公开(公告)号：EP0604824A1

公开(公告)日：1994-07-06

申请号：EP93120166.9

申请日：1993-12-14

Applicant: SCOTT PAPER COMPANY

Inventor： Scattolino, Thomas F. ,  Stern, Howard J. ,  Trumbull, John G. ,  Wolkowicz, Richard I.

IPC: D21F11/00

CPC classification number: D21F11/006

Abstract: A process for making a strong, bulky, absorbent paper sheet with improved uniformity by forming the web on a forming fabric with a furnish having a consistency in the range of from about 0.08% to about 0.6% solids, dewatering the web noncompressibly such that the web is the range of from about 30% to about 40% dry, transferring the web from the forming fabric to an imprinting fabric, lightly pressing the web and the imprinting fabric against the drying can to form a pattern of densifications in the web, can drying the web from no more than about 30% to 40% dry to at least 55% to 60% dry, and restraining the web between the imprinting fabric and the drying can during the can drying step until the web is at least 55% to 60% dry. In addition to the benefits on uniformity, chemicals added to the furnish such as wet strength resins, dry strength resins, surfactants and dyes will migrate during the drying step to the face of the sheet facing the drying can and, specifically, to the densifications formed in the sheet.

Abstract translation: 通过在成形织物上形成具有约0.08％至约0.6％固体浓度范围内的稠度的配料的网状物，通过将纤维网形成网状物而制成具有改善的均匀性的强力，体积大的吸收性纸张的方法，其不可压缩地脱水， 纤维网的范围为约30％至约40％干燥，将幅材从成形织物转移到压印织物，轻轻地将幅材和压印织物压在干燥罐上以形成幅材中的致密图案，罐 将幅材干燥不超过约30％至40％干燥至至少55％至60％干燥，并且在罐干燥步骤期间将幅材限制在压印织物和干燥罐之间，直到幅材为至少55％至 60％干。 除了均匀性的好处之外，添加到配料中的化学品如湿强度树脂，干燥强度树脂，表面活性剂和染料将在干燥步骤期间迁移到面向干燥罐的片材的表面上，特别是形成的致密化 在表中。