4results about How to "Improve anti-counterfeiting function" patented technology

The utility model discloses an anti-fake bottle cap capable of preventing an inner cap and an upper cap from being pulled out, which comprises an anti-fake upper cap and an anti-fake lower cap, the lower edge of the anti-fake upper cap abuts against the upper edge of the anti-fake lower cap, an anti-fake connecting piece, a plurality of anti-fake tooth belts and a plurality of positioning columns are arranged between the anti-fake upper cap and the anti-fake lower cap, and the anti-fake tooth belts and the positioning columns are connected to the anti-fake connecting piece. The anti-fake upper cover is matched with the anti-fake lower cover in a clamped mode through the anti-fake connecting piece, and the anti-fake upper cover is matched with the anti-fake lower cover in an inserted mode through the positioning column. According to the utility model, the anti-counterfeiting tooth belt arranged on one side of the anti-counterfeiting connecting sheet can be damaged by the anti-counterfeiting upper cover and the anti-counterfeiting lower cover no matter the anti-counterfeiting upper cover and the anti-counterfeiting lower cover are subjected to transverse screwing-off force or vertical pulling-off force; therefore, the anti-counterfeiting structure easy to identify is formed. The capability of the anti-fake bottle cap to cope with vertical pulling-out force is greatly enhanced, and it is guaranteed that after the anti-fake bottle cap is pulled out under the conditions of boiling in water and high temperature, the anti-fake component is obviously damaged and is easy to recognize; therefore, the structural anti-counterfeiting function of the anti-counterfeiting bottle cap is ensured.

The invention belongs to the technical field of packaging films, and particularly discloses a laser heat shrinkage film and a preparation method thereof. The laser heat shrinkage film comprises a heat sealing layer, a heat shrinkage layer and a laser pattern layer, the raw material of the heat sealing layer comprises polypropylene and / or polyethylene, the raw material of the heat shrinkage layer comprises polypropylene and polyethylene, and the laser pattern layer is a holographic information layer or a laser ink layer. The laser heat shrinkage film prepared in the invention has good strength, tear resistance and heat shrinkage, all the components are mixed, and the prepared laser heat shrinkage film has high transparency, high shrinkage rate, anti-counterfeiting function, durability, aesthetic property and protectiveness.

The utility model discloses a multilayer film structure based on bright surface paper, including the transparent layer, bright surface paper, adhesive layer and double glue base paper of up and down distribution, the transparent layer includes the first transparent adhesive film and second transparent adhesive film that different anti -fake marks are printed, and the first transparent adhesive film and second transparent adhesive film all are glued on the bright surface layer, and the anti -fake mark of both is not blocked each other, and the adjacent place of first transparent adhesive film and second transparent adhesive film exists the overlapping area, and both fixed connection. The utility model discloses through gluing the first transparent adhesive film and second transparent adhesive film on the bright surface layer of bright surface paper, does not influence the original luster and aesthetic feeling of bright surface paper, and through the anti -fake mark of first transparent adhesive film and second transparent adhesive film, increases the anti -fake function, in addition, because first transparent adhesive film and second transparent adhesive film fixed connection, improve the bonding strength of first transparent adhesive film and second transparent adhesive film and bright surface paper, and the combination of different anti -fake marks can improve the difficulty of counterfeiting, and easily consumer identification.

The utility model relates to an inner cap, in particular to a novel anti-pulling-off double-material injection molding type white spirit anti-fake bottle cap inner cap, and solves the design problem of preventing the inner cap from being pulled out by mistake. The inner cover comprises an inner buckle body and an outer cover body which are integrally formed through double-material injection molding, connected clamping portions are arranged between the inner buckle body and the outer cover body, the clamping portions are in a step-shaped distribution path, the number of the clamping portions is at least two in the circumferential direction, a through sealing cavity is formed in the middle of the outer cover body, and the sealing cavity is communicated with the inner buckle body and the outer cover body. The inner buckle body is provided with a protruding part extending into the sealing cavity of the outer cover body, and a gap is formed between the protruding part and the cavity wall of the sealing cavity. The pulling force of the bottle cap is greatly improved, so that the problem that the inner cap is pulled off from other components (on the inner sleeve and the upper cap) of the bottle cap under the physical force of the bottle cap is solved; the anti-counterfeiting function of the bottle cap product is greatly improved; compared with other split type anti-counterfeiting inner covers, the production cost is reduced, the production procedures are reduced, and the production efficiency is improved.