DE1934367B2 - PROCESS FOR MANUFACTURING A COLOR SHEET FOR THE TEMPLATE PRINTING PROCESS - Google Patents

Description

Electron-absorbing solid acid is capable. to raise.

jfi dissolves in an organic solvent which ία It has now been found that a Schahlonc: -

solution a synthetic high-molecular-weight reduction or duplication effortlessly carried out i: i

dung with a melting or softening point can be obtained by the colorless Leukofarbsi.-p ·. ·

Jon 45 to 210 C to form a uniformly-containing ink sheet on or in the carrier: .., t

The solution is combined with a piece of paper with heating to a temperature which has an eir: ¹ "electron · .-.,

© Herhalh of the melting or softening point 15 absorbent substance, for example clay. over ..-.--

the synthetic high molecular compound (which material is hereinafter referred to as > ioi.

»Et and the resulting solution is marked on a coated paper"), and on the- · .-

Applies carrier. In this way, the above-mentioned errors un, i

2. The method according to claim 1. thereby marked deficiencies eliminated. The invention relates to e, ·. draws that, nan as a synthetic high molecular 20 process for the production of such a color sheet. Connection of polyethylene. Ethylene-vinyl acetate object of the invention is to create a Vc copolymer. Polypropylene .. Polyirifluorehlor- driving for the production of a color sheet for d.i-. Jithylene. Polyamide resin, chlorinated polyethylene or stencil printing process with a superior :. Ketone resin used. Ability to print or copy. Another purpose of the

3. The method according to claim 2. thereby marked- 25 invention is the creation of a method for 1 Ic -! - tciehnet. that a polyethylene with a middle position of a color sheet, the pictures with excellent Molecular weight from 600 to 8000 used. ter durability.

4. The method according to claim 1. thereby marked- The purposes according to the invention are thereby ponds. that one achieves as an organic solvent that one liner to the leuco dye solution ;: Chlorinated diphenyl. Chlorobenzene or castor oil 30 molecular compound with an enamel or Lr-X used. softening point of 45 to 20 ° C adds and the so

5. The method according to claim 1. thereby applied mixture obtained on a carrier or jeichnel. that you put the solution on a support. soak a carrier in the mixture and allow it to pass through made of an aluminum foil, imwebtem soaks.

Material. Cellophane sheet. Polyethylene sheet. Vinyl 35 In particular, the method according to the invention

Chloride - vinylidene chloride - copolymer - characterized in that one essentially

purple. Polypropylene sheet. Polystyrene sheet, synthetic colorless lcuco dye. to form a>

table! Paper based on polystyrene or a colored I,. material when it comes into contact with an electrical

heschichtcten sheet of this, applies. is capable of newly absorbing solid acid. in a,

6. The method according to any one of claims I to 5. 40 organic solvent dissolves, the solution is characterized in that there is a leuco color synthetic high molecular weight compound with an Itoff Benzoylleukoniethylenhlau. Crystal violet cut ¹ / - or softening point from 45 to 210 <laclon. Malaehgrünlaeton. Michlcrs llydrol. forming a uniform solution under Er-Klichler's kaon. Rhodaniiii - ^ '- lactam. Acid-Rho- heatii to a temperature above the melting or damiii '/ i'-sultoii. 3-Dinicthy lamino-7-methylamino- 1.5 softening point of a synthetic high molecular fluorane or .1-Diiiiethy lamino-7-diary lliuoran ν erreu compound is added and the resulting solution V.cnds. a., f applies a carrier.

7. The method according to claim I. characterized as I.eiiki.farbstoffe can generally known lei.hnet. that one, as electron-absorbing chemical compounds, is colorless or slightly solid Acid tone used. 50 are colored and colored in contact with solid acids

X. The method according to claim I. thereby marked dyes can be used, for. B.

ponds. that you get the synthetic high molecular weight Benzo ¹ , llciikomethy leiiblau. Crystal Violet Lactone. Ma-

Compound in an amount ν on 2 hi - 2 ^ weight of lachil green lacion. Michlcrs llydrol. Michlcr's ketone.

Jirozcnl. based on el ic l.euko color. begins. Rl.odamin - ^ - lactam. Acid rhtHl.imin - // '- sultou. 3-Tue-

.-, .-, met hy la m inn-7-met In la mi noil iioran. 3- Di met hy la mi no-7-diaryllluoran or the like

The solvent for dissolving the leuco color

substances is preferably a solvent that is more than 0.1 ",, of the lucofar raw materials at room temperature

Dic F rfindiing refers to a method of fi.> can dissolve and is free of malodorous smell and production of a l-'arbhlatles for the stencil has a boiling point of 1.10 C or above, printing process. In particular, the Erlin- Ls is undesirable that the boiling point of eles solution manure relates to a process for the production of l.ciiko- means at the same temperature or lower than Larb leaves containing dyes. the melting point or softening point of the synlhe-bei the usual stencil printing methodc. at- 6 ;, tables high molecular compound is. since that sometimes when duplicating (Mimeographicren). Solvent is evaporated and according to the elcm A colored printing ink will be precipitated on a stencil with organic dyes when the solution (') opens applied, while under the stencil medium for the purpose of melting or softening animal svntheli-

! 934

skins of high molecular weight \ erdung is heated. Chcrdics it is frequent the I all. Dal. ¹ if the solution fruition molecules are a / u large. ^: e polarizable wedge be-Sii / en. The leuco-phosphate substances late in staining result in no color at all, even if they are in contact with a compound capable of accepting electrons. It is therefore preferred that the solvent molecules are not polarized. The solvents useful in the invention included aromatic hydrocarbons, e.g. B. toluene, in xylene. Trimethylhen / ol. Isopropyl alcohol or Ätliylfccnzol. chlorinated hydrocarbons, e.g. B. Cl.lorfetn / ol. Trichlorobenzene or chlorinated diphenyl, and oxygen-containing solvents, e.g. B. Dihutylilher. Isohutyl ether. Bun lacetat. Amylaceint or castor oil.

The synthetic high molecular weight compound used according to the invention is one which is not dissolved by the solvent of the leuco compounds or by a mixture of the above-mentioned solvents with an auxiliary solvent in an amount of more than 8 " _{0 at} room temperature, but at a temperature above the softening or melting point in the solvent of the leuco dyes or in the solvent mixture described above to form a homogeneous solution, the softening or melting point being in the range from 45 to 210 C. If the softening or melting point of the If the compound is lower than 45 ° C., a solution is formed, and when the softening or melting point is above 21 ° C., it becomes necessary to heat this synthetic high molecular compound at a high temperature to dissolve it Risk of decomposition of the liquor oil.

Suitable synthetic high molecular weight compounds include polyethylene. Ethylene-vinyl acetate copolymer. chlorinated polyethylene. Polyp, opy len. Vinyl chloride. Polychlorotrilluorethylene. Polytetrafluoroethylene. Polyvinyl pyrrolidone. Keion resin. manufactured in cyclohexanone and formalin. Polybutadiene-1.2 (isotactic). Polystyrene, synthetic rubber, a polyamide resin made from dibasic aliphatic acid and a polyamine or the like.

Among the high molecular weight compounds listed above are polyethylene. Atliy len-Vmy I-Ii cc tat copolymer. Polypropylene. Polychlorotrilluorethylene. Polytrafluoroethylene. Ketone resin. synthetic rubber and polyamide resin are preferred. t) icse synthetic high molecular compounds do not dislocate themselves when heated and give off no acidic substance. which can enter into a reaction with the l.cuco dyes (which allowed to lorm leuc'Mlye I., Even if these synthetic high-molecular compounds are mixed with a solution of the solvent in which l.cuco dyes are dissolved, which leads to formation is heated in a homogeneous solution and then cooled, these high molecular compounds are dissolved to such an extent that no clumping is caused in the entire system. Particularly desirable synthetic high molecular compounds are those which do not change even when heated and dissolved in organic dyes and after cooling The surface of the l.cukofaibschicht opposite the air is created in the form of a film, and which, moreover, is deposited in the form of fine particles with a layer of liiii; i.oiler underneath and their melting point below UiO L ', these compounds being softened or melted. Deranige synthe Tables high molecular weight compounds include polyethylene of low molecular weight having an average molecular weight \ on 60 (1 to 80 (10th F ¹ IiKaIIiVlen - \ inylacetat - Misehpolymerisaiharz. with a \ uiylacetat content within 20 ",, and a melt index above 50. Poly trilluorchluräthy len with a pouring point of above 45 C and an average molecular weight of 1000 to 2000. Polyamide resin with an amine value of below 3 and a ketone resin with an acid value of below 1.

The embodiments of the method for producing the leuco dye are as follows:

1. Dissolving a leuco dye in a solvent, if necessary, addition of an auxiliary solvent. Mixing in a synthetic high molecular weight compound with the mixture Heat.

2. Heating a leuco dye. a synthetic high molecular compound and an organic one Solvent to a homogeneous solution and, if necessary, addition of an auxiliary solvent.

3. Dissolve a leuco dye in a solvent. Heat this solution to a temperature below or below the softening point Melting point of the synthetic high molecular compound. Furthermore, the synthetic ones are added high molecular compound obtained by heating to a much higher temperature than that Melting point has been melted. High efficiency stirring. The system forms a homogeneous solution or a system of tiny disperse particles of synthetic high molecular weight Connection in the solution.

The one described under 1 is among these working methods the simplest and most beneficial.

Thereafter, the leuco dye is applied to a support either with heating or cooling.

The desired proportion of each component, which is contained in 100 g of the dye. is below specified:

The Leukofarbstoffc are present in an amount in the range of 0.1 to 20 weight percent present, but Leukofarbstoffc _n in an amount of 0.4 ° or more in the case where the Färbevcrmögcn of the leuco dyes is low. to be favoured. In addition, it is preferred that the addition amount be 10% by weight or less.

The synthetic high molecular compound should be present in an amount above 2 percent by weight to plasticize the printing ink and increase its viscosity. To achieve good For printability, an amount below 28% is also desirable. The synthetic high molecular weight Connection can be made in part by wax. Oils and fats or a finely powdered substance, e.g. 13. Strength or powdered cellulose, these being the synthetic high molecular compound can be added. The proportion of the amount of the synthetic high molecular compound possesses an important influence on the undesirable tackiness and the printability of the sheet. For the purpose of Produces a sheet of low tack

«Nd timer I trucl.lahmkeii it is expedient and the watts are uniform di, pergias are, moved, \ uliei-

Ȇnschi. that the amount is received by the hociimolecules, the printed hiId is indicated by the s> niliciisclieu

laren connection in the area / between 6 and 2 (1 ",, high molecular compounds protected in the

lies. Other additives than Swiss polymer. Leukofaihsiofflösiing at Raumtcvipc-atiir leilwei ·, .-

Vachs or Feile are solvents for the hinge .-- 5 are dissolved, whereby the lallharkeil of the picture is raised

dyes, a lill's solvent or a solid fine will. When using natural raw materials,

powdered substance. Since in many cases the solution, e.g. wax. Oils and skins or mineral oil, ".ie

Initiel for the Leukofarhsiolfe that received in I landel earlier described, existed the (ielahr. that Jic-e

Borrowed stencil paper for typing materials in the course of the line form large crystals

adversely affected, it is expedient and desirable. u> or that coarse particles \ on wax. Oils and fats

jjlall such a solvent in as little as possible or mineral oil in the paint layer on the harhbku ¹

Klenge erwendei, so that the leuco-carhsiofl'e are visible, whereby the copier wedge deteriorates.

Hicht flow. Liquids are used as auxiliary solution. With the color blue. that the sv niheiischcn

farallinc. Petrol. Soy bean oil. Kerosene or silicone high molecular compounds enihäli and the ge

(I used. In particular, liquid paraffin is a 15 measure of the invention, but are the

tiisgezeichneics auxiliary solution medium. because it is the temperature of fine s_ \ niheiischen high molecular \ connections

ture dependence of the viscosity of the paint decreases uniformly dispersed, and there are in the course of the

and is odorless. Liquid paraffin also improves time and is no coarse particles formed at the same time

the stripping of the silk sheet from the paint layer. the stickiness of the ink sheet is considerably reduced

Zv \ ei or more ar '..: n of leuco dyes, 20 sets, moreover, the synthetic high-solvent solvents and synthetic high-molecular-weight molecular compounds foams between the compound can be used. Color sheet and the die or stencil during A finely powdered substance that is firm at room temperature of printing or copying and improving the door, paraffin. Wax. Fats and oils and a printability to a substantial extent by removing a small amount of a coloring material or pigment for the purpose of typographical interruptions or delusion of a good appearance can be added positions,
will. The invention is hereinafter referred to in hlai.d by Bei-

As a carrier for the color sheet, a sheet-shaped game is explained in more detail.

Material made from leuco dyes and auxiliary solvents. .

averages is hardly influenced, preferred, and apart from that, 30 ti e 1 s ρ 1 e I 1

0.1 g of crystal violet lactone was added to 6 g of chloro-

Much of the diphenyl is dissolved at a temperature of about 100 ° C., whereupon 1.0 g of liquid paraffin

is constantly. preferred, and examples of such and then 2.0 g polyethylene with a medium .'lole-

Materials are aluminum foil, non-woven fabric, weight 2000 and a softening point

a paper that does not contain an acidic substance, cello 35 at 107 C and 1.0 g of paraffin with a melting point

phanblatt. Polyethylene sheet, polyvinyl chloride sheet, were added from 62 to 64 C and then

Polyester sheet. Cellulose derivative sheet. Poly-Cvinylchlo- the mixture was heated at 120 C. It was

rid \ inylidcn) sheet. Polypropylene sheet. Polystyrene sheet, an apparently uniform lemon yellow and

paper-like polystyrene sheet or a layered clear solution. This solution was

Sheet of the polymer described above- 40 on the ceilophan side of a coated with cellophane-

hlail and paper, a layered sheet of alien paper with a thickness of 120 g _; m- applied,

Then a sheet of tissue paper was then placed on top of it as a layer of minium foil and paper or cloth

Sheets of cloth and paper or the like. In addition, a protective sheet can be applied, and it was made in this way

Polymerisathlatt or ei; e aluminum foil, each made a color sheet. The tissue paper was

with such porous layers as paper, non-woven. the die or stencil was on the

Cloth or a thin sponge-like sheet, laid on a layer of paint, and printing or copying

layer, are, as carrier materials for application was on the m. clay-coated paper by means of a

fclangcn. An island printing duplication machine carried out.

The amount of leuco dye that was applied to the support during printing or duplication is to be brought varies depending on the operator's 50 hands and clothes of copies that are stained when copied. The paint layer cooled to room temperature Avcrden should. For example, one can use a was colorless. It contained solid, very small dispersed c color sheet. that in a thickness of 0.1 mm mil the substances that appear to be deposited. Polymeri 2.0 g I cukofarhsioffc in K) Og of the color containing sat and paraffin passed. The cluckiness was very Ink is coated or coated. more than 5;) low. No stain was found during copying 300 pieces of copied papers can be obtained. the operator's hands.

The high molecular weight compounds found in the. · 1 ->
Color sheet according to the invention by means of a room example *.
temperature-dispersed material are contained, benzoylleucomethylene blue was dissolved from one another in an amount in which the lcuco dyes contained 0.45 g in 8.55 g of chlorinated diphenyl and the solution was uniformly separated so that the a.'f was heated to 75 ° C. Then 1.2 g of polytrifluoro glue and the touch are improved. Over-ethylene chloride (trade name Daifloil, Fließdics can be avoided by using this color sheet a temperature [mobil temperature] 50 to 65 C, produced unevenness of the copy, since Osaka Kinzoku Kogyo Kaisha, Ltd.) at 75 C, the leuco dye looks uniform in that heats up to bc-Ö5. whereupon the above-described heated printing earth paper was added and agitated in the execution of the multiple solution of benzoyl leucomethylene blue and precipitation or in the stencil printing due to the agitation until a uniform transparent synthetic high molecular compound was obtained on the solution. This solution was based on

7 8

Cooled to room temperature, with a cloudy paste manufactured by Riso Kagaku Kaisha Ltd.). became a

was formed. This paste was then coated as a blue-green copy by means of a stencil removal

onto the aluminum foil side of a sheet of paper made with an electro-rotary

Aluminum foil coated material applied. mimeograph) onto the attapulgite coated

and a polypropylene film was obtained as a protective sheet for 5 papers. ! This color sheet was colorless and

their covering is used, and in this way not very sticky. At a production speed

a color sheet was made. This color sheet was of SO sheets min. And at a temperature of

very little tacky, lemon yellow in color, and ⁽ ) to 35 ° C were obtained over 450 sheet copies.

the peeling of the protective sheet could be carried out well. .

When copying in the same way as in example 1

wrote clear blue copies were obtained. 2.0 g crystal violet lactone and 2.4 g leucomelhylene

. -ii ' ¹ ' ^{au wur} <-lcn in a solvent mixture of

Example 3 _{7 () 6 gc} i, | _(ir j _crtcm diphenyl and 13.0 g kerosene dissolved.

1.0 g of V (Hi Rhodamiiv / i'-lactam were dissolved in 7.8 g of chloro including 14.5 g of polyamide resin (trade name H! Tared diphenyl, and 1.2 g of a clone resin 15 and 502. manufactured by Hitachi Kasai Kogyo Kaisha (trade name Hilac 110, manufactured by Hitachi Ltd.) was added. Then, Kogyo Kaisha Ltd. was added to 120 C er-Kasei. Then, heated and a clear solution (crystal solution) became the mixture to 130 This transparent solution was obtained after cooling to about 40 C. After cooling the solution onto a polyester film in a thickness equal to that of this solution to room temperature, it was applied as a weight of 60 gm ^2. Parchment paper (glassine paper) Layering on a polyester film with a thickness of was applied over it as a protective sheet, and it was applied 80 gm ² , whereupon the polyester film with a colored sheet was applied in this way tt was very little, the color sheet was preserved. This sticky, and peeling off the protective sheet was easy, paint sheet was easy to handle, and peeling off 2-, auv-lihrb-.ir. The protective sheet was removed and the protective sheet worked well. After removal of the color sheet, the color layer was applied together with a protective wax sheet to the matrix or stencil on the frame of the duplication template or matrix, which was fastened by means of an electrical folding machine. Produced by copying or static remote photographic processes, printing with a clean roller were obtained (trade name of stencil paper for Gest- 30 blue clear copies. Copying or Vcrfax FS 390). applied and varied by means of the stencil could be carried out satisfactorily both at 5 ° C and at 40'C or a matrix on the Japanese acid clay,
layered paper by means of a peeling machine. R '- -1 f
prints. A clear, red printed paper e 1 s ρ 1 e 1 1
obtain. Printing or copying was satisfactory. 1.0 g of 3-diethylamino-7-meth \ 1mino was carried out at both 5 ° C and 40 ° C. fluoran dissolved in 20.0 g of chlorinated diphenyl, causing almost no staining of hands or clothes of the 50.0 g of liquid paraffin and then 13.0 g of poly-operator during copying. ethylene having an average molecular weight before being 2 (Cl sheets of copied paper 5000 were added and was heated to 120 C were. * ° was thereby obtain a clear solution danr "■ ■, this solution was cooled to about 60 C. , and the

Side of the nonwoven fabric of a sheet of cellophane

1.0 g of malachite green acetone was dissolved in 22 g of butyl acetate with a non-woven fabric of a cellulose type, for which 15.0 2 chlorinated triphine was added and layered. was added with this solution in a thick layer while heating and then 15.0 g of a 45 of about 100 g m- was soaked. An aluminum foil of liquid paraffin and 3.2 g of ethylen-vinyl acetate was applied over it as a protective sheet, and a color sheet was produced from the copolymer (trade name Evafiex 420. In this way, the protection made by Mitsui PHychemical C> \. Ltd.) pull sheet was removed and would be a White Mirya and heated at W) C. A stencil or stencil (manufactured by Mori, a solution that was too transparent was obtained. Then 5 ° Toshado Kaisha Ltd.) was applied over this hot solution to the cellophane side of a cellophane-coated paper with what was then copied onto a cellophane-coated paper using the stencil on paper coated with bemonite and magnesium oxide, with a layer of paint being applied with a thickness of. There were thereby black copies Ϊ60 σ πι- was obtained. A poly-i ν invl-v inyliden- or prints received. With this ink sheet, the chloride film was overlaid as a protective sheet, and more than 300 copies were obtained. The fern sheet was colored, thus a coloring sheet was obtained. Under going. and there was no staining of hands or clay using this ink sheet and a stencil or that of the operator. The handling was a stencil, which had been produced according to the thermographic process due to the semi-dry state of the color sheet (trade name Risofaxs. Simple.

Claims (1)

white papers are fed in, the color being th- :: patent claims: the openings of the stencil is pressed to aiii,!, - ■■ white papers color images according to Jen Ölinm.- 1. Process for the production of a color sheet to form the stencil: since the printing unit i · -. I ₁ · .- :. for the Shahion printing process, whereby 5 is colored. not only does it often lick the head, Ie k e η η ζ e i c h η e t. that one in vvesent- machine, but also body and clothes of the i '..-- marriage of colorless leuco color, which is responsible for education. moreover it turned out to be schv, ici ... fines colored dye on contact with one the color on the copier with Leichtigk <\;