EP1369517A2 - Ein reiningendes Gewebe - Google Patents

Ein reiningendes Gewebe Download PDF

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Publication number
EP1369517A2
EP1369517A2 EP20030253441 EP03253441A EP1369517A2 EP 1369517 A2 EP1369517 A2 EP 1369517A2 EP 20030253441 EP20030253441 EP 20030253441 EP 03253441 A EP03253441 A EP 03253441A EP 1369517 A2 EP1369517 A2 EP 1369517A2
Authority
EP
European Patent Office
Prior art keywords
fibers
tissue according
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.)
Withdrawn
Application number
EP20030253441
Other languages
English (en)
French (fr)
Other versions
EP1369517A3 (de
Inventor
Jose Antonio Pereira
Maria Cristina Guedes Jorge 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
Johnson and Johnson Industrial Ltda
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 Johnson and Johnson Industrial Ltda filed Critical Johnson and Johnson Industrial Ltda
Publication of EP1369517A2 publication Critical patent/EP1369517A2/de
Publication of EP1369517A3 publication Critical patent/EP1369517A3/de
Withdrawn legal-status Critical Current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.
  • 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.
  • Figure 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. 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 at 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.
  • 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 figure 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.
  • the process for manufacturing cleansing tissue described above makes it possible to obtain a product different from the others obtained through thermobonding already known of the state of the art, in view of the fact that a very thick product can be obtained because it is basically composed of a low density cells.
  • rayon textile fiber is present in the fibrous structure together with the thermoplastic fiber makes it possible to obtain an additional wettability 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 yarns 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 tissue 20 200 45 350 Tissue of present invention 20 280 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 fibers 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.
  • the increment in the volume is related with the increment of the screen void fraction.
  • 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)
EP20030253441 2002-06-03 2003-06-02 Ein reiningendes Gewebe Withdrawn EP1369517A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR0202023 2002-06-03
BR0202023A BR0202023A (pt) 2002-06-03 2002-06-03 Tecido para limpeza

Publications (2)

Publication Number Publication Date
EP1369517A2 true EP1369517A2 (de) 2003-12-10
EP1369517A3 EP1369517A3 (de) 2004-08-18

Family

ID=29425402

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030253441 Withdrawn EP1369517A3 (de) 2002-06-03 2003-06-02 Ein reiningendes Gewebe

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)

Families Citing this family (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 (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0127483A2 (de) * 1983-05-31 1984-12-05 Johnson & Johnson Heissverschweisste, elastische, nichtgewebte Stoffbahn
US4865221A (en) * 1986-07-30 1989-09-12 Kimberly-Clark Corporation Wet wipe and wipe dispensing arrangement
EP0472992A1 (de) * 1990-08-10 1992-03-04 Kimberly-Clark Corporation Vlieslappen und Verfahren zur Herstellung
EP0596532A1 (de) * 1992-11-06 1994-05-11 Kimberly-Clark Corporation Filmbeschichtetes Material sowie Verfahren und Vorrichtung zu dessen Herstellung

Family Cites Families (5)

* 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
US5620776A (en) * 1992-12-24 1997-04-15 James River Corporation Of Virginia Embossed tissue product with a plurality of emboss elements
JP3409988B2 (ja) * 1997-03-21 2003-05-26 ユニ・チャーム株式会社 拭き取りシート
US6162961A (en) * 1998-04-16 2000-12-19 Kimberly-Clark Worldwide, Inc. Absorbent article
KR100485622B1 (ko) * 2000-01-21 2005-04-27 가오가부시끼가이샤 바닥 청소 시트

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0127483A2 (de) * 1983-05-31 1984-12-05 Johnson & Johnson Heissverschweisste, elastische, nichtgewebte Stoffbahn
US4865221A (en) * 1986-07-30 1989-09-12 Kimberly-Clark Corporation Wet wipe and wipe dispensing arrangement
EP0472992A1 (de) * 1990-08-10 1992-03-04 Kimberly-Clark Corporation Vlieslappen und Verfahren zur Herstellung
EP0596532A1 (de) * 1992-11-06 1994-05-11 Kimberly-Clark Corporation Filmbeschichtetes Material sowie Verfahren und Vorrichtung zu dessen Herstellung

Also Published As

Publication number Publication date
EP1369517A3 (de) 2004-08-18
MXPA03004943A (es) 2005-02-14
AR040243A1 (es) 2005-03-23
CO5400121A1 (es) 2004-05-31
BR0202023A (pt) 2004-03-02
US20030228822A1 (en) 2003-12-11
CA2430581A1 (en) 2003-12-03

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