WO1983000462A1 - Pressure-sensitive recording paper - Google Patents

Pressure-sensitive recording paper Download PDF

Info

Publication number
WO1983000462A1
WO1983000462A1 PCT/JP1982/000293 JP8200293W WO8300462A1 WO 1983000462 A1 WO1983000462 A1 WO 1983000462A1 JP 8200293 W JP8200293 W JP 8200293W WO 8300462 A1 WO8300462 A1 WO 8300462A1
Authority
WO
WIPO (PCT)
Prior art keywords
color
acid
activated clay
paper
parts
Prior art date
Application number
PCT/JP1982/000293
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
Ltd. Mitsubishi Paper Mills
Original Assignee
Toyama, Kohji
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
Application filed by Toyama, Kohji filed Critical Toyama, Kohji
Publication of WO1983000462A1 publication Critical patent/WO1983000462A1/ja

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
    • B41M5/132—Chemical colour-forming components; Additives or binders therefor
    • B41M5/155—Colour-developing components, e.g. acidic compounds; Additives or binders therefor; Layers containing such colour-developing components, additives or binders
    • B41M5/1555—Inorganic mineral developers, e.g. clays

Definitions

  • the present invention relates to pressure-sensitive recording paper.
  • the pressure-sensitive recording paper is an electron-donating organic coloring agent (hereinafter referred to as a crystalline pigment) such as crystal violet tractone, benzyl alcohol methylene, etc.
  • a crystalline pigment such as crystal violet tractone, benzyl alcohol methylene, etc.
  • color formers such as crystal violet tractone, benzyl alcohol methylene, etc.
  • activated clay monmorillonite-type clay minerals
  • phenolic compounds hereinafter referred to as aromatic carbons
  • An acid or its metal salt which is based on the principle of developing color by the reaction of an electron-accepting color developer (hereinafter simply referred to as a color developer).
  • Paper on one side of base paper, bottom paper on which color developer is applied on one side of base paper, ⁇ -cuff containing the color former, and cell and developer on different sides of the same base paper Combine the used middle papers as appropriate for the purpose of use, and use them in pole pens, types, writer, etc. When pressed, it is supposed to have a strong shooting power ⁇
  • micro cuff Self-contained paper in which a cell and a developer are coated on the same side of the base paper
  • the pressure-sensitive recording paper in this case, activated clay
  • This activated clay has the property of reacting well with color formers and has the characteristic of producing deeper color development o
  • the most common of color formers The acid strength of the activated clay is too strong for the crystal violent lactone used in the reaction to develop a blue-violet color with the highest concentration between the activated clay and the activated clay. Therefore, when preparing a coating solution for activated clay, an alkaline material (alkaline or alkaline earth metal oxide, hydroxide, carbonate, ammonia, amine, etc.) is added. O However, if the activated clay coating solution adjusted to the fine alkaline side is applied to the base paper, the color developing ability temporarily decreases. O This is due to acid in alkaline or alkaline earth metals.
  • the coating solution when the coating solution is applied to the base paper and dried, it recrystallizes, and furthermore, the sulfate band in the base paper Neutralizes the recrystallized alcohol due to the moisture in the base paper and the moisture in the atmosphere, which also acts on the co-activated clay, thus increasing the acid strength of the activated clay.
  • the coating layer of activated clay contains an amine-not only to neutralize the acid point of the strong acid part of the activated clay, but also to the ⁇ point of the weak acid part that simultaneously contributes to the color development reaction Is also neutralized, and the green nucleus of activated clay is significantly reduced.
  • the present inventor has proposed a crystal violette as a coloring agent.
  • the present invention has been achieved as a result of investigations to improve such drawbacks of color developing paper using activated clay, which is premised on the use of cotton.o
  • the present invention is based on acid treatment.] JA ion is completely removed, an aromatic adsorption index is set to 40 or more, and then a developing paper coated with activated clay into which the ion is introduced is applied. Mic mouth cuff containing tarvallet tractone as the main component of the color former. O This is a pressure-sensitive recording paper that is characterized by combining with a colored paper coated with cells.
  • the activated clay used in the present invention can be produced by acid-treating a montmorillonite-type clayey clay mineral, and the montmorillonite-type clay mineral has a general formula
  • the aromatic adsorption index of the activated clay must be over 40.
  • the aromatic adsorption index is an index that reflects the degree of adsorption or the degree of activity of activated clay, and is used as an index that conveniently indicates the degree of the specific surface area of activated clay.
  • the aromatic adsorption index of 40 or more means that the activated clay used as a color developer other than the present invention has an aromatic adsorption index of 20 to 40, which is very active.
  • this means that the specific surface area is very large, and there are many acid points in the weak acid part that contribute to the color development with the crystal bioreactoractone. This indicates that the effect of the acid strength given by the sulfate band in the base paper over time is 0 , which indicates that it is becoming harder.
  • the aromatic adsorption index is determined by the following method. That is, a ground sample is dried at 150 ° C and 5 ° G for 5 hours, and allowed to cool to room temperature in a desiccator. Take 1.00 ⁇ of the dried sample into a container, add 2.00 ⁇ of a mixture of 50 volumes of J9 dehydrated toluene and 70 volumes of dehydrated isooctane and disperse the sample. After shaking for 40 minutes, centrifuge the sample in a centrifuge to collect the supernatant.o Measure the refractive index of this supernatant and the original solution at 20 °, and use the following formula. ]? Calculate Aromatic Adsorption Index (AAI) o
  • the aromatic adsorption index can be increased by acid-treating the montmorillonite-type clay mineral.
  • a £ i activated clay excluding the on-the Si0 2 alone; ⁇ et a]), acid sites of the strong acid unit is in the state that exists only acid sites rather Donna On and Ho weak portion. In this state, it is difficult to develop and maintain the highest concentration of crystal violet tracen o.This is because the crystal violet track
  • the acid strength is weaker than the optimal acid strength to produce the highest concentration of color in the color tone. At the acid point, the color development reaction is sufficient, but on the other hand, it is considered to promote the decomposition of the chromophore by light such as sunlight.
  • the acid point of the acid strength can be expressed by the number of acid points having the acidity of the activated clay, that is, the acid strength of a certain strength.
  • Si0 2 or we as a source for introducing the name Ru activated clay nitric saury grayed roots U beam, magnesiate c arm chloride, peroxygen acid magnesiate ⁇ beam, Gisanma grayed, roots ⁇ beam, Ma sulfate Use magnesium, magnesium, hydroxymagnesium, etc.
  • the addition amount is S i
  • activated clay of the present invention to dry the re down yo I Do weak acid but it may also be performed brief acid treatment o then activated clay at 1 0 D ⁇ 3 5 0 ° C the acid at 0 this washing with water Te Get o
  • the activated clay into which the ion is introduced in the present invention may be a phenol resin, an aromatic ketone or a metal salt thereof, or an activated clay other than the present invention as a color developing aid. It means that it is possible to use them together] 9, and as additional pigments, kaolin, crepe, talc, calcium carbonate, zinc oxide, hydroxide Aluminum, magnesium oxide
  • Magnesium carbonate, silica, etc. can be applied in combination.
  • binders such as styrene-tadiene-based latex, acrylic-based latex, etc. India, oxidized starch, etherified starch, esterified flour, carbo, xymethylcellulose, hydroxyethyl cellulose, Water-soluble polymer binders such as methyl cellulose, polyvinyl alcohol, casein, gelatin, soy protein, and sodium alginate O
  • binders can be added in an amount of 10 to 40 parts by weight, preferably 20 to 100 parts by weight, based on 100 parts by weight of activated clay. 50 parts by weight o
  • canoleno and f-linolemethane compounds for the present invention Is N-n-zatyl 13- [bis ⁇ N-methyl (N-methyl-2-amino) fu-nore ⁇ methyl] canole
  • the amount of calpa and rilmethane compound added to 100 parts by weight is 0 to 50 parts by weight, preferably 10 to 100 parts by weight. 50 parts by weight of the three color formers are dissolved in a solvent to form a capsule at the mouth and applied to the field.
  • a solvent use natural or synthetic oil alone or in combination. O Examples of solvents include cottonseed oil, kerosene, paraffin, naphthenic oil, phenolic phenol, phenolic phenol, phenolic phenol, Application Benefits a Li Lumpur meta-down, Ru can and this include etc. chlorine Capa La full fin 0
  • Mic mouth cuff with oil in which color former is dissolved As a method for cell formation, a known micro cuff is used. Cell method can be used.
  • micro cuffs For example, micro cuffs.
  • the manufacturing methods for cells are described in U.S. Patent Nos. 2,800,457 and 2,800,458.
  • OMPI Utilizing a coacervation method, US Patent Nos. 5,418,250 and 3,004,504, and a method using polymer precipitation. Can be used o Micro cuff containing a color former. The cell is applied to the base paper with various additives, binders, antioxidants, anti-smudges and surfactants o
  • the A ion was completely removed by acid treatment, the aromatic adsorption index was increased to 40 or more, and the activated paper coated with the activated clay to which the ion was applied was applied as a developing paper and the color developing agent was changed to a crystal.
  • a color former oil obtained by dissolving 4 parts of crystal bioreactolactone in 100 parts of pill naphthalene is used in a core assembly described in U.S. Pat. No. 2,800,457.
  • 0 obtained Ma Yi-click filtration off the microphone b force-flops cell Lumpur reduction by the microphone and Russia force 7 ° cell Lumpur manufacturing method using the Le base over Shi Yo emissions.
  • Cell dispersion (micro cuff cuff; cell solid content: 10%) 20 parts of 10% oxidized coagulated powder, 20 parts of wheat flour, and 4 parts of wheat flour are added to form a coating liquid 50 base paper the dry weight 5 B m 2 coated color paper and the o
  • Table 1 shows the performance when color was developed using a combination of color developing paper and coloring paper.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Color Printing (AREA)
PCT/JP1982/000293 1981-08-01 1982-07-29 Pressure-sensitive recording paper WO1983000462A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP56/121086810801 1981-08-01
JP56121086A JPS5822198A (ja) 1981-08-01 1981-08-01 感圧記録紙

Publications (1)

Publication Number Publication Date
WO1983000462A1 true WO1983000462A1 (en) 1983-02-17

Family

ID=14802514

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1982/000293 WO1983000462A1 (en) 1981-08-01 1982-07-29 Pressure-sensitive recording paper

Country Status (2)

Country Link
JP (1) JPS5822198A (enrdf_load_stackoverflow)
WO (1) WO1983000462A1 (enrdf_load_stackoverflow)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5139566B2 (enrdf_load_stackoverflow) * 1973-01-12 1976-10-28
JPS5342910A (en) * 1976-09-30 1978-04-18 Fuji Photo Film Co Ltd Recording materials
JPS54161637A (en) * 1978-04-24 1979-12-21 Ciba Geigy Ag New carbazolyl methane compound* preparing same* use therof as pressure or heat sensitive recording material
JPS5597982A (en) * 1979-01-19 1980-07-25 Fuji Photo Film Co Ltd High solid content active clay slurry composition and production thereof
JPS55103994A (en) * 1979-02-01 1980-08-08 Mizusawa Ind Chem Ltd Color-developing agent composition for pressure-sensitive transfer paper, its preparation and impression paper for pressure-sensitive transfer
JPS5715996A (en) * 1980-07-03 1982-01-27 Mizusawa Ind Chem Ltd Novel clay mineral based color former for heat-sensitive copying paper and production thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5139566A (en) * 1974-10-01 1976-04-02 Asahi Glass Co Ltd Haigasuno shorihoho
JPS5429128A (en) * 1977-08-08 1979-03-05 Hitachi Ltd Ball valve
JPS5612515A (en) * 1979-07-13 1981-02-06 Nissan Motor Co Ltd Oscillation sensor
JPS5816885A (ja) * 1981-07-23 1983-01-31 Mizusawa Ind Chem Ltd 新規な粘土鉱物系感圧複写紙用発色剤組成物及びこれを含有する水性塗液組成物

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5139566B2 (enrdf_load_stackoverflow) * 1973-01-12 1976-10-28
JPS5342910A (en) * 1976-09-30 1978-04-18 Fuji Photo Film Co Ltd Recording materials
JPS54161637A (en) * 1978-04-24 1979-12-21 Ciba Geigy Ag New carbazolyl methane compound* preparing same* use therof as pressure or heat sensitive recording material
JPS5597982A (en) * 1979-01-19 1980-07-25 Fuji Photo Film Co Ltd High solid content active clay slurry composition and production thereof
JPS55103994A (en) * 1979-02-01 1980-08-08 Mizusawa Ind Chem Ltd Color-developing agent composition for pressure-sensitive transfer paper, its preparation and impression paper for pressure-sensitive transfer
JPS5715996A (en) * 1980-07-03 1982-01-27 Mizusawa Ind Chem Ltd Novel clay mineral based color former for heat-sensitive copying paper and production thereof

Also Published As

Publication number Publication date
JPS5822198A (ja) 1983-02-09
JPS645558B2 (enrdf_load_stackoverflow) 1989-01-31

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