CN103481692A - Method for marking anti-fake identification code by laser engraving at film lower-layer of composite film packing material - Google Patents
Method for marking anti-fake identification code by laser engraving at film lower-layer of composite film packing material Download PDFInfo
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- CN103481692A CN103481692A CN201310393883.2A CN201310393883A CN103481692A CN 103481692 A CN103481692 A CN 103481692A CN 201310393883 A CN201310393883 A CN 201310393883A CN 103481692 A CN103481692 A CN 103481692A
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Abstract
The invention relates to a method for marking an anti-fake identification code by laser engraving at the film lower-layer of a composite film packing material. A 532 nm green laser is used for generating a pulse laser beam with the peak power of 10-50 kw, the frequency of 10-50 khz and the pulse width of 10-50 ns, and the pulse laser beam passes through a transparent or semitransparent film of the composite film packing material and acts on the surface of lower-layer material of the transparent or semitransparent film. On one hand, the anti-fake identification code marked by engraving is never worn; on the other hand, the transparent or semitransparent film at the surface layer of the composite film packing material is not damaged; thus the organization layer structure and the original composite film packing material cannot be damaged, and the problems that ink-sprayed marks are easily wiped, the film structure of the composite film packing material can be damaged by the traditional laser marking mode to cause air leakage, and the like are overcome.
Description
Technical field
The invention belongs to products antifake technique, be specifically related to the method that a kind of film at compound film packing material lower floor carries out the body laser inner carving marking anti-counterfeiting identification code.
Background technology
Compound film packing material has multiple complex method: A, paper-plastic composite film packaging material, comprises that the MULTILAYER COMPOSITE such as plastic sheeting, paper, aluminium foil form, as Tetra Pak, Kang Meibao, confused U.S. bag, roof bag, Lilezhen etc.; B, composite plastic film packaging material, be composited by the laminated plastics material; C, aluminized complex film packaging material, formed by plastic foil and internal layer thereof the MULTILAYER COMPOSITE such as aluminize; D, aluminum-plastic composite membrane packaging material, formed by MULTILAYER COMPOSITE such as plastic foil and internal layer aluminium foils thereof;
Compound film packing material is for food liquid milk beverage, solid-state food, medicine, chemical products, small stores etc.Every one deck has its action function, and the product in packing can be stored under refrigeration or normal temperature situation, guarantees that product does not contact with outside air, in germ-free condition.Plastic sheeting commonly used has: polyvinyl chloride (PVC), polypropylene (PP) and polyester (PET) film (PE, OPP) etc., the outermost layer transparent plastic film of compound film packing material is mainly the moisture seal effect, just lose this respect function if destroyed, can cause the defective of integral composite membrane packaging material.
The product of compound film packing material packing identification means commonly used is: use ink-jet/Laser Jet technology in product packaging material outermost surface stamp, the shortcoming of this method is that the character of ink-jet stamp is easily wiped, and the Laser Jet method easily burns out the plastic sheeting on compound film packing material.
Summary of the invention
Purpose of the present invention is exactly for above-mentioned defect, provides a kind of film at compound film packing material lower floor to carry out the body laser inner carving marking anti-counterfeiting identification code and does not destroy compound film packing material, guarantees the method for its sealing function.
Technical scheme of the present invention is:
Film lower floor to compound film packing material is used laser equipment to carry out the method for interior micro-engraving marking anti-counterfeiting identification code, it is to utilize body laser inner carving, computer point cloud software systems air exercise digital content to carry out a cloud and process, computer stamp software systems produce the high impulse peak power of 10～50 kilowatts according to a cloud document control galvanometer and 532nm green (light) laser, 10～50 KHzs are high-frequency, and pulsewidth is 10 ~ 50ns; Pulse laser beam acts on the surface of the subsurface material of transparent film layer through the transparent film layer of compound film packing material, make in anti-counterfeiting identification code to carve mark on the surface of the subsurface material of the transparent film layer of compound film packing material.
Described compound film packing material is a kind of multi-layer compound package material in paper-plastic composite film packaging material, composite plastic film packaging material, aluminized complex film packaging material, aluminum-plastic composite membrane packaging material.
It is that body laser inner carving marking anti-counterfeiting identification code system equipment is located on the packaging production line of the product of packing with compound film packing material and completes.
The laser instrument used is end pump frequency double laser, and laser crystal is YAG or YVO4 crystal.
The frequency of 45 ~ 50ns level pulse laser beam is 10～50 KHzs.
Pulse laser beam acts on the lip-deep color-printed layer of subsurface material of transparent film layer through the transparent film layer of compound film packing material.
Particularly in 50ns level pulse laser beam, the transparent film layer through compound film packing material acts on the lip-deep color-printed layer of subsurface material of transparent film layer in the present invention, makes on the color-printed layer of interior micro-engraving marking anti-counterfeiting identification code under the film lower floor surface layer film of compound film packing material.
Because the green laser pulse peaks power of 532nm is high, plastic sheeting to compound film packing material has good permeability, and surperficial plastic film layers color printing layer under the film of compound film packing material that can the permeation composite membrane packaging material carries out interior micro-engraving marking anti-counterfeiting identification code.
Body laser inner carving marking anti-counterfeiting identification code system comprises pumped at end face of semiconductor 532nm green (light) laser, focal length setting mechanism, industrial tablet PC and laser control system and software etc.
Further, the 532nm green (light) laser is end pump frequency double laser; Laser crystal is generally used YAG or YVO4; The frequency of 50ns level pulse laser beam is 10～50 KHzs.
Described computer point cloud software systems air exercise digital content carries out a cloud processing: input stamp content, the air exercise digital content carries out a cloud to be processed, to meet body laser inner carving marking anti-counterfeiting identification code demand, and the stamp content derive is formed to a some cloud stamp data file, in order to using during micro-engraving marking anti-counterfeiting identification code in the film lower floor of compound film packing material.
The present invention compared with prior art, beneficial effect is: will be in the transparent film layer of anti-counterfeiting identification code permeation composite membrane packaging material carving to the surface of transparent film layer subsurface material layer, the surperficial plastic film layers that particularly acts on compound film packing material is under the film of compound film packing material on the color printing layer; On the one hand, make interior micro-engraving marking anti-counterfeiting identification code never wornout, on the other hand, not damage of plastic foil to the compound film packing material top layer, therefore, can not destroy structure and the sealing property thereof of original compound film packing material, overcome the film layer structure that printing ink coding sign is easily wiped, the conventional laser stamp can injure compound film packing material and caused the problems such as gas leakage.Therefore, in this fast, effect of micro-engraving marking anti-counterfeiting identification code speed clear attractive in appearance, adapt to all kinds of compound film packing materials, can be widely used in the industry fields such as food liquid milk beverage, solid-state food, medicine, chemical products, small stores.
The specific embodiment
Below in conjunction with embodiment, the invention will be further described
Carry out the method for body laser inner carving marking anti-counterfeiting identification code in the film lower floor of compound film packing material, utilize computer point cloud software systems to carry out a cloud to the anti-counterfeit recognition digital content and process a formation point cloud marking data file, (the green laser pulse peaks power of 532nm is high according to a cloud marking data document control galvanometer and 532nm green (light) laser for the laser marking software systems, plastic foil to compound film packing material has good permeability) to produce peak power be 10 ~ 50 kilowatts, frequency is 10～50 KHzs, the pulse laser beam that pulsewidth is 10 ~ 50ns acts on the surface of the subsurface material of transparent film layer through the transparent film layer of compound film packing material, make in anti-counterfeiting identification code to carve mark on the surface of the subsurface material of the transparent film layer of compound film packing material.
Therefore, carving in the transparent film layer of anti-counterfeiting identification code permeation composite membrane packaging material is arrived on figure layer (as printing ink figure layer or the dimensional printed chart layer) surface of transparent film layer lower floor, on the one hand, make interior micro-engraving marking anti-counterfeiting identification code never wornout, on the other hand, not damage of plastic foil to the compound film packing material top layer, therefore, can not destroy structure and the sealing property thereof of original compound film packing material, overcome the film layer structure that printing ink coding sign is easily wiped, the conventional laser stamp can injure compound film packing material and caused the problems such as gas leakage; The content of mark simultaneously can be the identity code of each product, can be combined integrated with the false proof anti-channeling quality of enterprise product logistics traceability system.Therefore, this body laser inner carving marking anti-counterfeiting identification code speed is fast, effect clear attractive in appearance, adapt to all kinds of compound film packing materials, can be widely used in the industry fields such as food liquid milk beverage, solid-state food, medicine, chemical products, small stores.
Body laser inner carving marking system equipment can be located on the packaging production line of product of compound film packing material packing, complete the body laser inner carving mark.For dynamic production line, operation " laser marking software systems ", input point cloud marking data file, needs are detected by photodetector and encoder motion and the speed of compound film packing material simultaneously, then to " laser marking software systems " transmitted signal, compound film packing material is carried out to interior carving mark; And for static production line, operation " laser marking software systems ", input point cloud marking data file, carry out interior carving mark to compound film packing material.
Operation " computer point cloud software systems ": input anti-counterfeiting identification code, anti-counterfeiting identification code is carried out to a cloud processing, to meet the body laser inner carving demand, and anti-counterfeiting identification code derive is formed to a some cloud marking data file, in order to using during the carving mark in compound film packing material.
What in the present embodiment, overlay was commonly used is polyvinyl chloride (PVC), polypropylene (PP) and polyester (PET) (PE, OPP) film etc., compound film packing material can be paper-plastic composite film packaging material, composite plastic film packaging material, aluminize composite plastic film packaging material and aluminum-plastic composite membrane packaging material.
Embodiment 1:
Compound film packing material in the present embodiment comprises the Tetra Pak milk pack material that plastic membranous layer, paper layer and the aluminium foil layer etc. of outermost transparent film layer are made.Utilize computer point cloud software systems to carry out a cloud to the anti-counterfeit recognition digital content and process a formation point cloud marking data file, according to a cloud marking data document control galvanometer and 532nm green (light) laser, (laser instrument of use is end pump frequency double laser to the laser marking software systems, laser crystal is YAG or YVO4 crystal) the generation peak power is 48 ~ 50KW, be preferably 50KW kilowatt, frequency is 24 ~ 27 KHzs, preferred 25 KHzs, the laser equipment parameter that pulsewidth is pulsewidth 10 ~ 12ns pulse of being preferably 10ns on these product packaging production lines, fly in the carving mark, laser beam acts on through the transparent film layer of compound film packing material on the color-printed layer of lower floor's paper layer of transparent film layer, make anti-counterfeiting identification code comprise the date of manufacture, lot number, in the contents such as ID, the carving mark is on the color-printed layer of lower floor's paper layer of the transparent film layer of compound film packing material, identify clear attractive in appearance, do not hinder packaging structure, it is a kind of innovation identification means of safety and environmental protection.
Embodiment 2:
The composite membrane that the low-temperature milk packaging material such as Yoghourt are comprised of plastics cup rim of a cup surface coverage plastic foil and aluminium coated is made by certain technique.Frequency of utilization 45 ~ 50kHz is preferably 50kHz, peak power 18 ~ 22 KW are preferably 20KW, pulsewidth 10 ~ 12ns is preferably the laser equipment of the pulse of 10ns, and (the 532nm green (light) laser of use is end pump frequency double laser, laser crystal is YAG or YVO4 crystal) carving mark in flight on these product packaging production lines, laser beam acts on through the transparent film layer of compound film packing material on the color-printed layer of lower floor's plastic membranous layer of transparent film layer (plastic foil), make anti-counterfeiting identification code comprise the date of manufacture, lot number, in the contents such as ID, the carving mark is on the color-printed layer of lower floor's plastic membranous layer of the transparent film layer of compound film packing material, identify clear attractive in appearance, do not hinder packaging structure, reach false proof anti-channel conflict and the product administrative purposes of tracing to the source.
Embodiment 3:
The Partial Food flavouring, medicine, the packaging material of chemical products etc. are the compound film packing materials be composited by multilayer plastic film and aluminium coated or aluminium foil layer, frequency of utilization 10 ~ 50kHz is preferably 10kHz, peak power 28 ~ 32 KW are preferably 30KW, (the 532nm green (light) laser of use is end pump frequency double laser to the laser equipment of the pulse of pulsewidth 50ns, laser crystal is YAG or YVO4 crystal) carving mark in flight on these product packaging production lines, laser beam acts on the lip-deep color-printed layer of lower floor's plastic membranous layer of transparent film layer (plastic foil) through the transparent film layer of compound film packing material, make anti-counterfeiting identification code comprise the date of manufacture, lot number, in the contents such as ID, the carving mark is on the color-printed layer of lower floor's plastic membranous layer of the transparent film layer of compound film packing material, identify clear attractive in appearance, do not hinder packaging structure, reach false proof anti-channel conflict and the product administrative purposes of tracing to the source.
Embodiment 4:
Partial Food, sanitary napkin, the housing material of diaper etc. is the compound film packing material by more than 2 layers or 2 layers, plastic sheeting is composited, frequency of utilization is that 38 ~ 42 kHz are preferably 40kHz, peak power 10 ~ 12KW is preferably 10KW, pulsewidth is that to be preferably the 532nm green (light) laser that the laser equipment of 35ns uses be end pump frequency double laser to 30 ~ 40ns, laser crystal is YAG or YVO4 crystal) carving mark in flight on these product packaging production lines, laser beam acts on through the transparent film layer of compound film packing material on the color-printed layer of plastic sheeting of lower floor of transparent film layer (plastic foil), make anti-counterfeiting identification code comprise the date of manufacture, lot number, in the contents such as ID, the carving mark is on the color-printed layer of the plastic membranous layer of the transparent film layer of compound film packing material, identify clear attractive in appearance, do not hinder packaging structure, reach false proof anti-channel conflict and the product administrative purposes of tracing to the source.
The above is described embodiments of the invention; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away from the scope situation that aim of the present invention and claim protect, also can make a lot of forms, within these all belong to protection scope of the present invention.
Claims (6)
1. the lower floor of the film at compound film packing material carries out the body laser inner carving marking anti-counterfeiting identification code
Method, it is characterized in that, utilizing the 532nm green (light) laser to produce peak power is that 10 ~ 50 kilowatts, frequency are that the pulse laser beam that 10～50 KHzs, pulsewidth are 10 ~ 50ns acts on the surface of the subsurface material of transparent film layer through the transparent film layer of compound film packing material, makes in anti-counterfeiting identification code the carving mark on the surface of the subsurface material of the transparent film layer of compound film packing material.
2. as claimed in claim 1 the film lower floor of compound film packing material is carried out the method for body laser inner carving marking anti-counterfeiting identification code, it is characterized in that described compound film packing material is a kind of multilayer complex films packaging material in paper-plastic composite film packaging material, composite plastic film packaging material, aluminized complex film packaging material, aluminum-plastic composite membrane packaging material.
3. as claimed in claim 1 the film lower floor of compound film packing material is carried out the method for body laser inner carving marking anti-counterfeiting identification code, it is characterized in that it is that body laser inner carving marking anti-counterfeiting identification code system equipment is located on the packaging production line of the product of packing with compound film packing material and completes.
4. as claimed in claim 1 the film lower floor of compound film packing material is carried out the method for body laser inner carving marking anti-counterfeiting identification code, it is characterized in that the laser instrument used is end pump frequency double laser, laser crystal is YAG or YVO4 crystal.
5. as claimed in claim 1 the film lower floor of compound film packing material is carried out the method for body laser inner carving marking anti-counterfeiting identification code, the frequency that it is characterized in that 45 ~ 50ns level pulse laser beam is 10～50 KHzs.
6. as described in as arbitrary as claim 1 ~ 5, the film lower floor of compound film packing material is carried out the method for body laser inner carving marking anti-counterfeiting identification code, it is characterized in that the transparent film layer that pulse laser beam passes compound film packing material acts on the lip-deep color-printed layer of subsurface material of transparent film layer.
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| CN201310393883.2A CN103481692B (en) | 2013-09-02 | 2013-09-02 | In the method that the film lower floor of compound film packing material carries out body laser inner carving marking anti-counterfeiting identification code |
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| CN201310393883.2A CN103481692B (en) | 2013-09-02 | 2013-09-02 | In the method that the film lower floor of compound film packing material carries out body laser inner carving marking anti-counterfeiting identification code |
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| CN103481692A true CN103481692A (en) | 2014-01-01 |
| CN103481692B CN103481692B (en) | 2016-08-17 |
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| CN104442019A (en) * | 2014-12-08 | 2015-03-25 | 江苏申凯包装高新技术股份有限公司 | Laser printing device for printing laser anti-fake white film |
| CN106276351A (en) * | 2016-09-26 | 2017-01-04 | 蜡笔小新（福建）食品工业有限公司 | The method of laser incising code fruit jelly epiphragma |
| CN107138859A (en) * | 2017-05-24 | 2017-09-08 | 江苏华工激光科技有限公司 | A kind of laser on-line marking method and apparatus of packaging material for surface coating |
| CN104648817B (en) * | 2015-02-04 | 2018-12-07 | 纷美(北京)贸易有限公司 | The method for improving the sealed package group popularity of liquid beverage |
| CN109570767A (en) * | 2018-12-24 | 2019-04-05 | 大族激光科技产业集团股份有限公司 | Mark product and the method for modifying laser identification code |
| CN112846520A (en) * | 2020-12-29 | 2021-05-28 | 江苏华工激光科技有限公司 | Method for endowing surface of film-coated aluminum foil with black codes based on ultrafast laser |
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