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


  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


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


  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


  • Size of cop
  • Faults in cop and spool


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


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


  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.

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




Oil stain


Chemical stain


Water spot


Fly yarn


Rub mark


Dye stain


Dirt stain


Rust stain


Yarn contamination


Inspect spot


Grease stain


Missing yarn


Drop stitch


Needle line


Uneven tension




Thick & thin place




Sinker mark


Birds eye


Wrong design


Pin holes


Barre mark



  • 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.

Thread Counting System And Their Application In Fabric Manufacturing

In fabric manufacturing process; thread selection is important to get proper GSM of a fabric. Generally, when consumption of a fabric is done then it is fixed that how many yarn will be use in a fabric production. After producing a fabric, thread per inch in warp and weft direction is measured to be confirming about the number of warp and weft yarn in a fabric.

Thread Counting System and Their Application: Various types of thread counting system are used for measure the number of threads in warp and weft direction of a fabric. Followings are the most used system of thread counting. They are-

  1. Counting glass/Pick glass: It is the most used method of thread counting. By this system, counting glass is placed on the fabric surface and thread is count manually by a pin. It can be used to count course per inch and Wales per inch of a knitted fabric. It is widely used method and very handy method.
  2. Traversing thread counter: Its measuring system is near similar to pick glass but it somewhat improved instrument where the counting pin is moved by means of a handle. It is used for measuring EPI, PPI, CPI and WPI of a fabric.
  3. Fabric dissection method: In this method fabric is cut for doing this measurement. It is a most authentic and reliable thread counting method. This counting method is used where the thread of the fabric is difficult to count by the others measuring system.
  4. Taper grating and line rating: This type of thread measuring system is used where-
  • The test results are required in a short time.
  • Where a large number of fabric samples are required to test in a very short time.
  • Where the exact test result is unimportant rather a good approximation is required.
  • Normally fashion designers use this type of instruments.

Thread counting system is an off line quality assurance system. We can measure the thread of the fabric by the above measuring system.