Article Per Year (5 Year)
p-Index From 2021 - 2026
0.659
P-Index
This Author published in this journals
All Journal Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Muhammad Ikhwan
Department of Plastic and Rubber Processing Technology, Politeknik ATK Yogyakarta, 55188, Special Distric of Yogyakarta, Indonesia

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
IMPLEMENTATION ANALYSIS OF OCCUPATIONAL SAFETY AND HEALTH IN THE OPERATING PROCESS A CRUSHER MACHINE AT THE PLASTIC WORKSHOP OF POLYTECHNIC ATK YOGYAKARTA Muhammad Ikhwan
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol. 22 No. 1 (2023): Berkala Penelitian Kulit, Sepatu dan Produk Kulit
Publisher : Politek ATK Yogyakarta Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58533/wkhvbt87

Abstract

The Plastic Laboratory is one of the Laboratories of the Rubber and Plastic Processing Technology Study Program located at the Polytechnic ATK Yogyakarta. Plastic Workshop has several machines including Injection Molding machine, Blow Molding machine, Crusher machine and Mixer machine. In the operation of the crusher machine, there is a danger of microplastics produced as a by-product of the plastic enumeration process where the raw material is in the form of a practicum reject product on the Injection Molding and Blow Molding machines. Microplastics are types of plastic waste that are smaller than 5 mm in size and are grouped into 2 types, namely primary and secondary microplastics. The transfer of microplastics from the environment into the human body can occur both primary (directly from the environment into the human body in inorganic form) and secondaryly (entering through the food chain, by consuming organisms polluted with microplastics). Primary transfer can occur through the digestive (digesti) and respiratory (inhalation) systems. Microplastics can enter the human body primarily through inhalation, because microplastics can float in the air. From the hierarchy of hazard control, Administrative Control and the application of Personal Protective Equipment is the hierarchy that best suits the conditions and needs in the plastic laboratory. Where with Administrative Control, which ensures that all people in the laboratory and practice who operate crusher machines are required to use Personal Protective Equipment, the impact of microplastic hazards can be minimized properly. Another thing to note is that the provision of engineering gloves, respirator masks and earmuffs should be done periodically and in sufficient quantities.
ENGINERING HOPPER DRYER BUFFER TOOL AT THE PLASTIC WORKSHOP OF POLYTECHNIC ATK YOGYAKARTA Muhammad Ikhwan; Diana Yuliastuti
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol. 23 No. 1 (2024): Berkala Penelitian Kulit, Sepatu, dan Produk Kulit
Publisher : Politek ATK Yogyakarta Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58533/reyr4s76

Abstract

Plastic Laboratory is one of laboratory at ATK Polytechnic Yogyakarta. Plastic Workshop has several machines including hopper dryer machines that cannot be functioned because of the absence of supporting devices. The design of this hopper dryer support device aims to help the process of operating the hopper dryer that has been in the plastic workshop. This buffer tool is designed according to needs by taking into account the ergonomic value of the machine and plastic workshop room. The design of the Hopper Dryer buffer consists of a Hopper Dryer holder table and a plastic ore transport funnel. In this study, in order to achieve the results of the hopper dryer support device design as expected, several stages or design steps were prepared starting from determining the list of needs, determining concepts, designing components, making detailed technical drawings, materials used, making products and trials. From the analysis of the use of the hopper dryer buffer tool made, it can be concluded that with this buffer device, the hopper dryer that initially could not be functioned can finally be operated properly so that it can help the drying process of plastic ore to be processed on the Blow Molding machine. From the trials carried out with the maximum load, the hopper dryer capacity is safe to use so that if each production process only uses 1/4 of the maximum capacity, the resulting load voltage of 1029 N is still very safe to use.
THE USE OF A CROCKMETER MACHINE FOR RUBBING TEST ON PARCHMENT SKIN Muhammad Ikhwan
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol. 21 No. 2 (2022): Berkala Penelitian Kulit, Sepatu dan Produk Kulit
Publisher : Politek ATK Yogyakarta Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58533/31jdyb28

Abstract

One of the small industries that survives and needs to be developed is the shadow puppet industry. The shadow puppet industry uses parchment skin as the main raw material. As a laboratory institution, the author tested the quality of parchment skin dye paint for shadow puppet using a crockmeter machine. The test is carried out by adding an auxiliary material in the form of ethylene glycol to the dye paint which is expected to improve the quality of the rubbing resistance of the dye paint on the shadow puppets. In this test the author uses parchment skin from sun-dried buffalo skin with a transparent color and an even thickness of the skin and a large cross-sectional area so that no part is wasted. Furthermore, the parchment skin surface was sanded before staining. This sanding aims to level the parchment skin surface and remove the remaining collagen, protein and fat. The test was carried out using 3 samples. Sample I used coloring materials (mowilex paint, foxputih glue, water and finishing using mowilex clear). Sample II uses coloring materials (mowilex paint, white fox glue, water, Ethylen Glycol and finishing using mowilex clear). Sample III uses dyes (mowilex paint, white fox glue, water, Ethylen Glycol, finishing using mowilex clear and the addition of a clearing process using a sunlight wetting agent. From the experiments and tests carried out, better results were obtained for the use of Ethylen Glycol in the coloring and also the clearing process to improve the color quality of the wayang kulit products produced.
Co-Authors Diana Yuliastuti