Fabric & Garments Faults & it’s Remedeys

SOUTHEAS T UNIVERSITY Department of Textile Engineering Prepared By : Mazadul Hasan sheshir ID: 2010000400008 13th Batch Wet Processing Technology Email: mazadulhasan@yahoo.com Southeas

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SOUTHEAS T UNIVERSITY

Department of Textile Engineering

Project on

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Prepared By : Mazadul Hasan sheshir

ID: 2010000400008

13th Batch Wet Processing Technology Email:

mazadulhasan@yahoo.com Southeast University

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Submitted To

Dr Md Abul Kalam Azad

Part Time Faculty Visiting Professor Department of Textile Engineering

Southeast University

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• To know about the Fabric & garments faults with their

remedies

• To know about different types of fabric inspection.

• To know about different quality parameters of fabric,

different trims & accessories

• To know about the buyers AQL.

• To know about major or minor fabric faults & its

Objects of Project

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Fabric Faults/Defects:

Common Defects of Fabrics during manufacturing process includes back fabric seam impression, birds eye, bowing, broken colour pattern, colour out, colour seamrs, crease mark, drop stitching, dye streak in printing, hole, jerk in, knots, mixed yarn, mottled, needle line, open reed, pin holes, press off etc.

Fabric Faults are two types

1 Knitting Faults.

2 Weaving Faults.

Introduction

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Knitting Faults:

A defect in the knitted fabric is an abnormality, which spoils the aesthetics i.e the clean & uniform appearance of the fabric & effects the performance parameters, like; dimensional stability etc.

There are various types of defects, which occur in the Knitted fabrics of all types, caused by a variety of reasons The same type of defects may occur in the fabric, due to a variety of different causes e.g Drop Stitches, Spirality.

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Garments Faults/Defects:

Garments Defects are classified within the following categories:

Critical Defect: A serious defect that can cause harm or injury to the user

and/or result in a hazardous condition.

Major defects: A defect that falls to meet the mandatory regulations directly

affecting the usability, stability, safety and value of the merchandise or as specified by customer buyer are considered as major defects and are generally non repairable for example fabric hole, shading among panel, wrong measurement, foreign yarn, dye patches etc.

Minor Defects: A defect that does not adversely affect the usability of the

product but does consists of a deviation from the original sample, and may affect the sale of the product Some of these defects are due to workmanship

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Faults name Causes Remedy

1 Barre Caused by mixing yarn on feed

into machine Proper yearn selection and proper roller adjustment

2 Broken Colour Pattern Usually caused by color yarn out

of place on frame Proper adjustment of color and yarn.

Knitting Faults Causes & its Remedies

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3 Crease mark Its create when fabric passing

through squeeze rollers in the dyeing process Its mainly Occurs

in tubular knits fabric

Proper adjustment of squeeze rollers.

4 Hole caused by broken needle Change the needle.

5 Needle Line Caused by broken needle

forming distorted stitches Replace the needle

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6 Runner Usually caused by broken

needle Change the needle.

7 Slub (Knit fabric) Usually caused by a thick or

heavy place in yarn

Replace the yarn cone to a more uniform yarn cone.

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Dyeing, printing and finishing faults Causes and Its

remedy

Classification of Defects

 Major Defect

• A defect that, if conspicuous on the finished product, would cause the

item to be a second (A "second" is a garment with a conspicuous defect that affects the salability or serviceability of the item

 Minor Defect

• A defect is defined as minor Defect that is not likely to reduce the

Usability of the product, but nevertheless may negatively influence the sales.

• The minor defects can be untrimmed thread-ends, slight dirt in a

non-noticeable zone which can be removed, etc

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1 Barre Its horizontal shaded band across

the width of the fabric It causes

by the yarn mixing

proper yarn selection.

2 Bleeding improper dye selection or poor

dye fastness proper dye selection.

3 Crocking It is the rubbing off of the

color.

It may rub onto another fabric.

proper dye selection.

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4 Shading It is generally due to uneven

tension on the fabric.

To maintain the proper tension

5 Color variation in yarn Caused due to lack of agitation in

the dye bath proper agitation in the dye bath.

6 Crack or miss alignment in

transfer printed fabric Incomplete transfer of design from paper to fabric Proper transfer of design.

Shading Crack Color variation yarn

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7 Creasing Causes unleveled penetration of

dyes To use proper dyes and chemical or leveling agent.

8 Flushing/Wicking Caused due to Low viscosity of

print paste To use high viscosity of printing past

9 Decolorized patch on fabric Caused due to chemical spillage

on fabric Localized excess bleaching Localized excess enzyme wash.

To using spot cleaner.

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Garments faults Causes and its remedy

1 Misprints or off registration not properly cleaning of Printing

screens Properly Cleaning of printing screen.

2 Grease/ Oil / dirty stains Oil stains generally come from

sewing machines; machines such

as over lock and flat lock machines are more prone to have oil stains

To use spot cleaner chemical

3 Needle damage using the wrong needle Repairing or alter the garments

4 Open or broken seams improper handling of the cut piece

or machine Repairing or alter the garments.

Open or broken seam Misprint Grease/ oil/ dirty stain. Needle damage

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5 Broken stitch improper handling of cut pieces

or improper machine usage Repairing or alter the garments

6 Skipped or dropped stitches improper handling of cut pieces

or improper machine usage.

Repairing or alter the garments

7 Neck shape caused by defective cut pieces Repairing or alter the garments

or use proper cut piece of garments.

8 Sewing thread not matching To use improper sewing thread To use proper sewing thread.

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9 Seams not aligned at crossing

of seams improper handling of the cut piece Repairing or alter the garments 10.Stripes not matching from improper handling of cut

pieces.

Repairing or alter the garments

11.Misplaced label improper placement of labels

when sewing Repairing or alter the garments or proper placement of the label.

Seam not aligned at

crossing of seams Stripes not matching Misplaced label

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Metal Detection Machine:

Metal Detection machine is a machine which is detected the metal in the Garments When the Garments were full completed, then it is passes throw the finishing section Then the Garments were packaging and it is send the final inspection The final inspection process is Metal Detection The packed Garments were passes throw the Metal Detection machine When the machine was found the metals, then the red button is on Many metals such as, Pin, Needle, or any other metals.

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Conclusion

In Bangladesh the maximum dyeing industry are knit dyeing

Industry So these kinds of industries are often suffering by these

Faults which tend to not fulfill the target of production As a

result the production capacity of these industries falls significantly These are the common faults which I have tried to find out the

causes & their Remedies against them

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Thank U All

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