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Composition for fiber laser capable of laser color marking

A color marking and laser marking technology, applied in laser welding equipment, manufacturing tools, welding equipment, etc., can solve the problems of uncommon photosensitizer LS, high purchase price and high cost

Active Publication Date: 2020-10-20
浙江优可丽新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this application, it is good to have a high light conversion efficiency of the photosensitizer, but the photosensitizer LS mentioned in this application is not common in the market, the purchase price is expensive, and the cost of application in production is too high, so the overall production and sales should be measured , sometimes doing more harm than good

Method used

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  • Composition for fiber laser capable of laser color marking
  • Composition for fiber laser capable of laser color marking
  • Composition for fiber laser capable of laser color marking

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1 Preparation of up-conversion nanoparticles

[0044] YCl 3 , YbCl 3 and ErCl 3 Dissolve in methanol to form concentrations of 1.5mol%, 0.7mol% and 0.4mol%, respectively, add high-temperature solvent oleic acid, evaporate the methanol solvent to dryness, react at 170°C for 40min under nitrogen atmosphere, and cool to room temperature; add the product to the dissolved NaOH (concentration is 0.7mol / L) and NH 4 F (concentration is 2.0mol / L) methanol solution, stir, evaporate methanol solvent to dryness, heat up to 300 ℃ for 2 hours under nitrogen atmosphere, and cool to room temperature; Precipitate with ethanol, centrifuge, wash to obtain the up conversion precursor; The precursor is sprayed by jet microwave combustion synthesis method to form ultrafine powder, and up-conversion nanoparticles are obtained, with a particle size range of 30-110nm. Measure the emission spectrum of the up-conversion nanoparticles under the excitation light of 1064nm, such as f...

Embodiment 2

[0045] Example 2 Preparation of composition 1 (up-converting nanoparticles + photosensitizer).

[0046] 7.5 parts of polyamide resin, 2 parts of up-converting nanoparticles, 0.5 part of hypocretin, 0.3 part of chlorin, 0.5 part of black pigment furnace carbon black and 2 parts of color pigment phthalocyanine red are fully melted and mixed to prepare Resin masterbatch; the remaining 67.5 parts of polyamide resin and the resin masterbatch prepared in the previous step are put into a high mixer and mixed evenly, then add 0.4 part of antioxidant pentaerythritol ester and 0.8 part of lubricant magnesium stearate, and continue to mix until Uniform; put the material mixed in the above steps into a twin-screw extruder, the processing temperature of the extruder is 250°C, the speed of the main machine is 600 rpm, extrude, and add 5 parts of filler glass fiber in the middle of the extruder ; Cooling by a very cold roller to obtain a laser color-markable composition; then use a fiber las...

Embodiment 3

[0059] Preparation of Example 3 Composition 5 (chlorin)

[0060] Compared with Example 2, in the process of preparing the composition, the photosensitizer is selected from: 0.8 parts of chlorin, the dosage of the photosensitizer is the same as that of Example 2, and the other components and preparation method are also the same as that of Example 2. The prepared composition was laser marked with a fiber laser marking machine, the laser energy was 3W, the marking frequency was 50KHz, and the marking speed was 800mm / s.

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PUM

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Abstract

The invention discloses a laser color marked composition for an optical fiber laser. The composition contains upconversion nano particles and a photosensitizer. The upconversion nano particles can emit emitted light of 530-550 nm and 630-662 nm under the irradiation of 1064 nm laser light. At the moment, the emitted light can excite the photosensitizer, so that the photosensitizer has a photothermal effect. The composition is suitable for the optical fiber laser to achieve laser marking under relatively low power laser. The laser mark is good in definition, high in resolution and relatively good in color mark. Moreover, as the laser power is relatively high, and the burned mark is relatively deep, so that the mark is good in stability and durable and does not vanish quickly along with timeand use.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a composition capable of laser color marking, and the composition is suitable for laser marking by a fiber laser. Background technique [0002] Laser marking is a technology that uses the thermal effect of laser to ablate the surface material of the object to leave a permanent mark. Compared with traditional electrochemical, mechanical and other marking methods, it has the advantages of no pollution, high speed, high quality, great flexibility, and non-contact work. In recent years, laser marking has replaced traditional marking methods in many fields and has become a conventional processing method, and even formed a new industrial standard. Laser marking machine is a mechatronic equipment that integrates laser, optics, precision machinery, computer and other technologies. Among them, the laser is the core device of laser marking. At present, the laser marking machi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/00C08K13/02C08K3/04C08K5/103C08K5/098C08K5/524C08K5/3415B23K26/362
CPCB23K26/361B23K26/362C08K3/04C08K5/098C08K5/103C08K5/3415C08K5/524C08K13/02C08K2201/011C08L77/00
Inventor 许韬
Owner 浙江优可丽新材料有限公司