EP1135086A1 - Method of use of a disposable nonwoven substrate - Google Patents

Method of use of a disposable nonwoven substrate

Info

Publication number
EP1135086A1
EP1135086A1 EP99960623A EP99960623A EP1135086A1 EP 1135086 A1 EP1135086 A1 EP 1135086A1 EP 99960623 A EP99960623 A EP 99960623A EP 99960623 A EP99960623 A EP 99960623A EP 1135086 A1 EP1135086 A1 EP 1135086A1
Authority
EP
European Patent Office
Prior art keywords
substrate
collecting
nasal region
disposable
preparation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP99960623A
Other languages
German (de)
French (fr)
Inventor
Marianne Malmbak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Procter and Gamble Co
Original Assignee
Procter and Gamble Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Procter and Gamble Co filed Critical Procter and Gamble Co
Priority to EP99960623A priority Critical patent/EP1135086A1/en
Publication of EP1135086A1 publication Critical patent/EP1135086A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/16—Paper towels; Toilet paper; Holders therefor
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H13/00—Other non-woven fabrics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet

Definitions

  • the present application relates to a method of use of a disposable nonwoven substrate.
  • Disposable facial tissues intended for the purpose of blowing the nose have been sold for over one hundred years.
  • the process used to manufacture disposable paper tissues is most commonly a wet laying process.
  • cellulosic fibres are slurried in an aqueous medium to a concentration of less than 1 % by weight of solids.
  • the slurry is the laid on a foraminous surface in order to provide a substantially planar web of fibres from which almost all of the water is removed.
  • the removal of such high quantities of water is an expensive and energy-intensive process.
  • the present invention provides a disposable facial tissue suitable for the purpose of blowing the nose which is made a cheaper and less energy intensive process.
  • the disposable facial tissue should be strong, soft and absorbent.
  • Facial pads for example pads for the removal of make-up, are known to be made by the hydroentangling process.
  • Demak'UpTM is a commercially available brand of make-up removal pads, sold in several European countries by The Procter and Gamble Company. Such pads, however, are thick and bulky and are unsuitable for the purpose of blowing the nose.
  • the object of the invention is achieved by the use of a fluid entangled substrate, preferably a hydroentangled substrate, for the preparation of a tissue suitable for collecting and removing mucus from the nasal region.
  • the substrate has a basis weight of from about 20 to about 100 g/m 2 , and preferably has a caliper of less than about 0.5 mm and/or a surface area of at least about 10 000 mm 2 .
  • Caliper is the thickness of the substrate when subjected to a compressive load of 15.5 g/m 2 .
  • the disposable paper tissue made by the present invention may be either single-ply or multi-ply.
  • the tissue is a multi-ply product, comprising at least two juxtaposed layers of the substrate, or one layer of the substrate juxtaposed with another separately formed substrate.
  • Chemical binders are not required, although some chemical additives may optionally be used to provide, for example, enhanced wet strength and/or enhanced softness.
  • Particularly suitable wet strength agents are polyamide- epihydrochlorin resins including those sold as KymeneTM 557H by Hercules, Inc, of Wilmington, Delaware.
  • the process for the formation of the substrate is fluid entanglement, preferably hydroentanglement. Further information pertaining to the hydroentangling process can be found in US-A-2 862 251 which relates to hydroentanglement methods for production of nonwoven products; US-A-3 025
  • US-A-3 485 706 discloses a nonwoven fabric having a pattern of apertures produced by a hydroentanglemt process
  • US-A-5 320 900 discloses a spun-laced fabric consisting essentially of polyester fiber and cellulose fibre
  • EP-A-0 418 493 which relates to a nonwoven fabric which is produced using a perforated drum as a aperturing member.
  • Hydroentangling equipment suitable for use in making the substrate is obtainable from ICBT Perfojet, S.A., 38330 Mount Bonnot, France. Hydroentangling equipment is disclosed in EP-A-0 776 361 , published on 4 th June 1997.
  • hydroentangled webs have been described for various purposes.
  • apertured webs are useful as component sheets in diapers and other absorbent articles.
  • US-A-3 620 903 discloses nonwoven fabrics, suitable for use as wearing apparel, which are made by fluid entanglement. In particular these nonwoven fabrics are used for medical gowns and drapes, and for wound dressings.
  • a suitable method of providing the fluid entangled substrate for use in the present invention is a hydroentanglement process wherein a layer of fibres such as a nonwoven batt or other initial fibrous layer is formed on a foraminous member.
  • the initial layer may consist of any web, mat, or batt of loose fibers, disposed in random relationship with one another or in any degree of alignment, such as might be produced by carding and the like.
  • the fibres can be any natural, cellulosic, and/or wholly synthetic material.
  • the initial layer can be made by any desired technique, such as by carding, random laydown, air or slurry deposition and the like. It may consist of blends of fibres of different types and/or sizes.
  • the initial layer may be an assembly of loose fibre webs, such as for example cross-lapped carded webs.
  • the fluid streams impinging upon the fibrous layers can be formed at high pressure and present a high energy flux.
  • water or another suitable liquid or fluid is forced under high pressure through small diameter orifices so as to emerge continuously or intermittently in the form of fine, essentially columnar, high- energy flux streams.
  • the web or other fibrous layer is placed on the foraminous member and the assembly is moved, layer side up, into the path of the high- energy flux streams. Either the web, or the streams, or both are moved to traverse the web.
  • the resulting structure comprises fibres arranged in an ordered geometric pattern of intersecting bundles locked together at their intersections solely by fibre interaction.
  • the substrates may be dried while still on the foraminous members but are preferably dried after removal from it.
  • the apertured webs may be subjected to dyeing, printing, heat treatment, or to other types of conventional fabric processing including treatment with resins, binders, sizes, finishes, and the like, surface coated and/or pressed, embossed or laminated with other materials.
  • the caliper of the paper substrate is the thickness of the paper when subjected to a compressive load of 15.5 g/m 2 .
  • a hydroentangled substrate is made using a 50/50 blend of viscose and polypropylene. No chemical binders are used.
  • the substrate is made on a ICBT Perfojet machine using a total energy input of from 0.6 to 1 kW. hour/kg.
  • the resulting substrate has a basis weight of 60 g/m 2 , is soft to the touch, and retains very good tear resistance even when wet.
  • the substrate is cut into squares approximately 210 mm x 210 mm. The example above is repeated, replacing the viscose/polypropylene mixture by cotton.
  • the substrates of these examples are particularly suitable for the purpose of blowing the nose, to collect and remove mucus from the nasal region.
  • the surface texture of the substrate and the low friction provides a disposable article which reduces painful damage and irritation to the skin around the nose, even during repeated nose-blowing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Nonwoven Fabrics (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Paper (AREA)

Abstract

The present invention provides a disposable facial tissue suitable for the purpose of blowing the nose which is made a cheaper and less energy intensive process. Preferably the disposable facial tissue should be strong, soft and absorbent. This is achieved by the use of a fluid entangled substrate for collecting and removing mucus from the nasal region.

Description

METHOD OF USE OF A DISPOSABLE NONWOVEN SUBSTRATE
The present application relates to a method of use of a disposable nonwoven substrate.
Disposable facial tissues intended for the purpose of blowing the nose have been sold for over one hundred years. Nowadays, the process used to manufacture disposable paper tissues is most commonly a wet laying process. In such a process, cellulosic fibres are slurried in an aqueous medium to a concentration of less than 1 % by weight of solids. The slurry is the laid on a foraminous surface in order to provide a substantially planar web of fibres from which almost all of the water is removed. The removal of such high quantities of water is an expensive and energy-intensive process.
The present invention provides a disposable facial tissue suitable for the purpose of blowing the nose which is made a cheaper and less energy intensive process. Preferably the disposable facial tissue should be strong, soft and absorbent.
It is known to use the process of fluid entangling, especially hydroentangling, to make personal hygiene products. Facial pads, for example pads for the removal of make-up, are known to be made by the hydroentangling process. Demak'Up™ is a commercially available brand of make-up removal pads, sold in several European countries by The Procter and Gamble Company. Such pads, however, are thick and bulky and are unsuitable for the purpose of blowing the nose.
Summary of the Invention
The object of the invention is achieved by the use of a fluid entangled substrate, preferably a hydroentangled substrate, for the preparation of a tissue suitable for collecting and removing mucus from the nasal region.
Preferably the substrate has a basis weight of from about 20 to about 100 g/m2, and preferably has a caliper of less than about 0.5 mm and/or a surface area of at least about 10 000 mm2. Caliper, as used herein, is the thickness of the substrate when subjected to a compressive load of 15.5 g/m2.
Detailed Description of the Invention
The disposable paper tissue made by the present invention may be either single-ply or multi-ply. In one embodiment of the invention the tissue is a multi-ply product, comprising at least two juxtaposed layers of the substrate, or one layer of the substrate juxtaposed with another separately formed substrate.
Chemical binders are not required, although some chemical additives may optionally be used to provide, for example, enhanced wet strength and/or enhanced softness. Particularly suitable wet strength agents are polyamide- epihydrochlorin resins including those sold as Kymene™ 557H by Hercules, Inc, of Wilmington, Delaware.
The process for the formation of the substrate is fluid entanglement, preferably hydroentanglement. Further information pertaining to the hydroentangling process can be found in US-A-2 862 251 which relates to hydroentanglement methods for production of nonwoven products; US-A-3 025
585 discloses hydroentanglement processes wherein a layer of irregularly arranged fibers is placed upon the free ends of a group of tapered projections arranged in a predetermined pattern upon a permeable backing member with interconnected fiber accumulating spaces between them; US-A-3 485 706 discloses a nonwoven fabric having a pattern of apertures produced by a hydroentanglemt process; US-A-5 320 900 discloses a spun-laced fabric consisting essentially of polyester fiber and cellulose fibre; and EP-A-0 418 493 which relates to a nonwoven fabric which is produced using a perforated drum as a aperturing member. Hydroentangling equipment suitable for use in making the substrate is obtainable from ICBT Perfojet, S.A., 38330 Mount Bonnot, France. Hydroentangling equipment is disclosed in EP-A-0 776 361 , published on 4th June 1997.
In the prior art the hydroentangled webs have been described for various purposes. For example, apertured webs are useful as component sheets in diapers and other absorbent articles. US-A-3 620 903 discloses nonwoven fabrics, suitable for use as wearing apparel, which are made by fluid entanglement. In particular these nonwoven fabrics are used for medical gowns and drapes, and for wound dressings.
A suitable method of providing the fluid entangled substrate for use in the present invention is a hydroentanglement process wherein a layer of fibres such as a nonwoven batt or other initial fibrous layer is formed on a foraminous member. The initial layer may consist of any web, mat, or batt of loose fibers, disposed in random relationship with one another or in any degree of alignment, such as might be produced by carding and the like. The fibres can be any natural, cellulosic, and/or wholly synthetic material. The initial layer can be made by any desired technique, such as by carding, random laydown, air or slurry deposition and the like. It may consist of blends of fibres of different types and/or sizes. In addition the initial layer may be an assembly of loose fibre webs, such as for example cross-lapped carded webs. In order to adequately interentangle the fibres, the fluid streams impinging upon the fibrous layers can be formed at high pressure and present a high energy flux. In operating the process, water or another suitable liquid or fluid is forced under high pressure through small diameter orifices so as to emerge continuously or intermittently in the form of fine, essentially columnar, high- energy flux streams. The web or other fibrous layer is placed on the foraminous member and the assembly is moved, layer side up, into the path of the high- energy flux streams. Either the web, or the streams, or both are moved to traverse the web. As the impingement continues the fibres of the web are simultaneously realigned, entangled, and locked into place. The resulting structure comprises fibres arranged in an ordered geometric pattern of intersecting bundles locked together at their intersections solely by fibre interaction.
The substrates may be dried while still on the foraminous members but are preferably dried after removal from it. The apertured webs may be subjected to dyeing, printing, heat treatment, or to other types of conventional fabric processing including treatment with resins, binders, sizes, finishes, and the like, surface coated and/or pressed, embossed or laminated with other materials.
As defined herein, the caliper of the paper substrate is the thickness of the paper when subjected to a compressive load of 15.5 g/m2.
Example
A hydroentangled substrate is made using a 50/50 blend of viscose and polypropylene. No chemical binders are used. The substrate is made on a ICBT Perfojet machine using a total energy input of from 0.6 to 1 kW. hour/kg. The resulting substrate has a basis weight of 60 g/m2, is soft to the touch, and retains very good tear resistance even when wet. The substrate is cut into squares approximately 210 mm x 210 mm. The example above is repeated, replacing the viscose/polypropylene mixture by cotton.
The substrates of these examples are particularly suitable for the purpose of blowing the nose, to collect and remove mucus from the nasal region. In particular the surface texture of the substrate and the low friction provides a disposable article which reduces painful damage and irritation to the skin around the nose, even during repeated nose-blowing.

Claims

WHAT IS CLAIMED IS :
1. Method of use of a disposable nonwoven substrate for the preparation of a tissue suitable for collecting and removing mucus from the nasal region, characterised in that the substrate is a fluid entangled substrate.
2. Method of use of a substrate for the preparation of a tissue suitable for collecting and removing mucus from the nasal region according to claim 1 wherein the substrate has a caliper of less than 0.5 mm and a surface area of at least 10 000 mm2.
3. Method of use of a substrate for the preparation of a tissue suitable for collecting and removing mucus from the nasal region according to claim 1 wherein the tissue is a multi-ply product, comprising at least two juxtaposed layers of the substrate, or one layer of the substrate juxtaposed with another separately formed substrate.
4. Method of use of a substrate for the preparation of a tissue suitable for collecting and removing mucus from the nasal region according to claim 1 wherein the substrate is a hydroentangled substrate.
EP99960623A 1998-12-03 1999-11-30 Method of use of a disposable nonwoven substrate Withdrawn EP1135086A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99960623A EP1135086A1 (en) 1998-12-03 1999-11-30 Method of use of a disposable nonwoven substrate

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP98122952A EP1005845A1 (en) 1998-12-03 1998-12-03 Method of use of a disposable nonwoven substrate
EP98122952 1998-12-03
PCT/US1999/028312 WO2000032143A1 (en) 1998-12-03 1999-11-30 Method of use of a disposable nonwoven substrate
EP99960623A EP1135086A1 (en) 1998-12-03 1999-11-30 Method of use of a disposable nonwoven substrate

Publications (1)

Publication Number Publication Date
EP1135086A1 true EP1135086A1 (en) 2001-09-26

Family

ID=8233083

Family Applications (2)

Application Number Title Priority Date Filing Date
EP98122952A Withdrawn EP1005845A1 (en) 1998-12-03 1998-12-03 Method of use of a disposable nonwoven substrate
EP99960623A Withdrawn EP1135086A1 (en) 1998-12-03 1999-11-30 Method of use of a disposable nonwoven substrate

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP98122952A Withdrawn EP1005845A1 (en) 1998-12-03 1998-12-03 Method of use of a disposable nonwoven substrate

Country Status (8)

Country Link
EP (2) EP1005845A1 (en)
JP (1) JP2003526743A (en)
KR (1) KR20010086068A (en)
CN (1) CN1329476A (en)
AU (1) AU1748100A (en)
BR (1) BR9915934A (en)
CA (1) CA2352090A1 (en)
WO (1) WO2000032143A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10064687A1 (en) * 2000-12-22 2002-07-04 Fleissner Maschf Gmbh Co Process for the hydrodynamic application of a product web, also provided with finite products, with water jets and a nozzle device for producing liquid jets
CN106671499A (en) * 2017-01-06 2017-05-17 上海护理佳实业有限公司 Composite netted material structure with absorption function and preparation technology of composite netted material structure

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05320375A (en) * 1992-05-26 1993-12-03 Shinichi Miyashita Surface coating material and surface coating method
EP0750062B1 (en) * 1995-06-23 1999-05-26 The Procter & Gamble Company Disposable skin cleansing articles
ATE186085T1 (en) * 1995-06-23 1999-11-15 Procter & Gamble CLEANING ARTICLE, SUBSTRATE THEREOF AND ITS PRODUCTION PROCESS

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0032143A1 *

Also Published As

Publication number Publication date
CA2352090A1 (en) 2000-06-08
BR9915934A (en) 2001-09-04
WO2000032143A1 (en) 2000-06-08
AU1748100A (en) 2000-06-19
JP2003526743A (en) 2003-09-09
KR20010086068A (en) 2001-09-07
EP1005845A1 (en) 2000-06-07
CN1329476A (en) 2002-01-02

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