KR0121068Y1 - Thermal transfer paper with gas outlet - Google Patents

Abstract

The present invention relates to an improvement of a thermal transfer paper having a gas discharge hole.

The thermal transfer paper 10 proposed by the applicant in the patent application 94-29289 is formed by adhering the base paper 6 with the adhesive 8 on the back side of the earth 2 on which the thermal transfer ink 4 is deposited. Although, there is an advantage that it is possible to easily produce the advertisement pattern by the thermal transfer method without dyes (paint), but the heat resistance temperature of the adhesive 8 is lower than the thermal transfer temperature, so that a part of the adhesive 8 is melted and sublimed to generate gas. Therefore, a partial bubble layer is formed between the ground 2 and the ground 6 so that the transfer heat is unevenly transferred to the thermal transfer ink 4 so that a transfer failure occurs.

The present invention forms a plurality of minute diameter gas discharge holes 12 penetrating the rear surface and the surface of the thermal transfer paper 10 at a narrow interval so that the heat of melting and sublimation from the pressure-sensitive adhesive during thermal transfer is quickly discharged This uniformly inverted to achieve a good transfer operation.

Description

Thermal transfer paper with gas outlet

Figure 1: A perspective view of a part of the transcript cut out

Figure 2: partial cross-sectional view of the present invention

Figure 3: Cross-sectional view of a bubble layer formed on a conventional thermal transfer paper

* Explanation of symbols for main parts of the drawings

2: Mount 4: Thermal transfer ink

6: background 8: adhesive

10: heat transfer paper 12: gas discharge hole

The present invention relates to an improvement of a heat transfer paper for producing an advertisement, and in particular, a gas discharge hole is drilled on the heat transfer paper at predetermined intervals so that the gas generated during the thermal transfer is rapidly accumulated, thereby making a good transfer operation.

Applicant's patent application No. 94-29289, the transfer paper for producing the banner and the method of manufacturing the banner using the transfer paper allow the conventional advertisement design, which was represented by liquid dyes (paints), to be easily produced by thermal transfer. Limb prints thermal transfer ink on the surface of the smoothly coated earth so that it can be easily separated during thermal transfer. It is made by adhering the parts, cutting the cutting paper by cutting the plotter (cutting floppy) to form a desired advertisement pattern, but not cutting the base paper, and then removing unnecessary parts other than the advertisement pattern and processing the transfer paper. After placing on the surface of the heat transfer device that emits heat around 150 ℃ around a predetermined time (several seconds to several tens of seconds) by heating and pressing When thermodeposited on the transfer material, the ground and backing paper are removed to complete the desired advertisements.They do not use liquid dyes or additives (pigments, diluents, polishes, etc.). There is no concern, it is easy to produce multi-colored and various advertising patterns, there is almost no odor occurs, the working conditions are greatly improved, the work efficiency is doubled.

On the other hand, the heat resistance of the pressure-sensitive adhesive positioned between the base and the ground in the thermal transfer paper is lower than the required transfer heat (about 150 ° C. or less), so that the components of the pressure-sensitive adhesive 18 are transferred by transfer heat (about 150 ° C. and before). As a part of the (acrylic monomer and catalyst) is melted and sublimed, gas is generated, thereby forming a partial bubble layer 24 between the ground 20 and the ground 22 as in the third degree.

Since the bubble layer 24 functions as a heat insulating layer, it prevents heat conduction from the heat transfer plate 26 to the thermal transfer ink 28, and thus, up to a portion of the thermal transfer ink 28 located at the bottom of the bubble layer is transferred to the transfer. Since the required amount of heat is not sufficiently transmitted, thermal conductivity and non-uniformity of thermal transfer are caused, so that a transfer failure occurs. If the thermal transfer plane is large, this phenomenon is further expanded.

The pressure-sensitive adhesive having a heat resistance higher than the transfer temperature can be used as a means to solve the above problems, but it is not preferable because the price is expensive and the manufacturing process is additionally required to increase the production cost.

The present invention aims to discharge the gas generated during thermal transfer by drilling a gas discharge hole in the thermal transfer paper in order to solve such problems.

In order to achieve the above object, a gas discharge hole is formed at predetermined intervals of the thermal transfer paper, and the diameter thereof is formed fine so that the thermal transfer ink is not damaged or the scar remains on the thermally transferred surface.

Since the formation diameter of the gas discharge hole is minute, it is preferable to form the gas discharge holes at narrow intervals so that the generated gas can be discharged quickly.

In addition, the discharge hole may be formed only to the surface or the rear surface of the thermal transfer paper, but preferably penetrates the surface and the rear surface of the thermal transfer paper so that the generated gas is quickly discharged to both sides.

Hereinafter, described in detail with reference to the accompanying drawings a preferred embodiment of the present invention.

In a first or partial cutaway perspective view of the present invention, the thermal transfer ink 4 is printed and deposited on the surface of the earth 2, and the base 6 is bonded to the back surface of the earth 2. In the thermal transfer paper bonded to 8), gas discharge holes 12 having a small diameter penetrating the front and rear surfaces of the thermal transfer paper 10 are formed at predetermined intervals.

In the above, the diameter of the gas discharge hole 12 is preferably formed in a size of about 0.1 mm so that the thermal transfer ink 4 is not damaged or scars remain on the thermally transferred surface. It is preferable to form at intervals before and after 10 mm to 20 mm so as not to.

The gas discharge hole (2) is formed by passing between the rotary roller (not shown) having a needle protrusion of the diameter and the interval of the gas discharge hole 12 on the outer surface, pressurized by a press formed with the needle protrusion or laser It can be formed using a processing method or the like.

Unexplained code

14, 28 is a coating layer

30 silver backing plate

32 is the transcript.

The present invention constructed as described above is to cut the thermal transfer paper 10 to form a desired advertising pattern with a cutting plotter (not shown), and then remove unnecessary parts other than the desired pattern, but not the base 6 Therefore, the desired pattern is processed to adhere to the base paper 6, and then the thermal transfer ink 4 surface is placed in contact with the surface of the transfer object (not shown), and then the heat transfer plate is heated for a predetermined time (several seconds to several tens of seconds). When heated and pressurized, the transfer heat of the heat transfer plate is transferred to the thermal transfer ink 4 through the base paper 6, the adhesive 8, and the earth 2, and the advertisement pattern of the thermal transfer ink 4 is transferred to the transfer member. Transfer and deposition (electrodeposition) are the same as in the prior art.

At this time, since the transfer heat is conducted through the pressure-sensitive adhesive 8 having low heat resistance, some of the components of the pressure-sensitive adhesive 8 are melted and sublimed by thermal action, so that gas is generated. Since the limb 10 is discharged to the outside, the bubble layer as in the prior art is not formed.

Therefore, the transfer heat is uniformly conducted to the thermal transfer ink 4 so that partial thermal transfer failure is prevented, so that quality defects are eliminated.

Since the gas discharged to the discharge hole 12 is smoothly discharged through the contact space between the base plate 6 and the heat transfer device of the thermal transfer apparatus and the ground 2 and the support plate, there is no big problem, and the support plate on which the transfer object is placed is provided. In the case of the cushioning material having such fine pores, the gas is further promoted.

As described above, the present invention has a good thermal transfer effect because the gas generated during thermal transfer is quickly discharged by the gas discharge hole formed in the thermal transfer paper.

Claims (2)

In the thermal transfer paper on which the thermal transfer ink 4 is printed on the surface of the earth 2 and the base 6 is adhered to the back surface of the earth 2, a gas discharge hole having a fine diameter on the thermal transfer paper 10 ( A thermal transfer paper having a gas discharge hole formed by forming 12) at predetermined intervals. The thermal transfer paper according to claim 1, wherein the diameter of the gas discharge hole (12) is about 0.1 mm, and the interval is 10 mm to 20 mm.