Ciba Specialty Chemicals

® ®
Ciba INVATEX MD
cracking agent

Pretreatment for Textiles Value beyond chemistry

Technical Data Sheet Ciba® INVATEX® MD cracking agent

Uses
New generation cracking agent, combination of high performing surfactants and special
dispersing/complexing components

Extremely versatile, low foaming and phosphorus free agent for cracking of foreign substances
and impurities on cellulosic fibres and their blends with synthetics in continuous and semi-
continuous applications

- Enzymatic Cracking
- Surfactant Cracking
- Pad Steam Alkaline Cracking
- Pad Steam Peroxide Bleach
- Pad Steam MEGA Bleach
- Pad Batch Cold Peroxide Bleach
- Pad Batch Cold Oxidative Cracking
- Visco-Combi-Batch process

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Technical Data Sheet Ciba® INVATEX® MD cracking agent

Characteristics Benefits

- Synergetic combination product of - Advantageous in storekeeping. Simplifying

surfactants and dispersing/complexing of recipe and handling
components
® ®
- Ciba INVATEX MD has a very good - Enables quick and uniform wetting
wetting action in acid, neutral and particularly in dry on wet processes in case
alkaline liquors of grey fabrics. Ensures a high liquor pick-
up

- Strong detergency - Removes oily and greasy impurities as well

as size and soil particles, even in grossly
contaminated wash baths.

- Dispersing and complexing action - Boosting effect on the cleaning

together with Ca-crystallization-inhibition performance of the product.
properties (Threshold effect)
- Prevents deposits on goods and machinery
parts. Keeps soil in suspension and also
active during the washing-off process,
even in very low concentrations. Removal
of earth-alkaline and heavy metal ions

- Low foaming, contains no anti-foam - High stability of product and application

baths. No danger of deposits in
impregnating compartments, in
continuous equipment and in feed liquors.
Ensures a low foam behavior throughout
the whole processing

- Compatible with desizing enzymes, - Extremely versatile application, simplifies

suitable for pad steam peroxide bleaches, overall processes and reduces costs and
high resistance for alkali, oxidants and efforts in storekeeping
acids
- Environmentally friendly formulation,
- Liquid, free of phosphorus and APEO pumpable in all cases

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Technical Data Sheet Ciba® INVATEX® MD cracking agent

Properties

Chemical constitution: Preparation based on synergetic surfactants and

complexing/dispersing agents, free of APEO

Ionic character: Anionic/non-ionic

pH undiluted: About 4

Specific gravity at 20 °C: About 1

Physical form: Clear liquid

Storage stability: INVATEX MD is stable for 1 year when properly

stored in closed containers at 20 C. The product
is sensitive to temperatures below 0 C and
above 40 C.

Stability to alkali: 90 g/l NaOH 100 %

Stability to acids: 20 ml/l H 2SO4 conc.

® ®
20 ml/l Ciba INVATEX SA

Stability to oxidants: Very good

Viscosity (Rheomat 180, < 100 mPas

21°C):

Ecology/toxicology: The usual hygiene and safety rules for handling

chemicals should be observed in storage,
handling and use. The product must not be
swallowed.

For further information on INVATEX MD -

especially particulars regarding safety when
handling, toxicological and ecological data -
please consult our product specific safety data
sheet.

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Technical Data Sheet Ciba® INVATEX® MD cracking agent

Application
Suggested recipes

Enzymatic Cracking for starch containing textile goods

Pad Batch Enzymatic Cracking (Pad Batch EC)

2-6 ml/l Ciba® TINOZYM® AL or ADC

3-6 ml/l Ciba® INVATEX ® MD

Liquor pick-up: as close as possible to 100 %

Impregnation cold - 60 °C for TINOZYM AL
temperature: cold - 90 °C for TINOZYM ADC
Batching time: 4 - 24 h
Hot wash off

Pad Steam Enzymatic Cracking (Pad Steam EC)

2-6 ml/kg Ciba® TINOZYM® ADC

3-6 ml/kg Ciba® INVATEX ® MD

Impregnation cold - 90 °C
Steaming: 1 - 30 min at 100 °C under saturated steam conditions
Hot wash off

Continuous Ultra Rapid Enzymatic Cracking

4 - 10 ml/l Ciba® TINOZYM® ADC

3-8 ml/l Ciba® INVATEX ® MD

30 - 60 s at 80 - 90 °C
Hot wash off, possibly adding 10 - 20 g/l NaOH 100 %

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Technical Data Sheet Ciba® INVATEX® MD cracking agent

Surfactant Cracking (SC)

on cellulosic fibers, synthetics and their blends, if size does not contain any starch

3- 8 ml/l Ciba® INVATEX ® MD

x g/l soda ash or caustic soda
0 - 0.3 g/l Ciba® FUMEXOL® DF

High recipe concentrations for applications in short-time washing machines and in cold pad
batch.
Low recipe concentrations for drum washing machines with or without relaxing/dwelling
compartment and for discontinuous applications.

Temperature: 60 - 90 °C for PA fibers

80 - 90 °C for PES fibers
85 - 98 °C for CO fibers
pH: 6 - 8.0 for PVA sizes
7.5 - 9.5 for PES sizes
± 12 for most acrylate size

Pad Steam Alkaline Cracking

on cellulosic fibers and their blends with synthetics

Pad Steam RCS (Reductive Cracking Short Time)

Short-cycle roller steamer

40 - 60 g/kg NaOH 100 %

5 - 10 ml/kg Ciba® INVATEX ® MD

Bath temperature: 20 - 80 °C
Steaming: 1 - 5 min at 100 °C, saturated steam

Pad Steam RCM (Reductive Cracking Medium Time)

Combination steamer, roller bed steamer, conveyor belt steamer

30 - 50 g/kg NaOH 100 %

4-8 ml/kg Ciba® INVATEX ® MD

Bath temperature: 20 - 80 °C
Steaming: 6 - 24 min at 100 °C saturated steam

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Technical Data Sheet Ciba® INVATEX® MD cracking agent

Pad Steam RCL (Reductive Cracking Long Time)

J-Box, L-Box, Pad Roll

25 - 40 g/kg NaOH 100 %

3-6 ml/kg Ciba® INVATEX ® MD
4-8 ml/kg Ciba® INVATEX ® KR h.c.

Bath temperature: 20 - 80 °C
Steaming: 25 - 180 min at 100 °C under saturated steam conditions

Peroxide Bleaching on cellulosic fibers and their blends with synthetics

Pad Steam MEGA Bleach on desized material

10 - 14 ml/kg Ciba® TINOCLARITE® CBB

15 - 25 g/kg NaOH 100 %
30 - 60 ml/kg hydrogen peroxide 35 %
3-6 ml/kg Ciba® INVATEX ® MD

Cold impregnation High-Add-On applicator or

with conventional saturator
Steaming for 20 - 45 min at 100 °C under saturated steam conditions
Hot wash off

The lower product amounts are valid for PES/CO blends.

A protective agent, e. g. PROVENTIN 7 (Degussa), is recommended for PA/CO.

Silicate-free Pad Steam Peroxide Bleach on desized and alkaline scoured material

6 - 10 ml/kg Ciba® TINOCLARITE® CBB

6 - 12 g/kg NaOH 100 %
15 - 50 ml/kg hydrogen peroxide 35 %
2-4 ml/kg Ciba® INVATEX ® MD

Cold impregnation
Steaming time: 6 - 30 min
Temperature: 100 °C under saturated steam conditions
Washing- off: as hot as possible

The lower product amounts are valid for PES/CO blends.

A protective agent, e. g. PROVENTIN 7 (Degussa), is recommended for PA/CO.

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Technical Data Sheet Ciba® INVATEX® MD cracking agent

Pad Steam Peroxide Bleach with silicate on desized and alkaline scoured material

4-6 ml/kg Ciba® TINOCLARITE® BS

3-6 g/kg NaOH 100 %
3 - 12 ml/kg sodium silicate 38°Bé
15 - 30 ml/kg hydrogen peroxide 35 %
2-4 ml/kg Ciba® INVATEX ® MD

Cold impregnation
Steaming time: 6 - 45 min
Temperature: 100 °C, saturated steam
Washing off: as hot as possible

The lower product amounts are valid for PES/CO blends.

A protective agent, e. g. PROVENTIN 7 (Degussa), is recommended for PA/CO.

Pad Steam Peroxide Bleach long time with silicate, Pad-roll and J-box rope bleach

3-5 ml/kg Ciba® TINOCLARITE® BS

2-6 g/kg NaOH 100 %
5 - 12 ml/kg sodium silicate 38°Bé
10 - 20 ml/kg hydrogen peroxide 35 %
2-4 ml/kg Ciba® INVATEX ® MD

Cold impregnation
Steaming time: 1-3h
Temperature: 100 °C under saturated steam conditions
Washing- off: as hot as possible

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Technical Data Sheet Ciba® INVATEX® MD cracking agent

Silicate free Pad Batch Cold Peroxide Bleach (Pad Batch CPB)
Cotton, linen, other bast fibers and their blends with synthetic fibers

6 - 10 ml/kg Ciba® TINOCLARITE® CBB

25 - 35 g/kg NaOH 100 %
6 - 10 ml/kg Ciba® INVATEX ® MD
40 - 60 ml/kg hydrogen peroxide 35 %
0-5 g/kg persulphate (preferably sodium persulphate)

Bath temperature: 20 - 35 °C
Liquor pick-up: 90 - 100 %
Batching time: 16 - 24 h

Aftertreatment, if no Pad Steam or Underliquor treatment follows:

Continuous boiling in washing machines or immersion cloth accumulators

The following treatment has proved effective for high, uniform absorbency and improved
removal of sizes:

Sharpen the first few baths of the washing machine or immersion cloth accumulator with:

6 - 10 g/l NaOH 100 %

3-5 ml/l Ciba® INVATEX ® MD

Reaction time: open-width wasching machine: 30 - 60 s

immersion cloth accumulator: about 5 min
Temperature: 90 - 95 °C
Water flow: separate low water throughput of 1 - 3 l water/kg goods

Separate higher water flow for hot washing off with water only on the remaining washing
compartments
With this procedure, there is no need for additional continuous chemical feed.

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Technical Data Sheet Ciba® INVATEX® MD cracking agent

Silicate containing Pad Batch Cold Peroxide Bleach (Pad Batch CPB)
Cotton, linen, other bast fibers and their blends with synthetic fibers

4-6 ml/kg Ciba® TINOCLARITE® BS

8 - 15 g/kg NaOH 100 %
6 - 10 ml/kg Ciba® INVATEX ® MD
6 - 12 ml/kg sodium silicate 38°Bé (72° Tw)
40 - 60 ml/kg hydrogen peroxide 35 %
0-5 g/kg persulphate (preferably sodium
persulphate)

Bath temperature: 20 - 35 °C
Liquor pick-up: 90 - 100 %
Batching time: 16 - 24 h
Hot washing off

A subsequent Pad Steam or Underliquor treatment is recommended for woven goods.

Pad Batch Cold Oxidative Cracking (Pad Batch COC) on cellulosic fibers and their blends with
synthetics

4-6 ml/kg Ciba® TINOCLARITE® CBB

30 - 40 g/kg NaOH 100 %
6 - 10 ml/kg Ciba® INVATEX ® MD
20 - 40 ml/kg hydrogen peroxide 35 %
3-6 g/kg persulphate (preferably sodium
persulphate)

Bath temperature: 20 - 35 °C
Liquor pick-up: 90 - 100 %
Batching time: 6 - 24 h
Hot washing off

To obtain best degrees of whiteness a subsequent Pad Steam Peroxide Bleach is recommended.

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Technical Data Sheet Ciba® INVATEX® MD cracking agent

Visco-Combi-Batch Process (VCB)

Combination method with good handle retention for simultaneous desizing, bleaching, and
causticizing of viscose piece goods

8 - 12 ml/kg Ciba® TINOCLARITE® CBB

40 g/kg NaOH 100 %
4-8 ml/kg Ciba® INVATEX ® MD
10 - 30 ml/kg H2O2 35 %

Bath temperature: room temperature (20 - 30 °C)

Liquor pick-up: 90 - 100 %
Batching time: 6 - 24 h
Hot washing off

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Technical Data Sheet Ciba® INVATEX® MD cracking agent

Headquarters / Europe Ciba Specialty Chemicals

Ciba Specialty Chemicals Inc. Asia
P.O. Box Guangdong Ciba Specialty Chemicals Ltd.
CH-4002 Basel Flying Geese Mountain Industrial Park
Fax: +41 61 636 50 09 Shilou Town, Panyu District, Guangzhou
E-mail: infotex@cibasc.com 511447, PR China
www.cibasc.com Tel: +86 20 84845100
Fax: +86 20 84845222
South America
Ciba Especialidades Químicas Ltda.
Av. Prof. Vicente Rao, 90
BR-04706-900
Caixa Postal 21.421
BR-04602-970 São Paulo-SP
Tel: +55 11 55327053
Fax: +55 11 55324109
North/Central America Region
Ciba Specialty Chemicals Corporation
4090 Premier Drive
USA-High Point, North Carolina 27265
Tel: +1 888 873 2422
Fax: +1 336 801 2808
India
Ciba Specialty Chemicals (India) Ltd.
Research Center
Off Aarey Road
Goregaon (E)
Mumbai 400 063, India
Tel: +91 22 841 1067
Fax: +91 22 841 1066
Pakistan/Bangladesh/Sri Lanka
Ciba Specialty Chemicals Inc.
Tel: +41 61 6361027
Fax: +41 61 6365972

Edition 2002
Copyright © 2002 Ciba Specialty Chemicals Inc. All rights reserved.
All product names in capital letters are either registered or pending trademarks and property of Ciba Specialty Chemicals.
IMPORTANT: The following supersedes Buyer’s documents. SELLER MAKES NO REPRESENTATION OR WARRANTY, EXPRESS OR IMPLIED, I NCLUDING OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. No statements herein are to be construed as inducements to infringe any relevant patent.
Under no circumstances shall Seller be liable for incidental, consequential or indirect damages for alleged negligence, breach of warranty, strict liability,
tort or contract arising in connection with the product(s). Buyer’s sole remedy and Seller’s sole liability for any claims shall be Buyer’s purchase price. Data
and results are based on controlled or lab work and must be confirmed by Buyer by testing for its intended conditions of use. The product(s) has not been
tested for, and is therefore not recommended for, uses for which prolonged contact with mucous membranes, abraded skin, or blood is intended; or for
uses for which implantation within the human body is intended.

Please note that products may differ from country to country. If you have any queries, kindly contact your local Ciba Specialty Chemicals representative.
Further information at web sit e: http://www.cibasc.com.
2200061E.doc.-May 02, Printed in Switzerland.

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