DE2211632A1 - METHOD OF MAKING DECORATIONS ON ANY OBJECT - Google Patents

Description

DIPL-ING. RUDOLF S. K O D R O N - P A T E N T A N W A L T MAINZ / RHEIN, AD AM-K AR RI L LO N-STRASSE 30 221 1632

8 ₀ March 1972 lfdo No. ₀ 72196

Patent registration

of the companies J. Albrecht, Mainz-Mombach and F ₀ Xaver Leipold, Zirndorf

Process for making decorations on any object

The invention relates to a method and associated with "tel for producing decorations on any articles using peel or sliding images _o

Many items of daily use are with Deco · = · rations provided Particularly well known are those werter--increasing decorations for _Q B ₀ development for the products Przellan- and ceramics industry, in Emailtopfherstel- in the souvenir and toy making _o

Such promotional and value-adding decorations are applied in different ways to the objects to be decorated

A common type of decoration is direct screen printing

Since not all objects to be decorated are suitable for direct screen printing, such objects are also pasted with decorative strips, these decorative strips being self-adhesive could be,

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The decals or decals are also used for the decoration of objects the self-adhesive picture,

The decoration of objects with decals, decals or self-adhesive pictures has opposite the decoration with stripe decors, self-adhesive foils etc. the advantage that these pictures, since they are no lacquer pictures, are very good and cuddly on the objects to be decorated, and one initially has the impression that it is with these Decorations are printed decors.

Unfortunately, these decorative images also have a serious disadvantage and that is, to their transfer So-called mask film necessary, the component of a peel-off or slide-on picture and self-adhesive picture is. That clear, see-through mask film remains After transferring on the decor and on the decorated object. This masking film remains visible, soiled light and is also sensitive to scratches.

This is understandable when you consider that the masking film is first necessary to remove the decorative image from Carrier material towards the object to be decorated transferred If the transfer takes place as a wet slide or decal, the decorative image will be transferred to a decal paper is printed, watered and transferred to the object together with the masking film and

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squeezes »For this purpose, the lacquer film must be elastic and stretchable and must not be hard and be brittle or tear. After the transfer, these properties are no longer desired, because now the lacquer film should actually be very hard, scratch-resistant and resilient. It is understandable that these two opposing properties cannot be combined »

In the case of self-adhesive pictures, there is also adherence between the surface of the object to be decorated and a permanent adhesive film, which gives the picture a certain softness, in front of the picture especially at slightly elevated temperatures,

In order to make the decorating process more understandable with the help of decals, this is the state of the art briefly described:

A special carrier paper is generally used for the production of decals for the decoration of objects used, which on its top a water-soluble line of dextrin or the like Contains material.

A decoration is then printed on this paper in one of the common printing processes, often screen printing. A clear film lacquer is now printed on the decorative image, as a closed mask over the fermented decor. The closed paint mask is necessary

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manoeuvrable, so that the decal holds together after soaking and transferring. Without decal film if the decorative print could not be transferred, the decorative image is placed in water when decorating. The water permeates the paper from the back and dissolves the dextrin layer, that Decorative image, held together by the foil-like Masking film, can now be slipped onto the object to be decorated and comes with a Rubber roller or a rubber squeegee firmly squeezed. The picture dries and sticks with the help of the dextrin slime that is under the Image is located. The decorated objects can also be subjected to a weak heat treatment will. The heat treatment must not be too long and too high, otherwise the mask film melts or cracks or changes in color.

The invention was based on the object of finding a decor option that had the advantages of the sliding image has, but the serious disadvantage, namely the remaining mask film on the decorated item does not have. This task is difficult because of extensive experiments and studies have shown that with the conventional mask printing varnishes on the usual screen printing inks an interlocking and anchoring was always achieved.

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The aim was to develop a mask print varnish that would not be compatible with decor printing connects or to develop screen printing inks, which can be overprinted with a specially adjusted mask print varnish without it on itself to adhere.

Furthermore, the demand was made that the screen printing inks should be heat-curable so that decorations transferred to objects together with " the objects can be subjected to a temperature effect in order to harden and melt, to achieve the decorative colors on the objects.

As a solution according to the invention it has been found that screen printing inks on the basis of oil-free, 'saturated polyesters in coordination with urea resins or Melamine resins can be overprinted with suitable masking varnishes without causing adhesion. the lacquer film on the color decoration comes.

After recognizing this property, it was now possible to overprint these decorative images with mask printing varnishes of the oil-free unsaturated polyester resins in use as binders for screen printing inks, mask printing varnishes are used, which due to their composition in their adhesive behavior on objects are reduced.

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Will the sliding images produced according to the invention Transferred to the objects to be decorated, the gluing takes place first the dextrin residue that is under the pictures and that has been transferred from the paper " According to the invention, after predrying, the film mask is now dry from the object and from the decorative image deducted. After the film has been peeled off, the object can now undergo temperature curing are subjected, in general, temperatures of 120 C to 2 ^ 0 C and exposure times of five to § = thirty minutes are sufficient.

When a higher gloss of the decor paints is achieved after the color prints have been completed, a colorless top coat can be applied over the colors can be printed on the same basis or on a two-component lacquer basis through additives such as hard synthetic resins or reaction hardeners such as isocyanates be cured so that the surface adhesive diminishes before overprinting with the removable film varnish will. The decorative prints can also be overprinted with a top coat that can be thermally activated, e.g. consists of thermoplastics. A thermally activated overprint varnish is are used when the images are not transferred wet using the usual sliding images, but rather when the images are pressed onto heated objects or with the help of a heated roller or one heated ram to be ironed onto cold objects.

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Claims (1)

March 8, 1972 serial number 72 196 Claims Method of making decorations on any object using Transfer or slide images, characterized in that that peel-off or sliding pictures are used in which the color decor printing with Screen printing inks are made that act as binders Synthetic resins based on oil-free, saturated polyesters in combination with Contain urea resins or melamine resins. 2, method according to claim 1, characterized in, that the decorative prints are provided with a gloss-increasing varnish that is on the same Resin-based or manufactured on another basis and may contain additives that reduce its surface tack reduce. 3β method according to claim 1 and / or claim 2, characterized in that the decorative prints with a Foil varnish can be overprinted, which can be removed dry after transferring the images. 309838 / 0U1 h " Method according to claim 1 and one or both of the preceding claims, characterized in that these decorative images are transferred to the objects to be decorated as wet sliding or decals" 5. Method according to one or more of the preceding claims, characterized in that that the decorated objects are subjected to a brief heat drying in order to dry out speed up the images. 6 · Procedure according to one or more of the preceding Claims, characterized in that the images are pressed onto heated objects and stick to the objects due to the action of the heat 7 »Procedure in accordance with one or more of the preceding Claims, characterized in that after the applied decorations have dried the lacquer film is peeled off dry. 8. The method according to one or more of the preceding claims, characterized in that the decorated objects can be subjected to heat curing which involves burning the decorative colors on the substrate. 309838/0141 - ο - 9. Method according to one or more of the preceding claims, characterized in that that the objects to be decorated can be pretreated as desired so that they can also be afflicted with layers of plastic or other layers. 10. Abzieh- ^ or sliding image for carrying out the method according to one or more of the preceding claims, characterized by a decorative color print made from Siebdruckfax-ben ₉ which resins as binders are synthetic resins based on oil-free, saturated polyesters in coordination with urine-off resins or molassic resins included 309838 / 0U1