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Preparation of matt paints and printing inks

A technology for inorganic pigments and coating preparations, applied in the field of matte substrates, coating preparations, and the preparation of the pigment composition, can solve the problems of the degree of extinction and the like, and achieve the effects of easy preparation, easy handling and application, and good extinction performance.

Inactive Publication Date: 2018-12-21
KRONOS INTERNATIONAL INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the degree of matting depends significantly on the input of the dispersing energy due to the partial attenuation of the pigment agglomerates

Method used

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  • Preparation of matt paints and printing inks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1a

[0059] Coarse-grained, non-pigmentary titanium dioxide is sintered in a kiln. The sintered material (220 g) was ground and classified for particle size by sedimentation technique (Atterberg sedimentation). The agglomerates obtained had a particle size d50m of 17 (+ / - 2) μm. The component is post-treated with an aluminum oxide layer. Similar to the white pigment used, the amount of aluminum oxide was used to calculate similar layer thicknesses.

Embodiment 1b

[0061] Embodiment 1b includes the preparation of Example 1a, except that no work-up is carried out.

Embodiment 2

[0063] The standard formulation is based on nitrocellulose supplied in chip form, dissolved in ethanol and ethyl acetate. Other ingredients are plasticizers, and additives to improve the surface and gloss. After the vehicle was prepared and weighed in the pigment composition, the formulation was dispersed in a Skandex disperser using milling beads.

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Abstract

The invention relates to a pigment composition for preparing pigmented matt coatings, such as matt paints and printing inks. Further, the invention relates to a process for preparing such pigment composition, and to a coating formulation containing such composition. Finally, the invention is directed to a pigmented matt surface of a substrate, and to the use of the pigment compositions disclosed herein for matting substrates.

Description

technical field [0001] The present invention relates to pigment compositions for the preparation of pigmented matte coatings such as matte paints and printing inks. Furthermore, the invention relates to a method for preparing the pigment composition, as well as a paint formulation containing the composition. Finally, the invention also relates to the pigmented matte surface of a substrate, and the use of the pigment composition disclosed herein for matte substrates. Background technique [0002] Surface matting is achieved by selectively roughening the surface in microscopic areas. Therefore, incident light is no longer reflected directionally, but diffusely. The height, shape and number of surface structures determine the glossiness of a paint film or printing ink. [0003] Specific matting agents are often added to paint or printing ink compositions to achieve a matte surface. Commonly used matting agents are spherical particles with particle sizes in the range of 1 to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/36C09D7/00C09D7/40C09C3/06C09C3/08C09C3/12C08K3/22C09C1/24C09D7/42C09D7/62
CPCC09C1/3661C09C1/3669C09C1/3684C09C1/3692C09C3/063C09C3/08C09C3/12C09C1/24C01P2004/62C08K2003/2241C08K9/02C08K9/04C08K9/06C08K2201/003C09D7/69C09D7/62C09D7/42C09D7/68C01P2004/53C01P2004/61C09C1/3676C09C1/3653C09C1/3607C09D7/66
Inventor 福克·约根斯法兰克·梅尔许
Owner KRONOS INTERNATIONAL INC
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