阅读说明：本技术 液态产品包装 (Package of liquid products ) 是由 盛维良 孙嫚徽 余强 刘钧 于 2018-05-22 设计创作，主要内容包括：本发明公开了一种液态产品包装,本发明的液态产品包装由内向外依次具有基层、印刷层和防水层,在基层与印刷层之间至少部分具有金属墨层,使得包装外观呈现视觉上的金属光泽和/或金属质感,能够给人以更丰富的视觉体验,显著提升包装品质和美感。(The invention discloses a kind of package of liquid products, package of liquid products of the invention successively has base, printing layer and waterproof layer from inside to outside, at least partly there is metal layer of ink between base and printing layer, so that visual metallic luster and/or metal-like is presented in packaging external appearance, richer visual experience can be given, be obviously improved packaging quality and aesthetic feeling.)

1. a kind of package of liquid products, the package of liquid products has base, printing layer and waterproof layer, feature from inside to outside It is at least partly there is metal layer of ink, so that the package of liquid products appearance is between the base and the printing layer Existing visual metallic luster and/or metal-like.

2. package of liquid products according to claim 1, which is characterized in that between the base and the metal layer of ink With prime coat layer, the surface roughness of the prime coat layer is applied lower than the surface roughness of the base and/or the bottoming The absorbency of layer is lower than the absorbency of the base.

3. package of liquid products according to claim 2, which is characterized in that the prime coat layer is that resinous coat or PE are applied Layer.

4. package of liquid products according to claim 1, which is characterized in that the metallic ink for printing the metal layer of ink uses Metallic pigments quality proportioning be 10%~30%.

5. package of liquid products according to claim 4, which is characterized in that the metallic pigments are the sheet knots of silver dollar type The metal powder of structure.

6. package of liquid products according to claim 4 or 5, which is characterized in that the partial size of the metallic pigments be 5 μm~ 60μm。

7. package of liquid products according to claim 1, which is characterized in that the printing layer is formed by printing, printing plate Site is at least partially below 100% at number, so that the printing layer is higher than 100% site for the degree of appearing of the metal layer of ink At several printing layers for the degree of appearing of the metal layer of ink.

8. package of liquid products according to claim 7, which is characterized in that at least local site is lower than at number 90%.

9. package of liquid products according to claim 1, which is characterized in that the printing layer is formed by ink-jet, and ink droplet covers Lid rate is at least partially below 100%, so that the printing layer covers the degree of appearing of the metal layer of ink higher than 100% ink droplet Degree of appearing of the printing layer of rate for the metal layer of ink.

10. package of liquid products according to claim 9, which is characterized in that at least local ink droplet coverage rate is lower than 90%.

11. package of liquid products according to claim 1, which is characterized in that the printing of the printing layer is using translucent Ink.

12. package of liquid products according to claim 1, which is characterized in that the waterproof layer passes through lamination process combining In the printing layer, the surface roughness Ra of the cooling cylinder for the waterproof layer lamination is lower than 0.4.

13. package of liquid products according to claim 1, which is characterized in that the waterproof layer passes through lamination process combining In the printing layer, the mist degree of the waterproof layer is less than 85%.

Technical field

The present invention relates to composite packaging field, especially a kind of package of liquid products.

Background technique

In the composite packaging field of liquid product (such as food liquid or beverage), with the development of product and the need of client It wants, while compound package material develops towards low cost and high performance direction, beautiful requirement is enriched to packaging material appearance It is increasingly promoted, the metallic luster that compound package material surface is presented can be obviously improved the packaging quality of product, therefore how change The metal-like effect of kind package material surface is also more and more paid close attention to by research and development.

Metallic luster is a kind of gloss intensity, the gloss that the surface after referring to such as medal polish is reflected, as smooth The gloss that is presented of metal smoothening surface.For compound package material especially paper base packaging material surface, the metal of presentation Gloss refers to the picture and text of printing under the irradiation of visible light, can show distinctive metallic luster, form the effect of flash metal luster Fruit increases the natural aesthetic feeling of packaging.Metal-like is not the material of metal, but has the gloss as metal.

In current paperbased packaging material field, realize that there are mainly two types of skills for the visible metal-like of appearance and metallic luster Art: the first, is plastics aluminizer and cardboard to be combined into printing element, or directly printed using aluminized paper.Plastics Aluminizer is in a kind of composite soft packaging material that Plastic film surface plates one layer of very thin metallic aluminium and is formed, general plastics plating Aluminium film is to be process under vacuum conditions, extremely evaporates metallic aluminium heating melting by high temperature under high vacuum state, makes aluminium Steam precipitation be stacked into Plastic film surface, thus make Plastic film surface have metallic luster, plastics aluminizer and cardboard After being combined into printing element, common color printing is done by the side in film, then the side compound with outer layer PE (polyethylene) again Formula, realizing has the packaging material appearance of mirror reflection effect consistent with metallic luster height, high；Second, be will have white painting The cardboard and PE of layer are first compound, then successively type metal is black on the surface PE, common ink and coat (optional).

There is high specular reflectivity and flat and smooth approximate metal watch using the packaging external appearance that first way obtains The luster effect in face.But aluminizer and aluminized paper itself higher cost, and cause the processing technology of packaging material to complicate, and make The recycling and reusing of subsequent packaging material increases difficulty.Also, in filling apparatus, since the presence of aluminizer increases cutter portion The abrasion and consumption of part, so that the service life of spare part is substantially reduced.Therefore this mode packaging material manufacturing cost and it is filling at This is higher.

The second way using metallic ink in PE surface printing to by the way of realizing metallic luster effect, processing technology phase To simple, color presents fuller, and metallic ink folds the metallic luster and feeling of high class that common color ink shows low-key.It is this Method is the problem is that technically generally lead to VOC (volatile organic compound in workshop using the alcohol ink of high volatility Object) content is higher, do not meet the requirement and development trend of environmental protection.Further, since being in PE surface printing, outer layer is not effective Protective layer, being easier ink occurs to fall off causes to influence printing effect, while having biggish ink migration risk, to draw Play foodsafety worry.

Liquid packaging material industry is at present largely using overlay film outside the direct flexographic printing in substrate and ink layer Mode, it is compound by coating technique and PE progress in the outermost layer of paper base compound package material, paper base packing articles can be made to obtain Rub resistance, humidity, waterproof and the functions such as anti-pollution, not only extend the service life of packing articles, also improve packaging print The ornamental value of product.However, because the relationship of flexographic printing ink layer thickness and existing silver inks partial size, directly prints silver inks on paper base Final effect have apparent gap compared with gravure and silk-screen effect, metal sense is not strong.Meanwhile outermost PE overlay film can also Weaken the metal visual effect of existing metallic ink.To solve this problem, the applicant carries out technical research, and final target is It is close to or up to the metal visual effect of existing similar gravure product on the market.

Summary of the invention

The main purpose of the present invention is to provide the liquid that visual metallic luster and metal-like is presented in a kind of appearance Product packaging.

The present invention provides a kind of package of liquid products, package of liquid products has base, printing layer from inside to outside and prevents Water layer, which is characterized in that at least partly there is metal layer of ink, so that package of liquid products appearance is presented between base and printing layer Visual metallic luster and/or metal-like.

Preferred embodiment according to the present invention has prime coat layer, the table of prime coat layer between base and metal layer of ink Surface roughness is lower than the absorbency of base lower than the surface roughness of base and/or the absorbency of prime coat layer.

Preferred embodiment according to the present invention, prime coat layer are resinous coat or PE coating.

Preferred embodiment according to the present invention, the quality proportioning of metallic pigments that the metallic ink of printing metal layer of ink uses for 10%~30%.

Preferred embodiment according to the present invention, metallic pigments are the metal powders of the laminated structure of silver dollar type.

Preferred embodiment according to the present invention, the partial size of metallic pigments are 5 μm~60 μm.

Preferred embodiment according to the present invention, printing layer are formed by printing, and the site of printing plate is at least partially below at number 100%, so that printing layer is higher than 100% site into several printing layers for the saturating of metal layer of ink for the degree of appearing of metal layer of ink Out-degree.

Preferred embodiment according to the present invention, at least local site are lower than 90% at number.

Preferred embodiment according to the present invention, printing layer are formed by ink-jet, and ink droplet coverage rate is at least partially below 100%, So that printing layer is higher than the degree of appearing of metal layer of ink printing layer the appearing for metal layer of ink of 100% ink droplet coverage rate Degree.

Preferred embodiment according to the present invention, at least local ink droplet coverage rate are lower than 90%.

The printing of preferred embodiment according to the present invention, printing layer uses translucent printing ink.

Preferred embodiment according to the present invention, waterproof layer in printing layer, are drenched by lamination process combining for waterproof layer The surface roughness Ra of the cooling cylinder of film is lower than 0.4.

Preferred embodiment according to the present invention, waterproof layer pass through lamination process combining in printing layer, the mist degree of waterproof layer Less than 85%.

Compared with prior art, package of liquid products surface is made to show stronger metal according to the technique and scheme of the present invention Texture and metallic luster give richer visual experience, improve packaging printing ornamental value, while reduce manufacture and Filling cost extends the service life of packing articles.

Detailed description of the invention

The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:

Fig. 1 show the cross-sectional view of the compound package material of one embodiment of the invention

Fig. 2 show the packaging material schematic diagram that printing layer is printed using the colored ink of different transparencies

Fig. 3 show packaging material schematic diagram of the printing layer using different sites at number printing

Fig. 4 show the cross-sectional view of the compound package material of another embodiment of the present invention

Fig. 5 show the waterproof layer packaging material schematic diagram compound using the cooling cylinder of different surface roughness

Fig. 6 show the manufacturing method flow chart of compound package material of the present invention

Fig. 7 show the schematic diagram of package sheet material of the invention

Fig. 8 show seal-packed schematic diagram of the invention

- 4 waterproof layer -5 of base's -3 printing layer of -2 metal layer of ink of -1 prime coat layer

Specific embodiment

To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with drawings and the specific embodiments, to this Invention is described in further detail.

In the following description, the reference of " one embodiment ", " embodiment ", " example ", " example " etc. is shown The embodiment or example so described may include special characteristic, structure, characteristic, property, element or limit, but not each reality Applying example or example all necessarily includes special characteristic, structure, characteristic, property, element or limit.In addition, reusing phrase " one In a embodiment " although it is possible to be to refer to identical embodiment, but be not necessarily referring to identical embodiment.

For the sake of simplicity, some technical features known to those skilled in the art are omitted in being described below.