CN212529090U

CN212529090U - Printable water rendition membrane

Info

Publication number: CN212529090U
Application number: CN202022004587.7U
Authority: CN
Inventors: 宋文林
Original assignee: Chengdu Liyuan Hengshui Transfer Printing Technology Co ltd
Current assignee: Chengdu Liyuan Hengshui Transfer Printing Technology Co ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-02-12
Anticipated expiration: 2030-09-14

Abstract

The utility model discloses a printable water transfer printing film, include PET layer, modified PVA formula layer and print the coating, modified PVA formula layer is located PET layer surface, it locates to print the coating modified PVA formula layer surface. The utility model discloses can remove the plate opening from, carve, electroplating process, save the time cost and reduce the pollution to the environment, it is good to have the permeability in addition, does not have the sagging phenomenon, prints the smoothness, and the reduction degree is high, and layering and damp-proof phenomenon can not appear.

Description

Printable water rendition membrane

Technical Field

The utility model relates to a water transfer printing technical field, the more specifically printable water transfer printing membrane that says so.

Background

Water transfer printing is a process that is initiated from printing and utilizes the principle of molecular diffusion to transfer a pattern (transfer film) to an article. However, the conventional water transfer film can be only gravure-printed. Gravure printing requires a series of complicated processes such as plate opening, engraving, electroplating, printing and the like. The popularization of the water transfer printing technology is difficult to realize on a large scale. The common PVA material for the water transfer film can not be directly used for printing finished products in the traditional modes of spray painting, silk printing and offset printing. The technical problems of sagging and non-adhesion can occur during the printing process.

The printable water transfer printing film on the market at present is a material produced by using a composite technology for common water transfer printing films and PVC paper, and patent application No. 202010197031.6 discloses a preparation method for a digital ink-jet printing water transfer printing film, the water transfer printing film and a water transfer printing method, wherein the water transfer printing film mainly comprises paper, PET, PVA and polyurethane gloss oil layers, and has the following defects in the using process: (1) the defects of layering, moisture regain and scrapping of the PVA layer and the PVC paper material can occur; (2) the material cannot be printed by using a common weak solvent and water-based membrane water, and the printed ink has no permeability and sagging; (3) rough pattern and poor reduction degree in the transfer process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a printable water-transfer die, can remove the plate opening from, the sculpture, electroplating process has saved the time cost, has reduced the pollution to the environment, and the permeability is good, and no sagging phenomenon prints smoothly, and the reduction degree is high, and layering and damp-proof phenomenon can not appear.

The purpose of the utility model is realized through the following technical scheme: the printable water transfer film comprises a PET layer, a modified PVA formula layer and a printing coating, wherein the modified PVA formula layer is arranged on the surface of the PET layer, and the printing coating is arranged on the surface of the modified PVA formula layer.

In one preferred embodiment, the modified PVA formula layer is prepared by cross-linking reaction of PVA and PVP.

In one preferable scheme, the thickness of the PET layer is 70-75 μm.

In a preferred embodiment, the surface of the PET layer is glossy and free of scratches.

The utility model has the advantages that: the material of the utility model does not need to be opened, and the processes of opening, carving and electroplating are omitted, thereby saving the time cost and reducing the pollution to the environment; the water transfer printing film is not limited by materials and printing modes, can be used for various water-based and weak solvent and solvent-based inks and ink systems to directly perform printing, laser printing, silk printing and offset printing on the film material, is prepared by a coating process and a corona process, has good trafficability, good ink permeability after printing, no sagging phenomenon, smooth printing and high reduction degree, and does not have the phenomena of layering and moisture reversion after being placed for a long time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of the present invention;

in the figure, 1-PET layer, 2-modified PVA formulation layer, 3-print coating.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

The terms "parallel", "perpendicular", etc. do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined. For example, "parallel" merely means that the directions are more parallel relative to "perpendicular," and does not mean that the structures are necessarily perfectly parallel, but may be slightly tilted.

The terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal, vertical or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

Furthermore, the terms "substantially", and the like are intended to indicate that the relative terms are not necessarily strictly required, but may have some deviation. For example: "substantially equal" does not merely mean absolute parallelism, and because absolute equality is difficult to achieve in actual production and operation, certain deviations generally exist. Thus, in addition to absolute equality, "substantially equal" also includes the above-described case where there is some deviation. In this case, unless otherwise specified, terms such as "substantially", and the like are used in a similar manner to those described above.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the utility model provides a technical scheme: the utility model provides a printable water transfer printing film, includes PET layer 1(PET chooses for use the product of U.S. DuPont company production manufacturing), modified PVA formula layer 2 and prints coating 3, PET layer 1 chooses for use surperficial highlight and no mar as the base plate, reduction when can effectively improving the product and print, the definition of image. The modified PVA formula has larger surface friction force and better hardness, can increase the inking amount of printing after corona treatment, is prepared by the crosslinking reaction of PVA and PVP, and can improve the flatness and the stiffness through the crosslinking reaction of PVA and PVP, so that the material is more suitable for printing. The modified PVA formula layer 2 is arranged on the surface of the PET layer 1, and the printing coating layer 3 is arranged on the surface of the modified PVA formula layer 2. The material of the utility model does not need to be opened, and the processes of opening, carving and electroplating are omitted, thereby saving the time cost and reducing the pollution to the environment; the water transfer printing film is not limited by materials and printing modes, can be used for various water-based and weak solvent and solvent-based inks and ink systems to directly perform printing, laser printing, silk printing and offset printing on the film material, is prepared by a coating process and a corona process, has good trafficability, good ink permeability after printing, no sagging phenomenon, smooth printing and high reduction degree, and does not have the phenomena of layering and moisture reversion after being placed for a long time.

Preferably, the thickness of the PET layer 1 is 70-75 μm, and the modified PVA formula layer 2 can be effectively protected by the thicker PET layer 1.

The preparation method of the product comprises the following steps:

a. preparing a PET film with the thickness of 70-75 μm as a substrate;

b. uniformly coating the modified PVA formula slurry on the surface of a substrate of a PET film through a coating process; the coating process can better ensure the uniformity of the thickness of the coating, and simultaneously can ensure that the modified PVA formula slurry has better adhesive force on PET.

c. After finishing coating, drying the PET film coated with the modified PVA formula slurry at a certain temperature of 70 degrees;

d. after drying, the material is subjected to corona treatment, most plastic films (such as hydrocarbon polymer films) are nonpolar polymers, the known ink and adhesive with low surface tension cannot be firmly attached to the plastic films, and the corona treatment can break chemical bonds of plastic molecules to degrade the plastic molecules and increase the surface roughness and the surface area. A large amount of ozone is generated during discharging, the ozone is a strong oxidant and can oxidize plastic molecules to generate groups with stronger polarity, such as carbonyl, peroxide and the like, so that the surface performance of the plastic is improved; the obtained material is subjected to a static electricity removing treatment process, and the dust contamination capacity of the film can be reduced after static electricity is removed, so that the surface of the film is ensured not to have dust, and the printing quality is improved.

e. After the corona treatment is finished, the printing coating 3 is coated on the surface of the PVA film layer by a coating process and dried to obtain a product, and the temperature is kept at 80 degrees during drying.

Prior art and the utility model discloses a structure composition is as follows table relatively:

the utility model discloses reduced the constitution of structure to adopt the product that the preparation method mentioned in the claim obtained, this product has following advantage: (1) because the product does not contain PVC paper materials, the phenomena of layering and moisture regain can not occur; (2) the product can be used for printing ink with the properties of solvent, weak solvent, water-based silk screen printing and the like, and the ink has good permeability after printing and can not sag; (3) the transfer printing process has delicate patterns, high reduction degree and the like.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. The utility model provides a printable water rendition membrane which characterized in that: the PET printing ink comprises a PET layer, a modified PVA formula layer and a printing coating, wherein the modified PVA formula layer is arranged on the surface of the PET layer, and the printing coating is arranged on the surface of the modified PVA formula layer.

2. The printable water transfer film of claim 1, wherein: the thickness of the PET layer is 70-75 mu m.

3. The printable water transfer film of claim 1, wherein: the surface of the PET layer is high in light and free of scratches.