EP1322816A1 - Procede de traitement de bandes de papier, et papier pour impregnation par des resines synthetiques - Google Patents
Procede de traitement de bandes de papier, et papier pour impregnation par des resines synthetiquesInfo
- Publication number
- EP1322816A1 EP1322816A1 EP00966591A EP00966591A EP1322816A1 EP 1322816 A1 EP1322816 A1 EP 1322816A1 EP 00966591 A EP00966591 A EP 00966591A EP 00966591 A EP00966591 A EP 00966591A EP 1322816 A1 EP1322816 A1 EP 1322816A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- paper
- mixture
- resins
- synthetic resins
- drying
- 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
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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/70—Multistep processes; Apparatus for adding one or several substances in portions or in various ways to the paper, not covered by another single group of this main group
- D21H23/72—Plural serial stages only
-
- 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
- D21H27/26—Structures being applied on the surface by special manufacturing processes, e.g. in presses characterised by the overlay sheet or the top layers of the structures
Definitions
- the present invention relates to a method of treating paper webs for the manufacture of paper for impregnation with synthetic resins, comprising the following steps.
- the invention will find its application mainly in the field of stratification stratification in high or / and low pressure of the supports such as particle boards, wood fibers, plywood or others. Papers for impregnation with synthetic resins are commonly called "Dekorpapier", a term of German origin.
- “Dekorpapier” is understood to mean a paper intended for impregnation with synthetic resins. This paper is, after printing or not, impregnated to be stamped (laminating) on supports such as particle board, wood fiber boards, plywood or other. Such "laminate” supports are used as a replacement for wood in the furniture industry, as well as floor coverings, wall coverings and the like.
- the invention concerns not only the paper industries for its transformation, but also those related to the application of "Dekorpapier", in particular furniture.
- “Dekorpapiers” are frequently used which can be applied under pressure and under temperature on a support of the wood fiber particle board or plywood type. On the basis of a sheet formed from paper and optionally comprising fillers, a desired pattern is produced.
- the material thus obtained is applied to the physical support to be covered, for example the panel of a piece of furniture.
- the current “Dekorpapier” is therefore a paper as it is, without pretreatment.
- This important manufacturing step requires large quantities of raw material (mixture of resins) in order to allow sufficient impregnation of the paper.
- the present invention aims to overcome the drawbacks of the methods currently used.
- the invention aims to significantly improve the quality of these papers and at the same time obtain a reduction in certain products used as filler in these technical papers.
- These improvements consist mainly in obtaining a paper surface which is optimally suitable for printing, and this without preventing the paper once printed from absorbing the quantity of resin necessary for lamination on supports such as particles, wood fiber panels, plywood or other.
- the invention makes it possible to obtain a surface different from the decor papers, thus making it possible, with the use of modified aqueous printing inks, to fix the photographic image with better fidelity.
- these papers are obtained with the following treatment.
- a mixture of melamine-formaldehyde resins, formaldehyde urea, self-crosslinking acrylics and hardeners is inserted inside.
- a second treatment follows with a mixture of melamine-formaldehyde resins, formaldehyde urea, self-crosslinking acrylics, hardeners and pigments.
- calendering is carried out to obtain the optimal smoothness for high-fidelity gravure printing.
- a multi-phase treatment system for paper intended for lamination on paper support, particle board, wood fiber board, or other treated inside with a mixture of melamine-formaldehyde resins, urea formaldehyde, acrylics self-crosslinking and hardening, and then on the surface with a mixture of melamine-formaldehyde resins, urea formaldehyde, self-crosslinking acrylics, hardeners, and pigments, obtaining a high-fidelity printing result using special aqueous inks, and, at the same time, saving pigments in paper basic.
- “Dekorpapier” obtained by the implementation of the invention allows, with a higher smoothness, a printing of higher fidelity as well as a significant saving of printing inks, in particular in aqueous inks.
- the quantity of resins used is substantially reduced with an equivalent final result, ie identical mechanical properties (surface resistance and adhesion to supports).
- the process for treating paper webs for the manufacture of paper for impregnation with synthetic resins comprises the following steps: insertion into the paper of a mixture based on resins; consecutively or simultaneously to the step of inserting the mixture, treatment of at least one face of the paper strip by application of a mixture based on paper drying resins; surface treatment of at least one of the faces of the paper strip by application of a resin-based mixture; paper drying.
- insertion into the paper of a mixture based on resins consecutively or simultaneously to the step of inserting the mixture, treatment of at least one face of the paper strip by application of a mixture based on paper drying resins; surface treatment of at least one of the faces of the paper strip by application of a resin-based mixture; paper drying.
- the strip of paper is smoothed on at least one side;
- - one uses, for the mixture and / or for the mixture, a composition of melamine-formaldehyde, urea-formaldehyde and acrylic resins;
- the mixtures contain at least one hardener component.
- the invention also relates to a paper for impregnation with synthetic resins which is obtained from a strip of paper by implementing the method.
- FIG. 1 is a block diagram illustrating the steps for carrying out the invention according to a preferred variant.
- strips of paper is intended to mean the tablecloth initially used for the manufacture of decor paper and essentially comprising alfa cellulose and optionally fillers of the Ti0 2 type (titanium dioxide). Pigments can be added.
- the invention firstly relates to a method of processing paper strips 1 with a view to their use for the manufacture of "Dekorpapier".
- a strip of paper 1 undergoes a first treatment in step numbered 3 constituting an insertion into the paper of a mixture A based on resin.
- the mixture A used is a composition of formaldehyde melamine resins and / or formaldehyde and acrylic urea, hardeners and fillers.
- these paper strips are treated on the surface (one or two faces) with a mixture B based on resins preferentially identical to mixture A.
- This insertion and application step can be carried out with a SIZE-PRESS (Leimpresse / press for take-off) and a “coating-coating machine”, or with a FILM-PRESS which unites the two functions.
- a drying step 5 is then carried out by means of common means such as drying rollers, infrared rays or the like.
- the mixture C can consist of a composition substantially equivalent to that described above for the mixture A.
- This surface treatment can be carried out on one or both sides of the paper strip 1.
- the smoothing undergone by the paper can be carried out in a calender or an equivalent material.
Landscapes
- Paper (AREA)
- Wrappers (AREA)
- Laminated Bodies (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MC2431A MC200022A1 (fr) | 1999-09-21 | 1999-09-21 | Systeme eco-decor traitement en phases muliples des papiers destines a la stratification des supports tels que les panneaux de particules les panneaux en fibres de bois les contreplaques ou autres |
| PCT/MC2000/000001 WO2001021892A1 (fr) | 1999-09-21 | 2000-09-20 | Procede de traitement de bandes de papier, et papier pour impregnation par des resines synthetiques |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1322816A1 true EP1322816A1 (fr) | 2003-07-02 |
| EP1322816B1 EP1322816B1 (fr) | 2010-02-03 |
Family
ID=19738391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00966591A Expired - Lifetime EP1322816B1 (fr) | 1999-09-21 | 2000-09-20 | Procede de traitement de bandes de papier pour la production du papier a impregner par des resines synthetiques |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1322816B1 (fr) |
| AT (1) | ATE457044T1 (fr) |
| AU (1) | AU2000276922A1 (fr) |
| DE (1) | DE60043798D1 (fr) |
| MC (1) | MC200022A1 (fr) |
| WO (1) | WO2001021892A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MC200104A1 (fr) * | 2006-10-26 | 2007-12-12 | Ernst Heller | Nouvelle méthode de production de la couche imprimée imitation bois dans le produit sols stratifiés par une machine à papier munie d'une filmpresse etd'une softcalandre |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3578483A (en) * | 1969-05-14 | 1971-05-11 | Formica Corp | Process for improving the printability of the surface of alpha-cellulose paper to be used as the decorative sheet in a decorative laminate |
| DE2801396A1 (de) * | 1978-01-13 | 1979-07-19 | Sued West Chemie Gmbh | Duroplastharzbeladene traegermaterialien, ein verfahren zu ihrer herstellung sowie deren verwendung |
| DE2927746C2 (de) * | 1979-07-10 | 1981-05-27 | Th. Goldschmidt Ag, 4300 Essen | Verfahren zur Herstellung eines dekorativen Fertigeffektfilmes |
| DE2949306A1 (de) * | 1979-12-07 | 1981-06-11 | Letron GmbH, 8750 Aschaffenburg | Kunststoff-furnier sowie verfahren zur herstellung eines kunststoff-furnieres |
| JP2860707B2 (ja) * | 1992-11-24 | 1999-02-24 | キャスコ ノーベル アクチェボラーグ | フィルム複合材料 |
| DE4413619C2 (de) * | 1993-12-02 | 1996-09-26 | Wkp Wuerttembergische Kunststo | Verfahren zum Herstellen von Papier und von Laminaten |
| ES2185076T3 (es) * | 1997-04-12 | 2003-04-16 | Ahlstrom Osnabruck Gmbh | Soporte de impresion de papel impregnado por una cara. |
| IT1292294B1 (it) * | 1997-04-29 | 1999-01-29 | Liri Ind Srl | Metodo per la produzione di carte decorative flessibili e materiale ottenuto con tale metodo. |
-
1999
- 1999-09-21 MC MC2431A patent/MC200022A1/fr unknown
-
2000
- 2000-09-20 DE DE60043798T patent/DE60043798D1/de not_active Expired - Lifetime
- 2000-09-20 AU AU2000276922A patent/AU2000276922A1/en not_active Abandoned
- 2000-09-20 WO PCT/MC2000/000001 patent/WO2001021892A1/fr not_active Ceased
- 2000-09-20 AT AT00966591T patent/ATE457044T1/de not_active IP Right Cessation
- 2000-09-20 EP EP00966591A patent/EP1322816B1/fr not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0121892A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE457044T1 (de) | 2010-02-15 |
| DE60043798D1 (de) | 2010-03-25 |
| AU2000276922A1 (en) | 2001-04-24 |
| EP1322816B1 (fr) | 2010-02-03 |
| WO2001021892A1 (fr) | 2001-03-29 |
| MC200022A1 (fr) | 2001-03-28 |
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