CN202480586U

CN202480586U - Thermal transfer film provided with protective structure layer

Info

Publication number: CN202480586U
Application number: CN2012201110984U
Authority: CN
Inventors: 符维强; 倪阳; 李步龙
Original assignee: XIAMEN HOWER MATERIAL CO Ltd
Current assignee: XIAMEN HOWER MATERIAL CO., LTD.
Priority date: 2012-03-22
Filing date: 2012-03-22
Publication date: 2012-10-10
Anticipated expiration: 2022-03-22

Abstract

The utility model discloses a thermal transfer film provided with a protective structure layer. The thermal transfer film provided with the protective structure layer comprises a basement layer, a mold layer, an ink layer or a pattern layer and a hot melt glue line, and is characterized in that an intermediate layer is further arranged between the mold layer and the ink layer or the pattern layer. One intermediate layer is added in the four-layer type thermal transfer film, and therefore the shortcomings such as possible poor spreadability of the mold layer and the ink layer, inadequate drying time of ink and patterns prone to dropping after transfer are changed. The intermediate layer can be perfectly combined with the mold layer, enables the ink to be completely paved on the surface of the intermediate layer and protects the ink not completely drought and transferred patterns, and therefore greatly reduces defective percentage of thermal transfer patterns and production cost.

Description

A kind of heat transfer film that is provided with the protection structure sheaf

Technical field

The utility model relates to hot transfer printing field, particularly a kind of heat transfer film that is provided with the protection structure sheaf.

Background technology

Hot transfer technique is meant the pattern on the heat transfer film is transferred to the technology on the stock through heating and pressurizing.At present, heat transfer film mainly contains silk-screen and 2 kinds of modes of offset printing in process of production, and wherein, offset printing replaces silk-screen gradually, thereby improved production efficiency greatly because its speed is far longer than silk-screen, has reduced production cost.

The heat transfer film of silk-screen generally is the four-layer structure formula, is respectively basic unit, release layer, ink lay or patterned layer, hot melt adhesive layer (seeing accompanying drawing 1).The manufacturing enterprise of heat transfer film is the effect of pattern after the decision of the difference through the mould release transfer printing generally, and its main operation principle is, utilizes the mode of heating and pressurizing, makes pattern to be bonded on the stock PUR fusion; And release layer plays the effect that separates basic unit and ink lay under heating condition, thereby accomplishes hot transfer process.

The four laminar heat transfer films that generally use are now facing under the widely used situation of offset printing; Be difficult to satisfy its print speed printing speed efficiently; Mainly there is following problem in it: (1) is because the release characteristic of release layer; Printing ink and release layer caking property are not good enough during the pattern printing, cause it to be difficult to sprawl fully, influence the pattern printing effect; (2) offset printing speed is very fast, and basic no time enough is dry behind the ink printing, just gets into next program, causes the pattern of printing unsmooth; The heat transfer film of (3) offset printing mode is after transfer printing, and the surface is more crisp, not water-fastly washes, is prone to come off.

Summary of the invention

To the problems referred to above, the purpose of the utility model is to design a kind of defect rate that reduces thermally transferred pattern of protecting, and reduces the heat transfer film that is provided with the protection structure sheaf of production cost.

For achieving the above object; The technical scheme that the utility model proposed is: a kind of heat transfer film that is provided with the protection structure sheaf; Comprise basic unit, release layer, ink lay or patterned layer, hot melt adhesive layer, it is characterized in that: also be provided with an intermediate layer between described release layer, ink lay or patterned layer.

Preferably, described intermediate layer is release polishes, mainly plays preventing ink penetration, strengthens release effect, the effect of protection pattern.

The utility model increases one deck intermediate layer with four laminar heat transfer films; Change that the spreadability that release layer and ink lay may occur is not good, shortcomings such as pattern is prone to come off after ink setting deficiency of time and the transfer printing; And the intermediate layer can with intact the combining of release layer, and make printing ink spread over its surface fully, and can protect the not printing ink of bone dry and the pattern after the transfer printing; Thereby reduce the defect rate of thermally transferred pattern greatly, lower production cost.

Description of drawings

Fig. 1 is the basic block diagram of prior art heat transfer film;

Fig. 2 is the basic block diagram of the described heat transfer film of the utility model;

Wherein: 1. basic unit, 2. release layer, 3. ink lay or patterned layer, 4. thermosol glue-line, 5. intermediate layer.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment, the utility model is further specified.

As shown in Figure 2, a kind of heat transfer film that is provided with the protection structure sheaf comprises basic unit 1 successively, and basic unit 1 can adopt thin-film materials such as PP, PET, PVC, PA6, mainly plays the carrying effect; Release layer 2, release layer 2 can adopt wax or liquid mould release, and it mainly plays the effect that separates basic unit 1 and ink lay or patterned layer; Intermediate layer 5 is a kind of novel release polishes, mainly plays preventing ink penetration, strengthens release effect, the effect of protection pattern; Ink lay or patterned layer 3 can adopt the different pattern of multiple inks printing, are the final products after the hot transfer printing; Hot melt adhesive layer 4 mainly is in the process of hot transfer printing, and ink lay or patterned layer 3 are transferred to the connector on the stock.

During concrete operations; At first be that release layer 2 is coated in the basic unit 1 through coating machine; After treating its bone dry, again the surface that is coated in release layer 2 is in the same way adopted in intermediate layer 5, treat intermediate layer 5 dryings equally after; Use offset printing with ink lay or patterned layer 3 printings to the intermediate layer 5 surface, thermosol glue-line 4 is printed to ink lay or patterned layer 3 get final product at last.

Increase the release polishes of one deck intermediate layer 5 between the release layer 2 of four laminars that the utility model uses prior art and ink lay or the patterned layer 3, thereby satisfy the print speed printing speed of offset printing, guarantee the quality of production of heat transfer film.

Although specifically show and introduced the utility model in conjunction with preferred embodiment; But the those skilled in the art should be understood that; In the spirit and scope of the utility model that does not break away from appended claims and limited; In form with on the details the utility model is made various variations, be the protection domain of the utility model.

Claims

1. a heat transfer film that is provided with the protection structure sheaf comprises basic unit, release layer, ink lay or patterned layer, hot melt adhesive layer, it is characterized in that: also be provided with an intermediate layer between described release layer, ink lay or patterned layer.