GB1427040A - Non-woven fabrics of polypropylene fibres - Google Patents

Non-woven fabrics of polypropylene fibres

Info

Publication number
GB1427040A
GB1427040A GB776973A GB776973A GB1427040A GB 1427040 A GB1427040 A GB 1427040A GB 776973 A GB776973 A GB 776973A GB 776973 A GB776973 A GB 776973A GB 1427040 A GB1427040 A GB 1427040A
Authority
GB
United Kingdom
Prior art keywords
filaments
weight
layer
fabric
fibres
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
GB776973A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB1427040A publication Critical patent/GB1427040A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • 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
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/12—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by the relative arrangement of fibres or filaments of different layers, e.g. the fibres or filaments being parallel or perpendicular to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2471/00—Floor coverings
    • B32B2471/02—Carpets
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/69—Autogenously bonded nonwoven fabric

Abstract

1427040 Coated fabrics E I DU PONT DE NEMOURS & CO 16 Feb 1973 [16 Feb 1972] 7769/73 Heading B2E [Also in Division B5] A bonded non-woven fabric suitable for use as a backing for a tufted pile carpet which is coated with a latex after tufting, is composed of filaments of isotactic polypropylene which are of two types and/or of both types as alternating segments in the same filament, namely matrix fibres which have an average denier of at least 12 and an average tenacity of at least 2.5 grains per denier and binder fibres which have a lower orientation and a lower softening point than the matrix fibres and through meltbonding of which the filaments are bonded together, the fabric comprising a machine direction (MD) layer on at least one surface of the fabric, in which MD layer the filaments 2 are disposed generally in the machine direction of the fabric, and a cross-machine direction (XD) layer in which the filaments 1 are disposed generally in the cross-machine direction, each of the layers constituting 40-60% of the total fabric weight and consisting of 82-50% by weight of matrix fibres and 18-50% by weight of binder fibres, the MD layer having an MD L / XD L of at least 3.0, the XD layer having an XD L /MD L of at least 3.0 and the fabric having an MD/45‹ of at least 1.5, an XD/45‹ of at least 1.5 and an (MD+XD)/45‹ of 3.5-30, in which MD L /XD L , XD L /MD L , MD/45‹, XD/ 45‹ and (MD+XD)/45‹ are directionality values representing the relative properties of the filaments aligned in specified directions by the randometer method, The fabric may be produced by forming the MD layer or XD layer by depositing suitable filaments which may be electrostatically charged onto a moving surface by means of a plurality of pneumatically oscillated gas streams which forward the filaments, forming the other layer on top of the first layer in the same way and heating the structure comprising the MD and XD layers while restraining it under conditions such that melt-bonding of the binder fibres takes place, preferably by passage through saturated steam. A polysiloxane finish may be applied after bonding filaments having segments of matrix fibres and binder fibres may be produced by stretching the extruded filaments over rolls one of which is a heated fluted roll having grooves running along its surface in the axial direction so that segments of the filaments which touch the hot surface of the roll between grooves are drawn additionally but those segments suspended over the grooved portions are not drawn additionally. In an alternative arrangement extruded filaments may be divided into two streams one of which is passed over additional rolls as compared with the other before they are combined to form a single group. After tufting to form a carpet, a latex comprising 3 parts by weight of elastomer particles of 60% by weight of styrene and 40% by weight of butadiene and 1 part by weight of elastomer particles of 40% by weight of styrene and 60% by weight of butadiene may be applied by roller coating to the backing.
GB776973A 1972-02-16 1973-02-16 Non-woven fabrics of polypropylene fibres Expired GB1427040A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22676672 US3821062A (en) 1972-02-16 1972-02-16 Nonwoven polypropylene fabric

Publications (1)

Publication Number Publication Date
GB1427040A true GB1427040A (en) 1976-03-03

Family

ID=22850316

Family Applications (1)

Application Number Title Priority Date Filing Date
GB776973A Expired GB1427040A (en) 1972-02-16 1973-02-16 Non-woven fabrics of polypropylene fibres

Country Status (11)

Country Link
US (1) US3821062A (en)
JP (1) JPS5920018B2 (en)
BE (1) BE795453A (en)
CA (1) CA977925A (en)
CH (1) CH564117A5 (en)
DE (1) DE2307829C2 (en)
FR (1) FR2172265B1 (en)
GB (1) GB1427040A (en)
IT (1) IT1006567B (en)
LU (1) LU67042A1 (en)
NL (1) NL172573C (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2276414A1 (en) * 1974-06-24 1976-01-23 Du Pont POLYPROPYLENE BONDED NON-WOVEN FABRIC AND ITS PRODUCTION
US3991244A (en) * 1974-06-24 1976-11-09 E. I. Du Pont De Nemours And Company Nonwoven polypropylene fabric
US3993812A (en) * 1975-03-06 1976-11-23 E. I. Du Pont De Nemours And Company Unbonded fibrous non-woven sheet and articles made therefrom
JPS52165998U (en) * 1976-06-10 1977-12-15
US4086381A (en) * 1977-03-30 1978-04-25 E. I. Du Pont De Nemours And Company Nonwoven polypropylene fabric and process
JPS6330810Y2 (en) * 1984-10-20 1988-08-17
JPS63128307U (en) * 1987-02-16 1988-08-22
US4996091A (en) * 1987-05-26 1991-02-26 Acumeter Laboratories, Inc. Product comprising substrate bearing continuous extruded fiber forming random crisscross pattern layer
ATE88944T1 (en) * 1989-11-20 1993-05-15 Du Pont CIRCUIT FOR PATTERNED CONCRETE.
US5124102A (en) * 1990-12-11 1992-06-23 E. I. Du Pont De Nemours And Company Fabric useful as a concrete form liner
US5247730A (en) * 1991-10-25 1993-09-28 E. I. Du Pont De Nemours And Company Method for attaching and bidirectionally tensioning a porous fabric over a form support
US5256224A (en) * 1991-12-31 1993-10-26 E. I. Du Pont De Nemours And Company Process for making molded, tufted polyolefin carpet
US5302099A (en) * 1992-09-28 1994-04-12 E. I. Du Pont De Nemours And Company Laminated fabric useful as a concrete form liner
US7972981B2 (en) * 2002-03-15 2011-07-05 Fiberweb, Inc. Microporous composite sheet material
US20080153373A1 (en) * 2006-12-22 2008-06-26 Walter Randall Hall Abrasion resistant fire blocking fabric

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL138974B (en) * 1964-08-17 1973-05-15 Du Pont NON-WOVEN SHEET TEXTILE MATERIAL.
CA923418A (en) * 1967-07-07 1973-03-27 V. Edwards Clifton Bonded nonwoven fabric
US3563838A (en) * 1968-07-09 1971-02-16 Du Pont Continuous filament nonwoven web
NL159734C (en) * 1970-03-26

Also Published As

Publication number Publication date
IT1006567B (en) 1976-10-20
FR2172265A1 (en) 1973-09-28
JPS4892658A (en) 1973-12-01
JPS5920018B2 (en) 1984-05-10
BE795453A (en) 1973-08-16
CH564117A5 (en) 1975-07-15
LU67042A1 (en) 1973-08-31
US3821062A (en) 1974-06-28
FR2172265B1 (en) 1977-02-04
DE2307829C2 (en) 1986-10-30
CA977925A (en) 1975-11-18
NL7302153A (en) 1973-08-20
DE2307829A1 (en) 1973-08-23
NL172573C (en) 1983-09-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19930214