TWI660861B - Film thermal transfer process and its finished structure - Google Patents

Abstract

The invention relates to a film thermal transfer process and a finished structure thereof. The printing surface of a long strip of film is coated with a layer of screen printing glue, and then a laminating hot wheel having a temperature of 85 ° C to 160 ° C is applied. The ink on the thermal transfer mold is transferred to the printing surface of the film, and a cooling wheel is finally set on the non-printing surface of the film, and then the completed thermal transfer film is cooled, so that the full version, The pattern, pattern or text is thermally transferred to the printing surface of the film to form a printed layer, which can also be transferred to the film by hot pressing, so that the outer surface of the film can exhibit a simulated metallic luster.

Description

Film thermal transfer process and its finished structure

The present invention relates to a printing process, in particular to a technical category in which the film can be heat-pressed to be transferred, and then a full plate, a pattern, a pattern, or a character can be thermally transferred to the outer surface of the film.

According to the two ends of shoelaces, webbings, or straps generally made of weaving threads, after the two ends must be cut, the two ends will show scattered thread ends, which is quite ugly and easy to damage the belt body. The cut ends of the shoelace, webbing or lifting strap are respectively sleeved with a plastic tube or a metal tube to form a shoelace head, a webbing head or a lifting head.

However, in order to show the plating effect of the aforementioned shoe lace head, webbing head or lifting head, only the metal head or the ABS head (Acrylonitrile Butadiene Styrene) can be used for the plating of the outer surface, and the former two processes require a lot of manual labor That is, it is necessary to use a film head first and then pierce the metal head or ABS head to press and bond, which has a complicated process and high manufacturing cost.

Alternatively, it is also possible to use a metal-like effect ink for screen printing of a film, but this ink cannot achieve the brightness of a transfer film.

For this reason, in view of the problem of the conventional metal plating method for shoelace heads, webbing heads or lifting heads, the inventor has invented a film thermal transfer process and its finished structure. Therefore, the main purpose of the present invention is to provide shoelace A film thermal transfer process with a relatively simple process and a relatively simple process on the outer surface of the webbing or lifting head and its finished structure; the secondary object of the present invention is to improve the printing layer A film thermal transfer process and its finished structure attached to the strength of the film; another object of the present invention is to provide a film thermal transfer process and its finished structure that improve color saturation and make the printing effect of the film better; Another object of the present invention is to provide a film thermal transfer process for improving the flatness of the CA product after the hot-press transfer process and a structure of the finished product.

In order to achieve the above object, the present invention uses the following technical means: The present invention relates to a film thermal transfer process, including: a film pre-processing step, roughening the printing surface of the film, and allowing the printing of the film The surface has a rough surface; a film-coated screen printing glue step is applied to the printing surface of a long film with a layer of screen printing glue; a film thermal transfer step is to have a temperature of 85 degrees C to 160 The pressing heat roller of degree C transfers the ink on the thermal transfer mold to the printing surface of the film; and a film cooling step is provided with a cooling wheel placed on the non-printing surface of the film, and then the completed heat The transferred film is cooled; by the above steps, the required pattern (can be full-frame, text, LOGO, line) is printed on the acetate fiber (CA) film by using the characteristics of screen printing hot melt and screen printing ink. Then use the temperature between 85 degrees and 160 degrees to heat and press (temperature depends on the characteristics of the transfer film), using the hot melt characteristics, pull the required pattern away from the transfer film to complete the transfer operation.

In the film thermal transfer process, the film pre-processing step further includes a film corona processing step, wherein the film corona processing step is to corona the printed surface of the film to produce a roughened surface.

In the film thermal transfer process, the film pre-processing step further includes a net electricity elimination step, which can perform static elimination treatment on the film.

In the film thermal transfer process, the film is made of cellulose acetate.

In the film thermal transfer process, the centers of the pressing heat wheel and the cooling wheel are offset from each other by 1 mm to 3 mm.

A thermal transfer finished product made by the film thermal transfer process is to form the film into several hollow tube bodies, and the outer surface of each hollow tube is represented by the printed layer.

With the above technical means, the present invention can achieve the following effects:

1. The process of the present invention only needs to process the film with a simulated metal effect using a shoelace heading machine. The advantages are fast production speed and light weight. Compared with metal heads and ABS heads, because of its light weight, Greatly reduce the risk of shoelaces falling when walking, and improve safety when walking.

2. The acetate fiber (CA) film of the present invention has poor fastness due to hot melt and screen printing glue, so before printing, we corona treat the printing surface of the acetate fiber (CA) to improve the printing layer. Adhesiveness.

3. In the present invention, a net electricity elimination step is performed before the transfer operation, which can prevent incomplete and misaligned transfer of the transfer film, and improve the color saturation and brightness of the finished product.

4. In the process of the present invention, a cooling wheel is added at a distance of about 2 mm after the hot-press transfer, so that the acetate fiber (CA) material is rapidly cooled and cooled before being deformed, and the flatness of the finished product of the acetate fiber (CA) is improved.

A‧‧‧ Film thermal transfer process

a, b, c, d‧‧‧ steps

B‧‧‧ hollow tube

D‧‧‧distance

1‧‧‧ film

2‧‧‧Screen Printing Adhesive

3‧‧‧Compression Hot Wheel

31‧‧‧heater

4‧‧‧heat transfer mold

41‧‧‧Ink

42‧‧‧ Placement Wheel

43‧‧‧Storage Wheel

5‧‧‧ cooling wheel

6‧‧‧ net electric eliminator

60‧‧‧Corona Processor

61‧‧‧Screen printing device

7‧‧‧print layer

8‧‧‧ laces, webbing or straps

FIG. 1 is a flowchart of the steps of the film thermal transfer process of the present invention.

FIG. 2 is a schematic diagram of a device for a film thermal transfer process of the present invention.

FIG. 3 is an exploded view of a product made by the process of the present invention.

FIG. 4 is a cross-sectional view of a product made by the process of the present invention.

First, please refer to FIG. 1 and FIG. 2. The present invention relates to a film thermal transfer process and a structure of a finished product thereof. The most important thing is to form a full plate, a pattern, a pattern, or a character by thermal transfer to the printing surface of the film 1. A printed layer 7 that provides a rich change in the outer surface of the shoe lace head, webbing head or lifting head. The outer surface of the film 1 can be made to exhibit a simulated metallic luster. In particular, cellulose acetate may be used for the film 1.

The film thermal transfer process A includes: a film pre-processing step (a), a film coating screen printing glue step (b), a film thermal transfer step (c), and a film cooling step (d). ), As shown in Figure 1.

Further, as shown in FIG. 2, the film pre-processing step (a) further includes a film corona processing step and a net electrical elimination step; wherein the film corona processing step is performed by a corona processor 60 on the film. The printed surface of the film 1 is corona treated to make the printed surface of the film a rough surface, thereby improving the adhesion of the film 1 during printing, and the net electricity elimination step is performed by a static eliminator 6 The film 1 is subjected to a static elimination treatment before printing to prevent incomplete transfer and misalignment of the transfer film, and can improve the color saturation and brightness of the finished product.

Continuing, please perform step (b) of the film coating screen printing glue according to FIG. 2, and apply a layer of screen printing on the film 1 with a screen printing device 61 on the printing surface of a long film 1. Glue 2, and the screen printing glue 2 can also improve the printing adhesion of the film 1.

Continuing, please perform the thermal transfer step (c) of the film in accordance with FIG. 2. A thermal transfer film 4 is placed between the placement wheel 42 and the storage wheel 43, and then the temperature is 85 ° C. The pressing heat roller 3 to 160 ° C will press against the back of the heat transfer mold 4 so that the ink 41 on the front side can be transferred to the printing surface of the film 1; that is, inside the pressing heat roller 3 A heater 31 is provided, and the heater 31 can heat the laminated heat wheel 3, and the heat transfer film 4 can be hot-pressed by the laminated heat wheel 3; The film cooling step (d) is provided with a cooling wheel 5 placed on the non-printing surface of the film 1, and then cooling the heat-transferred film 1 line; in particular, the compression heat wheel 3, cooling The centers of the wheels 5 are offset from each other by a distance D of 1 mm to 3 mm, where the distance D It is better to be 2mm apart. In other words, the cooling wheel 5 allows the film 1 to rapidly cool down before being deformed, thereby improving the flatness of the finished film 1.

The above-mentioned steps constitute the film thermal transfer process A of the present invention. The most important use of the characteristics of screen printing hot melt and screen printing ink is to make the required pattern (can be full version, text, LOGO, line) in acetate fiber (CA ) On the film, and then heat-pressed between 85 ° and 160 ° (the degree depends on the characteristics of the transfer film) and use the heat-dissolving property to pull the required pattern away from the transfer film to complete the transfer operation.

Please refer to FIG. 3 and FIG. 4. A film thermal transfer finished product made by the transfer process A of the present invention is to form the film into a plurality of hollow tube bodies B and the surfaces of each hollow tube body B. That is, the printed layer 7 is presented, and the hollow tube body B is sleeved on the shoelace, webbing or lifting strap 8 to obtain a shoelace head, a webbing head or a lifting head that simulates a metallic luster.

To sum up, the "film thermal transfer process and the structure of the finished product" of the present invention has not been found in books or publications, and its structure is in line with the requirements of patent applications. For those who need to be clear, the above are the specific examples and technical principles used in this case. If the changes are made according to the concept of this case, the functions and functions produced by them will not exceed the spirit covered by the description and drawings. At the same time, they should all be submitted to Chen Ming within the scope of the patent application requested in this case.

Claims (5)

A film thermal transfer process includes: a film pre-processing step for roughening the printing surface of the film so that the printing surface of the film has a rough surface; a film coating step for screen printing glue. A layer of screen printing adhesive is coated on the printing surface of a long strip of film; a film thermal transfer step involves pressing a heat roller with a temperature of 85 ° C to 160 ° C to transfer the ink on the thermal transfer mold. Printed on the printing surface of the film; and a film cooling step, a cooling wheel is provided on the non-printing surface of the film, and then the thermally-transferred film is cooled; The centers of are offset from each other by 1mm ~ 3mm; through the above steps, a full plate, pattern, pattern or text can be thermally transferred to the printing surface of the film to form a printing layer. As described in claim 1, the film pre-treatment step further includes a film corona treatment step, wherein the film corona treatment step is to corona the printed surface of the film to produce a roughened surface. According to the film thermal transfer process described in claim 2, the film pre-processing step further includes a net electricity elimination step, which can perform static elimination treatment on the film. The film thermal transfer process according to claim 1, wherein the film is made of cellulose acetate. A thermal transfer product made by the film thermal transfer process according to any one of claim 1 to claim 4, is to form the film into several hollow tube bodies, and the outer surface of each hollow tube is The printed layer is rendered.