Artificial pearl nucleus and preparation method and application thereof

A bead core and artificial technology, applied in the field of artificial bead core and its preparation, can solve the problems of being difficult to apply to industrial production, not adding antibacterial ingredients, and avoiding inflammation, etc., achieving low production cost, improving pearl quality, and good tissue compatibility sexual effect

Inactive Publication Date: 2021-03-12
GUANGDONG OCEAN UNIVERSITY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process of the bead core is complicated, the processing cost is high, and it is difficult to be suitable for industrial production.
In addition, the decomposed matter of the mantle cells that cannot survive after transplantation is wrapped in the pearl sac, resulting in flawed pearls, and no antibacterial ingredients are added, so it is difficult to prevent the wounds of the pearl nuclei implanted in the pearl mussel from being infected by bacteria and causing inflammation. occur

Method used

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  • Artificial pearl nucleus and preparation method and application thereof

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Comparison scheme
Effect test

Embodiment 1

[0030] The preparation of embodiment 1 artificial bead nucleus

[0031] (1) Base material preparation: weigh polylactic acid and hydroxyapatite powder according to the mass ratio of polylactic acid and hydroxyapatite powder at 1:7, and weigh nano silver powder according to 0.01% of the total mass of polylactic acid and hydroxyapatite , mixing polylactic acid heated to 190°C to 210°C in a molten state, hydroxyapatite powder and nano-silver powder to make a base material;

[0032] (2) Bead core forming: adopt the method for injection molding to make the base material described in step (1) into bead core, the shape of bead core is spherical, ellipsoidal, drop-shaped for producing free pearls, and hemispherical for producing attached shell pearls , image shape, the produced bead core density is 2.65g / cm 3 ~2.67g / cm 3 , which is consistent with the core density of traditional shell beads.

[0033] (3) Purification of bead nuclei: wash the bead nuclei produced in step (2) and boi...

Embodiment 2

[0034] The preparation of embodiment 2 artificial bead nucleus

[0035] (1) Base material preparation: weigh polylactic acid and hydroxyapatite powder according to the mass ratio of polylactic acid and hydroxyapatite powder at 1:6.5, and weigh nano silver powder according to 0.02% of the total mass of polylactic acid and hydroxyapatite , mixing polylactic acid heated to 210°C in a molten state with hydroxyapatite powder and nano-silver powder to make a base material;

[0036] (2) Bead core forming: adopt the method for injection molding to make the base material described in step (1) into bead core, the shape of bead core is spherical, ellipsoidal, drop-shaped for producing free pearls, and hemispherical for producing attached shell pearls , image shape, the produced bead core density is 2.62g / cm 3 ~2.63g / cm 3 , which is basically the same as the core density of traditional shell beads;

[0037] (3) Purification of bead nuclei: wash the bead nuclei produced in step (2) and ...

Embodiment 3

[0038] The preparation of embodiment 3 artificial bead nucleus

[0039] (1) Base material preparation: weigh polylactic acid and hydroxyapatite powder according to the mass ratio of polylactic acid and hydroxyapatite powder at 1:7.5, and weigh nano silver powder according to 0.01% of the total mass of polylactic acid and hydroxyapatite , mixing polylactic acid heated to 200°C in a molten state with hydroxyapatite powder and nano-silver powder to make a base material;

[0040] (2) Bead core forming: adopt the method for injection molding to make the base material described in step (1) into bead core, the shape of bead core is spherical, ellipsoidal, drop-shaped for producing free pearls, and hemispherical for producing attached shell pearls , image shape, the produced bead core density is 2.69g / cm 3 ~2.70g / cm 3 , which is basically the same as the core density of traditional shell beads;

[0041] (3) Purification of bead nuclei: wash the bead nuclei produced in step (2) and ...

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Abstract

The invention discloses an artificial pearl nucleus as well as a preparation method and application thereof. A high polymer material polylactic acid with histocompatibility is used as a carrier, hydroxyapatite powder and nano silver powder are uniformly mixed according to a certain proportion, then an injection molding method is adopted to produce a pearl nucleus, and the pearl nucleus is boiled and purified for nucleus implantation and pearl cultivation production. The artificial pearl nucleus is simple in preparation process, controllable in shape, pure white in color and proper in density,and has good histocompatibility and antibacterial activity. By cultivating pearls through the artificial pearl nucleus, and the survival rate of pearl cultivating shells and the quality of the pearlscan be remarkably improved. The artificial pearl nucleus can replace the traditional tridacna or clam pearl nucleus to cultivate pearls.

Description

technical field [0001] The invention belongs to the technical field of nucleated pearl cultivation, and in particular relates to an artificial pearl nucleus and its preparation method and application. Background technique [0002] At present, seawater cultured pearls are all nucleated pearls, and the bead core is indispensable for cultured pearls. The composition, structure and properties of the bead nucleus are closely related to the rate of implantation and retention of the nucleus and the quality of the pearl. Therefore, the quality of the bead nucleus directly affects the quality of the pearl. Pearl core materials were once made of lead, silver, clay, ceramics, coral, glass, marble, synthetic resin, and shells. It has been proved through production and application that pearl cores processed from giant clam or clam shells are homologous substances of pearls, so Pearl oyster has a low rejection reaction to it, and has a high rate of nucleus retention. At the same time, it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/57
CPCA01K61/57Y02A40/81
Inventor 刘永童银洪纪德安于非非肖松丰张春芳
Owner GUANGDONG OCEAN UNIVERSITY
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