COATING METHOD OF LOW VISCOSITY COATING MATERIAL

• Main Authors: MIYANO HIDEKAZU, SATOKAWA YUICHI, KAWASAKI SHINICHIROU, KIMURA TOMOHIRO, SUZUKI AKIRA, HAYASAKA NOBUAKI
• Format: Patent
• Language: English; Japanese
• Published: 04.12.2014
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; PERFORMING OPERATIONS; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a coating method which is a low environmental load coating method and where the strength of coating films on coating objects having coarse surfaces such as a building material, paper, a fiber-reinforced plate, cloth and the like is enhanced.SOLUTION: In a coating method of a low viscosity coating material comprising: a step to coat the surface of a coating object having surface roughness Rz of 0.8 μm or more by injecting the coating material whose viscosity is reduced because carbon dioxide is dissolved; and a step to harden the coated coating material, the coating object is selected from among a building material, paper, a fiber-reinforced plate and cloth and the push-in strength regulated by the calculation method of the surface of the coating object after coating is increased by 40% or more in comparison with the surface of the coating object before coating. 【課題】 低環境負荷塗装法であると共に、建材、紙、繊維強化板、又は布等の表面の粗い被塗装物の塗装膜の強度を強化した塗装方法を提供することを課題とする。【解決手段】 二酸化炭素が溶解し粘度が低下した塗料を噴射することにより表面粗さＲｚが０．８μｍ以上である被塗装物の表面を塗装する工程、及び塗装された塗料を硬化せしめる工程を有する塗装方法であって、被塗装物が、建材、紙、繊維強化板、又は布から選ばれる何れかであり、且つ、下記の算出法において規定する塗装後の被塗装物の表面の押し込み強度が、塗装前の被塗装物の表面の押し込み強度に比べて４０％以上向上したことを特徴とする塗装方法を提供することにより、上記課題を解決する。【選択図】 図１