SUMMERY OF THE UTILITY MODEL
In order to overcome the technical defects, the utility model provides an environment-friendly food packaging bag for nutrient solid beverage.
In order to solve the above problem, the utility model discloses realize according to following technical scheme:
the utility model relates to an environment-friendly food packaging bag for nutrient solid beverage, which comprises a soft bag body with an accommodating space;
the soft bag body is made of a flexible composite sheet material, and the flexible composite sheet material comprises an outer packaging layer, an aluminum foil layer and an inner protection layer which are tightly attached from top to bottom in sequence;
the outer packaging layer, the aluminum foil layer and the inner protection layer are connected through an aqueous polyurethane composite adhesive;
the inner protective layer is a polypropylene film.
Preferably, the outer packaging layer is made of a PBAT film, and commodity information is arranged on the outer packaging layer.
Preferably, the soft bag body is of a bag sleeving structure with two communicated ends, and openings at two ends of the soft bag body are sealed by hot pressing.
Preferably, the openings at two ends of the soft bag body are arranged in a continuous zigzag manner.
Preferably, the anti-counterfeiting sticker is fixedly connected to the local outer surface of the soft bag body;
the anti-counterfeiting sticker comprises a protective layer, a printing paper layer, an anti-counterfeiting base material layer and an adhesive layer which are tightly attached from top to bottom in sequence, wherein the adhesive layer is fixedly connected with the soft bag body;
the anti-counterfeiting base material layer is a flexible sheet made of polyethylene, and iron powder is arranged in the anti-counterfeiting base material layer so that the anti-counterfeiting sticker has magnetism and can be adsorbed by magnetic force.
Preferably, the front surface of the printed paper layer is printed with an anti-counterfeiting pattern, a bar code or a two-dimensional code.
Preferably, the protective layer is a transparent waterproof coating.
Preferably, the thickness of the anti-counterfeiting base material layer is 0.5-0.8 mm.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses an outer packaging layer, aluminium foil layer and inner protective layer all connect through waterborne polyurethane composite adhesive, and its comprehensive properties is excellent, satisfies the various demands of food soft-packing, and the health is better, and does not have the volatile problem of solvent, makes food package bag have more environmental protection characteristic.
2. The utility model discloses an environment-friendly food package bag adopts aluminium foil layer and interior protective layer complex. The aluminum foil layer has good functions of moisture resistance, separation, light resistance, permeability resistance and beautiful appearance. The inner protective layer adopts a polypropylene film, and is colorless, odorless and nontoxic. And has chemical resistance and heat resistance; effectively isolating the food from the external space.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
As shown in figures 1-3, the utility model discloses a preferable structure of an environment-friendly food packaging bag for nutritious solid beverage.
As shown in fig. 1, the environment-friendly food packaging bag comprises asoft bag body 10 and ananti-counterfeit sticker 20 attached to the outer surface of thesoft bag body 10. Thesoft bag body 10 is a bag covering structure with two ends communicated, and openings at two ends of the soft bag body are sealed by hot pressing to form a closed accommodating space in the middle of the soft bag body. The accommodating space is used for accommodating solid beverage.
Preferably, in order to facilitate tearing of the food packaging bag by people, the openings at the two ends of the soft bag body are arranged to be continuous saw-toothed.
In the first aspect, the solid beverage of the present invention is a solid product with moisture content not higher than 5 g per 100 g of finished product, which is made from sugar, milk and dairy products, eggs or egg products, fruit juice or edible plant extracts as main raw materials and proper amount of auxiliary materials or food additives, and is in the form of powder, granule or block, and is classified into 3 types of protein type solid beverages, ordinary type solid beverages and baking type solid beverages. For this reason, the soft bag body has good insulation performance, and thesoft bag body 10 is made of a flexible composite sheet material, as shown in fig. 2, the flexible composite sheet material includes anouter packaging layer 11, analuminum foil layer 12 and aninner protection layer 13, which are closely attached in sequence from top to bottom. Theouter package layer 11, thealuminum foil layer 12 and theinner protection layer 13 are connected through an aqueous polyurethane composite adhesive.
Wherein. Theinner protection layer 13 is a polypropylene film, theouter packaging layer 11 is made of a PBAT film, and commodity information is arranged on theouter packaging layer 11. The utility model discloses analuminium foil layer 12 and interiorprotective layer 13 are compound.Aluminum foil layer 12 has good moisture barrier, light-shielding, permeation resistance, and aesthetic appearance. The innerprotective layer 13 is made of polypropylene film, and is colorless, odorless and nontoxic. And has chemical resistance and heat resistance; effectively isolating food from the external space and improving the sanitation of the package.
On the other hand, the outer packaging layer and the waterborne polyurethane composite adhesive make the packaging bag more environment-friendly. PBAT belongs to thermoplastic biodegradable plastics, and a film made of PBAT has excellent biodegradability. The aqueous polyurethane composite adhesive has the advantages of no solvent, no pollution, good film forming property, strong adhesive force, easy mixing with other polymers, particularly emulsion type polymers, and the like, and is beneficial to modification.
The aqueous polyurethane composite adhesive can be referred to the prior art and is not described too much here.
Secondly, the counterfeit sale of the nutritional food has a plurality of practical influences on the credit, the operation and the like of the production enterprises, and along with the continuous disclosure and breakthrough of the printing process, the anti-counterfeiting design of the existing packaging bag is easy to copy, so that the production enterprises suffer from loss and the interests of the consumers are also damaged. Therefore, the second innovative design of the utility model lies in that the local outer surface of the soft bag body is fixedly connected with the anti-counterfeiting sticker.
As shown in fig. 3, theanti-counterfeit sticker 20 includes aprotective layer 23, a printedpaper layer 22, ananti-counterfeit substrate layer 21 and a pasting layer which are sequentially and tightly pasted from top to bottom, the pasting layer is fixedly connected with the outer protective layer of the soft bag body, and the pasting layer is formed by coating an adhesive. Theanti-counterfeiting substrate layer 21 is a flexible sheet made of polyethylene, and iron powder is arranged in theanti-counterfeiting substrate layer 21, so that theanti-counterfeiting sticker 20 has magnetism and can be adsorbed by magnetic force. Through this design, on current anti-fake information's basis, the utility model discloses an anti-fake sticker and magnet inter attraction judge the true and false through magnetic force. And increase the cost and difficulty of counterfeiting.
Wherein, the front surface of the printing paper layer is printed with an anti-counterfeiting pattern, and the anti-counterfeiting pattern is the existing anti-counterfeiting technology, such as a laser pattern, an authenticity inquiry code and the like; and the back surface of the printing paper layer is compounded with the anti-counterfeiting base material layer.
Specifically,anti-fake substrate layer 21 is the flexible sheet that polyethylene made, be provided with the iron powder in theanti-fake substrate layer 21 to make anti-fake sticker have magnetism and can be adsorbed by magnetic force. As one embodiment, theanti-counterfeiting substrate layer 21 is a flexible sheet made of polyethylene, and the polyethylene wraps the iron powder to isolate the iron powder from the outside, so as to prevent the iron powder from being oxidized and losing magnetism.
During preparation, a certain amount of iron powder is added into the molten polyethylene, and the mixture is fully stirred and uniformly mixed. And then forming a film by using equipment such as a coating machine and the like, and die-cutting the film into the anti-counterfeiting base material. Preferably, the thickness of the anti-counterfeiting unit is 0.5-0.8 mm, the magnetism is improved, and the whole thickness is small.
Further, the utility model discloses a still print commodity information on the front of printingply 22, commodity information is pattern, bar code or two-dimensional code. The pattern may be a trade name, trademark, promotional chart, etc.
Further, theprotective layer 23 is a transparent waterproof coating to protect the printed paper layer and the anti-counterfeiting substrate. Such as polypropylene, clear polyvinyl chloride may be used.
Further, the outer contour of theanti-counterfeiting sticker 20 is square.
Other structures of the environment-friendly food packaging bag for the nutritional solid beverage are disclosed in the prior art.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments do not depart from the technical solution of the present invention, and still fall within the scope of the technical solution of the present invention.