EP0259584B1 - Verfahren zur Beschleunigung der Weissgradregeneration hitzebehandelter Papiere - Google Patents

Verfahren zur Beschleunigung der Weissgradregeneration hitzebehandelter Papiere Download PDF

Info

Publication number
EP0259584B1
EP0259584B1 EP87110651A EP87110651A EP0259584B1 EP 0259584 B1 EP0259584 B1 EP 0259584B1 EP 87110651 A EP87110651 A EP 87110651A EP 87110651 A EP87110651 A EP 87110651A EP 0259584 B1 EP0259584 B1 EP 0259584B1
Authority
EP
European Patent Office
Prior art keywords
heat
whiteness
paper web
regeneration
ultraviolet
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.)
Expired - Lifetime
Application number
EP87110651A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0259584A1 (de
Inventor
Bernd Dr.-Ing. Reinhardt
Ulrik Dipl.-Ing. Arneberg
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.)
Kammerer GmbH
Original Assignee
Kammerer 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 Kammerer GmbH filed Critical Kammerer GmbH
Priority to AT87110651T priority Critical patent/ATE59070T1/de
Publication of EP0259584A1 publication Critical patent/EP0259584A1/de
Application granted granted Critical
Publication of EP0259584B1 publication Critical patent/EP0259584B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/04—Physical treatment, e.g. heating, irradiating

Definitions

  • the invention relates to a method for accelerating the whiteness regeneration or stability of paper webs of different material compositions which have been subjected to a heat treatment.
  • a partial or complete whiteness regeneration of the heat-induced paper should, however, take place as quickly as possible. This is especially true when coloristic aspects have to be considered. For example, in the production of structural foam wallpapers with different colors, a constant comparison of the finished product with a constant color template is carried out and, if necessary, the color of the PVC plastisols used is corrected. A continuous increase in the degree of whiteness (whiteness regeneration) of the finished foam wallpaper, especially when the foam is not applied to the entire surface of the backing paper, considerably complicates the work of the colorists when it comes to color formulation. Even a difference in whiteness of 1.5 to 2% absolutely affects the untrained eye. Coloristically trained people may find even smaller differences in whiteness disturbing.
  • the object of the present invention is therefore to propose a method for the accelerated whiteness regeneration of heat-treated papers, which eliminates the disadvantages and shortcomings mentioned above.
  • This object is achieved in that the paper web is exposed to high-energy ultraviolet radiation (UV light) with or without an increase in moisture immediately after the heat treatment and before rolling up.
  • UV light high-energy ultraviolet radiation
  • a process has become known from EP-A 0 120 095, which is used in the production of so-called "cast coated papers". 1-30 g / m 2 of water are applied to the back of the paper, specifically in a nip in which the coating is pressed onto the paper. Humidification is carried out using nozzles or engraved rollers, which take up water from a water supply. This is to prevent the curling of the coated paper that occurs during production.
  • Figure 1 demonstrates the partial whiteness regeneration of a conventional, known wallpaper base paper (duplex paper, top layer wood-free, underlay wood-containing), which is used as a substrate for foam wallpapers, after a practical heat treatment of 220 ° C for 42 s.
  • the heat-treated paper was stored under daylight.
  • a drop in the degree of whiteness (according to Hunter) of 26.1% in absolute terms due to the already mentioned heat effect is followed by the partial whiteness regeneration.
  • the whiteness regeneration is only minimal.
  • this whiteness recovery is problematic, especially within the first 25 minutes after the heat-induced yellowing.
  • a whiteness constancy is reached after only about 10 hours by UV radiation, after about 45 hours when stored under daylight and after about 90 hours when stored in the dark.
  • the final whiteness of UV-irradiated paper is also around 15% higher than that of heat-induced paper exposed to daylight.
  • the heat ind decorated paper After just 10 minutes of storage, the heat ind decorated paper, which was exposed to a relative humidity of 95%, achieved the desired whiteness constancy. Existing slight increases in whiteness up to a storage period under daylight of 90 min are max. 1% absolute and can no longer be determined with the human eye. Similar results were also obtained by dampening the heat-treated paper with water.

Landscapes

  • Paper (AREA)
  • Catalysts (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Programmable Controllers (AREA)
  • Ladders (AREA)
EP87110651A 1986-09-10 1987-07-23 Verfahren zur Beschleunigung der Weissgradregeneration hitzebehandelter Papiere Expired - Lifetime EP0259584B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87110651T ATE59070T1 (de) 1986-09-10 1987-07-23 Verfahren zur beschleunigung der weissgradregeneration hitzebehandelter papiere.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3630772 1986-09-10
DE19863630772 DE3630772A1 (de) 1986-09-10 1986-09-10 Verfahren zur beschleunigung der weissgradregeneration hitzebehandelter papiere

Publications (2)

Publication Number Publication Date
EP0259584A1 EP0259584A1 (de) 1988-03-16
EP0259584B1 true EP0259584B1 (de) 1990-12-12

Family

ID=6309275

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87110651A Expired - Lifetime EP0259584B1 (de) 1986-09-10 1987-07-23 Verfahren zur Beschleunigung der Weissgradregeneration hitzebehandelter Papiere

Country Status (7)

Country Link
EP (1) EP0259584B1 (enExample)
AT (1) ATE59070T1 (enExample)
DD (1) DD262049A5 (enExample)
DE (2) DE3630772A1 (enExample)
ES (1) ES2001747B3 (enExample)
FI (1) FI873772A7 (enExample)
NO (1) NO873765L (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5622259A (en) * 1995-06-07 1997-04-22 Church; Jonathan M. Reduction of discoloration in plastic materials

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0120095A1 (en) * 1982-09-28 1984-10-03 Kanzaki Paper Manufacturing Company Limited Method of manufacturing cast-coated paper

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3625743A (en) * 1967-12-12 1971-12-07 Tamotsu Watanabe Method for impregnating running paper with moisture
DE2808931A1 (de) * 1977-03-04 1978-09-07 Dynachem Corp Verfahren zum beschichten oder bedrucken eines substrates

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0120095A1 (en) * 1982-09-28 1984-10-03 Kanzaki Paper Manufacturing Company Limited Method of manufacturing cast-coated paper

Also Published As

Publication number Publication date
DE3630772C2 (enExample) 1988-08-11
FI873772A0 (fi) 1987-08-31
ATE59070T1 (de) 1990-12-15
DE3630772A1 (de) 1988-03-24
FI873772L (fi) 1988-03-11
DD262049A5 (de) 1988-11-16
DE3766675D1 (de) 1991-01-24
NO873765D0 (no) 1987-09-09
ES2001747B3 (es) 1991-06-01
NO873765L (no) 1988-03-11
ES2001747A4 (es) 1988-06-16
EP0259584A1 (de) 1988-03-16
FI873772A7 (fi) 1988-03-11

Similar Documents

Publication Publication Date Title
DE3325028C2 (de) Verfahren zur Herstellung eines eine Oberflächentextur aufweisenden gehärteten Substrats
DE60016846T2 (de) Zusammensetzung und Verfahren zur Herstellung von Oberflächennutzschichtbeschichtung mit kontrolliertem Glanz
DE2847660C2 (enExample)
DE102006042063B4 (de) Verfahren zur Einstellung des Glanzgrades und der Haptik von dekorativen und funktionellen Oberflächen
DE69705727T2 (de) Verfahren und vorrichtung zum dekorieren von profilen aus metall, kunststoff oder dergleichen
DE2321442A1 (de) Verfahren zur herstellung eines beschichteten polyesterfilms
EP0549607B1 (de) Beschichtetes papier
EP2891562A1 (de) Paneel mit Dekorschicht sowie Verfahren zum Bedrucken von Platten
EP0367965B1 (de) Papierklebebänder
EP3576962A1 (de) Wärmebehandeltes pvc-kunststoffpaneel
DE4135697C2 (de) Verfahren zur Verbesserung von Holzoberflächeneigenschaften
US4124431A (en) Dimensionally stable, calendered vinyl film
DE2416017A1 (de) Vinylasbest- bzw. asphalt-bodenfliesen
DE102015110276A1 (de) Verfahren zur Herstellung eines lackierten, dekorativen Laminates
DE3410797C2 (de) Verfahren zur Herstellung eines Trägers für photographisches Papier
CH662816A5 (de) Verfahren zur herstellung einer vernetzten pvc-nutzschicht.
DE602004006487T2 (de) VERFAHREN UND VORRICHTUNG ZUR BESCHICHTUNG VON TEILEN aus natürlichen oder kunstlichen Materialien
DE3630772C2 (enExample)
DE2425217A1 (de) Verfahren und vorrichtung zur herstellung von bodenbelagsmaterial
DE69511646T2 (de) Verfahren zur Herstellung von überzogenen Holzfaserplatten mit gerundten Rändern und durch dieses Verfahren hergestellte Platten
DE1571116A1 (de) Verfahren und Vorrichtung zur Herstellung streifenfrei beschichteter Bahnen
EP0570607A1 (de) Verfahren zum Auftragen von Lack und Farbe auf ein Substrat
DE2755189B2 (de) Verfahren zur Ausbildung geschlossener und festhaftender Lackschichten aus UV- oder ESH- Lacken auf inhomogenen, insbesondere teilweise bedruckten Substratoberflächen
EP0514631A1 (de) Mehrschichtiges Bildempfangsmaterial für thermische Farbstoffübertragungsverfahren und Verfahren zu seiner Herstellung
DE2710250A1 (de) Flaechige materialien

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IT LI LU NL SE

ITCL It: translation for ep claims filed

Representative=s name: FIAMMENGHI FIAMMENGHI RACHELI

GBC Gb: translation of claims filed (gb section 78(7)/1977)
TCNL Nl: translation of patent claims filed
EL Fr: translation of claims filed
17P Request for examination filed

Effective date: 19880414

17Q First examination report despatched

Effective date: 19890825

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 59070

Country of ref document: AT

Date of ref document: 19901215

Kind code of ref document: T

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3766675

Country of ref document: DE

Date of ref document: 19910124

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19910710

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19910718

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19910723

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19910724

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 19910724

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19910731

Ref country code: LI

Effective date: 19910731

Ref country code: CH

Effective date: 19910731

Ref country code: BE

Effective date: 19910731

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
BERE Be: lapsed

Owner name: KAMMERER G.M.B.H.

Effective date: 19910731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19920201

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19920331

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19920723

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19920723

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19930401

EUG Se: european patent has lapsed

Ref document number: 87110651.4

Effective date: 19920210

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19990601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050723