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Surface printing packaging film of PVDC and nylon co-extrusion film and preparation method thereof

A packaging film and co-extrusion film technology, which is applied in the field of preparing the PVDC or nylon co-extrusion film surface printing packaging film, can solve the problem that the two-component ink cannot be reused, the ink wastes a large packaging cost, and the color of the printing picture is not clear and other problems, to achieve the effect of controlling printing cost, low production cost and large ink selectivity

Inactive Publication Date: 2009-07-22
河南双汇投资发展股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The surface printing ink for printing PVDC or nylon co-extrusion film has two kinds of cooking inks: two-component and one-component cooking inks. It cannot be reused, and the ink must be replaced after a period of use, and the waste of ink is large, resulting in high packaging costs
Although the one-component surface printing ink can be reused, the covering property of the printing ink layer is low, the hue of the printing picture is not clear, and the packaging quality is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1. The present invention includes the following layered structure, the upper layer is a high-temperature cooking two-component polyurethane solvent-based varnish, the middle layer is a high-temperature cooking single-component cooking ink, and the lower layer is a PVDC or nylon co-extrusion film.

[0013] The middle and upper layers of the present invention are high temperature resistant 115°C cooking two-component polyurethane solvent-based varnish, and the preferred solution is high-temperature resistant 121°C cooking two-component polyurethane solvent-based varnish. The middle layer is high temperature resistant 115°C cooking single-component cooking ink, and the preferred solution is high temperature resistant 121°C cooking one-component cooking ink. When the PVDC film is used as the lower layer of the present invention, the thickness of each layer of the section of the packaging film from the outside to the inside is: 2 μm / 4 μm / 30 μm to 50 μm. When the l...

Embodiment 2

[0026] Embodiment 2. The present invention includes the following layered structure, the upper layer is high temperature resistant cooking two-component polyurethane solvent-based varnish, the middle layer is high temperature resistant cooking one-component cooking ink, and the lower layer is PVDC or nylon co-extruded film.

[0027] The middle and upper layer of the present invention is high temperature resistant 130°C cooking two-component polyurethane solvent-based varnish, and the preferred solution is high-temperature resistant 121°C cooking two-component polyurethane solvent-based varnish. The middle layer is a high temperature resistant 130°C cooking one-component cooking ink, and the preferred solution is a high temperature resistant 121°C cooking one-component cooking ink. When the PVDC film is used as the lower layer of the present invention, the thickness of each layer of the section of the packaging film from the outside to the inside is: 2 μm / 4 μm / 30 μm to 50 μm. W...

Embodiment 3

[0040] Embodiment 3. The present invention includes the following layered structure, the upper layer is high temperature resistant cooking two-component polyurethane solvent-based varnish, the middle layer is high temperature resistant cooking single component cooking ink, and the lower layer is PVDC or nylon co-extruded film.

[0041] The middle and upper layers of the present invention are high temperature resistant 125°C cooking two-component polyurethane solvent-based varnish, and the preferred solution is high-temperature resistant 121°C cooking two-component polyurethane solvent-based varnish. The middle layer is a high temperature resistant 125°C cooking one-component cooking ink, and the preferred solution is a high temperature resistant 121°C cooking one-component cooking ink. When the PVDC film is used as the lower layer of the present invention, the thickness of each layer of the section of the packaging film from the outside to the inside is: 2 μm / 4 μm / 30 μm to 50 μ...

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Abstract

The invention discloses a surface printed packaging film of PVDC, nylon coextruded films and its produce method. The packaging film includes layered structures as follows: the upper layer is mixture of polyurethane solvent-based varnishes which is resistant to high heat and boiling, middle layer is single component boiling printing ink resistant to high temperature boiling, the nether layer is PVDC or nylon coextruded films. The preparation methods are as follows: printing ink film on the surface of PVDC or nylon coextruded films using single component boiling printing ink and according the gravure surface printing technique, and re-printing mixture of polyurethane solvent-based varnishes resistant high heat boiling. Since the invention adopts said three-layer structure and the preparation, it protects the printing pictures very well. The advantages of the printing ink layers are: it covers very well, its brightness is high, production cost is low and production efficiency is high. The selectivity of ink is wide, and it can effectively control the printing costs and improve the quality of surface printed pictures.

Description

Technical field: [0001] The invention relates to a food packaging film and a preparation method thereof, in particular to a food packaging film using a high-brightness high-temperature resistant cooking PVDC or nylon co-extrusion film surface printing packaging film, and also relates to a method for preparing the PVDC or nylon co-extrusion Film surface printing method for packaging film. Background technique [0002] PVDC or nylon co-extruded film is a very important food packaging material. This material has a good shelf life for food and is in great demand in the market. The printing method of its product packaging is surface printing. [0003] The surface printing ink for printing PVDC or nylon co-extrusion film has two kinds of cooking inks: two-component and one-component cooking inks. It cannot be reused, and the ink must be replaced after a period of use, and the waste of ink is large, resulting in high packaging costs. Although the one-component surface printing in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/08B65D65/40B32B38/14
Inventor 王国强张传国王涛王军义张勇张军光
Owner 河南双汇投资发展股份有限公司
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