Category Archives: Quality Control (Q.C)

Quality Test In Different Section Of Jute Mills || Raw Jute To Finishing

Quality is must for getting good price of the finished goods. So, it is important to ensure the quality of the finished goods. This quality should be ensured from the beginning of the production. In jute mills, quality test should be started form the jute section to the finishing section. In the intermediate process it is also important to check the quality of the product. It is an online quality control. The quality section should give proper suggestion the concern about the product quality. By this way, a complete quality product could be gained.

Quality Test in Different Section of Jute Mills: Here, I listed most of the quality test which is required to carry out during processing. They are-

Jute:

  • Jute grading
  • Moisture (MR%) in jute
  • Weight of Morah and its roots equality

Batching:

  1. Percentage of emulsion composition
  2. Stability of emulsion
  3. Application percentage of emulsion on jute
  4. Size of pile
  5. Maturity of pile
  6. Temperature of pile

Preparing:

  • Dollop weight check
  • Weight of sliver
  • CV% of sliver
  • Moisture in sliver

Spinning:

  1. Count of yarn test
  2. Yarn strength
  3. Twist of yarn
  4. Ends down per minutes
  5. Spinning random study
  6. Moisture % in yarn

Winding:

  • Size of cop
  • Faults in cop and spool

Beaming:

  1. Number of yarn for specific quality of cloth
  2. Application % of starch
  3. Moisture MR% test

Weaving:

  • Fault of cloth
  • Cloth strength
  • Weight of cloth (light or heavy)
  • Measurement of cloth ( length and width)
  • Oil in cloth
  • Moisture MR% in cloth

Finishing:

  1. Scale check
  2. Fault in bag
  3. Bag measurement
  4. Sewing number in bag
  5. Bag weight (light or heavy)
  6. Weight of bale (light or heavy)
  7. Marking check
  8. Bale survey

So, that’s all about the quality test in jute mills.

Machineries Used For Quality Control Department In Jute Mills || Quality Assurance Instruments/Tester

In jute mills, different types of test are performed during production. Different test is carried out by the Q.C officer in a jute mills. Different test is done by different tester. By taking the test, one can be assured by the quality of the product. After that, one can take decision about the quality of the product.

Machineries Used For Quality Control Department In Jute Mills: In production unit, test of the product is must for confirming the quality of the products. Here, I have listed some machineries or tester name which is used in jute mills for quality control.

  • Auto Mixture Machine
  • Beaker Measuring Flask
  • Balance Physical & Chemical Machine
  • Calculator
  • Cloth Tensile Strength Tester
  • Heater
  • Hot Plate
  • Moisture Meter
  • Measuring Cylinder
  • Microscope
  • Meter Scale
  • Oil Extraction Machine
  • Oven Tester Dry Machine
  • pH Meter
  • Slide Calipers
  • Screw Gauge
  • Scissor
  • Sliver irregularity Tester
  • Stove
  • Sprit Lamp
  • Stop Watch
  • Techo Meter
  • Twist Tester
  • Yarn Reeling Machine
  • Yarn Tensile Strength Tester

So, that’s all about the machineries of quality control department of a jute mills.

On Line Quality Assurance System || Types Of On Line Quality Control System

There are two types of quality assurance system; one is off line quality assurance system and another is off line quality assurance system.

Online Quality Assurance System: Online quality control comprises with the raw material quality control and the process control. On line quality control cosist of –

  • Raw Material Control
  • Process Control

Raw Material Control: As the quality product depends on the raw material quality so we must be provided with the best quality raw material with an economical consideration.

  • The fabric must be without fault, with proper absorbency, whiteness as per requirement of the subsequent process. The Greige inspection report gives the condition of the raw fabric. The information found on a greige report is given below-

Penalty point legends

Code

Hole

H

Oil stain

OS

Chemical stain

CS

Water spot

WS

Fly yarn

FY

Rub mark

R

Dye stain

DS

Dirt stain

D

Rust stain

RS

Yarn contamination

YC

Inspect spot

IS

Grease stain

GS

Missing yarn

MY

Drop stitch

DS

Needle line

NL

Uneven tension

UT

Stripe

S

Thick & thin place

TT

Slubs

Sl

Sinker mark

SM

Birds eye

BE

Wrong design

WD

Pin holes

PH

Barre mark

BM

 

  • The chemical should be of known concentration with a higher degree of purity.
  • The entire machine should be higher precisions.

Process Control: The method chosen for the process must be provided with the necessary accurate parameters. The specific gravity, water level, residual hydrogen per oxide etc. at each stage should checked.

On line quality control is a system which is performed during manufacturing. During this checking, if any faults are found in materials, one should take necessary steps to reduce the fault or to stop the process and take necessary steps to recover it.

So, be careful during quality checking.