CN100567406C - Aluminum effect pigment blends - Google Patents

Abstract

The invention provides a kind of adulterant, it shows the opacifying power of raising, and comprises (a) at least a effect pigment and the about 0.01 kaolin pigment to about 5 weight % that (b) accounts for described adulterant gross weight.This adulterant can be advantageously used in automobile and industrial coating purposes.

Description

Aluminum Effect Pigment Blends

This application claims priority to US Provisional Application 60/569,940, filed May 11,2004.

Background of the invention

Effect pigments, also known as pearl pigments and pearlescent pigments, are chemicals with special luster widely used in various high-end applications (such as automotive finishes). Effect pigments simulate pearlescent luster or as in LM Greenstein, "Nacreous (Pearlescent) Pigments and Interference Pigments", The Pigment Handbook , Vol. 1, Properties & Economics, 2nd Edition, edited by Peter A. Lewis, John Wiley & Sons, Inc. (1988) Disclosed in , has effects ranging from silky to metallic luster. One of the characteristics of effect pigments is that they produce various optical effects depending on the viewing angle.

Pearlescent or pearlescent pigments mimic the effect of natural pearls and consist of flakes that are transparent in the visible region of the spectrum. These flakes are very smooth and part of the light entering the flakes is reflected and part of the light is transmitted through the flakes. The portion of the light that is transmitted is then reflected by other layers of the sheet. The result is multiple reflections from many layers, and this creates glossy depth because the eye is not focused on a particular layer.

The resulting reflection is specular because the angle of incidence is equal to the angle of reflection. The amount of light reflected at non-specular angles is small, and the amount of reflected light decreases very rapidly when crossing specular angles. The result is that pearlescent pigments are extremely sensitive to viewing angle. To reflect the maximum amount of light, the flakes must be extremely smooth. Any surface roughness causes light to scatter in a non-specular manner and reduces the gloss effect.

The flakes must be aligned parallel to each other and to the substrate for maximum reflectivity. If not arranged this way, the light will reflect randomly and also reduce the shine. The amount of light reflected depends on the index of refraction. As the index of refraction increases, the amount of reflected light increases.

However, in many applications, effect materials have an undesirable degree of hiding power. To remedy this problem, various materials have been added to the effect pigment formulations.

Effect pigments are usually based on platelet-shaped particles. Since optical effects are the result of multiple reflections and transmissions of light, there is a need to provide particles aligned in the medium in which they are found and optimize the desired effect. If there are misaligned particles or additive particles or both, it interferes with this purpose and reduces the optical effect of the pigment. Therefore, any additives used to improve hiding are generally considered to need to be somehow bound to the flakes rather than being present as part of a physical mixture.

Effect pigments, in particular mica-based pigments, have long been used in automotive exterior coatings, in particular to achieve non-ferrous effects. This metallic effect is characterized by a light that suddenly (flip-flops) to a dark color when the viewing angle is changed. In the case of mica pigments, this sudden change is from the reflective color of the mica to a darker color. For various reasons, most automotive exterior coatings need to be opaque to ultraviolet and visible light when applied at conventional thicknesses of about 0.5 to 1.2 mils (about 12.7-30.5 microns). The problem is maintaining the "face" or reflective color caused by the mica pigments while producing hiding, since opaque pigments are known to greatly reduce the color/effect of the mica pigments.

Metallic flake pigments, such as aluminum, are opaque, that is, no light is transmitted. Due to the aforementioned properties, metallic flake pigments cover well, so that the substrates coated with them can be completely concealed. This property is called hiding power.

Blends of aluminum metallic pigments with mica pigments such as _TiO2 coated mica pigments are well known. For example, U.S. Patent 6,503,965 discloses an ink containing only non-fluorescent pigments, or two or more non-fluorescent pigments (which can be selected from a long list of such pigments, including thicknesses of about 0.1 to about 2 micron aluminum flake pigments) mixed with TiO ₂ and Fe ₂ O ₃ coated mica pigments. US Patent 2,278,970 proposes that mica flakes are suitable as inert fillers in combination with aluminum flake pigments to prolong the covering qualities of the latter. US Patent 6,331,326 discloses the application of a primer and/or a first metallic paint comprising non-leafing aluminum flakes, followed by the application of a second metallic paint comprising flakes. Primers can be blended with flat pigments such as aluminum flakes and flaky mica to improve hiding power or to cover sand scratches on the substrate.

US Patent 6,306,931 discloses the use of preferably flake pigments having a median particle size of about 100 microns or less, or especially 10 microns or less, for incorporation into paints. US Patent 6,398,861 discloses the use of aluminum flake pigments ranging in diameter from 6 microns to 600 microns for coatings.

Silberline.com advertises that its vacuum-metallized thin aluminum flakes can be used in cosmetics to achieve smooth mirror-like metallic effects and create highly reflective glossy finishes.

Blends of aluminum with non-effect materials are also known. For example, US Patent 4,937,274 proposes mixing aluminum flake pigments with ultrafine materials such as titanium dioxide. This coating composition does not include any interference (effect) mica pigments, but is said to still provide similar effects to coatings comprising interference mica pigments and aluminum flakes.

US Patent 6,267,810 proposes the use of Al2O3 flakes comprising 15 grams of Cromal IV (Eckart) AI 14-18 microns, and 15 grams of _Fe2O3 -coated _Al2O3 particle size 5-60 microns in _the printing ink in _Example 2. pigment. There is no mention of the effects (if any) provided by this pigment.

颜料是在物理气相沉积法中制成的显微薄铝片，以提供具有均匀厚度和均匀光滑表面的颜料。平均粒度范围为10-13微米。在2004年5月11日，www.cosmetics.com报道了Eckart’s

超亮铝分散体在与珠光混合时提供了多色效果。该文章没有提及铝颜料的厚度或与珠光结合使用的铝颜料的百分比。On May 11, 2004, www.eckartamerica.com reported,

Pigments are microscopically thin aluminum flakes produced in a physical vapor deposition process to provide pigments with uniform thickness and uniform smooth surface. The average particle size range is 10-13 microns. On May 11, 2004, www.cosmetics.com reported on Eckart's

Ultra-bright aluminum dispersions provide multi-color effects when mixed with pearlescent. The article does not mention the thickness of the aluminum pigment or the percentage of aluminum pigment used in combination with pearlescent.

There is still a need to provide new high hiding power compositions and it is an object of the present invention to provide such compositions. This and other objects of the present invention will become apparent to those skilled in the art from the following detailed description.

Summary of the invention

The present invention relates to effect pigment compositions which exhibit increased hiding power. More particularly, the invention relates to effect pigment compositions comprising effect pigments and aluminum pigments which exhibit increased hiding power. The invention also provides compositions using such formulations as pigments. Improved hiding power is achieved while maintaining the surface color of the effect pigments. Thus, the present invention provides admixtures comprising: (a) at least one effect pigment; and (b) from about 0.01 to about 5% by weight of an aluminum metal having a mirror-like appearance, based on the total weight of the admixture pigment.

Brief description of the drawings

Figure 1 shows the hiding power of Comparative Examples A and B and Inventive Example 1.

Figure 2 shows the chromaticity of Inventive Example 1.

FIG. 3 shows the brightness of Invention Example 1.

Figure 4 shows the brightness for Comparative Example B and Inventive Example 1 at the same dry film thickness at the mask.

Figure 5 shows the color strength for Comparative Example B and Inventive Example 1 at the same dry film thickness at the hide.

Figure 6 shows the color travel for Comparative Example B and Inventive Example 1 at the same dry film thickness at the mask.

Contents of the invention

The invention exhibits increased hiding power and comprises: (a) at least one effect pigment and (b) an aluminum pigment.

Effect pigments (a):

The effect pigments usable in the present invention may be any known effect pigments, preferably mica-based effect pigments, optionally coated with various inorganic colorants. The different materials or substrates used in the present invention may have any form including flakes, spheres, cubes, needles, whiskers or fibers. Different substrates, or different substrate morphologies, or mixtures of the two may be used in the present invention. Examples of usable flake materials include flake alumina, flake glass, flake titanium dioxide, aluminum, mica, bismuth oxychloride, flake iron oxide, flake graphite, flake silica, bronze, stainless steel, natural pearl , boron nitride, silicon dioxide, copper flakes, copper alloy flakes, zinc flakes, zinc alloy flakes, zinc oxide, enamel, clay, porcelain, gypsum, titanium silicate, etc. Mica is desirable due to its high transparency, strong reflectance and strong chroma, especially due to the presence of small coated flakes. Glass flakes are characterized by high transparency, a very white block color and a shimmering effect in strong light.

Examples of useful spherical materials include glass, plastic, ceramic, metal, or alloys, and the spheres can be solid or hollow. Useful glass spheres are disclosed in US Patent No. 5,217,928, which is hereby incorporated by reference in its entirety.

Available cubic materials include glass cubes.

One useful metal oxide coated glass sheet is described in commonly assigned US Patent 5,753,371, the disclosure of which is incorporated herein by reference. This patent discloses that C glass is better coated than A or E glass. A glass is soda lime glass, which is commonly used in making windows, and contains more sodium than potassium, and also contains calcium oxide. C-glass, also known as chemical glass, is a form that is resistant to acid and moisture corrosion. E or electric glass, as the name suggests, is designed for use in electronics and, although very stable at high temperatures, is susceptible to chemical attack. See also commonly assigned US Patent 6,045,914. Engelhard can be used in the present invention Pearlescent pigments (based on calcium sodium borosilicate containing tin oxide and titanium dioxide).

The most widely used metal oxide is titanium dioxide, followed by iron oxide. Other useful oxides include, but are not limited to, oxides of tin, chromium, and zirconium, and mixtures and combinations of oxides. Other useful metal oxide combinations include SiO ₂ on calcium aluminum borosilicate followed by TiO ₂ ; substrate/SiO ₂ /Fe ₂ O ₃ ; substrate/TiO ₂ /SiO ₂ ; substrate /TiO ₂ /SiO ₂ /TiO ₂ ; base material/TiO ₂ /SiO ₂ /Fe ₂ O ₃ ; base material/TiO ₂ /SiO ₂ /Cr ₂ O ₃ ; base material/Fe ₂ O ₃ /SiO ₂ ; Material/Fe ₂ O ₃ /SiO ₂ /Fe ₂ O ₃ ; Substrate/Fe ₂ O ₃ /SiO ₂ /TiO ₂ ; Substrate/Fe ₂ O ₃ /SiO ₂ /Cr ₂ O ₃ ; Substrate/Cr ₂ O ₃ /SiO ₂ /Cr ₂ O ₃ ; and substrate/Cr ₂ O ₃ /SiO ₂ /Fe ₂ O ₃ . Other combinations of the above layers will be apparent to those skilled in the art. _SnO2 can also be used on calcium aluminum borosilicate.

A performance-enhancing intermediate layer may also be used. Useful interlayer materials include hydroxides and oxides of Al, Ce, Cr, Fe, Mg, Si, Ti, and Zr. Almost any organic or inorganic substance can be a useful interlayer for adhesion promotion, mechanical integrity, product reinforcement, or other desirable properties.

Most preferred are the known metal oxide-coated mica effect pigments. Metal oxide coated substrate pearl pigments are well known and exemplified by titanium dioxide and/or iron oxide coated mica. These pigments are described in US Patent Nos. 3,437,513; 3,418,146; and 3,087,828, which are hereby incorporated by reference in their entirety. A preferred pearl pigment is titanium dioxide coated mica. The mica flake substrate typically has a length of about 1 to about 75 microns, preferably about 5 to about 35 microns, and a thickness of about 0.3 to about 3 microns, although larger and smaller sizes can also be used. Generally, titanium dioxide or other metal oxides can be coated on the surface of the substrate to a thickness of about 20-350 nanometers, or to a thickness of about 50 to 500 mg/square meter, depending on the specific surface area of the substrate (unit square meter /gram). Depending on the thickness of the metal oxide coating, the pigments can exhibit interference or reflection colors of blue, green, yellow, red, etc.

Metal oxide coated pigments can optionally be coated with a variety of inorganic and organic colorants or dyes. Examples are described in, eg, US Patents 4,084,983; 4,755,229; 4,968,351; and 6,436,538.

Metal oxide-coated pigments may, if desired, contain absorbing pigments that are water-insoluble, transparent (i.e., substantially non-light-scattering) and cannot be formed in situ from water-soluble reactants but can be highly dispersed in anionic polymeric in water or water-alcohol. These include, for example, organic pigments of the following types: azo compounds, anthraquinones, perinones, perylenes, pyrroles (e.g. diketopyrrolopyrrole), quinacridones, thioindigos, dioxins oxazines and phthalocyanines and their metal complexes. Absorbing pigments, depending on their color strength, are used in concentrations ranging from about 0.01% to about 30%, preferably 0.1% to 10%, by weight of the sheet-form substrate.

Color can be adjusted by mixing and combining pigments if desired. In general, it is preferred to mix pigments with the same or similar reflective colors, since the reflective colors are mixed additively and the color strength is reduced when mixing very different reflective colors. The absorbing pigment components are subtractively mixed and normal pigment blending procedures are followed.

Aluminum pigment (b):

薄铝片。The flake pigments used in the present invention act like non-leafing grades by distributing themselves throughout the final product. The particle size, ie, largest dimension, of the pigments is generally from about 1 to about 200 microns. Preferably, the average particle size of the flake pigments does not exceed about 20 microns. Preferably, the flake pigments used in the present application have a thickness of about 0.01 to about 0.05 microns. These pigments are often referred to as vacuum metallized flakes or VMF type aluminum pigments due to their manner of manufacture, ie vacuum metallization or physical vapor deposition on the substrate. Conventional flake pigments typically have a thickness of about 0.1 micron to about 0.5 micron, thus, the flake pigments of the present invention are significantly thinner. Compared to conventional flake pigments, the flake pigments of the present invention have an extremely smooth surface and thus a mirror-like appearance. One commercially available thin aluminum sheet is from Silberline

thin aluminum sheet.

The results obtained with the VMF type flake pigments of the present invention are surprising and unexpected. Since these VMF-type flake pigments are much thinner than conventional flake pigments, there are more flakes per unit weight. As shown in Comparative Example B below, when using conventional thin aluminum flakes, the more flakes are present, the greater the color loss of the effect pigment. Since there are more VMF flakes than conventional flakes for any given weight of aluminum pigment, it is expected that the reduction in surface color of the mica pigment should be achieved more rapidly. However, the opposite occurs if the VMF-type aluminum pigment is present in an amount not exceeding about 5% by weight of the total weight of the VMF-type aluminum flake pigment and effect pigment blend. Preferably, the aluminum pigment comprises from about 0.1 to about 5% by weight of the total weight of the blend, and more preferably from about 0.25 to about 0.5% by weight.

The flake pigments and effect pigments used in the present invention may be mixed in any convenient manner. No special program is required. One useful method is disclosed in Silberline US Patent 4,725,317, which is hereby incorporated by reference in its entirety.

The method of preparation comprises forming a cohesive paste comprising an organic binder medium, an organic liquid vehicle and a metal pigment in powder or flake form, the paste being formed by combining a first component comprising an organic binder medium with a metal pigment comprising wherein one or both of the first and second components comprise an organic liquid carrier, and the paste comprises 1 to 70%, preferably 3 to 45%, especially 5% by weight of the metal pigment. to 30% of the organic binder medium, remove almost all of the organic liquid carrier from the bonding paste, optionally after subdividing the bonding paste into particles (such as pellets, sheets or granules, each containing a variety of dispersed The organic fluid carrier is removed after the metal pigment particles in the organic binder medium matrix).

The resulting solid metallic pigment composition comprises metallic pigment particles dispersed in a matrix of organic binder material, the relative proportions of binder material and metal in the solid product being substantially the same as in the bonding paste. The bonding paste is preferably subdivided, for example by pelletizing, granulating or tableting, to facilitate the removal of the organic liquid carrier, then the solid metallic pigment composition is easy to handle, non-explosive and easy to use in a variety of applications physical form. For example, the organic liquid carrier can be removed from the bonding paste at elevated temperature in a vacuum oven.

A binder material that forms a stable concentrated solution in the same organic liquid (eg, mineral spirit) as used to prepare the metal flakes can be used. Because this greatly simplifies the recovery of re-used organic liquids. In principle, however, as organic liquid carrier any organic liquid or mixture of liquids which are chemically inert to metal powders and binder materials and which have a boiling point lower than that used as such or during removal of the organic liquid carrier can be used The boiling point of any liquid binder formed by melting.

Apparatus suitable for the preparation of these easily manipulated physical forms are well known to those skilled in the art. Pellets can be formed by punching the precursor bonding paste through a number of appropriately sized holes in a plate. The organic liquid carrier is then removed, for example by evaporation.

use:

The products of the invention can be used in any application in which pearlescent pigments have been used before. For example, the products of the present invention have unlimited use in all types of automotive and industrial coating applications, especially in the field of organic colored coatings and inks where deep color strength is required. For example, these pigments can be used in primary colors or as fixatives to paint all types of automobiles and bicycles. Similarly, they can be used on all clay/formica/wood/glass/metal/enamel/ceramic and non-porous or porous surfaces. Pigments can be used in powder coating compositions. They can be added to plastic products used in the toy industry or in the home. The present blend can also be incorporated into polymeric containers or packaging, such as personal care and cosmetic containers, for example for skin care products (such as face masks, UV protection lotions, liquid soaps and antibacterial products); for hair care products such as shampoos, Hair conditioner, hairspray or hairspray, and hair dye; cosmetic products, such as nail polish, mascara, eye shadow, and perfume; shaving cream, deodorant, and body oil. These pigments can be impregnated into fibers to impart new and aesthetic coloration to cloths and carpets. They can be used to improve the appearance of shoes, rubber and vinyl/marble flooring, vinyl siding, and all other vinyl products. Additionally, these colors can be used in all types of hobby modeling.

The above-mentioned compositions in which the compositions of the present invention can be used are well known to those of ordinary skill in the art. Examples include printing inks, nail polishes, lacquers, thermoplastic and thermoset materials, natural and synthetic resins. Some non-limiting examples include polystyrene and its mixed polymers, polyolefins (especially polyethylene and polypropylene), polyacrylics, polyvinyls (such as polyvinyl chloride and polyvinyl acetate), polyesters and rubber, as well as monofilaments made of viscose and cellulose ethers, cellulose esters, polyamides, polyurethanes, polyesters (such as polyethylene terephthalate) and polyacrylonitrile.

For a thoughtful introduction to the uses of various pigments, see Temple C. Patton, ed., The Pigment Handbook, Vol. 2, Applications amd Markets, John Wiley and Sons, New York (1973). Also, for inks, see e.g.: R.H. Leach, ed., The Printing Ink Manual, Fourth Edition, Van Nostrand Reinhold (International) Co. Ltd., London (1988), especially pp. 282-591; for coatings, see : C.H. Hare, Protective Coatings, Technology Publishing Co., Pittsburgh (1994), especially pp. 63-288. The discussion of the ink, coating and plastic compositions, formulations and vehicles in which the compositions of the present invention may be used, including various amounts of colorants, in the foregoing references is hereby incorporated by reference. For example, pigments may be used in offset lithographic inks in amounts of 10 to 15%, with the remainder being a vehicle comprising gelled and ungelled hydrocarbon resins, alkyd resins, wax compounds and aliphatic solvents. Pigments may also be used in automotive coating formulations in amounts of 1 to 10% with other pigments which may include titanium dioxide, acrylic lattices, coalescents, water or solvents. The pigment can also be used in plastic color concentrates in polyethylene in amounts of 20 to 30%.

In cosmetics and personal care, these pigments can be used in the eye area and in all external and rinse-off applications. For example, they can be used in hairsprays, face powders, leg cosmetics, insect repellent lotions, mascaras/lotions, nail polishes, nail polish removers, body lotions, and all types of shampoos (gel or liquid). Additionally, they can be used in shaving creams (for aerosols, brushless, foaming concentrates), skin shine sticks, skin foundations, hair balms, eye shadows (liquid, waxy, powdery, stick, compressed or cream), eyeliner, cologne stick, cologne, cologne emollient, foam bath, body wash (moisturizing, cleansing, pain relief, astringent), aftershave, after-bath lotion and sunscreen.

Analysis:

Samples were prepared by ASTM D6762-02a Standard Test Method for Determination of Paint Hiding Power by Visual Inspection of Sprayed Coatings, and then followed by ASTM D1400-00 Standard Test Method for Non-Conductive Coatings Applied to Nonferrous Metal Substrates Non-destructive measurement of dry film thickness) Test the fabricated sample, from which the dry film thickness of the mask is determined.

The presence of aluminum metallic pigments can be determined by optical microscopic analysis.

The presence of blends can be determined by light microscopic analysis.

In order to further illustrate the present invention, a number of non-limiting examples are listed below. In these examples, as well as throughout the application and claims, all parts and percentages are by weight and all temperatures are in °C unless otherwise indicated.

Faced with the automotive industry's need for a new hiding power composition, we solved the problem as follows.

Comparative example A

3650颜料是Silberline提供的薄铝片，具有1微米厚度，并通过球磨法制成，并因此具有粗糙的表面光洁度和暗淡外观。绿色颜料是Engelhard Corporation提供的效应颜料，并包含大约66重量％TiO₂和31重量％云母。以99.75％比0.25％、99.5％比0.5％、99％比1％、97.5％比2.5％、和95％比5％的比率制造3650颜料与

绿色颜料的掺合物。测定这些掺合物和100％

绿色颜料的遮盖力并列在下表和图1中。

The 3650 pigment is a thin aluminum flake supplied by Silberline with a thickness of 1 micron and is produced by ball milling and thus has a rough surface finish and a dull appearance. The green pigment is an effect pigment supplied by Engelhard Corporation and contains approximately 66 wt% _TiO2 and 31 wt% mica. Manufactured at ratios of 99.75% to 0.25%, 99.5% to 0.5%, 99% to 1%, 97.5% to 2.5%, and 95% to 5% 3650 Pigments with

Blend of green pigments. Assay these blends and 100%

The hiding power of the green pigments is listed side by side in the table below and in Figure 1.

Comparative Example B

颜料是Silberline提供的薄铝片，具有0.1微米厚度，并具有抛光的表面光洁度和较明亮外观。以99.75％比0.25％、99.5％比0.5％、99％比1％、97.5％比2.5％、和95％比5％的比率制造如上文对比例A中所述的SPARKLE

颜料与

绿色颜料的掺合物。测定这些掺合物和100％

绿色颜料的遮盖力并列在下表和图1中。SPARKLE

The pigments are thin aluminum flakes supplied by Silberline, which are 0.1 micron thick and have a polished surface finish and brighter appearance. SPARKLE as described above in Comparative Example A was made at ratios of 99.75% to 0.25%, 99.5% to 0.5%, 99% to 1%, 97.5% to 2.5%, and 95% to 5%.

paint with

Blend of green pigments. Assay these blends and 100%

The hiding power of the green pigments is listed side by side in the table below and in Figure 1.

Invention Example 1

颜料是Silberline提供的薄铝片，是通过真空金属化制成的，具有大约0.01微米至大约0.5微米的厚度，并具有光滑的表面光洁度和镜状外观。以99.75％比0.25％、99.5％比0.5％、99％比1％、97.5％比2.5％、和95％比5％的比率制造如上文对比例A中所述的

颜料与

绿色颜料的掺合物。测定这些掺合物和100％绿色颜料的遮盖力并列在下表和图1中。这些掺合物在遮盖处产生合意的干膜厚度。这些比率的色数据在图2和3中。We then unexpectedly discovered the following unexpected results.

The pigments are thin aluminum flakes supplied by Silberline, produced by vacuum metallization, have a thickness of approximately 0.01 microns to approximately 0.5 microns, and have a smooth surface finish and a mirror-like appearance. 99.75% to 0.25%, 99.5% to 0.5%, 99% to 1%, 97.5% to 2.5%, and 95% to 5% as described in Comparative Example A above

paint with

Blend of green pigments. Assay these blends and 100% The hiding power of the green pigments is listed side by side in the table below and in Figure 1. These blends produce a desirable dry film thickness at the hide. The color data for these ratios are in Figures 2 and 3.

Since VMF-type aluminum flakes are thinner than conventional aluminum flakes, it would have been expected that more flakes per gram of VMF would result in a higher opacity while reducing the surface color of the effect pigments. Unexpectedly, we observed the opposite result. Inventive Example 1 ( A ratio of effect pigments to aluminum of 99.5 to 0.5) has surprisingly better brightness, color strength and color transfer. Thus, since Comparative Example B required more than 10× (10 times) the amount of conventional aluminum flakes to achieve the same opacity as the present invention, it was not expected that the inventive Example 1 would maintain the surface color of the effect pigments. Improved coverage.

Ratio of effect pigment (a) to aluminum pigment (b) 100:0 99.75:0.25 99.5:0.5 99:1 97.5:2.5 95:5 Comparative Example A Hiding Power (Dry Film Thickness of Covering Part (mil)) 10.4 6.8 4.4 4.2 3.5 2.9 Comparative Example B Hiding Power (Dry Film Thickness of Covering Part (mil)) 10.4 4.3 3.5 3.0 2.4 1.6 Invention Example 1 Hiding power (dry film thickness (mil) at the covering place) 10.4 2.1 1.6 1.1 0.6 0.2

Invention Example 2

The metal oxide-coated material used in Inventive Example 1 was replaced with the same effect pigment that was further treated with a weatherability treatment according to commonly assigned US Patent 5,759,255, which is hereby incorporated by reference.

Invention Example 3

The blend of Inventive Example 1 was added to powder eyeshadows of the following formulations:

Ingredients Parts by weight

Talc 19.4

Mearlmica SVA 15.0

Magnesium myristate 5.0

Silica 2.0

Preservatives 0.5

The product of embodiment 1 50.0

Octyl Palmitate 7.0

Isostearyl Neopentanoate 1.0

BHT 0.1

Invention Example 4

The blend of Inventive Example 1 was added to nail polishes of the following formulations:

Ingredients Parts by weight

             

Suspension paint SLF-2 82.0

The product of invention embodiment 1 3.0

Paint 127P 10.5

Polynex B-75 2.5

Ethyl acetate 2.0

Invention Example 5

A charge of 1.0% by weight of the product of Invention Example 1 was added to and dispersed in polypropylene and injection molded into a flat sheet.

Invention Example 6

The blend of Inventive Example 1 was added to the waterborne coating composition at a pigment/coating ratio of 0.13. Spray the paint onto the primed steel panel to about 15-20 microns. This base coat was flashed for at least 10 minutes, then baked at 85°C for 6.5 minutes, then cooled. A clear coat was then applied to a thickness of 40-45 microns and the resulting panels were baked at 140°C for 30 minutes.

Invention Example 7

The effect material blend of inventive example 1 was sprayed with a corona gun in a polyester TGICpower coating at a loading of 3.5% by weight onto a RAL 9005 black powder sprayed substrate.

Invention Example 8

The pigments of this invention can be made into powdered eye shadows by thoroughly blending and dispersing the following materials:

Ingredient Parts by Weight

(滑石)                         18MEARLTALC

(talc) 18

SVA(云母)                    20

SVA (Mica) 20

Magnesium myristate 5

Red 424C(红色TiO₂涂覆云母)        20Silica 2

Red 424C (red TiO ₂ coated mica) 20

Purple 525C (purple _TiO2 coated mica) 13

Nu-Antique蓝色626CB(TiO₂

Nu-Antique blue 626CB (TiO ₂

Coated Mica/Iron Oxide Coated Mica) 2

Cerise Flambé55OZ(氧化铁涂覆

Cerise Flambé 55OZ (iron oxide coating

mica) 2

Preservatives & Antioxidants Sufficient (q.s.)

Then 7 parts octyl palmitate and 1 part isostearyl pivalate were heated and mixed until uniform, at which point the resulting mixture was sprayed into the dispersion and blending continued. The blended material is powdered, then 5 parts of Cloisonne Red 424C and 5 parts of the pigment blend of the invention are added and mixed until a uniform powder eye shadow is obtained.

Invention Example 9

A pigment blend may be made into a lipstick by adding the listed ingredients in the following amounts to a heated vessel and raising the temperature to 85 ± 3°C:

Ingredient Parts by Weight

Candelilla Wax 2.75

Carnauba Wax 1.25

Beeswax 1.00

Ozone wax 5.90

Paraffin 6.75

Microcrystalline Wax 1.40

Oleyl alcohol 3.00

Isostearyl Palmitate 7.50

Isostearyl Isostearate 5.00

Caprylic/Capric Triglyceride 5.00

Bis-diglyceryl polyol adipate 2.00

Acetylated lanolin alcohol 2.50

Sorbitan tristearate 2.00

Aloe Vera 1.00

Castor Oil 37.50

Red 6 Lake 0.25

Tocopheryl acetate 0.20

Phenoxyethanol Isopropylparaben and Paraben

Butyl esters 1.00

Antioxidant Sufficient (q.s.)

A mixture of 13 parts of the Pigment Blend of Inventive Example 1 and 1 part of Kaolin was added and mixed until all the pigments were well dispersed. Add spices as desired, and stir to combine. The resulting mixture is poured into a mold at 75±5°C, cooled and fired into a lipstick.

Various changes and modifications may be made in the methods and products of the present invention without departing from the spirit and scope of the present invention. The embodiments described and illustrated herein are intended to further illustrate the invention, but not to limit it.

Claims (18)

1. adulterant comprises:

(a) at least a effect pigment; With

(b) account for the aluminum metal pigment of 0.01 to 5 weight % of described adulterant gross weight, this aluminum metal pigment has 0.01 to 0.05 micron thickness, and has specular outward appearance.

2. the adulterant of claim 1, wherein said effect pigment (a) comprises mica.

3. the adulterant of claim 2, wherein said effect pigment (a) is the mica of metal oxide-coated.

4. the adulterant of claim 3, wherein said effect pigment (a) is the mica of titanium dioxide-coated.

5. the adulterant of claim 3, wherein said effect pigment (a) are the micas that ferrous oxide applies.

6. wherein there are at least two kinds of described effect pigments in the adulterant of claim 1.

7. the adulterant of claim 1, wherein said aluminum metal pigment (b) exists with 0.25 to 0.5 weight %.

8. the adulterant of claim 1, wherein said aluminum metal pigment (b) is made by vacuum metallization processes.

9. the adulterant of claim 1, wherein said aluminum metal pigment (b) is made by vapour deposition process.

10. the adulterant of claim 1, wherein said effect pigment (a) has flat substrates.

11. the adulterant of claim 10, wherein said flat substrates are selected from the group of being made up of tabular alumina, foliated glass, plate-like titanium dioxide, aluminium, mica, pearl white, flake ferric oxide, flake graphite, stainless steel, natural peral, boron nitride, silicon-dioxide, copper foil, copper alloy thin slice, zinc thin slice, zinc alloy thin slice, zinc oxide, enamel, potter's clay, porcelain, gypsum, titanium silicate.

12. the adulterant of claim 10, wherein said flat substrates are flaky silicon dioxide.

13. the adulterant of claim 10, wherein said flat substrates are bronze.

14. coating, printing ink or plastics composite wherein contain the adulterant of claim 1.

15. the composition of claim 14, it is the automobile overcoat compositions.

16. coating compositions wherein contains the adulterant of claim 1.

17. the composition of claim 16, it is the automobile overcoat compositions.

18. improve the method for opacifying power, comprise the steps:

To the adulterant of surface applied claim 1, thereby hide this surface.

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