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Function of Dying Chemical and Auxiliary !"# $% &'% () *(+ *, * /+0 *(1110)23**404*($0 . 5%+ $% 6)23* ( % ( ''7 Pre-treatment Chemical 8%%0 ( !"#$% . )&$"'(" )$%.%)*" " +# " (" %9$"))'+# " $"# " &: (( 8%% ,''- ('.'/ . )&$"'(" )$%.%)*" " +# " (" %9$"))'+# " $"# " ;.% (( 8%% ''0 (1 ! . )&$"'(" )$%.%)*"+#(" %9$"))'+# " $"# " 3"% (( 8%%2/-''.3 !0 ((%4(56789/-':-' . )&$"'(" )$%.%)*" " +# " (" %9<<<< 8.3-# 8%%/; (<<<< . )&$"'(" )$%.%)*"+#(" %9<+# " '=" " (" " />$" - 8%% '/ (?'-$%5$%$": . )&$"'(" )$%.%)*"+#(" %9<+# " '=" " (" " />$" '%2-4*,% • 68*+-%( '%2- 8%% '-?'-#"@A:'):A (3A'B(%16*""#""%1 . )&$"'(" )$%.%)*" " +# " (" %9<<<< [...]... 50 C Remarks: Wash fastness of fabrics mostly depends on the washing off process Washing off Agent Criteria : It's pH should be neutral with moderate dispersing & anionic detergency effect Dosage Qty : Dosage to be made as per the shade% Run Time : 10-15 min 0 Temperature : 98 C Remarks : Wash fastness of fabrics mostly depend on the washing off process For VinylSulphone dyes Acidifying for neutralization... Firstly cooling and overflowing then three washes at 70C for 10 min each, 0 0 0 then at 98 C (with sequestrant) for 10-15 min and for 10 min at 70 C and at 50 C for 10min Finishing Chemical Fixing Agent Criteria : It makes coating on the fabrics and color change is inevitable Dosage Qty : As per the depth of shade Run Time : 15-20 min Temperature : 30-40C Remarks : All most all the the finishing chemicals... Criteria : Both enzymetic and non-enzymetic(Thio-sulphate based) ( 60C for Enzymetic and 80 for non-enzymetic) Dosage : Depending on the presence of Peroxide, thedosing should be within 0.25 to 0.5 g/L Run Time : 15 min 0 0 Temperature : 65 C/80 C Remarks : Presence of Peroxide to be tested by Peroxide stripe Acetic Acid Criteria : Glacial Acetic Acid(99%) & no Inorganic Acid to be present Dosage : To get... for metal complex dyes, the dosing should be higher Run Time: ++++ Temperature: Normal temp Remarks: Dyestuffs can be dissolved with some dispersing agent Salt dosing should be done at linear method Leveling Agent Criteria: It's a kind of retarding agent and acts as stabilizing the exhaustion of dyestuffs for maximum dye-levelness Dosage Qty: Usually 0.5 g/L but for light shades higher dosing should... than 8.5 and should be hardness andbi-carbonate free Purity test to be done prior to use (amount needed to gain expected concentration) Dosage Qty: •To gain recommended concentration •To gain recommended concentration (Optimum fixation pH is 10.8-11.5) Run Time: ++++ 0 Temperature : 60 C Remarks: During soda dosing maximum care to be taken and dosing should be done as slow as possible Progressive Dosing... scouring Dosage Qty : Excessive dosing may reduce tensile strength Run Time : 30-45 min 0 Temperature: 60 C Remarks: ++++ Finally over flow wash for 5 mins and fabrics Temperature checking is important Fabrics temp should be less than dyeing temperature Dyeing Chemical Dispersing Agent • Criteria: It should not have any proton treatment property & should have both Iron,Magnesium and Calcium binding power... should be needed for betterlevelness Run Time: ++++ Temperature: Remarks: ++++ ++++ Anti-creasing Agent Criteria: Should be colorless and stable in high pH & temp Dosage Qty: Lower GSM fabrics need more Anti-creasant Run Time: ++++ Temperature: Remarks: ++++ ++++ Dyestuffs Criteria: To be dissolved and filtrated properly It it better to dissolve with some dispersing agent and Acetic Acid Dosage Qty: According... Finally over flow wash for 10 mins and Fabrics pH (to be kept between 5.5-6) and Temperature (to be kept below dyeing temperature) checking is very important Bio polishing Chemical Acetic Acid Criteria: Glacial Acetic Acid(99%) & no Inorganic Acid to be present Dosage Qty: To decrease pH to 4-5 Run Time : +++++ Temperature: Remarks: ++++++ 0 60 C Cellulose Enzyme & GSM of fabrics • Criteria: For better... Caustic Soda Criteria :Purity test to be done prior to use.(amount needed to gain expected concentration) Dosage Qty: To gain recommended concentration (Optimum fixation pH is 10.8-11.5) Run Time: ++++ Temperature: ++++ Remarks : ++++ Running the bath at 60C until shade matching … Washing off Chemical Acetic Acid Criteria: Glacial Acetic Acid (99%)& no Inorganic Acid to be present Dosage Qty : To gain... As per the depth of shade Run Time : 15-20 min Temperature : 30-40C Remarks : All most all the the finishing chemicals to be applied Other Finishing Agent • Criteria : Cationic finish reduces wash & light fastness of the fabrics Dosage Qty : As per the quality requirement Run Time : 15-20 min Temperature : +++++ Remarks : in acetic medium . Function of Dying Chemical and Auxiliary . /+0 *(1110)23**404*($0 . 5%+ $% 6)23* ( % ( ''7 Pre-treatment Chemical 8%%0 (. -)$%.%4 9$4*1-+ ($%.%#9 (5%+$% 0 Bio polishing Chemical 8%%4++@82 (B+)0*# .
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