EP0285734A2 - Procédé d'imprégnation de feuilles de papier hydrophiles, gonflables - Google Patents

Procédé d'imprégnation de feuilles de papier hydrophiles, gonflables Download PDF

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Publication number
EP0285734A2
EP0285734A2 EP87710008A EP87710008A EP0285734A2 EP 0285734 A2 EP0285734 A2 EP 0285734A2 EP 87710008 A EP87710008 A EP 87710008A EP 87710008 A EP87710008 A EP 87710008A EP 0285734 A2 EP0285734 A2 EP 0285734A2
Authority
EP
European Patent Office
Prior art keywords
resin solution
impregnating
resin
materials
impregnating agent
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
Application number
EP87710008A
Other languages
German (de)
English (en)
Other versions
EP0285734A3 (en
EP0285734B1 (fr
Inventor
Karl-Heinrich Paa
Konstantin Karl Mayer
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.)
Bausch AG
Original Assignee
Bausch AG
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 Bausch AG filed Critical Bausch AG
Priority to AT87710008T priority Critical patent/ATE83018T1/de
Publication of EP0285734A2 publication Critical patent/EP0285734A2/fr
Publication of EP0285734A3 publication Critical patent/EP0285734A3/de
Application granted granted Critical
Publication of EP0285734B1 publication Critical patent/EP0285734B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/18—Paper- or board-based structures for surface covering
    • D21H27/22—Structures being applied on the surface by special manufacturing processes, e.g. in presses
    • 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
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/47—Condensation polymers of aldehydes or ketones
    • D21H17/49—Condensation polymers of aldehydes or ketones with compounds containing hydrogen bound to nitrogen
    • D21H17/51—Triazines, e.g. melamine

Definitions

  • the invention relates to a method for impregnating flat fibrous materials such as cellulose paper webs or the like according to the preamble of claim 1.
  • the plate-like component used as the base material is provided with an abrasion-resistant surface layer.
  • the base materials used in this connection then only have to meet the requirement of sufficient strength and resistance; these can be fiberboard, plywood panels or multilayer paper arrangements.
  • Such base materials are provided with decorative laminations in such a way that the outer surface is not only given an attractive appearance, but also the characteristic surface properties, such as high resistance to chemical influences, but also to mechanical stress, heat, light radiation and the like are imparted to it.
  • cover layers of interest here to start from cellulose paper webs, which may be printed or unprinted, and to impregnate this starting material with heat-resistant synthetic resin.
  • synthetic resin aminoplasts, phenolic resins, Polyester resins, but also melamine resins and the like.
  • a further surface layer as a protective layer, such as, for example, a thin plastic film or a further translucent and heat-resistant plastic lacquer.
  • Another known method for producing suitably impregnated paper webs is aimed at ensuring a particularly high abrasion resistance and serves to specify a surface layer which is to be connected to a plate-like component, hard paper materials being added to the paper web using an electrostatic deposition process ( DE-AS 21 24 432).
  • This known method is characterized in that the paper web is impregnated with heat-resistant plastic in an aqueous impregnation bath, then the abrasion-resistant material in the impregnated paper web is introduced and then the impregnated and provided with abrasion-resistant material paper web is dried.
  • a paper layer is soaked with a solution which contains approximately 50% melamine resin and 50% water with the addition of a small amount of a wetting agent.
  • the impregnated paper web is passed through a drying press, whereby the moisture content can be significantly reduced.
  • impregnation solutions are used in the form of highly concentrated resin solutions free of organic solvents, the disadvantages which occur in the abovementioned known processes are extremely bar. In this context, it is particularly advantageous that the addition of any organic solvents is dispensed with.
  • the proportion of water can be reduced to approximately 1/5 of the comparable impregnating solutions known to date.
  • the highly concentrated resin solution is applied evenly to the paper web at room temperature and thus in a relatively viscous state, which at the same time offers advantageous precise dosing options for the resin proportion in relation to the paper portion to be impregnated by the known use of wire doctor blades or the like more.
  • a flat fibrous material wound on this roll here a paper tape 3
  • a resin application station 5 which is fed from a storage container 4, in which has a highly concentrated resin with a solids content of approx. 70 to 98%.
  • the highly concentrated resin such as melamine resin, has a viscosity of approx. 200 to 2000 mPa at room temperature.
  • the application station 5 can consist of wire squeegees, roller pairs, a casting head arrangement, air knives, an application apron or the like which are known per se.
  • the highly concentrated resin is applied to the paper web 3 within the application station 5 at room temperature and distributed by means of one or more of the above-mentioned devices with a high degree of homogenization and with exact metering, without it being able to penetrate appreciably into or from the pulp given the high viscosity would even be sucked in.
  • the paper web 3 passes through a heating station 6, in which the resin application is briefly heated together with the paper to temperatures between 50 and 100 ° C. for a short time.
  • Suitable heat sources within the heating station 6 can be infrared radiators, microwave heat sources, hot air arrangements or the like.
  • the duration and degree of heating within the heating station 6 are such that the viscosity of the highly concentrated resin is suddenly reduced to such an extent that it can penetrate completely into the paper web or is absorbed by it.
  • the duration of the application of heat is so dimensioned that the impregnating agent used is not yet appreciably condensed out or polymerized.
  • a melamine resin was applied to a paper web with a maximum absorbency of 200 ml, 200 g / m 2 in the form of a 75% resin solution, which corresponds to approximately 150 g resin / m 3 and 50 g solvent / m 3, whereby the end product a density> 1 g / cm3 resulted.
  • FIG. 2 differs from that in FIG. 1 in that another, but known application mechanism is used here.

Landscapes

  • Paper (AREA)
  • Reinforced Plastic Materials (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Materials For Medical Uses (AREA)
EP87710008A 1987-04-08 1987-06-24 Procédé d'imprégnation de feuilles de papier hydrophiles, gonflables Expired - Lifetime EP0285734B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87710008T ATE83018T1 (de) 1987-04-08 1987-06-24 Verfahren zum impraegnieren von hydrophilen quellfaehigen papierbahnen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873711807 DE3711807A1 (de) 1987-04-08 1987-04-08 Verfahren zum impraegnieren von flaechigen faserstoffen
DE3711807 1987-04-08

Publications (3)

Publication Number Publication Date
EP0285734A2 true EP0285734A2 (fr) 1988-10-12
EP0285734A3 EP0285734A3 (en) 1989-02-01
EP0285734B1 EP0285734B1 (fr) 1992-12-02

Family

ID=6325112

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87710008A Expired - Lifetime EP0285734B1 (fr) 1987-04-08 1987-06-24 Procédé d'imprégnation de feuilles de papier hydrophiles, gonflables

Country Status (4)

Country Link
EP (1) EP0285734B1 (fr)
AT (1) ATE83018T1 (fr)
DE (2) DE3711807A1 (fr)
ES (1) ES2036596T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002028934A1 (fr) * 2000-10-05 2002-04-11 Basf Aktiengesellschaft Composition de resine melamine aqueuse stable concentree
WO2010003982A3 (fr) * 2008-07-08 2010-11-18 Kaindl Decor Gmbh Procédé et dispositif de séchage et de précondensation de produits imprégnés obtenus à partir d'un matériau en bande de type feuille imbibé de résine synthétique; produit imprégné exempt de résine de mélamine

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19915002A1 (de) * 1999-04-01 2000-10-05 Basf Ag Konzentrierte, stabile wäßrige Harzzusammensetzung
DE19956665A1 (de) * 1999-11-25 2001-05-31 Rudolf Ohlinger Gmbh & Co Kg Verfahren zur Herstellung von Filterschichten
DE10200793B4 (de) * 2002-01-11 2005-02-24 Bausch Gmbh Fußbodenbelagselement und Verfahren zu seiner Herstellung
CN107988847B (zh) * 2017-12-11 2020-08-04 浙江海洋大学 装饰纸生产用卧式浸渍干燥机

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2744047A (en) * 1952-06-02 1956-05-01 Masonite Corp Process of preparing decorative laminates
NL137537C (fr) * 1961-02-28
GB1146432A (en) * 1965-07-20 1969-03-26 Dunlop Co Ltd Resin impregnated fibrous sheets
FR2104707B1 (fr) * 1970-08-07 1973-11-23 Arjomari Prioux
DE2933998C2 (de) * 1979-08-22 1987-05-27 Otto Dürr Anlagenbau GmbH, 7000 Stuttgart Verfahren und Vorrichtung zur Herstellung eines imprägnierten Papier- oder Vliessubstrats
DE3140715A1 (de) * 1981-10-14 1983-04-21 Cassella Ag, 6000 Frankfurt Waessrige loesung eines melamin-formaldehyd-harzes und verfahren zu ihrer herstellung
DE3208728A1 (de) * 1982-03-11 1983-09-22 Cassella Ag, 6000 Frankfurt Mit aminoplastharzdispersionen beschichtete traegermaterialien und deren weiterverarbeitung zu schichtstoffen
US4458062A (en) * 1983-02-14 1984-07-03 American Cyanamid Company Continuously produced melt reacted melamine-formaldehyde resins
DD217252A1 (de) * 1983-08-22 1985-01-09 Wtz Holzverarbeitende Ind Verfahren zur herstellung rollfaehiger duroplastischer dekorfolien mit verbessertem erscheinungsbild
US4713138A (en) * 1984-12-26 1987-12-15 Nevamar Corporation Method of producing abrasion-resistant decorative laminate
DE3700344A1 (de) * 1986-10-24 1988-04-28 Cassella Ag Verfahren zur herstellung von melaminharzfolien

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002028934A1 (fr) * 2000-10-05 2002-04-11 Basf Aktiengesellschaft Composition de resine melamine aqueuse stable concentree
WO2010003982A3 (fr) * 2008-07-08 2010-11-18 Kaindl Decor Gmbh Procédé et dispositif de séchage et de précondensation de produits imprégnés obtenus à partir d'un matériau en bande de type feuille imbibé de résine synthétique; produit imprégné exempt de résine de mélamine
CN102138049A (zh) * 2008-07-08 2011-07-27 凯得装饰有限公司 用于干燥和预凝结由用合成树脂浸透的膜状的幅材形成的浸渍物的方法和装置及无三聚氰胺树脂的浸渍物

Also Published As

Publication number Publication date
EP0285734A3 (en) 1989-02-01
ES2036596T3 (es) 1993-06-01
ATE83018T1 (de) 1992-12-15
DE3711807A1 (de) 1988-10-27
EP0285734B1 (fr) 1992-12-02
DE3782934D1 (de) 1993-01-14

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