GB1384352A - Surface treatment of plastics - Google Patents

Surface treatment of plastics

Info

Publication number
GB1384352A
GB1384352A GB715273A GB715273A GB1384352A GB 1384352 A GB1384352 A GB 1384352A GB 715273 A GB715273 A GB 715273A GB 715273 A GB715273 A GB 715273A GB 1384352 A GB1384352 A GB 1384352A
Authority
GB
United Kingdom
Prior art keywords
flame
electrode
treatment
potential
film
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
GB715273A
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Publication of GB1384352A publication Critical patent/GB1384352A/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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/08—Surface shaping of articles, e.g. embossing; Apparatus therefor by flame treatment ; using hot gases

Landscapes

  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

1384352 Surface treatment of films TORAY INDUSTRIES Inc 14 Feb 1973 [16 Feb 1972] 7152/73 Heading B5B A method for surface treatment of a plastics material comprises passing a surface of a plastics material, especially a film 5 through a flame 7 having an electric potential different from that of the surface. The flame may be charged by an electrode connected to a source of direct current having a positive potential, or a negative potential, or of alternating current or a current having in alternation a high and low potential of the same polarity, e.g. alternating current superposed on direct current. Suitably the potential difference between the surface and the flame is 100 v to 20 kv, especially less than 4 kv. As shown film 5 which may be biaxially oriented, uniaxially oriented or non-oriented is passed through the flame 7 by means of an earthed chill roller 6 which may be water cooled. In Fig. 1 the burner 3 functions as electrode; in Fig. 2 the generator 1 is connected both to the burner 3 and to a separate electrode 4; in Fig. 3 (not reproduced) the generator is connected only to an electrode 4. Examples describe the treatment of polypropylene film using a propane: oxygen flame. Treatment enhances the bonding properties of the surface so that it may be joined more easily to other materials.
GB715273A 1972-02-16 1973-02-14 Surface treatment of plastics Expired GB1384352A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1562672A JPS4885269A (en) 1972-02-16 1972-02-16

Publications (1)

Publication Number Publication Date
GB1384352A true GB1384352A (en) 1975-02-19

Family

ID=11893905

Family Applications (1)

Application Number Title Priority Date Filing Date
GB715273A Expired GB1384352A (en) 1972-02-16 1973-02-14 Surface treatment of plastics

Country Status (2)

Country Link
JP (1) JPS4885269A (en)
GB (1) GB1384352A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2205273A (en) * 1987-05-21 1988-12-07 Gunze Kk Food-packaging material and process for preparing the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58103617A (en) * 1981-12-15 1983-06-20 Kanegafuchi Chem Ind Co Ltd Method and meter for detecting level of powder and granule

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2205273A (en) * 1987-05-21 1988-12-07 Gunze Kk Food-packaging material and process for preparing the same
US4888223A (en) * 1987-05-21 1989-12-19 Noritsugu Sugimoto Food-packaging material and process for preparing the same
GB2205273B (en) * 1987-05-21 1990-07-25 Gunze Kk Food-packaging material and process for preparing the same

Also Published As

Publication number Publication date
JPS4885269A (en) 1973-11-12

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Legal Events

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