WO2002043970A2 - Dispositif destine a l'adhesion electrostatique d'un film encreur sur des objets - Google Patents
Dispositif destine a l'adhesion electrostatique d'un film encreur sur des objets Download PDFInfo
- Publication number
- WO2002043970A2 WO2002043970A2 PCT/EP2001/014201 EP0114201W WO0243970A2 WO 2002043970 A2 WO2002043970 A2 WO 2002043970A2 EP 0114201 W EP0114201 W EP 0114201W WO 0243970 A2 WO0243970 A2 WO 0243970A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- accordance
- film
- adhesion
- sack
- vacuum
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
- B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
- B44C1/17—Dry transfer
-
- 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
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/0043—Fixing the layers by electrostatic charges, by the use of structured surfaces or by mechanical means
-
- 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
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/0056—Provisional sheathings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
- B41M5/035—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet by sublimation or volatilisation of pre-printed design, e.g. sublistatic
- B41M5/0358—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet by sublimation or volatilisation of pre-printed design, e.g. sublistatic characterised by the mechanisms or artifacts to obtain the transfer, e.g. the heating means, the pressure means or the transport means
-
- 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
- B29C53/36—Bending and joining, e.g. for making hollow articles
- B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
- B29C53/48—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively
Definitions
- the present invention relates to a device and a process for the formation of a sack with a film of electrically insulating material enclosing an object and its prior adhesion to said object by the use of electrostatic attraction forces .
- the industry branch of decoration of objects of any type and form by the process of sublimation of inks reproducing the drawing it is wished to transfer the need to be able to cause adherence of said film to the object to be decorated in a precise and continuous manner is strongly felt to avoid the formation of folds, wrinkles and bubbles of said film on the surface of the object which once the drawing is transferred would cause loss of the continuity thereof just in the above mentioned zones-
- the film is made to adhere to the surface of the object by the application of a vacuum so that it is easy to infer that as there is no possibility of guiding the film on the surface of the object the adhering film would display just the shortcomings mentioned.
- the process of adhesion and vacuum formation is broken into two successive steps, as follows.
- a first step a light vacuum is formed so that adhesion of said film to the support would allow appropriate rearrangement of the film by hand by several workers so that it would have no defects of overlapping or zones where the film would not adhere because of air bubbles .
- the necessary vacuum to ensure full adhesion of the film to the object is created so as to send it into an oven whose temperature would be suited to the process of transfer of the inks representing the drawing by sublimation.
- a first method of ensuring adhesion of the sheet to the section shape consists of manually winding the film around it and then introducing it between two planes of the right size, seven or eight meters, made up of two elastic and impermeable membranes .
- peripheral perimeters of the various sections have many shapes, the same number of counter- shapes would be needed with an unacceptable increase in tooling and production costs.
- a simpler technique for making the sheets adhere to the sections is to use known machine types to create a sack enclosing the section.
- This sack is constructed by means of a sheet of inked film on which the section is laid.
- the first step involves the use of low suction to create a vacuum inside the sack so that the adherence thereof to the section surface is light.
- the workers can operate manually to appropriately smooth any folds which might be formed and adapt the film to the section profile by hand.
- suction is increased to make the film perfectly integral with the section surface.
- a device for the prior adhesion of inked film sacks for transfer by sublimation of a graphic representation onto objects comprising means for vacuum creation, means for the creation of electrical charges, means for transfer of said charges to the inked film and means for forcing the inked and electrostatically charged film into the surface recesses of said objects.
- FIG. 1 shows diagrammatically a side elevation of a machine with known technology used for the formation of sacks of appropriate materials.
- the machine is to form a sack by means of an inked film around a metallic section which is to be decorated by sublimation.
- FIG 1 shows a diagrammatic plan view of the machine of FIG 1
- FIG 3 shows an axono etric projection of the new invention as a means of sack formation seen in some of its details after functional changes applied to a machine similar to the one of FIG 1,
- -FIG 4 shows an enlarged view of the simple structure of the sack forming means
- -FIG 5 shows a view of the input side of the film of the means mentioned in FIG 4 ,
- FIG. 6 shows a side elevation of the machine built with the new forming means
- FIG. 7 shows a plan view of the machine of FIG 6. The operation of one of these machines is summarized as follows.
- the section (1) is laid on the running belt (2) on which is deposited the plastic film (3) which before deposit thereon of the section (1) is passed through the forming means of said sack (6).
- FIG 1 which is a side perspective view is seen the cylinder from which the film (7) is unwound, a tightener for the film (8), the opposition roller (9) and the motor for unwinding the film (10).
- the film passes through the pairs of guides (4) and (5) FIG 2, arranged on the two sides of the film, enters the sack forming means (6) made up of two metallic plates, upper internal (12) and lower external (13), shaped, superimposed and arranged diagrammatically in accordance with FIG 4 so that they leave a space (14) inside the geometrical solid of which they are composed.
- the inked film passes through the space (14) between the two metallic plates of the means (6).
- At the outlet its upper edges are entrained by the three pairs of opposed wheels (15) and (16) which rotate with tangential speed equal approximately to the speed of translation of the running belt (2) of FIGS 1 and 2.
- the section (1) entrained by the belt (2) passes into the sack forming means (6) running on the upper surface of its metallic plate (12) and meeting at the outlet the film (3) running between the two plates (12) and (13) forming the surfaces of the means (6).
- the lower part of the section rests on the film while the two edges of the upper part of said film are welded together by both-sides- adhesive tape, by heat or by an ultrasound welder (17) swinging against the opposing wheel (18) thus forming a tubular sack (27) open only at the ends and designed to enclose the section, FIG 1.
- another running belt (11) pulls the assembly made up the plastic film sack (27) and the section (1) until it frees the forming means (6).
- the sack is cut at an appropriate distance from the outlet mouth (20), FIG 2, of the forming means (6) and from the end of the section to allow resumption of the production process with the next section, FIGS 1 and 2.
- the sack containing the section is taken by the workers and deposited on a bed traversing on rails which once a certain number of deposited sections is reached allows transportation thereof into an appropriate oven whose temperature is capable of starting the sublimation process.
- the sacks Before being introduced into the oven the sacks are connected at the ends to appropriate suction means to . create a vacuum so that the film of which they are made can adhere to the surface of the sections . Then by means of the bed on which they were deposited the sacks are placed in the baking oven for sublimation of the inks and transfer of the drawing. It is clear that this type of industrial process implies the shortcomings mentioned of folds and possibly bubbles due to the imperfect adherence to the section surface with the resulting manual work by the workers to remedy the sack malformations.
- the invention consists of a device allowing sacking and shaped prior adhesion of the film to the section surface. Said adhesion is achieved by formation of a slight vacuum and an electrostatic charge deposited on one of the film surfaces.
- Mechanical means stretch and adapt the film to allow its adhesion to the section surface without formation of folds and overlapping of the drawing to be transferred before its deposit on the carriage which allows its final processing without further costly manual operations.
- FIG 4 is a perspective view showing the known sack forming means (6) with the film (3) formed by the lower (12) and upper (13) metal plates detached from each other so that, in the space between them (14) passage of the film on the input (19) and output (20) sides is allowed.
- the upper part (13) of the forming means (6) is advantageously modified so that, being usually open in the prior art, it is closed above by a cover (25) on which is engaged a small suction hood (21) connected by a tube (22) to a suction blower (23) which discharges the sucked air through the vent (24)
- the input side (19) of the forming means (6) is closed by two sets of flexible blades (39) which depart from the upper inlet edge ( 26 ) of the side (19) and terminate at the height of the belt plane (2) on which the film (3) runs, FIG 5.
- the purpose of the flexible blades is to partially close this side to the air sucked by the hood (21).
- FIG 5 the flexible blades are arranged by bending along the edges of the section ( 1 ) so as to leave little free space for suction of the air which is thus sucked mainly from the interior of the sack being made.
- an ultrasound welder (17) closes the upper edges of the film so as to form a tubular sack inside which there is the aluminum section, FIGS 3, 6 and 7.
- a brush (29) of conductive material shaped so as to touch the lower surface of the film in contact with the section, FIGS 3, 6, 7.
- the brushes (30) are installed on pins driven by a variable speed motor and each unit of two is counter-rotating so as to apply traction in addition to pressure on the wrapping film so as to stretch any wrinkles and overlapping, FIGS 3 and 6.
- a last brush (38) again charges electrostatically the entire surface of the already formed sack to force it to adhere further to the section.
- the electrical charges deposited thereon preserve the sought adherence long enough so that once the sack is cut at the end of the section the workers can arrange it on the bed where it is to be subjected to a final vacuum before being sent into the sublimation oven.
- the present invention as described is susceptible of numerous changes and construction variants falling within the scope of the inventive concept allowing for construction variants due to the certain disparity of surface shape of the objects it is desired to decorate and to the manner of depositing the electrical charges on the film surface or the mechanical processes for pushing said film even into the more hidden recesses of said objects.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Packages (AREA)
- Making Paper Articles (AREA)
- Decoration By Transfer Pictures (AREA)
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002216069A AU2002216069A1 (en) | 2000-11-30 | 2001-11-29 | Device for electrostatic adhesion of inked film onto objects |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI20002580 ITMI20002580A1 (it) | 2000-11-30 | 2000-11-30 | Dispositivo per la formazione di un sacchetto con film di materiale elettricamente isolante racchiudente al suo interno un oggetto e della s |
ITMI2000A002580 | 2000-11-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002043970A2 true WO2002043970A2 (fr) | 2002-06-06 |
WO2002043970A3 WO2002043970A3 (fr) | 2003-08-07 |
Family
ID=11446151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/014201 WO2002043970A2 (fr) | 2000-11-30 | 2001-11-29 | Dispositif destine a l'adhesion electrostatique d'un film encreur sur des objets |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2002216069A1 (fr) |
IT (1) | ITMI20002580A1 (fr) |
WO (1) | WO2002043970A2 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006037506A1 (fr) * | 2004-10-06 | 2006-04-13 | Lasa Impianti S.R.L. | Procede et equipement de decoration en continu de formes structurales par sublimation |
WO2007129210A3 (fr) * | 2006-05-10 | 2009-02-26 | Viv Int Spa | Appareils et procédés pour décorer des objets |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2626772A1 (de) * | 1975-07-02 | 1977-01-27 | Stork Brabant Bv | Verfahren und einrichtung zum transferdruck |
EP0455849A1 (fr) * | 1990-05-08 | 1991-11-13 | POLYTREND GESELLSCHAFT FÜR POLYMERE WERKSTOFFE & OBERFLÄCHENTECHNIK MBH | Méthode et appareil pour le transfert d'une décoration en couleur à un substrat plastique ou à un substrat plastique décoré |
EP0721886A1 (fr) * | 1995-01-13 | 1996-07-17 | Burton's Gold Medal Biscuits Limited | Machine pour emballer des articles dans une bande conformée en tube |
WO1996029208A1 (fr) * | 1995-03-22 | 1996-09-26 | Verniciatura Industriale Veneta S.P.A. | Procede de fabrication d'elements profiles, extrudes, decores |
EP0888905A2 (fr) * | 1997-07-04 | 1999-01-07 | V.I.V. International S.p.A. | Procédé et appareil pour imprimer et décorer avec des encres sublimables |
EP0950540A2 (fr) * | 1998-04-15 | 1999-10-20 | V.I.V. International S.p.A. | Procédé de fabrication des objets issus de l'artisanat peints et/ou décorés différemment de façon variée par transfert de couleurs sublimables |
EP0953457A2 (fr) * | 1998-04-30 | 1999-11-03 | Giovanni Bortolato | Appareil et procédé pour transferrer des représentations graphiques sur un objet par sublimation |
-
2000
- 2000-11-30 IT ITMI20002580 patent/ITMI20002580A1/it unknown
-
2001
- 2001-11-29 AU AU2002216069A patent/AU2002216069A1/en not_active Abandoned
- 2001-11-29 WO PCT/EP2001/014201 patent/WO2002043970A2/fr not_active Application Discontinuation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2626772A1 (de) * | 1975-07-02 | 1977-01-27 | Stork Brabant Bv | Verfahren und einrichtung zum transferdruck |
EP0455849A1 (fr) * | 1990-05-08 | 1991-11-13 | POLYTREND GESELLSCHAFT FÜR POLYMERE WERKSTOFFE & OBERFLÄCHENTECHNIK MBH | Méthode et appareil pour le transfert d'une décoration en couleur à un substrat plastique ou à un substrat plastique décoré |
EP0721886A1 (fr) * | 1995-01-13 | 1996-07-17 | Burton's Gold Medal Biscuits Limited | Machine pour emballer des articles dans une bande conformée en tube |
WO1996029208A1 (fr) * | 1995-03-22 | 1996-09-26 | Verniciatura Industriale Veneta S.P.A. | Procede de fabrication d'elements profiles, extrudes, decores |
EP0888905A2 (fr) * | 1997-07-04 | 1999-01-07 | V.I.V. International S.p.A. | Procédé et appareil pour imprimer et décorer avec des encres sublimables |
EP0950540A2 (fr) * | 1998-04-15 | 1999-10-20 | V.I.V. International S.p.A. | Procédé de fabrication des objets issus de l'artisanat peints et/ou décorés différemment de façon variée par transfert de couleurs sublimables |
EP0953457A2 (fr) * | 1998-04-30 | 1999-11-03 | Giovanni Bortolato | Appareil et procédé pour transferrer des représentations graphiques sur un objet par sublimation |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006037506A1 (fr) * | 2004-10-06 | 2006-04-13 | Lasa Impianti S.R.L. | Procede et equipement de decoration en continu de formes structurales par sublimation |
US7931770B2 (en) | 2004-10-06 | 2011-04-26 | Lasa Impianti, S.r.l. | Process and equipment for continuous decoration of structural shapes by sublimation |
WO2007129210A3 (fr) * | 2006-05-10 | 2009-02-26 | Viv Int Spa | Appareils et procédés pour décorer des objets |
US8726964B2 (en) | 2006-05-10 | 2014-05-20 | Decoral System Usa Corp. | Apparatuses and methods for decorating objects |
Also Published As
Publication number | Publication date |
---|---|
ITMI20002580A1 (it) | 2002-05-30 |
AU2002216069A1 (en) | 2002-06-11 |
WO2002043970A3 (fr) | 2003-08-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3658629A (en) | Photopolymer resist sheet laminator | |
GR3001511T3 (en) | Method for manufacturing a tyre on a rigid support using rubbery products, applying apparatus according to such a method and machine using such an apparatus | |
US3496043A (en) | Method of manufacturing an embossed laminated foam | |
WO2002043970A2 (fr) | Dispositif destine a l'adhesion electrostatique d'un film encreur sur des objets | |
JPH035245B2 (fr) | ||
AU685473B2 (en) | Continuous forming method and device for a composite structure, in particular a composite structure featuring tree-dimensional fabric | |
JPH07115084B2 (ja) | 金属薄板材成形ロ−ル装置 | |
CN214082851U (zh) | 一种彩钢岩棉夹芯板加工用覆膜装置 | |
CN210100684U (zh) | 一种保护膜加工用除皱装置 | |
CN218084270U (zh) | 一种改良型环保电晕处理机 | |
CN210417112U (zh) | 一种全自动贴侧膜机 | |
JPS6333124A (ja) | 金属薄板材成形ロ−ル装置 | |
JPH0755518B2 (ja) | 射出同時絵付成形方法 | |
US3783069A (en) | Method and apparatus for producing fibrous tubular articles | |
CN219647980U (zh) | 一种缠绕膜生产用的上胶装置 | |
CN218055936U (zh) | 一种全自动套膜收缩机 | |
CN219338641U (zh) | 一种装饰材料类肤感膜转移装置 | |
JPS6316815A (ja) | 金属薄板材成形ロ−ル装置 | |
KR930007209Y1 (ko) | 약 포대의 제조장치 | |
US3814649A (en) | Apparatus for covering elongate members | |
CN216547090U (zh) | 塑胶电子玩具热循环收缩包装机 | |
CN219650392U (zh) | 一种薄膜加工用的烘干设备 | |
JPS6361169B2 (fr) | ||
US3563827A (en) | Method of manufacturing a decorative vinyl surface | |
CN218020134U (zh) | 一种pvc薄膜覆膜用卷取机的压纹装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
122 | Ep: pct application non-entry in european phase | ||
NENP | Non-entry into the national phase in: |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: JP |