US3317335A - Fibrous, non-woven sheet materials and the production thereof - Google Patents

Fibrous, non-woven sheet materials and the production thereof Download PDF

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US3317335A
US3317335A US34703864A US3317335A US 3317335 A US3317335 A US 3317335A US 34703864 A US34703864 A US 34703864A US 3317335 A US3317335 A US 3317335A
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fibres
batt
shrinkage
consolidation
batts
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Marrinan Henry James
Riseley Eric Ivan
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Imperial Chemical Industries Ltd
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Imperial Chemical Industries Ltd
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    • 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
    • D04H1/04—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres
    • D04H1/06—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres by treatment to produce shrinking, swelling, crimping or curling of fibres
    • 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
    • D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • 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
    • D04H1/482—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 in combination with shrinkage
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/75—Processes of uniting two or more fibers
    • 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
    • Y10T428/23907—Pile or nap type surface or component
    • Y10T428/2395—Nap type surface
    • 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.]
    • Y10T428/24058—Structurally defined web or sheet [e.g., overall dimension, etc.] including grain, strips, or filamentary elements in respective layers or components in angular relation
    • Y10T428/24124—Fibers
    • 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.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y10T428/24438—Artificial wood or leather grain surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/601—Nonwoven fabric has an elastic quality
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/682—Needled nonwoven fabric

Definitions

  • FIBROUS, NON'WOVEN SHEET MATERALS AND THE PRODUCTION THEREOF Filed Feb. 24, 1964 MM ATTORNEYG United States Patent O 3,317,335 FIBRUS, NGN-WOVEN SHEET MATERIALS AND THE PRODUCTION THEREOF Henry .lames Marrinan and Eric Ivan Riseley, Harrogate, England, assignors to Imperial Chemical Industries Limited, London, England, a corporation of Great Britain Filed Feb. 24, 1964, Ser. No. 347,038 Claims priority, application Great Britain, Mar. 4, 1963, 8,609/63; July 4, 1963, 26,530/63 11 Claims. (Cl. 117-11)
  • the present invention relates to fibrous, non-woven sheet materials and the production thereof.
  • non-Woven sheet materials by laying fibres in the form of a thick batt or mat, partially consolidating by means such as needle punching and following With a shrinkage treatment to complete the consolidation process.
  • the non-woven batt is usually prepared on a carding machine.
  • the majority of fibres in batts prepared in this way lie in planes parallel to the surface of the batt and exhibit a preferential fibre orientation in one direction which imparts to the batt a higher strength in this direction.
  • a plurality of layers in varying orientation are sometimes superimposed on the batt.
  • the thickness of the batt may vary within wide limits.
  • An alternative method for lthe preparation of nonwoven batts comprises entraining the individual fibres in a. gas stream and then collecting them on a sieve or a perforated drum in the form of a batt having substantially random orientation and uniform strength in all directions.
  • a suitable method for the initial consolidation of these batts is to pass them through a needle-loom whereby they receive from 100 to 1,000 needle punches per sq. cm.
  • the cohesion of the batts is thereby considerably increased since a minor proportion of the fibres is oriented through the thickness of the batt.
  • the needle-punched batts are often impregnated with an elastomeric or resinous agent to confer greater strength.
  • 787,900 is described a process for producing non-woven, felt-like material comprising forcing, as by needle punching, filaments of 4a batt or loose web comprising at least a major proportion of retractable, synthetic filaments, arranged in superimposed layers parallel to the faces of the batt or web, through or into the batt or web and thereafter, if desired, treating said batt or Web to retract said retract-able filaments.
  • British patent specification No. 908,613 discloses the use of 5 to 15% of polyolefine libres in the production of a fibrous fieece and a process in which the polyolefine libres are heated above their melting temperature to cause fusing of the fibres.
  • shrinkage force the property of shrinkage under restraint, hereinafter referred to as shrinkage force, is not proportional to free shrinkage.
  • Using libres of high shrinkage force -consolidated batts can be effectively produced using smaller proportions of shrinkable fibres or even using fibres of high shrinkage force which have a relatively low free shrinkage.
  • Certain isotactic polypropylene fibres have a very high shrinkage force and because of this they provide excellent consolidation when incorporated into fibrous batts, even in a minor proportion with other fibres and Without fusing the libres or heating them above their melting temperature.
  • a process for the production of fibrous, non-woven sheet materials by forming a batt of fibres and submitting said batt to a shrinkage treatment, is characterised in that the batt comprises at least 20% and less than 50% by weight of shrinkable synthetic organic fibres which are capable of shrinking by at least 10% of their original length when under a load of 0.005 gr-am per denier at C.
  • the batt comprises ⁇ at least 20% and less than 50% by weight of shrinkable synthetic organic fibres which are capable of shrinking by fat least 20% of their original length when under a load of 0.01 gram per denier at 150 C.
  • the present invention further provides a batt wherein the .shrinkable synthetic organic libres comprising the batt have an extension at break of at least 20% iafter heat treatment under zero load at a temperature above 90 C. and at least 5 C. below the melting point of the fibres.
  • the first stage of consolidation may be effected by known means, such ⁇ as needle-punching by passing the batt through a needle loom. This serves to orient a proportion of fibres in the batt through the thickness of the batt in contrast to the majority of fibres in the batt which take up positions in planes parallel to the surfaces of the batt.
  • the second stage of consolidation by shrinkage may be effected by heat treatment of the partially consolidated batt, preferably at a temperature below the melting point of the constituent fibres.
  • Fibres of high shrinkage force are exemplified by polypropylene fibres which are at least partially drawn, and which exhibit a shrinkage force many times, even as much as 30 times, greater than the maximum shrinkage force developed by the high shrinkage polyethylene Iterephthalate fibres previously used for batt consolidation.
  • Composition l were heated to various temperatures
  • the shrinkage fibres in batt I are the dravigi polypropylene bers, and in batt .II to VIII are the undrawn polyethylene terephthalate fibres.
  • the drawn polyethylene terephthalate fibre in batts I to VIII have a shrinkage in the free state of less than 6%.
  • Table l shows that lhigh shrinkage polyethylene terephthalate fibers have a much lower shrinkage force than high shrinkage polypropylene fibers. Under a load of 0.005 gnam per denier, polyethylene terephthalate ibres cease to contract altogether, whereas the polypropylene fibres still contract 10% at 130 C. and as much as 28% at 150 C.
  • batt I is made from a minor proportion of high shrinkage polypropylene fibres Ipossessing a high shrinkage force whereas batts II to VIII are made from a similar proportion of high shrinkage undrawn libres of polyethylene terephthalate.
  • Batts II to VII had the same composition and Table 3 gives the results of a number of experiments that have been carried out to compare high shrinkage undrawn polyethylene terephthalate iibres with our isotactic polypropylene fibres havin-g a high shrinkage force.
  • drawn fibres have a tenacity of approximately 5.0 g.p.d.
  • the drawn polypropylene fibres referred to in Table 3 and used in batt I of Table ⁇ 3 were melt spun from a polymer with an I.V. of 1.5 dL/gm. to give fibres with a birefringence of approximately 3 l103 and these were subsequently drawn to a draw ratio of 4.5:1.
  • the tenacity of these drawn fibres were approximately 5.5 g.p.d.
  • Table 3 shows clearly that high shrinkage undrawn polyethylene terephthalate bres when treated at ter ⁇ nperatures of C. and above generally have a low breaking load and low extensions, i.e. they are brittle, whereas high shrinkage polypropylene iibres even after being subjected to temperatures as high as C. have a high extension at break and a lhigh breaking load, i.e.
  • noni-woven material may often be subjected to high temperatures.
  • the edges TABLE 3 Load on v Temp., nbre Percent Breaking Percent Fibre Type C. during shrinkage Load Ext. at Comments shrinkage (g.p.d.) break (and) Hlgh Shrinkage Drawn poly- 130 0.0001 22 3. 68 69. 5 Not brittle propylene. 0. 001 13. 3 4. 34 44. 5 Do. 0.002 11. 5 4.47 46. 0 Do. 0. 005 10. 3 4. 54 46. 5 Do. 0. 01 9. 5 4. 54 42. 5 D0. 150 0.0001 41 3. G8 131 Do. 0.001 36 4.15 113 Do.
  • Embrittlement consequent upon heat treatment is most 30 of the non-woven sheet are often subjected to temperaeasily detected by measuring the extension at break of a specimen of fibres before Vand after lthe heat treatment.
  • a brittle yarn will have an extension at break of less than say 20% compared with about 10% before heat treatment.
  • the products of the present invention are very useful as non-woven sheet materials, generally and in particular in the preparation of leatherlike; non-woven products, especially where these products are subjected -to temperatures of 130 C. yor more either in use or at some processing stage of further manufacturing operations.
  • Impregnation may be carried out bef-ore the shrinkage step, and a single treatment may serve both to shrink the fibres and to modify the resinous or elastomeric filling agent.
  • the sheet may be provided with a finish coating -on one or both sides, and this may be smooth or may be patterned to resemble the grain of natural leather or the sheet may be treated to simulate suede.
  • the needle punching or other first stage of sonsolidation serves t-o produce further entangement of the fibresV comprising the batt.
  • This entanglement leads to resistance to shrinkage of the fibre in the shrinking step of the consolidation process.
  • the inherent shrinkage propensity of the -shrinkable fibres is sufiicient to overcome this resistance, little consolidation (measured for example by area shrinkage) 'will result from the shrinkage treatment.
  • the shrinkable fibres should have a high shrinkage force of at least 0.005 g./ denier for 10% shrinkage at 150 C. and preferably 0.01 g./denier at 20% shrinkage.
  • the shrinkage force is simply measured by treating successive hanks of the filaments at the shrinkage temperature, each being loaded with successively increasing weights, and determining the 7 length retraction. From a plot of the length shrinkage against load in g./denier, the shrinkage force at any value of shrinkage may be read.
  • shrinkable synthetic libres are used together with 50-80% by weight of other fibres which shrink, if at all, by a very small amount compared with the shrinkable synthetic fibres.
  • other fibres may be natural fibres or polyester, polyamide or other synthetic fibres possess- 'ing little shrinkage at the treatment temperature.
  • a batt was prepared by blending together 41% by weight of polypropylene fibres (l1/2" staple length, 3 denier per filament drawn with a draw ratio of 4.511 and exhibiting a shrinkage force of 0.04 g./ denier when shrunk by 10% at 150 C.) and 59% by 4weight of fully drawn polyethylene terephthalate fibres (l1/2 staple length, 1.5 denier per filament), carding and making the batt of three superposed layers of the carded web, the inner layer being arranged at right angles to the outer layers.
  • First stage consolidation was then carried out by 23 passes through a needle loom such that the batt was subjected to a total of 410 punches per square centimetre.
  • Final consolidation was carried out by treatment of the batt in an oven with high pressure steam (60 p.s.i.g., 152 C.) for five minutes, after which the batt was dried. Area shrinkage of the batt during the heat treatment was 42%.
  • the batt prepared in this manner was used to prepare a synthetic leather sheet by first immersing in a aqueous emulsion of butadiene-acrylonitrile copolymer, squeezing to remove excess of this elastomeric filling agent, followed by drying in air at room temperature for about 12 hours when 30.6% by weight of the copolymer was left dispersed throughout the batt.
  • the thus-bonded batt having a thickness of 1.5 mm. at 140 C. for 5 minutes after which it was coated with a polyurethane resin which formed a surface coating 0.1 mm. thick after drying and curing.
  • the finished sheet material had the following properties:
  • this product is cheaper to make than if made from high shrinkage polyester fibres; and in addition, because of the lower density of the polypropylene fibres which is between 0.89 and 0.92, the product of this invention is lighter in weight and easier to handle in bulk.
  • a method of manufacturing a high density, nonwoven, fibrous sheet material comprising forming a batt of fibres of which at least 20% and less than 50% by weight are partially drawn polypropylene fibres capable of shrinking by at least 20% of their original length when under a load of at least 0.01 gram per denier at 150 C. and the remainder of the fibres having low shrinkability relative to said polypropylene fibres, initially consolidating the batt by needlepunching, and finally consolidating the batt by subjecting it to a heat shrinkage treatment.
  • shrinkable polypropylene fibres comprising the batt have an extension at break of at least 20%, after heat treatment under zero load at a temperature above C. and at least 5 C. below the melting point of the fibres.
  • a fibrous, non-woven sheet material produced by a process according to claim 1.
  • a process according to claim 1 comprising the further step of impregnating the batt with an elastomeric filling agent.
  • a process according to claim 1 comprising the further step of applying a finish coating on at least one side of the batt.
  • a process according to claim 1 comprising the step of treating the sheet material to resemble suede.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Nonwoven Fabrics (AREA)
US34703864 1963-03-04 1964-02-24 Fibrous, non-woven sheet materials and the production thereof Expired - Lifetime US3317335A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB860963A GB993472A (en) 1963-03-04 1963-03-04 Fibrous non-woven sheet materials and the production thereof
GB2653063 1963-07-04
GB2793263 1963-07-15

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US3317335A true US3317335A (en) 1967-05-02

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US (1) US3317335A (fi)
BE (1) BE644708A (fi)
DK (1) DK109082C (fi)
ES (1) ES297206A1 (fi)
GB (1) GB993472A (fi)
LU (1) LU45588A1 (fi)
NL (2) NL6402166A (fi)
SE (2) SE306716B (fi)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3407461A (en) * 1966-11-29 1968-10-29 Monsanto Co Method for preparing nonwoven substrates
US3474616A (en) * 1967-06-29 1969-10-28 Du Pont Product and process
US3520764A (en) * 1965-01-29 1970-07-14 Grace W R & Co Synthetic leather materials
US3528147A (en) * 1967-07-25 1970-09-15 Montedison Spa Process for preparing non-woven fabrics
US3533902A (en) * 1969-05-29 1970-10-13 Grace W R & Co Impregnated fibrous materials and process of making the same
US3620811A (en) * 1969-11-03 1971-11-16 Goodrich Co B F Supple poromeric laminate
US4198461A (en) * 1975-09-09 1980-04-15 Hughes Aircraft Company Polymeric fiber masses, fibers therefrom, and processes for producing the same
US4237180A (en) * 1976-01-08 1980-12-02 Jaskowski Michael C Insulation material and process for making the same
US4865788A (en) * 1985-12-02 1989-09-12 Sheller-Globe Corporation Method for forming fiber web for compression molding structural substrates for panels and fiber web
US4957809A (en) * 1985-12-02 1990-09-18 Sheller-Globe Corporation Fiber web for compression molding structural substrates for panels
US6521554B1 (en) 1999-02-22 2003-02-18 Tietex International, Ltd. Stitchbonded upholstery fabric and process for making same
US20070298208A1 (en) * 2006-06-27 2007-12-27 Aseere Lester M Process of preparing carpet backing using nonwoven material

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2978785A (en) * 1956-03-05 1961-04-11 Celanese Corp Bonded batting, or non-woven fabric
GB909213A (en) * 1960-03-10 1962-10-31 Lantor Ltd Improvements in and relating to non-woven fabrics
US3067483A (en) * 1958-07-03 1962-12-11 Du Pont Sheet material and process of making same
US3067482A (en) * 1958-07-03 1962-12-11 Du Pont Sheet material and process of making same
US3188233A (en) * 1961-10-18 1965-06-08 Exxon Research Engineering Co Nonwoven fabric prepared from butyl rubber latex
US3199167A (en) * 1961-02-09 1965-08-10 West Point Pepperell Inc Process of manufacturing nonwoven fabrics

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2978785A (en) * 1956-03-05 1961-04-11 Celanese Corp Bonded batting, or non-woven fabric
US3067483A (en) * 1958-07-03 1962-12-11 Du Pont Sheet material and process of making same
US3067482A (en) * 1958-07-03 1962-12-11 Du Pont Sheet material and process of making same
GB909213A (en) * 1960-03-10 1962-10-31 Lantor Ltd Improvements in and relating to non-woven fabrics
US3199167A (en) * 1961-02-09 1965-08-10 West Point Pepperell Inc Process of manufacturing nonwoven fabrics
US3188233A (en) * 1961-10-18 1965-06-08 Exxon Research Engineering Co Nonwoven fabric prepared from butyl rubber latex

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3520764A (en) * 1965-01-29 1970-07-14 Grace W R & Co Synthetic leather materials
US3407461A (en) * 1966-11-29 1968-10-29 Monsanto Co Method for preparing nonwoven substrates
US3474616A (en) * 1967-06-29 1969-10-28 Du Pont Product and process
US3528147A (en) * 1967-07-25 1970-09-15 Montedison Spa Process for preparing non-woven fabrics
US3533902A (en) * 1969-05-29 1970-10-13 Grace W R & Co Impregnated fibrous materials and process of making the same
US3620811A (en) * 1969-11-03 1971-11-16 Goodrich Co B F Supple poromeric laminate
US4198461A (en) * 1975-09-09 1980-04-15 Hughes Aircraft Company Polymeric fiber masses, fibers therefrom, and processes for producing the same
US4237180A (en) * 1976-01-08 1980-12-02 Jaskowski Michael C Insulation material and process for making the same
US4865788A (en) * 1985-12-02 1989-09-12 Sheller-Globe Corporation Method for forming fiber web for compression molding structural substrates for panels and fiber web
US4957809A (en) * 1985-12-02 1990-09-18 Sheller-Globe Corporation Fiber web for compression molding structural substrates for panels
US6521554B1 (en) 1999-02-22 2003-02-18 Tietex International, Ltd. Stitchbonded upholstery fabric and process for making same
US20070298208A1 (en) * 2006-06-27 2007-12-27 Aseere Lester M Process of preparing carpet backing using nonwoven material

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ES297206A1 (es) 1964-09-01
LU45588A1 (fi) 1964-05-04
NL6402139A (fi) 1964-09-07
GB993472A (en) 1965-05-26
DK109082C (da) 1968-03-18
BE644708A (fi) 1964-09-04
NL6402166A (fi) 1964-09-07
SE306716B (fi) 1968-12-09
SE306512B (fi) 1968-12-02

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