Barrier Properties Of Packaging Research Articles

Scale-Up Preparation of Biobased Poly(ethylene furanoate) Biaxial Orientation Films with Enhanced Mechanical and Barrier Properties for Packaging

Scale-Up Preparation of Biobased Poly(ethylene furanoate) Biaxial Orientation Films with Enhanced Mechanical and Barrier Properties for Packaging

Development and redesign of flexible packaging under sustainability criteria

The circular economy and sustainable development are critical issues today, given the growing environmental pollution caused by solid waste, especially plastics. Furthermore, plastic waste has raised significant social concerns and alerted plastic product designers. Therefore, developing or redesigning plastic products in the flexible packaging industry is imperative to ensure their recyclability at the end of their life cycle. It is necessary to ensure that the mechanical and barrier properties of the ecological plastic packaging remain intact for specific uses. The current study aims to redesign flexible packaging, focusing on providing the mechanical and barrier properties of the packaging suitable for food industry applications, thus offering a solution through new design proposals that allow the development of sustainable and flexible packaging, emphasizing material reduction and recyclability. This study assessed and compared the mechanical properties of the proposed packaging with those of existing products. The results demonstrated the feasibility of reducing plastic film thickness or eliminating layers in a tri-laminated structure and transitioning to a bi-laminated structure. This adjustment did not compromise the mechanical and barrier properties; the oxygen barrier remained at 35.39 cc/m2*day, and the humidity stood at 0.57 mg/m2*day. This investigation led to a 26.48% reduction in the raw material consumption of laminated coils and 12.68% in Doypack type packaging used in food applications. Consequently, the decreased material usage and adoption of monomaterial structures significantly minimized the environmental impact of plastic waste contamination due to the possibility of mechanically recycling the final product.

Highly transparent biaxially oriented poly(ester amide) film with improved gas barrier properties and good mechanical strength

Poly(ethylene terephthalate) (PET) reinforced with hydrogen bonding is prepared by incorporating 4 mol% amide units formed by 1,12-dodecanediamine and terephthalic acid. Structurally modified PET (PETA) containing amide units is extruded and biaxially stretched to make biaxially oriented (BO) PETA films with high performance. The formation of hydrogen bonds in BOPETA is detected, and the effect of the incorporated amide units on the performance is discussed. Attractive interchain forces are increased through the hydrogen bonds formed in BOPETA, and its crystallinity and mechanical properties are improved. The fabricated BOPETA film exhibits lower water and oxygen permeabilities than that of BOPET because the free volume was reduced. The optical properties of the BOPETA film remain good after incorporating amide units into the PET backbone, and its light transmittance reaches 88.8%. Moreover, BOPETA with 4 mol% amide units absorbs somewhat ultraviolet (UV) light and exhibits slight anti-UV performance. A facile approach for the preparation of PET films with good mechanical strength, high transparency, and improved gas barrier properties for packaging is discussed in this work.

ПРІОРИТЕТИ РОЗВИТКУ СВІТОВОГО РИНКУ ПАКУВАЛЬНОГО ОБЛАДНАННЯ

Globalization has greatly influenced the homogenization of consumer tastes, on the one hand, identifying the need to take into account global development goals in each area of economic activity, and on the other hand, has demanded an individual approach in many industries. These factors have significantly impacted the global market for perishable equipment. Not so many works in the economic sphere have been devoted to the development of packing equipment as a separate sector of mechanical engineering, which has made this research relevant. In the article the author conducted a study of the state and trends of the world market of packaging equipment. Both global trends and features of regional development of this product market are considered. It is determined that the main trends that have a significant impact on the global packaging equipment market in the current period and are likely to dominate in the near future are the reduction of material consumption of packaging, ensuring its compliance with modern logistics, growth of e-commerce. The role of such factors as the barrier properties of packaging, its safety and ease of use by end users is increasing. Increasingly used personalization of the packaging solution, increasing the share of production and use of active packaging, augmented reality products. It is determined that one of the main trends observed in the market of packaging machines is the world export of packaging equipment from five major countries: Germany, Italy, the United States, China and Japan dominate the global packaging and export market. All these countries receive a significant amount of income from the sale of packaging equipment around the world. Germany and Italy are known for supplying the modern market with high-tech packaging equipment. However, China has secured a strong market position due to its exports of low-cost packaging equipment with comparable production. Most countries in the world do not have a strong production base for the production of packaging machines. Based on the study, we can say that the need for packaging equipment will grow every year. In the course of the study, we decided to confirm one of the postulates given in the previous sections, that the growing population in the world has a positive impact on the packaging equipment market.

Integrative programming for simulation of packaging headspace and shelf life of fresh produce

Fresh horticultural products are exposed to different environmental conditions from farm to fork. Barrier properties of packaging and physiological behaviour of produce, namely respiration and transpiration can affect headspace conditions surrounding produce and consequently remaining shelf life. Packaging material also plays a role in heat and mass transfer, such as thermal conduction and permeation of O2, CO2 and water vapour. All of these behaviours are integrated together in the form of ordinary differential equations and solved using numerical methods in MATLAB.• The simulation program is useful for designing the size and number of perforations to achieve equilibrium modified atmosphere alone or in combination with packaging material having a higher water transmission rate or active moisture absorber.• The simulation program is also useful for predicting the shelf life of fresh produce under the actual supply chain conditions.• The simulation program provides a flexible system to input predefined supply chain conditions and the properties of fresh produce and packaging material, thus, minimizing the costly and time consuming experimental procedures for selecting the optimum packaging material for fresh produce.

The influence of packaging materials protective properties and applying modified atmosphere on packed dried apricot quality changes

The influence of protective properties of packaging materials and modified atmosphere on quality changes of dried apricot is shown in this paper. In our investigation, we used four different characteristic combinations of packaging materials with different barrier properties for packaging of dried apricot: polyester-polyethylene (PET/PE), paper-polyethylene (PAP/PE), paper-aluminum-polyethylene (PAP/Al/PE), polyester-aluminum-polyethylene (PET/Al/PE) and two different atmospheric conditions: normal and modified. Modified atmosphere was made in laboratory conditions: CO2 about 30%, N2 about 60%, and the rest is O2. Over the 12-month storage period, the changes in the water content, water activity (aw) and overall polyphenol content were monitored in the packed product.

The influence of protective properties of packaging materials and application of modified atmosphere on packed dried apricot

The influence of protective properties of packaging materials and modified atmosphere on quality changes of dried apricot is shown in this paper. In our investigation, we used four different characteristic combinations of packaging materials with different barrier properties for packaging of dried apricot: polyester-polyethylene (PET/PE), paper-polyethylene (PAP/PE), paper-aluminium-polyethylene (PAP/Al/PE), polyester-aluminium-polyethylene (PET/Al/PE) and two different atmospheric conditions: normal and modified (30% CO 2 , 60% N 2 ). The parameters evaluated in this study were moisture content, the content of the brown component and the hidroxymethilfurfural (HMF) content. During the storage period of 12 months, changes in moisture content, and colour changes of brown component and HMF contents were affected by the type, combination and applied packing conditions. During the investigation period, the moisture content increased, as well as the content of the brown component and the HMF content. The highest changes in moisture content are reported for dried apricot packaged in the PAP-PE under normal atmosperic condition (increased from 31.2 to 39.6%, taking into consideration 100 g of the sample, after 12 months of storage). The highest value of HMF content was recorded for dried aprricot packaged in the PAP-Al-PE with modified atmospheric condition after nine months of storage (0.152 mg/g). The research results indicate that sustainability of dried packaged apricot is affected by the selection of packaging material and the applied atmospheric conditions. Keywords: Packaging, modified atmosphere, dried apricot