Home / QC/QA / How to Work with Yarn Examining Board?
How to Work with Yarn Examining Board

How to Work with Yarn Examining Board?

Yarn Examining Board

Yarn Examining board is used for visual inspection of textile yarn like naps, thick and thin places.

Yarn Examining Board Specification

  • Product Category: QC Yarn
  • Machine Category: Yarn
  • Product Name: Yarn examining board.
  • Product Model:According to Manufacturer
  • Product Class: New
  • Origin: Made in China / America
  • Brand/ Manufacturer: Name of Manufacturer
  • Agent in Bangladesh: No/Yes
  • Power:380v, AC220V±10%  50HZ.Power:55W
  • Temperature:Normal
  • Certification:SGS/Others
  • Production Capacity:NA
  • Density of reeling:7,9,11,15,20/cm 20/45mm
  • Pressing by grade.,Seven yarn grade: 7,9,13,15,19/cm and GB/T399 standard density
  • Rotate speed of show board:350r/min with staples speed adjustment

Yarn Mixing

  • Average Micronaire of mixing should be same for entire lot & difference in average micronaire of different mixings of same lot should not be more than 0.1.
  • The micronaire C.V% of a mixing should be less than 10%.
  • The micronaire Range should be same.
  • Cottons with two different origins should not be mixed.
  • Cottons with too wide micronaire range should not be mixed.
  • Cottons with too wide reflectance value (Rd) and Yellowness value (+b) should not be mixed.
  • Immature fibre content should be lowest as it affects dyeing & results in white-specks.
  • If automatic bale openers are used, bale lay downs should be done properly, so that different micronaire bales & colours are getting mixed up homogeneously even if small quantity is being checked.
  • If manual mixing is carried out, bales should be arranged & mixed properly so that different micronaire bales & colours are getting mixed up homogeneously even if small quantity is being checked.
  • For manual mixing, tuft size should be as low as 10gm.
  • If contaminated cottons are used, the best way is to open bales into small tufts & segregate contaminants. There are mills that employ around 60-80 persons to pick up contamination from a mixing of 20tons.
  • Japanese insist on mixing at least 36 bales for one mixing to avoid Barre problem.

Fabric Inspection

Number of inspection tables: 02

Number of operators on each inspection table

(For Loading/Checking/Unloading):02

Light levels for Fabric Inspection machine

Exmaple Exmaple 1
Present Standard Present Standard
800-1000 750-1000 850-1000 750-1000
lux lux lux Lux

Inspection Equipment

The fabric examining machine with variable speed control, overhead light (daylight bulbs) and yardage counter. The machine must be clean with no oil and sharp edges to damage the fabric.

How much fabric to inspect

The garment making factory should inspect 10% of rolls from each delivery at random this should include all colors and dyelots within a delivery. If the results show a high fault rate, then an additional 15% rolls should be inspected. If these fail, the delivery is either rejected or 100% inspected.

Procedure

At the beginning of each roll, a 6” full cutting should be taken as a color reference and checked for side-to-side and side-to-center shading.

This is labeled with fabric reference number or name, batch number, piece number, color number, color name and date.

Width of the fabric between the stenter pins must be measured and compared with the given minimum usable width.

Each roll checked must be stopped at least 3 times during inspection (beginning, middle, end). At these points, side-to-side and side-to-center shading should be assessed.

Side-to-end shading must be checked by comparing the full width cutting to a point in the roll. Also the cutable width (between the stenter pins) should be measured.

The cutable width should be recorded on the inspection report, as should any color shading detected.

Check the fabric length stated on piece ticket against the actual length of roll for variance. Record both the values.

Allotment of points on 4-point system

            Flaws Points given
Up to 3″ 1
3″-6″ 2
6″-9″ 3
More than 9″ 4

 

Points/yards2=Actual points counted x     36”      x 100

Actual roll length       Actual width

Common Defects in various points scheme

1 Point 2 Point 3 Point 4 Point
Foreign Yarn Weaving faults Weft Bar Thick Yarn
Slub Foreign Yarn Thick Yarn Hole
Spot Thick Yarn Weaving Fault Shade Bar
Weaving Fault Missing Yarn Missing Bar
Dyeing Effect Shade Bar Missing Yarn
Naps Thick Yarn

Apart from these defects, the fabric is also tested for shrinkage, color fastness, and the shade variation (through light box), within a roll and between two rolls.

Fabric:

1. Are all colours affected? If not which ones are?
2. How many points did the 4pt. inspection come up to?
3. Is/are the sample(s) sent representing the:
– worst
– average
– best
4. Is/are the cutting(s) sent taken from the:
– beginning
– middle
– end
of the roll ?
5. Are all rolls or what batches are affected?
6. Is every yard affected or how often do they repeat?
7. Are the faults of this cutting typical for size & severity?
8. Based on your experience do you think the fabric is cuttable?
9. Please advise estimated loss (e.g. in percent).

In case of fabric faults please cut & send 1yd (not from the first 5yds) of 10% of the rolls but no more than 7.
In case of shading please cut & send 20cm x full width (not from the first 5yds) of every roll.
Garments:
1. Are all colours affected?
2. Is the shirt from bulk production?
3. Is it representing the:
– worst
– average
– best
of production ?
4. How many shirts are affected (e.g. percent)?
5. Can these faults be avoided on collar, cuff & A zone?
6. In case of shading is this caused by:
– roll to roll shading and therefore mix of panels
– shading within the same roll
– shading of interlining

More Machine List

  • NEEDLE DETECTOR MACHINE
  • FIRE PUMP MACHINE
  • HI SPEED MAYA COMPUTERISE EMBRODERY
  • MOTOR POWER SAVING MACHINE
  • ELECTRONIC LOOKSTITCH BUTTON/SEWING HOLDER
  • AUTOMATIC COLLAR BLOCKING MACHINE
  • SPOT LIGHTS LAMP HEAT EXCHANFE
  • HYDROLIC EXTRACTOR + BLOWN LINE MACHINE
  • AIR DRYER COMPRESSED
  • CUTTING MARK MACHINE
  • TRIMMING AND TURNING MACHINE
  • CURING OVEN MACHAINE BAG/HANGER MACKING
  • DRYERS MACHINE
  • STEAM IRON INDUSTRIAL
  • FUSING PRESS MACHINE
  • MACHINE FINGERLES
  • SINGLE FACER & FLUTE
  • AUTOMATIC CUFF BLOCKING MACHINE
  • SOFTNER TREATMENT PLANT
  • SPAN FIXING MACHINE
  • AUTOMATIC DOUBLE BUCK FUSING PRESS MACHINE
  • DRILL MACHIE CLOTH
  • INSPECTION MACHINE CLOTH
  • FOLDING MACHINE
  • TOP TAPE FEEDER
  • INDUSTRIAL EXHAUST FAN
  • CROSS LASER LIGHT
  • STRAIGHT LASER LIGHT
  • NEEDLE DETECTOR MACHINE
  • FIRE PUMP MACHINE
  • HI SPEED MAYA COMPUTERISE EMBRODERY
  • MOTOR POWER SAVING MACHINE
  • ELECTRONIC LOOKSTITCH BUTTON/SEWING HOLDER
  • CLOTH DRYER + SLITTING MACHINE
  • SPOT LIGHTFAN LAMP + FAN HEAT EXCHANFE
  • HYDROLIC EXTRACTOR + BLOWN LINE MACHINE
  • AIR DRYER COMPRESSED
  • GENERATOR SET
  • SPARE PARTS OF STEAM BOILER
  • CURING OVEN MACHAINE BAG/HANGER MACKING
  • DRYERS MACHINE
  • STEAM IRON INDUSTRIAL
  • FUSING PRESS MACHINE
  • MACHINE FINGERLES
  • SINGLE FACER & FLUTE
  • WINDING/REELING MACHINE
  • SOFTNER TREATMENT PLANT
  • SPAN FIXING MACHINE
  • TRIMMING MACHINE THREAD, WIRE CRINKLE
  • DRILL MACHIE CLOTH
  • INSPECTION MACHINE CLOTH
  • FOLDING MACHINE
  • STRAPPING MACHINE
  • INDUSTRIAL EXHAUST FAN
  • BOLTSEAL/CABLE CONTRAINER LOCK
  • NEEDLE DETECTOR MACHINE
  • FIRE PUMP MACHINE
  • HI SPEED MAYA COMPUTERISE EMBRODERY
  • MOTOR POWER SAVING MACHINE
  • ELECTRONIC LOOKSTITCH BUTTON/SEWING HOLDER
  • CLOTH DRYER + SLITTING MACHINE
  • SPOT LIGHTS LAMP HEAT EXCHANFE
  • HYDROLIC EXTRACTOR + BLOWN LINE MACHINE
  • AIR DRYER COMPRESSED
  • GENERATOR SET
  • SPARE PARTS OF STEAM BOILER
  • CURING OVEN MACHAINE BAG/HANGER MACKING
  • DRYERS MACHINE
  • STEAM IRON INDUSTRIAL
  • FUSING PRESS MACHINE
  • MACHINE FINGERLES
  • SINGLE FACER & FLUTE
  • WINDING/REELING MACHINE
  • SOFTNER TREATMENT PLANT
  • SPAN FIXING MACHINE
  • TRIMMING MACHINE THREAD, WIRE CRINKLE
  • DRILL MACHIE CLOTH
  • INSPECTION MACHINE CLOTH
  • FOLDING MACHINE
  • STRAPPING MACHINE
  • INDUSTRIAL EXHAUST FAN
  • BOLTSEAL/CABLE CONTRAINER LOCK
  • NEEDLE DETECTOR MACHINE
  • FIRE PUMP MACHINE
  • HI SPEED MAYA COMPUTERISE EMBRODERY
  • MOTOR POWER SAVING MACHINE
  • ELECTRONIC LOOKSTITCH BUTTON/SEWING HOLDER
  • CLOTH DRYER + SLITTING MACHINE
  • SPOT LIGHTFAN LAMP + FAN HEAT EXCHANFE
  • HYDROLIC EXTRACTOR + BLOWN LINE MACHINE
  • AIR DRYER COMPRESSED
  • GENERATOR SET
  • SPARE PARTS OF STEAM BOILER
  • CURING OVEN MACHAINE BAG/HANGER MACKING
  • DRYERS MACHINE
  • STEAM IRON INDUSTRIAL
  • FUSING PRESS MACHINE
  • MACHINE FINGERLES
  • SINGLE FACER & FLUTE
  • WINDING/REELING MACHINE
  • SOFTNER TREATMENT PLANT
  • SPAN FIXING MACHINE
  • TRIMMING MACHINE THREAD, WIRE CRINKLE
  • DRILL MACHIE CLOTH
  • INSPECTION MACHINE CLOTH
  • FOLDING MACHINE
  • STRAPPING MACHINE
  • INDUSTRIAL EXHAUST FAN
  • BOLTSEAL/CABLE CONTRAINER LOCK
  • AUTOMATIC SPREADING MACHINE WITH ACCESSORIS
  • FIRE PUMP MACHINE
  • HI SPEED MAYA COMPUTERISE EMBRODERY
  • MOTOR POWER SAVING MACHINE
  • ELECTRONIC LOOKSTITCH BUTTON/SEWING HOLDER
  • CLOTH DRYER + SLITTING MACHINE
  • SPOT LIGHTFAN LAMP HEAT EXCHANFE
  • HYDROLIC EXTRACTOR + BLOWN LINE MACHINE
  • AIR DRYER COMPRESSED
  • GENERATOR SET
  • SPARE PARTS OF STEAM BOILER
  • SNAP BUTTON MACHAINE
  • STEAM IRON INDUSTRIAL
  • MACHINE FINGERLES
  • TRIMMING MACHINE THREAD, WIRE CRINKLE
  • FOLDING MACHINE
  • BOLTSEAL/CABLE CONTRAINER LOCK
  • NEEDLE DETECTOR MACHINE
  • NEEDLE DETECTOR MACHINE
  • FIRE PUMP MACHINE
  • HI SPEED MAYA COMPUTERISE EMBRODERY
  • MOTOR POWER SAVING MACHINE
  • ELECTRONIC LOOKSTITCH BUTTON/SEWING HOLDER
  • CLOTH DRYER + SLITTING MACHINE
  • SPOT LIGHTS LAMP HEAT EXCHANFE
  • HYDROLIC EXTRACTOR + BLOWN LINE MACHINE
  • AIR DRYER COMPRESSED
  • GENERATOR SET
  • SPARE PARTS OF STEAM BOILER
  • CURING OVEN MACHAINE BAG/HANGER MACKING
  • DRYERS MACHINE
  • STEAM IRON INDUSTRIAL
  • FUSING PRESS MACHINE
  • MACHINE FINGERLES
  • CLOTH CUTTING MACHINE
  • WINDING/REELING MACHINE
  • SOFTNER TREATMENT PLANT
  • SPAN FIXING MACHINE
  • TRIMMING MACHINE THREAD, WIRE CRINKLE
  • DRILL MACHIE CLOTH
  • INSPECTION MACHINE CLOTH
  • FOLDING MACHINE
  • STRAPPING MACHINE
  • INDUSTRIAL EXHAUST FAN
  • BOLTSEAL/CABLE CONTRAINER LOCK
  • MULTI NEEDLE DOUBLE CHAIN STITCH MACHINE

 

 

 

 

About Engr. Kh. Mashiur Rahman

He is Garment Automation Technologist and Editor in Chief of Autogarment. He is certified Echotech Garment CAD Professional-China, Aptech-India, NCC-UK and B.Sc. in CIS- London Metropolitan University, M.Sc. in ICT-UITS. He is working as a Successful Digital Marketer and Search Engine Specialist in RMG sector during 2005 to till now. Contact him- apparelsoftware@gmail.com

Similar Post

What is Pressley Strength Tester?

What is Pressley Strength Tester?

Pressley strength tester Pressley strength tester is used to determine the bundle of fiber strength …

Leave a Reply

Your email address will not be published. Required fields are marked *