Tuesday, August 28, 2007

Paradigm Shift towards Process Planning & Control in Assuring Quality

This research paper is relevant to Indian Apparel manufacturing sector.

Designed under technical guidance of Mr. Jayashantha Perera

(Prevention Vs Detection)


Proposed Involvement of (Head Office) HO QA Team & Factory QA Team in assuring quality.

Sampling Stage

Present involvement of HO QA team at sampling stage is NIL

Tech pack analysis for all the new styles & provide input to PAM.

>> QA team has to analyze Techpack and prepare notes to contribute to PAM.

>> QA team has to analyze garments for all the processes it will be going through during the manufacturing process. (Ex: Fabric Inspection, Fabric Treatment, Cutting Process, Embroidery, Printing, Sewing, Trims & Accessories placement, Post Sewing Treatments, Pressing, Packing & Packaging).

>> QA team has to prepare guidelines/work instructions for each process and discuss at PAM.

>> QA team has to forecast Quality concerns that factory may come across for every stage of the manufacturing process.


Process Owner: HO-QA Team

Process Monitor: R & D Team

System Support: R & D Team


Pattern & Construction Changes History.

>> QA team has to analyze & understand the changes made in patterns at various stages of sampling process and the reasons contributing to it.

>> QA team has to analyze & understand the changes made in constructions & specification requirements at various stages of sampling process and the reasons contributing to it.

>> The above two points would give an insight to QA team on critical areas the customer is focusing on w.r.t garments.


Process Owner: HO-QA Team

Process Monitor: R & D Team

System Support: R & D Team


Pre-Production Stage (Batch setting Time)

Correlation of Fabric on defects – 10% random (4-Point). Warehouse Vs Factory.

>> Central warehouse has to send its inspection report to factory on issue of fabric. One copy of report to be given to Merchandiser.

>> Factory warehouse, on receipt of fabric from central warehouse, has to randomly inspect 10% of fabric received by 4-point inspection system.

>> Factory warehouse has to prepare a report for the above inspection conducted.

>> Factory QA & HO QA has to compare the results of the inspection of Factory & warehouse. Authenticate correctness of the reports & accuracy of the same. Keep Central Warehouse QA team in loop.

>> Upon rejections & deviations from the prescribed specification, seek approval on the same from the Customer via Merchandiser.


Process Owner: QA Team

Process Monitor: Factory QA Team/Central Warehouse/Merchandiser

System Support: Systems Team

Verification of Shade segregation for wash/Non-wash garments against given shade swatches.

>> Seek approved shade swatches from the customer via merchandiser.

>> Verify the shade segregation done by the factory for wash/Non-Wash garments against the available standard.

>> Guide factories on shade segregation so as to comply with the approved swatches.

>> Seek approval on deviation in the bulk lot against the available standard.


Process Owner: QA Team

Process Monitor: Factory QA Team/Central Warehouse/Merchandiser

System Support: Systems Team


Co-Ordinate with merchants & obtain approvals, washing & hand feel standards.

Trims Card approvals in co-ordination with merchandiser.

Approvals on Embroidery & Print Strike Off.

Test Approvals as specified by the buyer & follow-up status.

>> QA team has to seek testing requirements for the style & follow-up on the same with merchandiser.

>> QA team has to seek approved standards w.r.t colour standards, wash effect, embroidery, printing, hand feel, trims & accessories swatch card etc from the merchandiser to follow during the bulk production.

>> QA team has to make a checklist of all the tests & approvals to be required for the style & at various stages of manufacturing processes and for various embellishments involved in the garment.

>> QA team has to follow up with merchants periodically on the status of the approvals.

>> QA team has to co-ordinate between factory & merchants on updating status of approvals.


Process Owner: QA Team

Process Monitor: Factory QA Team/Merchandiser/Production Planning Team

System Support: Systems Team


Fusing Validation in compliance with specifications.

>> QA team has to educate production team on the use of fusing, areas fusing are required, way the fusing has to be cut, temperature & pressure to be set for fusing.


Process Owner: QA Team

Process Monitor: Factory QA Team/Production Team

System Support: Systems Team


Factory Marker verification against the HO & validation

>> QA team has to verify the Marker used by the factory in terms of efficiency & quality, compare & analyze it with marker prescribed by HO team.

>> QA team has to prescribe usage of the most efficient marker among the two & ensure the usage of the same.

>> If same style is split among factories, then markers of all the factories have to be compared & most efficient marker to be prescribed for use.


Process Owner: QA Team

Process Monitor: Factory QA Team/Production Team

System Support: Systems Team


Pattern Measurement Report

Clarification/Co-ordination on the measurement adjustment with the sample room

>> QA team has to verify & certify the correctness of the patterns w.r.t allowances required, constructions simplification & meeting the spec with in the tolerance.

>> QA team has to duly consider the Pre & Post sewing treatments on the fabric & garments while verifying & certifying the pattern. They have to check on the allowances required to meet the specifications after these processes.


Process Owner: QA Team

Process Monitor: Factory QA Team/Production Team

System Support: Systems Team


Audit on condition of M/cs set for new styles affecting the quality of garments.

>> QA team has to audit on the condition of the M/cs that would affect the productivity & quality of the garment along with the assistance of Maintenance & IE team.

>> A checklist w.r.t the same has to be prepared & periodically followed up during the bulk production, batch setting.

>> QA team has to advise maintenance team to follow the same during its preventive maintenance schedule.


Process Owner: Factory QA team

Process Monitor: HO QA Team/Maintenance Team

System Support: Systems Team


Trims Inspection whether carried out by warehouse – 10% random + checklist.

>> QA team has to create a process of trims inspection.


In-House Pre-Production Meetings.

Preparation of defect route for inline for every style

>> QA team has to arrange Pre-Production meetings for the new styles to be loaded in the factory.

>> Factory Production & Quality team to be involved in the meeting along with a PAM team member.

>> Minutes of the meeting (Action Plan) to be documented & later to be used as a checklist (Action Plan Checklist) during bulk production.

>> PAM notes to be discussed during the pre-production meeting.

>> Critical checkpoints where inline inspection would be required have to be decided.

>> Critical operations where mockups have to be posted have to be decided.


Recut Panels Analysis & reporting (1st Cut to 3rd Cut).

Verification on rejected panels

>> QA Team to analyze & monitor recut % day wise.

>> QA Team to evaluate the reason for recutting & work on action plan for immediate implementation. Upon implementation recut % to gradually reduce on comparison to previous day.

>> QA team to randomly, periodically, evaluates the panels inspected by QC & certifies the correctness of the decision taken.

>> QA teams to monitor Recut % for every style.


Audit the condition of the pattern used for marker drawing

>> Upon usage there will be wear & tear in the pattern, this has to be regularly monitored to ensure cutting quality.

>> If the patterns are worn out, it has to be replicated & cross verified against the requirements.

>> Worn out patterns are to be destroyed after confirmation on the correctness of the specifications.


Other Tools

  1. Verification on Accuracy of the method used for shrinkage test on fabric
  2. Random audit the accuracy of marker drawing
  3. Random audit the cutting accuracy of cut bundles understanding of 1/8 “ tolerance by cutting QC
  4. Audit the condition of the equipment (rough edges) used for sorting of cut bundles
  5. Unacceptable/Minor fabric defect swatches be provided or available at cutting
  6. Widthwise segregation of fabric rolls
  7. Operation mock-ups are hung on m/cs with specifications and signature
  8. Pilot lot review & recommendations
  9. Inline – Flag System
  10. Implementation of SPC & SQC Charts
  11. Audit on End line inspectors/products
  12. Verification of Embroidery, Print Placement
  13. Verification of Placements of Trims & Accessories
  14. Training of End Line QCs on clockwise inspection & major/minor classification
  15. Audit the condition of the equipment (sharp edges) used in sewing batches
  16. After wash inspection & analysis of correct analysis of defects
  17. Pressing & button Inspection – SPC (Attributes)
  18. Monitoring the unshippables due to washing
  19. Feedback to washing plant on washing defects
  20. Verification of packing requirements & packaging.
  21. Provision of feedback FQC defects to end line checkers & educate them
  22. FQC Inspection
  23. Auditing of Products as per AQL
  24. Final Measurement report
  25. Final Audit report in terms of Presentation (Dummy fit & evaluation of garments)
  26. Pareto analysis on defects at every stage.
  27. DHU% level at all stages of the process and correlation between them.
  28. Analysis of Inline, End-Line & Final SPC & audit reports & corrective action
  29. Preservation of products from stains/oil marks and fabric flaws etc.
  30. Evaluation of each QC’s performance as per accuracy & output
  31. Individual garments defects identification stickers at end line and finishing stages
  32. Audit on adequacy of lighting level at inspection & Operation areas.
  33. Rotation of End line auditors
  34. Acceptance/Revised tolerance level