DE1546585A1 - Transfer or impression material and method for making same - Google Patents

Description

James Frederick SIiIPSON and Reginald David SIMPSOF
56 Whitehorse Road, Ringwood, Yictoria (Australia)

Transfer or Imprint Materials and Processes

for its manufacture

The invention relates to self-adhesive transfer or imprint materials called "decals" and a method for making them. Materials of this type or decals generally have a sheet of paper serving as a carrier for a flexible picture to be transferred, which ^{can be detached from the I 1} Hm in order to make the film
can be transferred to another document.

The most popular transfer or impression materials of this type are decals or the like to be transferred by moistening, in which the PiIm to be transferred, which is printed or produced in some other suitable manner, on the carrier sheet by means of a water-soluble Layer is held.

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In use, a transfer or impression material becomes of this type, immediately before transferring it to another surface, immersed it in water for a short time, whereupon the free side of the transferable film is pressed onto the substrate to which it is to be transferred, so that he touches this base uniformly. Then the carrier sheet is removed by carefully peeling it off the PiIm strokes or peelings off to the side. It goes without saying that by immersing the transfer material the water-soluble layer located between the PiIm and the carrier sheet was dissolved in water.

With this type of transfer, it is difficult to precisely position the film to be transferred in a predetermined position on the new pad, since the film, which is already wet when it is placed on the new pad, is easy slips when the rear carrier sheet is removed in the manner described above. The resulting minor shifts in the transferred film are of little concern in many cases, however In some cases they bind a major disadvantage, for example when it is desired to use one word or more To form words etc. from a multitude of letters to be transmitted in this way.

In the case of another known transfer or impression material » which is sometimes called "dry impression material"

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is referred to, the initially exposed side of the transferable film is coated with a contact or pressure effective adhesive, whereby the film can be attached to a desired substrate while it is still held on the carrier sheet. The back carrier sheet is then detached from the film without wetting it, for example by the application of heat to melt the holding layer consisting of wax, and then removed. A rock print material thus allows the film to be transferred to be precisely attached to the desired substrate.

In contrast, the object of the invention is to provide improved transfer or impression materials create and improve their production so that the production costs can be kept low and their application is simplified

Accordingly, a transfer or impression material is proposed according to the invention, which has a flexible Tx ^ backing sheet of freely water-soakable, ie absorbent material, on one side (hereinafter referred to as the front side) a water-soluble holding coating is provided, on the front side in turn a transferable one PiIm is located on the front side of the transferable film with a coating of a touch or pressure

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appealing adhesive is provided .. The transferable PiIm can thereby by means of the on touch or pressure appealing adhesive coating can be attached to a desired surface, while its back carrier sheet is still dry · Then the back carrier sheet is removed from the film after it has acted on the back The water applied to the carrier sheet, which dissolves the holding coating of the carrier sheet, is removed.

According to a preferred embodiment of the invention, the rear carrier sheet is made of blotting or blotting paper or other suitable material with similar water absorbency. Before the detachable retaining layer for the film to be transferred to the carrier sheet made of blotting paper or the like is applied, the front side is of the paper, preferably with a water-soluble or water-permeable pre-coating of coated, Glue or filler material provided, creating a smoother surface for receiving the retaining layer and in addition, excessive absorption of the material of this layer into the carrier sheet is prevented.

The pre-coating from the G-round coating material and the support layer or both layers can cover the entire surface of the face of the carrier sheet cover or either or both need only be provided where the transferable film is

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should be applied so that they are under the transferable film and just about its side edges extend out

Around the adhesive layer that responds to the touch or pressure Protecting the transfer or impression material until it is used is preferably on the same a practically non-adhesive cover sheet made of suitable paper or other flexible material such as a plastic film appropriate. This cover sheet, which preferably consists of silicone-coated paper, can be attached to one edge of the carrier sheet and is removed prior to use of the transfer or impression material.

The Yor coating of brush, glue or filler material, the soluble retaining layer, the transferable film and the adhesives responsive to touch or pressure are all preferably applied sequentially by screen printing processes although other application methods are also possible. When the precoat and the soluble Holding layer do not cover the entire surface of the carrier sheet, they are preferably by the same or Similar screens are applied which have openings roughly corresponding in shape to the transferable film, however are slightly larger than the same so that the edges of the precoat and the soluble holding layer meet about the lateral limits of the transferable film

extend beyond. . "..

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The transferable film can be made from any suitable oil paint, of lacquer, enamel or other for the same purpose in the manufacture of known transfer or impression materials or decals.

The transferable film can be printed by a single printing process according to the conditions of each case or by successive individual prints, as is customary, for example, in multicolor prints will. To simplify the application of the superimposed coatings on the carrier sheet and to to protect the carrier sheet against damage the latter preferably adhered or adhesively applied to a base plate before the precoating the front of the "carrier sheet is applied. For this purpose, the carrier sheet is preferably on the Support plate held by means of a suitable water-soluble material, which produces only a weak adhesive or adhesive effect, so that the carrier sheet after Coating can be easily removed from the panel. It is also necessary that the one used for this purpose Adhesive or adhesive material is water-soluble or freely permeable to water, so that the blotting paper or blotting paper of the carrier sheet can absorb water unhindered during the transfer process. One for this one A suitable glue can be a thin mixture of cooked starch, clay and water.

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When using the transmission or Impression material is first removed the written cover sheet and then the one that responds to contact or pressure Adhesive layer on the thus exposed transferable film to the substrate on which the film is to be transferred, pressed with the carrier sheet dry. Then the carrier sheet is applied moistened by water on its back or soaked with water, which causes the retaining layer on its Front side quickly loosens and then peeled off the carrier sheet or removed in a similar manner.

This is the case with the known decals or other transfer or impression materials to be moistened Carrier sheet made of dense paper with a smooth surface, which is still sufficient after immersion in water Must have strength so that it can be handled without damaging the film to be transferred. In contrast according to the present invention, the carrier sheet is not moistened until it has been brought into the position desired for transfer, so that the material of the carrier sheet does not need to have any special strength properties when wet.

That is, the back sheet of transfer material according to the present invention only has to have sufficient strength so that it is of the sub-

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location to which the film was transferred, without undesired Difficulties can be removed. On the other hand, this back carrier sheet needs to be more absorbent as the carrier sheets of known transfer or impression materials so that the water applied to the back of the carrier sheet is quick and effective dissolves the soluble retaining layer on the face of the sheet. Bs was found to be blotting paper for is very suitable for this purpose and appears to be superior to all other currently known materials.

In the drawing, two embodiments of the transfer or impression material according to the invention are shown, namely shows

1 shows a diagrammatic, partially sectioned view of an embodiment,

FIG. 2 shows a cross section along line 2-2 from FIG. 1,

3 shows a plan view of a modified embodiment and

Fig. 4 is a partial section along line 4-4 from Fig. 3

In the drawing, the thickness of the sheets and layers has been exaggerated in the individual figures for better understanding shown large. The ratio of the individual layer thicknesses to one another is also not unconditional shown correctly.

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In the embodiment according to Pig, FIGS. 1 and 2, the transfer or impression material comprises a carrier sheet 10 blotting paper of any suitable quality and thickness, with a medium thickness being preferred. The whole Front of this carrier sheet is initially with a Yorcoating 12 of a suitable water-soluble or water-permeable coating material or filler provided, which smoothes the surface of the blotting paper and which also reduces the absorption of a water-soluble retaining layer 14 in the carrier sheet 10, which subsequently is applied *

The filler used for the Yorbe coating 12 can consist of cooked starch and water and is preferably applied through a sieve so that it has a coating of practically uniform thickness. As a sieve made of silk or other natural fibers to clog a nylon or wire screen is preferred.

After the layer of filler has dried, the water-soluble retaining layer 14 is applied to it, preferably through a similar screen. This retaining layer, which extends uniformly over the entire front side of the carrier sheet 10, contains a suitable adhesive. A suitable mixture for this layer 14 contains potato glue or potato starch and water with small additions of glycerine, a cleaning agent and alcohol. - ~ ^£ 00984 1/0223 ^{BAD ORäG 'NAL}

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The transfer image to be transferred is then applied to the soluble retaining layer 14 in the form of a film 16. The PiIm 16 can be made from a suitable oil paint, enamel or varnish and can be applied in any suitable way, preferably by screen printing this film has dried, its front is covered in the same way with a coating 18 of sticky, coated on pressure-sensitive or touch-sensitive adhesive, which has any composition, for example, such as the adhesive coating known dry Transfer or printing material to be transferred,

This adhesive coating 18 is to be used until the transfer or impression material of a cover sheet 20 protected, ^s which is preferably only slightly if at all - sticks to the coating 18th The cover sheet 20 preferably consists of silicone-coated paper. If the silicone covering is only provided on the inside of the sheet 20, one edge of this sheet can be folded over inwardly to form a flap or fold 21 so that the inside of this fold can adhere to a strip 22 of the adhesive cover 18 which was previously on the corresponding part of the soluble retaining layer 14 has been applied. Thus, the cover sheet 20 is retained on the carrier sheet 10, but it can easily be torn off when the transfer or impression material is to be used.

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However, the cover sheet 20 can also be used in other ways be attached to an edge of the carrier sheet 10 or it can also only be done on the transfer or impression material be held by lightly gluing on the adhesive coating 18

fig · 3 and 4 show a slightly modified transfer or impression material in which the pre-coating made of filler and the water-soluble retaining layer 14 does not extend over the entire surface of the carrier sheet 10, but are only provided at points which are approximately in their Torrn with the corresponding, at a distance from each other arranged to be transferred films 16 match, however, are slightly larger than these. This causes the outer edges of the Yorbe coating 12 to extend and the soluble retention layer 14 beyond the outer edges of the respective transferable films 16, as shown in FIG 3 and 4 can be seen. This ensures that the films 16 are only attached to the holding layer 14 and in the successive coating processes the individual layers a are exactly in register lie on one another. However, the backing layers only need to protrude relatively little beyond the films 16.

Since a pre-coating of starch cannot be clearly seen on white blotting paper, it can be advantageous a dye in the pre-coating solution

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be seen so that the Yor coating is clearly visible and so that you can easily see all uncoated areas of the blotting paper.

If the precoat 12 and the soluble retaining layer 14 only with their xiand over the edges of the film or the Films 16 protrude, the top adhesive coating 18 practically over the entire surface of the carrier sheet 10 rather than just being applied to the surfaces of the transferable films 16. The reason for this is that the Adhesive coating 18 when applied directly to uncoated Parts of the carrier sheet 10 is applied, sucked into the same or sucked up by the same, so that the Adhesive only provides an effective coating on film 16 and on the protruding edges of the soluble support layer 14 18 forms, as indicated in FIG. 4. The laterally protruding edge part of the adhesive coating 18, which is directly Let applied to the edges of the soluble retaining layer 14 ensures that the edges of the films 16 when transferring the same are held firmly on the substrate to which the film is to be transferred. For this purpose, the protruding edges of the soluble retaining layer 14 are preferably suitable with a sieve Form applied adhesive coated, even if the adhesive is not on the whole Surface of the carrier sheet 10 is applied.

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When the film 16 is transferred to a base, the protruding edge parts or edge surfaces become of the adhesive coating 18 also transferred, * but was found that these protruding edges can be easily removed by washing with water.

As explained above, the paving paper carrier sheet 10 is preferably lightly applied to a support Plate 24 (Pig. 4) glued on before precoating 12 is applied to the front of the sheet. The carrier sheet 10 remains during the subsequent Applying the soluble retainer sheet 14, transferable film 16, and adhesive coating 18 to the Plate 24. This ensures that the consecutive Coatings are always applied at the predetermined point, i.e. in register with one another lie. In addition, this protects the blotting paper from damage. However, it is important that the adhesive for holding the carrier sheet 10 in place on the Plate 24 does not affect the free absorption capacity of water applied to the back of the carrier sheet during the transfer process.

When the soluble retainer 14 only works with the edges protrudes beyond films 16 arranged at a distance from one another, the spaces can be marked with lines 26 or others

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Markings can be printed to indicate the places where the completed transfer or impression material later to be subdivided Boll. If the transferable films are letters, numbers or other symbols are, these dividing lines can be arranged so that they have a predetermined distance between the to be transmitted Form symbols, for example by these lines touching each other next to each other or on one straight lines so that these lines show the exact positions of the letters in a word. if these dividing lines 26 are not printed on the soluble holding layer 14, they will be printed on of the films are also not transferred. From Fig. 3 it can be seen that the lines. 26 include rectangular areas, between each of which there is a letter from a transferable film.

On the other hand, subdivision and spacing markings can also be printed on the back of the carrier sheet 10, which also have a printed outline of the transferable film 16 may have.

Among other things, transfer and impression materials in accordance with the present invention are useful in making indicia which are intended for a wide variety of purposes and which heretofore have generally been made by expensive and skillful writing operations. For this and 0098A1 / 0223 Tr -

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other similar purposes enable the invention, transfer and impression materials to be used for printing all Letters of the alphabet or all digits or any other symbol in any desired size, color and Create shape so that any word you want and, or any number and, or any clue you want can be formed by selecting the desired letters and, or numbers and / or symbols. To be acceptable and to achieve clean-looking typefaces in this way it is of course necessary that the various Letters, numbers and symbols are correctly spaced from one another and precisely aligned with one another are as they would appear if duly by a clerk in the usual manner would be produced. Screen-printed symbols generally look better than any handwriting In this context, it should be noted that screen printing makes it possible to create the transferable Produce films in normal paint thickness.

Another area of application for the proposed transfer and impression materials is mending of spots or paint defects, for example in Motor vehicles.

Patent claims:

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Claims (10)

11 η t an £ ρ r ü e Ii e: 1. Transfer or print material, which is on a flexible carrier sheet of paper .- ,.;. d _ö ·]. a J. ure L. has a water-soluble holding layer held transferable film in the form of xsuehotabnn, digits, symbols or other pictures, because it geke η η ζ calibrate η et that the water-soluble iialto layer on its front side (14) for the film (16) carrying flexible carrier sheet (10) consists of freely water-permeable material and on the front side of the film and, if applicable, the retaining layer, an adhesive coating (18) that is responsive to touch or i) is provided, so that the transferable film can be attached to a base by means of the adhesive thereon while the carrier sheet is dry, whereupon the carrier sheet can be removed from the transferred film by applying water to its back which dissolves the holding layer. 2. transfer or impression material according to claim 1, characterized in that the carrier sheet (10) consists of blotting or blotting paper. 3. transfer or impression material according to claim 1 or 2, characterized in that on the front ' ceite of the carrier sheet (1C) a water-permeable 009841/0223 To r coating (12) made of glue or filler is provided under the soluble retaining layer (14). 4. transfer or impression material according to claim 3, characterized in that the / o'c coating (12) extends laterally over the transferable film (16), but not the total surface of the ΐι ^ α- : g: r: .latt9ö (1G) covered. 5. Transfer ä- or impression material nach.Anspruch 3, characterized gelzeun ^ eicLnet that the. The soluble retaining layer (14) extends laterally beyond the transferable film (16), but does not cover the entire surface of the carrier sheet (10). 6. transferring-s- odo;.? Impression material according to claim o, ciad / '- iroh marked, dai3 both the G-rundb-j ^ cüichtiLüg (12) as well as the laudable retaining layer (14)) both under the transferable i'ilm (16) lie, over u-.j .: ... lateral boundaries beyond extend. 7. Transfer or printing material after an or. . ■ i2hroren of Anaprücho 1 to 6, characterized in that the adhesive which responds to touch or pressure; ⁴ .'rr: füL ..: r3ug (13) on the front side of the transferable ji'ilmöß (16) and the protruding edges of the soluble holder j chi "fat (IA) arranged ifit. "5" BATH ^{O 1 RiOfNAL} 8. Transfer or reprint material according to an or several of claims 1 to 7, characterized in that the responsive to touch or pressure Adhesive coating. (18) an essentially no adhesive and easily removable cover sheet (20) is provided to cover the adhesive until use of the transfer or impression material. 9. Process »to produce a transfer or impression material;:, according to one or more of claims 1 to 8, characterized in that a weakly adhesive Scratch sheet (10) made of non-woven paper or the like a plate (24) serving as a base is arranged by means of a water-soluble adhesive, whereupon on the front side of this carrier blade a water-permeable round coating (12) made of glue 3- or pull fabric which contains starch, over it a water-soluble retaining layer (14) and then subsequently on this adhesive layer a transferable film (16) and finally a coating (18) made of touch or Pressure sensitive adhesive is applied. 10. The method according to claim 9> characterized in that that the base coat (12) and the retaining layer (14) should only be applied in such places and in such a size that their edges over the. The edges of the film to be transferred (1S) protrude, 009841/0223 ■ ■■ - _. and that the outer adhesive coating (18) is applied to the protruding edges of the soluble retaining layer and also to the front surface of the transferable film . BATH ORIGINAL 009841/0223 Blank page