LNC

COMPARISION OF MODQUEST-FSN & DEKOL-FBSN Modquest- FSN & other similar products such as DEKOL-FBSN (BASF), Hoquest – 1097(Colour chem.), Sokalan- CP- 5( BASF), Acusol-479N (Rohm & Haas) are all

acrylic co-polymers of varying molecular weight designed for applications in textile

wet processing & water treatment.

Modquest-FSN / Dekol-FBSN/Sokalan-CP-5 are products of similar chemistry & has

an approximate molecular weight of 70,000. These are non-surface active in nature

& hence are non foaming, making them suitable for application on new generation

high turbulance equipments such as jets, soft flow machines, continuous process

systems amongst others.

The Modquest- FSN exhibits following properties.

� CHELATION/SEQUESTRATION

� DISPERSING/DEAGGLOMERATING

� PROTECTIVE COLLOID

� WATER SOFTENING

CHELATION/SEQUESTRATION

Modquest-FSN is a solution co-polymer in which polymerization of co-monomers is

so carried out to achieve right sequestration value suitable for chelating hardness

causing ions already present in water (Ca, Mg, Fe) & also hardness released from

cellulosic fibres during its wet processing As in all textile operations of washing,

scouring ,bleaching & dyeing the quality of water used is of great importance.

WASHING :The salt of Ca , Mg & Fe present in most water are very objectionable.

When soap is added to such water no lather is at first produced, a turbid solution is

formed and curds of sticky insoluble soaps eventually produced.The sticky insoluble

calcium and magnesium soaps, which are precipitated may deposit irregularly on

the goods and uneven dyeing is sure to follow. The effect of iron in water, used in

dyeing mordant colours on wool is to sadden or dull shade. The finishing of cotton

and rayons is often affected by the calcium and magnesium salts in water particularly where emulsions or softeners are used. Both naturally will prevent the

precipitation of soaps, oils, finishes, sizes and dyes with the hardness forming salts

in water. It will also condition the water against attachment on pipe lines and thus

decrease the amount of iron taken up in solution.

SCOURING : The removal of waxes, oils and fats, sizes and others from textile is

important in their manufacture. In kier boiling, 3-5% of caustic soda is usually used

Technical Presentation

2

with the assistants such as soaps. The addition of MODQUEST-FSN to the

caustic soda solution will prevent precipitation of silicate, metallic soaps, pectins

etc. It will inhibit catalystic oxidation of cotton & rayon. It improves whiteness &

inhibits yellowing in storage, in white cotton processing.

BLEACHING : It can be used as bleach stable additive into silicate containing and silicate free bleaching baths providing bleached goods of high whiteness and

quality.

Comparative Chelating Value at various pH /Room temp

Sr.

No.

Product Chelating value at various pH /.

10 11 12 13

1 Modquest-

FSN 86 78 77 76

2 Dekol-FBSN 86 77 76 74

Table.No.1

COMPARATIVE CHELATING VALUE OF MODQUEST-FSN AGAINST

DEKOL-FBSN AT VARIOUS pH & CONSTANT TEMP

68

70

72

74

76

78

80

82

84

86

88

10 11 12 13pH

Ch

ela

tio

n v

alu

e

MFSN

DFBSN

Fig.No. 1

3

Comparative Chelating Value at various pH / temp.(95ºC)

Sr.

No.

Product Chelating value at various pH / temp.

10/95º

C

11/95º

C

12/95º

C

13/95º

C

1 Modquest-

FSN 79 78 76.5 76.0

2 Dekol-FBSN 79 77 75.5 74.5

Table 2

COMPARATIVE CHELATING VALUE OF MODQUEST-FSN AGAINST

DEKOL-FBSN AT VARIOUS pH & 95ºC TEMP

72

73

74

75

76

77

78

79

80

10 11 12 13pH

Ch

ela

tio

n v

alu

e

MFSN

DFBSN

Fig. 2

REMARK: MODQUEST-FSN exhibits better chelation value at various pH &

temperature in comparision to DEKOL-FBSN

Dyeing : The manipulated chelation value of Modquest-FSN have no tendency to

sequester/demetalize metal ions present in reactive/vat/sulfur & other anionic

dyes preventing any tone changes. M-FSN is a product with an equilibrated chelation value so that it will not extract metals from dyestuffs & does not cause

un-levelness on fabrics.

4

DISPERSING/DEAGGLOMERATING Dispersing of the sequestered ions from the fibres & hardness of water

SCOURING & DISPERSING ABILITY : Modquest-FSN exerts an outstanding

dispersing effect on the impurities in raw cotton (e.g. waxes & pectinates) and on

the precipitates caused by hard water.

Modquest-FSN helps to disperse salts released from fibers and shows good iron

(Fe) & Calcium (Ca) binding properties.

Regarding compatibility of Modquest-FSN / Dekol-FBSN & Calcium Chloride.

Sr. No.

Product I II III IV

1 Modquest-

FSN / Dekol-

FBSN

90 MODQUEST-FSN / DEKOL-FBSN (10% )

75 85 90

2 Calcium

chloride

solution(10

% )

10 25 15 10

Remarks

White thick

layer dissolves

immediately

under

stirring

White

lumped dissolves

over night

without

stirring

White layer

dissolves within 15-

20 mins.

without

stirring

White layer

dissolves within 5

mins. without

stirring

Table 3

Sr. No.

Modquest-FSN/Dekol-

FBSN

Volume 1000 ppm Calcium chloride required for precipitation

1 100 gpl 100 ml 1500 ml

2 10 gpl 100 ml 150 ml

3 2 gpl 100 ml 30 ml

Table 4

Remark: Above precipitation is visually observed. No gelatinous mass or lumps

are observed.

Modquest-FSN exerts an outstanding dispersing effect on the impurities in raw

cotton (e.g. waxes & pectinates) and on the precipitates caused by hard water.

Dispersing efficiency of Modquest-FSN and Dekol-FBSN studied on Titanium Dioxide pigment.

5

Sr.

No.

% of Modquest-

FSN / Dekol-FBSN

% of Titanium

Dioxide

Dispersing efficiency

1 NIL 1 UNSTABLE-SEPERATION WITHIN 5-10 MINS

2 0.1 1 STABLE FOR 8 HRS, SECOND DAY

SHOWS 5 % SEPERATION ON TOP

3 0.1 3 “

4 0.1 5 “

5 0.1 7 “

6 0.1 10 “

Table 5

CONCLUSION :

� Both Modquest-FSN & Dekol-FBSN exhibits similar dispersing efficiencies with

Titanium Dioxide i.e. inorganic pigment ( Stability observed for more than 8 hrs)

� Without product Titanium Dioxide dispersion is very weak. Gives immediate

sedimentation

• BLEACHING : Reduced damage to bleaching machine and improved operation

rate.

Adherence of Scale to L-Box (pre-heater guide roll)

Scale Formation No scale formation with

Modquest-FSN Fig 3

6

Adherence of scale to Horizontal washer (touch bar)

Scale Formation No scale formation with Modquest-FSN

Fig. 4

• Reduced damage to bleached good (crease marks, texture disorder, harsh

handle etc)

• For bleaching purposes water containing iron is very objectionable because it often gives a yellowish cast to bleached materials.

• Capability to chelate & disperse heavy metal ions and anti catalyzing effect

against decomposition of hydrogen peroxide.i.e. prevention of metal ion related process trouble. Improvement in quality of bleached goods realising reduced

strength loss & reduced possibility of pin holes.

Pin holes produced on thin Reduced Pin holes produced on thin

cotton fabric after bleaching cotton fabric after bleaching

Fig. 5

� DYEING:

It is also responsible for the following effects if hard water is used for dyeing of raw

cotton with reactive and direct dyes.

� Is a very effective dispersant for calcium carbonate thus formed and maintains

it in a finely dispersed state. As a result, opalescence of the dyeing liquor is

avoided. � It suppresses the formation of calcium salts of reactive dyes hydrolysates that

are difficult to wash out during reactive dyeing.

. .

. .

.

7

� It can prevent precipitation (re-deposition) of the substances released from

the cotton in alkaline baths & of non-saponifiable accompanying impurities

during the dyeing of cotton & its blends.

� Has ability to disperse & prevent agglomeration of dyestuffs during the dyeing

operation.

� Will increase solubility of precipitating salts by threshold effect i.e. adsorption on small seeds of precipitates & prevents their growth and agglomeration.

This reduces precipitation & scale formation of inorganic salts along with

hardness causing ions which could otherwise deposit on fabrics in the rinse

bath.

� Employed in dyeing processes to improve solubility and dispersion of dyestuffs.

They will prevent aggregate formation, which cause un-levelness on fabrics.

� Ensures consistent results in dyeing of reactive dyes & increases the colour

yield in hard water in comparison to Dekol-FBSN .(Folder enclosed for your

reference.)

� Improves fastness properties of dyeings with direct dyes & promotes removal

of hydrolyzed dyes in soaping of reactive dyed fabrics.

� In many cases prevents filtering off in dyeing wound packages.

PROTECTIVE COLLOID

• The hydrolyzed reactive dye- stuffs are thus dispersed into the bath and

conventionally dispersed. It prevents aggregates of insoluble vat dyes which

cause spots on dyed materials. Modquest-FSN contribute to protect dyes

against further hydrolysis and are considered as protective colloids.

• Modquest-FSN is an effective protective colloid and dispersants to prevent

precipitation of mineral salts and avoids settling and scaling on fibers and

machineries.

WATER SOFTENING Modquest-FSN/Dekol-FBSN in general is sequestering agent for polyvalent ions of

many metals such as calcium, magnesium, iron, copper, nickel, zinc and lead. The

polyphosphates widely used in softening water, are unstable at elevated

temperatures and incompatible with some materials, while it is suited for treatment

of water for boilers because of its stability under high pressure and high

temperature.

The % amounts of Dekol-FBSN to soften hard water:

Table.No.6 PH PPM

7 8 9 10 11

500 0.8625 0.8625 0.95 0.96 0.988

1000 1.725 1.725 1.9 1.925 1.975

1500 2.588 2.588 2.85 2.888 2.963

2000 3.45 3.45 3.8 3.85 3.95

8

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

% OF DEKOL-FBSN

HARDNESS IN PPM

% AMOUNT OF DEKOL-FBSN TO SOFTEN HARD WATER

pH 7

pH 8

pH 9

Fig. 6

The % amounts of Modquest-FSN to soften hard water:

Table.No.7

PH PPM

7 8 9 10 11

500 0.825 0.825 0.888 0.938 0.95

1000 1.65 1.65 1.775 1.875 1.9

1500 2.475 2.475 2.663 2.813 2.85

2000 3.3 3.3 3.55 3.75 3.8

0

0.5

1

1.5

2

2.5

3

3.5

4

% OF MODQUEST-FSN

HARDNESS IN PPM

% AMOUNT OF MODQUEST-FSN TO SOFTEN HARD WATER

pH 7

pH 8

pH 9

pH 10

pH 11

500 1000 1500 2000

Fig.No. 7

Conclusion : Modquest-FSN shows better water softening property than Dekol-

FBSN

The information in the datasheet is based on our present state of knowledge & is

published without any obligation on our part.

500 100 150 2000