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WO2009027362A1 - Support pour composants électroniques polymères imprimés - Google Patents

Support pour composants électroniques polymères imprimés Download PDF

Info

Publication number
WO2009027362A1
WO2009027362A1 PCT/EP2008/061074 EP2008061074W WO2009027362A1 WO 2009027362 A1 WO2009027362 A1 WO 2009027362A1 EP 2008061074 W EP2008061074 W EP 2008061074W WO 2009027362 A1 WO2009027362 A1 WO 2009027362A1
Authority
WO
WIPO (PCT)
Prior art keywords
use according
resin layer
raw paper
front side
paper
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.)
Ceased
Application number
PCT/EP2008/061074
Other languages
English (en)
Inventor
Wolfgang Schmidt
Rainer Steinbeck
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.)
Felix Schoeller Jr Foto und Spezialpapiere GmbH
Original Assignee
Felix Schoeller Jr Foto und Spezialpapiere GmbH
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 Felix Schoeller Jr Foto und Spezialpapiere GmbH filed Critical Felix Schoeller Jr Foto und Spezialpapiere GmbH
Publication of WO2009027362A1 publication Critical patent/WO2009027362A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
    • H10K77/10—Substrates, e.g. flexible substrates
    • H10K77/111—Flexible substrates
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/10—Deposition of organic active material
    • H10K71/12—Deposition of organic active material using liquid deposition, e.g. spin coating
    • H10K71/13—Deposition of organic active material using liquid deposition, e.g. spin coating using printing techniques, e.g. ink-jet printing or screen printing
    • H10K71/135—Deposition of organic active material using liquid deposition, e.g. spin coating using printing techniques, e.g. ink-jet printing or screen printing using ink-jet printing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/549—Organic PV cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the invention relates to a substrate for printed polymer electronics .
  • polymer electronics is formed by organic polymers, which, in dependence of their chemical structure, possess electrically conductive, semi ⁇ conducting or insulating properties.
  • Polymer electronics is normally printed in several layers on polyester films.
  • a paper substrate is used for the cost-reduction purpose.
  • differ- ent polymers and printing methods are used.
  • the printing methods are based essentially on known printing processes like flexography, offset, engraved-plate and screen print ⁇ ing. They allow high printing speeds, however, without having sufficient resolution. Insufficient resolution is responsible for the occurrence of electrical errors.
  • the film or paper used hitherto as substrate for polymer electronics feature more or less disadvantages, depending on the type of polymer being suitable for polymer electronics .
  • Films exhibit poor running properties when rolling up and unwinding the film sheet and when printing in the machine. This has negative effect on the printing accuracy and leads to the occurrence of electrical errors in the printed electronics samples. Moreover, depending on the type of polymer to be printed, the adherence of this polymer on the film surface is more or less unsatisfac ⁇ tory .
  • paper substrates are cost-effective, they are not suitable for ink-jet print. Owing to the open paper surface and a high level of roughness, the polymer solu ⁇ tion (electronic ink) penetrates too fast into the paper, thus negatively influencing the printing quality and be ⁇ comes apparent in form of insufficient and uneven resolu ⁇ tion. Moreover, a paper substrate features no barrier ef- feet against moisture and dust and is only conditionally suitable as substrate for the printed, moisture and dust sensitive electronics structures.
  • the problem underlying the invention is to provide a cost effective substrate for printed polymer electron ⁇ ics, which does not exhibit the above-mentioned disad ⁇ vantages .
  • a base paper that at least comprises a raw paper provided with a resin layer on at least one side.
  • raw paper For the purposes of the invention, under the term "raw paper" one understands a non-coated or surface sized pa ⁇ per.
  • a raw paper can contain the following materials, besides pulp fibers: sizing agents such as alkylken- tendimers, fatty acids and/or fatty acid salts, epoxy- dized fatty acid amides, alkenyl or alkyl-succic acid an ⁇ hydride, wet strength agents such as polyamine, polyamide epichlorohydrines, dry strength agent such as anionic, cationic or amphoteric Polyamides, optical brightener, pigments, dyestuffs, defoaming agents and they can contain other auxiliary materials known in the paper industry.
  • the raw paper surface can be surface sized.
  • Sizing agents suitable for this are polyvinyl alcohol or oxidised starch.
  • the raw paper can be manufactured on a Fourdrinier machine or on a Yankee paper machine (cylinder paper machine) .
  • the basis of raw paper can be 50 to 250 g/m 2 , in particular 50 to 150 q/m .
  • the raw paper can be used in non-compressed or compressed form (smooth- ened) . Particularly good are raw papers with a density of 0.8 to 1.05 g/cm 3 , in particular 0.95 to 1.02 g/cm 3 .
  • filling material for instance, clay, calcium carbonate - in its natural form like limestone - marble or dolomite stone, precipitated calcium carbonate, calcium sulphate, barium sulphate, titanium dioxide, talcum, silica, alu ⁇ minium oxide and their mixtures can be used in raw paper.
  • base paper comprises a raw paper with at least one synthetic resin layer on the front and on the back side.
  • base paper comprises a raw paper with at least one synthetic resin layer on the front and on the back side.
  • front side one understands the side of the raw paper on which the polymer electronics is to be printed.
  • the synthetic resin layers of the front and back side contain the same resin type.
  • the resin type used in the synthetic resin coats of the front side is different from the resin type used in the synthetic resin layer of the backside.
  • the resin layer located on at least one side of the raw paper preferably contains a resin with water vapour perme ⁇ ability of maximum 150 g/m 2 ⁇ 24 h for a coat thickness of 30 ⁇ m, measured at 4O 0 C and 90% relative humidity.
  • the resin is preferably a thermoplastic polymer.
  • Suitable thermoplastic resin types comprise, for instance, polyole- fines, in particular low-density polyethylene (LDPE), high-density polyethylene (HDPE) , ethylene/a-olefin- copolymers (LLDPE) , polypropylene, polyisobutylene, poly- methyl-pentene and their mixtures.
  • LDPE low-density polyethylene
  • HDPE high-density polyethylene
  • LLDPE ethylene/a-olefin- copolymers
  • polypropylene polyisobutylene
  • poly- methyl-pentene poly- methyl-pentene and their mixtures.
  • other thermoplastic polymers such as (meth) acrylic acid ester - homopolymers, (meth) acrylic acid ester - copolymers, vi- nylpolymers like polyvinyl butyral, polyamide, polyester, polyacetals and/or polycarbonate can
  • the front side of the raw paper is coated with a resin layer that comprises at least 50 percent by weight, in particular 80 percent by weight of a low-density polyethylene with a density of 0.910 to 0.930 g/cm 3 and a melt index of 1 to 20 g/10 min, based on the resin layer.
  • the back side of the raw paper is coated with a polyolefin, in particular polyethylene.
  • a polyolefin in particular polyethylene.
  • a polyethylene mixture consisting of LDPE and HDPE, whereby the quantity ratio LD/HD 9:1 to 1:9, in particular 3:7 to 7:3.
  • the synthetic resin layers moreover may contain white pigments like titanium dioxide as well as other auxil ⁇ iary materials like optical brightener, coloring sub ⁇ stances and dispersing agent.
  • the coating weight of the synthetic resin layers on the front side and back side can amount to 5 to 50 g/m 2 , preferably 20 to 50 g/m 2 or particularly preferred 30 to 50 g/m 2 respectively.
  • a layer can be disposed between the raw paper and the resin layer, which contains a pigment and a hydrophilic binding agent in a quantity ratio of 10:1 to 2:5.
  • Film-forming starch like thermally modified starch, in particular maize starch or starches modified with hydroxypropyl are suitable as bonding agent .
  • the coating layer containing the pigment and hydrophilic binding agent can be disposed directly on the front side or on the back side of the raw paper. It can be applied as a single layer or as multilayer on the raw paper.
  • the coating compound can be applied inline or off-line with all application aggregates common in paper manufacturing, whereby the quantity is selected such that, after drying, the coating weight per layer is maximum 20 g/m 2 , in particular 8 to 17 g/m 2 , or according to a particularly preferred embodiment 2 to 6 g/m 2 .
  • the pigment can be selected from a group of metal oxides, silicates, carbonates, sulfides and sulfates. Particularly pigments like clay, talcum, calcium carbonate and/or bar ⁇ ium sulfate are well suitable.
  • a pigment mix ⁇ ture which consists of calcium carbonate and clay in a quantity ratio of preferably 30:70 to 70:30.
  • the function layers preferably comprise binding agent with latex content such as styrene/butadiene, sty- rene/acrylate latex and, if necessary, further compo ⁇ nents, for instance matting agent, spacer, pigments, coloring agents, cross-linking agent and wetting agent.
  • binding agent with latex content
  • spacer for instance matting agent, spacer, pigments, coloring agents, cross-linking agent and wetting agent.
  • other binding agents like polyvinyl alcohols or cellulose derivatives can be used.
  • the coating weight of the functional layers lies preferably in a range from 0.05 to 5 g/m 2 , in particular 0.1 to 3 g/m 2 .
  • Base papers have proved as particularly advantageous if their front side features surface quality in roughness values Ra range of less than 0.5 ⁇ m, in particular less than 0.1 ⁇ m.
  • the back side features preferably roughness Rz of 3 to 20 ⁇ m, in particular 7 to 14 ⁇ m.
  • Eucalyptus pulp was used for manufacturing the raw pa ⁇ per.
  • the pulp was used as about 5 % aqueous suspension (high-density pulp slurry) for beating with the help of a refiner to a beating degree of 36 0 SR.
  • the average fiber length was 0.64 mm.
  • the concentration of pulp fibers low-density pulp slurry was 1 percent by weight, based on the compound of the pulp suspension.
  • the low- density pulp was admixed with additives like a neutral sizing agent alkyl-ketene-dimer (AKD) in an amount of 0.48 percent by weight and a wet strength agent poly- amine - polyamide - epichlorohydrine - resin (Kymene ® ) in a quantity of 0.36 percent by weight.
  • the low-density pulp slurry whose pH-value was set at about 7.5, was brought from the headbox to the sieve of the papermaking machine, upon which the sheet formation took place under drainage of the sheet in the wire sec ⁇ tion of the papermaking machine. In the press section, further drainage of the paper sheet took place to the water content of 60 percent by weight, based on the sheet weight . Further drying occurred in the drying section of the paper machine with heated drying cylinders. Raw paper A with a basis weight of 80 g/m 2 was manufactured.
  • the front side of the raw paper A was coated with a synthetic resin mixture of 100 percent by weight of a low density polyethylene (LDPE, 0.923 g/cm 3 , moisture permeability 18 g/m 2 , 24 h) with a coating weight of about 20 g/m 2 in a laminator at an extension speed of about 250 m/min.
  • LDPE low density polyethylene
  • the coating process occurred in a lami ⁇ nator at an extrusion speed of 250 m/min.
  • the printing ink liquid had the following composition:
  • PEDOT poly (3.4-ethylene dioxy- thiophene)
  • PSS polystyrene sulphonate
  • the front side of the raw paper B was coated with a synthetic resin mixture of 100 percent by weight of a low-density polyethylene (LDPE, 0.923 g/cm 3 moisture permeability s. ExI) with a coating weight of about 24 g/m 2 in a laminator at an extension speed of about 250 m/min .
  • LDPE low-density polyethylene
  • the coating process occurred in a lami ⁇ nator at an extrusion speed of 250 m/min.
  • the raw paper A was coated on the front side with the coating compound specified in detail below.
  • the coating weight after drying was 5 g/m 2 .
  • the coating compound comprised the following com ⁇ ponents :
  • Acroflex VX 610 0.2 percent by weight
  • the coated paper was laminated on the front and back surface with synthetic resin coating as in Ex ⁇ ample 1.
  • the raw paper B was coated on the front side with the coating compound of Example 3.
  • the coating weight after drying was 5 g/m" .
  • the coated paper was laminated on the front and back side with synthetic resin layer as in Example 2.
  • Example 1 A Melinex polyester film with a basis weight per unit area of 135 g/m 2 (thickness: 110 ⁇ m) was printed as in Example 1 and dried. Finally, the electrical conductivity of the sample was measured (Table 1) .
  • the raw paper B was printed as in Example 1 and dried. Finally, the electrical conductivity of the sample was measured (Table 1) .
  • Example 3 The paper from Example 3 provided with the coating comprising pigment on the front side, however, without syn ⁇ thetic resin layer was printed and dried as in Example 1. Finally, the electrical conductivity of the sample was measured (Table 1) . Testing the substrates produced according to the examples and comparative examples
  • the measurements were carried out with a Hommeltester T4000 according to DIN 4768 for a cut-off setting of 2.5 mm and a measuring distance of 15 mm. Ra-values were de ⁇ termined for the front side and the Rz-values for the back side of the substrate.
  • the mean roughness value Ra is the calculated mean value of all deviations of the roughness profile from the middle line of the defined reference distance.
  • the Rz-value represents the averaged roughness depth of the surface structure and is the mean value determined from individ ⁇ ual surface roughness of sequentially single measuring distances in the roughness profile.
  • the adhesion quality is tested with the help of an adhe ⁇ sive tape test.
  • the printed material was covered with a TESA ® -film, finally the film was re ⁇ moved and traces of printing ink were checked visually. To make the traces better detectable, the printing ink was lightly colored prior to printing.
  • the electrical conductivity of the substrate (1 and 2) according to the invention is compa ⁇ rable with the conductivity of polyester-film (Vl) commonly used as substrate.
  • Vl polyester-film
  • the quality of the running capability may be quantified through the roughness profile of the back side of the substrate.
  • the paper-based substrates (V2 and V3) are difficult to print due to their rough surface, their lack of barrier effect, in particular against liquids, and their ten ⁇ dency to release paper fibers and other particles, and are therefore unsuitable as substrate for polymer elec ⁇ tronics.
  • the substrate according to the in ⁇ vention features the properties required for the above- mentioned purpose.

Landscapes

  • Paper (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un substrat pour composants électroniques polymères imprimés à papier de base comprenant un papier brut et au moins une couche de résine, qui est disposé au moins sur un côté.
PCT/EP2008/061074 2007-08-27 2008-08-25 Support pour composants électroniques polymères imprimés Ceased WO2009027362A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102007040646 2007-08-27
DE102007040646.2 2007-08-27
US97240207P 2007-09-14 2007-09-14
US60/972,402 2007-09-14

Publications (1)

Publication Number Publication Date
WO2009027362A1 true WO2009027362A1 (fr) 2009-03-05

Family

ID=40029176

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/061074 Ceased WO2009027362A1 (fr) 2007-08-27 2008-08-25 Support pour composants électroniques polymères imprimés

Country Status (2)

Country Link
TW (1) TW200912091A (fr)
WO (1) WO2009027362A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2239368A1 (fr) * 2009-04-09 2010-10-13 Cham Paper Group Schweiz AG Substrat plat à base organique, utilisation d'un tel substrat et procédé
EP2383590A1 (fr) * 2010-04-30 2011-11-02 Schott Ag Elément d'éclairage extensif
US20220355991A1 (en) * 2021-04-25 2022-11-10 The Procter & Gamble Company Packaging material and preparing method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109501485A (zh) * 2018-12-20 2019-03-22 深圳市富阳鑫纺织品有限公司 一种无水全棉热转印工艺

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6599592B1 (en) * 1999-11-15 2003-07-29 Felix Schoeller Jr. Foto-Und Spezialpapiere Gmbh & Co. Kg Recording material for the ink jet printing method
US20060159945A1 (en) * 2003-06-23 2006-07-20 Marcus Halik Solution and method for the treatment of a substrate, and semiconductor component
JP2007108241A (ja) * 2005-10-11 2007-04-26 Oji Paper Co Ltd 電極用基板

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6599592B1 (en) * 1999-11-15 2003-07-29 Felix Schoeller Jr. Foto-Und Spezialpapiere Gmbh & Co. Kg Recording material for the ink jet printing method
US20060159945A1 (en) * 2003-06-23 2006-07-20 Marcus Halik Solution and method for the treatment of a substrate, and semiconductor component
JP2007108241A (ja) * 2005-10-11 2007-04-26 Oji Paper Co Ltd 電極用基板

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
C.-J LEE ET AL.: "Top emission organic EL display on paper substrate", SID SYMPOSIUM DIGEST OF TECHNICAL PAPERS, vol. 35, no. 1, 31 May 2004 (2004-05-31), SID, CA, USA, pages 1005 - 1007, XP007011892 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2239368A1 (fr) * 2009-04-09 2010-10-13 Cham Paper Group Schweiz AG Substrat plat à base organique, utilisation d'un tel substrat et procédé
WO2010115597A1 (fr) * 2009-04-09 2010-10-14 Cham Paper Group Schweiz Ag Substrat plat de type organique, utilisation d'un tel substrat ainsi que procédé
EP2383590A1 (fr) * 2010-04-30 2011-11-02 Schott Ag Elément d'éclairage extensif
US20220355991A1 (en) * 2021-04-25 2022-11-10 The Procter & Gamble Company Packaging material and preparing method thereof

Also Published As

Publication number Publication date
TW200912091A (en) 2009-03-16

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