scholarly journals PAPER PACKAGING MATERIALS: RESISTANCE TO DESTRUCTIVE FACTORS

2021 ◽  
Vol 39 (3) ◽  
pp. 75-85
Author(s):  
OSYKA Victor ◽  
KOMAKHA Olha ◽  
KOMAKHA Volodymyr
Keyword(s):  
Cellulose Fiber ◽  
Barrier Properties ◽  
Exposure Period ◽  
Strength Properties ◽  
Packaging Materials ◽  
Mechanical Loads ◽  
Maximum Decrease ◽  
Packaging Paper ◽  
Main Component ◽  
Moisture Resistant

Background. The dynamics of change of the complex of barrier and strength properties of moisture-resistant waterproof and moisture-resistant grease-proof paper packaging materials under the influence of temperature, humidity and mechanical factors is considered. The results of tests of the developed samples of paper packaging materials during exposure in the chamber of heat and moisture aging are given. Materials and methods. Paper packaging materials of grades B-55 and ZhV-55 were obtained by surface treatment with compositions using polyamide­amine­pichlorohydrin, polyvinyl alcohol, urea and glycerin.To test for heat resis­tance and moisture resistance, the PPM samples were placed in a temperature-humidity aging chamber and kept for 900 days at a given temperature (–18, –1, +6, +18, + 25 °C) and relative humidity (45, 65, 85 %), periodically (every 180 days) determining the change in their mechanical strength and barrier properties. The resis­tance of barrier properties to the effects of repetitive mechanical loads was determined by measuring the corresponding index at the site of multiple double bends. Results. During 360 days of exposure, the test samples practically do not lose resistance to the penetration of water (B-55) and fat (ZhV-55). After this exposure period, there is an intensification of degradation processes, which is more pronounced at temperatures below 0 °C. The maximum decrease (32 %) of fat permeability was recorded at a temperature of –18 °C after 900 days of ex­posure, while at temperatures above 0 °C, at this exposure, it is not more than 4 %. The strength of the packaging paper at temperatures of –1 °C and –18 °C during the test period in waterproof materials decreased by 6 % and 12 %, and in grea­seproof – 19 % and 29 %, respectively. The higher loss of strength of fat-impermeable PPM is due to the nature of the main component of the hydro­oleophobic composition – PVA, which has a higher brittleness temperature com­pared to PAAEX in the hydrophobic composition. After 150 cycles of alternating freezing and defrosting of the samples, the destructive force of the greaseproof material ZhV-55 is reduced to 57.5 N, and the waterproof B-55 – to 63 N. The destructive force for 30 repeated cycles of tem­perature change is 70.9 N and 67.3 N, in comparison with the initial values of 72.4 and 71.8 N for waterproof (B-55) and greaseproof (ZhV-55) wrapping paper, respectively. With 50 repeated double bends, which is close to the real conditions of use of packaging paper for its intended purpose, the water permeability of the sample B-55 is reduced by 8 %, and the fat permeability of the sample ZhV-55 – by 3 %. Conclusion. The established dependences allow us to state that the main factors determining the barrier and strength properties of the developed materials are: physicochemical nature of the main components of hydrophobic and hydro­oleophobic compositions, which determines the nature of their interaction with cellulose fiber; resistance of the structure of the material to the penetration of moisture and fat, as well as its ability to withstand various mechanical loads.

scholarly journals POLYAMIDAMINEPICHLOROHYDRIN APPLICATION FOR ECO-SAFE WATERFAST AND WATERPROOF FOOD PACKAGING PAPER PRODUCTION

2021 ◽  
Vol 15 (2) ◽  
Author(s):  
V. Osyka ◽  
N. Merezhko ◽  
L. Koptjukh ◽  
V. Komakha ◽  
S. Kniaz
Keyword(s):  
Polyvinyl Alcohol ◽  
Food Packaging ◽  
Food Products ◽  
Packaging Material ◽  
Packaging Materials ◽  
Functional Additives ◽  
Dry Conditions ◽  
Wood Composition ◽  
Packaging Paper ◽  
Main Component

The paper presents the research results on the properties of the pulp coniferous and deciduous wood composition in its original state and paper made from it, proposes a mechanism to increase the waterfast and waterproof food packaging paper by surface treatment with a composition based on polyamidepichlorohydrin with polyvinyl alcohol and urea.  The study was conducted in order to ensure an increase in the consumer properties of packaging paper, since when packaging materials encounter food products, their structure can change under the influence of moisture, steam, and gas. Polyamidaminepichlorohydrin was used as the main component of the composition for paper processing, as functional additives: polyvinyl alcohol and urea. The above-mentioned starting materials are environmentally friendly, since foreign inclusions in food packaging materials would pose a serious danger to human health and life, as well as to the brand image of the product in which they would be detected. It was proved that high waterfastness and waterproofness, as well as the necessary level of barrier, protective and operational properties of packaging material for food products cannot always be obtained by introducing a significant amount of polyamidaminepichlorohydrin, so the paper investigated the mechanism of interacting cellulose fibers of paper with polyamidaminepichlorohydrin, and also proved the possibility of its use to obtain packaging paper with a given set of properties. It was found that the consumption of up to 4–6% polyamidaminepichlorohydrin provides the main increase in the mechanical strength of packaging paper, both in wet and dry conditions. The resulting waterfast and waterproof material can be used for food packaging.

scholarly journals Review on Polysaccharides Used in Coatings for Food Packaging Papers

Coatings ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 566 ◽  
Author(s):  
Petronela Nechita ◽  
Mirela Roman (Iana-Roman)
Keyword(s):  
Food Packaging ◽  
Negative Impact ◽  
Antimicrobial Properties ◽  
Barrier Properties ◽  
Extraction Methods ◽  
Packaging Materials ◽  
Paper Coatings ◽  
Marine Biomass ◽  
Film Forming ◽  
Packaging Paper

Paper and board show many advantages as packaging materials, but the current technologies employed to obtain adequate barrier properties for food packaging use synthetic polymers coating and lamination with plastic or aluminium foils—treatments which have a negative impact on packaging sustainability, poor recyclability and lack of biodegradability. Recently, biopolymers have attracted increased attention as paper coatings, which can provide new combinations in composite formulas to meet the requirements of food packaging. The number of studies on biopolymers for developing barrier properties of packaging materials is increasing, but only a few of them are addressed to food packaging paper. Polysaccharides are viewed as the main candidates to substitute oil-based polymers in food paper coating, due to their film forming ability, good affinity for paper substrate, appropriate barrier to gases and aroma, and positive effect on mechanical strength. Additionally, these biopolymers are biodegradable, non-toxic and act as a matrix for incorporation additives with specific functionalities for coated paper (i.e., active-antimicrobial properties). This paper presents an overview on the availability and application of polysaccharides from vegetal and marine biomass in coatings for foods packaging paper. The extraction methods, chemical modification and combination routes of these biopolymers in coatings for paper packaging are discussed.

Modern Packaging Materials for Steel Products

2017 ◽  
Vol 265 ◽  
pp. 1040-1047 ◽  
Author(s):  
L.G. Kolyada ◽  
E.V. Tarasyuk ◽  
S.A. Krylova
Keyword(s):  
Corrosion Resistance ◽  
Chloride Ion ◽  
Strength Properties ◽  
Packaging Materials ◽  
Rolled Steel ◽  
Protective Properties ◽  
Production Processes ◽  
Cold Rolled ◽  
Metal Products ◽  
Packaging Paper

The paper investigates structural, physical, deformation, strength, barrier, and corrosion resistance properties of domestic packaging papers in comparison with Fislage's foreign equivalent. It studies packaging paper protection of cold-rolled steel under different relative humidity, periodic humidity concentration, and available chloride ion conditions. The corrosion resistance properties of BLIK paper with UNI inhibitor are proven to match those of the foreign equivalent previously used. The EuroBum's packaging paper has poorer protective properties possibly due to the lower corrosion inhibitor content. The competitive recovery of domestic combined packaging materials for metal products can be improved by changing their production processes: increasing inhibitor content, creeping ratio of the paper base and reinforcement in order to obtain better deformation and strength properties.

SAFETY OF PAPER PACKAGING MATERIALS WITH POLYMER COATINGS

2021 ◽  
Vol 40 (4) ◽  
pp. 59-67
Author(s):  
OSYKA Victor ◽  
KOMAKHA Olha ◽  
KOMAKHA Volodymyr
Keyword(s):  
Vinyl Acetate ◽  
Food Packaging ◽  
Polymer Coatings ◽  
Packaging Materials ◽  
Coating Materials ◽  
Base Paper ◽  
Organoleptic Characteristics ◽  
Packaging Paper ◽  
Moisture Resistant ◽  
Microbiological Indicators

Background. Packaging materials that are intended for contact with food are subject to the strictest requirements for their safety. When choosing packaging material for such products, first of all it is necessary to ensure the required level of sanitary and hygienic characteristics. The aim of the study is to assess the safety of moisture-resistant waterproof and moisture-resistant and water-resistant waterproof PPM (paper packaging materials) with a polymer coating. Materials and methods.The object of the study is PPM, made by processing the base paper with coatings based on PVA (polyvinyl alcohol) and PAAEX (polyamidamine-pichlorohydrin). The safety of the developed packaging materials was assessed by organoleptic and physicochemical methods for the presence of foreign tastes and odors, the level of migration of vinyl acetate and epichlorohydrin, the content of zinc, lead, cadmium and microbiological indicators by standard methods. Results. Packaging paper must meet the requirements of current regulations in terms of quality, and its use is allowed subject to compliance with state sanitary norms. Studies of organoleptic characteristics of extracts of paper packaging materials did not reveal the presence of foreign tastes and odors. Determination of the amount of migration of harmful substances, namely vinyl acetate and epichlorohydrin, showed that the transition of the components of the solutions, which are impregnated with paper materials is within acceptable limits. The content of zinc and lead was 25 and 3 times less than the maximum allowed by regulations. The microbiological parameters of the developed paper packaging materials meet the regulatory requirements and allow their use for food packaging. Conclusion. Developed new types of paper packaging materials on the level of migration of toxic compounds (vinyl acetate, epichlorohydrin), heavy metal content and microbiological indicators meet the requirements for packaging both food and non-food products of pharmaceutical, medical, cosmetic and other industries.

scholarly journals Starch–Mucilage Composite Films: An Inclusive on Physicochemical and Biological Perspective

Polymers ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2588
Author(s):  
Mansuri M. Tosif ◽  
Agnieszka Najda ◽  
Aarti Bains ◽  
Grażyna Zawiślak ◽  
Grzegorz Maj ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Barrier Properties ◽  
Edible Films ◽  
Packaging Material ◽  
Polymer Materials ◽  
Synthesis Process ◽  
Packaging Materials ◽  
Packaging Film ◽  
Biodegradable Packaging ◽  
Effective Manner

In recent years, scientists have focused on research to replace petroleum-based components plastics, in an eco-friendly and cost-effective manner, with plant-derived biopolymers offering suitable mechanical properties. Moreover, due to high environmental pollution, global warming, and the foreseen shortage of oil supplies, the quest for the formulation of biobased, non-toxic, biocompatible, and biodegradable polymer films is still emerging. Several biopolymers from varied natural resources such as starch, cellulose, gums, agar, milk, cereal, and legume proteins have been used as eco-friendly packaging materials for the substitute of non-biodegradable petroleum-based plastic-based packaging materials. Among all biopolymers, starch is an edible carbohydrate complex, composed of a linear polymer, amylose, and amylopectin. They have usually been considered as a favorite choice of material for food packaging applications due to their excellent forming ability, low cost, and environmental compatibility. Although the film prepared from bio-polymer materials improves the shelf life of commodities by protecting them against interior and exterior factors, suitable barrier properties are impossible to attain with single polymeric packaging material. Therefore, the properties of edible films can be modified based on the hydrophobic–hydrophilic qualities of biomolecules. Certain chemical modifications of starch have been performed; however, the chemical residues may impart toxicity in the food commodity. Therefore, in such cases, several plant-derived polymeric combinations could be used as an effective binary blend of the polymer to improve the mechanical and barrier properties of packaging film. Recently, scientists have shown their great interest in underutilized plant-derived mucilage to synthesize biodegradable packaging material with desirable properties. Mucilage has a great potential to produce a stable polymeric network that confines starch granules that delay the release of amylose, improving the mechanical property of films. Therefore, the proposed review article is emphasized on the utilization of a blend of source and plant-derived mucilage for the synthesis of biodegradable packaging film. Herein, the synthesis process, characterization, mechanical properties, functional properties, and application of starch and mucilage-based film are discussed in detail.

Improved mechanical and barrier properties of low-density polyethylene nanocomposite films by incorporating hydrophobic graphene oxide nanosheets

RSC Advances ◽  
2015 ◽  
Vol 5 (98) ◽  
pp. 80739-80748 ◽  
Author(s):  
Hua-Dong Huang ◽  
Sheng-Yang Zhou ◽  
Peng-Gang Ren ◽  
Xu Ji ◽  
Zhong-Ming Li
Keyword(s):  
Graphene Oxide ◽  
Barrier Properties ◽  
Nanocomposite Films ◽  
Low Density Polyethylene ◽  
Packaging Materials ◽  
Low Density ◽  
Graphene Oxide Nanosheets

The successful conversion from hydrophilic GONSs to hydrophobic ODA–GONSs imparts LDPE nanocomposite films with enhanced mechanical and barrier performances for potential packaging materials.

scholarly journals To the Question of Designing Baromembrane Combined Type Apparatus

2021 ◽  
Vol 27 (3) ◽  
pp. 415-427
Author(s):  
S. I. Lazarev ◽  
O. V. Lomakina ◽  
V. E. Bulanov ◽  
I. V. Khorokhorina
Keyword(s):  
Strength Properties ◽  
Technological Parameters ◽  
Mechanical Loads ◽  
Membrane Apparatus ◽  
Strength And Stiffness ◽  
Selection Of ◽  
Toroidal Shells ◽  
Type Apparatus

The paper considers works on methods for calculating design and technological parameters, design of membrane equipment, research of technological features of membrane devices, selection of design schemes, methods for calculating strength and stiffness. A method has been developed for calculating mechanical loads and determining the thickness of plates and toroidal shells of a membrane apparatus of the combined type, which makes it possible to assess the strength properties of apparatus of this class. An example of a calculation, which makes it possible to assess the adequacy of the application of this technique to devices of the combined type, is given.

scholarly journals Fractional pulping of packaging board in high consistency drum pulping

TAPPI Journal ◽  
2017 ◽  
Vol 16 (02) ◽  
pp. 89-95
Author(s):  
HEIKKI UPOLA ◽  
ARI AMMALA ◽  
MIRJA ILLIKAINEN
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Fiber Length ◽  
Short Fiber ◽  
Strength Properties ◽  
Ash Content ◽  
Packaging Materials ◽  
Wet Strength ◽  
Fiber Fractions ◽  
High Consistency

A wide variety of packaging materials with different wetting rates and wet strength properties are used in old corrugated container (OCC) processing. The disintegration rates of the different grades also vary and enable the use of the fractional pulping concept where easily disintegrated material is removed at the early stages. In the present study, fractional drum pulping was studied by pulping (Pilot drum pulping) and fractionating (Tampella oscillating screen) a mixture of strong-grade kraftliner and weak-grade fluting at high consistency to determine if energy consumption could be reduced. The results showed that a 25% energy saving could be realized through fractional pulping and an even higher potential might be possible if pulping conditions are optimized. Average fiber length, fines content, and ash content in the separated fractions were analyzed. The separated short fiber fractions and long fiber fractions could be individually processed, thus decreasing the volumes in the unit processes on the OCC line.

scholarly journals Ellagic Acid May Improve Mechanical and Barrier Properties in Films of Starch-A Review Paper

2016 ◽  
Vol 5 (3) ◽  
pp. 61
Author(s):  
J. M. Tirado-Gallegos ◽  
D. R. Sepúlveda-Ahumada ◽  
P. B. Zamudio-Flores ◽  
M. L. Rodríguez-Marin ◽  
Francisco Hernández-Centeno ◽  
...  
Keyword(s):  
Ellagic Acid ◽  
Structural Changes ◽  
Antioxidant Properties ◽  
Barrier Properties ◽  
Packaging Materials ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
X Ray ◽  
Film Forming ◽  
Starch Films

<p>Packaging increases the shelf life of food and facilitates its handling, transportation and marketing. The main packaging materials are plastics derived from petroleum, but their accumulation has given rise to environmental problems. An alternative is the use of biodegradable materials. In this regard, starch is an excellent choice because it is an abundant and renewable source with film-forming properties. However, the films obtained from starch have some limitations with respect to their mechanical and barrier properties. Several strategies have been developed in order to improve these limitations, ranging from the addition of lipids to the modification of the polymer structure. The aim of this review was propose the use of ellagic acid as a cross-linking agent that may improves the mechanical and barrier properties in films based on exists reports that phenolic compounds interact with starch-based materials decreasing their rate of retrogradation. Furthermore, ellagic acid is a powerful natural antioxidant, which would allow the production of active packaging with antioxidant properties, in addition to the improvement of the mechanical and barrier properties of starch films. In this concern more studies such as Fourier transform infrared spectroscopy, X-ray diffraction, differential scanning calorimetry and thermogravimetric analysis are necessary to verify the structural changes and interactions between starch and ellagic acid. We expect extensive use of it in the future of packaging materials.</p>

Strength Properties of Composite Board Materials Based on Ligno-Cellulose Fiber, Modified by Steam Explosion Treatment

2020 ◽  
Vol 299 ◽  
pp. 986-992
Author(s):  
Dmitry B. Prosvirnikov ◽  
Nail F. Timerbaev ◽  
Zulfiya G. Sattarova
Keyword(s):  
Steam Explosion ◽  
Chemical Properties ◽  
Cellulose Fiber ◽  
Wood Pulp ◽  
Strength Properties ◽  
Physical And Chemical Properties ◽  
Cellulosic Material ◽  
Composite Board ◽  
Physical And Chemical ◽  
And Chemical Properties

The article presents the results of using activated lingo-cellulosic material, obtained by the method of steam explosion treatment, as the basis for the production of composite pressed boards without a binder. The influence of steam explosion treatment modes on the physical and chemical properties of the wood pulp product and the strength properties of the resulting board materials is considered.

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