Preparation method of laser film with character holography

A laser film and holographic technology, applied in chemical instruments and methods, flexible and slender components, flexible coverings, etc., can solve the problems of complex nickel plate production process, affecting production efficiency, strict quality requirements, etc., and achieve good separation capacity, improved production efficiency, and low membrane pressure temperature

Inactive Publication Date: 2020-09-01
JIANGSU KINGHENG PACKAGE MATERIAL CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] On the one hand, the slit laser film with text holography always has an obvious slit, which greatly affects the appearance
The seamless laser film with plain surface and other effects adopts the secondary film pressing process, which is only suitable for the plain surface or light column laser film with the same or similar information effect. The laser film with no obvious difference in the secondary superposition is not suitable for the laser film with text holography.
[0004] On the other hand, the normal film pressing process uses a nickel plate as a template for pressing, and the temperature during the film pressing process is too high at about 150°C, so the pressed base film is easy to deform or wrinkle; the speed of the traditional film pressing machine is too slow, Generally 45m / min, which seriously affects the production efficiency; moreover, the production process of the nickel plate is complicated, the quality requirements are very strict, and the manufacturing cost is high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of laser film with character holography
  • Preparation method of laser film with character holography
  • Preparation method of laser film with character holography

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A method for preparing a laser film with text holography, the process flow chart is as follows figure 1 , including the following steps:

[0036] (1) Resin coating is prepared by weight percentage content, 10% of methyl methacrylate, 15% of butyl acrylate, 10% of acrylic resin, 60% of acetone, 3% of ammonium persulfate, and 2% of aziridine are added in the reactor Mix well, then slowly add ammonia water to adjust the PH value of the paint to 7;

[0037] (2) Coating one deck of prepared resin paint on the PET base film to form a paint layer;

[0038] (3) Print the corresponding text information on the paint layer to form a text layer, in which the text part is not printed, and it is in an empty state;

[0039] (4) The seamless laser film made by traditional technology is used as the template, wherein the seamless laser film is a flattened metal aluminum film, and the printed PET base film is pressed. The film pressure temperature is 100°C. The speed of the press is 70...

Embodiment 2

[0044] A method for preparing a laser film with text holography, comprising the steps of:

[0045] (1) Resin coating is prepared by weight percentage content, 20% of methyl methacrylate, 20% of butyl acrylate, 6% of acrylic resin, 50% of acetone, 2% of ammonium persulfate, and 2% of aziridine are added in the reactor Mix well, then slowly add ammonia water to adjust the pH value of the paint to 8;

[0046] (2) Coating one deck of prepared resin paint on the PET base film to form a paint layer;

[0047] (3) Print the corresponding text information on the paint layer to form a text layer, in which the text part is not printed, and it is in an empty state;

[0048] (4) The seamless laser film made by the traditional process is used as the template, wherein the seamless laser film is a flattened metal aluminum film, and the printed PET base film is pressed, and the film pressure temperature is 90°C. The speed of the press is 80m / min, and the film pressure is 15kg, and the hologr...

Embodiment 3

[0052] A method for preparing a laser film with text holography, comprising the steps of:

[0053] (1) Resin coating is prepared according to weight percent content, and methyl methacrylate 25%, butyl acrylate 16%, acrylic resin 5%, acetone 50%, ammonium persulfate 3%, aziridine 1% are added in the reactor Mix well, then slowly add ammonia water to adjust the PH value of the paint to 7;

[0054] (2) Coating one deck of prepared resin paint on the PET base film to form a paint layer;

[0055] (3) Print the corresponding text information on the paint layer to form a text layer, in which the text part is not printed, and it is in an empty state;

[0056](4) The seamless laser film made by traditional technology is used as the template, wherein the seamless laser film is a flattened metal aluminum film, and the printed PET base film is pressed. The film pressure temperature is 100°C. The speed of the press is 65m / min, and the film pressure is 20kg, and the hologram is copied on ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a preparation method of a laser film with character holography. The preparation method comprises the following steps of: (1) preparing a resin coating; (2) applying a layer ofresin coating onto the surface of a PET base film to prepare a coating layer; (3) printing character information on the coating layer to obtain a character layer; (4) conducting film pressing processing on the character layer with a seamless laser film used as a template, copying holography to the character layer of the PET base film, the film pressing temperature ranging from 90 DEG C to 100 DEGC, and the film pressing speed ranging from 65 m / min to 80 m / min; and (5) plating a dielectric layer on the pressed PET base film in vacuum. The film pressure temperature is low, deformation is smallwhen the base film is pressed, so that the fastness and definition of the base film are improved, and the yield is increased; a film pressing machine is high in speed, so that a production period is shortened; the seamless film pressing plate is adopted, the pressure of a pressing roller is proper during film pressing, a film surface is clean, and a holographic effect is good; the prepared plate-seam-free laser film with character holography is uniform and attractive in appearance and free of plate seams.

Description

technical field [0001] The invention relates to a method for preparing a laser film, in particular to a method for preparing a seamless laser film with text holography. Background technique [0002] With the wide application of laser film in packaging materials in the fields of tobacco and alcohol, food, medicine and cosmetics, laser film is divided into slit laser film with text hologram and seamless laser film with plain surface and other effects. The main process of the laser film with text holography is to use the film plate to directly press the information on the base film and then coat the corresponding medium. The film plate is wrapped on the surface of the steel roller by a flat nickel plate, so that the nickel plate is stitched together. There will be a seam at the place, resulting in the final pressed laser film also has a corresponding seam. The seamless laser film of the plain surface or light column adopts the second film pressing. After the normal film is pre...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B32B27/36B32B27/06B32B33/00C09D4/02B65D65/40
CPCB32B27/06B32B27/36B32B33/00B65D65/40B65D2565/381C09D4/00
Inventor 徐祥祥
Owner JIANGSU KINGHENG PACKAGE MATERIAL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap