EP4150612A1 - Laserbeschriftbares kennzeichnungsschild - Google Patents
Laserbeschriftbares kennzeichnungsschildInfo
- Publication number
- EP4150612A1 EP4150612A1 EP21725445.7A EP21725445A EP4150612A1 EP 4150612 A1 EP4150612 A1 EP 4150612A1 EP 21725445 A EP21725445 A EP 21725445A EP 4150612 A1 EP4150612 A1 EP 4150612A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- laser
- identification
- label
- identification plate
- inscribable
- 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- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/04—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps to be fastened or secured by the material of the label itself, e.g. by thermo-adhesion
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/08—Fastening or securing by means not forming part of the material of the label itself
- G09F3/14—Fastening or securing by means not forming part of the material of the label itself by strings, straps, chains, or wires
Definitions
- the invention relates to a laser-inscribable identification plate for attachment to an assembly to be identified according to the preamble of claim 1 and a method for producing a laser-inscribable identification plate.
- Such a laser-inscribable identification plate comprises an engagement opening and an engagement section which can be guided through the engagement opening.
- the identification plate is designed as a strip extending longitudinally along a longitudinal direction.
- the engaging opening and the engaging portion are longitudinally spaced from each other along the longitudinal direction.
- Such a label can be made of a polymeric plastic, for example.
- Identification plates made from a polymeric plastic should be capable of being inscribed in a permanent manner.
- Polymer plastics such as polypropylene are sometimes difficult to print, for example by means of thermal transfer printing or inkjet printing.
- pretreatment processes such as plasma activation and / or primer coating can improve the printability.
- pretreatment or coating processes have only limited long-term stability and therefore only allow a reduced shelf life, for example over a few weeks, so that prefabrication of identification plates and delivery for use and labeling by a customer is only possible to a limited extent.
- Laser-inscribable identification plates are used, for example, to mark systems or cables, in particular electrical cables. Such laser-inscribable identification plates can be used in different industrial areas, for example in the food industry, in which high demands are placed on the durability, resistance and hygiene of such laser-inscribable identification plates.
- DE 10 2004 027 622 A1 describes a laser beam marking method for marking surfaces of polymer materials.
- the method should be particularly suitable for labeling conductor labels.
- the polymer material can have particulate or fibrous fillers, for example organic fillers (carbon) or inorganic fillers (aluminum, iron).
- EP 1 108747 A1 describes a laser-markable plastic, for example for the identification and inscription of cables and lines, which has dopants in the form of powdered graphite.
- Identification plates should be able to be attached to cables or systems for marking and identification. It is desirable here to design an identification label so that it can be attached variably and easily, taking into account that uniform identification labels should be attached, for example, to different systems or cables, for example cables with different cable diameters.
- the object of the present invention is to provide a laser-inscribable identification plate and a method for producing a laser-inscribable identification plate which enable simple handling with variable usability of such an identification plate.
- the engagement section has at least one protruding section and a plurality of sections set back relative to the at least one protruding section.
- the at least one protruding section and the recessed sections are lined up alternately along the longitudinal direction.
- the identification label can for example have a marking field on which suitable lettering, for example in the form of letters, numbers, symbols or other characters, can be generated in order to appropriately identify an assembly to which the identification label is to be attached.
- the identification plate has an engagement opening and an engagement section which can be guided through the engagement opening.
- the identification label can thus be attached to an assembly to be marked, for example a cable, in that the identification label is placed around the assembly and the engagement section is guided through the engagement opening. In the attached position, the engagement section engages in the engagement opening, so that the identification label is thereby mounted on the assembly to be marked.
- the identification plate is designed as a strip extending lengthwise along a longitudinal direction. The strip can be flexible, so that the identification label can be placed around the assembly to be marked, for example a cable, in order in this way to mount the identification label on the assembly.
- the fact that the identification label is designed as an elongated strip is to be understood as meaning that the identification label has an elongated extension along the longitudinal direction.
- the strip-shaped identification plate does not necessarily have edges running parallel to one another along the longitudinal direction. Edges of the identification plate can also be curved or shaped in some other way deviating from a straight line.
- the strip-shaped identification plate here has a width along a transverse direction transverse to the longitudinal direction, which is (significantly) greater than a thickness of the identification plate.
- the identification plate thus has a flat shape.
- the engagement opening is spaced apart from the engagement section along the longitudinal direction, so that by laying the identification label around the assembly to be marked and by guiding the engagement section through the engagement opening, a loop can be formed which engages around the assembly to be marked and thus fixes the identification label to the assembly.
- the engagement section has a plurality of sidewalks which are axially aligned with one another along the longitudinal direction and are thus offset from one another and are formed by protruding and recessed sections arranged alternately with one another.
- Such waists allow a fastening engagement of the engagement portion in the engagement opening. Because a waistline lies in the engagement opening, the engagement section can be fixed axially to the engagement opening, so that the size of a loop formed by placing the identification label around the assembly to be marked is essentially fixed.
- the engagement section has a plurality of recessed sections lined up axially along the longitudinal direction and thus offset from one another to form waistlines, loops of different sizes can be formed by laying the marking strip around an assembly to be marked.
- the engagement section can form two waists which are formed by two recessed sections and a protruding section located between the recessed sections.
- the engagement section can also have more than two sidewalls, which are formed by more than two recessed sections and protruding sections lying in between.
- Each recessed section can be formed, for example, by an indentation with a rounded shape or also with an angular shape, for example a rectangular shape or a trapezoidal shape.
- the protruding sections can also have a rounded shape or an angular shape, for example a rectangular shape or a trapezoidal shape.
- Engaging portion in the engaging opening in different positions, so that loops of different sizes can be formed and that
- Identification plate can thus be attached variably to different types of assemblies, in particular systems or cables.
- the identification plate can for example be flexible, for example by being formed from a flexible, bendable film.
- the recessed sections can be formed on one side of the identification plate.
- the label is corrugated on one edge, but smooth on the opposite edge.
- the engagement section can have several recessed sections to form the sidecut on opposite sides of the identification plate that are spaced apart transversely to the longitudinal direction, so that the identification plate in the area of the engagement section has recessed, recessed sections on opposite sides to form the sidecut and thus the width of the identification plate is reduced at a waist.
- Identification plates which are used in the food industry to mark cables or systems, are usually cleaned repeatedly with comparatively aggressive cleaning agents after they have been attached, in order to exclude contamination by germs, which may impair the condition of an identification plate over its service life. It must be ensured that components of identification labels do not get into processed food, for example due to damage or destruction. The identification labels should therefore also be resistant to aggressive cleaning agents, so that material entry into food is prevented as far as possible, and it should also be ensured that components of identification labels in food can be recognized if material entry does occur.
- the identification label is made in one embodiment from a composition containing a polymeric plastic and a filler.
- a polymeric plastic is used that is mixed with a filler.
- the filler By using the filler, it is achieved, for example, that the label made from the composition can be detected and thus particles of such a label can be detected when they get into food, for example when used in the food industry.
- Contamination, for example in food, due to the entry of material on a label, caused for example by damage to or destruction of the label, for example due to cleaning of the label with an aggressive cleaning agent, can thus be detected so that process reliability can be improved in the context of food processing.
- the polymeric plastic of the composition can be, for example, polypropylene, polyethylene, PVC, TPE (thermoplastic elastomer, for example TPE-S, TPE-U (also referred to as TPU) or TPE-V (also referred to as TPV)), PP / PA, polyketone, PA, ABS, PET and / or PMMA.
- the polymeric plastic can be in the form of homopolymers (that is, polymers that are built up from only one monomer unit) and / or copolymers (that is, polymers that are composed of two or more different types of monomer).
- the polymeric plastic can be made from only one substance (e.g. polypropylene) or in the form of a blend as a mixture of several different polymers, also referred to as a polymer blend.
- the filler can, for example, have or consist of organic and / or inorganic particles.
- the filler can contain or consist of organic particles such as graphene particles, barium particles and / or barium sulfate particles.
- Organic particles can be used as fillers in their elemental form or in the form of compounds, for example in the form of their oxides or salts.
- Graphene is a modification of carbon with a two-dimensional structure, in which each carbon atom is surrounded by three additional carbon atoms at an angle of 120 °, resulting in a honeycomb-shaped pattern. Graphene therefore consists of single-layer carbon layers.
- the use of graphene as a filler can be advantageous, for example in comparison to graphite, for example to enable variable coloring (coloring) on an identification plate.
- Graphene can be detected, for example with an X-ray detection method, an inductive detection method or a magnetic detection method, so that a label made from the composition or components thereof can be recognized in a simple manner, for example in food.
- Barium or barium sulfate can in particular enable improved detectability, for example for X-ray detection.
- metallic particles such as aluminum particles or iron particles or semi-metallic particles can be used.
- Metals or semi-metals can be used in their elemental form or in the form of their alloys or compounds, for example in the form of their oxides.
- Organic and / or inorganic particles can each be used separately or in combination as filler.
- the composition containing a polymeric plastic and a filler can have a low liquid uptake.
- the proportion of filler in the composition can, for example, be between 5 percent by weight and 35 percent by weight (also referred to as mass fraction).
- Polymeric plastics such as, for example, polypropylene, cannot usually be easily marked with a laser marking system, for example using a laser with a wavelength of 1064 nm (as in the case of an Nd: YAG laser).
- a laser marking system for example using a laser with a wavelength of 1064 nm (as in the case of an Nd: YAG laser).
- a label produced from the composition it can be inscribed in particular with a laser at a wavelength of 1064 nm, for example by means of an additional additive.
- the composition may contain a colorant, for example in the form of a dye (soluble in water or another solvent) or in the form of pigments. Such a colorant can be used to color the composition in order to give a specific color to an identification label produced using the composition.
- a colorant for example in the form of a dye (soluble in water or another solvent) or in the form of pigments.
- a colorant can be used to color the composition in order to give a specific color to an identification label produced using the composition.
- the composition can in principle be colored with any color using the colorant.
- the object is also achieved by a method for producing a laser-inscribable identification plate for attachment to an assembly to be identified according to the type described above.
- the method comprises at least the following steps: providing a composition containing a polymeric plastic and a filler, and molding the identification plate from the composition.
- the composition can be provided as granules, for example.
- the granulate is further processed to produce the identification label, in particular melted, shaped into a profile or a film and optionally cut or reworked in some other way in order to obtain the identification label.
- the identification plate can be produced, for example, in one embodiment, by means of plastic injection molding.
- the identification label can be obtained by extrusion and a subsequent cutting process.
- the identification label is cut to size from a larger structural unit, for example a film or a profile part, for example using a laser for cutting or a punching process using a punching tool.
- the composition for forming the identification plate can, in one embodiment, be melted in an extrusion device and shaped into a film or profile in a molding tool.
- the film or the profile can then be fed to a calender plant, for example in the form of a roller calender.
- a roller calender can, for example, be designed to roll a flat film and for this purpose can have at least three rollers, for example.
- the identification plate can be manufactured using a film manufactured by means of extrusion and subsequent calendering.
- a film can be manufactured by the manufacturer of the label itself.
- Such a film can, however, also be produced by an external extruder with a granulate made available and made available to the manufacturer of the identification plate.
- the film can, for example, initially be obtained as a continuous film.
- the film or the profile is cut in a cutting tool in order, for example, to obtain film sections (so-called sheets).
- the cutting can take place, for example, by means of laser cutting or by means of punching using a punching tool.
- one or more identification plates with the desired shape are cut from the film or the film section. For example, several identical or different identification plates can be cut together from a (single) film section.
- a deep-drawing process is carried out in order to form an identification plate in a three-dimensional manner. If such a deep-drawing process is used before cutting, the film or the profile can be deep-drawn as a whole. If the deep drawing process is used after cutting, the obtained after cutting, first flat identification plate fed to a deep-drawing system and thus formed in a three-dimensional manner by deep-drawing.
- the identification label is inscribed after molding using a laser inscription device, for example with a laser at a wavelength of 1064 nm.
- a laser inscription device for example with a laser at a wavelength of 1064 nm.
- Such labeling can be done by the manufacturer of the identification label or, if necessary, also after the manufacturer has delivered the identification label to a customer on the part of the customer.
- the label manufactured by the manufacturer using the composition can preferably also be stored for a longer period of time, so that a longer period of time, for example longer than 6 months, can lie between the production of the label by the manufacturer and the labeling, for example by the customer.
- identification plates can also be implemented economically in small or very small series. This makes it possible to manufacture identification plates based on specific customer specifications, with reasonable process and tool costs.
- FIG. 1 shows a view of an exemplary embodiment of an identification plate in FIG.
- Fig. 2 is a view of an embodiment of an identification plate
- FIG. 3 shows a view of a production process for the production of
- the identification plate 1 shows an exemplary embodiment of an identification plate 1 which is used to mark an assembly, for example a cable 2, for example an electrical, pneumatic or hydraulic line.
- the identification plate 1 is designed as a flexible strip which is wrapped around the cable 2 and has a marking field 10 on which suitable lettering can be attached.
- a label can be any type of mark used for marking. Labeling can in particular include letters or numbers or also symbols or other marking instructions.
- the identification plate 1 is attached to the cable 2 in that the identification plate 1 is passed with one end 11 through an engagement opening 120 in the area of an end 12 of the identification plate 1 remote from the end 11.
- an engagement section 13 lies in the engagement opening 120, so that the identification label 1 forms a loop through which the cable 2 extends and by means of which the identification label 1 is thus held on the cable 2.
- the identification plate 1 which in the illustrated embodiment is designed as an elongated, flexible strip, is made of a composition which has a polymeric plastic and also a filler.
- the polymeric plastic of the composition can be, for example, polypropylene, polyethylene, PVC, TPE (thermoplastic elastomer, such as TPE-S, TPE-U and TPE-V), PP / PA, polyketone, PA, ABS, PET and / or Act PMMA.
- the polymeric plastic and thus the identification plate 1 can advantageously be laser-inscribed, in particular using a laser inscription system with a laser at a wavelength of 1064 nm.
- the filler should also enable the material of the label 1 to be detected, so that, particularly when the label 1 is used in the food industry, it can be detected whether the material of the label 1 leads to contamination in food processing, for example due to the entry of material in the event of damage or destruction of the label 1 in processed foods.
- the filler can, for example, contain or consist of organic and / or inorganic particles.
- Organic particles can be, for example, graphene particles, Be barium particles and / or barium sulfate particles.
- Inorganic particles can be, for example, metallic or semi-metallic particles, for example aluminum particles or iron particles.
- the filler can, for example, make up a proportion of 5 percent by weight to 35 percent by weight, for example 20-25 percent by weight, in the composition for producing the identification plate 1.
- the composition can be colored with a colorant, for example a dye or pigments.
- a colorant for example a dye or pigments.
- a blue coloration RAL 5012
- RAL 5012 a blue coloration
- additives for example mineral substances such as talc, can also be added to the composition, for example in order to increase the stability of the composition for the manufacture of the identification plate 1.
- FIG. 2 An exemplary embodiment of an identification plate 1 before it is attached to an assembly to be identified, for example a cable 2, is shown in FIG. 2.
- the identification plate 1 is elongated along a longitudinal direction L and is designed as a strip with essentially the same width along its length (apart from an engagement section 13 formed approximately in the center of the identification plate 1).
- a marking field 10 is provided, on which marking can be applied using a laser marking system.
- an engagement opening 120 is formed, which forms an essentially circular opening section 121 and a slot opening 122 adjoining the opening section 121 and is shaped in such a way that the identification plate 1 with the end 11 through the engagement opening 120 can be passed through in order to fix the identification label 1 on an associated assembly to be identified, for example a cable 2.
- An engagement section 13 is formed between the end 11 and the end 12, which in the illustrated embodiment has a plurality of sidewalls 131 which are lined up along the longitudinal direction L and in the region of them along a transverse direction Q, measured transversely to the longitudinal direction L, width of the identification plate 1 compared to the outer width of the strip-shaped identification plate 1 is reduced.
- the sidewalls 131 are formed by recessed sections formed on both sides of the identification plate 1.
- a recessed section on one side 14 of the identification plate 1 is assigned to an opposite recessed section on a side 15 of the identification plate 1 facing away from the side 14, so that in the area of each waist 131 the width of the identifying step 1 is reduced by indentations on both sides.
- the recessed sections on each side 14, 15 of the identification plate 1 are separated from one another by outer, projecting sections 130, so that a corrugated structure results on each side 14, 15 in the area of the engagement section 13.
- the side-by-side sidewalls 131 enable the identification label 1 to be placed around an assigned assembly, for example a cable 2, so that loops of different sizes can be formed.
- the engagement section 13 engages in the engagement opening 120, a waist 131 coming to lie in the region of the essentially circular opening section 121 of the engagement opening 120 and the size of the loop formed by the identification plate 1 being fixed. Because different waistlines 131 can be brought into engagement with the opening section 121, the size of the loop formed by the identification label 1 can be adapted and the identification label 1 can thus be attached to different assemblies, for example cables 2 with different cable diameters.
- a composition containing a polymeric plastic and a filler for example in the form of a granulate G
- an extrusion device 30 extruder
- the molding tool 31 can, for example, shape the melted material into a film F which, for example, has a width between 50 mm and 200 mm, for example 110 mm.
- the film F is fed along a feed direction to a calender unit 32, for example a 3-roll calender, which rolls the film flat, for example to a thickness between 0.5 mm and 1 mm, for example 0.8 mm.
- the film F obtained in this way is, for example, wound up as a continuous film and, if necessary, temporarily stored and then fed to cutting tools 33, 34, for example so-called CO 2 cutters, which cut the continuous film into individual pieces, for example with a length between 50 mm and 200 mm, for example 100 mm so that individual film sections S (so-called sheets) are obtained.
- cutting tools 33, 34 for example so-called CO 2 cutters, which cut the continuous film into individual pieces, for example with a length between 50 mm and 200 mm, for example 100 mm so that individual film sections S (so-called sheets) are obtained.
- the film sections S can now, on the part of the manufacturer of the film sections S or after delivery on the part of a customer, be fed to a further cutting tool 35 which cuts one or more identification plates 1 out of an individual film section S.
- the cutting tool 35 can in turn be a so-called CO 2 cutter, for example.
- the identification plates 1 obtained in this way are then fed to a laser labeling device 36 which inscribes the identification plates 1 and for this purpose applies a suitable marking to the marking field 10 of each identification plate 1.
- the labeling of the identification plates 1 can be done directly at the customer's facility, and labeling according to customer specifications can also be carried out by the manufacturer of the identification plates 1. Several weeks or months can lie between the cutting of the identification plates 1 and the labeling.
- the cutting in the cutting tool 35 can take place in such a way that the identification plates 1 are indeed cut into a film section S, but the identification plates 1 are not yet separated from one another.
- This has the advantage that several identification plates 1 can be fed to the laser inscription device 36 as a coherent film section S in order to be inscribed in the laser inscription device 36.
- the identification labels 1 can then be detached from the film section S, for example by cutting, tearing or kinking, in order to attach the identification labels 1 for marking to the respectively assigned assemblies, for example cables 2.
- the idea on which the invention is based is not restricted to the exemplary embodiments described above, but can also be implemented in a different manner.
- Identification plates of the type described can be used to identify very different assemblies and are therefore not limited to being attached to cables.
- identification plates can advantageously be laser-inscribed, so that permanent inscription is obtained which is insensitive to mechanical or chemical influences.
- the material of a label made from the composition described can have a low liquid absorption and can also be detectable, for example, using an X-ray detection method, an inductive detection method or a magnetic detection method, so that the label can be used in critical areas, for example in the food industry .
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Laser Beam Processing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020113085.6A DE102020113085A1 (de) | 2020-05-14 | 2020-05-14 | Laserbeschriftbares Kennzeichnungsschild |
| PCT/EP2021/061833 WO2021228645A1 (de) | 2020-05-14 | 2021-05-05 | Laserbeschriftbares kennzeichnungsschild |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4150612A1 true EP4150612A1 (de) | 2023-03-22 |
Family
ID=75914501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21725445.7A Withdrawn EP4150612A1 (de) | 2020-05-14 | 2021-05-05 | Laserbeschriftbares kennzeichnungsschild |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4150612A1 (de) |
| DE (1) | DE102020113085A1 (de) |
| WO (1) | WO2021228645A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021116336A1 (de) | 2021-06-24 | 2022-12-29 | Phoenix Contact Gmbh & Co. Kg | Kennzeichnungsträger |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9281603B2 (en) * | 2014-04-22 | 2016-03-08 | Mitchell J Cullins | Data connector and labeling apparatus |
| EP3422327A2 (de) * | 2017-06-30 | 2019-01-02 | Brother Kogyo Kabushiki Kaisha | Etikettenmedium und kassette |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19961304A1 (de) | 1999-12-18 | 2001-06-21 | Merck Patent Gmbh | Lasermarkierbare Kunststoffe |
| DE102004027622B4 (de) | 2004-06-05 | 2009-08-20 | Rehau Ag + Co | Laserstrahlmarkierverfahren |
-
2020
- 2020-05-14 DE DE102020113085.6A patent/DE102020113085A1/de active Pending
-
2021
- 2021-05-05 EP EP21725445.7A patent/EP4150612A1/de not_active Withdrawn
- 2021-05-05 WO PCT/EP2021/061833 patent/WO2021228645A1/de not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9281603B2 (en) * | 2014-04-22 | 2016-03-08 | Mitchell J Cullins | Data connector and labeling apparatus |
| EP3422327A2 (de) * | 2017-06-30 | 2019-01-02 | Brother Kogyo Kabushiki Kaisha | Etikettenmedium und kassette |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2021228645A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021228645A1 (de) | 2021-11-18 |
| DE102020113085A1 (de) | 2021-11-18 |
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