EP1057625A1 - Vorrichtung und Verfahren zum Aufbringen von Markierungen auf Ernährungsmittel von Silikonen und das so hergestellte Mittel - Google Patents

Vorrichtung und Verfahren zum Aufbringen von Markierungen auf Ernährungsmittel von Silikonen und das so hergestellte Mittel Download PDF

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Publication number
EP1057625A1
EP1057625A1 EP00420104A EP00420104A EP1057625A1 EP 1057625 A1 EP1057625 A1 EP 1057625A1 EP 00420104 A EP00420104 A EP 00420104A EP 00420104 A EP00420104 A EP 00420104A EP 1057625 A1 EP1057625 A1 EP 1057625A1
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EP
European Patent Office
Prior art keywords
article
silicone
coloring agent
type
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00420104A
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English (en)
French (fr)
Inventor
Pierre Grasset
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Individual
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Individual
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Publication date
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Publication of EP1057625A1 publication Critical patent/EP1057625A1/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/08—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces
    • B41F17/14—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length
    • B41F17/20—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length on articles of uniform cross-section, e.g. pencils, rulers, resistors
    • B41F17/22—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length on articles of uniform cross-section, e.g. pencils, rulers, resistors by rolling contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/006—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on curved surfaces not otherwise provided for

Definitions

  • the present invention relates to a method and an installation to achieve benchmarks on a food item in silicone, as well as a silicone food item.
  • such a food article in silicone which is for example an article of childcare, has a translucent color.
  • the present invention proposes to implement a method which allows to realize, on a silicone food item, landmarks whose conformation is unalterable and which can be discerned easily and sustainably.
  • the deposition of the coloring agent is carried out either in imprints made in the silicone food article, either directly on the smooth surface of this article.
  • This main heating step is carried out preferably for a period longer than 30 seconds and, from preferably 60 seconds at a temperature above 150 ° C and preferably at 200 ° C.
  • the invention makes it possible to achieve the objectives previously mentioned. Indeed, the use of a coloring agent for the achievement of benchmarks ensures the user of power easily discern these.
  • the main heating operation causes co-vulcanization of the first type of silicone constituting the article with the second type of silicone partially constitutive of the coloring agent, which induces a molecular bond intimate between these two materials.
  • This guarantees a indelible and unalterable character to the mark thus formed, whatever the manipulations to which is subjected the article during its use.
  • the colored marker is able to withstand very high temperatures, in the to the extent that it underwent them beforehand during its manufacture.
  • the main heating step is carried out during of the food compliance phase of said article.
  • this phase takes place in an oven, within of which the article is subjected to a temperature of about 200 ° C for four hours.
  • the article on which the benchmarks must be made is manufactured in a first conventional type of silicone, as by example, in the case of a teat, a two-component liquid silicone conforms to that marketed by BAYER under the SILOPREN LSR reference.
  • This first type of silicone is resistant to temperatures reached during the main heating mentioned above.
  • the second type of silicone which is partly the coloring agent, for example a kneadable silicone, conforms to that marketed by the company BAYER under the reference SILOPREN HV.
  • This second type must also support the temperatures to which the dye is subjected during the main heating phase.
  • both types of silicone are chemically compatible, namely that they must have such characteristics that they allow the co-vulcanization of these two types of silicone. It will thus be possible to use two liquid silicones bicomponents, or kneadable silicones.
  • one subjects the article coated with the coloring agent to a step of freezing of this coloring agent on the article.
  • This freezing contributes to operate a pre-fixing of the agent colorant on the surface of the food item, while ensuring primary co-vulcanization of the two types of silicone respectively of the food article and coloring agent.
  • This agent freezing phase dye is advantageous, since when it is carried out before the start of the compliance phase food, the food item may be subject to certain mechanical stress, before the main heating phase formation of the colored mark, without the coloring agent undergoes alteration, in particular as to its form.
  • the freezing step is carried out by prior heating of said article, for a period between 2 and 15 seconds, at a temperature between 100 and 200 ° C.
  • This Preheating is inexpensive, as long as it is implemented at a relatively low temperature, for a very short time.
  • the agent dye comprises between 85 and 95% by weight of the second type of silicone and between 5 and 15% by weight of a pigment.
  • This last is advantageously of the mineral type, in particular an iron oxide.
  • the first and second types of silicone, constitutive respectively of the article and part of the coloring agent are identical. This gives excellent quality to the co-vulcanization intervening during the heating phase main, as defined above.
  • the invention also proposes to make an installation allowing the implementation of the method as described above.
  • the invention finally relates to a food item made of a first type of silicone, in particular a teat baby bottle, characterized in that it comprises at least one marker colored formed on the surface of this item.
  • this marker is constituted by a coloring agent comprising a second type of silicone, chemically compatible with first type of silicone.
  • FIG. 1 shows a perspective view of a pacifier for baby bottles, designated as a whole by reference 2.
  • This pacifier which is made, in a known manner, first silicone type, includes a hollow cylindrical coat 4 terminated at a first end by a thinned end piece 6 or nipple shield and, at its opposite end, by a flange 8.
  • the outer periphery of dress 4 is provided with three reliefs 10, 12, 14. Reliefs 1 and 3 are spaced 90 ° apart relative to the other, while reference 2 is spaced 135 ° relative to the marks 1 and 3.
  • the relief 10 is formed by a single stick-shaped projection
  • the relief 12 is formed by two parallel stick-shaped projections
  • the relief 14 is formed by three parallel projections, in the form of rod.
  • these reliefs which originally have the same translucent color that the entire teat 2, are intended to receive a coloring agent, according to the process described below, of so as to form three corresponding colored marks.
  • these reliefs are of different shapes, in particular whether they consist of Arabic numerals or circles of increasing sizes.
  • Dress 4 is provided, at its inner periphery, with a boss 16 which is adjacent to the flange 8.
  • this boss 16 is arranged on the same diameter as one of the reliefs, in this case that that 10 formed of a single projection. As will be explained in the following, this boss 16 assumes a positioning function of the teat 2 with respect to gripping means of it.
  • FIG. 2 shows an overview of an installation of colored markers on the surface of teats analogous to that 2 described above.
  • This installation includes a conveyor, designated as a whole by the reference 18, which is provided with a vibrating rail 20 suitable for making advance teats 2 according to arrow F.
  • the downstream end of the vibrating rail 20, referring to the displacement of the teats 2 extends close to means for moving these teats, extending in a closed loop.
  • These means of displacement include an endless belt 22 which is operated by a motor not shown and which drives several pacifier holders 24, which will be shown in more detail in what follows.
  • the displacement means 22, 24 of the teats 2 extend in the vicinity successively of a device 26 allowing the transfer of the teats 2 from the vibrating rail 20 to the nipple holder 24, then of a unit 28 of depositing a coloring agent on the teats 2.
  • the strip 22 then passes through an enclosure 30 allowing the freezing of the coloring agent, deposited through the unit 28, on each nipple 2. Downstream of this enclosure 30, the endless band 22 passes over a carriage 32, which allows the transport of teats coated with the coloring agent to a non-drying oven represented.
  • FIGS 3 to 5 show, in more detail, the transfer device 26, according to three successive phases of its use.
  • This device 26 comprises a fixed frame 34, extending above the vibrating rail 20 supporting the teats 2.
  • This fixed frame 34 receives a carriage 36, movable in translation initially vertical under the effect of a pneumatic cylinder 38.
  • This carriage 36 is terminated by a clamp 40 capable of pivot around the main axis of the jack 38 via of a stepping motor 42.
  • This clamp 40 is provided with jaws 44, intended for gripping the teat 2.
  • the assembly formed by the carriage 36, the jack 38 and the clamp 40 can be rotated around a substantially horizontal axis, parallel to rail 20 via a first cylinder rotary 46.
  • the transfer device 26 is also provided with a sensor 48 able to pivot, by means of a second cylinder rotary 50, about a substantially horizontal axis, parallel to the axis of rotation of the jack 46.
  • a sensor 48 able to pivot, by means of a second cylinder rotary 50, about a substantially horizontal axis, parallel to the axis of rotation of the jack 46.
  • the nipple holder 24, onto which nipples 2 can be transferred through the device 26, is shown only schematically.
  • the carriage 36 firstly descended in the direction of the vibrating rail 20, via the jack 38. Then, the clamp 40 grips one of the teats 2, by the action of its jaws 44 on dress 4 of the nipple considered. Then, the carriage 36, provided with the teat 2, rises, under the action of the jack 38, from so as to recover its position illustrated in FIG. 3.
  • the sensor 48 is then pivoted, under the effect of the jack 50, so as to bring it in the vicinity of the integral teat 2 of the clamp 40.
  • This arrangement is illustrated in FIG. 4. It the next step is to give the teat an angular position correct for placement on the nipple holder 24, as this will be specified in the following.
  • the motor 42 is actuated, so as to make pivot the clamp 40 and, consequently, the nipple 2 around the main axis, vertical in this FIG. 4, of the jack 38.
  • the sensor detects that the boss 16 is at plumb with this sensor, namely that they are mutually aligned along the vertical axis, the rotation of the clamp 40 is stopped, as long as pacifier 2 is in a correct angular position. Teat 2 is then indexed by compared to the pacifier holder 24.
  • Figures 6 and 7 illustrate, in more detail, the nipple holder 24.
  • the latter comprises a body 52 provided with ball bearings 54 cooperating with fixed slides 56, intended for guiding this nipple holder 24 during its movement.
  • the pacifier holder is also made integral, at its opposite end to the transfer device 26, of the strip 22 allowing its displacement.
  • the body 52 of the nipple holder 24 is provided with a sliding rod 58 terminated by a finger 60.
  • Three jaws 62 are arranged at the end of the pacifier holder, adjacent to the transfer device 26. These jaws 62 form, at their opposite end to the transfer device 26, a housing 64 for receiving the sliding finger 60. This housing 64 narrows transversely, towards the transfer device 26, due to the presence of pins 66, with which the jaws are provided, which project radially towards inside of these. Each jaw 62 can enter rotation, around a corresponding transverse axis 68, located at the end of these jaws 62 opposite the transfer device 26.
  • the jaws 62 are movable between two positions, namely first of all a radially retracted position, shown at Figure 6, in which the finger 60 is arranged in the housing 64, without coming into contact with the pins 66. Then, under the action of the sliding rod 60, this finger is able to push back the pins 66, so as to radially separate the jaw 62, as illustrated in FIG. 7.
  • the final phase the transfer of the nipple 2 to the nipple holder 24 takes place in firstly arranging the jaws 62, in their radially position retracted. Then, the clamp 40 is advanced towards the pacifier holder 24, so as to put on the dress 4 of the pacifier seen around the jaws 62 in their retracted position. Then, the jaws 44 of the clamp 40 are moved aside, so as to detach the latter from the nipple 2, now disposed around the jaws 62 of the nipple holder 24.
  • the rod 58 is made to slide according to the arrow F ", in FIG. 7, so as to separate the jaws 62 under the effect of finger 60.
  • This has the effect of projecting three zones of the dress 4, by action of the jaws 62.
  • these three regions protruding by the jaws 62 are those provided with reliefs 10, 12, 14.
  • the pacifier 2 and its pacifier holder 24 are therefore angularly positioned so satisfactory for coloring reliefs 10, 12, 14.
  • the deposit unit 28 comprises a tank 70 in which quenching a wheel 72 made of an elastomeric material, with action of a member scraper 74.
  • the tank 70 contains a coloring agent 75 which comprises, for example, 88% by weight of silicone, similar to that constituting the teat 2, 10% by weight of a pigment and 2% by weight of titanium oxide, as well as traces of ethyl acetate intended to adjust the viscosity of this coloring agent.
  • Unity 28 is also provided with a granite wheel 76, in contact with the wheel 72 and rotating in the opposite direction to the latter.
  • the deposition of the coloring agent 75 is carried out by bringing, to the in the vicinity of the granited wheel 76, the nipple 2 placed on its pacifier holder 24, the reliefs 10, 12, 14 projecting under the action of the jaws 62 apart (FIG. 7).
  • a first relief 10 in contact with this wheel granita 76 so as to deposit a layer of coloring agent on the relief considered.
  • the pacifier 2, coated with layers is directed towards enclosure 30 in which a temperature of around 150 ° C prevails, each pacifier 2 staying approximately 10 seconds in this enclosure 30.
  • This "flash" heating phase induces mechanical fixation, by drying, layers of coloring agents on the reliefs correspondents 10, 12, 14. This freezing of the layers on the teats 2 allows them to be moved, manipulated or even collided without the layers being altered.
  • each pacifier holder is brought 24 provided with its teat 2 above the carriage 32.
  • Elastic means not shown then allow the jaw 62 to recover their position illustrated in FIG. 6.
  • the nipples 2 fall, for example under the effect of a push shown, in the carriage 32, which ensures their transport in direction of an oven not shown. Teats, provided with their layers of coloring agent, stay four hours in this oven, in which a neighboring temperature reigns 200 ° C.
  • This oven which is conventionally intended for give the teats their food compliance, in particular by elimination of harmful vapors due to silicone, ensures co-vulcanization constitutive silicones respectively of the teat 2 and layers of coloring agent. So at the end of passage in this oven, these layers form marks corresponding colors, which are indelible and unalterable, whatever the manipulations to which the pacifier during its subsequent use.
  • the invention is not limited to the examples described and represented. Thus, it is possible to provide the installation of several units ensuring the deposition of coloring agents different, giving the colored markers formed later distinct shades.
  • the dress of the pacifier may be devoid of reliefs, so the regions of this dress meant to come in contact with the granite wheel 76 are arbitrary. In that case, it is not necessary to provide positioning means, by indexing, of the nipple relative to the jaws 62 of the pacifier holder 24.
  • the method of the invention makes it possible to form landmarks, brands or equivalent, on silicone articles, particularly baby teats in a way that allows use of these articles in ultimate conditions of temperature and physical constraints, so the benchmark colored does not undergo more consequential alterations to its use that the article itself.

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  • Application Of Or Painting With Fluid Materials (AREA)
EP00420104A 1999-06-02 2000-05-23 Vorrichtung und Verfahren zum Aufbringen von Markierungen auf Ernährungsmittel von Silikonen und das so hergestellte Mittel Withdrawn EP1057625A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9907121 1999-06-02
FR9907121A FR2794363B1 (fr) 1999-06-02 1999-06-02 Procede et installation de realisation de reperes sur un article alimentaire en silicone et article alimentaire en silicone ainsi obtenu

Publications (1)

Publication Number Publication Date
EP1057625A1 true EP1057625A1 (de) 2000-12-06

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EP00420104A Withdrawn EP1057625A1 (de) 1999-06-02 2000-05-23 Vorrichtung und Verfahren zum Aufbringen von Markierungen auf Ernährungsmittel von Silikonen und das so hergestellte Mittel

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EP (1) EP1057625A1 (de)
FR (1) FR2794363B1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2696166A (en) * 1949-11-04 1954-12-07 Veeder Root Inc Mechanism for impressing indicia on cylindrical objects
DE2031319A1 (de) * 1969-07-29 1971-02-11 LOreal, Paris Vorrichtung zur Ernährung von Saug hngen
DE2355545A1 (de) * 1973-11-05 1975-05-22 Alpha Bebe Sante Sa Sauger mit einstellbarem durchfluss
FR2715062A1 (fr) * 1994-01-20 1995-07-21 Ott Renaud Dispositif pour la reconnnaissance facile du positionnement d'une tétine de biberon dans la bouche d'un enfant, en vue de la régulation du passage du liquide contenu dans le biberon.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2696166A (en) * 1949-11-04 1954-12-07 Veeder Root Inc Mechanism for impressing indicia on cylindrical objects
DE2031319A1 (de) * 1969-07-29 1971-02-11 LOreal, Paris Vorrichtung zur Ernährung von Saug hngen
DE2355545A1 (de) * 1973-11-05 1975-05-22 Alpha Bebe Sante Sa Sauger mit einstellbarem durchfluss
FR2715062A1 (fr) * 1994-01-20 1995-07-21 Ott Renaud Dispositif pour la reconnnaissance facile du positionnement d'une tétine de biberon dans la bouche d'un enfant, en vue de la régulation du passage du liquide contenu dans le biberon.

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FR2794363B1 (fr) 2001-08-10
FR2794363A1 (fr) 2000-12-08

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