DE1816759C3 - Decals for patterns - Google Patents

Description

The pattern layer can advantageously also be applied to the heat-resistant base by a combination of pressure and heat in the stated temperature range of 90 to 140 ° C., the decal being applied under a pressure of not less than 0.7 kg / cm ² .

If wax-coated release paper was used for the backing layer, the wax layer melts and exposes the pattern layer, and at the same time the thermoplastic color softens and becomes sticky and in this way adheres to the heat-resistant base on which the decal is applied. The backing layer is then easily removed either manually, pneumatically or mechanically. : ₅

If a silicone-coated or impregnated paper or a flexible film is used as the backing layer the thermoplastic paint softens, becomes sticky and adheres to the heat-resistant surface ·. The backing layer can then easily be either manually, pneumatically or mechanically the relatively poor adhesion of the pattern layer to the silicone-coated or impregnated carrier removed.

Typical backing layers suitable for this are:

a) wax-coated paper,

b) paper coated with silicone on each side,

c) silicone-coated, flexible film, for example a plasticized cellulose acetate, regenerated Cellulose or polyester material.

A typical pattern layer material contains a uniform acrylic polymer composition, d. H. one without individual monomeric substances, and one coloring material. A suitable one Acrylic terpolymer composition for this purpose is:

Butyl methacrylate 41 percent by weight

Methyl methacrylate 4.5 percent by weight

Acrylic acid 4.5 percent by weight

organic solvent 50.0 percent by weight

100.0 percent by weight Suitable acrylic resins include:

1. methyl methacrylate-butyl methacrylate copolymer,

2. Ethyihexyiacrylate and

3. polybutyl methacrylate.

4. Cyclic ketone condensates or cyclohexanone resins. They are available in stores.

Coloring material ... 60 percent by weight

Acrylic resin 13 percent by weight

Cyclic ketone condensate 9 percent by weight

Organic solvent 17 percent by weight

Plasticizer 1 percent by weight

100 percent by weight

When using a silicone-coated or impregnated base, a suitable sample layer composition is: ,

Coloring material ..

Acrylic resin

Cyclic ketone condensate

Organic solvent

Plasticizers

Surface active
Substance - Amidwax-

60 percent by weight 13 percent by weight

8.7 percent by weight

17 percent by weight 0.6 percent by weight

0.7 weight percent IGO weight percent

The solvent for the acrylic resins may be ester solvents include, for example, amyl or butyl lactate, or aliphatic hydrocarbons, for example petroleum ether having a distillation range of 200/250 ⁰ C. The solvent should be selected so that it does not attack the waxy or polysiloxanbeschichtete paper .

Suitable compositions for design layers which include plasticizers are used for the The case where a wax-coated release paper is used are listed below. The inclusion of a plasticizer in a pattern layer composition increases the flexibility and the adhesion \ enable the pattern layer.

Conventional plasticizers, for example dioctyl phthalate, dibutyl phthalate and butyl halyl butyl glycol proved suitable. However, it has been found that printing inks, which resin, solvent and contain plasticizer ingredients, unsatisfactory on polysiloxane surfaces without the Addition of a surfactant to be printed, and tests showed that stearic acid and their derivatives, glycerol monostearate and stearic acid amide, also known as Amidwax, give satisfactory results.

The coloring material used can be the heat-resistant one depending on the purpose Base consist of an inorganic pigment and a portion of a vitreous material, how well it is. On the other hand, in cases where the heat-resistant pad is not very If exposed to high temperatures, a temperature-resistant, organic pigment can be used.

For example, the coloring material can be a flux or a plasma matrix made of lead silicate, lead borosilicate or lead calibrated silicate with minor additions of modifying oxides together with known, inorganic color compositions include, for example, cobalt aluminals, cobalt silicates, cadmium sulfoselenides and lead antimonate.

Similarly, organic pigments can be used provided they are lightfast and up to at least 200 C are heat resistant. Typical pigments that have such properties are the isoindolinone yellow, orange and red dyes, the dioxazine violet and phthalocyanine hlau and -Green dyes.

The pattern layer can be applied to the backing layer with one or more printing processes, for example Screen, cliché, high-dry offset or lithographic printing can be applied.

The following examples give typical approaches for the sample layer. Examples A, B and C include typical, inorganic, ceramic colors, while example D an organic, at 200 C or below includes stable pigment. In addition, the approach mentioned in Example B to printing on a Polysiloxane surface suitable.

Example A.

Cobalt aliminate blue,

ceramic enamel

Butyl methacrylate / methyl methacrylate

Mixed polymer

Amyl lactate

Diocyiphthalate

Example B.

Cadmium red, ceramic pigment

Polybutyl methyl acrylate

Cyelohexanone resin

BuUllactate

Diallyl phthalate

Amide wax

Example C

Lead antimonate yellow, ceramic enamel

M et hy 1 met hacry la t

2-ethylhexyl acrylate

Amyl lactate

Pelr'olälher; 200/250 C

Butyl phthalyl butyl glycolate

54.9%

23.1%

20.0 "/»

2.0 »/ '"

100.0 ¹ V ₀

55.5%

12.5%

15.0%

15.0%

KO%

KO%

100.0%

59.7 "'/" S, 5%

8.5 "/ o 11.0% 1KO%

1.3%,

100.0%

Example D

Phthalocyanine green 15.0%

Methyl methacrylate 18.0%

Ethylmexyl acrylate 18.0%,

Amyl lactate 23.5%

Petroleum ether; 200/250 C 23.5%

Biitylphlhalylbutylgiyiiolat 2.0%

100.0 "/ ,,

A decal made in accordance with this invention can also be used in one process step single or multi-layered surfaces made of lciifähigcm or insulating or dielectric or semiconducting Material or resistance material or two or more such layers on a heat-resistant one To apply pad. The conductor or conductor incorporated in a thermoplastic resin Resistance material can be precious metals or their compounds and fractions of vitreous substances and then fired in an air atmosphere will. However, such materials can contain other metals and their compounds, for example molybdenum, which is then in air or in an inert or reducing atmosphere depending on the material present, can be baked.

Claims (1)

ι 2 Such a composition at increased tempera patent claim: if kept open, it would flow on, and the The sharpness of the picture would be lost. On the other hand- AbziehbiJd for applying sharp, over is colourfast decorative patterns or other patterns 5, heated in the erfindungsgernäßen decals, the applied to a paper Ubertragungsmater.al to a 90 to 14O ⁰ C, which is then heat-resistant with a heated object in Beruh pad, Consisting of a removable backing: is, glued, causing the top layer, a dry separating layer as an intermediate layer. However, the peel-off layer according to the invention and a pattern layer which images an acrylic resin lose at the elevated temperature and one or more pigment materials or an io which do not sharpen, and they also do not start to form material with desired electrical properties. Especially the temperature range from% to transactions and includes but is on the backing layer in a 140 ⁰ C very advantageous for transmission. or several printing processes is applied, Shaped Gias comes with an assembly line production characterized in that the with about W to 140 ^u C from the cooling furnace, since it is after acrylic resin the pattern layer by de. Addition of 15 to the molding at a higher temperature, e.g. B. at 500 to maleic resin, modified maleic resin, modified 5mTC for technical glasses, is relaxed. The adorned colophony resin, cyclic ketone glass coming from the Ού-π must have such a temperature condensate or a cyclohexanone resin as a low temperature that it can be modified without the risk of breakage and low-melting components without the risk of renewed tension when applying the pattern layer on 20 nell or by hand, for example on relatively the base at a temperature in the range of cold grids or conveyors and 90 to 140 C is sticky without melting. weiteur.inport. On the other hand, you try To deliver the glass as hot as possible, because otherwise one too coarse I; inge of the cooling channel and the cooling time a.5 themselves would be required. However, these large ones cannot be shortened by cooling them down more quickly will. With ceramics it is not necessary to relax The invention relates to a decal for the up, but again, the discharge patterns 30 occurs at the end bring sharp, colourfast decorative patterns or the cooling tunnel useful in this temperature the other onto a heated to 90 to 140 ¹ C, area. heat-resistant pad, consisting of an ent-. For decoration on an industrial scale, it is removable push back, a dry separating layer is essential that one can without interruption of the as an intermediate layer and a pattern layer that a production line can work. For this purpose it is required-Acrylhar7 and one or more pigment materials lent that you can immediately after discharge the decor or can apply a material with the desired electrical self-decal. This is an asset contains and on the back layer in a match of the decal to the under normal un- or several printing processes is applied. would stand a predetermined temperature, in particular Decals for application to heated, heat-sensitive glass paint is required; on the other hand, stable bases are known, but the temperature to be selected depends on the earlier versions of such decals to be used, depending on the color material. Furthermore, a renewed knowledge is said to have flaws or disadvantages. So heat is to be avoided from the German. A temperature of the / u Auslegeschrift 1236 995 a hot-applicable ceramic-decorating goods in the range of 90 to 140 C miseries decal known, but expressly therefore allows a greater choice of colors and allows lent specified that softening points beyond a far-reaching protection des Be-165 ° C must be achieved, so that the actual service personnel from the effects of heat.
The paint and varnish should not be sticky, normal acrylic resin is at a temperature of if they are applied to the heated goods, 90 to 140 ³ C but not suitable for transfer since otherwise they are not released by the paper, so that previously either applied cold and were. Such a decal comprises three layers, which was then fired or a layer of lacquer, a layer of paint and finally the acrylic resin was applied under liquid,
borrowed a heat-activated adhesive layer, the object of the invention being a transfer for the only the latter is allowed to glue. The acrylic used here Aut penetration of decorative patterns or other patterns Resin serves as a binder for the pigment, and because of heat-resistant substrates, which are so expressed Application on relatively hot documents forms is that after its application to the bottom is A separate adhesive layer is required, as the 55 exposed this to the acrylic resin in a quick baking process not at the same time driving the transfer of the organic substance and binding the can provide necessary liability. In addition eni: - Pattern layer to be subjected to the backing this well known heat transfer decal holds a can. high proportion of organic substance from which the object according to the invention is achieved by a most of it is below the pattern layer. Fc ₁ : - 60 transfer picture solved, which is characterized by the fact that it is known from the German Auslegcschrift 1 080 444 the acrylic resin of the pattern layer through the addition of using acrylic resins in transfer pictures, but of maleic resin, modified maleic resin, modifiwobci the transfer by means of Water takes place. decorated rosin resin, cyclic ketone condensate-From the German patent specification 962 015 a carrier or a cyclohexanone resin is known as a low melt for a hot ßübei portable glass paint, whereby 65 zende component is modified in such a way that with this composition at elevated temperatures it is application of the pattern layer on the Underlay at Hießen and immediately after contact with the cold at a temperature in the range from 90 to 140'C must harden or solidify. If is without melting.