DK144964B - INTRODUCTION FOLDERS - Google Patents

INTRODUCTION FOLDERS Download PDF

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Publication number
DK144964B
DK144964B DK519379A DK519379A DK144964B DK 144964 B DK144964 B DK 144964B DK 519379 A DK519379 A DK 519379A DK 519379 A DK519379 A DK 519379A DK 144964 B DK144964 B DK 144964B
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DK
Denmark
Prior art keywords
heat
sheet
copy
cover sheet
folders
Prior art date
Application number
DK519379A
Other languages
Danish (da)
Other versions
DK144964C (en
DK519379A (en
Inventor
E M Laursen
Original Assignee
Memofax As
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 Memofax As filed Critical Memofax As
Priority to DK519379A priority Critical patent/DK144964C/en
Priority to PCT/DK1980/000078 priority patent/WO1981001687A1/en
Priority to EP19810900008 priority patent/EP0041529B1/en
Priority to AT81900008T priority patent/ATE8597T1/en
Priority to DE8181900008T priority patent/DE3068751D1/en
Publication of DK519379A publication Critical patent/DK519379A/en
Publication of DK144964B publication Critical patent/DK144964B/en
Application granted granted Critical
Publication of DK144964C publication Critical patent/DK144964C/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/40Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
    • B41M5/42Intermediate, backcoat, or covering layers
    • B41M5/44Intermediate, backcoat, or covering layers characterised by the macromolecular compounds

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Paper Feeding For Electrophotography (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)

Description

U4964 iU4964 i

Opfindelsen angår en indføringsmappe til brug ved transport af original og kopiark i anlæg mod hinanden forbi en varmestråler i en termokopieringsmaskine og bestående af i det mindste et bøjeligt bæreark og et 5 ligeledes bøjeligt dækark, som er gennemtrængeligt for varmestråler. En sådan indføringsmappe tjener dels til at holde originalen og kopiarket sammen, dels til at beskytte kopimaterialet mod opvarmning eller afkøling ved konvektionsvarme, som virker konturslørende, fordi 10 den formindsker kontrasten mellem de dele, der skal opvarmes, og dem, der ikke skal opvarmes. I nogle tilfælde er anvendelse af en indføringsmappe også nødvendig, for at stivheden af det arkmateriale, der føres gennem termokopieringsmaskinen, skal blive stor nok til 15 at aktivere elektriske kontaktorganer anbragt langs arkmaterialets bevægelsesbane.The invention relates to an insertion folder for use in transporting originals and copy sheets in abutment against each other past a heat radiator in a thermal copying machine and consisting of at least one flexible carrier sheet and a similarly flexible cover sheet which is permeable to heat rays. Such an insertion folder serves partly to hold the original and the copy sheet together, and partly to protect the copy material from heating or cooling by convection heat, which has a contouring effect, because it reduces the contrast between the parts to be heated and those not to be heated. In some cases, the use of an insertion folder is also necessary so that the stiffness of the sheet material passed through the thermocopier must be large enough to activate electrical contact means located along the path of movement of the sheet material.

Foruden at have bedst mulig gennemtrængelighed for infrarøde stråler skal dækarket, der under kopieringsprocessen befinder sig mellem kopimaterialet og varmestrå-20 leren, også være modstandsdygtigt mod varme og mekaniske påvirkninger og billigt at fremstille. Silke og nylongaze anvendes i nogen udstrækning på grund af deres mekaniske styrke og gode gennemtrængelighed for varmestråler, men disse materialer er ret sarte, idet fnug 25 eller andre smudspartikler, der sætter sig på et sådant dækark, let brænder fast eller fører til gennembrænding af arket.In addition to having the best possible permeability to infrared rays, the cover sheet located between the copy material and the heat radiator during the copying process must also be resistant to heat and mechanical influences and inexpensive to manufacture. Silk and nylon gauze are used to some extent because of their mechanical strength and good permeability to heat rays, but these materials are quite delicate, as lint 25 or other dirt particles that settle on such a cover sheet easily burn or lead to burnout of the sheet. .

Hyppigt anvendt er glatte plastfolier af f.eks. PTFE (polytetrafluorethylen) eller FEP (fluoreret ethylen-30 propylen-copylomerisat), som begge er lidet varmestrå-leabsorberende og tåler ret høje temperaturer. En ulem- 2 144964 pe ved disse og andre glatte folier er imidlertid, at de ligger an mod kopimateriale over et stort areal og således er i god varmeoverføringskontakt dermed, så at kopimaterialet ikke alene opvarmes lokalt af de infra-5 røde stråler, men også modtager en jævnt fordelt varme, der overføres ved konvektion.Frequently used are smooth plastic foils of e.g. PTFE (polytetrafluoroethylene) or FEP (fluorinated ethylene-propylene copylomerate), both of which are low heat radiation absorbing and can withstand quite high temperatures. A disadvantage of these and other smooth foils, however, is that they abut against copy material over a large area and thus are in good heat transfer contact therewith, so that the copy material is not only heated locally by the infrared rays, but also receives an evenly distributed heat that is transferred by convection.

Opfindelsen har til formål at angive en indføringsmappe af den omhandlede art, som foruden at besidde de gode plastfoliers robusthed over for termiske og mekaniske 10 påvirkninger frembyder dårlige betingelser for konvektions^varmeoverføring.The object of the invention is to provide an insertion folder of the type in question which, in addition to possessing the robustness of the good plastic foils against thermal and mechanical influences, presents poor conditions for convection heat transfer.

Dette formål opnås ved, at dækarket er fremstillet ved efterbehandling af glat plastfolie til frembringelse af et forudbestemt mønster af fordybninger i og forhøjnin-15 ger på den ene eller begge overflader, som angivet i krav 1, idet denne udformning reducerer arealet af kontaktfladen med kopimaterialet og dermed den varmestrøm, der kan overføres ved konvektion gennem denne flade.This object is achieved in that the cover sheet is made by finishing smooth plastic foil to produce a predetermined pattern of depressions in and elevations on one or both surfaces, as stated in claim 1, this design reducing the area of the contact surface with the copy material. and thus the heat flow that can be transferred by convection through this surface.

Efterbehandlingen kan f.eks. bestå i, at der skæres, 20 presses eller ridses tætliggende riller i arket ved hjælp af et passende redskab, hvorved kontaktfladen mod kopimaterialet opløses i linier eller smalle strimler.The finishing can e.g. consist in cutting, pressing or scratching adjacent grooves in the sheet by means of a suitable tool, whereby the contact surface against the copy material is dissolved in lines or narrow strips.

En endnu bedre virkning kan opnås ved, at der frembringes to sæt hinanden krydsende riller, så at kontaktfla-25 den opløses i punkter eller små pletter. En sådan bearbejdning kan f.eks. foretages ved krydsroulettering.An even better effect can be obtained by producing two sets of intersecting grooves so that the contact surface dissolves into dots or small spots. Such processing can e.g. made by cross-roulette.

Det har vist sig, at man ved anvendelse af et kryds-rouletteret PTPE-dækark kan forøge den hastighed, hvormed et sæt kopimateriale føres igennem en given termo-30 kopieringsmaskine, med ca. 25% sammenlignet med et tilsvarende glat dækark, samtidig med at kopikvaliteten forbedres. Denne reduktion af gennemføringstiden bevirker også, at maskinen opvarmes mindre.It has been found that by using a cross-roulette PTPE cover sheet one can increase the speed at which a set of copy material is passed through a given thermo-copier by approx. 25% compared to a similarly smooth cover sheet, while improving copy quality. This reduction in throughput time also causes the machine to heat up less.

3 1449643 144964

Foruden bærearket og dækarket kan indføringsmappen også på kendt måde være udstyret med en på bærearket anbragt pude af elastisk eftergiveligt materiale, som f.eks. skumgummi og med et mellem denne pude og dæk-5 arket anbragt varmereflekterende ark, f.eks. af aluminiumfolie.In addition to the carrier sheet and the cover sheet, the insertion folder can also be equipped in a known manner with a cushion of elastically resilient material arranged on the carrier sheet, such as e.g. foam rubber and with a heat-reflecting sheet arranged between this pad and the cover sheet, e.g. of aluminum foil.

Det kan imidlertid også være ønskeligt at reducere overføringen af varme ved konvektion til og fra bærearket, og det kan derfor være hensigtsmæssigt, at også 10 dette ark har et ved efterbearbejdning frembragt mønster af fordybninger og forhøjninger som angivet i krav 2.However, it may also be desirable to reduce the transfer of heat by convection to and from the carrier sheet, and it may therefore be expedient for this sheet also to have a pattern of depressions and elevations produced by post-processing as stated in claim 2.

Opfindelsen skal forklares nærmere i det følgende under henvisning til tegningen, hvor fig. 1 skematisk viser de væsentligste dele af et almin-15 deligt termokopieringsapparat med et i en indføringsmappe anbragt kopimaterialesæt på vej gennem apparatet, og fig. 2 stærkt forstørret viser en del af et snit gennem en udførelsesform for indføringsmappen ifølge opfindelsen og det deri anbragte kopimaterialesæt.The invention will be explained in more detail in the following with reference to the drawing, in which fig. 1 schematically shows the essential parts of a general thermal copying machine with a set of copy material arranged in an insertion folder on its way through the machine, and fig. 2 shows, greatly enlarged, a part of a section through an embodiment of the insertion folder according to the invention and the copy material set arranged therein.

20 På tegningen er 10 et cylindrisk glasrør, som er roter-bart anbragt mellem en drejeligt lejret gummivalse 11 og to par ligeledes drejelige støtteruller 12, hvoraf det ene par kan drives af en ikke vist motor. Rullerne i hvert par er beliggende ved hver sin ende af 25 glasrøret 10, og kun den ene af dem ses på tegningen.In the drawing, 10 is a cylindrical glass tube which is rotatably arranged between a rotatably mounted rubber roller 11 and two pairs of likewise rotatable support rollers 12, one pair of which can be driven by a motor (not shown). The rollers in each pair are located at each end of the glass tube 10, and only one of them is seen in the drawing.

Inde i glasrøret er anbragt en stangformet, stationær varmestråler bestående af et varmelegeme 13 og en reflektor 14. Gummivalsen 11's akseltappe 15 står under påvirkning af fjedre 16, som holder valsen eftergiveligt 30 i anlæg mod glasrøret 10.Inside the glass tube is arranged a rod-shaped, stationary heat radiator consisting of a heater 13 and a reflector 14. The shaft pin 15 of the rubber roller 11 is under the influence of springs 16, which resiliently hold the roller 30 in abutment against the glass tube 10.

U4964 4U4964 4

Indføringsmappen og det deri indeholdte kopimateriale er som helhed "betegnet med 20. For tydeligheds skyld er de forskellige ark på tegningen vist trukket lidt hort fra hverandre, selv om de i virkeligheden ligger 5 tæt an mod hverandre. Som det fremgår af fig. 2, består indføringsmappen af et bøjeligt bæreark 21 og et ligeledes bøjeligt dækark 22, som på passende, ikke vist måde er hæftet sammen langs den ene kant.The insertion folder and the copy material contained therein are as a whole "denoted by 20. For the sake of clarity, the various sheets in the drawing are shown pulled slightly apart, although in reality they are 5 close to each other. As can be seen from Fig. 2, the insertion folder consists of a flexible carrier sheet 21 and a similarly flexible cover sheet 22, which in a suitable, not shown manner are stapled together along one edge.

Bærearket 21 er som nævnt bøjeligt, men udviser dog en 10 sådan grad af stivhed, at det ikke danner knæk eller folder ved normal håndtering. Det består fortrinsvis af plast, f.eks. polyester eller nylon, men kan også bestå af andre materialer såsom karton eller svært papir.As mentioned, the carrier sheet 21 is flexible, but nevertheless exhibits such a degree of rigidity that it does not form cracks or folds during normal handling. It preferably consists of plastic, e.g. polyester or nylon, but can also consist of other materials such as cardboard or hard paper.

Dækarket 22 er gennemtrængeligt for varmestråler og be-15 står fortrinsvis af en af de ovenfor nævnte plastsorter PTFE og FEP. Det er fremstillet ved rifling eller krydsroulettering af en glat plastfolie, så at der fremkommer forhøjninger 23 og fordybninger 24.The cover sheet 22 is permeable to heat rays and preferably consists of one of the above-mentioned types of plastics PTFE and FEP. It is made by corrugating or cross-rolling a smooth plastic foil so that ridges 23 and depressions 24 appear.

Kopimaterialet består af en original 25 og et kopiark 26, 20 som er gennemtrængeligt for varmestråler og på den side, der vender mod originalen, har et varmefølsomt lag, som skifter farve ved opvarmning. En sådan opvarmning finder sted på det steder, hvor originalen er mørk og derfor absorberer varmestrålerne, når de pågældende 25 steder passerer forbi varmestråleren 13, 14 under materialets passage mellem glasrøret 10 og gummivalsen 11«The copy material consists of an original 25 and a copy sheet 26, 20 which is permeable to heat rays and on the side facing the original has a heat-sensitive layer which changes color when heated. Such heating takes place in the place where the original is dark and therefore absorbs the heat rays when the 25 places in question pass the heat radiator 13, 14 during the passage of the material between the glass tube 10 and the rubber roller 11 '.

Den ujævne overflade af dækarket 22 bevirker, at dækarket kun kommer i konvektionsvarmeoverførende kontakt med glasrøret 10 på toppen af forhøjningerne 23 og med 30 kopiarket 26 ved bunden af fordybningerne 24, så at den konturslørende opvarmning, der finder sted som følge af konvektionsvarme, reduceres stærkt.The uneven surface of the cover sheet 22 causes the cover sheet to come into convection heat transfer contact only with the glass tube 10 on top of the elevations 23 and with the copy sheet 26 at the bottom of the recesses 24, so that the contour blurring heating due to convection heat is greatly reduced. .

DK519379A 1979-12-06 1979-12-06 INTRODUCTION FOLDERS DK144964C (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DK519379A DK144964C (en) 1979-12-06 1979-12-06 INTRODUCTION FOLDERS
PCT/DK1980/000078 WO1981001687A1 (en) 1979-12-06 1980-12-05 A folder
EP19810900008 EP0041529B1 (en) 1979-12-06 1980-12-05 A folder
AT81900008T ATE8597T1 (en) 1979-12-06 1980-12-05 ENVELOPE.
DE8181900008T DE3068751D1 (en) 1979-12-06 1980-12-05 A folder

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK519379 1979-12-06
DK519379A DK144964C (en) 1979-12-06 1979-12-06 INTRODUCTION FOLDERS

Publications (3)

Publication Number Publication Date
DK519379A DK519379A (en) 1981-06-07
DK144964B true DK144964B (en) 1982-07-19
DK144964C DK144964C (en) 1982-12-13

Family

ID=8140305

Family Applications (1)

Application Number Title Priority Date Filing Date
DK519379A DK144964C (en) 1979-12-06 1979-12-06 INTRODUCTION FOLDERS

Country Status (4)

Country Link
EP (1) EP0041529B1 (en)
DE (1) DE3068751D1 (en)
DK (1) DK144964C (en)
WO (1) WO1981001687A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE421990C (en) * 1923-07-24 1925-11-21 Soennecken Fa F Paper stiffener for copier machines
US2026037A (en) * 1934-08-13 1935-12-31 Ditto Inc Bed plate for duplicating machines
US3230874A (en) * 1960-09-22 1966-01-25 Columbia Ribbon & Carbon Copy means
DE1196676B (en) * 1963-10-31 1965-07-15 Wilhelm Ritzerfeld Copy set holder for the thermal copying process
DE1671534A1 (en) * 1967-03-29 1972-02-03 Ostwald Heinz G Process for heat copying and heat sealing
DK122939B (en) * 1970-03-25 1972-05-01 Memofax As Copier.
DK127963B (en) * 1972-06-20 1974-02-11 Memofax As Transport folder for transporting originals and copy sheets in a thermal copying machine.

Also Published As

Publication number Publication date
WO1981001687A1 (en) 1981-06-25
EP0041529A1 (en) 1981-12-16
EP0041529B1 (en) 1984-07-25
DK144964C (en) 1982-12-13
DE3068751D1 (en) 1984-08-30
DK519379A (en) 1981-06-07

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