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Manufacturing process for high temperature-resistant and high pressure-resistant easy-open lid

A manufacturing process and technology of easy-open lids, applied to rigid containers, containers, packaging, etc., can solve the problems of deterioration, poor high-temperature and high-pressure resistance of easy-open lids, and incomplete sealing

Inactive Publication Date: 2011-05-18
广州龙驰包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As a common packaging material component, easy-open lids are widely used in milk powder packaging, chicken bouillon packaging and other food packaging materials. Packaging materials generally must have good airtightness. When using metal cans for food, it is necessary First put the food into the metal can and seal it, and possibly perform vacuum pumping and high temperature and high pressure sterilization. However, the current easy-open lids are not good at high temperature and high pressure. Therefore, in the process of high temperature and high pressure sterilization, it is easy to appear The slight deformation of the easy-open lid eventually leads to its inability to seal completely, causing air to penetrate in, causing the contents to rot or deteriorate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] 1) Select the aluminum plate, apply one of the colorless epoxy silicone coatings FTH128 and FH131 on the surface of the plate that forms the outer surface of the easy-open cover, and dry it, and apply the phenolic resin coating JBH01-32 on the other side, and dry it ; The coating thickness of colorless epoxy silicone coating is 1-2g / m2, and the coating thickness of phenolic resin coating is 2-3g / m2;

[0017] 2) Cut the sheet, round the edge, shape, form large and small bubbles, score, protect the edge, nail the ring, inject glue, and form the finished easy-to-open lid.

[0018] The selected aluminum plates are 8011 H18, H19 or 3 series aluminum alloys H18, H19 plates. After testing, the tensile strength of the plate is 285-290MPa, the yield strength is 275-295MPa, and the elongation is 4.8-5.0. When the easy-open lid prepared by this method is sterilized at 85-121°C for 30 minutes, the overall appearance does not change. , this is because the aluminum sheet used has go...

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Abstract

The invention discloses a manufacturing process for a high temperature-resistant and high pressure-resistant easy-open lid. The manufacturing process comprises the following steps of: selecting an aluminum sheet material; coating a colorless epoxy organic silicon coating on the sheet material surface which forms the outer surface of the easy-open lip and drying; coating a phenolic resin coating on the other surface and drying; and performing hacking, edge-rounding, molding, forming large and small bubbles, notching, edge-protecting, ring-nailing and gluing on the sheet material, and forming a finished product of the easy-open lid. The easy-open lid manufactured by the manufacturing process has high temperature resistance and high pressure resistance, and can perform high-temperature and high-pressure sterilization treatment without losing tightness.

Description

[0001] technical field [0002] The invention relates to a manufacturing process of a high-temperature and high-pressure resistant easy-open lid. Background technique [0003] As a common packaging material component, easy-open lids are widely used in milk powder packaging, chicken bouillon packaging and other food packaging materials. Packaging materials generally must have good airtightness. When using metal cans for food, it is necessary First put the food into the metal can and seal it, and possibly perform vacuum pumping and high temperature and high pressure sterilization. However, the current easy-open lids are not good at high temperature and high pressure. Therefore, in the process of high temperature and high pressure sterilization, it is easy to appear The slight deformation of the easy-open end will eventually cause it to not be completely sealed, causing air to penetrate in, causing the contents to rot or deteriorate. Contents of the invention [0004] The ob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D17/34B21D51/26
Inventor 张满昌
Owner 广州龙驰包装材料有限公司
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