EP0072691B1 - Mittels einer trockenen Druckbindung gebundenes nichtgewebtes Flächengebilde - Google Patents

Mittels einer trockenen Druckbindung gebundenes nichtgewebtes Flächengebilde Download PDF

Info

Publication number
EP0072691B1
EP0072691B1 EP82304306A EP82304306A EP0072691B1 EP 0072691 B1 EP0072691 B1 EP 0072691B1 EP 82304306 A EP82304306 A EP 82304306A EP 82304306 A EP82304306 A EP 82304306A EP 0072691 B1 EP0072691 B1 EP 0072691B1
Authority
EP
European Patent Office
Prior art keywords
web
binder
binder composition
areas
dried
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.)
Expired
Application number
EP82304306A
Other languages
English (en)
French (fr)
Other versions
EP0072691A3 (en
EP0072691A2 (de
Inventor
John Wilson Kennette
Conrad Constinine Buyofsky
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.)
Chicopee Inc
Original Assignee
Chicopee Inc
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 Chicopee Inc filed Critical Chicopee Inc
Publication of EP0072691A2 publication Critical patent/EP0072691A2/de
Publication of EP0072691A3 publication Critical patent/EP0072691A3/en
Application granted granted Critical
Publication of EP0072691B1 publication Critical patent/EP0072691B1/de
Expired legal-status Critical Current

Links

Images

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
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
    • 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
    • D04H1/58—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D04H1/66—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions at spaced points or locations

Definitions

  • the invention relates to a process for dry print bonding nonwoven fabrics to produce a novel nonwoven fabric product having an excellent combination of strength, softness, and durability.
  • the print bonding of nonwoven fabrics is a mature commercial technology.
  • a carded or random laid web of staple-length fibers is first wetted, is optionally subjected to fluid rearrangement, is then print bonded with an aqueous resin binder composition, and is then subjected to elevated temperature to dry the fibrous web and cure the binder.
  • Early disclosures of such print bonding of nonwoven fabrics include Joshua Goldman, U.S. Patent No. 2,039,312, Esther Goldman, U.S. Patent No. 2,545,952, Drelich et al., U.S. Patent Nos. 3,009,822 and 3,009,823, and Ness et al., U.S. Patent No. 2,705,688.
  • binder tends to diffuse or migrate before it cures or hardens. Because of this, a certain degree of softness, drape, and hand is lost, and harshness, stiffness, and boardiness are slightly increased.
  • One way of controlling the migration of binder is to employ binder compositions that rapidly coagulate or precipitate when deposited onto the wet web.
  • binder compositions that rapidly coagulate or precipitate when deposited onto the wet web.
  • Various ways of accomplishing this have been disclosed by Arthur Drelich and coworkers, e.g., in U.S. Patent Nos. 4,084,033, 3,865,775, 3,720,562, 3,535,142, 3,536,518, and Re. 28,957. These techniques are especially useful in minimizing lateral spread of binder.
  • Migration control techniques are preferably employed so as to have the binder penetrate all the way through the web. In this respect, see Example XIII and Col. 21, lines 45 et seq. of No. 3,720,562 and Example XX and Col. 11, lines 61 et seq. of No.
  • print bonding of nonwoven fabrics has been carried out commercially mostly on carded or random laid webs, either as formed or after fluid rearrangement of the type contemplated by, for example, Kalwaites in U.S. Patent Nos. 2,862,251 and 3,033,721. More recently, print bonding and/or saturation bonding has been carried out on lightly entangled nonwoven webs using fine, high pressure, columnar jets of water to lightly entangle the fibers. Such webs are first lightly entangled and are then print bonded and/or saturation bonded in one continuous operation. They are wet when the binder is applied. See Brooks, published British Patent Application GB 2,045,825A, November 5, 1980.
  • one result of carrying out the above process which includes printing binder onto a wet fibrous web, is that the binder tends to diffuse or migrate before it cures or hardens. Because of this, a certain degree of softness, drape, and hand is lost, and harshness, stiffness and boardiness are slightly increased.
  • the present invention is characterised in that, in the process set out above, after the water jet entangling treatment and prior to the print bonding treatment, the web is dried.
  • the invention therefore provides a process wherein fibrous webs composed of staple fibers are first entangled, then dried, and then print bonded to produce novel nonwoven fabrics having an excellent combination of softness, strength, and wash durability. It is believed that the beneficial combination of properties is a result of the drying step, which enables the binder to remain concentrated in relatively limited spaces with an absolute minimum of diffusion or migration.
  • a carded or random laid web 10 of staple fibers is passed onto a liquid pervious support member, such as an endless woven belt 12.
  • the belt 12 carries the web of fibers 10 under a series of high pressure, fine, essentially columnar jets of water 14.
  • the high pressure water is supplied from a manifold 16.
  • the jets 14 are arranged in rows disposed transversely across the path of travel of the belt 12.
  • there is a vacuum means 15 pulling a vacuum of e.g. 169 to 338 mBar (5 to 10 inches of mercury), beneath the belt 12, with a vacuum slot positioned directly under each row of jets 14.
  • the fibers in the web 10 are rearranged and entangled by the jets 14 as the liquid from the jets 14 passes through the fibrous web 10 and then through the belt 12.
  • the fabric 18 is carried by the belt 12 over a vacuum dewatering station 20, and then proceeds to a series of drying cans 22.
  • Evans in U.S. Patent No. 3,485,706, describes a process and apparatus for rearranging/entangling fibrous webs by carrying such webs on a woven belt under a series of high pressure, fine, columnar jets of liquid. Apparatus of the general type disclosed by Evans can be used in the process of this invention, although typically the degree of entanglement contemplated by this invention is less than that generally preferred by Evans.
  • the degree of fiber entanglement contemplated by this invention is preferably that obtained by the use of jet pressures of from 13.8 to 48.3 Bar (200 to 700 psi), and up to about 20 to 25 rows of orifices, with the orifices being spaced such that there are 11.8 to 19.7 per linear centimeter (30 to 50 per linear inch).
  • the orifices are usually 0.127 to 0.178 mm (0.005 to 0.007 inch) in diameter.
  • the web is usually positioned 1.27 to 3.81 cm (1/2 to 1-1/2 inches) below the orifices. With web speeds of from 7.3 to 91.44 metres (8 to 100 yards) per minute, fibrous webs of from 17 to 170 grams per square meter (1/2 to 5 ounces per square yard) are conveniently processed.
  • the dried web 23 proceeds to a rotogravure print bonding station 25 where an aqueous resin binder composition is applied to the dried web in an intermittent pattern.
  • the dried web will ordinarily contain less than 30 weight percent water, based on fiber weight (30 weight percent is about the equilibrium moisture content of a rayon web in an atmosphere having 100% relative humidity).
  • the print bonding station 25 includes an adjustable upper rotatable back-up roll 24 mounted on a rotatable shaft 26, an adjustably controlled pressure contact with a lower rotatable engraved print roll or applicator roll 28 mounted on a rotatable shaft 30.
  • a lowermost pick-up roll 32 mounted on a rotatable shaft 34.
  • the pick-up roll 32 is partially immersed in a bath 36 of a resin binder composition 38.
  • the pick-up roll 32 picks up resin binder composition 38 and transfers it to the applicator roll 28, which applies it to the dried fibrous web 23 as it passes through the nip between the applicator roll 28 and the adjustable back-up roll 24. All the rolls are adjustable in order to be able to control the pressure at said nip.
  • a doctor blade 33 is employed to prevent excessive build up of resin binder composition 38 on the applicator roll 28, i.e., to confine the binder composition 38 substantially to the grooves of the engraved pattern on the applicator roll 28 as the roll 28 contacts the web 23.
  • the binder 38 is applied to the web 23 in an intermittent pattern corresponding to the engraving on the applicator roll 28.
  • the printed web 39 is then subjected to elevated temperature, as by passing around a set of drying cans 40, to dry or cure the resin binder, and the web 41 containing the dried or cured binder is then collected, as on a conventional wind-up 42.
  • the resin binder composition can be any one of the conventional aqueous latex compositions, such as acrylic latexes, polyvinyl acetate latexes, ethylene-vinyl acetate latexes or carboxylated styrene-butadiene rubber latexes.
  • the invention can use a wide variety of fibers, including rayon, polyester, nylon, polypropylene, bicomponent fibers and cotton, including mixtures thereof.
  • Staple fibers are usually used, e.g. fibers having lengths of at least 1.27 cm (1/2-inch) and up to 7.62 cm three inches.
  • the web was passed under a water weir to wet the fiber, and was then carried at a speed of 9.1 m (30 feet) per minute under 4 orifice strips, each of which contained a row of holes, 19.7 holes per centimeter (50 per inch), of 0.127 mm (0.005 inch) diameter. Water was jetted through the holes in the orifice strips at 41.4 Bar (600 psi) and 60°C (140°F).
  • the web was dewatered by passing over a vacuum slot, and then passed over two stacks of steam cans to dry it.
  • the stacks of steam cans were operated at 2.76 Bar (40 psi) and 5.52 Bar (80 psi) steam pressure, respectively.
  • the dried web was then run through a print station similar to the one shown in the Fig. 1, and the following binder formulation was printed on one side of the web:
  • the binder formulation had a viscosity of 1200 centipoises at room temperature 22°C (70°F), measured by a viscometer.
  • the printing roll had an engraved pattern of straight continuous 45° diagonal lines spaced 2.4 lines per centimeter (6 per inch). Each line was a groove 0.10 mm (0.004 inch) deep and 0.38 mm (0.015 inch) wide.
  • the back-up roll was rubber. The back-up roll was pressed against the printing roll by a pressure of 5.52 Bar (80 psig) i.e. sufficient pressure was used to insure that all of the binder formulation was transferred to the fibrous web. The speed through the printing station was 9.1 m (30 feet) per minute. The printed web was then passed over two sets of steam cans set at 2.76 and 5.52 Bar (40 and 80 psi) steam pressure, respectively.
  • Example 2 By a procedure analogous to that described in Example 1, the same base web was printed on both sides with the same printing roll. The same binder formulation was used, except that only 0.68 kg (1.5 pounds) of the hydroxyethylcellulose solution was employed. The binder formulation viscosity was therefore reduced to 280 centipoises. Total binder add-on was 7 weight percent, dry solids, based on total fabric weight (average of four samples; range 6.6 to 7.6 percent).
  • Avtex SN1913, 0.17 Tex (1.5 denier), 2.9 cm (1-1/8 inch) staple rayon fibers were processed through an opener/blender, and fed to a random air laying unit, which deposited a 61 grams per square meter (790 grains per square yard) ⁇ 25% web onto the same forming belt described in Example 1.
  • the web was then lightly entangled by the procedure described in Example 1, except that the line speed was 11 m (36 feet) per minute and the water in the jets was at 54°C (130°F).
  • the dried web was then printed on both sides by the following formulation:
  • the viscosity of this formulation was 1200 centiposes at room temperature.
  • the printing was done by the procedure described in Example 1, except that a diamond patterned printing roll was used, and the nip between the printing roll and the rubber back-up roll was gapped by wrapping 0.18 mm (0.007 inch) thick tape around the edges of the printing roll.
  • the diamond pattern was formed by two intersecting sets of straight continuous 45° diagonal grooves spaced 2.4 lines per centimeter (6 per inch). Each groove was 0.127 mm (0.005 inch) deep and 0.46 mm (0.018 inch) wide.
  • Total binder add-on was 9.5 weight percent, dry solids, based on total fabric weight (average of four samples; range 8.8 to 10.2 percent).
  • Example 3 Using the same base web described in Example 3, a fabric was produced by printing both sides of the web with the binder formulation described in Example 3. The diamond pattern printing roll described in Example 3 was used, but the printing roll and the backup roll were not gapped. Total binder add-on was 15.3 weight percent, dry solids, based on total fabric weight (average of four samples; range 14.2 to 16.7).
  • Table III also displayes, as a Control, typical physical properties exhibited by nonwoven fabrics made by the same procedure described in Example 1 except that the fabrics are wet print bonded on one side.
  • the webs typically contain about twice the fiber weight of water when they are rotogravure printed with binder. Although the webs are printed on one side only, the binder penetrates to the other side.
  • Wash durability-each cycle in the wash durability test is a complete agitated wash (for 10 minutes in hot water at 60°C (140°F), containing detergent), rinse (in warm water-38°C (100°F)), and spin cycle in a Maytag home washing machine containing an eight-pound load of laundry.
  • the fabric is considered to fail when it develops a hole anywhere in the fabric.
  • Two samples of each fabric are used, with the sample size being at least 46x46 cm (18x18 inches).
  • an accelerated test was used in order to save time. Instead of 10-minute agitated wash cycles, 2-hour, 4-hour, and 24-hour agitated wash cycles were used. The results reported in Table III are the equivalent in the standard 10-minute wash cycles.
  • Table III illustrate the unusual combination of strength, softness, and durability of the nonwoven fabrics made in accordance with the invention.
  • Figs. 2-5 cross-sections of the fabrics of Examples 1-4 are shown.
  • the binder is found in discrete areas 50 with very sharp boundaries between these areas and the areas that contain no binder. As can be seen in the photomacrographs, the binder is quite concentrated in the binder areas 50, and there is an absolute minimum of diffusion or migration of binder outside the binder areas 50.
  • the photomacrographs also clearly show the preferred mode of the invention wherein the binder areas 50 do not extend all the way from one surface of the fabric to the other, thereby leaving binder-free areas 52 in the center of the fabric adjacent to the binder areas 50.
  • One additional feature of the invention that can be seen in these photomacrographs is the occasional fiber 54 that extends in the direction generally perpendicular to the planes of the surfaces.
  • the binder formulation preferably has a viscosity of at least 300 centipoises at 22°C (72°F), to 2000 centipoises. At lower viscosities, e.g. below 150-200 cps, significant binder migration or diffusion can begin to occur.
  • the viscosity of the aqueous resin binder compositions can be increased by adding aqueous solutions of thickeners such as hydroxyethylcellulose, acrylic acid polymers, alginates, and the like.
  • Typical binder solids in the binder formulation is from about 25 to about 45 weight percent.
  • the discrete binder areas should be spaced apart a distance less than the average length of the fiber used in the web, and preferably less than one-half the length of the fiber. At the other end, the binder areas should be spaced far enough apart to maintain the discreteness or separateness of the binder areas.
  • the printing pattern can be in the form of straight lines, wavy lines, dashes, dots, annular circles ("donuts"), ovals, "torpedoes", intersecting lines (diamond pattern), and the like.
  • the fabric can be print bonded on one side only, but for optimum strength and durability is preferably printed on both sides.
  • binder add-on has not been found to be narrowly critical.
  • the binder add-on, on a dry binder solids basis will usually be within the range of from about 1/4 to about 25 weight percent, and preferably from about 1/2 to about 20 weight percent, based on fiber weight.
  • Rotogravure printing is one preferred mode of carrying out the invention.
  • other types of printing can be used. Examples include rotary screen printing, etc.
  • Figs. 6-9 are plan view photomacrographs of the fabrics of Examples 1-4, respectively. The photographs were taken at exactly 10.Ox to provide a convenient means for measuring the widths of the binder areas, for the purpose of determining the "spread” or increase in width over the recessed grooves in the rotogravure printing roll.
  • Table IV displays the measured widths of the binder areas (in the 10x photographs), the actual widths, the widths of the grooves in the printing rolls, and the increase in widths.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)

Claims (7)

1. Verfahren zum Herstellen eines Faservlieses, bestehend aus:
(a) Auflegen einer Schicht faserigen Ausgangsmaterials von Stapellänge, dessen einzelne Fasern mechanisch miteinander verbunden sind, jedoch unter aufgebrachten Flüssigkeitskräften bewegbar sind, auf einem flüssigkeitsdurchlässigen Tragorgan, um sie in einer bestimmten Richtung zu bewegen;
(b) dem Bewegen der abgestützten Schicht in der bestimmten Richtung durch eine Zone, in der Ströme von fenen, im wesentlichen säulenförmigen Wasserstrahlen direkt auf die Schicht gerichtet werden, um eine Bahn aus wirr liegenden Fasern zu erzeugen;
(c) dem Aufbringen einer wirksamen Menge einer wässrigen Harzträgerzusammensetzung auf die Bahn in einem unterbrochenen Muster; und
(d) dem Trocknen der wässrigen Harzträgerzusammensetzung nach ihrem Aufbringen auf die Bahn, dadurch gekennzeichnet daß: nach der Wasserstrahlbehandlung zum Verstricken der Faser und vor der Druckhaftbehandlung die Bahn getrocknet wird.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Bindemittelzusammensetzung auf die getrocknete Bahn aufgebracht wird, um gesonderte Bindemittelbereiche zu erzeugen, die sich in die Bahn in einem Abstand erstrecken, der kleiner als die Dicke der Bahn ist.
3. Verfahren nach den Ansprüchen 1 oder 2, dadurch gekennzeichnet, daß die wässrige Bindemittelzusammensetzung auf beide Oberflächen der getrockneten Bahn aufgebracht wird.
4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß die Bindemittelzusammensetzung auf jede Oberfläche der getrockneten Bahn aufgebracht wird, um gesonderte Bindemittelbereiche zu erzeugen, die sich in der Bahn in einem derartigen Abstand erstrecken, daß ein vom Bindemittel freier Bereich innerhalb der Bahn zwischen den gesonderten Bindemittelbereichen auf jeder Oberfläche erhalten bleibt.
5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das faserige Ausgangsmaterial Rayon oder eine Mischung von Rayon und Polyester ist.
6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die wässrige Harzträgerzusammensetzung eine Viskosität von mindestens etwa 150 Centipoise bei 22°C aufweist.
7. Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die wässrige Harzträgerzusammensetzung eine Viskosität von etwa 300 bis etwa 2000 Centipoise bei 22°C hat.
EP82304306A 1981-08-17 1982-08-16 Mittels einer trockenen Druckbindung gebundenes nichtgewebtes Flächengebilde Expired EP0072691B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US29374081A 1981-08-17 1981-08-17
US293740 1981-08-17

Publications (3)

Publication Number Publication Date
EP0072691A2 EP0072691A2 (de) 1983-02-23
EP0072691A3 EP0072691A3 (en) 1983-08-24
EP0072691B1 true EP0072691B1 (de) 1986-11-05

Family

ID=23130380

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82304306A Expired EP0072691B1 (de) 1981-08-17 1982-08-16 Mittels einer trockenen Druckbindung gebundenes nichtgewebtes Flächengebilde

Country Status (12)

Country Link
EP (1) EP0072691B1 (de)
AR (1) AR229277A1 (de)
AU (1) AU554761B2 (de)
BR (1) BR8204796A (de)
CA (1) CA1203680A (de)
DE (1) DE3274128D1 (de)
IE (1) IE53094B1 (de)
IN (1) IN159421B (de)
MX (1) MX156460A (de)
NZ (1) NZ201501A (de)
PH (1) PH19257A (de)
ZA (1) ZA825932B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017102866A1 (de) 2017-02-14 2018-08-16 Cmc Consumer Medical Care Gmbh Wegwerfbare absorbierende Flächenschutzmatte

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2065120C (en) * 1992-04-03 1997-08-05 Roger Boulanger Method and apparatus for manufacturing a non-woven fabric marked with a print
FR2861751B1 (fr) * 2003-10-31 2006-01-06 Rieter Perfojet Machine de production de nontisses de plusieurs qualites.
FR2861750B1 (fr) * 2003-10-31 2006-02-24 Rieter Perfojet Machine de production d'un nontisse fini.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3485706A (en) * 1968-01-18 1969-12-23 Du Pont Textile-like patterned nonwoven fabrics and their production
US3908058A (en) * 1974-01-16 1975-09-23 Johnson & Johnson Spot-bonded nonwoven fabrics and methods of making the same
GB2045825A (en) * 1979-02-15 1980-11-05 Chicopee Fluid jet entangled, bonded nonwoven fabric

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1421732A (fr) * 1963-12-24 1965-12-17 Johnson & Johnson Produit absorbant et son procédé de fabrication

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3485706A (en) * 1968-01-18 1969-12-23 Du Pont Textile-like patterned nonwoven fabrics and their production
US3908058A (en) * 1974-01-16 1975-09-23 Johnson & Johnson Spot-bonded nonwoven fabrics and methods of making the same
GB2045825A (en) * 1979-02-15 1980-11-05 Chicopee Fluid jet entangled, bonded nonwoven fabric

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017102866A1 (de) 2017-02-14 2018-08-16 Cmc Consumer Medical Care Gmbh Wegwerfbare absorbierende Flächenschutzmatte

Also Published As

Publication number Publication date
DE3274128D1 (en) 1986-12-11
ZA825932B (en) 1984-03-28
BR8204796A (pt) 1983-08-02
AR229277A1 (es) 1983-07-15
PH19257A (en) 1986-02-19
EP0072691A3 (en) 1983-08-24
AU554761B2 (en) 1986-09-04
IN159421B (de) 1987-05-16
IE53094B1 (en) 1988-06-08
NZ201501A (en) 1986-01-24
MX156460A (es) 1988-08-23
AU8718282A (en) 1983-02-24
IE821976L (en) 1983-02-17
CA1203680A (en) 1986-04-29
EP0072691A2 (de) 1983-02-23

Similar Documents

Publication Publication Date Title
US4623575A (en) Lightly entangled and dry printed nonwoven fabrics and methods for producing the same
US4612226A (en) Fabric having excellent wiping properties
EP0308320B1 (de) Fester Vliesstoff
US4465726A (en) Ribbed terry cloth-like nonwoven fabric and process and apparatus for making same
EP0556267B1 (de) Anlage und verfahren zur gewebeverbesserung mittels wasserstrahlbehandlung
US2698574A (en) Apparatus for bonding nonwoven webs
US4647490A (en) Cotton patterned fabric
US2545952A (en) Unwoven flexible fabric
EP0423619A1 (de) Wisch-Stoff und Verfahren zur Herstellung
US4016317A (en) Nonwoven fabric
RU2135660C1 (ru) Трикотажное нетканое полотно
US4021284A (en) Nonwoven fabric and method and apparatus for producing the same
CN1222596A (zh) 开孔的无纺布的制造方法
EP0373974A2 (de) Verfahren zur Herstellung eines hochsaugfähigen, nichtgewebten Stoffes
EP0084963B1 (de) Stoff mit ausgezeichneten Abwischeigenschaften
US20020023326A1 (en) Method of making nonwoven fabric for buffing applications
EP0128667A2 (de) Stoffbahnen mit einem oberflächigen Muster dekorativer oder aktiver Art
US3908058A (en) Spot-bonded nonwoven fabrics and methods of making the same
US3819469A (en) Stitched nonwoven webs
EP0072691B1 (de) Mittels einer trockenen Druckbindung gebundenes nichtgewebtes Flächengebilde
CA1143930A (en) Nonwoven fabric and method for producing the same
US3483601A (en) Process for making a non-woven fabric structure
US6701591B2 (en) Diaphanous nonwoven fabrics with improved abrasive performance
US3753844A (en) Compressively deformed cellulosic laminates with improved drape,bulk,and softness
CA1104001A (en) Methods and apparatus for producing dry-formed bonded nonwoven fabrics and products resulting therefrom

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): CH DE FR GB LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): CH DE FR GB LI NL SE

17P Request for examination filed

Effective date: 19840127

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB LI NL SE

REF Corresponds to:

Ref document number: 3274128

Country of ref document: DE

Date of ref document: 19861211

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19940817

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19940831

Year of fee payment: 13

EAL Se: european patent in force in sweden

Ref document number: 82304306.2

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19950817

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19960301

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19960301

EUG Se: european patent has lapsed

Ref document number: 82304306.2

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19990802

Year of fee payment: 18

Ref country code: DE

Payment date: 19990802

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19990803

Year of fee payment: 18

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000816

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20000816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010501

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20010815

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20020815

Ref country code: CH

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20020815

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL