A laser ablation marking system for and a method of providing an image to a web of packaging material
A packaging material and marking system technology, applied in the field of marking systems, can solve problems such as ablation and impossibility of mirrors
Pending Publication Date: 2021-02-19
TETRA LAVAL HLDG & FINANCE SA
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- Application Information
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Problems solved by technology
[0013] Second, for high-speed applications, control of the mirror is practically impossible because the time required to physically move the mirror would result in ablation of the bend; in the time required to move the mirror, the package is already moving in the feed direction , whereby the mark will be inclined relative to the lateral direction of the package
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[0046] exist figure 1 In , part of a web 1 of packaging material 3 is shown. The packaging material 3 has several features for facilitating the formation of individual packages. Such features may include, for example, crease lines 5 , pre-laminated holes 7 and one or more laser-ablated marks 10 . Such as figure 1 As shown, during the manufacture of the packaging material 3, the web 1 is sized to accommodate a plurality of segments 12a-c, 13a-c whereby each segment 12a-c, 13a-c is sized to Produce individual packs. The segments are arranged successively in the longitudinal direction (machine direction MD) and in the transverse direction CD. Preferably, the segments 12a-c, 13a-c are offset in the transverse direction CD, such as image 3 It is further shown to reduce vibration during creasing and to allow the rotary creasing tool to operate more smoothly across the entire width of the web of packaging material.
[0047] As noted above, markers 10 may be provided for a vari...
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Abstract
A laser ablation marking system (100) for providing an image (10) to a web (1) of packaging material (3) is provided. The marking system (100) comprises at least one marking device (110) having at least one laser comprising a plurality of individually controlled light outputs arranged in the cross-wise direction of the web (1) of packaging material (3), each light output having a power output of at least 60 W and being configured to emit light to provide laser ablation, and a controller (120) being connected to the marking device (110) and configured to control the light outputs based on the speed of the web (1) of packaging material (3) such that the emitted light will always hit the web (1) of packaging material (3) at the same angle.
Description
technical field [0001] The present invention relates to a marking system for web-based material, such as web-based packaging material. In particular, the present invention relates to a fastening system for providing laser ablation markings on webs of packaging material. Background technique [0002] In the packaging industry, particularly for the production of individual consumer packages for contents such as liquid food products, packages are manufactured by forming and sealing flat packaging materials. The packaging material is usually produced as a continuous web, usually comprising a core layer of matrix material covered on both sides by one or more polymer layers. [0003] The filling machine receives one end of the web of laminated packaging material, and multiple stations provide the required handling of the packaging material in a continuous manner. Such stations may, for example, include feeding, sterilizing, tube forming, filling, sealing and cutting, and final f...
Claims
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IPC IPC(8): B23K26/06B23K26/08B23K26/361B65B61/02G06K1/00G06K7/10G06K15/00B65B3/02
CPCB65B3/025B65B61/025B23K26/0604B23K26/0846B23K26/361B23K26/352B23K2103/40B23K26/083
Inventor 拉尔斯·贝里霍尔茨保罗·斯卡拉贝利拉尔斯·帕尔姆吉安·保罗·梅洛尼
Owner TETRA LAVAL HLDG & FINANCE SA