IE35580L - Pressure-sensitive recording paper. - Google Patents
Pressure-sensitive recording paper.Info
- Publication number
- IE35580L IE35580L IE23071A IE23071A IE35580L IE 35580 L IE35580 L IE 35580L IE 23071 A IE23071 A IE 23071A IE 23071 A IE23071 A IE 23071A IE 35580 L IE35580 L IE 35580L
- Authority
- IE
- Ireland
- Prior art keywords
- solution
- forming
- solvent
- wall
- compounds
- Prior art date
Links
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
- B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
- B41M5/165—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components characterised by the use of microcapsules; Special solvents for incorporating the ingredients
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
- B01J13/06—Making microcapsules or microballoons by phase separation
- B01J13/12—Making microcapsules or microballoons by phase separation removing solvent from the wall-forming material solution
- B01J13/125—Making microcapsules or microballoons by phase separation removing solvent from the wall-forming material solution by evaporation of the solvent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
- B01J13/06—Making microcapsules or microballoons by phase separation
- B01J13/14—Polymerisation; cross-linking
- B01J13/16—Interfacial polymerisation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Color Printing (AREA)
- Manufacturing Of Micro-Capsules (AREA)
Abstract
1292939 Microcapsules FUJI PHOTO FILM CO Ltd 19 April 1971 [27 Feb 1970] 22762/71 Heading C3R [Also in Divisions B8 and D2] Microcapsules for use in pressure-sensitive recording paper are prepared by dissolving a single wall-forming material capable of forming, or two or more wall-forming materials capable of reacting to form, a polymeric compound which is insoluble in both oil and water, in an oily liquid (defined) containing a colour-former and a first carrier solvent (defined) to prepare a solution, emulsifying the solution in a second solvent, which is a polar solvent, forming a continuous phase and miscible with the first solvent elevating the temperature of the emulsified system to transfer the wall-forming material or materials to the surface of the oil drops and to cause the wall-forming material or materials to form the polymeric compound on the surfaces of the oil drops, thereby producing the microcapsules containing the colour-former. Suitably, a catalyst to promote the wall-forming reaction is incorporated in the solution. It is preferred to use as the wall-forming materials a polyisocyanate or polyisothiocyanates and a polyamine, polycarboxylic acid, acid anhydride epoxy compound, polyol, polysulphide, lactone or lactam. Numerous solvents are listed for forming the solution. Water is the preferred second solvent. Protective colloids or surfaceactive agents may be used to emulsify the oily liquid. Examples of colour formers are triphenylmethane compounds, diphenylmethane compounds, xanthene compounds, thiazine compounds and spiropyran compounds. The oily liquid is any liquid capable of being emulsified to formliquid drops in and immiscible with the second polar solvent, with the use of a surface-active agent or protective colloid, if necessary, andis suitably a chlorinated diphenyl, chlorinated paraffin, cotton seed oil, peanut oil, silicone oils, tricresyl phosphate, monochlorobenzene, kerosene, n-paraffins or iso-paraffins. In a typical example, crystal violet lactone is dissolved in a mixture of chlorinated diphenyl and kerosene and to the solution is added bisphenol A dissolved in a mixed solvent of acetone/ methylene chloride, xylylene diisocyanate and dibutyl tin laurate as catalyst. The resulting solution is poured into an aqueous solution of gum arabic with stirring to form an emulsion, followed by the addition of more water and heating to bring about the encapsulation. After cooling a styrene-butadiene latex, sodium alginate and cellulose powder is added as a binder to complete the preparation of a micro-capsule solution which may be applied to a support paper for use as a pressure-sensitive recording paper (see Divisions D1-D2).
[GB1292939A]
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP45016928A JPS4926848B1 (en) | 1970-02-27 | 1970-02-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
IE35580L true IE35580L (en) | 1971-08-27 |
IE35580B1 IE35580B1 (en) | 1976-03-31 |
Family
ID=11929777
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IE23071A IE35580B1 (en) | 1970-02-27 | 1971-02-24 | Pressure sensitive recording paper |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS4926848B1 (en) |
BE (1) | BE763511A (en) |
CA (1) | CA944629A (en) |
DE (1) | DE2109335C2 (en) |
ES (1) | ES388655A1 (en) |
FR (1) | FR2083121A5 (en) |
GB (1) | GB1292939A (en) |
IE (1) | IE35580B1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2226283A1 (en) * | 1973-04-23 | 1974-11-15 | Champion Paper Co Ltd | |
US4171981A (en) * | 1977-04-29 | 1979-10-23 | The Mead Corporation | Process for the production of hot melt coating compositions containing microcapsules |
JPS6026039B2 (en) * | 1977-09-05 | 1985-06-21 | 三菱製紙株式会社 | Self-coloring pressure-sensitive recording paper |
DE3442268C1 (en) * | 1984-03-09 | 1990-08-02 | Papierfabrik August Koehler AG, 7602 Oberkirch | Process for encapsulating dissolved reactants of color reaction systems, the capsules that are then available and their use in color reaction papers |
JP2534691B2 (en) * | 1986-12-26 | 1996-09-18 | トツパン・ム−ア株式会社 | Method for producing high-density microcapsules |
JPH0641227B2 (en) * | 1987-07-15 | 1994-06-01 | 富士写真フイルム株式会社 | Recording material |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5022507B1 (en) * | 1969-09-02 | 1975-07-31 |
-
1970
- 1970-02-27 JP JP45016928A patent/JPS4926848B1/ja active Pending
-
1971
- 1971-02-24 IE IE23071A patent/IE35580B1/en unknown
- 1971-02-26 DE DE19712109335 patent/DE2109335C2/en not_active Expired
- 1971-02-26 CA CA106,350A patent/CA944629A/en not_active Expired
- 1971-02-26 ES ES388655A patent/ES388655A1/en not_active Expired
- 1971-02-26 BE BE763511A patent/BE763511A/en not_active IP Right Cessation
- 1971-03-01 FR FR7106965A patent/FR2083121A5/fr not_active Expired
- 1971-04-19 GB GB2276271A patent/GB1292939A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2109335A1 (en) | 1971-09-30 |
FR2083121A5 (en) | 1971-12-10 |
JPS4926848B1 (en) | 1974-07-12 |
GB1292939A (en) | 1972-10-18 |
ES388655A1 (en) | 1974-08-01 |
IE35580B1 (en) | 1976-03-31 |
DE2109335C2 (en) | 1986-08-28 |
BE763511A (en) | 1971-07-16 |
CA944629A (en) | 1974-04-02 |
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