Ink composition for coated steel sheet
A technology for coating steel plates and compositions, applied in the directions of inks, applications, household appliances, etc., can solve problems such as reduced adhesion, lifting or peeling, etc.
Inactive Publication Date: 2015-02-04
SAKURA COLOR PRODUCTS CORPORATION
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- Summary
- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
However, there has been a problem in the past: when there is a marking layer formed of an ink composition between the upper and lower coating films applied to the surface of the steel sheet, there is a certain relationship between the coating film and the components
Method used
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Effect test
Embodiment 1
[0073] Using the components shown in Table 1 in the amounts shown in Table 1, ink compositions were prepared as described above.
Embodiment 2～13
[0075] Using the components shown in Table 1 and Table 2 in the amounts shown in Table 1 and Table 2, ink compositions were prepared as described above.
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[Problem] To provide an ink composition for a coated steel sheet, whereby, when a marking layer produced from the ink composition is provided between two coating layers (i.e., an upper coating layer and a lower coating layer) each formed from a coating agent and provided on the surface of a steel sheet, it becomes possible to prevent the deterioration of adhesion force of the two coating layers at the marking position and therefore it becomes possible to provide such a marking that the upper coating layer cannot come from the lower coating layer at the marking position or the upper coating layer cannot be delaminated from the lower coating layer at the marking position. (Solution) The present invention provides an ink composition for a coated steel sheet, which comprises an organic solvent, a pigment, a dispersant and a resin, said ink composition being characterized in that the resin comprises an acrylic resin and/or a styrene-acrylic resin each having an acid value of 150 mgKOH/g or less and a glass transition temperature ranging from 0 to 55°C.
Description
technical field [0001] The present invention relates to an ink composition for coating steel plates. Specifically, the present invention relates to an ink composition for coating a steel plate, even if the upper and lower two-layer coating films formed by the coating applied to the steel plate, such as an undercoat coating film and a top coating film, have the ink composition between them. The formed marking layer will not cause the reduction of the adhesion between the two coating films, so the above-mentioned upper coating film will not lift or peel off at the marking position. Background technique [0002] For example, in the manufacture of large-scale structures such as shipbuilding, bridges, pressure vessels, and chemical reagent containers using thick steel plates, material storage, semi-finished product storage, and assembly are mostly carried out outdoors, and the construction period is often long, so there is no prior planning. When any surface treatment is applied...
Claims
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Login to view more IPC IPC(8): C09D11/00
CPCC09D11/106C09D11/037C09D11/00
Inventor 北口贵之
Owner SAKURA COLOR PRODUCTS CORPORATION
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