GB1110051A - Improvements in and relating to the production of net-like fabrics from plastic material - Google Patents

Improvements in and relating to the production of net-like fabrics from plastic material

Info

Publication number
GB1110051A
GB1110051A GB3780863A GB3780863A GB1110051A GB 1110051 A GB1110051 A GB 1110051A GB 3780863 A GB3780863 A GB 3780863A GB 3780863 A GB3780863 A GB 3780863A GB 1110051 A GB1110051 A GB 1110051A
Authority
GB
United Kingdom
Prior art keywords
sheet
see figs
net
grooved
extrusion
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
GB3780863A
Inventor
Albert George Patchell
Ronald Lloyd
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.)
Smith and Nephew PLC
TJ Smith and Nephew Ltd
Original Assignee
Smith and Nephew PLC
TJ Smith and Nephew 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 Smith and Nephew PLC, TJ Smith and Nephew Ltd filed Critical Smith and Nephew PLC
Priority to GB3780863A priority Critical patent/GB1110051A/en
Publication of GB1110051A publication Critical patent/GB1110051A/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
    • B29C59/00Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/022Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing characterised by the disposition or the configuration, e.g. dimensions, of the embossments or the shaping tools therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D28/00Producing nets or the like, e.g. meshes, lattices
    • 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
    • B29C59/00Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/04Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts

Abstract

1,110,051. Making nets: making non woven net-like fabrics: film extrusion dies: making reticulated films. T. J. SMITH & NEPHEW Ltd. 21 Dec., 1964 [25 Sept., 1963], No. 37808/63. Headings B5A and B5B. Net-like plastic material is formed by grooving a sheet 45 on both sides so that, at the cross over points 50 of the grooves 46, 47, the sheet is drastically reduced in thickness. The grooved sheet is then biaxially stressed or stretched, first in one direction (see Figs. 15-17, not shown), so as to cold draw the parts of reduced thickness into a fibrous state 52, and then in a direction at right angles, so as to split the sheet in the region of the fibre, and to distort the splits into shaped holes (see Figs. 19 and 20, not shown). The grooved sheet may be formed between helically or otherwise grooved rollers (Fig. 2, not shown), by extrusion through an annular die comprising inner and outer relatively rotatable rings 33, 34, having groove forming ridges 35, 36 (see Figs. 6 and 7, not shown), or by extrusion between two linearly reciprocable ridged die plates 42, 43, (see Fig. 9, not shown).
GB3780863A 1963-09-25 1963-09-25 Improvements in and relating to the production of net-like fabrics from plastic material Expired GB1110051A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3780863A GB1110051A (en) 1963-09-25 1963-09-25 Improvements in and relating to the production of net-like fabrics from plastic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3780863A GB1110051A (en) 1963-09-25 1963-09-25 Improvements in and relating to the production of net-like fabrics from plastic material

Publications (1)

Publication Number Publication Date
GB1110051A true GB1110051A (en) 1968-04-18

Family

ID=10399147

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3780863A Expired GB1110051A (en) 1963-09-25 1963-09-25 Improvements in and relating to the production of net-like fabrics from plastic material

Country Status (1)

Country Link
GB (1) GB1110051A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2152870A (en) * 1984-01-19 1985-08-14 Smith & Nephew Ass Apertured film process
US4596738A (en) * 1983-10-22 1986-06-24 Smith And Nephew Associated Companies P.L.C. Polymer blend films
US5156495A (en) 1978-10-16 1992-10-20 P. L. G. Research Limited Plastic material mesh structure
US5419659A (en) 1978-10-16 1995-05-30 P.L.G. Research Limited Plastic material mesh structure
WO1999067081A1 (en) * 1998-06-24 1999-12-29 Tredegar Film Products Corporation Stretchable film having elongated apertures

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5156495A (en) 1978-10-16 1992-10-20 P. L. G. Research Limited Plastic material mesh structure
US5419659A (en) 1978-10-16 1995-05-30 P.L.G. Research Limited Plastic material mesh structure
US4596738A (en) * 1983-10-22 1986-06-24 Smith And Nephew Associated Companies P.L.C. Polymer blend films
GB2152870A (en) * 1984-01-19 1985-08-14 Smith & Nephew Ass Apertured film process
WO1999067081A1 (en) * 1998-06-24 1999-12-29 Tredegar Film Products Corporation Stretchable film having elongated apertures

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