CN101313796B - Processing technique for pearl with core - Google Patents
Processing technique for pearl with core Download PDFInfo
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- CN101313796B CN101313796B CN2008100635536A CN200810063553A CN101313796B CN 101313796 B CN101313796 B CN 101313796B CN 2008100635536 A CN2008100635536 A CN 2008100635536A CN 200810063553 A CN200810063553 A CN 200810063553A CN 101313796 B CN101313796 B CN 101313796B
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Abstract
The invention discloses a technology for processing a nuclear pearl. The nuclear pearl in sufficient light is subject to intensifying treatment, cream bleaching treatment and water bleaching treatment, wherein, in the cream bleaching treatment, oxydol in a bleaching solution has a lower content, so the damage to the pearl surface is reduced; the water bleaching treatment is performed based on the cream bleaching treatment, and a catalyst is simultaneously used to accelerate the reaction speed and reduce the reaction time, so the pearl can be bleached completely, and the damage to the pearl during the bleaching process can be minimized. The treatment process is reasonable and effective.
Description
Technical field
The present invention relates to a kind of processing technique for pearl, be meant a kind of nucleated pearl processing technology specifically.
Background technology
Fresh water pearl is divided into no nucleus pearl and nucleated pearl, fresh water genuine pearl with pearl generally is that the ball that clam shell material or other materials processing forms of taking from of diameter 4-5mm is planted by force on nacreous connective tissue, (generally experience more than 1 year through the long-term parcel of nacre, the about 1-2mm of pearl parcel bed thickness), it is exactly alike to form its appearance and natural peral.Its epidermis exquisiteness of nucleated pearl, existing conventional chemical method is processed, and all can not avoid the destruction to the pearl epidermis, this destruction also influences not quite no nucleus pearl, but with respect to the nucleated pearl that has only 1-2mm pearl matter layer, injury is bigger, and destroys perlitic texture easily.
Existing processing technique for pearl mainly comprises flow processs such as the processing that adds lustre to, bleaching processing, polishing.Add lustre to processing, bleaching is treated to the chemical process flow process of pearl, is finished to the Physical Processing flow process of pearl.The final step as the chemical process flow process is handled in bleaching, and the bleaching liquid concentration that pearl is soaked in bleaching is handled is higher, and the time is long partially, just can reach the bleaching effect of high-quality, for the full bleaching before a kind of pearl Physical Processing flow process is handled.Full bleaching handles because the high concentration of its processing, long-time, inevitably bigger destruction perlitic texture.
Summary of the invention
The invention provides a kind of Wicresoft and hinder, process fully in the short time nucleated pearl processing technology of reaction at nucleated pearl.
A kind of nucleated pearl processing technology comprises: successively to nucleated pearl processings that add lustre to, not exclusively bleaching is handled and water is bleached processing under abundant illumination;
Described incomplete bleaching processing procedure is: nucleated pearl is soaked in bleaching liquid, and the every mistake of bleaching liquid was changed once in 96 hours, changed altogether 3 times; Described bleaching liquid is that absolute methanol, concentration are the mixed liquor of 30% hydrogen peroxide, corrosion inhibitor, polyethylene glycol, and its weight proportion is 200: 1: 2: 2; Not exclusively bleaching is treated to that a kind of bleaching concentration is low, the time is short less to the nucleated pearl infringement, the transition flow process before pearl Physical Processing flow process.
Described corrosion inhibitor is sodium pyrophosphate, urea, glycerine three's a mixed aqueous solution, and wherein, the weight percentage of sodium pyrophosphate is 0.78%, and the weight percentage of urea is 0.12%, and the weight percentage of glycerine is 10%; Because hydrogen peroxide belongs to faintly acid, the pearl epidermis there is corrosiveness, use the corrosion inhibitor and the polyethylene glycol of this proportioning and concentration, reduce the surface tension of hydrogen peroxide, disperse the bubble of assembling with discoloration on the pearl surface, moistening fast, emulsification, dispersion, infiltration, the oxidation that can protect the pearl epidermis to reduce hydrogen peroxide destroys;
Described water bleaching processing procedure is: place 65 ℃～80 ℃ water bleaching liquid to soak 96 hours nucleated pearl; Described water bleaching liquid is that deionized water, concentration are the mixed solution of 30% hydrogen peroxide, surfactant, catalyst, its weight proportion is 1000: 3: 10: 15, this its solvent of water bleaching liquid is a large amount of water, dilute the concentration of hydrogen peroxide greatly, reduced time to rupture by catalyst accelerated reaction speed simultaneously.The water bleaching is treated to the final step before pearl Physical Processing flow process, and it is treated to the extent of damage that high temperature, low concentration, fast reaction determine that directly the pearl top layer is final.
Described surfactant comprises one or more in polyethylene glycol, polyethylene glycol p-methyl benzenesulfonic acid ester, lauryl sodium sulfate, the Tween 80, repairs the epidermis of pearl breakage.
Described catalyst is catalyst A and/or catalyst B, and catalyst A is that NaOH, sodium metasilicate, concentration are the mixed liquor of 1% ammoniacal liquor, and its weight proportion is 3: 1: 200; Catalyst B is the aqueous solution of potash, and the weight percentage of potash is 2.5%.
Described adding lustre to is treated to conventional process in the processing technique for pearl, nucleated pearl alternately can be soaked also available other available brightening process in ammoniacal liquor and absolute methanol.
Technology of the present invention is added lustre to nucleated pearl after the processing, carrying out incomplete bleaching handles, hydrogen peroxide content is lower in the used bleaching liquid, reduces the damage to the pearl epidermis, but also can cause the not thorough of bleaching simultaneously, therefore not exclusively carry out water bleaching processing again after the bleaching, applications catalyst accelerated reaction speed reduces the reaction time simultaneously, can bleach completely pearl, minimum with in the bleaching process infringement of pearl being dropped to again, treatment process rationally, effectively.
The specific embodiment
Embodiment 1
Nucleated pearl is fully being carried out under the illumination successively:
(1) processing that adds lustre to:
A puts into concentration 0.3 ‰ ammonia spirits that are dissolved with the 5g magnesium hydroxide with pearl and soaked 40～50 hours, and operating temperature is 14 ℃;
B takes out pearl, washes the back dehydration, air dry then;
C puts into absolute methanol solution with pearl and soaked 72 hours, and absolute methanol concentration is 99.99%, and operating temperature is 40 ℃;
D takes out pearl, washes the back dehydration, air dry then;
It is that 0.2 ‰ ammonia spirit soaked 48 hours that e puts into concentration with pearl, and operating temperature is 40 ℃;
F takes out pearl, washes the back dehydration, air dry then;
G puts into absolute methanol with pearl and soaked 48 hours, and operating temperature is 40 ℃;
H takes out pearl, washes the back dehydration, air dry then;
It is that 0.1 ‰ ammonia spirit soaked 24 hours that i puts into concentration with pearl, and operating temperature is 40 ℃;
J takes out pearl, washes the back dehydration, air dry then;
K puts into absolute methanol with pearl and soaked 48 hours, and operating temperature is 40 ℃;
L takes out pearl, washes the back dehydration, and the processing that adds lustre to is finished in air dry then.
(2) not exclusively bleaching is handled;
Pearl is placed in the bleaching liquid soaks, the every mistake of bleaching liquid was changed once in 96 hours, changed 3 times and can finish the bleaching processing.Bleaching liquid is the mixed liquor of absolute methanol, hydrogen peroxide (concentration is 30%), corrosion inhibitor, polyethylene glycol, and its weight proportion is 200: 1: 2: 2.Corrosion inhibitor is the aqueous solution of sodium pyrophosphate, urea, glycerine, and the weight percentage of sodium pyrophosphate is 0.78%, and the weight percentage of urea is 0.12%, and the weight percentage of glycerine is 10%.
(3) the water bleaching is handled;
Place 65 ℃～80 ℃ water bleaching liquid to soak pearl got final product, and finished the processing of nucleated pearl in 96 hours.The water bleaching liquid is the mixed solution of deionized water, hydrogen peroxide (concentration is 30%), surfactant, catalyst, and its weight proportion is 1000: 3: 10: 15; Surfactant comprises polyethylene glycol, polyethylene glycol p-methyl benzenesulfonic acid ester, lauryl sodium sulfate, Tween 80, and its weight proportion is 1: 1.5: 1: 2; Catalyst is the mixed liquor of catalyst A and catalyst B, and its weight proportion is 1: 1.5, and catalyst A is the mixed liquor of NaOH, sodium metasilicate, ammoniacal liquor (concentration is 1%), and its weight proportion is 3: 1: 200; Catalyst B is the aqueous solution of potash, and the weight percentage of potash is 2.5%.
Embodiment 2:
Nucleated pearl is fully being carried out under the illumination successively:
(1) processing that adds lustre to:
A puts into concentration 0.3 ‰ ammonia spirits that are dissolved with the 8g magnesium hydroxide with pearl and soaked 40～50 hours, and operating temperature is 15 ℃;
B takes out pearl, washes the back dehydration, air dry then;
C puts into absolute methanol solution with pearl and soaked 72 hours, and absolute methanol concentration is 99.99%, and operating temperature is 45 ℃;
D takes out pearl, washes the back dehydration, air dry then;
It is that 0.2 ‰ ammonia spirit soaked 48 hours that e puts into concentration with pearl, and operating temperature is 45 ℃;
F takes out pearl, washes the back dehydration, air dry then;
G puts into absolute methanol with pearl and soaked 48 hours, and operating temperature is 45 ℃;
H takes out pearl, washes the back dehydration, air dry then;
It is that 0.1 ‰ ammonia spirit soaked 24 hours that i puts into concentration with pearl, and operating temperature is 45 ℃;
J takes out pearl, washes the back dehydration, air dry then;
K puts into absolute methanol with pearl and soaked 48 hours, and operating temperature is 45 ℃;
L takes out pearl, washes the back dehydration, and the processing that adds lustre to is finished in air dry then.
(2) not exclusively bleaching is handled:
Pearl is placed in the bleaching liquid soaks, the every mistake of bleaching liquid was changed once in 96 hours, changed 3 times and can finish the bleaching processing; Bleaching liquid is the mixed liquor of absolute methanol, hydrogen peroxide (concentration is 30%), corrosion inhibitor, polyethylene glycol, and its weight proportion is 200: 1: 2: 2.Corrosion inhibitor is the aqueous solution of sodium pyrophosphate, urea, glycerine, and the weight percentage of sodium pyrophosphate is 0.78%, and the weight percentage of urea is 0.12%, and the weight percentage of glycerine is 10%.
(3) the water bleaching is handled:
Place 65 ℃～80 ℃ water bleaching liquid to soak pearl got final product, and finished the processing of nucleated pearl in 90 hours; The water bleaching liquid is the mixed solution of deionized water, hydrogen peroxide (concentration is 30%), surfactant, catalyst, and its weight proportion is 1000: 3: 10: 15; Surfactant is a polyethylene glycol p-methyl benzenesulfonic acid ester; Catalyst is a catalyst A: the mixed liquor of NaOH, sodium metasilicate, ammoniacal liquor (concentration is 1%), its weight proportion is 3: 1: 200.
Embodiment 3:
Nucleated pearl is fully being carried out under the illumination successively:
(1) processing that adds lustre to:
A puts into concentration 0.3 ‰ ammonia spirits that are dissolved with the 10g magnesium hydroxide with pearl and soaked 40～50 hours, and operating temperature is 15 ℃;
B takes out pearl, washes the back dehydration, air dry then;
C puts into absolute methanol solution with pearl and soaked 72 hours, and absolute methanol concentration is 99.99%, and operating temperature is 50 ℃;
D takes out pearl, washes the back dehydration, air dry then;
It is that 0.2 ‰ ammonia spirit soaked 48 hours that e puts into concentration with pearl, and operating temperature is 50 ℃;
F takes out pearl, washes the back dehydration, air dry then;
G puts into absolute methanol with pearl and soaked 48 hours, and operating temperature is 50 ℃;
H takes out pearl, washes the back dehydration, air dry then;
It is that 0.1 ‰ ammonia spirit soaked 24 hours that i puts into concentration with pearl, and operating temperature is 50 ℃;
J takes out pearl, washes the back dehydration, air dry then;
K puts into absolute methanol with pearl and soaked 48 hours, and operating temperature is 50 ℃;
L takes out pearl, washes the back dehydration, and the processing that adds lustre to is finished in air dry then.
(2) not exclusively bleaching is handled:
Pearl is placed in the bleaching liquid soaks, the every mistake of bleaching liquid was changed once in 96 hours, changed 3 times and can finish the bleaching processing; Bleaching liquid is the mixed liquor of absolute methanol, hydrogen peroxide (concentration is 30%), corrosion inhibitor, polyethylene glycol, and its weight proportion is 200: 1: 2: 2.Corrosion inhibitor is the aqueous solution of sodium pyrophosphate, urea, glycerine, and the weight percentage of sodium pyrophosphate is 0.78%, and the weight percentage of urea is 0.12%, and the weight percentage of glycerine is 10%.
(3) the water bleaching is handled:
Place 65 ℃～80 ℃ water bleaching liquid to soak pearl got final product, and finished the processing of nucleated pearl in 90 hours; The water bleaching liquid is the mixed solution of deionized water, hydrogen peroxide (concentration is 30%), surfactant, catalyst, and its weight proportion is 1000: 3: 10: 15; Surfactant comprises polyethylene glycol, lauryl sodium sulfate, Tween 80, and its weight proportion is 1: 1.5: 1; Catalyst is a catalyst B: the potash weight percentage is 2.5% the aqueous solution.
Claims (3)
1. nucleated pearl processing technology comprises: successively to nucleated pearl processings that add lustre to, not exclusively bleaching is handled and water is bleached processing under abundant illumination;
Described incomplete bleaching processing procedure is: nucleated pearl is soaked in bleaching liquid, and the every mistake of bleaching liquid was changed once in 96 hours, changed altogether 3 times; Described bleaching liquid is that absolute methanol, concentration are the mixed liquor of 30% hydrogen peroxide, corrosion inhibitor, polyethylene glycol, and its weight proportion is 200: 1: 2: 2;
Described corrosion inhibitor is sodium pyrophosphate, urea, glycerine three's a mixed aqueous solution, and wherein, the weight percentage of sodium pyrophosphate is 0.78%, and the weight percentage of urea is 0.12%, and the weight percentage of glycerine is 10%;
Described water bleaching processing procedure is: place 65 ℃～80 ℃ water bleaching liquid to soak 96 hours nucleated pearl; Described water bleaching liquid is that deionized water, concentration are the mixed solution of 30% hydrogen peroxide, surfactant, catalyst, and its weight proportion is 1000: 3: 10: 15.
2. nucleated pearl processing technology as claimed in claim 1 is characterized in that: described surfactant is one or more in polyethylene glycol, polyethylene glycol p-methyl benzenesulfonic acid ester, lauryl sodium sulfate, the Tween 80.
3. nucleated pearl processing technology as claimed in claim 1 is characterized in that: described catalyst is catalyst A and/or catalyst B, and catalyst A is that NaOH, sodium metasilicate, concentration are the mixed liquor of 1% ammoniacal liquor, and its weight proportion is 3: 1: 200; Catalyst B is that the weight percentage of potash is 2.5% the aqueous solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100635536A CN101313796B (en) | 2008-06-26 | 2008-06-26 | Processing technique for pearl with core |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100635536A CN101313796B (en) | 2008-06-26 | 2008-06-26 | Processing technique for pearl with core |
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| CN101313796A CN101313796A (en) | 2008-12-03 |
| CN101313796B true CN101313796B (en) | 2011-01-26 |
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| CN2008100635536A Expired - Fee Related CN101313796B (en) | 2008-06-26 | 2008-06-26 | Processing technique for pearl with core |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912187A (en) * | 2010-08-05 | 2010-12-15 | 湛江龙之珍珠有限公司 | Method for bleaching seawater pearl |
| CN108433267B (en) * | 2018-03-28 | 2019-10-01 | 浙江天使之泪珍珠股份有限公司 | A kind of pearl brightening process |
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