Cover easy to tear and manufacturing method thereof

A manufacturing method and technology of easy-to-tear caps, applied in the direction of caps, flexible coverings, bottle/container caps, etc., can solve the problems of sealing film damage, rupture, sealing film cracks, etc., so that it is not easy to break, guarantee normal use, Good sealing effect

Inactive Publication Date: 2015-12-23
ZHEJIANG GOLDSTONE PACKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For this reason, the technical problem to be solved by the present invention is to overcome the defects that the existing method of riveting the pull tab and the sealing film together may easily cause cracks or even rupture of the sealing film and cause damage to the sealing film, thereby providing a pull tab Easy-to-tear cap that is not likely to cause cracks or even breakage of the parafilm when combined with the parafilm and manufacturing method thereof

Method used

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  • Cover easy to tear and manufacturing method thereof
  • Cover easy to tear and manufacturing method thereof
  • Cover easy to tear and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] refer to figure 1 and figure 2 , an easy-tear cover of the present invention, comprising

[0056] The cover body 1 is provided with an extraction hole 11;

[0057] The parafilm 2 includes a parafilm body 21 and a pull-tab 22 arranged at the edge of the parafilm body 21. The seal cover of the parafilm body 21 is mounted on the extraction hole 11, and the pull-tab 22 can be folded under the action of an external force. onto the parafilm body 21;

[0058] It also includes a glue layer 3, the glue layer 3 is arranged on the pull tab 22 and / or the parafilm body 21, for connecting the pull tab 22 folded on the parafilm body 21 with the The parafilm body 21 is bonded. The specific form of the glue in the glue coating layer can be various, for example, it can be heat-sealing glue or hot-melt glue.

[0059] The easy-tearable lid of the present invention is applied to the lid to be installed on the tank body, so as to realize the sealing and opening of the tank body. Durin...

Embodiment 2

[0068] This embodiment provides a method for manufacturing an easy-tear cover, which includes the following steps:

[0069] S1: printing a cursor 4 on the outer surface of the aluminum foil;

[0070] S2: Determine the gluing area according to the position of the cursor 4, and form the gluing layer 3 in the gluing area;

[0071] S3: forming a varnish layer on the outer surface of the aluminum foil, the varnish layer does not cover the cursor 4; if the varnish layer is transparent, the varnish layer can also cover the cursor 4;

[0072] S4: forming a heat-sealing layer on the inner surface of the aluminum foil; the heat-sealing layer is formed by heat-sealing glue, and when the heat-sealing glue is used to form the heat-sealing layer, the heat-sealing glue is first coated on the inside of the aluminum foil On the surface, drying treatment is carried out to form a heat-sealing layer;

[0073] S5: Cut the aluminum foil into the shape of the required parafilm 2, the parafilm 2 in...

Embodiment 3

[0095] This embodiment provides a method for manufacturing an easy-tear cover, which includes the following steps:

[0096] S1: printing a cursor 4 on the outer surface of the aluminum foil;

[0097] S2: Determine the gluing area according to the position of the cursor 4, and form the gluing layer 3 in the gluing area;

[0098] S3: forming a varnish layer on the outer surface of the aluminum foil;

[0099] S4: Form a heat-sealing layer on the inner surface of the aluminum foil; the heat-sealing layer is formed by using a PE film, and when the heat-sealing layer is formed by using a PE film, first coat the inner surface of the aluminum foil Adhesive, then carry out drying treatment, then heat-compress the PE film on the side of the aluminum foil coated with the adhesive, and then put the aluminum foil compounded with the PE film in the curing chamber for curing to form a heat-sealing layer;

[0100] S5: Cut the aluminum foil into the shape of the required parafilm 2, the para...

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Abstract

The invention discloses a cover easy to tear and a manufacturing method thereof. The cover easy to tear comprises a cover body provided with an object taking hole, a sealing film and a gummed layer, wherein the sealing film is provided with a sealing film body and a pull sheet, and the gummed layer is arranged on the pull sheet or the sealing film body and used for adhering the pull sheet to the sealing film body. The manufacturing method of the cover easy to tear comprises the steps that a gloss oil layer is formed on the outer surface of aluminum foil and subjected to drying treatment; a heat-seal layer is formed on the inner surface of the aluminum foil; a cursor is printed on the outer surface of the aluminum foil or the gloss oil layer; a gummed area is determined according to the position of the cursor and the gummed layer is formed; the aluminum foil is cut into a shape of the required sealing film, and the gummed layer is located on the pull sheet and / or the sealing film body; the cover body is covered with the sealing film, and the object taking hole of the cover body is sealed; the pull sheet is turned over onto the sealing film body; and the pull sheet adheres to the sealing film body through the gummed layer. The cover easy to tear and the manufacturing method thereof solve the technical problem that a sealing film cracks easily due to a pull sheet and sealing film connection mode in the prior art and have the advantage that the sealing film is not prone to cracks through combination of the pull sheet and the sealing film.

Description

technical field [0001] The invention belongs to the technical field of can packaging, in particular to an easy-tear lid and a manufacturing method thereof. Background technique [0002] At present, the lid body of food packaging cans is usually made of iron sheet or aluminum sheet. There is a score line around the can body. items inside the body. The cover body of this structure requires a large force to tear from the notch when opening, and it is very inconvenient to open; and the notch is relatively sharp, and it is easy to scratch fingers when taking out the items in the tank body. For this reason, in the field of can packaging, an easy-tear lid made of aluminum foil sealing film has appeared. The outer warping situation may cause the pull tab to fall off accidentally in the production line or subsequent circulation links, or the aluminum foil sealing film may be torn off accidentally, resulting in poor sealing effect of the easy-tear lid on the tank body, and easily ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D65/40B65D51/20B65D41/32B65D17/50
Inventor 曾文明孙国锦赵华赵向阳吉娟
Owner ZHEJIANG GOLDSTONE PACKING
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