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Soft multi-ply tissue paper having surface deposited strengthening agent

A surface-enhanced, tissue paper technology, applied in the directions of reinforcing agent addition, papermaking, adhesives, etc., can solve the problems of reinforcing multi-sheet products, not significantly increasing dry tensile strength, and not teaching sheet adhesives, etc.

Inactive Publication Date: 2000-08-02
THE PROCTER & GAMBLE COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this document there is no teaching about the use of sheet binders to significantly reinforce multi-ply products, ie the dry tensile strength of the product is not significantly increased, other than a discussion about the tendency of the individual sheets to separate

Method used

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  • Soft multi-ply tissue paper having surface deposited strengthening agent
  • Soft multi-ply tissue paper having surface deposited strengthening agent
  • Soft multi-ply tissue paper having surface deposited strengthening agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0180] This example illustrates the use of a direct offset rotogravure press to prepare a two-ply bath tissue with a strengthening agent on the inner surface of one ply.

[0181] The reagent used to prepare the fluidization enhancer was a 45% solids acrylic latex (Rhoplex NW-2744F emulsion) obtained from Rohm & Hass, Philadelphia, Pennsylvania.

[0182] A fluidization enhancer was prepared by mixing 50% acrylic latex with 50% tap water to give a latex with a solids content of 23%. The fluidizing agent is then loaded into the gravure groove so that the fluidizing agent fills the recessed areas of the rotogravure cylinder.

[0183] The surface of the gravure cylinder is coated with alumina ceramics, and the concave area is carved in the alumina ceramics by laser technology. The recesses are hemispherical, each with a diameter of 55μ and a depth of about 228μ. The pattern of recessed areas was hexagonal with an occurrence rate of 350 per linear inch, resulting in approximately ...

Embodiment 2

[0192] This example illustrates the use of a direct offset rotogravure press to prepare a two-ply bath tissue with reinforcing agent on the inner surfaces of both plies.

[0193] The reagent used to prepare the fluidization enhancer was a 44% solids acrylic latex (Rhoplex NW-1845 emulsion) obtained from Rohm & Hass, Philadelphia, Pennsylvania.

[0194] A fluidization enhancer was prepared by mixing 50% acrylic latex with 50% tap water to give a latex with a solids content of 22%. The fluidization enhancer is then charged into the gravure groove so that the fluidization enhancer fills the recessed areas of the rotogravure cylinder.

[0195] The surface of the gravure cylinder is coated with alumina ceramics, and the concave area is carved in the alumina ceramics by laser technology. The recesses are hemispherical, each with a diameter of 55μ and a depth of about 228μ. The pattern of recessed areas was hexagonal with an occurrence rate of 350 per linear inch, resulting in 140,...

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Abstract

Strong and soft multi-ply tissue paper products useful as absorbent sanitary products such as bath tissue, facial tissue, and absorbent towels are disclosed. At least one internal surface of the tissue paper product has a surface deposited strengthening agent.

Description

technical field [0001] In general, the present invention relates to tissue paper products. More particularly, the present invention relates to tissue paper products having a strengthening agent coated on their surface. Background of the invention [0002] Hygienic tissue paper products are widely used. These products are supplied in the market in various sizes for various applications such as facial tissue, toilet tissue and absorbent paper toweling. [0003] A common requirement for all these hygiene products is a combination of strength and softness. Softness is a comprehensive tactile sensation produced by a paper product when it rubs against the skin. The purpose of the softness is that these products can be used to clean the skin without causing irritation. [0004] One of ordinary skill in the art recognizes that one of the most important physical properties related to softness is product strength. Strength is the ability of a product and ...

Claims

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Application Information

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IPC IPC(8): A47K7/00B32B29/06D21H21/18D21H27/32
CPCB32B29/06D21H21/18D21H27/32D21H1/04B32B29/005B32B2555/00B32B2255/12
Inventor 肯尼斯·D·文森乔纳森·A·菲克霍华德·T·迪森
Owner THE PROCTER & GAMBLE COMPANY
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