Anti-skid heat transfer film

Abstract

The utility model discloses an anti-slip heat transfer printing film which comprises a base layer, a release layer and a printing layer, a plurality of protruding parts protruding downwards are arranged on the base layer, the release layer is arranged on the upper side of the base layer in an attached mode, and the printing layer is arranged on a part of the upper side of the release layer in an attached mode. A printing machine prints patterns on the release layer to form a printing layer. Friction force between the base layer and a printing table is improved through the protruding parts on the lower side face of the base layer, so that the probability that defective products are printed on the printing table in a sliding mode through the heat transfer film is reduced, and batch production of the heat transfer film is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of heat transfer films, in particular to an anti-slip heat transfer film. Background Art

[0002] Thermal transfer printing methods are divided into two major parts: thermal transfer film printing and transfer processing. Thermal transfer film printing uses dot printing to pre-print the pattern on the film surface. The printed pattern is rich in layers, bright in color, ever-changing, with minimal color difference and good reproducibility, which can meet the designer's requirements and is suitable for mass production. Transfer processing uses a thermal transfer machine to transfer the exquisite pattern on the thermal transfer film to the product surface in a single process (heating and pressurizing). After forming, the ink layer blends with the product surface, creating a realistic and beautiful effect, greatly improving the product's grade.

[0003] Among them, during the printing process of thermal transfer film, the film to be printed needs to be aligned with the printing position, but the surface of the existing film is relatively smooth, and it is easy to slip on the printing platform during printing, resulting in blurred and distorted printed patterns and defective products, which is not conducive to the production of thermal transfer film. Utility Model Content

[0004] The purpose of the utility model is to provide an anti-slip heat transfer film, which increases the friction between the heat transfer film and the printing table through several protrusions on the lower side of the base layer, thereby reducing the probability of the heat transfer film sliding on the printing table and printing defective products, which is beneficial to the mass production of heat transfer films.

[0005] The technical solution adopted by the present invention to solve the above problems is:

[0006] An anti-slip heat transfer film includes a base layer, a release layer and a printing layer. The base layer is provided with a plurality of downwardly protruding protrusions, the release layer is laminated on the upper side of the base layer, and the printing layer is laminated on a portion of the upper side of the release layer. A printing machine prints a pattern on the release layer to form a printing layer.

[0007] In the above technical solution, preferably, the protrusions are formed by plastic extrusion of the base layer, the protrusions are in a strip structure in the front-to-back direction, and a plurality of protrusions are distributed on the base layer at equal intervals in the left-to-right direction.

[0008] In the above technical solution, preferably, the lower side of the release layer is always in contact with the upper side of the base layer and the upper side of the protrusion, and the upper side of the release layer is a plane.

[0009] In the above technical solution, preferably, an adhesive layer is provided on the upper side of the printing layer and the upper side of the release layer.

[0010] In the above technical solution, preferably, the base layer is made of polyethylene terephthalate (PET).

[0011] In the above technical solution, preferably, the adhesive layer is made of hot melt adhesive.

[0012] Compared with the prior art, the present invention has the following advantages and effects:

[0013] During the printing process of the thermal transfer film of the present invention, the lower side of the base layer contacts the printing table, and the friction between the base layer and the printing table is increased by the multiple protrusions on the lower side of the base layer, thereby reducing the probability of the thermal transfer film sliding on the printing table during printing, and can reduce the probability of printing defective products, which is conducive to the mass production of thermal transfer films. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural cross-sectional view of the anti-slip thermal transfer film according to an embodiment of the present invention.

[0015] Figure 2 It is a schematic diagram of the manufacturing method of the raised portion in the embodiment of the present utility model.

[0016] Among them, there are a base layer 1 , a protruding portion 11 , a release layer 2 , a printing layer 3 , an adhesive layer 4 , a squeezing roller 5 , a protrusion 51 , and a groove 52 . DETAILED DESCRIPTION

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0018] See also Figure 1-Figure 2 This embodiment provides an anti-slip thermal transfer film, including a base layer 1, a release layer 2 and a printing layer 3. The base layer 1 is provided with a plurality of downwardly protruding protrusions 11, the release layer 2 is laminated on the upper side of the base layer 1, and the printing layer 3 is laminated on a part of the upper side of the release layer 2. The printing machine prints a pattern on the release layer 2 to form the printing layer 3.

[0019] In the present invention, a release layer 2 is provided on the upper side of the base layer 1, and a pattern is printed onto the release layer 2 by a printing machine to form a printed layer 3. The release layer 2 is heated during transfer to separate from the base layer 1, so that the printed layer 3 can be separated from the base layer 1 and attached to the product. The release layer 2 can also protect the printed layer 3.

[0020] During the printing process of the thermal transfer film, the lower side of the base layer 1 contacts the printing table, and the friction between the base layer 1 and the printing table is increased by the several protrusions 11 on the lower side of the base layer 1, thereby reducing the probability of the thermal transfer film sliding on the printing table during printing, and can reduce the probability of printing defective products, which is beneficial to the mass production of thermal transfer films.

[0021] See also Figure 1 、 Figure 2 The protrusions 11 are formed by plastic extrusion of the base layer 1. The protrusions 11 are in a strip-shaped structure in the front-to-back direction. Several protrusions 11 are evenly spaced on the base layer 1 in the left-to-right direction.

[0022] The base layer 1 is usually a plastic film formed by stretching and stretching a plastic film through a tenter machine in a heated state. At this time, the base layer 1 is kept heated and can be introduced into the upper and lower squeezing rollers 5. The two squeezing rollers 5 are respectively provided with strip protrusions 51 and grooves 52 that are adapted to the shape of the protrusions 11. When the extrusion is completed, the base layer 1 is cooled and shaped, thereby continuously producing the protrusions 11 on the base layer 1. The equipment structure and steps used in this production method are relatively simple, which can reduce the difficulty of producing the protrusions 11 on the base layer 1, thereby facilitating mass production of the present invention.

[0023] See also Figure 1 The lower side of the release layer 2 is always in contact with the upper side of the base layer 1 and the upper side of the protrusion 11, and the upper side of the release layer 2 is a plane.

[0024] In the present invention, the release layer 2 is a release agent coating. After the base layer 1 is produced, the release agent is applied to the base layer 1 to form the release layer 2. The release agent can be filled into the upper side surface of the protrusion 11 to provide a certain support for the protrusion 11, thereby reducing the probability of the protrusion 11 being deformed under the pressure of the print head during printing, thereby reducing the probability of the anti-slip effect being reduced. At the same time, after the release agent is applied to form the release layer 2, the upper side surface of the release layer 2 is flat, thereby facilitating the printing machine to print patterns on the release layer 2 and ensuring the flatness of the pattern.

[0025] See also Figure 1 The upper side of the printing layer 3 and the upper side of the release layer 2 are laminated with an adhesive layer 4.

[0026] The adhesive layer 4 has a certain viscosity, which makes it easy to adhere the utility model to the surface of the product to be printed during transfer, so that the printed layer 3 can be attached to the product after heating. The adhesive layer 4 can reduce the occurrence of sliding and dislocation between the printed layer 3 and the product during transfer after the printing layer 3 is bonded, resulting in distortion and damage of the pattern.

[0027] The base layer 1 is made of polyethylene terephthalate (PET).

[0028] PET has the characteristics of good dimensional stability, uniform tension, and good release properties, and is suitable for the base layer 1 of the thermal transfer film. At the same time, it has good wear resistance, which can reduce the damage of the thermal transfer film during production, transportation and transfer, and reduce the cost loss caused by damage.

[0029] The adhesive layer 4 is made of hot melt adhesive. The adhesive layer 4 covering the upper surface of the release layer 2 and the printing layer 3 has excellent composite fastness and outstanding flexibility, is resistant to abrasion, and has strong resistance to media such as water and acid and alkali, and has good weather resistance. It can provide good protection for the release layer 2 and the printing layer 3, thereby improving the service life of the utility model.

[0030] The above contents described in this specification are merely examples of the present invention. Those skilled in the art of the present invention may make various modifications, additions, or substitute similar methods to the specific embodiments described, as long as they do not deviate from the contents of this specification or exceed the scope defined by the claims, and shall fall within the scope of protection of the present invention.

Claims

1. An anti-slip thermal transfer film, characterized by: It includes a base layer, a release layer and a printing layer. The base layer is provided with a plurality of downwardly protruding protrusions. The release layer is attached to the upper side of the base layer. The printing layer is attached to a part of the upper side of the release layer. The printing machine prints a pattern on the release layer to form a printing layer.

2. The anti-slip thermal transfer film according to claim 1, characterized in that: The protrusions are formed by plastic extrusion of the base layer. The protrusions are in a strip-shaped structure in the front-to-back direction. A plurality of protrusions are distributed on the base layer at equal intervals in the left-to-right direction.

3. The anti-slip thermal transfer film according to claim 1, wherein: The lower side of the release layer is always in contact with the upper side of the base layer and the upper side of the protruding portion, and the upper side of the release layer is a plane.

4. The anti-slip thermal transfer film according to claim 1, wherein: An adhesive layer is provided on the upper side of the printing layer and the upper side of the release layer.

5. The anti-slip thermal transfer film according to claim 1, wherein: The material of the base layer is polyethylene terephthalate (PET).

6. The anti-slip thermal transfer film according to claim 4, characterized in that: The adhesive layer is made of hot melt adhesive.

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