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Package and process for producing same

a technology of packaging and process, applied in the field of packaging, can solve the problems of increasing cost, complicated structure, and adhesion layer, and achieve the effects of simple production process, reduced cost, and simplified structur

Inactive Publication Date: 2006-09-21
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The present invention provides a package for accommodating articles such as batteries and facial cleansing items. The package is simple in structure, has a simplified production process, lowers product cost, and is environmentally friendly. The package includes a light permeable base, a first printing layer, an anti-offset layer, and a second printing layer laminated on the base. A holding means is also provided to hold the article. The package is effective in achieving a simpler structure, lower production cost, higher package strength, and better appearance. The invention also addresses the problem of adhesive layers and biodegradable resins by providing a package with a simplified structure and a more cost-effective production process."

Problems solved by technology

Moreover, the existence of the adhesive layer is problematic because it makes the structure complicated and increases the cost.
Particularly because two different adhesion methods are used, the production process is complicated.
The use of such biodegradable resins is accompanied by the problems that they are difficult to control because the temperature range in which they are heat sealed is limited, and that the use thereof can cause variations in adhesion strength and quality.
Further, adhesives have poorer adhesion strength than heat sealing.
The fact is that adhesives suitable for biodegradable resins have not been found yet.

Method used

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  • Package and process for producing same
  • Package and process for producing same
  • Package and process for producing same

Examples

Experimental program
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Effect test

example 1

[0057] In this example, a package according to the present invention having the structure shown in FIGS. 1 and 2 was produced.

[0058] As the light permeable base 2a, a 150 μm thick translucent drawn sheet made of polylactic acid (PLA) was prepared. The base had a tensile strength (breaking strength) of 110 MPa both in length and width directions, and a tensile elasticity of 3.8 GPa in length direction and 4.3 GPa in width direction. The heat shrinkage of the base was measured according to JIS Z 1712 in which a test specimen was heated at 120° C. for 5 minutes. As a result, the base had a heat shrinkage of 2.7% in length direction and 0.3% in width direction.

[0059] On one surface of the base 2a were successively formed a 5 μm thick first printing layer 2b made of UV ink by relief printing, a 12 μm thick anti-offset layer 2c made of UV ink by flexographic printing, and a 5 μm thick second printing layer 2d by relief printing in a single rotary printing step. Thus, a backing sheet 2 w...

example 2

[0062] A package “B” according to the present invention was produced in the same manner as in Example 1 except that the base 2a of the backing sheet 2 and the container 3 were made using a drawn sheet of polyethylene terephthalate (PET) having a tensile strength (breaking strength) of 68 MPa both in length and width directions, a tensile elasticity of 2.1 GPa in length direction and 2.2 GPa in width direction, and a haze of less than 1%, instead of using a drawn sheet of PLA.

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Abstract

In order to obtain a package achieving a simpler structure, simpler production process, lower product cost, lower production cost, higher strength and excellent appearance, the package is produced by forming, on only one surface of a light permeable base, a first printing layer that can be observed from the other surface of the base, an anti-offset layer and a second printing layer that can be observed from the aforesaid one surface, and providing a holding means for holding an article at the side of a second surface of the base.

Description

TECHNICAL FIELD [0001] The present invention relates to a package accommodating an article such as a battery and a method for producing the same. BACKGROUND ART [0002] Product packages accommodating articles such as batteries, daily necessities including facial cleansing items, and processed foods have been widely used. From the viewpoint of effective display at stores / shops and low cost, blister packs are widely used for the containers of product packages. The product packages employing blister packs are composed of a blister pack, a laminate layer and a backing sheet laminated in this order. [0003] More specifically, a print is given on both surfaces of the backing sheet. The blister pack and the laminate layer are bonded by heat sealing. The laminate layer and the backing sheet are adhered by an adhesive. This yields a complicated laminate structure composed of the blister pack, the laminate layer, the adhesive layer, the printing layer, the backing sheet and the printing layer. ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B65D85/00B65B43/00B65D73/00B65B3/02B65D65/40B65D65/46B65D75/36
CPCB65D75/366
Inventor TADA, FUTOSHIKUMAKURA, KATSUHIKOUMEDA, TOZOUEMURA, KINJI
Owner PANASONIC CORP
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