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Label capable of being labeled using laser without contact, production method and labeling method

A label and laser absorber technology, applied in the field of labels, their production methods and marking on them, can solve the problems of label durability and ease of use, uneven label surface thickness, and increased difficulty.

Inactive Publication Date: 2009-04-01
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 1. Positioning is difficult, and users need more precise positioning when cutting and printing, which increases the difficulty of use
[0009] 2. The active glue surface only occupies a small part of the label surface, and the thickness of the entire label surface is not uniform, which affects the durability and ease of use of the label
[0010] 3. The intermediate variable information adopts the printing process, which may be tampered with and erased in the future

Method used

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  • Label capable of being labeled using laser without contact, production method and labeling method
  • Label capable of being labeled using laser without contact, production method and labeling method
  • Label capable of being labeled using laser without contact, production method and labeling method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] The product structure from top to bottom is: acrylic pressure-sensitive adhesive with a thickness of about 50 microns, polyvinyl butyral resin with a thickness of about 100 microns, glass microspheres with a diameter of about 50-80 microns, and aluminum with a thickness of 300-800 angstroms. Reflective layer, acrylic pressure-sensitive adhesive with a thickness of about 50 microns, black backing paper 100 microns. The top-down structure includes figure 2 Adhesive layer 1 , second adhesive layer 6 , transparent glass microsphere layer 7 , metal reflective layer 8 , first adhesive layer 9 and backing 3 shown in .

[0078]The copper phthalocyanine pigment is used as an additive and added to a solution of polyvinyl butyral containing other additives and modifiers, the proportion of which is about 1% to 2%. Two adhesive layers 6 ( figure 2 ), the overall appearance is light blue.

[0079] On this structure, an electro-optical Q-switched Nd:YAG laser with a wavelength of...

Embodiment 2

[0081] Using the formula in the patent JP2006256308, the additive is aluminum phthalocyanine pigment with an average particle size of 7.1 microns, which is added to the rubber-reinforced acrylic graft copolymer, acrylic copolymer, styrene copolymer and carbon black at a specific gravity of 0.1%. In the resin material composed of black material, the thickness is 260 microns, and both surfaces are covered with 20 micron PET resin.

[0082] The overall light transmittance of this structure is about 91%. The laser is "PowerLine-E" (1064nm) of Rofin-Bassel, the output is 24.0-30.0A, the frequency is 4.0-13.0kHz, and the scanning speed is 400mm / s. Green marking can be achieved with a 1064nm laser, and white marking can be achieved with a 532nm wavelength laser. If the middle layer of this structure is used to replace the vinyl resin in Example 1 (the thickness can be reduced according to the desired effect), namely figure 2 The protective layer 5 in the embodiment 1 can be used a...

Embodiment 3

[0085] Using the formula in the patent JP2006256308, similar to the above example, using quinacridone (di) ketone as an additive, the addition ratio is 0.2%, the processing technology and the parameters used for marking are the same as those in Example 2, and a 1064nm laser can be used to achieve purple marking. The structure can also be fitted on figure 2 The top or bottom of the middle protective layer 5 constitutes a part of the label, so as to realize the marking effect.

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Abstract

The invention provides a label, comprising a backing layer, an anti-reflector plate layer which is positioned on one surface of the backing layer, and an adhesive layer which is positioned on the other surface of the backing layer and / or on the anti-reflector plate layer; wherein, at least one layer of the backing layer, the anti-reflector plate layer and the adhesive layer contains a laser absorbent. The invention also provides a manufacturing method of the label and a method for marking on the label by laser.

Description

technical field [0001] The present invention relates to a label, a method for making the same and a method for marking the same, in particular to a label that can be marked with laser non-contact such as a face tape label, a method for making the same and a method for marking the same. Background technique [0002] The Face Adhering Validation Sticker (Face Adhering Validation Sticker) glued on the application surface, that is, the observation surface, can be used for the registration and management of vehicles, and can also be used in other fields such as product identification. One of the more representative is the vehicle management label. The vehicle management label is generally used on the inner surface of the front windshield of the vehicle, and is used to prove that the vehicle has passed the inspection, vehicle registration or parking permit, etc. It is generally issued by the relevant state departments or other institutions after inspection or charging and applied ...

Claims

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Application Information

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IPC IPC(8): B32B5/00B32B7/12B32B37/02G02B5/128B41M5/24B41M5/26G09F3/02
Inventor 盖玉健高维威施炜琳贾晓珑
Owner 3M INNOVATIVE PROPERTIES CO
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