IP Library Granted Patent US 7,252,741
Granted Patent B2
US 7,252,741 · App. 11/260,660 · Granted Aug 7, 2007

Method of making a paper web containing refined long fiber using a charge controlled headbox and a single ply towel made by the process

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Quick Facts
Patent No.
US 7,252,741
App. No.
11/260,660
Granted
Aug 7, 2007
Kind
B2
Abstract

A method of forming a cellulosic web is discussed, the product of which may, for example, possess at least one of increased softness, strength, and absorbency. The method measures the total anionic charge and controls the net charge of an aqueous stream.

Claims (16)

1. A method of forming a cellulosic web comprising:

(a) supplying to a headbox an aqueous stream comprising a major proportion of refined long fiber;

(b) supplying to the aqueous stream a cationic wet strength agent and an anionic strength agent;

(c) measuring the total anionic charge carried by the aqueous stream;

(d) controlling the amount of the cationic wet strength agent and the anionic strength agent so that the net charge of the aqueous stream is maintained in the range of from less than about 0 to about −115 meq×10 −6 per 10 ml;

(e) depositing the aqueous stream on a first moving foraminous support to form a web;

(f) transferring the web to a second moving foraminous support;

(f) compressively dewatering the web;

(g) transferring the web to a Yankee cylinder to dry the web to a consistency of at most about 98%;

(i) creping the web from the Yankee cylinder.

2. The method of claim 1 , wherein the cationic wet strength agent and the anionic strength agent are controlled so that the net charge of the aqueous stream is maintained in the range from less than about 0 to about −50 meq×10 −6 per 10 ml.

3. The method of claim 1 , wherein the speed of said second moving foraminous support is at least about 2% less than the speed of the first moving foraminous support, thereby imparting a fabric crepe to said web of at least about 2%.

4. The method of claim 1 , wherein the Yankee cylinder is internally heated.

5. The method of claim 1 , wherein said creping imparts a reel crepe to said web of at least about 2%.

6. The method of claim 5 , further comprising:

embossing said web to a sufficient degree to reduce its tensile modulus of stiffness by at least about 10%.

Assignments (2)
RELEASE OF SECURITY AGREEMENT Recorded May 16, 2013
From: CITICORP NORTH AMERICA, INC.
To: GEORGIA-PACIFIC LLC, DELAWARE LIMITED PARTNERSHIP; GEORGIA-PACIFIC CONSUMER PRODUCTS LP, DELAWARE LIMITED LIABILITY COMPANY; GEORGIA-PACIFIC CORRUGATED LLC, DELAWARE LIMITED LIABILITY COMPANY; DIXIE CONSUMER PRODUCTS LLC, DELAWARE LIMITED LIABILITY COMPANY; GEORGIA-PACIFIC GYPSUM LLC, DELAWARE LIMITED LIABILITY COMPANY; GEORGIA-PACIFIC CHEMICALS LLC, DELAWARE LIMITED LIABILITY COMPANY; GEORGIA-PACIFIC WOOD PRODUCTS LLC, DELAWARE LIMITED LIABILITY COMPANY; COLOR-BOX LLC, DELAWARE LIMITED LIABILITY COMPANY; GP CELLULOSE GMBH, ZUG, SWITZERLAND LIMITED LIABILITY COMPANY
Reel/Frame 030669/0958 →
SECURITY AGREEMENT Recorded Feb 23, 2006
From: ASHLEY, DREW & NORTHERN RAILWAY COMPANY; BROWN BOARD HOLDING, INC.; CP&P, INC.; COLOR-BOX, LLC; FORT JAMES CORPORATION; FORT JAMES MAINE, INC.; FORT JAMES OPERATING COMPANY; FORT JAMES GREEN BAY L.L.C.; PRIM COMPANY L.L.C.; KMHC, INCORPORATED; GEORGIA-PACIFIC FOREIGN HOLDINGS, INC.; GEORGIA-PACIFIC RESINS, INC.; GEORGIA-PACIFIC WEST, INC.; GEORGIA-PACIFIC FINANCE, LLC; GREAT NORTHERN NEKOOSA CORPORATION; LEAF RIVER FOREST PRODUCTS, INC.; NEKOOSA PACKAGING CORPORATION; MILLENNIUM PACKAGING SOLUTIONS, LLC; SOUTHWEST MILLWORK AND SPECIALTIES, INC.; WEST GEORGIA MANUFACTURING COMPANY; BLUE RAPIDS RAILWAY COMPANY; BRUNSWICK PULP LAND COMPANY, INC.; CECORR, INC.; ENCADRIA STAFFING SOLUTIONS, INC.; FORT JAMES INTERNATIONAL HOLDINGS, LTD.; GEORGIA-PACIFIC INVESTMENT, INC.; FORT JAMES CAMAS L.L.C.; FORT JAMES NORTHWEST L.L.C.; G-P GYPSUM CORPORATION; GEORGIA-PACIFIC CHILDCARE CENTER, LLC; GEORGIA-PACIFIC HOLDINGS, INC.; G-P OREGON, INC.; GEORGIA-PACIFIC ASIA, INC.; GLOSTER SOUTHERN RAILROAD COMPANY; GREAT SOUTHERN PAPER COMPANY; OLD PINE BELT RAILROAD COMPANY; NEKOOSA PAPERS INC.; TOMAHAWK LAND COMPANY; XRS, INC.; PHOENIX ATHLETIC CLUB, INC.; KOCH RENEWABLE RESOURCES, LLC; KOCH FOREST PRODUCTS HOLDING, LLC; KOCH WORLDWIDE INVESTMENTS, INC.; OLD AUGUSTA RAILROAD, LLC; BRUNSWICK CELLULOSE, INC.; LEAF RIVER CELLULOSE, LLC; KOCH CELLULOSE AMERICA MARKETING, LLC; KOCH CELLULOSE, LLC; BLUEYELLOW, LLC
To: CITICORP NORTH AMERICA, INC.
Reel/Frame 017626/0205 →