ES2320519B1 - TRANSPARENT PRINTER FOR COLD TRANSFER BRACKETS AND LAMINATED BRACKETS. - Google Patents

Abstract

Transparent primer for media cold transfer and laminated supports.

The present invention describes a composition of primer comprising: (A) 65-83% of a aqueous solution of gum arabic comprising between 20 and 30% of gum arabic by weight with respect to the total weight of the solution, watery; (B) 15-25% acrylic resin; (C) 2-10% humectant; and (D) 0.1-1.0% of disinfectant and the preparation of a transfer support in cold or a laminated printer stand with said composition.

Description

Transparent primer for media cold transfer and laminated supports.

Field of the Invention

The present invention falls within the pictorial techniques, in the decoration sector, of the arts graphics and teaching in fine arts. More specifically the invention refers to a new primer composition that allows to condition laminated supports of metal, wood and plastic, to receive a pigmented ink from printers and prepares  Temporary media to transfer cold images to a media receiver.

Background of the invention

The mechanical processes to perform Image transfers can be of the electrographic type, photographic, photogravure, photolithographic and some materials photosensitive Electrography (photocopiers, printers), is the printing system for the process of transferring more images suitable for high quality images to be transferred to other media. This mechanical process is what is involved in the present invention.

The industry supplies different types of supports drops transfer, also called temporary supports, where the selected image is adhered by said process electrographic (photocopy or printing), to later be moved, from this temporary support to the receiving support of said image. These temporary materials or supports can be of plastic type (PVCs), vitrifiable papers (used normally for ceramic processes) and decals (for processes of cold transfer). Each of these materials has specific qualities to adapt to the various processes of transfer.

Transfer processes existing in the State of the art are:

one.

dissolution transfer process where solvents such as trichlorethylene are used, the universal solvent, gasoline, ketones and Benzenes

2.

transfer process by heat / pressure used whenever the receiving support is liable to be heated and that the toner is provided with a unstable way over temporary support. The application of Some pressure facilitates the process.

3.

transfer process in cold.

Most transfer processes of images that are made today are through processes of heat / pressure By applying heat / pressure on the transfer support, you can fix an image on another support. Another modality is the use of solvents, which apply in the image of the transfer support and in contact with The desired surface. With heat transfer system to transfer an image, it depends on plates Domestic or industrial. In addition the industry offers sizes of standard transfer papers (DIN A3 and DIN A4) that limit the  results. On the other hand, the use of the transfer of images by using solvents is highly harmful to the Health and not recommended.

Cold image transfer has the advantages of not depending on any heat source or having to Use solvents. For such cold process it is necessary Use specific transfer media. It is the case of decals Outside the scope of decals, they are investigating cold transfer media consisting of plastics with a chemical composition and a grain on the surface specific, which allow to transfer a previously printed image on that temporary support to any receiving support. For what a transfer is successful, it is necessary that the Final receiver support is as smooth as possible. The images can be transferred to both porous and porous receptor supports waterproof, but the latter must be pre-treated to that the image is set correctly. Once the material is used transfer can no longer be used again, as it loses its properties.

On the other hand to print an image from a printer there are specific photographic papers on the market with high cost and standard formats. If it is desired to print on a laminated support of any material (metal, wood, plastic, etc.), it is necessary to condition the surfaces to receive the ink from the printers. For this, a product called inkAID is currently used, which is sold exclusively in the US. and it is cost
high.

The present invention relates to the preparation of a type of primer that allows to condition supports for transfer cold images, as well as condition media laminated metal, wood or plastic to receive the ink of the printers

Said specific primer allows preparing a plain plastic any as temporary transfer support in cold, without depending on the specific qualities of plastics. This new primer makes it possible to transfer images to any surface, even in rough areas. In addition, by using such primer is not necessary to pre-treat the media receptors of the transferred image, whether they are porous or waterproof, except for rugged receiver supports, which if they are not waterproof, they must be waterproofed previously. Once the transfer is finished, the plastic can return to be used.

The invention provides a primer transparent for transfers that is also optimal for condition all types of supports that can be introduced by a printer. The supports can be both porous and waterproof, conditioning them to receive the ink correctly of printers.

This does not depend on the supports offered by the industry or the inkAID product and opens a large range of possibilities of using different supports for printers, not limited to specific photo paper.

Description of the invention

The present invention provides in one aspect a primer composition comprising:

(TO)

65-83% of a aqueous solution of gum arabic comprising between 20 and 30% of gum arabic by weight with respect to the total weight of the solution watery;

(B)

15-25% resin acrylic;

(C)

2-10% humectant; Y

(D)

0.1-1.0% of disinfectant,

and where the percentages are expressed by weight with respect to the total weight of the composition of primer.

In a preferred embodiment the composition understands:

(TO)

74.5% of an aqueous rubber solution arabic comprising 25% gum arabic by weight with respect to total weight of the aqueous solution;

(B)

twenty% acrylic resin;

(C)

5% of ox bile; Y

(D)

0.5% of disinfectant,

Gum arabic, polysaccharide of natural origin, useful in the preparation of the composition of the invention, can in principle be any conventional arabic gum known for a skilled. This gum arabic is available commercially, for example, Kordofan "grain" Arabian Gum from Cofarcas - Comercial Farma Farmaica Castellana S.A. Resin acrylic, or acrylic polymer used to prepare the composition it can be in general any conventionally acrylic resin used in the field of the present invention and affordable commercially, such as Acrylic studio, by Acrylicos Vallejo, S.L No. 27,

Ox bile is an affordable moisturizer of commercial form, for example, Ox Hiel OX GALL 051 of the house Royal Talens

The disinfectant that can be used in the composition of the invention is selected from pentachlorophenate sodium, sodium orthophenylphenate, vinegar, clove essence, phenol and their mixtures.

The primer composition onwards also primer composition of the invention, is useful in the preparation of a cold transfer support or a support printer laminate. Therefore in another aspect the invention provides the use of a primer composition in the preparation of a cold transfer support or a support printer laminate.

The invention also provides a primer procedure for the preparation of a support cold transfer comprising:

-

application of a layer of acrylic gel on a plastic;

-

dried out of the layer;

-

application of a composition layer of primer;

-

dried out of the layer; Y

-

obtaining transfer support cold

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In principle any plastic, in particular a smooth plastic without specific qualities can be used to Prepare a cold transfer support. In one embodiment Particularly the plastic is polypropylene. Plastic thickness it is typically between 50 and 300 µm. Optionally the plastic can stick to a cardboard with glue spray so that the printer does not wrinkle due to its thin thickness.

The first layer of acrylic gel is applied typically conventionally with a brush. The layer of the Primer composition of the invention can be applied in conventional shape with soft hair brush, or spray by gun and compressor, or by a mouth spray. Once the support for cold transfer is prepared, it is already can be inserted into a printer to receive the image of the pigmented inks This support for cold transfer It constitutes a further object of the present invention.

Moreover, the invention provides in another aspect a primer procedure for the preparation of a laminated support for printers comprising:

-

application of a composition layer of priming the invention on a laminated support;

-

dried out of the layer; Y

-

obtaining a laminated support for printers

According to the invention any support Laminate can be used in this primer procedure, either porous or waterproof. By way of illustration, between the supports porous can be cited, among others, canvas cards, cardboard, and laminated wood. By way of illustration, between the supports waterproof can be cited, among others, plastics and metals laminates

The supports can maintain their natural color of background or previously printed with a white acrylic background. In a particular embodiment the support is a commercial canvas with a white primer, on which the layer of primer composition of the invention, thus respecting said background.

In a particular embodiment, a layer that extends to cover the surface is applied. Alternatively, two layers can be applied consecutively, in which case the second layer is preferably applied with a gun or sprayer to homogeneously cover the surface. Naturally, if the density does not allow it, the primer composition is diluted with water in an apparent proportion to one skilled in the art. Spraying this primer composition of the invention in two layers is advisable for moisture-deformed laminated supports, such as cardstocks, or thin sheets of wood. The primer should cover the surface evenly. The thin, moisture-deformable laminated substrates, such as cardstocks, for example, weighing less than 300 grams per square meter, can be smoothed once the primer layer dries, sticking them on a smooth surface, for example, with an adhesive assembly spray graphics such as polychrome screens LS 72E, for ironing using a roller. In light weight cardstock, the primer can soak and pass through the support, sticking it
to the base surface. To avoid this, you should use a plastic base that can be easily detached.

The laminated support for printers obtained You are ready to receive pigmented ink from a printer. This laminated support thus obtained is also an object Additional of the present invention.

Once the image is printed it is advisable to leave dry at least 1 h and preferably protect with a varnish not dilutable in water.

The cold transfer support object of the  The present invention can be used in a process of Cold transfer of an image. In this sense the invention provides in another aspect a transfer procedure in cold of an image that includes:

-

support introduction cold transfer of the present invention by the printer;

-

reception by the support of cold transfer of a pigmented ink image;

-

dried out of the printed image; Y

-

transfer of said printed image to a receiving surface

Image transfer can be done to any receiving surface of any nature, be it  smooth, rough, permeable or waterproof.

When the receiving surface is porous the method further comprises the application of a varnish layer non-dilutable in water to waterproof and avoid that the ink runs (see Example 6) on the printed image, and once dry, before being transferred. Once dry this layer of varnish is then applied a layer of acrylic gel or other transparent adhesive material such as contact glue diluted in turpentine (See Example 6). Then the support of cold transfer sticks to the chosen receiving surface, it Press with your hands or with a sponge-scourer. It is allowed to dry and the plastic is removed. If you wake up with caution and the plastic is removed it is not necessary to wait for dry the acrylic adhesive.

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In a particular embodiment when the Receiving surface is waterproof or rough, a glue is applied  diluted turpentine contact with a percentage in contact glue between 30% -50% by weight with respect to the total weight of the mix contact glue and turpentine. The diluted contact tail is It applies to both the image and the receiving surface. When the surfaces dry out and stop being unctuous, it sticks the image on the chosen receiving surface, pressure is applied with your hands and take off then. When the surface is rough pressure is made with the help of a sponge-scourer.

When the surface is rough and permeable, it It should be waterproofed with acrylic gel to prevent absorb the contact tail. If air bubbles remain, these will remove by pricking them with a needle or similar utensil and pressing with the sponge. The contact tail and turpentine will not dilute the printer ink so it is not necessary to set the varnish image.

In the particular case of a transfer in cold to a rough surface the plastic has a thickness preferably not more than 50 microns.

To implement the procedure of transfer of the invention should be borne in mind that the transfer involves an inversion of the image so that must be invested in the computer.

An advantage of the transfer procedure cold of the invention lies in the fact that once the transfer, the plastic can be reused.

Below are examples illustrative of the invention set forth for a better understanding of the invention and in no case should be considered a  Limitation of its scope.

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Examples

Example one

Primer procedure for the preparation of a support cold transfer

A 40 micron thick layer of Acrylic gel from Agroquímica del Vallés, S.L. by brush soft hair on a 50 micron plain polypropylene plastic. Said layer had a thickness of 70 grams / m2.

The layer was allowed to dry for 3 or 4 hours. He necessary time was easily noticed since the gel went through Full of being white to transparent.

A layer of one was then applied Primer composition containing: 74.5% solution of Kordofan Arabic gum bean, from Cofarcas, S.A. in 25% water in weigh; 20% acrylic resin, Acrylic studio, by Acrylicos Vallejo, S.L. No. 27; 5% OX GALL 051 ox of the house Talens; and 0.5% vinegar. This layer was 65 thick grams / m2. Said layer was allowed to dry for one hour and was obtained a cold transfer support.

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Example 2

Primer procedure for the preparation of a support porous cardboard laminate

A layer that covered and covered the pores was applied of the cardboard, of a primer composition containing: 74.5% solution of gum arabic in water at 25% by weight; 20 of acrylic resin; 5% ox bile; and 0.5% vinegar. That layer it was allowed to dry for one hour and a laminated support of cardboard ready to be inserted into a printer and receive pigmented ink

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Example 3

Primer procedure for the preparation of a support wood porous laminate

The same primer was applied as in the example 2, but using a gun to spray slowly and homogeneously the preparation.

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Example 4

Primer procedure for the preparation of a support waterproof metal laminate to receive pigmented ink from a printer

It was carried out in the same way as example 2. There was no wrinkling problem here.

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Example 5

Primer procedure for the preparation of a support waterproof plastic laminate to receive pigmented ink from a printer

It was carried out in the same way as the example 2.

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Example 6

Cold transfer procedure of an image to a smooth wall

A cold transfer support was prepared according to Example 1. This was introduced in an Epson Stylus printer  PRO 7600 and received from it the image, previously inverted in the computer, with pigmented inks "epson ultra chrome". Be let the image dry, a layer of acrylic varnish was applied waterproofing (Titan) and allowed to dry again.

A gel layer was then applied Acrylic of Agroquímica del Vallés, S.L. on the wall. The support cold transfer stuck to the wall, pressed with the hands, with a roller, or with a sponge scourer, allowed to dry one day and the plastic took off obtaining the wall with the image printed.

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Example 7

Cold transfer procedure of an image to a waterproof stand

The cold transfer support was prepared printed as in the previous example.

A layer of glue was then applied contact diluted in 50% turpentine on the varnished support and also on the metal support receiver.

They were allowed to dry until the surfaces did not They were unctuous to the touch. The transfer support was stuck to the support by pressing with a sponge scourer. Finally I know the plastic took off obtaining the printed support.

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Example 8

Cold transfer procedure of an image to a rough stand

The cold transfer support was prepared printed as in the previous example.

A layer of glue was then applied contact diluted in 50% turpentine on the varnished support and also on the stone support receiver.

They were allowed to dry until the surfaces did not They were unctuous to the touch. The transfer support was attached to the rough support by pressing with a sponge scourer, using the face scourer. The plastic was peeled obtaining the support printed. Finally the elastic film was pressed with the sponge transfer so that it penetrates and attaches to the gaps of the rough support.

Claims (13)

1. Primer composition comprising:

(TO)

65-83% of a aqueous solution of gum arabic comprising between 20 and 30% of gum arabic by weight with respect to the total weight of the solution watery;

(B)

15-25% resin acrylic;

(C)

2-10% ox bile; Y

(D)

0.1-1.0% of disinfectant,

where the percentages are expressed by weight with respect to the total weight of the composition of primer. 2. Composition according to claim 1, which understands:

(TO)

74.5% of an aqueous rubber solution arabic comprising 25% gum arabic by weight with respect to total weight of the aqueous solution;

(B)

twenty% acrylic resin;

(C)

5% of ox bile; Y

(D)

0.5% of disinfectant,

3. Use of a composition according to any of claims 1 or 2, in the preparation of a support of cold transfer or a laminated printer stand. 4. Primer procedure comprising for the preparation of a cold transfer support that understands:

-

application of a layer of acrylic gel on a plastic;

-

dried out of the layer;

-

application of a composition layer primer according to claim 1 or 2;

-

dried out of the layer; Y

-

obtaining transfer support cold

5. Method according to claim 4, in The plastic is polypropylene. 6. Method according to claim 5, in the plastic has a thickness between 50 and 300 \ mum. 7. Method according to claim 4, which It also includes sticking the plastic to a cardboard with glue spray. 8. Primer procedure for preparation of a laminated support for printers that understands:

-

application of a composition layer of primer according to claim 1 or 2 on a support;

-

dried out of the layer; Y

-

obtaining a laminated support for printers

9. Method according to claim 8, in which the laminated support is deformable to water and comprises, In addition, apply a layer of waterproof varnish to the support before Apply the primer composition layer. 10. Support of cold transfer obtainable according to the method of any of claims 4 to 7. 11. Laminated support for printers obtainable according to the method of claim 8 or 9. 12. Use of cold transfer support according to claim 10, in a transfer process Cold of an image. 13. Cold transfer procedure of An image that includes:

-

support introduction cold transfer according to claim 10 by a printer;

-

reception by the support of cold transfer of a pigmented ink image; Y

-

dried out of the printed image; Y

-

transfer of the printed image to a receiving surface