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Colouring process for polymer microspheres

A technology of polymer microspheres and processes, applied in the field of dyeing and finishing, can solve problems such as few related reports, and achieve the effects of being conducive to environmental protection, cost saving, and high coloring rate

Inactive Publication Date: 2019-04-23
SUZHOU HENGRUI CALLISYN BIOLOGICAL MEDICINE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Check the literature, there are few related reports

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Microsphere swelling

[0039] a. Weigh 10.0 g of sodium chloride and add it into 1.5 L of purified water, stir until completely dissolved.

[0040] b. Weigh 10.0 g of microspheres and add to 0.3 L of the sodium chloride solution prepared in step a. Stir for 10 min, control the stirring speed at 90 rpm, and the temperature at 0°C.

[0041] (2) Microsphere coloring

[0042] c. Weigh 0.01 g of Pushan Blue MX-R and add it into 15 mL of sodium hydroxide solution with a concentration of 0.05 mol / L, stir for 5 minutes, control the speed at 400 rpm, and the temperature at 0 °C.

[0043] d. Add the dye solution prepared in step c to the microsphere solution in step b for coloring for 100 min, control the stirring speed at 280 rpm, the temperature at 60°C, and the pH value of the solution at 8.0.

[0044] (3) Microsphere washing and drying

[0045] e. After step d, filter the microspheres with a sieve, and rinse with normal saline for 5 minutes.

[0046] f. Transfer the ...

Embodiment 2

[0054] (1) Microsphere swelling

[0055] a. Weigh 2000.0 g of sodium chloride and add it into 40 L of purified water, and stir until completely dissolved.

[0056] b. Weigh 210.0 g of microspheres and add to 40 L of the sodium chloride solution prepared in step a. Stir for 30 min, control the stirring speed at 150 rpm, and the temperature at 20 °C.

[0057] (2) Microsphere coloring

[0058] c. Weigh 20.8 g of Pushan Blue MX-R and add it to 600 mL of 5.0 mol / L sodium hydroxide solution, stir for 30 minutes, control the speed at 300 rpm, and the temperature at 15 °C.

[0059] d. Add the dye solution prepared in step c to the microsphere solution in step b for coloring for 50 minutes, control the stirring speed at 90 rpm, the temperature at 0 °C, and the pH value of the solution at 12.0.

[0060] (3) Microsphere washing and drying

[0061] e. After step d, filter the microspheres with a sieve, and rinse with normal saline for 8 minutes.

[0062] f. Transfer the microspheres ...

Embodiment 3

[0070] (1) Microsphere swelling

[0071] a. Weigh 4000.0g of sodium chloride and add it into 20 L of purified water, stir until completely dissolved.

[0072] b. Weigh 400.0 g of microspheres and add to 20 L of the sodium chloride solution prepared in step a. Stir for 60 min, control the stirring speed at 280 rpm, and the temperature at 40 °C.

[0073] (2) Microsphere coloring

[0074] c. Weigh 40.6 g of Pushsafe Blue MX-R and add it to 300 mL of sodium hydroxide solution with a concentration of 10.0 mol / L, stir for 60 minutes, control the speed at 180 rpm, and the temperature at 40 °C.

[0075] d. Add the dye solution prepared in step c to the microsphere solution in step b for coloring for 5 minutes, control the stirring speed at 170 rpm, the temperature at 30 °C, and the pH value of the solution at 14.0.

[0076] (3) Microsphere washing and drying

[0077] e. After step d, filter the microspheres with a sieve, and rinse with normal saline for 10 min.

[0078] f. Transf...

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Abstract

The invention relates to a colouring process for polymer microspheres, and belongs to the technical field of dyeing and finishing. The colouring process comprises the following steps of: taking a chemical compound of which the molecular formula contains an active group as an reactive dye, taking medical polymer microspheres as a dye material, and swelling the microspheres in an electrolyte solution; simultaneously, dissolving the reactive dye in an alkaline solution; after the reactive dye is dissolved and clarified, adding the dissolved and clarified mixture into a microsphere solution; performing colouring treatment at a certain temperature and pH; and washing and removing unreacted dye from the surfaces of the microspheres by using a detergent so that the dyed polymer microspheres are obtained. The invention creatively provides a dyeing method for the polymer microspheres,a low-temperature reactive dyeing technology is applied to dyeing the medical polymer microspheres for the firsttime; the dyeing conditions are mild; and the polymer microspheres can be dyed at room temperature or at the temperature lower than the room temperature. The colouring process is low in energy consumption, high in colouring rate and good in levelling property; and the dyeing efficiency is greatly improved. Meanwhile, the process is simple, so that the cost is greatly reduced.

Description

technical field [0001] The invention relates to a coloring process of polymer microspheres, which belongs to the technical field of dyeing and finishing. Background technique [0002] With the development of biomedicine, polymer materials have been widely used in the field of medical technology. Such as interventional embolic materials, medical catheters, artificial blood vessels, etc. Among them, there are more and more researches on the application of medical polymer microspheres in the field of interventional embolization therapy. Embolization therapy is a special treatment method in the field of vascular lesion diseases and tumor treatment. It is a controlled injection of embolic agents into the supply vessels of diseased organs through arterial or intravenous catheters, causing them to occlude and interrupt the blood supply. To achieve the purpose of controlling bleeding, treating tumors and vascular lesions, and eliminating patients. [0003] Embolic microspheres ar...

Claims

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Application Information

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IPC IPC(8): D06P3/58D06P1/38D06P1/673
CPCD06P1/38D06P1/67358D06P3/58
Inventor 汪青松王鹤明柳小平黄汉辉
Owner SUZHOU HENGRUI CALLISYN BIOLOGICAL MEDICINE TECH CO LTD
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