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Pratically woven fabric dyeing process
1. SOUTHEAST UNIVERSITY BANGLADEH
DEPARTMENT OF TEXTILE ENGINEERING
ïĄNAME: MD MEHEDI HASAN
ïĄBATCH:2ND (EVENING)
ïĄMAJOR: WET PROCESSING
TECHNOLOGY
DEPARTMENT OF TEXTILE ENGINEERING
Woven Fabric Dying Process
3. 1)GREY FABRIC INSPECTION:
INSTRUMENT USED FOR GREY FABRIC INSPECTION
1. INSPECTION TABLE
2. MARKER
3. CUTTER
LIST OF FAULTS IN GREY INSPECTION
1. COLOR VARIATION
2. HAIRINESS
3. SELVEDGE
4. REED MARK
5. STARTING MARK (THICK, THIN)
6. COLOR YARN
7. SMASH 8. SLAB
9. TIGHT
10. MISS PICK
11. DOUBLE PIC
4. 12. THIN/THICK YARN
13. OIL SPOT 14. HOLE
15. DAMAGE
16. LOOSE YARN ETC
GRADING CALCULATION:
:
SIZE OF DEFECTS PENALTY POINTS
3â OR LESS 1
3â- 6â 2
6â- 9â 3
3 OVER 9â 4
5. CALCULATION (4 POINT SYSTEM)
GRADE POINT (PER 100 YARDS) = TOTAL POINT X 3600/TOTAL LENGTH (YARD) X FABRIC WIDTH
(INCH)
IF GRADE POINT IS GREATER THAN 10 PER 100M FABRIC, THEN THE FABRIC WILL BE REJECTED.
FIGURE: WAITING FOR INSPECTION
7. DESIZING UNI
PAD BATCH (CONDITIONING)
WASH
SCOURING
WASH (WATER +STEAM)
BLEACHING (HOT STEAM TO DRY
8. WASH
DRYIN
GO TO MERCERIZATION SECTION
SINGEING
SINGEING IS THE PROCESS WHICH IS CARRIED OUT FOR THE PURPOSE OF REMOVING THE LOOSE
HAIRY FIBERS
PROTRUDING FROM THE SURFACE OF THE CLOTH, THEREBY GIVING IT A SMOOTH, EVEN AND CLEAN
LOOKING FACE.
SINGEING IS AN ESSENTIAL PROCESS FOR THE GOODS OR TEXTILE MATERIAL WHICH WILL BE
SUBJECTED TO
MERCERIZING, DYEING AND PRINTING TO OBTAIN BEST RESULTS FROM THESE PROCESSES.
GENERALLY THERE ARE 3 TYPES SINGEING MACHINE:
GAS SINGEING MACHINE
ROLLER SINGEING MACHINE &
PLATE SINGEING MACHINE
9. OBJECTS OF SINGEING
1. SINGEING OF A FABRIC IS DONE IN ORDER TO OBTAIN A CLEAN FABRIC SURFACE WHICH
ALLOWS THE
STRUCTURE OF THE FABRIC TO BE CLEARLY SEEN.
2. THE RISK OF PILLING, ESPECIALLY WITH SYNTHETICS AND THEIR BLENDS, IS REDUCED IN CASE
OF
SINGED FABRICS.
3. PROTRUDING FIBERS ARE REMOVED IN SINGEING WHICH COULD CAUSE DIFFUSED REFLECTION
OF LIGHT.
IN THIS FACTORY, GAS SINGEING MACHINE IS USED
10. THEN THE FABRIC IS GIVEN TO DESIZING SECTION FOR REMOVAL OF SIZING MATERIAL. NOW A
DAYS ENZYME DESIZING IS MORE POPULAR THAN THE ORDINARY WAY. BUT CONVENTIONAL
PROCESS IS MORE EFFECTIVE AND CHEAP
. BEFORE DESIZING THE ROLL OF FABRIC IS KEEP FOR A
CERTAIN TIME FOR BATCHING.
LIST OF SINGEING AND DESIZING MACHINES:
Machine name Company Origin
Osthoff Singe Osthoff Germany
Osthoff Singe Osthoff Germany
11. MACHINE PARAMETERS:
NO. OF BURNER 02
BURNER HEIGHT 16 INCH
FABRIC SPEED 50-100 M/MIN
PH OF BATH 6.5 - 7.5
FABRIC SPEED 50-100 M/MIN
BOTH SIDE SINGE
DESIZING:
AFTER SINGEING UNITE, FABRIC GOES TO DESIZING UNIT. DESIZING IS THE PROCESS OF REMOVING
SIZE MATERIALS FROM THE FABRIC, WHICH IS APPLIED IN ORDER TO INCREASE THE STRENGTH OF
THE YARN WHICH CAN WITHSTAND WITH THE FRICTION OF LOOM. FABRIC WHICH HAS NOT BEEN
DESIZED IS VERY STIFF AND CAUSES DIFFICULTY IN ITS TREATMENT WITH DIFFERENT SOLUTION IN
SUBSEQUENT PROCESSES
OBJECTIVES OF DESIZING:
1. THE MAJOR TASK OF DESIZING IS TO REMOVE THE SIZE MATERIALS FROM THE FABRIC.
2. TO MAKE THE TEXTILE MATERIAL MORE ABSORBENT.
3. TO PERFECT ACTION OF SCOURING AND BLEACHING.
4. TO MAKE THE TEXTILE MATERIALS SUITABLE FOR SUBSEQUENT OR NEXT PROCESS.
12. DESIZING CHEMICALS ARE GIVEN BELOW:
ULTRA DESIZER TM (ENZYME)
HOSTAPOL EXTRA LIQ(WETTING AGENT)
SIRRIX 2UD (SEQUESTERING AGENT)
IN THIS FACTORY, SINGEING AND DESIZING BOTH PROCESS ARE CARRIED OUT AT THE DIFFERENT
PORTION OF THE SAME MACHINE. OTHERWISE IT CAN SAY THAT, SINGEING BURNER &DESIZING
BATH ARE CONSECUTIVELY INTERCONNECTED
13. RECIPE FOR DESIZING:
RECIPE FOR ENZYME BASED DESIZING
ULTRA DESIZER TM (ENZYME) 5 KG
HOSTAPOL EXTRA LIQ(WETTING AGENT) 5 KG
SIRRIX 2UD (SEQUESTERING AGENT) 2 KG
WATER 1000L
PH OF DESIZING BATH 6.5-7.0
TEMPERATURE OF DESIZING BATH 65-70°C
RECIPE FOR ENZYME BASED DESIZING
ULTRA DESIZER TM (ENZYME) 5 KG
HOSTAPOL EXTRA LIQ(WETTING AGENT) 5 KG
SIRRIX 2UD (SEQUESTERING AGENT) 2 KG
WATER 1000L
PH OF DESIZING BATH 6.5-7.0
TEMPERATURE OF DESIZING BATH 65-70°C
14. CONTROLLING POINT OF THE SINGEING &DESIZING MACHINE
FLAME INTENSITY
FABRIC SPEED
SINGEING POSITION
DISTANCE BETWEEN FLAME BURNER AND FABRIC
TEMPERATURE
FLAME WIDTH
TIME & PH
NIP PRESSURE FOR DESIZING
AFTER DESIZING PROCESS, THE FABRIC IS BATCHED IN ROLL FORM AND THE BATCH IS WRAPPED
WITH POLYETHENE AND CONDITIONED WITH CONTINUOUS ROTATION FOR ABOUT 8 TO 16
HOURS. POLYETHENE WRAPPING PREVENT EVAPORATION OF CHEMICALS FROM THE FABRIC
SURFACE AND CONTINUOUS ROTATION PREVENTS PERCOLATION OF THE DESIZING CHEMICALS.
AFTER COMPLETION OF THE ROTATION PERIOD, IT GOES FOR THE NEXT PROCESS.
15. SCOURING AND BLEACHING:
SCOURING IS THE PROCESS BY WHICH NATURAL (OIL, WAX, GUM. FAT ETC.) AS WELL AS ADDED
(DURING FABRICATION PROCESS) IMPURITIES OF ESSENTIALLY HYDROPHOBIC CHARACTER ARE
REMOVED AS COMPLETELY AS POSSIBLE AND LEAVE THE FABRIC IN A HIGHLY ABSORPTIVE
CONDITION WITHOUT UNDERGOING CHEMICAL OR PHYSICAL DAMAGE OF THE FABRIC
SIGNIFICANTLY.
OBJECTIVES OF SCOURING:
1. THE MAIN PURPOSE OF SCOURING IS TO REMOVE THE IMPURITIES FROM THE TEXTILE
MATERIALS.
2. THE TEXTILE MATERIALS ARE LEAVE IN A HIGHLY ABSORPTIVE CONDITION WITHOUT
UNDERGOING ANY CHEMICAL OR PHYSICAL DAMAGE SIGNIFICANTLY.
3. AFTER SCOURING PROCESS, MATERIAL BECOMES SUITABLE FOR THE NEXT PROCESS
BLEACHING.
16. BLEACHING PROCESS :
AN BE DEFINED AS THE DESTRUCTION OF NATURAL COLORING MATTERS FROM THE TEXTILE
MATERIALS IN ORDER TO ACHIEVE A CLEAN WHITE END PRODUCT. DIFFERENT TYPES OF BLEACHING
AGENT ARE USED DURING BLEACHING.
OBJECTIVES OF BLEACHING
1. THE MAIN OBJECTIVE OF BLEACHING IS TO GET A SUFFICIENTLY HIGH AND UNIFORM DEGREE OF
WHITENESS IN THE TEXTILE MATERIALS.
2. TO GET A HIGH AND UNIFORM ABSORPTIVITY IN THE TEXTILE MATERIALS.
3. TO PREPARE THE FABRIC FOR THE NEXT PROCESS MERCERIZING OR DYEING.
IN WOVEN FACTORY, SCOURING AND BLEACHING IS DONE IN THE SAME MACHINE ONE AFTER
ANOTHER. OTHERWISE IT CAN SAY THAT, SCOURING & BLEACHING UNIT ARE CONSECUTIVELY
INTERCONNECTED.
SCOURING &BLEACHING PROCESS USED IN THIS FACTORY:
SCOURING: CONTINUOUS SCOURING PROCESS WITH NAOH USED IN THIS FACTORY.
BLEACHING: CONTINUOUS PEROXIDE BLEACHING PROCESS IS USED IN THIS FACTORY.
20. CHEMICAL USED IN SCOURING:
SIRRIX 2UD (SEQUESTERING AGENT)
HOSTAPALXTRA (WETTING AGENT)
CAUSTIC SODA (NAOH)
CHEMICAL USED IN BLEACHING
SIRRIX 2UD (SEQUESTERING AGENT)
HOSTAPALXTRA (WETTING AGENT)
STABILIZER FCB (STABILIZER)
CAUSTIC SODA (NAOH)
HYDROGEN PEROXIDE (H2O2)
RECIPE FOR SCOURING PROCESS
SIRRIX 2UD (SEQUESTERING AGENT) - 2-4 G/L
HOSTAPALXTRA (WETTING AGENT) - 2-4 G/L
CAUSTIC SODA (NAOH)- 22-28 G/L
DWELL/BED TIME- 18-20 MIN
PADDER PRESSURE- 2-3 BAR
SPEED- 50-60M/MIN
21. EXAMPLE RECIPE FOR BLEACHING PROCESS:
SIRRIX 2UD (SEQUESTERING AGENT) - 4-6G/L
HOSTAPALXTRA (WETTING AGENT) - 2-5G/L
STABILIZER FCB- 6-8G/L
CAUSTIC SODA (NAOH) - 12-16G/L
HYDROGEN PEROXIDE (H2O2) - 12-16 G/L
DWELL/BED TIME- 18-20 MIN
PADDER PRESSURE- 2-3 BAR
SPEED- 50-60M/MIN
CONTROLLING TO SCOURING & BLEACHING MACHINE:
PH
TEMPERATURE
SPEED & TIME
CONCENTRATION OF HYDROGEN PEROXIDE (H2O2)& CAUSTIC SODA(NAOH)
WATER HARDNESS ETC.
22. CHEMICAL USED IN SCOURING:
SIRRIX 2UD (SEQUESTERING AGENT)
HOSTAPALXTRA (WETTING AGENT)
CAUSTIC SODA (NAOH)
CHEMICAL USED IN BLEACHING
SIRRIX 2UD (SEQUESTERING AGENT)
HOSTAPALXTRA (WETTING AGENT)
STABILIZER FCB (STABILIZER)
CAUSTIC SODA (NAOH)
HYDROGEN PEROXIDE (H2O2)
EXAMPLE RECIPE FOR SCOURING PROCESS
SIRRIX 2UD (SEQUESTERING AGENT) - 2-4 G/L
HOSTAPALXTRA (WETTING AGENT) - 2-4 G/L
CAUSTIC SODA (NAOH)- 22-28 G/L
DWELL/BED TIME- 18-20 MIN
PADDER PRESSURE- 2-3 BAR
SPEED- 50-60M/MIN
23. EXAMPLE RECIPE FOR SCOURING PROCESS
SIRRIX 2UD (SEQUESTERING AGENT) - 2-4 G/L
HOSTAPALXTRA (WETTING AGENT) - 2-4 G/L
CAUSTIC SODA (NAOH)- 22-28 G/L
DWELL/BED TIME- 18-20 MIN
PADDER PRESSURE- 2-3 BAR
SPEED- 50-60M/MIN
EXAMPLE RECIPE FOR BLEACHING PROCESS:
SIRRIX 2UD (SEQUESTERING AGENT) - 4-6G/L
HOSTAPALXTRA (WETTING AGENT) - 2-5G/L
STABILIZER FCB- 6-8G/L
CAUSTIC SODA (NAOH) - 12-16G/L
HYDROGEN PEROXIDE (H2O2) - 12-16 G/L
DWELL/BED TIME- 18-20 MIN
PADDER PRESSURE- 2-3 BAR
SPEED- 50-60M/MIN
24. CONTROLLING POINT OF THE SCOURING & BLEACHING MACHINE
PH
TEMPERATURE
SPEED & TIME
CONCENTRATION OF HYDROGEN PEROXIDE (H2O2)& CAUSTIC SODA(NAOH)
WATER HARDNESS ETC.
AFTER SCOURING AND BLEACHING, FOLLOWING TESTSARE DONE IN THE âONLINE
QCâ BOOTH
CONCENTRATION OF NAOH(GM/LT) IN SCOURING /BLEACHING BATH
CONCENTRATION OF H2O2 (GM/LT) IN BLEACHING BATH
PH TEST (DROP TEST METHOD)
TEGWA RATING (DROP TEST METHOD)
WHITENESS
AFTER BLEACH WIDTH (OPTIONAL)
ABSORBENCY TEST (CAPILLARY TEST METHOD)
25. MERCERIZATION:
MERCERIZATION IS ONE OF THE MOST IMPORTANT PROCESSES OF BACK PROCESS OR
PRETREATMENT SECTION. MERCERIZING IS THE TREATMENT OF COTTON WITH CONCENTRATED
CAUSTIC SODA UNDER FABRIC TENSION. IT IMPARTS GLOSS TO THE FIBER, INCREASES ITS
HYGROSCOPICITY, STRENGTH AND IMPROVES ITS DYE AFFINITY.
OBJECTS OF MERCERIZATION
1. LENGTH WISE SHRINKAGE AND SWELLING AXIALLY.
2. UNTWISTING OF FIBER.
3. CHANGES OF CROSS SECTION OF THE FIBER DUE TO SWELLING.
4. INCREASE TENSILE STRENGTH.
5. DECREASE THE EXTENSION AT BREAK.
6. INCREASE LUSTER.
7. INCREASE SMOOTHNESS OF FIBER.
8. INCREASE AFFINITY TO DYESTUFFS AND CHEMICALS.
27. PRACTICALLY USE MERCERIZING MACHINES:
MACHINE PARAMETER
PH FOR :
A. PIGMENT 5.5-6.5
B. REACTIVE 7-8
TEMPERATURE OF STABILIZER 800C
NUMBER OF WASHING BATH 8
TEMPERATURE OF WASHING BATH 90-950C
NUMBER OF ACETIC BATH 01
MAXIMUM M/C SPEED 60M/MIN
NORMALLY SPEED 25-50M/MIN
NUMBER OF DRYING CYLINDER 16
TEMPERATURE OF DRYING CYLINDER 180-2000C
NUMBER OF COOLING CYLINDER 02
Machine Name Company Origin
Mercerizing Machine Goller Germany
Mercerizing Machine Benninger Germany
Mercerizing Machine Brugman Holland
Mercerizing Machine Kusters Germany
28. PROCESS SEQUENCE:
FABRIC BATCH
â
CAUSTIC APPLICATION IN 1ST TANK
â
AGEING
â
CAUSTIC APPLICATION IN 2ND TANK
â
AGEING
â
RETENTION BY THE CHAIN
â
1ST CAUSTIC APPLICATION ON THE SURFACE FROM ABOVE AND SUCTION FROM BELOW ON STRETCHING
â
2ND CAUSTIC APPLICATION ON THE SURFACE FROM ABOVE AND SUCTION FROM BELOW ON STRETCHING
â
HOT WASH
â
NEUTRALIZATION BATH
â
DRYING
â
COOL DOWN OF FABRIC
â
BATCHING
29. MERCERIZATION RECIPE (HOT):
CAUSTIC SODA (NAOH) - 22-28°BE
ACETIC ACID (CH3COOH) -1 G/L
TEMP- 50-60°C
DWELL TIME- 1-2 MIN
PADDER PRESSURE â 2-3 BAR
TEMPERATURE
FABRIC SPEED
TIME
CONCENTRATION OF NAOH
PH RANGE OF FABRICS AFTER MERCERIZATION:
REACTIVE DYE- 6.5 - 7.5
VAT DYE- 6.5 - 7.5
WHITE FINISH- 5.5 - 6.5
RFD- 5.5 - 6.5
PIGMENT PRINT- 5.5 - 6.5
TESTS REQUIRED AFTER MERCERIZATION:
CONCENTRATION OF NAOH STRONG LYE(°BE)
CONCENTRATION OF NAOH WEEK LYE(°BE)
AFTER MERCERIZE WIDTH
PH TEST (DROP TEST METHOD)
30. 03 DYEING PROCESS:
WOVEN FABRIC CONTINUOUS DYEING PROCESS IS USED IN 5 TYPE:
THERMOSOL PROCESS
PAD STEAM PROCESS(UNDER THERMOSOL)
COLD PAD BATCH(CPB)
JIGGER MACHINE
THERMOSOL PROCESS
THERMOSOL DYEING PROCESS PROFFERS THE MAINLY ECONOMICAL AND EXPEDIENT TECHNIQUE
OF DYEING COTTON FABRIC WITH REACTIVE AND VAT DYES, AS IS A CONTINUOUS DYEING METHOD
WHICH IS APPLIED MAINLY FOR THE POLYESTER/COTTON BLENDED MATERIALS. THE WATER AND
ENERGY CONSUMPTIONS ARE VERY LOW AND ADDITION OF SALT IS REDUCED, THUS DEPICTING IT
EXTRA ECO-FRIENDLY AND THE DYE FIXATION RATE IS AT AN ELEVATED RATE AS WELL. THE
THERMOSOL DYEING IS A TROUBLE - FREE PROCEDURE AS SIMPLE STEP CONCERNED IS THE
CHANNEL OF TEXTILE FABRIC FROM SIDE TO SIDE OF THE DYE â BATH.
32. THERMOSOL MACHINES:
M/C SPECIFICATION:
01. SPEED METER
02. PADDER PRESSURE
03. INFRA RED (IR)1,2
04. COLOR LEVEL CONTROL
05. CHAMBER TEMPERATURE 1,2,3,4(BURNERS)
06. CIRCULATION FANS
07. COOLING CYLINDER
RECIPES
1.RECIPE FOR PDS(PAD DRY STEAM) PROCESS:
DYES AS PER LAB DIP
ALBAFLOW PAD 1 G/L HUNTSMAN WETTING AGENT
THERMOCOL MP 10 G/L HUNTSMAN ANTIMIGRATING AGENT
LYOPRINT- RG 2 G/L HUNTSMAN OXIDIZING AGENT
Machine Name Company Capacity Origin
Thermosol Monfornts 100000 meter/day Germany
33. 2.RECIPE FOR PDC(PAD DRY CURE) PROCESS:
DYES AS PER LAB DIP
UREA 150 G/L
CAUSTIC SODA (NAOH) 10 G/L
SODA ASH (NA2CO3)20 G/L
FABRIC TEST REQUIRED DURING THERMOSOL OPERATION:
1. PICK UP TESTING
2. SHADE LISTING IDENTIFICATION
PICK UP TESTING: BEFORE GOING TO THERMOSOL MACHINE, PICK UP OF THE FABRIC SHOULD BE
CALCULATED AND BASED ON THEIR RESULT, LIQUOR IS PREPARED.
SHADE LISTING IDENTIFICATION: AFTER EACH 1000 METER SHADE IS TESTED IN LIGHT BOX. HERE LISTING
PROBLEM IS VISUALIZED AND CAN BE SOLVED BY INCREASING OR DECREASING PADDER PRESSURE.
CRITICAL TO QUALITY (CTQ) LIST OF THERMOSOL
1.SPEED METER
2.PADDER PRESSURE
3.INFRA-RED(IR 1 & 2)
4.COLOR LEVEL CONTROL
5.HEATING CHAMBER
6.CIRCULAR FANS
7.COOLING CYLINDER
34. PAD STEAM MACHINE:
PAD STEAMIS THE ESSENTIAL MACHINEFOR DEVELOPING COLORAFTER THERMOSOLING IN CPS
PROCESS. GENERALLY THE COLOR WHICH IS APPLIED ON THE FABRIC SURFACE IS FIXED IN THIS
STAGE AND PROVIDES REQUIRED COLOR SHADE. HERE NOT ONLY CHEMICAL PADDING IS DONE
BUT ALSO APPLICATION OF COLOR IS ALSO POSSIBLE IF REQUIRED SHADE IS NOT ACHIEVED.
STRIPPING PROCESS IS ALSO DONE IN THIS MACHINE.
FIGURE: PAD STEAM MACHINE
35. SOME PAD STEAM MACHINE:
PAD STEAM PROCESS SEQUENCE:
PADDING LIQUOR BOWL
PADDING LIQUOR BOWL WITH MIGRATION INHIBITOR DRYING
DRYING CHAMBER
CHEMICAL PADDING
STEAM FIXATION
RINSE
SOAPING
RINSE
Machine Name Company Origin
Pad Steam Machine Goller Germmany
Pad Steam Machine Benninenger germany
36. RECIPES:
RECIPE FOR CPS (CHEMICAL PAD STEAM) PROCESS
GLAUBERâS SALT (NA2SO4) 250 G/L
SODA ASH (NA2CO3) 20 G/L
CAUSTIC SODA (NAOH) 6 G/L
RECIPE FOR STRIPPING PROCESS
HYDROSE (NA2S2O4) 50 G/L
CAUSTIC SODA (NAOH) 50) G/L
RECIPE FOR R.C (REDUCTION CLEANING) PROCESS:
SODIUM HYDRO SULFATE / 40-50 G/L
HYDROSE (NA2S2O4)
CAUSTIC SODA (NAOH) 30-40 G/L
IT IS USED FOR P
.C FABRIC AFTER POLYESTER DYEING WITH DISPERSE
37. FACTORY PRODUCTION CALCULATION:
FROM RUNNING PRODUCTION GET
FABRIC CONS.: 30 X 30 / 76 X 68
FABRIC QUANTITY: 5000M
FABRIC WIDTH: 117â
PICK UP % = WET WEIGHT AFTER PADDING â AIR DRY WEIGHT X 100
AIR DRY WEIGHT
= 198 â 120 X 100
120
= 65%
GSM = 120G
GLM = GSM X FABRIC WIDTH
39.37
= 120 X 117â
39.37
= 356
LIQUOR REQUIRED = GLM X FABRIC QUANTITY X PICK UP %
1000
= 356 X 5000 X 60%
1000
= 1068 LTR.
38. COLD PAD BATCH (CPB)
COLD PAD BATCH IS THE EASIEST PROCESS OF WOVEN FABRIC DYEING. IT IS THE MOST CONVENIENT DYEING
PROCESS FOR REACTIVE DYEING OF COTTON & OTHER CELLULOSIC FIBERS. HERE BOTH DYE AND CHEMICALS ARE
ADDED IN THE SAME BATH. PAD-BATCH DYEING IS A COLD METHOD USED FOR DYEING COTTON THAT CAN
ACHIEVE LARGE REDUCTIONS IN POLLUTION, ENERGY REQUIREMENTS, AND COSTS. THE BASICTECHNIQUE IS TO
SATURATE THE PREPARED FABRIC WITH A PRE-MIXED DYE LIQUOR AND PASS IT THROUGH A PADDER,
WHICHFORCES THE DYESTUFF INSIDE THE FABRIC FOR GREATER PENETRATION WHILE REMOVING EXCESS DYE
SOLUTION. THE FABRIC IS THEN BATCHED FOR 8 TO 12HOURS AND SUBJECTED TO CONTINUOUS ROTATION.
TYPICALLY, THE BATCHES ARE COVERED WITH A PLASTICFILM TO PREVENT CARBON DIOXIDE ABSORPTION AND
WATEREVAPORATION. WHILE IN BATCHING, THE DYESTUFF REACTS WITHTHE FABRIC, RESULTING IN EVEN,
CONSISTENTCOLOR. AFTER THE REACTION IS COMPLETE, THE FABRIC IS WASHED.
FIGURE CPB DYEING MACHINE
39. ROCESS SEQUENCE OF PAD-BATCH PROCESS:
PADDING
ROLL/BATCH AT 200C
RINSE
SOAPING
RINSE
TESTING REQUIRED DURING CPB DYEING PROCESS:
PICK UP TESTING: BEFORE GOING TO PAD STEAM PICK UP OF THE FABRIC SHOULD BE
CALCULATED AND BASED ON THIS RESULT, LIQUOR IS PREPARED.
SHADE MATCHING: AFTER EACH 1000 METERS OF FABRIC, A SAMPLE IS CUT. THEN IT IS PACKED
WITH POLY BAG. THEN IT GOES FOR DRYING. AFTER THAT WASH AND SOAPING IS DONE. FINALLY
DRYING AND THEN SHADE IS CHECKED IN LIGHT BOX.
40. JIGGER MACHINE:
JIGGER DYEING MACHINE IS MOST COMMONLY USED DYEING PROCESS FOR DYEING ALMOST ALL KINDS OF
COTTON FABRICS. THE FABRIC MOVES WHILE THE LIQUOR STANDS STILL, EXCEPT FOR THE VERY LATEST
MACHINES, WHICH ARE ALSO EQUIPPED WITH A CIRCULATION PUMP
.
JIGGER DYEING MACHINE
41. PROCESS SEQUENCE OF JIGGER DYEING PROCESS:
PADDING MANGLE
JIGGER TO DEVELOP COLOR
FIXATION
RINSE
SOAPING
RINSE
DIFFERENT FUNCTION
PADDING MANGLE (DYES): THE FABRIC IS PADDED WITH DYE LIQUOR IN A PADDING MANGLE. NO
ALKALI & SALT IS USED IN THIS STAGES.
JIGGER TO DEVELOP COLOR (NAOH + NACL): THE FABRIC IS TRANSFERRED TO JIGGER DYEING
MACHINE TO DEVELOPED THE COLOR WITH THE ADDITION OF SALT & ALKALI. DYE IS FIXED-UP IN
THIS STAGES.
RINSE , SOAPING, RINSE: AFTER FIXATION THE FABRIC IS RINSED, SOAPED, & AGAIN RINSED
THOROUGHLY.
43. CHEMICAL USED IN DIFFERENT PROCESS:
DRIM YELLOW CL-2R
DRIM RED CL5B
NOVA BLACK G
NAOH
NACL
PIRMASOL N
RECIPE FOR COLOR DEVELOP
CHEMICALS AMOUNT
PEROXIDE 4.5 KG/ 300 LTR
DETERGENT 1 KG/ 300 LTR
44. PRACTICALLY PRODUCTION PARAMETER (THERMOSOL) PAD DRY CURE FOR ALL SHADE:
PRACTICALLY PRODUCTION PARAMETER (THERMOSOL)PAD DRY FOR ALL SHSDE:
Const. GSM Dyes
Speed
m/m
Padder
Pressure
IR-1
ORIR-
Color
Level
Chamber-1 Chamber-2 Chamber-3 Chamber-4 Coolling
Cylinder
TempCË Circulation TempCË Circulation TempCË Circulation TempCË Circulation
SETPOINT 120gm REACTIVE 40m/m 253630 750 350 110 35% 120 40% 140 55% 150 50% ON
30x30/76x68
Cotton
120gm REACTIVE 35-50m/m
253625TO
253635
650
TO
800
300MM 100 -120 35%-45% 115 -125 40%-55% 130 -145 45%-65% 130 -145 45%-65% ON
45. PRACTICALLY PRODUCTION PARAMETER(PAD STEAM M/C:
AFTER THERMOSOL CHEMICAL PAD STEAM:
PRACTICALLY PARAMETER ON CPB DYEING:
Const. GSM
Speed
m/m
Padder
Pressure
N/mm
Color
Level
Steaming
Temp.
Chamber-1
Temp.
Chamber-2
Temp.
Chamber-3
Temp.
Chamber-4
Temp.
Chamber-5
Temp.
Chamber-6
Temp.
Chamber-7
Temp.
Chamber-8
Temp.
Chamber-9
Temp.
pH
Cylinder
Dryer
SETPOINT 40 35 - 30 - 35 300 102 40 95 95 95 95 95 95 95 40 4
20x20/104x5
2 doby
198gm 30 - 50
30 - 25 - 30
to
40 - 35 - 40
280 - 320 95 - 105ËC 30 -50ËC 85 - 99ËC 85 - 99ËC 85 - 99ËC 85 - 99ËC 85 - 99ËC 85 - 99ËC 85 - 99ËC 40-60ËC 3.5 - 4.5
FULL
DRY
Const. GSM Speed
m/mm
Padder
Pressure
Trough
Level
Winder Rotation
Time
SET POINT 120gm 40 3.5 - 3.0 - 3.5 300 UP
SIDE
10 hrs
30x30/76x68
COTTON
120gm 30-50 3.5 - 3.0 - 3.5 300
MM
UP
SIDE
8-12 hrs
46. COLAR MATCHING LAB:
LAB-DIP SUBMISSION:
1.LAB DIP REQUEST RECEIVED FROM MARKETING
2.REGISTRATION
3.ASSIGN TO TECHNICIAN
4.PREPARATION OF RECIPE AND OTHERS
5.PREPARE SOLUTION
6.PAD WITH SOLUTION
7.DRY AND CURE
8.WASH AND DRY
9.SHADE ASSESSMENT IN LIGHT BOX WITH PROVIDED SWATCH
10.SHADE ASSESSMENT IN DATA COLOR IF NEEDED
11.IF SHADE MATCH PROCEED TO THE FOLLOWING. (IF NOT MATCHED, THEN TRIAL AGAIN WITH
CORRECTION RECIPE)
12.SUBMISSION TO THE MARKETING SECTION OR BUYER
13.RECEIVED APPROVAL FROM MARKETING SECTION OR BUYER
14.RECIPE SUBMIT TO THE PRODUCTION FLOOR WHEN SHADE IS APPROVED
15.RECORD KEEPING
47. LAB-DIP APPROVAL PROCEDURE:
1.PREPARE THREE OPTIONS (A, B & C) OF GIVEN SHADE AND PASTE IT IN FOLDER.
2.SEND A COPY TO CUSTOMER/BUYER AND CONCERN PERSON OF MARKETING DEPARTMENT AND
KEEP ONE COPY IN THE FOLDER FOR RECORD.
3.CONCERN PERSON OF MARKETING DEPARTMENT SEND AN APPROVAL AND REJECTION OF LAB
DIPS.
4.IF SHADE APPROVED THEN SEND RECIPE OF APPROVED OPTION (A, B OR C) TO DYEING
DEPARTMENT.
5.IF SHADE IS REJECTED, AGAIN WORK ON IT ACCORDING TO CUSTOMERâS COMMENTS.
6.COLOR MATCHING IN CHARGE IS RESPONSIBLE FOR LAB-DIP APPROVAL
REACTIVE DYEING
PROCESS CPS (CHEMICAL-PAD-STEAM):
DYEING
STEAMING
HOT WASH
CALENDARING
SHADE MATCHING
Alkali Requarments CPS Process:
Shade Light Dark
Caustic soda 2 g/l 6 g/l
Soda ash (Na2CO3 10 g/l 10 g/l
48. Shade Light Dark
Caustic soda (NaOH) 2 g/l 6 g/l
Soda ash (Na2CO3) 10 g/l 10 g/l
PROCESS CPB (COLD-PAD-BATCH):
DYEING
WRAPPED THE FABRIC WITH POLYETHENE
OVEN DRYING FOR 30 MIN
HOT WASH
CALENDARING
SHADE CHECK
ALKALI RECUREMENTS THIS PROCESS:
Shade Light Medium Dark
Sodium silicate
(48°Be
30 g/l 45 g/l 60 g/l
Caustic soda
(38°Be)
6 g/l 12 g/l 16 g/l
49. VAT DYEING:
DYEING
RINSE WITH COLD WATER
HVHHYDROGEN PEROXIDE (H2O2) TREATMENT AT 60 0C FOR 2 MINUTES
HOT WASH
NEUTRALIZATION WITH ACETIC ACID
CALENDARING
SHADE CHECK
(NOTE :VAT DYE USE DIFFERENT TYPE OF FABRIC LIKE-BD POLICE, MILETARY, MANY DEFENSES UNIFROM)
Chemical requisition for vat dyeing process
Dye As per shade and combination
Hydrose (Na2S2O4) 60 g/l
Caustic soda (38°Be) 50 g/l
Glauberâs salt (Na2SO4 75 g/l
50. 04FINISHING PROCESS:
FOLLOWING MAWOVEN FABRIC FINISHING PROCESS CONTAINS THE MACHINERIES:
CURING MACHINE
STENTER MACHINE
SANFORIZE MACHINE
CALENDAR MACHINE
PEACH FINISH(BEFORE DYEING)
CURING MACHINE
PURPOSE OF CURING:
CURING IS A PROCESS IN WHICH FABRIC PASSES OVER A CHAMBER WHICH MAINTAINS
TEMPERATURE RANGE 140-160C FOR DWELLING 5-8 MINTS. FOR PIGMENT PRINTING CURING IS
NECESSARY DUE TO FIXATION OF COLOR.
OBJECTIVE OF LOOP STEAMING
AFTER PRINTING AND DRYING, THE DYE IS NOT TRANSFERRED INTO THE FABRIC IN FACT. DURING STEAMING
THE PRINTED & DRIED FABRIC IS EXPOSED TO THE ACTION OF MOIST, SATURATED OR SUPER HEATED STEAM AT
ATMOSPHERE OR HIGHER PRESSURE OVER A RANGE OF TEMPERATURE 100-103CFOR 6-7 MINTS. AS A RESULT
HIGH CONCENTRATION OF THE DYE ,IS RAPIDLY TRANSFERRED INTO THE FABRIC FROM THE THICKENER FILM.
52. STENTER MACHINE:
STENTERMACHINE IS THE MOST VERSATILE MACHINE IN THE FINISHING SECTION OF PROCESSING
DEPARTMENT. SEVERAL OPERATIONS CAN BE CARRIED OUT IN THIS MACHINE, SUCH AS â
1.APPLICATION OF FINISHING CHEMICALS
2.CONTROL OF SHRINKAGE
3. FABRIC WIDTH CONTROL
4.DRYING
5.APPLICATION OF DYES
6.TO CONTROL BOWING OF FABRIC
7.TO CONTROL SKEWNESS OF FABRIC
8.CURING ETC.
53. FACTORY USEABLE STENTER MACHINE:
MACHINE PARAMETER:
NO. OF CHAMBER - 08
TEMPERATURE OF EACH CHAMBER:
1ST& 2ND CHAMBER - 130C
3RD TO 7TH CHAMBER -140-160C
8TH CHAMBER - 170C
NO. OF GAS BURNER - 08
TEMPERATURE IS CREATED WITH THE HELP OF GAS BURNER
OVER FEEDING
CONTROLLING POINT:
OVER FEEDING
TEMPERATURE FOR EACH CHAMBER
SPEED OF FABRIC
CHEMICAL USED FOR FINISHING
PH OF CHEMICAL LIQUOR.
Name of M/C Company Origin
Stenter Monfornts Germany
Stenter Brckner Germany
Stenter Babcock Germany
54. EXAMPLE COTTON SPANDEX FABRIC FINISHING PARAMETER AND RECIPE:
FABRIC CONSTRACTION: 30*20+70D/144*73
M/C SPEED: 40M/MIN
FINISH WIDTH: 56INCH
AFTER SUNFORIZING WIDTH: 53INCH
TEMPERATURE: 130-140-150-160-170C
RECIPE:
ACN 10G/L
917 10G/L
RSL 5G/L
MAIN UNITS OF STENTER MACHINE
FEED ROLLER
J-BOX
GUIDE ROLLER
PADDER
MAHLO
OVER FEED ROLLER
UNDER FEED ROLLER
HEATING CHAMBER (BURNER)
WIDTH CONTROL DEVICE (WIDTH SENSOR)
SELVEDGE CONTROL DEVICE
EXHAUST FAN
BLOWER
DELIVERY ROLLER (TENSION ROLLER)
55. SANFORIZING MACHINE:
THIS MACHINE HAS A LARGER SIZE CYLINDER OR DRUM. IN THIS PROCESS THE FABRIC IS TREATED
WITH A TIGHT CONDITION ON THE CONTACT OF LARGER CYLINDER WITH THE HELP OF A HOT SHOE
AND AN ENDLESS WOOLEN BLANKET AND THUS GIVING THE FABRIC AN ANTI-SHRINKAGE
TREATMENT BY A PROPER SANFORIZING RANGE.
IT IS A MECHANICAL FINISHING PROCESS WHICH REMOVE THE TENDENCY OF SHRINK FROM THE
FABRIC.SANFORIZING PROCESS IS USED TO CREATE SHRINKAGE ON THE FABRICBY A ROTATING
ELASTIC FELT BLANKET WHICH IS CURVED TIGHTLY AROUND A SMALL DIAMETER SHAFT. WHEN A
THICK BLANKET IS PASSED ON THIS SHAFT, THE OUTER SURFACE OF THIS BLANKET IS EXPANDED AND
AFTER PASSING THE SHAFT IT COMPRESSES AND REVERSES TO ITS ORIGINAL SHAPE. IF A PIECE OF
COTTON CLOTH IS PASSED TIGHTLY WITH THE SURFACE OF THE BLANKET, IT IS FOUND THAT THE
CLOTH IS LONGER THAN THE BLANKET WHILE PASSING THE SHAFT AND AS A RESULT, THE CLOTH
COMPRESSES IN ORDER TO CONFORM THE COMPRESSED SURFACE OF THE BLANKET JUST AFTER
PASSING THE SHAFT BY REARRANGEMENT OF THE YARNS.
MAIN POINT OF SANFORIZING MACHINE:
SHRINKAGE CONTROL
HAND FEEL
GSM CONTROL
56. SANFORIZING MACHINES:
MACHINE PARAMETER:
PRESSURE OF RUBBER BLANKET 2-2.5
STEAM PRESSURE 2-3
HOT SHOE
CLIP EXPENDER ROLLER ENDLESS WOOLEN BLANKET
SKYER
HOT CYLINDER
WATER SPRAYING UNIT.
MAIN UNITS OF SANFORIZING MACHINE:
RUBBER BLANKET
HOT SHOE
CLIPEXPENDER ROLLER
ENDLESS WOOLEN BLANKET
SKYER
HOT CYLINDER
WATER SPRAYING UNIT
Machine name Company Origin
Sunforizeing Monfornts Germany
Sunforizeing Cibitex Italy
57. CONTROLLINGPOINT:
PRESSURE OF RUBBER BLANKET.
STEAM PRESSURE
FABRIC SPEED
SPEED OF ENDLESS WOOLEN BLANKET
WIDTH OF CLIP EXPENDER ROLLER
CALENDARING MACHINE:
CALENDARING IS A MECHANICAL FINISHING PROCESS. CALENDARING IS AN OPERATION TO IMPROVE FABRIC
AESTHETICS. IN THIS PROCESS FABRIC PASSES BETWEEN VERTICALLY HEAVILY LOADEDROLLERS AND WITH THE
HELP OF HEAT & PRESSURE; SOME PROPERTIES OF FABRIC E.G. LUSTER, SMOOTHNESS, BRIGHTNESS ETC. ARE
GENERATED ON THE FABRIC SURFACE.
OBJECTS OF CALENDARING:
1.TO UPGRADE THE FABRIC HAND AND TO IMPART A SMOOTH, SILKY TOUCH TO THE FABRIC.
2.TO COMPRESS THE FABRIC AND REDUCE ITS THICKNESS.
3.TO IMPROVE THE OPACITY OF THE FABRIC.
4.TO REDUCE THE AIR PERMEABILITY OF THE FABRIC BY CHANGING ITS POROSITY.
5.TO IMPART DIFFERENT DEGREE OF LUSTER TO THE FABRIC.
6.TO REDUCE THE YARN SLIPPAGE.
59. MACHINE:
MACHINE PARAMETER:
NO OF ROLLER - 03
A.STEEL ROLLER
B.RUBBER ROLLER
C.COTTON ROLLER
ROLLER PRESSURE - 25-30 MBAR
ROLLER TEMPERATURE -90°C
SPEED - 85-90 M/MIN
CONTROLLING POINT
ROLLER PRESSURE
STEAM PRESSURE
ROLLER TEMPERATURE
FABRIC SPEED
NO. OF ROLLER
Machine Name Company 0rigin
Calendareing Ramesh Italy
60. PEACH FINISH:
PEACH FINISH MACHINE IS THE PROCESS WHERE THE PEACH FABRIC BECOMES SMOOTHER. BY THIS
PROCESS ESPECIALLY FOR TWILL FABRIC THE DIAGONAL LINE BECOME LOWERED WITH THE
APPLICATION OF MICROSAND PAPER OR CARBON WIRE BRUSHING. IN AUTO TL THERE IS ONE PEACH
FINISH MACHINE. THE MACHINE DESCRIPTION IS GIVEN BELOW.
FIGURE LAFERS SUEDING MACHINE
61. PEACH FINISH MACHINE
(NOTE:PEACH FINISHING COMPLETE AFTER DYEING)
TYPES OF PEACH FINISH:
1.LIGHT PEACH
2.DIAMOND
3.CARBON PEACH
4.NORMAL PEACH
OBJECTIVE OF PEACH FINISH:
WIDE RANGE OF BRUSHING EFFECTS WHICH CAN BE REPLICATED THROUGH TIME.
COMPLETELY DEFECT-FREE FABRIC PROCESSING.
FLEXIBLE DRAWING-IN IN THE VARIOUS RIGHT-BACK SIDE COMBINATIONS.
HIGH PRODUCTION SPEED.
M/C Name Lafer (SPA)
Drum speed 90 m/mi
Origin Italy
No of r/r 24 (Positive- 12, Negative- 12)
Speed 20m/min (light peach)
Belt Pressure 2.6 bar
62. TYPE OF MACHINE:
1.SINGLE CYLINDER SUDEING MACHINE
2.MULTI-FUNCTION SUEDEING MACHINE
OTHER SPECIFICATION:
NO OF MOTOR: 08
WINCH SPEED: 10-30M/MIN
MACHINE SPEED: 50M/MIN (MAX)
DRUM SPEED: 30-35-50 RPM (MAX 70)
PILE ROLLER NO: 06
PILE MADE OF PLASTIC
PLAITER TENSION: 6KG
TAKER IN TENSION: 20KG
FABRIC RETURN DRIVER TENSION: 25KG
DRUM TENSION: 50KG
SPEED RANGE: 10-40 M/MIN
NO OF CYLINDER/DRUM:
2 FOR DOUBLE CYLINDER
1 FOR SINGLE CYLINDER
NO OF PIN ROLLER:
24 X 2 = 48
24 X 1= 24
CYLINDER R.P
.M (GENERAL): 100
63. SUEDING & EMERIZING:
IT IS ABLE TO SATISFY HARD-TO-APPRECIATE CUSTOMERS WITH THE EXPERIENCE OF MEMNUN
MAKINA ON SUEDING. ESPECIALLY FOR HOME TEXTILE MANUFACTURERS, IT HAS A VOICE IN THE
SECTOR WITH THE RESULTS IT OBTAINED IN THE HORIZONTAL SUEDING MACHINE IN UPHOLSTERY
AND DRAPERY FABRICS.
HE SUEDING MACHINE, WHICH IS PRODUCED UP TO 3600 MM ROLLER WIDTH, HAS BECOME
INDISPENSABLE FOR HOME TEXTILE MANUFACTURERS.
BRUSHING & DUST SUCTION UNIT:
EXTRA BRUSHING & DUST SUCTION UNIT ON EXIT TO CLEAN THE FABRIC BEFORE WINDING.
DUST SUCTION HOODS:
EACH ROLLER HAS GOT SEPERATE DUST SUCTION HOODS TO GET PERFECT CLEANING ON FABRIC
SURFACE DURING SUEDING PROCESS.
CARBON BRUSH
CERAMIC BRUSH
DIAMOND PAPER
EMERY PAPER
64. MAIN FUNCTIONS:
5 PIECES SUEDING ( EMERIZING ) ROLLERS
EACH ROLLER HAS INVERTER.THUS, SPEEDS AND DIRECTIONS OF EACH ROLLER IS ADJUSTABLE.
ROLLERS CAN BE USE IN FABRIC FLOW DIRECTION OR CONVERSELY AND WORKS UP TO 1400 RPM.
5 PIECES SUEDING ROLLERS ARE MOVING RIGHT AND LEFT DURING PROCESS.
INVERTER CONTROLLED FEEDING AND PULLING ROLLERS PROVIDES THE FABRIC ENTERS TO THE
MACHINE INA REQUIRED TENSION AND PROPERLY FROM BATCH WINDER OR PLAITER.
ADDITIONAL SPIRAL EXPANDERS ON ENTRY TO UNCURL OF SELVAGE.
TOUCH SCREEN OPERATOR PANEL TO CONTROL ALL THE PROCESS AND FUNCTIONS QUICKLY AND
EASILY.
SENSITIVE TENSION CONTROL WITH INVERTERS BETWEEN FEEDING AND PULLING ROLLERS.
ADDITIONAL BRUSHING AND DUST SUCTION UNIT ON EXIT TO MAKE A VERY CLEAN FABRIC SURFACE
BEFORE WINDING.
65. PROCESS SEQUENCE PEACH FINISH:
BATCHER
â
UPPER ROLLER
â
DRUM
â
AIR SUCKER
â
BRUSH ROLLER
â
BUSH CHAMBER
â
FOLDING
â
DELIVERY
66. INDUSTRY PRACTICAL USE OF PEACH FINISH MACHINE:
FABRIC INLET OF PEACH FINISH MACHINE:MERCERIZED FABRIC IS FEED IN THE INLET SECTION OF THE
PEACH FINISH MACHINE. HERE THE FABRIC IS PASSED OVER SOME ROLLER & GUIDER TO FEED INTO
THE BRUSHING ZONE.
BRUSHING UNIT OF PEACH FINISH MACHINE: IT CONTAIN 2 TO 6 ROLLER ACCORDING TO DESIGN.
FOR MICROSAND BRUSHING EACH ROLLER CONTAINS 24 ROLLERS WHICH MOVE FORWARD &
BACKWARD WITH THE SAME SPEED OF CONTAINING ROLLER. IN CARBON WIRE TYPE MACHINE ALL
THE ROLLER CONTAIN CARBON WIRE WHICH PERFORMED BRUSHING. THE ENTIRE ROLLER CAN
CONTROL INDIVIDUALLY. HERE BELT PRESSURE IS 2.6 BAR & DRUM PRESSURE IS 9 BAR, WHICH
DEPEND ON QUALITY OF FABRIC.
FABRIC OUTLET & BATCHING: AFTER THAT THE FABRIC BECOME SMOOTH THIS IS ROLLED ON
BATCHER FOR WASHING.
CONTROL PANEL OF PEACH FINISH MACHINE: FROM CONTROL PANEL ALL TYPES OF INSTRUCTION
CAN BE PROVIDE TO THE MACHINERY. THIS MACHINE HAS A FULL MANUAL CONTROL PANEL. THE
OPERATOR CONTROLS EVERY PROCESS BY CONTROL SWITCH.
PROCESS DEFINITION:THE PROCESS OF RECEIVING ACCURATE AMOUNT OF GRAY FABRIC FROM THE
PEACH FABRIC STORE & PILLING THEM ON A PALLET TO TRANSFER TO THE NEXT OPERATION IS
CALLED LAY-IN.
67. CHECKLIST BEFORE PRODUCTION:
WEAVING FAULT ( TANGLE WARP
, MISS PICK, STOP MARK, FUNGUS SPOT, OIL SPOT)
WEAVING DISPO
ORDER NO.
CONSTRUCTION
SELVEDGE CONDITION
PIECE TO PIECE WIDTH
SWATCH
BATCH NO.
OPERATION PROCEDURE:
ACCORDING TO THE âFABRIC LAYOUT INSTRUCTIONâ SHEET PRODUCING PERSONNEL RECEIVES THE
SPECIFIED QUANTITY OF FABRIC FROM THE STORES PERSONNEL.
PRODUCTION PERSONNEL ENSURE THAT FABRIC IS PILED âFACE TO FACEâ ON THE PROCESS FABRIC
LAY-OUT INSPECTION SHEET & THEN THIS PALLET OF FABRIC IS TRANSFERRED TO THE PREPARATION
DEPARTMENT.
PRODUCT QUALITY CHECK:
FABRIC WIDTH
FABRIC CONSTRUCTION
STICKER
QUANTITY
FABRIC FACE/BACK
SAMPLE TEST: FABRIC WIDTH, EPI, PPI, SHADE QTY, CONSTRUCTION, TENSILE STRENGTH, TEAR
68. RESPONSE TO EQUIPMENT FAULTS:
IF THE LAY-IN IS IN FACE TO BACK POSITION, THE LAY-IN PERSON SHOULD TAKE CORRECTIVE
ACTIONS.
M/C AREA CLEANING: MUST BE MUD, OIL, GREASE FREE.
FORMS & DOCUMENTS USED:
FABRIC LAY OUT INSTRUCTION SHEET FOR Y/D.
FABRIC LAY OUT INSTRUCTION SHEET FOR SOLID DYED NORMAL ORDER
PEACH QUALITY CONTROL CHECK:
HERE PEACH FABRICS ARE CHECKED BY THE OPERATIONAL TECHNIQUES AND ACTIVITIES THAT
ARE USED TO FULFILL REQUIREMENTS FOR QUALITY.
69. THE THINGS WHICH ARE CHECKED HERE ARE GIVEN BELOW:
TEAR AND TENSILE
GLM Ă 100 (CM)
G.S.M (G.S.M= )
WIDTH
OR, G.S.M =GLM/1.6
SHADE PER QUANTITY
LISTING CHECK
SELVEDGE CHECK
WEAVING CHECK
LINE MARK
LYCRA PROBLEM
NEPS PROBLEM
PPI, EPI AND WIDTH CHECK.
NOTE : FINISHED EPI, PPI ARE LESS THAN THE PEACH FABRIC.