초록 ▼

A process of making a liquid absorbing laminated structure comprising long lengths of absorptive tissues and an intermediate layer of absorptive particles is performed while the tissues are traveling in the direction of their lengths. A film of moistening liquid is transferred to a surface of a firs

A process of making a liquid absorbing laminated structure comprising long lengths of absorptive tissues and an intermediate layer of absorptive particles is performed while the tissues are traveling in the direction of their lengths. A film of moistening liquid is transferred to a surface of a first tissue which is then supported in substantially horizontal position and showered with dry absorbent particles, which are rendered adhesive by absorption of the moistening liquid. A second tissue is superposed and the assembly is bonded together by passing it through the nip between a heated roller having a surface temperature of at least 110°C. and a pressure roller. These rollers are pressed together at the nip by a pressure of at least 350 pounds per square inch and each has a surface hardness in excess of 90 Shore A Durometer.

대표청구항 ▼

A process of making a liquid absorbing laminated structure comprising long lengths of absorptive tissues and an intermediate layer of absorptive particles while said tissues are traveling in the direction of their lengths which comprises the steps of: a. applying a moistening liquid substantially un

A process of making a liquid absorbing laminated structure comprising long lengths of absorptive tissues and an intermediate layer of absorptive particles while said tissues are traveling in the direction of their lengths which comprises the steps of: a. applying a moistening liquid substantially uniformly to a first of said tissues by transferring a film of moistening liquid to a surface of said tissue; b. showering said surface of said first tissue while substantially horizontally supported with dry absorbent particles to form a layer of said particles thereon, said absorptive particles being of a nature and quantity to be rendered adhesive by absorption of the moistening liquid applied in step a; c. superposing a second of said tissues on said first tissue and particle layer thereon; and d. bonding together the tissue particle assembly by passing it through the nip between a heated roller having a surface temperature of at least 110°C. and a pressure roller, said rollers pressed together at the nip by a pressure of at least 350 pounds per square inch and each having a surface hardness in excess of 90 Shore A Durometer.