Sizing présentation

Textile Effects1110015E

Sizing for Water-jet Weaving


Water-jet Weaving

Tsudakoma ZW405 water-jet loom

In water-jet weaving the weft is transported across the loom using a jet of water.

The size on the warp yarn must, therefore, be resistant to the effect of cold water, not soften or become sticky.

It must also be easy to remove in water during desizing.


Water Jet Sizing

Dry Weaving

PolyesterPolyamideAcetate

Fibre type

Acrylic esterPolyester Resin

Size type

SyncolTescol

Product Range

Water Jet Weaving

Filament Yarn


Requirements Of A Water Jet Size

• Suitable form for application–– water soluble prior to application

•• Dry to an insoluble film –– with good filament adhesion–– non blocking–– minimum deposit–– low sensitivity to cold water

•• Readily desized–– removed easily by scouring in mild alkali


Mechanism for Acrylate Esters (1)

Ammonium salt

CH2 CH CH2 C CH2 CH CH2 C CH2 CH

CH3 CH3

C C C CO O O O

O O_ NNHH44++ O O

R1 R2 R3

Water Solubleas in the original size solution



NNHH33Acid form


CH3 CH3

C C C CO O O O

O O HH O O

R1 R2 R3

Water Insolubleas on the sized yarn on loom



Sodium salt


CH3 CH3

C C C CO O O O

O O_ NaNa++ O O

R1 R2 R3

Water Solubleas in the desizing process


Mechanism for Polyester Resin

1 Product dispersed in water (after heating)

2 Dried film insoluble in cold water (differential thermal solubility)

3 Product re-disperses readily in hotwater


Products

•• TESCOL PWJTESCOL PWJ–– 20% active acrylate ester20% active acrylate ester–– complete product containingcomplete product containing

size, antifoam, biocide, lubricant & antistatsize, antifoam, biocide, lubricant & antistat–– water jet size for both PA & PESwater jet size for both PA & PES–– excellent filament adhesion excellent filament adhesion

•• TESCOL PRSTESCOL PRS–– 100% active polyester resin100% active polyester resin–– highest level of adhesionhighest level of adhesion–– only for polyester yarns only for polyester yarns –– excellent nonexcellent non--blocking properties (compared toblocking properties (compared to

other PES resins)other PES resins)


Comparison of TESCOL PRS/PWJ

TESCOL PRSTESCOL PRS•• Very high adhesionVery high adhesion

•• Low blockingLow blocking

•• Easy toEasy to desizedesize but low alkali level but low alkali level requiredrequired

•• Only for polyesterOnly for polyester

•• BoughtBought--in productin product

•• Excellent for dry weavingExcellent for dry weaving

TESCOL PWJTESCOL PWJ•• High adhesion levelHigh adhesion level

•• Low blockingLow blocking

•• More tolerant of higher alkali levelsMore tolerant of higher alkali levels

•• Versatile, PES and PAVersatile, PES and PA

•• InIn--house technologyhouse technology

•• Can be used for dry weaving Can be used for dry weaving


Typical size on Yarn levels

Non-Texturised TexturisedYarn Loom Product Denier Decitex zero twist 200tpm 400tpm 600tpm zero twistPolyester Water-Jet Tescol PWJ 50 56 5-6 4-5 2-3 - 10-12

or 75 84 4-5 3-4 1-2 - 8-10Tescol PRS 150 167 4-5 3-4 1-2 - 8-10

300 333 3-4 2-3 1-2 - 6-8Polyamide Water-Jet Tescol PWJ 40 44 5-6 4-5 2-3 -

70 78 4-5 3-4 1-2 -100 110 3-4 2-3 1-2 -200 228 2-3 1-2 - -

Assume wet pick up of:Twist zero 200 400 600Non Texturised 40 - 50% 40% 35% 30%Texturised 80 - 100%


Desizing Requirements for Tescol PWJ

5:1

liquor ratio 10:1

liquor ratio Continuous

system

Sodium Carbonate

4 - 5 g/l 2 - 3 g/l 10 - 15 g/l

Detergent Ciba® ULTRAVON® CN

1 - 2 g/l 0.5 - 1 g/l 3 - 4 g/l


Desizing Requirements for Tescol PRS

5:1

liquor ratio 10:1

liquor ratio Continuous

system

Sodium Carbonate

0.5 - 1 g/l 0.5 - 1 g/l 1 - 3 g/l

Detergent Ciba® ULTRAVON® CN

1 - 2 g/l 0.5 - 1 g/l 3 - 4 g/l

Sizing présentation

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