Additive effect pigments and Performance Overview Introduction

The amount of additive is generally between 0.1 to 2.0%, by adding the pigment used to improve various properties of the pigment, such as to adjust the viscosity, anti-settling crust, accelerate the drying, anti-dehydration, defoaming defoaming improve thixotropy, Anti blurs, eliminating caking, antibacterial and antifungal, improved flow and leveling, adjusting gloss, improved stability, improved brush, improve hiding power and so on. Plasticizer for PVC
Thixotropic paints with agitation and the next still carried in gel - liquid - gel nature of the process. Coating at rest is usually solid or gel form, but becomes agitated good mobility of the material, this situation does not drip through the coating to the show. Gelatinous coating formed on the brush, the brush will not flow or drip down, brushing becomes liquid when can a good flat brush, brush formed on the surface after construction gel, to prevent sagging or falling blocks. Increased sediment and expansive agent material, you can change the pigment in the binder dissolution characteristics, giving the viscous flow properties, such as bentonite, specialty of Que-like compounds, amines soap.
To said paint, enamel paint or solid form after aging capacity, in fact, is the dispersion of solids in a liquid case, although the nature of a solid, but still maintain a substantial amount of liquid. The reason why the phenomenon of gel or liver, and the base material because the reaction of the pigment, such as basic pigments (zinc oxide, white lead and red lead) in an acidic binder grinding. Oxidized rubber paint cans hidden in the formation of colloidal sometimes, you can add a small amount of chlorine propylene oxide additives to prevent this situation from occurring. PVC impact modifier
Eliminate most of the generated block lumps or agglomeration (flocculation) of the agent over polymeric material is a liquid, tends to reduce the wettability of the base material, to a certain extent cause the precipitation of the pigment from the dispersed phase. In the manufacture of paint, if the viscosity is too low, you can add some oil over polymerization.

Pearlescent pigment in a variety of different printing methods Application

Pearlescent pigment in printing inks not only produces pearl effect while maintaining the original colors, and can bring a variety of effects and iridescent sheen metallic luster effect. Pearlescent pigments have been widely used in the printing industry, commonly used in a variety of wrapping paper, magazines, posters, textiles and other items printed. Metal soap
Pearlescent pigments have excellent dispersion force, generally only a slight stir mixed with low viscosity printing inks. As pearlescent pigments are layered, so only slightly when mixed with the ink mixing, avoid rude mechanical treatment, in order to avoid damage to the surface of pearl powder. Typically, the pearlescent pigment in printing ink production process of adding the last one. Use dispersing machines and high-speed mixer, a batch of products must be consistent with the shortest mixing time, it can avoid the color difference between product batches. Had to use a three-roll mill in the case of large roll gap adjustment possible, and in the shortest possible time to complete the mixing, so as not to affect the gloss pigment structural damage. Binders make use transparent material, avoid the use of opaque and additive effects of scattered light pearl effect. organic pigments
Judgment containing pearlescent pigment inks, overprint varnishes and coating effectiveness, on the substrate by the pigment distribution is uniform, depending only pigments are arranged in parallel with the substrate surface was the best. Suitable substrates can avoid the adverse effects of the printing effect, with a smooth, flat surface of substrates can arrange smooth gloss paint works best. In addition, plate, mesh lines between the pigment particle size, the optimum viscosity of the ink, the printing speed, drying conditions to avoid flocculation of the pigment ink dispersion, also very important. Pearlescent pigments scratch resistant, insulation, good acid and alkali.

Selection Pearlescent Pigments Inks Precautions

Pearlescent printing is screen printing to printing and security printing in the packaging of the more popular new print available, it is mainly used pearl ink pearl luster pearl ink is ink when printed pattern to change the angle, the ink color will change, thereby identify the authenticity. Pearlescent printing printing process is consistent with the traditional printing process, the key lies in the preparation of special light ink, which generally consists of binders, thickeners, pearlescent pigments, solvents, additives and other components. In the deployment of pearl ink, pearlescent pigment passive light flash effect is that the light conditions in order to show its flash effect. To take full advantage of this feature pearlescent material flutter, in the selection of Pearlescent Pigments inks, pay attention to grasp the following three relationships: PVC lubricant
Extravagant piece pearl diameter size and material relationship between the flash effect used in packaging printing pearlescent pigments are flaky, usually slice Trail walking distance between the flash source is also large, the flash effect will be scattered; Conversely, tablets diameter is small, the flash source spacing is small, the flash effect on the concentration of
Diameter of the pearlescent pigment chip size and the relationship between the intensity of the flash pearl pigment sheet larger diameter, the surface of the light by the multiple reflection, refraction more chance, the stronger the intensity of the flash; the contrary, the weak intensity of the flash
Pearlescent pigment flakes diameter size and cohesion resistance and the compound of the suspension link between settling. Special light PVC plasticizer is usually smaller chip size, the easier cohesion, the aspect ratio of the smaller particles, resulting in the compound also prone to subsidence link, or easily in suspension.
In order to make the pigment compound evenly on the link #-O-, must master the three based on the relationship. The density of material according to the link select the appropriate size and aspect ratio sheet pearlescent pigment ink formulation, a thickening agent can also be added to prevent the deposition of pearlescent pigments; or pre-wetting the pearlescent pigment dispersed in the link and then compound , which also could have been avoided particles agglomerate agglomerate ills of settlement

Water-based and solvent-based inks required for preparation of nano-pigments

In recent years, pigment-based ink jet technology acclaimed, primarily due to pigments and dyes generally performed better compared to water and light fastness. The current inkjet market, ink manufacturers and producers are increasingly demanding filling ink pigment pastes, including preparation, including a simple solution. Just added to the formulation of several of these additives and the "magic ingredient" ink jet printing can be made to meet the stringent requirements of high-performance ink jet printing. The following will explore both aqueous and solvent inks require fine pigment preparation.
Aqueous inkjet ink must elect one kind of match with the desired color hue pigments. The water, dispersing agent and other additives such as pigment powder or wet cake was added after the mixing of the homogenized material and wet the pigment surface. Then the aggregates and agglomerates of the pigment particles are composed of a bead mill, a microfluidizer, or other suitable dispersing manner to that of primary particles. Because the space between the molecules and the dispersion or electrostatic repulsion, native particles become very stable. The resulting pigment slurry was filtered, and by addition of water, a co-solvent (wetting agent), and other ingredients such as antimicrobial agents, chelating dilution. It must be emphasized, used in the first step of the pigment dispersed pigment channel technology influence. Metal soap
Chemical properties of the dye characteristics are affected primarily by impact modifier , and pigment properties are mainly affected by the chemical and physical parameters. Therefore, in addition to explore new dispersants and other optimization dispersion to prepare a pigment physical properties such as particle size distribution, surface charge and polarity, structure, especially the purity of modern inkjet printing technology is to obtain the pigment preparation of the desired key. Final preparation and properties required for the ink such as transparency, color, viscosity, storage stability and the print head without friction and so can be optimized to achieve the effect. Water-based ink is mainly used for office, for inkjet printing is also appealing. 

Special luster pigment in the packaging and printing application

For many users, printing, special gloss paint is a relatively unfamiliar generous concept, but if you talk about pearlescent pigments and pearlescent effect, printing industry could much more familiar, such as Merck series. Traditional "pearlescent pigments" is, semantically very limited, easy to mistakenly believe that the effect of such pigments are like pearls: white, translucent, shiny pastel. In actual fact, even if the series also has a variety of changes, such as the S-Class (10 ~ 100μm) of the pigment particles is relatively thick, soft texture and luster of pearls is completely different. Such as 300 and 500 of the cases of iron oxide pigments, the performance of the pearl has no metallic luster. PVC processing aid
Therefore, this type of layered structure to refraction / interference principle to the performance of products with a gloss "special luster pigments" to describe more accurately or more representative. Currently in the field of domestic packaging, special luster pigment used more and more common, not only in the unique gloss effect, but also because easy to use, flexible and more economic environment. For most high-end consumer goods packaging, such as cigarettes, alcohol, sweets and cosmetics, using this decorative way more reasonable.
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Sheet-fed gravure printing processes customary multiple users use the method of intaglio printing, and the reason is that the pigment particle size is relatively large, and require large ink transfer method to be able to put a certain amount of pigment transferred to the packaging material, so that the printing to achieve the desired gloss. However, co-production of the paper, the traditional gravure high cost of its two main reasons: First, the high cost of the plate cylinder production; Second, large rolls for the paper waste. On the other hand packaging customers and increasing cost pressures, and the packaging styles change rapidly, the short version of the job more and more. Such printing companies will have to use alternative methods, such as sheetfed gravure is an effective solution.

Pigment ink and dye ink and optional performance comparison

I do not know is because the manufacturers of publicity or because pigment ink dye ink expensive than reason, many users in the choice of their precious ink and ink cartridges that they will think that the dye ink pigment ink than good. In fact, pigment ink and dye ink each have their own strengths, and can not say who is better than anyone else, but for users who use the cartridge nozzle, add dye ink is a more appropriate choice. impact modifier
Pigment inks are composed of molecules aggregate than its minimum unit of larger molecular diameter of the dye ink, ranging from 50 to 200 nm, usually in the form of an opaque liquid. Pigment ink right image point, which is powdered ink, of course, this is just kind of image of the statement, and not accurate enough. Be precise to say that it is the solid pigment grind into very small particles, in particular water soluble solvent is called a half solution or a suspension solution, with the nature of our pigment dyeing the same clothes. With dye-based inks penetrate into the media re-formation of color theory exactly the opposite, it is through the color material attached to the medium (such as copy paper or printing paper) to the surface of hair color. Thus, under the influence of the outside of the first etching only damage the molecular structure of the outermost layer, which the structure is not easily destroyed, the outer layer is damaged after molecules, fading and other phenomena will appear. For color printing, due to the outer polymeric pigment ink, it does not make good performance of color and vividness of color, even in the light printing on a flat surface such as paper can not be printed glossy images, which is why general use pigment ink print out the reason things are not shiny. PVC lubricant
Dye ink dye ink is fully dissolved molecular ink, usually 1 to 2 nanometers in diameter, Dan Chun supplies INKOOL leading technology brands of carbon ink is more in diameter and close to zero; This ink was complete complex solution, blocking Garra The probability is very small, easy to be absorbed by the material after printing, and print on paper in smooth, light radiation performance is very good, so the capacity is relatively strong color reproduction, print out the picture colorful, but cost and low cost; However, unlike the dye ink Pigment ink as a protective surface layer of the polymer, so harsh conditions, the molecules easily decomposed, resulting in discoloration.

Solvent-based pigment ink characteristics and their use

In today's new generation of colorful ink, so that people really feel the microelectronic technology has created a true representation of beauty, outdoor advertising people feel huge in progress throughout society: from apes to humans in order to create these as real now a huge screen ah. Can even say that without these, how explain social progress and human evolution? In the multi-level marketing confused intricate patterns analyzed, the rise of the advertising industry, inkjet printers inkjet printer with its strong performance, broad application prospects, as well as in relation to other media more cheaply, more convenient, and efficient production process, etc. advantages, increasingly favored by the advertising industry, is now widely used in posters, light boxes, exhibition stands and other fields. Plastic impact modifier
Printing industry from domestic to imported foreign inkjet printers inkjet printer, but its high price prohibitive for many advertising companies. But with the development of the domestic advertising industry and domestic brand competition, imported brands inkjet printers inkjet printer then gradually lowered prices for the majority of customers to accept. However, commonly used internationally pigment ink (pigment ink, water-based and solvent-divided), while many domestic advertising printing company because of cost considerations are using dye ink (dye ink). With the advertising industry and international standards, and the pursuit of higher quality advertisers advertising works, pigment ink will become the industry trend. PVC lubricant
Physical Performance Comparison: Solvent based pigment ink overcome photochemical activity of the dye, the pigment can be understood as a dye precipitate or similar inert material sand. Its leg color and change is extremely slow, outdoors can be maintained for a long time does not fade. Technological aspects: Dye ink in outdoor light irradiation will quickly fade, only suitable for indoor use, and does not scratch-proof. The use of solvent-based pigment ink, you can have three years without lamination weather force, can save the trouble gluing and coating manufacturing processes, where can achieve short delivery. Investment costs, the use of solvent-based paints do not need film processing machinery and materials, and without special coating printed materials, direct printing, direct use, you can achieve lower costs.
Printing efficiency, combined solvent printer using the new print head, the printer performance greatly improved. Domestic product in the outdoor pigment ink used when printing, and pigment ink suitable indoor and outdoor use, and in line with international trends advertising and printing, and continuous improvement in the product itself, to stimulate domestic enterprises solvent-based pigment ink study.