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Packaging material

A technology of packaging materials and raw materials, applied in the field of packaging materials, can solve problems such as jumping out and reducing the performance of packaging machines

Inactive Publication Date: 2006-08-30
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, there is a problem of simultaneous feeding of two cartons in the supply section, or a phenomenon that a carton jumps out of the carton making section, thereby reducing the performance of the packaging machine

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0103] As a base paper material, the basis weight is 270g / cm 2 (manufactured by Oji Paper Co., Ltd; coated board "UF" with a gray back), using an offset printing machine equipped with an ultraviolet irradiation device, using four colors, green, red, yellow and black ( UV cardboard series, manufactured by The Ink Tech Co.) UV-curable ink, printing the printing layer of the image so that the amount of each coating is about 2 g / m after hardening 2 . Next, on the above-mentioned printed layer, solid-print the UV-curable OP varnish composition having the following composition so that the coating amount after hardening is about 2 g / m 2 , thereby preparing a packaging material for cardboard.

[0104] UV-Curable OP Varnish Compositions:

[0105] (1) Acrylic acid prepolymer, oligomer 45% by weight

[0106] (2) Multifunctional acrylate monomer 15% by weight

[0107] (3) Photopolymerization initiator 8% by weight

[0108] (4) extender 25% by weight

[0109] (5) Wax 2% by weight

...

Embodiment 2

[0129] A packaging material was prepared in the same manner as in Example 1, except that the UV-curable OP varnish composition was replaced with the composition described below. As in Example 1, the friction coefficient test, the measurement of the sliding angle of the material surface and the graph change observation of the dynamic friction coefficient value were respectively carried out, and the performance of the packaging material on the packaging machine was checked.

[0130] UV-Curable OP Varnish Compositions:

[0131] (1) Acrylic acid prepolymer, oligomer 44% by weight

[0132] (2) Multifunctional acrylate monomer 20% by weight

[0133] (3) Photopolymerization initiator 8% by weight

[0134] (4) extender 20% by weight

[0135] (5) Wax 3% by weight

[0136] (6) Other additives 5% by weight

[0137] As a result, in the packaging material of Example 2, substantially the same value as that of Example 1 was obtained for each of the coefficient of dynamic friction, the c...

Embodiment 3

[0139] A packaging material was prepared in the same manner as in Example 1, except that the UV-curable OP varnish composition was replaced with the composition described below. As in Example 1, the friction coefficient test, the measurement of the sliding angle of the material surface and the graph change observation of the dynamic friction coefficient value were respectively carried out, and the performance of the packaging material on the packaging machine was checked.

[0140] UV-Curable OP Varnish Compositions:

[0141] (1) Acrylic acid prepolymer, oligomer 41% by weight

[0142] (2) Multifunctional acrylate monomer 15% by weight

[0143] (3) Photopolymerization initiator 8% by weight

[0144] (4) extender 30% by weight

[0145] (5) Wax 1% by weight

[0146] (6) Other additives 5% by weight

[0147] As a result, in the packaging material of Example 3, substantially the same value as that of Example 1 was obtained for each of the coefficient of dynamic friction, the c...

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Abstract

The present invention provides a packaging material which comprises: base material paper; a printed layer formed on the base material paper by an ultraviolet curable ink; and an overprint varnish layer which covers substantially the entire surface of the base material paper with the printed layer formed thereon, wherein a coefficient of dynamic friction on a surface of the overprint varnish layer, which is measured in a friction coefficient test based on JIS P8147 in a state in which the surfaces of the overprint varnish layers overlap and contact with each other under a load of 3000 g for each area of 63.5 mmx63.5 mm, is in a range of 0.300 to 0.600, and a coefficient of static friction measured in the same condition ranges from 0.600 to 0.900. According to the present invention, a packaging material having excellent wear resistance and scratching resistance is provided.

Description

technical field [0001] The invention relates to a packaging material. Specifically, the present invention relates to a packaging material such as a carton printed with an ultraviolet curable ink, which has moderately stable sliding properties on its surface and allows improvement of mechanical properties such as feeding properties in packaging machines. Background technique [0002] Conventionally, packaging materials such as cartons are subjected to color printing of images or symbols, mainly by offset printing (offset printing), gravure printing or flexographic printing, using printing devices. A transparent overprint varnish (hereinafter referred to as "OP varnish") layer is provided on the printed base layer by means of printing or coating for the purpose of: protecting the printed base layer, improving rub resistance or scratch resistance, providing moderate slip properties, And further to provide a glossy surface to enhance the design features of the packaging materia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65D5/00B65D65/40B32B3/00B32B29/06G06F9/455G06F11/26
CPCG06F11/261Y10T428/24876
Inventor 凑滋远藤典秀
Owner FUJIFILM CORP