Champagne rhinestone and vacuum coating color changing method

Abstract

The invention discloses champagne rhinestones and a vacuum coating color changing method, and belongs to the technical field of rhinestones. The method comprises the steps that S101, a template is transferred, wherein rhinestones are transferred to the template; s102, bias plasma cleaning is conducted, specifically, the template is transferred to a coating chamber, vacuumizing and heating are conducted, and then bias plasma cleaning is conducted; s103, aluminum oxide layer plating: after vacuum cleaning, an aluminum oxide target material is adopted for vacuum coating to form an aluminum oxide layer, and the coating conditions are as follows: the current is 50-70 A, the time is 100-130 S, and the vacuum degree is 5.0-7.0 * 10 <-1 > Pa; in the step S104, oxygen is introduced, ferrochrome is adopted for vacuum coating to form the ferrochrome layer, and the coating conditions are that the current ranges from 50 A to 70 A, the time ranges from 220 S to 270 S, and the vacuum degree ranges from 7.5 * 10 <-1 > Pa to 9.0 * 10 <-1 > Pa; and S105, discharging is conducted, specifically, after cooling is conducted, air is introduced, and then the template is taken out of the coating chamber.

Description

Technical Field

[0001] This invention relates to the field of rhinestone technology, specifically to a champagne-colored rhinestone and a vacuum coating method for color modification. Background Technology

[0002] Rhinestones are a versatile jewelry accessory, primarily used in jewelry, handicrafts, clothing, and footwear. The manufacturing process mainly consists of two steps. The first part is the shaping of the rhinestone (semi-finished product), which is achieved manually, automatically, or semi-automatically using equipment (polishing machines). The second part refers to the subsequent processing of the semi-finished product, which mainly comprises cleaning, molding, inspection, re-cleaning, silver plating, and painting.

[0003] Existing rhinestones generally increase their brightness by silvering the pavilion, usually through chemical silver plating, followed by spraying a protective layer onto the silver surface.

[0004] To achieve the dazzling decorative effect of rhinestones, technicians primarily use the following methods: One method involves infiltrating metal ions into the raw materials for rhinestones, such as infiltrating titanium or iron ions to prepare sapphire, or infiltrating cobalt ions to prepare topaz.

[0005] The second method involves introducing radioactive impurities into the raw materials for diamond drilling, and then producing color through synchrotron radiation or neutron radiation, such as producing blue in topaz.

[0006] Third, an interference film is deposited on the surface of the water drill. The interference film is generally formed by alternating transparent dielectric films with high refractive index and low refractive index.

[0007] For example, patent application number CN201710342722.9 discloses a coating process for a flat-bottomed diamond, in which several coloring layers and light-transmitting layers are coated on the flat-bottomed diamond substrate at intervals. The number of coating layers is 10-16, wherein the first layer is a coloring layer and the second layer is a light-transmitting layer, and an odd number of layers are coated on the flat-bottomed diamond substrate; or the first layer is a light-transmitting layer and the second layer is a coloring layer, and an even number of layers are coated on the flat-bottomed diamond substrate.

[0008] This patent allows flat-bottomed diamonds to display a variety of vibrant colors under light; however, it does not display a specific color, and the process is very complex, requiring more than a dozen layers of coating. Summary of the Invention

[0009] To address the aforementioned problems, this invention provides a champagne-colored rhinestone and a vacuum coating method for color modification. This method can change the color of transparent, colorless rhinestones to champagne, resulting in a vibrant and dazzling color. The coating layer is stable, resistant to discoloration, and does not easily peel off. The process is very simple. The technical solution is as follows: On one hand, an embodiment of the present invention provides a champagne-colored rhinestone, including a pavilion and a crown. The crown is provided with a silver layer and a protective layer from the inside out. The rhinestone substrate is colorless and transparent, and its crown is provided with a vacuum-coated layer, which includes an aluminum oxide layer and a chromium-iron alloy layer from the inside out. Both the chromium-iron alloy layer and the aluminum oxide layer are formed by vacuum ion sputtering, and the chromium-iron alloy layer is champagne-colored.

[0010] The base color of the rhinestone is crystal white.

[0011] The target material of the chromium-iron alloy layer has the following composition: 3-8 wt% Cr and 92-97 wt% Fe.

[0012] The silver layer is formed by chemical plating, and the protective layer is formed by spray painting.

[0013] On the other hand, embodiments of the present invention also provide a vacuum coating color-changing method for the aforementioned champagne-colored rhinestones, the method comprising: S101 Template Transfer: The water drill is transferred to a template having multiple holes that mate with the pavilion of the water drill; the pavilion of the water drill is placed in the holes with its crown exposed, and the pavilion is provided with a silver layer and a protective layer from the inside to the outside.

[0014] S102 Bias Plasma Cleaning: The template is transferred to the coating chamber, vacuumed and heated, and then subjected to bias plasma cleaning.

[0015] S103 Alumina Coating: After vacuum cleaning, an aluminum oxide layer is formed by vacuum deposition using an alumina target. The deposition conditions are: current 50-70A, time 100-130S, vacuum degree 5.0-7.0*10 -1 Pa.

[0016] S104 Chromium-Iron Alloy Layer: A chromium-iron alloy layer is formed by vacuum deposition using a chromium-iron alloy target and oxygen introduction. The deposition conditions are: current 50-70A, time 220-270S, vacuum degree 7.5-9.0*10 -1 Pa; wherein the composition of the chromium-iron alloy target is: 3-8wt%Cr and 92-97wt%Fe.

[0017] S105 discharge: After cooling, air is introduced, and then the template is taken out from the coating chamber.

[0018] In step S101, the template is circular, and the water drill is transferred onto the template by vibration.

[0019] The conditions for bias plasma cleaning are: voltage 350-500V, vacuum degree 3.5-5.0*10. -1Pa, temperature 80-115℃, time 150-200S.

[0020] Furthermore, in steps S103 and S104, the coating temperature is 100-120℃ and the coating voltage is 30-45V.

[0021] In step S104, the oxygen flow rate is 500-3300 ml / s (the volume of the coating chamber is 9-15 cubic meters).

[0022] Preferably, the vacuum coating color-changing method for champagne-colored rhinestones provided in this embodiment of the invention includes: S101 Template Transfer: Transfer the water drill to the template.

[0023] S102 Bias Plasma Cleaning: The template is transferred to the coating chamber, vacuumed and heated, and then subjected to bias plasma cleaning. The conditions for bias plasma cleaning are: voltage 350-500V, vacuum degree 4.5*10. -1 Pa, temperature 105℃, time 170s.

[0024] S103 Alumina Coating: After vacuum cleaning, vacuum coating is performed using an alumina target. The coating conditions are: current 54A, time 125s, vacuum degree 6.4*10 -1 Pa, voltage 40V, temperature 115℃.

[0025] S104 Chromium-Iron Alloy Plating: Vacuum plating is performed using a chromium-iron alloy target with oxygen introduced. The plating conditions are: current 55A, time 250s, and vacuum degree 8*10. -1 Pa, voltage 40V, temperature 115℃; oxygen flow rate 1500ml / s; the composition of the ferrochrome target material is: 4wt%Cr and 96wt%Fe.

[0026] S105 discharge: After cooling, air is introduced, and then the template is taken out from the coating chamber.

[0027] The solution provided by this invention has the following beneficial effects: (1) It forms a champagne color, which is recognized by the market and loved by consumers.

[0028] (2) The process is simple, takes only ten minutes, and only requires two layers of coating.

[0029] (3) The resulting rhinestones are brilliant and shiny.

[0030] (4) High coating stability. (5) The product has good consistency and high yield, reaching the first-class product standard. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the appearance of the champagne-colored rhinestones in this embodiment; Figure 2 This is a schematic diagram of the crown of the champagne-colored rhinestone in this embodiment; Figure 3 A flowchart of the vacuum coating color-changing method for champagne-colored rhinestones. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below.

[0033] Example 1 Example 1 provides a vacuum coating color-changing method for champagne-colored rhinestones, including: S101 Template Transfer: Transfer the rhinestone to the template; the rhinestone's pavilion has a silver layer and a protective layer from the inside out, with a diameter of 5mm, and it is crystal white.

[0034] S102 Bias Plasma Cleaning: The template is transferred to the coating chamber, vacuumed and heated, and then subjected to bias plasma cleaning. The conditions for bias plasma cleaning are: voltage 350-500V, vacuum degree 4.5*10⁻⁶. -1 Pa, temperature 105℃, time 170s.

[0035] S103 Alumina Coating: After vacuum cleaning, an alumina target is used to vacuum coat the crown of the rhinestone. The coating conditions are: current 54A, time 125s, and vacuum degree 6.4*10⁻⁶. -1 Pa, voltage 40V, temperature 115℃.

[0036] S104 Chromium Iron Alloy Plating: Oxygen is introduced and a chromium iron alloy target is used to vacuum coat the crown of the rhinestone. The coating conditions are: current 55A, time 250s, vacuum degree 8*10⁻⁶. -1 Pa, voltage 40V, temperature 115℃; oxygen flow rate 1500ml / s (the volume of the vacuum coating equipment chamber is about 12 cubic meters), the composition of the chromium-iron alloy target material is: 4wt%Cr and 96wt%Fe.

[0037] S105 discharge: After cooling, air is introduced, and then the template is taken out from the coating chamber.

[0038] The resulting rhinestones are champagne-colored with a dazzling brilliance. The yield rate is 99.2%, and the color consistency is greater than 99%, classifying them as first-class products.

[0039] Example 2 Example 2 provides a vacuum coating color-changing method for champagne-colored rhinestones, including: S101 Template Transfer: Transfer the rhinestone to the template; the rhinestone's pavilion has a silver layer and a protective layer from the inside out, with a diameter of 6mm, and it is crystal white.

[0040] S102 Bias Plasma Cleaning: The template is transferred to the coating chamber, vacuumed and heated, and then subjected to bias plasma cleaning. The conditions for bias plasma cleaning are: voltage 350-500V, vacuum degree 5.0*10⁻⁶. -1 Pa, temperature 100℃, time 180s.

[0041] S103 Alumina Coating: After vacuum cleaning, vacuum coating is performed using an alumina target. The coating conditions are: current 60A, time 120s, vacuum degree 6.2*10⁻⁶. -1 Pa, voltage 42V, temperature 120℃.

[0042] S104 chromium-iron alloy plating: Vacuum coating is performed using an chromium-iron alloy target with oxygen introduced. The coating conditions are: current 55A, time 245s, and vacuum degree 8.2*10. -1 Pa, voltage 40V, temperature 120℃; oxygen flow rate 1200ml / s (vacuum coating volume 12 cubic meters); the composition of the chromium-iron alloy target material is: 4.5wt%Cr and 95.5wt%Fe. S105 discharge: After cooling, air is introduced, and then the template is taken out from the coating chamber.

[0043] The resulting rhinestones are champagne-colored with a dazzling brilliance. The yield rate is 99.1%, and the color consistency is greater than 99%, classifying them as first-class products.

[0044] Stability test Experiment 1 A scratching test was conducted on 20 rhinestones (the rhinestones from Example 1, hereinafter the same). The rhinestones were scratched 500 times. The rhinestones were then tested and found that all the rhinestones showed no color change, no color fading, and no obvious scratches.

[0045] Experiment 2 An experiment was conducted with 80 rhinestones placed in a transparent container (open to the atmosphere) at a temperature of 20-35℃ and a relative humidity of 40-60%. Color changes in the rhinestones were observed monthly. The results are shown in Table 1. Table 1

[0046] Experiment 3 Ninety rhinestones were subjected to an alkaline immersion experiment. They were soaked in a 5 wt% sodium hydroxide solution (simulating human sweat) for 4-15 minutes, with 10 rhinestones removed every minute to observe color changes. The results are shown in Table 2. Table 2

[0047] As can be seen from Experiments 1, 2 and 3, the coating layer in this embodiment is stable, not easily scratched, not easily discolored, and not easily peeled off.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A champagne color water drop, comprising a pavilion and a crown, the crown is provided with a silver layer and a protective layer from inside to outside in sequence; characterized in that, The water diamond substrate is colorless and transparent, and the crown thereof is provided with a vacuum plating layer, the vacuum plating layer comprises, from inside to outside, an aluminum oxide layer and a chromium-iron alloy layer, the chromium-iron alloy layer and the aluminum oxide layer are formed by vacuum ion sputtering treatment, and the color of the chromium-iron alloy layer is champagne color.

2. The champagne color simulated diamond of claim 1, wherein, The color of the water diamond substrate is crystal white.

3. The champagne colored simulated diamond of claim 1, wherein, The composition of the target material of the chromium-iron alloy layer is 3-8wt% Cr and 92-97wt% Fe.

4. The champagne colored simulated diamond of claim 1, wherein, The silver layer is formed by chemical plating, and the protective layer is formed by paint spraying.

5. The vacuum plating recoloring method of champagne color simulated water diamonds according to claim 1, wherein, The method comprises: S101 template transfer: transferring the water diamond to a template, the template having a plurality of holes matched with the pavilion part of the water diamond; the pavilion part of the water diamond is placed in the hole, the crown is exposed, and the pavilion part is sequentially provided, from inside to outside, with a silver layer and a protective layer; S102 bias plasma cleaning: transferring the template to a plating chamber, vacuumizing and heating, and then performing bias plasma cleaning; S103: Forming an aluminum oxide layer by vacuum plating: After vacuum cleaning, an aluminum oxide layer is formed by vacuum plating with an aluminum oxide target. The plating conditions are: current 50-70 A, time 100-130 s, vacuum degree 5.0-7.0*10 -1 Pa; S104: forming a chromium-iron alloy layer by vacuum plating with a chromium-iron alloy target material in an oxygen atmosphere, the plating conditions being: current 50-70 A, time 220-270 s, and vacuum degree 7.5-9.0*10 -1 Pa; wherein the chromium-iron alloy target material has a composition of 3-8 wt% Cr and 92-97 wt% Fe. S105 discharging: after cooling, air is introduced, and then the template is taken out of the plating chamber.

6. The method of claim 5, wherein, In step S101, the template is circular, and the water diamond is transferred to the template by vibration.

7. The method of claim 5, wherein, The conditions of the bias plasma cleaning are: voltage 350-500 V, vacuum degree 3.5-5.0*10 -1 Pa, temperature 80-115℃, time 150-200 S.

8. The method of claim 5, wherein, In steps S103 and S104, the plating temperature is 100-120℃, and the plating voltage is 30-45V.

9. The method of claim 5, wherein, In step S104, the amount of oxygen introduced is 500-3300ml / S.

10. The method of claim 5, wherein, The method comprises: S101 template transfer: transferring the water diamond to a template; S102 bias plasma cleaning: the template is transferred to a coating chamber, vacuumed and heated, and then bias plasma cleaning is performed; the bias plasma cleaning conditions are: the voltage is 350-500V, the vacuum degree is 4.5*10 -1 Pa, the temperature is 105℃, and the time is 170S; S103: Alumina plating layer: After vacuum cleaning, alumina target material is used for vacuum plating, and the plating conditions are: current is 54 A, time is 125 S, vacuum degree is 6.4*10 -1 Pa, voltage is 40 V, temperature is 115 ℃; S104 plating chromium-iron alloy layer: vacuum plating with a chromium-iron alloy target with oxygen input, plating conditions: current 55 A, time 250 s, vacuum degree 8*10 -1 Pa, voltage 40 V, temperature 115 °C; oxygen input amount 1500 ml / s, composition of the chromium-iron alloy target: 4 wt% Cr and 96 wt% Fe; S105 discharging: after cooling, air is introduced, and then the template is taken out of the plating chamber.

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