FI97357C - Procedure for shrink shrink film - Google Patents

Procedure for shrink shrink film Download PDF

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Publication number
FI97357C
FI97357C FI944769A FI944769A FI97357C FI 97357 C FI97357 C FI 97357C FI 944769 A FI944769 A FI 944769A FI 944769 A FI944769 A FI 944769A FI 97357 C FI97357 C FI 97357C
Authority
FI
Finland
Prior art keywords
shrink film
resistive
shrink
film
energy
Prior art date
Application number
FI944769A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI944769A (en
FI944769A0 (en
FI97357B (en
Inventor
Jari Ruuttu
Original Assignee
Datalab Oy
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 Datalab Oy filed Critical Datalab Oy
Priority to FI944769A priority Critical patent/FI97357C/en
Publication of FI944769A0 publication Critical patent/FI944769A0/en
Priority to AU36556/95A priority patent/AU3655695A/en
Priority to PCT/FI1995/000562 priority patent/WO1996013434A1/en
Publication of FI944769A publication Critical patent/FI944769A/en
Publication of FI97357B publication Critical patent/FI97357B/en
Application granted granted Critical
Publication of FI97357C publication Critical patent/FI97357C/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/002—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers in shrink 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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/06—Making preforms having internal stresses, e.g. plastic memory
    • B29C61/0608—Making preforms having internal stresses, e.g. plastic memory characterised by the configuration or structure of the preforms
    • B29C61/0625—Preforms comprising incorporated or associated heating 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/346—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint being a coating or being printed, e.g. being applied as a paint or forming a printed circuit
    • 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
    • B29C65/66—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined
    • B29C65/68—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined using auxiliary shrinkable elements
    • 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
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
    • 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
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • B29C66/91651—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux by controlling or regulating the heat generated by Joule heating or induction heating
    • B29C66/91653—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux by controlling or regulating the heat generated by Joule heating or induction heating by controlling or regulating the voltage, i.e. the electric potential difference or electric tension
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • B29C66/91651—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux by controlling or regulating the heat generated by Joule heating or induction heating
    • B29C66/91655—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux by controlling or regulating the heat generated by Joule heating or induction heating by controlling or regulating the current intensity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
    • B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
    • 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
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • B29C65/3432—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding comprising several wires, e.g. in the form of several independent windings
    • 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
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/3444—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint being a ribbon, band or strip
    • B29C65/3452—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint being a ribbon, band or strip forming a sleeve, e.g. a wrap-around sleeve
    • 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
    • B29C66/347—General aspects dealing with the joint area or with the area to be joined using particular temperature distributions or gradients; using particular heat distributions or gradients
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0049—Heat shrinkable

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Laminated Bodies (AREA)

Description

9735797357

Menetelmä kutistekalvon kutistamiseksi - Förfarande för att krympa krympfolie Tämän keksinnön kohteena on menetelmä kutistekalvon kutistamiseksi, jossa kutis-5 tekalvoon aikaansaadaan energiaa tuomalla kutistekalvossa olevaan resistiiviseen alueeseen sähköenergiaa ja kutistekalvossa olevaan mikroaaltoja absorboivaan alueeseen mikro-aaltoja tai muita sentapaisia impulsseja, jotka vaikuttavat suoraan ku-tistekalvoon.The present invention relates to a method for shrinking a shrink film, in which energy is supplied to the shrink film by applying electrical energy to the resistive region in the shrink film and directly to the micro-absorbing region of the shrink film in the shrink film. .

10 Edellä esitetyn lisäksi kutistetaan kutistekalvoja kuumailmapuhaltimella, sätei-lylämmöllä tai uunissa. Epäkohtana näillä kaikilla tunnetuilla menetelmillä on se, että energian kulutus on hyvin korkea. Aika, jossa kutistekalvo kutistuu toivotulla tavalla, riippuu myöskin kuumuudesta eli energiasta. Kutistaminen vie yleensä useampia sekunteja. Keksinnön tarkoituksena on poistaa edellä esitetyt epäkohdat. Kek-15 sinnön mukaiselle menetelmälle on tunnusomaista se, että kutistekalvon pintaan tehdään resistiivisiä painatuksia esimerkiksi offset-menetelmällä. Kokeet ovat osoittaneet, että 12 V:n jännitteellä ja 1 A:n virralla kutistetaan resistiiviseksi aikaansaatu kutistekalvo 200 ms:ssa samaan muotoon, jonka saavuttaminen vie useampia sekunteja uunissa, jonka tehon tarve on 20-kertainen keksintöön verrattuna. Keksinnön 20 avulla saadaan energia suoraan oikeaan kohteeseen eikä hukkalämpöä synny, kuten kaikissa tunnetuissa menetelmissä.In addition to the above, the shrink films are shrunk by a hot air blower, radiant heat or furnace. The disadvantage of all these known methods is that the energy consumption is very high. The time at which the shrink film shrinks as desired also depends on the heat, i.e. the energy. Shrinking usually takes several seconds. The object of the invention is to eliminate the above drawbacks. The method according to the invention of Kek-15 is characterized in that resistive prints are made on the surface of the shrink film, for example by the offset method. Experiments have shown that with a voltage of 12 V and a current of 1 A, the shrink film obtained to resist is shrunk in 200 ms to the same shape, which takes several seconds to achieve in an oven with a power requirement of 20 times that of the invention. The invention 20 provides energy directly to the right target and no waste heat is generated, as in all known methods.

Keksinnön erilaisia sovellutusmuotoja on esitetty epäitsenäisissä patenttivaatimuksissa.Various embodiments of the invention are set out in the dependent claims.

2525

Keksintöä selostetaan seuraavassa esimerkkien avulla viittaamalla oheisiin piirustuksiin, joissa kuvio 1 esittää kutistekalvoa, joka on itsessään resistiivinen, 30 kuvio 2 esittää kutistekalvoa varustettuna pintavastuksilla, kuvio 3 esittää kutistekalvoa varustettuna esimerkiksi offset-painolla tehdyllä vas-tuspinnoitteella, kuvio 4 esittää kutistekalvoa avattuna, kuvio 5 esittää sylinteriksi taivutettua kutistekalvoa, 35 kuvio 6 esittää kutistekalvoa kolikkonipun ympärillä, ja kuviot 7 ja 8 esittävät erilaisia kutistekalvosovellutuksia.The invention will now be described by way of example with reference to the accompanying drawings, in which Fig. 1 shows a shrink film which is itself resistive, Fig. 2 shows a shrink film with surface resistors, Fig. 3 shows a shrink film with, for example, an offset-printed resistance coating, Fig. 4 shows a shrink film shows a shrink film bent into a cylinder, Fig. 6 shows a shrink film around a coin bundle, and Figs. 7 and 8 show different shrink film applications.

97357 297357 2

Kuviossa 1 oleva kutistekalvo on valmistettu siten, että muoviaineeseen 1 on sekoitettu resistiivistä ainetta, joka sähköenergian vaikutuksesta lämpenee ja kutistaa ku-tistekalvon tasaisesti. Kuviossa 2 on kalvon 1 pintaan kiinnitetty pintavastukset 2. Kuviossa 3 on kutistekalvon pintaan tehty resistiivisiä painatuksia 3 offset-menetel-5 mällä. Kutistekalvo voi myöskin olla monikerroksinen, joista yksi kerros on resis-tiivinen. Resistiiviseen alueeseen johdetaan matalajännitesähköä, kuten 12-24 V. Kuvioissa on esitetty tasajännite, mutta jännite voi yhtä hyvin olla vaihtojännite. Kutistekalvoon 1 on kiinnitetty kontaktipinnat 4, 5, joihin sähkö johdetaan ja joista se kulkeutuu resistiiviseen alueeseen. Kuviossa 7 on esitetty, miten resistiivinen alue 10 6 on korostettu kutistekalvon keskelle. Tämä kohta lämpenee huomattavasti nope ammin ja kutistuu voimakkaammin kuin muu alue. Kutistekalvon reunassa on liima-pinta 7, joka liimaa kutistekalvon reunat kiinni toisiinsa esimerkiksi kolikkopinon ympäri, kuten kuviossa 6 on esitetty. Kutistekalvon päät taipuvat kuristuksen yhteydessä nuolien 8 osoittamalla tavalla siten, että päät sulkeutuvat.The shrink film in Fig. 1 is manufactured by mixing a resistive substance in the plastic material 1, which heats and shrinks the shrink film evenly under the influence of electric energy. In Fig. 2, surface resistors 2 are attached to the surface of the film 1. In Fig. 3, resistive prints 3 are made on the surface of the shrink film by an offset method. The shrink film can also be multilayer, one layer of which is resistive. Low voltage electricity, such as 12-24 V, is applied to the resistive range. The figures show a direct voltage, but the voltage may as well be an AC voltage. Attached to the shrink film 1 are contact surfaces 4, 5 to which electricity is conducted and from which it travels to the resistive region. Figure 7 shows how the resistive area 10 6 is highlighted in the center of the shrink film. This point heats up much faster and shrinks more strongly than the rest of the area. The edge of the shrink film has an adhesive surface 7 which glues the edges of the shrink film together, for example around a stack of coins, as shown in Fig. 6. The ends of the shrink film bend during the throttle as indicated by the arrows 8 so that the ends close.

1515

Laitteen rakennetta ei tässä ole tarkemmin esitetty, koska se muodostuu sinänsä tunnetuista ja yksinkertaisista komponenteista ja on huomattavasti edullisempi kuin esimerkkinä mainittu uuniratkaisu.The structure of the device is not described in more detail here, as it consists of known and simple components and is considerably more advantageous than the furnace solution mentioned by way of example.

Claims (4)

9735797357 1. Menetelmä kutistekalvon (1) kutistamiseksi, jossa kutistekalvoon (1) aikaansaadaan energiaa tuomalla kutistekalvossa olevaan resistiiviseen alueeseen (2, 3, 6) sähköenergiaa ja kutistekalvossa olevaan mikroaaltoja absorboivaan alueeseen 5 mikro-aaltoja tai muita sentapaisia impulsseja, jotka vaikuttavat suoraan kutistekalvoon, tunnettu siitä, että kutistekalvon pintaan tehdään resistiivisiä painatuksia esimerkiksi offset-menetelmällä.A method for shrinking a shrink film (1), wherein energy is supplied to the shrink film (1) by applying electrical energy to a resistive region (2, 3, 6) in the shrink film and microwaves or other similar pulses known to directly shrink the microwave absorbing region 5. that resistive prints are made on the surface of the shrink film, for example by the offset method. 2. Förfarande enligt patentkrav 1, kännetecknat av att krympfolien görs flerskik-tad, varvid ett skikt är resistivt.2. A method according to claim 1, which is shown to be resistant to paints, paints and scratches. 2. Patenttivaatimuksen 1 mukainen menetelmä, tunnettu siitä, että kutistekalvo 10 tehdään monikerroksiseksi, jolloin yksi kerros on resistiivinen.A method according to claim 1, characterized in that the shrink film 10 is made multilayer, wherein one layer is resistive. 3. Patenttivaatimuksen 1 tai 2 mukainen menetelmä, tunnettu siitä, että resistiiviseen alueeseen johdetaan matalajännitesähköä, kuten 12-24 V.Method according to Claim 1 or 2, characterized in that low-voltage electricity, such as 12 to 24 V, is applied to the resistive region. 4. Jonkin edellä olevan patenttivaatimuksen mukainen menetelmä, tunnettu siitä, että kutistekalvoon (1) on kiinnitetty kontaktipinnat (4, 5), joihin sähkö johdetaan ja joista se kulkeutuu resistiiviseen alueeseen. 20 1. Förfarande för att krympa en kiympfolie (1), vid vilket energi alstras i krymp- folien (1) genom att tillföra ett resistivt omräde (2, 3, 6) i krympfolien elektrisk energi och ett omräde som absorberar mikrovagor i krympfolien mikrovagor eller dylika impulser, som direkt paverkar krympfolien, kännetecknat av att i krymp-foliens yta görs resistiva tryck exempelvis med offset-metoden. 25Method according to one of the preceding claims, characterized in that contact surfaces (4, 5) are attached to the shrink film (1), to which electricity is conducted and from which it travels to the resistive region. 20 1. For the purpose of the crystal and the chip (1), the energy of the genome of the crystal film (1) is transformed into a resistive omnipotent (2, 3, 6) and the crystal film of the electric energy and the omnidirectional microcontroller and the crystal film. ellip dylika impulser, somekt pavektar krympfolien, kännetecknat av att i krymp-foliens yta görs resistiva tryck exempelvis med offset-method. 25 3. Förfarande enligt patentkrav 1 eller 2, kännetecknat av att tili det resistiva 30 omrädet leds lägspänningselektricitet, säsom 12-24 V.3. A patent according to claim 1 or 2, which comprises a resistive LED with a total voltage of 12 to 24 V. : 4. Förfarande enligt nägot av föregäende patentkrav, kännetecknat av att vid krympfolien (1) fästats kontaktytor (4, 5), tili vilka elektriciteten leds och frän vilka den passerar tili det resistiva omrädet.: 4. Förfarande enligt nägot av föregäende patentkrav, kännetecknat av att vid vid krympfolien (1) fästats kontaktytor (4, 5), bill vilka elektrititeten leds och frän vilka den passerar bill det resistiva omrädet.
FI944769A 1994-10-11 1994-10-11 Procedure for shrink shrink film FI97357C (en)

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Application Number Priority Date Filing Date Title
FI944769A FI97357C (en) 1994-10-11 1994-10-11 Procedure for shrink shrink film
AU36556/95A AU3655695A (en) 1994-10-11 1995-10-11 A method for shrinking a shrink film
PCT/FI1995/000562 WO1996013434A1 (en) 1994-10-11 1995-10-11 A method for shrinking a shrink film

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FI944769 1994-10-11
FI944769A FI97357C (en) 1994-10-11 1994-10-11 Procedure for shrink shrink film

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FI944769A0 FI944769A0 (en) 1994-10-11
FI944769A FI944769A (en) 1996-04-12
FI97357B FI97357B (en) 1996-08-30
FI97357C true FI97357C (en) 1996-12-10

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Publication number Priority date Publication date Assignee Title
US7964255B2 (en) 2000-06-16 2011-06-21 Micro Shaping, Ltd. Heat-shrinkable multilayer material
GB2363360B (en) * 2000-06-16 2004-09-15 Design Product Ltd A method of shaping heat-shrinkable materials
US7074484B2 (en) 2000-12-15 2006-07-11 Kimberly-Clark Worldwide, Inc. Materials having shape-memory
US6887916B2 (en) * 2000-12-28 2005-05-03 Kimberly-Clark Worldwide, Inc. Materials having controlled shrinkage and patterns and methods of making same
DE502007001962D1 (en) 2007-03-16 2009-12-24 Fuest Ludger Method for producing a tubular bag, tubular bag as well as for the production of the tubular bag suitable film
DE102012021916A1 (en) * 2012-11-09 2014-05-15 Krones Ag Shrink packaging, apparatus for producing a shrink wrap and method for producing a shrink wrap
EP3204210B1 (en) 2014-10-10 2020-02-05 Cryovac, LLC Apparatus and process for packaging a product

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US4323607A (en) * 1978-09-01 1982-04-06 Ube Industries, Ltd. Heat shrinkable covers
SE455935B (en) * 1983-04-06 1988-08-22 Scan Coin Ab COAT PACKAGING AND CREAM WRAP FOR EXTENDING THE SET

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FI944769A (en) 1996-04-12
WO1996013434A1 (en) 1996-05-09
FI944769A0 (en) 1994-10-11
AU3655695A (en) 1996-05-23
FI97357B (en) 1996-08-30

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