Quality Control | AQL (Acceptance Quality Level)

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Mustafizur Rahman Shanto

Author at Textile Study Center

Former Intern at Esquire knit composite ltd | Studied Apparel Engineering at Bangladesh University of Textiles | Went to Shahid Syed Nazrul Islam College - SSNIC,Mymensingh,Bangladesh

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Latest posts by Mustafizur Rahman Shanto (see all)

• Garment Finishing | Pressing | Flow Chart of Garment Finishing - May 9, 2020
• Quality Control | AQL (Acceptance Quality Level) - May 9, 2020
• Inspection | Steps in Garments Inspection - May 7, 2020

Quality Control | AQL (Acceptance Quality Level)

Quality Control

American Society for Quality Control ( ASQC ) defines quality as “A systematic approach to the search for excellence”. According to International Standard Organization ( ISO ), “Quality is the fulfillment of the specified requirements for a product or service”.

However, quality also means much more, they include:

1. The degree of excellence that an item possesses.
2. The best money can buy.
3. Meeting a specification
4. Not more than 1% defective a lot.
5. Not more than 1% defective a lot.
6. Quality is when the customers come back not the goods.

Quality of a garment refers to the product free from staining faults, sewing defects, fabric faults, size measurement faults, matching of color and stripe faults, cutting faults, etc.

Synonyms: Productivity , Cost reduction , Scheduled performance , sales , Customer satisfaction , Teamwork, and manymore.

Dimensions of quality:

1. Over dimensioned quality
2. Under dimensioned quality
3. Dimensioned quality

To achieve dimensioned quality, the organization’s staffs should have exact knowledge of the requirement profile of the products. This part can only be fulfilled if the information regarding the quality is freely exchanged between the various interfaces of the process.

AQL (Acceptance Quality Level) :

The (AQL) standard is based on Military Standard 105D (MIL-STD-105D). 

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Example of AQL defects:

Critical-AQL (0) %:

1. Incorrect country or origin /fiber composition.
2. Inconsistent labeling between UPC and outer box.
3. Needle/pin in product.
4. Rough sharp edges metal/plastic trim and composition.
5. Missing safely warning
6. Missing sewing label.
7. Chemical orders.

Major defect AQL (1—2) %:

1. Fabric flaw on presentation area and visible at area level
2. Snags at arm level
3. Shade variation
4. Soiling, dirty marks
5. Non-inclusion
6. Needle damage mark
7. Broken stitch
8. Cracking stitch
9. Button missing
10. Unraveling buttonhole
11. Fit measurement
12. Different between two side (shade variation)
13. Bar—tack out of range
14. Zip broken
15. Printing defect
16. Washing defect

Minor defect AQL (4%):

1. Poor thread matching
2. Poor thread join and bar tack
3. Thread not trimmed properly (poor trimming)
4. Missing trimming
5. Measurement outside tolerance (out of tolerance)
6. Stepped seams/hem
7. Tension on elastic
8. Poorly pressed
9. Creased by lining not even with foot pleat/dust

Uses of AQL:

In this system, sample is selected by random sampling technique from a lot. After proper inspection, the decision is taken whether the lot will be accepted or rejected. This is applicable for raw materials to finished products inspection as well as garments. This system is popular and used widely in the world trade. Acceptable sampling system consists of 5 parts:

1. Lot size
2. Sample size
3. AQL
4. Accept number
5. Reject number

Customer’s choice is given priority in this system. It is the customer who decides whether the goods will be inspected at AQL of 1.5%, 2.5% or soon. They generally give preference to the major defects ( such as oil mark, holes, torn, etc) i.e. which a tag lance seems to be odd for use. They also give the direction on sampling technique.

Garment Inspection system (AQL):

For AQL system which points are to inspect is given below:

Model descriptions

Fabrics:

Sewing (General description’s)

Styling

Accessories/Trims

Packing Division                                                                    

(921)

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Mustafizur Rahman Shanto

Author at Textile Study Center

Former Intern at Esquire knit composite ltd | Studied Apparel Engineering at Bangladesh University of Textiles | Went to Shahid Syed Nazrul Islam College - SSNIC,Mymensingh,Bangladesh

• Save

• Save

Latest posts by Mustafizur Rahman Shanto (see all)

• Garment Finishing | Pressing | Flow Chart of Garment Finishing - May 9, 2020
• Quality Control | AQL (Acceptance Quality Level) - May 9, 2020
• Inspection | Steps in Garments Inspection - May 7, 2020

• Save