scholarly journals Reducing non conformance quality of yarn using pareto principles and fishbone diagram in textile industry

Author(s):  
Fajar Pitarsi Dharma ◽  
Zulfa Fitri Ikatrinasari ◽  
Humiras Hardi Purba ◽  
Winda Ayu
UNISTEK ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 6-10
Author(s):  
Egar Naufal Ari Satya ◽  
Wahyudin Wahyudin

Abstrak. Dunia industri yang semakin berkembang akan mengakibatkan banyaknya persaingan. Perus-ahaan yang dapat bersaing adalah perusahaan yang dapat menjaga  kualitas produknya dengan baik sehingga dapat memenuhi kepuasan konsumen. Maka dari itu diperlukan pengendalian kualitas. Penelitian ini difokuskan pada penurunan cacat pada produk batu bata merah di CV. Ghatan Fatahillah dengan metode Six Sigma-DMAIC (Define, Measure, Analyze, Improve, dan Control). Dari hasil penelitian didapatkan DPMO sebesar 36.212 dengan nilai sigma 3,29. Jenis cacat yang paling sering terjadi pada batu bata merah yaitu pecah/patah yaitu sebesar 4.327 atau 59,81% dari total keseluruhan produk yang cacat.  Hasil dari tahap analyze dengan fishbone diagram, ditetapkan penyebab dari pecah/cacat, yaitu: pekerja kurang paham standar kualitas, tidak adanya pemeriksaan produk, pekerja kurang paham prosedur kerja, kinerja mesin tidak stabil, pekerja kurang teliti,  jumlah penggilingan tidak menentu, dan komposisi batu bata tidak menentu. Maka perlu dilakukan usulan perbaikan agar dapat mengurangi jumlah produk yang cacat pada batu bata merah. Kata kunci: DMAIC, DPMO, Pengendalian Kualitas, Six Sigma Abstract. The growing industrial world will result in a lot of competition. Companies that can compete are companies that can maintain the quality of their products well so that they can meet customer satisfaction. Therefore, quality control is needed. This research is focused on reducing defects in red brick products at CV. Ghatan Fatahillah with the Six Sigma-DMAIC method (Define, Measure, Analyze, Improve, and Control). From the research results obtained DPMO of 36,212 with a sigma value of 3.29. The type of defect that most often occurs in red bricks is broken / broken, which is 4,327 or 59.81% of the total defective products. The results of the Analyze stage with the fishbone diagram showed that the causes of breakage / defects were determined, namely: workers do not understand quality standards, lack of product inspection, workers do not understand work procedures, unstable machine performance, workers are not careful, the number of mills is erratic, and composition erratic bricks. So it is necessary to make improvement proposals in order to reduce the number of defective products in red bricks. Keywords: DMAIC, DPMO, Quality Control, Six Sigma


AGROINTEK ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 72
Author(s):  
Andan Linggar Rucitra ◽  
S Fadiah

<p><em>Telon oil is</em><em> one of </em><em> </em><em>the </em><em>traditional medicine in the form of </em><em> </em><em>liquid preparations that serves to provide a sense of warmth to the wearer. PT</em><em>.X</em><em> is one of the companies that produce</em><em> </em><em>telon</em><em> oil</em><em>.</em><em> To maintain</em><em> the quality of telon oil from PT.X</em><em> product</em><em>, required overall quality control that is starting from the quality control of raw materials, quality control process to the quality control of the final product. The purpose of this research is to know the application of Statistical Quality Control (SQC) in controlling the quality of telon oil in PT X. </em><em>F</em><em>inal product</em><em> quality</em><em> become one of the measurement of success of a process, so it needs a good quality control. SQC method used in this research is Pareto Diagram and Cause and Effect Diagram. Pareto diagram is a bar graph </em><em>that </em><em>show the problem based on the order of the number of occurrences of the most number of problems until the least happened. A causal diagram is often called a fishbone diagram, a tool for identifying potential causes of an effect or problem. The result of applying the method indicates that 80% defect is caused by unsuitable volume and on the incompatibility of Expired Date (ED) code. The damage is caused by several factors namely the method, labor, and machine while the most potential factor is the volume conformity to reduce the number of defect products.</em></p>


2021 ◽  
Vol 3 (2) ◽  
pp. 130-138
Author(s):  
Desiyarotur Risykiyana ◽  
Muhammad Yusril Bahtiar ◽  
Farid Sukmana

In the development of a system, quality assurance is needed. A system can be said to be of good quality if it meets the needs of the user. Quality can be measured from various points of view. One point of view to measure software quality is to focus on service management systems. To determine the quality of a system, it is necessary to analyze the quality of the system. The school library system at MTs Muhammadiyah 8 Ujungpangkah has implemented a lot of service management systems to support the process of activities in the library. However, it is not yet known whether the system is in accordance with the assessment standards or not.The author uses the ISO 20000 standard to assess the requirements for obtaining a certificate in the library application by conducting various analyses. This study aims to analyze the application of the library system with ISO 20000. The analytical research methods used include determining clauses, checklists, Likert scale, maturity levels, and fishbone diagrams. The references that I take are based on the results of the analysis of the writing team that I have made including graphs, diagrams, clause scores, checklist scores, Likert scales, maturity levels, and fishbone diagrams. Based on the results of the author's analysis, the school library application system at MTs Muhammadiyah 8 Ujungpangkah does not meet the ISO 20000 standard so that there is still much that needs to be improved in the library system. The Likert scale score is only 11%, while to meet the ISO 20000 standard the Likert scale score must reach at least 60%. The overall problem with this analytical assessment that results in the Library System application not passing the ISO 20000 quality standard is the lack of a Likert scale score and fishbone diagram. With fishbone diagram, the main root cause is found with organitation structure that is not clear to monitor the application working. The hypothesis in this study can be the basis for future research so that the application can meet the feasibility test of the ISO 20000 quality standard.


2021 ◽  
Vol 29 (1-2) ◽  
pp. 21-28
Author(s):  
María Bettina Gómez ◽  
Melina Castillo

The ovine population of the central Argentine territory is the result of constant introductions of different animal biotypes, which determined the existence of ovine populations with great variability. The main objective of the breeders is to produce a lamb for self-consumption and sale of surpluses, without considering the wool product. The production of a lamb for the market is compatible with the production of wool for the textile industry, having to evaluate the feasibility for the commercialization of lamb wool that they produce. This work aimed to provide information and tools to evaluate the quality of lamb’s wool and the evolution of the weight of lambs belonging to the native flocks of the area. Characterization of the productive systems was carried out, seeking to highlight the attributes of meat and wool of native lambs. The characteristics of wool and meat lamb product were evaluated under two treatments, either in free rage conditions or lambs supplemented under confinement. The analysis of the behaviour of the productive systems did not show significant differences between lamb biotypes, which allows affirming that the variation within an animal biotype is even more important than the expected one between biotypes. This indicates that both treatments can be used according to the particular situation of each productive unit. Therefore, it is possible to produce wool and meat of outstanding quality looking for the goodness of the wool produced and optimizing through proper handling practices the meat product.


2019 ◽  
Vol 31 (3) ◽  
pp. 390-402 ◽  
Author(s):  
Xueqing Zhao ◽  
Xin Shi ◽  
Kaixuan Liu ◽  
Yongmei Deng

PurposeThe quality of produced textile fibers plays a very important role in the textile industry, and detection and assessment schemes are the key problems. Therefore, the purpose of this paper is to propose a relatively simple and effective technique to detect and assess the quality of produced textile fibers.Design/methodology/approachIn order to achieve automatic visual inspection of fabric defects, first, images of the textile fabric are pre-processed by using Block-Matching and 3-D (BM3D) filtering. And then, features of textile fibers image are respectively extracted, including color, texture and frequency spectrum features. The color features are extracted by using hue–saturation–intensity model, which is more consistent with the human vision perception model; texture features are extracted by using scale-invariant feature transform scheme, which is a quite good method to detect and describe the local image features, and the obtained features are robust to local geometric distortion; frequency spectrum features of textiles are less sensitive to noise and intensity variations than spatial features. Finally, for evaluating the quality of the fabric in real time, two quantitatively metric parameters, peak signal-to-noise ratio and structural similarity, are used to objectively assess the quality of textile fabric image.FindingsCompared to the quality between production and pre-processing of textile fiber images, the BM3D filtering method is a very efficient technology to improve the quality of textile fiber images. Compared to the different features of textile fibers, like color, texture and frequency spectrum, the proposed detection and assessment method based on textile fabric image feature can easily detect and assess the quality of textiles. Moreover, the objective metrics can further improve the intelligence and performance of detection and assessment schemes, and it is very simple to detect and assess the quality of textiles in the textile industry.Originality/valueAn intelligent detection and assessment method based on textile fabric image feature is proposed, which can efficiently detect and assess the quality of textiles, thereby improving the efficiency of textile production lines.


2019 ◽  
Vol 89 (21-22) ◽  
pp. 4438-4451 ◽  
Author(s):  
Peiying Li ◽  
Mingrui Guo ◽  
Fengxin Sun ◽  
Weidong Gao

An agent-aided system (AAS) for improving comprehensive properties of ring spun yarns with the aid of viscosity and surface tension of the agent is reported in this paper. The mechanism of the humidification and friction process of the AAS was investigated, and related experiments were also carried out to verify the mechanism of analysis. The results confirm that the AAS can attach the fiber ends protruding out of a yarn body on the yarn surface and assist in twisting the fiber ends back into the interior of the yarn body, resulting in a significant reduction of the modified ring spun yarn hairiness. Moreover, the yarn hairiness is prominently reduced after the winding process. The experimental results also show that a speed ratio of 1.3 between the rotating speed of the cylinder and the output speed of the yarn leads to the greatest extent of harmful hairiness reduction (34%), which also corresponds to optimal modified yarn tenacity. Meanwhile, the modified ring spun yarns show a tight and smooth appearance, and the yarn evenness has no deterioration. In addition, the AAS is applicable to both cotton and viscose yarns with different yarn counts. Therefore, the AAS can potentially be used to reduce yarn hairiness for ring spun yarns and enhance the quality of ring spun yarns in the textile industry.


2018 ◽  
Vol 57 ◽  
pp. 01013
Author(s):  
Jacek Grodzicki ◽  
Bożena Kłusek-Wojciszke

Harmonization of the relationship between society, economy, and nature requires both the development of more environmentally friendly technologies or restrictions on its exploitation, as well as a change in the way of life and work. This is particularly about improving the quality of work to reduce energy consumption and/or pollution. In this context, the issue of the organizational climate that determines job satisfaction and increasing cooperation towards sustainable development is of particular importance. The article presents the results of research on the organizational climate carried out on a selected group of students employed in textile industry enterprises. The analysis of the results allows us to state the high assessment of the climate at work in its individual spheres and a high level of trust in the management of the organization.


Author(s):  
Raj Kumar Khiani ◽  
Mazhar Hussain Peerzada ◽  
Sadaf Aftab Abbasi

In Textile industry, production is mostly key concern for Industry owner. This always has attracted researchers and machines manufacturers to make new developments in process and machines. Air-jet is one of the leading and successful highest productive weaving machines. However, it is now well established that due to add of charges of compressed air, manufacturing cost of air-jet weaving machine is higher as compared with rapier and projectile weaving machines. This is why countries having energy issues do not prefer air-jet weaving machines comparing projectile weaving machines. In this regard, several researchers and machine manufacturers have continuously been working to improve the efficiency of air-jet weft insertion. However, industry practice is as important as design made by researchers. The aim of this research is to investigate the air consumption of air-jet weaving on industrial scale practice. In this study, five weaving machine of same manufacturer and model were selected. It was observed that despite of manufacturing same quality of fabric, air consumption was varying almost in all weaving machines. Conventionally, mill workers adopt hit and trial practice in weaving industry including airpressure setting which leads to variation of nozzle pressure. Main reason of disparity of air consumption in air-jet weaving machines may be variation of distance from compressor to weaving machines, number of joints, un-necessary valve opening and pipes leakages cause an increase of compressed air consumption.


2020 ◽  
Vol 71 (04) ◽  
pp. 357-363
Author(s):  
NICOLETA ANDREEA NEACȘU ◽  
SIMONA BĂLĂȘESCU ◽  
MARIUS BĂLĂȘESC ◽  
CARMEN ELENA ANTON

In a sustainable society, the integration into the activity of entities of the actions from the sphere of social responsibility becomes more and more evident. The study analyzes the textile industry in Romania in terms of social responsibility, the involvement of companies in this industry in asserting the values of this level. Thus, a quantitative marketing research is carried out at the level of the population in Romania, a piece of research which is aimed at identifying the opinions and attitudes of the citizens regarding the social responsibility adopted by the Romanian companies, with emphasis on the companies in the textile industry. In this research, particular attention was given to the comprehension of the reality of the aspects in which consumers perceive the requirements of social responsibility and of the way in which they function in practice. The results of this research can be used by the companies in the textile industry as well as by all the companies interested in this aspect in order to improve the quality of the services and of their implications in the social life and in order to respond to the needs of the citizens as well as possible.


Author(s):  
P W Y Kencana ◽  
◽  
I P M Astawa ◽  
I M Wijana ◽  
◽  
...  

The purpose of this research is to determine the level of service quality applied at the Four Seasons Resort Hotel at Jimbaran Bay with the Six Sigma method. This research applies Six Sigma as a method to improve the quality of services of the Four Seasons Resort Hotel at Jimbaran Bay, specifically to meet customer expectations so that customers feel satisfied with the services provided. The results showed that the Four Seasons Resort Hotel at Jimbaran Bay had a DPMO value of 201.944, if converted it showed a Six Sigma value of 2,34 on a satisfaction target of 5 or very satisfied. Based on the Fishbone diagram, the order of problems that dominates must be resolved is the evaluation of services and facilities, standardization of time or improvement of administrative procedures, and allocation of vacant room items.


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