CN211810738U

CN211810738U - Coding easily-torn cover

Info

Publication number: CN211810738U
Application number: CN201922256974.7U
Authority: CN
Inventors: 廖时龙; 田军
Original assignee: Shenzhen Daman Packaging Co ltd
Current assignee: Shenzhen Daman Packaging Co ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-10-30
Anticipated expiration: 2029-12-16

Abstract

The utility model provides a coding easy-to-tear cover, which comprises an iron ring and an aluminum foil, wherein the edge of the aluminum foil is connected with the iron ring, and at least one surface of the aluminum foil is formed with a character code structure through laser; the character code structure comprises protrusions and grooves which are distributed at intervals; character codes are formed on one surface, covered with the hot melt adhesive, of the aluminum foil, and the hot melt adhesive in the area corresponding to the character codes forms a closed raised part. The utility model provides an easily tear and cover surface has the word structure that adopts laser to generate, has the reverse color and beats the sign indicating number effect, produces in UV printing ink and beats the sign indicating number visual effect that the sign indicating number is approximate, and the visual observation is clear, and the visual angle is wide, and does not have any harmful substance, safety ring protects. The hot melt adhesive part above the character code structure produces the uplift, and the uplift part is sealed, complete and has no crevasse, thereby being capable of sealing the character code region, not producing dust in the code printing process, and being capable of avoiding the contact of the character code and the in-tank product.

Description

Coding easily-torn cover

Technical Field

The invention belongs to the technical field of product packaging, and relates to a code-giving easy-to-tear sealing cover arranged on a packaging tank.

Background

In food packaging cans such as milk powder cans and rice powder cans, the easy-to-tear cover is a common sealing structure, and is good in sealing performance, easy to tear and take off, quick and simple to operate and widely applied. The easy-to-tear cover is composed of an aluminum foil and a tinplate ring, and the aluminum foil is fixed on the tinplate ring. When the package needs to be opened quickly, the protruding edge arranged on the edge of the aluminum foil is pinched, and the aluminum foil part can be torn off quickly. In actual production, information such as production date, identification number and the like is often printed on the easy-to-tear aluminum foil by using UV ink, but the UV ink does not conform to the "nestle packaging ink guide" of nests, which clearly requires that the UV ink cannot be used for food packaging.

Disclosure of Invention

In order to solve the problem, the utility model discloses an adopt laser coding easily to tear lid.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a coding easily tears lid, includes iron ring and aluminium foil, and the aluminium foil edge is connected with the iron ring, the aluminium foil is at least one side to be formed with the word structure through laser.

Further, the code structure comprises protrusions and grooves which are distributed at intervals.

Further, the width of the protrusion is 0.4-1 micron, and the width of the groove is 0.08-0.1 micron.

Furthermore, one side of the aluminum foil is covered with hot melt adhesive, and the other side of the aluminum foil is covered with gloss oil.

Furthermore, word codes are formed on the surface, covered with the hot melt adhesive, of the aluminum foil, and the hot melt adhesive in the area corresponding to the word codes forms a closed raised part.

Further, the height of the bump is 5-40 microns.

Furthermore, the face that the aluminium foil coats and is stamped the hot melt adhesive is formed with the word, and the hot melt adhesive with the word corresponding region is level and smooth.

Furthermore, characters are formed on the surface, covered with the gloss oil, of the aluminum foil, and the upper portion of the character structure is not covered with the gloss oil.

Compared with the prior art, the utility model has the advantages of as follows and beneficial effect:

the utility model provides an easily tear and cover surface has the word structure that adopts laser to generate, has the reverse color and beats the sign indicating number effect, produces in UV printing ink and beats the sign indicating number visual effect that the sign indicating number is approximate, and the visual observation is clear, and the visual angle is wide, and does not have any harmful substance, safety ring protects. When word code structure top hot melt adhesive part produced to rise, the uplift part was sealed, complete nothing crevasse to can seal the word region, beat the sign indicating number in-process and can not produce the dust, and can avoid word and jar interior product to contact. The hot melt adhesive part above the character code structure is more difficult to fall off in a flat state, and the safety is improved.

Drawings

Fig. 1 is a front view of a peel-off lid.

Fig. 2 is a schematic view of the reverse side of the code-giving easy-to-tear cover.

FIG. 3 is a schematic diagram of protrusions and grooves in a codeword structure.

Fig. 4 is a schematic view of the hot melt adhesive on the raised portion, in a cut-away state to show the raised condition, which is actually a closed bulge.

FIG. 5 is a schematic cross-sectional view of a coded peel-off lid wherein the hot melt adhesive portion has ridges.

FIG. 6 is a schematic cross-sectional view of a coded peel-off lid wherein the hot melt adhesive is partially flat.

Description of reference numerals:

1-iron ring, 2-aluminum foil, 3-character code structure, 3-1-protuberance, 3-2-groove and 4-hot melt adhesive.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and embodiments, which are to be understood as illustrative only and not limiting the scope of the invention.

As shown in fig. 1 and 2, the utility model provides a coding easily tears lid, including iron ring 1 and aluminium foil 2, aluminium foil 2 edge is connected with the iron ring, glues the aluminium foil on the iron ring with gluing usually at present, easily tears. The front side or the back side of the aluminum foil area on the easily-torn cover can form the character code structure 3 by picosecond laser. The character codes include, but are not limited to, numeric codes, character codes, two-dimensional codes, ring codes, and the like. As shown in FIG. 3, the code comprises spaced protrusions 3-1 and grooves 3-2, wherein the protrusions have a width of 0.4-1 micron and the grooves have a width of 0.08-0.1 micron.

The front surface (the surface facing the interior of the food can and also called the inner side) of the aluminum foil easy-to-tear cover with the code is covered with hot melt adhesive 4, and the back surface (the outer side) is covered with gloss oil. When the control parameter of beating the sign indicating number is different, beat the sign indicating number back at the aluminium foil inboard that covers the hot melt adhesive, the hot melt adhesive that covers on the word has two kinds of forms, one kind is as shown the formation uplift part in figure 4, figure 5, through observing and experimental verification, the uplift part is sealed, complete nothing breach to can seal the word region, beat the sign indicating number in-process and can not produce the dust, avoid the word region to contact with the in-tank product. The height of the bumps is 5-40 microns. And the other hot melt adhesive part shown in 6 is flat and not damaged by laser, so that the hot melt adhesive layer is less prone to falling off in use. When the code is printed on the side of the aluminum foil covered with the gloss oil, the gloss oil can be printed, namely, the gloss oil is not covered above the character code area.

The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.

Claims

1. The utility model provides a coding easily tears lid, includes iron ring and aluminium foil, and the aluminium foil edge is connected its characterized in that with iron ring: at least one surface of the aluminum foil is provided with a character code structure through laser.

2. The coded peel-off lid according to claim 1, wherein: the code structure comprises protrusions and grooves distributed at intervals.

3. The coded peel-off lid according to claim 2, wherein: the width of the protrusion is 0.4-1 micron, and the width of the groove is 0.08-0.1 micron.

4. A coded easy-tear lid according to any one of claims 1 to 3, wherein: one side of the aluminum foil is covered with hot melt adhesive, and the other side of the aluminum foil is covered with gloss oil.

5. The coded peel-off lid according to claim 4, wherein: character codes are formed on the surface, covered with the hot melt adhesive, of the aluminum foil, and the hot melt adhesive in the area corresponding to the character codes forms a closed raised part.

6. The coded peel-off lid according to claim 5, wherein: the height of the bumps is 5-40 microns.

7. The coded peel-off lid according to claim 4, wherein: the aluminum foil is covered with the one side of hot melt adhesive and is formed with the word, level with the hot melt adhesive of the word corresponding region.

8. The coded peel-off lid according to claim 4, wherein: the aluminum foil is covered with gloss oil, one side of the aluminum foil is provided with a character code, and the upper part of the character code structure is not covered with gloss oil.