Georgia-pacific Consumer Products LP

Gpcp IP Holdings LLC

Fort James Corporation

Terry P Witkowski

Brian J Schuh

Richard D Huss

Teresa M Redmann

Hazen Charles Thomas

Henry Chou

Stephanie Keen

David J DiPietro

Andrew C Palm

Robert J Clausing

A method for quantitating the amount of lint shed from a paper towel, the method comprising: preparing a sample of paper towel to be analyzed; depositing lint from the sample onto a substantially lint-free surface by moving the sample thereupon in a specific pattern; collecting the lint deposited on the surface, wherein collecting the lint deposited on the surface comprises, substantially immediately upon depositing lint from the sample onto the surface, washing the deposited lint from the surface into a tared, cleaned, empty vessel; and determining the amount of collected lint.

Method for quantitating retail paper towel lint

A method for quantitating the amount of lint shed from a paper towel including cleaning a rectangular deposition surface having a short dimension and a long dimension, wherein cleaning comprises spraying the entire surface with glass cleaner, using a substantially lint-free squeegee to push the glass cleaner off one of two short sides of the surface, and using a substantially lint-free sponge to wipe the edges of the surface substantially free of lint; preparing a sample of paper towel to be analyzed; depositing lint from the sample onto the cleaned surface by moving the sample thereupon in a specific pattern; collecting the lint deposited on the surface; and determining the amount of collected lint.

A method for quantitating the amount of lint shed from a paper towel by preparing a sample of paper towel to be analyzed, depositing lint from the sample onto a surface, which has been cleaned, by moving the sample thereupon in a specific pattern comprising a plurality of directional changes, collecting the lint deposited on the surface, and determining the amount of collected lint.

Easy starting rolls of perforated tissue product which have a reduced tendency to ply separate are formed with an adhesively secured doubled over tail tab folded against the roll. The strength and location of the bonds are controlled by controlling the penetration of the adhesive into the tissue. The dry tensile strength of the projecting folded over tail tab exceeds 400 g/in and the caliper thereof exceeds one mil. The adhesive bonds are spaced away from lines of perforation joining sheets in the initial sheets of the roll.

Reduced ply separation tail seal

Easy starting rolls of perforated tissue product which have a reduced tendency to ply separate are formed with an adhesively secured doubled over tail tab folded against the roll. The strength and location of the bonds are controlled by controlling the penetration of the adhesive into the tissue. The dry tensile strength of the projecting folded over tail tab exceeds 400 g/in and the caliper thereof exceeds one mil The adhesive bonds are spaced away from lines of perforation joining sheets in the initial sheets of the roll.

Easy starting rolls of perforated tissue product which have a reduced tendency to ply separate are formed with an adhesively secured doubled over tail tab folded against the roll. The strength and location of the bonds are controlled by controlling the penetration of the adhesive into the tissue. The dry tensile strength of the projecting folded over tail tab exceeds 400 g/3&#x2033; and the caliper thereof exceeds one mil The adhesive bonds are spaced away from lines of perforation joining sheets in the initial sheets of the roll.

A method of processing papermaking fiber includes characterizing the initial color of the pulp and the color of the pulp after treatment with a phloroglucinol stain. The color response of the pulp to the stain has been found to be a better indicator of processing needs for secondary pulps in particular and in any event is selective for untreated groundwood as opposed to conventional groundwood identification methods. The color difference is used to target a suitable product for the pulp, to aid in bleaching/deinking strategy or to enable optimization of fiber blending for particular products. In a preferred embodiment the process includes determining changes in CIE L*, a*, b* and brightness values before and after staining of the pulp.

Growing community of inventors

Neenah, WI, United States of America

Terry P Witkowski