CN-224199311-U - Double-sided pattern printing film

CN224199311UCN 224199311 UCN224199311 UCN 224199311UCN-224199311-U

Abstract

The utility model discloses a double-sided pattern printing film, which comprises a substrate layer and pattern layers positioned on two sides of the substrate layer, wherein at least one bottom coating is arranged between the substrate layer and the pattern layers, one side of the bottom coating is attached to the substrate layer with low surface energy (without corona treatment), and the other side of the bottom coating is attached to the pattern layers, so that the adhesive force between the substrate layer and the pattern layers is enhanced through the bottom coating, and the quality and the stability of the printing film are improved. Meanwhile, the substrate layer is not subjected to double-sided corona (a scheme containing single-sided corona or no corona), so that phenomena such as film surface sticking phenomenon caused by excessively high film surface tension can not occur during rolling. Meanwhile, the bottom coating can bond and fix the ink of the pattern layer on the substrate layer to prevent the ink from migrating, thereby ensuring the integrity and definition of the printed pattern and avoiding the problems of uneven color, blurring and the like caused by ink migration. The substrate layer also comprises a polar functional layer arranged between the substrate film and the bottom coating, so that the polarity between the surface of the substrate film and the surface of the bottom coating is matched, the bonding force between the substrate film and the bottom coating is further enhanced, and the quality and stability of the printing film are further improved.

Inventors

GAO YONGKANG
WU QIMING
SUN XIAOLI
LI DANING
WU JIEFENG

Assignees

福建琦峰科技有限公司

Dates

Publication Date: 20260505
Application Date: 20250529

Claims (10)

1. A double-sided pattern printed film, comprising: A substrate layer comprising at least one base film; The pattern layer comprises a first pattern layer and a second pattern layer, the first pattern layer is arranged on the first surface of the base material layer, and the second pattern layer is arranged on the second surface of the base material layer; A primer layer comprising a first primer layer disposed between the first surface of the substrate layer and the first pattern layer; Wherein the first base coat is used for adhering and fixing the first pattern layer.
2. The double-sided patterned printed film of claim 1, wherein the second surface of the substrate layer is a corona surface that has been corona treated, the second patterned layer being adhesively bonded to the corona surface.
3. The double-sided pattern printed film of claim 1, wherein the substrate layer further comprises a polar functional layer comprising a first polar functional layer disposed between the first surface of the substrate film and the first primer layer.
4. The double-sided patterned printed film of claim 1, wherein the primer layer further comprises a second primer layer disposed between the second surface of the substrate layer and the second patterned layer, wherein the second primer layer is configured to adhesively secure the second patterned layer.
5. The double-sided patterned printed film of claim 4, wherein the substrate layer further comprises a polar functional layer comprising a second polar functional layer disposed between the second surface of the substrate film and the second primer layer.
6. The double-sided pattern printed film according to claim 3 or 5, wherein the polar functional layer comprises a polar PE copolymer.
7. The double-sided pattern printed film according to claim 6, wherein the polar PE copolymer is any one of an ethylene-methacrylic acid copolymer, an ethylene-butyl acrylate copolymer, an ethylene-vinyl acetate copolymer, an ethylene-acrylic acid copolymer, polyvinyl alcohol, a polyoxyethylene modifier, and polyether amide.
8. The double-sided patterned printed film of claim 1, wherein the area of the primer layer is greater than or equal to the area of the patterned layer.
9. The double-sided pattern printed film according to claim 1, wherein the primer layer is any one of polyacrylic resin and its modified product, polyamide and its modified product, polyurethane and its modified product, epoxy resin and its modified product, rosin modified resin, phenolic resin.
10. The double-sided patterned printed film of claim 1, wherein the patterned layer is a printed patterned layer.

Description

Double-sided pattern printing film Technical Field The utility model relates to the technical field of printed film products, in particular to a double-sided pattern printed film. Background The printing film is a material widely applied to the fields of product clothing, sanitary articles, packaging and the like. The scheme of the conventional double-sided printing film is that the double-sided printing film comprises a base film and two layers of printing layers, and as patterns are printed on two surfaces of the base film, the tension values of two sides of the base film are improved through double-sided corona treatment. For example, a shallow screen printing film disclosed in CN 211335231U has a double-sided corona scheme for the base layer, so as to achieve a double-sided printing effect. However, such designs suffer from the following drawbacks and deficiencies: Film surface tension through corona treatment is too high, and the membrane face oxidation is sticky simultaneously, and when the printing membrane is in the rolling, adjacent membrane face can laminate, can lead to the printing membrane to appear the membrane face and send out sticky phenomenon (that is adjacent membrane face bonding together promptly) for printing membrane's storage performance is not good, influences the use. In addition, if the difference in surface energy between the adjacent film surfaces is large (for example, greater than 2 dynes), the ink of the printed layer migrates toward the film surface having high surface energy, resulting in uneven and blurred printed patterns, and affecting the appearance quality of the printed film. In view of this, there is a need in the art for a double-sided pattern printing film that overcomes the above-described drawbacks and deficiencies. Disclosure of utility model In order to solve the technical problems of film surface tackiness, ink migration and the like which are easily caused by the printing film adopting the double-sided corona scheme in the prior art, the utility model provides a double-sided pattern printing film. The utility model adopts the technical proposal for solving the problems that: A double-sided pattern printed film, comprising: A substrate layer comprising at least one base film; The pattern layer comprises a first pattern layer and a second pattern layer, the first pattern layer is arranged on the first surface of the base material layer, and the second pattern layer is arranged on the second surface of the base material layer; A primer layer comprising a first primer layer disposed between the first surface of the substrate layer and the first pattern layer; Wherein the first base coat is used for adhering and fixing the first pattern layer. In the above technical solution, the first surface of the substrate layer is not corona treated, and the surface energy is low. One surface of the first bottom coating is attached to the first surface of the substrate layer, and the other surface of the first bottom coating is attached to the pattern layer, so that the adhesion force between the substrate layer and the pattern layer is enhanced through the bottom coating, the pattern layer is firmly adhered to the substrate layer, and the overall quality and stability of the printed film are improved. In addition, since the substrate layer is not subjected to double-sided corona (at least the first surface of the substrate layer is not subjected to corona treatment), phenomena such as film surface sticking phenomenon caused by too high tension of the film surface of the printed film after corona can not occur when the printed film is wound up. In addition, based on the good binding force between the first base coat and the first pattern layer, the first base coat can bond and fix the ink of the first pattern layer on the substrate layer, so that migration of the ink due to surface energy difference and the like is prevented, the integrity and definition of a printed pattern are ensured, and the problems of uneven color, blurring and the like caused by migration of the ink are avoided. As a preferable scheme, the second surface of the substrate layer is a corona surface subjected to corona treatment, and the second pattern layer is arranged in a compound manner with the corona surface. In the above technical scheme, the double-sided pattern printing film adopts a single-sided coating single-sided corona scheme, namely, the first surface of the substrate layer is used for attaching the pattern layer by arranging the bottom coating, and the second surface of the substrate layer is changed into a corona surface for attaching the pattern layer by adopting corona treatment. As a preferred embodiment, the substrate layer further includes a polar functional layer, and the polar functional layer includes a first polar functional layer, and the first polar functional layer is disposed between the first surface of the substrate film and the first primer layer. In the technical scheme,