shades.

• Very reliable application in exhaust dyeing

• Good coverage & levelling properties

• Good build-up

• Easy to wash off

• Meets the requirements of major ecology standards

Levafix CA• Flexible dyes can be combined with many types of reactive

dyes • Universal dyes, All-rounder’s for use in

– Exhaust(50°c,60°c or 80°c)– Cold pad-batch – Continuous processes

• Good reproducibility & reliable application • Excellent wash-off properties • Good perspiration wet light fastness; good oxidative wash

fastness (multiple wash cycles) • Low staining of synthetic fibres • High fixation yield; AOX-free • Can be combined with Remazol & Levafix dyes• Meets requirements of major ecology standards

Dianix S

• Economical range of High Energy powder & liquid dyestuff with high fastness to contact heat

• Wide range of colour gamut for exhaust, continuous & printing.

• Excellent build-up and economical dye recipes • Good all-round colour fastness.

Polyester Dyeing Concept

Dianix micro-liquids

A) Printing application:• High sublimation fastness• Good wash off properties during reduction clearing.• Suitable for HT and High pressure fixation.B) Continous dyeing:• Suitable for :• High end garments• Military articles• Workwear.

U.V absorber

Sera fast P-APS:• Highly cost effective UV absorber for a wide

range of dyes.• Improves light fastness of dyeing on PET.• No negative impact on dispersion stability.• Stable under acid and alkaline dyeing

conditions.

• Compatible range of economical, medium-energy dyes for rapid, reliable exhaust and continuous dyeing of polyester and its blends with other fibres

• Excellent build-up and economical dye recipes • High productivity in exhaust dyeing through

optimized rapid dyeing • Good all-round colour fastness.• Compatible rates of adsorbtion• Compatible one-tone build up.• Compatible & rapid diffusion.• Compatible stability to pH variation.

Dianix CC

Dianix scour plus

• Scouring, Dyeing and Reduction clearing in one bath.

• Process benefits are:• Time and water saver.• High productivity • Lower effluent load.• Sera auxiliaries recommended are:• Sera Gal C-NEC: scouring agent.• Sera Gal P-LP: leveling agent with dispersing

properties.• Sera Con P-ACT: RC in acidic medium.

Alkaline plus

• Diaserver JPH 150 is used.• Accurate control on dyebath pH over the

range of 8.7-9.5.• Effective saponification of of oligomers by

alkali in the product.• No effect on color yeild.• Produces softer handle and reduced abrasion

damage as compared to conventional one.

Controlled coloration with optidye P

• Optidye P optimises processes using:• Dyeing rate of fiber ( V value)• Machine flow rates and cycles times• Auxiliaries used.

• It also determines process parameters:• Begin and End of critical temp range.• Heating rate within/outside the critical range• Time at max temperature.