Sewing defects in garments

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Sewing defects in garments-What are defects?

1. Sewing defects in garments. Defect is all the features of a product that ruin its usability or marketability.

2. Defect or error is the presence of an unnecessary feature in the product or the absence of a required feature or distortion or incorrect presence of the required feature. Dirt, holes, incorrect stitching, not sewing-like design, etc. are the defects of the product.

Sewing defects in garments-Types of defects:

Defects are mainly of two types, e.g.

1. Non-sewing defects

2. Sewing defects

Sewing Defect

1. Non-sewing defects-Sewing defects in garments:

Non-sewing defects are seen for the following reasons:

(A) For Defective Fabric.

(B) Defect due to cutting of fabric, lining, interlining by the wrong pattern.

(C) Defects due to wrong marking, spreading, cutting, bundling, etc.

(D) Defects occurring due to handling, for instance, spoilage, staining, etc.

(E) Defects occurring due to oil marks etc.

(F) Defects due to wrong ironing, folding, packing, packaging, etc.

2. Sewing defects:

(A) Defects due to the problem of stitch formation. Examples of such errors are slipped or skipped.

(B) Defects due to fabric distortion. Such packaging is an example of this kind of error.

(C) Defects due to fabric damage along the stitch line. For example, piercing a cloth with a blunt needle is an example of this error.

Errors caused by stitch organization problems:

1. Slipped / skipped stitch

2. Staggered stitch

3. Unbalanced stitch

4. Variable stitch density

5. Thread breakage

6. Puckering

Some errors were observed during sewing organization. The errors were discussed below:

1. Slipped or skipped stitches:

In-plane machines, bobbin hooks, and over locks, etc. In machines, the super (lopper) cannot hold the thread loop attached to the tip of the needle, then a hole is missed or this error occurs. This type of defect is called slipped stitch. In the case of topstitch, it spoils the appearance of the dress. Cracks or gaps are formed in the sewing joints. In the case of chain stitches, this error can lead to catastrophic damage.

The reasons for slipped or skipped stitches are given below:

(A) Due to the yarn – all the yarns cannot make a big loop in the needle thread continuously.

(B) Due to uneven needle.

(C) Due to the average similarity of yarn and needle size.

(D) Due to excess pressure on the yarn.

(E) Due to poor pressure of pressure fit and large throat plate and poor handling of fabric.

2. Staggered stitches:

It is caused by the yarns in the fabric deflecting the needle away from a straight line on a hard, thick woven fabric.

3. Unbalanced stitches:

Thread tensions generally cause unbalanced stitches and give a poor appearance.

4. Variable stitch density:

It occurs, especially, with sticky or slippery materials and also when material feeding is uneven.

5. Thread breakage:

Needle and bobbin or lopper threads break mainly due to metal surfaces being chipped or otherwise damaged and then causing damage to the thread. The guard over the hook in a plain machine or the needle hole in the throat plate can become chipped as a result of needle deflection. This causes thread breakage. Thread breakage is a time-consuming problem arresting productivity.

6. Puckering:

Squeezing along the sewing of the fabric is called puckering. Packing is one of the most common defects in sewing. Observing the packing, it is seen that the middle cloth of the stitch is wrinkled. This is why yarn is seen as the cause of puckering. In addition to the tension or pressure on the yarn, there are many reasons for puckering, which are shown below

1. Fabric construction

2. Seam construction

3. Needle size

4. Material feeding problem

5. Wrong thread tensions

6. Type of thread

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