Stock material or miscellaneous articles – Structurally defined web or sheet – Continuous and nonuniform or irregular surface on layer or...
Patent
1997-06-24
1999-09-28
Watkins, III, William P.
Stock material or miscellaneous articles
Structurally defined web or sheet
Continuous and nonuniform or irregular surface on layer or...
428154, 428198, 428156, 428913, 428153, B32B 328
Patent
active
059585552
ABSTRACT:
On both the sides of sheet S1 which is a crepe paper processed by crinkling process and has a low expansion ratio due to the spread of crinkles on liquid impregnation or which is a non-crinkle-processed paper with no expansion, is bonded sheet S2 which is processed by crinkling process and has a higher expansion ratio than the expansion ratio of the sheet S1 due to the spread of crinkles on liquid impregnation. The sheet S1 and the sheet S2 are partially bonded together at each of adhesive parts a, . . . , a with an angle to the direction of the extension of the crinkles formed on the sheet S2. The row of the aligned adhesive parts a, . . . , a is arranged and aligned at a given interval and in a manner parallel to each other. When the individual sheets S1 and S2 are impregnated with liquid chemicals, expansions B are formed between the rows A, A of the adhesive parts a, . . . , a, of sheets S2 owing to the difference in expansion ratio between the sheets S1 and S2. Consequently, disposable wiper sheet 1 can be formed to be highly bulky with irregularities formed on the surface thereof due to the expansions B.
REFERENCES:
patent: 3650882 (1972-03-01), Thomas
patent: 3687797 (1972-08-01), Wideman
patent: 4309469 (1982-01-01), Varona
patent: 4469735 (1984-09-01), Trokhan
patent: 5722966 (1998-03-01), Christon et al.
Konishi Takayoshi
Takeuchi Naohito
Uni-Charm Corporation
Watkins III William P.
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