Edge face structure of laminated film, method of processing edge face, liquid ejection nozzle with processed edge face, and process for producing the same

A technology for liquid discharge and end face treatment, applied in rigid/semi-rigid container manufacturing, thin material handling, container manufacturing machinery, etc. Sufficient safety and hygiene, the effect of ensuring safety and hygiene

Inactive Publication Date: 2010-11-03
YUSHIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the object to be packaged as a liquid also contacts the adhesive layer or primer layer exposed on the end face of the laminated film at the base end of the

Method used

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  • Edge face structure of laminated film, method of processing edge face, liquid ejection nozzle with processed edge face, and process for producing the same
  • Edge face structure of laminated film, method of processing edge face, liquid ejection nozzle with processed edge face, and process for producing the same
  • Edge face structure of laminated film, method of processing edge face, liquid ejection nozzle with processed edge face, and process for producing the same

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Embodiment Construction

[0032] Hereinafter, embodiments of the present invention will be described by taking, as an example, a liquid discharge nozzle formed using a laminated film having a three-layer structure in which sealing layers are disposed on both sides of a base film layer.

[0033] Fig. 1 is a view showing an embodiment of a liquid discharge nozzle of the present invention, and Fig. 1(b) is an enlarged cross-sectional view along line b-b of the side view of the discharge nozzle shown in Fig. 1(a).

[0034] The parts indicated by hatching in the figure indicate the welding provided on the peripheral part of the two laminated films on the front and back sides or a laminated film folded in half from the central part, except for the part that becomes the base end side of the discharge nozzle. The welded part 1 can form a discharge port at the front end of the discharge flow path 3 formed inside the welded part 1 by breaking or cutting off the welded part 2 at the front end.

[0035] A part of ...

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Abstract

A processed edge face structure of a laminated film composed of two or more layers comprising a uniaxially or biaxially stretched base film layer and a sealant layer superposed on one side or each side of the base film layer, the structure including one or more layers, e.g., an adhesive layer, an anchor coat layer, and an ink layer, which have been completely prevented from being exposed. Also provided are: a method of edge face processing for producing the structure; a liquid ejection nozzle capable of preventing a filling to be packaged into a flexible packaging bag from coming into contactwith the adhesive layer, etc.; and a process for producing the nozzle. The edge face of the laminated film comprising a base film layer and sealant layers superposed thereon so that the base film layer is sandwiched therebetween is characterized in that the edge face of the base film layer has been covered with the sealant layers by disposing the sealant layers so as to protrude from the edge of the base film layer.

Description

technical field [0001] The invention relates to an end surface structure of a laminated film and a method for treating the end surface of the laminated film, wherein the laminated film has a uniaxially or biaxially stretched base film layer and is laminated with at least one side of the base film layer Or each sealing layer laminated on both sides of the base film layer with the base film layer interposed therebetween. In addition, the present invention also relates to a liquid discharge nozzle formed of such an end-face-treated laminated film and a method for manufacturing the same. In particular, the present invention proposes a method for preventing the adhesive used between the above-mentioned base film layer and the sealing layer in a soft packaging bag equipped with a liquid discharge nozzle formed by the above-mentioned laminated film, from being primed. Materials, inks, etc. come into contact with the technology to be packaged in the bag. Background technique [00...

Claims

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Application Information

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IPC IPC(8): B65D33/38B31B50/64
CPCB31B2219/9067B65D75/5883B31B2219/62B31B19/84B29C67/0044B29L2009/00B32B3/02B32B3/04B32B7/12B32B27/08B32B27/283B32B27/322B32B2250/40B32B2307/4023B32B2307/516B32B2307/518B32B2307/748B32B2439/70B32B2439/80B31B70/79B31B70/85Y10T156/1036Y10T156/1051Y10T428/24777
Inventor 二濑克规
Owner YUSHIN
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