SEWING

Different Types of Sewing Defects with Root Causes, CAP, and PAP | Part – 1

Introduction: Sewing is the most important part to shape a garment. The different parts of garments join together by sewing in the garments sewing section. But it is more challenging to produce a quality-full garment. To produce a quality-full garment, defects are the only things to disturb our production. 

So, when we produce garments, it needs to ensure that our garments are defect-free as well as very good quality-full. 

In this post, I am going to discuss some defects that gradually happen during sewing time;

1. Broken Stitch: During sewing time, threads are broken due to some machine setup problem and it calls Broken Stitch.

Name of DefectRoot CauseCorrective Action PlanPreventive Action Plan
Broken StitchDue to Trimming problemOperator should carefull about TrimmingWe Train up our operator about proper Trimming
Due to thread stability problemwe have to carefully check thread stabilityAlert to be check Thread Stability

Table – 1: Broken Stitch Root Causes, CAP, And PAP.


2. Skip Stitch: Due to improper needle and looper action, sometimes looper threads missed in stitch. This stitch is known as skip stitch.

Name of DefectRoot CauseCorrective Action PlanPreventive Action Plan
Skip StitchNeedle ProbelmChange Needle Randomly After 2 HrsTrain Up the Operator
Due to improper machine adjust problemMechanic properly setup to avoid skip stitchWe aware our
operator about how to avoid skip stitch

Table – 2: Skip Stitch Root Causes, CAP, And PAP.

3. Uneven / Wavy Stitch: When the stitch line is not straight or properly curve, it calls uneven/wavy stitch.

Name of DefectRoot CauseCorrective Action PlanPreventive Action Plan
Uneven / Wavy StitchOperator careless sewingOperator should carefull about thier sewing operationWe should train up our operator about proper sewing process

Table – 3: Uneven/wavy stitch Root Causes, CAP, And PAP.

4. Cracked Stitch: Sometimes stitches are broken due to less elasticity in the seam line. This broken stitch calls a cracked stitch.

Name of DefectRoot CauseCorrective Action PlanPreventive Action Plan
Cracked StitchImproper machine adjustmentStop the machine & ensure proper machine adjustmentMechanics must check the machine condition before strating sewing
Due to less thread stabilityOperator have to carefully check thread stability after sewing by stressing seam lineWe should train up our operator how to check seam elasticity

Table – 4: Cracked stitch Root Causes, CAP, And PAP.

5. Open Seam: When two parts of the fabric are not sewing properly, an Open seam has occurred.

Name of DefectRoot CauseCorrective Action PlanPreventive Action Plan
Open SeamOperator Handling ProblemOperator shall be work carefullyWe are training our operator about how to work in a proper way
Operator didn’t follow M/C guide in properlythey will be follow the M/C guide properly and they ensure proper seam lineWe are training our operator about how to proper use of machine guide

Table – 5: Open seam Root Causes, CAP, And PAP.

Defects are very common in the garments sector. You can’t remove the defect permanently, but we can reduce these defects by taking some action. In every section and situation, you face new defects or problems, and as a quality engineer, you have to prevent all of these with technically.

Facebook Comments
Tags
Show More
Close