US3744529A - Extruded plastics netting - Google Patents

Extruded plastics netting Download PDF

Info

Publication number
US3744529A
US3744529A US00132432A US3744529DA US3744529A US 3744529 A US3744529 A US 3744529A US 00132432 A US00132432 A US 00132432A US 3744529D A US3744529D A US 3744529DA US 3744529 A US3744529 A US 3744529A
Authority
US
United States
Prior art keywords
strands
net
orientated
layer
tube
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 - Lifetime
Application number
US00132432A
Other languages
English (en)
Inventor
J Jorda
J Farre
F Espinosa
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.)
NETLON PTA Ltd
Original Assignee
NETLON PTA Ltd
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 NETLON PTA Ltd filed Critical NETLON PTA Ltd
Application granted granted Critical
Publication of US3744529A publication Critical patent/US3744529A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • B29C48/337—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging at a common location
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/33—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles with parts rotatable relative to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2028/00—Nets or the like
    • 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
    • Y10T428/24074—Strand or strand-portions

Definitions

  • ABSTRACT An extruded orientated tubular plastic mesh or net for packaging purposes comprising an inner set or layer of spaced parallel orientated strands extending in a helix around the tube, an outer set or layer of similarly spaced parallel orientated strands extending in an equal angle but opposite helix around the tube, the inner and outer sets or'layers of strands being unconnected at their crossing points and a third set or layer of spaced strands, more orientated and attenuated than the helical strands, interconnecting the inner
  • This invention relates to a tubular net for packaging purposes (particularly as described hereinafter) of the type comprising two sets of parallel extruded plastic strands extending in opposite helices around the tube, the tubular net having been stretched longitudinally in rope form to cause molecular orientation of the plastic in the net strands.
  • Net of the above type may be made, for example, according to the method, and by the apparatus similar to that shown in US. Pat. No.
  • Packaging as referred to in this specification is the packaging of one or more, usually a number, of goods or articles within the net tube by closing the tube with a clip or tie, loading the article or articles into the tube through the tube, closing the tube behind the article or articles by a clip or tie and severing the completed pack from the remaining net tube.
  • Produce such as fruit or vegetables lend themselves particularly to packagingin this manner and high packaging speeds are obtained by loading a long length of net tube concertina-ed or gathered in folds onto an inclined feed tube down which articles to be packed are fed.
  • the net tube may be loaded in rope form direct on to the feed tube of the packaging machine or the net may be pre-sleeved on a paper or card core or support which can be slid over the feed tube. In order to obtain maximum efficiency it is desirable to load the packaging machine with as long a length of concertina-ed or gathered in folds net as possible.
  • plastic as used herein, is meant:
  • thermoplastic polymer material capable of melt or compression extrusion in a molten state through dies and settable by a cooling medium on issuance from the dies.
  • Suitable thermoplastic materials include polyamides or superpolyamides, such as nylon; polyesters; polyvinylchloride and copolymers thereof with vinylacetate or vinylidine chloride; and polyolefins and the like; or
  • Extruded plastic nets produced as set out above have the intersecting sets of helical strands joined to each other at each crossing point and the double thickness of plastic at each crossing point usually remains largely unstretched and unorientated when the net is stretched in rope form so that small thicker unorientated masses of plastic or knots remain.
  • Extruded plastic nets as described in the preceeding paragraph is a strong and satisfactory structure for packaging particularly in the form of sacks or bags although there is a tendency-for tear lines to develop along the net strands caused by stresses being concentrated at the transition points between the stretched and orientated plastic strands and the thicker unorientated junctions or knots".
  • Also such nets have considerable radial elasticity or spring caused by the stiff' ness of the bonded net intersections which can cause the net to bind on the feed tube of the packaging machine or to crush the paper or card core or support of a pre-sleeved net length.
  • the bonded net intersections of such nets also prevent the net tube from being packed up tight with maximum density on the feed tube or pre-sleeve core or support.
  • an improved tubular plastic packaging net by an extrusion process which has the advantageous qualities of a knitted net but which is manufactured in a single stage direct from the raw material.
  • an improved tubular plastic packa g ing net produced by extrusion in which:
  • the helical strands are more uniformly stretched and molecularly orientated throughout their length
  • the invention consists in an extruded orientated tubular plastic mesh or net for the purposes indicated comprising an inner set or layer of spaced parallel orientated strands extending in a helix around the tube, an outer set or layer of similarly spaced parallel orientated strands extending in an equal angle but opposite helix around the tube, the inner and outer sets or layers of strands being unconnected at their crossing points and a third set or layer of spaced strands, more orientated and attenuated than the helical strands, interconnecting the inner and outer sets or layers of helical strands along lines of connection points parallel to the tube axis, each strand of the third set or layer having alternate connection along its length with the outer sides of the strands of the inner set and the inner sides of the strands of the outer set, and each third set strand extending from connection point to adjacent connection point along a looped untensioned path.
  • the invention further consists in an extruded orientated tubular plastic meshs or net according to the preceding paragraph in which the junctions of the third set of strands with the strands of the inner and outer sets are positioned substantially midway between adjacent crossing points of the inner and outer sets of strands.
  • the invention still further consists in an extruded orientated tubular plastic meshs or net according to the preceding paragraph wherein the third set strands extend between connections with the inner and outer set strands either:
  • the inner and outer sets of strands are capable of independent movement along their lengths, transversely of their lengths and away from each other transverse to the plane of the net, this freedom of movement giving rise to the objects and advantages of the present invention, more particularly:
  • the improved net according to the present invention is produced by extruding a suitable plastic from three concentric adjacent sets of spaced die orifices, an inner set, an intermediate set and an outer set, the inner and outer sets counter-rotating at equal speeds to give equal but opposite helix angles to the inner and outer strands extruded therefrom and the intermediate set being stationary and the die orifices thereof positioned so that they are not in radial register with the die orifices of the inner set and outer set as the latter pass in radial register.
  • the resultant three strand net having two sets of strands extending helically and oppositely around the net tube and the third set extending in the machine direction, i.e., parallel to the tube axis or direction of extrusion, is passed into a cooling-bath and set and thence passed to a stretching device which firstly causes the intermediate or third set of strands to stretch whereby the net takes up a roped form only then enabling a degree of stretch to take place in the other (helical) strands, whereby the intermediate or third set of strands are always considerably more stretched than theother (helical) strands, hence the looped configuration of the intermediate or third strands when the net tube is opened up.”
  • the inner and outer helical strands are not directly connected one to another and after stretching has taken place and the net tube opened up, the intermediate strands which link the inner strands loosely to the outer strands are in a looped or wavy untensioned configuration for the reason mentioned above.
  • the resultant relative movement of the helical strands causes the intermediate strands to adopt a looped formation, in which state they can have no effect on the stability of the opened mesh structure of the net tube and since neither the outer nor the inner strands are at any time or place joined together through common joints or intersections with the intermediate strands, the result is a totally unstable diamond mesh structure.
  • FIG. 1 is a portion of oriented net according to the present invention
  • FIG. 2 is a portion of oriented net as in FIG. 1 on an enlarged scale
  • FIG. 3 is a perspective view of the cross-over of an inner strand and an outer strand and a pair of intermediate strands interconnecting them,
  • FIG. 4 is a side elevation of the crossover shown in FIG. 3,
  • FIG. 5 is a diagram showing the independent movement of crossing inner and outer strands
  • FIG. 6 is a sectional side elevation of the dies for extruding the net from which the oriented net according to the present invention is formed.
  • FIG. 7 is a sectional side elevation on an enlarged scale of the die lips as shown in FIG. 6.
  • the oriented net according to one form of the present invention comprises (FIGS. 1 and 2) inner strands l, outer strands 2 and intermediate strands 3 interconnecting the strands 1 and 2.
  • the intermediate strands 3 are stretched more than the innerand outer strands l and 2 when the net in tubular roped form (as previously described), is stretched after extrusion and in consequence the strands 3 are always much thinner and more flexible than the strands 1 and 2, but since it is important that the strands 3 exert minimal physical forces on the net structure, the strands 3, as cast i.e., before stretching, are preferably thinner or finer than the inner and outer strands 1 and 2 so that it is ensured that the strands 3 are very much thinner than the inner and outer strands l and 2.
  • the intermediate strands 3 are also longer, due to the greater stretch, than the strands l and 2 they adopt a looped formation between their junction points 4 and 5 with the inner and outer strands l and 2 respectively, which junction points 4 and 5 lie on lines running parallel to the net tube axis X X (FIG. 2). Where the inner and outer strands l and 2 cross one another as at 6 there is no joint or connection between them and in consequence the strands l and the strands 2 can move independently as shown by the arrows in FIG. 5 (the intermediate strands 3 not being shown in this drawing).
  • the three strand (inner, outer and intermediate) tubular net to be stretched according to the present in-' vention is extruded from a die head (FIG. 6) having three concentric circular die lips 10, 1-1 and 12 (see FIG. 7) of which the die lip 10 extrudes the inner strands l, the die lip 11 the outer strands 2 and the die lip 12 the intermediate strands 3.
  • the die lips and 11 are counter-rotated at equal speed by means not shown and the die lip 12 is held stationary on a fixed sleeve 13 surrounding a shaft 14 of the inner die lip 10.
  • the die lips 10, 11 and 12 are formed, in known manner, with circumferentially spaced die orifices in the form, as shown in FIG. 7, of die slots 15, 16, 17 but these die orifices may also be formed in known manner by bores (not shown).
  • the die lip 12 has twice as many die slots or other die orifices 17 as the inner or outer die lips 10 or 11; likewise where intermediate strands 3 are disposed on one side only of every crossing point, the' die lip 12 has the same number of slots or orifices 17 as the other die lips.
  • the plastic feeds to the die lips 10, 11, 12 and the rostretched in rope form (as previously described) to become the tubular oriented net according to the present invention having the improved and special qualities, properties and advantages set forth hereinbefore.
  • An extruded orientated tubular plastic mesh or net for packaging purposes comprising an inner set or layer of spaced parallel orientated strands extending in a helix around the tube, an outer set or layer of similarly spaced parallel orientated strands extending in an equal angle but opposite helix around the tube,'the inner and outer sets or layers of strands being unconnected at their crossing points and a third set or layer of spaced strands, more orientated and attenuated than the helical strands, interconnecting the inner and outer sets or layers of helical strands along lines of connection points parallel to the tube axis, each strand of the third set of layer having alternate connection along its length with the outer sides of the strands of the inner set and the inner sides of the strands of the outer set, each third set strand extending from connection point to adjacent connection point along a looped untensioned path.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Wrappers (AREA)
US00132432A 1970-04-09 1971-04-08 Extruded plastics netting Expired - Lifetime US3744529A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1700870 1970-04-09

Publications (1)

Publication Number Publication Date
US3744529A true US3744529A (en) 1973-07-10

Family

ID=10087571

Family Applications (1)

Application Number Title Priority Date Filing Date
US00132432A Expired - Lifetime US3744529A (en) 1970-04-09 1971-04-08 Extruded plastics netting

Country Status (12)

Country Link
US (1) US3744529A (xx)
AU (1) AU2725671A (xx)
BE (1) BE765318A (xx)
CH (1) CH522539A (xx)
DE (1) DE2116790A1 (xx)
DK (1) DK122945B (xx)
ES (1) ES198368Y (xx)
FR (1) FR2085948B1 (xx)
GB (1) GB1306686A (xx)
IE (1) IE35046B1 (xx)
NL (1) NL7104820A (xx)
ZA (1) ZA712049B (xx)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3844510A (en) * 1973-02-08 1974-10-29 Wire Mills Corp Method and fabric for pipe reinforcement
US4005863A (en) * 1974-10-04 1977-02-01 Henry Dana R Tennis rackets
US4098937A (en) * 1972-03-07 1978-07-04 Economics Laboratory, Inc. Treatment of fabrics in machine dryers
US4136501A (en) * 1977-10-11 1979-01-30 Bemis Company, Inc. Elastic plastic netting, and pallet load wrapping therewith
US4208457A (en) * 1979-05-04 1980-06-17 Conwed Corporation Plastic netting for load unitization
US4241123A (en) * 1978-11-14 1980-12-23 Shih Seng C Non-woven netting
US4249731A (en) * 1977-10-31 1981-02-10 Amster Harlan D Game racket
US4353956A (en) * 1981-06-05 1982-10-12 Nalle George S Jr Helical net
USRE31191E (en) * 1977-10-11 1983-03-29 Bemis Company, Inc. Elastic plastic netting, and pallet load wrapping therewith
US4419313A (en) * 1977-08-17 1983-12-06 Fiber Industries, Inc. Self crimping yarn and process
US4489543A (en) * 1977-08-17 1984-12-25 Celanese Corporation Self-crimping yarn
US4597576A (en) * 1984-07-09 1986-07-01 Haythornthwaite James Alan Sports racquet utilizing non-circular strings
US6692804B1 (en) * 1997-02-27 2004-02-17 Guill Tool & Engineering Co., Inc. High strength extruded tubular product and method for making said product
US20150071710A1 (en) * 2007-08-09 2015-03-12 Gse Environmental, Llc Geonet for a geocomposite
USD732189S1 (en) * 2013-03-15 2015-06-16 Tenax Corporation Fluorescent yellow colored plastic net structure
US20160236264A1 (en) * 2014-01-09 2016-08-18 Moshe Ore Protecting Net
CN112590157A (zh) * 2020-11-05 2021-04-02 江苏虹驰家居科技有限公司 一种基于poe材料的仿生蚕茧结构加工工艺

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO152611C (no) 1978-10-16 1985-10-23 Plg Res Plastnettkonstruksjon, fremgangsmaate til dens fremstilling og anvendelse av konstruksjonen
US5156495B1 (en) 1978-10-16 1994-08-30 Plg Res Plastic material mesh structure
US4332326A (en) * 1979-05-04 1982-06-01 Conwed Corporation Plastic netting for load unitization
DE19959561B4 (de) * 1999-12-10 2005-09-01 Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg Verpackungs- und/oder Transporteinheit für Dämmstoffe

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098937A (en) * 1972-03-07 1978-07-04 Economics Laboratory, Inc. Treatment of fabrics in machine dryers
US3844510A (en) * 1973-02-08 1974-10-29 Wire Mills Corp Method and fabric for pipe reinforcement
US4005863A (en) * 1974-10-04 1977-02-01 Henry Dana R Tennis rackets
US4419313A (en) * 1977-08-17 1983-12-06 Fiber Industries, Inc. Self crimping yarn and process
US4489543A (en) * 1977-08-17 1984-12-25 Celanese Corporation Self-crimping yarn
US4136501A (en) * 1977-10-11 1979-01-30 Bemis Company, Inc. Elastic plastic netting, and pallet load wrapping therewith
USRE31191E (en) * 1977-10-11 1983-03-29 Bemis Company, Inc. Elastic plastic netting, and pallet load wrapping therewith
US4249731A (en) * 1977-10-31 1981-02-10 Amster Harlan D Game racket
US4241123A (en) * 1978-11-14 1980-12-23 Shih Seng C Non-woven netting
US4208457A (en) * 1979-05-04 1980-06-17 Conwed Corporation Plastic netting for load unitization
US4353956A (en) * 1981-06-05 1982-10-12 Nalle George S Jr Helical net
US4597576A (en) * 1984-07-09 1986-07-01 Haythornthwaite James Alan Sports racquet utilizing non-circular strings
US6692804B1 (en) * 1997-02-27 2004-02-17 Guill Tool & Engineering Co., Inc. High strength extruded tubular product and method for making said product
US20150071710A1 (en) * 2007-08-09 2015-03-12 Gse Environmental, Llc Geonet for a geocomposite
USD732189S1 (en) * 2013-03-15 2015-06-16 Tenax Corporation Fluorescent yellow colored plastic net structure
US20160236264A1 (en) * 2014-01-09 2016-08-18 Moshe Ore Protecting Net
US10441994B2 (en) * 2014-01-09 2019-10-15 Moshe Ore Protecting net
CN112590157A (zh) * 2020-11-05 2021-04-02 江苏虹驰家居科技有限公司 一种基于poe材料的仿生蚕茧结构加工工艺
CN112590157B (zh) * 2020-11-05 2022-08-23 江苏虹驰家居科技有限公司 一种基于poe材料的仿生蚕茧结构加工工艺

Also Published As

Publication number Publication date
IE35046B1 (en) 1975-10-29
IE35046L (en) 1971-10-09
BE765318A (fr) 1971-08-30
ES198368U (es) 1975-06-01
DE2116790A1 (de) 1972-01-05
ES198368Y (es) 1975-11-01
PL73368B1 (xx) 1974-08-30
FR2085948A1 (xx) 1971-12-31
FR2085948B1 (xx) 1975-07-04
CH522539A (de) 1972-06-30
ZA712049B (en) 1971-12-29
GB1306686A (en) 1973-02-14
AU2725671A (en) 1972-10-05
DK122945B (da) 1972-05-01
NL7104820A (xx) 1971-10-12

Similar Documents

Publication Publication Date Title
US3744529A (en) Extruded plastics netting
US3384530A (en) Extruded plastic net, method of making the same and sack made of said net
US6391420B1 (en) Bicomponent elastomeric netting
US4152479A (en) Method of orienting sheet plastic net and article produced therefrom
US4241123A (en) Non-woven netting
PT82955B (pt) Processo e dispositivo para a realizacao de peliculas com paredes com aberturas
IE48701B1 (en) Plastics material mesh structure
GB1521034A (en) Molecularly oriented plastics material mesh
US3724198A (en) Method for preparing spun yarns
GB1225589A (xx)
US3952127A (en) Extrusion of plastics netting
US4286429A (en) Polypropylene endless loop and the method therefor
US3163691A (en) Process and apparatus for three layer net extrusion
US4353956A (en) Helical net
US3832270A (en) Heat shrinkage,oriented laminated plastic film
US3746608A (en) Shaped article of synthetic resin having mechanically disordered orientation
US3632711A (en) Process for combing the opposite sides of a sandwich-like tubular polymeric sheet
US3511901A (en) Fibrillation of plastic film
US3649405A (en) Method of making a laminate with a movable interlayer
US3422616A (en) Manufacture of threads,cords,ropes and like articles
NZ294769A (en) Chain stitches for tubular elastic netting
US4399184A (en) Rip resistant net
GB1103141A (en) Improved fibrous article and method of manufacturing same
US6863765B2 (en) Synthetic decorative grass simulating spanish moss and method for making same
WO1993016870A1 (en) Bicomponent elastomeric netting