| 摘要 |
AFTER LAMINATING TOGETHER THE FIRST SHEETS (S1) CREPE-PROCESSED AT A HIGH CREPE RATIO AND THE SECOND SHEET (S2) CREPE-PROCESSED AT A CREPE RATIO LOWER THAN THAT OF THE FIRST SHEET (S1) OR NOT CREPE-PROCESSED, THE SHEETS ARE BONDED TOGETHER AT BONDING PARTS (A) AT A GIVEN PITCH (P) IN ROWS. WHEN THE RESULTING BONDED SHEETS (S1, S2) ARE IMPREGNATED WITH A LIQUID, EXPANSIONS ARE GENERATED BETWEEN THE ROWS OF BONDING PARTS (A) DUE TO THE DIFFERENCE IN RATIOS OF THE ELONGATION OF THE TWO SHEETS. THE EXPANSIONS TAKE ON THE SHAPE OF LARGE WRINKLE (B) ACCORDING TO THE PITCH (P) OF THE BONDING PARTS (A). AT THE PRODUCTION PROCESS OF THE SHEET, THE SHEET IS CREPE-PROCESSED CONTAINING WATER AT A PRESET RATIO, WHEREBY SMALL WRINKLES (B1) AS RESIDUAL CREPE WRINKLES ARE FORMED ON THE SHEET SURFACE. THE LARGE WRINKLES (B) AND THE SMALL WRINKLES (B1) CAN ENHANCE THE WIPING EFFECT. |
