GB2335381A - Ink jet receiving sheet for oil based inks - Google Patents
Ink jet receiving sheet for oil based inks Download PDFInfo
- Publication number
- GB2335381A GB2335381A GB9805522A GB9805522A GB2335381A GB 2335381 A GB2335381 A GB 2335381A GB 9805522 A GB9805522 A GB 9805522A GB 9805522 A GB9805522 A GB 9805522A GB 2335381 A GB2335381 A GB 2335381A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polymer
- ink
- receiving sheet
- jet receiving
- component
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H19/22—Polyalkenes, e.g. polystyrene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
- B41M5/52—Macromolecular coatings
- B41M5/5254—Macromolecular coatings characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
- B41M5/52—Macromolecular coatings
-
- 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
- D21H23/30—Pretreatment of the paper
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Ink Jet Recording Methods And Recording Media Thereof (AREA)
Abstract
An ink jet receiving sheet for oil based inks comprises a coating on at least one surface of paper based sheet of a layer of from 5 to 50 microns thick of a diblock or triblock or multiblock/multiarm polymer which comprises at least one high Tg component and at least one low Tg component. A suitable high Tg component is styrene, and a suitable low Tg component is isoprene or butadiene. The receiving layers give good quality images when ink jet printed using a pigmented oil based ink and leave the surface dry to the touch.
Description
1 2335381 rNKJET RECEIVING SHEET OF OIL-BASED INKS The object of the
present invention is to provide an ink-jet receiving sheet which has similar properties to those attributed to photographic prints and is intended for use with ink jet printers which make use of oil based inks. Unlike the more conventional aqueous inks used in these printers the oil confers specific advantages but suffers from some disadvantages. A considerable advantage is the lack of cockle - or similar surface deformation - arising from printing on paper based receivers since the oil has little effect on the constituent cellulosic fibres within the paper sheet. In addition any surface coating which is applied to the raw base paper does not require to have any hygroscopic attributes. It is, therefore, helpful to use coatings which are not hygroscopic thereby removing any curl problems which may arise from use in extreme environments and which can easily produce transport problems in printers.
One disadvantage of using oil-based inks is that after applying the ink from an inkjet printer the sheet is very difficult to dry and remains sticky for a long period.
According to the present invention there is provided an inkjet receiving sheet for oil based inks which comprises a coating on at least one surface of paper based sheet a layer of from 5 to 50 microns thick of a polymer which is a diblock or triblock or multiblock/multiarm polymer which comprises at least one high Tg component and at least one low Tg component.
2 The ratio of high Tg component to low Tg component can vary greatly depending on the properties required of the layer, for example from 10% high Tg to 80% high Tg, by weight.
The molecular weight of the polymer may be from 5,000 to 1,000,000.
A useful series of polymers for the present invention are the Kraton polymers marketed by Shell Chemicals and as described in the Shell Catalogue TPE 5.2.1 issued in July 1995.
A particular useful polymer comprises styrene as the high Tg component and isopropene as the low Tg component and present as a diblock polymer. The polymer is hereinafter referred to as SIS polymer.
By high Tg component is meant a polymer having a Tg above 20'C, for example styrene.
By low Tg component is meant a polymer having a Tg less than minus 1 O'C, for example isopropene or butadiene.
The receiving layer of the present invention may have a coating of the specified polymer on both sides, in which case it can be ink-jet printed on both sides. However the back side, ie the side not to be printed may have a thin polyethylene or polypropylene layer extrusion coated onto it. Or the back side may have no coating on it.
3 A useful paper based material from which to make the receiving layer is a white bleached Kraft paper made from so-called wood free paper. That is to say paper from which lignin and bark has been removed.
Another useful base is the just described paper having a thin polyethylene or polypropylene coating.
In order to improve the adhesion between the polymer coating and the paper base preferably the paper base is corona discharge treated just before the coating is applied to it.
The polymer layer on the receiving sheet of the present invention may be solvent coated. For example a 20% solid polymer solution in a solvent such as Xylene or toluene may be bar coated on the sheet which preferably has been corona discharge treated.
Preferably however the heated solid polymer is extrusion coated on the sheet after corona discharge treatment.
The polymer layer on the receiving sheet of the present invention may contain an antioxidant and/or a UV light stabiliser as listed in the Shell Catalogue TPE 5.2. 1.
In order to improve optical density of the receiving layer a pigment such as titanium dioxide may be present mixed with the solid polymer before coating. In order to improve the whiteness of the receiving layer an optical brightening agent may be present in the coating.
4 Examples of pigmented oi 1-based ink jet inks are given in WO 96/24642 and WO 96112772.
The receiving layers of the present invention when inkjet printed using a pigmented oil based ink absorbs the oil into the polymer layer and some of the oil passes down into the paper base leaving the pigment firmly held on the surface and the surface dry to the touch.
The following examples will serve to illustrate the invention.
In both examples the polymer used was SIS.
The ink was applied by a Piezo-electrical Ink Jet printer using Zeneca Pro-jet ink set, comprising a cyan pigment.
Example 1 Solvent Coating There was coated on to a sample of bleached white Kraft paper which had been corona discharge treated sufficient of the polymer SIS dissolved in toluene, this was coated by a bar coater such that a dry coating weight 25gsrn was obtained. This gave a coating thickness of 25 microns. This sample was printed with the ink jet printer set forth above. A dry brightly coloured image was obtained.
Example 2. Extrusion Coating A web of white Kraft paper of 150gsm weight was corona discharge treated on one side and passed on this side beneath the die of an extrusion coating machine and a coating of SIS heated to 240T was laid down on the paper base at a coating weight of 24gsm.
This sample was printed with the ink and by use of the printer set forth above, a dry brightly coloured image was obtained.
The use of either a gloss chill roller or a textured chill roller attached to the extrusion coating apparatus determines the surface finish of the receiving layer.
The efficiency of the oil absorption of different coating may be determined by use of the Bristow Wheel test.
6
Claims (1)
- Claims.1.An ink-jet receiving sheet for oil based inks which comprises a coating on at least one surface of paper based sheet a layer of from 5 to 50 microns thick of a polymer which is a diblock or triblock or multiblock/multiarm polymer which comprises at least one high Tg component and at least one low Tg component.2. An ink-jet receiving sheet according to claim 1 wherein the high Tg component is Styrene.3. An ink-jet receiving sheet according to claim 1 wherein the low Tg component is isoprene or butadiene.4.An ink-jet receiving sheet according to claim 1 wherein the polymer is a diblock polymer comprising styrene and isoprene.An ink-jet receiving sheet wherein the paper base is a bleached white Kraft paper.An ink-jet receiving sheet which comprises a layer of the polymer on both sides of the sheet.An ink-jet receiving sheet according to claim 1 wherein the printing surface of the sheet is coated with the polymer and the back side of the polymer is resin coated with either polyethylene or polypropylene.7 8. An ink-jet receiving sheet according to claim 1 wherein the printing surface has been corona discharge treated before it is coated with the polymer.9. An ink-jet receiving sheet according to claim 1 wherein the polymer has been solvent coated on to the printing surface.10.An ink-jet receiving sheet according to claim 1 wherein the polymer has been extrusion coated on to the printing surface.a.Amendments to the claims have been filed as follows An ink-jet receiving sheet for oil based inks which comprises a coating on at least one surface of paper based sheet a layer of from 5 to 50 microns thick of a polymer which is a diblock or triblock or multiblock/multiarm polymer which comprises at least one high Tg component and at least one low Tg component wherein the polymer has been extrusion coated on to the printing surface.An ink-jet receiving sheet according to claim 1 wherein the high Tg component is styrene.An ink-jet receiving sheet according to claim 1 wherein the low Tg component is isoprene or butadiene.4 An ink-jet receiving sheet according to claim 1 wherein the polymer is a diblock polymer comprising styrene and isoprene.5. An ink-jet receiving sheet wherein the paper base is a bleached white Kraft paper.6. An ink--jet receiving sheet which compdses a layer of the polymer on both sides of the sheet.g 7 An ink-jet receiving sheet according to claim 1 wherein the printing surface of the sheet is coated with the polymer and the back side of the polymer is resin coated with either polyethylene or polypropylene.8. An ink-jet receiving sheet according to claim 1 wherein the printing surface has been corona discharge treated before it is coated with the polymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9805522A GB2335381B (en) | 1998-03-17 | 1998-03-17 | Ink-jet receiving sheet for oil based inks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9805522A GB2335381B (en) | 1998-03-17 | 1998-03-17 | Ink-jet receiving sheet for oil based inks |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9805522D0 GB9805522D0 (en) | 1998-05-13 |
| GB2335381A true GB2335381A (en) | 1999-09-22 |
| GB2335381B GB2335381B (en) | 2001-12-12 |
Family
ID=10828603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9805522A Expired - Fee Related GB2335381B (en) | 1998-03-17 | 1998-03-17 | Ink-jet receiving sheet for oil based inks |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2335381B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1343992A (en) * | 1970-09-10 | 1974-01-16 | Fuji Photo Film Co Ltd | Photographic supports |
| US4241143A (en) * | 1978-03-17 | 1980-12-23 | Mitsubishi Paper Mills, Ltd. | Process for producing highly glossy coated paper |
| US4265969A (en) * | 1978-05-19 | 1981-05-05 | Mitsubishi Paper Mills, Ltd. | Method for manufacturing cast-coated paper |
| JPS57105388A (en) * | 1980-12-24 | 1982-06-30 | Mitsubishi Paper Mills Ltd | Manufacture of recording paper |
| US4370389A (en) * | 1980-04-16 | 1983-01-25 | Mitsubishi Paper Mills, Ltd. | Coated paper of improved printability |
| GB2116880A (en) * | 1982-02-03 | 1983-10-05 | Canon Kk | Material used to bear writing or printing |
| GB2157194A (en) * | 1984-02-27 | 1985-10-23 | Fuji Photo Film Co Ltd | White-coated support for photographic paper |
| US4701367A (en) * | 1986-02-27 | 1987-10-20 | Xerox Corporation | Coatings for typewriter transparencies |
| US4713280A (en) * | 1986-07-29 | 1987-12-15 | Minnesota Mining And Manufacturing Company | Receptor sheet for impact printers |
| JPS63186235A (en) * | 1987-01-29 | 1988-08-01 | Oji Paper Co Ltd | Support for photographic printing paper |
| EP0582466A1 (en) * | 1992-08-07 | 1994-02-09 | Nippon Paper Industries Co., Ltd. | An inkjet recording paper and a manufacturing process thereof |
-
1998
- 1998-03-17 GB GB9805522A patent/GB2335381B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1343992A (en) * | 1970-09-10 | 1974-01-16 | Fuji Photo Film Co Ltd | Photographic supports |
| US4241143A (en) * | 1978-03-17 | 1980-12-23 | Mitsubishi Paper Mills, Ltd. | Process for producing highly glossy coated paper |
| US4265969A (en) * | 1978-05-19 | 1981-05-05 | Mitsubishi Paper Mills, Ltd. | Method for manufacturing cast-coated paper |
| US4370389A (en) * | 1980-04-16 | 1983-01-25 | Mitsubishi Paper Mills, Ltd. | Coated paper of improved printability |
| JPS57105388A (en) * | 1980-12-24 | 1982-06-30 | Mitsubishi Paper Mills Ltd | Manufacture of recording paper |
| GB2116880A (en) * | 1982-02-03 | 1983-10-05 | Canon Kk | Material used to bear writing or printing |
| GB2157194A (en) * | 1984-02-27 | 1985-10-23 | Fuji Photo Film Co Ltd | White-coated support for photographic paper |
| US4701367A (en) * | 1986-02-27 | 1987-10-20 | Xerox Corporation | Coatings for typewriter transparencies |
| US4713280A (en) * | 1986-07-29 | 1987-12-15 | Minnesota Mining And Manufacturing Company | Receptor sheet for impact printers |
| JPS63186235A (en) * | 1987-01-29 | 1988-08-01 | Oji Paper Co Ltd | Support for photographic printing paper |
| EP0582466A1 (en) * | 1992-08-07 | 1994-02-09 | Nippon Paper Industries Co., Ltd. | An inkjet recording paper and a manufacturing process thereof |
Non-Patent Citations (2)
| Title |
|---|
| WPI Abstract Accession No 82-66588E[32] & JP 57105388 A * |
| WPI Abstract Accession No 88-254539[36] & JP 63186235 A * |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9805522D0 (en) | 1998-05-13 |
| GB2335381B (en) | 2001-12-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
| 732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20090317 |