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All Journal Sainteks: Jurnal Sain dan Teknik
Afriani Kusumadewi
Universitas Insan Cendekia Mandiri
Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering

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Journal : Sainteks: Jurnal Sain dan Teknik

 1 
Pengaruh Jumlah Putus Benang Terhadap Quality Control Jahitan di CV Batara Apparel Afriani Kusumadewi; Filly Pravitasari
Sainteks: Jurnal Sain dan Teknik Vol 3 No 1 (2021): Maret
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v3i1.295

Abstract

One of the problems that related to quality and often occurs in the sewing process at CV Batara Apparel is that there are frequent thread break problems. Termination problems that occur are caused by an error during the thread installation process that does not pass through the needle bar hole and the thread is directly passed through the needle. This results in defects in stitches such as broken stitches. In order to solve the thread break problem caused by an error during the thread installation process that does not pass through the needle bar hole, it can be overcome by implementing SOP (Standard Operational Procedure) on proper and correct machine usage procedures, briefing supervisors with the production manager so that the problems occurs when production takes place can be handled properly. In addition, the implementation of regular maintenance schedules can also solve the thread break problems that occur. Keywords: thread break, loose stitches, quality control, SOP
Pengaruh Penyetelan Squeezing Roll Pada Mesin Sizing Terhadap Kekuatan Benang Filly Pravitasari; Afriani Kusumadewi
Sainteks: Jurnal Sain dan Teknik Vol 3 No 1 (2021): Maret
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v3i1.296

Abstract

The process of applying starch to the warp yarn in order to increase the weaving power of the warp yarn in the presence of a starch layer, is expected to increase the strength of the yarn and reduce the yarn hairs. One of the factors that influence the sizing process is the amount of pressure in the squeezing roll. In this process, the sizing machine uses a double size box and each size box has 2 (two) squeezing rolls. The material used is Combed Ne 40 yarn with construction ,which is the amount of tetal or the density of the yarn with the construction included in the tetal of the dense warp yarn. The method used by comparing the pressure of squeezing roll process 1 and process 2. In the first process, the squeezing roll 1 is set at 3 kN and squeezing roll 2 is 3.5 kN, while in the second sizing process, the squeezing roll 1 is set at 4 kN and squeezing roll 2 for 5kN. After the experimental process was carried out, the starch warp yarn strength was obtained which was higher, namely 351.93gr and compared to process 2 which was 345.84 gr. The higher from the strength of the starchy yarn, can make it better for weaving process.
Pengaruh Variasi Timing Opening Angle Terhadap Jumlah Weft Stop pada Pertenunan Kain dengan Anyaman Keper 2/1 1 di Mesin Air Jet Loom Filly Pravitasari; Afriani Kusumadewi
Sainteks: Jurnal Sain dan Teknik Vol 3 No 2 (2021): September
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v3i2.334

Abstract

In the weaving process, the process of launching the weft yarn is an important thing to consider. One of the obstacles that often occurs in the process of launching feed using a water jet loom machine is the amount of feed stuck (weft stop). The cause of the weft stop is because the process of opening the warp mouth is not clean and the weft thread slides inappropriately or too fast so that the warp mouth is in a small condition. Variations in timing opening angle of 700, 800 and 900 determine the size of the warp mouth opening, the time the weft will slide and the time the weft will arrive. From the three variations of the timing opening angle, the number of weft stops at the timing opening angle of 800 is smaller than the timing opening angle of 700 and 900, which is namely the number of big loops 0.6 times and end loops 0.8 times per hour.
THE The Effect Of Ring Frame Thread Number And Winding Machine Counter On The Weight Of 69G Lot Cones On Winding Machine Number 8 Filly Pravitasari; Afriani Kusumadewi; Feny Nurherawaty; Rino Sulistio
Sainteks: Jurnal Sain dan Teknik Vol 6 No 1 (2024): Maret
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v6i1.655

Abstract

Abstract: A good and appropriate product quality control system can maintain product quality in accordance with the standards set by the company. Fabrics produced at PT X still has problems, namely the existence of product defects that exceed the maximum tolerance limit for defective products that have been set by the company, which is 2%. Types of fabric defects that often occur include color not ok (WTO), spot defects, crease marks and dirty color, so it is necessary to do an analysis for product quality control in each process using statistical quality control methods. ). Statistical quality control can detect the existence of special causes in variations or process errors through analysis of data from the past and the future by finding the cause of damage or product defects through existing data. Based on the results of the p control chart (p-chart) it was found that the quality of 100% viscose rayon fabric was outside the control limit, it was shown that there were still points that were outside the control limit and these points fluctuated very high and irregularly. This is an indication that the process is in an uncontrolled state or is still experiencing deviations. Furthermore, the results of the causal diagram analysis can identify the factors that cause defects in the production process, which are derived from factors of workers, production machines, work methods, and dyestuff/material. The data from the statistical quality control results can be quickly corrected so that the same mistakes do not happen again. Keywords : Quality Control, Fabric Defects, fishbone diagram
Co-Authors Feny Nurherawaty Filly Pravitasari Filly Pravitasari Rino Sulistio