CN101637986A - Color material - Google Patents
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- CN101637986A CN101637986A CN200810126299A CN200810126299A CN101637986A CN 101637986 A CN101637986 A CN 101637986A CN 200810126299 A CN200810126299 A CN 200810126299A CN 200810126299 A CN200810126299 A CN 200810126299A CN 101637986 A CN101637986 A CN 101637986A
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Abstract
The invention provides a color material. The material comprises a base material and a film positioned on the surface of the base material, wherein the color of the surface of the base material is black of which the chromatic values L is between 0 and 5, a is between 0 and 3, and b is between -10 and 2; L expresses a lightness index, a expresses a red-green chromaticity index, and b expresses a yellow-blue chromaticity index; and the film comprises a high-refractive-index optical film layer and a low-refractive-index optical film layer which are distributed alternately; the refractive index ofthe high-refractive-index optical film layer is between 2 and 3, the refractive index of the low-refractive-index optical film layers is between 1.1 and 1.7, the optical thickness of each high-refractive-index optical film layer and each low-refractive-index optical film layer is within a one fourth of the wavelength range of the same homogeneous light respectively, and the total layer number of the high-refractive-index optical film layers and the low-refractive-index optical film layers is at least 3. The color material has deeper colors and strong metallic quality feeling on the premise ofmaintaining good bonding force, abrasion resistance and corrosion resistance.
Description
Technical field
The present invention relates to a kind of color material.
Background technology
At present, plastic housing is widely used in the products such as mobile phone, household electrical appliances, in order to make it possess aesthetic feeling, the incrustation of plastic housing is particularly important, carries out polychromy on the plastic housing surface to reach decoration grade and the aesthetic feeling that metal-like can improve product appearance greatly.Directly plating coating can reach metallization on plastic housing surface, but most metallic diaphragms of method for preparing have electric conductivity, needs frequency emission and the communication apparatus that receives for mobile phone etc., can cause electromagnetic shielding, influences electromagnetic transmission.
In order to make the plastic housing surface reach metal-like and non-conductive, at present main adopt evaporation behind the spraying priming paint for example non-conducting metal film such as indium and tin, again spray in the method for lacquer and finish paint, reach the plastic housing incrustation of preparation different colours by the color of lacquer in the allotment.But color is to form by toner or pigmented tinting in this method, wearability and poor stability, and repeatedly spray, solidify, complex process exists and pollutes.
Given this, a kind of preparation method of seven-colour discoloration glass is disclosed among the CN 1693249A: 1) be that 3-30 nanometer, area are after 2.5-4.5 square metre the clear, colorless glass with uneven surface is cleaned, to be contained in and to send on the work rest in the vacuum chamber of diameter greater than 2 meters coating machine with thickness; 2) in the non-same concentric circles of vacuum chamber, two electron gun evaporation sources are set; 3) 1 part of coating materials titanium dioxide, silica 1 .5 part are positioned over respectively in the crucible in vacuum chamber electron gun evaporation source, fasten the vacuum chamber gate; 4) open coating machine vacuum valve and vavuum pump, the atmospheric pressure in the vacuum chamber is evacuated to (1-5) * 10
-2Pa; 5) open work rest electric rotating machine and two electron gun evaporation sources in the vacuum chamber; 6) make coating materials titanium dioxide 1-2 minute in two electron gun evaporation sources elder generation evaporation crucible, evaporate silica 1-3 minute again, circulation is evaporated 9-21 time repeatedly, utilizes film thickness gauge Monitoring and Controlling thickness to the 200-700 nanometer, promptly gets seven-colour discoloration glass.
Also disclose a kind of preparation technology of colorful display screen glasses lens among the CN 101162270A, may further comprise the steps: (1) replaces the colored rete of stack at blank surface applying silicon oxide and other compound; (2) remove unwanted plated film layer with the method for engraving, also can carve out needed figure or character; (3) with the pattern that designs and color printing at product plated film laminar surface.Described other compound is titanium dioxide or magnesium fluoride or zirconium dioxide or titanium nitride or zirconium nitride or five oxidation Tritanium/Trititaniums.
But the color of the stained glass of above-mentioned patent documentation preparation is more shallow and metal-like is relatively poor.
Summary of the invention
The objective of the invention is defective more shallow for the color that overcomes existing color material and that metal-like is relatively poor, provide a kind of color the dark and stronger color material of metal-like.
The present inventor finds, be with 1/4 of a kind of monochromatic wavelength X by the thickness of controlling every layer of optical film, when getting back to front surface, the intersection beam reflected of every two membranes has identical phase place, thereby generation coherent interference, reach the reflectivity very high to the light of wavelength X, utilize the surface to be the absorption delustring of the base material of black simultaneously to other transmission peak wavelength light, the wavelength that only has that reflexes in the eye is the light of λ, so the wavelength that has only that the plastic housing surface presents is the color of the light of λ, therefore, color material color provided by the invention is darker.
The invention provides a kind of color material, this color material comprises base material and the film that is positioned on this substrate surface, wherein, the color of described substrate surface is that chromatic value is for being positioned at L:0-5, a:0-3, b:-10 to 2 interval black, L represents lightness index, a represents red green product index, b represents champac chromaticity index, this film comprises alternatively distributed high index of refraction optical film and low-refraction optical film, the refractive index of described high index of refraction optical film is 2-3, the refractive index of described low-refraction optical film is 1.1-1.7, the optical thickness of each high index of refraction optical film and low-refraction optical film all the monochromatic wave-length coverage of each comfortable same kind 1/4th in, total number of plies of high index of refraction optical film and low-refraction optical film is at least 3.
The prepared color material of the present invention is keeping adhesion, wearability and corrosion resistance preferably under the prerequisite, and color is darker and have a stronger metal-like.
The specific embodiment
The invention provides a kind of color material, this color material comprises base material and the film that is positioned on this substrate surface, wherein, the color of described substrate surface is that chromatic value is positioned at L:0-5, a:0-3, the black in b:-10 to 2 interval, L represents lightness index, a represents red green product index, b represents champac chromaticity index, this film comprises alternatively distributed high index of refraction optical film and low-refraction optical film, the refractive index of described high index of refraction optical film is 2-3, the refractive index of described low-refraction optical film is 1.1-1.7, the optical thickness of each high index of refraction optical film and low-refraction optical film all the monochromatic wave-length coverage of each comfortable same kind 1/4th in, high index of refraction optical film and low-refraction optical film are at least 3.
Optical thickness described in the present invention is meant that the thickness of each high index of refraction optical film or low-refraction optical film is the product of the refractive index of actual (real) thickness and this optical film.
Described monochromatic wavelength X can be 400 nanometers≤λ≤450 nanometers (purple light), 450 nanometers＜λ≤480 nanometers (blue light), 480 nanometers＜λ≤490 nanometers (green-blue light), 490 nanometers＜λ≤500 nanometers (blue green light), 500 nanometers＜λ≤560 nanometers (green glow), 560 nanometers＜λ≤580 nanometers (green-yellow light), 580 nanometers＜λ≤600 nanometers (gold-tinted), 600 nanometers＜λ≤650 nanometers (orange light) or 650 nanometers＜λ≤750 nanometers (ruddiness).Therefore, the optical thickness of supposing each high index of refraction optical film or low-refraction optical film is the X nanometer, and then X can be in a scope of following scope: 100 nanometers≤X≤112.5 nanometers, 112.5 nanometers＜X≤120 nanometers, 120 nanometers＜X≤122.5 nanometers, 122.5 nanometers＜X≤125 nanometers, 125 nanometers＜X≤140 nanometers, 140 nanometers＜X≤145 nanometers, 145 nanometers＜X≤150 nanometers, 150 nanometers＜X≤162.5 nanometers or 162.5 nanometers＜X≤187.5 nanometers.
The refractive index of the preferred described high index of refraction optical film of the present invention is 2-2.8, and the refractive index of described low-refraction optical film is 1.3-1.7.
In the color material provided by the invention, described high index of refraction optical film can be the layer of one or more formation in titanium dioxide, tantalum pentoxide, niobium pentaoxide, zinc sulphide and the zirconium dioxide, and described low-refraction optical film can be the layer of one or more formation in silicon monoxide, silica and the magnesium fluoride.Preferred described high index of refraction optical film is a titanium dioxide layer, and described low-refraction optical film is a silicon dioxide layer simultaneously.According to this preferred implementation, the color of the color material that obtains is darker, and metal-like is stronger.
In addition, according to the present invention, total number of plies of high index of refraction optical film and low-refraction optical film is at least 3, in general, total number of plies of high index of refraction optical film and low-refraction optical film is many more, then color is dark more, cost is also high more simultaneously, therefore, comprehensively consider from the color and the saving cost aspect of color material, total number of plies of preferred high index of refraction optical film and low-refraction optical film is 3-21, and more preferably total number of plies of high index of refraction optical film and low-refraction optical film is 5-15.
Among the present invention, described base material can for self for the base material of black or surface blackization after promptly the surface non-black base material of black rete is arranged.Wherein, described from being Merlon (PC) plastics, poly methyl methacrylate plastic (PMMA) plastics or acrylonitrile-butadiene-styrene copolymer (ABS) plastics of black as the base material of black, described non-black base material can be metal, alloy, plastics, pottery, the glass of non-black; The thickness of described black rete can be the 50-200 nanometer, preferred 100-150 nanometer.
The method of described surface blackization can be for passing through physical vapor deposition (PVD) or chemical vapor deposition (CVD) black rete or coating black paint or printing ink to form the black rete, preferably by physical vapour deposition (PVD) deposition black rete, described black rete can be TiC individual layer, TiNC individual layer, three layers of Ti/TiC/TiNC or TI/TiN/TiNC/TiC four-layer structure.
The film of color material provided by the invention can adopt dry method or wet method preparation.Dry method comprises PVD method and CVD method, and wet method comprises sol-gal process, liquid phase deposition, hydro-thermal sedimentation etc.The preferred PVD method that adopts in the dry method.Described PVD method comprises thermal evaporation, electron-beam vapor deposition method, radio-frequency magnetron sputter method, intermediate frequency reactive magnetron sputtering method etc., and these methods have been conventionally known to one of skill in the art, do not repeat them here.Wherein preferably adopt the intermediate frequency reactive magnetron sputtering method, the adhesion of the film that this method makes, wearability and corrosion resistance are better.
In addition, preferably before substrate surface forms film, have the base material of greasy dirt to carry out ultrasonic wave for the surface and clean, described method for suppersonic cleaning also has been conventionally known to one of skill in the art, does not repeat them here.
Below by embodiment the present invention is described in more detail.Monitor the optical thickness of each rete of plating with rising the film-thickness monitoring that wins the vacuum technique TSGC-A of Co., Ltd type in the embodiment of the invention.The automatic elliptical polarization calibrator of SGC-2 type that adopts Gangdong, Tianjin development in science and technology Co., Ltd to produce is measured the refractive index of each rete of plating, and the thickness of TiC layer is by measuring utilizing the JSM-5610LV of NEC SEM to amplify 10000 times after the sample section sample preparation.
Embodiment 1
(1) ultrasonic wave cleans
This plastic housing B1 (sincere basic engineering plastic Co., Ltd's Merlon (PC) black injection grade plastic cement shell) as black is immersed in normal temperature successively to be removed La Shui, removes in oil-bound distemper solution and 70 ℃ of deionized waters and carry out the ultrasonic wave cleaning, scavenging period was followed successively by 5 minutes, 5 minutes, 10 minutes, washed between each step.Wherein remove La Shui and remove oil-bound distemper and be wheat dolantin Fine Chemical Co., Ltd special product.
(2) preparation color material
Cleaned black plastic shell B1 is put into Zhaoqing to rise the vacuum drying oven that wins vacuum evaporating coating machine and carries out multilayer electronic beam evaporation plated film, the purity of placing capacity in two crucibles respectively is 99.99% SiO and ZnS coating materials, the evaporation of SiO and ZnS hockets, and alternatively distributed each the SiO layer that adjusting will form and the optical monitoring wavelength of ZnS layer are respectively 460 nanometers, 460 nanometers, 455 nanometers, 465 nanometers, 460 nanometers, 475 nanometers, 470 nanometers and 470 nanometers.The pass fire door is opened mechanical pump and is begun to be evacuated to 10 handkerchiefs, opens ion bombardment power supply and pivoted frame then and rotates, and carries out plasma-activated and cleaning plastic housing surface, and bombarding voltage is 200V, and bombardment time is 3 minutes.
Open essence then and take out, be evacuated to 8.0 * 10
-3Handkerchief.By adjusting bushing position, evaporate ZnS behind the evaporation SiO earlier with electron gun, to form the SiO layer successively on black plastic shell B1 surface, the ZnS layer, the SiO layer, the ZnS layer, the SiO layer, the ZnS layer, SiO layer and ZnS layer, total number of plies of SiO layer and ZnS layer is 8, utilize film-thickness monitoring to make the optical thickness of each SiO layer or ZnS layer be respectively 1/4 of corresponding optical monitoring wavelength, promptly be positioned at the SiO layer on black plastic shell B1 surface successively, the ZnS layer, the SiO layer, the ZnS layer, the SiO layer, the ZnS layer, the optical thickness of SiO layer and ZnS layer is respectively 115 nanometers, 115 nanometers, 113.75 nanometer, 116.25 nanometer, 115 nanometers, 118.75 nanometer, 117.5 nanometer and 117.5 nanometers, wherein the evaporation electronic beam current during evaporation SiO is 120mA, and the evaporation electronic beam current during evaporation ZnS is 240mA.Can obtain blue polychromy plastic housing, be designated as D1.In addition, the refractive index that records each SiO layer and to wavelength be the light of 550 nanometers is 1.55, and each ZnS layer is that the refractive index of the light of 550 nanometers is 2.35 to wavelength.
Embodiment 2
(1) ultrasonic wave cleans
Adopt embodiment 1 described method to clean to carrying out ultrasonic wave from plastic housing B2 (sincere basic engineering plastic Co., Ltd's acrylonitrile-butadiene-styrene copolymer (ABS) black plastic shell) as black.
(2) preparation color material
The multifunctional magnetic control sputtering machine of cleaned black plastic shell B2 being put into northern instrument innovation vacuum technique Co., Ltd carries out the multi-layer RF magnetron sputtering plating.Target employing purity is 99.99% zirconium dioxide target and magnesium fluoride target.
B2 puts into vacuum drying oven with black plastic shell, closes fire door, and alternatively distributed each the zirconium dioxide layer that adjusting will form and the optical monitoring wavelength of magnesium fluoride layer are 720 nanometers.Open vavuum pump and be evacuated to 1.2 * 10
-2Handkerchief, feeding argon gas adjustment vacuum is 1.5 handkerchiefs, and bias voltage is 600 volts, and dutycycle is 50%, carries out plasma bombardment and cleans activation, and the time is 3 minutes.
Feed reacting gas oxygen, the ratio of regulating the flow of argon gas and oxygen is 9: 1, and making vacuum is 5.0 * 10
-1Handkerchief.Open the zirconium dioxide target power supply earlier, the plating zirconium dioxide closes the zirconium dioxide target power supply then and opens the magnesium fluoride target power supply, and the plating magnesium fluoride forms ZrO successively on black plastic shell B2 surface
2Layer and MgF
2The film structure that layer replaces, total number of plies of zirconium dioxide layer and magnesium fluoride layer is 15.Utilize film-thickness monitoring to make the thickness of each zirconium dioxide layer and magnesium fluoride layer be 1/4 of optical monitoring wavelength, promptly be positioned at the alternatively distributed zirconium dioxide layer on black plastic shell B2 surface and the optical thickness of magnesium fluoride layer successively and be 180 nanometers, wherein the power of zirconium dioxide target is 1.3KW, and bias voltage is 200V.The power of magnesium fluoride target is 2.1KW, and bias voltage is 200V.Come out of the stove behind the cooling 3min, can obtain red polychromy plastic housing, be designated as D2.In addition, the refractive index that records each zirconium dioxide layer and to wavelength be the light of 550 nanometers is 2.05, and each magnesium fluoride layer is that the refractive index of the light of 550 nanometers is 1.38 to wavelength.
Embodiment 3
(1) ultrasonic wave cleans
Adopting embodiment 1 described method that clear glass B3 (the Shenzhen special engineered glass industry development of dark glass Co., Ltd) is carried out ultrasonic wave cleans.
(2) preparation color material
1. substrate surface blackization
Earlier cleaned clear glass B3 is put into the shake medium frequency magnetron sputtering ion plating of BYD-800 type of Industrial Co., Ltd. of Hengchang of Shenzhen and carry out blackization, the selected target of blackization is the titanium target of purity 99.99%.
B3 puts into vacuum drying oven with clear glass, closes fire door, opens vavuum pump and is evacuated to 3.0 * 10
-2Handkerchief, feeding argon gas adjustment vacuum is 1.5 handkerchiefs, and bias voltage is 600 volts, and dutycycle is 50%, carries out plasma bombardment and cleans activation, and the time is 8 minutes.
Adjust argon flow amount, making vacuum is 5.0 * 10
-1Handkerchief, feed the reacting gas acetylene gas simultaneously, the initial flow of acetylene gas is 20 standard ml/min, open the titanium target power supply, power is 13KW, and bias voltage is 200V, dutycycle is 40%, adopt incremental manner progressively to increase the acetylene flow, the final flow of acetylene is 100 standard ml/min, and the time is 15 minutes.Close the titanium target, close bias voltage, stop to feed argon gas and acetylene gas, come out of the stove behind the cooling 10min, can obtain the glass that there is black TiC layer on the surface, the thickness that records the TiC layer on glass B3 surface is 100 nanometers.
2. prepare colored rete
The above-mentioned surface that the obtains glass that is black is put into Zhaoqing rises and wins vacuum evaporating coating machine and carry out multilayer electronic beam evaporation plated film.Employing purity is 99.99% Ta
2O
5And SiO
2Coating materials.
The glass that the above-mentioned surface that obtains is a black is put into vacuum drying oven, in two crucibles, place capacity Ta respectively
2O
5And SiO
2Coating materials, alternatively distributed each Ta that adjusting will form
2O
5Layer and SiO
2The optical monitoring wavelength of layer is respectively 585 nanometers, 590 nanometers, 585 nanometers, 585 nanometers and 590 nanometers.The pass fire door is opened mechanical pump and is begun to be evacuated to 10 handkerchiefs, opens ion bombardment power supply and pivoted frame then and rotates, and carries out plasma-activated and the cleaning glass surface, and bombardment time is 3 minutes.
Open essence and take out, be evacuated to 8.0 * 10
-3Handkerchief.By adjusting bushing position, evaporate Ta earlier with electron gun
2O
5Back evaporation SiO
2, form Ta successively with the glass surface that is black on the above-mentioned surface that obtains
2O
5Layer, SiO
2Layer, Ta
2O
5Layer, SiO
2Layer and Ta
2O
5Layer, Ta
2O
5Layer and SiO
2Total number of plies of layer is 5, utilizes film-thickness monitoring to make each Ta
2O
5Layer and SiO
2The optical thickness of layer is respectively 1/4 of corresponding optical monitoring wavelength, the Ta that promptly to be positioned at the above-mentioned surface that obtains successively be the glass surface of black
2O
5Layer, SiO
2Layer, Ta
2O
5Layer, SiO
2Layer and Ta
2O
5The optical thickness of layer is respectively 146.25 nanometers, 147.5 nanometers, 146.25 nanometers, 146.25 nanometers and 147.5 nanometers, wherein evaporation Ta
2O
5The time the evaporation electronic beam current be 240mA, evaporation SiO
2The time the evaporation electronic beam current be 120mA.Can obtain yellow pot-metal glass, be designated as D3.In addition, record each Ta
2O
5Layer is that the refractive index of the light of 550 nanometers is 2.24 to wavelength, each SiO
2Layer is that the refractive index of the light of 550 nanometers is 1.46 to wavelength, then is positioned at the Ta of the glass surface after the above-mentioned surface blackization successively
2O
5Layer, SiO
2Layer, Ta
2O
5Layer, SiO
2Layer and Ta
2O
5The actual (real) thickness of layer is respectively 65 nanometers, 101 nanometers, 65 nanometers, 100 nanometers and 66 nanometers.
Comparative Examples 1
After adopting embodiment 1 described method pair and embodiment 3 identical clear glass BB1 (the Shenzhen special engineered glass industry development of dark glass Co., Ltd) to carry out the ultrasonic wave cleaning, adopt the method described in the CN101162270A to carry out vacuum coating, form the Ti of 40 nanometer thickness on the clear glass surface successively on cleaned clear glass BB1 surface
3O
5The SiO of layer, 40 nanometer thickness
2The Ti of layer, 40 nanometer thickness
3O
5The SiO of layer, 40 nanometer thickness
2The Ti of layer and 40 nanometer thickness
3O
5Layer, the result obtains yellow pot-metal glass, is designated as DD1.
Comparative Examples 2
After adopting embodiment 1 described method pair and embodiment 3 identical clear glass BB2 (the Shenzhen special engineered glass industry development of dark glass Co., Ltd) to carry out the ultrasonic wave cleaning, adopt embodiment 3 described methods that clear glass BB2 carry out surface blackization, and then adopting the glass BB2 surface of method after cleaned blackization described in the CN 101162270A to carry out vacuum coating, the glass surface after blackization forms the Ti of 40 nanometer thickness successively
3O
5The SiO of layer, 40 nanometer thickness
2The Ti of layer, 40 nanometer thickness
3O
5The SiO of layer, 40 nanometer thickness
2The Ti of layer and 40 nanometer thickness
3O
5Layer, the result obtains yellow pot-metal glass, is designated as DD2.
Embodiment 4
(1) ultrasonic wave cleans
Adopt embodiment 1 described method to cleaning from carry out ultrasonic wave as milky plastic housing B4 (sincere basic engineering plastic Co., Ltd's Merlon (PC) milky injection grade plastic cement shell).
(2) preparation color material
1. substrate surface blackization
With embodiment 3 described methods plastic housing B4 carry out blackization, different is, the time of ion plating is 25 minutes, and the thickness of the black TiC layer on the plastic housing surface that obtains is 150 nanometers.
2. prepare colored rete
The plastic housing that the above-mentioned surface that obtains is a black is put into the shake medium frequency magnetron sputtering ion plating of BYD-800 type of Industrial Co., Ltd. of Hengchang of Shenzhen and is carried out multilayer medium frequency magnetron sputtering ion film plating.Selected target is that purity is 99.99% titanium target and silicon target.Alternatively distributed each TiO that adjusting will form
2Layer and SiO
2The optical monitoring wavelength of layer is 420 nanometers.
Follow the operation of above-mentioned substrate surface blackization, close the titanium target power supply, stop to feed acetylene and argon gas, essence feeds reacting gas oxygen and working gas argon gas after taking out 3min, and regulating argon gas and oxygen proportion is 1: 1.5, and making vacuum is 5.0 * 10
-1Handkerchief.Open the titanium target power supply earlier, plating titanium dioxide, pass, back titanium target power supply is opened the silicon target power supply, applying silicon oxide, the plastic housing surface that is black on the above-mentioned surface that obtains forms TiO successively
2Layer and SiO
2The film structure that layer replaces, TiO
2Layer and SiO
2Total number of plies of layer is 7.Utilize film-thickness monitoring to make each TiO
2Layer and SiO
2The optical thickness of layer is 1/4 of optical monitoring wavelength, the alternatively distributed TiO on the plastic housing surface that promptly to be positioned at the above-mentioned surface that obtains successively be black
2Layer and SiO
2The optical thickness of layer is 105 nanometers, and wherein titanium target power supply power is 16kW, and bias voltage is 200V, and dutycycle is 40%, and the silicon target power is 15kW, and bias voltage is 200V, and dutycycle is 40%.Come out of the stove behind the cooling 3min, can obtain the product of purple, be designated as D4.In addition, record each TiO
2Layer is that the refractive index of the light of 550 nanometers is 2.6 to wavelength, each SiO
2Layer is that the refractive index of the light of 550 nanometers is 1.46 to wavelength.
Embodiment 5
Adopt embodiment 4 described methods respectively identical with B4 to be cleaned the color material D5 that the back prepares purple from carry out ultrasonic wave as milky plastic housing B5, different is, when preparing colored rete, replace the titanium target with the niobium target, then the plastic housing surface of black forms Nb successively
2O
5Layer and SiO
2The film structure that layer replaces.In addition, record each Nb
2O
5The refractive index of layer is 2.5, each SiO
2The refractive index of layer is 1.46.
Distinguish chromatic value, adhesion, wearability and the corrosion resistance of the color material D1-D5 and the color material DD1-DD2 that Comparative Examples 1-2 prepares of test implementation example 1-5 preparation according to following method.
Chromatic value is measured: the comprehensive colour measurement instrument of L190531 model that adopts EHSY company to produce, measure colourity Lab value.Wherein, L represents lightness index, and a represents red green product index, and b represents champac chromaticity index.
Adhesion is measured: draw 100 1 millimeter * 1 millimeter square lattice in coated surface with drawing the lattice device, the model of producing with Minnesota Mining and Manufacturing Company is 600 smooth being bonded on the grid of adhesive tape, do not stay a space, vertically uncover with prestissimo then, whether observation cut edge has comes off.Is 5B as the demoulding amount between 0-5 area %, is 4B between 5-10 area %, is 3B between 10-20 area %, is 2B between 20-30 area %, is 1B between 30-50 area %, is 0B more than 50 area %.
Wearability is measured: color material is put into oscillating mill continuous shaking grinding take out product after 2 hours, whether the corner angle of observing the material material have with surperficial plated film comes off.
The corrosion resistance test: corrosion resistance is weighed by neutral salt spray (NSS) test, method is as follows: it is in 35 ℃, the chamber (HOLINK H-SST-90 salt spraytest machine) of humidity 〉=85%RH that color material is placed on temperature with the inclination angles of 25 degree, solution (solution compolision: 50 grams per liter NaCl), took out after spraying continuously 48 hours, 144 hours and 168 hours with pH=6.8; Whether dry up with normal temperature clear water flushing 5 minutes and with hair-dryer, at room temperature placed 1 hour, observing the color material outward appearance has unusually (hot spot or corrosion line).
Test result is as shown in table 1.
Table 1
| Color material | Chromatic value (L, a, b) | Adhesion | Wearability | Corrosion resistance (48,144,168 hours) | |
| Embodiment 1 | ??D1 | ??34，56，-90 | ??4B | Corner angle and surface are all without any coming off | All no abnormal |
| Embodiment 2 | ??D2 | ??56，86，-26 | ??4B | Corner angle and surface are all without any coming off | All no abnormal |
| Embodiment 3 | ??D3 | ??96，-17，100 | ??4B | Corner angle and surface are all without any coming off | All no abnormal |
| Comparative Examples 1 | ??DD1 | ??85，-15，82 | ??4B | Corner angle and surface are all without any coming off | All no abnormal |
| Comparative Examples 2 | ??DD2 | ??92，-10，54 | ??4B | Corner angle and surface are all without any coming off | All no abnormal |
| Embodiment 4 | ??D4 | ??33，60，-70 | ??4B | Corner angle and surface are all without any coming off | All no abnormal |
| Embodiment 5 | ??D5 | ??37，52，-56 | ??4B | Corner angle and surface are all without any coming off | All no abnormal |
From the test result of table 1 as can be seen, aspect adhesion, wearability and corrosion resistance, the color material D3 of embodiment 3 preparations is similar with the color material DD1-DD2 that Comparative Examples 1-2 prepares.But from chromatic value, the color of the color material D3 of embodiment 3 preparations of gained is darker than the color material DD1-DD2 of Comparative Examples 1-2 preparation when adopting technical scheme provided by the present invention to be controlled at the optical thickness of every tunic in the solid color optical wavelength range, and range estimation as can be seen, DD1-DD2 compares with color material, color material D3 has stronger metal-like, illustrated that thus the prepared color material of the present invention is keeping adhesion, wearability and corrosion resistance preferably under the prerequisite, color is darker and have a stronger metal-like.
Claims (10)
1, a kind of color material, this color material comprises base material and the film that is positioned on this substrate surface, it is characterized in that, the color of described substrate surface is that chromatic value is positioned at L:0-5, a:0-3, the black in b:-10 to 2 interval, L represents lightness index, a represents red green product index, b represents champac chromaticity index, this film comprises alternatively distributed high index of refraction optical film and low-refraction optical film, the refractive index of described high index of refraction optical film is 2-3, the refractive index of described low-refraction optical film is 1.1-1.7, the optical thickness of each high index of refraction optical film and low-refraction optical film all the monochromatic wave-length coverage of each comfortable same kind 1/4th in, total number of plies of high index of refraction optical film and low-refraction optical film is at least 3.
2, color material according to claim 1, wherein, the optical thickness of each high index of refraction optical film and the low-refraction optical film X that all respectively does for oneself, X is in a scope of following scope: 100 nanometers≤X≤112.5 nanometers, 112.5 nanometers＜X≤120 nanometers, 120 nanometers＜X≤122.5 nanometers, 122.5 nanometers＜X≤125 nanometers, 125 nanometers＜X≤140 nanometers, 140 nanometers＜X≤145 nanometers, 145 nanometers＜X≤150 nanometers, 150 nanometers＜X≤162.5 nanometers or 162.5 nanometers＜X≤187.5 nanometers.
3, color material according to claim 1, wherein, total number of plies of high index of refraction optical film and low-refraction optical film is 3-21.
4, color material according to claim 3, wherein, total number of plies of high index of refraction optical film and low-refraction optical film is 5-15.
5, color material according to claim 1, wherein, the refractive index of described high index of refraction optical film is 2-2.8, the refractive index of described low-refraction optical film is 1.3-1.7.
6, according to any described color material among the claim 1-5, wherein, described high index of refraction optical film is the layer of one or more formation in titanium dioxide, tantalum pentoxide, niobium pentaoxide, zinc sulphide and the zirconium dioxide, and described low-refraction optical film is the layer of one or more formation in silicon monoxide, silica and the magnesium fluoride.
7, color material according to claim 6, wherein, described high index of refraction optical film is a titanium dioxide layer, described low-refraction optical film is a silicon dioxide layer.
8, color material according to claim 1, wherein, described base material is from polycarbonate plastic, poly methyl methacrylate plastic or acrylonitrile-butadiene-styrene copolymer plastics as black, and metal, alloy, plastics, pottery, the glass of the non-black of black rete is perhaps arranged for the surface.
9, color material according to claim 8, wherein, the thickness of described black rete is the 50-200 nanometer.
10, according to Claim 8 or 9 described color materials, wherein, described black rete is TiC individual layer, TiNC individual layer, three layers of Ti/TiC/TiNC or TI/TiN/TiNC/TiC four-layer structure.
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