|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||428/174 ; 428/154 ; 428/156 ; 428/166|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 89 인용 특허 : 0|
A combined sheet material including at least two absorbent sheets, such as of cellulose-cotton, each having a density of between from 10 to 40 g/m2. Each of the sheets is separately embossed by calendaring them into a pattern of protuberances distributed in a first pitch along a first direction for each sheet (P1sm, P2sm) and in a second pitch in a second direction for each sheet (P1st, P2st) which subtends the first direction at an angle other than zero. The end of the protuberances extending away from the plane of each of the sheets includes a flat bon...
A combined sheet material comprising at least two absorbent sheets wherein each of said sheets has a basis weight of between from 10 to 40 g/m2, each of said sheets is separately embossed by calendaring such that each of said sheets has a pattern of protuberances formed therein which are distributed in said pattern along a first pitch in a first direction, P1sm and P2sm respectively for said at least two absorbent sheets, and along a second pitch in a second direction, P1st and P2st respectively for said at least two absorbent sheets, said second directi...