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Creping adhesive and products and process incorporating same

Inactive Publication Date: 2005-02-03
MERKER JOSEPH F +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0012] When present in the bonding material, it has been discovered that the composite particles increase the adhesive strength of the adhesive without adversely interfering with the other properties of the adhesive. In fact, the composite particles improve the efficiency of the adhesive, meaning that less adhesive can be used in forming products in accordance with the present invention.

Problems solved by technology

Creping the web greatly disrupts the fibers within the web, thereby increasing the softness, absorbency, and bulk of the web.

Method used

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  • Creping adhesive and products and process incorporating same
  • Creping adhesive and products and process incorporating same

Examples

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Effect test

example

[0072] The following example was performed in order to compare base webs made according to the present invention with base webs that have been used in the past as a wiping product. In particular, base webs treated with a bonding material in accordance with the present invention were compared with base webs treated and creped with conventional bonding materials.

[0073] Specifically, in this sample, a fibrous web was formed according to a process similar to the one illustrated in FIG. 1. The fibrous web was made from pulp fibers, namely softwood fibers and had a basis weight of from about 39 pounds per ream to about 48 pounds per ream.

[0074] After the web was formed, a bonding material was printed on each side of the web and each side was creped similar to the process illustrated in FIG. 2. In one embodiment, representing the control, the bonding material used was a conventional creping adhesive containing a cross-linked ethylene vinyl acetate copolymer. In another embodiment, compos...

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Abstract

The present invention is generally directed to base webs that are creped after a bonding material has been applied to at least one side of the web according to a predetermined pattern. According to the present invention, the bonding material contains a creping adhesive mixed with composite particles. The composite particles generally have a median particle size of less than about 5 microns and a particle size distribution of less than about 10 microns.

Description

RELATED APPLICATIONS [0001] The present application is based upon a provisional application filed on Apr. 7, 1999 and having Ser. No. 60 / 130,410.FIELD OF THE INVENTION [0002] The present invention is generally directed to an improved creping adhesive. More particularly, the present invention is directed to a creping adhesive used in print and crepe operations for producing wipers and other liquid absorbent products. BACKGROUND OF THE INVENTION [0003] Liquid absorbent products such as paper towels, tissue paper, feminine hygiene products, industrial wipers, food service wipers, napkins, medical pads, and other similar products are designed to include several important properties. For example, the products should generally have good bulk, a soft feel and should be highly absorbent. Depending on the application, the products should also have good strength even when wet and should resist tearing. Further, many products should also have good stretch characteristics, should be abrasion re...

Claims

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Application Information

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IPC IPC(8): B31F1/12D04H1/00D04H13/00D21H21/14D21H25/00
CPCB31F1/12D04H1/00D04H1/06Y10T428/24793D21H21/146D21H25/005Y10T428/298D04H13/006D04H1/413D04H1/64D04H1/74Y10T428/249924Y10T428/31964Y10T428/31895
Inventor MERKER, JOSEPH F.ANDERSON, RALPH L.SAFFEL, THOMAS C.CLARK, JAMES W.SMITH, REGINALD
Owner MERKER JOSEPH F
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