EP1106733A1 - Process for the application of a soothing or emollient lotion on a paper product and a paper product obtained by this process - Google Patents
Process for the application of a soothing or emollient lotion on a paper product and a paper product obtained by this process Download PDFInfo
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- EP1106733A1 EP1106733A1 EP99403111A EP99403111A EP1106733A1 EP 1106733 A1 EP1106733 A1 EP 1106733A1 EP 99403111 A EP99403111 A EP 99403111A EP 99403111 A EP99403111 A EP 99403111A EP 1106733 A1 EP1106733 A1 EP 1106733A1
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- Prior art keywords
- lotion
- paper product
- liquid vehicle
- paper
- product
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- 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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/50—Spraying or projecting
-
- 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
- D21H21/22—Agents rendering paper porous, absorbent or bulky
Definitions
- the present invention relates to a method for depositing room temperature, on an absorbent paper product, a softening lotion.
- the invention relates more particularly to a method for place at room temperature on a cotton wool product cellulose, a softening or emollient lotion which is in the state liquid at room temperature.
- Absorbent paper means cellulose wadding obtained by wet process or the so-called "ugly air” paper obtained by wet process dry and made up of paper fibers linked by a binder thermoplastic such as latex.
- the lotion to be deposited is of the type comprising one or several emollient active substances in dispersion or in emulsion in a volatile liquid vehicle, especially in water.
- a emollient lotion that gives the paper a soft, slippery feel.
- the lotion can be transferable paper to the user's skin.
- the invention finds application in the manufacture of paper products such as household papers or sanitary. Mention may be made more particularly of the papers of which the use involves direct contact with the skin and friction repeated with it, such as tissues disposable, toilet paper or any other paper product intended for wiping the skin, cleansing towels, wipes dry, etc.
- the invention also relates to a paper product obtained. according to the process.
- the process used to depositing the lotion moistens the paper product as little as possible, which is inherently absorbent, in particular to avoid loss mechanical properties of the product during rewinding involved in the production cycle after the deposit stage of the lotion, and also to avoid degradation of the product during its storage after production.
- the lotion and the materials are distributed in the most homogeneous and even on the surface of the product.
- One of the other qualities of a paper product on which an emollient lotion has been deposited is the ability of the lotion present on the product, and in particular the active ingredients which it contains, to be transferred in whole or in part to the skin of the user, even when a small amount of active ingredients has been applied to the surface of the product, which is moreover desirable for the economic reasons mentioned above, in particular when this amount is less than 3 g / m 2 of surface of the product. product.
- the invention proposes a process for depositing at room temperature on a product absorbent stationer, in particular in cellulose wadding, a lotion softening or emollient, liquid at room temperature, type comprising one or more active ingredient (s) emollient (s) in dispersion or emulsion in a vehicle volatile liquid, especially in water, characterized in that it consists in spraying the lotion by means of a gas flow under pressure to eliminate at least part of the vehicle volatile liquid to form and project fine droplets of lotion, the proportion of which in volatile liquid vehicle is reduced, which are deposited on at least one side of the paper product.
- Spraying technique by atomization by means of a pressurized gas, which is preferably air under pressure, is implemented in the context of the invention according to a process which is different, even contradictory, with those usually used for example for the application industrial painting.
- the volatile liquid vehicle is partially extracted during the spraying step.
- an extraction cabin is used in order to partially extract the vaporized liquid vehicle (water) and eliminate external pollution.
- the pressure of the spray gas is greater than 2 bars, and preferably greater than 4 bars.
- the proportion by weight of active ingredient (s) in the lotion is between 1% and 50%, preferably between between 20% and 50% and more particularly equal to around 30%.
- Active ingredients are emollient components solid or semi-solid, in particular of the type described in WO-A-97/30216 or WO-A-97/30217.
- the liquid vehicle is preferably water, but it can also be another volatile liquid vehicle such as for example alcohols (methanol, ethanol), glycol ethers, etc.
- the technical control of the process notably consists in optimize the various operating parameters of a spraying equipment, including the choice of spray nozzle spraying, air pressure and air / lotion ratio, depending on the composition of the solution. It is also important to adjust the positioning of the nozzle relative to the paper as well that its orientation and the shape of the jet obtained, i.e. its width and its "flattening".
- the installation 10 comprises a frame or chassis which carries certain elements and apparatus for implementing the process for depositing the lotion on a sheet of paper 14.
- the sheet 14 scrolls continuously along the path indicated by the arrows of the figure so as to traverse the zone of spraying and depositing 16 vertically from top to bottom according to the example shown.
- the spraying means consist of a boom 18 of 20 spray guns which are arranged so adjacent according to the width of the paper width.
- Each pistol 20 has an inlet 22 for supplying spray lotion which is connected, by a pipe 24, to a container 26 of lotion comprising a mixer 28.
- a feed pump 30 is interposed between the tank 26 and each gun 20, the pump being at variable flow controlled.
- Each gun 20 is supplied with atomizing air, at controlled variable pressure, by a pipe 32 connected to an air inlet 34 of the gun, and in control air by a line 36 connected to an inlet 38 of the gun 20.
- Installation 10 includes cabins or boxes extraction 40, arranged at the rear of the width of the paper 14.
- These extraction boxes 40 are connected to a fan outside 42 to create suction and depression inside in the vicinity of the spraying zone 16, the suction taking place through a filter 44.
- the suction surface delimited by the filter 44 and vertically oriented is adjacent to the paper that passes through vertical scrolling of the spray area 16.
- the installation 10 also includes another box suction 46 connected to an external fan 48 and provided with a filter 50 to aspirate the lotion which falls vertically without being deposited on paper 14.
- the invention also relates to a paper product on at least one side of which an emollient lotion has been applied using the method according to the invention, characterized in that the quantity of lotion applied to said face is equal to at least 1.5 g / m 2 , preferably at least 2g / m 2 , and in that the lotion present on said face is easily transferable to the skin of a user of the paper product.
- Table A relates to a first series of tests carried out on the depositor's paper of the "facial" type having a grammage of 45 g / m 2 "and aimed at carrying out a theoretical deposit of 2.6 g / m 2 of a lotion in the form of an aqueous dispersion whose viscosity is equal to 380cP and whose density is equal to 180g / 250ml.
- the application of the lotion was carried out on a pilot machine with a width of 42cm wide and a paper running speed equal to 70 m / min, the spray nozzle being located 40 cm from the sheet of paper This test was carried out without extraction.
- the lotion used contains 30% by weight of materials active.
- the witness corresponds to a paper without application of lotion.
- the amount of water "eliminated” is very important since it is between approximately 40% and 60% of the total water.
- Table B relates to a second series of tests carried out under the same conditions but aimed at carrying out a theoretical deposit of 4.0 g / m 2 of the lotion.
- the third table C below is representative of the quality of distribution of lotion deposits on the surface of the paper to which the lotion was applied according to the method of the invention.
- test C1 The last three tests in the table were carried out by the rotor spraying process, successively applying a theoretical amount of lotion equal to 1.0 g / m 2 (test C1), 1.4 g / m 2 (test C2) and 2.6 g / m 2 (test C3).
- Tests A1 to B5 very clearly show the very great dimensional homogeneity of the deposits and the almost uniformity of the distribution of these deposits on the surface, in particular if we compare these results with those obtained according to the rotor spraying process (tests C1 to C3).
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Abstract
Description
La présente invention concerne un procédé pour déposer à température ambiante, sur un produit papetier absorbant, une lotion adoucissante.The present invention relates to a method for depositing room temperature, on an absorbent paper product, a softening lotion.
L'invention concerne plus particulièrement un procédé pour déposer à température ambiante, sur un produit en ouate de cellulose, une lotion adoucissante ou émolliente qui est à l'état liquide à la température ambiante.The invention relates more particularly to a method for place at room temperature on a cotton wool product cellulose, a softening or emollient lotion which is in the state liquid at room temperature.
On entend par papier absorbant, la ouate de cellulose obtenue par voie humide ou le papier dit "air laid" obtenu par voie sèche et constitué de fibres papetières liées par un liant thermoplastique tel qu'un latex.Absorbent paper means cellulose wadding obtained by wet process or the so-called "ugly air" paper obtained by wet process dry and made up of paper fibers linked by a binder thermoplastic such as latex.
La lotion à déposer est du type comprenant une ou plusieurs matières actives émollientes en dispersion ou en émulsion dans un véhicule liquide volatile, notamment dans de l'eau.The lotion to be deposited is of the type comprising one or several emollient active substances in dispersion or in emulsion in a volatile liquid vehicle, especially in water.
De manière générale, il est souhaitable de pouvoir appliquer, sur au moins une surface du produit papetier, une lotion émolliente qui donne au papier un toucher doux, glissant.In general, it is desirable to be able to apply, on at least one surface of the paper product, a emollient lotion that gives the paper a soft, slippery feel.
De manière avantageuse, la lotion peut être transférable du papier à la peau de l'utilisateur.Advantageously, the lotion can be transferable paper to the user's skin.
L'invention trouve application dans la fabrication des produits papetiers tels que les papiers à usage domestique ou sanitaire. On peut citer plus particulièrement les papiers dont l'utilisation implique un contact direct avec la peau et des frottements répétés avec celle -ci, tels que les mouchoirs en papier jetables, le papier toilette ou encore tout autre produit en papier destiné à essuyer la peau, serviettes à démaquiller, lingettes sèches, etc..The invention finds application in the manufacture of paper products such as household papers or sanitary. Mention may be made more particularly of the papers of which the use involves direct contact with the skin and friction repeated with it, such as tissues disposable, toilet paper or any other paper product intended for wiping the skin, cleansing towels, wipes dry, etc.
L'invention concerne aussi un produit papetier obtenu selon le procédé.The invention also relates to a paper product obtained. according to the process.
On a décrit dans les documents WO-A-97/30216 et WO-A-97/30.217 des exemples de telles compositions aqueuses.WO-A-97/30216 and WO-A-97 / 30.217 examples of such aqueous compositions.
En dehors de la composition proprement dite d'une telle lotion aqueuse, les conditions dans lesquelles elle est déposée à la surface du produit absorbant, ainsi que la quantité et l'état physique des matières actives présentes à la surface du produit, sont déterminants pour la satisfaction de l'utilisateur.Apart from the actual composition of such aqueous lotion, the conditions under which it is deposited the area of the absorbent product, as well as the quantity and condition physical active ingredients present on the surface of the product, are decisive for user satisfaction.
Il est en effet souhaitable que le procédé utilisé pour déposer la lotion humidifie le moins possible le produit papetier, qui est par nature absorbant, afin notamment d'éviter une perte des propriétés mécaniques du produit lors du rembobinage intervenant dans le cycle de production après l'étape de dépôt de la lotion, et aussi pour éviter la dégradation du produit lors de son stockage après sa production.It is indeed desirable that the process used to depositing the lotion moistens the paper product as little as possible, which is inherently absorbent, in particular to avoid loss mechanical properties of the product during rewinding involved in the production cycle after the deposit stage of the lotion, and also to avoid degradation of the product during its storage after production.
Pour que le caractère émollient ou adoucissant du produit soit bien perçu, il est souhaitable que la lotion et les matières actives soient réparties de la manière la plus homogène et la plus régulière à la surface du produit.So that the emollient or softening character of the product is well received, it is desirable that the lotion and the materials are distributed in the most homogeneous and even on the surface of the product.
Afin que le processus de fabrication soit économique, il est nécessaire de ne pas perdre de lotion, c'est à dire d'éviter que, lors du dépôt, une quantité de lotion, et donc de matières actives, ne pénètre trop profondément à l'intérieur du produit papetier pour demeurer dans la structure fibreuse et être ainsi "perdu" du point de vue de l'effet émollient perçu par l'utilisateur.In order for the manufacturing process to be economical, it is necessary not to lose lotion, i.e. to avoid that, during the deposition, a quantity of lotion, and therefore of active ingredients, does not penetrate too deeply inside the paper product to remain in the fibrous structure and thus be "lost" from point of view of the emollient effect perceived by the user.
Une des autres qualités d'un produit papetier sur lequel on a déposé une lotion émolliente est la capacité de la lotion présente sur le produit, et notamment les matières actives qu'elle contient, à être transférée pour tout ou partie sur la peau de l'utilisateur, et ceci même lorsqu'une faible quantité de matières actives a été appliquée à la surface du produit, ce qui est par ailleurs souhaitable pour les raisons économiques évoquées cidessus, notamment lorsque cette quantité est inférieure à 3g/m2 de surface du produit.One of the other qualities of a paper product on which an emollient lotion has been deposited is the ability of the lotion present on the product, and in particular the active ingredients which it contains, to be transferred in whole or in part to the skin of the user, even when a small amount of active ingredients has been applied to the surface of the product, which is moreover desirable for the economic reasons mentioned above, in particular when this amount is less than 3 g / m 2 of surface of the product. product.
Des bonnes capacités de transfert sont obtenues lorsque l'on utilise un procédé d'application d'une lotion qui est à l'état solide à température ambiante du type mentionné dans les documents WO-A-95/35411 ou WO-A-96/24722.Good transfer capacities are obtained when we use a method of applying a lotion which is in the state solid at room temperature of the type mentioned in WO-A-95/35411 or WO-A-96/24722.
Dans tous les cas, il est nécessaire de disposer de moyens de chauffage de la solution pour qu'elle passe de son état solide à un état liquide dans lequel elle peut être appliquée, par exemple par pulvérisation à basse pression, par enduction, de préférence par impression flexographique, par rotogravure ou encore par extrusion ou par combinaison d'une pulvérisation de la lotion sur un cylindre de transfert d'un film de lotion qui est ensuite appliqué sur la surface du produit par calandrage.In all cases, it is necessary to have means of heating the solution so that it passes from its solid state to a liquid state in which it can be applied, for example by spraying at low pressure, by coating, preferably by flexographic printing, by rotogravure or by extrusion or by combining a spray of the lotion on a lotion film transfer cylinder which is then applied on the surface of the product by calendering.
Le document WO-A-99/08555 évoque d'autres exemples de mise en oeuvre d'une lotion solide à température ambiante par chauffage préalable au-dessus de sa température de fusion, application par exemple par rotogravure en des dépôts espacés à la surface du produit, puis solidification à nouveau des dépôts de lotion fondue.Document WO-A-99/08555 mentions other examples of implementation of a solid lotion at room temperature by pre-heating above its melting temperature, application for example by rotogravure in spaced deposits at the surface of the product, then solidification again of the deposits of melted lotion.
Dans le cas d'une lotion aqueuse qui est à l'état liquide à la température ambiante, une technique utilisée est la pulvérisation par rotors.In the case of an aqueous lotion which is in the liquid state at room temperature, a technique used is rotor spraying.
D'une manière générale, les exemples connus de mise en oeuvre industrielle d'une lotion aqueuse liquide à température ambiante présente des inconvénients mentionnés précédemment, et notamment la perte de produit à l'intérieur de la structure fibreuse et l'humidification trop importante de ce dernier.In general, the known examples of implementation industrial work of an aqueous liquid lotion at temperature room has the drawbacks mentioned above, and in particular the loss of product inside the structure fibrous and excessive humidification of the latter.
Le document WO-A-99/19081 est relatif à l'application par pulvérisation d'une composition à un matériau en feuille(s). S'agissant des produits papetiers, ce document évoque (page 8, ligne 2 à page 9, ligne 8) tous les problèmes et difficultés inhérents à la nature absorbante du support papier et propose, à titre de solution, de renoncer à la technique de pulvérisation par atomisation en faisant appel à la pressurisation préalable d'un mélange comportant un fluide comprimé.Document WO-A-99/19081 relates to the application by spraying a composition with a sheet material (s). Regarding paper products, this document mentions (page 8, line 2 to page 9, line 8) all problems and difficulties inherent in the absorbent nature of the paper backing and offers, to title of solution, to give up the spray technique by atomization using prior pressurization of a mixture comprising a compressed fluid.
Malgré ces difficultés et préjugés, l'invention propose un procédé pour déposer à température ambiante sur un produit papetier absorbant, notamment en ouate de cellulose, une lotion adoucissante ou émolliente, liquide à température ambiante, du type comprenant une ou plusieurs matière(s) active(s) émolliente(s) en dispersion ou en émulsion dans un véhicule liquide volatile, notamment dans de l'eau, caractérisé en ce qu'il consiste à pulvériser la lotion au moyen d'un flux de gaz sous pression de manière à éliminer au moins une partie du véhicule liquide volatile pour former et projeter de fines gouttelettes de lotion, dont la proportion en véhicule liquide volatile est réduite, qui se déposent sur au moins une face du produit papetier.Despite these difficulties and prejudices, the invention proposes a process for depositing at room temperature on a product absorbent stationer, in particular in cellulose wadding, a lotion softening or emollient, liquid at room temperature, type comprising one or more active ingredient (s) emollient (s) in dispersion or emulsion in a vehicle volatile liquid, especially in water, characterized in that it consists in spraying the lotion by means of a gas flow under pressure to eliminate at least part of the vehicle volatile liquid to form and project fine droplets of lotion, the proportion of which in volatile liquid vehicle is reduced, which are deposited on at least one side of the paper product.
La technique de pulvérisation par atomisation au moyen d'un gaz sous pression, qui est de préférence de l'air sous pression, est mise en oeuvre dans le cadre de l'invention selon un procédé qui est différent, voire contradictoire, avec ceux habituellement mis en oeuvre par exemple pour l'application industrielle de peintures.Spraying technique by atomization by means of a pressurized gas, which is preferably air under pressure, is implemented in the context of the invention according to a process which is different, even contradictory, with those usually used for example for the application industrial painting.
En effet, dans ce dernier cas, la pulvérisation au moyen d'un vaporisateur ou atomiseur à pour but de disperser la peinture, qui est une couleur préparée avec un véhicule liquide, en fines gouttelettes qui se déposent sur la surface à peindre, mais sans dessécher la peinture, la présence de la quasi-totalité du véhicule liquide à la surface du produit à peindre étant nécessaire à l'obtention d'une couche homogène de peinture, notamment en épaisseur, cette homogénéité et l'aspect final de la peinture résultant de la formation d'un film qui se tend par évaporation du véhicule liquide lors du séchage de la peinture.Indeed, in the latter case, spraying by means the purpose of a vaporizer or atomizer to disperse the paint, which is a color prepared with a liquid vehicle, in fine droplets which are deposited on the surface to be painted, but without drying out the paint, the presence of almost all of the liquid vehicle on the surface of the product to be painted being necessary to obtain a homogeneous layer of paint, especially in thickness, this homogeneity and the final appearance of the paint resulting from the formation of a film which stretches by evaporation of the liquid vehicle when the paint dries.
Selon l'invention, la plus grande partie du véhicule liquide, notamment de l'eau est éliminée par vaporisation.According to the invention, most of the liquid vehicle, in particular, water is eliminated by vaporization.
Le véhicule liquide volatile est extrait en partie lors de l'étape de pulvérisation.The volatile liquid vehicle is partially extracted during the spraying step.
De préférence, on utilise une cabine d'extraction afin d'extraire en partie le véhicule liquide vaporisé (l'eau) et d'éliminer les pollutions extérieures.Preferably, an extraction cabin is used in order to partially extract the vaporized liquid vehicle (water) and eliminate external pollution.
Selon l'invention, la pression du gaz de pulvérisation est supérieure à 2 bars, et de préférence supérieure à 4 bars.According to the invention, the pressure of the spray gas is greater than 2 bars, and preferably greater than 4 bars.
La proportion en poids de matière(s) active(s) dans la lotion est comprise entre 1% et 50%, de préférence comprise entre 20% et 50% et plus particulièrement égale à environ 30%. The proportion by weight of active ingredient (s) in the lotion is between 1% and 50%, preferably between between 20% and 50% and more particularly equal to around 30%.
Les matières actives sont des composants émollients solides ou semi-solides, notamment du type de ceux décrits dans les documents WO-A-97/30216 ou WO-A-97/30217.Active ingredients are emollient components solid or semi-solid, in particular of the type described in WO-A-97/30216 or WO-A-97/30217.
Le véhicule liquide est de préférence de l'eau, mais il peut aussi être un autre véhicule liquide volatile tel que par exemple des alcools (méthanol, éthanol), des glycol éthers, etc.The liquid vehicle is preferably water, but it can also be another volatile liquid vehicle such as for example alcohols (methanol, ethanol), glycol ethers, etc.
La maítrise technique du procédé consiste notamment à optimiser les différents paramètres de fonctionnement d'un matériel de pulvérisation, notamment le choix de la buse de pulvérisation, de la pression de l'air et de la proportion air/lotion, en fonction de la composition de la solution. Il est aussi important de régler le positionnement de la buse par rapport au papier ainsi que son orientation et la forme du jet obtenu, c'est à dire sa largeur et son "aplatissement".The technical control of the process notably consists in optimize the various operating parameters of a spraying equipment, including the choice of spray nozzle spraying, air pressure and air / lotion ratio, depending on the composition of the solution. It is also important to adjust the positioning of the nozzle relative to the paper as well that its orientation and the shape of the jet obtained, i.e. its width and its "flattening".
On décrira maintenant, en référence à la figure unique du dessin annexé, un exemple de réalisation d'une installation pour la mise en oeuvre du procédé selon l'invention.We will now describe, with reference to the single figure of attached drawing, an example of an installation for the implementation of the method according to the invention.
Comme on peut le voir sur cette figure unique, l'installation
10 comporte un bâti ou châssis qui porte certains éléments et
appareils pour la mise en oeuvre du procédé pour déposer la
lotion sur une feuille de papier 14.As can be seen in this unique figure, the
La feuille 14 défile en continu selon le trajet indiqué par les
flèches de la figure de manière à parcourir la zone de
pulvérisation et de dépôt 16 verticalement de haut en bas selon
l'exemple représenté.The
Les moyens de pulvérisation sont constitués par une rampe
18 de pistolets 20 de pulvérisation qui sont disposés de manière
adjacente selon la largeur de la laize de papier. Chaque pistolet
20 comporte une entrée 22 d'alimentation en lotion à pulvériser
qui est reliée, par une canalisation 24, à un bac 26 de lotion
comportant un mélangeur 28. Une pompe d'alimentation 30 est
interposée entre le bac 26 et chaque pistolet 20, la pompe étant à
débit variable commandé. The spraying means consist of a
Chaque pistolet 20 est alimenté en air d'atomisation, à
pression variable commandée, par une canalisation 32 reliée à
une entrée d'air 34 du pistolet, et en air de commande par une
canalisation 36 reliée à une entrée 38 du pistolet 20.Each
L'installation 10 comporte des cabines ou caissons
d'extraction 40, disposés à l'arrière de la laize du papier 14.
Ces caissons d'extraction 40 sont reliés à un ventilateur
extérieur 42 pour créer une aspiration et une mise en dépression
à l'intérieur au voisinage de la zone d'aspersion 16, l'aspiration
s'effectuant à travers un filtre 44.These
La surface d'aspiration délimitée par le filtre 44 et
d'orientation verticale est adjacente au papier qui traverse par
défilement vertical la zone d'aspersion 16.The suction surface delimited by the
L'installation 10 comporte également un autre caisson
d'aspiration 46 relié à un ventilateur extérieur 48 et muni d'un
filtre 50 pour aspirer la lotion qui tombe verticalement sans être
déposée sur le papier 14.The
L'invention concerne aussi un produit papetier sur au moins une face duquel on a appliqué une lotion émolliente grâce au procédé selon l'invention, caractérisé en ce que la quantité de lotion appliquée sur ladite face est égale à au moins 1,5 g/m2, de préférence au moins 2g/m2, et en ce que la lotion présente sur la dite face est aisément transférable sur la peau d'un utilisateur du produit papetier.The invention also relates to a paper product on at least one side of which an emollient lotion has been applied using the method according to the invention, characterized in that the quantity of lotion applied to said face is equal to at least 1.5 g / m 2 , preferably at least 2g / m 2 , and in that the lotion present on said face is easily transferable to the skin of a user of the paper product.
On décrira maintenant des exemples de résultats d'essais obtenus par la mise en oeuvre du procédé selon l'invention en référence notamment aux trois tableaux annexés à la fin de la description.We will now describe examples of test results. obtained by implementing the method according to the invention in reference in particular to the three tables annexed at the end of the description.
Le tableau A est relatif à une première série d'essais réalisés sur un papier du déposant de type "facial" ayant un grammage de 45 g/m2" et visant à effectuer un dépôt théorique de 2,6 g/m2 d'une lotion sous la forme d'une dispersion aqueuse dont la viscosité est égale à 380cP et dont la masse volumique est égale à 180g/250ml. L'application de la lotion a été effectuée sur une machine pilote avec une laize de 42cm de large et une vitesse de défilement du papier égale à 70m/min, la buse de pulvérisation étant située à 40cm de la feuille de papier. Cet essai a été effectué sans extraction.Table A relates to a first series of tests carried out on the depositor's paper of the "facial" type having a grammage of 45 g / m 2 "and aimed at carrying out a theoretical deposit of 2.6 g / m 2 of a lotion in the form of an aqueous dispersion whose viscosity is equal to 380cP and whose density is equal to 180g / 250ml. The application of the lotion was carried out on a pilot machine with a width of 42cm wide and a paper running speed equal to 70 m / min, the spray nozzle being located 40 cm from the sheet of paper This test was carried out without extraction.
La lotion utilisée contient 30% en poids de matières actives.The lotion used contains 30% by weight of materials active.
Le témoin correspond à un papier sans application de lotion.The witness corresponds to a paper without application of lotion.
Comme on peut le constater, la quantité d'eau "éliminée" est très importante puisqu'elle est comprise entre environ 40% et 60% de l'eau totale.As you can see, the amount of water "eliminated" is very important since it is between approximately 40% and 60% of the total water.
Le tableau B est relatif à une seconde série d'essais réalisés dans les mêmes conditions mais visant à effectuer un dépôt théorique de 4,0 g/m2 de la lotion.Table B relates to a second series of tests carried out under the same conditions but aimed at carrying out a theoretical deposit of 4.0 g / m 2 of the lotion.
Comme on peut le constater, la "perte" globale en eau diminue, par rapport aux essais du tableau A, lorsque la quantité de lotion appliquée augmente.As can be seen, the overall "loss" in water decreases, compared to the tests in Table A, when the quantity of applied lotion increases.
Le troisième tableau C ci-dessous est représentatif de la qualité de répartition des dépôts de lotion à la surface du papier auquel a été appliquée la lotion selon le procédé de l'invention.The third table C below is representative of the quality of distribution of lotion deposits on the surface of the paper to which the lotion was applied according to the method of the invention.
Les données de ce tableau ont été obtenues en utilisant une lotion volontairement colorée afin de faire apparaítre les dépôts de lotion sous la forme de "taches" que l'on peut ensuite compter.The data in this table were obtained using a deliberately colored lotion in order to reveal the deposits of lotion in the form of "spots" which can then be count.
Les trois derniers essais du tableau ont été réalisés par le procédé de pulvérisation par rotors en appliquant successivement une quantité théorique de lotion égale à 1,0 g/m2 (essai C1), 1,4 g/m2 (essai C2) et 2,6 g/m2 (essai C3).The last three tests in the table were carried out by the rotor spraying process, successively applying a theoretical amount of lotion equal to 1.0 g / m 2 (test C1), 1.4 g / m 2 (test C2) and 2.6 g / m 2 (test C3).
Les essais A1 à B5 font très clairement apparaítre la très
grande homogénéité dimensionnelle des dépôts et la quasiuniformité
de la répartition de ces dépôts à la surface, notamment
si l'on compare ces résultats avec ceux obtenus selon le procédé
de pulvérisation par rotors (essais C1 à C3).
Claims (7)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP99403111A EP1106733A1 (en) | 1999-12-10 | 1999-12-10 | Process for the application of a soothing or emollient lotion on a paper product and a paper product obtained by this process |
| EP20000403370 EP1108814B1 (en) | 1999-12-10 | 2000-12-01 | Process for the application of a soothing or emollient lotion on a paper product and a paper product obtained by this process |
| DE60037172T DE60037172D1 (en) | 1999-12-10 | 2000-12-01 | A method of applying a softener lotion to a paper product and a paper product made by this method |
| US09/729,224 US6740329B2 (en) | 1999-12-10 | 2000-12-05 | Process for applying a softening or emollient lotion to a paper product and paper product obtained according to this process |
| CA002327923A CA2327923C (en) | 1999-12-10 | 2000-12-08 | Process for applying a softening or emollient lotion to a paper product and paper product obtained according to this process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP99403111A EP1106733A1 (en) | 1999-12-10 | 1999-12-10 | Process for the application of a soothing or emollient lotion on a paper product and a paper product obtained by this process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1106733A1 true EP1106733A1 (en) | 2001-06-13 |
Family
ID=8242214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99403111A Withdrawn EP1106733A1 (en) | 1999-12-10 | 1999-12-10 | Process for the application of a soothing or emollient lotion on a paper product and a paper product obtained by this process |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6740329B2 (en) |
| EP (1) | EP1106733A1 (en) |
| CA (1) | CA2327923C (en) |
| DE (1) | DE60037172D1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7169400B2 (en) | 2002-05-07 | 2007-01-30 | Fort James Corporation | Waterless lotion and lotion-treated substrate |
| US8012495B2 (en) * | 2002-05-07 | 2011-09-06 | Georgia-Pacific Consumer Products Lp | Lotion-treated tissue and towel |
| MXPA05003858A (en) | 2002-10-17 | 2005-06-22 | Procter & Gamble | Tissue paper softening compositions and tissue papers comprising the same. |
| EP1529879A1 (en) * | 2003-11-06 | 2005-05-11 | SCA Hygiene Products GmbH | Tissue paper having an irregular coloured pattern |
| FR2862200B1 (en) * | 2003-11-14 | 2006-09-01 | Georgia Pacific France | PRODUCT IN FIBROUS MATERIAL CONFER A FEELING OF FRESHNESS TO ITS CONTACT |
| US20080008865A1 (en) * | 2006-06-23 | 2008-01-10 | Georgia-Pacific Consumer Products Lp | Antimicrobial hand towel for touchless automatic dispensers |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997030217A1 (en) * | 1996-02-19 | 1997-08-21 | Fort James France | Softening lotion composition, use thereof in paper making, and resulting paper product |
| WO1997030216A1 (en) * | 1996-02-19 | 1997-08-21 | Fort James France | Softening lotion composition, use thereof in paper making, and resulting paper product |
| US5705164A (en) * | 1995-08-03 | 1998-01-06 | The Procter & Gamble Company | Lotioned tissue paper containing a liquid polyol polyester emollient and an immobilizing agent |
| WO1999016974A1 (en) * | 1997-10-01 | 1999-04-08 | The Procter & Gamble Company | Soft tissue paper having a softening composition containing an electrolyte deposited thereon |
| WO1999019081A1 (en) * | 1997-10-10 | 1999-04-22 | Union Carbide Chemicals & Plastics Technology Corporation | Spray application of an additive composition to sheet materials |
-
1999
- 1999-12-10 EP EP99403111A patent/EP1106733A1/en not_active Withdrawn
-
2000
- 2000-12-01 DE DE60037172T patent/DE60037172D1/en not_active Expired - Lifetime
- 2000-12-05 US US09/729,224 patent/US6740329B2/en not_active Expired - Fee Related
- 2000-12-08 CA CA002327923A patent/CA2327923C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5705164A (en) * | 1995-08-03 | 1998-01-06 | The Procter & Gamble Company | Lotioned tissue paper containing a liquid polyol polyester emollient and an immobilizing agent |
| WO1997030217A1 (en) * | 1996-02-19 | 1997-08-21 | Fort James France | Softening lotion composition, use thereof in paper making, and resulting paper product |
| WO1997030216A1 (en) * | 1996-02-19 | 1997-08-21 | Fort James France | Softening lotion composition, use thereof in paper making, and resulting paper product |
| WO1999016974A1 (en) * | 1997-10-01 | 1999-04-08 | The Procter & Gamble Company | Soft tissue paper having a softening composition containing an electrolyte deposited thereon |
| WO1999019081A1 (en) * | 1997-10-10 | 1999-04-22 | Union Carbide Chemicals & Plastics Technology Corporation | Spray application of an additive composition to sheet materials |
Also Published As
| Publication number | Publication date |
|---|---|
| US20010006676A1 (en) | 2001-07-05 |
| US6740329B2 (en) | 2004-05-25 |
| CA2327923A1 (en) | 2001-06-10 |
| CA2327923C (en) | 2009-07-07 |
| DE60037172D1 (en) | 2008-01-03 |
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