EP0037370A2 - Matériau d'enregistrement au charbon sans support - Google Patents
Matériau d'enregistrement au charbon sans support Download PDFInfo
- Publication number
- EP0037370A2 EP0037370A2 EP81730040A EP81730040A EP0037370A2 EP 0037370 A2 EP0037370 A2 EP 0037370A2 EP 81730040 A EP81730040 A EP 81730040A EP 81730040 A EP81730040 A EP 81730040A EP 0037370 A2 EP0037370 A2 EP 0037370A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- top layer
- solution
- color
- synthetic resin
- 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
- 239000000463 material Substances 0.000 title claims abstract description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title 1
- 229910052799 carbon Inorganic materials 0.000 title 1
- 239000003575 carbonaceous material Substances 0.000 claims abstract description 18
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 12
- 239000000057 synthetic resin Substances 0.000 claims abstract description 12
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 11
- 239000011230 binding agent Substances 0.000 claims abstract description 7
- 239000004014 plasticizer Substances 0.000 claims abstract description 6
- 150000002148 esters Chemical class 0.000 claims 1
- 238000009472 formulation Methods 0.000 abstract description 9
- 239000000203 mixture Substances 0.000 abstract description 9
- 150000003021 phthalic acid derivatives Chemical class 0.000 abstract description 3
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 239000003973 paint Substances 0.000 description 5
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229920001756 Polyvinyl chloride acetate Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- CMCJNODIWQEOAI-UHFFFAOYSA-N bis(2-butoxyethyl)phthalate Chemical compound CCCCOCCOC(=O)C1=CC=CC=C1C(=O)OCCOCCCC CMCJNODIWQEOAI-UHFFFAOYSA-N 0.000 description 1
- 239000012050 conventional carrier Substances 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B41M5/10—Duplicating or marking methods; Sheet materials for use therein by using carbon paper or the like
Definitions
- the invention relates to a carrier-free carbon material with a color layer in which the color components are dispersed in a binder layer consisting of synthetic resin, and with a synthetic resin cover layer covering the color layer on the back.
- Such carbon materials are used in writing and printing units for writing, e.g. B. as typewriters in typewriters or as so-called printing blankets (these are broadband tapes) in high-speed printers. Due to the structure of the color layer, they can be overwritten several times.
- the invention is intended to improve a strapless carbon material with a rear cover layer applied in solution in such a way that it possesses both good conformability and good strength and can be used universally in all writing and printing units.
- the cover layer consists of a solvent-soluble, non-reactive polyurethane resin.
- the invention is based on the recognition that the selection of material for the top layer a key K Rite criterion for the usefulness of the strapless carbon material represents. What is surprising is with a solvent-soluble, non-reactive polyurethane resin that is applied in solution and then physically dried, a material has been found which combines good conformability (due to good values for the tensile elongation and elasticity) with good strength. In addition, there is also an excellent bond with another synthetic resin binder, e.g. B. polyvinyl chloride, polyvinyl acetate or polyamide-containing color layer, which is by no means a matter of course for different materials for the top layer and the color layer.
- another synthetic resin binder e.g. B. polyvinyl chloride, polyvinyl acetate or polyamide-containing color layer, which is by no means a matter of course for different materials for the top layer and the color layer.
- Solvent-soluble, non-reactive polyurethane resins which are commercially available in various types, represent a special group of substances. They are fully reacted, but have a predominantly linear structure compared to a conventional fully reacted polyurethane resin, which is three-dimensionally crosslinked and insoluble in solvents on, possibly with branched side chains, and usually also have a lower molecular weight. They can be derived from aromatic or aliphatic hydrocarbons. All types of this particular group of substances are suitable for the purposes of the invention.
- NCO isocyanurate Triisocyanurates with free NCO groups
- NCO isocyanurate polyisocyanates which are derived from isocyanuric acid by replacing its three H atoms with hydrocarbon radicals which in turn carry free NCO groups. They react with reactive OH groups to form a high-strength polyurethane resin that is three-dimensionally cross-linked and, in its pure state, is also very brittle.
- this NCO isocyanurate is added to the solution containing the solvent-soluble, non-reactive polyurethane resin. It can no longer react with the polyurethane resin (since it no longer contains NCO-reactive OH groups), but it reacts e.g. B. with water from the air or the solvent to form a three-dimensional polyurethane network which penetrates the layer of the solvent-soluble, non-reactive polyurethane resin and thus additionally solidifies, without an increase in the layer thickness being necessary.
- plasticizers the preferred plasticizers being substances from the group of phthalic acid esters. It has surprisingly been found that such a plasticizer-added y-penschmiegsamkeit affects the elasticity in the sense of a better low T, without a negative effect on the train resilience or to affect the color layer in terms of its intensity, productivity or aging stability. As a result, it is possible, with the layer thickness of the cover layer remaining the same, to adjust its conformability and its strength largely independently of one another.
- a material was used which was composed of an 18 ⁇ m thick paint layer and a 15 ⁇ m thick cover layer.
- the top layer solution was first applied to an auxiliary backing (film or adhesive paper) and physically dried.
- the color layer solution was then applied to the completely dry top layer and also physically dried. Preferential; The same solvent was used for the top layer and the color layer.
- the carbon material could be pulled off the auxiliary carrier and cut to the desired width. It was' irrelevant whether the material was pulled off and cut in one work step or whether a jumbo roll was initially wound between the material being pulled off and cut, both ways were equally feasible in terms of the strength of the tape. In no case (in contrast to the material according to DE-PS 12 13 438 discussed at the outset) was it necessary to cut the material on the auxiliary carrier so that the auxiliary carrier could be reused.
- the formulation of the color layer was the same in all examples, as follows:
- the binder solution was a 25% solution of polyvinyl chloride acetate copolymer in methyl ethyl ketone.
- the PUR resin in this and in all the following examples was a soluble non-reactive aromatic linear polyurethane from Bayer AG, Leverkusen, with Han Designation "Desmolac 2100".
- a writing tape made with this basic formulation of the top layer and suitable for many areas of use had the following properties:
- the stretching force is equal to the force that is absorbed by the tape without changing its shape, and thus a measure of the strength, while the elongation at break is a measure of the elasticity of the tape.
- the NCO isocyanate used in all of the following examples was the product supplied by Bayer AG, Leverkusen, under the name "Haftvermittler 2005”.
- a writing tape produced with such a modified cover layer had the following properties:
- the stretching force has increased compared to the basic formulation, but the elongation at break has decreased somewhat, but without assuming undesirably low values.
- a writing tape made with this slightly more modified recipe had the following properties:
- the stretching force has increased even further as a result of the greater modification compared to Example 2, but at the same time the elongation at break has dropped to relatively low values which are undesirably low for some areas of use.
- Palatinol 0 is a plasticizer from the group of phthalic acid esters.
- a writing tape made with this softened top layer had the following properties:
Landscapes
- Laminated Bodies (AREA)
- Carbon And Carbon Compounds (AREA)
- Color Printing (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT81730040T ATE22042T1 (de) | 1980-03-21 | 1981-03-21 | Traegerloses carbonmaterial. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3010859 | 1980-03-21 | ||
| DE19803010859 DE3010859A1 (de) | 1980-03-21 | 1980-03-21 | Traegerloses carbonmaterial |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0037370A2 true EP0037370A2 (fr) | 1981-10-07 |
| EP0037370A3 EP0037370A3 (en) | 1982-01-13 |
| EP0037370B1 EP0037370B1 (fr) | 1986-09-10 |
Family
ID=6097874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP81730040A Expired EP0037370B1 (fr) | 1980-03-21 | 1981-03-21 | Matériau d'enregistrement au charbon sans support |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0037370B1 (fr) |
| AT (1) | ATE22042T1 (fr) |
| DE (2) | DE3010859A1 (fr) |
| DK (1) | DK131581A (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0342371A3 (fr) * | 1988-05-16 | 1991-01-23 | Pelikan Aktiengesellschaft | Méthode pour la fabrication d'un ruban de colorant thermofusible pour l'impression par le transfert thermique |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1070918B (de) * | 1956-03-08 | 1959-12-10 | Fa. Günther Wagner, Hannover | Kohlenpapier mit einer Kunststoffrackenschicht |
| GB1218031A (en) * | 1967-08-04 | 1971-01-06 | Columbia Ribbon & Carbon | Self-supporting transfer elements and processes for making self-supporting transfer elements |
| GB1217844A (en) * | 1967-11-25 | 1970-12-31 | Columbia Ribbon & Carbon | Improvements in or relating to pressure-sensitive transfer elements |
| FR2021920A1 (en) * | 1968-10-30 | 1970-07-24 | Kores Spa | Colour printing using polymer resins for - colour transfer surfaces |
| GB1380786A (en) * | 1972-06-23 | 1975-01-15 | Ozalid Group Holdings Ltd | Pressure-sensitive transfer elements |
-
1980
- 1980-03-21 DE DE19803010859 patent/DE3010859A1/de not_active Withdrawn
-
1981
- 1981-03-21 AT AT81730040T patent/ATE22042T1/de not_active IP Right Cessation
- 1981-03-21 DE DE8181730040T patent/DE3175286D1/de not_active Expired
- 1981-03-21 EP EP81730040A patent/EP0037370B1/fr not_active Expired
- 1981-03-23 DK DK131581A patent/DK131581A/da not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0342371A3 (fr) * | 1988-05-16 | 1991-01-23 | Pelikan Aktiengesellschaft | Méthode pour la fabrication d'un ruban de colorant thermofusible pour l'impression par le transfert thermique |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3175286D1 (en) | 1986-10-16 |
| EP0037370A3 (en) | 1982-01-13 |
| EP0037370B1 (fr) | 1986-09-10 |
| DK131581A (da) | 1981-09-22 |
| ATE22042T1 (de) | 1986-09-15 |
| DE3010859A1 (de) | 1981-10-01 |
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