WO2009021473A1 - Nonwoven fabric and method for the production thereof - Google Patents

Nonwoven fabric and method for the production thereof Download PDF

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Publication number
WO2009021473A1
WO2009021473A1 PCT/CZ2008/000093 CZ2008000093W WO2009021473A1 WO 2009021473 A1 WO2009021473 A1 WO 2009021473A1 CZ 2008000093 W CZ2008000093 W CZ 2008000093W WO 2009021473 A1 WO2009021473 A1 WO 2009021473A1
Authority
WO
WIPO (PCT)
Prior art keywords
nonwoven fabric
filaments
roller
basis weight
range
Prior art date
Application number
PCT/CZ2008/000093
Other languages
French (fr)
Inventor
Frantisek Klaska
Original Assignee
Pegas Nonwovens S.R.O.
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 Pegas Nonwovens S.R.O. filed Critical Pegas Nonwovens S.R.O.
Priority to US12/673,681 priority Critical patent/US20100305543A1/en
Priority to EP08801030A priority patent/EP2188428A1/en
Priority to BRPI0815469 priority patent/BRPI0815469A2/en
Priority to MX2010001759A priority patent/MX2010001759A/en
Publication of WO2009021473A1 publication Critical patent/WO2009021473A1/en

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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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • A61F13/51401—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56—Supporting or fastening means
    • A61F13/62—Mechanical fastening means, ; Fabric strip fastener elements, e.g. hook and loop
    • A61F13/622—Fabric strip fastener elements, e.g. hook and loop
    • A61F13/627—Fabric strip fastener elements, e.g. hook and loop characterised by the loop
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/625—Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/007—Addition polymers
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15203—Properties of the article, e.g. stiffness or absorbency
    • A61F2013/15284—Properties of the article, e.g. stiffness or absorbency characterized by quantifiable properties
    • A61F2013/15406—Basis weight
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F2013/51002—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers with special fibres
    • A61F2013/51009—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers with special fibres characterized by the shape of the fibres
    • A61F2013/51011—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers with special fibres characterized by the shape of the fibres characterized by the count of the fibres, e.g. denier or tex
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F2013/51002—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers with special fibres
    • A61F2013/51014—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers with special fibres characterized by the connection between the fibres
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F2013/51002—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers with special fibres
    • A61F2013/51023—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers with special fibres being polymeric fibres
    • A61F2013/51026—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers with special fibres being polymeric fibres being in thermoplastic material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F2013/51002—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers with special fibres
    • A61F2013/51023—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers with special fibres being polymeric fibres
    • A61F2013/51028—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers with special fibres being polymeric fibres being bicomponent
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • A61F13/51401—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material
    • A61F2013/51441—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a fibrous material
    • A61F2013/51452—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a fibrous material being nonwovens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92266—Mechanical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92323—Location or phase of measurement
    • B29C2948/92485—Start-up, shut-down or parameter setting phase; Emergency shut-down; Material change; Test or laboratory equipment or studies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92523—Force; Tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92923—Calibration, after-treatment or cooling zone
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24595—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness and varying density
    • Y10T428/24603—Fiber containing component
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24826—Spot bonds connect components

Definitions

  • Nonwove ⁇ fabric and method for the production thereof
  • the present invention relates to nonwoven fabric of a basis weight of 10 to 30 g/m 2 prepared from endless filaments of 0.5 to 3.5 den of fineness by spun-melt technology primarily for producing hygienic products and method of production thereof.
  • nonwoven fabrics are used for the construction of these products prepared by spun-melt technology from endless polyolefin filaments, i.e. spunbonding and producing sheeting layers of the product.
  • the top-sheet On the one hand the top-sheet, on the other the back-sheet.
  • the basis weight of these nonwoven fabrics is usually in the range from 10 to 30 g/m2 and their thickness in the range from 0.15 to 0.25 mm.
  • the achieved ratio of basis weight and thickness, that is the volume mass, indicates the bulk of the product and in this case it is in the range from 40 to 200 kg/m 3 .
  • the nonwoven fabrics currently used for hygienic products are thermally reinforced by raster calender, making use of a raster pattern with a bonding area of 17 to 25 % of the total area of the raster calender.
  • An often used raster for this type of nonwoven fabrics is the so- called "pyramid" pattern, available from the manufacturer of the embossed surfaces the company Unre under the trade designation U 2888.
  • This known and current method of thermal reinforcement of nonwoven fabrics makes it possible to produce sufficiently durable nonwoven fabric, nevertheless, its drawback consists in the fact that such nonwoven fabrics are not sufficiently bulky, sufficiently elastic, sufficiently soft and sufficiently flexible, which manifests itself by general stiffness of the final product as diapers, hygienic napkins and incontinence pads.
  • the subject matter of the nonwoven fabric according to the present invention consists in the fact that it is composed of endless polyolefin filaments of a volume mass in the range from 40 to 80 g/m 3 , basis weight in the range from 10 to 30 g/m 2 and thickness in the range from 0,15 to 0.80 mm, thermally bonded on a part of its surface in the range from 10 to 16 % of its total surface area.
  • the polyolefin filaments are preferably monomeric or bicomponent filaments.
  • thermobonded on a part of its surface which amounts to 10 to 16 % of its total surface area, the bonding area being usually equal to 14 % and the whole nonwoven fabric is treated with hydrophilic lubrication, for example with a lubricating agent.
  • the thermal bonding is accomplished in the form of longitudinal spots distributed in the shape of a raster, where each adjacent line is offset with respect to both adjacent lines by a half of the longitudinal pitch of the raster.
  • the pitch of the individual bonding spots in the longitudinal direction is equal to 2 mm and in the transversal direction of 5.58 mm
  • the width of the bonding spot is 0.4 mm and its length is equal to 3.99 mm
  • the number of points per square cm is 9 points
  • the bonding spot v is 1.562 mm 2
  • the raster depth is 0.7 mm.
  • the method for producing the nonwoven fabric according to the present invention consists in the fact that a basic system of endless filaments of 0.5 to 3.5 den of fineness is created by spun-melt technology, which is stochastically deposited on a moving belt, of a basis weight of 10 to g/m and then is passes through a calendering system consisting of a smooth roller and an embossed roller.
  • the temperature of the embossed roller is preferably in the range from 110 to 190 0 C and the pressing force of the embossed roller on the smooth roller is in the range from 50 to 100 N/mm and the endless filaments are produced by monopolymeric polyolefin endless filaments.
  • nonwoven fabric is used as a covering back-sheet in the final hygienic product and, at the same time, as a loop counter-fastener in the fastening system "hook-loop".
  • the invention solves to a considerable extent the above-mentioned disadvantages of the prior art, namely the high stiffness, insufficient softness and compliance of the nonwoven fabric.
  • the method according to the present invention provides a very bulky, soft, nonwoven fabric of low stiffness, loose structure, with a very good hand and good flexibility, and with high stretching capacity even in the transversal direction.
  • a pattern with smaller bonding area and with optimal distribution of bonding points on the calender embossed roller has been applied.
  • Fig. 1 illustrates the pattern of an embossed roller with dimensions specified in mm
  • Fig. 2 illustrates secion A-A indicated in Fig. 1 with dimensions specified in mm
  • Fig. 3 illustrates the appearance of the nonwoven fabric according to the present invention. Examples of invention embodiments
  • the spun-melt nonwoven fabric according to the present invention is prepared from endless filaments, for example monopolymeric polyolefin filaments of required basis weight stochastically deposited on a moving belt.
  • the filament fineness is within a range of 0.5 to 3.5 den, most frequently higher than 1.0 den, and the basis weight is within the range of 10 to 30 g/m 2 .
  • the polymer granules are hot melted to obtain melt and consequently extruded through melt-spinning nozzles to produce a number of fine filaments.
  • the air nozzles provide the elongation of filaments, which are deposited on a moving belt to form a stochastically arranged flat filament configuration.
  • the produced flat filament configuration passes through the bonding device constituted by bonding calender rollers heated up to a temperature of 110 to 190 0 C adjusted to a pressure of 50 to 100 N/mm.
  • One of the pair of bonding rollers is provided with a bonding raster produced by a series of elevated bonding areas - bonding points.
  • the pattern of the embossed calender roller is constituted by a series of parallel longitudinally arranged bonding points whose bonding area is in range of 10 to 16 % of the surface area of the calender roller, the preferred bonding area being 14 % of the surface area of the calender roller.
  • Thermal bonding of the nonwoven fabric is in the form of longitudinal spots distributed on the latter in the shape of a raster, where each adjacent line is offset with respect to both adjacent lines by a half of the raster longitudinal pitch.
  • Volume mass is the function of ratio of basis weight and thickness - when the basis weight is maintained at a constant value and the thickness is less, the nonwoven fabric is bulkier and its volume mass is less and vice versa. In the case the basis weight is 14 g/m 2 , the volume mass is lower by
  • the nonwoven fabric is manufactured from endless filaments produced from two polymers, the polymers being polyoleflns.
  • the cross section of the filament may be in the form of core/sheath or side/side, the abundance of the individual polymers being in the range of 10 to 90 %, for example polymer A 90 % and polymer B 10 % and vice versa.
  • the invention enables a simplified embodiment of fasteners of hygienic products of the "hook-loop" type.
  • one part of the fastener comprises hooks and the other part, i.e. the counter-fastener, consists of a strip with loosened fibers serving as loop-like fastening elements into which the hooks engage.
  • the application of nonwoven fabrics according to the present invention enables fastening without the use of a counter-fastener, which is substituted by the voluminous nonwoven fabric according to the present invention.
  • the nonwoven fabric is made from polypropylene filaments with a fineness of 1.5 den. Its basis weight is 14 g/m 2 and its thickness is 0.23 mm, its volume mass thus being 60.86 kg/m 3 .
  • a raster calender was used provided with a roller with pattern U 3343B described above and the applied technological characteristics were as follows:
  • the nonwoven fabric is made from polypropylene filaments of a fineness of 1.5 den. Its basis weight is 14 g/m 2 and its thickness is 0.23 mm, its volume mass thus being 60.86 kg/m 3 .
  • the nonwoven fabric is treated with hydrophilic lubrication, for example with lubricating agent Silastol PHP 90 from the company Schill&Seilacher, in the amount of 0.40 % by weight of the material.
  • hydrophilic lubrication for example with lubricating agent Silastol PHP 90 from the company Schill&Seilacher, in the amount of 0.40 % by weight of the material.
  • WSP which means the international standard of the World Strategic Partners g
  • the nonwoven fabric is made from polypropylene filaments of a fineness of 1.5 den. Its basis weight is 17 g/m 2 and its thickness is 0.28 mm, its volume mass thus being 60.71 kg/m 3 .
  • a raster calender was used provided with a roller with U 3343B pattern and the applied technological characteristics were as follows:
  • the nonwoven fabric is made from polypropylene filaments of a fineness of 1.5 den. Its basis weight is 17 g/m and its thickness is 0.28 mm, its volume mass thus being 60.71 kg/m 3 .
  • the nonwoven fabric is treated with hydrophilic lubricating agent
  • Silastol PHP 90 from the company Schill&Seilacher, in the amount of 0.40
  • the nonwoven fabric is made from polypropylene filaments of a fineness of 1.5 den. Its basis weight is 20 g/m and its thickness is 0.31 mm, its volume mass thus being 64.51 kg/m 3 .
  • the nonwoven fabric is made from polypropylene filaments of a fineness of 1.5 den. Its basis weight is 20 g/m 2 and its thickness is 0.31 mm, its volume mass thus being 64.51 kg/m 3 .
  • the nonwoven fabric is treated with hydrophilic lubrication, for example with lubricating agent Silastol PHP 90 from the company
  • Schill&Seilacher in the amount of 0.40 % by weight of the material.
  • the nonwoven fabric is made from polypropylene and polyethylene filaments in the form of core/sheath in the ratio of 70 % of polypropylene and 30 % of polyethylene of a fineness of 1.5 den. Its basis weight is 12 g/m and its thickness is 0.17 mm, its volume mass thus being 70.58 kg/m .
  • a raster calender was used provided with a roller with U 3343B pattern and the applied technological characteristics were as follows:
  • Example 8 The nonwoven fabric is made from polypropylene and polyethylene filaments in the form of core/sheath in the ratio of 70 % of polypropylene and 30 % of polyethylene of a fineness of 1.5 den Its basis weight is 12 g/m and its thickness is 0.17 mm, its volume mass thus being 70.58 kg/m .
  • the nonwoven fabric is treated with hydrophilic lubrication, for example with lubricating agent Silastol PHP 90 from the company Schill&Seilacher, in the amount of 0.40 % by weight of the material.
  • hydrophilic lubrication for example with lubricating agent Silastol PHP 90 from the company Schill&Seilacher, in the amount of 0.40 % by weight of the material.
  • the nonwoven fabric is made from polypropylene and polyethylene filaments in the form of core/sheath in the ratio of 70 % of polypropylene and 30% of polyethylene of a fineness of 1.5 den. Its basis weight is 14 g/m 2 and its thickness is 0.18 mm, its volume mass thus being 77.77 kg/m 3 .
  • a raster calender was used provided with a roller with U 3343B pattern and the applied technological characteristics were as follows:
  • the nonwoven fabric is made from polypropylene and polyethylene filaments in the form of core/sheath in the ratio of 70 % of polypropylene and 30 % of polyethylene of a fineness of 1.5 den. Its basis weight is 14 g/m and its thickness is 0.18 mm, its volume mass thus being 77.77 kg/m .
  • the nonwoven fabric is treated with hydrophilic lubricating agent
  • Silastol PHP 90 from the company Schill&Seilacher, in the amount of 0.40
  • Example 11 The nonwoven fabric is made from polypropylene and polyethylene filaments in the form of core/sheath in the ratio of 70 % of polypropylene and 30 % of polyethylene of a fineness of 1.5 den. Its basis weight is 17 g/m 2 and its thickness is 0.18 mm, its volume mass thus being 9 kg/m 3 . To reinforce it, a raster calender was used provided with a roller with U 3343B pattern and the applied technological characteristics were as follows:
  • Example 12 The nonwoven fabric is made from polypropylene and polyethylene filaments in the form of core/sheath in the ratio of 70 % of polypropylene and 30 % of polyethylene of a fineness of 1.5 den. Its basis weight is 17 g/m and its thickness is 0.18 mm, its volume mass thus being 9 kg/m .
  • the nonwoven fabric is treated with hydrophilic lubricating agent Silastol PHP 90 from the company Schill&Seilacher, in the amount of 0.40 % by weight of the material.
  • the nonwoven fabric is made from polypropylene and polyethylene filaments in the form of core/sheath in the ratio of 70 % of polypropylene and 30 % of polyethylene of a fineness of 1.5 den Its basis weight is 20 g/m 2 and its thickness is 0.25 mm, its volume mass thus being 80.00 kg/m 3 .
  • a raster calender was used provided with a roller with U 3343 B pattern and the applied technological characteristics were as follows:
  • the nonwoven fabric is made from polypropylene and polyethylene filaments in the form of core/sheath in the ratio of 70 % of polypropylene and 30 % of polyethylene of a fineness of 1.5 den. Its basis weight is 20 g/m and its thickness is 0.25 mm, its volume mass thus being 80.00 kg/m .
  • the nonwoven fabric is treated with hydrophilic lubrication, for example with lubricating agent Silastol PHP 90 from the company
  • Schill&Seilacher in the amount of 0.40 % by weight of the material.
  • Characteristic measurement method uunniittss value
  • Example 15 The nonwoven fabric is made from polypropylene filaments of a fineness of 0.5 den. Its basis weight is 12 g/m 2 and its thickness is 0.17 mm, its volume mass thus being 70.58 kg/m 3 . To reinforce it, a raster calender was used provided with a roller with U 3343B pattern and the applied technological characteristics were as follows:
  • Example 16 The nonwoven fabric is made from polypropylene filaments of a fineness of 0.5 den. Its basis weight is 12 g/m and its thickness is 0.17 mm, its volume mass thus being 70.58 kg/m 3 .
  • the nonwoven fabric is treated with hydrophilic lubrication, for example with lubricating agent Silastol PHP 90 from the company Schill&Seilacher, in the amount of 0.40 % by weight of the material.
  • hydrophilic lubrication for example with lubricating agent Silastol PHP 90 from the company Schill&Seilacher, in the amount of 0.40 % by weight of the material.
  • the nonwoven fabric is made from polypropylene filaments of a fineness of 1.5 den. Its basis weight is 14 g/m 2 and its thickness is 0.19 mm, its volume mass thus being 73.68 kg/m 3 .
  • the nonwoven fabric is made from polypropylene filaments of a fineness of 1.5 den. Its basis weight is 14 g/m and its thickness is 0.19 mm, its volume mass thus being 73.68 kg/m 3 .
  • the nonwoven fabric is treated with hydrophilic lubricating agent
  • Silastol PHP 90 from the company Schill&Seilacher, in the amount of 0.40
  • Characteristic measurement method uunniittss value
  • Example 19 The nonwoven fabric is made from polypropylene filaments of a fineness of 1.5 den. Its basis weight is 17 g/m 2 and its thickness is 0.285 mm, its volume mass thus being 59.64 kg/m 3 .
  • the nonwoven fabric is made from polypropylene filaments of a fineness of 1.5 den. Its basis weight is 17 g/m 2 and its thickness is 0.285 mm, its volume mass thus being 59.64 kg/m 3 .
  • the nonwoven fabric is treated with hydrophilic lubrication, for example with lubricating agent Silastol PHP 90 from the company
  • Schill&Seilacher in the amount of 0.40 % by weight of the material.
  • a raster calender was used provided with a roller with U 3343B pattern and the applied technological characteristics were as follows:
  • the nonwoven fabric is made from polypropylene filaments of a fineness of 1.5 den. Its basis weight is 17 g/m 2 and its thickness is 0.28 mm, its volume mass thus being 60.71 kg/m 3 .
  • the nonwoven fabric is made from polypropylene filaments of a fineness of 1.5 den. Its basis weight is 25 g/m 2 and its thickness is 0.21 mm, its volume mass thus being 119.1 kg/m 3 .
  • a raster calender was used provided with a roller with U 3343B pattern and the applied technological characteristics were as follows:

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Abstract

Nonwoven fabrics of a basis weight of 10 to 30 g/m2 prepared from endless filaments of 0.5 to 3.5 den of fineness by spun-melt technology primarily for producing hygienic products. It consists of endless polyolefin filaments of a volume mass in the range from 40 to 80 g/m3, its basis weight is in the range from 10 to 30 g/m2 and its thickness is in the range from 0.15 to 0.80 mm, being thermally bonded on a part of its surface in the range from 10 to 16 % of its total surface area. The method for producing the nonwoven fabrics where a basic system of endless filaments of 0.5 to 3.5 den of fineness is created by spun-melt technology, which is stochastically deposited on a moving belt, of a basis weight of 10 to 30 g/m2 and then it passes through a calendering system consisting of a smooth roller and an embossed roller.

Description

Nonwoveπ fabric and method for the production thereof
Field of the invention
The present invention relates to nonwoven fabric of a basis weight of 10 to 30 g/m2 prepared from endless filaments of 0.5 to 3.5 den of fineness by spun-melt technology primarily for producing hygienic products and method of production thereof.
Background of the invention In the manufacture of hygienic absorbent products as diapers for children, sanitary napkins and incontinence pads for patients, mostly nonwoven fabrics are used for the construction of these products prepared by spun-melt technology from endless polyolefin filaments, i.e. spunbonding and producing sheeting layers of the product. On the one hand the top-sheet, on the other the back-sheet. The basis weight of these nonwoven fabrics is usually in the range from 10 to 30 g/m2 and their thickness in the range from 0.15 to 0.25 mm. The achieved ratio of basis weight and thickness, that is the volume mass, indicates the bulk of the product and in this case it is in the range from 40 to 200 kg/m3. These processes are described for example in patents US 5,814,349 a US 5,814,249 (Reifenhauser).
The nonwoven fabrics currently used for hygienic products are thermally reinforced by raster calender, making use of a raster pattern with a bonding area of 17 to 25 % of the total area of the raster calender. An often used raster for this type of nonwoven fabrics is the so- called "pyramid" pattern, available from the manufacturer of the embossed surfaces the company Ungericht under the trade designation U 2888. This known and current method of thermal reinforcement of nonwoven fabrics makes it possible to produce sufficiently durable nonwoven fabric, nevertheless, its drawback consists in the fact that such nonwoven fabrics are not sufficiently bulky, sufficiently elastic, sufficiently soft and sufficiently flexible, which manifests itself by general stiffness of the final product as diapers, hygienic napkins and incontinence pads.
Subject matter of the invention
The subject matter of the nonwoven fabric according to the present invention consists in the fact that it is composed of endless polyolefin filaments of a volume mass in the range from 40 to 80 g/m3, basis weight in the range from 10 to 30 g/m2 and thickness in the range from 0,15 to 0.80 mm, thermally bonded on a part of its surface in the range from 10 to 16 % of its total surface area.
The polyolefin filaments are preferably monomeric or bicomponent filaments.
To achieve the required bulk, it is essential that it is thermobonded on a part of its surface, which amounts to 10 to 16 % of its total surface area, the bonding area being usually equal to 14 % and the whole nonwoven fabric is treated with hydrophilic lubrication, for example with a lubricating agent.
It is an advantage that the thermal bonding is accomplished in the form of longitudinal spots distributed in the shape of a raster, where each adjacent line is offset with respect to both adjacent lines by a half of the longitudinal pitch of the raster. The pitch of the individual bonding spots in the longitudinal direction is equal to 2 mm and in the transversal direction of 5.58 mm, the width of the bonding spot is 0.4 mm and its length is equal to 3.99 mm, the number of points per square cm is 9 points, the bonding spot v is 1.562 mm2, the raster depth is 0.7 mm. The method for producing the nonwoven fabric according to the present invention consists in the fact that a basic system of endless filaments of 0.5 to 3.5 den of fineness is created by spun-melt technology, which is stochastically deposited on a moving belt, of a basis weight of 10 to g/m and then is passes through a calendering system consisting of a smooth roller and an embossed roller.
The temperature of the embossed roller is preferably in the range from 110 to 190 0C and the pressing force of the embossed roller on the smooth roller is in the range from 50 to 100 N/mm and the endless filaments are produced by monopolymeric polyolefin endless filaments.
The advantage consists in the fact that nonwoven fabric is used as a covering back-sheet in the final hygienic product and, at the same time, as a loop counter-fastener in the fastening system "hook-loop".
The invention solves to a considerable extent the above-mentioned disadvantages of the prior art, namely the high stiffness, insufficient softness and compliance of the nonwoven fabric. The method according to the present invention provides a very bulky, soft, nonwoven fabric of low stiffness, loose structure, with a very good hand and good flexibility, and with high stretching capacity even in the transversal direction. A pattern with smaller bonding area and with optimal distribution of bonding points on the calender embossed roller has been applied.
Brief description of figures in drawings
Fig. 1 illustrates the pattern of an embossed roller with dimensions specified in mm, Fig. 2 illustrates secion A-A indicated in Fig. 1 with dimensions specified in mm and Fig. 3 illustrates the appearance of the nonwoven fabric according to the present invention. Examples of invention embodiments
The spun-melt nonwoven fabric according to the present invention is prepared from endless filaments, for example monopolymeric polyolefin filaments of required basis weight stochastically deposited on a moving belt. The filament fineness is within a range of 0.5 to 3.5 den, most frequently higher than 1.0 den, and the basis weight is within the range of 10 to 30 g/m2.
In the known process of nonwoven fabric production of spun-melt type, the polymer granules are hot melted to obtain melt and consequently extruded through melt-spinning nozzles to produce a number of fine filaments. The air nozzles provide the elongation of filaments, which are deposited on a moving belt to form a stochastically arranged flat filament configuration.
The produced flat filament configuration passes through the bonding device constituted by bonding calender rollers heated up to a temperature of 110 to 190 0C adjusted to a pressure of 50 to 100 N/mm. One of the pair of bonding rollers is provided with a bonding raster produced by a series of elevated bonding areas - bonding points.
The pattern of the embossed calender roller is constituted by a series of parallel longitudinally arranged bonding points whose bonding area is in range of 10 to 16 % of the surface area of the calender roller, the preferred bonding area being 14 % of the surface area of the calender roller.
We have used the pattern designated by the manufacturer of raster surfaces Ungricht by trade designation U 3343B. As illustrated in Fig. 2, the most important dimensions of this pattern are as follows:
- bonding area 14 %
- number of points per cm2 is 9 points
- bonding area in /mm / is 1.562 mm - depth of engraving is 0.7 mm
Thermal bonding of the nonwoven fabric is in the form of longitudinal spots distributed on the latter in the shape of a raster, where each adjacent line is offset with respect to both adjacent lines by a half of the raster longitudinal pitch.
Volume mass is the function of ratio of basis weight and thickness - when the basis weight is maintained at a constant value and the thickness is less, the nonwoven fabric is bulkier and its volume mass is less and vice versa. In the case the basis weight is 14 g/m2, the volume mass is lower by
17 %, in the case the basis weight is 17 g/m2, the volume mass is lower by 27 %, in the case the basis weight is 20 g/m2, the volume mass is lower by 32 % than in nonwoven fabrics of comparable basis weight reinforced by a current pattern U 2888. According to another embodiment, the nonwoven fabric is manufactured from endless filaments produced from two polymers, the polymers being polyoleflns. The cross section of the filament may be in the form of core/sheath or side/side, the abundance of the individual polymers being in the range of 10 to 90 %, for example polymer A 90 % and polymer B 10 % and vice versa.
By creating a loose structure of the nonwoven fabric, the invention enables a simplified embodiment of fasteners of hygienic products of the "hook-loop" type. In the standard hook-type fasteners, one part of the fastener comprises hooks and the other part, i.e. the counter-fastener, consists of a strip with loosened fibers serving as loop-like fastening elements into which the hooks engage. The application of nonwoven fabrics according to the present invention enables fastening without the use of a counter-fastener, which is substituted by the voluminous nonwoven fabric according to the present invention.
Specific examples of nonwoven fabric embodiments according to the present invention:
Example 1
The nonwoven fabric is made from polypropylene filaments with a fineness of 1.5 den. Its basis weight is 14 g/m2 and its thickness is 0.23 mm, its volume mass thus being 60.86 kg/m3. To reinforce it, a raster calender was used provided with a roller with pattern U 3343B described above and the applied technological characteristics were as follows:
Calender rollers temperature (smooth roller/embossed roller): 147/155 0C
Pressure of both rollers: 70 N/mm Achieved characteristics of the nonwoven fabric:
Characteristic: measurement method units value
Longitudinal tensile strength EN 29073 T3 N/50mm 31.7
Transversal tensile strength EN 29073 T3 N/50mm 14.1
Longitudinal elongation at break EN 29073 T3 % 81.1 Transversal elongation at break EN 29073 T3 % 77.1
Bending stiffness (Handle-O-Meter) 1ST 90.3.2001 mN 139.8 where EN designates a European Standard
1ST designates an international standard according to the American
Association of the Nonwoven Fabrics Industry INDA. Example 2
The nonwoven fabric is made from polypropylene filaments of a fineness of 1.5 den. Its basis weight is 14 g/m2 and its thickness is 0.23 mm, its volume mass thus being 60.86 kg/m3.
The nonwoven fabric is treated with hydrophilic lubrication, for example with lubricating agent Silastol PHP 90 from the company Schill&Seilacher, in the amount of 0.40 % by weight of the material.
To reinforce it, a raster calender was used provided with a roller with U 3343 B pattern and the applied technological characteristics were as follows:
Calender rollers temperature (smooth roller/embossed roller): 147/1550C Pressure of both rollers: 70 N/mm Achieved characteristics of the nonwoven fabric: Characteristic: measurement method units value
Longitudinal tensile strength EN 29073 T3 N/50mm 31.7 Transversal tensile strength EN 29073 T3 N/50mm 14.1 Longitudinal elongation at break EN 29073 T3 % 81.1
Transversal elongation at break EN 29073 T3 % 77.1 Bending stiffness 1ST 90.3.2001 mN 139.8
Liquid strike-through time EDANA 150.5-02 s 2.04
Run-off WSP 80.9 (05) g 0.00 where EDANA is the European Disposables And Nonwovens Association The standards of both Associations are gradually unified and designated as:
WSP, which means the international standard of the World Strategic Partners g
Example 3
The nonwoven fabric is made from polypropylene filaments of a fineness of 1.5 den. Its basis weight is 17 g/m2 and its thickness is 0.28 mm, its volume mass thus being 60.71 kg/m3. To reinforce it, a raster calender was used provided with a roller with U 3343B pattern and the applied technological characteristics were as follows:
Calender rollers temperature (smooth roller/embossed roller): 142/147 0C Pressure of both rollers: 73 N/mm Achieved characteristics of the nonwoven fabric:
Characteristic: measurement method units value
Longitudinal tensile strength EN 29073 T3 N/50mm 34.7
Transversal tensile strength EN 29073 T3 N/50mm 18.0
Longitudinal elongation at break EN 29073 T3 % 82.3 Transversal elongation at break EN 29073 T3 % 83.8
Bending stiffness 1ST 90.3.2001 mN 202.2
Example 4
The nonwoven fabric is made from polypropylene filaments of a fineness of 1.5 den. Its basis weight is 17 g/m and its thickness is 0.28 mm, its volume mass thus being 60.71 kg/m3.
The nonwoven fabric is treated with hydrophilic lubricating agent
Silastol PHP 90 from the company Schill&Seilacher, in the amount of 0.40
% by weight of the material. To reinforce it, a raster calender was used provided with a roller with U 3343B pattern and the applied technological characteristics were as follows:
Calender rollers temperature (smooth roller/embossed roller): 142/147 0C Pressure of both rollers: 73 N/mm
Achieved characteristics of the nonwoven fabric:
Characteristic: measurement method units value
Longitudinal tensile strength EN 29073 T3 N/50mm 34.7 Transversal tensile strength EN 29073 T3 N/50mm 18.0 Longitudinal elongation at break EN 29073 T3 % 82.3 Transversal elongation at break EN 29073 T3 % 83.8 Bending stiffness 1ST 90.3.2001 mN 202.2
Liquid strike-through time EDANA 150.5-02 S 2.24 Run-off WSP 80.9 (05) g 0.00
Example 5
The nonwoven fabric is made from polypropylene filaments of a fineness of 1.5 den. Its basis weight is 20 g/m and its thickness is 0.31 mm, its volume mass thus being 64.51 kg/m3.
To reinforce it, a raster calender was used provided with a roller with U 3343B pattern and the applied technological characteristics were as follows:
Calender rollers temperature (smooth roller/embossed roller): 154/163 0C Pressure of both rollers: 75 N/mm
Achieved characteristics of the nonwoven fabric:
Characteristic: measurement method uunniittss value
Longitudinal tensile strength EN 29073 T3 N/50mm 42.3
Transversal tensile strength EN 29073 T3 N/50mm 23.2 Longitudinal elongation at break EN 29073 T3 % 82.3
Transversal elongation at break EN 29073 T3 % 86.3
Bending stiffness 1ST 90.3.2001 mN 269.0 Example 6
The nonwoven fabric is made from polypropylene filaments of a fineness of 1.5 den. Its basis weight is 20 g/m2 and its thickness is 0.31 mm, its volume mass thus being 64.51 kg/m3. The nonwoven fabric is treated with hydrophilic lubrication, for example with lubricating agent Silastol PHP 90 from the company
Schill&Seilacher, in the amount of 0.40 % by weight of the material.
To reinforce it, a raster calender was used provided with a roller with U 3343B pattern and the applied technological characteristics were as follows:
Calender rollers temperature (smooth roller/embossed roller): 154/163 0C
Pressure of both rollers: 75 N/mm
Achieved characteristics of the nonwoven fabric:
Characteristic: measurement method units value Longitudinal tensile strength EN 29073 T3 N/50mm 42.3
Transversal tensile strength EN 29073 T3 N/50mm 23.2
Longitudinal elongation at break EN 29073 T3 % 82.3
Transversal elongation at break EN 29073 T3 % 86.3
Bending stiffness 1ST 90.3.2001 mN 269.0 Liquid strike-through time EDANA 150.5-02 S 2.49
Run-off WSP 80.9 (05) g 0.00
Example 7
The nonwoven fabric is made from polypropylene and polyethylene filaments in the form of core/sheath in the ratio of 70 % of polypropylene and 30 % of polyethylene of a fineness of 1.5 den. Its basis weight is 12 g/m and its thickness is 0.17 mm, its volume mass thus being 70.58 kg/m . To reinforce it, a raster calender was used provided with a roller with U 3343B pattern and the applied technological characteristics were as follows:
Calender rollers temperature (smooth roller/embossed roller): 132/136 0C Pressure of both rollers: 62 N/mm
Achieved characteristics of the non woven fabric: Characteristic: measurement method units value
Longitudinal tensile strength EN 29073 T3 N/50mm 20.0 Transversal tensile strength EN 29073 T3 N/50mm 6.0 Longitudinal elongation at break EN 29073 T3 % 50.5 Transversal elongation at break EN 29073 T3 % 80.7 Bending stiffness 1ST 90.3.2001 mN 101.6
Example 8 The nonwoven fabric is made from polypropylene and polyethylene filaments in the form of core/sheath in the ratio of 70 % of polypropylene and 30 % of polyethylene of a fineness of 1.5 den Its basis weight is 12 g/m and its thickness is 0.17 mm, its volume mass thus being 70.58 kg/m .
The nonwoven fabric is treated with hydrophilic lubrication, for example with lubricating agent Silastol PHP 90 from the company Schill&Seilacher, in the amount of 0.40 % by weight of the material.
To reinforce it, a raster calender was used provided with a roller with U 3343B pattern and the applied technological characteristics were as follows: Calender rollers temperature (smooth roller/embossed roller): 132/136 0C Pressure of both rollers: 62 N/mm Achieved characteristics of the nonwoven fabric: Characteristic: measurement method units value
Longitudinal tensile strength EN 29073 T3 N/50mm 20.0
Transversal tensile strength EN 29073 T3 N/50mm 6.0
Longitudinal elongation at break EN 29073 T3 % 50.5 Transversal elongation at break EN 29073 T3 % 80.7 Bending stiffness 1ST 90.3.2001 mN 101.6
Liquid strike-through time EDANA 150.5-02 S 2.09
Run-off WSP 80.9 (05) 2 0.00
Example 9
The nonwoven fabric is made from polypropylene and polyethylene filaments in the form of core/sheath in the ratio of 70 % of polypropylene and 30% of polyethylene of a fineness of 1.5 den. Its basis weight is 14 g/m2 and its thickness is 0.18 mm, its volume mass thus being 77.77 kg/m3. To reinforce it, a raster calender was used provided with a roller with U 3343B pattern and the applied technological characteristics were as follows:
Calender rollers temperature (smooth roller/embossed roller): 134/138 0C
Pressure of both rollers: 63 N/mm Achieved characteristics of the nonwoven fabric:
Characteristic: measurement method units value
Longitudinal tensile strength EN 29073 T3 N/50mm 26.8
Transversal tensile strength EN 29073 T3 N/50mm 1.4
Longitudinal elongation at break EN 29073 T3 % 25.2 Transversal elongation at break EN 29073 T3 % 30.2
Bending stiffness 1ST 90.3.2001 mN 146.6 Example 10
The nonwoven fabric is made from polypropylene and polyethylene filaments in the form of core/sheath in the ratio of 70 % of polypropylene and 30 % of polyethylene of a fineness of 1.5 den. Its basis weight is 14 g/m and its thickness is 0.18 mm, its volume mass thus being 77.77 kg/m .
The nonwoven fabric is treated with hydrophilic lubricating agent
Silastol PHP 90 from the company Schill&Seilacher, in the amount of 0.40
% by weight of the material.
To reinforce it, a raster calender was used provided with a roller with U 3343 B pattern and the applied technological characteristics were as follows:
Calender rollers temperature (smooth roller/embossed roller): 134/138 0C
Pressure of both rollers: 63 N/mm
Achieved characteristics of the nonwoven fabric: Characteristic: measurement method units value
Longitudinal tensile strength EN 29073 T3 N/50mm 26.8
Transversal tensile strength EN 29073 T3 N/50mm 1.4
Longitudinal elongation at break EN 29073 T3 % 25.2
Transversal elongation at break EN 29073 T3 % 30.2 Bending stiffness 1ST 90.3.2001 mN 146.6
Liquid strike-through time EDANA 150.5-02 sS 1.98
Run-off WSP 80.9 (05) g 2 0.00
Example 11 The nonwoven fabric is made from polypropylene and polyethylene filaments in the form of core/sheath in the ratio of 70 % of polypropylene and 30 % of polyethylene of a fineness of 1.5 den. Its basis weight is 17 g/m2 and its thickness is 0.18 mm, its volume mass thus being 9 kg/m3. To reinforce it, a raster calender was used provided with a roller with U 3343B pattern and the applied technological characteristics were as follows:
Calender rollers temperature (smooth roller/embossed roller): 146/148 0C Pressure of both rollers: 73 N/mm
Achieved characteristics of the nonwoven fabric: Characteristic: measurement method units value
Longitudinal tensile strength EN 29073 T3 N/50mm 26.2 Transversal tensile strength EN 29073 T3 N/50mm 10.6 Longitudinal elongation at break EN 29073 T3 % 65.5 Transversal elongation at break EN 29073 T3 % 96.5 Bending stiffness 1ST 90.3.2001 mN 153.4
Example 12 The nonwoven fabric is made from polypropylene and polyethylene filaments in the form of core/sheath in the ratio of 70 % of polypropylene and 30 % of polyethylene of a fineness of 1.5 den. Its basis weight is 17 g/m and its thickness is 0.18 mm, its volume mass thus being 9 kg/m .
The nonwoven fabric is treated with hydrophilic lubricating agent Silastol PHP 90 from the company Schill&Seilacher, in the amount of 0.40 % by weight of the material.
To reinforce it, a raster calender was used provided with a roller with U 3343B pattern and the applied technological characteristics were as follows: Calender rollers temperature (smooth roller/embossed roller): 146/148 0C Pressure of both rollers: 73 N/mm Achieved characteristics of the nonwoven fabric: Characteristic: measurement method uunniittss value
Longitudinal tensile strength EN 29073 T3 N/50mm 26.2 Transversal tensile strength EN 29073 T3 N/50mm 10.6 Longitudinal elongation at break EN 29073 T3 % 65.5 Transversal elongation at break EN 29073 T3 % 96.5 Bending stiffness 1ST 90.3.2001 HiN 153.4
Liquid strike-through time EDANA 150.5-02 S 2.03
Run-off WSP 80.9 (05) g 0.00
Example 13
The nonwoven fabric is made from polypropylene and polyethylene filaments in the form of core/sheath in the ratio of 70 % of polypropylene and 30 % of polyethylene of a fineness of 1.5 den Its basis weight is 20 g/m2 and its thickness is 0.25 mm, its volume mass thus being 80.00 kg/m3. To reinforce it, a raster calender was used provided with a roller with U 3343 B pattern and the applied technological characteristics were as follows:
Calender rollers temperature (smooth roller/embossed roller): 134/138 0C Pressure of both rollers: 67 N/mm Achieved characteristics of the nonwoven fabric:
Characteristic: measurement method units value
Longitudinal tensile strength EN 29073 T3 N/50mm 31.7 Transversal tensile strength EN 29073 T3 N/50mm 14.1 Longitudinal elongation at break EN 29073 T3 % 74.7 Transversal elongation at break EN 29073 T3 % 128.0 Bending stiffness 1ST 90.3.2001 mN 174.8 Example 14
The nonwoven fabric is made from polypropylene and polyethylene filaments in the form of core/sheath in the ratio of 70 % of polypropylene and 30 % of polyethylene of a fineness of 1.5 den. Its basis weight is 20 g/m and its thickness is 0.25 mm, its volume mass thus being 80.00 kg/m .
The nonwoven fabric is treated with hydrophilic lubrication, for example with lubricating agent Silastol PHP 90 from the company
Schill&Seilacher, in the amount of 0.40 % by weight of the material.
To reinforce it, a raster calender was used provided with a roller with U 3343 B pattern and the applied technological characteristics were as follows:
Calender rollers temperature (smooth roller/embossed roller): 134/138 0C
Pressure of both rollers: 67 N/mm
Achieved characteristics of the nonwoven fabric: Characteristic: measurement method uunniittss value
Longitudinal tensile strength EN 29073 T3 N/50mm 31.7
Transversal tensile strength EN 29073 T3 N/50mm 14.1
Longitudinal elongation at break EN 29073 T3 % 74.7
Transversal elongation at break EN 29073 T3 % 128.0 Bending stiffness 1ST 90.3.2001 mN 174.8
Liquid strike-through time EDANA 150.5-02 S 2.21
Run-off WSP 80.9 (05) g 0.00
Example 15 The nonwoven fabric is made from polypropylene filaments of a fineness of 0.5 den. Its basis weight is 12 g/m2 and its thickness is 0.17 mm, its volume mass thus being 70.58 kg/m3. To reinforce it, a raster calender was used provided with a roller with U 3343B pattern and the applied technological characteristics were as follows:
Calender rollers temperature (smooth roller/embossed roller): 147/155 0C Pressure of both rollers: 69 N/rnm
Achieved characteristics of the nonwoven fabric: Characteristic: measurement method units value
Longitudinal tensile strength EN 29073 T3 N/50mm 36.5
Transversal tensile strength EN 29073 T3 N/50mm 2.2 Longitudinal elongation at break EN 29073 T3 % 33.3
Transversal elongation at break EN 29073 T3 % 40.8
Bending stiffness 1ST 90.3.2001 mN 185.6
Example 16 The nonwoven fabric is made from polypropylene filaments of a fineness of 0.5 den. Its basis weight is 12 g/m and its thickness is 0.17 mm, its volume mass thus being 70.58 kg/m3.
The nonwoven fabric is treated with hydrophilic lubrication, for example with lubricating agent Silastol PHP 90 from the company Schill&Seilacher, in the amount of 0.40 % by weight of the material.
To reinforce it, a raster calender was used provided with a roller with U 3343 B pattern and the applied technological characteristics were as follows:
Calender rollers temperature (smooth roller/embossed roller): 147/155 0C Pressure of both rollers: 69 N/mm
Achieved characteristics of the nonwoven fabric:
Characteristic: measurement method units value
Longitudinal tensile strength EN 29073 T3 N/50mm 36.5 Transversal tensile strength EN 29073 T3 J/50mm 2.2 Longitudinal elongation at break EN 29073 T3 % 33.3 Transversal elongation at break EN 29073 T3 % 40.8 Bending stiffness 1ST 90.3.2001 mN 185.6
Liquid strike-through time EDANA 150.5-02 S 2.63
Run-off WSP 80.9 (05) g 0.00
Example 17
The nonwoven fabric is made from polypropylene filaments of a fineness of 1.5 den. Its basis weight is 14 g/m2 and its thickness is 0.19 mm, its volume mass thus being 73.68 kg/m3.
To reinforce it, a raster calender was used provided with a roller with U 3343B pattern and the applied technological characteristics were as follows: Calender rollers temperature (smooth roller/embossed roller) : 151/156 °C
Pressure of both rollers: 70 N/mm
Achieved characteristics of the nonwoven fabric:
Characteristic: measurement method units value
Longitudinal tensile strength EN 29073 T3 N/50mm 43.0 Transversal tensile strength EN 29073 T3 N/50mm 20.7
Longitudinal elongation at break EN 29073 T3 % 67.8
Transversal elongation at break EN 29073 T3 % 73.9
Bending stiffness 1ST 90.3.2001 mN 210.0
Example 18
The nonwoven fabric is made from polypropylene filaments of a fineness of 1.5 den. Its basis weight is 14 g/m and its thickness is 0.19 mm, its volume mass thus being 73.68 kg/m3. The nonwoven fabric is treated with hydrophilic lubricating agent
Silastol PHP 90 from the company Schill&Seilacher, in the amount of 0.40
% by weight of the material.
To reinforce it, a raster calender was used provided with a roller with U 3343B pattern and the applied technological characteristics were as follows:
Calender rollers temperature (smooth roller/embossed roller): 151/156 0C
Pressure of both rollers: 70 N/mm
Achieved characteristics of the nonwoven fabric: Characteristic: measurement method uunniittss value
Longitudinal tensile strength EN 29073 T3 N/50mm 43.0
Transversal tensile strength EN 29073 T3 N/50mm 20.7
Longitudinal elongation at break EN 29073 T3 % 67.8
Transversal elongation at break EN 29073 T3 % 73.9 Bending stiffness 1ST 90.3.2001 mN 210.0
Liquid strike-through time EDANA 150.5-02 S 2.90
Run-off WSP 80.9 (05) g 0.00
Example 19 The nonwoven fabric is made from polypropylene filaments of a fineness of 1.5 den. Its basis weight is 17 g/m2 and its thickness is 0.285 mm, its volume mass thus being 59.64 kg/m3.
To reinforce it, a raster calender was used provided with a roller with U 3343B pattern and the applied technological characteristics were as follows:
Calender rollers temperature (smooth roller/embossed roller): 153/1570C
Pressure of both rollers: 72 N/mm
Achieved characteristics of the nonwoven fabric: Characteristic: measurement method units value
Longitudinal tensile strength EN 29073 T3 N/50mm 55.0
Transversal tensile strength EN 29073 T3 N/50mm 24.5
Longitudinal elongation at break EN 29073 T3 % 78.6 Transversal elongation at break EN 29073 T3 % 71.9
Bending stiffness 1ST 90.3.2001 mN 418.0
Example 20
The nonwoven fabric is made from polypropylene filaments of a fineness of 1.5 den. Its basis weight is 17 g/m2 and its thickness is 0.285 mm, its volume mass thus being 59.64 kg/m3.
The nonwoven fabric is treated with hydrophilic lubrication, for example with lubricating agent Silastol PHP 90 from the company
Schill&Seilacher, in the amount of 0.40 % by weight of the material. To reinforce it, a raster calender was used provided with a roller with U 3343B pattern and the applied technological characteristics were as follows:
Calender rollers temperature (smooth roller/embossed roller): 153/1570C
Pressure of both rollers: 72 N/mm Achieved characteristics of the nonwoven fabric:
Characteristic: measurement method uunniittss value
Longitudinal tensile strength EN 29073 T3 N/50mm 55.0
Transversal tensile strength EN 29073 T3 N/50mm 24.5
Longitudinal elongation at break EN 29073 T3 % 78.6 Transversal elongation at break EN 29073 T3 % 71.9
Bending stiffness 1ST 90.3.2001 mN 418.0
Liquid strike-through time EDANA 150.5-02 S 3.21
Run-off WSP 80.9 (05) g 0.0 Example 21
The nonwoven fabric is made from polypropylene filaments of a fineness of 1.5 den. Its basis weight is 17 g/m2 and its thickness is 0.28 mm, its volume mass thus being 60.71 kg/m3.
To reinforce it, a raster calender was used provided with a roller with U 3343 B pattern and the applied technological characteristics were as follows:
Calender rollers temperature (smooth roller/embossed roller): 142/147 0C Pressure of both rollers: 73 N/mm
Achieved characteristics of the nonwoven fabric:
Characteristic: measurement met 1 units value
Longitudinal tensile strength EN 29073 T3 N/50mm 34.7
Transversal tensile strength EN 29073 T3 N/50mm 18.0 Longitudinal elongation at break EN 29073 T3 % 82.3
Transversal elongation at break EN 29073 T3 % 83.8
Bending stiffness 1ST 90.3.2001 mN 202.2
Tear strength transversal PH 260/007 N 22,3
Tear strength longitudinal PH 260/007 N 20.9 where PH designates the measuring standards by the firm Paul Hartmann This nonwoven fabric is designed to be used in the final product, for example in diapers or incontinence pads as the back-sheet. At the same time, it is used as a loop counter-fastener for the current hook-type fastening system. Example 22
The nonwoven fabric is made from polypropylene filaments of a fineness of 1.5 den. Its basis weight is 25 g/m2 and its thickness is 0.21 mm, its volume mass thus being 119.1 kg/m3. To reinforce it, a raster calender was used provided with a roller with U 3343B pattern and the applied technological characteristics were as follows:
Calender rollers temperature (smooth roller/embossed roller): 168/164 0C
Pressure of both rollers: 70 N/mm At the same time as this now- woven fabric, a nonwoven fabric made of polypropylene filaments of fineness higher than 1.5 den is being produced on another production line. Its basis weight is 25 g/m2 and its thickness is 0.27 mm, its volume mass thus being 92.6 kg/m3.
To reinforce it, a raster calender was used provided with a roller with the classical U 2888 pattern and the applied technological characteristics were as follows:
Calender rollers temperature (smooth roller/embossed roller): 170/174 0C
Pressure of both rollers: 70 N/mm
Achieved characteristics of the nonwoven fabric: Characteristic: measurement method units value bulky classical
Longitudinal tensile strength EN 29073 T3 N/50mm 55.0 59,0
Transversal tensile strength EN 29073 T3 N/50mm 27.0 39,0
Longitudinal elongation at break EN 29073 T3 % 50.0 77,0 Transversal elongation at break EN 29073 T3 % 65.0 82,0
Tear strength PH 260/007 N 35,0 19,0 Comparing the above results, namely the "tear strength", it is evident that the values of the bulkier nonwoven fabric are in this characteristic higher, i.e. this nonwoven fabric can serve much better as a counter-fastener to the current hook-type fastening system than the nonwoven fabric reinforced by means of the classical pattern.

Claims

1. A non woven fabric of a basis weight of 10 to 30 g/m2 prepared from endless filaments of 0.5 to 3.5 den of fineness by spun-melt technology primarily for producing hygienic products, characterized in that it consists of endless poly olefin filaments and its volume mass is in the range of 40 to 80 kg/m , its basis weight in the range of 10 to 30 g/m and its thickness in the range of 0.15 to 0.80 mm, being bonded on a part of its surface in the range of 10 to 16 % of its total surface area.
2. A nonwoven fabric according to claim 1, characterized in that it is thermal bonded on a part of its surface, which constitutes 14 % of its total surface area.
3. A nonwoven fabric according to claim 1, characterized in that it is treated with hydrophilic lubrication.
4. A nonwoven fabric according to claim 1, characterized in that the thermal bonding is accomplished in the form of longitudinal spots distributed in the shape of a raster, where each adjacent line is offset with respect to both adjacent lines by a half of the longitudinal pitch of the raster, the pitch of the individual bonding spots in the longitudinal direction is equal to 2 mm and in the transversal direction to 5.58 mm, the width of the bonding spot is 0.4 mm and its length is equal to 3.99 mm, the number of points per square cm is 9 points, the bonding area v is 1.562 mm2, the raster depth is 0.7 mm.
5. A nonwoven fabric according to claim 1, characterized in that the endless polyolefin filaments are monomeric.
6. A nonwoven fabric according to claim 1, characterized in that the endless polyolefin filaments are bicomponent filaments.
7. Method for producing the nonwoven fabric according to any of the preceeding claims, characterized in that a basic system of endless filaments of 0.5 to 3.5 den of fineness is created by means of the spun-melt technology and it is stochastically deposited on a moving belt, its basis weight being 10 to 30 g/m , and then it passes through a calender system consisting of a smooth roller and an embossed roller.
8. The method for producing the nonwoven fabric according to claim 7, characterized in that the surface of the embossed roller has a temperature in the range from 110 to 1900C and the pressure of the embossed roller on the smooth roller is in the range 50 to 100 N/mm.
9. The method for producing the nonwoven fabric according to claim 7, characterized in that the endless filaments are created by monopolymeric polyolefin endless filaments.
10. The use of the nonwoven fabric according to any of the claims 1, 5, 6 and 7, characterized in that it is used as a back sheet in the final hygienic product and as a loop-type counter-fastener in the "hook-loop" fastening system.
PCT/CZ2008/000093 2007-08-16 2008-08-18 Nonwoven fabric and method for the production thereof WO2009021473A1 (en)

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US12/673,681 US20100305543A1 (en) 2007-08-16 2008-08-18 Nonwoven fabric and method for the production thereof
EP08801030A EP2188428A1 (en) 2007-08-16 2008-08-18 Nonwoven fabric and method for the production thereof
BRPI0815469 BRPI0815469A2 (en) 2007-08-16 2008-08-18 Nonwoven and method for producing it
MX2010001759A MX2010001759A (en) 2007-08-16 2008-08-18 Nonwoven fabric and method for the production thereof.

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CZ20070554A CZ2007554A3 (en) 2007-08-16 2007-08-16 Non-woven fabric and process for producing thereof

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EP (1) EP2188428A1 (en)
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WO2012042055A1 (en) 2010-10-01 2012-04-05 Concepts For Success (C4S) Forming of consolidation regions in a web and a web comprising such regions
WO2012134988A1 (en) 2011-03-25 2012-10-04 The Procter & Gamble Company Article with nonwoven web component formed with loft-enhancing calender bond shapes and patterns
WO2012130414A1 (en) 2011-03-25 2012-10-04 Pegas Nonwovens S.R.O. Nonwoven webs with enhanced loft and process for forming such webs
WO2014022362A1 (en) 2012-08-01 2014-02-06 The Procter & Gamble Company Diaper structure with enhanced tactile softness attributes
WO2014044235A1 (en) * 2012-09-21 2014-03-27 Pegas Nonwovens S.R.O. Nonwoven webs with enhanced softness and process for forming such webs
WO2014047160A1 (en) 2012-09-21 2014-03-27 The Procter & Gamble Company Article with soft nonwoven layer
WO2015061877A1 (en) * 2013-10-29 2015-05-07 Braskem S.A. System and method for measuring out a polymer and first solvent mixture, device, system and method for extracting a solvent from at least one polymer strand, system and method for mechanically pre-recovering at least one liquid from at least one polymer strand, and a continuous system and method for the production of at least one polymer strand
US9408761B2 (en) 2011-03-25 2016-08-09 The Procter & Gamble Company Article with nonwoven web component formed with loft-enhancing calendar bond shapes and patterns
WO2017190717A1 (en) 2016-05-02 2017-11-09 Pegas Nonwovens S.R.O. Nonwoven web comprising thermally fusible fibers and bonding impressions forming a pattern
WO2019132789A1 (en) * 2017-12-27 2019-07-04 Hayat Kimya Sanayi Anonim Sirketi A spunbond nonwoven frontal tape
US11999150B2 (en) 2019-05-03 2024-06-04 The Procter & Gamble Company Nonwoven webs with one or more repeat units

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JP6509506B2 (en) * 2014-07-09 2019-05-08 スリーエム イノベイティブ プロパティズ カンパニー Loop members for surface fasteners and sanitary products
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WO2012042055A1 (en) 2010-10-01 2012-04-05 Concepts For Success (C4S) Forming of consolidation regions in a web and a web comprising such regions
US9254585B2 (en) 2010-10-01 2016-02-09 Concepts For Success (C4S) Forming of consolidation regions in a web and a web comprising such regions
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WO2012130414A1 (en) 2011-03-25 2012-10-04 Pegas Nonwovens S.R.O. Nonwoven webs with enhanced loft and process for forming such webs
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US9408761B2 (en) 2011-03-25 2016-08-09 The Procter & Gamble Company Article with nonwoven web component formed with loft-enhancing calendar bond shapes and patterns
WO2014022362A1 (en) 2012-08-01 2014-02-06 The Procter & Gamble Company Diaper structure with enhanced tactile softness attributes
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JP2017176849A (en) * 2012-09-21 2017-10-05 ザ プロクター アンド ギャンブル カンパニー Article with soft nonwoven layer
WO2014044235A1 (en) * 2012-09-21 2014-03-27 Pegas Nonwovens S.R.O. Nonwoven webs with enhanced softness and process for forming such webs
WO2015061877A1 (en) * 2013-10-29 2015-05-07 Braskem S.A. System and method for measuring out a polymer and first solvent mixture, device, system and method for extracting a solvent from at least one polymer strand, system and method for mechanically pre-recovering at least one liquid from at least one polymer strand, and a continuous system and method for the production of at least one polymer strand
WO2017190717A1 (en) 2016-05-02 2017-11-09 Pegas Nonwovens S.R.O. Nonwoven web comprising thermally fusible fibers and bonding impressions forming a pattern
WO2019132789A1 (en) * 2017-12-27 2019-07-04 Hayat Kimya Sanayi Anonim Sirketi A spunbond nonwoven frontal tape
US11999150B2 (en) 2019-05-03 2024-06-04 The Procter & Gamble Company Nonwoven webs with one or more repeat units
US12043019B2 (en) 2019-05-03 2024-07-23 The Procter & Gamble Company Nonwoven webs with one or more repeat units

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BRPI0815469A2 (en) 2015-04-07
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RU2010107735A (en) 2011-09-10
MX2010001759A (en) 2010-04-30

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