GB877908A - Treating of thermoplastic tubes - Google Patents

Treating of thermoplastic tubes

Info

Publication number
GB877908A
GB877908A GB5637/60A GB563760A GB877908A GB 877908 A GB877908 A GB 877908A GB 5637/60 A GB5637/60 A GB 5637/60A GB 563760 A GB563760 A GB 563760A GB 877908 A GB877908 A GB 877908A
Authority
GB
United Kingdom
Prior art keywords
tube
electrode
mandrel
corona discharge
corona
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
GB5637/60A
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.)
Primerica Inc
Original Assignee
American Can Co
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 American Can Co filed Critical American Can Co
Publication of GB877908A publication Critical patent/GB877908A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/08—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces
    • B41F17/14—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length
    • B41F17/18—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length on curved surfaces of articles of varying cross-section, e.g. bottles, lamp glasses
    • 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
    • B29C59/10—Surface shaping of articles, e.g. embossing; Apparatus therefor by electric discharge treatment
    • B29C59/103—Surface shaping of articles, e.g. embossing; Apparatus therefor by electric discharge treatment of profiled articles, e.g. hollow or tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/005—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing of non-flat articles

Abstract

877,908. Printing processes. AMERICAN CAN CO. Feb. 17, 1960 [May 21, 1959], No. 5637/60. Class 100(2) [Also in Group XL(a) ] The surface of thermoplastic, e.g. polyethylene, tubing or tubular containers is rendered receptive to coating or printing by subjection to an electric corona discharge, the voltage being applied between a conductive rotating mandrel 15, Fig. 4, on which the tube or container T is fitted and an elongated electrode 33. The corona treating step may take place at one station of a rotating turret printing machine for applying various finishing operations to the tube or container. The corona electrode 33 is adjustably mounted in screw sockets 39 for varying the air gap. The electrode 33 may also be made up of slidable parts to accommodate tubes of different lengths. The end of the electrode 33 may be upturned to treat the breast portion of the tube T or a separate corona discharge may be applied to this portion. Arrangements may be made for subjecting the inner surface of the tube also to a corona discharge. In Fig. 5 the mandrel 59 is provided with one or more enlarged collars 61, 65 to space the tube T from the major portion of the mandrel. The outer surfaces of the collars 61, 65 are pitted by knurling or grooving to provide air gaps at these regions with a minimum area of contact with the tube.
GB5637/60A 1959-05-21 1960-02-17 Treating of thermoplastic tubes Expired GB877908A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US877908XA 1959-05-21 1959-05-21

Publications (1)

Publication Number Publication Date
GB877908A true GB877908A (en) 1961-09-20

Family

ID=22207285

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5637/60A Expired GB877908A (en) 1959-05-21 1960-02-17 Treating of thermoplastic tubes

Country Status (1)

Country Link
GB (1) GB877908A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4892271A (en) * 1987-10-14 1990-01-09 British Aerospace Plc Corona discharge surface treatment and aircraft cockpit canopies so treated

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4892271A (en) * 1987-10-14 1990-01-09 British Aerospace Plc Corona discharge surface treatment and aircraft cockpit canopies so treated

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