FI121187B - Release paper base paper - Google Patents
Release paper base paper Download PDFInfo
- Publication number
- FI121187B FI121187B FI20030905A FI20030905A FI121187B FI 121187 B FI121187 B FI 121187B FI 20030905 A FI20030905 A FI 20030905A FI 20030905 A FI20030905 A FI 20030905A FI 121187 B FI121187 B FI 121187B
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- FI
- Finland
- Prior art keywords
- paper
- acrylic acid
- copolymer
- weight
- base
- Prior art date
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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
- 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
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/36—Polyalkenyalcohols; Polyalkenylethers; Polyalkenylesters
-
- 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
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/16—Sizing or water-repelling agents
-
- 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
- D21H27/06—Vegetable or imitation parchment; Glassine paper
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
Description
Irrokepaperin pohjapaperi Tämän keksinnön kohteena on irrokepaperin pohjapaperi, joka käsittää ainakin jommallakummalla puolellaan pintaliimakerroksen, joka käsittää 5 epäorgaanista pigmenttiä ja polyvinyylialkoholia (PVA).BACKGROUND OF THE INVENTION The present invention relates to a release paper base paper comprising, at least on one side, a surface adhesive layer comprising 5 inorganic pigments and polyvinyl alcohol (PVA).
Glassiinityyppisen pohjapaperin pintaliimaaminen pintaliima-aineella, joka käsittää epäorgaanista täyteainetta ja polyvinyylialkoholia, on entuudestaan tunnettua. Polyvinyylialkoholi on hyvä kalvonmuodostaja, 10 jonka takia sen käyttö pintaliima-aineissa on yleistä. Pintaliima-ainei-den ominaisuuksissa on kuitenkin puutteita, joita joudutaan kompensoimaan mm. voimakkailla kalanterointikäsittelyillä, jotta pohjapaperin pinta olisi silikonointiin tullessaan mahdollisimman huokoseton. Pinta-liima-aineiden tulee myös olla silikonin kanssa yhteensopivia siten, että 15 silikoni pystyy kiinnittymään ja verkkoutumaan pintaliima-aineen päälle.Surface sizing of glasslin type base paper with a surface sizing agent comprising an inorganic filler and polyvinyl alcohol is known in the art. Polyvinyl alcohol is a good film former, which makes it widely used in surface adhesives. However, there are drawbacks to the properties of the surface adhesives, which have to be compensated e.g. vigorous calendering treatments to keep the surface of the base paper as porous as possible when entering silicone. The surface adhesives must also be compatible with the silicone so that the silicone can adhere and crosslink the surface adhesive.
Keksinnön mukaiselle paperille on tunnusomaista, että pintaliimakerros käsittää akryylihapon alkeenikopolymeeriä ja/tai sen johdannaisia ja pintaliimatun paperin Cobb-arvo on korkeintaan 17 g/m2.The paper according to the invention is characterized in that the surface sizing layer comprises an alkylene copolymer of acrylic acid and / or its derivatives and the surface sizing paper has a Cobb value of up to 17 g / m 2.
2020
Kun keksinnön mukaisen paperin pintaliimakerros käsittää akryylihapon alkeenikopolymeeriä ja/tai sen johdannaisia, pintaliimatun paperin pintaenergia voidaan säätää sellaisella tasolle, että silikonoitavuus paranee. Silikonoitavuuden paraneminen tarkoittaa mm. alempaa siliko-25 nin kulutusta, parempia tuloksia Shirlastain-väritesteissä ja silikonoidun paperin alhaisempia release-arvoja. Akryylihapon alkeenikopolymeerin lisäys pintaliima-aineeseen tekee pintaliimatun paperin pinnan hydro-fobisemmaksi, jolloin paperin pintaa ei välttämättä tarvitse käsitellä kalanterointikäsittelyillä täysin huokosettomaksi.When the surface adhesive layer of the paper according to the invention comprises an alkylene copolymer of acrylic acid and / or its derivatives, the surface energy of the surface adhesive paper can be adjusted to such an extent that the silicone is improved. Improvement in silicone resistance means e.g. lower silicone-25 consumption, better Shirlastain color results, and lower siliconized paper release values. The addition of an alkylene copolymer of acrylic acid to the surface sizing agent makes the surface of the surface sizing paper more hydrophobic, so that the surface of the paper does not necessarily have to be completely pore free by calendering treatments.
3030
Keksinnön mukaisen paperin pohjapaperina voidaan käyttää glassiini-tyyppistä paperia tai kraft-paperia.The paper of the invention may be used as a base paper of glass type or of kraft paper.
Glassiinipaperilla tarkoitetaan kemiallisesta massasta valmistettua pa-35 periä, jonka neliömassa on tyypillisesti 50-150 g/m2. Glassiinipaperilta vaaditaan hyvää transparenssia, se on tyypillisesti 60 g/m2:n paperilla 2 vähintään 45 näkyvällä valolla mitattuna (ISO 2469:1994). Koska glas-siinipaperia käytetään irrokepaperin pohjapaperina, hyvän silikonoita-vuuden edellytyksenä on huokoseton pinta. Huokoseton pinta voidaan saavuttaa kalanterointikäsittelyillä ja pintaliimauksella. Paperi voidaan 5 joko kalanteroida ensin ja sitten pintaliimata, tai pintaliimata ensin ja sitten kalanteroida. Edullisesti kalanterointi tehdään ensin, jolloin ka-lanteroinnissa käytetään edullisesti kalanteria, jossa on useampi kuin yksi nippi. Kalanteri voi olla moninippikalanteri tai superkalanteri. Ka-lanterissa ainakin yksi nippi on muodostettu kovapintaisen telan ja 10 pehmeän vastinpinnan välille. Paperin kosteus ennen kalanterointia on glassiinipaperiin pyrittäessä edullisesti vähintään 14 paino-%. Kuitenkin nyt käytettäessä keksinnön mukaista pintaliima-ainetta kalanterointikä-sittely ei ole yhtä kriittinen kuin ennen, koska pintaliima-aineen hydrofobisella ominaisuudella voidaan kompensoida kalanterointikäsittelyn 15 jälkeen jäänyttä huokoisuutta.By glass paper is meant a mass of pa-35 made from chemical pulp, typically having a basis weight of 50-150 g / m2. Good transparency is required for glass paper, typically 60 g / m2 paper 2 when measured with at least 45 visible light (ISO 2469: 1994). Since glazine paper is used as a base paper for release paper, a non-porous surface is a prerequisite for good silicone adhesion. The non-porous surface can be achieved by calendering treatments and surface sizing. The paper can either be calendered first and then surface glued, or surface glued first and then calendered. Preferably, the calendering is done first, whereby calendering with more than one nip is preferably used for calendering. The calender may be a multi-nip calender or a super calender. In the calender, at least one nip is formed between a hard surface roll and 10 soft counter surface. Prior to calendering, the paper preferably has a moisture content of at least 14% by weight. However, now with the surface sizing agent of the invention, the calendering treatment is not as critical as before because the hydrophobic property of the surface sizing agent can compensate for the porosity remaining after the calendering treatment.
Keksinnön mukainen pintaliima-aine käsittää ainakin epäorgaanista pigmenttiä ja sideainetta. Sideaine käsittää polyvinyylialkoholia ja ak-ryylihapon alkeenikopolymeeriä, kuten akryylihapon eteenikopolymee-20 riä, ja/tai sen johdannaisia. Akryylihapon alkeenikopolymeerilla ja/tai sen johdannaisilla tarkoitetaan sitä, että akryylihapon alkeenikopoly-meeri on sekoitettu ennen pintaliima-aineeseen sekoittamista vahvan emäksen, kuten natriumhydroksidin, vesiliuoksen kanssa ja näin akryylihapon alkeenikopolymeeristä on saatu vesiliukoinen suola. Alun perin 25 liuokseen siis lisätään akryylihapon alkeenikopolymeeriä, joka emäksen vaikutuksesta muuttuu ainakin osittain vesiliukoiseen suolamuo-toon. Akryylihapon alkeenikopolymeeriä on yleensä 15-25 paino-% liuoksesta, joka käsittää vettä, sopivaa emästä ja kyseistä akryylihapon alkeenikopolymeeriä. Liuoksen pH on 8,5-9,5, edullisesti se on yli 9.The surface adhesive of the invention comprises at least an inorganic pigment and a binder. The binder comprises polyvinyl alcohol and an alkylene copolymer of acrylic acid, such as ethylene copolymer of acrylic acid, and / or derivatives thereof. By alkene copolymer of acrylic acid and / or derivatives thereof, it is meant that the alkene copolymer of acrylic acid is mixed with an aqueous solution of a strong base such as sodium hydroxide before mixing with the surface sizing agent to obtain a water soluble salt of the acrylic acid alkene copolymer. Thus, initially an alkene copolymer of acrylic acid is added to the solution, which is at least partially converted to a water-soluble salt form by the action of the base. The alkylene copolymer of acrylic acid is generally 15-25% by weight of a solution comprising water, a suitable base and the alkylene copolymer of acrylic acid. The pH of the solution is from 8.5 to 9.5, preferably above 9.
3030
Sideaineen osuus pintaliima-aineen kuiva-aineesta on yleensä 70-90 painoprosenttia. Sideaine käsittää polyvinyylialkoholia ja akryylihapon alkeenikopolymeeriä ja/tai sen johdannaisia. Polyvinyylialkoholia voi olla 30-40 paino-% pintaliima-aineen kuiva-aineesta, akryylihapon al-35 keenikopolymeeriä voi olla 20-70 paino-%, edullisesti 20-50 paino-% pintaliima-aineen kuiva-aineesta. Lisäksi pintaliima-aine voi sisältää 3 erilaisia apuaineita, kuten paksunnosaineita. Apuaineena voidaan käyttää esimerkiksi karboksyylimetyyliselluloosaa (CMC), joka parantaa vesiretentiota. Apuaineiden osuus pintaliima-aineen kuiva-ainemäärästä on 0-2 paino-%, edullisesti korkeintaan 1 paino-%.The binder generally comprises 70-90% by weight of the dry weight of the adhesive. The binder comprises polyvinyl alcohol and an alkylene copolymer of acrylic acid and / or derivatives thereof. The polyvinyl alcohol may be present in an amount of 30-40% by weight based on the dry weight of the surface sizing agent, the al-35 copolymer of acrylic acid may be 20-70% by weight, preferably 20-50% by weight on the dry weight of the surface sizing agent. In addition, the surface adhesive may contain 3 different excipients, such as thickeners. For example, carboxylmethylcellulose (CMC) can be used as an excipient, which improves water retention. The excipients represent from 0 to 2% by weight, preferably not more than 1% by weight, of the dry matter content of the surface adhesive.
55
Epäorgaaninen aine voi olla paperin valmistuksen yhteydessä sinänsä tunnettua epäorgaanista pigmenttiä, kuten kaoliinia tai talkkia. Myös erilaisten epäorgaanisten pigmenttien seokset tulevat kyseeseen. Epäorgaanista pigmenttiä on kuiva-aineena pintaliima-aineessa 20-70 pai-10 noprosenttia, yleensä sitä on 20-30 paino-%.The inorganic material may be an inorganic pigment known per se in the manufacture of paper, such as kaolin or talc. Mixtures of various inorganic pigments are also contemplated. The inorganic pigment is present in a dry substance in a surface adhesive of 20-70% by weight, generally 20-30% by weight.
Pintaliimaus suoritetaan edullisesti filmiliimapuristimella ja tämän jälkeen pintaliima-aine kuivataan. Kun pintaliima-aine on levitetty pohja-paperin pinnalle, pintaliima-aineen neutralointi voi olla tarpeen, jotta 15 paperin pinnan pH saadaan suotuisaksi seuraavaa silikonikäsittelyä silmällä pitäen. Pintaliima-aine neutraloidaan sopivaa pH:ta alentavaa ainetta käyttäen tasolle pH 7. Tällöin akryylihapon alkeenikopolymeerin vesiliukoinen suola muuttuu uudelleen veteen liukenemattomaan muotoon ainakin osittain.The surface sizing is preferably carried out with a film adhesive press and then the surface sizing agent is dried. Once the surface sizing agent is applied to the base paper surface, the surface sizing agent may need to be neutralized to obtain a favorable surface pH of the paper for subsequent silicone treatment. The surface adhesive is neutralized to pH 7 using a suitable pH-lowering agent, whereby the water-soluble salt of the alkene copolymer of acrylic acid is at least partially converted to a water-insoluble form.
2020
Seuraavassa keksintöä selostetaan esimerkkien ja kuvan avulla. Kuva esittää graafisesti keksinnön mukaisen, esimerkin 1 mukaisella reseptillä pintaliimatun paperin ja tekniikan tason mukaisten vertailunäyttei-den poikittaissuuntaista laajenemista / veden imeytymistä. Kuvassa 25 esitetyistä tuloksista nähdään, että keksinnön mukainen paperi laajenee vähemmän kuin vertailunäytteet.The invention will now be described by way of example and illustration. The figure graphically illustrates the transverse expansion / water absorption of the surface-bonded paper and prior art reference samples of the invention according to the formula of Example 1. The results shown in Figure 25 show that the paper according to the invention expands less than the control samples.
Esimerkki 1.Example 1.
30 Glassiinityyppinen pohjapaperi pintaliimattiin käyttäen pintaliima-ainee-na sellaista koostumusta, jossa kuiva-aineesta laskettuna oli painoprosentteina 34,5 % polyvinyylialkoholia, 34,5 % akryylihapon eteeniko-polymeeriä, 30 % kaoliinia ja 1 % karboksyylimetyyliselluloosaa. Akryylihapon eteenikopolymeeri oli natriumhydroksidiliuoksessa, johon oli 35 sekoitettu 20 paino-% akryylihapon eteenikopolymeeriä. Natriumhydroksidiliuoksessa akryylihapon eteenikopolymeeri muuntuu vesiliukoi- 4 seksi natriumsuolaksi. Eteenin osuus kopolymeeristä oli 80 paino-%. Liuoksen pH on likimain 9.The glasslin-type base paper was surface glued using a composition based on 34.5% polyvinyl alcohol, 34.5% ethylene copolymer of acrylic acid, 30% kaolin and 1% carboxylmethylcellulose, based on the dry weight. The ethylene copolymer of acrylic acid was in a sodium hydroxide solution mixed with 20% by weight of an ethylene copolymer of acrylic acid. In a sodium hydroxide solution, the ethylene copolymer of acrylic acid is converted to a water-soluble sodium salt. Ethylene was 80% by weight of the copolymer. The pH of the solution is approximately 9.
Keksinnön mukaista pintaliimattua ja kuivattua paperia tutkittiin ominai-5 suuksiensa suhteen, ja tuloksia vertailtiin tekniikan tason mukaisen paperin kanssa. Tulokset ovat taulukossa 1.Surface-glued and dried paper according to the invention was examined for its properties and the results compared with prior art paper. The results are shown in Table 1.
Taulukko 1. Pintaliimatun paperin koetuloksia.Table 1. Test results for surface glued paper.
Ominaisuus Mitattu Yksikkö Keksinnön Tekniikan ta- mukainen son mukainen ____paperi__paperiFeature Measured Unit ____ paper according to the prior art of the invention
Paksuus keskiarvo pm__56,2__57,0 keskiha- " 1,2 1,3 __jonta____Thickness average pm__56.2__57.0 average- "1.2 1.3 __start____
Huokoisuus (Bekk)___s__464__158 Öljyn absorptio (Unger pinta g/m2 0,69 0,70 60 s)_____Porosity (Bekk) ___ s__464__158 Oil absorption (Unger surface area g / m2 0.69 0.70 60 s) _____
Shirlastain 60 s 50% pinta g/m2__15,9__19,0 __tausta___25,9Shirring 60 sec 50% Surface g / m2__15.9__19.0___backup__ 25.9
Cobb 60s__pinta g/m2__1_3__17,3Cobb 60s__ surface g / m2__1_3__17.3
Bekk-sileys pinta__s__3564__1266 __tausta s__265__808Bekk smoothness surface__s__3564__1266 __background s__265__808
Kiilto (Hunter 75°) pinta %__57,6__59,5 __tausta %__36,8__48,7 PPS-10 karheus pinta pm__1_j3__ei mitattu _ tausta pm 2,7 ei mitattu 10Gloss (Hunter 75 °) surface% __ 57,6__59,5 __base% __ 36,8__48.7 PPS-10 roughness surface pm__1_j3__non-measured _ background pm 2.7 not measured 10
Taulukossa esitetyt arvot on mitattu käyttäen seuraavia standardeja:The values in the table are measured using the following standards:
Paksuus SCAN-P 7:75Thickness SCAN-P 7:75
Bekk-huokoisuus ISO 5627 15 Öljynabsorptio (Unger) SCAN-P 37:77Bekk Porosity ISO 5627 15 Oil Absorption (Unger) SCAN-P 37:77
Shirlastain kuten Cobb, muttaShirlastain like Cobb, but
Shirlastain-nesteelläShirZastain liquid
Cobb ISO 535Cobb ISO 535
Bekk-sileys DIN 53107 20 Kiilto TAPPI T480 OS-78 5Bekk smoothness DIN 53107 20 Gloss TAPPI T480 OS-78 5
Karheus (PPS) SCAN-P 76:95Karheus (PPS) SCAN-P 76:95
Tuloksista nähdään, että Cobb-arvo, joka indikoi paperin hydrofobi-suutta, on selkeästi alempi keksinnön mukaisella paperilla kuin teknii-5 kan tason mukaisella paperilla. Cobb-arvoista voidaan todeta, että lukemat yli 17 g/m2 ovat nykyisin tavanomaisia ja lukemat, jotka ovat korkeintaan 17 g/m2, ovat hyviä. Keksinnön mukaisen paperin Cobb-arvo on tyypillisesti korkeintaan 17 g/m2, edullisesti korkeintaan 16 g/m2 ja edullisimmin korkeintaan 15 g/m2.The results show that the Cobb value, which indicates the hydrophobicity of the paper, is clearly lower on the paper of the invention than on the paper of the prior art. From the Cobb values, readings above 17 g / m2 are now standard and readings up to 17 g / m2 are good. The paper of the invention typically has a Cobb value of up to 17 g / m 2, preferably up to 16 g / m 2, and most preferably up to 15 g / m 2.
1010
Tuloksista nähdään edelleen, että Shirlastain-arvo pintaliimatulle puolelle on alempi kuin 18 g/m2. Kun Shirlastain-arvo on korkeintaan 18 g/m2, lukemaa pidetään hyvänä.The results further show that the Shirlastain value for the surface glued side is less than 18 g / m2. With a Shirlastain value of 18 g / m2 or less, the reading is considered good.
15 Edellä selostettu ei ole keksintöä rajoittavaa, vaan se voi vaihdella patenttivaatimusten puitteissa.The foregoing is not limiting of the invention, but may vary within the scope of the claims.
Claims (4)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20030905A FI121187B (en) | 2003-06-17 | 2003-06-17 | Release paper base paper |
| PCT/FI2004/000329 WO2004111336A1 (en) | 2003-06-17 | 2004-05-31 | Surface sized paper |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20030905A FI121187B (en) | 2003-06-17 | 2003-06-17 | Release paper base paper |
| FI20030905 | 2003-06-17 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI20030905A0 FI20030905A0 (en) | 2003-06-17 |
| FI20030905A FI20030905A (en) | 2004-12-18 |
| FI121187B true FI121187B (en) | 2010-08-13 |
Family
ID=8566264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI20030905A FI121187B (en) | 2003-06-17 | 2003-06-17 | Release paper base paper |
Country Status (2)
| Country | Link |
|---|---|
| FI (1) | FI121187B (en) |
| WO (1) | WO2004111336A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004019734A1 (en) | 2004-03-31 | 2005-11-03 | Dresden Papier Gmbh | Papers with high penetration resistance to fats and oils and process for their preparation |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3674896A (en) * | 1966-07-28 | 1972-07-04 | Union Carbide Corp | Bonding with ammonium polymer salts |
| DE4425737C2 (en) * | 1994-07-21 | 1998-01-08 | Kaemmerer Gmbh | Release paper with primer coats containing silicate and release paper made with it |
| BE1013060A3 (en) * | 1999-07-12 | 2001-08-07 | Mactac Europ S A | Treatment of cellulosic materials. |
| SE516918C2 (en) * | 1999-09-07 | 2002-03-19 | Tetra Laval Holdings & Finance | Process for making a laminated packaging material, packaging material made according to this process, and packaging made from this packaging material |
| FI116087B (en) * | 2000-01-26 | 2005-09-15 | Upm Kymmene Corp | Base paper, process for its manufacture and release paper |
| DE60229595D1 (en) * | 2001-07-23 | 2008-12-11 | Ricoh Kk | Composite film, process for its production, and heat-sensitive self-adhesive label film |
-
2003
- 2003-06-17 FI FI20030905A patent/FI121187B/en active IP Right Grant
-
2004
- 2004-05-31 WO PCT/FI2004/000329 patent/WO2004111336A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| FI20030905A0 (en) | 2003-06-17 |
| WO2004111336A1 (en) | 2004-12-23 |
| FI20030905A (en) | 2004-12-18 |
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