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Dyeing solution for nylon parts and surface color treatment method for nylon parts

A dyeing solution and color treatment technology, applied in the field of dyeing agents, can solve the problems of poor roughness, harsh treatment conditions, and difficult to overcome laminated textures, etc., and achieve the effects of small shrinkage, good light resistance, and easy fading

Active Publication Date: 2021-07-27
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitations of printing principles, the surface of 3D printed nylon parts has more pores and poorer roughness; in addition, limited by the molding process and molding speed, it is difficult for the model printed by the 3D printer to overcome the layering formed in the Z-axis direction Texture, the above all make it difficult to achieve the effect of smooth surface, uniform color and not easy to fade after the product is colored, thus affecting the appearance quality and application of the product
However, the existing coloring treatment methods usually require cumbersome processes, harsh treatment conditions, high time and economic costs, and are not conducive to the promotion and use of 3D printed nylon parts.

Method used

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  • Dyeing solution for nylon parts and surface color treatment method for nylon parts
  • Dyeing solution for nylon parts and surface color treatment method for nylon parts
  • Dyeing solution for nylon parts and surface color treatment method for nylon parts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Pretreatment of 3D printed nylon parts: Add abrasives, water and polishing liquid into the polishing equipment, mix them evenly and put in an appropriate amount of 3D printed parts, set the polishing drum speed between 10-2000r / min, set the polishing time at Between 1min-30min, turn on the polishing equipment to complete the polishing of the 3D printed parts. After polishing, turn off the polishing equipment, drain the water and polishing liquid, take out the 3D printed nylon parts and clean them.

[0028] In parts by weight, take 12 parts of n-butanol and 12 parts of butyl acetate, mix and stir at room temperature for 30 minutes, add 26 parts of succinic acid epoxy acrylate, mix and stir evenly, then add 10 parts of formic acid, 15 parts of acid dye , 0.5 parts of leveling agent, add an appropriate amount of glacial acetic acid to adjust the pH to 4-6, and add 0.1 parts of sodium acetate as a buffer solution, stir evenly; put in pretreated 3D printed nylon parts, and he...

Embodiment 2

[0030] In parts by weight, take 6.25 parts of n-butanol and 6.25 parts of butyl acetate, mix and stir for 30 minutes at room temperature, add 37.5 parts of adipic acid epoxy acrylate, mix and stir evenly, then add 10 parts of formic acid, 15 parts of acid dye , 0.5 parts of leveling agent, add an appropriate amount of glacial acetic acid to adjust the pH to 4-6, and add 0.1 parts of sodium acetate as a buffer solution, stir evenly; put in the pretreated 3D printed parts, and heat up at a rate of 1 °C per minute Keep heating at 96°C for 30 minutes, take out the dyed 3D printed nylon parts, wash them with distilled water three times, and dry them in an oven at 80°C for 12 hours to obtain nylon parts with smooth surface and uniform color.

Embodiment 3

[0032] In parts by weight, take 6.25 parts of n-butanol and 6.25 parts of butyl acetate, mix and stir at room temperature for 120 minutes, add 37.5 parts of polyethylene glycol (400) diacrylate, mix and stir evenly, then add 25 parts of formic acid, 30 1 part of acid dye, 1 part of leveling agent, add an appropriate amount of glacial acetic acid to adjust the pH to 4-6, and add 0.5 part of sodium acetate as a buffer solution, stir evenly; put in the pretreated 3D printed parts, and raise the temperature by 3 °C per minute The speed was raised to 120°C, and the heating was maintained for 120 minutes. The dyed 3D nylon printed parts were taken out, washed 3 times with distilled water, and dried in an oven at 80°C for 12 hours to obtain nylon parts with smooth surface and uniform color.

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Abstract

The invention discloses a dyeing solution for nylon parts and a surface color treatment method for nylon parts. The dyeing solution for nylon parts includes 6.25-12 parts by mass of n-butanol, 6.25-12 parts by mass Parts of butyl acetate, 26 to 37.5 parts by mass of acrylate, 10 to 25 parts by mass of organic carboxylic acid, 15 to 30 parts by mass of dyes, 0.5 to 1 part by mass of auxiliary agents and pH regulators, the pH regulator The agent is used to adjust the pH of the dyeing solution to 4-6. The surface of the nylon product colored by the dyeing solution of the invention is smooth, the color is uniform and the light fastness is good.

Description

technical field [0001] The invention relates to the field of dyeing agents, in particular to a dyeing solution for nylon parts and a surface coloring treatment method for nylon parts. Background technique [0002] 3D printing technology is a technology that uses the principle of layer-by-layer superposition and accumulation forming to manufacture rapid prototyping parts. Because it is additive manufacturing, the design of its structure can be designed arbitrarily without being affected by the processing method. Therefore, many designers have designed products with various 3D structures. On the other hand, with the popularization and promotion of 3D printing technology, the application of 3D printing consumables is becoming more and more extensive. As a kind of 3D printing consumables, nylon has many advantages such as high strength, good chemical stability, and good wear resistance. It is also the preferred material for industrial-grade 3D printing. However, due to the li...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/00D06P1/651D06P1/653D06P3/24
Inventor 白家鸣樊艳芳
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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