Packaging Technology and Science最新文献

{"title":"Estimating minimum required dwell time for the heat sealing of talc containing polypropylene/low‐density polyethylene packaging films","authors":"I. Ilhan, M. van Drongelen, Roland ten Klooster, I. Gibson","doi":"10.1002/pts.2716","DOIUrl":"https://doi.org/10.1002/pts.2716","url":null,"abstract":"Dwell time is one of the main parameters influencing heat seal quality and process efficiency in flexible packaging. In this study, the rheological behaviour of polypropylene (PP)/low‐density polyethylene (PE‐LD)‐based compound films containing different ratios of talc was examined. The minimum dwell time required to supply a sufficient sealing was estimated based on heat conduction time and reptation time. Reptation is a rheological concept used to described the behaviour of a polymer melt, and the reptation time is the time required for a molecule to escape from its surrounded entangled structure. The results showed that increased levels of talc are associated with elevated complex viscosities, storage and loss modulus as well as an increased seal strength. The estimated minimum required dwell time at the seal initiation temperature (SIT) dropped sharply with the initial introduction of 10 wt% talc. However, increasing the talc ratio to 30 wt% did not create any major change in the estimated time value. Also, observed T‐peel strength values for 0.1 and 0.5 s dwell time at SIT confirmed the predicted minimum required dwell time values. On the other hand, when the seal temperature is increased to the higher end of the operation window, time estimations did not match with the observed seal strengths. Here, the melting already starts and the molecules diffuse up to a certain distance before the interface temperature reaches the desired level. Recalculation of the average diffusion distance by including this pre‐melting situation can present a better approach for the temperatures above SIT. When the molecules diffused around halfway along the sealant thickness observed, seal strengths reached a sufficient level (2.5 N/25 mm) for both SIT and the highest end of the operation window. In conclusion, it has been revealed that knowing the reptation time and the required time for the heat conduction during the sealing process can help to predict the minimum required dwell time to achieve quality sealing, especially at low sealing temperatures. Additional surface characterizations also helped to elaborate on the influence of changing insoluble filler ratio on the seal initiation properties. It has been showed that the added talc increases the surface free energy and supplies easier wetting at the seal interface. Therefore, adding talc or a similar insoluble filler can help to make the heat sealing process more efficient.","PeriodicalId":19626,"journal":{"name":"Packaging Technology and Science","volume":"98 1","pages":"349 - 361"},"PeriodicalIF":2.6,"publicationDate":"2023-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80953028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Moisture ingress in commercial steel drums: Water content determination, diffusion modelling and predicted permeation rates","authors":"Christian G. Bustillos, M. Bora, Gabriella King, Sarah Matt, C. Haertling, W. D. Du Frane","doi":"10.1002/pts.2715","DOIUrl":"https://doi.org/10.1002/pts.2715","url":null,"abstract":"Commercial steel drums underpin the global economy, playing a pivotal role in the storage and transportation of critical materials. Transported and stored materials, such as food, chemical and nuclear waste, can be sensitive to ambient conditions, particularly moisture that can enhance negative effects such as corrosion and material degradation. Although international standards and regulations are in place for the qualification of steel drums, there are no current testing requirements, established limits or boundaries for the permeation of moisture into the drums during transportation or storage. This work aims to provide insights into the moisture ingress over time into properly sealed steel drums and provides estimated moisture ingress rates over time through extrapolation. Water vapour transmission rate (WVTR) measurements through the gasket material at 10–40°C were 0.11–2.1 g/m2/day resulting in a permeation activation energy of 30.2 kJ/mol. Water sorption measurements and Karl Fischer titration (KFT) on ethylene propylene diene monomer (EPDM) gasket material revealed a decrease in equilibrium moisture saturation with increasing temperature. KFT measurements also revealed the presence of moisture within the adhesive and drum wall after exposure to ambient conditions. KFT and Fourier transform infrared spectroscopy (FTIR) show that moisture will desorb from the EPDM and drum wall after exposure to desiccating conditions, although a minimal amount of moisture will remain present. When sealed to the manufacturer's recommendations, the steel drums are effective in minimizing moisture ingress. In sealed empty drums, moisture ingress rates for 19‐L drums were 0.4–1.5 mg/day at 25°C 15% relative humidity (RH) and increased to 7.1–8.8 mg/day at 40°C 90% RH, and moisture ingress rates for 210‐L drums were 2.5 and 3.5 mg/day at field deployment conditions of 15.5°C 51.5% RH and 23°C 40% RH, respectively.","PeriodicalId":19626,"journal":{"name":"Packaging Technology and Science","volume":"5 1","pages":"329 - 347"},"PeriodicalIF":2.6,"publicationDate":"2023-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83717972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of biodegradable film as modified atmosphere packaging for red chili (Capsicum annuum cv. Jinda)","authors":"Dane Archibald G. Balanon, Amporn Sane, Piyawanee Jariyasakoolroj, Pattarin Leelaphiwat","doi":"10.1002/pts.2714","DOIUrl":"https://doi.org/10.1002/pts.2714","url":null,"abstract":"Biodegradable blend films containing thermoplastic starch (TPS), polylactic acid (PLA), and poly(butylene adipate‐co‐terephthalate) (PBAT) were assessed for red chili storage under modified atmosphere packaging (MAP) at 10°C. Performances of biodegradable blend films were compared to polypropylene (PP) film and the control (unpacked). Gas permeabilities and permeability ratios were determined to measure the ability of the films to create an optimal atmosphere for red chili storage. PP film attained values close to the recommended MAP gas concentrations and maintained desirable chili quality parameters up to the 15th day. Biodegradable films did not achieve the recommended MAP gas concentrations, but high water vapor permeability prevented moisture loss and maintained firmness and overall quality. No discoloration was recorded in all MAP treatments, while biochemical parameters showed a decreasing trend, with measured levels significantly higher in MAP samples than unpacked samples. MAP for red chili was achieved using a packaging system, with similar gas permeabilities to PP film but with significantly higher water vapor permeability.","PeriodicalId":19626,"journal":{"name":"Packaging Technology and Science","volume":"12 1","pages":"379 - 388"},"PeriodicalIF":2.6,"publicationDate":"2023-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89506824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Aligning sustainable development goals with Industry 4.0 for the design of business model for printing and packaging companies","authors":"A. Kluczek, B. Gladysz, A. Buczacki, K. Krystosiak, Krzysztof Ejsmont, E. Palmer","doi":"10.1002/pts.2713","DOIUrl":"https://doi.org/10.1002/pts.2713","url":null,"abstract":"Growing concern for Industry 4.0 (I4.0) motivates to examine I4.0 technologies under the lens of sustainable development goals (SDGs) in the context of digital technologies. The goal of the paper is to align SDGs with selected I4.0 technologies to conceptualize a digital business model for printing and packaging companies. In this perspective, a comprehensive literature review, quantitative survey and qualitative individual in‐depth interviews were conducted as a research approach. Findings revealed that printing and packaging companies achieved SDGs (8, 9 and 12) mostly through their value proposition by supporting I4.0 components (cybersecurity, system integration, cloud computing, big data and Internet of things [IoT]). The business model affirms a digital‐oriented transition towards sustainability, fostering further development of I4.0. It also highlights the importance of redesigning traditional business models to embrace digitalization. Despite the study limitations, the business model can be adapted to other companies of various sectors, improving their ‘profit centres’.","PeriodicalId":19626,"journal":{"name":"Packaging Technology and Science","volume":"194 1","pages":"307 - 325"},"PeriodicalIF":2.6,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75584858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mapping class learning outcomes of the core curriculum to university learning goals at Michigan State University's School of Packaging","authors":"R. Auras, Laura Bix, Dian Xu, Cimberly Weir, Matthew Daum, E. Almenar, Angela Brann, Ronald Iwaszkiewicz, D. Kamdem, M. Mahmoudi, John Marshall, Mohammad Mohiuddin, Muhammad Rabnawaz, A. Joodaky, Euihark Lee","doi":"10.1002/pts.2712","DOIUrl":"https://doi.org/10.1002/pts.2712","url":null,"abstract":"Class learning outcomes (CLOs) supporting the interdisciplinary curriculum of the School of Packaging (SoP) at Michigan State University (MSU) were mapped to competency‐based, programmatic learning outcomes (CPLOs) undergirded by broad learning goals of the University (MSU‐LGs). Six CPLOs related to the core curriculum, including the ability to design and evaluate packaging systems, as well as students' professionalism and teamwork skills, were developed using consensus building with all teaching faculty. Relationships, from specific to broad (i.e., CLOs to CPLOs to MSU‐LGs), were mapped with the SoP faculty. This mapping scheme (class‐specific CLOs supporting broader program CPLOs and, ultimately, MSU‐LGs) was developed to guarantee alignment of expectations for learning from the course to the packaging program to the MSU‐LGs. From Fall 2018 until Fall 2019, assessment tools, including rubrics and assignments intended to evaluate learning, were developed to assess core and elective courses offered by the SoP. Data collection of each student's performance was conducted utilizing Watermark's VIA software from Fall 2018 until Fall 2021 and continuous. Assessment of student performance provided evidence of learning across the SoP curriculum as well as how CLOs, delivered and assessed at the individual student level, translate into competence achieved at the programmatic and university levels.","PeriodicalId":19626,"journal":{"name":"Packaging Technology and Science","volume":"7 1","pages":"293 - 305"},"PeriodicalIF":2.6,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89003410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interactions of fast‐moving consumer goods in cooking: Insights from a quantitative ethnographic study","authors":"G. Berumen, J. Fischer, M. Baumers","doi":"10.1002/pts.2710","DOIUrl":"https://doi.org/10.1002/pts.2710","url":null,"abstract":"Fast‐moving consumer goods (FMCGs) are increasingly equipped with enhanced packaging that incorporates novel functionalities. Providing FMCGs with this technology is challenging due to their unique characteristics, such as their low cost and short lifespan. Knowledge derived from a comprehension of their interactions in practice can help develop FMCGs that better cater to consumer needs and are well‐integrated into real‐world contexts. To help develop a method for the formation of such practical insights, 20 households were visited where participants were then observed as they cooked a meal. The sessions were captured on video, and a detailed record of the interactions between individuals, FMCGs and other items was made. A quantitative ethnographic approach was applied to analyse and build an understanding of different aspects of these interactions including their frequential, sequential and correlational features. The findings are discussed through the lens of how an appreciation of the interactions of FMCGs can serve as a valuable guidance for the design and development of their enhanced counterparts. The discovery that FMCGs are linked to the use of other items, for instance, is proposed as an opportunity to make use of the unique properties of the other items that a given FMCG commonly interacts with as a resource to create functionalities. As an exploratory reflection of how FMCGs are utilised in practice, the methods and knowledge presented in this study can be valuable in creating enhanced FMCGs by advocating for a product development process in which decisions are firmly grounded in empirical insights.","PeriodicalId":19626,"journal":{"name":"Packaging Technology and Science","volume":"22 1","pages":"265 - 279"},"PeriodicalIF":2.6,"publicationDate":"2022-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74287341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Buriti oil and natural surfactant improve the properties of cassava starch and carboxymethylcellulose films","authors":"Rogério Willian Silva dos Santos, Deocleciano Cassiano de Santana Neto, M. S. Leite, R. M. M. Jorge, T. L. P. Dantas","doi":"10.1002/pts.2711","DOIUrl":"https://doi.org/10.1002/pts.2711","url":null,"abstract":"Due to the environmental problem related to the disposal of non‐biodegradable packaging and its aggravation during the COVID‐19 pandemic, buriti oil (BO) and Yucca schidigera (YS) surfactant were added to the cassava starch and carboxymethylcellulose films to create a new emulsified biofilm with better properties. The influence of BO and YS on mechanical and barrier properties was evaluated. All properties differed significantly (p < 0.05) compared to the base film. Incorporation of BO and YS increased tensile strength by 1.100% and opacity by 375% and reduced elongation. In addition, the two variables generated a reduction in water vapour permeability (~47%) and water solubility (~70%), making the films less hydrophilic. Both attenuated total reflectance (ATR)–Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) were able to generate important correlations, observing the effects of BO and YS on the uniformity and cohesion of the structures of the emulsified films. Overall, the emulsified films showed great potential for application as primary and/or secondary packaging.","PeriodicalId":19626,"journal":{"name":"Packaging Technology and Science","volume":"29 1","pages":"281 - 292"},"PeriodicalIF":2.6,"publicationDate":"2022-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83078125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Determination of needs the production of 5 L pet bottles and cost analysis","authors":"Mustafa Timur","doi":"10.1002/pts.2706","DOIUrl":"https://doi.org/10.1002/pts.2706","url":null,"abstract":"Many parameters are used in bottle production in pet blow moulding machines. These parameters must be well optimized considering the machine‐related elements and theoretical values. In particular, the use of auxiliary elements at the correct values in the production of pet bottles affects the quality of produced bottles and the efficiency of bottle production. The right choice of equipment is important for the correct and precise planning of production. In this article, the equipment necessary for the production of 5 L pet bottles were identified, and the capacity calculations of this equipment were performed. Then, an up‐to‐date cost calculation was made, and appropriate conditions were created for production with the use of the right equipment in this field. This study was carried out in 2021 in Turkey at the Private Plastic Pet production plant, and cost analysis was performed successfully by determining the appropriate needs regarding the production.","PeriodicalId":19626,"journal":{"name":"Packaging Technology and Science","volume":"18 1","pages":"219 - 226"},"PeriodicalIF":2.6,"publicationDate":"2022-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89051970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Increasing the dosing accuracy of a screw dosing device by inline measurement of the product density","authors":"F. Kruppa, Uta Weiß, B. Oberdorfer, B. Wilke","doi":"10.1002/pts.2703","DOIUrl":"https://doi.org/10.1002/pts.2703","url":null,"abstract":"Fine‐powdered bulk materials exhibit high compressibility even under low pressure. The dosing error in volumetric dosing devices increases fundamentally with increasing product compressibility. In order to increase the dosing accuracy of a volumetric dosing of powdered bulk solids, the dosing process must be adapted to the product parameters. The most important parameter is the time‐variable product density. With a pure volumetric dosage, it has a direct influence on the actually filled product quantity. Attempts are often made to obtain feedback by means of a scale in order to continuously adjust the volume. However, this is often associated with a delay. In this article, the approach is to measure the product mass flow directly by means of a microwave sensor and to regulate it to a predetermined mass flow. The experimental investigations were carried out with a screw dosing device FVS 3111. Two scenarios were tested: on the one hand, the integration of the sensor directly at the product delivery point, whereby the difference of the average value of the dosed quantity to the target weight could be improved with the sample product coffee; on the other, the sensor was integrated directly at the beginning of the screw and the remaining product flow was simulated. A reduction of the standard deviation compared with the conventional control could also be achieved, but here, the difference between the average of the dosed quantity and the nominal quantity is greater. The cause is presumed to be the too generalized assumption of product behaviour in the case of vertical conveying by means of a screw. In summary, the dosing accuracy of a screw dosing device could be increased by measuring and regulating the mass flow and thus the costs of a manufactured packaging could be reduced.","PeriodicalId":19626,"journal":{"name":"Packaging Technology and Science","volume":"35 1","pages":"185 - 194"},"PeriodicalIF":2.6,"publicationDate":"2022-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80800504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biopolymers for packaging applications: An overview","authors":"Subodh K. Juikar, S. Warkar","doi":"10.1002/pts.2707","DOIUrl":"https://doi.org/10.1002/pts.2707","url":null,"abstract":"Biopolymers are fourth generation packaging materials. Due to the shortcomings of the petrochemical‐based polymers and their threat to the environment, biopolymers are seen as the sustainable substitute for traditional synthetic polymers and have attracted the researchers towards the development of biopolymer‐based packaging materials. However, biopolymers suffer from flaws like inferior mechanical strength and thermal stability, which poses its inability to use at industrial scale. The recent studies thus highlighted the different modification methods such as reactive or nonreactive compatibilisation to conquer such issues. The present article recapitulates the various biopolymers developed in the recent past, modification methods for their processing and their packaging applications.","PeriodicalId":19626,"journal":{"name":"Packaging Technology and Science","volume":"25 1","pages":"229 - 251"},"PeriodicalIF":2.6,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89595576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}