CS251153B1 - Sandwich matt drawing film - Google Patents

Abstract

The film consists of a transparent or translucent substrate, on which a functional drawing matte layer is applied, on which a light-sensitive non-halogen silver functional layer is then applied, preferably a light-sensitive diazographic assembly. The material is intended for use primarily in the entire field of construction and design practice and generally wherever reproduction materials are obtained by drawing, including, for example, graphic outputs of computer technology.

Description

The invention relates to a sandwich matte drawing film for manual and automated creation of reproduction materials by drawing or for technical drawing in general.

These materials are used in the fields of printing, cartography, electrical engineering, the textile industry and generally wherever materials are created for further reproduction.

Current matte drawing foils must be coated with a stencil photosensitive layer, e.g. based on chromium salts with subsequent washing out or coloring of the image shapes or reliefs. This method is time-consuming, when using chromium salts it is harmful to health and requires additional treatment of the materials before their application. The currently used method places considerable demands on wastewater treatment.

A sandwich matte drawing film for manual and automated creation of reproduction substrates by drawing has now been found, consisting of a transparent or translucent substrate, preferably a polyethylene terephthalate biaxially oriented film with a transparency of at least 65%, and matte and diazographic layers sandwiched thereon, characterized in that the underlying matte drawing layer in dry matter contains 35 to 95% by mass of polymeric binders of vinyl or polyamide polymers or cellulose derivatives and further 0.1 to 55% by mass of fillers and matting agents, for opaque white films even 5 to 35%

291 153 mass % of white opaque pigments and the diazographic layer is anchored on the surface of the dry matte layer by the effect of film-forming dispersion binders, preferably copolymers of vinyl chloride (vinyl acetate and vinyl acetate), ethyl acrylate or butyl acrylate and contains 3 47 mass % of these binders in the dry matter,

0.5 dt 48 $ mass stabilizing acids, 3 ^2 $ mass neutral or basic stabilizers, 0.8«£ 4l % mass diazo compounds alone or in mixtures and 0.8^47% mass color-forming coupling components.

The vinyl polymer binder of the matte drawing layer is polymers and polymer blends and copolymers of vinyl chloride, vinyl acetate and vinyl ethers.

The filler of the matte layer is barium sulfate, the matting agent is silicon dioxide, and the white opaque pigment for the opaque white drawing matte film is titanium dioxide.

The stabilizing acids of the diazographic layer are citric, boric, tartaric, oxalic, itaconic acids, alone or in mixtures, and the neutral stabilizers of the diazographic layer are urea and its derivatives and caffeine alone or in mixtures.

The diazo compounds are derived from p-phenylenediamine, preferably 47-diazo-N-alkyl- or 4-diazo-N, N-dialkyl-, or 4-diazo-N-alkyl-N-alkoxy-p-phenylenediamine alone or in a mixture, or the corresponding diazo compounds with a heterocyclic residue, and preferably morpholino, piperidino and pyrrolidino.

The color coupling components for the blue tone are substituted amides of hydroxycarboxylic acids, preferably morpholinopropylamide, diethanolamide, piperidide or piperazide acids derived from hydroxy- or polyhydroxynaphthalene or corresponding sulfonic acids and their salts, especially aminoethyl 2-hydroxy-3-naphthoic acid.

For a black tone, the blue coupling components are supplemented with yellow components whose coupling reaction kinetics are close to the kinetics of the blue components, preferably acetyl-acetylated ones.

251 153

- 3 derivatives of aniline, benzamide, toluidine, anisidine or polyhydroxyphenols and their substituted derivatives or substances of the ethylenediamine-bis-acetoacetamide type.

For red drawing, derivatives of alpha or beta resorcylic acid are used, preferably methyl or ethanolamide of 3,5-resorcylic acid or 4-bromo-3,5-resorcylic acid.

Examples of use, without limiting the invention:

Example 1

A matte white drawing layer is applied to a 0.1 millimeter thick polyethylene terephthalate substrate:

PVAC/PVC copolymer in a ratio of 1:3 8.8 g with a polymerization degree K 55-60 acetone 30.8 g cyclohexanone 35.3 g polyvinyl methyl ether 2 g titanium dioxide 4 g silicon dioxide 4.4 g

After dispersion, the dispersion is applied to the substrate in the usual manner in a thickness of 10 micrometers, calculated on a dry basis.

A light-sensitive diazographic composition with the following composition is applied to the dried layer:

deionized or distilled water 750 ml boric acid 6 g citric acid 28 g norpholinopropylamld 2-oxy-3-naphthoic acid 10 g thiourea 37 g aluminum sulfate 7 g zinc chloride 4 g

4-diazo-N,N-diethylaniline · ZnCl^, 12 g diethylene glycol 22 g

The substances are gradually dissolved and the solution is made up to 1000 ml with distilled or deionized water. 75 ml of an aqueous dispersion of vinyl acetate-ethyl acrylate copolymer 3:1 is added. It is applied in the usual way and dried. The thickness of the application is 2 micrometers on a dry basis.

- 4,251,153

carries dispersions with the following composition: nitrocellulose E 510 2, nitrocellulose2.a E 950 12, ethyl acetate 24, acetone 47, castor oil blown 3, aluminum hydroxide 10,

After copying the original by contact method or optical transfer and developing in ammonia vapors or a liquid developer, a working auxiliary image is obtained for subsequent processing of the drawing using drawing tools* Example 2

On a polyester pad with a thickness of 0.1 millimeter, .5 S .5 S 2 g h e .7 s >7 s

The dullness of the layer during drying is caused both by aluminum hydroxide and by partial precipitation of the binder*

Dry layer thickness 15 micrometers* A diazographic photosensitive composition is applied to this dry functional layer with the following composition:

deionized or distilled water 250 ml citric acid 12 g caffeine 4 g aminoethyl acid*2-hydroxy-3-naphthoic acid 4 g sodium acid,2,7-dihydroxy-3,6-disulfonic acid 2 g ethylenediamine - Ν,Ν-bis-acetoacetamide 1 g

1,3 - dihydroxyphenylurea 0.5 S zinc chloride 6 g aluminum sulfate 2 g thiourea 13 g

4-diazo-N-ethyl-N-hydroxyethylaniline

_ZnCl2 10 g

After gradual dissolution of the chemicals, the volume is made up to 300 ml with distilled or deionized water and 50 ml of 5θ aqueous dispersion of copolymers of vinyl acetate with dibutyl maleate (9^1) is added.

After drying and exposing the original, it is developed by the action of

251 153

- 5 alkalis image in black. Then the reproduction template is drawn.

Example 3

Use as a material for drawing or photomechanical reproduction.

It is applied to a polyester backing with a thickness of 0.08 millimeters.

dispersion on the composition: copolymer vinyl acetate - vinyl chloride 13:87 16.7 g methylcyclohexanone 33 with acetone 136 with barium sulfate 11 with silicon dioxide to particle size 15 micrometers 3.3 with

A layer of dry matter with a thickness of 15 microns. A light-sensitive diazographic composition according to example 1 is applied to this dry layer and dried. After copying the original and developing in an alkaline environment, the material can be further drawn on and used for subsequent reproduction.

Claims (9)

SUBJECT OF THE INVENTION 251 153 Sandwich matt drawing film for manual and automated production of reproductive substrates by drawing, consisting of a transparent or translucent backing, preferably a polyethylene terephthalate biaxially oriented film with a transparency of at least 65%, and sandwiched matt and diazographic layers applied thereto, characterized in that The matt drawing layer in dry matter contains 35 95% by weight of polymeric binders of vinyl or polyamide polymers or cellulose derivatives, and 0.1% by weight of fillers and matting agents, 55% by weight of opaque white pigments for opaque white foils and diazographic layer is anchored on the surface of the dry matt layer by the action of film-forming dispersion binders, preferably vinyl chloride / vinyl acetate and vinyl acetate / ethyl acrylate or butyl acrylate copolymers and contains 3% by weight in the dry matter. 47% by weight of these binders, 0.5% by weight of stabilizing acids, 3% by weight of 42% by weight of neutral or basic stabilizers, 0.8% by weight of diazo compounds alone or in mixtures, and 0.8% by weight of diazo compounds; $ mass-forming coupling components * 2 * Sandwich matt drawing sheet according to claim 1, characterized in that the vinyl polymer binder matt drawing layers are polymers and blends of polymers and copolymers of vinyl chloride, vinyl acetate and vinyl ethers. 3 · Sandwich matt drawing foil according to claim 1, characterized in that the filler of the matt layer is barium sulphate and the matting agent silicon dioxide * 4. The sandwich matt drawing sheet of claim 1, wherein the opacifying white pigment for opaque matt drawing sheet is titanium dioxide. Sandwich matte drawing film according to claim 1, characterized in that the stabilizing acids are diazographic 251 153 layers are citric, boric, tartaric, oxalic, itaconic acids. alone or in mixtures. A sandwich matt drawing sheet according to claim 1, characterized in that the neutral stabilizers of the diazographic layer are urea and its derivatives, or caffeine alone or in mixtures. 7. Sandwich matte drawing film according to claim 1, characterized in that the diazo compounds are diazo compounds derived from p-phenylenedlamine, preferably 4-diazo-N-alkyl or 4-diazo-N, N-dialkyl- or .beta.-diazo-. N-alkyl-N-alkoxy-p-phenylenediamine alone or in admixture, or the corresponding diazo compound with a heterocyclic moiety, preferably morpholine, piperidine and pyrrolidine. 8. Sandwich matte drawing film according to claim 1, characterized in that the color-forming coupling components are hydroxycarboxylic acid amides, preferably morpholinopropylamide, diethanolaraid, piperidide or piperazide, of hydroxyl- or polyhydroxina-phthalene or the corresponding sulfonic acids and their salts. especially aminoethyl 2-hydroxy-3-naphthoic acid. 9. A sandwich matt drawing sheet according to claim 1, characterized in that for the black ton, the blue coupling components are supplemented with yellow components whose coupling reaction kinetics is close to that of the blue components. 10. A sandwich matte drawing film according to claim 1, characterized in that alpha or beta resorcylic acid derivatives, preferably 3,5-resolcylic acid methyl or ethanolamide or 4-bromo-3,5-resoloylic acid, are used for red drawing. .