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Process for producing tissue products

A technology of tissue paper and products, applied in the direction of papermaking, textiles and papermaking, tissue paper/absorbent paper, etc., can solve problems such as adhesion, and achieve the effect of improving hardness

Inactive Publication Date: 2012-06-27
KIMBERLY-CLARK WORLDWIDE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Additionally, in some cases in the past, additive compositions topically applied to tissue webs have often been prone to sticking problems, which refers to the tendency of two adjacent tissue paper sheets to stick together

Method used

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  • Process for producing tissue products
  • Process for producing tissue products
  • Process for producing tissue products

Examples

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Embodiment Construction

[0039] It should be understood by those skilled in the art that the discussion herein is a description of exemplary embodiments only, and is not intended to limit the broader scope of the invention.

[0040] Generally, the present invention involves adding an additive composition to a tissue web to improve the strength of the web. The strength of the paper web can be increased without significantly adversely affecting the perceived softness of the paper web. In fact, softness can be improved during the manufacturing process. The additive composition may comprise a polyolefin dispersion. For example, when applied to or incorporated into a tissue web, the aqueous medium of the polyolefin dispersion may contain polymeric particles of relatively small size, such as less than about 5 microns. However, once dry, the aggregated particles are usually not detectable. For example, in one embodiment, the additive composition may include a film-forming composition that forms a disconti...

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Abstract

Tissue products are disclosed containing an additive composition. The additive composition, for instance, comprises an aqueous dispersion containing an alpha-olefin polymer, an ethylene-carboxylic acid copolymer, or mixtures thereof. The alpha-olefin polymer may comprise an interpolymer of ethylene and octene, while the ethylene-carboxylic acid copolymer may comprise ethylene-acrylic acid copolymer. The additive composition may also contain a dispersing agent, such as a fatty acid. The additive composition may be incorporated into the tissue web as the web is being formed. Alternatively, the additive composition may be topically applied to the web in a post processing operation. For instance, in one embodiment, the additive composition may be applied to the web as a creping adhesive duringa creping operation.

Description

Background of the invention [0001] Absorbent tissue products such as paper towels, facial tissue, toilet paper and other similar products are designed to include several important properties. For example, such products should have good bulk, soft touch and should have high water absorption. Such articles should also have good strength and tear resistance, even when wet. Unfortunately, it is very difficult to produce soft and highly absorbent high strength tissue paper products. Often, when steps are taken to enhance one property of the article, other properties of the article are adversely affected. [0002] For example, softness is generally improved by reducing or reducing the bonding of cellulosic fibers within the tissue product. However, inhibiting or reducing fiber bonding can adversely affect the strength of tissue webs. [0003] In other embodiments, softness is enhanced by topically adding softening agents to the outer surface of the tissue web. Softeners may inc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H21/18
CPCD21H21/18D21H23/24D21H27/002D21H17/35D21H25/04D21H17/37D21H5/2664
Inventor M·A·赫尔曼丝M·J·雷考斯科T·J·戴尔
Owner KIMBERLY-CLARK WORLDWIDE INC
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