| Application in Inks |
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Sinpearls pearl effect pigment has many similarities in the application of printing ink and coating. In pearl ink, main recommended usage of the titanium-mica pearl effect pigment is 8% to 12%.
Sinpearls pearl pigment can be added into ink system solely or mixed with other pigment to form pearl ink. Sinpearls pearl pigment has more than 100 kinds of hue and particle sizes, it can create different luster and metal effects in the ink industries.
Sinpearls pearl effect pigment can be added into various printing systems, such as silk-screen, gravure and flexography, to become pearl ink. When the ink is printed on the different printing stocks, it shows a very strong luster. With Sinpearls `s interference pigment, it can show varying effects beside high luster while with Sinpearls ¡¯s gold and iron metal series, the ink can show colorful metallic luster and shades. To produce the pearl ink, the moderate pearl effect pigment can be mixed with the printing ink. Beside the right hue, the proper particle size is another critical factor when choosing the pigment up to the differences on the printing process, devices and methods. There are many kinds of particle sizes in Sinpearls `s products to meet the requirement. Usually pearl ink can be printed for all kinds of packages, magazines, advertisements, wall papers, labels and plastic membranes and etc... |
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Application field: Suitable in Solvent ,Water-Bronze, UV ink system, Anastatic Printing Ink, Gravure Printing Ink, Flexographic Printing, Screen Printing Ink and so on.
- Paper ink
- Plastic ink
- Pottery ink
- Textile ink
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Instruction
- Due to the particle size of pearl pigment, the products are mainly used in paper coatings, gravure and screen printing, less apply to hectograph.
- Depending on different particle size, the application of gravure and screen printing should be adjusted.
- In order to avoid the final plastic product appearing the fold, the design of the casts mold should be very important.
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Application procedure
The pulverulent pearl pigments should be incorporated by thorough but gentle mixing, since the thin pigment platelets are sensitive to fracture. It is advisable first to prepare a paste of the pearl pigment in a part of the liquid printing ink or in a solvent or diluent which is compatible with the printing ink,and then to stir the paste homogeneously into the rest of the printing ink which in other respects is completely formulated. Simple stirrers are suitable for this step.
Over-mixing, over-kneading or ever over-processing can lead to the fracture of the plate-like flake structure of pearl pigment into smaller light scattering particles, producing a less lustrous appearance in the film. Pearl pigments are destroyed, if it is dispersed like general inorganic pigments. In this case, pearl luster effect is weaker or is not generated. You should avoid overdispersing using a dispersing machine such as sand-mill.
When combining with pearl pigments, the colorants shoud be well dispersed. Poor dispersion of othe colorants sometimes cause pearl pigments to act as beads, which changes dispersion condition of other colorants (grow corpusle). This problem occurs expecially in the applications in paints and inks. Accordingly, you should be very careful of the dispersion of colorants. Insufficient dispersion of other colorants cause the particle size of other colorants to change due to pearl pigment.
Cleaning condition of processing machines is also very important to application. Insufficient cleansing of printing machine woul probably bring out foreign matter of the final product.
Pearl pigment can be used in combination with other colorants in order to hide background color. For a good pearl luster effect, it is a very important factor to combine and /or balance between pearl pigments and other colorants.
It is very important t check background color especially in printing field. Because, in most cases, any other colorants are not
added to pearlized ink.
The achievable pearl luster effect can be increased still further the more smooth and even the surface of the printing stock selected. Therefore, on printing, for example, paper of high quality is always preferable.
Most print systems do not adopt (top) clear layer on pearl luster. The use of (top) clear layer changes the pearl luster effect of final product. |
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