Pearl color reduction processing method
A processing method and pearl technology, applied in jewelry, clothing, applications, etc., can solve the problems of weakened bonding, long processing cycle, and inability to meet customer orders.
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Embodiment 1
[0023] 1. Pretreatment: Weigh 1KG of light pink pearls (R5) that have been brightened, soak them in absolute ethanol at 30°C for 12 hours, take them out and dry them for later use.
[0024] 2. Pre-bleaching treatment: ① Put the pre-treated pearls into the upper mesh bag of the special high-temperature fading equipment, place the mixed solution of diethylene glycol ether and water with a volume ratio of 1:2 in the lower layer, and heat to 110°C. After heating the pearls under steam for 2 hours, cool them, take them out, rinse them with water, and dry them in the air; ② Soak them in absolute ethanol for 12 hours, take them out, dry them, and transfer them to a constant temperature blast drying box, and treat them at a constant temperature at 85°C for 2 hours , cooled to room temperature.
[0025] 3. Bleaching treatment: ① Preparation of bleaching solution: Measure 1000ml of methanol into a 2000ml beaker, then add 10ml of fatty alcohol polyoxyethylene ether, 10ml of polyethylene ...
Embodiment 2
[0029] 1. Pretreatment: Weigh 1KG of light pink pearls (R5) that have been brightened, soak them in acetone at 40°C for 12 hours, take them out and dry them for later use.
[0030] 2. Pre-bleaching treatment: ①Put the pretreated pearls into the upper mesh bag of the special high-temperature fading equipment, place the mixed solution of diethylene glycol methyl ether and water with a volume ratio of 1:1 in the lower layer, and heat to 115°C. After heating the pearls under steam for 2 hours, cool them, take them out, wash them with water, and dry them in the air; ② Soak them in anhydrous ethanol for 12 hours, take them out, dry them, and transfer them to a constant temperature blast drying box, and treat them at a constant temperature at 90°C for 2 hours , cooled to room temperature.
[0031] 3. Bleaching treatment: ①Preparation of bleaching solution: measure 1000ml methanol into a 2000ml beaker, then add 5ml OP-10, 10ml polyethylene glycol 200, 40ml hydrogen peroxide (30%, v / v)...
Embodiment 3
[0035] 1. Pretreatment: Weigh 1KG of light pink pearls (R5) that have been brightened, soak them in acetone at 40°C for 12 hours, take them out and dry them for later use.
[0036]2. Pre-bleaching treatment: ① Put the pre-treated pearls into the upper mesh bag of the special high-temperature fading equipment, and place the mixed solution of diethylene glycol methyl ether, n-octanol and water in the volume ratio of 2:1:3 in the lower layer, and heat to 120°C. After heating the pearls under steam for 2 hours, cool them, take them out, wash them with water, and dry them in the air; ② Soak them in absolute ethanol for 12 hours, take them out, dry them, and transfer them to a constant temperature blast drying oven, and treat them at a constant temperature at 90°C for 3 hours , cooled to room temperature.
[0037] 3. Bleaching treatment: 1. Prepare bleach solution: measure 1000ml deionized water in a 2000ml beaker, then add 5ml glycerol, 5ml sodium lauryl sulfate aqueous solution w...
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