The entire report has been prepared in the light of the best possible research at Active Composite Mills Ltd and Vintage Denim Ltd. We sincerely express our warm and deep appreciation and gratitude to our supervisor, Mohammad Abdul Baset, Assistant Professor, Department of Textile Engineering, Daffodil International University for his guidance and support in undertaking this research work. Mahbubul Haque, Head of Textile Engineering Department of Daffodil International University' for his kind assistance in completing our project and also to other faculty members and staff of 'TE Department of Daffodil International University'.
We would like to thank our entire coursemate in Daffodil International University who participated in this discussion while completing the coursework. The support and encouragement provided by, "Active Composite Mills Ltd and Vintage Denim Ltd." Stuffs & 'Arifuzzaman Head of IE Section in Active Composite Mills Ltd.' were very essential in the completion of this project, their guidance and encouragement played a key role in the planning and completion of this project. We hereby declare that this report was done under the supervision of Mohammad Abdul Baset, Assistant Professor, Department of Textiles, Daffodil International University.
This project is 'Study on quality control in sewing section' of Active Composite Mills Ltd. We have also included some final line inspection reports of Active Composite Mills Ltd and Vintage Denim Ltd.
Background of the Study
Objectives of the Study
Importance of the Study
Limitations of the Study
By using perfect size and shape of needle and needle tip without any defects. A copy of the End of The End Line Inspection Report is attached which we have obtained from the factory. Daffodil International University 19 A copy of the End of The End Line Inspection Report is attached which we have collected from the factory.
For this T-shirt sewing issue, we took a lot of data from Q.A.D for the real causes and cures for this type of guilt. For this trouser sewing error, we took a lot of information from Q.A.D for the actual causes and solutions for this type of error. For this MANS TR stitching error, we have taken a lot of information from Q.A.D for the actual causes and solutions of this type of error.
To enable a good quality system in enterprises, there must be sufficient quality personnel and the quality awareness of employees must be increased. Material quality must be controlled by performing input controls, while production quality must be assured by intermediate controls during production. The level of quality must be continuously improved and for this purpose training courses must be regularly prepared in the enterprise.
Defects in Apparel
Types of defects
Non-sewing defects
Sewing defects
Problems of stitch formation
If the stitches produced by the needle are not parallel or become curved with the stitch line, it is known as stair stitch. Incorrect unwinding of the thread from the package during sewing Twisting of the needle thread at the end of the thread package Twisting of the thread in the thread guide. Thread breakage on the needle Excessive thread heating Excessive hook heating Use of poor quality thread Remedies-.
The position of the wire guide should be 2.5 times higher than the position of the wire package. Foam pad should be used for the bottom of the wire package. The edges should be smooth and the needle should be changed as needed Finer threads should be used or a strong needle should be used. If the edges of the bobbin case, cutting eye and so on are sharper Incorrect assembly of the bobbin case.
Section of garment not covered with broken or open stitching. This problem is due to improper handling of the garment parts, wrong placement and timing between the needle and the hook or clasp, etc. For this, you need to run a test thread and cloth through the machine to remove excess oil.
Seam Puckering
Damage of fabric on seam line
By changing the size and shape of the needle so that less heat is generated for the needle.
Data Collection
Data Analysis
Attachment of sewing report
From our observation, I found that from 08:00-09:00 they check 135 pieces of garments and there were a total of 15 defects.
Attachment of sewing report
1st Highest Defects=Skip Stitch 24 Pieces 2nd Highest Defect= Broken Stitch=16 3rd Highest Defect=Raw Edge=12 Checking Total Pieces=1418. From our observation we discovered that from 08:00-09:00 they checked 143 pieces of clothing and there were a total of 20 defects. Here we found a total of 102 pieces of defective clothing where 95 pieces were changed and 7 pieces were rejected.
Attachment of sewing report
First Highest Defects= Broken Break = 16 pcs 2. Highest Defect = Raw Edge = 15 pcs 3. Highest Defect = Skip Stitch = 14 pcs Total Checked Pieces = 1435 pcs. From our observation, we found that from 08:00-09:00 they produced 155 pieces of clothing and had a total of 8 defects. Thus, a total of 1435 garments produced in our 10-hour observation by the 2QC operator.
Attachment of sewing report
We observed the 10th hour of production and found 24 uneven point sewing error, but all pieces are changing and found no reject pieces. On this day I also found different types of errors, the amount of errors is given below.
Attachment of sewing report
We observed the production of the 10th hour and found 24 irregular loop sewing errors, but all pieces are changing and no reject pieces were found.
Attachment of sewing report
We observed the 10th hour of production and found 23 Broken Stitch sewing defects, but all pieces are changed and no reject pieces were found.
Analysis Data Collection
When sewing, it is important to remember never to pull on the fabric; allow the fabric to be picked up by the sewing machine. When sewing, it is important to remember never to pull on the fabric; allow the fabric to be picked up by the sewing machine.
Comment
Sewing Defects Percentage Measurement
Different Sewing defects are shown in the pie chart
Conclusion
Broken stitch
Oil spot
Puckering
Report-1 on sewing section
Report-2 on sewing section
Report-3 on sewing section
Report-4 on sewing section
Report-5 on sewing section
Report-6 on sewing section
Pie chart of graphical view
