FR2361214A2 - Production de pellicules thermoplastiques - Google Patents
Production de pellicules thermoplastiquesInfo
- Publication number
- FR2361214A2 FR2361214A2 FR7724206A FR7724206A FR2361214A2 FR 2361214 A2 FR2361214 A2 FR 2361214A2 FR 7724206 A FR7724206 A FR 7724206A FR 7724206 A FR7724206 A FR 7724206A FR 2361214 A2 FR2361214 A2 FR 2361214A2
- Authority
- FR
- France
- Prior art keywords
- leader
- sent
- strips
- web
- discharge
- 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.)
- Granted
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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/002—Joining methods not otherwise provided for
- B29C65/008—Joining methods not otherwise provided for making use of electrostatic charges
-
- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
- B29C48/915—Cooling of flat articles, e.g. using specially adapted supporting means with means for improving the adhesion to the supporting means
- B29C48/9165—Electrostatic pinning
-
- 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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/32—Coiling
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/50—Auxiliary process performed during handling process
- B65H2301/51—Modifying a characteristic of handled material
- B65H2301/513—Modifying electric properties
- B65H2301/5132—Bringing electrostatic charge
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Replacement Of Web Rolls (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Des bandes, comme par exemple des pellicules thermoplastiques, sont collées ensemble par des charges électrostatiques en se déplaçant à des vitesses identiques. Ce procédé est particulièrement intéressant dans la fabrication de pellicules thermoplastiques par exemple en poly(téréphtalate d'éthylène) et, dans une forme d'exécution préférée, facilite l'enfilage de la pellicule après un défaut de fonctionnement, par exemple dans le dispositif de thermofixage. La bande en fabrication est envoyée à une décharge pendant l'opération de collage et de réenfilage au moyen d'une amorce vers le stade suivant, par exemple à la section d'envidage. L'amorce est introduite dans la section d'envidage à une vitesse égale à celle à laquelle la bande en fabrication est envoyée à la décharge et les bandes sont collées l'une à l'autre par dépôt de charges électrostatiques. La bande envoyée à la decharge ainsi que l'amorce sont sectionnées de manière séquentielle.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB33603/76A GB1535389A (en) | 1976-08-12 | 1976-08-12 | Splicing process and apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2361214A2 true FR2361214A2 (fr) | 1978-03-10 |
FR2361214B2 FR2361214B2 (fr) | 1980-04-04 |
Family
ID=10355073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7724206A Granted FR2361214A2 (fr) | 1976-08-12 | 1977-08-05 | Production de pellicules thermoplastiques |
Country Status (9)
Country | Link |
---|---|
US (1) | US4129469A (fr) |
JP (1) | JPS6025348B2 (fr) |
BE (1) | BE857780R (fr) |
DE (1) | DE2732408C2 (fr) |
FR (1) | FR2361214A2 (fr) |
GB (1) | GB1535389A (fr) |
IT (1) | IT1115500B (fr) |
LU (1) | LU77949A1 (fr) |
NL (1) | NL188935B (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8325477D0 (en) * | 1983-09-23 | 1983-10-26 | Ici Plc | Alkali metal silicates |
JPH02185498A (ja) * | 1989-01-13 | 1990-07-19 | Abisare:Kk | プロッタの作図用紙保持方法及びその装置 |
US5201476A (en) * | 1990-05-11 | 1993-04-13 | Paul J. Gelardi | Welded video cassette |
JPH08502138A (ja) * | 1990-05-11 | 1996-03-05 | エルシーブイ アソシエイツ | 溶接型ビデオカセット |
KR19980702975A (ko) * | 1995-03-15 | 1998-09-05 | 애브리데니슨코포레이션 | 제어된 정전기력을 가진 웹 이송기 및 그 방법 |
JP3524985B2 (ja) * | 1995-05-17 | 2004-05-10 | 富士写真フイルム株式会社 | 被走査体の搬送方法および装置 |
DE19716325C2 (de) | 1997-04-18 | 2001-04-26 | Koenig & Bauer Ag | Vorrichtung zum elektrostatischen Aufladen eines mehrlagigen Stranges |
DE10321599A1 (de) * | 2003-05-13 | 2004-12-30 | Windmöller & Hölscher Kg | Wickelvorrichtung mit elektrostatischen Auflademitteln und Verfahren zum Festlegen mehrlagiger Folie |
WO2009029522A2 (fr) * | 2007-08-24 | 2009-03-05 | Ranpak Corp. | Système de conversion de fardage et procédé avec raccordement de matériau brut amélioré |
IT201600130218A1 (it) * | 2016-12-22 | 2018-06-22 | Gambini Spa | Metodo e apparato per la giunzione del velo di una bobina di carta in esaurimento con il lembo iniziale di una nuova bobina. |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE622524A (fr) * | 1960-02-23 | 1900-01-01 | ||
DE1149592B (de) * | 1960-03-22 | 1963-05-30 | Fritz Ungerer Dipl Ing | Verfahren und Vorrichtung zum Beschichten eines durchlaufenden Metallbandes mit Papierband als Zwischen-lage der nach dem Schnitt zu stapelnden Blechtafeln |
NL264252A (fr) * | 1960-05-03 | 1900-01-01 | ||
DE1284534B (fr) * | 1963-06-26 | 1968-12-05 | ||
US3448000A (en) * | 1964-06-10 | 1969-06-03 | Int Paper Co | Coated paper and method of producing the same |
US3892614A (en) * | 1973-03-08 | 1975-07-01 | Simco Co Inc | Electrostatic laminating apparatus and method |
JPS533249Y2 (fr) * | 1974-06-03 | 1978-01-27 | ||
US4038121A (en) * | 1974-10-24 | 1977-07-26 | Imperial Chemical Industries Limited | Production of thermoplastic films |
-
1976
- 1976-08-12 GB GB33603/76A patent/GB1535389A/en not_active Expired
-
1977
- 1977-07-12 US US05/815,027 patent/US4129469A/en not_active Expired - Lifetime
- 1977-07-15 IT IT7725788A patent/IT1115500B/it active
- 1977-07-18 DE DE2732408A patent/DE2732408C2/de not_active Expired
- 1977-08-02 NL NLAANVRAGE7708514,A patent/NL188935B/xx active Search and Examination
- 1977-08-05 FR FR7724206A patent/FR2361214A2/fr active Granted
- 1977-08-10 LU LU77949A patent/LU77949A1/xx unknown
- 1977-08-12 JP JP52096200A patent/JPS6025348B2/ja not_active Expired
- 1977-08-12 BE BE180165A patent/BE857780R/fr not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
LU77949A1 (fr) | 1978-09-14 |
DE2732408A1 (de) | 1978-02-16 |
GB1535389A (en) | 1978-12-13 |
FR2361214B2 (fr) | 1980-04-04 |
DE2732408C2 (de) | 1982-12-09 |
NL7708514A (nl) | 1978-02-14 |
NL188935B (nl) | 1992-06-16 |
BE857780R (fr) | 1978-02-13 |
IT1115500B (it) | 1986-02-03 |
US4129469A (en) | 1978-12-12 |
JPS5322958A (en) | 1978-03-02 |
JPS6025348B2 (ja) | 1985-06-18 |
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