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Seal bar and process for using same

A sealing strip, flat technology, applied in packaging and other directions, to achieve the effect of less failure, high efficiency and high productivity

Active Publication Date: 2019-05-21
DOW GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, winglets are problematic because they require specialized heat seal strips to effectively seal the winglet to the flexible film package

Method used

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  • Seal bar and process for using same
  • Seal bar and process for using same
  • Seal bar and process for using same

Examples

Experimental program
Comparison scheme
Effect test

example

[0210] 1. Sealing strip

[0211] A sealing strip device is used to manufacture a flexible pouch by heat sealing the accessory to the multilayer film. The sealing strip device has opposite sealing strips, and the sealing strips have Figure 1 to Figure 4 The structure of the sealing strips 10 and 210 shown in. Each sealing strip satisfies equation (1) and equation (2), in which the following values ​​are shown in Table 2 below.

[0212] Table 2

[0213]

[0214] In the example of the present invention, a flexible multilayer film having the structure shown in Table 3 below was used.

[0215] 2. Multilayer film

[0216] Table 3. The composition of the flexible multilayer film (film 1) laminated multilayer film

[0217]

[0218] 3. Accessories

[0219] Nine comparative samples (CS) and four inventive examples (IE) of the accessory were prepared. The size of each accessory is the same, and only the material is different between the accessories. The CS accessories are made of 100wt% INFUSE ...

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Abstract

The present disclosure provides a seal bar. In an embodiment, the seal bar comprises a base member having a flat front surface and a flat recessed surface a distance (d) behind the front surface. Thefront surface defines an x-axis, X. The flat recessed surface has a first endpoint (Al), wherein an axis that is perpendicular to the flat recessed surface at the first endpoint (Al) defines a first y-axis (Yl). The seal bar has a concave surface extending the distance (d) between the first endpoint (Al) and a point (Bl) on the flat front surface. The concave surface defines a quadrant arc segmentof an ellipse between the first endpoint (Al) and the point (Bl).

Description

Technical field [0001] The invention relates to a sealing strip, a sealing strip device and a method for sealing a flexible fitting between two flexible films. Background technique [0002] A flexible pouch with a rigid pouring spout is known, which is used to store and deliver flowable materials, and is often referred to as a "pour-pouch." Many conventional pouring pouches utilize rigid pouring spouts in which the base of the spout has winglets. Each winglet is a structure perpendicular to the base, and each winglet extends radially (along the opposite direction) from the annular base of the spout. The winglets are used to increase the surface area of ​​the annular substrate so as to promote the adhesion between the spout and the flexible packaging film. [0003] However, the winglet is problematic because it requires a special heat sealing strip to effectively seal the winglet to the flexible film package. The special heat sealing strip requires a unique shape that matches the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C65/18B29C65/04B29C65/08B29C65/72B29K23/00B29K96/04
CPCB29C65/08B29C65/18B29C65/72B29C66/1122B29C66/53262B29C66/71B29C66/73921B29C66/81423B29C66/81431B29C66/83221B29C65/04B29K2023/08B29K2023/00B29K2096/04B29K2023/0633B29K2023/065B29K2023/0625B29K2067/003B29K2077/00B29K2023/12B29K2023/0616B65B61/186B65B61/20B65D75/5883
Inventor 马良凯S·L·克拉布特里J·C·戈梅斯M·H·米尔戈贡M·S·布莱克M·O·拉博内维尔M·J·特平M·J·希思C·M·塞勒L·A·万舒姆雷恩N·C·马佐拉
Owner DOW GLOBAL TECH LLC
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