The map of competition in the business world in the industrial sector makes consumers' demands on the quality of products produced even higher so that the industry has an obligation to provide the best service to consumers in order to maintain the sustainability of its business. This is evenly distributed in all industrial sectors including the printing industry. Based on preliminary observations at one of the large printing presses in Jabodetabek the failure rate of printed folding carton packaging products produced is still quite large. The integrated production process makes the process results affect each other the number of defects in the next process. The results of observations show that of the 3 main processes of folding cardboard packaging production at PT.X, the aim of printing and ponding has the highest defect percentage of 47% and 44% of the total defect, while the glueing process has the lowest percentage of 7% with a total total defect of 827,347 packages of a total production of 4,735,350. From the results of data recapitulation and calculation of the number of defects, it can be seen that the sigma value of the company with the sample production data taken has an average sigma of 3.6. Through the application of the Six Sigma DMAIC method this research seeks to provide solutions in overcoming the problems of defective products that occur during the production process so that the main purpose of the printing industri in increasing productivity can be achieved.

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Some factors of UV-curing process, they are wavelength and intensity of UV-curing. The higher intensity of UV the quicker it will dry, but if it excesses, it lead to degradation of free radical polymerization. The formation of free radical leads to cancer. Meanwhile, the degradation of packaging color will have a negative impact where people assumed that the packaging was imitation so that the product considered imitation. The color changes in the package due to the influence of temperature during UV curing. Therefore, the aim of this research is determine the characteristic of UV-flexo inks and print quality of paper cup. The method in this research is a test of the UV-flexo inks PHA types, i.e. Black 1; Black II; and Green. This study shows that paper cup of SPE of PHA types has a good heat resistance at 110oC - 135oC. The value of density changes between 0.012-0.014. UV-curing minimum for Black I type at 36 mJ/cm2; Black II is 40 mJ/cm2; and Green at 28 mJ/cm2. The findings suggest that the environmental temperature is proportional to the concentration of UV-flexo inks PHA types. And UV-flexo inks do not undergo physical changes such as liming, melting, and evaporation. Keywords: Packaging, Flexografi, UV-curing, UV-flexo Ink. ABSTRAK Faktor yang mempengaruhi proses pengeringan tinta UV, salah satunya adalah besarnya panjang gelombang dan intensitas sinar UV.¬¬ Semakin tinggi intensitas sinar UV maka tinta UV akan semakin cepat mengering, tapi jika berlebihan mengakibatkan degradasi polimerisasi radikal bebas. Terbentuknya radikal bebas dapat memicu kanker dan terjadinya degradasi perubahan warna kemasan akan berdampak negatif dimana masyarakat beranggapan bahwa kemasan itu palsu sehingga berakibat produk tersebut juga dianggap palsu, padahal perubahan warna pada kemasan tersebut disebabkan karena pengaruh temperatur pada saat UV-curing. Tujuan penelitian ini adalah mengetahui karakteristik sifat tinta UV flekso dan kualitas cetak pada material papercup. Metode yang digunakan adalah pengujian terhadap tinta UV flekso tipe PHA, yaitu Black I; Black 2; dan Green. Hasil penelitian ini memperlihatkan bahwa perubahan nilai density antara 0.012-0.014. Kuat pancar minimal lampu UV tipe Black I sebesar 36 mJ/cm2; Black II sebesar 40 mJ/cm2; dan Green sebesar 28 mJ/cm2. Dan hasil cetakan paper cup berbahan dasar SPE menggunakan tinta UV Flexo tipe PHA memiliki ketahanan panas yang baik pada temperatur 110oC – 135oC. Hal ini membuktikan bahwa temperatur lingkungan berbanding lurus terhadap kepekatan warna tinta UV-flekso tipe PHA. Dan tinta UV-flekso tidak mengalami perubahan secara fisik seperti pengapuran, meleleh, dan penguapan. Kata kunci: Kemasan, Fleksografi, UV-curing, Tinta UV-flekso

Tuna fillets are considered good media for the growth of microorganisms because it contains a high protein level. In order to determine the rottenness of the tuna fillet, smart packaging is needed. Research has been carried out on making smart labels based on red cabbage extract as an indicator of the freshness of tuna fillets at chiller temperatures. The purpose of this research was to find the best pH variation of red cabbage extract for use as a tuna fillet indicator label. The indicator labels were made with variations in pH 2, 5, 8, and 11. The tests conducted in this research including mean RGB labels, pH tests, and organoleptic tuna fillets. This research used a Completely Randomized Design (CRD) method which consists of two repetitions for each test. The test was carried out for 8 days and tested every 2 days. From this research, it was found that the pH 2 label was the best pH variation to monitor the freshness of tuna fillets. The color change of the label occurred on the 4th day when the mean RGB label pH 2 was 168.802 ± 1.093 and the pH of the tuna filet was 6.11 ± 0.16. The organoleptic score had exceeded the sensory limit on day 4 of all parameters with the appearance, smell, and texture scores being 3.8 ± 1.0, respectively; 4.6 ± 0.8; 4.8 ± 1.4. The pH 2 label was chosen since there was a color change from pink to purple when detecting spoilage in tuna fillets.

Corrugated Board is one of the most widely used packaging materials. Packaging materials shall have strength against impact or pressure when handling, transporting or storing. Corrugated board to be used as packaging material must meet the required BCT and ECT values. The purpose of this research is to know the value of Box Compression Test (BCT), Edge Crush Test (ECT), Flat Crush Test (FCT) and Bursting Strength (BS) before and after printed and to know its influence of print process to BCT and ECT value. The results show that there is decreasing values on the box after printing, which indicates the effect of printing process on compressive strength of corrugated board. The correlated values before printing are as follows: BCT value is 120.6 Kgf, ECT value is 1,961 Kgf, FCT value is 0.65 KgF, and BS value is 6.75 Kgf. Meanwhile, the values after printing are as follows: BCT value is 88.25 Kgf, ECT value 1,679 Kgf, FCT value is 0.12 KgF and BS value is 5.81 Kgf. The results show that there is decreasing values on the box after printing, which indicates the effect of printing process on compressive strength of corrugated board.Key words: corrugated board, Box Compression Test, Edge Crush Test, Bursting StrengthABSTRAKSalah satu material yang banyak digunakan untuk kemasan adalah karton gelombang (Corrugated board). Material kemasan harus memiliki kekuatan terhadap benturan atau tekanan saat penanganan, pemindahan, maupun penyimpanan. Untuk dapat digunakan sebagai material kemasan, karton gelombang harus memenuhi nilai BCT dan ECT yang telah dipersyaratkan. Dalam produksi kemasan, sering terjadi permasalahan box kemasan rusak dan tidak mampu menahan beban, padahal karton gelombang yang digunakan sudah memenuhi persyaratan nilai BCT dan ECT. Tujuan penelitian ini adalah untuk mengetahui nilai BCT, ECT, FCT dan BS sebelum dan sesudah dicetak serta mengetahui pengaruh proses cetak terhadap nilai BCT dan ECT. Hasil penelitian menunjukkan bahwa nilai BCT corrugated pada saat sebelum dicetak adalah 120,6 Kgf, sedangkan nilai ECT sesudah dicetak adalah 88,25 Kgf. Nilai ECT sebelum dicetak adalah 1,961 Kgf dan nilai ECT sesudah dicetak adalah 1.679 Kgf. Untuk nilai Flat crush Test sebelum dicetak adalah 0.65 KgF, sedangkan nilai FCT sesudah dicetak adalah 0,12 KgF. Nilai Bursting strength box sebelum dicetak adalah 6.75 Kgf dan bursting strength setelah dicetak sebesar 5.81 Kgf. Terjadi penurunan nilai BCT, ECT, FCT, dan BS pada box setelah dicetak. Hal ini menunjukkan proses cetak mempengaruhi kekuatan kotak karton gelombang.Kata Kunci: Karton gelombang, Box Compression Test, Edge Crush Test, Bursting Strength