US3728195A - Apparatus for the production of non-woven net fabrics - Google Patents

Apparatus for the production of non-woven net fabrics Download PDF

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Publication number
US3728195A
US3728195A US00798044A US3728195DA US3728195A US 3728195 A US3728195 A US 3728195A US 00798044 A US00798044 A US 00798044A US 3728195D A US3728195D A US 3728195DA US 3728195 A US3728195 A US 3728195A
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United States
Prior art keywords
thread
reaches
weft
screws
sheet
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Expired - Lifetime
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US00798044A
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English (en)
Inventor
M Bolles
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Milliken Research Corp
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Milliken Research Corp
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Publication date
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Publication of US3728195A publication Critical patent/US3728195A/en
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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
    • 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
    • D04H3/07—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 otherwise than in a plane, e.g. in a tubular way
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • B29C70/504—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands
    • 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
    • D04H3/04—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 in rectilinear paths, e.g. crossing at right angles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/0854—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns in the form of a non-woven mat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/10—Cords, strands or rovings, e.g. oriented cords, strands or rovings
    • B29K2105/101—Oriented
    • B29K2105/108—Oriented arranged in parallel planes and crossing at substantial angles

Definitions

  • This invention relates to the production of textile fabrics and, more particularly, to an improved apparatus for the formation of non-woven net fabrics.
  • These fabrics are widely used as reinforcement in various laminated products, such as synthetic polymeric films, paper sheets, and the like, and as a support backing for carpets and multi-part materials, such as ceramic or wooden floor tiles.
  • Such fabrics are also useful as packing materials, and as screening material for windows, doors and the like.
  • the helical support springs provide means 3,728,195 Patented Apr. 17, 1973 "ice for more positively advancing the weft threads in spaced relation to form the weft sheet
  • the use of the springs has certain disadvantages. Due to the long extent and relatively flexible nature of the end-supported springs, the springs are easily displaced from their proper parallel relationship during rotation, being readily pulled inwardly towards each other to cause undesirable width variations in the weft sheet. In addition, at the high rotational speeds desired for economical commercial production of the fabric, the springs tend to vibrate which often causes misplacement of the thread reaches between the helices of the springs and resultant non-uniform spacing of the reaches in the weft sheet.
  • the spaced rotatable support members for forming the weft sheet comprise a pair of elongate screws of highly rigid construction, and wherein the screws are supported at one end for rotation about their longitudinal axes while their threaded surfaces engage loop ends of the thread reaches extending therebetween to advance the thread reaches in uniformly spaced relation to form the weft sheet.
  • the screws of the present invention possess a high section modulus such that they resist displacement from their longitudinal axis to exhibit exceptional positional stability during rotation.
  • FIG. 1 is a schematic side elevation of an apparatus for producing non-woven net fabrics embodying the features of the present invention
  • FIG. 2 is a schematic plan view of the apparatus of FIG. 1, with portions of warp sheet path shown in FIG.- 1 omitted for convenience;
  • FIG. 3 is an enlarged sectional view taken generally along line 3-3 of FIG. 2, and showing in more detail, one of the rotatable thread support screws of the apparatus.
  • FIG. 1 shows an apparatus for continuously forming non-woven net fabrics which generally includes a thread winding section 10, a weft sheet forming section 12, a warp and Weft sheet combining section 14, and a section, indicated at 16, for securing the sheets in contiguous co-planar relation to form a non-woven net fabric.
  • thread winding section includes thread winding means comprising a hollow tubular thread-guide arm 20 secured to a hollow central shaft 22 for rotation therewith.
  • Shaft 22 is suitably supported, as by a support frame 23, for rotation about its central axis and is rotatably driven by a motor 24, the shaft 25 of which is drivingly connected thereto by sprockets 27, 28 and an endless drive chain 29 (shown in broken lines).
  • Guide arm 20 is appropriately counterbalanced for rotation by a weighted arm 30.
  • a continuous thread 32 is continuously passed from a thread supply package 34 through the hollow shaft 22, radially outwardly through the hollow tubular arm 20, and through a thread outlet 26 in its outer end.
  • the weft sheet forming section 12 includes a pair of spaced thread support members 40, 42 which supportably receive the thread 32 passing from the outlet 36 of guide arm 20 in a plurality of generally parallel thread reaches R therebetween (FIG. 2).
  • Thread support members 40, 42 are of substantially identical construction and are best described by reference to FIG. 3, which is an enlarged elevational view of the rotatable member 40.
  • Each rotatable member comprises an elongate screw 44 having a helically threaded surface extending throughout a major portion of its length.
  • the screw is constructed of high strength, rigid material, such as steel, aluminum, plastic, or the like, and one end thereof is removably secured, as by a set screw 45, in the enlarged end portion of a stub shaft 46 for rotation therewith.
  • the stub shaft 46 is retatably mounted on the end of a cross-arm 48 which is supported by a bearing 49 surrounding the drive shaft 22.
  • Each thread support screw is rotated about its longitudinal axis by a sprocket chain 50 drivingly connecting a sprocket 51 on the end of drive shaft 22 to sprockets 53, 54 on the respective stub shafts 46, 47.
  • suitably supported blocks or stop members 56, 57 are positioned beneath each screw and abuttingly engage the same to prevent rotation of the cross-arm 48 and screws about the shaft 22 during its rotation and thereby positionally stabilize the same.
  • each screw is of relatively large cross section to provide maximum strength and rigidity to the screw during its rotation by the stub shaft.
  • the screw preferably is tapered along its length in the direction of advancement of the thread reaches thereon to bring the upper and lower reaches of the thread loop ends progressively towards each other during their advance along the screws, such that the weft sheet reaches approach co-planar alignment as they enter the warp and weft sheet combining section 14 of the apparatus. Note the position of loop end portions of the continuous weft thread 32 in the grooves of the screw 44 shown in FIG. 3.
  • the taper of the thread supporting screws also serves to relieve any tension which may be imposed on the thread reaches during the winding of the thread on the screws and which might tend to cause misplacement of the reaches in the weft sheet as the reaches leave the ends of the screws.
  • the ends of the screws adjacent the stub shafts 46, 47 may be provided with conically shaped thread guides 58, 59 which facilitate placement of the thread reaches in the thread grooves of the screws as they are wound thereon by the guide arm 20.
  • the warp and weft sheet combining section 14 includes a pair of nip rolls 84, 86 which are rotatably supported by suitable means, not shown, between the free or open ends of the screws.
  • the securing section 16 includes an adhesive bath 100 through which the composite sheet of warp and weft threads are passed by rotatable squeeze rolls 102, 103 to apply a suitable adhesive thereto.
  • the sheet thereafter passes about the surface of heated drying rolls 104, 105 where the warp and weft sections thereof are secured together, and the thus formed non-woven net fabric is collected on a collection roll 106.
  • one or more of the rolls in the securing section 16 may be suitably driven to move the warp and weft sheets through the apparatus.
  • the stub shafts 46, 47 and their respective thread supporting screws have aligned central passageways (note the screw passageway 108 shown in broken lines in FIG. 3) through which selvage threads 110, 111 continuously pass during formation of the weft sheet to be positioned within the loop ends of the weft thread reaches as the reaches leave the open ends of the screws.
  • the selvage threads not only strengthen the composite non-woven net fabric product, but provide additional support to the weft sheet during its passage through the securing section 16 of the apparatus.
  • the threads which may be employed to form the nonwoven net fabrics may be composed of any continuous filament or spun textile yarns of synthetic or natural fiber composition. Where high strength is desired in the fabric product, as when the non-woven fabrics are to be employed as a reinforcement fabric in a composite product, mineral fibers, such as fiber glass threads, may be particularly desirable for use.
  • the rigid screw support members of the present apparatus possess exceptional strength and rigidity so as to facilitate positive positioning of the screws during rotation, thereby insuring uniform placement of the reaches in the weft sheet and uniform width control of the sheet during high speed operation of the apparatus.
  • the thread surfaces of the screws may be readily designed and constructed to uniformly position the weft thread reaches in closely spaced, even contiguous relation for the production of highly dense fabrics, without sacrificing the structural strength of the support members as has heretofore been the case when helical springs were employed.
  • screws of various surface configurations may be readily interchangeably employed in the apparatus to produce non-woven net fabrics of exceptional quality and uniformity.
  • an apparatus for producing non-woven net fabrics including means for winding a continuous thread about a pair of elongate, spaced, thread support members to form a plurality of reaches therebetween, the members being rotatable to advance the reaches laterally in spaced relation therealong to form a weft sheet, means for combining one or more sheets of warp threads with the sheet of weft threads in contiguous co-planar relation, and
  • each of said thread support members comprises a screw having a longitudinal passageway therethrough, the longitudinal axis of each screw extending generally parallel to the direction of advancement of said reaches, the grooves of the threaded surface of each screw being adapted to engage respective loop ends of the thread reaches to advance the reaches along the screw during its rotation, each screw being tapered over at least a portion of its thread-moving length in the direction of advancement of the reaches to move the respective thread reaches of each loop end toward each other and toward co-planar alignment during their movement along the screw, means rotatably supporting each screw at its larger end, and said means for combining one or more sheets of warp threads with the weft threads includes a pair of nip rolls extending between said screws, the smaller ends of said screws extending past the nip portion of said rolls in the direction of movement of the weft sheet to supportably guide the spaced reaches thereof into the nip portion for
  • Apparatus as defined in claim. 1 including means engaging the peripheral thread engaging surface of each screw adjacent its larger end to positionally stabilize the same during rotation.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Woven Fabrics (AREA)
US00798044A 1969-02-10 1969-02-10 Apparatus for the production of non-woven net fabrics Expired - Lifetime US3728195A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79804469A 1969-02-10 1969-02-10

Publications (1)

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US3728195A true US3728195A (en) 1973-04-17

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US00798044A Expired - Lifetime US3728195A (en) 1969-02-10 1969-02-10 Apparatus for the production of non-woven net fabrics

Country Status (5)

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US (1) US3728195A (enrdf_load_stackoverflow)
CS (1) CS156449B2 (enrdf_load_stackoverflow)
DE (1) DE7004047U (enrdf_load_stackoverflow)
FR (1) FR2030408B1 (enrdf_load_stackoverflow)
GB (1) GB1265123A (enrdf_load_stackoverflow)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3839769A (en) * 1973-06-18 1974-10-08 Deering Milliken Res Corp Apparatus to produce non-woven fabric
EP0091681A3 (en) * 1982-04-12 1986-03-26 Kurashiki Boseki Kabushiki Kaisha Apparatus for the production of reinforcing non-woven fabrics for composites
EP0259612A2 (en) 1986-08-08 1988-03-16 Bay Mills Limited Reinforcing composite for roofing membranes and process for making such composites
US4908089A (en) * 1986-06-30 1990-03-13 Toyo Eizai Kabushiki Kaisha Apparatus for making an elasticized unit
US5305504A (en) * 1993-01-15 1994-04-26 Milliken Research Corporation Method and apparatus for forming a scrim with yarns oriented in the bias direction
US5314556A (en) * 1990-05-08 1994-05-24 Bay Mills Limited Process for manufacturing reinforced roofing membranes
US5470648A (en) * 1994-06-10 1995-11-28 E. I. Du Pont De Nemours And Company Composite fabrics of nonwoven nylon layers and fiberglass scrim
WO1999005352A1 (en) * 1997-07-23 1999-02-04 Holroyd Associates Limited Improvements in tyre manufacture
WO1999004959A1 (en) * 1997-07-23 1999-02-04 Holroyd Associates Limited Improvements in tyre manufacture
US5965232A (en) * 1995-06-26 1999-10-12 E.I. Du Pont De Nemours & Co., Inc. Decorative composite floor coverings
US6107220A (en) * 1996-10-18 2000-08-22 E. I. Du Pont De Nemours And Company Rapid fabric forming
CN1080628C (zh) * 1996-06-07 2002-03-13 欧文斯康宁合成物有限公司 配送树脂浸渍增强纤维的方法
US6524980B1 (en) 1999-10-01 2003-02-25 The Garland Company, Inc. Roofing membranes using composite reinforcement constructions
US20040077242A1 (en) * 2002-10-16 2004-04-22 Layman Bruce W. Composite backing for stabilized carpet
US6928780B1 (en) * 2002-05-10 2005-08-16 Hohmann & Barnard, Inc. Metal foil/scrim flashings
US20090313796A1 (en) * 2006-08-04 2009-12-24 Md Fibertech Corporation Method for the continuous production of a multiaxial contexture web
US7823355B1 (en) 2002-05-10 2010-11-02 Mitek Holdings, Inc. Nonmetallic masonry flashing
US7882673B1 (en) 2003-04-30 2011-02-08 Mitek Holdings, Inc. Single-ply masonry flashing

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8413092D0 (en) * 1984-05-22 1984-06-27 Apsley Metals Ltd Tyre reinforcement fabrics
FR2581631B1 (fr) * 1985-05-07 1987-07-10 Superba Sa Dispositif a vis sans fin pour former des boucles plates de fils textiles
FR2584430B1 (fr) * 1985-07-04 1988-03-25 Superba Sa Ligne de vaporisage de fils textiles par vapeur saturee a pression atmospherique.
GB2327391B (en) * 1997-07-23 2001-06-13 Holroyd Associates Ltd Improvements in tyre manufacture
US6038949A (en) * 1998-09-14 2000-03-21 Nv Owens-Corning S.A. Method for dispensing reinforcement fibers
US8028736B2 (en) 2006-08-25 2011-10-04 Ocv Intellectual Capital, Llc System for forming reinforcement layers having cross-directionally oriented fibers
FR3023303B1 (fr) * 2014-07-02 2019-04-26 Porcher Industries Procede de fabrication de grille textile et installation et materiels y relatifs

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL251452A (enrdf_load_stackoverflow) * 1959-05-11

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3839769A (en) * 1973-06-18 1974-10-08 Deering Milliken Res Corp Apparatus to produce non-woven fabric
EP0091681A3 (en) * 1982-04-12 1986-03-26 Kurashiki Boseki Kabushiki Kaisha Apparatus for the production of reinforcing non-woven fabrics for composites
US4908089A (en) * 1986-06-30 1990-03-13 Toyo Eizai Kabushiki Kaisha Apparatus for making an elasticized unit
EP0259612A2 (en) 1986-08-08 1988-03-16 Bay Mills Limited Reinforcing composite for roofing membranes and process for making such composites
US4762744A (en) * 1986-08-08 1988-08-09 Bay Mills Limited Reinforcing composite for roofing membranes and process for making such composites
US5314556A (en) * 1990-05-08 1994-05-24 Bay Mills Limited Process for manufacturing reinforced roofing membranes
US5439726A (en) * 1990-05-08 1995-08-08 Bay Mills Limited Bituminous roofing membrane including a lightweight grid and over-under construction
US5593766A (en) * 1990-05-08 1997-01-14 Bay Mills Limited Composite for reinforcing bituminous roofing membranes including a lightweight grid of over-under construction
US5305504A (en) * 1993-01-15 1994-04-26 Milliken Research Corporation Method and apparatus for forming a scrim with yarns oriented in the bias direction
US5470648A (en) * 1994-06-10 1995-11-28 E. I. Du Pont De Nemours And Company Composite fabrics of nonwoven nylon layers and fiberglass scrim
US5965232A (en) * 1995-06-26 1999-10-12 E.I. Du Pont De Nemours & Co., Inc. Decorative composite floor coverings
CN1080628C (zh) * 1996-06-07 2002-03-13 欧文斯康宁合成物有限公司 配送树脂浸渍增强纤维的方法
US6579815B1 (en) 1996-10-18 2003-06-17 E. I. Du Pont De Nemours And Company Rapid fabric forming
US6107220A (en) * 1996-10-18 2000-08-22 E. I. Du Pont De Nemours And Company Rapid fabric forming
WO1999005352A1 (en) * 1997-07-23 1999-02-04 Holroyd Associates Limited Improvements in tyre manufacture
WO1999004959A1 (en) * 1997-07-23 1999-02-04 Holroyd Associates Limited Improvements in tyre manufacture
US6323145B1 (en) 1997-10-17 2001-11-27 E. I. Du Pont De Nemours And Company Rapid fabric forming for penetration resistant fabric
US6524980B1 (en) 1999-10-01 2003-02-25 The Garland Company, Inc. Roofing membranes using composite reinforcement constructions
US6928780B1 (en) * 2002-05-10 2005-08-16 Hohmann & Barnard, Inc. Metal foil/scrim flashings
US7823355B1 (en) 2002-05-10 2010-11-02 Mitek Holdings, Inc. Nonmetallic masonry flashing
US20040077242A1 (en) * 2002-10-16 2004-04-22 Layman Bruce W. Composite backing for stabilized carpet
US7882673B1 (en) 2003-04-30 2011-02-08 Mitek Holdings, Inc. Single-ply masonry flashing
US20090313796A1 (en) * 2006-08-04 2009-12-24 Md Fibertech Corporation Method for the continuous production of a multiaxial contexture web
US8205425B2 (en) * 2006-08-04 2012-06-26 Md Fibertech Corporation Cascade guide

Also Published As

Publication number Publication date
FR2030408A1 (enrdf_load_stackoverflow) 1970-11-13
GB1265123A (enrdf_load_stackoverflow) 1972-03-01
CS156449B2 (enrdf_load_stackoverflow) 1974-07-24
FR2030408B1 (enrdf_load_stackoverflow) 1974-03-15
DE7004047U (de) 1970-10-07

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