Apertured Wiping Cloth

Inactive Publication Date: 2011-05-26
KIMBERLY-CLARK WORLDWIDE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0015]The present invention provides a wiping cloth which has unique surface and tactile properties, and enhanced wiping performance for wiping both wet and dry surfaces

Problems solved by technology

However, the prior art apertured wiping cloths did not have surface projection or had surface projections which are not stable when wetted.
As a result, the surface projections would tend to substantially lose their shape during use.
That is, prior apertured wiping cloths that had so

Method used

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  • Apertured Wiping Cloth
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  • Apertured Wiping Cloth

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0076]In this Example a hydroentangled nonwoven web having a basis weight of about 64 gsm is used as the wiping cloth As a control, a WYPALL X60 wiper available from Kimberly-Clark Global Sales, LLC, having offices in Roswell, Ga. was used. In the control and in each sample, the wiping cloth substrate is a polypropylene spunbond nonwoven web having a basis weight of about 13 gsm which is hydroentangled with pulp fibers. After hydroentangling the wiping cloth substrate has a basis weight around 64 gsm. The actual basis weight of each sample is shown in TABLE 1.

[0077]The apertured samples are apertured in different pin densities and different pin penetration. The hydroentangled substrate is apertured using a pin density of 7 pins per square centimeter, 11 pins per square centimeter or 18 pins per square centimeter. The diameter of the pins for each pin density is different. 7 pins per square centimeter uses pins having a diameter of 3.1 mm, 11 pins per square centimeter uses pins havi...

example 2

[0093]Further testing of the wiping cloths of the present invention was carried out. Samples B-1 and B-2 are the same samples as in Example 1. The cleaning ability of these wiping cloths were compared to three commercially available wiping cloths. The three commercially available wiping cloths are all flat apertured wiping cloths. The bonded carded web (BCW) is a WYPALL Workforce Xtra Food Service Towel, 70 gsm, which is available from Kimberly-Clark Global Sales, LLC, having Offices in Roswell, Ga. The spunlace is Saniwork Deluxe Food Service Towel that has been apertured hydraulically during the hydroentangling process and is available from Hospeco, having offices in Cleveland, Ohio. The wiping cloths are used in wiping test as both dry wiping and wet wiping. In this example, modified gear grease (MGG) and modified engine oil (MEO) are used. Modified gear grease is Sta-Lube Wheel Bearing Grease mixed with 4% carbon black, by weight. The modified engine oil is Valvoline VRL Racing ...

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Abstract

The present invention provides a wiping cloth which has unique surface properties, tactile feel and enhanced wiping performance for wiping both wet and dry surfaces. The wiping cloth has a series of three-dimensional projections which encircles apertures. The wiping cloth is made from a substrate which contains a thermoplastic polymer.

Description

FIELD OF THE INVENTION[0001]The present invention generally relates to an apertured wiping cloth having essentially collapse resistant surface projections.BACKGROUND OF THE INVENTION[0002]Aperturing of nonwovens is generally known in the art. Aperturing has been used in the hygiene business for improving fluid handling in absorbent personal care articles. See for example U.S. Pat. No. 4,886,632 to Van Iten et al. By placing apertures in the nonwoven coversheet, fluid coming into contact with the cover sheet is more easily passed through the cover sheet to the absorbent core.[0003]In the wiping cloth art, apertured wiping cloths are known. See for example U.S. Pat. No. 4,469,734 to Minto, and U.S. Pat. No. 5,429,854 to Currie. Apertured wiping cloths provide some advantages, such as fluid retention and pick-up. However, the prior art apertured wiping cloths did not have surface projection or had surface projections which are not stable when wetted. As a result, the surface projection...

Claims

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Application Information

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IPC IPC(8): A47L25/00
CPCD04H5/03A47L13/16
Inventor MALLORY, MARY FRANCESSIEBERS, BRUCE MICHAELLATIMER, MARGARET GWYN
Owner KIMBERLY-CLARK WORLDWIDE INC
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