FI90892C - Procedure for checking blade beards in coating stations in a paper coating machine - Google Patents

Procedure for checking blade beards in coating stations in a paper coating machine Download PDF

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Publication number
FI90892C
FI90892C FI923729A FI923729A FI90892C FI 90892 C FI90892 C FI 90892C FI 923729 A FI923729 A FI 923729A FI 923729 A FI923729 A FI 923729A FI 90892 C FI90892 C FI 90892C
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FI
Finland
Prior art keywords
blade
machine
width
paste
blades
Prior art date
Application number
FI923729A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI923729A0 (en
FI923729A (en
FI90892B (en
Inventor
Asko Hyttinen
Aki Kohonen
Original Assignee
Kaukas Oy
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
Priority claimed from FI914320A external-priority patent/FI90264C/en
Application filed by Kaukas Oy filed Critical Kaukas Oy
Priority to FI923729A priority Critical patent/FI90892C/en
Publication of FI923729A0 publication Critical patent/FI923729A0/en
Priority to EP19920115312 priority patent/EP0533022A1/en
Publication of FI923729A publication Critical patent/FI923729A/en
Publication of FI90892B publication Critical patent/FI90892B/en
Application granted granted Critical
Publication of FI90892C publication Critical patent/FI90892C/en

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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
    • 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
    • D21H23/32—Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper
    • D21H23/34—Knife or blade type coaters
    • 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
    • D21H25/08—Rearranging applied substances, e.g. metering, smoothing; Removing excess material
    • D21H25/10—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with blades

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Drying Of Solid Materials (AREA)

Description

i 90892i 90892

Menetelma paperin paailystyskoneen påailystysasemien teråparran hallitsemiseksiA method for controlling the blade of the pickling stations of a paper punching machine

KeksinnOn kohteena on menetelma paperin paailys-5 tyksessa kåytettavan paailystyskoneen padllystysasemien teraile kertyvan terdparran hallitsemiseksi. Menetelmassa terdpartaan tuodaan energiaa kuivattimella ja/tai saade-tåån paailystysseoksen lSmpOtilaa siten, etta teraile syntyva parta ei aiheuta ongelmia paailystyksessa. Kui-10 vattimella terapartaan tuotu energia muuttuu lammOksi haihduttaen edelleen teraparrasta nestetta. Paailystysseoksen lamptttilaa saatamaiia voidaan seoksen reologiaa muuttaa siten, etta teraparta ei aiheuta ongelmia paai-lystyksessa.The invention relates to a method for controlling the accumulation of terd bearings in the blades of a punching machine used in paper punching. In the method, energy is introduced into the terd beard by means of a dryer and / or the lSmpO state of the Saade-t barking mixture so that the beard formed by the blade does not cause problems in the roasting. The energy introduced into the therapeutic blade by the Kui-10 cotton pad becomes lammO, further evaporating the liquid from the therapeutic blade. The rheology of the mixture can be changed so that the therapeutic element does not cause problems in the composition.

15 Paallystettyja painopapereita valmistettaessa on paperin paailystys hyvin tarkea prosessivaihe. Paailystyksessa paperin pinnalle levitetaan paallystysasemilla yhtenainen pigmenteista, sideaineista, apuaineista ja ve-desta koostuva paailystysseos, joka paailystysseoksen le-20 vittamisen jaikeen kuivataan. Paailystysseosta kutsutaan paailystyspastaksi.15 In the production of baled printing papers, paper pickling is a very important process step. In pickling, a uniform pickling mixture of pigments, binders, auxiliaries and water is applied to the surface of the paper at the baling stations, which is dried until the spreading mixture is spread. The baking mixture is called baking paste.

Paperin paailystyksen tarkoituksena on parantaa paperin ominaisuuksia kuten vaaleutta ja painojaljen ta-saisuutta. Kalanteroidun paallystetyn paperin killto on 25 myOs huomattavasti korkeampi verrattuna paailystamattO-maan paperiin.The purpose of paper pickling is to improve the properties of the paper, such as brightness and smoothness of the printing foot. The guilt of calendered baled paper is 25 myOs significantly higher compared to unpolished paper.

Paperin pinnalle levitettdvan paallysteen maaraa saadetaan muuttamalla paallystyspastan kuiva-ainemaaraa tai muuttamalla paailystyskoneen paailystysasemalla ole-30 van kaapimen, jota kutsutaan teraksi, paperiin kohdista-maa kaapimispainetta.The amount of baling to be applied to the surface of the paper is obtained by changing the dry matter content of the baling paste or by changing the scraping pressure applied to the paper by a scraper at the baling station of the baling machine called steel.

Kaapimispainetta kutsutaan terapaineeksi. saadet-taessa paperin paailystemaaraa pienenee paallystemaara, kun terapainetta nostetaan tai pastan kuiva-ainepitoi-35 suutta lasketaan. Vastaavasti paallystemaara kasvaa, kun 2 teråpainetta pienennetaan tai pastan kuiva-ainepitoisuut-ta nostetaan.Scraping pressure is called therapeutic material. When the paper pile is obtained, the pile density is reduced when the grain pressure is increased or the dry matter content of the paste is reduced. Correspondingly, the baling volume increases when the 2 blade pressures are reduced or the dry matter content of the pasta is increased.

Ter3paine riippuu halutun paailystemå3r3n lisaksi pigmenttien ja sideaineen ominaisuuksista, paailystetta-5 van pohjapaperin karheudesta ja huokoisuudesta seka paai-lystyskoneen nopeudesta.The pressure depends, in addition to the desired coating system, on the properties of the pigments and binder, the roughness and porosity of the base paper to be coated and the speed of the coating machine.

Teraparta muodostuu ongelmalliseksi silloin, kun parrasta lentaa roiskeita, jotka tarttuvat paailystettyyn paperiin. Roiskeet nakyvat paperissa viiruina tai pyOrei-10 na pastakertymina. Viirut tai pastakertymat aiheuttavat paperin jatkojalostuksessa katkoja ja painettavuusongel-mia. Koska teraparran muodostuminen paallystyskoneen te-rålle kasvaa nostettaessa paallystyskoneen nopeutta, ra-joittaa teraparta paallystyskoneen ajonopeutta.A sharp beard becomes problematic when splashes fly from the beard that stick to the baked paper. Splashes appear on the paper as streaks or pyOrei-10 as paste deposits. Streaks or piles of paste cause breaks and printability problems in the further processing of the paper. Since the formation of the blade on the blade of the baling machine increases as the speed of the baling machine is increased, the blade limits the running speed of the baling machine.

15 Nyt on keksitty, etta kuivaamalla paailystysase- malla terapartaa ja/tai saatamaiia paailystysseoksen lam-pdtilaa voidaan paallystyskoneen nopeutta oleellisesti nostaa ilman, etta teraparta jattaa viiruja, roiskeita tai pastakasaumia paperiin.It has now been discovered that by drying the therapy blade and / or the lamp room of the bleaching mixture in the pickling station, the speed of the baling machine can be substantially increased without the bleach, splashes or paste stacks leaving the paper on the paper.

20 Tamdn keksinndn tarkoituksena on siten aikaansaada teraparta kuivaksi ja/tai muuttaa paailystyspastan reolo-giaa pastan lampdtilaa saatamaiia sellaiseksi, etta paai-lystyskoneen nopeutta ei jouduta pudottamaan. Tama tar-koitus saavutetaan keksinnOn mukaisella menetelmaiia, 25 jolle on tunnusomaista, etta paallystyskoneen teraile tai teran laheisyyteen asennetaan kuivatin, jolla kuivataan terapartaa siten, etta teraparta pysyy kuivana paallystyskoneen eri ajonopeuksissa, ja/tai asentamalla paallystyskoneen pastan varasto- tai konekiertoon lammdnvaihdin, 30 jolla pastaa voidaan jaahdyttaa ja/tai lammittaa siten, etta pastan reologisiin ominaisuuksiin voidaan pastan lampdtilaa saatamaiia vaikuttaa siten, etta teraparta pysyy kuivana paallystyskoneen eri ajonopeuksissa.It is therefore an object of the present invention to provide the therapy blade dry and / or to change the rheology of the baking paste so that the lamp state of the paste is such that the speed of the baling machine does not have to be reduced. This object is achieved by a method according to the invention, characterized in that a dryer is installed in the blade of the baling machine or in the vicinity of the blade to dry the therapy blade so that the blade stays dry at different speeds of the baling machine and / or by installing a baler the pasta can be cooled and / or heated in such a way that the rheological properties of the pasta can be influenced by the lamp state of the pasta so that the therapy blade remains dry at different driving speeds of the baling machine.

Uusi menetelma soveltuu kaikille paailystyskoneil-35 le, joiden teran laheisyyteen tai teraile voidaan asentaa 90892 3 terSparran kuivatin ja/tai pastan kone- tal varastokier-toon lammOnvaihdin.The new method is suitable for all roasting machines in which a 90892 3 terSparra dryer and / or a paste machine can be installed in the storage circuit with a lamp changer.

Claims (9)

1. Menetelma paperin paailystyskoneen paailystys-asemien teraile kertyvfln terSparran hallitsemiseksi, 5 tunnettu siita, etta paailystyskoneen teraile tai teran laheisyyteen asennetaan kuivatin, Jolla kulvataan terapartaa siten, etta teraparta pysyy kuivana paailys-tyskoneen eri ajonopeuksissa, ja/tai paailystyskoneen pastan kone- tai varastokiertoon asennetaan lammdnvaih-10 din, Jolla voidaan pastan lampdtilaa saataa siten, etta teråparta pysyy kuivana paailystyskoneen eri ajonopeuksissa.A method for controlling the accumulation of terSparra in the blades of a paper punching machine, characterized in that a dryer is installed in the blade of the punching machine or in the vicinity of the blade. a lammdnvaih-10 din is installed, which can be used to bring the lamp space of the paste so that the blade stays dry at the different speeds of the roasting machine. 2. Patenttivaatimuksen 1 mukainen menetelma, tunnettu siita, etta paailystyskoneen teraan 15 asennetaan såhkOvastus tai sahkOvastuksia koko teran le-veydelle Ja vastuksen tai vastuksien yhteenlaskettu kui-vatusteho on 0,1 - 5,0 kW teran leveysmetria kohden.Method according to Claim 1, characterized in that an electric resistor or resistors are mounted on the blade 15 of the pickling machine over the entire width of the blade and the combined drying power of the resistor or resistors is 0.1 to 5.0 kW per meter of blade width. 3. Patenttivaatimuksen 1 mukainen menetelma, tunnettu siita, etta paailystyskoneen teraile 20 asennetaan 0,01 - 0,7 m etaisyydelle sahkOvastus tai -vastuksia koko teran leveydelle Ja vastuksen tai vastuksien yhteenlaskettu kuivatusteho on 0,1 - 5,0 kW teran leveysmetria kohden.Method according to Claim 1, characterized in that the blades 20 of the pickling machine are mounted at a distance of 0.01 to 0.7 m from an electric resistor or resistors over the entire width of the blade, and the total drying power of the resistor or resistors is 0.1 to 5.0 kW per meter of blade width. 4. Patenttivaatimuksen 1 mukainen menetelma, 25 tunnettu siita, etta paailystyskoneen teraile asennetaan 0,01 - 0,7 m:n etaisyydelle mikroaaltokuivatin tai -kuivattimia koko teran leveydelle Ja mikroaaltokui-vattimen tai -kuivattimien yhteenlaskettu kuivatusteho on 0,1 - 5,0 kW teran leveysmetria kohden.Method according to Claim 1, characterized in that a microwave dryer or dryers are installed on the blades of the roasting machine at a distance of 0.01 to 0.7 m over the entire width of the blade, and the combined drying power of the microwave dryer or dryers is 0.1 to 5.0. kW per blade width meter. 5. Patenttivaatimuksen 1 mukainen menetelma, tunnettu siita, etta paailystyskoneen teraile asennetaan 0,01 - 0,7 nun etaisyydelle IR-kuivatin tai -kuivattimia koko teran leveydelle Ja IR-kuivattimen tai -kuivattimien yhteenlaskettu kuivatusteho on 0,1 - 5,0 kW 35 teran leveysmetria kohden. 90892Method according to Claim 1, characterized in that IR blowers or dryers are installed on the blades of the roasting machine at a distance of 0.01 to 0.7 nu over the entire width of the blade, and the combined drying power of the IR dryer or dryers is 0.1 to 5.0 kW. 35 blades per meter of width. 90892 6. Patenttivaatimuksen 1 mukainen menetelma, tunnettu siita, etta paailystyskoneen teraile asennetaan 0,01 - 0,7 m:n etaisyydelle kuumailmasuuttimia koko ter&n leveydelle ja kuumailmasuuttimien yhteenlas- 5 kettu kuivatusteho on 0,1 - 5,0 kW ter&n leveysmetria kohden.Method according to Claim 1, characterized in that hot air nozzles are installed on the blades of the pickling machine at a distance of 0.01 to 0.7 m over the entire width of the blade and the combined drying power of the hot air nozzles is 0.1 to 5.0 kW per meter of width. 7. Patenttivaatimuksen 1 mukainen menetelm&, tunnettu siita, etta p&&llystyskoneen teraile asennetaan 0,01 - 0,7 m:n etaisyydelle putki, jonka l&pi 10 puhalletaan kuivatusilmaa koko ter&n leveydelle ja putken l&pi virtaavan kuivatusilman yhteenlaskettu kuivatusteho on 0,1 - 5,0 kw ter&n leveysmetria kohden.A method according to claim 1, characterized in that a pipe is installed at a distance of 0.01 to 0.7 m on the blades of the coating machine, the drying air of which is blown with drying air over the entire width of the blade and the combined drying power of the drying air flowing through the pipe is 0.1 to 5.0. kw ter & n per meter of width. 8. Patenttivaatimuksen 1 mukainen menetelma, tunnettu siita, ett& p&ailystyskoneen pastan ko- 15 nekiertoon asennetaan l&mmfinvaihdin, jolla voidaan pastan lampotiiaa saataa +5 - +90 eC:n vaiilia.A method according to claim 1, characterized in that a heat exchanger is installed in the machine circuit of the paste of the paste machine, with which the temperature of the paste can be brought to a temperature of +5 to +90 eC. 9. Patenttivaatimuksen 1 mukainen menetelma, tunnettu siita, etta p&&llystyskoneen pastan va-rastokiertoon asennetaan l&mmdnvaihdin, jolla voidaan 20 pastan lampOtilaa saataa +5 - +90 eC:n vaiilia.A method according to claim 1, characterized in that a heat exchanger is installed in the storage circuit of the paste of the coating machine, with which a temperature of +5 to +90 eC can be obtained for 20 paste lamps.
FI923729A 1991-09-13 1992-08-19 Procedure for checking blade beards in coating stations in a paper coating machine FI90892C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI923729A FI90892C (en) 1991-09-13 1992-08-19 Procedure for checking blade beards in coating stations in a paper coating machine
EP19920115312 EP0533022A1 (en) 1991-09-13 1992-09-08 A method for controlling the coating colour build-up on a blade at coating stations in a paper coating machine

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FI914320 1991-09-13
FI914320A FI90264C (en) 1991-09-13 1991-09-13 Procedure for drying the blade beard, which is collected on the sheets of the coating stations in a paper coating machine
FI923729 1992-08-19
FI923729A FI90892C (en) 1991-09-13 1992-08-19 Procedure for checking blade beards in coating stations in a paper coating machine

Publications (4)

Publication Number Publication Date
FI923729A0 FI923729A0 (en) 1992-08-19
FI923729A FI923729A (en) 1993-03-14
FI90892B FI90892B (en) 1993-12-31
FI90892C true FI90892C (en) 1994-04-11

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ID=26159015

Family Applications (1)

Application Number Title Priority Date Filing Date
FI923729A FI90892C (en) 1991-09-13 1992-08-19 Procedure for checking blade beards in coating stations in a paper coating machine

Country Status (2)

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EP (1) EP0533022A1 (en)
FI (1) FI90892C (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3152918A (en) * 1961-06-02 1964-10-13 Kimberly Clark Co Process of coating paper with a trailing blade
DE3908386A1 (en) * 1989-03-15 1990-09-27 Jagenberg Ag METHOD AND DEVICE FOR COATING MATERIAL SHEETS, ESPECIALLY PAPER OR CARDBOARD SHEETS
NL9001303A (en) * 1990-06-08 1992-01-02 Knp Papier Bv APPARATUS AND METHOD FOR PREVENTING ANTI-GROWTH ON THE STRAINER OF A PAPER IRONER.

Also Published As

Publication number Publication date
FI923729A0 (en) 1992-08-19
FI923729A (en) 1993-03-14
FI90892B (en) 1993-12-31
EP0533022A1 (en) 1993-03-24

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