US20030228822A1 - Cleansing tissue - Google Patents

Cleansing tissue Download PDF

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Publication number
US20030228822A1
US20030228822A1 US10/444,607 US44460703A US2003228822A1 US 20030228822 A1 US20030228822 A1 US 20030228822A1 US 44460703 A US44460703 A US 44460703A US 2003228822 A1 US2003228822 A1 US 2003228822A1
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US
United States
Prior art keywords
tissue according
fibers
cells
area
density
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.)
Abandoned
Application number
US10/444,607
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English (en)
Inventor
Jose Pereira
Maria Cristina Micheletto
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.)
Johnson and Johnson Industrial Ltda
Original Assignee
Individual
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 Individual filed Critical Individual
Assigned to JOHNSON & JOHNSON INDUSTRIAL LTD. reassignment JOHNSON & JOHNSON INDUSTRIAL LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MICHELETTO, MARIA CRISTINA GUEDES JORGE, PEREIRA, JOSE ANTONIO
Publication of US20030228822A1 publication Critical patent/US20030228822A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive fibres
    • D04H1/544—Olefin series
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/608—Including strand or fiber material which is of specific structural definition
    • Y10T442/614—Strand or fiber material specified as having microdimensions [i.e., microfiber]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/608—Including strand or fiber material which is of specific structural definition
    • Y10T442/614—Strand or fiber material specified as having microdimensions [i.e., microfiber]
    • Y10T442/615—Strand or fiber material is blended with another chemically different microfiber in the same layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/69—Autogenously bonded nonwoven fabric
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/69—Autogenously bonded nonwoven fabric
    • Y10T442/692—Containing at least two chemically different strand or fiber materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/697—Containing at least two chemically different strand or fiber materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/697—Containing at least two chemically different strand or fiber materials
    • Y10T442/698—Containing polymeric and natural strand or fiber materials

Definitions

  • the present invention is related to a cleansing tissue, especially a pre-wet cleansing tissue.
  • the non-woven fabrics need to have specific characteristics, mainly concerned with the softness and thickness, to suitably provide an efficient and pleasing cleanness.
  • deansing tissues such as wet cleansing tissues
  • a basic feature to be considered is the possibility of producing non-woven fabrics that are thick, soft and capable of absorbing liquids. It is noted that cellulose improves the absorption of liquids from fabrics.
  • FIG. 1 illustrates a portion of a non-woven fabric 1 produced by a thermobonding process of the prior art, wherein small and low density regions 2 are disposed amongst high density regions 3 . Consequently, the products obtained do not suitably have the combination of softness and liquid absorption.
  • An objective of the present invention is therefore to provide a cleansing tissue and the process for the manufacture thereof, having a low manufacture cost.
  • a second objective of the present invention is to provide a thick and soft cleansing tissue having both a high capacity of retaining fluid and a high wettability.
  • a cleansing tissue comprising a thermobonding non-woven fabric formed from a mixture of fibers containing at least 76% of thermoplastic fibers, the non-woven fabric having a plurality of cells, each cell having a first density and a first volume, the cells being disposed adjacent to one another defining a region between adjacent cells, the region having a second density and a second volume, the second density being higher than the first density, and the second volume being less than the first volume.
  • said non-woven fabric may comprise thermoplastic fibers or a mixture of thermoplastic fibers and cellulosic fibers.
  • FIG. 1 is a view of the arrangement of known non-woven fabric cells.
  • FIG. 2 is a view of the arrangement of a non-woven fabric cells of the present invention.
  • FIG. 2 illustrates the embodiment of a cleansing tissue, specially a pre-wet cleansing tissue of the present invention.
  • this non-woven fabric 4 comprises a plurality of cells 6 disposed adjacent to one another, uniformly or not, particularly in the form of a honeycomb. Adjacent cells 6 define a wall between them, forming a region 5 between cells, so that a wall is common to at least two adjacent cells 6 .
  • cells 6 can be provided with several forms, provided that defining walls between them. Each cell 6 have a first density and a first volume, and the region 5 between cells has a second density and a second volume.
  • the second density of the region 5 between cells is higher than the first density of the cells 6 and the second volume of the region 5 between cells is less than the first volume of the cells 6 .
  • the fact that cells 6 have large sized low density regions makes the fabric thicker, as well as intensifies its softness.
  • polypropylene fibers and rayon fibers are homogeneously mixed in a mixing and blending chamber, and then formed into cards to compose a fibrous web. It should be noticed, however, that other thermoplastic fibers, or even a combination of thermoplastic fiber with cellulose fibers, could be used without departing from the scope of the present invention.
  • a calendering station which comprises at least two calendering rolls: a hot flat roll and a patterned embossing roll having protruding walls in a shape that will define the cells 6 to be formed.
  • This patterned embossing roll deforms the fibrous web, fusing the thermoplastic fibers in the regions determined by the protruding walls (forming the region 5 between cells), reducing the thickness and consequently increasing the density in this region, forming a non-woven fabric composed of a plurality of cells uniformly disposed in the shape of a honeycomb, the cells 6 being determined by the fused region 5 between cells, as illustrated in FIG. 2.
  • the cells 6 have a higher thickness, since they are not formed by fused fibers and (ii) the shape of the cells is determined by the embossing of the roll.
  • the roll had a pentagon-shaped embossing, for example, the cells 6 of the non-woven fabric would have such shapes.
  • rayon textile fiber is present in the fibrous structure together with the thermoplastic fiber makes it possible to obtain an additional wetability due to the chemical absorbency of polar chemical groups of the regenerated cellulose, herein called rayon or viscose.
  • the cleansing tissue of the present invention can also include opacifying agents or dyeing agents, such as TiO 2 or the like, providing an easy color pigmentation in the thermoplastic polypropylene fiber and an easy combination of colors during the process for the preparation of the fibrous web.
  • opacifying agents or dyeing agents such as TiO 2 or the like
  • the process of the present invention also makes it possible to obtain a highly flexible fabric, since several fast adjustments in the control of the polymer mass addition, in the control of the fiber denier within a large range of deniers, and in the control of the fiber cut length within a large range of lengths can be made in the process for the preparation of the fibrous web, as well as the possibility of producing textile fibers having one or several denier with cut dimensions of one or several lengths.
  • said flexibility also makes it possible to use a large variety of polypropylene and rayon textile fibers.
  • the present invention makes it possible to use several ranges of varying parameters, such as different fiber denier (the thickness unit for silk yams and artificial fibers such as rayon and nylon, equal to the thickness of a yarn that weighs 0.05 g every 450 m of length or 1 g every 9,000 m), addition of fibers, fiber mixture, fiber size and several levels of basis weight of the thermobonded fabric.
  • the web has a basis weight of 20 to 60 grams per square meter.
  • thermoplastic fibers preferably a mixture of polypropylene fiber and rayon fiber at a 95%:5% to substantially 76:24% ratio, and more preferably at 90%:10% and 80%:20% ratios can be considered.
  • the polypropylene fiber has a denier between 0.5 and 5.0 denier, more preferably in the 0.8 to 4.0 range, and still more preferably in the 1.3 to 1.5 range.
  • the rayon fiber can have the same denier range above, however the preferred value specifically ranges between 0.8 and 3.
  • Both rayon fibers and polypropylene fibers are processed in a 30 mm to 60 mm cut size range, and even a mixture of one or several sizes can be used in the present invention.
  • the thickness of the tissue subject of this invention varies preferably between 250 to 800 micrometers, and a comparison between already known thermobonded tissue and the present tissue is in the following table 1: Base weight (g/m 2 ) Thickness (micrometers) Known thermobonded 20 200 tissue 45 350 Tissue of present 20 280 invention 45 600
  • thermobonded formed tissue object of this invention is at least 40% thicker than conventional thermobonded formed tissues. These comparison can be measured by a test procedure TN 253.
  • the TiO 2 content it can be in the 0 to 3% range, and preferably in the 0.5 to 2% range for the polypropylene fiber.
  • the rayon fiber has a 0% to 1.5% TiO 2 content as an opacifying agent.
  • colored fibers can be produced by using available standard industrial pigments available in polypropylene manufacturing plants.
  • the polypropylene fiber is treated with a surface finishing surfactant in order to attain a suitable hydrophilic control of the thermobonded fabric.
  • the control of the surface energy in the polypropylene fiber range can be attained by applying the surfactant in the polypropylene weaving process (in 30 to 72 dyne/cm 2 range).
  • the surface energy of the rayon fibers is approximately 72 dyne/cm 2 , thus promoting the wettability in both types of related fibers and fabrics.
  • Pointed configuration (FIG. 1)—approximately 30 points/area.
  • MD corresponds to a cut in the “machine direction”
  • CD corresponds to a cut in the transversal direction
  • the honeycomb structure has average that is 4% higher.
  • the honeycomb structure is 4 to 5 times higher than the pointed pattern with respect to the amount of free fibers, due to the formation of cells in the fabric web.
  • the increment in the volume is related with the increment of the screen void fraction.
  • the void fraction of a fabric can be calculated by using the following equation:
  • Vf 1 ⁇ 1.335( W / ⁇ fiber)
  • the honeycomb structure presents a larger area of free surface fibers, as well as a higher volume of the screen due to the relief of the cells when compared with the standard pointed structure.
  • honeycomb pattern of the present invention results in a free fiber cell with 53% more area and 75% more volume.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Laminated Bodies (AREA)
US10/444,607 2002-06-03 2003-05-23 Cleansing tissue Abandoned US20030228822A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BRPI0202023-8 2002-06-03
BR0202023A BR0202023A (pt) 2002-06-03 2002-06-03 Tecido para limpeza

Publications (1)

Publication Number Publication Date
US20030228822A1 true US20030228822A1 (en) 2003-12-11

Family

ID=29425402

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/444,607 Abandoned US20030228822A1 (en) 2002-06-03 2003-05-23 Cleansing tissue

Country Status (7)

Country Link
US (1) US20030228822A1 (de)
EP (1) EP1369517A3 (de)
AR (1) AR040243A1 (de)
BR (1) BR0202023A (de)
CA (1) CA2430581A1 (de)
CO (1) CO5400121A1 (de)
MX (1) MXPA03004943A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9394637B2 (en) 2012-12-13 2016-07-19 Jacob Holm & Sons Ag Method for production of a hydroentangled airlaid web and products obtained therefrom
US11560658B2 (en) 2017-08-16 2023-01-24 Kimberly-Clark Worldwide, Inc. Method of making a nonwoven web

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4260443A (en) * 1978-10-20 1981-04-07 Grain Processing Corporation Laminated absorbent process
US4333979A (en) * 1980-08-18 1982-06-08 Kimberly-Clark Corporation Soft, bulky, lightweight nonwoven web and method of producing; the web has both fused spot bonds and patterned embossments
US4436780A (en) * 1982-09-02 1984-03-13 Kimberly-Clark Corporation Nonwoven wiper laminate
US4865221A (en) * 1986-07-30 1989-09-12 Kimberly-Clark Corporation Wet wipe and wipe dispensing arrangement
US5620776A (en) * 1992-12-24 1997-04-15 James River Corporation Of Virginia Embossed tissue product with a plurality of emboss elements
US6013349A (en) * 1997-03-21 2000-01-11 Uni-Charm Corporation Wiping sheet
US6162961A (en) * 1998-04-16 2000-12-19 Kimberly-Clark Worldwide, Inc. Absorbent article
US20030045197A1 (en) * 2000-01-21 2003-03-06 Shusuke Kakiuchi Floor cleaning sheet

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR8302903A (pt) * 1983-05-31 1985-01-15 Johnson & Johnson Processo para produzir um pano nao-tecido termo-unido elastico e pano nao-tecido termo-unido elastico
US5223319A (en) * 1990-08-10 1993-06-29 Kimberly-Clark Corporation Nonwoven wiper having high oil capacity
US5370764A (en) * 1992-11-06 1994-12-06 Kimberly-Clark Corporation Apparatus for making film laminated material

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4260443A (en) * 1978-10-20 1981-04-07 Grain Processing Corporation Laminated absorbent process
US4333979A (en) * 1980-08-18 1982-06-08 Kimberly-Clark Corporation Soft, bulky, lightweight nonwoven web and method of producing; the web has both fused spot bonds and patterned embossments
US4436780A (en) * 1982-09-02 1984-03-13 Kimberly-Clark Corporation Nonwoven wiper laminate
US4865221A (en) * 1986-07-30 1989-09-12 Kimberly-Clark Corporation Wet wipe and wipe dispensing arrangement
US5620776A (en) * 1992-12-24 1997-04-15 James River Corporation Of Virginia Embossed tissue product with a plurality of emboss elements
US6013349A (en) * 1997-03-21 2000-01-11 Uni-Charm Corporation Wiping sheet
US6162961A (en) * 1998-04-16 2000-12-19 Kimberly-Clark Worldwide, Inc. Absorbent article
US20030045197A1 (en) * 2000-01-21 2003-03-06 Shusuke Kakiuchi Floor cleaning sheet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9394637B2 (en) 2012-12-13 2016-07-19 Jacob Holm & Sons Ag Method for production of a hydroentangled airlaid web and products obtained therefrom
US11622919B2 (en) 2012-12-13 2023-04-11 Jacob Holm & Sons Ag Hydroentangled airlaid web and products obtained therefrom
US11560658B2 (en) 2017-08-16 2023-01-24 Kimberly-Clark Worldwide, Inc. Method of making a nonwoven web

Also Published As

Publication number Publication date
EP1369517A3 (de) 2004-08-18
MXPA03004943A (es) 2005-02-14
EP1369517A2 (de) 2003-12-10
AR040243A1 (es) 2005-03-23
CO5400121A1 (es) 2004-05-31
BR0202023A (pt) 2004-03-02
CA2430581A1 (en) 2003-12-03

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AS Assignment

Owner name: JOHNSON & JOHNSON INDUSTRIAL LTD., BRAZIL

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PEREIRA, JOSE ANTONIO;MICHELETTO, MARIA CRISTINA GUEDES JORGE;REEL/FRAME:014401/0925

Effective date: 20030730

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION