Composition to obtain dissolve, not vapor permeable coatings for flexible paper packaging material and method for processing flexible paper packaging material
(57) Abstract:Describes the composition to obtain by not passing pairs coatings for flexible paper packaging material containing a polymer emulsion, which provides a barrier against water vapor and in which the polymer in the emulsion has a distribution of particle size less than about 10 μm, and a polymer selected from the group consisting of polyvinylidenefluoride, copolymer of vinylidenechloride, methyl methacrylate and Acrylonitrile, and mixtures thereof, and an additive consisting of fine material having an average particle size less than about 10 microns, and fine material capable of intermediate combining with the above polymer particles with obtaining coatings on flexible packaging material that retains prabaramee properties attached to said polymer, and which upon the dissolution of crushed particles usually less than about 1.6 mm, and this composition has a pH between about less than 2 and 8, which is selected to provide the specified grinding of the coating on the particles is typically less than 1.6 mm is also Described a method of processing a flexible paper packaging material. Technical is an increase re-use and/or screened packaging. 4 C. and 6 C.p. f-crystals, 4 Il. The invention relates to compositions for receipt by coating with ParameterName properties for flexible packaging, flexible packaging with such a coating. The invention also relates to a method of processing a flexible packaging material having prabaramee coating, whereby the coating is mixed with cellulose fibers to obtain a slurry, ensuring the preparation of fibers for her education. The invention also relates to flexible packaging, provided with a coating that allows you to use the valuable paper products.In modern practice, in order to obtain a flexible, vapor-proof packaging on a paper basis or between two sheets of paper add a film of polyethylene, wax or polyvinylidenechloride /PVDC/ coating and base paper and the sheets of paper called the substrate ("liner").Currently, all coatings with barrier properties water vapour are closed flower.Also use other resin to obtain a flexible packaging material having a low transmittance vapor, such as polyacrylates, polyvinyl acetate and the like. However, p is reed.Coatings with barrier properties for moisture that is present in the packaging materials, not leaky, are plants recycling nerazrushennymi, mainly because they create problems in the process of regenerating fibers, or by stopping the process due to the blockage of the sieve, or through contamination of the final product.Currently, more than 20% of all papers and boards produced in the world, laminate, as described above, which makes products that are unsuitable for recycling.The lack of packaging, coated with polyethylene, wax or PVDC, is that it is difficult to process with the aim of re-use and it is usually discarded. Recycling of packaging materials with barrier properties with respect to moisture is an important task of the paper mills and their customers.Dissolution (Reformirovanie) of these materials poses specific challenges for the industry. Water protection complicates the extraction of fibers used of these packaging materials, and most of the recycling plants are not able to overcome the problem of dissolution. Currently almost all of these packaging materials Snogo fiber is an important source of cellulose fibres, while the above problems these materials are usually thrown away with the creation of environmental pollution, which is unacceptable. Processing package based on cellulose fibers is an increasingly important source of cellulose fibers, and loss of fibers of high quality and value are more unacceptable since they make up the millions of tons of waste.For recycling cellulose fibers are usually used in two ways. The first method involves the destruction of the source of cellulose fibers, such as paper component of the packaging material, and the fiber components as a result of dissolution, and any other material is filtered using traditional equipment. The second method involves grinding packaging so that any additional material, such as a floor, is destroyed by very small particles less than 1.6 mm, which will pass through a sieve together with the fibers, which form the slurry. This second method is usually performed with the use of additional equipment and/or chemicals, which makes it very expensive.Unfortunately, none of polymeric materials which can be recycled without additional stages of manufacturing, provided facilitation of re-use. In addition, the presence of wax in the coating with blagovernyi properties reduces the output of the pulp and therefore increases the amount of waste.In the method of the dissolution of barriers based wax is crushed into very small particles /less than 0.7 mm/ a, which pass through the sieve and are in the pulp, which is served in a paper machine, as well as "white" (process) water.The problems associated with the dissolution of the barriers on the basis of the wax, the following:
the wax particles clog the filter;
- particles of the wax stick to the drying cylinder, causing tearing of the paper;
the wax is on the product surface, resulting in surface defects of paper and printing problems, and also causes the viscosity of the final product;
- reduced output suitable pulp.On the other hand, when lagomarcino the polyethylene coating is used, the apparatus for the dissolution of his crush large pieces of films, ranging in length from about 0.3 to 2.5, see Polyethylene scores sieve, requires stopping to clean and gives solid waste.The problems associated with polyvinylidenechloride barrier coatings, usually the same problems, is that it is providing barrier coatings with excellent steam barrier, good oxygen barrier as well as good chemical resistance at relatively low cost, it is commercially preferred for the manufacture of paper or similar material, and therefore desirable such flexible packaging, which contains PVDC coating, which can be fully recycled and reused.However, at the present state of the prior art, any attempt to improve responselist PVDC and other types of polymeric materials through the use of materials or processing that increases the rigidity of the film, leads to a sudden loss of its barrier properties, which of course is unacceptable.Coatings based on PVDC are known, for example, from the patent application in the UK 1.583.947, published February 4, 1981 (Frederick Douglass HOU). However, these coatings are applied on the paper to obtain the transition sheet. The patent concerns the recycling of this coated paper and does not provide guidance about how to obtain coverage, which can be dissolved together with the paper fibers.Patent UK 2.039.789 published 10 is selecionado water-dispersible polymer and smectite. In this patent there is no teaching about how to obtain coverage, which is characterized by a vapour barrier and at the same time is opening when it is grinding in the mixed slurry.Richard M. Podhajny in "The Search for Alternative Moisture-Barrier Coatings", Converting Magazine, August 1995, argues that alternative PVDC urgently needed because of the pollution, when Pets presence of PVDC in the wastewater. Although PVDC coatings with or without additives are known, it appears that the corresponding formulation in which the coating is to be mixed with the pulp when you use and therefore will not contaminate the environment, yet nobody is received.In the work of B. Alince and P. Lepoutre, TAPPI Journal, vol. 66, No. 11, pp. 57 and 58, describes that the viscosity of aqueous suspensions is improved at low shear when using clay, calcium carbonate and latex, which may be polystyrene.Japanese application 06136698 considers base paper from wood pulp and the barrier layer containing PVDC-latex as a binder. Patent WO 93/13264 mainly describes the material of the substrate containing a thermoplastic polymer, such as PVDC-latex, and an additive, which may be t the production needs, it is impossible to maintain the desired flow of raw paper at the expense of forests, should be found the means of obtaining a sufficient number of fibers to meet demand.Therefore, the present invention is the creation of a modified door polyvinylidenechloride cover with ParameterName properties for flexible packaging, which involves retrieving reusable and/or the materials of the packaging and which is an excellent barrier to water vapour, oxygen barrier, has excellent chemical resistance and provides high strength binding for the lamination of paper.Another objective of the invention is to provide modified by polyvinylidenechloride coating, which when applied to paper or cardboard substrate provides adequate water protection and prevents its dissolution, the processing in a paper machine or the final processing of the product.Another objective of the invention is to provide modified by polyvinylidenechloride coating, which, when dissolution is crushed into small particles, preferably less than 1.6 mm, and very easily defibered, thereby minimizing the amount of waste.Another object of the invention is the creation of a modified door polyvinylidenechloride coating that does not solid waste when recycled, which is not dissolved in the process water and does not increase BOD /biochemical oxygen demand/ wastewater, and which gives particles, which are inert and are not activated when heated.Another object of the invention is the creation of a commercially acceptable dissolve the barrier coating, such as coating based PVDC, which basically has the same barrier properties and at least approximately the same adhesion to paper, as unmodified barrier coating, and which is in addition to what is easily removed, also dissolved at a low cost.Another objective of the present invention is to provide a composition coating for flexible packaging having improved rheology flow in order to improve the characteristics of fluidity and to prevent the coating from penetrating into porous paper, as in the case of PVDC with nikodimou viscosity used in the present time.The other is the investigation, which suggests an appropriate chemical treatment to extract the pure fibers.And another object of the invention is to create a flexible barrier coatings that can be laminated on the layer of the paper base without the use of glue.According to the invention, is provided a composition for obtaining dissolve barrier water vapour for flexible packaging material containing a polymer emulsion in which the polymer has an average distribution of particle size less than about 10 microns, and an additive consisting of microdispersed material having an average particle size of about 10 microns and capable of intermediate combining with the polymer particles, obtaining coatings on flexible packaging material that retains barrier properties water vapour attached to the polymer, and which upon the dissolution of crushed particles are typically less than about 1.6 mm, the pH of the composition should be such, to ensure that the grinding of the coating on the particles is usually less than 1,6 mmAlso, according to the invention, proposes a method of processing a flexible paper packaging material having prabaramee coating that provides the var the coating contains a mixture, containing grades and additives in fine form, which is able to interim combined with particles of polyvinylidenechloride, and forming a coating on a flexible paper packaging material that retains prabaramee properties given to it by grades. The method involves grinding the packaging material including the coating on the particles, at least about 95% of which are typically less than 1.6 mm, sieving and separating any particles more than 1.6 mm and receiving pulp from the remaining particles.Although many polymers can be used to obtain ParameterName coating according to the invention, as is well known in the art, the preferred polymers include grades, a copolymer of vinylidenechloride, methyl methacrylate and Acrylonitrile, or mixtures thereof.Similarly, with respect to the adhesive, the preferred adhesives are hydrated aluminum silicate, calcium carbonate, polyvinyl acetate Homo-polymer, and mixtures thereof.In practice, the most interesting polymer emulsion contains grades.The preferred polymer in the polymer emulsion is grades /PVDC/, the s region, in which polymer chains are oriented and arranged in an orderly manner. As stated in "The Search for Alternative Moisture-Barrier Coating, Converting Magazine, August 1995, these circuits are formed a strong and interactive communication. The interaction between hydrogen atoms and chlorine provide strong attraction circuits PVDC, forming a dense three-dimensional crystal structure.Upon the dissolution of the standard crusher mechanical force applied to the coating, is not sufficient to sever the links between these circuits and obtain particles less than 1.6 mm, so the resulting particles are usually larger than 6 mmWith the introduction of PVDC selected additives such as hydrated aluminum silicate and calcium carbonate with an average particle size less than about 10 μm, and the selection of the critical pH in the composition, still crystallinity, but when chopping, it becomes possible to obtain smaller particles due to the presence of additives.As indicated above, the pH of the solution is critical. For example, gidratirovannym a silicate of aluminum pH is usually lower than or equal to about 2. With calcium carbonate pH usually between 6 and 7.No doubt, too much concentration of additives will quickly reduce the resistance clicks is, the hen as an additive is polyvinyl acetate. This Supplement is not suitable for obtaining a mixture with good raspuschennosti as hydrated aluminum silicate or calcium carbonate, however, it has a less negative effect on the permeability barrier coatings. On the other hand, the combined use of polyvinyl acetate and calcium carbonate gives excellent results in relation to the raveled out and breathability. Other additives which give satisfactory results, include emulsions of polystyrene, polyacrylate and the like.The invention is further illustrated by non-limiting examples with reference to the drawings, in which:
Fig. 1 - paper obtained using pure cellulose fibres;
Fig. 2 - the paper, obtained by dissolution of flexible packaging with steam barrier according to the invention;
Fig. 3 - the paper in Fig. 1, in which the steam is a barrier PVDC;
Fig. 4 - the paper in Fig. 1, in which the steam barrier is polyethylene.It is easy to see that in practice, the known coating is not spreading, whereas the present invention provides the paper, which is almost equivalent buildingbridges emulsion, supplied under the trademark of Serpin 2022, with 20 hours of suspension of hydrated silicate of aluminium supplied under the brand name of Omnitel (OMNIFIL) pH of the mixture containing 54,5 % of solid material, adjusted to 2.1. and flexible packaging paper product form a coating using the above-mentioned mixture. Upon the dissolution of a coating product is crushed into particles less than 1.5 mm, which is capable of dispergirujutsja almost all spreading the floor.The transmittance of water vapor /APRC/ at 100% relative humidity and 37.8oC to 25 g/m2the coating on the carton base: 15 g/m2/24 hExample 2. In example 1, except that instead of Omnifile (Omnifil) use 10 hours of calcium carbonate, supplied under the trade mark Polpro 3 (Pulpro 3) and 10 hours of polyvinyl acetate homopolymer supplied under the trade name Duratec (Daratack) 71L. The pH adjusted to 6.2. The content of solid material in the mixture of 55.7%. As a result of dissolution of the obtained particles is less than 1, 2 mm.APRC: 4 g/m2/24 hExample 3. In example 1, except that use 66 h Serpina (Serfene 2022) with 27 PM Darana (Daran)12 SLI, which is a copolymer of vinylidenechloride, methyl methacrylate is 51,5%. As a result of dissolution of the obtained particles less than 1.5 mmAPRC: 1.5 g/m2/24 hExample 4. In example 1, except that use 85 h Serpina (Serfene) 2022 15 hours of Daratech (Daratack)71L. The pH value is adjusted to 2.1, and the content of solid material in the mixture of 50.8 per cent. As a result of dissolution of the obtained particles less than 1.5 mm, which provides responselist all coatings.APRC: 4 g/m2/24 hExample 5. In example 1, except that use 75 hours Serpina (Serfene) 2022 15 PM Pulpo (Pulpro) 8/ brand powdered calcium carbonate, to some extent larger than Pulpo (Pulpro) 3/, and 10 hours of Daratech (Daratack) 71L. The pH adjusted to 6.2. The content of solid material in a mixture of 58%. As a result of dissolution of the obtained particles less than 1.5 mmAPRC: 8 g/m2/24 hExample 6. In example 1, except that use 75 hours Serpina (Serfene) 2022 11 o'clock Pulpo (Pulpro) 8 and 14 hours of Litron (Lytron) 604 /brand emulsion homogeneous solid lightweight spherical particles of polystyrene polymer/. The pH of the mixture of 6.1, and the content of solid material in a mixture of 54%. As a result of dissolution receive particles less than 1.6 mmAPRC: 5 g/m2/24 hTests made with paper coated with the composition according to the invention showed that the dissolution provides about 97% of particles less than 1.6 mm after 30 min of dissolution.It is obvious that modifications are possible, as it is easy to see specialists without departing from the scope of the present invention defined by the attached claims. 1. Composition to obtain dissolve, not vapor permeable coatings for flexible paper packaging material containing a polymer emulsion, which provides a barrier against water vapor and in which the polymer in the emulsion has a distribution of particle size less than about 10 μm, and a polymer selected from the group consisting of polyvinylidenefluoride, copolymer of vinylidenechloride, methyl methacrylate and Acrylonitrile, and mixtures thereof, and an additive consisting of fine material having an average particle size less than about 10 microns, and fine material capable of intermediate combining with the above polymer particles with obtaining coatings on flexible packaging mA is solches to particles generally less than about 1.6 mm, moreover, this composition has a pH between about less than 2 and 8, which is selected to provide the specified grinding of the coating on the particles is typically less than 1.6 mm2. The composition according to p. 1, wherein the additive is selected from the group consisting of hydrated aluminium silicate, calcium carbonate, polyvinyl acetate of homopolymer and mixtures thereof.3. The composition according to p. 1, characterized in that the polymer emulsion contains grades.4. The composition according to p. 3, wherein the additive consists of a suspension of hydrated silicate of aluminum, and the pH value of the specified composition is then adjusted to less than 2.5. The composition according to p. 3, characterized in that the additive comprises calcium carbonate, and the pH is between about 6 and 7.6. The composition according to p. 3, characterized in that the additive comprises polyvinyl acetate Homo-polymer, and the pH is about 2.7. Composition for receipt by coating with ParameterName properties for flexible paper packaging material containing a polymer emulsion containing the grades in which grades in the emulsion has a distribution by the average size of the Oia, with the distribution of average particle size less than about 10 microns, and the composition has a pH value of about 2; and the specified fine digidrirovanny aluminum silicate able to interim combined with particles of polyvinylidenechloride obtaining coatings on flexible packaging material that retains prabaramee properties attached to the specified grades, and which upon the dissolution of crushed particles usually less than about 1.6 mm8. Composition to provide dissolve ParameterName coatings for flexible paper packaging material containing a polymer emulsion containing the grades in which grades in the emulsion has a distribution according to the average particle size of less than about 10 μm, the additive containing finely-divided calcium carbonate having a distribution of average particle size less than about 10 microns, and this composition has a pH of about 6; and the fine material is capable of intermediate combining with particles of polyvinylidenechloride obtaining coatings on flexible packaging material that retains prabaramee properties, giving the 1,6 mm9. The composition according to p. 8, wherein the additive further comprises a polyvinyl acetate polymer having almost the same distribution on the average size of the particles, and calcium carbonate.10. Method for processing flexible paper packaging material coated with ParameterName properties, providing that the packaging material is dispersed into its constituent fibers and particles of the specified coating, wherein the coating contains a mixture containing grades and additives in fine form, having an average particle size less than about 10 μm, which is able to interim combined with particles of the specified polyvinylidenechloride to obtain coverage on the specified flexible paper packaging material that retains prabaramee properties attached by grades, and the method further shredding the specified packaging material including a coating on the particles, at least about 95% of which have a size of less than 1.6 mm, sieving and separation of all particles larger than 1.6 mm and receiving pulp from the remaining particles.
FIELD: food industry.
SUBSTANCE: invention is designed for packing boiled ham or pickled foods in casing non-soluble in water which can be used in process of boiling under specific conditions. Proposed casing is essentially nontubular flat film permeable for gas steam and/or smoke to which net can be applied from side opposite to food product to increase strength. Film is made in form of thin-walled fibrous film, density from 3 to about 120 g/sq.m with antiadhesive coating on at least one side, usually on side facing food product. Antiadhesive coating is made of material safe from point of view of food law ensuring against interaction of food product with packing casing at subsequent treatment, particularly, in process of cooking. Proposed casing is easy to treat and store and has low cost of making. Method of manufacture of casing is described in invention.
EFFECT: improved quality of packing casing for food products.
FIELD: packing materials.
SUBSTANCE: invention relates to polymeric films and it can be used to protect ferrous and non-ferrous metals and articles made of said metals from atmosphere corrosion in process of transportation and storage. Proposed packing material in form of polymeric film includes polyolefin with addition of hydrogen absorber, product of company Ciba-SchelfplusO2 2400 to increase barrier for penetration of oxygen, high density polyethylene, grade FL5580 produced by Borealis company featuring high barrier properties to penetration of water vapors, and modifier. Six-component complex of volatile corrosion inhibitors in form of superconcetrate of Cesa-Cor 9103 is used as modifier which contains no nitrates, and contact inhibitor cyclohexylamine chromate at the following ratio of components, mass %: six-component complex of volatile corrosion inhibitors in form of superconcentrate Cesa-Cor 9103-0.1-5.0; contact inhibitor - cyclohezylamine chromate 1.0-2.0; oxygen absorber SchelfplusO2 - 2.0 - 10.0; polyethylene FL 5580 - 10.0 - 40/0; polyolefin - the rest. When using proposed packing material, active inhibitors, evaporating, migrate in to all cavities and irregularities with subsequent condensing on metal surface. If moisture gets onto surface, molecules of inhibitor hydrolyze and protective ions are attracted to surface of metal, thus forming thin protective film. Packing material with volatile corrosion inhibitor can be used in transportation and storage of ferrous and non-ferrous metals and their alloys. Moreover, complex of volatile corrosion inhibitors migrate on protected surface quicker than other similar inhibitors, thus creating high pressure of protective vapors.
EFFECT: improved corrosion protection of metals.
4 cl, 3 ex
FIELD: chemical industry; other industries; production of the disposable containers with the latex coating.
SUBSTANCE: the invention presents the disposable molded thermoplastic container for example, the cup, the bowl made out of the foaming polystyrene particles has the latex coating, for example, made out of the latex of the interpolymer of methylmethacrylate and styrene, the latex of the interpolymer of methylacrylate and styrene, the latex of the interpolymer of the acrylic acid and styrene and the latex of the interpolymer of the butadiene and styrene applied on, at least, its internal surface by the dipping, paint-brushing or sputtering methods for the improved strength against leakage and-or the stains formation and-or durability at storage. The coating may be applied on the outer surface of the container for rising the anti-leakage strength and realization of patterning. The invention also considers the method of molding of the container, the article and usage of the container for improvement of the method of storage of the liquid and food substances.
EFFECT: the invention ensures, that the manufactured container, the article and the coating shall improve the storage of the liquid and food substances.
21 cl, 4 ex, 4 tbl
FIELD: food industry.
SUBSTANCE: invention relates to agent and method for protection of foodstuffs from damage. Agent for protection of foodstuffs from damage represents birch bark extract as a liquid component wherein birch bark is dissolved or forms a dispersed system and wherein the content of birch bark extract and a liquid component is, wt.-%: birch bark extract, 0.01-40, and liquid component, 60-99.99. By other variant the agent used for protection of foodstuffs from damage represents package material comprising a base-forming component and a modifying agent wherein birch bark extract is used in the amount 0.01%, not less, of the base-forming component mass. Protection of foodstuffs from damage is provides by applying the indicated agent possessing high activity with respect to inhibition of growth of different pathogenic microorganisms on surface of foodstuffs or by packing the foodstuff into package material showing the same properties. Invention provides decreasing loss of foodstuffs in storage and transporting. Invention can be used for elevating storage time of sausage, cheese, fresh and processed meat, fish production, fruits, vegetables and so on.
EFFECT: valuable properties and enhanced effectiveness of agent.
7 cl, 13 ex
FIELD: technological processes; chemistry.
SUBSTANCE: package material with volatile corrosion inhibitor has a form of hose, half-hose or canvas with thickness of 80-250 mcm. It includes polyolefin or polyolefin mix and "ВНХ-Л-20" volatile corrosion inhibitor dispersed in "ФМТ" contact corrosion inhibitor at the following component rate, mass % : "ВНХ-Л-20" volatile corrosion inhibitor - 0.13-1.13; "ФМТ" contact corrosion inhibitor - 0.80-2.2; the rest is polyolefin or polyolefin mix. Package material can include both one and several layers due to co-extrusion, pasting, lamination. Tests proved ant-corrosion effect of the film, particularly in conservation of pipes, steel bridge fastening bolts, steel ball bearing pin rolls (without lubricant). Production conserved by this method is delivered to customer and can resist corrosion for 1 year at least, or can be stored at a heated/cold storehouse (at room temperature of over +5°C and under +55°C) resisting corrosion for up to 5 years.
EFFECT: increased product life span without corrosion.
8 tbl, 11 ex
FIELD: textile, cotton.
SUBSTANCE: carton is intended for the packaging and can be used, for example, in the cellulose and cotton industry. On at least one of the carton's surface there are micro-lamellate cellulose particles. These particles have average volume size of the particles from approximately 20 micron to approximately 150 micron, average numerical size is from approximately 5 micron to approximately 20 micron and 95-percent average volume size not exceeding approximately 300 micron. This carton is used to produce package material. The mentioned carton can contain covering layer including the pigment. The covering layer is made of the composition containing the mentioned above micro-lamellate cellulose particles.
EFFECT: increases smoothness, toughness at the bend sides and improves the strength of the carton; it also increases its non-transparency and chalking of its covering.
24 cl, 8 dwg, 10 tbl
FIELD: personal use articles.
SUBSTANCE: unitised packaging container for sheet material containing several packs of paper wrapped into their own wrapper, which are placed into common protective wrapper, in which plastic, mixture of polymers or another suitable material that moderates penetration of moisture is added to at least the main paper layer of wrapper. At the same time unitised packaging container includes material of protective wrapper and wrapper material used for packs of paper, which are made by adding plastic, mixture of polymers or other suitable material to both in such an amount that speed of water vapours penetration through protective wrapper and wrapper as a whole makes less than approximately 50 g/m2/day, according to calculation as per ISO Standard 2528:1995.
EFFECT: development of cheap unitised packaging container, which provides good protection of sheets and is convenient to carry.
23 cl, 12 dwg
SUBSTANCE: polymeric film consists of a block-copolymeric peelable middle layer and at least one adhesive non-peelable surface layer. The middle layer makes up 95% of the thickness of the film. The surface layer contains a terpolymer of polyethylene/polypropylene/polybutylene and has thickness from approximately 0.1 mcm to approximately 1.5 mcm. An adhesive coating is deposited on the surface layer. The adhesive coating and/or surface layer is hot-sealable. The middle layer has at least one olefin component. The adhesive polymeric film has high adhesion capacity in a wide temperature range and peeling capacity. Bonded packaging is made from the polymeric film which contains a block-copolymeric substrate and adhesive coatings and/or surface layer are obtained on the substrate. The packaging is obtained by wrapping the packed article with the film such that at least one area for overlapping and hot-sealing is obtained.
EFFECT: adhesive region can be opened by manually separating overlapping sections of the film without breaking the film in or around the bonded region.
24 cl, 1 tbl, 1 ex
SUBSTANCE: invention relates to films and packaging for a myoglobin-containing food product using a myoglobin blooming agent. The film for packing a myoglobin-containing food product has one or more layers which are in form of a sheet or bag and has a layer for contact with the food product which contains a myoglobin blooming agent, and an oxygen barrier layer. The packaging is meant for a myoglobin-containing food product which contains at least 5 wt % water, and has a container and a polymer film, having an oxygen barrier layer and a layer for contact with the food product.
EFFECT: myoglobin blooming agent enables to obtain the desirable appearance of a food product or preserves its appearance while also prolonging the shelf life and freshness of meat.
96 cl, 12 ex
SUBSTANCE: proposed article is made from polyethylene or propylene. Note here that article material contains volatile corrosion inhibitor "ВНХ-Л-20" dispersed in contact inhibitor "ФМТ" at the following ratio of components, wt%: %: "ВНХ-Л-20" - 1.2," ФМТ - 1", polyethylene or propylene - 97.8.
EFFECT: higher efficiency of metal protection.
6 tbl, 3 ex
FIELD: water-dispersion coating used for application onto internal and external stone, concrete and reinforced concrete surfaces used in non-aggressive, weakly aggressive acidic industrial gas-air environments or averagely aggressive salty natural soil environments, for following application of mastic hydro-insulating cover, and also for coating wooden surfaces prior to application of mastic hydro-insulating cover or any water-dispersion paints.
SUBSTANCE: to provide for anti-corrosion resistance of reinforced concrete structures during operation, coating includes latex and thickening agent in form of liquid sodium glass. As latex, coating contains latex of triple copolymer of vinyl chloride, vinyliden chloride and maleinic acid of specified brand.
EFFECT: increased efficiency.