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GB905252A - Improvements in and relating to the stretching of plastic net for molecular orientation of the mesh strands - Google Patents

Improvements in and relating to the stretching of plastic net for molecular orientation of the mesh strands

Info

Publication number
GB905252A
GB905252A GB11835/60A GB1183560A GB905252A GB 905252 A GB905252 A GB 905252A GB 11835/60 A GB11835/60 A GB 11835/60A GB 1183560 A GB1183560 A GB 1183560A GB 905252 A GB905252 A GB 905252A
Authority
GB
United Kingdom
Prior art keywords
net
zone
stretching
stretched
intersections
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
GB11835/60A
Inventor
Frank Brian Mercer
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.)
Plastic Textile Accessories Ltd
Original Assignee
Plastic Textile Accessories 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 Plastic Textile Accessories Ltd filed Critical Plastic Textile Accessories Ltd
Priority to GB11835/60A priority Critical patent/GB905252A/en
Priority to BR128089/61A priority patent/BR6128089D0/en
Priority to ES0266273A priority patent/ES266273A1/en
Priority to LU39974D priority patent/LU39974A1/xx
Publication of GB905252A publication Critical patent/GB905252A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/04Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • B29C55/08Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique transverse to the direction of feed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34Auxiliary operations
    • B29C44/36Feeding the material to be shaped
    • B29C44/38Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/44Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
    • B29C44/445Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/05Filamentary, e.g. strands
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/13Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/023Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets using multilayered plates or sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001Combinations of extrusion moulding with other shaping operations
    • B29C48/0018Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00Tubular articles
    • B29L2023/001Tubular films, sleeves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2028/00Nets or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Artificial Filaments (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

905,252. Finishing fabrics; netted fabrics. PLASTIC TEXTILE ACCESSORIES Ltd. March 21, 1961 [April 4, 1960], No. 11835/60. Classes 42 (1) and 74 (1). The net strands of an extruded plastic net are molecularly orientated but the net intersections left substantially unstretched by stretching the net in a direction transverse to the lengthwise extent of the net as considered in its direction of extrusion. The net is stretched by the machine shown in Fig. 1 after the plastic has been fixed or set. The margins of a longitudinally slit tubular net fed from a reel 1 are gripped by stenter clips on endless chains 2, 3 which extend parallel to each other in a zone A, preferably a pre-heating zone, and diverge in a zone B. At the end of zone B fixed or rotary knives 9 sever the margins engaged by the clips, the severed edges being deposited as waste on opening of the clips before they re-enter the zone A. The net passes to driven, pressure rolls 7, preferably warmed to flatten the net intersections i, Fig. 2. If the net to be stretched has diamond-shaped meshes with diagonal lying longitudinally of the net, the stretching elongates the meshes in the direction of the other diagonal so that the strands s lie generally parallel to each other, perpendicular to the net length and linked by thicker intersections at rightangles thereto. A flattened, unslit tubular net may be stretched by the machine of Fig. 1. Specification 836,555 is referred to.
GB11835/60A 1960-04-04 1960-04-04 Improvements in and relating to the stretching of plastic net for molecular orientation of the mesh strands Expired GB905252A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB11835/60A GB905252A (en) 1960-04-04 1960-04-04 Improvements in and relating to the stretching of plastic net for molecular orientation of the mesh strands
BR128089/61A BR6128089D0 (en) 1960-04-04 1961-01-04 IMPROVEMENT IN OR RELATING TO THE STRETCHING OF A PLASTIC NET FOR THE MOLECULAR ORIENTATION OF MESH YARNS
ES0266273A ES266273A1 (en) 1960-04-04 1961-04-04 Improvements in and relating to the stretching of plastic net for molecular orientation of the mesh strands
LU39974D LU39974A1 (en) 1960-04-04 1961-04-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11835/60A GB905252A (en) 1960-04-04 1960-04-04 Improvements in and relating to the stretching of plastic net for molecular orientation of the mesh strands

Publications (1)

Publication Number Publication Date
GB905252A true GB905252A (en) 1962-09-05

Family

ID=9993589

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11835/60A Expired GB905252A (en) 1960-04-04 1960-04-04 Improvements in and relating to the stretching of plastic net for molecular orientation of the mesh strands

Country Status (4)

Country Link
BR (1) BR6128089D0 (en)
ES (1) ES266273A1 (en)
GB (1) GB905252A (en)
LU (1) LU39974A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2311648A1 (en) * 1975-05-23 1976-12-17 Mercer Ltd F B APPARATUS FOR STRETCHING STRIPS OF SHEET MATERIAL
US4082831A (en) * 1977-05-23 1978-04-04 Daito Seimo Coshi Kaisha Method of making a multi-level flower supporting net assembly
FR2405805A1 (en) * 1977-10-17 1979-05-11 Mercer Patents Ltd CROSS-STRETCHING PLASTIC STRIPS
US4808358A (en) * 1986-08-07 1989-02-28 R D B Plastotecnica S.P.A. Process to obtain molecular orientations in perforated plates made of extruded plastic material
EP2277682A3 (en) * 2001-05-31 2016-08-31 3M Innovative Properties Co. Process and apparatus for making transversely drawn films with substantially uniaxial orientation

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2311648A1 (en) * 1975-05-23 1976-12-17 Mercer Ltd F B APPARATUS FOR STRETCHING STRIPS OF SHEET MATERIAL
US4082831A (en) * 1977-05-23 1978-04-04 Daito Seimo Coshi Kaisha Method of making a multi-level flower supporting net assembly
FR2405805A1 (en) * 1977-10-17 1979-05-11 Mercer Patents Ltd CROSS-STRETCHING PLASTIC STRIPS
US4808358A (en) * 1986-08-07 1989-02-28 R D B Plastotecnica S.P.A. Process to obtain molecular orientations in perforated plates made of extruded plastic material
EP2277682A3 (en) * 2001-05-31 2016-08-31 3M Innovative Properties Co. Process and apparatus for making transversely drawn films with substantially uniaxial orientation
US10913199B2 (en) 2001-05-31 2021-02-09 3M Innovative Properties Company Processes and apparatus for making transversely drawn films with substantially uniaxial character

Also Published As

Publication number Publication date
LU39974A1 (en) 1961-06-28
ES266273A1 (en) 1961-08-16
BR6128089D0 (en) 1973-02-27

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