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Cold stamping formed composite hard sheet for packaging medicines

A composite hard sheet and packaging technology, applied in the field of pharmaceutical packaging, can solve the problems of separation layer, high production cost of composite hard sheet, aluminum cracking, etc., achieve high peel strength, cost advantage, prevent aluminum cracking and separation effect

Inactive Publication Date: 2011-10-12
SUZHOU HAISHUN PACKAGING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production cost of this kind of composite hard sheet is high, and there are problems such as aluminum cracking and delamination in use.

Method used

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  • Cold stamping formed composite hard sheet for packaging medicines
  • Cold stamping formed composite hard sheet for packaging medicines

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Embodiment Construction

[0012] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0013] see figure 1 As shown, a composite hard sheet for cold stamping molding for pharmaceutical packaging, including a polyamide layer 1, an aluminum foil layer 4, and a polyvinyl chloride layer 6 arranged in sequence, between the aluminum foil layer 4 and the polyvinyl chloride layer 6 A dry compound glue layer 5 is arranged, and a maleic anhydride modified polyethylene layer 2 and an acrylic acid modified polyethylene layer 3 are arranged between the polyamide layer 1 and the aluminum foil layer 4 .

[0014] The method for preparing a composite hard sheet for cold stamping molding for pharmaceutical packaging of the present invention comprises the following steps: co-extruding the modified polyethylene particles of the maleic anhydride-modified polyethylene layer 2 and the acrylic acid-modified polyethylene layer 3 Compos...

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Abstract

The invention discloses a cold stamping formed composite hard sheet for packaging medicines. The hard sheet comprises a polyamide layer, a maleic anhydride modified polyethylene layer, an acrylic acid modified polyethylene layer, an aluminum foil layer, a dry-laminate glue layer and a polyvinyl chloride layer which are arranged in turn. By the maleic anhydride modified polyethylene layer and the acrylic acid modified polyethylene layer which are extruded in a co-extrusion mode, the aluminum foil layer and the polyamide layer to which the maleic anhydride modified polyethylene layer and the acrylic acid modified polyethylene layer are attached have higher peel strength, the whole extrusion layer is flexible and high in toughness and has high tensile strength and elongation at rupture, and a product can be effectively prevented from having problems of aluminum rupture, layer separation and the like in the cold stamping process.

Description

technical field [0001] The invention belongs to the field of pharmaceutical packaging, and in particular relates to a composite hard sheet for cold stamping forming for pharmaceutical packaging. Background technique [0002] Existing cold-stamped composite hard sheets for pharmaceutical packaging are mostly produced by two dry composite processes, and their basic structure is a polyamide layer, a dry-coated glue layer, an aluminum foil layer, a dry-coated glue layer, and a polyvinyl chloride layer. The production cost of this kind of composite hard sheet is high, and problems such as aluminum cracking and delamination occur in use. Contents of the invention [0003] In order to overcome the general problems of the prior art, the object of the present invention is to provide a composite hard sheet for cold stamping forming for pharmaceutical packaging with low production cost and effective avoidance of aluminum cracking and delamination. [0004] In order to solve the abov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/082B32B27/08B32B27/32B32B27/34B65D65/40
Inventor 吴继业林武辉
Owner SUZHOU HAISHUN PACKAGING MATERIAL
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