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Multi-layer, light markable media and method and apparatus for using same

A label and laser technology, applied in chemical instruments and methods, temperature recording methods, labels, etc., can solve the problems of low cost, increased medium cost, and high cost of narrow-band NIR absorbers, and achieve the effect of simplifying packaging operations

Inactive Publication Date: 2012-03-14
SINCLAIR SYST INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, narrowband NIR absorbers are costly, adding significantly to the cost of the dielectric, and need to be very low cost when used in situations like packaging / product marking

Method used

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  • Multi-layer, light markable media and method and apparatus for using same
  • Multi-layer, light markable media and method and apparatus for using same
  • Multi-layer, light markable media and method and apparatus for using same

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0143] set 1

[0144] Laser: 10 Watt CO 2 With 2D scanning head

[0145] Coating: direct heat (typically found on paper labels for direct heat printers)

[0146] Lamination: White LDPE

[0147] Writing speed: 5000mm / s

[0148] Energy: 55%

[0149] Label Carrier Material: Black Rubber

[0150] Energy is increased in 5% increments until the final mark is fully marked.

[0151] For this setup, the power level is 55%.

[0152] set 2

[0153] Laser: 10 Watt CO2 with 2D scanning head

[0154] Coating: direct heat (typically found on paper labels for direct heat printers)

[0155] Lamination: White LDPE

[0156] Writing speed: 5000mm / s

[0157] Energy: 45%

[0158] Label Carrier Material: Brushed Aluminum

[0159] Again, the energy was increased in 5% increments until the final mark was fully marked. For this setup, the energy level is 45%. This is an 18% reduction in energy or conversely an increase in overall performance.

example 2

[0161] set 1

[0162] Laser: 0.20 watt 980nm single laser beam

[0163] Coating: direct thermal (typically found on paper labels for direct thermal printers), with NIR absorber blended into the direct thermal layer

[0164] Laminate: Transparent LDPE

[0165] Writing speed: 40cm / s

[0166] Energy: Watts

[0167] Label Carrier Material: Black Rubber

[0168] The writing speed was increased in 5% increments until the final mark was fully marked (ie, line width equal to full width at half maximum laser parameter - 80um). The writing speed corresponding to this setting is 40 cm / s.

[0169] set 2

[0170] Laser: 0.20 watt 980nm single laser beam

[0171] Coating: direct heat (typically found on paper labels for direct heat printers)

[0172] Laminate: Transparent LDPE

[0173] Writing speed: 40cm / s

[0174] Energy: Watts

[0175] Label Carrier Material: Brushed Aluminum

[0176] The writing speed was increased in 5% increments until the final mark was fully marked (...

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Abstract

A multi-layer laminate media is provided on which information may be applied in machine or human readable form on a visible front surface by the output of one or more lasers, or other high intensity light source. In a preferred embodiment, the media has three layers including a substrate, a thermochromic layer and a light absorbent layer located intermediate the media substrate and the thermochromic layer. The light absorbent layer is adapted to absorb light from the light source and convert the absorbed light into heat. The heat is immediately conducted into selected portions of the thermochromic layer which is in thermal contact with the light absorbent layer, causing portions of the thermochromic layer to change visual appearance such as color to create the desired mark. The media optimally includes obscuration materials to reduce the visibility of the light absorbent layer to the naked eye. The light absorbent layer is preferably a low cost absorber such as carbon black. An alternate form of the invention is a two layer laminate media including a substrate and a thermochromic layer. The invention is usable in conjunction with labeling produce items. The invention includes a method and apparatus for using media in conjunction with labeling produce items.

Description

[0001] Cross References to Related Applications [0002] This application is a continuation of US Application No. 11 / 069,330, filed March 1,2005. This application claims the benefit of and priority to US Provisional Application Nos. 60 / 712,640, filed August 29, 2005 and 60 / 789,505, filed April 4, 2006. technical field [0003] The present invention relates generally to laser (or other high intensity light) markable media for use, for example, in labeling machines and / or for packaging or other printing applications including point-of-sale film printing, facsimile machines, and laminated card (e.g. ID card) printers s Mark. Background technique [0004] The labeling and packaging markets continue to demand faster, more cost-effective marking systems that can mark non-planar surfaces with long life, and can apply labels or packaging films "on the fly". [0005] As is well known in the art, direct laser array marking of high volume label media has many advantages: no ink or ri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65C9/46B32B7/12B32B38/14
CPCB41M2205/04B65C9/188B65C9/46B41M5/30B65C9/36G09F3/02
Inventor 尼尔·格里芬萨姆·海德艾尔温·斯卡利罗杰·克拉克M·斯科特·豪沃思理查德·卡勒斯迪安威尔逊·R·默里理查德·赫斯特理查德·埃文斯
Owner SINCLAIR SYST INT