EP0991523B1 - Lasermarkierbare kunststoffe - Google Patents
Lasermarkierbare kunststoffe Download PDFInfo
- Publication number
- EP0991523B1 EP0991523B1 EP98929407A EP98929407A EP0991523B1 EP 0991523 B1 EP0991523 B1 EP 0991523B1 EP 98929407 A EP98929407 A EP 98929407A EP 98929407 A EP98929407 A EP 98929407A EP 0991523 B1 EP0991523 B1 EP 0991523B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- laser
- plastic
- markable
- plastics according
- markable plastics
- 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.)
- Expired - Lifetime
Links
- 229920003023 plastic Polymers 0.000 title claims description 71
- 239000004033 plastic Substances 0.000 title claims description 71
- 229920000642 polymer Polymers 0.000 claims description 30
- 239000000049 pigment Substances 0.000 claims description 27
- -1 polyethylene Polymers 0.000 claims description 23
- 239000002245 particle Substances 0.000 claims description 18
- 239000006096 absorbing agent Substances 0.000 claims description 13
- 229920001155 polypropylene Polymers 0.000 claims description 11
- 239000004743 Polypropylene Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 10
- 229920002647 polyamide Polymers 0.000 claims description 10
- 229920006324 polyoxymethylene Polymers 0.000 claims description 10
- 239000004952 Polyamide Substances 0.000 claims description 9
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 9
- 229920000573 polyethylene Polymers 0.000 claims description 9
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 9
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 9
- 229920002635 polyurethane Polymers 0.000 claims description 9
- 239000004814 polyurethane Substances 0.000 claims description 9
- 239000004698 Polyethylene Substances 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 7
- 229920000106 Liquid crystal polymer Polymers 0.000 claims description 5
- 239000004793 Polystyrene Substances 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 229920000728 polyester Polymers 0.000 claims description 5
- 239000004642 Polyimide Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229920001721 polyimide Polymers 0.000 claims description 4
- 229920002223 polystyrene Polymers 0.000 claims description 4
- 150000003457 sulfones Chemical class 0.000 claims description 4
- RAOSIAYCXKBGFE-UHFFFAOYSA-K [Cu+3].[O-]P([O-])([O-])=O Chemical compound [Cu+3].[O-]P([O-])([O-])=O RAOSIAYCXKBGFE-UHFFFAOYSA-K 0.000 claims description 3
- 229910052787 antimony Inorganic materials 0.000 claims description 3
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 3
- 229920012287 polyphenylene sulfone Polymers 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims description 3
- RJDOZRNNYVAULJ-UHFFFAOYSA-L [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] RJDOZRNNYVAULJ-UHFFFAOYSA-L 0.000 claims description 2
- OHMUBWQNHUTKMH-UHFFFAOYSA-L [OH-].[Cu+2].P(O)(O)(O)=O.[OH-] Chemical compound [OH-].[Cu+2].P(O)(O)(O)=O.[OH-] OHMUBWQNHUTKMH-UHFFFAOYSA-L 0.000 claims description 2
- 229940073609 bismuth oxychloride Drugs 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- BWOROQSFKKODDR-UHFFFAOYSA-N oxobismuth;hydrochloride Chemical compound Cl.[Bi]=O BWOROQSFKKODDR-UHFFFAOYSA-N 0.000 claims description 2
- 229920002492 poly(sulfone) Polymers 0.000 claims description 2
- 229920001230 polyarylate Polymers 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims description 2
- 229910052623 talc Inorganic materials 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims 1
- 229910001960 metal nitrate Inorganic materials 0.000 claims 1
- 229910044991 metal oxide Inorganic materials 0.000 claims 1
- 150000004706 metal oxides Chemical class 0.000 claims 1
- 229910052976 metal sulfide Inorganic materials 0.000 claims 1
- 229920006380 polyphenylene oxide Polymers 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000002372 labelling Methods 0.000 description 9
- 238000010330 laser marking Methods 0.000 description 9
- 239000010949 copper Substances 0.000 description 8
- 238000001746 injection moulding Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000000654 additive Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000010445 mica Substances 0.000 description 4
- 229910052618 mica group Inorganic materials 0.000 description 4
- 229910010413 TiO 2 Inorganic materials 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 229920002959 polymer blend Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229920002292 Nylon 6 Polymers 0.000 description 2
- 229920001283 Polyalkylene terephthalate Polymers 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 229920003825 Ultramid® B3K Polymers 0.000 description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 150000003568 thioethers Chemical class 0.000 description 2
- UICXTANXZJJIBC-UHFFFAOYSA-N 1-(1-hydroperoxycyclohexyl)peroxycyclohexan-1-ol Chemical compound C1CCCCC1(O)OOC1(OO)CCCCC1 UICXTANXZJJIBC-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 241000283690 Bos taurus Species 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229920004943 Delrin® Polymers 0.000 description 1
- 241000530268 Lycaena heteronea Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 description 1
- 229920001893 acrylonitrile styrene Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 229910000410 antimony oxide Inorganic materials 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 229910052626 biotite Inorganic materials 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 1
- 229910052628 phlogopite Inorganic materials 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229920001639 plastic brand Polymers 0.000 description 1
- 229920006260 polyaryletherketone Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 229920013636 polyphenyl ether polymer Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000003678 scratch resistant effect Effects 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/36—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using a polymeric layer, which may be particulate and which is deformed or structurally changed with modification of its' properties, e.g. of its' optical hydrophobic-hydrophilic, solubility or permeability properties
- B41M5/366—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using a polymeric layer, which may be particulate and which is deformed or structurally changed with modification of its' properties, e.g. of its' optical hydrophobic-hydrophilic, solubility or permeability properties using materials comprising a polymeric matrix containing a polymeric particulate material, e.g. hydrophobic heat coalescing particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/36—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using a polymeric layer, which may be particulate and which is deformed or structurally changed with modification of its' properties, e.g. of its' optical hydrophobic-hydrophilic, solubility or permeability properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/267—Marking of plastic artifacts, e.g. with laser
Definitions
- the present invention relates to laser-markable plastics characterized in that a difficult to laser plastic as an absorber material one or more intrinsically laser-markable polymers in Form of micro-milled particles with a particle size of 0.1-100 ⁇ m contains.
- the labeling of production goods is used in almost all branches of industry increasingly important. For example, production data, Expiry dates, barcodes, company logos, serial numbers etc. be applied.
- these markings are mostly with conventional techniques such as printing, embossing, stamping and labeling executed.
- the non-contact, very fast and flexible marking with lasers especially with plastics.
- PET polyethylene
- PP polypropylene
- PA polyamide
- PMMA polymethyl methacrylate
- POM polyoxymethylene
- PUR polyurethane
- PET polyurethane
- a CO 2 laser which emits light in the infrared range at 10.6 ⁇ m, only produces a weak, barely legible marking on polyolefins, even at very high outputs, since the absorption coefficient of the plastics to be processed at these wavelengths is not high enough to match one To induce color change in the polymeric material.
- the plastic must not fully reflect or let the laser light through, as there is no interaction. However, strong absorption must also not occur, since in this case the plastic evaporates and only one engraving remains.
- EP 0 190 997 A describes laser-inscribable molding compositions, i.a. PE or PS, made by the high molecular weight organic Material adds at least one inorganic pigment.
- EP 0 330 869 PBT and PET are mixed with TiO 2 and carbon black.
- the lettering is dark on a light background.
- the use of carbon black and / or graphite as an absorber in the laser marking of polyester is known from EP 0 485 181.
- the fillers known for laser marking either have the disadvantage that they permanently color the plastic to be labeled and consequently laser marking, which is usually dark Writing on a lighter background is then no longer sufficient high contrast, i.e. is readable, or that, such as. B. with kaolin, the marking is very weak and only with high amounts of the aggregate is clearly visible.
- polymers that without the addition of additives dark and very high contrast using a Lasers are markable.
- these include e.g. B. PET, butadiene styrene (ABS), Polystyrene, polyphenyl ether (PPO), liquid crystal polymers (LCP), polyphenylene sulfide, Polyarylates, polyaryl sulfides, polyaryl sulfones, polyaryl ether ketones as well as their blends.
- the object of the present invention was therefore laser-markable plastics to find a laser mark under the influence of laser light enable with high contrast.
- the filler or the successful one Absorbent should have a very bright neutral color or the Have properties of the pre-colored plastic to be marked or not or only marginally influence them.
- the invention therefore relates to laser-markable plastics, characterized in that difficult to leave plastics one or several intrinsically laser-markable polymers in the form of micro-ground particles with a particle size of 0.1 up to 100 ⁇ m included.
- intrinsically markable polymers By adding micro-milled, intrinsically markable polymers as an absorber in concentrations of 0.1 to 10% by weight, preferably 0.1 to 5% by weight, and in particular 0.1 to 2% by weight, based on the plastic system becomes a high contrast when laser marking achieved.
- concentration of the intrinsically markable polymers in the plastic depends on the plastic system used and the laser used.
- Suitable polymers or polymer mixtures are all known laserable plastics such.
- Micro-ground thermoplastics with a very high melting range of> 300 ° C.
- the edge sharpness of the Marking is particularly due to the particle size of the micromilled Polymers determined.
- the polymers preferably have Particle sizes in the range from 0.1 to 50 ⁇ m, in particular from 1 to 20 ⁇ m.
- the marking result is influenced positively if the intrinsic Markable polymer as a further absorber, a light-sensitive pigment, such as B. a filler, a conductive pigment and / or an effect pigment, contains.
- a light-sensitive pigment such as B. a filler, a conductive pigment and / or an effect pigment.
- the Contrast increased depending on the plastic system used.
- the amount of light-sensitive pigment added should be between 0.1 and 90% be.
- Particularly suitable light-sensitive pigments are fillers, such as. B. TiO 2 and SiO 2 , and layered silicates.
- light or white mica can be used as the silicate plate.
- other natural mica such as phlogopite and biotite, synthetic mica, talc and glass flakes can also be used.
- Suitable conductive pigments are e.g. B. the pigments sold by Merck KGaA under the trade name Minatec®.
- CuO ⁇ P 2 O 5 is particularly preferred ⁇ H 2 O or Cu 3 (PO 4) 2 ⁇ Cu (OH) 2 has.
- Further suitable copper phosphates are 6 CuO ⁇ P 2 O 5 ⁇ 3 H 2 O, Cu 3 (PO 4 ) 2 ⁇ 3 Cu (OH) 2 , 5 CuO ⁇ P 2 O 5 ⁇ 3 H 2 O, Cu 3 (PO 4 ) 2 ⁇ 2 Cu (OH) 2 ⁇ H 2 O, 4 CuO ⁇ P 2 O 5 , 4 CuO ⁇ P 2 O 5 ⁇ 3H 2 O, 4 CuO ⁇ P 2 O 5 ⁇ 1.5 H 2 O, 4 CuO ⁇ P 2 O 5 ⁇ 1.2 H 2 O.
- an improvement in laser markability is also achieved if in addition to the intrinsically labeling polymer, one or more of the above light-sensitive pigments added to the plastic as a further component becomes.
- the weight fraction of all absorbers in the plastic should be in Combination with the micro-milled polymers a total of 10% by weight in relation to the plastic system.
- the plastic contains 0-5% by weight of light-sensitive pigments, in particular 0-1% by weight. The mixing ratio of the light sensitive pigments with the micro-milled polymers, none is subject to this Restriction.
- Color pigments can also be used in the hard-to-laser plastic be added that allow color variations of any kind and at the same time ensure that the laser marking is retained.
- the light-sensitive pigments and / or color pigments are added preferably together with the polymers, but in principle is also separate addition possible. It can also be a mixture of different ones light-sensitive pigments can be added to the plastic.
- High-energy radiation is preferably used for the marking, in general in the wavelength range from 150 nm to 10600 nm, in particular in the range from 150 nm to 1100 nm.
- CO 2 lasers 10600 nm
- Nd YAG lasers (1064 nm or 532 nm) or pulsed UV laser (excimer laser) mentioned.
- Nd YAG lasers (1064 nm or 532 nm) and CO 2 lasers (10600 nm) are particularly preferably used.
- the energy densities of the lasers used are generally in the range from 0.3 mJ / cm 2 to 50 J / cm 2 , preferably in the range from 0.3 mJ / cm 2 to 10 J / cm 2 .
- Thermosets polyethylene (PE-HD, PE-LD, PE-LLD), Polypropylene (PP), polyester, polyacetal, polyamide (PA), poly-urethane (PUR), polybutylene terephthalate, polymethyl methacrylate (PMMA), polyvinyl acetal, Polystyrene, butadiene styrene (ABS), acrylonitrile styrene acrylic ester (ASA), and their copolymers and / or mixtures thereof.
- polyolefins, polyurethanes, polyoxymethylenes and polyamides their mechanical properties, the inexpensive processing methods and their poor laser markability for doping suitable with the polymers according to the invention.
- micro-ground polymer is incorporated into the plastic according to the processes known for pigments and fillers. Subsequently the pigmented plastic is then deformed under the influence of heat.
- the intrinsically markable polymer to be ground is too note that the particle structure is retained after incorporation, d. that is, the particles should not be soluble in the melt or melt with them. This is achieved by appropriate coordination of the Melting ranges of the plastic system with that of the micro-ground Polymer.
- the plastic granulate can be incorporated into the micromilled Polymers optionally adhesives, organic polymer compatible Solvents, stabilizers, optical brighteners, color pigments, dyes, Fillers, reinforcing materials, flame retardants, antistatic agents and / or temperature-stable surfactants added under the working conditions become.
- adhesives organic polymer compatible Solvents, stabilizers, optical brighteners, color pigments, dyes, Fillers, reinforcing materials, flame retardants, antistatic agents and / or temperature-stable surfactants added under the working conditions become.
- organic polymer compatible Solvents organic polymer compatible Solvents
- stabilizers stabilizers
- optical brighteners color pigments
- dyes dyes
- Fillers reinforcing materials
- temperature-stable surfactants added under the working conditions become.
- other additives not mentioned here, added to the plastic become.
- the presence of other additives in existing plastic systems can
- the production of the plastic granulate / polymer mixture takes place in the As a rule, the plastic granulate is placed in a suitable mixer, is wetted with any additives and then the micro-ground Polymers are added and mixed in. The so obtained Mixing can then be done directly in an extruder or an injection molding machine are processed. The moldings formed during processing usually show a very homogeneous distribution of the polymers or of the polymer mixture. Lastly, the laser marking takes place, preferably with an Nd: YAG laser instead.
- the labeling with the laser takes place in such a way that the sample body is brought into the beam path of a pulsed laser, preferably an Nd: YAG laser. Labeling with a CO 2 or excimer laser is also possible. However, the desired results can also be achieved with other types of lasers which have a wavelength in a region of high absorption of the intrinsically marking polymer.
- the hue obtained and the depth of color are determined by the laser parameters, such as the irradiation time and irradiation power.
- the power of the laser used depends on the respective application and can be determined easily by a specialist in individual cases.
- the use of the plastic doped according to the invention can be limited to in all areas, where previously customary printing methods for labeling of plastics.
- molded articles from the plastic according to the invention in electrical, electronics and Motor vehicle industry find application.
- the labeling and Labeling of e.g. Housings, cables, key caps, trim strips or functional parts in the heating, ventilation and cooling area or Switches, plugs, levers and handles that result from the invention Plastic can help even in hard-to-reach places done by laser light.
- the plastic system according to the invention due to its low heavy metal content in packaging be used in the food sector or in the toy sector.
- the Markings on the packaging are characterized by the fact that they smudge-proof and scratch-resistant, stable during subsequent sterilization processes, can be applied hygienically during the marking process.
- complete Label images can be permanently on the packaging for a reusable system be applied.
- Another important area of application for the laser inscription are ID cards and plastic brands individual identification of animals, so-called cattle tags or Earmarks. The laser marking of plastic objects or moldings, which consist of the plastic according to the invention is thus possible.
- the components are mixed physically and using an injection molding machine homogenized and shaped into platelets.
- the caption with an Nd: YAG laser at 532 and 1064 nm wavelengths shows about a high-contrast black marking with a wide setting range smooth surface.
- the components are mixed and using an injection molding machine homogenized and shaped into platelets.
- the label with a Nd: YAG laser shows a black over a wide setting range high-contrast marking with smooth surface.
- the components are mixed and using an injection molding machine homogenized and shaped into platelets.
- the label with a Nd: YAG laser shows a deep black over a wide setting range high-contrast marking with smooth surface.
- the components are mixed and using an injection molding machine homogenized and shaped into platelets.
- the label with a Nd: YAG laser shows a black over a wide setting range high-contrast marking with smooth surface.
- the components are mixed and using an injection molding machine homogenized and shaped into platelets.
- the label with a Nd: YAG laser shows a black over a wide setting range high-contrast marking with smooth surface.
- the polyphenylene sulfide becomes homogeneous in the liquid polyester casting resin stirred. After adding accelerator (Co-Octoat) and hardener (Cyclohexanone peroxide) the mixture is poured into a mold. To the hardening gives a molded part, which by means of Nd: YAG laser is black and can be marked with high contrast.
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Description
| 99 Teile | Polypropylen (Stamylan PPH 10 der Fa. DSM) |
| 1 Teil | Polyphenylensulfid vermahlen auf Teilchengröße < 25 µm |
| 99,5 Teile | Polypropylen (Stamylan PPH 10) |
| 0,5 Teil | Polyphenylensulfon vermahlen auf Teilchengröße < 10 µm |
| 99 Teile | Polyamid 6 (Ultramid B3K der Fa. BASF) |
| 1 Teil | Polyimidsulfon vermahlen auf Teilchengröße < 15 µm |
| 99,6 Teile | Polyamid 6 (Ultramid B3K) |
| 0,4 Teile | Polyphenylensulfid vermahlen auf Teilchengröße < 10 µm |
| 99 Teile | Polyoxymethylen (Delrin der Fa. Du Pont) |
| 1 Teil | Polyphenylensulfid vermahlen auf Teilchengröße < 5 µm |
| 99 Teile | ungesättigtes Polyesterharz (Palatal der Fa. BASF) |
| 1 Teil | Polyphenylensulfid vermahlen auf Teilchengröße < 10 µm |
Claims (12)
- Lasermarkierbare Kunststoffe, dadurch gekennzeichnet, daß ein schwer lasermarkierbarer Kunststoff als Absorbermaterial ein intrinsisch laser-markierbares Polymer in Form von mikrovermahlenen Partikeln mit einer Teilchengröße von 0,1 - 100 µm enthält.
- Lasermarkierbare Kunststoffe nach Anspruch 1, dadurch gekennzeichnet, daß das Absorbermaterial ein hochtemperaturfester Kunststoff ist.
- Lasermarkierbare Kunststoffe nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Absorbermaterial Polyphenylensulfid, Polysulfon, Polyarylat, Polyimid, flüssigkristalline Polymere (LCPs), PET, ABS, Polystyrol, PPO, Polyphenylensulfon, Polyimidsulfon oder deren Gemisch ist.
- Lasermarkierbare Kunststoffe nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Anteil des Absorbermaterials bezogen auf das Kunststoffsystem 0,1 - 10 Gew.% beträgt.
- Lasermarkierbare Kunststoffe nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Teilchenstruktur des intrinsisch markierbaren Polymers im Kunststoff erhalten bleibt.
- Lasermarkierbare Kunststoffe nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Absorbermaterial zusätzlich als weiteren Absorber ein oder mehrere lichtsensitive Pigmente enthält.
- Lasermarkierbare Kunststoffe nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das lichtsensitive Pigment ein Füllstoff, natürlicher oder synthetischer Glimmer, Kupferphosphat, ein Effektpigment, ein leitfähiges Pigment, ein Metallnitrat, Metallsulfat, Metallsulfid, Metalloxid, Talk- und Glasschuppen, Antimon, Bismutoxichlorid, oder basisches Kupfer(II)hydroxidphosphat ist.
- Lasermarkierbare Kunststoffe nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der Anteil der lichtsensitiven Pigmente im Kunststoff 0 bis 5 Gew.%, bezogen auf das Kunststoffsystem, beträgt.
- Lasermarkierbare Kunststoffe nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß der schwer belaserbare Kunststoff Polyethylen, Polypropylen, Polyamid, Polyoxymethylen, Polyester, Polymethylmethacrylat, Polyurethan oder deren Copolymer ist.
- Lasermarkierbare Kunststoffe nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß sie zusätzlich Farbpigmente enthalten.
- Verwendung der lasermarkierbaren Kunststoffe nach Anspruch 1 als Material zur Herstellung von Formkörpern, die mit Hilfe von Lasern markiert werden.
- Formkörper bestehend aus dem lasermarkierbaren Kunststoff nach Anspruch 1.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19726136 | 1997-06-19 | ||
| DE19726136A DE19726136A1 (de) | 1997-06-19 | 1997-06-19 | Lasermarkierbare Kunststoffe |
| PCT/EP1998/003250 WO1998058805A1 (de) | 1997-06-19 | 1998-05-30 | Lasermarkierbare kunststoffe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0991523A1 EP0991523A1 (de) | 2000-04-12 |
| EP0991523B1 true EP0991523B1 (de) | 2002-10-16 |
Family
ID=7833076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98929407A Expired - Lifetime EP0991523B1 (de) | 1997-06-19 | 1998-05-30 | Lasermarkierbare kunststoffe |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP0991523B1 (de) |
| JP (1) | JP2002504947A (de) |
| KR (1) | KR20010013893A (de) |
| CN (1) | CN1169677C (de) |
| AU (1) | AU7917898A (de) |
| BR (1) | BR9810065A (de) |
| CA (1) | CA2294235A1 (de) |
| DE (3) | DE19726136A1 (de) |
| ES (1) | ES2183381T3 (de) |
| TW (1) | TW589339B (de) |
| WO (1) | WO1998058805A1 (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008034021A1 (de) | 2008-07-16 | 2010-01-21 | Merck Patent Gmbh | Verfahren zur Herstellung eines Sicherheits- und/oder Wertprodukts mit Zufallsmuster und korrelierter Identzeichenfolge |
| DE102008034022A1 (de) | 2008-07-16 | 2010-01-21 | Merck Patent Gmbh | Verfahren zur Herstellung eines Sicherheits- und/oder Wertprodukts mit Teilbereichen mit unterschiedlicher Lumineszenzemission |
| WO2011006634A2 (de) | 2009-07-17 | 2011-01-20 | Leonhard Kurz Stiftung & Co. Kg | Verfahren zur herstellung eines mehrschichtkörpers sowie mehrschichtkörper |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10053639B4 (de) * | 2000-10-28 | 2007-04-12 | Chemische Fabrik Budenheim Kg | Verwendung von Eisen-, Cobalt-, Nickel- oder Molybdänsalzen |
| DE10118178C2 (de) * | 2001-04-11 | 2003-05-08 | Draexlmaier Lisa Gmbh | Verbundzierteil und Verfahren zu seiner Herstellung |
| DE10252007A1 (de) * | 2002-11-06 | 2004-05-27 | Merck Patent Gmbh | Lasermarkierbare Pigmente |
| DE10254259A1 (de) * | 2002-11-21 | 2004-06-03 | Abb Patent Gmbh | Verfahren zur Herstellung eines Gehäuses für ein elektrisches Schaltgerät |
| ES2279183T3 (es) * | 2002-12-04 | 2007-08-16 | Dsm Ip Assets B.V. | Aditivo absorbedor de luz laser. |
| NL1022081C2 (nl) * | 2002-12-04 | 2004-06-07 | Dsm Nv | Laserlicht absorberend additief. |
| EP1431050A3 (de) * | 2002-12-19 | 2004-11-03 | MERCK PATENT GmbH | Lasermarkierungsverfahren eines Flüssigkristallfilms |
| CN100500448C (zh) * | 2003-11-10 | 2009-06-17 | 默克专利股份有限公司 | 有色激光标记 |
| DE10356334B4 (de) * | 2003-11-28 | 2016-02-11 | Sachtleben Chemie Gmbh | Verwendung von thermoplastischen, polymeren Werkstoffen mit hoher IR-Absorption |
| DE102004012335A1 (de) * | 2004-03-11 | 2005-09-22 | Basf Ag | Thermoplastische Polyurethane enthaltend Edelmetallsalze |
| DE102004050571A1 (de) * | 2004-10-15 | 2006-04-20 | Ticona Gmbh | Lasermarkierbare Formmassen und daraus erhältliche Produkte und Verfahren zur Lasermarkierung |
| DE102004050481A1 (de) * | 2004-10-15 | 2006-04-27 | Chemische Fabrik Budenheim Kg | Verwendung von Zinnphosphaten |
| DE102004050480A1 (de) * | 2004-10-15 | 2006-04-27 | Chemische Fabrik Budenheim Kg | Pigment für laserbeschriftbare Kunststoffe und dessen Verwendung |
| DE102004050479A1 (de) | 2004-10-15 | 2006-04-27 | Chemische Fabrik Budenheim Kg | Formmasse für die Herstellung schwer entflammbarer Gegenstände, Pigment hierfür und dessen Verwendung |
| DE102004050557B4 (de) * | 2004-10-15 | 2010-08-12 | Ticona Gmbh | Lasermarkierbare Formmassen und daraus erhältliche Produkte und Verfahren zur Lasermarkierung |
| DE102004051246A1 (de) * | 2004-10-20 | 2006-05-04 | Merck Patent Gmbh | Laserschweißbare Polymere |
| WO2006065611A1 (en) * | 2004-12-14 | 2006-06-22 | Polyone Corporation | Use of bismuth oxides for laser markings in thermoplastic polyurethane compounds |
| JP2007306944A (ja) * | 2005-01-21 | 2007-11-29 | Olympus Corp | 内視鏡及び内視鏡用医療器具並びにその表示方法 |
| EP1916278A4 (de) * | 2005-08-18 | 2011-07-20 | Mitsubishi Eng Plastics Corp | Poyamidharzzusammensetzung für lasermarkierung und lasermarkierte polyamidharzformteile |
| EP1790701B2 (de) | 2005-11-25 | 2012-02-01 | Sicpa Holding Sa | IR-absorbierende Intaglio-Druckfarbe |
| DE102006005089B4 (de) * | 2006-02-04 | 2015-04-16 | Preh Gmbh | Bedienelement |
| DE102006038043A1 (de) | 2006-08-14 | 2008-02-21 | Chemische Fabrik Budenheim Kg | Laserbeschriftbares Polymermaterial |
| DE102006045495A1 (de) | 2006-09-27 | 2008-04-03 | Mitsubishi Polyester Film Gmbh | Laser-markierbare Folie |
| DE102006062269A1 (de) | 2006-12-22 | 2008-06-26 | Eckart Gmbh & Co. Kg | Verwendung von sphärischen Metallpartikeln als Lasermarkierungs- oder Laserschweißbarkeitsmittel sowie lasermarkierbarer und/oder laserschweißbarer Kunststoff |
| ES2355764T3 (es) * | 2007-05-09 | 2011-03-30 | Actega Ds Gmbh | Uso de partículas metálicas esféricas como aditivos de marcación con láser para materiales de sellado, de obturación o de recubrimiento o lacas. |
| DE102007050363A1 (de) * | 2007-10-15 | 2009-04-16 | Forschungsinstitut für Pigmente und Lacke e.V. | Verfahren zur Lasermarkierung eines Polymermaterials |
| DE502007001931D1 (de) | 2007-11-30 | 2009-12-17 | Eckart Gmbh | Verwendung einer Mischung mit sphärischen Metallpartikeln und Metallflakes als Lasermarkierungs- oder Laserschweissbarkeitsmittel sowie lasermarkierbarer und/oder laserschweissbarer Kunststoff |
| DE102008005862A1 (de) * | 2008-01-15 | 2009-07-16 | IKT Institut für Kunststofftechnik | Lasermarkierbarer Polymerwerkstoff und Verfahren zu seiner Herstellung |
| DE102009001335A1 (de) * | 2009-03-04 | 2010-09-09 | Chemische Fabrik Budenheim Kg | Strahlung absorbierendes Material |
| CN101927626B (zh) * | 2009-06-18 | 2013-08-07 | 河南天海电器有限公司 | 一种塑料激光打标功能母料 |
| DE102011088564A1 (de) | 2011-12-14 | 2013-06-20 | Robert Bosch Gmbh | Verfahren zur Herstellung eines beschrifteten Batteriezellengehäuses |
| CN103247462B (zh) * | 2012-02-08 | 2015-06-24 | 联想(北京)有限公司 | 键帽及其制造方法、具有该键帽的键盘、笔记本电脑 |
| DE102013100252A1 (de) | 2013-01-11 | 2014-07-17 | Kuraray Europe Gmbh | Verwendung von additivierten Polyvinylacetalen als Lasermarkierungsmittel für schwer lasermarkierbare Kunststoffe |
| DE102014008962A1 (de) | 2014-06-23 | 2016-01-07 | Merck Patent Gmbh | Mikrokugeln |
| DE102016210160A1 (de) | 2016-06-08 | 2017-12-14 | Weilburger Coatings Gmbh | Wässrige Zusammensetzung zur Erzeugung einer lasermarkierbaren Beschichtung und lasermarkierte Beschichtung |
| DE102016219858A1 (de) | 2016-10-12 | 2018-04-12 | Weilburger Coatings Gmbh | Verfahren zur Herstellung einer Beschichtung mit Markierungen auf einer Oberfläche oder einem Teil einer Oberfläche eines Gegenstandes |
| TWI666670B (zh) * | 2018-05-18 | 2019-07-21 | 致伸科技股份有限公司 | 鍵帽結構及其製造方法 |
| CN110628112A (zh) * | 2019-09-28 | 2019-12-31 | 珠海市恒誉科技有限公司 | 一种聚合物局部诱发变黑助剂及制备方法 |
| US11584086B2 (en) * | 2019-12-20 | 2023-02-21 | Xerox Corporation | Particles comprising marking additives for selective laser sintering-based manufacturing systems |
| WO2021152872A1 (ja) * | 2020-01-28 | 2021-08-05 | エア・ウォーター・マッハ株式会社 | 含フッ素エラストマー組成物、およびシール材 |
| JP2025526414A (ja) | 2022-07-26 | 2025-08-13 | メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツング | レーザーマーキング用ポリマー組成物 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8825860D0 (en) * | 1988-11-04 | 1988-12-07 | Bicc Plc | Fluorocarbon polymer compositions & electric cables |
| DE4416129A1 (de) * | 1994-05-06 | 1995-11-09 | Basf Ag | Thermoplastische Formmassen mit guter Beschriftbarkeit |
-
1997
- 1997-06-19 DE DE19726136A patent/DE19726136A1/de not_active Withdrawn
-
1998
- 1998-05-30 DE DE59805984T patent/DE59805984D1/de not_active Expired - Fee Related
- 1998-05-30 BR BR9810065-3A patent/BR9810065A/pt unknown
- 1998-05-30 CN CNB988062437A patent/CN1169677C/zh not_active Expired - Fee Related
- 1998-05-30 DE DE19880779T patent/DE19880779D2/de not_active Expired - Fee Related
- 1998-05-30 JP JP50364999A patent/JP2002504947A/ja active Pending
- 1998-05-30 ES ES98929407T patent/ES2183381T3/es not_active Expired - Lifetime
- 1998-05-30 WO PCT/EP1998/003250 patent/WO1998058805A1/de not_active Ceased
- 1998-05-30 KR KR1019997011915A patent/KR20010013893A/ko not_active Ceased
- 1998-05-30 EP EP98929407A patent/EP0991523B1/de not_active Expired - Lifetime
- 1998-05-30 AU AU79178/98A patent/AU7917898A/en not_active Abandoned
- 1998-05-30 CA CA002294235A patent/CA2294235A1/en not_active Abandoned
- 1998-06-16 TW TW087109560A patent/TW589339B/zh not_active IP Right Cessation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008034021A1 (de) | 2008-07-16 | 2010-01-21 | Merck Patent Gmbh | Verfahren zur Herstellung eines Sicherheits- und/oder Wertprodukts mit Zufallsmuster und korrelierter Identzeichenfolge |
| DE102008034022A1 (de) | 2008-07-16 | 2010-01-21 | Merck Patent Gmbh | Verfahren zur Herstellung eines Sicherheits- und/oder Wertprodukts mit Teilbereichen mit unterschiedlicher Lumineszenzemission |
| WO2011006634A2 (de) | 2009-07-17 | 2011-01-20 | Leonhard Kurz Stiftung & Co. Kg | Verfahren zur herstellung eines mehrschichtkörpers sowie mehrschichtkörper |
| DE102009033762A1 (de) | 2009-07-17 | 2011-01-27 | Leonhard Kurz Stiftung & Co. Kg | Verfahren zur Herstellung eines Mehrschichtkörpers sowie Mehrschichtkörper |
Also Published As
| Publication number | Publication date |
|---|---|
| TW589339B (en) | 2004-06-01 |
| CN1260752A (zh) | 2000-07-19 |
| BR9810065A (pt) | 2000-09-19 |
| KR20010013893A (ko) | 2001-02-26 |
| DE19880779D2 (de) | 2000-09-07 |
| EP0991523A1 (de) | 2000-04-12 |
| DE19726136A1 (de) | 1998-12-24 |
| CA2294235A1 (en) | 1998-12-30 |
| JP2002504947A (ja) | 2002-02-12 |
| CN1169677C (zh) | 2004-10-06 |
| DE59805984D1 (de) | 2002-11-21 |
| AU7917898A (en) | 1999-01-04 |
| ES2183381T3 (es) | 2003-03-16 |
| WO1998058805A1 (de) | 1998-12-30 |
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