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 An Investigative Study on the Effect of Pre-Coating Polymer Solutions on the Fabrication of Low Cost Anti-Adhesive Release Paper

Nanomaterials ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1436
Author(s):  
Semen Vasilev ◽  
Andrey Vodyashkin ◽  
Daria Vasileva ◽  
Pavel Zelenovskiy ◽  
Dmitry Chezganov ◽  
...  
Keyword(s):  
Vinyl Acetate ◽  
Low Cost ◽  
Polymer Coatings ◽  
Adhesive Properties ◽  
Base Surface ◽  
Force Microscopy ◽  
Base Paper ◽  
Pulp Paper ◽  
Novel Approach ◽  
Spectroscopy Studies

This work describes a novel approach to produce high quality release paper at lower cost than traditional methods. The anti-adhesive properties of release paper require the use of expensive machine glazed kraft or “Glassine” paper as the paper base. A series of polymer coatings including polyvinyl alcohol, carboxymethyl cellulose, polyethylene vinyl acetate, and polystyrene were chemically synthesized and coated onto a low cost pulp paper base. Surface roughness (Sa) and smoothness coefficients (k) were determined by atomic force microscopy (AFM), and the interactions between the polymer coating and base paper were investigated by Raman spectroscopy. Studies show the use of polyethylene vinyl acetate (PEVA) as a pre-coating layer on low cost pulp paper exhibits similar anti-adhesive properties as higher cost paper bases. In low margin markets such as the production of release paper, decreases in cost are critical to industry survival.

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 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.

Sustainable coatings on paper for enhancing barrier properties based on hemicellulose

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Yanan Li ◽  
Rina Wu ◽  
Jiahui Shi ◽  
Gaosheng Wang
Keyword(s):  
Self Assembly ◽  
Food Packaging ◽  
Polymer Network ◽  
Barrier Properties ◽  
Coated Paper ◽  
Coating Materials ◽  
Water Contact ◽  
Assembly Method ◽  
Thin Polymer ◽  
Packaging Paper

Abstract Coated paper with enhanced barrier properties was prepared via a simple layered self-assembly method using hemicellulose and starch as biobased coatings. Effect of the coating on properties of cellulose paper was investigated. Barrier properties of the paper was increasingly strengthened as the coating amount of hemicellulose rose. When the paper was coated with starch (10.7±0.3  g / m 2 \text{g}/{\text{m}^{2}} ) and hemicellulose (6.9±0.2  g / m 2 \text{g}/{\text{m}^{2}} ) successively, the oil resistance of the paper was increased from 0 to grade 7. Air permeability and water vapor transmittance was decreased by 93.8 % and 39.7 %, respectively. The water contact angle of the coated paper reached 91.7° when the amount of hemicellulose was 1.5±0.2  g / m 2 \text{g}/{\text{m}^{2}} . The hydrophobicity of the coated paper was superior to the original paper although it was negatively influenced by the increasing amount of hemicellulose. The improvement of barrier properties of the coated paper was mainly ascribed to the formation of a thin polymer network on paper surface through intermolecular interaction via hydrogen bonds as demonstrated in SEM and FTIR-ATR results. Moreover, tensile strength and rupture resistance of the coated paper was improved. The results offered an environmentally friendly and economical strategy for preparation of food packaging paper with good barrier properties using biobased coating materials.

Preparation of the Microfibrillated Cellulose and its Application in the Food Packaging Paper

2013 ◽  
Vol 469 ◽  
pp. 87-90
Author(s):  
Li Liu ◽  
Yun Zhi Chen ◽  
Zheng Jian Zhang
Keyword(s):  
Food Packaging ◽  
Barrier Properties ◽  
Air Permeability ◽  
Microfibrillated Cellulose ◽  
High Pressure Homogenization ◽  
High Quality ◽  
Base Paper ◽  
Hardwood Pulp ◽  
Packaging Paper ◽  
Oxidation System

Microfibrillated cellulose (MFC) was prepared from the bleached kraft hardwood pulp using TEMPO/NaClO/NaBr oxidation system and high pressure homogenization. By changing dosages of the TEMPO, NaClO and NaBr, the pressure and times of homogenization, pretreatment and homogenization process were optimized. Experimental investigation indicated that for making MFC of high quality, 0.25%TEMPO, 2.5%NaBr, 60%NaClO (based on oven dry pulp), 20 times of homogenization, pressure of 60MPa in the process of treatment were required. At last, the mechanical and barrier properties were tested after the base paper was coated by homemade MFC. The study suggested that mechanical properties (especially 5 times increase of the folding strength) increased substantially and air permeability decreased by 100times.

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.

scholarly journals Nanocomposites for Food Packaging Applications: An Overview

Nanomaterials ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 10
Author(s):  
Jawad Sarfraz ◽  
Tina Gulin-Sarfraz ◽  
Julie Nilsen-Nygaard ◽  
Marit Kvalvåg Pettersen
Keyword(s):  
Polymer Nanocomposites ◽  
Circular Economy ◽  
Food Packaging ◽  
Antioxidant Properties ◽  
Nanocomposite Materials ◽  
Consumer Acceptability ◽  
Special Focus ◽  
Packaging Materials ◽  
Mechanical And Thermal Properties ◽  
Low Concentrations

There is a strong drive in industry for packaging solutions that contribute to sustainable development by targeting a circular economy, which pivots around the recyclability of the packaging materials. The aim is to reduce traditional plastic consumption and achieve high recycling efficiency while maintaining the desired barrier and mechanical properties. In this domain, packaging materials in the form of polymer nanocomposites (PNCs) can offer the desired functionalities and can be a potential replacement for complex multilayered polymer structures. There has been an increasing interest in nanocomposites for food packaging applications, with a five-fold rise in the number of published articles during the period 2010–2019. The barrier, mechanical, and thermal properties of the polymers can be significantly improved by incorporating low concentrations of nanofillers. Furthermore, antimicrobial and antioxidant properties can be introduced, which are very relevant for food packaging applications. In this review, we will present an overview of the nanocomposite materials for food packaging applications. We will briefly discuss different nanofillers, methods to incorporate them in the polymer matrix, and surface treatments, with a special focus on the barrier, antimicrobial, and antioxidant properties. On the practical side migration issues, consumer acceptability, recyclability, and toxicity aspects will also be discussed.

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