JP2015183357A - Paint material surface finishing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paint material surface finishing method capable of generating scattered marble-like glossiness with sedate and high-class appearance.SOLUTION: The paint material surface finishing method includes the steps of: preparing a mortar-like paint material of 100 pts.wt., which contains 40-80 wt.% of mixture of calcium carbonate and either hydrated lime, calcium carbonate or hydrated lime, 3-10 wt.% of synthetic resin emulsion and 3-5 pts.wt. of a transparent metal gloss pigment being uniformly mixed; applying the paint material of 0.5-0.7 kg/mover a base; after drying the same, further applying the paint material of 0.6-1.0 kg/m; and after drying the same, rubbing while pressing the surface of the paint material with an edge of a steel trowel to generate glossiness and luminosity point on the paint material surface.

Description

  The present invention relates to a coating material surface finishing method that imparts glitter to a stucco-like coating material and exhibits high designability.

  Conventionally, it is a coating composition containing slaked lime, a polymer component and water as a plaster coating material, and (1) the state of the coating liquid or its dried coating film in a container, (2) painting workability, ( 3) Low temperature stability, (4) Appearance of coating film, (5) Alkali resistance, (6) Washing resistance, (7) Concealment rate is the property of at least two kinds of paints specified in JIS K5663-1995. A coating composition that satisfies the requirements and a coated product obtained by applying the coating composition have been proposed (Patent Document 1).

  Moreover, as a polished plaster-like wall material composition that gives a polished plaster-like wall material that has a texture that is almost inferior to polished plaster, is excellent in strength, etc., and is difficult to generate cracks, etc., for 100 parts by weight of slaked lime , 30 to 70 parts by weight of silica sand, 3 to 10 parts by weight of synthetic resin emulsion or powder resin, 0.5 to 6 parts by weight of soil, 0.5 to 5 parts by weight of clay component, 0.5 to 5 parts by weight of dispersant, cellulose A polished plaster-like wall material composition characterized by containing 0.2 to 3 parts by weight of a system thickener and 0.1 to 2 parts by weight of an antifoaming agent has been proposed (Patent Document 2).

  Further, as a method for forming a coating pattern, a coating composition containing calcium carbonate and a binder resin, kneaded with water, and preferably having a particle diameter corresponding to 90% of the cumulative amount of calcium carbonate in the range of 3 to 20 μm. A step of applying an object to a part or all of a surface to be coated one or more times, a step of drying the surface of the applied coating composition, and a step of applying a trowel to the surface of the applied coating composition , And a method for displaying a desired paint pattern such as a shade pattern in a simple, safe and low cost has been proposed (Patent Document 3).

JP 2001-187867 A JP 2001-192255 A JP 2004-211035 A

  However, these coating compositions, and coatings and polished plaster-like wall material compositions and coating pattern forming methods obtained by applying the coating compositions are somewhat close to conventional finishes. There is a problem that it is not too flashy and does not correspond to a high-class design required for stores and the like.

  The problem to be solved by the present invention is to provide a coating material surface finishing method that has a marble-like luster, has brilliancy in a dotted shape, and is high-quality without being too flashy.

The invention according to claim 1 contains 40-80% by weight of either slaked lime or calcium carbonate or a mixture of slaked lime and calcium carbonate, and the synthetic resin emulsion is 10% by weight or less and 3% by weight or more as a resin component. A coating material in which 100 parts by weight of the coating material and 3 to 5 parts by weight of a transparent metallic luster pigment are uniformly mixed is applied to the base at 0.5 to 0.7 kg / m ² , dried, and further 0.6 to Provided is a coating material surface finishing method characterized by applying 1.0 kg / m ² and drying and rubbing the surface of the coating material with an edge of a metallic wrinkle to give gloss and a bright spot to the coating material surface.

  The invention described in claim 2 is characterized in that the transparent metallic luster pigment is a flake pigment in which a glass piece is used as a core material and the surface of the core material is coated with a metal oxide. Provide a surface finish method for coating materials.

  The invention according to claim 3 provides the coating material surface finishing method according to claim 1 or 2, wherein the transparent metallic luster pigment has an average particle diameter of 20 to 200 μm.

  The coating material surface finishing method of the present invention includes an appropriate amount of a transparent metallic luster pigment, and after applying a predetermined amount to a base, further applying a predetermined amount, and further pressing the surface of the coating material with a metal flaw, There is an effect that it is possible to impart gloss to the surface as well as a bright spot. For this reason, there is an effect that the surface of the coating material has high-quality feeling without being too flashy, having glossiness in the form of dots while having a marble-like luster.

It is a drawing substitute photograph of the coating material surface created by the coating material surface finishing method of the present invention. It is a drawing substitute photograph of the coating material surface which has not performed the process of rubbing and pressing down the coating material surface with the edge of a metal iron among the coating material surface finishing methods of this invention.

  Hereinafter, the form for implementing the coating material surface finishing method of this invention is demonstrated.

  The coating material used in the present invention is a coating material in which 100 parts by weight of a stucco coating material and 3 to 5 parts by weight of a transparent metallic luster pigment are uniformly mixed, but the plaster coating material is made of slaked lime or calcium carbonate. One or a mixture of slaked lime and calcium carbonate is contained in an amount of 40 to 80% by weight, and the synthetic resin emulsion is 10% by weight or less and 3% by weight or more as a resin component. The synthetic resin emulsion is blended to impart water resistance to the dried coating film and to prevent cracking due to drying. If the resin component is less than 3% by weight, the water resistance of the coating film after drying becomes insufficient, and cracks occur during drying. If the resin component exceeds 10% by weight, the water vapor permeability of the coating film after drying may be insufficient. In this case, the adhesiveness becomes insufficient due to the moisture of the base, and in some cases swelling occurs.

  In addition, the stucco-like coating material is blended as a filler, and either slaked lime or calcium carbonate or a mixture of slaked lime and calcium carbonate is blended in an amount of 40 to 80% by weight in order to improve designability and application workability, and as a colorant, 3 to 6% by weight of pigment is blended. In addition, a dispersing agent, a thickener, an antifoaming agent, etc. are mix | blended 2 to 4 weight%.

  As the synthetic resin emulsion blended in the plaster coating material, an acrylic resin emulsion, an ethylene vinyl acetate resin emulsion, a urethane resin emulsion, an acrylic silicone resin emulsion, a silicone resin emulsion, or the like can be used.

  Examples of commercially available plaster coating materials that can be applied to the present invention include Jolipat Italian II JP-70, JP-65, JM-65 (trade name, manufactured by Aika Kogyo Co., Ltd.), Fiorentino (trade name, Fukko Co., Ltd.) And Venechi Art (trade name, manufactured by Stucco Co., Ltd.).

  As the transparent metallic luster pigment used in the present invention, synthetic mica, glass, alumina as a core substance, and the surface thereof coated with a metal oxide such as titanium, zirconium, chromium, vanadium, iron can be used. In particular, a flake pigment in which the surface of a glass piece is coated with silicon dioxide and further coated with titanium dioxide is preferable in terms of expressing glitter. If the core material is natural mica, for example, the glitter is insufficient.

  In addition, if the transparent metallic luster pigment is a two-layer coating type flaky pigment in which the surface of the glass piece is coated with silicon dioxide and further coated with titanium dioxide, silicon dioxide has a higher hardness than glass. The thickness of the glass piece can be reduced. If the thickness of the glass piece is thin, the light transmittance becomes higher. As a result, especially by blending with the plaster-like coating material of the present invention, the gloss of the entire surface of the coating film, which is manifested by rubbing the surface of the coating material with the edge of the metallic wrinkles, has a stronger contrast, and is brilliant. Becomes sharper. This effect is an effect discovered for the first time by the present inventors.

  The average particle size of the transparent metallic luster pigment is preferably 20 to 200 μm. If the average particle size is less than 20 μm, the glossiness becomes inconspicuous. , The design property becomes insufficient. The average particle diameter here means a particle diameter at which the cumulative weight is 50%.

  Commercial products of such transparent metallic luster pigments include Miraval 5411 Magic White, 5420 Magic Gold, 5422 Magic Red, 5424 Magic Blue (trade name, manufactured by Merck & Co., Inc.).

  As the coating material used in the present invention, a plaster-tone coating material and a transparent metallic luster pigment are used in which 3 to 5 parts by weight of a transparent metallic luster pigment are uniformly mixed with 100 parts by weight of the plaster-tone coating material. However, if the transparent metallic luster pigment is less than 3% by weight, the glitter is insufficient, and if it exceeds 5 parts by weight, the coating workability is poor.

Moreover, the coating material used for this invention apply | coats 0.5-0.7 kg / m < ² > with a metal hammer etc. first as undercoat. If it is less than 0.5 kg / m ² , the hiding power of the base becomes insufficient, and if it exceeds 0.7 kg / m ² , unevenness occurs and the smoothness becomes insufficient.

After the undercoat has dried, 0.6 to 1.0 kg / m ^{2 is} applied as the top coat and dried. When the coating amount is less than 0.6 kg / m ² , the mixed transparent metallic luster pigment is in a state where it easily falls off, and when it exceeds 1.0 kg / m ² , unevenness is generated and the smoothness becomes insufficient.

  After the top coat is dried, the edge of the metal ridge is raised and the surface of the coating material is rubbed and pressed with the edge. As a result, gloss and bright spots appear on the surface of the coating material.

  Hereinafter, it demonstrates concretely in an Example and a comparative example.

Preparation of coating material surfaces of examples and comparative examples
As an example, a gypsum board (12 mm thick, JISA6901 equivalent) and Jolipat Sealer JS-300 (manufactured by Aika Kogyo Co., Ltd., acrylic resin emulsion, acrylic resin solid content 70%, primer, trade name) 150 g / m ² after brushing and drying, Jollipat Italian II JP-70C72 (trade name, manufactured by Aika Kogyo Co., Ltd., white plaster coating material, white, calcium carbonate 25% by weight, slaked lime 35% by weight, ethylene vinyl acetate resin emulsion 5 The coating material in which 3.8 parts by weight of Miraval 5411 Magic White (average particle size 20 to 200 μm, trade name, manufactured by Merck & Co., Ltd.) is uniformly mixed with 100 parts by weight of 0.6 kg / m ^{2 is} applied as an undercoat. After drying, the same coating material was further applied at 0.8 kg / m ² . After drying, the surface of the coating material prepared by rubbing the surface of the coating material with the edge of a hammer was used as the coating material surface of the example.

  As a comparative example, the same procedure as in the above example was applied until the coating material was applied and dried, and the coating material surface that was not subjected to the step of rubbing the coating material surface with the edge of a hammer was used as the coating material surface of the comparative example.

Evaluation of coating material surface The coating material surface was magnified 100 times with a microscope VH-Z20UR / W (trade name, manufactured by Keyence Corporation), and the presence or absence of glossiness and glossiness of the coating material surface was visually determined. The coating material surface of the example is shown in FIG. 1, and the coating material surface of the comparative example is shown in FIG.

Evaluation results The coating material surface of the example is clear and glossy as a whole, and the transparent metallic luster pigment is clearly visible and the bright point is clear, whereas the coating material of the comparative example The surface of the coating material was dull and dull, and the transparent metallic luster pigment that should have been blended could not be seen.

Claims (3)

100 parts by weight of a plaster coating material containing 40 to 80% by weight of either slaked lime or calcium carbonate or a mixture of slaked lime and calcium carbonate, and the synthetic resin emulsion is 10% by weight or less and 3% by weight or more as a resin component, and transparency A coating material in which 3 to 5 parts by weight of a metallic luster pigment is uniformly mixed is applied to the base at 0.5 to 0.7 kg / m ² , dried, and further applied at 0.6 to 1.0 kg / m ^2. A method for finishing a coating material surface, which comprises applying a gloss and a bright spot to the coating material surface by rubbing the coating material surface with an edge of a metallic wrinkle after drying.   2. The coating material surface finishing method according to claim 1, wherein the transparent metallic luster pigment is a flaky pigment having a glass piece as a core material and the surface of the core material coated with a metal oxide.   3. The coating material surface finishing method according to claim 1, wherein the transparent metallic luster pigment has an average particle diameter of 20 to 200 [mu] m.