Classifications

• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
  • A01N25/34—Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N31/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic oxygen or sulfur compounds
  • A01N31/02—Acyclic compounds
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
  • A01N37/12—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group, wherein Cn means a carbon skeleton not containing a ring; Thio analogues thereof
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N63/00—Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
  • A01N63/10—Animals; Substances produced thereby or obtained therefrom
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N63/00—Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
  • A01N63/50—Isolated enzymes; Isolated proteins
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
  • A01N65/08—Magnoliopsida [dicotyledons]
  • A01N65/24—Lauraceae [Laurel family], e.g. laurel, avocado, sassafras, cinnamon or camphor
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
  • A61L2/00—Disinfection or sterilisation of materials or objects, in general; Accessories therefor
  • A61L2/16—Disinfection or sterilisation of materials or objects, in general; Accessories therefor using chemical substances
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D15/00—Printed matter of special format or style not otherwise provided for
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
  • B42D25/23—Identity cards
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
  • B42D25/26—Entrance cards; Admission tickets
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
  • B42D25/29—Securities; Bank notes
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/30—Identification or security features, e.g. for preventing forgery
  • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/40—Manufacture
• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
  • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
  • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
  • D21H21/36—Biocidal agents, e.g. fungicidal, bactericidal, insecticidal agents

Definitions

• the invention relates to an information carrier intended to be handled by a large number of users, such as for example a banknote.
• the invention aims more particularly to provide an information carrier of this type which is further advantageously provided with antiviral properties, as well as its manufacturing process.
• the greenback is one of the most heavily manipulated information carriers in the world and, as such, poses a potential threat to health. It is itself a potential vector for the transmission of disease and can lead to a variety of infections for those who handle it, which may be aggravated by the amounts of pathogens, the virulence of the sample, and the individual resistance.
• banknotes could contribute to influenza epidemics.
• influenza viruses can survive for up to 17 days on a conventional bank note.
• Patent application WO 03/084326 contemplates the addition of an agent bacteriostatic and / or bactericidal and fungistatic and / or fungicidal in such an information carrier.
• the invention aims to provide an information carrier having antiviral properties and satisfying these needs.
• the Applicant after having tested numerous virucidal compositions, has surprisingly succeeded in solving the problems posed by treating the information medium with a virucide of natural origin.
• the invention relates to an information carrier intended to be handled relatively frequently, characterized in that it contains an effective amount of at least one virucide of natural origin and at least one agent. humectant.
• Such a medium can thus be described as an information carrier with antiviral properties, that is to say having an ability to be active against viruses.
• the virucides used according to the invention advantageously do not have any particular toxicity with regard to the individuals brought to handle them and are not subject to particular directives.
• the invention also relates, in another of its aspects, to a method of manufacturing an information carrier as defined above, comprising at least the step of bringing into contact, in the presence of at least one humectant a base support with said virucide of natural origin, or in particular a precursor thereof, under conditions conducive to the incorporation thereof at said support.
• the invention also relates, according to yet another of its aspects, to a method for manufacturing an antiviral information carrier, characterized in that at least one virucidal agent of natural origin is synthesized in situ at a support level base formed for example of cellulosic and / or plastic materials.
• the virucidal properties of said support are conferred by the treatment thereof with a composition comprising at least said virucide.
• the virucidal properties of said support according to the invention can be conferred upon it when it is printed with an ink comprising at least one virucide of natural origin, or else by the deposition of a varnish, especially an overprint, comprising at least one such virucidal of natural origin.
• the present invention also provides an information carrier according to the invention whose virucidal properties are imparted via an ink, printed on said support, said ink comprising at least said virucide of natural origin.
• Information carrier As indicated above, the information media more particularly considered in the context of the present invention are information carriers intended to be handled relatively frequently.
• an "information medium intended to be handled relatively frequently" is a medium handled at least twice manually by the same individual or at least two distinct individuals.
• a manual manipulation may consist of at least one contact, for example a seizure, by at least a part of a hand.
• the disposable media are, for example, not considered as information carriers in accordance with the invention.
• the information carriers according to the invention are more particularly media intended for use in an ambient atmosphere.
• the supports considered according to the invention are, in general, not dedicated to use in a liquid medium and more particularly aqueous.
• the information medium intended to be handled relatively frequently in accordance with the invention may in particular be a security document comprising at least one security element.
• the security document as well as the security elements that it comprises, for example a security thread, a watermark, an impression, a patch and / or a foil, may comprise one or more security elements as defined above. after.
• Some of the security features are detectable to the eye, daylight or artificial light, without the use of a particular device.
• These security elements comprise for example colored fibers or boards, fully or partially printed or metallized wires. These security elements are called first level.
• security elements are detectable only with a relatively simple device, such as a lamp emitting in the ultraviolet (UV) or infra-red (IR).
• UV ultraviolet
• IR infra-red
• security elements comprise, for example, fibers, boards, strips, wires or particles. These security elements can be visible to the naked eye or not, being for example luminescent under a lamp of a lamp of
• security elements still require for their detection a more sophisticated detection device.
• These security elements are for example capable of generating a specific signal when they are subjected, simultaneously or not, to one or more external excitation sources. The automatic detection of the signal makes it possible to authenticate, if necessary, the document.
• These security elements comprise for example tracers in the form of active materials, particles or fibers, capable of generating a specific signal when these tracers are subjected to optronic, electrical, magnetic or electromagnetic excitation. These security elements are said to be third level.
• the security elements present in the security document and the elements that it comprises may have first, second or third level security features.
• the information carrier according to the invention may comprise a substrate comprising papermaking fibers known to those skilled in the art, for example cellulosic fibers (in particular cotton fibers) and / or natural organic fibers other than cellulosic fibers and / or synthetic fibers, for example such as polyester or polyamide fibers, and / or optionally mineral fibers, for example such as glass fibers.
• papermaking fibers known to those skilled in the art, for example cellulosic fibers (in particular cotton fibers) and / or natural organic fibers other than cellulosic fibers and / or synthetic fibers, for example such as polyester or polyamide fibers, and / or optionally mineral fibers, for example such as glass fibers.
• the information carrier according to the invention is based on materials, in particular fibers, cellulosic, and in particular paper.
• the information carrier according to the invention is based on natural organic fibers other than cellulosic fibers.
• the information carrier according to the invention is based on plastic materials, and in particular synthetic fibers or a plastic sheet.
• the support may also be a plastic film, particularly a biaxially stretched film base of polyethylene like the Polyart ® material sold by the company
• Arjobex It is more particularly a sheet comprising a coextruded support, made from at least one polymeric material, comprising for example a core layer and at least one skin layer, the core layer having voids.
• the support may also be a multilayer support, in particular laminated or laminated.
• Said multilayer support comprises in particular at least one layer based on cellulosic or plastic materials as described above.
• the information carrier according to the invention is based on mineral fibers.
• the information medium considered according to the invention may be a passport, an identity card, a driving license, an access card, a loyalty card, a photocopy card, a canteen card, a card to play, a collectible card, a means of payment, including a payment card, a bank note, a gift certificate or a receipt, a ticket for access to cultural or sporting events, a certificate of authenticity, or a packaging, a book, a map, a label, an envelope or a magazine.
• the information carrier according to the invention is a security document, and in particular a bank note.
• the information carrier according to the invention contains at least one virucide of natural origin.
• virucidal refers to any compound having the ability to kill or inhibit viruses.
• the virucidal agent according to the present invention is more particularly dedicated to killing and / or inhibiting a pathogenic virus with respect to mammals and more particularly to humans.
• viruses can be naked viruses or enveloped viruses.
• retroviruses cytomegaloviruses, rotaviruses, paramyxoviruses, polioviruses, hantaviruses, coxsackie viruses, encephalomyocarditis, picornaviruses including rhinoviruses, DNA or RNA viruses including flaviviridae, AIDS virus, influenza viruses, smallpox virus, yellow fever virus, hepatitis C, herpes viruses, Epstein-Barr virus, varicella-zoster virus, rubella virus, or simian 40 or SV40 virus.
• virucidal of natural origin any virucidal pre-existing in nature or that can be synthesized from natural compounds existing in nature.
• the virucides of natural origin that can be used in the context of the present invention can thus be obtained either by extraction and purification from a natural medium containing them or by synthesis from natural compounds.
• virucides By way of example of such virucides, mention may be made especially of monolaurin which can be obtained by synthesis from glycerol and lauric acid.
• glycerol and lauric acid constitute, in the sense of the invention, a virucidal precursor insofar as they allow, after the method according to the invention to generate a carrier with antiviral properties.
• precursor denotes, according to the invention, a compound which is capable, during the steps of the process according to the invention, either by transformation or by reaction with another compound which is associated with it, and therefore also qualified for precursor, to generate the expected virucide.
• the virucidal of natural origin may be chosen in particular from monolaurin, lactoferrin and essential oils with antiviral activity, such as essential oil of laurel.
• monolaurin means both natural pre-existing monolaurin and that obtained by synthesis from glycerol and lauric acid.
• the information carrier according to the invention contains an effective amount of at least one virucidal agent of natural origin, that is to say a sufficient quantity thereof to endow the carrier with information incorporating it. antiviral properties. According to one embodiment, it may in particular be a sufficient amount of naturally occurring virucide to confer on said information carrier incorporating an antiviral activity greater than 1 log, according to the measurement protocol described in the examples. .
• the amount of virucide of natural origin to be used according to the invention depends in particular on the nature of said virucidal agent and / or on the nature of the information carrier and can therefore vary to a large extent.
• the information carrier in accordance with the invention may contain from 0.1 to 2% by dry weight, for example from 0.5 to 1.5% by dry weight, of virucide of natural origin relative to to its total weight.
• the information carrier according to the invention may further contain other additional active compounds, with or without antiviral activity.
• biocides may in particular also contain biocides, and for example biocides of bacteriostatic and / or bactericidal and / or fungistatic and / or fungicidal type.
• the virucidal of natural origin required according to the invention can itself present, in addition to its antiviral activity, at least one other biological activity.
• the virucidal of natural origin required according to the invention may for example also have a bacteriostatic, bactericidal, fungistatic or fungicidal activity, and more particularly a bacteriostatic or bactericidal activity.
• a humectant is a compound capable of providing a hydration or hygroscopic effect.
• polyol compounds such as, for example, glycerine, also known as glycerol, propylene glycol, polyethylene glycol, polyol glycol, polyol, are particularly suitable in the context of the present invention. butylene glycol, glyceryl triacetate, or sorbitol.
• the humectant considered is glycerol.
• the humectant agent in question is chosen from the following compounds: pidolic acid (PCA) and its derivatives (arginine PCA, copper PCA, ethylhexyl PCA, lauryl PCA, PCA magnesium, sodium PCA, zinc PCA.
• PCA pidolic acid
• arginine PCA copper PCA
• ethylhexyl PCA ethylhexyl PCA
• lauryl PCA ethylhexyl PCA
• PCA magnesium sodium PCA
• zinc PCA zinc PCA
• the information carrier according to the invention may contain from 0.5 to 4% by dry weight, for example from 1 to 3% by dry weight of humectant (s), and in particular glycerol, by compared to its total weight.
• humectant s
• glycerol glycerol
• the humectant is present in the information carrier according to the invention in a weight ratio of humectant (s) to mass of virucidal (s) at least equal to 1.
• the information carrier according to the invention may contain at least one virucidal agent according to the present invention, at least one humectant, in particular glycerol, and in addition at least one bacteriostatic and / or bactericidal biocide. or a fungistatic and / or fungicidal biocide.
• the information carrier according to the invention may contain at least one virucidal agent according to the present invention, at least one humectant, in particular glycerol, and in addition at least one bacteriostatic biocide and / or bactericidal agent and at least one fungistatic and / or fungicidal biocide.
• Another object of the invention relates to a method of manufacturing an information carrier as defined above.
• it may be a manufacturing method comprising at least the step of bringing into contact, in the presence of at least one humectant, a base support with such a virucidal agent. natural origin in conditions conducive to the incorporation thereof at said support.
• a base support with such a virucidal agent. natural origin in conditions conducive to the incorporation thereof at said support.
• it may be necessary to use particular emulsions or solutions, for example such as solutions ammoniacal or preferably based on 2-amino-2-methyl-1-propanol which has the advantage of not generating odorous release.
• the humectant may be present in such an emulsion.
• the virucidal of natural origin may be as defined above, and in particular selected from monolaurin, lactoferrin and an essential oil with antiviral activity, such as essential oil of laurel.
• the humectant may also be as defined above, and in particular be glycerol.
• the bringing into contact and the incorporation of said virucide into the base support can be done in various ways:
• aqueous surfacing agent preferably incorporating glycerin as plasticizer
• microcapsules or cyclodextrin containing said virucide on said base support.
• the humectant is advantageously present in the composition or the solution comprising said virucide.
• said contacting and incorporation of monolaurin can be promoted by the use of a monolaurin emulsion.
• the invention relates to a method of manufacturing an information carrier in which at least one virucide of natural origin is synthesized in situ at the level of a base support formed for example of cellulosic materials. and / or plastics.
• this method may further comprise the use of a humectant, especially as defined above.
• This synthesis can in particular be carried out during at least one step of the type proposed above for bringing the virucide into contact with the base support.
• the contacting is established between the support and the precursor (s) of the virucide.
• the virucidal of natural origin may be as defined above, and in particular selected from monolaurin, lactoferrin and an essential oil with antiviral activity, such as essential oil of laurel.
• This variant embodiment is particularly suitable when the virucidal agent of natural origin is for example easily accessible by synthesis, preferably at costs that are furthermore advantageous.
• monolaurin synthesized in situ by reaction of lauric acid and glycerol in the presence of a catalyst.
• Monolaurin is indeed available commercially but at relatively high prices. Its in situ synthesis according to this variant embodiment thus makes it possible to implement it in an information carrier at a reduced cost.
• said contacting and incorporation of lauric acid can be promoted by the use of a lauric acid solution, especially such as an ammoniacal solution or preferably based on 2-amino-2-methyl-1. propanol which has the advantage of not generating odorous release.
• a lauric acid solution especially such as an ammoniacal solution or preferably based on 2-amino-2-methyl-1. propanol which has the advantage of not generating odorous release.
• the manufacturing process may comprise at least: a) the deposition on the surface of said base support, in the presence of a catalyst, of a composition containing at least lauric acid and glycerol, and b) the subsequent treatment of this support at a temperature conducive to the synthesis of monolaurin.
• the catalyst is present in the base support implemented in step a).
• the catalyst can be introduced in bulk into the fibrous base suspension during the sheet forming step while the lauric acid and glycerol can be present in a treatment solution and thus be introduced on the surface of the support .
• this catalyst may be present in the composition containing lauric acid and glycerol.
• said base support can be a support based on cellulosic materials, especially paper, and steps a) and b) can be performed simultaneously with the steps required for coating, coating or surfacing said base support.
• step b) can be carried out simultaneously with the drying step of the coated, coated or surface paper.
• This drying step may in particular be carried out at a temperature greater than or equal to 80 ° C., for example greater than or equal to 90 ° C., preferably greater than or equal to 100 ° C.
• This embodiment is particularly advantageous insofar as it makes it possible to incorporate the virucide via a conventional method of manufacturing an information carrier, in particular of the paper type, that is to say concomitantly with the conventional manufacturing steps. . It does not therefore advantageously require any additional step other than those required for the manufacture of the support.
• this process can be carried out in the presence of an antifoam agent.
• Aerotech 3514 KEMIRA CHEMISTRY SA
• Aerotech 3514 KEMIRA CHEMISTRY SA
• Such a compound may be introduced at a concentration of between 0.01% and 0.30%, preferably between 0.04% and 0.20%, and more preferably between 0.04% and 0.12% relative to total weight of the mixture of lauric acid and glycerol.
• a catalyst which is more particularly suitable for the catalysis of this reaction, mention may be made especially of zeolites, and for example zeolite A marketed by FMC Foret or lipases.
• the catalyst is a lipase
• lipase more particularly suitable in the context of the present invention, there may be mentioned for example, under the references lipases Liposyme ® RM IM, Lipozyme TL IM and resinase A2C ® ® by Novozymes.
• the information carrier according to the invention may contain from 0.5 to 3% by dry weight, for example from 0.5 to 2% by dry weight, of catalyst relative to its total weight.
• the catalyst for example zeolite, can be introduced in a proportion of at least 2% by weight, for example at least 5% by weight, relative to the total weight of the mixture of lauric acid and glycerol.
• lauric acid and glycerol may be introduced in an equimolar mixture.
• glycerol may be introduced in excess relative to lauric acid.
• this residual glycerol can act as a humectant and increase the antiviral properties.
• An example of a process for the in situ preparation of monolaurin is given in Example 3 below.
• a sheet of paper is formed on a so-called round paper machine with a fabric having a pattern for making a watermark, which paper may be suitable as paper for making a bank note, as follows:
• a wet strength agent approximately 2.5% by dry weight of a poly (amide-amine-epichlorohydrin) resin, expressed with respect to the cotton fibers is added, iridescent boards are also introduced into this suspension,
• a micro-printed security thread called "window thread”, according to prior known techniques so as to cause this thread to appear in certain windows on the surface of the paper.
• a method that can be used to introduce this yarn is described, for example, in patent EP 0 059 056, and the sheet is dried at around 100 ° C.
• a support of Example 1 is taken up and coated with a preparation carried out in an aqueous medium which comprises: - 31.2 parts by dry weight of glycerine,
• zeolite A 18.8 parts by dry weight of zeolite (zeolite A).
• the concentration of lactoferrin relative to the total coating solution is set at 4.7% by weight.
• the paper has a dry weight lactoferrin content of about 0.98 g / m 2 .
• Example 3 A support of Example 1 is taken up and coated with a preparation made in an aqueous medium which comprises:
• zeolite A 18.8 parts by dry weight of zeolite (zeolite A).
• the concentrations of glycerin and lauric acid relative to the total coating solution are set at 6.24 and 3.76% by weight, respectively.
• the paper has a dry weight ratio of monolaurin of about 1.03 g / m 2 .
• Example 4 A support of Example 1 is taken which is coated with a preparation prepared in aqueous media which comprises:
• zeolite A 18.8 parts by dry weight of monolaurin, 31.2 parts by dry weight of a PVA binder, and 18.8 parts by dry weight of zeolite (zeolite A).
• the concentration of monolaurin relative to the total coating solution is set at 3.76% by weight.
• the paper has a dry weight of monolaurin of about 1.13 g / m 2 .
• a support of Example 1 is taken up and coated with a preparation made of a polyurethane dispersion which comprises:
• emulsifier fatty alcohol ethoxylate
• the concentration of laurel essential oil with respect to the total coating solution is set at 1.6% by weight.
• the pH of the coating solution is 8.4. Once coated, the paper has a dry weight ratio of laurel essential oil of about 0.19 g / m 2 .
• Example 6 A support of Example 1 is taken which is impregnated with a preparation carried out in an aqueous medium which comprises:
• the PVA is cooked and water is added for a final volume of 950 L.
• the antiphagic activity test which is specific to the Applicant, is based on the modified JIS L 1902 standard, or on the modified ISO 20743 standard, on the MS2 phages, which are reputed to be very resistant, and applied over time. action between 18 and 24 hours.
• A [av log (C 24 ) - av log (C 0 )] - [av log (E 24 ) - av log (E 0 )] , in which formula E 24 corresponds to the number of lysis ranges at 24 hours and E 0 corresponds to the number of lysis ranges just after being placed in contact with the medium tested.
• the experimental conditions are as follows:
• the diluent used is peptone / salt (reference DIFCO, 1897-17) and the bacterial strain used is Escherichia coli Kl 2, which is a host strain of phages MS2.
• the control medium is an untreated 100% cotton textile.
• the specimen 1 is totally phagicidal, and the antiphagic activity of the specimen 2 can be calculated as follows:
• Antibacterial tests were also carried out on the information carrier obtained according to Example 6, using 2 bacterial strains, namely Staphylococcus aureus CIP 4.83 and Klebsiella pneumoniae 368 CIP.
• the bactericidal / bacteriostatic activity test is based on the standard on the ISO 20743 standard and applied to action times of between 18 and 24 hours.
• test growth (denoted by G), defined as follows:
• T m corresponds to the number of bacterial colonies at 24 hours and To corresponds to the number of bacterial colonies just after they come into contact with the support tested.
• the growth value of comparative control strains (noted F) is also determined and defined as follows:
• F (logio) mean log C t2 4 - mean log C 0 formula in which C t2 4 corresponds to the number of bacterial colonies at 24 and Co corresponds to the number of bacterial colonies just after they come into contact with the control medium.
• the value of the bacterial activity (denoted by A), defined as follows:
• the experimental conditions are as follows: The diluent used is peptone / salt (reference DIFCO, 218971) and the bacterial strain used is either Staphylococcus aureus CIP 4.83 or Klebsiella pneumoniae 368 CIP.
• the concentration of the inoculum for Staphylococcus aureus is 3.8.10 5 CFU / ml.
• the concentration of the inoculum for Klebsiella pneumoniae is 1.23 ⁇ 10 6 CFU / ml.
• control medium is an untreated 100% cotton textile. The results are reported below.
• both test pieces have a bactericidal activity.
• the base support may be a high durability security paper object of the patent application FR 2 814 476, a paper printing / writing, a tracing or a plastic ticket.

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