The study of water absorption by capillarity on paper with a simple technique is simple but important to do to inform the public about the characteristics of paper and for the development of research on the absorption of different types of paper. In this study, five types of paper were used, namely HVS paper, cardboard, tissue paper, concord paper and buffalo paper. In the capillary water absorption test on paper, the physical quantities analyzed are the water absorption, the absorption time and the water absorption rate. The capillarity of the paper is a comparison of the rate of water absorption by the paper which is analyzed using the straight line movement approach. The value of water absorption is estimated using the ratio between the height of water absorption and the time absorption. Based on the results of the capillary test on paper, it was found that the water absorption height for the five types of paper increases with increasing absorption time. The highest water absorption capacity is tissue paper, which is 7.4 ± 0.2 cm every 180 seconds. While the lowest water absorption capillarity is HVS paper which is 0.5 ± 0.1 cm at the 180th second. Cardstock and buffalo paper have almost the same water absorption value and are higher than HVS paper and match. The absorption speed which is almost the same between cardboard and buffalo paper is due to the fact that both belong to the same type of paper, namely printing paper.

Plastic trash in Indonesia has reached 64 million tons per year. Consequently, a solution is required to decrease synthetic plastic waste. A film based on nata de coco has been made as an alternative to biodegradable plastic material using materials consisting of nata de coco, chitosan, and 1% acetic acid. The nata de coco based film was made by varying the composition of chitosan. The variations of chitosan used were 0.1 gram, 0.2 gram, 0.3 gram, and 0.4 gram. The biodegradation test used the soil burial test method by immersing the sample in the soil and the mixed microbial batch method using effective microorganisms 4/EM4 with an estimated time of 15 days. The results of the soil burial test method showed a variation of 0.1 experienced a weight loss of 100%. Meanwhile, variations of 0.2, 0.3, and 0.4 experienced a weight loss of 60-75%. Meanwhile, the results of the mixed microbial batch method showed that the nata de coco-based film underwent biodegradation as indicated by the tearing of the surface of the nata de coco-based film. From these results, nata de coco-based films can be said to be biodegradable plastics.

Material kemasan makanan yang umum digunakan adalah karton. Karton memiliki beberapa keunggulan diantaranya ringan, murah, mudah dibentuk, mudah dicetak, mudah disimpan dan mudah didaur ulang. Namun material kemasan ini mudah robek jika dibandingkan dengan material lain seperti plastic, kaleng, dan kaca. Laminasi dilakukan untuk meningkatkan nilai ketahanan sobek dari karton, sehingga tidak mudah robek. Jenis karton yang umum digunakan sebagai material kemasan pangan adalah ivory. Ivory yang digunakan sebagai bahan pengujian ini bergramasi 260 gsm dan 310 gsm.  Ada tiga jenis perlakuan ivory yang diuji yakni ivory non laminasi dan ivory laminasi doff, dan ivory laminasi glossy. Penelitian ini bertujuan untuk menganalisis perbandingan nilai ketahanan sobek ivory laminasi dan non laminasi. Metode yang digunakan dalam pengujian adalah ISO 534:2011, ISO 536:2010, dan ISO 1974:2012. Hasil penelitian menunjukkan bahwa peningkatan nilai ketahanan sobek karton ivory laminasi doff sebesar 22%-24% dan untuk laminasi glossy meningkat 24%-26%.

The use of waste, as well as unused goods, becomes something that has a sales value which is very necessary to preserve the environment. One example is the use of dry leaf waste which can be transformed into goods of economic value to the people who use them. The transformation of dry waste into pulp is one of the efforts that can be made to overcome the waste problem. The pulp from the dried leaf waste can then be turned into a paper which can then be used as an alternative to sanitary pads.

This article discusses the selection of Instagram as a promotional medium in introducing the Creative Media State Polytechnic Publishing study program and publishing works. Information such as photos or videos of work products, pictures of learning activities, and other activities added to the Instagram account. This information can be seen by followers and can get a response or input directly. The study used qualitative research methods with a descriptive approach. The theory used is New Media and Internet theory, Social Media theory, and Marketing Communication theory. The study results explain that the use of Instagram significantly facilitates the spread of messages quickly and reaches more people. The content on the Instagram account @prodi.penerbitan.polimedia follows the institution's image but still has to be packaged in an attractive style and design and has new value.