KR20060063859A - Inflating sticker and its producing method - Google Patents

Abstract

 The present invention relates to a foamed sticker and a method of manufacturing the same, wherein the adhesive is bonded to the bottom of the print layer provided with a pattern so that the pattern consisting of the foamed ink layer is bonded to the surface to be bonded. A transfer paper layer having a surface which has a surface treatment that is non-adhesive with ink; A foam printing ink layer positioned on the surface of the transfer paper layer on which the surface is treated, and having a pattern expressed on an object to be bonded; An adhesive layer positioned on a bottom surface of the printing ink layer to impart adhesion to an object to be bonded; And a release paper layer located on the bottom of the pressure-sensitive adhesive layer; There is a technical point to provide a foam sticker consisting of. Therefore, the adhesive is directly bonded to the surface of the printing ink layer so that a separate substrate layer, such as a film, is unnecessary, thereby preventing wrinkles or breakage of the sticker even on a curved surface or a wrinkled object to be adhered to. Since it is not used, it does not cause environmental pollution.

Sticker, release paper, transfer paper, ink, foam

Description

Foam sticker and its manufacturing method

1 is a cross-sectional view of a conventional common sticker.

2 is a cross-sectional view of a sticker according to the present invention.

3 is a view showing the manufacturing process of the sticker according to the present invention.

                      <Description of the reference numerals for the main parts of the drawings>

100; Sticker 110: Transfer Layer

120: back printing ink layer 130: foam printing ink layer

140: pressure-sensitive adhesive layer 150: release paper

The present invention relates to a sticker, and more particularly, to a foamed sticker and a method of manufacturing the adhesive to be bonded to the bottom surface of the printing layer provided with a pattern to combine the pattern consisting of only the foam ink layer on the surface to be bonded.

In general, a sticker is used for the purpose of attaching a printed layer on which a pattern is formed to an adhesive object, and then peeling it off again when it is not necessary. Such stickers are widely used and used due to their simplicity of use.

Briefly looking at the structure of such a general sticker, as shown in Figure 1, the pressure-sensitive adhesive layer 20 is formed on the upper surface of the release paper 10, the base layer 30 is provided as a basis for the pattern to be printed on the upper surface do. The base layer varies depending on the type of ink to be printed, but may also use ink made of PVC or PET, and paper or fabric may be used. In the case of the PTI or fibish ink, after curing, the thin film is formed. In addition, the upper surface of the base layer 30 such as the film-like base layer 30 or the paper is provided with a printed layer 40 to form the required pattern.

In order to use the sticker provided as described above, the release paper 10 is removed, and the adhesive layer 20 is adhered to the surface of the object to be adhered by bonding the sticker. As described above, the structure of the general sticker provided with the printing layer 40 on the upper surface of the base layer 30 is a general sticker shape, Korean Utility Model Publication (Registration No. 20-331287, Publication No. 20-195706) It is well shown on the back.

In the case of the sticker forming the above structure, the following problems occur.

First, the base layer serving as the base of the print layer forming the pattern has a problem causing environmental pollution. That is, generally, a fibish or a Piti ink is used as the base layer of the sticker as described above. When manufacturing the film forming the base layer using such an ink, there is a problem causing environmental pollution by using harmful substances such as plasticizers, environmental hormones among the main components constituting the ink.

Therefore, in the case of the use of these materials, paper or synthetic fiber fabrics are used as the material of the base layer in reality, but when moisture or the like comes into contact with the surface of the sticker when these are used as the base layer, The sticker itself is damaged, causing a problem that is difficult to use for a long time.

Second, when the base layer is used, there is a problem in that the adhesive surface is damaged. That is, when the base layer is manufactured using the fibish or FT ink, as described above, the base layer has a thin film shape. Will be made. When the adhesive is bonded to the adherend on the lower surface of the base layer, the base layer has a predetermined thickness, and thus, when the sticker is attached to the curved surface, or when the bending occurs after the adhesion, the film is bent. Or breakage or the like. Therefore, there is a problem in that the printing layer attached to the film upper surface is also not bent due to bending damage.

Third, in the case of a sticker provided with a base layer made of a film, it is difficult to evenly adhere to the adherend. That is, in the process of attaching the sticker by bonding the adhesive layer to the adherend, when foreign matter such as air remains on the surface to be adhered, there is a problem in that the film is wrinkled and damages the sticker.

Therefore, the present invention is to solve the above problems, an object of the present invention is to provide a sticker that is not provided with an environmentally friendly and separate base layer does not cause environmental pollution.

In addition, the present invention is another object to provide a sticker that is not broken and damaged even in a curved surface or bending after attachment, etc., the attachment is relatively easy.

According to a feature of the present invention for achieving the above object, the transfer paper layer is made of a transparent or translucent material is projected inside, the surface is provided with a non-adhesive surface treatment with the ink; A foam printing ink layer positioned on the surface of the transfer paper layer on which the surface is treated, and having a pattern expressed on an object to be bonded; An adhesive layer positioned on a bottom surface of the printing ink layer to impart adhesion to an object to be bonded; And a release paper layer located on the bottom of the pressure-sensitive adhesive layer; There is a technical point to provide a foam sticker consisting of.

And preferably, the foamed print ink layer is composed of a base print ink layer located on the bottom surface of the transfer paper layer and a foamed print ink layer positioned on the bottom surface of the base print ink layer and foamed with a foaming agent to show a three-dimensional shape. To lose.

On the other hand, another feature of the present invention, comprising a step of preparing a transfer paper layer is made of a transparent or translucent material projected inside, the surface is provided with a non-adhesive surface treatment; Printing a pattern, which is located on the surface of the transfer paper layer on which the surface is treated, expressed on the object to be bonded, with a foam printing ink; Naturally drying the foam printing ink; Placing a direct heat shield sheet on the surface of the naturally dried foam printing ink layer, and pressing and heating the sheet with a hot plate press to foam the foam printing ink layer to form a pattern; Forming a pressure-sensitive adhesive layer on the bottom surface of the foamed printing ink layer to impart adhesion to the object to be bonded; And forming a release paper layer on the bottom of the pressure-sensitive adhesive layer.

The printing with the foam printing ink may be performed by forming a base printing ink layer as a base, and applying a foam printing ink layer onto the surface after drying the base printing ink layer. In addition, the step of forming the pattern, the hot plate press to be pressed to a temperature of 120 to 150 ℃ for about 1 to 10 minutes.

Hereinafter, a sticker and a method of manufacturing the same according to the present invention having the above configuration will be described in detail with reference to the drawings showing preferred embodiments.

2 is a cross-sectional view showing the structure of a sticker according to the present invention. As shown, the sticker 100 according to the present invention includes a transfer paper layer 110, ink layers 120 and 130 on which a pattern is printed, an adhesive layer 140 having adhesive properties, and a backing paper layer 150.

First, the transfer layer 110 will be described. The transfer paper layer 100 is a substrate for the sticker 100 according to the present invention and at the same time serves as a pattern protection layer. The transfer paper layer 110 may be made of any kind of paper, film, etc., such as general imitation paper, art paper, or print. Since one side of the transfer paper layer 110 is formed, that is, a printed pattern should be formed on the lower surface of the transfer paper layer 110. It should be a non-adhesive surface treatment with printing ink. Such surface treatment is coated with a paraffin component or a silicone component used for general transfer paper. As the transfer surface is coated, the printing ink surface can be easily separated from the transfer paper layer surface even when a pattern by the printing ink is formed on the coating surface. On the other hand, the transfer layer 110 serves as a base material during the manufacturing operation of the sticker 100 according to the present invention and at the same time as it is finished when the product is completed to serve to protect the printing ink surface. The protective role of the transfer layer 110 will be described later. In addition, the transfer paper layer 110 is made of a transparent or translucent material, which is to determine the pattern by the ink layer located on the lower surface of the transfer paper layer (110).

Next, the back surface of the transfer paper layer 110, that is, the surface side of the coating treatment is provided with the print ink layer (120, 130) is engraved with the pattern. The printing ink layers 120 and 130 may be made of two kinds, and the base printing ink layer 120 and the expanded printing ink layer 130 having a three-dimensional effect may be formed. It is possible to simply consist of only the foam printing ink layer 130, but by mediating the background printing ink layer 120, it is possible to derive the shape of the three-dimensional pattern more clearly.

When the background printing ink layer 120 forms a variety of patterns, the background printing ink layer 120 forms a background color corresponding to the shape of the pattern, and thus, the general printing ink, that is, a polyurethane ink or a rubber ink may be used. The background printing ink layer 120 is directly printed on the lower surface of the transfer paper layer 110, that is, the coated surface, and may be printed in any form, such as monochromatic or multicolored. The printing may be any type of printing such as a general offset method or a screen, gravure method.

Next, the foamed printing ink layer 130 is to give a three-dimensional effect to the pattern to be expressed is an ink layer that gives a three-dimensional effect by containing a foaming agent in the ink and foamed by a constant temperature. The foaming agent used in the foamed printing ink layer 130 according to the present invention is a compound which is decomposed by heating with an azo-trifonyl hydride-based, nitrozo compound or the like to generate gas and foams, or a volatile liquid is thermoplastic. By mixing the bead encapsulated in the resin with the ink, a blowing agent or the like which breaks the beads by heat and foams by volatilization can be used. Since such foaming agents are usually foamed at a temperature of 100 to 200 ° C., a process of applying a separate heat during a pattern work using the actual foam printing ink layer 130 is required. The manufacturing method of the sticker using the foam printing ink layer 130 will be described later.

Next, the adhesive layer 140 will be described. The pressure-sensitive adhesive layer 140 is attached to the object to be attached to give an adhesive force will be sufficient if the pressure-sensitive adhesive component used in the general sticker manufacturing. In addition, the release paper layer 150 is also a release paper used in general sticker manufacturing, and a detailed description thereof will be omitted.

As described above, the foamed sticker 100 according to the present invention is that the adhesive layer 140 is directly bonded to the printing ink layers 120 and 130 without a separate substrate, and in use, the release paper layer 150 is peeled off. After the adhesive layer 140 is adhered to adhere to the target surface of the object to be adhered, the sticker is attached to the object to be peeled off by peeling off the transfer paper layer 110 provided on the upper surfaces of the printing ink layers 120 and 130. That is, in the present invention, only the pressure-sensitive adhesive layer 140 and the print ink layers 120 and 130 remain on the surface of the object to be bonded, and the printing ink layers 120 and 130 are submerged in the object to be bonded as a pattern without a separate description. .

Therefore, since there is no base layer such as conventional films, there is no concern of additional wrinkles or breakage, and even if the bending is severe, the flexible printed layers 120 and 130 may be evenly contacted due to contact with the object to be bonded. On the other hand, the transfer paper layer 110 is attached to the printing ink layer (120, 130) surface is peeled off after being completely contacted with the object to be bonded to prevent contamination such as foreign matter on the surface of the ink layer 120 during the contact operation of the sticker. In addition, before the sticker work, it will always serve as a substrate to protect the ink layer (120, 130) surface.

Next, the manufacturing process of the sticker according to the present invention will be described with reference to FIG. 3.

First, prepare the transfer layer. (I)

As described above, the transfer paper layer is paraffin or silicon coated on one surface or the bottom surface thereof so that the transfer paper layer is not bonded to the printing ink layer described later. The transfer paper layer serves as a protective substrate of the print ink layer.

Next, the required pattern is printed on the surface of the transfer layer. (II)

The print layer first prints a background print ink layer on which the background is printed, and the background print ink layer uses a general printing method such as a general screen offset gravure method. Then, the foam printing ink layer is printed on the upper surface of the base printing layer. After printing the desired pattern with the ink containing the blowing agent, the foam printing ink layer is naturally dried with a time of 10 minutes to 30 minutes at room temperature (15 to 25 ℃). The reason why the foam printing ink layer is dried at room temperature is that a desired pattern is fixed and a clean pattern is formed only when foaming is performed in the above state. When foamed before drying, the pattern is not properly formed, and when the hot air or the like is applied, deterioration of the foam printing ink layer occurs, so that the foaming ink layer is naturally dried with sufficient time for clean foaming.

Next, the pattern of the foam printing ink layer is foamed. (III)

In the state where the foam printing ink layer is sufficiently dried, a direct heat shield sheet is added on the printed layer surface, and a thermal printing operation is performed thereon to foam the foam printing ink layer. That is, as described above, since the foaming ink layer contains a foaming agent, and a pattern is formed by foaming of the foaming agent, in order to foam the foaming agent, a suitable temperature is about 100 to 200 ° C. according to the type of foaming agent contained. You need to add In the case of azo and nitrozo compounds, a temperature of about 100 to 120 ° C. is required, and when a volatile liquid is contained in the thermoplastic beads, a temperature of about 80 ° C. or more is required. In addition, indirect heat transfer should be made because the printing ink layer is deteriorated when the heat is applied but the direct heat is applied. That is, since the printing ink constituting the expanded printing ink layer or the ground printing ink layer is made of an organic compound, such high temperature causes deterioration of the ink component when it is in direct contact with the printing ink surface, thereby making it difficult to form patterns. Therefore, in order to avoid direct heat transfer, the direct heat shield sheet is placed on the surface of the foam printing ink layer, and then heat is transferred to the upper surface of the barrier sheet.

On the other hand, it is to use a hot plate press for the heat transfer. By using the hot plate press for about 1 minute to 10 minutes, the heat transfer is performed simultaneously with the pressurization for about 2 minutes to 3 minutes. Therefore, the heat applied by the hot plate press is conducted to the direct heat shield sheet, and the conducted heat causes the foaming agent component contained in the foam printing ink layer to foam, but is fully expanded by pressurization by the hot plate press. It is not true. As described above, after a predetermined time has elapsed by the hot plate press, foaming of the foaming agent is performed as the press is removed, thereby forming a pattern of the foam printing ink layer having a predetermined height.

As described above, foaming of a certain height is made by pressurizing and heating the hot plate press, and the foam printing ink layer surface of the hot plate press surface side can be made flat. As one surface of the printing ink layer surface becomes flat as described above, even adhesion of the pressure-sensitive adhesive component may be performed on the flat surface. On the other hand, the foaming degree of the foamed printing ink layer can be controlled by controlling the amount of the foaming agent to be contained.

Adhesive coating (Ⅳ) and release paper attachment (Ⅴ)

After the foam printing ink layer is foamed, the foamed layer upper surface is made flat so that an adhesive component for contacting the adherend on the flat surface is applied.

The pressure-sensitive adhesive component should be attached to the object to be bonded, and should also have sufficient defect force with the printing ink layer surface. Since the type of the adhesive is conventionally used in the manufacture of stickers according to the type of sticker, that is, the strong or weak adhesive, or the object of the adherend, that is, the synthetic fiber, the natural fiber, or the paper, it is no longer detailed. The description will be omitted. In addition, the release paper is applied onto the pressure-sensitive adhesive surface, and the application of the release paper is a release paper generally used for the manufacture of a sticker, and a detailed description thereof will be omitted.

As described above, according to the present invention, the following effects are obtained.

Since the adhesive is directly bonded to the printing ink layer surface, a separate substrate layer, such as a film, is unnecessary, thereby preventing wrinkles or breakage of the sticker even on a curved surface or a wrinkled object.

In addition, since there is no substrate such as fibish or FT ink, there are other effects that do not cause environmental pollution.

Claims (5)

A transfer paper layer formed of a transparent or translucent material to which the inside is projected, and having a surface treated with a non-adhesive surface with ink; A foam printing ink layer positioned on the surface of the transfer paper layer on which the surface is treated, and having a pattern expressed on an object to be bonded; An adhesive layer positioned on a bottom surface of the printing ink layer to impart adhesion to an object to be bonded; And A release paper layer positioned on the bottom of the pressure-sensitive adhesive layer; Foam sticker, characterized in that consisting of. The method of claim 1, wherein the foam printing ink layer, A base printing ink layer located on the bottom of the transfer layer, A foaming sticker, characterized in that the foaming ink is located on the bottom of the base printing ink layer, the foaming agent is foamed to show a three-dimensional shape. Preparing a transfer paper layer having a surface which is made of a transparent or translucent material to which the inside is projected, and which has a surface treatment that is non-adhesive with ink; Printing a pattern, which is located on the surface of the transfer paper layer on which the surface is treated, expressed on the object to be bonded, with a foam printing ink; Naturally drying the foam printing ink; Placing a direct heat shield sheet on the surface of the naturally dried foam printing ink layer, and pressing and heating the sheet with a hot plate press to foam the foam printing ink layer to form a pattern; Forming a pressure-sensitive adhesive layer on the bottom surface of the foamed printing ink layer to impart adhesion to the object to be bonded; And Forming a release paper layer on the bottom of the pressure-sensitive adhesive layer; Foam sticker manufacturing method comprising a. The method of claim 3, wherein the step of printing with a foam printing ink, Forming a base printing ink layer as a base, and drying the base printing ink layer, and then applying a foam printing ink layer on the surface of the foam sticker manufacturing method, characterized in that. The method of claim 3, wherein forming the pattern comprises: Method for producing a foamed steam, characterized in that for pressurizing at a temperature of 120 to 150 ℃ for about 1 to 10 minutes by hot plate press.

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