| 摘要 |
PROBLEM TO BE SOLVED: To provide a squeegee for printing, not causing scraping failures of solder paste and conductive paste on a metal mask for printing even when there are warp of a print circuit board, deviation of a thickness, and shortage of backup of a print circuit board.SOLUTION: There are included an upper squeegee body formed of a low hardness elastic body, and a tip squeegee integrally bonded by urethane bond on a lower end part of the squeegee body and formed of a high hardness elastic body contacting a metal mask. The upper squeegee body presents a side cross section downward arc shape or a side cross section U-shape where the center part of a lower end surface shape is downward projected and extended along the width direction. The tip squeegee presents a side cross section downward arc shape or a side cross section U-shape where the center part of an upper end surface shape is recessed in a gutter shape and extended along the width direction. The front and rear parts in the direction of movement of the squeegee are upward projected along the width direction so as to enlarge a surface area of the bonding part between the upper squeegee body and the tip squeegee. |
