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Tissue product with silk fibers and method of making the same

a technology of tissue products and silk fibers, applied in the field of tissue products and the making of tissue products, can solve the problems of irritating, redness or damage to the skin, limited use of silk fibers in industrial paper making processes, and fibers are relatively expensive raw materials (several times more expensive)

Inactive Publication Date: 2006-05-25
THE PROCTER & GAMBLE COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some cases, the contact can lead to irritation, redness or damage to the skin, especially upon repeated use.
The use of silk fibers in industrial paper making processes has been limited by at least two aspects.
The silk fibers are relatively expensive raw materials (several times more expensive than conventional cellulosic pulp) and second the use of silk fibers in paper making processes can modify the fine balance of strength, absorbency and softness that is well controlled in industrial paper making processes.
As such, silk fibers have not been used in tissue paper produced in large scale, such as for toilet paper, wipes, paper towels, facial tissue and paper handkerchiefs.

Method used

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  • Tissue product with silk fibers and method of making the same
  • Tissue product with silk fibers and method of making the same
  • Tissue product with silk fibers and method of making the same

Examples

Experimental program
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Effect test

example 1

[0052] Silk fibers (Tussah silk cut from SEAL International Limited, Ladywell Mills, Hall Lane, Bradford, West Yorkshire, BD4 7DF, England; Silk cut) are first colored with a blue colorant (“Marabu-SilkArt azure” from Marabuwerke GmbH & Co. KG, Asperger StraBe 4, 71732 Tamm, Germany). The silk fibers are then added at a level of 0.1% (w / w) of the total amount of fibers used, into the mixing vessel for the preparation of the papermaking slurry. The hybrid slurry (cellulose fibers+silk fibers) is then used in a usual papermaking process (for example as described in U.S. Pat. No. 3,301,746 by Sanford et al, EP0536320B1 by Trokhan et al, and U.S. Pat. No. 4,529,480 by Trokhan et al.). The web of tissue paper is then converted into a roll of toilet paper by conventional industrial processes. Pieces of issue papers are then evaluated for the visibility of the silk fibers on the tissue paper and for physical properties.

example 2

[0053] The same silk fibers as described in Example 1 are used at a level of 0.01%, 0.05%, 0.1%, 0.5%, 1%, 2% and 5% (w / w) of the total amount of fibers, to form fiber mixes. The fiber mixes comprises cellulosic fibers and silk fibers. In additional assays, synthetic fibers (polypropylene) are also added to the fiber mixes, at a level of 1%, 5%, 10%, and 20% (w / w) of the total amount of fibers. The cellulosic fibers are usual cellulosic fibers commonly used for paper-making. The fiber mixes are used as a base to form hand-sheets of tissue paper as described in TAPPI method T-205 (TAPPI, Technical Association of the Pulp and Paper Industry, published method T 205 sp-95, approved by the Pulp Committee of the Process Quality Division TAPPI, ISBN 0-89852-334-6). The sheets of tissue paper are then evaluated for the visibility of the silk fibers on the tissue paper and for physical properties.

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Abstract

A tissue product comprising a plurality of first fibers and a plurality of silk fibers and a method of making the tissue product wherein the silk fibers are a different color than the color of the first fibers, as assessed by the human naked eye.

Description

FIELD OF THE INVENTION [0001] This invention relates to the field of paper and paper making. In particular the present invention applies to tissue products and the making of tissue products including silk fibers. BACKGROUND OF THE INVENTION [0002] Paper products, and particularly tissue products, are widely used by consumers for uses that include contact with the skin. For example, toilet papers, paper handkerchiefs, paper towels, facial tissue and wet wipes are all intended to help remove liquid or solid residues from the human skin. Their conditions of use usually induce an intimate contact between the article and the human skin. Such contact can vary in duration, intensity of the forces applied, and relative movements. In some cases, the contact can lead to irritation, redness or damage to the skin, especially upon repeated use. [0003] Therefore, it is generally desired that the paper products be soft and / or smooth. Other desired properties include the strength of the tissue in a...

Claims

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Application Information

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IPC IPC(8): D21H13/34
CPCD21H13/34D21H21/28D21H27/30
Inventor BOGDANSKI, SABINEMARTIN, SIEGFRIED KURTHUEGEL, JUERGEN
Owner THE PROCTER & GAMBLE COMPANY
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