GB1303971A - - Google Patents

Info

Publication number
GB1303971A
GB1303971A GB65671A GB65671A GB1303971A GB 1303971 A GB1303971 A GB 1303971A GB 65671 A GB65671 A GB 65671A GB 65671 A GB65671 A GB 65671A GB 1303971 A GB1303971 A GB 1303971A
Authority
GB
United Kingdom
Prior art keywords
pair
film
roller
microinches
jan
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
GB65671A
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 filed Critical
Publication of GB1303971A publication Critical patent/GB1303971A/en
Expired legal-status Critical Current

Links

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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • 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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • B29C55/06—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
    • 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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73923—Organic polymer substrates
    • G11B5/73927—Polyester substrates, e.g. polyethylene terephthalate
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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

Abstract

1303971 Embossing E I DU PONT DE NEMOURS & CO 6 Jan 1971 [6 Jan 1970] 19 Aug 1970] 656/71 Heading B6J Biaxially oriented polyester film is rendered suitable for winding into uniform stable rolls by producing on one surface a multiplicity of transverse ridges having a length-to-width ratio greater than 1 : 1 and a peak-to-valley height of at least 10 microinches. The film is passed through the nip of a pair of slowly rotating rollers and then between radiant heaters to a pair of faster rotating rollers to be stretched longitudinally. One of the second pair of rollers is an embossing roller which has been roughened and provided with a pattern having a total surface variation of 150-600 microinches. The other of the second pair may have a silicone rubber finish and is kept cool, e.g. at 90‹ C., by contact with a cooling roller. The film is passed over a quench roller at about 15‹ C., and is then transversely stretched.
GB65671A 1970-01-06 1971-01-06 Expired GB1303971A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US98570A 1970-01-06 1970-01-06
US6529170A 1970-08-19 1970-08-19

Publications (1)

Publication Number Publication Date
GB1303971A true GB1303971A (en) 1973-01-24

Family

ID=26668385

Family Applications (1)

Application Number Title Priority Date Filing Date
GB65671A Expired GB1303971A (en) 1970-01-06 1971-01-06

Country Status (7)

Country Link
BE (1) BE761230A (en)
CA (1) CA965920A (en)
DE (1) DE2100330C3 (en)
FR (1) FR2116335B1 (en)
GB (1) GB1303971A (en)
LU (1) LU62376A1 (en)
NL (1) NL7100009A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5589247A (en) * 1992-12-22 1996-12-31 Minnesota Mining And Manufacturing Company Magnetic recording medium having an embossed backcoat layer
EP1475217A1 (en) * 2003-05-08 2004-11-10 Fuji Photo Film Co., Ltd. Antiglare film, method of producing the same, anti-reflection film, polarizing plate, and image display device
US7018730B2 (en) * 2003-12-08 2006-03-28 Imation Corp. Data storage tape with patterned surface

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2833982A1 (en) * 1978-08-03 1980-02-21 Hoechst Ag METHOD FOR PRINTING THERMOPLASTIC PLASTIC FILMS
EP0104020A3 (en) * 1982-09-09 1986-06-11 Aeci Limited Handling and/or processing of continuous, moving web and method of and apparatus for winding up and embossing such web
WO1984002419A1 (en) * 1982-12-06 1984-06-21 Comtech Res Unit Improvements relating to data storage and recording
CA2068908C (en) * 1992-05-19 2000-06-27 Donald J. Salzsauler Stretch film
JP5812000B2 (en) * 2011-03-22 2015-11-11 東レ株式会社 Film stretching method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5589247A (en) * 1992-12-22 1996-12-31 Minnesota Mining And Manufacturing Company Magnetic recording medium having an embossed backcoat layer
US5686142A (en) * 1992-12-22 1997-11-11 Minnesota Mining And Manufacturing Company Process of producing magnetic recording tape having textured backcoat
EP1475217A1 (en) * 2003-05-08 2004-11-10 Fuji Photo Film Co., Ltd. Antiglare film, method of producing the same, anti-reflection film, polarizing plate, and image display device
US7018730B2 (en) * 2003-12-08 2006-03-28 Imation Corp. Data storage tape with patterned surface

Also Published As

Publication number Publication date
NL7100009A (en) 1971-07-08
DE2100330B2 (en) 1974-07-04
CA965920A (en) 1975-04-15
LU62376A1 (en) 1971-07-30
BE761230A (en) 1971-07-05
FR2116335A1 (en) 1972-07-13
DE2100330A1 (en) 1971-07-22
FR2116335B1 (en) 1975-02-21
DE2100330C3 (en) 1975-02-27

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee